JP7773253B2 - Silkworm Rearing System - Google Patents

Description

Article 30, paragraph 2 of the Patent Act applies. "KYOTO SMART CITY EXPO 2019" October 3rd and 4th, 2019 Venue: Keihanna Open Innovation Center (KICK) (7-5-1 Seikadai, Seika-cho, Soraku-gun, Kyoto Prefecture) Telecommunications line address: https://www.facebook.com/ https://www.facebook.com/story.php?story_fbid=10215001641137740&id=1330853316 Website publication date: October 3rd, 2019

The present invention relates to a silkworm rearing system .

A silkworm rearing container for rearing silkworms is known. Silkworms and food are stored in the silkworm rearing container. The silkworms in the silkworm rearing container grow by eating the food in the container.

When raising silkworms, it is generally necessary to supply food such as mulberry leaves to the silkworm rearing containers every day (except during the silkworm's sleeping period). The silkworm larval stage lasts approximately 25 days, during which it molts four times. Then, in its final stage, the fifth instar, the silkworm synthesizes silk protein in its body and spins approximately 1,200 meters of silk thread, which it then uses to make a cocoon.

As a related technique, Patent Document 1 describes a sericulture method. In the sericulture method described in Patent Document 1, a sheet of sericulture feed is laid on a flat pallet, and a net is placed on top of that. The net is used by the silkworms to hold on to when they molt.

Attempts to reduce the labor required for sericulture have been introduced in the past. Patent Document 2 describes a method for rearing silkworms using artificial feed, which simplifies the work by using an arm to transfer multiple layers of rearing trays and move the rearing nets used to rear the silkworms. Patent Document 1 also describes that when rearing silkworms in a sterile room, simplifying the work process reduces the intrusion of germs from outside and the impact of bacteria falling inside the room.

Patent Document 3 describes a silkworm rearing device that uses a drive system to circulate rearing cages 10 housed on multiple rearing shelves and automatically transports them to a work opening, in order to reduce labor when rearing large numbers of silkworms.

Japanese Patent Application Laid-Open No. 2004-129546 Patent No. 3657326 Patent No. 6134021

However, in Patent Document 1, the majority of silkworm rearing is done by hand. This increases the cost of raising silkworms. Furthermore, because the majority of silkworm rearing is done by hand, there is a relatively high risk of bacteria being introduced into the silkworm rearing environment.

Furthermore, in the silkworm rearing method described in Patent Document 2, an arm can be used to transfer rearing trays containing artificial feed and move rearing nets, but the supply of feed and the installation of rearing equipment cannot be automated, and not all steps in sericulture are automated.

The silkworm rearing device described in Patent Document 3 uses a drive system to move the rearing cages 10 in a circular motion and automatically transport them to the work entrance, but it does not automate the attachment and detachment of plastic bags or the replacement of rearing cages, and does not automate all sericulture processes.

An object of the present invention is to provide a silkworm rearing system that can rear silkworms in a sterile environment and automate all of the sericulture processes.

The silkworm rearing system according to the present invention comprises:
a silkworm transfer device for transferring silkworms from the first rearing container to the second rearing container;
a first rearing container transport device that transports the first rearing container to a silkworm transfer area;
a second rearing container transport device separate from the first rearing container transport device for transporting the second rearing container;
a first container having a first rearing container storage area;
a heat insulating material disposed along the inner surface of the outer wall of the first container;
an air conditioner for adjusting the temperature inside the first container;
Equipped with
The pressure within the first container is greater than the pressure outside the first container.

According to the silkworm rearing system of the present invention, it is possible to provide a silkworm rearing system that can rear silkworms in a sterile environment and automate all of the sericulture processes.

FIG. 1 is a diagram schematically illustrating a silkworm rearing system according to the first embodiment. FIG. 2 is a flowchart showing an example of a silkworm rearing method according to the first embodiment. FIG. 3 is a diagram schematically illustrating a silkworm rearing system according to the second embodiment. FIG. 4 is a schematic perspective view showing a silkworm rearing system according to the second embodiment. FIG. 5 is a diagram schematically illustrating an example of a food supplying device. FIG. 6 is a schematic perspective view illustrating an example of the first rearing container. FIG. 7 is a diagram schematically illustrating an example of a partition member moving device. FIG. 8 is a flowchart showing an example of the first rearing step. FIG. 9 is a diagram schematically illustrating an example of the first rearing step. FIG. 10 is a schematic perspective view illustrating an example of the first rearing container. FIG. 11 is a schematic cross-sectional view showing an example of an egg transfer device. FIG. 12 is a schematic front view showing an example of an egg transfer device. FIG. 13 is a diagram schematically illustrating a silkworm rearing system according to the second embodiment. FIG. 14 is a schematic perspective view illustrating an example of the second rearing container. FIG. 15 is a schematic perspective view illustrating an example of the second rearing container. FIG. 16 is a flowchart showing an example of a silkworm rearing method according to the second embodiment. FIG. 17 is a diagram schematically illustrating an example of a silkworm transfer device that can be employed in the silkworm rearing system according to the embodiment. FIG. 1 is a plan view of the entire system. FIG. 2 is a plan view of the first container. FIG. 10 is a plan view of the second container. FIG. 21 is a side view of FIG. 20. This is a photo of a group breeding container. 10 is a photograph of a partition member. This is a photograph showing a case where a partition member protrudes from an individual rearing container. This is a photograph of the cocoons being removed from the individual rearing containers. This is a photo of the robot arm. (The excrement collection container is on the right side of the arm, and the cocoon collection container is in front of the arm.) This is a photo taken with a camera. 1 is a photograph of a cocoon pick-up means. This is a photo of the breeding shelf. This is a photograph of the rails of the automatic rearing container storage means. 10 is a photograph of the automatic rearing container storage means. FIG. 10 is an explanatory diagram of a funnel movement method. FIG. 1 is an explanatory diagram of a shuttered funnel. FIG. 10 is an explanatory diagram of a square movement method. FIG. 10 is an explanatory diagram of a wavy grid. FIG. 1 is an explanatory diagram of a mesh-type grid. FIG. 1 is an explanatory diagram of the silkworm dispersion method.

The following describes an automatic sericulture system, automatic sericulture method, program, and storage medium according to an embodiment of the present invention, with reference to the drawings. However, the embodiments described below are examples of an automatic sericulture system, automatic sericulture method, program, and storage medium that embody the technical concept of the present invention, and do not limit the present invention to these, but are equally applicable to other embodiments within the scope of the claims. In the following description, components and parts that have the same function are designated by the same reference numerals, and repeated description of components and parts designated by the same reference numerals will be omitted.

[First embodiment]
A silkworm rearing system 1A and a silkworm rearing method according to a first embodiment will be described with reference to Figures 1 and 2. Figure 1 is a diagram schematically illustrating the silkworm rearing system 1A according to the first embodiment. Figure 2 is a flowchart illustrating an example of the silkworm rearing method according to the first embodiment.

The silkworm rearing system 1A in the first embodiment includes a silkworm transfer device 10 that transfers silkworms from a first rearing container C1 to a second rearing container C2, and a second rearing container transport device 20 that transports the second rearing container C2.

It is preferable that a plurality of silkworms A are collectively reared inside the first rearing container C1. In other words, it is preferable that the first rearing container C1 is a mass rearing container for collectively rearing a plurality of silkworms in a rearing room. For example, 10 to 1,000 silkworms, 30 to 500 silkworms, or 50 to 300 silkworms are collectively reared inside the first rearing container C1. The area of the rearing region in one first rearing container C1 (area in a plan view) is, for example, 100 ^cm2 to 10,000 ^cm2 , 400 ^cm2 to 4,900 ^cm2 , or 900 ^cm2 to 2,500 ^cm2 . The first rearing container C1 is, for example, a container with an open top.

It is preferable that multiple silkworms A are individually reared inside the second rearing container C2. In other words, it is preferable that the second rearing container C2 is an individual rearing container for individually rearing one silkworm in each rearing chamber. In the example shown in FIG. 1, the second rearing container C2 includes multiple rearing chambers SP that are isolated from each other. In the example shown in FIG. 1, the second rearing container C2 includes a first rearing chamber SP1 and a second rearing chamber SP2, and the first rearing chamber SP1 and the second rearing chamber SP2 are isolated from each other. The number of rearing chambers SP provided in the second rearing container C2 is, for example, 10 or more, 30 or more, or 50 or more.

Each breeding chamber SP may be defined by an independent cylindrical container, or by a partition wall disposed within a housing member (e.g., within a container or frame). In other words, the second breeding container C2 may be a collection of multiple cylindrical containers, or may have multiple partition walls disposed inside a housing member that defines the outer wall.

The silkworm transfer device 10 transfers silkworms A from the first rearing container C1 to the second rearing container C2.

In the example shown in Figure 1, the silkworm transfer device 10 transfers silkworms A from the first rearing container C1 to the second rearing container C2 so that only one silkworm A is housed in each rearing room SP (for example, only one silkworm is housed in the first rearing room SP1 and only one silkworm is housed in the second rearing room SP2).

The silkworm transfer device 10 includes, for example, a silkworm holding member 11 and a holding member moving device 12 that moves the silkworm holding member 11 from the first rearing container C1 to the second rearing container C2. The silkworm transfer device 10 may also include a camera 13 that can capture images of the silkworms.

The silkworm holding member 11 is a member capable of holding silkworms. The silkworm holding member 11 may have a first gripping portion 11a and a second gripping portion 11b. In this case, by reducing the distance between the first gripping portion 11a and the second gripping portion 11b, the silkworm holding member 11 can hold a single silkworm. Alternatively, or additionally, the silkworm holding member 11 may have a vacuum suction portion 11c capable of adsorbing the epidermis of the silkworm.

The holding member moving device 12 is, for example, a device that can change the position of the silkworm holding member 11 in three dimensions. The holding member moving device 12 is, for example, a robot arm.

Based on control commands from the control device 30, the camera 13 captures images of multiple silkworms A in the first rearing container C1. The image data acquired by the camera 13 is transmitted to the control device 30 via wired or wireless communication. The control device 30 determines the position and posture of each of the multiple silkworms based on the image data. The control device 30 controls the holding member moving device 12 and the silkworm holding member 11 based on the determination results. The silkworm holding member 11, controlled by the control device 30, holds one silkworm. The control device 30 then controls the holding member moving device 12 to move the silkworm holding member 11 toward one rearing chamber SP (e.g., the first rearing chamber SP1) of the second rearing container C2. The control device 30 controls the silkworm holding member 11 to release the silkworm holding member 11 from its hold on the silkworm. As a result, the silkworm is housed in one rearing chamber SP (e.g., the first rearing chamber SP1) of the second rearing container C2.

The operation of transferring silkworms in the first rearing container C1 to one rearing room SP of the second rearing container C2 is performed repeatedly. For example, after one silkworm is housed in the first rearing room SP1, the camera 13 again captures an image of the multiple silkworms in the first rearing container C1 based on a control command from the control device 30. The image data acquired by the camera 13 is transmitted to the control device 30. The control device 30 determines the position and posture of each of the multiple silkworms based on the image data. The control device 30 controls the holding member moving device 12 and the silkworm holding member 11 based on the determination result. The silkworm holding member 11, controlled by the control device 30, holds one silkworm. The control device 30 then controls the holding member moving device 12 to move the silkworm holding member 11 toward one rearing room SP (e.g., the second rearing room SP2) of the second rearing container C2. The control device 30 controls the silkworm holding member 11 to release the silkworms from their holding. As a result, the silkworms are housed in one of the rearing chambers SP (e.g., the second rearing chamber SP2) of the second rearing container C2.

The second rearing container transport device 20 moves the second rearing container C2 from the silkworm transfer area AR to the second rearing container storage area AR2. The silkworm transfer area AR is an area where the silkworms A are transferred from the first rearing container C1 to the second rearing container C2. On the other hand, the second rearing container storage area AR2 is an area where the second rearing container C2 is stored. In the example shown in Figure 1, a shelf T2 is placed in the second rearing container storage area AR2, and the second rearing container C2 is stored on this shelf T2.

In the example shown in FIG. 1, shelf T2 is a fixed shelf installed in the second rearing container storage area AR2. In addition, the second rearing container transport device 20 transports the second rearing container C2 between the silkworm transfer area AR and the second rearing container storage area AR2. Alternatively, the second rearing container transport device 20 may transport shelf T2 on which the second rearing container C2 is placed between the silkworm transfer area AR and the second rearing container storage area AR2. In other words, shelf T2 may be a movable shelf.

When the second rearing container C2 is in the second rearing container storage area AR2, the silkworms in the second rearing container C2 eat food F and grow.

The second breeding container transport device 20 may include a conveyor such as a belt conveyor or a roller conveyor. Alternatively, or additionally, the second breeding container transport device 20 may include a transport device (e.g., a stacker crane) with a transfer device that transfers the second breeding container C2 to the shelf T2. Based on instructions from the control device 30, the second breeding container transport device 20 transports the second breeding container C2 to a predetermined storage position (an empty storage position among multiple storage positions) in the second breeding container storage area AR2. The second breeding container transport device 20 is driven, for example, by a motor.

The control device 30 controls the operation of the silkworm transfer device 10 and/or the second rearing container transport device 20. The control device 30 may have one or more computers. In other words, one computer may function as the control device 30, or multiple computers may work together to function as the control device 30.

The silkworm rearing system 1 in the first embodiment includes a silkworm transfer device 10 and a second rearing container transport device 20. Therefore, the transfer of silkworms from the first rearing container C1 to the second rearing container C2 and the movement of the second rearing container C2 to which the silkworms have been transferred can be automated. As a result, silkworm rearing is made more efficient. Furthermore, because the transfer of silkworms and the movement of the second rearing container C2 are not performed manually, there is virtually no risk of bacteria being introduced into the silkworm rearing environment.

In the first embodiment, the silkworm rearing system 1A may include a first rearing container transport device 40 that transports the first rearing container C1 from the first rearing container storage area AR1 to the silkworm transfer area AR. The first rearing container transport device 40 is preferably a transport device separate from the second rearing container transport device 20. The first rearing container transport device 40 includes a conveyor such as a belt conveyor or a roller conveyor. The first rearing container transport device 40 may include a transport device with a transfer device that transfers the first rearing container C1 to the shelf T1. The first rearing container transport device 40 is driven, for example, by a motor.

When the silkworm rearing system 1A is equipped with the first rearing container transport device 40, the movement of the first rearing container C1 to the silkworm transfer area AR can be automated. As a result, the rearing of silkworms becomes even more efficient. Furthermore, because the movement of the first rearing container C1 is not performed manually, there is virtually no risk of bacteria being introduced into the silkworm rearing environment.

In the example shown in Figure 1, a shelf T1 is placed in the first rearing container storage area AR1, and the first rearing container C1 is stored on this shelf T1. When the first rearing container C1 is in the first rearing container storage area AR1, the silkworms in the first rearing container C1 eat food and grow.

In the first embodiment, it is preferable that the first rearing container storage area AR1 is located within a sterile atmosphere AT. It is also preferable that the second rearing container storage area AR2 is located within a sterile atmosphere AT. Similarly, it is preferable that the silkworm transfer area AR is located within a sterile atmosphere AT. In this specification, the term "sterile atmosphere AT" refers to an atmosphere within a space that is substantially isolated from the outside and is set so that the amount of microorganisms present is lower than that outside. The cleanliness of the sterile atmosphere AT is, for example, a cleanliness of Class 6 to Class 8, more preferably Class 7 or lower, according to ISO standards (ISO 14644-1:2015). Class 6 cleanliness is equivalent to Class 1000 of the US Federal Standard FED-STD 209E, Class 7 cleanliness is equivalent to Class 10,000 of the US Federal Standard FED-STD 209E, and Class 8 cleanliness is equivalent to Class 100,000 of the US Federal Standard FED-STD 209E.

(Silkworm rearing method)
Next, an example of a silkworm rearing method according to the first embodiment will be described.

In the first step ST1, multiple silkworms are reared in the first rearing container C1. The first step ST1 is the first silkworm rearing process. In the first silkworm rearing process, for example, multiple silkworms A are reared collectively in the first rearing container C1.

In the second step ST2, multiple silkworms in the first rearing container C1 are transferred to the second rearing container C2. This transfer is carried out using the silkworm transfer device 10.

The second step ST2 may include a first transport step of transporting the first rearing container C1 to the silkworm transfer area AR, a second transport step of transporting the second rearing container C2 to the silkworm transfer area AR, and a transfer step of transferring multiple silkworms A from the first rearing container C1 to the second rearing container C2 using the silkworm transfer device 10.

The first transfer process is performed, for example, using the first breeding container transfer device 40. The second transfer process is performed, for example, using the second breeding container transfer device 20. The second transfer process may be performed before the first transfer process, after the first transfer process, or simultaneously with the first transfer process.

In the example shown in FIG. 1, the second rearing container C2 includes multiple rearing rooms SP for individual rearing. In this case, the second step ST2 (silkworm transfer process) may include transferring multiple silkworms A reared in the first rearing container C1 to multiple rearing rooms SP, respectively. In the example shown in FIG. 1, the silkworm transfer device 10 transfers multiple silkworms A reared collectively in the first rearing container C1 to multiple rearing rooms SP, respectively. This makes it possible to smoothly switch from group rearing to individual rearing without introducing germs into the silkworm rearing environment. Note that the silkworm transfer process performed by the silkworm transfer device 10 (i.e., the silkworm transfer process for transferring silkworms A from the first rearing container C1 to the second rearing container C2) may include transferring the silkworms in the first rearing container C1 to the food support portion PL (see FIG. 14) in the second rearing container C2. Alternatively, the silkworm transfer process (i.e., the silkworm transfer process of transferring silkworms A from the first rearing container C1 to the second rearing container C2) performed by the silkworm transfer device 10 may include transferring the silkworms in the first rearing container C1 to a food support part PL (see Figure 5) outside the second rearing container C2, and inserting the food support part PL with the silkworms A supported thereon into the second rearing container C2.

After the second step ST2 is performed, the second rearing container C2 containing the transferred silkworms A is transported from the silkworm transfer area AR to the second rearing container storage area AR2. This transport is performed, for example, using the second rearing container transport device 20.

In the third step ST3, multiple silkworms A are reared in the second rearing container C2. The third step ST3 is the second silkworm rearing process. In the second silkworm rearing process, for example, each of the multiple silkworms A is individually reared in an independent rearing room SP.

In the silkworm rearing method of the first embodiment, the transfer of silkworms from the first rearing container C1 to the second rearing container C2 is performed by the silkworm transfer device 10. Therefore, the transfer of silkworms from the first rearing container C1 to the second rearing container C2 can be automated. As a result, the rearing of silkworms is made more efficient. Furthermore, because the transfer of silkworms is performed by the silkworm transfer device 10, the silkworm rearing environment is substantially free of germs.

Furthermore, in the first embodiment, when multiple silkworms A are collectively reared in the first rearing container C1 and each of the multiple silkworms A is individually reared in the second rearing container C2, young silkworms can be efficiently collectively reared in a small space, and older silkworms can be individually reared in a state where stress is reduced. Therefore, the first embodiment can simultaneously achieve space-saving silkworm rearing, efficient silkworm rearing, and stress reduction for the silkworms. Furthermore, when silkworms are allowed to form cocoons in an individual rearing room, the location where the cocoons are formed can be localized. In this case, cocoon collection (for example, cocoon collection by a robot) becomes easier.

Second Embodiment
A silkworm rearing system 1B and a silkworm rearing method according to a second embodiment will be described with reference to FIGS. 3 to 16 . FIG. 3 is a diagram schematically illustrating the silkworm rearing system 1B according to the second embodiment (a schematic plan view schematically illustrating the interior of the container 2). FIG. 4 is a schematic perspective view schematically illustrating the silkworm rearing system 1B according to the second embodiment. FIG. 5 is a diagram schematically illustrating an example of a feed supplying device 60. FIG. 6 is a schematic perspective view schematically illustrating an example of a first rearing container C1. FIG. 7 is a diagram schematically illustrating an example of a partition member moving device 70. FIG. 8 is a flowchart illustrating an example of a first rearing step. FIG. 9 is a diagram schematically illustrating an example of the first rearing step. FIG. 10 is a schematic perspective view schematically illustrating an example of the first rearing container C1. FIG. 11 is a schematic cross-sectional view schematically illustrating an example of an egg transfer device 80. FIG. 12 is a schematic front view schematically illustrating an example of an egg transfer device 80. Fig. 13 is a diagram schematically showing a silkworm rearing system 1B in the second embodiment. Fig. 14 is a schematic perspective view schematically showing an example of a second rearing container C2. Fig. 15 is a schematic perspective view schematically showing an example of a second rearing container C2. Fig. 16 is a flowchart showing an example of a silkworm rearing method in the second embodiment.

The silkworm rearing system 1B in the second embodiment includes a container 2 in which at least one of the multiple devices constituting the silkworm rearing system 1B is placed. In the second embodiment, differences from the first embodiment will be mainly described, and repetitive explanations of matters already described in the first embodiment will be omitted. Therefore, it goes without saying that matters already described in the first embodiment can be applied to the second embodiment, even if they are not explicitly described in the second embodiment. This also applies to the other embodiments.

The silkworm rearing system 1B includes, for example, at least one of a silkworm transfer device 10, a first rearing container transport device 40, a second rearing container transport device 20, and a control device 30. The silkworm transfer device 10, the first rearing container transport device 40, the second rearing container transport device 20, and the control device 30 have already been described in the first embodiment, so repeated description of these components will be omitted.

In the example shown in Figure 3, the silkworm rearing system 1B has two containers 2 (more specifically, a first container 2A and a second container 2B). However, the number of containers 2 provided in the silkworm rearing system 1B may be one, or three or more.

In the example shown in Figure 3, a second breeding container transport device 20 is placed inside container 2 (more specifically, second container 2B). Container 2 is capable of defining a substantially closed space (more specifically, a sterile atmosphere AT). Therefore, when the second breeding container transport device 20 is placed inside container 2, it is difficult for germs to get into the transport path of the second breeding container C2.

When a transport device is installed in a closed space, it is generally installed within a building that defines the closed space. In contrast, in the second embodiment, a transport device such as the second breeding container transport device 20 is placed within a container 2. Even when the container 2 is placed outdoors, it is possible to define a substantially closed space. Therefore, there is no need to construct a new building to place the transport device. Furthermore, even when the container 2 is placed within an existing building, the container 2 defines a substantially closed space, so the existing building does not require a high level of airtightness. Furthermore, because the container 2 can be transported by vehicle, ship, etc., there is a high degree of freedom in the placement of the container 2. Furthermore, once a container is placed in a designated location, it can easily be moved to another location.

Container 2 is a portable container standardized, for example, by ISO 668 (e.g., ISO 668:1995, ISO 668:2005, ISO 668:2013, etc.). Container 2 may be, for example, a 45-foot container (such as an ISO 668 "1EEE" container or "1EE" container), a 40-foot container (such as an ISO 668 "1AAA" container, "1AA" container, "1A" container, or "1AX" container), a 30-foot container (such as an ISO 668 "1BBB" container, "1BB" container, "1B" container, or "1BX" container), a 20-foot container (such as an ISO 668 "1CC" container, "1C" container, or "1CX" container), a 10-foot container (such as an ISO 668 "1D" container or "1DX" container), a 6.5-foot container (such as an ISO 668 "1E" container), or a 5-foot container (such as an ISO 668 "1F" container). Hereinafter, portable containers standardized by ISO 668 will be referred to as "ISO containers."

(First container 2A)
In the example shown in Fig. 1, the silkworm rearing system 1B includes a first container 2A. The first container 2A is, for example, an ISO container. The length of the first container 2A is, for example, 45 feet, 40 feet, 30 feet, 20 feet, 10 feet, 6.5 feet, or 5 feet.

In the example shown in FIG. 1, the first container 2A has a first rearing container storage area AR1. In the example shown in FIG. 1, a heat insulating material 91 is arranged along the inner surface Ws of the outer wall Wa of the first container 2A. In addition, an air conditioning unit 92 is arranged in the first container 2A to adjust the temperature inside the first container 2A.

When the silkworm rearing system 1B includes a first container 2A having a first rearing container storage area AR1, insulation material 91, and an air conditioning unit 92, it is possible to set a suitable silkworm rearing environment within the first rearing container C1. The air conditioning unit 92 may be an air conditioning unit capable of adjusting temperature, or may be an air conditioning unit capable of adjusting temperature and humidity. The air conditioning unit 92 maintains the temperature of the first rearing container storage area AR1 at, for example, between 20 degrees Celsius and 35 degrees Celsius, or between 25 degrees Celsius and 30 degrees Celsius.

When the air conditioning unit 92 is activated, the pressure inside the first container 2A is set to be higher than the pressure outside the first container 2A. The pressure difference between the pressure inside the first container 2A and the pressure outside the first container 2A is, for example, 10 Pa (Pascal) or more, 100 Pa or more, 1000 Pa or more, 3000 Pa or more, or 5000 Pa or more. By setting the pressure inside the first container 2A to be higher than the pressure outside the first container 2A, the risk of bacteria being introduced into the first container 2A is reduced.

When the air conditioning unit 92 is activated, the pressure within the first rearing container storage area AR1 is preferably set to be higher than the pressure in the area outside the first rearing container storage area AR1 within the first container 2A. The pressure difference between the two areas is, for example, 10 Pa (Pascal) or more, 100 Pa or more, or 1000 Pa or more. By setting the pressure within the first rearing container storage area AR1 to be higher than the pressure in the area outside the first rearing container storage area AR1, the risk of bacteria being introduced into the first rearing container storage area AR1 is reduced. The air supply port 92a of the air conditioning unit 92 may be located in the first rearing container storage area AR1 to make the pressure within the first rearing container storage area AR1 higher than the pressure in the area outside the first rearing container storage area AR1.

The air conditioning unit 92 includes a fan 921 that supplies air from outside the first container 2A into the first container 2A, a heat exchanger 922 that raises or lowers the temperature of the air, and a filter 923 (e.g., a HEPA filter) that removes germs from the air.

The air conditioning unit 92 may include a circulation flow path that circulates the air in the first container 2A within the first container 2A, and a filter 924 (e.g., a HEPA filter) disposed in the circulation flow path. When the air conditioning unit 92 includes a circulation flow path and a filter 924, germs that have invaded the first container 2A are removed by the filter 924.

(Second container 2B)
In the example shown in Fig. 3, the silkworm rearing system 1B includes a second container 2B. The second container 2B is, for example, an ISO container. The length of the second container 2B is, for example, 45 feet, 40 feet, 30 feet, 20 feet, 10 feet, 6.5 feet, or 5 feet.

In the example shown in FIG. 3, the second container 2B has a second breeding container storage area AR2. In the example shown in FIG. 3, insulation material 91 is arranged along the inner surface Ws of the outer wall Wa of the second container 2B. The second container 2B also has an air conditioning unit 92 that adjusts the temperature inside the second container 2B. The air conditioning unit 92 arranged in the second container 2B is the same as the air conditioning unit 92 arranged in the first container 2A. Like the air conditioning unit 92 arranged in the first container 2A, the air conditioning unit 92 arranged in the second container 2B includes a fan 921, a heat exchanger 922, filters (923, 924), etc. The air conditioning unit 92 maintains the temperature of the second breeding container storage area AR2 at a temperature of, for example, 20°C to 35°C, or 25°C to 30°C.

When the air conditioning unit 92 is activated, the pressure inside the second container 2B is set to be higher than the pressure outside the second container 2B. The pressure difference between the pressure inside the second container 2B and the pressure outside the second container 2B is, for example, 10 Pa (Pascal) or more, 100 Pa or more, 1000 Pa or more, 3000 Pa or more, or 5000 Pa or more.

When the air conditioning unit 92 is activated, the pressure within the second rearing container storage area AR2 is preferably set to be higher than the pressure in the area outside the second rearing container storage area AR2 within the second container 2B. The pressure difference between the two areas is, for example, 10 Pa (Pascal) or more, 100 Pa or more, or 1000 Pa or more. The air supply port 92a of the air conditioning unit 92 may be located in the second rearing container storage area AR2 to make the pressure within the second rearing container storage area AR2 higher than the pressure in the area outside the second rearing container storage area AR2.

In the example shown in Figure 3, the silkworm rearing system 1B has a first container 2A having a first rearing container storage area AR1 and a second container 2B having a second rearing container storage area AR2. The second container 2B is a separate container from the first container 2A. In this case, the silkworm rearing system 1B can independently set a rearing environment (first container 2A) for rearing relatively young silkworms and a rearing environment (second container 2B) for rearing relatively older silkworms. For example, by rearing relatively young silkworms in groups, it is possible to rear a large number of silkworms in a relatively small space. On the other hand, by rearing relatively older silkworms individually, it is possible to reduce the stress acting on the silkworms.

Note that relatively older silkworms require a relatively larger rearing space. For this reason, the size of the second container 2B having the second rearing container storage area AR2 may be larger than the size of the first container 2A having the first rearing container storage area AR1. Alternatively, or additionally, multiple containers 2 may be arranged so that the number of second containers 2B having the second rearing container storage area AR2 is greater than the number of first containers 2A having the first rearing container storage area AR1. For example, one first container 2A may be connected to two or more second containers 2B. The number of second containers 2B connected to the first container 2A may be three or more, five or more, or ten or more.

(Container connection section 95)
In the example shown in FIG. 3 , the silkworm rearing system 1B includes a container connector 95 connecting the first container 2A and the second container 2B. The presence of the container connector 95 prevents the intrusion of germs into the first container 2A or the second container 2B. More specifically, when the first rearing container C1, the second rearing container C2, etc. are transported between the first container 2A and the second container 2B, germs may invade through the opening of the first container 2A or the opening of the second container 2B. In the example shown in FIG. 3 , the first container 2A and the second container 2B are connected by the container connector 95 (more specifically, the openings of the first container 2A and the second container 2B are covered by the container connector 95), reducing the risk of germs invading through these openings. The container connector 95 may be made of a flexible member made of a synthetic resin such as vinyl, a rigid member such as a metal plate, or a combination of a flexible member and a rigid member.

In the example shown in Figure 3, a first door DR1 is located at the opening of the first container 2A, and a second door DR2 is located at the opening of the second container 2B. However, the first door DR1 and/or the second door DR2 may be omitted.

(Food supply device 60)
In the example shown in Fig. 3, the silkworm rearing system 1B includes a feed supplying device 60. The feed supplying device 60 is a device that supplies feed (silkworm feed) to the first rearing container C1 or the second rearing container C2. When the silkworm rearing system 1B includes the feed supplying device 60, the supply of feed to the first rearing container C1 or the second rearing container C2 can be automated. In this case, the introduction of germs into the silkworm rearing environment is suppressed when the feed is supplied.

In the example shown in Figure 3, the feed supplying device 60 is located in the first container 2A. Alternatively, or additionally, the feed supplying device 60 may be located in the second container 2B. When the feed supplying device 60 is located in the container 2, the introduction of germs into the silkworm rearing environment during feed supply is more effectively prevented. However, if the silkworm rearing system 1B does not have the above-mentioned container 2, the feed supplying device 60 may be located in any location other than the container 2.

An example of a food supplying device 60 will be described with reference to Figure 5. The food supplying device 60 includes, for example, a food storage container 61, a nozzle member 62, a moving device 63, a food supply pipe 64, and a food supply pump 65.

The feed storage container 61 is a container for temporarily storing silkworm feed. For example, mulberry F1 (more specifically, mulberry leaf powder), soybean pulp F2, and water are poured into the feed storage container 61. In the example shown in Figure 5, mulberry F1 is poured into the feed storage container 61 from the mulberry container, and soybean pulp F2 is poured into the feed storage container 61 from the soybean pulp container. This pouring may be performed automatically by a mulberry supplying device and/or soybean pulp supplying device, or may be performed manually.

In the example shown in FIG. 5, a water supply pipe 67 is connected to the food storage container 61. Water is automatically supplied to the food storage container 61 using the water supply pipe 67. In the example shown in FIG. 5, an on-off valve 671 and a filter 672 are disposed in the water supply pipe 67. The on-off valve 671 and the control device 30 are connected via wire or wirelessly to enable signal transmission, and the on-off valve 671 opens and closes based on commands from the control device 30. When the on-off valve 671 is open, water is supplied to the food storage container 61, and when the on-off valve is closed, water is not supplied to the food storage container 61. The filter 672 removes foreign matter or germs from the water.

In the example shown in Figure 5, mulberry leaves, soy pulp, and water placed in feed storage container 61 are stirred within feed storage container 61. This stirring is performed by a stirrer 611 driven by motor M1. Motor M1 and control device 30 are connected via wire or wirelessly to enable signal transmission, and motor M1 is driven based on commands from control device 30. When motor M1 is driven, stirrer 611 stirs the mixed feed containing mulberry leaves, soy pulp, and water.

A mixed feed (more specifically, a dough feed) containing mulberry, soybean pulp, and water is supplied from the feed storage container 61 toward the nozzle member 62 by the feed supply pump 65. In the example shown in FIG. 5, the feed supply pump 65 may include a screw conveyor or a snake pump. In the example shown in FIG. 5, the feed supply pump 65 includes a motor M2 and a rotating shaft 651 driven by the motor M2. The feed supply pump 65 may include a blade member 652 attached to the rotating shaft 651. Alternatively, or additionally, the rotating shaft 651 may be a non-linear rotating shaft (e.g., a spiral-shaped rotating shaft). In this case, the blade member 652 may be omitted.

Motor M2 and control device 30 are connected via wire or wirelessly to enable signal transmission, and motor M2 is driven based on commands from control device 30. When motor M2 is driven, rotating shaft 651 rotates. As a result, rotating shaft 651 or blade member 652 attached to rotating shaft 651 pushes bait (paste bait) from the upstream side of bait supply pump 65 toward the downstream side of bait supply pump 65. In the example shown in Figure 5, the outlet of bait storage container 61 is connected to the upstream side of bait supply pump 65. Then, bait (paste bait) discharged from the outlet of bait storage container 61 is supplied to the upstream side of bait supply pump 65. In the example shown in Figure 5, bait discharged from bait supply pump 65 is supplied to nozzle member 62 via bait supply pipe 64.

The food supply pipe 64 may be a rigid pipe, a flexible pipe, or partly a rigid pipe and partly a flexible pipe.

In the example shown in Figure 5, the food supply pipe 64 is a pipe that connects the food storage container 61 and the nozzle member 62. The above-mentioned food supply pump 65 is located midway along the food supply pipe 64.

In the example shown in Figure 5, an on-off valve 641 is disposed in the bait supply pipe 64. The on-off valve 641 and the control device 30 are connected via wire or wirelessly so that signals can be transmitted, and the on-off valve 641 opens and closes based on commands from the control device 30. When the on-off valve 641 is open, bait is supplied to the nozzle member 62-1, and when the on-off valve 641 is closed, bait is not supplied to the nozzle member 62-1.

In the example shown in Figure 5, the food supply pipe 64 includes a main pipe 64m and a first branch pipe 64d. The first branch pipe 64d is equipped with the on-off valve 641 described above, and is connected to the nozzle member 62-1 described above.

The food supply pipe 64 may include a second branch pipe 64e. In the example shown in Figure 5, an on-off valve 643 is disposed in the second branch pipe 64e, which is connected to the second nozzle member 62-2. The on-off valve 643 and the control device 30 are connected via wire or wirelessly to enable signal transmission, and the on-off valve 643 opens and closes based on commands from the control device 30.

In the example shown in Figure 5, the main pipe 64m and the first branch pipe 64d are connected via branch portion D1. Also, in the example shown in Figure 5, the main pipe 64m and the second branch pipe 64e are connected via branch portion D2.

In the example shown in Figure 5, the bait supply pipe 64 includes a return pipe 64r. When the bait supply pipe 64 includes a return pipe 64r, excess bait flowing through the main pipe 64m that is not supplied to the nozzle member 62 is returned to the bait storage container 61 via the return pipe 64r. In the example shown in Figure 5, the portion of the bait supply pipe 64 between the branch D1 and the bait storage container 61 constitutes the return pipe 64r. An on-off valve 645 may be provided in the return pipe 64r.

The nozzle member 62 (nozzle member 62-1 or second nozzle member 62-2) has an opening 62h that ejects bait. In the example shown in Figure 5, the nozzle member 62-1 has multiple nozzles, including a first nozzle 621 and a second nozzle 622. The opening area (or diameter) of the ejection portion (first opening) of the first nozzle 621 is smaller than the opening area (or diameter) of the ejection portion (second opening) of the second nozzle 622. The opening area (or diameter) of the ejection portion (second opening) of the second nozzle 622 is also smaller than the opening area (or diameter) of the ejection portion (third opening) of the third nozzle 623. The nozzle member 62-1 has a switching valve 620 that operates, for example, in response to a command from the control device 30. The switching valve 620 selectively supplies bait to one of the multiple nozzles (621, 622, 623). More specifically, when the switching valve 620 operates based on a command from the control device 30 to connect the food supply pipe 64 and the first nozzle 621, food is discharged from the opening of the first nozzle 621. Furthermore, when the switching valve 620 operates based on a command from the control device 30 to connect the food supply pipe 64 and the second nozzle 622, food is discharged from the opening of the second nozzle 622. The food discharged from the second nozzle 622 is thicker than the food discharged from the first nozzle 621. Furthermore, when the switching valve 620 operates based on a command from the control device 30 to connect the food supply pipe 64 and the third nozzle 623, food is discharged from the opening of the third nozzle 623. The food discharged from the third nozzle 623 is thicker than the food discharged from the second nozzle 622.

In the example shown in FIG. 5, the second nozzle member 62-2 includes one nozzle. The bait ejected from the nozzle of the second nozzle member 62-2 is thicker than the bait ejected from the nozzle of the nozzle member 62-1 (e.g., the first nozzle 621, the second nozzle 622, or the third nozzle 623). Alternatively, the thickness of the bait ejected from the nozzle of the second nozzle member 62-2 may be approximately the same as the thickness of the bait ejected from the third nozzle 623.

The moving device 63 is a device that moves the nozzle member 62 relative to the bait support part PL. In the example shown in Figure 5, the moving device 63 is a nozzle moving device that moves the nozzle member 62. Alternatively, the moving device 63 may be a device that moves the bait support part PL.

The moving device 63 and the control device 30 are connected via wire or wirelessly to enable signal transmission, and the moving device 63 operates based on commands from the control device 30. The moving device 63 changes the position of the nozzle member 62 in three dimensions based on commands from the control device 30. In the example shown in Figure 5, the moving device 63 includes a robot arm 630.

In the example shown in Figure 5, the moving device 63 (more specifically, the moving device 63-1) moves the nozzle member 62-1 relative to the bait support portion PL. The bait support portion PL is, for example, a bait support portion disposed within the first rearing container C1. The bait support portion PL is preferably made of a mesh-like member (in other words, a net-like member). In this case, silkworm droppings fall below the bait support portion PL through the openings in the mesh-like member. Therefore, the rearing environment for the silkworms is less likely to deteriorate in the area above the bait support portion PL.

In the example shown in FIG. 5, the moving device 63 (more specifically, the second moving device 63-2) moves the second nozzle member 62-2 relative to the bait support portion PL. The bait support portion PL is, for example, a bait support portion that will be placed in the second rearing container C2. The bait support portion PL is preferably made of a mesh-like member (in other words, a net-like member). In this case, silkworm droppings fall below the bait support portion PL through the openings in the mesh-like member. Therefore, the rearing environment for the silkworms is less likely to deteriorate in the area above the bait support portion PL.

(Partition member P)
In the example shown in FIG. 5 , a partition member P is disposed inside the first rearing container C1. As shown in FIG. 6 , the partition member P (more specifically, the first partition member P1) divides the space within the first rearing container C1 into a first region R1 where silkworms are reared and a second region R2 where silkworm entry is restricted (i.e., a region into which silkworms cannot enter). The position of the partition member P can be changed between a first position (see the upper diagram in FIG. 6 ) where the partition member separates the first region R1 from the second region R2, and a second position (see the lower diagram in FIG. 6 ) where the partition member no longer provides a partition. The first position (i.e., the partition position) is, for example, the position of the partition member P when the partition member P is disposed in the first rearing container C1. The second position (i.e., the non-partition position) is, for example, the position of the partition member P when the partition member P is removed from the first rearing container C1.

(Partition member moving device 70)
7, the silkworm rearing system 1B includes a partition member moving device 70 that moves the partition member P arranged in the first rearing container C1. The partition member moving device 70 moves the partition member P, for example, from a first position within the first rearing container C1 to a second position outside the first rearing container C1.

In the example shown in Figure 7, the partition member moving device 70 includes a partition member holding portion 71 and a holding portion moving device 72. The partition member holding portion 71 is a portion capable of holding a partition member P. The partition member holding portion 71 may include a first gripping portion 71a and a second gripping portion 71b. In this case, by reducing the distance between the first gripping portion 71a and the second gripping portion 71b, the partition member holding portion 71 can grip the partition member P. Alternatively, the partition member holding portion 71 may include a hook portion 71c (if necessary, see Figure 5) from which the partition member P can be hung.

The holder moving device 72 includes, for example, a robot arm. The robot arm of the holder moving device 72 may be the robot arm 630 of the moving device 63-1 shown in FIG. 5, or it may be a robot arm separate from the robot arm 630 of the moving device 63-1. There are no particular restrictions on the shape or structure of the partition member moving device 70, as long as it is a device capable of moving the partition member P.

The partition member moving device 70 and the control device 30 are connected via wire or wirelessly to enable signal transmission, and the partition member moving device 70 operates based on commands from the control device 30. More specifically, the partition member holding section 71 of the partition member moving device 70 holds the partition member P based on commands from the control device 30. Then, the holder moving device 72 of the partition member moving device 70 moves the partition member holding section 71 in the direction from the first position toward the second position based on commands from the control device 30. In this way, the partition member P is removed from the first rearing container C1.

(First silkworm rearing process)
An example of the first rearing step (the above-mentioned first step ST1) of rearing a plurality of silkworms A in the first rearing container C1 will be described in more detail with reference to Figures 8 and 9 .

In step ST201, multiple silkworms are raised in a first region R1 on one side of a first partition member P1 placed in a first rearing container C1. Step ST201 is performed, for example, in a first rearing container C1 placed in a first rearing container storage area AR1. In the example shown in Figure 9(b), multiple first rearing containers C1 are stored in the first rearing container storage area AR1. The number of first rearing containers C1 stored in the first rearing container storage area AR1 is, for example, 10 or more, 50 or more, or 100 or more.

In step ST201, food F and multiple silkworms A are placed in the first region R1. Also, in step ST201, food F and silkworms A are not placed in the second region R2.

Silkworm food F is supplied in advance to the first region R1 of the first rearing container C1. The food is supplied to the first region R1, for example, via the nozzle member 62-1 of the food supply device 60 (more specifically, the first nozzle 621 described above) (see FIG. 9(a)). The thickness (in other words, the diameter) of the food supplied to the first region R1 is, for example, 3 mm or less, or 2 mm or less. The multiple silkworms A in the first region R1 grow by eating the food F in the first region R1. Note that if the food support member PL is a mesh-like member (in other words, a net-like member), the silkworm droppings M will fall below the food support member PL. This prevents the rearing environment for the silkworms on the food support member PL from deteriorating.

In step ST202, food F is supplied to the second region R2 on the other side of the first partition member P1. Step ST202 is performed, for example, after the first rearing container C1 has been transported from the first rearing container storage region AR1 toward the food supply device 60.

The feed F is supplied to the second region R2, for example, via the nozzle member 62-1 of the feed supply device 60 (more specifically, the second nozzle 622 described above) (see Figure 9(c)). In step ST202, since there are no silkworms A in the second region R2, the silkworms A do not get in the way when supplying the feed F to the second region R2. It is preferable that the thickness of the feed F supplied from the second nozzle 622 is thicker than the thickness of the feed F supplied from the first nozzle 621. The thickness (in other words, the diameter) of the feed F supplied from the second nozzle 622 is, for example, 6 mm or less, or 5 mm or less.

In step ST203, the state (partition state) in which the first region R1 and the second region R2 are separated by the first partition member P1 is released (see FIG. 9(d)). This release is performed, for example, by the partition member moving device 70 moving the first partition member P1. In the example shown in FIG. 9(d), this release is performed by the partition member moving device 70 removing the first partition member P1 from the first breeding container C1. In the example shown in FIG. 9(d), the partition member moving device 70 has a hook portion 71c that can engage with the engagement portion Pa of the partition member P. Alternatively, the partition member moving device 70 may have a gripping portion that can grip the partition member P.

When the partition state provided by the first partition member P1 is released, the first region R1 and the second region R2 are combined, enlarging the area in which multiple silkworms A are reared. This provides a more suitable rearing environment for the multiple silkworms grown in the first region R1.

After step ST203 is performed, the first rearing container C1 is transported to the first rearing container storage area AR1. Fresh food F is supplied to the first rearing container C1 in step ST202. Therefore, the multiple silkworms A eat the fresh food and continue to grow.

In the example shown in Figure 9, in addition to the first partition member P1, a second partition member P2 is arranged in the first rearing container C1. The second partition member P2 is a member that separates the new first region Rn1 (enlarged first region) from the new second region Rn2 after the first partition member P1 is removed from the first rearing container C1 (see Figure 9(d)).

If the second partition member P2 is placed in the first rearing container C1, food F is supplied to the new second region Rn2 in step ST204. Step ST204 is performed, for example, after the first rearing container C1 is transported from the first rearing container storage region AR1 toward the food supply device 60.

Feed is supplied to the new second region Rn2, for example, via the nozzle member 62-1 of the feed supply device 60 (more specifically, the third nozzle 623 described above) (see Figure 9(e)). Note that the thickness of the feed F supplied from the third nozzle 623 is preferably thicker than the thickness of the feed F supplied from the second nozzle 622. The thickness (in other words, the diameter) of the feed F supplied from the third nozzle 623 is, for example, 7 mm or less.

In step ST205, the state (partition state) in which the new first region Rn1 and the new second region Rn2 are separated by the second partition member P2 is released (see FIG. 9(f)). This release is performed, for example, by the partition member moving device 70 moving the second partition member P2. In the example shown in FIG. 9, this release is performed by the partition member moving device 70 removing the second partition member P2 from the first breeding container C1.

In the example shown in Figure 9, the first rearing container C1 is a tray (in other words, a relatively shallow container with an open top). Because the top of the first rearing container C1 is open, it is easy to remove the partition member P from the first rearing container C1.

In the example shown in FIG. 9, the number of partition members P arranged in the first rearing container C1 is two. Alternatively, the number of partition members P arranged in the first rearing container C1 may be one, or three or more. Also, in the example shown in FIG. 6, the partition member P has an L-shape in plan view. However, the shape of the partition member P is not limited to the example shown in FIG. 6. For example, as shown in FIG. 10, the partition member P may have a rectangular frame shape in plan view.

(Egg transfer device 80)
An example of an egg transfer device 80 for transferring silkworm eggs to the first rearing container C1 (for example, a tray) will be described with reference to Figures 11 and 12 .

The egg transfer device 80 transfers silkworm eggs E from a container C3 containing multiple silkworm eggs E to the first rearing container C1. When the silkworm rearing system 1 includes the egg transfer device 80, the process of transferring silkworm eggs E to the first rearing container C1 (e.g., a tray) is automated. As a result, silkworm rearing is made more efficient. Furthermore, because the silkworm eggs E are transferred automatically by the egg transfer device 80, there is virtually no contamination of the silkworm rearing environment with unwanted bacteria. The egg transfer device 80 is placed, for example, within the container 2 (more specifically, within the first container 2A). When the egg transfer device 80 is placed within the container 2, the introduction of unwanted bacteria into the silkworm rearing environment is more effectively prevented.

In the example shown in Figure 11, the egg transfer device 80 includes a suction tube 81 that sucks up the silkworm eggs E in the liquid, and a suction tube movement device 86 that moves the suction tube 81 relative to the first rearing container C1. In the liquid, dead silkworm eggs E1 tend to float more easily than live silkworm eggs E2. Therefore, by sucking up the silkworm eggs in the liquid (more specifically, silkworm eggs that have sunk in the liquid), it is possible to select and pick up live silkworm eggs E2.

The liquid in container C3 is, for example, a disinfectant. The silkworm eggs E are sterilized by immersing them in the disinfectant in container C3. In this case, the risk of bacteria being introduced into the first rearing container C1 when the silkworm eggs E are transferred to the first rearing container C1 is reduced.

In order to facilitate the pickup of silkworm eggs E from container C3, it is preferable that the tip of container C3 has a tapered shape that narrows toward the tip. By having a tapered tip of container C3, multiple silkworm eggs E tend to gather near the bottom of container C3. Therefore, simply by inserting the suction tube 81 near the bottom of container C3 (in other words, the deepest part of container C3), it is possible to position the tip of the suction tube 81 near the silkworm eggs E.

In the example shown in Figure 11, the suction pipe 81 is connected to a vacuum pump 84 via a pipe 82. An on-off valve 83 is also provided on the pipe 82. When the on-off valve 83 is opened while the tip of the suction pipe 81 is positioned in the liquid in the container C3, the suction pipe 81 sucks up one silkworm egg E. Alternatively, suction force may be generated in the suction pipe 81 by moving the piston relative to the cylinder. In this case, the vacuum pump 84 may be omitted.

After the suction tube 81 has sucked in the silkworm eggs E, the suction tube moving device 86 moves the suction tube 81 in the direction from the container C3 toward the first rearing container C1. When the tip of the suction tube 81 reaches above the first rearing container C1, the suction tube 81 releases the silkworm eggs E. This release may be achieved by blowing air into the suction tube 81, or by opening the suction tube 81 to the atmosphere.

In the example shown in Figure 11, a partition member P is placed in the first rearing container C1. In this case, it is preferable that the egg transfer device 80 transfers silkworm eggs E only to the area on one side of the partition member P (first area R1). In other words, it is preferable that the egg transfer device 80 not transfer silkworm eggs E to the area on the other side of the partition member P (second area R2). Note that if a partition member P is not placed in the first rearing container C1, the egg transfer device 80 can transfer silkworm eggs E to any position in the first rearing container C1.

The transfer of silkworm eggs E by the egg transfer device 80 may be performed after the food F has been placed in the first rearing container C1 (more specifically, the first region R1), or may be performed before the food F has been placed in the first rearing container C1 (more specifically, the first region R1).

In the example shown in FIG. 11, the suction tube moving device 86 can move the suction tube 81 along the vertical direction (in other words, the Z direction). In the example shown in FIG. 11, the suction tube moving device 86 can move the suction tube 81 along the first horizontal direction (in other words, the X direction).

As shown in FIG. 12, the egg transfer device 80 may be equipped with multiple suction tubes 81. When the egg transfer device 80 is equipped with multiple suction tubes 81, the egg transfer device 80 is able to simultaneously transfer multiple silkworm eggs to the first rearing container C1. In the example shown in FIG. 12, the egg transfer device 80 is equipped with six suction tubes 81. Alternatively, the egg transfer device 80 may be equipped with one, two, three, four, five, or seven or more suction tubes 81.

In the example shown in FIG. 12, the suction tube moving device 86 can move the suction tube 81 along the second horizontal direction (in other words, the Y direction perpendicular to the X and Z directions). In the examples shown in FIGS. 11 and 12, the suction tube moving device 86 can move the suction tube 81 three-dimensionally. Alternatively, the suction tube moving device 86 may be able to move the suction tube 81 two-dimensionally (for example, the suction tube moving device 86 may be able to move the suction tube 81 only in a direction along a plane parallel to the XZ plane).

As shown in FIG. 13, the silkworm rearing system 1 may include a transport device 41 that transports the first rearing container C1 between the egg transfer device 80 and the first rearing container storage area AR1. In the example shown in FIG. 13, the transport device 41 is a transport device separate from the first rearing container transport device 40. The transport device 41 can transport the first rearing container C1, for example, along the vertical direction (in other words, the Z direction) and the first horizontal direction (for example, the X direction). The transport device 41 includes, for example, a conveyor or a transport device equipped with a transfer device that transfers the first rearing container C1 to the shelf T1.

(Other components of the silkworm rearing system 1)
With reference to Figure 13, other components of the silkworm rearing system 1 will be described.

The silkworm rearing system 1 may include a monitoring computer 101. The monitoring computer 101 monitors the status of each device (10, 20, 30, 40, 41, 60, 70, 80, 92). If an abnormality is detected in any of the devices (10, 20, 30, 40, 41, 60, 70, 80, 92), the monitoring computer 101 notifies the operator of information identifying the device with the abnormality and information identifying the type of abnormality. Note that in the above embodiment, an example was described in which the control device 30 controls each of the devices (10, 20, 30, 40, 41, 60, 70, 80, 92). Alternatively, the monitoring computer 101 and the control device 30 may cooperate to control each of the devices (10, 20, 30, 40, 41, 60, 70, 80, 92).

The silkworm rearing system 1 may be equipped with a cocoon recovery device 103. The cocoon recovery device 103 is a device that recovers cocoons from the second rearing container C2 (e.g., a robot that recovers cocoons from the second rearing container C2).

The silkworm rearing system 1 may be equipped with a cleaning device 105 that cleans the first rearing container C1 and/or the second rearing container C2. The cleaning device 105, for example, blows air into the first rearing container C1 (or the second rearing container C2) to remove feces or residual food from the first rearing container C1 (or the second rearing container C2). The feces removed from the first rearing container C1 (or the second rearing container C2) may be collected for use as feed for other livestock or as an ingredient in medicine. When silkworms are reared in a sterile environment, the silkworm feces are also maintained in a sterile state. Therefore, the silkworm feces are suitable as feed for other livestock or as an ingredient in medicine.

In the above example, the cleaning device 105 is an air cleaning device that uses air. Alternatively, or additionally, the cleaning device 105 may be a device that sprays water or a disinfectant onto the first rearing container C1 (or the second rearing container C2) to remove droppings or leftover food from the first rearing container C1 (or the second rearing container C2).

The first rearing container C1 cleaned by the cleaning device 105 is reused for rearing silkworms in the first rearing container storage area AR1. The second rearing container C2 cleaned by the cleaning device 105 is reused for rearing silkworms in the second rearing container storage area AR2.

In the example shown in FIG. 13, the monitoring computer 101, cocoon recovery device 103, and cleaning device 105 are located within the first container 2A. Alternatively, at least one of the monitoring computer 101, cocoon recovery device 103, and cleaning device 105 may be located within the second container 2B. Alternatively, at least one of the monitoring computer 101, cocoon recovery device 103, and cleaning device 105 may be located outside the container 2.

(Silkworm rearing method)
Next, an example of a silkworm rearing method according to the second embodiment will be described with reference to FIGS.

In the first step ST1, multiple silkworms are reared in the first rearing container C1. The first step ST1 is the first silkworm rearing process.

In the first step ST1, first, in step ST101, silkworm food F is supplied to the first rearing container C1 (more specifically, the first region R1). Step ST101 is performed, for example, using the above-mentioned food supply device 60. More specifically, while the first nozzle 621 moves relative to the first rearing container C1 (more specifically, the first region R1), the first nozzle 621 ejects food F into the first rearing container C1 (more specifically, the first region R1).

In step ST102, a plurality of silkworm eggs E are transferred to the first rearing container C1. Step ST102 is performed, for example, using the egg transfer device 80 described above. More specifically, the transport device 41 transports the first rearing container C1 toward the egg transfer device 80, which then transfers the plurality of silkworm eggs E from the container C3 to the first rearing container C1. The number of silkworm eggs E placed in one first rearing container C1 is, for example, 10 to 1,000, 30 to 500, or 50 to 300. It is preferable that the first rearing container C1 be sterilized in advance with a disinfectant or the like before the plurality of silkworm eggs E are transferred thereto. Sterilized silkworm eggs E are transferred to the sterilized first rearing container C1, and the first rearing container C1 is placed in a sterile atmosphere AT, thereby maintaining the germ-free state of the silkworms reared in the first rearing container C1.

Step ST102 may be performed before or after step ST101. After steps ST101 and ST102 are performed, the first breeding container C1 is transported to the first breeding container storage area AR1 by the transport device 41.

Then, steps ST201 to ST205 described above are executed.

In step ST201, multiple silkworms A are raised in the first rearing container C1 (more specifically, in the first region R1). When a first partition member P1 is placed in the first rearing container C1, the first rearing period during which the silkworms are reared in the first region R1 defined by the first partition member P1 is several days (e.g., 5 days).

After the first rearing period has elapsed, the first rearing container C1 is transported from the first rearing container storage area AR1 to the food supply device 60. This transport is performed using, for example, a transport device 41.

In step ST202, silkworm food F is supplied to the first rearing container C1 (more specifically, the second region R2). Step ST202 is performed, for example, using the above-mentioned food supply device 60. More specifically, while the second nozzle 622 moves relative to the first rearing container C1 (more specifically, the second region R2), the second nozzle 622 ejects food F into the first rearing container C1 (more specifically, the second region R2).

In step ST203, the first partition member P1 is moved from the first position (partition position) to the second position (non-partition position). Step ST203 is performed, for example, using the partition member moving device 70 described above.

After step ST203 is performed, the first rearing container C1 is transported to the first rearing container storage area AR1 by a transport device 41 or the like. After step ST202 is performed (in other words, after the second feeding), the second rearing period during which silkworms are reared in the new first area Rn1 defined by the second partition member P2 is several days (e.g., 5 days).

After the second rearing period has elapsed, the first rearing container C1 is transported from the first rearing container storage area AR1 to the food supply device 60. This transport is performed using, for example, a transport device 41.

In step ST204, silkworm food F is supplied to the first rearing container C1 (more specifically, the new second region Rn2). Step ST204 is performed, for example, using the above-mentioned food supply device 60. More specifically, while the third nozzle 623 moves relative to the first rearing container C1 (more specifically, the second region Rn2), the third nozzle 623 ejects food F into the first rearing container C1 (more specifically, the second region Rn2).

In step ST205, the second partition member P2 is moved from the first position (partition position) to the second position (non-partition position). Step ST205 is performed, for example, using the partition member moving device 70 described above.

After step ST205 is performed, the first rearing container C1 is transported to the first rearing container storage area AR1 by a transport device 41 or the like. After step ST204 is performed (in other words, after the third feeding), the third rearing period during which silkworms are reared in the first rearing container C1 lasts for several days (e.g., five days).

In the above example, food F is supplied to one first rearing container C1 every few days, a total of three times. Alternatively, food may be supplied to one first rearing container C1 once, twice, or four or more times. If food F is supplied to the first rearing container C1 every few days, silkworms A can grow by eating fresh food. In contrast, if food F is supplied to the first rearing container C1 only once, there is a risk that the food F will deteriorate due to drying, etc.

The total period during which silkworms are reared in the first rearing container C1 (e.g., the sum of the first, second, and third rearing periods) is about 10 days (e.g., 15 days). In this case, silkworms grow from eggs to fourth-instar larvae in the first rearing container C1.

After the first step ST1 (first rearing process) is performed, in the second step ST2, multiple silkworms (e.g., multiple fourth-instar larvae) in the first rearing container C1 are transferred to the second rearing container C2. This transfer is performed using the silkworm transfer device 10.

In the second step ST2, the first rearing container C1 and the second rearing container C2 are first transported to the silkworm transfer area AR.

In the example shown in Figure 13, as shown by the dashed line B1, the first rearing container C1 is transported from the first rearing container storage area AR1 to the silkworm transfer area AR. The transport of the first rearing container C1 to the silkworm transfer area AR may be performed using multiple transport devices, including the first rearing container transport device 40. In the example shown in Figure 13, the first rearing container storage area AR1 is located within the first container 2A, and the silkworm transfer area AR is located within the second container 2B. Therefore, the first rearing container C1 is transported from the first container 2A to the second container 2B. The transport of the first rearing container C1 from the first container 2A to the second container 2B is performed through the container connection section 95.

In the example shown in Figure 13, as shown by dashed line B2, the second rearing container C2 is transported from the second rearing container storage area AR2 to the silkworm transfer area AR. The transport of the second rearing container C2 to the silkworm transfer area AR may be performed using multiple transport devices including the second rearing container transport device 20. In the example shown in Figure 13, the second rearing container transport device 20 is located within the second rearing container storage area AR2.

In the example shown in FIG. 13, the second rearing container storage area AR2 is located within the second container 2B, and the food supply device 60 is located within the first container 2A. In this case, to supply food F to the second rearing container C2, the second rearing container C2 is transported from the second rearing container storage area AR2 within the second container 2B to the food supply device 60 within the first container 2A. This transport is performed using multiple transport devices, including, for example, the second rearing container transport device 20 and the first rearing container transport device 40.

In the example shown in Figure 13, the silkworm transfer area AR is located within the second container 2B. Therefore, after food F is supplied to the rearing chamber SP of the second rearing container C2, the second rearing container C2 is transported from the first container 2A to the second container 2B (more specifically, the silkworm transfer area AR within the second container 2B).

After the first rearing container C1 and the second rearing container C2 are transported to the silkworm transfer area AR, the silkworm transfer device 10 transfers the silkworms A from the first rearing container C1 to the rearing chamber of the second rearing container C2. It is preferable that only one silkworm A is transferred to each rearing chamber of the second rearing container C2. By individually rearing the silkworms A, stress on the silkworms A is reduced.

In the example shown in Figure 14, multiple openings OP are formed at the first end Ca of the second rearing container C2. The multiple openings OP correspond to the entrances of multiple rearing chambers SP, respectively. The silkworm transfer device 10 transfers silkworms A to each rearing chamber SP through the openings OP. In the example shown in Figure 14, the openings OP are formed on the side of the second rearing container C2. After multiple silkworms are housed in the second rearing container C2, the multiple openings OP are covered with a cover member CL (see Figure 1, if necessary). It is preferable that an air hole is formed in the cover member CL. The cover member CL is a member that changes its state between a first state in which the multiple openings OP are open and a second state in which the multiple openings OP are closed by the cover member CL. Note that the first state means a state in which silkworms can be inserted into the rearing chamber SP through the openings OP, and the second state means a state in which silkworms cannot escape from the rearing chamber SP through the openings OP. It is preferable that one lid member CL be able to close multiple openings OP simultaneously. In this case, the lid member CL can efficiently close multiple openings OP.

Each rearing chamber SP is elongated, for example. More specifically, the depth of the rearing chamber SP is at least twice the height of the rearing chamber SP, and the depth of the rearing chamber SP is at least twice the width of the rearing chamber. When the rearing chamber SP is elongated, a relatively small space is required for individually rearing multiple silkworms. In the example shown in FIG. 14, the depth of each rearing chamber SP (in other words, the length from the first end Ca of the second rearing container C2 to the second end Cb) is, for example, 20 cm or more, 30 cm or more, or 40 cm or more. It is preferable that the longitudinal direction of the rearing chamber SP is approximately parallel to the horizontal plane (in other words, it is preferable that the angle between the longitudinal direction of the rearing chamber SP and the horizontal plane is 20 degrees or less). It is also preferable that the aforementioned opening OP is formed at the longitudinal end of the rearing chamber SP.

In the example shown in Figure 14, the second rearing container C2 has multiple rearing chambers SP. The number of rearing chambers SP included in the second rearing container C2 is, for example, 10 to 1,000, 30 to 500, or 50 to 300. It is preferable that a food support part PL for supporting food F is disposed within each rearing chamber SP. The food support part PL is formed, for example, from a mesh-like member (in other words, a net-like member). In this case, silkworm droppings fall below the food support part PL through the openings in the mesh-like member. Therefore, the rearing environment for the silkworms is less likely to deteriorate in the area above the food support part PL.

It is preferable that the food support portion PL extends in a direction from the first end Ca of the second rearing container C2 (in other words, the first longitudinal end of the second rearing container C2) to the second end Cb (in other words, the second longitudinal end of the second rearing container C2). It is also preferable that the food F placed on the food support portion PL extends in a direction from the first end Ca of the second rearing container C2 to the second end Cb.

In the example shown in Figure 14, each breeding room SP is formed by an independent cylindrical container CY, and a collection of these cylindrical containers CY constitutes at least a part of the second breeding container C2. The second breeding container C2 may be formed by surrounding multiple cylindrical containers CY with a housing member H. In this case, a first sterile atmosphere is provided by the cylindrical containers CY, a second sterile atmosphere is provided by the housing member H that houses the multiple cylindrical containers CY, and a third sterile atmosphere is provided by the second breeding container storage area AR2 (or a container 2 such as the second container 2B) that houses the second breeding container C2. This more reliably maintains a sterile state within the breeding room SP. Furthermore, by setting the degree of sterility in stages, a sterile state within the breeding room SP can be achieved efficiently and at low cost.

Alternatively, as shown in FIG. 15, each breeding room SP may be defined by a partition wall J disposed within a housing member H. In this case, a first sterile atmosphere is provided by the partition wall J, a second sterile atmosphere is provided by the housing member H that houses the partition wall J, and a third sterile atmosphere is provided by the second breeding container storage area AR2 (or a container 2 such as the second container 2B) that houses the second breeding container C2. This more reliably maintains a sterile state within the breeding room SP. Furthermore, by setting the degree of sterility in stages, a sterile state within the breeding room SP can be achieved efficiently and at low cost.

In the examples shown in Figures 14 and 15, the cross-sectional shape of the breeding room SP in a plane perpendicular to the longitudinal direction of the breeding room is rectangular. Alternatively, the cross-sectional shape of the breeding room SP in a plane perpendicular to the longitudinal direction of the breeding room may be hexagonal, octagonal, or any other polygonal shape. Still alternatively, the cross-sectional shape of the breeding room SP in a plane perpendicular to the longitudinal direction of the breeding room may be circular.

In the example shown in Figure 13, after multiple silkworms are transferred from the first rearing container C1 to the second rearing container C2, the second rearing container C2 is transported from the silkworm transfer area AR to the second rearing container storage area AR2. This transport is performed using a second rearing container transport device 20, etc. Furthermore, after multiple silkworms are transferred from the first rearing container C1 to the second rearing container C2, the first rearing container C1 is transported to the cleaning device 105. After being cleaned by the cleaning device 105, the first rearing container C1 is reused for mass rearing of silkworms.

In the third step ST3 (second rearing process), multiple silkworms are reared in the second rearing container C2. In the second silkworm rearing process, for example, multiple silkworms A are individually reared in separate rearing rooms SP. In the second silkworm rearing process, each silkworm grows from a fourth-instar larva to a fifth-instar larva, and the fifth-instar larvae then spin cocoons.

Before the fifth-instar larvae start to make cocoons, the air conditioning device 92 preferably supplies dry air to the first end Ca or the second end Cb of the second rearing container C2. Because fifth-instar larvae prefer dry air, supplying dry air to the first end Ca or the second end Cb of the second rearing container C2 causes the fifth-instar larvae to gather at the first end Ca or the second end Cb. In this case, it becomes easier to remove the cocoons from the first end Ca or the second end Cb (for example, it becomes easier for the cocoon recovery device 103, or more specifically, a robot, to remove the cocoons from the first end Ca or the second end Cb).

After the fifth-instar larvae have produced cocoons, the second rearing container C2 is transported from the second rearing container storage area AR2 to the cocoon recovery device 103. This transport is carried out using a transport device such as the second rearing container transport device 20.

In the example shown in Figure 13, the second rearing container storage area AR2 is located within the second container 2B, and the cocoon recovery device 103 is located within the first container 2A. Therefore, the second rearing container C2 is transported from the second container 2B to the first container 2A. In the example shown in Figure 13, the second rearing container C2 is transported within the first container 2A using the first rearing container transport device 40. After the cocoons are removed from the second rearing container C2, the second rearing container C2 is transported to the cleaning device 105. After being cleaned by the cleaning device 105, the second rearing container C2 is reused for individual rearing of silkworms.

In the silkworm rearing method of the second embodiment, rearing of relatively young silkworms and rearing of relatively old silkworms are carried out separately, allowing silkworms to be reared efficiently in a relatively small space. Furthermore, at least one of the following operations (preferably all of them) is performed automatically: transferring silkworms from the first rearing container C1 to the second rearing container C2, transporting the first rearing container C1 or the second rearing container C2, transferring silkworm eggs to the first rearing container C1, supplying food F to the first rearing container C1 or the second rearing container C2, cleaning the first rearing container C1 or the second rearing container C2, and recovering cocoons from the second rearing container C2. This improves silkworm rearing efficiency and reduces the risk of bacteria being introduced into the silkworm rearing environment.

When the first rearing container C1 and/or the second rearing container C2 are washed and reused, silkworm rearing can be repeatedly carried out without refilling the first rearing container C1 and/or the second rearing container C2 from outside the sterile atmosphere into the sterile atmosphere (e.g., inside container 2). This reduces the risk of germs entering the sterile atmosphere AT. Cocoons collected by the cocoon collection device 103 may be removed through the door DR (see FIG. 4, if necessary) of container 2 (more specifically, first container 2A). Food F and/or silkworm eggs E may be replenished through the door DR of container 2 (more specifically, first container 2A). It is preferable that the door DR be a double door to prevent germs from entering container 2.

(Silkworm transfer device 10)
Referring to Figure 17, an example of a silkworm transfer device 10 that can be employed in the silkworm rearing system 1 in the embodiment will be described.

In the example shown in Figure 17, the silkworm transfer device 10 has a holding member moving device 12 (more specifically, an arm unit) and a gripping unit 110. The holding member moving device 12 is, for example, a robot arm including one or more joints. The gripping unit 110 has a plurality of gripping pieces 111 including, for example, a first gripping piece 111a and a second gripping piece 111b. The number of gripping pieces 111 included in the gripping unit 110 may be two, or may be three or more.

The contact portion 112 of the gripping piece 111 that comes into contact with the silkworm is preferably made of an elastically deformable material (elastic material). The contact portion 112 is formed, for example, from silicone rubber. By forming the contact portion 112 from an elastic material (for example, silicone rubber), it becomes possible to appropriately grip the shape-changing, moving silkworm.

The gripping piece 111 may be, for example, a gripping piece having an internal space IS surrounded by an elastic material. In this case, the gripping piece 111 can be driven by supplying a fluid such as air into the internal space IS. In the example shown in Figure 17, each gripping piece 111 has a fluid supply path PH that supplies fluid to the internal space IS.

The present invention is not limited to the above-described embodiments, and it is clear that each embodiment can be modified or changed as appropriate within the scope of the technical concept of the present invention. Furthermore, the various techniques used in each embodiment or modification can be applied to other embodiments or modifications as long as no technical contradictions arise. Furthermore, optional additional configurations in each embodiment or modification can be omitted as appropriate. For example, each component included in the second embodiment can also be used in the first embodiment.

In the second embodiment, an example was described in which multiple silkworms were raised using multiple containers (2A, 2B). However, in the second embodiment, multiple silkworms may also be raised using a single container 2. Also, in the second embodiment, multiple silkworms may also be raised in a sterile environment set up independently of the container.

In the second embodiment, an example was described in which the silkworm transfer device 10 and the second rearing container transport device 20 are placed inside the second container 2B. Alternatively, the silkworm transfer device 10 or the second rearing container transport device 20 may be placed inside the first container 2A. Further alternatively, the silkworm transfer device 10 or the second rearing container transport device 20 may be placed in a sterile environment unrelated to the container.

Furthermore, in the second embodiment, an example was described in which the first rearing container transport device 40, food supply device 60, partition member moving device 70, and egg transfer device 80 are arranged within the first container 2A. Alternatively, the first rearing container transport device 40, food supply device 60, partition member moving device 70, or egg transfer device 80 may be arranged within the second container 2B. Still alternatively, the first rearing container transport device 40, food supply device 60, partition member moving device 70, or egg transfer device 80 may be arranged in a sterile environment unrelated to the container.

In the second embodiment, an example was described in which the silkworms transferred from the first rearing container C1 to the second rearing container C2 were fourth-instar larvae. Alternatively, the silkworms transferred from the first rearing container C1 to the second rearing container C2 may be fifth-instar larvae, for example. Furthermore, when fifth-instar larvae silkworms (more specifically, silkworms immediately before producing cocoons) are transferred to the second rearing container C2, placing food in the second rearing container C2 may be omitted. In this case, there is no need to transport the second rearing container C2 toward the food supply device 60. Furthermore, when no food is placed in the second rearing container C2, the "food support portion PL" in the description of the above embodiment can be read as a "support portion." A "support portion" is a support portion capable of supporting silkworms.

In the example shown in Figures 14 and 15, an OP through which silkworms can pass is arranged at the first end Ca (first end surface) of the second rearing container C2. Additionally, an opening through which silkworms can pass may be arranged at the second end Cb (second end surface) of the second rearing container C2.

[Embodiment 3]
An automatic sericulture system, an automatic sericulture method, a program, and a storage medium according to the third embodiment will be described with reference to FIGS.

[Silkworm growth]
Eggs hatch in about 3 days at temperatures above 30 degrees. Count the number of days from hatching. Larvae: Young silkworms.
First molt
2nd instar 3rd instar 4th instar 3rd to 5th instars are raised in groups. Up to 1 million heads can be raised.

For example, on the 15th day, when the silkworms are less active before they molt from the third to fourth instar, a picking robot is used to remove them from the group rearing container and move them to individual rearing containers. Alternatively, they can be reared in individual rearing containers from the egg stage. Silkworms can be moved from the group rearing container to individual rearing containers at any stage: egg, young silkworm, first to fifth instar, or mature silkworm.

Because individual rearing containers are made of stainless steel and are expensive to manufacture, it is desirable to use them as frequently as possible. To achieve this, it is advantageous to rear the silkworms in groups until they reach maturity, and then move them to individual rearing containers once they reach maturity. For example, the silkworms may be reared in group rearing containers until they reach maturity on the 25th day, and then moved to individual rearing containers when they are ready to start spinning silk. In this case, the readiness to start spinning can be determined by detecting the following characteristics:
- Poops and urinates a lot.
-Body color changes from white to yellowish transparent.
・Lift your head.

5th stage: Mature silkworms continue to eat for 10 days, then urinate and excrete large amounts of feces, changing from white to yellow (transparent). Cocoons begin to spin from the 25th day, and are removed on the 28th day, about 3 days after they start making cocoons. The number of days is a guide, so the timing can be roughly determined, but you can also adjust the timing of removing the cocoons by sensing. Sensing can be done about once an hour.
Light is shone on it and the sensor is used to observe it. Once the cocoon is complete, the silkworm stops moving inside the cocoon.
An X-ray camera or an infrared camera may also be used.

When eggs are collected, they are raised until the adult silkworm moths break out of the cocoons and emerge.
A single female lays about 200 eggs.

[About feed]
Dried mulberry leaves are powdered (one-third the weight of fresh leaves)
The fineness is about 80μm to 100μm. It takes time to dry. The moisture content of the leaves is 60% in winter and 70% in summer.
70% - 60% → 30% Heat pump dryer 6 hours → 3 days to 3% 30% → 3% Vacuum + microwave + stirring 20 minutes Make a bavarois-like kamaboko-shaped block from the dried powder The softness varies depending on the ingredients and ratio, ranging from roughly the consistency of mayonnaise to the hardness of udon noodles.
Alternatively, the product may be dried from start to finish using a heat pump dryer.
When the mixed feed is poured into the hopper, it is squeezed out by the pump, and the feed of the desired thickness can be provided in the designated location of the rearing container. The thickness and mixing ratio can be changed according to the growth of the silkworms. The feed mixture and thickness adjustment are also automated.

- Dried mulberry leaf powder (sterilized)
- Secondary feed Defatted soybeans Dried soybean pulp from the soy sauce and tofu manufacturing process (edible and sterilized). Amino acids and protein are necessary.
- Moisture (use sterilized or sterile water)
Mix the above three ingredients and form them into a soft, bavarois-like kamaboko shape.

Ratio Mulberry powder 3g (10%)
Sub-feed 6g Water 21g Total 30g High temperature drying → Nutrients are lost. Supplementary additives must be added.
Low-temperature drying: Nutrients are less likely to be lost, so supplementary additives may not be necessary. For example, the ingredient called hydroxylia, which stimulates the appetite of 1st to 3rd instar silkworms, is not lost.
- Drying in an oven (an oven used to process the silkworms inside the cocoons) is done at around 80°C.
The heat pump method dries at around 50 to 60 degrees Celsius.
Drying using vacuum + microwave is around 40°C.
Alternatively, drying and pulverization may be carried out, such as freeze-drying.

Feed is automatically supplied to the mass rearing container by a feed supply means. The thickness and composition of the feed can be adjusted according to the growth of the silkworms. In the mass rearing container, the location where feed is supplied is changed according to the growth of the silkworms. For example, when feed is replenished on the fifth day, feed of a predetermined composition ratio and size (thickness) is supplied to a location adjacent to the location where the eggs and initial feed are supplied. When feed is replenished on the tenth day, feed of a predetermined composition ratio and size (thickness) is supplied to a location adjacent to the location of the feed placed on the fifth day. When feed is replenished on the fifteenth day, feed of a predetermined composition ratio and size (thickness) is supplied to a location adjacent to the location of the feed placed on the tenth day. In this way, by shifting the location where the feed is supplied, the silkworms' position can be guided to where the feed is, and feces can be prevented from accumulating only in the location of a specific feed.

[Silkworm transportation method]
Picking robot Soft robotics, suction cup and hand Example 1) A third-instar silkworm, about 3cm long, is picked up by a vacuum suction cup at the end of the robot arm.
Example 2) Gripping with a soft air-powered hand. Soft material made of adhesive silicone.
Example 3) Hold with a soft air-powered hand and suck up with a vacuum cup.
The hand that picks up the cocoons is air-driven and has a soft grip. The hand that picks up the silkworms and the hand that picks up the cocoons can be automatically switched.

The silkworm pick-up position 212 is a rotating table, so the group rearing container can be rotated while the picking robot picks the silkworms. For example, the position of the silkworms is determined by two-dimensional image recognition using a monocular camera. The position of the cocoon is also determined by two-dimensional image recognition using the monocular camera, and the cocoon is then removed using a cocoon picking hand. One camera is installed at the silkworm pick position, and another camera is installed at the cocoon pick position. However, it is also possible to perform three-dimensional image recognition using a two-axis camera (stereo camera). At position 213, where silkworms are moved to individual rearing containers or cocoons are removed from them, the individual rearing containers can be raised and lowered by a lifter. The movement of silkworms to individual rearing containers and the removal of cocoons from them occur at the same position 213.

Figure 26 is a photograph of the cameras. The cameras are installed above the picking robot, for example, one camera at the silkworm picking position and another at the cocoon picking position. Lighting means are installed near the cameras to illuminate the shooting range.

[Egg supply means]
Egg sorting Healthy eggs sink in the water, while dead eggs float Healthy eggs are removed using a dropper, using a robot Eggs are placed into a V-groove disinfectant tank. Healthy eggs sink to the bottom of the V-groove. Eggs that have sunk to the bottom are sucked out using suction means (multiple dropper-shaped suction means in a row) and placed in a designated location in the group rearing container. The eggs are arranged in multiple rows, for example, six rows. Food is also supplied in multiple rows parallel to the egg arrangement, between the rows of eggs.
For example, Osban Liquid (registered trademark) can be used as a disinfectant. Dilute the original solution to about 1%. Ozone water can also be used. Disinfect the surface of the eggs.

[An example of a sericulture system using a container]
Although not particularly limited, the automatic sericulture system of this embodiment can also be housed in two containers.
Container 1: Work space Container 2: Breeding room
A conveyor connecting the two
It is possible to raise around 20,000 silkworms.
If the scale is expanded, it will be possible to raise silkworms in the millions.

Work in the first container: Sorting eggs, preparing group rearing containers, preparing individual rearing containers, adding food, picking up silkworms, and moving them from the group rearing container to the individual rearing container.
It is also possible to use multiple picking robots. For example, multiple picking robots can be placed around a circular or other circular conveyor (on the inner or outer periphery) and use image recognition by a camera to pick up only the mature silkworms.

Second container A plurality of rearing shelves for storing individual rearing containers and group rearing containers. Figures 29 to 31 show the rearing shelves and automatic rearing container storage means arranged in the second container.
Figure 29 is a photograph of the rearing shelf.
Figure 30 is a photograph of the rails of the automatic rearing container storage means.
Figure 31 is a photograph of the automatic rearing container storage means. The automatic rearing container storage means is provided with a lifting means and a means for storing and removing rearing containers from the rearing shelf.

[Germ-free rearing]
Characteristics: Completely sterile. Humidity 70%, prevents food from drying out. 20-25°C, the temperature preferred by silkworms. Sterile. Food does not spoil = healthy silkworms. Disinfection of the outside of the eggs. Eggs are placed in a V-groove disinfectant tank and only those that sink to the bottom are removed.
- Provide sterile feed.
- The breeding environment must be sterilized or sterile. It must be a clean room with an air purifier that uses a HEPA filter. Dust particles of 1 micron size must be removed.

Egg care: Eggs will hatch in about 3 days at temperatures above 30 degrees. When purchasing from a dealer, specify the expected hatching date.
Variety and quantity

Mixing Kurafen water into feed can increase the tensile strength of the thread by about 1.5 times.

[Breeding method]
Feeding every 5 days Eggs + food → (after 5 days) Feeding → (after 5 days) Feeding → (after 5 days, total 15 days, immobile period before molting from 3rd to 4th instar) 3rd instar silkworms about 3cm in size are transferred to a tube using a picking robot (a vacuum-drawn suction cup), the tube is filled with 20g of food → (25th day) They start to spit out silk and make cocoons → (3 days later, total 28th day) The cocoons are removed using a picking hand

[Cleaning process]
The droppings are used as herbal medicine, and the feces fall through the gaps in the wire mesh and accumulate at the bottom. → Only the droppings are collected.
The molted shells and leftover food remain on the wire mesh and can be separated.
Group cages, individual cages, and separators are cleaned after use. This cleaning can be automated, for example, by using a water jet in a cleaning tank.

It is possible to automate all of the following: full automation, collection of collected cocoons, collection of collected feces, collection of collected residues (leftover food, molted material), replenishment of feed, and replenishment of eggs. However, any of these may be done manually.
A fully automated sericulture system can be realized.
The egg supply means, feed supply means, silkworm transfer means, cocoon removal means, rearing container automatic storage means, and rearing container transfer means are all automated. Without human intervention, sterilization is easier and stress on the silkworms is reduced.
In traditional sericulture, it was very difficult to synchronize the timing of putting the silkworms into the sieve and the time when they would be raised. In this embodiment, the time when they would be raised is analyzed by sensing, and variable work can be performed depending on the analysis results. Monitoring (sensors), data analysis and decision-making (using AI), variable work depending on the analysis results (automated by robots).
When the 3rd to 5th instars are transferred to individual rearing containers, there is no need to manage the time when the cocoons emerge. The time to remove the cocoons can be determined by the number of days or by sensing.
When selecting and picking up only mature silkworms, since there are slow-growing silkworms even in the same group rearing container, it is advisable to provide a group rearing container stocker near the picking position where group rearing containers can be temporarily stored so that the picking operation timing can be adjusted.
By using IoT technology, it is possible to monitor the state of silkworm cultivation and optimize the timing of work according to growth. For example, the state of silkworms or cocoons can be monitored using cameras, for example, every hour.

[Individual breeding container]
The breeding space is arranged in a matrix, for example, 5 rows x 10 columns.
One breeding space is divided into two rooms by a partition member.
To remove the cocoons, push the partition members one by one halfway lengthwise on a workbench.
For example, the tube is 5 columns long and 10 columns wide, with a partition in the middle and a net at the bottom, allowing the droppings to collect under the net. The middle partition is surrounded by a sponge, and by moving the partition halfway, the droppings inside can be scraped out. The initial cleaning is completed at the same time as removing the cocoons.
Removable lids (translucent) are provided on both sides.

[Group breeding container]
The group rearing container is a roughly rectangular container with a bottom, and has a moisture supply means in the center to prevent drying. See the roughly rectangular container at the bottom center of Figure 22. The moisture supply means can be a sponge soaked in water, or water can be placed directly in the container as the moisture supply means. A removable lid (translucent) is provided on the top of the group rearing container.

[Partition member]
Figure 23 is a photograph of a partition member. The partition member 240 is inserted into the rearing space of the individual rearing container. The partition member 240 has a partition portion 241 and a flat portion 243. The partition portion 241 divides the rearing space into two spaces. The flat portion 243 serves as a floor for rearing silkworms or cocoons. The flat portion 243 has multiple holes, and silkworm droppings fall through the holes and accumulate between the bottom of the rearing space and the lower part of the flat portion 243. An elastic member 242 made of, for example, a sponge is provided around the periphery of the partition portion 241. The elastic member 242 corresponds to the shape and dimensions of the inner wall of the rearing space. Convex portions 246 that are convex on the upper surface side are provided at both ends of the flat portion 243.

Figure 24 shows the partition member 240 being pushed out of the rearing space by half its length using the partition member moving means 220. When the partition member 240 is pushed out halfway from the rearing space in this manner, the elastic member 242 slides against the inner wall of the rearing space, allowing the feces and other residues in the storage space to be separated and removed. Figure 25 is a photograph of the removal of cocoons from individual rearing containers. Figure 25 is a reference photograph that differs from the actual installation position, and therefore differs from the actual arrangement. The position for removing cocoons is when the partition member 240 is pushed out halfway from the rearing space, and the partition member storage section is in contact with the individual rearing containers, with the protruding side of the partition member 240 fitted into the partition member storage section. In this state, the feces are scraped out by the elastic member 242 and collected in the feces collection container. On the other hand, residue other than feces, such as uneaten food and molted skin, remains on the flat surface 243, making it possible to separate and remove the feces and other residue.

To return the partition member 240 from the position shown in Figure 24 back into the rearing space, the claws on the partition member moving means 220 engage with the protrusions 246. The individual rearing containers are placed on a lifter, so their height can be adjusted. The individual rearing containers have, for example, 5 tiers and 10 rows, for a total of 50 rearing spaces. Each tier has 10 rearing spaces, and the partition members 240 inserted into the 10 storage spaces on each tier can be moved simultaneously by the 10 arms of the partition member moving means 220. The claws on the partition member moving means 220 engage and disengage with the protrusions 246 by adjusting the height of the lifter. By rotating the individual rearing container 180 degrees, the partition member 240 can be pushed out halfway from the rearing space from both sides of 212 on the opposite side, and the partition member 240 can also be pushed out of the rearing space from the opposite side.

[Embodiment 4]
In this embodiment, a method will be described in which, unlike in the third embodiment, a picking robot is not used when transferring animals from a group rearing container to an individual rearing container.

From the second instar (about 20mm), they are moved into a mabushi (several boxes about 50mm x 50mm separated by dividers). In other words, they are moved from group rearing to individual rearing.

Example 1
Using a conical tool such as a funnel (funnel 310), the silkworms are placed one by one into the upper brood chamber container 300. If it is not possible to fit one silkworm into each box 301, for example, if two silkworms are placed in one box, or if an empty box occurs, a pick robot is used to move the silkworms so that each box contains one silkworm.

Cocoons can be harvested in about three days, making it possible to produce cocoons 120 times a year. This reduces the number of days the rearing equipment needs to be used.

Figure 33 shows a modified funnel 310A. A first valve 311 is provided above the extraction port of the funnel 301A, a second valve 312 is provided below the extraction port, and a valve chamber 313 is provided between the first and second valves. When the first valve 311 is opened and, for example, one silkworm moves into the first valve chamber, the first valve 311 is immediately closed, causing the single silkworm to move into the valve chamber 313. Next, when the second valve 312 is opened, one silkworm is extracted from the valve chamber through the funnel 310 into one of the boxes 301. This allows one silkworm to be stored in each box 301. If a sensor is provided in the valve chamber 313, the first valve 311 and second valve 312 can be controlled in response to the detection of the silkworm by the sensor. This allows the silkworms to be moved one by one into the valve chamber 313, ensuring that they are extracted from the funnel one by one.

Example 2
An individual transfer box 330, which is divided into multiple boxes 331, is placed on top of the group rearing container 320. The inner dimensions of the group rearing container 320 are approximately the same as the outer dimensions of the individual transfer box 330. Since silkworms have the habit of climbing to higher places and keeping their distance from other silkworms, one silkworm will enter each box of the box member on its own.

(Modification 2-1 of Example 2)
Instead of the grid-shaped box members, for example, a plurality of stacked wave-shaped partition members are used, i.e., a wave-shaped individual moving box 333 provided with a plurality of wave-shaped boxes 333. Since it is easier to manufacture the partition members by stacking them than to manufacture the box members, the device becomes less expensive. The partition members are not limited to wave-shaped, and may be, for example, continuous rectangles.

(Modification 2-2 of Example 2)
Instead of a grid-shaped cage member, silkworms can be raised using wire mesh-type individual moving cages 336, which are made by bending wire mesh 335 into a continuous wave shape. Mature silkworms have the habit of making cocoons in three-dimensional spaces. By utilizing this habit, the silkworms recognize the three-dimensional space between the wire meshes formed in the wire mesh-type individual moving cage 336 as a three-dimensional shape and make their cocoons in this space.

(Modification 2-3 of Example 2)
By utilizing the habit of silkworms to gather in places where there is food, the silkworms are dispersed throughout the mass rearing container 320 by distributing paste-like food, and thereby when an individual transfer box 330 is placed over the container, the silkworms can be guided to move one by one to the box 331.

Figure 37A (left) shows how small silkworms that have just hatched from eggs are raised in the first partition 321. Food 325 is dispersed within the first partition 321. The silkworms gather around the dispersed food, which results in the silkworms being dispersed and raised.

Figure 37B (center diagram) is an explanatory diagram of the case where, when the silkworms grow large, the first partition 321 is removed and they are reared in the second partition 322. Food is evenly distributed in the second partition, and the silkworms gather around this food, resulting in the silkworms being reared in a dispersed manner within the second partition 322.

In Figure 37C (right), when the silkworms grow even larger, the second partition 322 is removed and the silkworms are reared in the entire mass rearing container 320. Paste-like food is evenly distributed within the mass rearing container 320. The silkworms gather around the food, and as a result, the silkworms are distributed approximately evenly within the mass rearing container 320. When the silkworms reach maturity in this state, an individual transfer box 330 is placed over the mass rearing container 320, making it possible to guide the approximately evenly distributed mature silkworms one by one into boxes 331.

Example 3
When reared in a group rearing container 320, in addition to the silkworms, residues such as silkworm feces and leftover food accumulate within the group rearing container 320. It is desirable to remove only the mature silkworms for topping, but if one attempts to remove the mature silkworms directly from the container, the residue inevitably comes out as well. Therefore, by using a vacuum suction nozzle with an output that allows the silkworms to remain standing in the group rearing container 320 on their own, it becomes possible to suck out only the residues within the group rearing container 320 and remove only the mature silkworms en masse. Once only the mature silkworms are removed, it becomes possible to throw the silkworms en masse into the funnel 310 of the embodiment shown in Figure 32. Furthermore, even without using the funnel 310, because silkworms have the tendency to keep a distance from each other, simply scattering the mature silkworms on top of the top rearing container 300 allows the silkworms to enter each box 301 one by one and begin making cocoons there.

The above describes the automatic sericulture system, automatic sericulture method, program, and storage medium according to embodiments of the present invention. However, these embodiments are provided as examples to explain the automatic sericulture system, automatic sericulture method, program, and storage medium that embody the technical concepts of the present invention, and are not intended to limit the present invention to these exemplary embodiments. The present invention is equally applicable to combinations of the various embodiments, examples, or variations, as well as to those that incorporate various modifications.

1, 1A, 1B Silkworm rearing system 2 Container 2A First container 2B Second container 10 Silkworm transfer device 11 Silkworm holding member 11a First gripping portion 11b Second gripping portion 11c Vacuum suction portion 12 Holding member moving device 13 Camera 20 Second rearing container transport device 30 Control device 40 First rearing container transport device 41 Transport device 60 Feed supply device 61 Feed storage container 62, 62-1 Nozzle member 62-2 Second nozzle member 62h Opening 63, 63-1 Moving device 63-2 Second moving device 64 Feed supply pipe 64d First branch pipe 64e Second branch pipe 64m Main pipe 64r Return pipe 65 Feed supply pump 67 Water supply pipe 70 Partition member moving device 71 Partition member holding portion 71a First gripping portion 71b Second gripping portion 71c Hook portion 72 Holding unit moving device 80, egg transfer device 81, suction pipe 82, piping 83, on-off valve 84, vacuum pump 86, suction pipe moving device 91, heat insulating material 92, air conditioning device 92a, air supply port 95, container connection unit 101, monitoring computer 103, cocoon recovery device 105, cleaning device 110, gripping unit 111, gripping piece 111a, first gripping piece 111b, second gripping piece 112, contact unit 201, automatic sericulture system 202, first container 203, second container 210, robot arm 211, egg or feed supply position 212, silkworm pick-up position (rotary table)
213 Position for transferring silkworms to individual rearing containers or removing cocoons from individual rearing containers (liftable)
214 Connecting conveyor 215 Rearing container automatic storage means 216 Rearing shelf 220 Partition member moving means (push, pull (hook claws on the convex part of the partition member and pull))
230 Rail of automatic rearing container storing means 240 Partition member 241 Partition portion 242 Elastic member 243 Flat portion 244 Hole 245 Flange portion 246 Convex portion 300 Upper brood chamber container 301 Container 310 Funnel 311 First shutter 312 Second shutter 320 Group rearing container 321 First partition 322 Second partition 325 Food 330 Individual moving container 331 Container 332 Corrugated individual moving container 333 Corrugated container 335 Wire mesh 336 Wire mesh type individual moving container 611 Agitator 620 Switching valve 621 First nozzle 622 Second nozzle 623 Third nozzle 630 Robot arm 641, 643, 645 Opening and closing valve 651 Rotating shaft 652 Blade member 671 Opening and closing valve 672 Filter 921 Fan 922 Heat exchanger 923 Filter 924 Filter A Silkworm AR Silkworm transfer area AR1 First rearing container storage area AR2 Second rearing container storage area AT Sterile atmosphere C1 First rearing container C2 Second rearing container C3 Container CL Lid member CY Cylindrical container Ca First end Cb Second end D1 Branching portion D2 Branching portion DR Door DR1 First door DR2 Second door E, E1, E2 Silkworm eggs F Feed F1 Mulberry leaf F2 Okara H Housing member IS Internal space J Partition wall M Feces M1, M2 Motor OP Opening P Partition member P1 First partition member P2 Second partition member PH Fluid supply path PL Feed support portion Pa Engagement portion R1 First region R2 Second region Rn1 First region Rn2 Second region SP Rearing chamber SP1 First breeding room SP2 Second breeding room T1 Shelf T2 Shelf Wa Outer wall Ws Inner surface

Claims (4)

a silkworm transfer device for transferring silkworms from the first rearing container to the second rearing container;
a first rearing container transport device that transports the first rearing container to a silkworm transfer area;
a second rearing container transport device separate from the first rearing container transport device for transporting the second rearing container;
a first container having a first rearing container storage area;
a heat insulating material disposed along the inner surface of the outer wall of the first container;
an air conditioner for adjusting the temperature inside the first container;
Equipped with
The pressure inside the first container is greater than the pressure outside the first container.
Silkworm rearing system. 2. The silkworm rearing system according to claim 1 , wherein the pressure inside the first container is 10 Pa or more higher than the pressure outside the first container . a second container having a second rearing container storage area;
The silkworm rearing system according to claim 1 , wherein the second container is a container separate from the first container. 2. The silkworm rearing system according to claim 1 , wherein the pressure inside the second container is higher than the pressure outside the second container .