WO2019008723A1 - Control system and control method - Google Patents

Abstract

The problem addressed by the present invention is to allow an air conditioning system to easily regulate and with a simple control the temperature of a space provided. A control system (10) comprises a control unit (11) and an acquisition unit (12). The control unit (11) controls an air conditioning system (2) disposed in an installation. The acquisition unit (12) acquires the temperature of a space subjected to an air conditioning by the air conditioning system (2). The control unit (11) controls the air conditioning system (2) to switch between an operating state in which the air conditioning system (2) is operating and a stopped state in which the air conditioning system (2) is stopped. depending on the temperature acquired by the acquisition unit (12).

Description

Control system and control method

The present disclosure relates generally to control systems and methods, and more particularly to control systems and methods for controlling an air conditioning system.

Conventionally, an air conditioner that performs heating using gas, oil, electricity, or the like as a heat source is known, and is disclosed, for example, in Patent Document 1. The air conditioner described in Patent Document 1 includes a temperature detector that detects a room temperature, a combustion amount calculation unit that determines a combustion amount, and a combustion amount output unit. In this air conditioning apparatus, strong combustion, weak combustion, or combustion stop is performed by the calculation of the signal from the temperature detector and the set temperature.

However, in the air conditioner (air conditioning system) described in Patent Document 1, there is a problem that complex control is required to adjust the temperature of the target space targeted by the air conditioner.

Japanese Patent Application Laid-Open No. 62-108944

This indication is made in view of the above-mentioned point, and aims at providing a control system and control method which are easy to adjust temperature of object space which an air-conditioning system makes object by simple control.

A control system according to an aspect of the present disclosure includes a control unit and an acquisition unit. The control unit controls an air conditioning system provided in a facility. The acquisition unit acquires a temperature of a target space targeted by the air conditioning system. The control unit controls the air conditioning system to switch between an operation state in which the air conditioning system operates and a stop state in which the air conditioning system is stopped, according to the temperature acquired by the acquisition unit.

A control method according to an aspect of the present disclosure includes an acquisition step and a switching step. The acquisition step is a step of acquiring a temperature of a target space targeted by an air conditioning system provided in a facility. The switching step is a step of controlling the air conditioning system so as to switch between an operating state in which the air conditioning system operates and a stopped state in which the air conditioning system is stopped according to the temperature acquired in the acquiring step.

FIG. 1 is a block diagram showing a configuration of a control system according to an embodiment of the present disclosure. FIG. 2 is a schematic view of an air conditioning system controlled by the control system of the same. FIG. 3A is a diagram showing a first setting screen displayed on a terminal used in the control system of the same. FIG. 3B is a diagram showing a second setting screen displayed on the terminal used in the control system of the same. FIG. 4 is an explanatory view of control by the control system of the same. FIG. 5 is an explanatory diagram of control by the control system according to a first modification of the embodiment of the present disclosure. FIG. 6 is an explanatory diagram of control by a control system according to a second modification of the embodiment of the present disclosure. FIG. 7 is an explanatory diagram of control by a control system according to a third modification of the embodiment of the present disclosure. FIG. 8 is an explanatory diagram of control by a control system according to a fifth modification of the embodiment of the present disclosure.

(1) Overview Hereinafter, an overview of the control system 10 according to the embodiment will be described with reference to FIGS. 1 and 2. Arrows in the air conditioning system 2, the air supply duct 7, and the return air duct 8 shown in FIG. 2 indicate the flow of air. The control system 10 of the present embodiment is a system for controlling the air conditioning system 2 provided in a facility. The facility is, for example, a building having one or more closed spaces, such as an office building, a hotel, a school, a hospital, a commercial facility, a factory, and a theater. The air conditioning system 2 mainly adjusts the temperature of the target space A1 to be targeted among the one or more closed spaces. In the present embodiment, the air conditioning system 2 is, for example, an AHU (Air Handling Unit). The target space A1 is, for example, one of a plurality of floors when the facility is a multi-storey office building. The target space A1 may be, for example, one space such as a large room, or a plurality of spaces consisting of a plurality of rooms. Further, the target space A1 may be managed by the owner of the facility, or may be managed by a business owner (tenant) who has been borrowed from the owner of the facility.

The control system 10 includes a control unit 11 and an acquisition unit 12. The control unit 11 controls the air conditioning system 2. In the present embodiment, the control unit 11 performs control of switching the air conditioning system 2 between the operating state and the stopped state by opening and closing a power feeding path from the power source B1 to the air conditioning system 2. The operating state is a state in which the air conditioning system 2 is operating. In the stopped state, the air conditioning system 2 is stopped. The acquisition unit 12 acquires the temperature of the target space A1 targeted by the air conditioning system 2. In the present embodiment, the acquisition unit 12 acquires the temperature of the target space A1 from the sensor 4 provided in the target space A1.

Then, the control unit 11 controls the air conditioning system 2 to switch between the operation state and the stop state according to the temperature acquired by the acquisition unit 12 (hereinafter referred to as “acquired temperature”). For example, when the air conditioning system 2 is cooling, the control unit 11 switches to the operating state when the temperature acquired by the acquiring unit 12 exceeds the predetermined temperature, and switches to the stopped state when the temperature is lower than the predetermined temperature. Control. Thus, the control system 10 adjusts the temperature of the target space A1.

As described above, in the present embodiment, the temperature of the target space A1 is adjusted by the control of switching between the operating state and the stop state. That is, in the present embodiment, the air conditioning system 2 is controlled by a simple control as compared with the control in which the air conditioning system 2 adjusts the temperature of the air sent to the target space A1. Therefore, the present embodiment is advantageous in that the temperature of the target space A1 targeted by the air conditioning system 2 can be easily adjusted by simple control.

(2) Details Hereinafter, the control system 10 according to the present embodiment will be described in detail with reference to FIGS. 1 and 2. As shown in FIG. 1, the control system 10 of the present embodiment individually controls one or more (three in FIG. 1) air conditioning systems 2. In the present embodiment, one or more air conditioning systems 2 are individually controlled by a main system 6 (described later) in addition to the control system 10. In addition to the control unit 11 and the acquisition unit 12 described above, the control system 10 of the present embodiment further includes a communication unit 13. The following description focuses on any one air conditioning system 2 unless otherwise noted.

The control unit 11 controls the air conditioning system 2. In the present embodiment, the control unit 11 indirectly controls the air conditioning system 2 by turning on / off the relay 3 provided in the power feeding path from the external power supply B1 to the air conditioning system 2. In the present embodiment, the control unit 11 is configured by a microcomputer whose main configuration is a processor and a memory. That is, the control unit 11 is realized by a computer system having a processor and a memory, and when the processor executes an appropriate program, the computer system functions as the control unit 11. The program may be pre-recorded in a memory, or may be provided by being recorded in a recording medium such as a memory card through a telecommunication line such as the Internet.

The control unit 11 has a function of executing comparison processing and a function of executing switching processing. In the comparison process, the control unit 11 compares the acquired temperature with the first threshold C1 and the second threshold C2 stored in advance in the memory. The first threshold C1 and the second threshold C2 are temperatures set by the terminal 5 as described later. The first threshold C1 is the upper limit value of the temperature range centered on the target temperature C3. The second threshold C2 is the lower limit value of the temperature range centered on the target temperature C3. That is, the second threshold C2 is smaller than the first threshold C1. The target temperature C3 is, similarly to the first threshold C1 and the second threshold C2, a temperature set by the terminal 5, and a target space desired by a user operating the terminal 5 (for example, a manager of the target space A1). It is the temperature of A1.

The control unit 11 executes the switching process according to the result of the comparison process. That is, in the switching process, the control unit 11 switches the air conditioning system 2 to switch the operation state in which the air conditioning system 2 operates and the stop state in which the air conditioning system 2 is stopped according to the temperature acquired by the acquiring unit 12. Control. Control of the air conditioning system 2 by the control unit 11 will be described in detail in "(3) Control" described later.

In addition, the control unit 11 has a time function of acquiring the current time and a time counting function of measuring time in order to execute control such as automatic control based on a schedule set in the terminal 5 described later. ing. In the present embodiment, the control unit 11 realizes a time function by the built-in clock and a clock function by the built-in timer.

The acquisition unit 12 acquires the temperature of the target space A1 targeted by the air conditioning system 2. In the present embodiment, one or more (three in FIG. 1) sensors 4 are provided in each of the one or more target spaces A1. The sensor 4 is installed, for example, on a wall of the target space A1, and measures the temperature of the target space A1. In the present embodiment, the sensor 4 is electrically connected to the acquisition unit 12 by a cable of RS-485 standard. Therefore, the sensor 4 transmits the measured value of the measured temperature of the target space A1 to the acquisition unit 12 of the control system 10 by wired communication via the cable. Thereby, the acquisition unit 12 acquires the temperature of the target space A1 from the sensor 4.

The communication unit 13 is a communication module for bidirectionally communicating with the terminal 5. In the present embodiment, as a communication method between the communication unit 13 and the terminal 5, any one of a plurality of wireless communication methods such as Wi-Fi (registered trademark) and Bluetooth (registered trademark) is applied, for example. In addition, the communication unit 13 may be configured to bidirectionally communicate with the terminal 5 via, for example, a network such as the Internet.

The air conditioning system 2 is a system used for a central air conditioning system (central air conditioning system) in which heat source machines used for one or more air conditioning systems 2 are collectively installed in one place in a facility. In the present embodiment, the heat source unit is a refrigerator that supplies cold water through the pipe 24. Further, in the present embodiment, the air conditioning system 2 is the AHU as described above, and is installed, for example, in a machine room in a facility. That is, the air conditioning system 2 is installed not in the target space A1 but in a place away from the target space A1. Further, in the present embodiment, the temperature of the air sent from the air conditioning system 2 to the target space A1 in the operating state is lower than the outside air temperature. That is, in the present embodiment, the air conditioning system 2 is a cooling system that makes the temperature of the target space A1 lower than the outside air temperature.

As shown in FIG. 2, the air conditioning system 2 includes two suction ports 20 and 25, a filter 21, a heat exchanger 22, and a blower 23. The suction port 20 is connected to the outside air duct. The suction port 20 takes in the outside air from the outside of the facility through the outside air duct. The suction port 25 is connected to the return air duct 8. The suction port 25 takes in part of the air exhausted from the exhaust port 81 of the target space A1 via the return air duct 8.

The filter 21 is, for example, a dry air filter. The filter 21 removes foreign substances such as dust contained in the air by passing air introduced from each of the suction ports 20 and 25. The air that has passed through the filter 21 is sent to the heat exchanger 22. The filter 21 may be configured by combining an air filter capable of collecting particles having a relatively large particle size and an air filter capable of collecting particles having a relatively small particle size.

The heat exchanger 22 is a device that exchanges heat energy between a heat medium (here, cold water) flowing from the outside (heat source unit) and the air sent to the target space A1. In the present embodiment, the heat exchanger 22 is configured by a coil for cooling. The coil has, for example, a main pipe and heat transfer fins. The main pipe is configured to pass a heat medium (here, cold water) supplied from a heat source machine (here, a refrigerator) through a pipe 24. The heat transfer fins are configured to allow the air that has passed through the filter 21 to pass through. The air that has passed through the heat exchanger 22 is sent to the blower 23.

The blower 23 is a device that sends the air having passed through the heat exchanger 22 to the target space A1. In the present embodiment, the blower 23 is, for example, a centrifugal blower such as a sirocco fan, and is driven by a motor such as an induction motor. The blower outlet of the blower 23 is connected to the air supply duct 7. The air supply duct 7 is connected to, for example, one or more (three in FIG. 2) air outlets 71 provided on the ceiling of the target space A1. The blower 23 sends the air having passed through the heat exchanger 22 to the target space A1 via the air supply duct 7 and the one or more air outlets 71. Then, during the operation of the blower 23, the air sent from the one or more outlets 71 to the target space A1 and the air exhausted from the exhaust port 81 of the target space A1 are exchanged. That is, during operation of the blower 23, ventilation of the target space A1 is performed.

In the present embodiment, the temperature of the target space A1 is adjusted by sending air to the target space A1 while the blower 23 is operating. Therefore, the operating state of the blower 23 corresponds to the operating state of the air conditioning system 2. Further, in the present embodiment, when the blower 23 is stopped, air is not sent to the target space A1, so the temperature of the target space A1 is not adjusted. Therefore, the state in which the blower 23 is stopped corresponds to the stop state of the air conditioning system 2. And in this embodiment, control part 11 opens and closes the feed path from power supply B1 to air-conditioning system 2 by turning on and off relay 3. The blower 23 is in an operating state when power is supplied from the power supply B1, and is stopped when the power supply from the power supply B1 is interrupted. That is, in the present embodiment, it can be said that the control target of the control unit 11 is the blower 23.

The terminal 5 is, for example, an information terminal such as a tablet terminal. The terminal 5 mainly includes, for example, a computer system (including a microcomputer) having a processor and a memory. The terminal 5 installs dedicated application software and starts up the application software, thereby functioning as an apparatus for performing setting work for setting at least control parameters of the air conditioning system 2. In the present embodiment, the control parameters of the air conditioning system 2 are a first threshold C1, a second threshold C2, a target temperature C3 and the like as described later. The terminal 5 is configured to be communicable with the communication unit 13 of the control system 10 using the above-described wireless communication scheme.

The terminal 5 is provided with a display. In the present embodiment, the display of the terminal 5 doubles as a display device for displaying a setting screen, such as a touch panel display, and an input device for receiving an operation by the user. For example, as shown in FIGS. 3A and 3B, a first setting screen 51 and a second setting screen 52 can be displayed on the display of the terminal 5. The first setting screen 51 is a screen mainly for performing settings regarding manual control of a plurality of air conditioning systems 2. As shown in FIG. 3A, the first setting screen 51 mainly includes a first area 511, a second area 512, and a third area 513.

The first area 511 is displayed at the upper left corner of the first setting screen 51. In the first area 511, the button next to the character string "NO INTERMITTENCE" is an object operated by the user when switching on / off intermittent control of the air conditioning system 2 (see the second modification described later). It is. In the first area 511, the button next to the character string "TEMPERATURE" is an object operated by the user when switching on / off temperature control by the air conditioning system 2. Here, "turn on / off temperature control of the air conditioning system 2" is "whether to execute temperature control during operation of the air conditioning system 2" or "turn on / off of the power supply of the air conditioning system 2". is not.

The second area 512 is displayed below the first area 511 in the first setting screen 51. In the second area 512, the character strings "ZONE 1", "ZONE 2", "ZONE 3", and "ZONE 4" respectively correspond one-to-one to a plurality of target spaces A1 in the facility. . In addition, each of the four buttons below the character strings is an object operated by the user when switching the operating state / stop state of the air conditioning system 2. In each of the four buttons, the text "ON" indicates that the air conditioning system 2 is in operation. Further, in each of the four buttons, the character string “OFF” indicates that the air conditioning system 2 is in the stopped state.

The third area 513 is displayed below the second area 512 in the first setting screen 51. In the third region 513, in each of the four display frames below the character strings "ZONE 1", "ZONE 2", "ZONE 3", and "ZONE 4", the corresponding target space A1 The acquired temperature C3 acquired by the sensor 4 is displayed. In the example shown in FIG. 3A, a character string of “00.0 ° C.” is displayed in each of the two display frames below the character strings of “ZONE 3” and “ZONE 4”. Here, it is because the sensor 4 is not installed in object space A1 corresponding to each of "ZONE 3" and "ZONE 4".

The second setting screen 52 is a screen mainly for performing settings regarding automatic control of the plurality of air conditioning systems 2. The second setting screen 52 mainly includes a first area 521, a second area 522, and a third area 523 as shown in FIG. 3B.

The first area 521 is displayed at the upper end of the second setting screen 52. In the first area 521, each of the seven buttons next to the character string "ACTION DAY" is an object operated by the user when switching on / off automatic control of the air conditioning system 2 on the corresponding day of the week. is there. In the example illustrated in FIG. 3B, the button in which the character strings "Tue", "Wed", and "Thu" in the first area 521 are displayed is in a selected state. Thus, the air conditioning system 2 is automatically controlled on Tuesdays, Wednesdays and Thursdays of the week.

The second area 522 is displayed on the second setting screen 52 below the first area 521 across the character string “SCHEDULE”. In the second area 522, the character strings “FAN 1”, “FAN 2”, “FAN 3”, and “FAN 4” respectively correspond to a plurality of air conditioning systems 2 (here, the blower 23) one to one. doing. In addition, a button group next to these character strings is an object operated by the user when setting a time zone for automatically controlling the corresponding air conditioning system 2. In the example shown in FIG. 3B, the four buttons next to the character string “FAN 1” in the second area 522 have character strings “08”, “30”, “18”, and “00” respectively. It is displayed. Therefore, the air conditioning system 2 corresponding to the text string "FAN 1" is automatically controlled between 8:30 and 18:00.

The third area 523 is displayed next to the second area 522 on the second setting screen 52. In the third area 523, each of the four buttons below the character string "Target" is an object operated by the user when setting the target temperature C3 of the corresponding air conditioning system 2. In the third area 523, each of the four buttons below the character string "Upper" has an upper limit value (first threshold C1) of the target temperature C3 of the corresponding air conditioning system 2 and the target temperature C3. It is an object operated by the user when setting the difference. In the third area 523, each of the four buttons on the lower side of the character string “Lower” has the lower limit value (the second threshold C2) of the target temperature C3 of the corresponding air conditioning system 2 and the target temperature C3. It is an object operated by the user when setting the difference. In the example shown in FIG. 3B, the three buttons on the same line as the “FAN 1” string in the third area 523 have the “0.5 ° C.”, “24.0 ° C.”, and “0.5 ° C.” strings respectively. It is displayed. Therefore, in the air conditioning system 2 corresponding to the character string “FAN 1”, the target temperature C3 is 24.0 ° C., the first threshold C1 is 24.5 (= 24.0 + 0.5) ° C., and the second threshold C2 is 23 It is set to .5 (= 24.0-0.5) ° C.

When the control parameter of the air conditioning system 2 is set, the terminal 5 transmits a setting signal including the set control parameter to the communication unit 13 of the control system 10. Then, when the communication unit 13 receives the setting signal, the control unit 11 updates the control parameter stored in the memory to the control parameter included in the received setting signal. The terminal 5 may transmit setting information to the communication unit 13 when a specific operation by the user is received, or may transmit setting information to the control system 10 each time an operation by the user is received. May be Further, the user may appropriately set which of manual control and automatic control of the air conditioning system 2 is to be prioritized.

The main system 6 is installed, for example, in a monitoring room in the facility. The main system 6 is a system different from the control system 10, and controls one or more air conditioning systems 2 separately from the control system 10. In other words, the air conditioning system 2 is one of one or more air conditioning systems 2 controlled by the main system 6 different from the control unit 11. The air conditioning system 2 is controlled based on each of the command from the control unit 11 and the command from the main system 6.

Specifically, the main system 6 adjusts the amount of heat generated by the heat source machine, or adjusts the amount of heat medium (here, cold water) circulated from the heat source machine through the pipe 24, thereby the air conditioning system 2. Adjust the temperature of the air to be sent to the target space A1 Further, the main system 6 controls the motor of the blower 23 of the air conditioning system 2 and adjusts the air volume of the blower 23 to adjust the amount of air supplied from the air conditioning system 2 to the target space A1. That is, the main system 6 adjusts the temperature of the target space A1 by adjusting the parameters related to the air sent from the air conditioning system 2 to the target space A1. This parameter can be changed by the operation of a user having a specific right, such as a facility manager.

(3) Control Hereinafter, an example of control by the control system 10 of the present embodiment will be described using FIG. 4. In FIG. 4, “temperature” indicates the acquired temperature. The same applies to FIGS. 4 to 8 below. Further, in FIG. 4, “ON” indicates that the air conditioning system 2 is in the operating state, and “OFF” indicates that the air conditioning system 2 is in the stopped state. The same applies to FIGS. 5 and 8 below. Moreover, below, the control with respect to one arbitrary air conditioning system 2 is demonstrated. Furthermore, in the following, it is assumed that the air conditioning system 2 is in the stop state when the acquisition unit 12 first acquires the temperature of the target space A1.

First, the acquisition unit 12 periodically acquires the temperature of the target space A1 from the sensor 4. The interval at which the acquisition unit 12 acquires the temperature of the target space A1 from the sensor 4 is, for example, several seconds. The control unit 11 executes a comparison process of comparing the acquired temperature with the first threshold C1 and the second threshold C2 stored in advance. The comparison process is performed each time the acquisition unit 12 acquires the temperature of the target space A1. In the comparison process, when the acquired temperature exceeds the first threshold C1, the control unit 11 transmits a command for turning on the relay 3 (hereinafter referred to as “on command”) to the relay 3 Run. As a result, the relay 3 is turned on, and power is supplied from the power supply B1 to the air conditioning system 2. Then, when the blower 23 of the air conditioning system 2 is driven by receiving the supply of electric power, the air conditioning system 2 is switched from the stop state to the operation state. When the air conditioning system 2 is in the operating state, the target space A1 is cooled by the cold air sent from the blower 23, and the temperature of the target space A1 gradually decreases.

In the comparison process, while the acquired temperature falls between the first threshold C1 and the second threshold C2, the control unit 11 does not particularly execute the switching process for the air conditioning system 2. That is, during this time, the air conditioning system 2 maintains the current state. Thereafter, in the comparison process, when the acquired temperature falls below the second threshold C2, the control unit 11 transmits a command for turning off the relay 3 (hereinafter, referred to as “off command”) to the relay 3 Run. As a result, the relay 3 is turned off, and the power supply from the power source B1 to the air conditioning system 2 is interrupted. Then, when the power supply is interrupted, the blower 23 of the air conditioning system 2 is stopped, and the air conditioning system 2 is switched from the operating state to the stopping state. When the air conditioning system 2 is in the stop state, cold air can not be sent from the blower 23 to the target space A1, and the temperature of the target space A1 gradually rises.

Thereafter, in the comparison process, when the acquired temperature exceeds the first threshold C1, the control unit 11 executes the switching process of transmitting the on command to the relay 3. Thus, the air conditioning system 2 switches from the stop state to the operating state again. And the temperature of object space A1 falls gradually because air-conditioning system 2 will be in an operation state. Hereinafter, the control unit 11 repeats the comparison processing and the switching processing described above, so that the temperature of the target space A1 changes so as to be substantially between the first threshold C1 and the second threshold C2 centered on the target temperature C3. Do.

As described above, in the present embodiment, the control unit 11 performs the air conditioning so that the stopped state is switched to the operating state when the acquired temperature exceeds the first threshold C1 (including “becomes greater than or equal to the first threshold C1”). Control system 2 In addition, the control unit 11 causes the air conditioning system to switch from the operation state to the stop state when the acquired temperature falls below the second threshold C2 smaller than the first threshold C1 (including “becomes less than or equal to the second threshold C2”). Control 2

(4) Modifications The above embodiment is only one of various embodiments of the present disclosure. The above embodiment can be variously modified according to the design and the like as long as the object of the present disclosure can be achieved. Also, functions similar to those of the control system 10 may be embodied in a control method.

The control method according to an aspect includes an acquisition step and a switching step. The acquisition step is a step of acquiring the temperature of the target space A1 targeted by the air conditioning system 2 provided in the facility. The switching step is a step of controlling the air conditioning system 2 so as to switch the operating state in which the air conditioning system 2 operates and the stopped state in which the air conditioning system 2 is stopped according to the temperature acquired in the acquiring step.

Hereinafter, modified examples of the embodiment will be listed. The modifications described below can be applied in combination as appropriate.

(4.1) First Modification As shown in FIG. 5, the control system 10 of the first modification is different from the embodiment in that the control unit 11 performs intermittent control. In the present modification, when the acquired temperature is between the first threshold C1 and the second threshold C2, the control unit 11 performs control to alternately switch the operating state and the stop state, that is, the air conditioning system 2 intermittently. Control to drive. In the example illustrated in FIG. 5, the control unit 11 controls the air conditioning system 2 so that the period D1 in which the air conditioning system 2 is in operation and the period D2 in which the air conditioning system 2 is in suspension are alternately repeated. . Each of the periods D1 and D2 is, for example, several tens of minutes. Moreover, in the example shown in FIG. 5, the control part 11 is performing intermittent control, after execution of the switching process which triggered that acquired temperature exceeds 1st temperature C1. That is, the control unit 11 may not execute the intermittent control after the execution of the switching process triggered by the acquired temperature falling below the second temperature C2.

In the present variation, the length of each of the periods D1 and D2 may be variable according to, for example, the acquired temperature. Further, the length of each of the periods D1 and D2 may be variable according to, for example, a time zone. Moreover, in this modification, although the control part 11 performs intermittent control, when acquired temperature exists between the 1st threshold value C1 and the 2nd threshold value C2, it is not the meaning limited to this. For example, the control unit 11 may periodically execute intermittent control regardless of the acquired temperature.

(4.2) Second Modification In the control system 10 of the second modification, as shown in FIG. 6, a first threshold C1, a second threshold C2, and a target temperature C3 are set for each time zone. This embodiment differs from the embodiment in that That is, in the present modification, the first threshold C1 and the second threshold C2 are set for each time zone. The first threshold C1, the second threshold C2, and the target temperature C3 for each time zone are appropriately set in consideration of the fact that the perceived temperature of the user who uses the target space A1 differs for each time zone. preferable. In the example shown in FIG. 6, the first threshold C1, the first threshold C1, and the fourth threshold C4 are displayed in each of the four time zones from 8 o'clock to 9:30, 9:30 2Threshold C2 and target temperature C3 are set.

In the present modification, the first threshold C1, the second threshold C2, and the target temperature C3 may be set for each of a plurality of time zones. That is, the plurality of time zones are not limited to four, and may be two or three, or five or more. In addition, the setting of the first threshold C1, the second threshold C2, and the target temperature C3 may be the same in two or more time zones of the plurality of time zones.

(4.3) Third Modified Example As shown in FIG. 7, the control system 10 of the third modified example causes the air conditioning system 2 to switch to the stop state when the acquired temperature satisfies the predetermined condition. It differs from the embodiment in terms of control. The predetermined condition is that, for the acquired temperature, the fluctuation range generated during the predetermined operation period E1 of the air conditioning system 2 falls within the predetermined range F1. The predetermined operation period E1 is, for example, several tens of minutes. The predetermined range F1 is appropriately set, for example, in accordance with the fluctuation range of the outside air temperature at the time when the air conditioning system 2 is unnecessary (for example, in the case of a country with four seasons, such as Japan, the middle season such as spring or autumn). Ru.

Here, the main system 6 may not supply the heat medium to the heat exchanger 22 when the air conditioning system 2 is unnecessary. In this case, the air passing through the heat exchanger 22 is not cooled by the heat exchanger 22. Therefore, in this case, the air conditioning system 2 sends air having a temperature substantially equal to the outside air temperature to the target space A1 even in the operating state. That is, in this case, the air conditioning system 2 wastes power. So, in this modification, control part 11 judges whether air-conditioning system 2 is unnecessary by whether acquisition temperature fulfills predetermined conditions. Then, when determining that the air conditioning system 2 is unnecessary, the control unit 11 controls the air conditioning system 2 to switch to the stop state.

In the present modification, it is preferable that the predetermined range F1 be smaller than the difference between the first threshold C1 and the second threshold C2. For example, at a time when the air conditioning system 2 is required (for example, in the case of a country with four seasons such as Japan, summer season), the acquired temperature meets a predetermined condition, and the air conditioning system 2 is unintentionally stopped. It is because it is easy to prevent switching.

(4.4) Fourth Modified Example The control system 10 of the fourth modified example switches to the operating state regardless of the result of the comparison process when the air conditioning system 2 is in the stopped state for a relatively long period of time. Thus, the embodiment differs from the embodiment in that the air conditioning system 2 is controlled. That is, in the present modification, the control unit 11 switches the air conditioning system 2 to the operating state when the period in which the air conditioning system 2 is in the stopped state is longer than the specified period. The prescribed period is, for example, several tens of minutes. Moreover, after the control part 11 switches from a stop state to a driving | running state, the period which maintains a driving | running state is several minutes, for example.

In the present modification, the air conditioning system 2 is temporarily operated for the purpose of ventilating the target space A1 instead of adjusting the temperature of the target space A1. In the present modification, the prescribed period may be appropriately set according to the time. For example, if the air conditioning system 2 is unnecessary, there is a high possibility that the period in which the air conditioning system 2 is in the stopped state (that is, the period when ventilation of the target space A1 is not performed) will be long. Shortening is preferred.

(4.5) Fifth Modified Example The control system 10 of the fifth modified example is different from the embodiment in that the air conditioning system 2 is a heating system that makes the temperature of the target space A1 higher than the outside air temperature. In the present modification, the heat exchanger 22 is configured of a heating coil. And the main pipe of the coil is configured such that the heat medium (here, hot water) supplied from the heat source machine (here, boiler) through the pipe 24 passes. For this reason, the temperature of the air sent from the air conditioning system 2 to the target space A1 in the operating state is higher than the outside air temperature.

Moreover, in this modification, control of the air conditioning system 2 by the control part 11 differs from embodiment. Hereinafter, an example of control by the control unit 11 in the present modification will be described using FIG. Below, control with respect to any one air conditioning system 2 will be described. Moreover, below, when the acquisition part 12 acquires the temperature of object space A1 for the first time, it is assumed that the air-conditioning system 2 is in a driving | running state. In addition, since the comparison process by the control part 11 is the same as embodiment, below, description is abbreviate | omitted.

In the comparison process, when the acquired temperature exceeds the first threshold C1, the control unit 11 executes a switching process of transmitting an off command to the relay 3. As a result, the air conditioning system 2 switches from the operating state to the stopped state. And the temperature of object space A1 falls gradually because air conditioning system 2 will be in a halt condition.

In the comparison process, while the acquired temperature falls between the first threshold C1 and the second threshold C2, the control unit 11 does not particularly execute the switching process for the air conditioning system 2. That is, during this time, the air conditioning system 2 maintains the current state. Thereafter, in the comparison process, when the acquired temperature falls below the second threshold C2, the control unit 11 executes the switching process of transmitting the on command to the relay 3. Thus, the air conditioning system 2 is switched from the stop state to the operating state. And the temperature of object space A1 will rise gradually because air-conditioning system 2 will be in an operation state. Hereinafter, the control unit 11 repeats the comparison processing and the switching processing, so that the temperature of the target space A1 changes so as to be substantially between the first threshold C1 and the second threshold C2 centered on the target temperature C3.

As described above, in the present modification, the control unit 11 performs the air conditioning such that the operating temperature is switched to the stopped state when the acquired temperature exceeds the first threshold C1 (including “becomes greater than or equal to the first threshold C1”). Control system 2 In addition, the control unit 11 switches the air conditioning system from the stop state to the operation state when the acquired temperature falls below the second threshold C2 smaller than the first threshold C1 (including “becomes less than or equal to the second threshold C2”). Control 2

(4.6) Other Modifications Hereinafter, other modifications of the embodiment will be listed. The modifications described below can be applied in combination as appropriate.

The execution subject of the control system 10 in the present disclosure includes a computer system. A computer system comprises a processor and memory as hardware. The processor executes the program stored in the memory of the computer system to implement a function as an execution subject of the system or method in the present disclosure. The program may be pre-recorded in the memory of the computer system, but may be provided through a telecommunication line, or recorded in a recording medium such as a memory card readable by the computer system, an optical disc, a hard disk drive, etc. It may be provided. A processor of a computer system is configured of one or more electronic circuits including a semiconductor integrated circuit (IC) or a large scale integrated circuit (LSI). The plurality of electronic circuits may be integrated into one chip or may be distributed to a plurality of chips. The plurality of chips may be integrated into one device or may be distributed to a plurality of devices.

In the present embodiment, the air conditioning system 2 is a cooling system, but the present invention is not limited to this. For example, the air conditioning system 2 may be a system that combines both a cooling system and a heating system. In this case, the air conditioning system 2 functions as a cooling system when cold water is supplied as a heat medium from a heat source machine (here, a refrigerator). Further, the air conditioning system 2 functions as a heating system when hot water is supplied as a heat medium from a heat source machine (here, a boiler). Further, in this case, the heat exchanger 22 of the air conditioning system 2 may include both a cooling coil used for the cooling system and a heating coil used for the heating system.

Here, when the air conditioning system 2 can operate both the cooling system and the heating system, the control unit 11 determines whether the air conditioning system 2 functions as either the cooling system or the heating system, for example, the air conditioning system 2 You may judge by the installation place of. Specifically, the control unit 11 sets the installation location of the air conditioning system 2 and the schedule of the installation location (for example, in the case of a country with four seasons such as Japan, spring, summer, autumn, winter) May be linked and stored. In this case, for example, when the user sets the installation place of the air conditioning system 2 using the terminal 5, the control unit 11 compares the current date with the schedule of the time at the installation place of the air conditioning system 2 Determine if it corresponds to the time. For example, if the current season is the winter season, the control unit 11 determines that the air conditioning system 2 functions as a heating system, and performs control according to the heating system.

In the present embodiment, the control unit 11 controls the air conditioning system 2 according to the temperature of the target space A1, but the air conditioning system further according to the humidity or air quality (for example, PM 2.5 etc.) of the target space A1. 2 may be controlled. For example, when the control unit 11 controls the air conditioning system 2 according to the temperature and humidity of the target space A1, the temperature of the target space A1 may be close to the target temperature C3 and the humidity of the target space A1 may be close to the target humidity. The user may appropriately set which one is to be prioritized.

In the present embodiment, the acquisition unit 12 acquires the temperature of the target space A1 from the sensor 4 by wired communication, but the present invention is not limited to this configuration. For example, the acquisition unit 12 may be configured to acquire the temperature of the target space A1 from the sensor 4 by wireless communication.

In the present embodiment, the communication unit 13 communicates with the terminal 5 via the network, but the present invention is not limited to this. For example, the communication unit 13 may be configured to communicate with the terminal 5 via, for example, a relay such as a router and a network. Further, the communication unit 13 may be connected to a network via a mobile telephone network (carrier network) provided by a communication carrier. The mobile telephone network includes, for example, a 3G (third generation) line, an LTE (Long Term Evolution) line, and the like. In addition, the communication unit 13 may be connected to the network via a public wireless LAN (Local Area Network). The communication unit 13 may be configured to communicate with the terminal 5 by wired communication.

In the present embodiment, the air conditioning system 2 is installed in the machine room, but it is not intended to limit the installation location of the air conditioning system 2. For example, the air conditioning system 2 may be installed on the back side of the wall of the target space A1, the back side of the ceiling of the target space A1, or the like.

In the present embodiment, the air conditioning system 2 includes the suction ports 20 and 25, the filter 21, the heat exchanger 22, and the blower 23. However, the present invention is not limited to this configuration. For example, the air conditioning system 2 may further include an eliminator, a humidifier, and the like.

In the present embodiment, the air outlet 71 of the air supply duct 7 is provided on the ceiling of the target space A1, but the present invention is not limited thereto. For example, the blower outlet 71 may be provided on the wall of the target space A1 or may be provided on the floor. Moreover, although the exhaust port 81 of object space A1 is provided in the wall of object space A1 in this embodiment, it is not the meaning limited to this. For example, the exhaust port 81 may be provided on the ceiling of the target space A1 or may be provided on the floor.

In the present embodiment, the terminal 5 is a tablet terminal, but the present invention is not limited to this. For example, the terminal 5 may be a smartphone, a personal computer, or various wearable terminals such as a watch. When the terminal 5 has an input device such as a keyboard and a pointing device such as a mouse, for example, the setting operation using the terminal 5 may be performed by an operation using these devices. .

In the present embodiment, the control system 10 includes the communication unit 13, but the communication unit 13 is not an essential component of the control system 10. That is, the control system 10 only needs to include the control unit 11 and the acquisition unit 12, and the communication unit 13 may not be included in the components of the control system 10. When the control system 10 does not include the communication unit 13, the control system 10 preferably includes, for example, an operation unit that receives an operation by the user. In this case, the user can perform the same setting operation as the setting operation using the terminal 5 by operating the operation unit instead of operating the terminal 5.

In the present embodiment, the control system 10 is realized by one system, but may be realized by two or more systems. For example, the functions of the control unit 11, the acquisition unit 12, and the communication unit 13 may be distributed to two or more systems. Also, for example, the functions of the control unit 11, the acquisition unit 12, and the communication unit 13 may be provided in one device that fits in one case, or may be provided in a distributed manner in a plurality of devices. . In addition, at least part of the functions of the control system 10 may be realized by, for example, a cloud (cloud computing).

Incidentally, for example, when the target space A1 is a workplace such as an office, the control system 10 controls the air conditioning system 2 in response to request commands from a plurality of users (for example, employees etc.) who use the target space A1. May be Specifically, the user transmits, to the control system 10, a command requesting adjustment of the temperature of the target space A1 using dedicated application software installed in a portable terminal (for example, a smartphone etc.) owned by the user Do. For example, when the user feels hot, using a portable terminal, a request command (hereinafter, referred to as “first command”) requesting to lower the temperature of the target space A1 is transmitted to the control system 10. Also, for example, when the user feels cold, the mobile terminal sends a request command (hereinafter referred to as “second command”) to the control system 10 to request to raise the temperature of the target space A1. Do.

The control system 10 counts request commands from a plurality of users in real time. And control system 10 adjusts temperature of object space A1 by controlling air-conditioning system 2, when specific conditions are satisfied in a predetermined totaling period. Specifically, for example, when the first command reaches a majority of the total of the first command and the second command in a predetermined aggregation period, the control system 10 lowers the target temperature C3. Also, for example, when the second command reaches a majority of the total of the first command and the second command in a predetermined aggregation period, the control system 10 raises the target temperature C3.

(Summary)
As described above, the control system (10) according to the first aspect includes the control unit (11) and the acquisition unit (12). The control unit (11) controls an air conditioning system (2) provided in the facility. An acquisition part (12) acquires the temperature of object space (A1) which air-conditioning system (2) makes object. The control unit (11) is configured to switch the operation state in which the air conditioning system (2) operates and the stop state in which the air conditioning system (2) is stopped according to the temperature acquired by the acquisition unit (12). Control (2).

According to this aspect, it is possible to adjust the temperature of the target space (A1) by simple control of switching the operating state and the stop state of the air conditioning system (2). That is, according to this aspect, complicated control such as adjustment of parameters related to air that the air conditioning system (2) sends to the target space (A1) is unnecessary, and the target space (A1) targeted by the air conditioning system (2) There is an advantage that the temperature can be easily adjusted by simple control.

In the control system (10) according to the second aspect, in the first aspect, the air conditioning system (2) includes a heat exchanger (22). The heat exchanger (22) exchanges heat energy between the heat medium flowing from the outside and the air sent to the target space (A1).

According to this aspect, there is an advantage that the temperature of the target space (A1) targeted by the air conditioning system (2) including the heat exchanger (22) can be easily adjusted by the simple control.

In the control system (10) according to the third aspect, in the first aspect, the control target of the control unit (11) is a fan (23) provided in the air conditioning system (2). The blower (23) sends the air having passed through the heat exchanger (22) to the target space (A1).

According to this aspect, it is easy to adjust the temperature of the target space (A1) by the simple control of switching between the operating state of the blower (23) and the stopping state of the blower (23). There is an advantage.

In the control system (10) according to the fourth aspect, in any of the first to third aspects, the air conditioning system (2) is controlled by the main system (6) different from the control unit (11). It is one of the above air conditioning systems (2). The air conditioning system (2) is controlled based on each of a command from the control unit (11) and a command from the main system (6).

According to this aspect, there is an advantage that it is easy to adjust the temperature of the target space (A1) regardless of the control of the air conditioning system (2) by the main system (6). For example, it is assumed that only the user having the specific authority is allowed to change the control parameters of the air conditioning system (2) by the main system (6). Even in this case, the user who does not have the specific authority can adjust the temperature of the target space (A1) by changing the control parameters of the air conditioning system (2) by the control unit (11). There is an advantage of.

In the control system (10) according to the fifth aspect, in any one of the first to fourth aspects, the control unit (11) turns on / off the relay (3) to operate and stop. Control the air conditioning system (2) to switch The relay (3) is provided in a feed path from the external power supply (B1) to the air conditioning system (2).

According to this aspect, there is an advantage that the temperature to the target space (A1) can be easily adjusted by simple control of opening and closing the power feeding path from the power source (B1) to the air conditioning system (2).

In the control system (10) according to the sixth aspect, in any of the first to fifth aspects, the air conditioning system (2) is a cooling system. When the temperature acquired by the acquisition unit (12) exceeds the first threshold (C1), the control unit (11) switches to the operating state, and the temperature acquired by the acquisition unit (12) is higher than the first threshold (C1) When the second threshold value (C2), which is smaller than the second threshold value (C2), is exceeded, switching to the stop state is performed.

According to this aspect, it is possible to reduce the frequency at which the operating state and the stop state are switched compared to the case where the operating state and the stop state are switched only by comparing the acquired temperature and the target temperature (C3). There is an advantage. Therefore, according to this aspect, there is an advantage that the energy saving effect can be expected.

In the control system (10) according to the seventh aspect, in any of the first to fifth aspects, the air conditioning system (2) is a heating system. When the temperature acquired by the acquisition unit (12) exceeds the first threshold (C1), the control unit (11) switches to the stop state, and the temperature acquired by the acquisition unit (12) is higher than the first threshold (C1) If it is less than the small second threshold (C2), it switches to the operating state.

According to this aspect, it is possible to reduce the frequency at which the operating state and the stop state are switched compared to the case where the operating state and the stop state are switched only by comparing the acquired temperature and the target temperature (C3). There is an advantage. Therefore, according to this aspect, there is an advantage that the energy saving effect can be expected.

In the control system (10) according to the eighth aspect, in the sixth or seventh aspect, the control unit (11) controls the temperature acquired by the acquisition unit (12) to be the first threshold (C1) and the second threshold (C1) When it is between C2), control to operate the air conditioning system (2) intermittently is performed.

According to this aspect, when the acquired temperature is between the first threshold (C1) and the second threshold (C2), ventilation of the target space (A1) is suppressed while suppressing a change in temperature of the target space (A1). There is an advantage that it is possible to do.

In the control system (10) according to the ninth aspect, in any one of the sixth to eighth aspects, the first threshold (C1) and the second threshold (C2) are respectively set for each time zone.

According to this aspect, there is an advantage that it is easy to adjust the temperature of the target space (A1) appropriately in accordance with the use mode of the user in the target space (A1).

In the control system (10) according to the tenth aspect, in any of the first to ninth aspects, the control unit (11) performs the following control. That is, with respect to the temperature acquired by the acquisition unit (12), the control unit (11) causes the fluctuation range generated during the predetermined operation period (E1) of the air conditioning system (2) to fall within the predetermined range (F1). Switch to the stop state when

According to this aspect, there is an advantage that it is easy to prevent wasteful consumption of power by maintaining the operating state of the air conditioning system (2) at a time when the air conditioning system (2) is unnecessary. That is, according to this aspect, there is an advantage that the energy saving effect can be expected at a time when the air conditioning system (2) is unnecessary.

In the control system (10) according to the eleventh aspect, in the tenth aspect, the predetermined range (F1) is smaller than the difference between the first threshold (C1) and the second threshold (C2).

According to this aspect, there is an advantage that it is easy to prevent the air conditioning system (2) from being unintentionally switched to the stopped state at the time when the air conditioning system (2) is required.

In the control system (10) according to the twelfth aspect, in any of the first to eleventh aspects, the control unit (11) determines that the period during which the air conditioning system (2) is in the stopped state is longer than the prescribed period. Switch the air conditioning system (2) to the operating state.

According to this aspect, there is an advantage that it is easy to prevent the air conditioning system (2) from extending a period during which the target space (A1) is not ventilated, and the comfort of the target space (A1) is not easily impaired.

The control method according to the thirteenth aspect includes an acquisition step and a switching step. An acquisition step is a step which acquires the temperature of object space (A1) which air-conditioning system (2) provided in a facility makes object. The switching step controls the air conditioning system (2) to switch between an operating state in which the air conditioning system (2) operates and a stopped state in which the air conditioning system (2) stops in accordance with the temperature acquired in the acquiring step. It is a step.

According to this aspect, it is possible to adjust the temperature of the target space (A1) by simple control of switching the operating state and the stop state of the air conditioning system (2). That is, according to this aspect, complicated control such as adjustment of parameters related to air that the air conditioning system (2) sends to the target space (A1) is unnecessary, and the target space (A1) targeted by the air conditioning system (2) There is an advantage that the temperature can be easily adjusted by simple control.

The configurations according to the second to twelfth aspects are not essential to the control system (10), and can be omitted as appropriate.

Not limited to the above aspect, various configurations (including modified examples) of the control system (10) according to the embodiment can be appropriately embodied by a control method.

DESCRIPTION OF SYMBOLS 10 control system 11 control part 12 acquisition part 2 air conditioning system 22 heat exchanger 23 fan 3 relay 6 main system A1 target space B1 power supply C1 1st threshold C2 2nd threshold E1 predetermined | prescribed operation period F1 predetermined | prescribed range

Claims (13)

A control unit that controls an air conditioning system provided in the facility;
An acquisition unit configured to acquire a temperature of a target space targeted by the air conditioning system;
The control system controls the air conditioning system to switch between an operation state in which the air conditioning system operates and a stop state in which the air conditioning system is stopped according to the temperature acquired by the acquisition unit. The control system according to claim 1, wherein the air conditioning system includes a heat exchanger that exchanges heat energy between a heat medium flowing from the outside and air sent to the target space. The control target of the control unit is a blower provided in the air conditioning system,
The control system according to claim 2, wherein the blower sends the air having passed through the heat exchanger to the target space. The air conditioning system is one of one or more air conditioning systems controlled by a main system different from the control unit, and is controlled based on each of a command from the control unit and a command from the main system The control system according to any one of claims 1 to 3. The control unit controls the air conditioning system to switch between the operating state and the stopped state by turning on / off a relay provided on a power feeding path from an external power source to the air conditioning system. The control system according to any one of to 4. The air conditioning system is a cooling system, and
The control unit switches to the operating state when the temperature acquired by the acquisition unit exceeds a first threshold, and stops when the temperature acquired by the acquisition unit falls below a second threshold smaller than the first threshold. The control system according to any one of claims 1 to 5, which switches to a state. The air conditioning system is a heating system,
When the temperature acquired by the acquisition unit exceeds a first threshold, the control unit switches to the stopped state, and when the temperature acquired by the acquisition unit falls below a second threshold smaller than the first threshold, the driving is performed. The control system according to any one of claims 1 to 5, which switches to a state. The said control part performs control which makes the said air-conditioning system operate intermittently, when the temperature acquired by the said acquisition part exists between the said 1st threshold value and the said 2nd threshold value. Control system. The control system according to any one of claims 6 to 8, wherein the first threshold and the second threshold are set for each time zone. 10. The control unit switches to the stop state when the fluctuation range generated during a predetermined operation period of the air conditioning system is within a predetermined range for the temperature acquired by the acquisition unit. The control system according to any one of the items. The control system according to claim 10, wherein the predetermined range is smaller than a difference between the first threshold and the second threshold. The control system according to any one of claims 1 to 11, wherein the control unit switches the air conditioning system to an operating state when the period in which the air conditioning system is in the stopped state is longer than a specified period. An acquisition step of acquiring a temperature of a target space targeted by an air conditioning system provided in the facility;
A switching step of controlling the air conditioning system to switch between an operating state in which the air conditioning system operates and a stopped state in which the air conditioning system is stopped according to the temperature acquired in the acquiring step.

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