JP6734956B1 - Report support system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a notification support system for surely informing a worker at a work site of information about approaching a train in a short time without fail.
A notification support system (1) sends a warning signal to a watchman when operated by relay watchmen (911, 912) watching the arrival of a train or when the arrival of a train is detected. 10 is installed between the watch alarm device and the work site, is capable of unicast communication with the watch alarm device, and is a device other than the watch alarm device. Broadcast communication is possible with respect to the repeater 20 that broadcasts a notification signal by broadcast communication when a warning signal is received from the watch alarm device by unicast communication. An on-site notification device 60 that notifies the user that the manager or the worker is mobile or installed on the work site and receives the notification signal when the notification signal is received.
[Selection diagram] Figure 1

Description

Embodiments of the present invention relate to a notification support system for notifying a worker at a work site that a train is approaching during track maintenance work on a track.

During track maintenance work on the track, in order to ensure the safety of the workers, the manager of the work site notifies the worker when the train is approaching the work site and notifies the worker of the fact from the track. It is necessary to promote the evacuation of Therefore, generally, in track maintenance work, a relay watchman having a wireless communication device such as a transceiver is arranged at a position where the arrival of a train can be seen in advance. When confirming the arrival of the train, the relay watchman informs the manager of the work site that the train is approaching by using a wireless communication device such as a transceiver. Then, the manager, who is contacted by the relay watchman, gives a voice to instruct each worker to evacuate.

In this case, the relay guard is arranged at a position where a sufficient distance can be secured from the discovery of the train to the arrival of the train in order to secure the evacuation time for each worker. Therefore, the relay watchmen are placed near the work site when the train coming from the work site is good, but when the train coming from the work site is poor, they are located away from the work site. Will be placed. In any case, in order to ensure the safety of the workers, it is necessary to transmit the evacuation instruction to all of the many workers who are working at the work site without fail without fail and in a short time. .. However, depending on the position of the worker, the voice of the manager may not reach the worker immediately, and the information of approaching the train may not be instantly known to all the workers.

Utility model registration No. 3083331

The present invention has been made in view of the above circumstances, and an object thereof is to provide a notification support system that can surely inform trainees of information of approaching a train in a short time without omission. Especially.

It is a reporting support system for reporting to a worker at a work site that a train is approaching during track maintenance work on a railway track according to an embodiment, and is operated by a relay guard who keeps an eye on the arrival of the train. Between the alarm device and the alarm device that transmits an alarm signal when the arrival of a train is detected and between the alarm device and the work site. Is a communication method for performing one-to-one communication in which a specific one party is designated as a communication party, and is capable of unicast wireless communication by long-distance wireless communication having a communication distance of 1.5 km or more and the alerting device. It is possible to perform broadcast wireless communication, which is a communication method in which data is transmitted to all other devices within the communication range of wireless communication without specifying a communication partner. A repeater that transmits a response signal indicating that the alerting signal has been normally received to the alerting device when the alerting signal is received by cast communication , and broadcasts the alerting signal by broadcast communication. And a person carried by a manager or a worker of the work site or installed at the work site, and when the notification signal is received, a notification device for a site for notifying that the notification signal has been received And

The figure which shows schematic structure about an example of the notification assistance system by 1st Embodiment. Block diagram showing an example of a schematic configuration of a watch issuing device for the notification support system according to the first embodiment. The block diagram which shows an example of schematic structure of a repeater about the report assistance system by 1st Embodiment. The block diagram which shows an example of schematic structure of the apparatus for managers about the report assistance system by 1st Embodiment. Block diagram showing an example of a schematic configuration of a worker transmission device for the notification support system according to the first embodiment. The block diagram which shows an example of schematic structure of the alerting device for workers about the alerting|reporting assistance system by 1st Embodiment. The block diagram which shows an example of schematic structure of the control apparatus for warning devices about the notification assistance system by 1st Embodiment. The figure which shows an example of the operation|movement flow of each element when reporting the approach information of a train about the report assistance system by 1st Embodiment. The figure which shows an example of the operation|movement flow of each element at the time of canceling an evacuation instruction|indication in the report assistance system by 1st Embodiment. The figure which shows an example of the operation|movement flow of each element when the said line alerting switch and the adjacent line alerting switch are operated at the same time about the alerting|reporting assistance system by 1st Embodiment. The figure which shows schematic structure about an example of the notification assistance system by 2nd Embodiment. The block diagram which shows an example of schematic structure of an automatic reporting device about the report assistance system by 2nd Embodiment.

Hereinafter, a plurality of embodiments will be described with reference to the drawings. In addition, in a plurality of embodiments, the substantially same elements are denoted by the same reference numerals, and the description thereof will be omitted.

(First embodiment)
The first embodiment will be described with reference to FIGS. First, with reference to FIG. 1, an arrangement of personnel in a track maintenance work on a railway track will be described. In FIG. 1, the line that is the target of track maintenance work is the line A. When the line is a double line, the line adjacent to the line A is the adjacent line B. For example, two relay guards 911 and 912, one manager 92, and a plurality of workers 93 are involved in the track maintenance work.

The relay guards 911 and 912 have a role of watching the approach of the train and notifying the manager 92 of the approach of the train when the train approaches. In the case of the present embodiment, the two relay watchmen 911 and 912 are respectively arranged at locations distant from the work site and watch the train approaching the line A and the adjacent line B. In this case, the relay watchman 911 arranged on the upstream side in the traveling direction of the line A watches the train approaching the line A. Further, the relay guard 912, which is arranged on the upstream side in the traveling direction of the adjacent line B, watches the train approaching the adjacent line B. In the following description, if the relay guards 911 and 912 are not distinguished, they are simply referred to as the relay guard 91. The manager 92 is located at the work site, and when receiving a train approach message from the relay guard 91, instructs the worker 93 at the site to evacuate. The worker 93 performs track maintenance work at the work site.

Here, the evacuation grace period is the period from when the manager 92 gives the evacuation instruction until the train actually passes through the work site. In this case, if the evacuation grace period is too long, work efficiency at the site will be reduced. On the other hand, if the evacuation grace period is too short, it is not possible to secure sufficient time for the worker to evacuate, which reduces the safety of the worker. Therefore, the evacuation grace period is preferably about 1 minute in consideration of compatibility between work efficiency and safety. In this case, for example, if the speed of the train is about 100 km/h, it is necessary to notify the approach of the train about 1.7 km before securing the evacuation period of 1 minute.

Therefore, the relay guards 911 and 912 of the present embodiment are arranged, for example, at positions away from the work site by about 1.5 km to 2.0 km. As a result, the evacuation grace period of about 1 minute can be secured. The position of the relay watchman 91 can be appropriately changed according to the operating speed of the passing train and the like. In addition, when the visibility of the work site is good and the train at a position about 1.5 km to 2.0 km away from the work site can be confirmed, the relay guards 911 and 912 may be arranged near the work site.

Next, the configuration of the notification support system 1 will be described. In the following description, the meanings of the terms unicast and broadcast are the meanings of general terms used in the field of wireless communication technology. In this case, unicast means a communication method for performing one-to-one communication in which a specific one party is designated as a communication party. Further, the broadcast means a communication method in which data is transmitted to all the other parties belonging to the same group or network, for example, all the other parties within the communication range of wireless communication, without specifying the other party of the communication.

The notification support system 1 shown in FIG. 1 is for notifying a worker of a work site that a train is approaching during track maintenance work on a railway track. The notification support system 1 includes a watchman alarm device 10, a relay device 20, a manager device 30, a worker transmitter device 40, a worker alarm device 50, and a warning device control device 60.

The watch issuing device 10 is an example of a report issuing device that transmits a report signal when a train arrives. The guard alerting device 10 is carried by each relay guard 91, and when the relay guard 91 finds that a train is coming, it is operated by the relay guard 91 to transmit a warning signal. To do. The watcher alarm device 10 is capable of long-distance communication of 2 km or more by unicast communication with the repeater 20.

As shown in FIG. 2, the watchman alarm device 10 includes the control unit 11, the wireless communication unit 12, the line alarm switch 131, the adjacent line alarm switch 132, the line response display unit 141, and the adjacent line response display. The unit 142, the power supply unit 15, and the rechargeable battery 16 are included. The control unit 11 is mainly composed of, for example, a microcomputer having a storage area such as a CPU, a ROM, a RAM, and a rewritable flash memory. The control unit 11 controls each element of the watch alerting device 10.

The wireless communication unit 12 is for performing wireless communication with an external device, and is drive-controlled by the control unit 11. The wireless communication unit 12 uses, for example, a 920 MHz band private LoRa system as a unicast wireless communication system, and is capable of long-distance wireless communication with a communication distance of 1.5 km or more. In the case of this embodiment, the communication distance of the wireless communication unit 12 is set to 2 km. In the case of the present embodiment, the antenna 121 of the wireless communication unit 12 adopts an external attachment method that is exposed to the outside from the casing 101 of the watch alarm device 10.

The line alarm switch 131 and the adjacent line alarm switch 132 are, for example, push-button switches and are operated by the relay watchman 91. In this case, the line alarm switch 131 is operated by the relay watchman 911 watching the line A. The relay watchman 911 of the line A operates the line alarm switch 131 when the train approaches the line A. Similarly, the adjacent line alarm switch 132 is operated by the relay guard 912 who watches the adjacent line B. When the train approaches the adjacent line B, the relay guard 912 of the adjacent line B operates the adjacent line alarm switch 132.

The line response display unit 141 and the adjacent line response display unit 142 are configured by display lamps having a light source such as an LED. Lighting and extinction of the line response display unit 141 and the adjacent line response display unit 142 are controlled by the control unit 11. The line response display unit 141 is a display for indicating that the alarm signal transmitted by operating the line alarm switch 131 is normally received by the repeater 20. The line response display unit 141 is turned on when the alarm signal generated by operating the line alarm switch 131 is normally received by the repeater 20.

Similarly, the adjacent line response display unit 142 is a display for indicating that the alarm signal transmitted by the operation of the adjacent line alarm switch 132 is normally received by the repeater 20. The adjacent line response display unit 142 lights up when the alarm signal by the operation of the adjacent line alarm switch 132 is normally received by the repeater 20.

The power supply unit 15 has a function of supplying electric power from the rechargeable battery 16 to the control unit 11, the wireless communication unit 12, the line response display unit 141, and the adjacent line response display unit 142. The rechargeable battery 16 is a detachable rechargeable dry battery, a so-called mobile battery, or the like.

The repeater 20 is a device installed between the watch issuing device 10 and the work site. In the case of this embodiment, the repeater 20 is installed at the work site. The relay device 20 has a function of relaying wireless communication between the watch alarm device 10, the worker transmitter 40, the manager device 30, and the alarm device controller 60. The repeater 20 can perform one-to-one wireless communication by unicast communication with the watch issuing device 10. Further, the relay device 20 is capable of communicating by broadcasting to devices other than the alarming device 10 for the watchman. That is, the repeater 20 is capable of performing a simultaneous transmission without specifying a transmission target, in this case, for example, wireless communication in which a simultaneous transmission is performed to the administrator device 30, the worker transmission device 40, and the warning device control device 60. ..

The communication distance by unicast communication between the watch alarm device 10 and the relay 20 is set to be longer than the communication distance by broadcast of the relay 20. That is, the unicast communication between the watchman alarm device 10 and the repeater 20 is long-distance wireless communication, and the broadcast communication between the repeater 20 and the other devices 30, 40, 60 is short. Distance wireless communication. In this case, the communication distance by unicast communication between the watchman alarm device 10 and the repeater 20 is set to 2 km or more. On the other hand, the broadcast communication distance of the repeater 20 is set to about several hundred meters. The broadcast communication distance of the relay device 20 may be set to be approximately the same as the communication distance for unicast communication between the watchman alarm device 10 and the relay device 20.

As shown in FIG. 3, the repeater 20 has a control unit 21, a wireless communication unit 22, a power supply unit 23, and a rechargeable battery 24. The control unit 21 is mainly configured by a microcomputer having a storage area such as a CPU, a ROM, a RAM, and a rewritable flash memory, for example. The control unit 11 controls each element of the repeater 20.

The wireless communication unit 22 is for performing wireless communication with an external device, and is drive-controlled by the control unit 21. The wireless communication unit 22 employs, for example, a 920 MHz band private LoRa system as a wireless communication system, and is capable of long-distance wireless communication with a communication distance of 1.5 km or more and short-distance wireless communication with a communication distance of less than 500 m. is there. In the case of the present embodiment, the communication distance of the wireless communication unit 22 is set to 2 km for long-distance wireless communication and 200 m for short-distance wireless communication. In the case of the present embodiment, the repeater 20 has a plurality of antennas 221 of the wireless communication unit 22. Then, each antenna 221 adopts an external attachment method which is exposed to the outside from the casing 201 of the repeater 20.

When using the long-distance wireless communication, the relay device 20 is capable of one-to-one wireless communication with the alarm issuing device 10 for the watchman. When using the short-distance wireless communication, the repeater 20 broadcasts short-distance wireless communication, that is, short-distance wireless communication, which broadcasts to, for example, the transmitter 40 for workers, the device 30 for managers, and the controller 60 for warning devices. Is possible.

When the control unit 21 normally receives the warning signal of the line or the warning signal of the adjacent line from the warning device 10 for the watchman, the control unit 21 controls the wireless communication unit 22 to perform the long-distance wireless communication to keep watch. A response signal is returned to the alarm issuing device 10. After that, the control unit 21 broadcasts a notification signal to the manager device 30, the worker transmitter device 40, and the warning device control device 60 by short-range wireless communication.

The power supply unit 23 has a function of supplying the power from the rechargeable battery 24 to the control unit 21 and the wireless communication unit 22. The rechargeable battery 16 is a detachable rechargeable dry battery, a so-called mobile battery, or the like.

The manager device 30, the worker transmitter device 40, the worker alarm device 50, and the warning device control device 60 are carried by a manager 92 or a worker 93 at the work site or installed at the work site. In addition, in the case of receiving the notification signal transmitted from the repeater 20, a field notification device for directly or indirectly notifying the manager 92 or the worker 93 of the reception of the notification signal. is there.

The manager device 30 is carried by the manager 92, and is a device for receiving the approach information of the train based on the alarm signal transmitted by the watch alarm device 10. The manager device 30 has the same function as the watch issuing device 10, but has a shorter communication distance than the watch issuing device 10, and the watch issuing device 10 includes On the other hand, the difference is that a release switch 37 and a buzzer 38 are further provided.

The manager device 30 includes a control unit 31, a wireless communication unit 32, the line reporting switch 331, an adjacent line reporting switch 332, a line notification display unit 341, an adjacent line notification display unit 342, a power supply unit 35, and a rechargeable battery. 36, a release switch 37, and a buzzer 38. Like the control unit 11, the control unit 31 mainly includes a microcomputer having a storage area such as a CPU, a ROM, a RAM, and a rewritable flash memory. The control unit 31 controls each element of the administrator device 30.

The wireless communication unit 32 is for performing wireless communication with an external device, and is drive-controlled by the control unit 31. The wireless communication unit 32 uses, for example, a 920 MHz band private LoRa system as a wireless communication system, and is capable of short-range wireless communication with a communication distance of less than 500 m. In the case of this embodiment, the communication distance of the wireless communication unit 32 is set to 200 m. In the case of the present embodiment, the antenna 321 of the wireless communication unit 32 is housed in the housing 301 of the administrator device 30.

The line reporting switch 331 and the adjacent line reporting switch 332 are, for example, push-button switches, like the line reporting switch 131 and the adjacent line reporting switch 132 of the watchman alerting device 10. The line alarm switch 331 and the adjacent line alarm switch 332 are operated by the administrator 92 in the event that the relay guard 91 forgets to press the alarm switches 131 and 132 of the guard alert device 10. It is preliminary.

The line notification display unit 341 and the adjacent line notification display unit 342 are display lamps having a light source such as an LED, like the line response display unit 141 and the adjacent line response display unit 142 of the watch alarm device 10. It is composed of. Lighting and extinction of the line notification display unit 341 and the adjacent line notification display unit 342 are controlled by the control unit 31.

The line notification display unit 341 indicates that the warning signal of the line has been transmitted from the watchman alarm device 10, that is, the alarm signal of the line transmitted from the watchman alarm device 10 is the relay device 20. This is a display for indicating that it has been received by the manager device 30 as a notification signal via. That is, the line notification display unit 341 is for notifying the manager 92 that the train is approaching the line A with a visually recognizable display. The line notification display unit 341 is turned on when the notification signal based on the notification signal of the line transmitted from the repeaters 20 is normally received by the manager device 30.

Similarly, the adjacent line notification display unit 342 indicates that the alert signal for the adjacent line has been transmitted from the alerting device 10 for watchman, that is, the alerting signal for the adjacent line sent from the alerting device 10 for watchman. This is a display for showing that the information signal has been received by the manager device 30 as a notification signal via the repeater 20. That is, the adjacent line notification display unit 342 is for notifying the manager 92 that the train is approaching the adjacent line B with a visually recognizable display. The adjacent line notification display unit 342 lights up when the notification signal based on the adjacent line alert signal transmitted from the repeaters 20 is normally received by the manager device 30.

The power supply unit 35 has a function of supplying the power from the rechargeable battery 36 to the control unit 31, the wireless communication unit 32, the line notification display unit 341, the adjacent line notification display unit 342, and the buzzer 38. The rechargeable battery 36 is a detachable rechargeable dry battery, a so-called mobile battery, or the like.

The release switch 37 is, for example, a push-button type switch, and is operated by the manager 92, similarly to the line alarm switch 331 and the adjacent line alarm switch 332 of the manager device 30. The release switch 37 is pushed when releasing the evacuation instruction to the worker 93 and returning to the normal work. That is, the manager 92 confirms the completion of passing the train, and pushes the release switch 37 when it is not necessary to evacuate the worker 93 and the safety of the work site is secured. When the release switch 37 is operated, the control unit 31 controls the wireless communication unit 32 to transmit a release signal to the watch alarm device 10 via the relay 20. In this case, the control unit 31 also releases the devices other than the warning device 10 for the watchman, such as the device 30 for the administrator, the transmitter 40 for the worker, and the controller 60 for the warning device, via the relay 20. Send a signal.

The buzzer 38 is controlled by the controller 31 and is used to notify the manager 92 of approach information by sound. The control unit 31 causes the buzzer 38 to ring in conjunction with the lighting display of the line notification display unit 341 and the adjacent line notification display unit 342. The buzzer 38 can emit at least two different sounds corresponding to the line notification display unit 341 and the adjacent line notification display unit 342.

For example, when the line notification display unit 341 is lit, the buzzer 38 emits a continuous sound as the first sound. Further, when the adjacent line notification display unit 342 is lit and displayed, the buzzer 38 emits an intermittent sound as a second sound different from the first sound. Thereby, the administrator 92 listens to the sound emitted from the buzzer 38, and without looking directly at the line notification display unit 341 or the adjacent line notification display unit 342, whether the train is approaching the line or the adjacent line is displayed. You can intuitively understand if a train is approaching.

The administrator device 30 may have a vibration generating unit that can generate vibration in combination with the buzzer 38 or in place of the buzzer 38. In this case, the vibration generating unit generates continuous vibration as the first vibration corresponding to the first sound of the buzzer 38, and also generates intermittent vibration as the second vibration corresponding to the second sound of the buzzer 38. You can

The worker transmission device 40 is installed at the work site, and when the notification signal is received from the repeater 20, the fact that the notification signal is received is transmitted to each worker via the worker notification device 50. It is intended to inform indirectly to. In this case, the worker transmission device 40 has a function of further relaying communication between the relay device 20 and the worker notification device 50. As shown in FIG. 5, the worker transmission device 40 includes a wireless communication unit 41, a digital simplified wireless transmitter 42, a power supply unit 43, and a rechargeable battery 44. The wireless communication unit 41, the digital simple wireless transmitter 42, the power supply unit 43, and the rechargeable battery 44 are housed in a waterproof and portable case 401.

The wireless communication unit 41 is a device for performing private LoRa wireless communication, and includes a control unit 411, a wireless communication unit 412, a notification display unit 413, and a voice signal reproduction circuit 414. The wireless communication unit 41 has a configuration independent of the digital simple wireless transmitter 42.

The control unit 411 is mainly configured by a microcomputer having a storage area such as a CPU, a ROM, a RAM, and a rewritable flash memory. The control unit 411 controls each element of the worker transmission device 40.

The wireless communication unit 412 has the same configuration as the wireless communication unit 32 of the administrator device 30. That is, the wireless communication unit 412 is for performing wireless communication with an external device, and is drive-controlled by the control unit 411. The wireless communication unit 412 uses, for example, a 920 MHz band private LoRa system as a wireless communication system, and is capable of short-range wireless communication with a communication distance of less than 500 m. In the case of this embodiment, the communication distance of the wireless communication unit 412 is set to 200 m, for example. In the case of this embodiment, the antenna 415 of the wireless communication unit 412 is housed in the housing 401.

The notification display unit 413 is composed of a display lamp having a light source such as an LED, like the response display units 141 and 142 of the watchman alarm device 10 and the notification display units 341 and 342 of the manager device 30. Has been done. The turning on and off of the notification display unit 413 is controlled by the control unit 411. The notification display unit 413 also serves as a notification for the line and the adjacent line. That is, the notification display unit 413 indicates that the alarm signal for the line or the adjacent line has been transmitted from the watch alarm device 10, that is, the alarm signal for the line transmitted from the watch alarm device 10. This is a display for showing that the information signal has been received by the manager device 30 as a notification signal via the repeater 20. The notification display unit 413 is turned on when the worker transmission device 40 normally receives a notification signal based on the alarm signal of the line or the alarm signal of the adjacent line transmitted from the repeaters 20 at once.

The audio signal reproduction circuit 414 is controlled by the control unit 411, and is for notifying each worker 93 of the approach information of the train via the digital simple wireless transmitter 42. Similar to the buzzer 38 of the administrator device 30, the control unit 411 causes the audio signal reproduction circuit 414 to ring in synchronization with the lighting display of the notification display unit 413. The sound signal reproduction circuit 414, like the buzzer 38 of the administrator device 30, emits at least two different sounds in response to both the approach of the train on the line and the approach of the train on the adjacent line. You can

When the worker transmission device 40 receives the notification signal based on the notification signal of the line, the voice signal reproduction circuit 414 emits a continuous sound as the first voice. Further, when the worker transmission device 40 receives the notification signal based on the notification signal of the adjacent line, the audio signal reproduction circuit 414 emits an intermittent sound as the second sound different from the first sound.

The digital simplified wireless transmitter 42 has a configuration independent of the wireless communication unit 41, is, for example, a commercially available digital transceiver, and has a communication method different from that of the wireless communication unit 412. The external voice signal input unit 421 of the digital simplified wireless transmitter 42 is, for example, a microphone, and can pick up the voice emitted from the voice signal reproduction circuit 414 including a buzzer in the housing 401. It is placed in a position where it can. The antenna 422 of the digital simple wireless transmitter 42 is housed in the housing 401.

Note that the worker transmitter 40 uses a mobile telephone communication network in place of the digital simple wireless transmitter 42 as a wireless transmitter that simultaneously transmits a notification signal to each worker notification device 50. An IP wireless device, a communication device using Bluetooth (registered trademark), a wireless LAN, or the like can be used. In this case, the IP wireless device includes an LTE wireless device, a PoC (Push-to-Talk over Cellular) wireless device, a wireless LAN transceiver, and the like.

The power supply unit 43 has a function of supplying the power from the rechargeable battery 44 to the wireless communication unit 41 and the digital simplified wireless transmitter 42. That is, the wireless communication unit 41 and the digital simplified wireless transmitter 42 share the power supply unit 43 and the rechargeable battery 44. The rechargeable battery 16 is a detachable rechargeable dry battery, a so-called mobile battery, or the like.

In this case, when the wireless communication unit 412 receives the notification signal from the repeater 20, the control unit 411 turns on the notification display unit 413 and causes the audio signal reproduction circuit 414 to sound with a sound that matches the type of the notification signal. .. Then, the external voice signal input unit 421 of the digital simplified wireless transmitter 42 acquires the voice emitted from the voice signal reproduction circuit 414 and transmits the voice to the worker notification device 50 by the digital simplified wireless transmitter 42. .. As a result, the worker transmitter 40 converts the notification signal transmitted from the repeater 20 into voice by the voice signal reproduction circuit 414, and transmits the voice as voice using the digital simplified wireless transmitter 42.

The worker notification device 50 is, for example, worn on the body of each worker 93 and carried, and when the notification signal from the relay device 20 is received via the worker transmission device 40, the notification is given. It directly notifies that the signal has been received. The worker notification device 50 has a function of playing back a voice transmitted from the digital simple wireless transmitter 42 and generating a vibration in accordance with the voice when the voice is transmitted. The worker notification device 50 is built in, for example, a helmet used by the worker 93.

As shown in FIG. 6, the worker notification device 50 includes a control unit 51, a simple digital wireless reception unit 52, a speaker 53, a vibration generation unit 54, a power supply unit 55, and a rechargeable battery 56. The control unit 51 is mainly configured by a microcomputer having a storage area such as a CPU, a ROM, a RAM, and a rewritable flash memory, for example. The control unit 51 controls each element of the worker notification device 50.

The simple digital wireless receiver 52 is a receiving device of a communication system corresponding to the digital simple wireless transmitter 42, and can receive the voice transmitted from the digital simple wireless transmitter 42. If the worker transmission device 40 is equipped with an IP wireless device, a communication device using Bluetooth (registered trademark) or a wireless LAN, etc., instead of the digital simple wireless transmitter 42, the worker notification The device 50 is assumed to include a receiver corresponding to an IP wireless device, a communication device using Bluetooth (registered trademark) or a wireless LAN, instead of the simple digital wireless receiving unit 52.

The speaker 53 is controlled by the control unit 51 and is used to notify the worker 93 of approach information by sound. When the simple digital wireless receiving unit 52 receives the sound emitted from the digital simple wireless transmitter 42 of the transmitter 40 for workers, the control unit 51 drives and controls the speaker 53 and outputs the received sound from the speaker 53. Shed.

The vibration generator 54 is controlled by the controller 51, and is for notifying the worker 93 of the approach information by vibration. The vibration generator 54 is composed of, for example, a small vibration motor or the like. The control unit 51 drives and controls the vibration generating unit 54 when the simple digital wireless reception unit 52 receives the sound emitted from the digital simple wireless transmitter 42 of the worker transmission device 40, and the worker notification device. Vibrate part or all of 50.

In this case, the vibration generator 54 may be operated in conjunction with the ringing of the speaker 53, or may be operated non-interlocked. Further, in the case of the present embodiment, either the first voice, which is a continuous voice, or the second voice, which is an intermittent voice, is output from the speaker 53. In this case, when the first sound is output from the speaker 53, the control unit 51 sets the type of vibration generated in the vibration generating unit 54 to the first vibration that is continuous vibration, and outputs the second sound from the speaker 53. In this case, the type of vibration generated by the vibration generator 54 may be the second vibration which is intermittent vibration. According to this, the worker 93 can easily understand whether the train is approaching the line A or the adjacent line B by not only the sound but also the type of vibration.

The warning device control device 60 is installed at a work site, and when a notification signal transmitted from the repeater 20 is received, the manager 92 and each worker 93 are notified that the notification signal is received. It is intended to inform indirectly. The warning device control device 60 is connected to a warning device such as a warning light 70, and controls the operation of the warning light 70 based on the reception of a notification signal. In this case, the warning device control device 60 controls the turning on and off of the warning light 70 by controlling the supply and interruption of the electric power to the warning light 70.

As shown in FIG. 7, the warning device control device 60 includes a control unit 61, a wireless communication unit 62, a notification display unit 63, a power supply unit 64, a rechargeable battery 65, and a relay 66. The control unit 61 is mainly configured by a microcomputer having a storage area such as a CPU, a ROM, a RAM, and a rewritable flash memory. The control unit 61 controls each element of the warning device control device 60.

The wireless communication unit 62 has the same configuration as the wireless communication unit 32 of the administrator device 30 and the wireless communication unit 412 of the worker transmission device 40. That is, the wireless communication unit 62 is for performing wireless communication with an external device, and is drive-controlled by the control unit 61. The wireless communication unit 62 uses, for example, a 920 MHz band private LoRa system as a wireless communication system, and is capable of short-range wireless communication with a communication distance of less than 500 m. In the case of this embodiment, the communication distance of the wireless communication unit 62 is set to 200 m. In the case of the present embodiment, the antenna 621 of the wireless communication unit 62 is housed in the housing 601 of the warning device control device 60.

The notification display unit 63 has the same configuration as the notification display unit 413 of the worker transmission device 40. That is, the notification display unit 63 is composed of a display lamp having a light source such as an LED. Lighting and extinction of the notification display unit 63 are controlled by the control unit 61. The notification display unit 63 also serves as a notification for the line and the adjacent line. That is, the notification display unit 63 indicates that the warning signal for the line or the adjacent line has been transmitted from the warning device 10 for watchman, that is, the warning signal for the line transmitted from the warning device 10 for watchman. This is a display for showing that the information signal has been received by the manager device 30 as a notification signal via the repeater 20. The notification display unit 63 is lit when the notification signal based on the alarm signal of the line or the alarm signal of the adjacent line transmitted from the repeaters 20 is normally received by the alarm device control device 60.

The power supply unit 64 has a function of supplying electric power from the rechargeable battery 65 to the control unit 61, the wireless communication unit 62, the notification display unit 63, and the relay 66. The rechargeable battery 16 is a detachable rechargeable dry battery, a so-called mobile battery, or the like.

The relay 66 is, for example, a power relay for supplying power, and operates under the control of the control unit 61. The relay 66 is provided between the warning light 70 and the power supply 71. The control unit 61 controls opening/closing of the relay 66 to control the turning off and lighting of the warning light 70. In this case, when the relay 66 is closed, the power source 71 and the warning light 70 are connected and the warning light 70 is turned on. When the relay 66 is opened, the space between the power source 71 and the warning light 70 is opened and the warning light 70 is turned off.

Next, the operation flow of the notification support system 1 will be described with reference to FIGS.
First, a case will be described with reference to FIG. 8 in which the relay guards 911 and 912 have found a train approaching the line A or the adjacent line B. When the relay watchman 911 of the line A finds a train coming to the line A, and when the relay watchman 912 of the adjacent line B finds a train coming to the adjacent line B, the operation flow is Are also common.

That is, when the relay watchman 911 of the line A finds the approach of the train on the line A, as shown in step A11 in FIG. 131 is operated. Then, as shown in step A12, the watchman alarm device 10 transmits the alarm signal of the line to the repeater 20 by unicast long-distance wireless communication by the function of the wireless communication unit 12. When the repeater 20 normally receives the alarm signal of the line transmitted from the watchman alarm device 10 in step A21, the relay device 20 responds to the watchman alarm device 10 as shown in step A22. Send a signal.

Upon receiving the response signal from the repeater 20 as shown in step A13, the watcher alarm device 10 operates the line response display unit 141 or the adjacent line response display unit 142 as shown in step A14. Those corresponding to the alarm switches 131 and 132, in this case, the line response display unit 141 is turned on. If the corresponding response display units 141 and 142 do not light up even though the alarm switches 131 and 132 have been operated, the wireless communication may have failed. In this case, the relay guards 911 and 912 repeatedly operate the reporting switches 131 and 132 until the corresponding response display units 141 and 142 are lit.

In addition, when the response device transmits the response signal in step A22, the watchman alarm device 10 transmits a notification signal indicating that the alarm signal of the line has been received by broadcast short-range wireless communication, as shown in step A23. Send all at once without specifying the transmission target. When the manager device 30, the worker transmitter 40, and the warning device controller 60 receive the notification signal transmitted from the repeater 20, the manager device 30, the worker transmission device 40, and the warning device control device 60 each perform a necessary operation to notify the approach of the train. To do.

In this case, when the manager device 30 receives the notification signal transmitted from the repeater 20 as shown in Step A31, the line notification display unit 341 and the adjacent line notification display unit 342 are displayed as shown in Step A32. The one corresponding to the alarm signal, in this case, the line notification display unit 441 is turned on. Then, the administrator device 30 causes the buzzer 38 to ring with the one of the first voice and the second voice that corresponds to the alarm signal, in this case, the first voice that corresponds to the alarm of the line. As a result, the administrator 92 who carries the device 30 for the administrator can confirm that the train is approaching the work site by the lighting of the notification display units 341 and 342 and the sound emitted from the buzzer 38, and that the train is the line concerned. It is possible to grasp which one of A and the adjacent line B is traveling. Then, the manager 92 gives an evacuation instruction to each worker 93, for example, orally.

Further, when the worker transmission device 40 receives the notification signal transmitted from the repeater 20 as shown in step A41, the worker display device 40 turns on the notification display unit 443 as shown in step A42. Then, in step A43, the worker transmitter 40 causes the sound signal reproduction circuit 414 to ring, and simultaneously transmits the sound emitted from the sound signal reproduction circuit 414 using the digital simple wireless transmitter 42, that is, a transceiver. Broadcast all broadcasts. Then, when the worker notification device 50 receives the digital radio sound transmitted from the worker transmission device 40, the worker notification device 50 reproduces and receives the received sound from the speaker 53 and vibrates. The generator 54 generates a vibration corresponding to the voice. As a result, each worker 93 determines that the train is approaching the work site due to the sound that is output from the speaker 53 and the vibration that is generated by the vibration generating unit 54, and that the train is on either the line A or the adjacent line B. You can see if you are traveling. Then, each worker 93 evacuates to a safe place according to the evacuation instruction of the manager 92 until the evacuation instruction is released.

When the warning device control device 60 receives the notification signal transmitted from the relay device 20 as shown in step S61, the warning device control device 60 turns on the notification display portion 63 as shown in step A62, and as shown in step A63. First, the relay 66 is controlled to turn on the warning lamp 70. Accordingly, the manager 92 and each worker 93 can recognize that the train is approaching the work site by seeing the lighting of the warning light 70. The warning light 70 may indicate the traveling direction of the train by displaying, for example, an arrow shape.

Next, a case where the manager 92 cancels the evacuation instruction will be described with reference to FIG.
When canceling the evacuation instruction, the manager 92 first operates the cancel switch 37 of the manager device 30 as shown in step B31 of FIG. Then, the administrator device 30 transmits a release signal to the repeater 20, as shown in step B32. When the relay device 20 receives the release signal in step B21, the relay device 20 transmits the release response signal to the warning staff alerting device 10 by communication using unicast long-distance wireless communication, as shown in step B22. , A broadcast release cancellation signal is transmitted by communication using short-range wireless communication.

When the watch alarm device 10 receives the release response signal transmitted from the repeater 20 as shown in step B11, the line response display unit 141 and the adjacent line response display unit 142 as shown in step B12. Turn off. Thereby, the relay watchman 91 can recognize that the train has passed the work site and the evacuation instruction has been released.

In addition, when the administrator device 30 receives the release response signal broadcasted from the repeaters 20 as shown in step B33, the administrator display device 30 turns off the notification display units 341 and 342 as shown in step B34. , Buzzer 38 stops ringing.

Further, when the worker transmission device 40 receives the release response signal broadcasted from the repeater 20 as shown in step B41, the worker display device 40 turns off the notification display unit 413 as shown in step B42. The transmission from the digital simple radio transmitter 42, that is, the transmission of the transceiver is stopped. Then, the sound that is output from the speaker 53 of the worker notification device 50 worn by each worker 93 is stopped, and the vibration of the vibration generating unit 54 is stopped. This allows each worker 93 to know that the evacuation instruction has been released.

Then, when the alarm device receives the release response signal broadcasted from the relay device 20 as shown in step B61, the alarm device turns off the notification display portion 63 and controls the relay 66 as shown in step B62. Stop and open the contact. Then, the power supply to the warning light 70 is cut off, and the warning light 70 is stopped or turned off. Also by this, each worker 93 can confirm that the evacuation instruction has been canceled by confirming that the operation of the warning light 70 has stopped.

Next, referring to FIG. 10, regarding the case where the line alarming switches 131, 331 and the adjacent line alarming switches 132, 332 are operated at the same time in the watchman alarm device 10 or the manager device 30. And explain. In the case of the present embodiment, the notification support system 1 uses the line reporting switches 131, 331 when the line reporting switches 131, 331 and the adjacent line reporting switches 132, 332 are operated at the same time. Give priority to the alarm signal. In this case, the same period means a period from when one of the line alarm switches 131 and 331 and the adjacent line alarm switches 132 and 332 is operated to when the release switch 37 is operated.

That is, the notification support system 1 operates when the adjacent line notification switches 132 and 332 are further operated after the line notification switches 131 and 331 are operated and before the release switch 37 is operated, and When the line alarm switches 131 and 331 are further operated after the alarm switches 132 and 332 are operated and before the release switch 37 is operated, the alarm signals by the line alarm switches 131 and 331 are transmitted. Prioritize.

In this case, as shown in step A21 of FIG. 10, the repeater 20 determines whether the alarm signal of the relevant line and the alarm signal of the adjacent line are received from the alarm device 10 for each watchman at the same time. As indicated by A22, the response signal is transmitted only to the watchman alarm device 10 that has transmitted the alarm signal of the line. Thereby, for example, the line response display unit 141 is turned on in the watchman alarm device 10, the line notification display unit 341 is turned on in the manager device 30, and the like. At 50 and 60, the operation related to the approach of the train on the line is executed.

In addition, the notification support system 1 is not limited to this configuration, and when the line alarming switches 131, 331 and the adjacent line alarming switches 132, 332 are operated at the same time, in the alarming device 10 for the watchman. Each device such as turning on both the line response display unit 141 and the adjacent line response display unit 142, and turning on both the line notification display unit 341 and the adjacent line notification display unit 342 in the administrator device 30. At 10, 30, 40, 50, 60, the operation relating to the approach of the train on both the relevant line and the adjacent line may be executed.

According to the embodiment described above, the notification support system 1 is a notification support system for notifying the worker 93 at the work site that the train is approaching in the track maintenance work on the railway track. The notification support system 1 includes a watchman alarm device 10, a relay device 20, a manager device 30 as a site alarm device, a worker transmitter 40, a worker alarm device 50, and a warning device control. And a device 60. The watchman alarm device 10 is one mode of the alarm device and is carried by a relay watchman 91 distant from the work site, and has a function of transmitting a report signal by operating the relay watchman 91. Have

The repeater 20 is installed between the watch issuing device 10 and the work site, and is capable of unicast long-distance wireless communication with the watch issuing device 10. Further, the repeater 20 is capable of performing broadcast communication with a device other than the watchman alarm device 10, in this case, a manager device 30, a worker transmitter 40, and a warning device controller 60. .. The repeater 20 has a function of broadcasting the notification signal by broadcast communication when receiving the notification signal transmitted from the watchman alarm device 10. The manager's device 30, the worker's transmitter 40, the worker's alarm device 50, and the alarm control device 60 as the on-site notification device are carried by the manager 92 or the worker 93 at the work site. Alternatively, it is installed at a work site and has a function of notifying that the notification signal has been received when the notification signal is received.

According to this, the manager 92 operates the alarm device 70 for the watchman by the operation of the device 30 for the manager carried by himself or the alarm device 70 connected to the controller 60 for the alarm device installed at the work site. It is possible to know that the alarm signal has been received from, that is, the train is approaching. In addition, not only the voice of the manager 92 but also the operation of the warning device 70 connected to the worker notification device 50 carried by the worker 93 or the warning device control device 60 installed at the work site is performed by each worker 93. It is possible to know that the warning signal has been received from the warning staff warning device 10, that is, that the train is approaching. As a result, the information about the approach of the train can be made known to each worker 93 at the work site in a short time without fail.

Further, the communication distance for unicast communication between the watch alarm device 10 and the repeater 20 is set to be longer than the broadcast communication distance of the repeater 20. For example, in the case of the present embodiment, the communication distance by unicast communication between the watch alarm device 10 and the repeater 20 is set to 2 km, and the broadcast communication distance of the repeater 20 is set to 200 m. ing. The repeater 20 is installed near the work site. In this case, the vicinity of the work site is a range within which wireless communication by broadcast from the repeater 20 reaches the administrator device 30, the operator transmission device 40, and the warning device control device 60 arranged at the work site. Means inside.

According to this, by increasing the communication distance between the watchman alarm device 10 and the relay device 20 and installing the relay device 20 near the work site, the watchman alarm device 10 can be removed from the work site. Can be placed in a distant position. According to this, when the visibility of the work site is poor, the relay watchman 91 can be arranged at a place far away from the work site, so that the arrival of the train can be reliably confirmed in advance. , Improve safety. Furthermore, by setting the broadcast communication distance of the repeater 20 to be shorter than the unicast communication distance between the watchman alarm device 10 and the repeater 20, the output of the broadcast communication is weakened. As a result, the power consumption of the repeater 20 can be reduced. As described above, according to the present embodiment, it is possible to reduce power consumption while improving safety by using long-distance communication by unicast and short-distance communication by broadcast.

Further, when the repeater 20 normally receives the warning signal transmitted from the watchman alarm device 10, it indicates that the watcher signal has been normally received by the watchman alarm device 10. It has a function of transmitting a response signal. Then, the watchman alarm device 10 has a function of notifying that the response signal has been received when the response signal is received from the repeater 20, for example, by turning on the response display units 141 and 142. ..

According to this, the relay watchman 91 can surely grasp that the alarm signal has been transmitted to the relay device 20. That is, depending on the actual use environment, for example, the relay watchman 91 may mistakenly recognize that the alarm switches 131 and 132 have been operated even though they have not been operated, or a temporary communication failure may occur in wireless communication with the relay device 20. There is a possibility that the alarm signal is not received by the repeater 20 due to the occurrence of the alarm. In this case, if the relay watchman 91 does not notice that the warning signal is not received by the relay device 20 even though the train is approaching, the approach of the train is approached by the manager 92 or the work at the work site. It is dangerous because it cannot be transmitted to the member 93.

On the other hand, according to the present embodiment, the relay guard 91 can check whether or not the alarm signal is reliably transmitted to the relay device 20 by looking at the lighting states of the response display units 141 and 142. You can Then, the relay guard 91 can take measures such as repeatedly operating the alarm switches 131 and 132 until the response display units 141 and 142 are lit and displayed. Therefore, according to the present embodiment, when the relay guard 91 misunderstands or the relay device 20 fails to receive the alarm signal, the relay guard 91 may leave the failure without noticing the failure. Can be suppressed. As a result, the approach of the train can be transmitted to the work site more reliably, and as a result, the safety of the work site can be further improved.

In addition, the notification support system 1 includes a manager device 30 carried by a manager 92 at a work site as a site notification device. The administrator's device 30 has a function of transmitting a cancellation signal to the watchman's alerting device 10 via the relay 20 by the operation of the administrator 92. Then, when the watch alarm device 10 receives the release signal, it has a function of notifying that the release signal has been received by turning off the response display units 141 and 12, for example.

According to this, the manager 92 can release the state of the evacuation instruction by operating the manager device 30 carried by the manager 92, which improves convenience. Further, the relay guard 91 confirms that the train has passed the work site and the evacuation instruction has been canceled by confirming that the response display units 141, 12 of the warning device 10 for guards carried by him/herself have been turned off. You can figure it out.

The notification support system 1 also includes a worker notification device 50 carried by a worker 93 at the work site as a site notification device. When receiving the notification signal from the repeater 20 via the worker transmission device 40, the worker notification device 50 receives the notification signal by, for example, at least one of vibration by the vibration generating unit 54 and voice by the speaker 53. It has a function of notifying the worker 93 of the fact. According to this, the attention of the worker 93 acting on the site can be drawn more quickly and more reliably with respect to the presentation by the display or the like, and the evacuation grace time of the worker 93 can be secured as long as possible. As a result, the safety of the work site can be further improved.

In addition, the notification support system 1 further includes a worker transmission device 40 that relays communication between the relay 20 and each worker notification device 50. In the case of the present embodiment, the worker transmission device 40 is configured to include a digital simplified wireless transmitter 42 as a communication device that broadcasts to each worker notification device 50. The worker transmission device 40 has a function of converting a notification signal into a voice when the notification signal is received from the repeater 20, and transmitting the notification signal simultaneously from the digital simple wireless transmitter 42. Further, when the worker notification device 50 receives a voice transmitted from the digital simple wireless transmitter 42, the worker notification device 50 notifies the voice by reproducing the voice with, for example, the speaker 53, and also generates a vibration corresponding to the voice. The unit 54 has a function of making a report by vibrating.

According to this, as described above, the attention of the worker 93 acting on the spot can be quickly and more surely drawn to the presentation by the display or the like, and the evacuation grace time of the worker 93 can be secured as long as possible. it can. As a result, the safety of the work site can be further improved. Furthermore, since the notification signal is converted into a voice and is simultaneously transmitted from the digital simple wireless transmitter 42, it is possible to instantly inform each worker 93 of the approach of the train all at once. As a result, it is possible to further improve the safety of the work site.

Further, the notification support system 1 includes a warning device control device 60 as a site notification device. The warning device control device 60 is installed at a work site, and is connected to a warning device 70 such as a warning light installed at the work site to control the operation of the warning device 70. The warning device control device 60 includes a relay 66, and has a function of controlling the operation of the warning device 70 by controlling the relay 66 when a notification signal is received.

According to this, the manager 92 and the worker 93 can know the approach information of the train by observing the operation of the warning device 70. Therefore, the approach information of the train can be notified to the manager 92 and the worker 93 more reliably, and as a result, the safety of the work site can be further improved.

(Second embodiment)
Next, a second embodiment will be described with reference to FIGS. 11 and 12.
The notification support system 1 of the present embodiment includes an automatic reporting device 80 instead of the reporting device 10 for the watchman of the first embodiment. The automatic reporting device 80 is arranged at the same place as the place where the relay guard 91 is arranged in the first embodiment. The automatic alarm device 80 has a function of automatically detecting the arrival of a train by, for example, a sensor or image processing. Then, the automatic alarm device 80 has a function of automatically transmitting an alarm signal to the repeater 20 by unicast long-distance communication when the arrival of a train is detected.

In the case of the present embodiment, as shown in FIG. 12, the automatic reporting device 80 includes a control unit 81, a wireless communication unit 82, an image pickup unit 83, an image processing unit 84, a power supply unit 85, and a rechargeable battery 86. There is. The control unit 81 is mainly configured by a microcomputer having a storage area such as a CPU, a ROM, a RAM, and a rewritable flash memory. The control unit 81 controls each element of the automatic reporting device 80.

The wireless communication unit 82 has the same configuration as the wireless communication unit 12 of the watch alert device 10 in the first embodiment. That is, the wireless communication unit 82 is for performing wireless communication with an external device, and is drive-controlled by the control unit 81. The wireless communication unit 82 uses, for example, a 920 MHz band private LoRa system as a unicast wireless communication system, and is capable of long-distance wireless communication with a communication distance of 1.5 km or more. In the case of this embodiment, the communication distance of the wireless communication unit 82 is set to 2 km. In the case of the present embodiment, the antenna 821 of the wireless communication unit 82 adopts an external attachment method which is exposed to the outside from the housing 801 of the automatic alarm device 80.

The imaging unit 83 is an automatic detection unit that automatically detects the arrival of a train. The image capturing unit 83 is, for example, a camera device provided outside the housing 801, and is configured to be capable of capturing continuous still images or moving images. The image capturing section 83 may be integrated with the housing 801. Further, the image capturing unit 83 may be an infrared camera or the like that can capture a temperature image. Further, the automatic reporting device 80 may have a sensor as an automatic detection unit instead of the image pickup unit 83.

The image capturing unit 83 captures an incoming train. The image processing unit 84 processes the image captured by the image capturing unit 83, and determines whether or not the image includes a train coming in. The image processing unit 84 may recognize the train according to a program stored in advance, or may improve the recognition accuracy through learning such as AI. The image processing unit 84 may be virtually realized by executing a program by the control unit 81, or may be configured by a semiconductor circuit or the like different from the control unit 81.

When the image pickup unit 83 and the image processing unit 84 detect the arrival of a train, the control unit 11 drives the wireless communication unit 82 to automatically issue an alarm signal to the repeater 20 by unicast long-distance wireless communication. Send with. According to this, the automatic reporting device 80 can automatically detect the arrival of the train and transmit the reporting signal without the need for the relay watchman 91 of the first embodiment. For this reason, it is possible to reduce the number of personnel to keep an eye on the arrival of trains.

It should be noted that the embodiment of the present invention is not limited to the embodiments described above and illustrated in the drawings, and can be appropriately modified without departing from the scope of the invention.

In the drawings, 1 is a notification support system, 10 is a warning device for guards, 20 is a relay device, 30 is a device for managers (site alarm device), 40 is a transmitter device for workers (site alarm device), 42 is a digital simple wireless transmitter, 50 is a worker notification device (site notification device), 60 is a warning device control device (site notification device), 66 is a relay, 70 is a warning light (warning device), and 80 is An automatic alarm device, 91 is a watchman, 911 is a watchman of the line, 912 is a watchman of an adjacent line, 92 is a manager, 93 is a worker, A is the line, and B is an adjacent line.

Claims (8)

A notification support system for notifying a worker of a work site that a train is approaching during track maintenance work on a railway track,
A warning device that transmits a warning signal when operated by a relay watchman watching the arrival of the train or when the arrival of the train is detected,
It is a communication system that is installed between the reporting device and the work site, and performs one-to-one communication with the reporting device for designating one specific partner as a partner of communication. All parties who are capable of unicast wireless communication by long-distance wireless communication with a communication distance of 1.5 km or more and who are within the communication range of wireless communication without particularly specifying a communication partner for devices other than the above-mentioned alarm issuing device Is capable of performing broadcast wireless communication, which is a communication method for transmitting data to the alerting device, and when the alerting signal is received from the alerting device by unicast communication, the alerting signal is sent to the alerting device. And a repeater that simultaneously transmits a notification signal by broadcast communication while transmitting a response signal indicating that the
What is carried by a manager or worker of the work site or installed at the work site, and a site notification device for notifying that the notification signal is received when the notification signal is received,
A support system for reporting. The communication distance by unicast communication between the alarm device and the repeater is set to be longer than the communication distance by broadcast of the repeater,
The notification support system according to claim 1. Before Kihatsuho device has a function of notifying that it has received the response signal when receiving the response signal from the transponder,
The notification support system according to claim 1. As the on-site notification device, a device for an administrator carried by an administrator of the work site is provided,
The manager device has a function of transmitting a cancellation signal to the alarm device via the relay device by an operation of the manager,
The notification device has a function of notifying that the cancellation signal has been received when the cancellation signal is received,
The notification support system according to any one of claims 1 to 3. As the site alarm device, a worker alarm device carried by a worker at the work site is provided,
The worker notification device has a function of notifying the worker that the notification signal is received by using at least one of vibration, voice, and light when the notification signal is received. Is
The notification support system according to any one of claims 1 to 4. Further comprising a worker transmission device for further relaying communication between the repeater and the worker notification device,
The notification support system according to claim 5. The worker transmitter is configured to include a digital simple wireless transmitter, and when the notification signal is received from the repeater, converts the notification signal into voice and broadcasts from the digital simple wireless transmitter. Has a function
The worker notification device has a function of playing back the sound and generating vibration according to the sound when the sound transmitted from the digital simple wireless transmitter is received.
The notification support system according to claim 6. As the site alarm device, installed in the work site, including a warning device control device connected to a warning device installed in the work site to control the operation of the warning device,
The alarm device control device includes a relay, and has a function of controlling the operation of the alarm device by controlling the relay when the notification signal is received,
The notification support system according to any one of claims 1 to 7.

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