JPH10334383A - Disaster prevention monitoring system - Google Patents

Abstract

(57) [Summary] [Problem] To easily perform maintenance and inspection on a receiver and a relay panel side, simplify a device configuration, and reduce costs. A fire detector (3) is connected to a transmission path (2) drawn from a receiver (1) to monitor disaster prevention information such as a fire, and a display panel (6) is connected to the receiver (1) via a transmission path (7) to receive a signal. The disaster prevention information transmitted from the device 1 is displayed. The display panel 6 is provided with an inspection unit 8 for inspecting the receiver and the terminal device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal device connected to a transmission line drawn from a receiver or a relay board to monitor disaster prevention information such as a fire or a gas leak. The present invention relates to a disaster prevention monitoring system in which a display panel for displaying disaster prevention information is connected via a computer, and the display panel is provided with an inspector function.

[0002]

2. Description of the Related Art Conventionally, in this type of disaster prevention monitoring system, as shown in FIG. 8, for example, an abnormality detector such as a fire detector 103 is connected to a monitoring transmission line 102 drawn from a receiver 101. At the same time, a terminal control device 105 such as a smoke elimination device and a local acoustic device is connected to the control transmission line 104.

[0003] From the detection information of the fire detector 103, the receiver 1
When 01 determines a fire, it issues a fire alarm and, based on the interlocking control information, the terminal control device 1 corresponding to the fire occurrence area.
05 is driven to control the sound of the area sound and the operation of the smoke prevention equipment. Further, a display panel 106 is connected to the receiver via a transmission path 107 adapted to an interface such as RS485, and disaster prevention information of the receiver 101 is sent to the display panel 106 for display.

FIG. 9 shows a conventional distributed disaster prevention monitoring system in which addresses # 1 and # 1 for monitoring and controlling an abnormality such as a fire.
A plurality of relay boards 115 each having a plurality of fire detectors 1 are arranged in a distributed manner.
03 and the control transmission line 104
Terminal control equipment 10 such as smoke prevention equipment and district sound equipment
5 are connected. Further, the transmission path 11 is connected to the relay board 115.
6b, for example, two display panels 117 are separately connected,
The disaster prevention information of the relay panel 115 is sent to the display panel 117 for display.

[0005] In such a conventional disaster prevention monitoring system, it is necessary to periodically inspect the system. In the system shown in FIG. It is carried out. In the distributed system shown in FIG. 9, the checker 118a is connected to the receiver 111 by the transmission line 116a to check the receiver 111 side, and the relay panel 115 is connected to the checker 118b by the transmission line 116b. The relay board 115 is being inspected.

[0006]

However, in the conventional inspection of the receiver and the repeater, a dedicated inspector must be carried to the site and connected to the receiver or the repeater each time. There is a problem that can not be easily. In addition, a special connector is required to connect the checker to the receiver and the relay panel, and furthermore, transmission of test commands and test report information for check between the checker and the receiver or the relay panel is required. Therefore, in addition to the transmission line for disaster prevention monitoring, a transmission line dedicated to the inspection device is required, and the configuration of the apparatus is complicated, and the cost increases accordingly.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and facilitates maintenance and inspection of a receiver and a relay panel, simplifies the apparatus configuration, and reduces the cost. The purpose is to provide a system.

[0008]

In order to achieve this object, the present invention is configured as follows. According to the present invention, a terminal device is connected to a transmission line drawn from a receiver to monitor disaster prevention information such as a fire or a gas leak, and a display panel connected to the receiver via the transmission line is used for disaster prevention of the receiver. The present invention is directed to a disaster prevention monitoring system that displays information, and a display panel is provided with an inspection unit that inspects a receiver and a terminal device.

Further, according to the present invention, disaster prevention information of a plurality of relay boards arranged in a distributed manner is intensively displayed by a receiver connected through a trunk transmission path, and a terminal device is connected to a terminal transmission path drawn from the relay board. It monitors disaster prevention information such as fire and gas leaks, and furthermore, connects a display panel to each of the relay panel and the receiver via a transmission line to display disaster prevention information.
The display panel connected to the receiver is provided with a receiver inspection unit for inspecting the receiver, relay panel, and terminal device. The display panel connected to the relay panel is provided with a relay panel inspection unit for inspecting the relay panel and terminal device. Is provided.

[0010] By providing a function as an inspector to the disaster prevention display panel externally connected to the receiver or the relay panel via the transmission line in this way, a dedicated inspector is not required, and the receiver and the relay are not required. The device does not require a connector for connecting the inspection device or a transmission line dedicated to inspection, thereby simplifying the device configuration and reducing the cost of the entire system. In addition, there is no need to prepare an inspection device and carry it to the site at the time of inspection, so that maintenance and inspection can be easily performed on the display panel, and inspection can be easily performed.

The inspection unit of the display panel instructs the receiver or the relay panel to perform the inspection and displays the inspection result, and requests the receiver or the relay panel to switch to the inspection mode, and the receiver or the relay unit. A first mode switching unit configured to switch from a process of displaying disaster prevention information to a process of the inspection processing unit when a switching response to the inspection mode is received from the panel. In addition, the receiver and the relay panel perform an inspection execution unit that performs an inspection of themselves and the terminal device based on an inspection instruction from the display panel, and perform a regular process when receiving a request to switch to the inspection mode from the display panel. A second mode switching unit is provided for switching to processing of the inspection execution unit and transmitting response information to the display panel.

The first mode switching section of the display panel activates a first timer when the receiver or the relay panel requests switching to the inspection mode. When the confirmation response of the inspection mode is obtained within the set time of the first timer, the mode is switched to the inspection mode, and the receiver or the relay board is notified of the mode after the switching.
If a confirmation response in the inspection mode is not obtained even after the set time of the first timer has elapsed, switching to the inspection mode is prohibited, and the process returns to the original processing mode.

[0013] The second mode switching unit of the receiver or the relay board includes:
Upon receiving a request for switching to the inspection mode from the display panel, the mode is switched to the inspection mode and the second timer is started. Then, if the mode notification is received from the display panel within the set time of the second timer, the mode is compared with the current switching mode, and if the mode matches the receiving mode, the switching is determined to be successful and the inspection is started. On the other hand, if the mode notification has not been received even after the set time of the second timer has elapsed, or if the mode does not match the reception mode, the mode switching of the own device is prohibited.

As described above, when the display panel is switched to the inspection mode by command transmission from the inspection unit, the mode switching is confirmed and compared between the display panel and the receiver or the relay panel, so that the reliability of the mode switching is improved. Guarantee the quality. If switching to the inspection mode results in an error, a fail-safe operation is performed for both the display panel and the receiver to return to the normal mode before switching. To ensure that the disaster prevention monitoring function is not lost.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a system configuration diagram of a disaster prevention monitoring system according to the present invention, taking a system for centrally monitoring a terminal side by a receiver as an example. A monitoring transmission line 2 is drawn out from a receiver 1 installed in an administrator room or the like, and a fire detector 3 having a transmission function is connected to the monitoring transmission line 2. Further, a control transmission line 4 is drawn from the receiver 1,
A terminal control device 5 having a transmission function is connected to the control transmission line 4. As the terminal control device 5, a local sound device, a smoke prevention device, or the like is used.

The receiver 1 transmits a call command while responding to the detection information while sequentially designating the addresses of the fire detectors 3 connected to the monitoring transmission line 2. When a fire alarm is determined by one of the fire sensors due to a fire, an interrupt signal is sent to the receiver 1. Upon receiving the interrupt signal, the receiver 1 performs a search process for a plurality of fire detectors 3 connected to the monitoring transmission line 2 for the fire detectors, specifies the fire detectors, and issues a report. The sensor is continuously requested to transmit the response of the detection data.

When a fire is determined by the receiver 1 on the basis of a fire alarm from the fire detector 3, a terminal control device such as an area sound device or a smoke elimination device installed corresponding to the fire occurrence area. A control command specifying an address is sent to 5 to activate the area sound and the smoke prevention equipment. Receiver 1
, A display panel 6 is connected by a transmission path 7 using an interface such as RS485. Display panel 6
Receives the transmission of the disaster prevention monitoring information in the receiver 1 and displays the disaster prevention monitoring information. The display panel 6 is provided with an input / output function such as an operation unit, a display unit, and an audio alarm unit equivalent to those of the receiver 1.

In the disaster prevention monitoring system of the present invention, the display panel 6 connected to the receiver 1 via the transmission line 7 has a function as an inspection unit 8. Therefore, the display panel 6
The fire detector 3 connected to the receiver 1 and the receiver 1 via the monitoring transmission line 2 using the inspection unit 8 provided in
And terminal control equipment 5 connected via control transmission line 4
Can be checked.

FIG. 2 is a circuit block diagram of the receiver 1 and the display panel 6 in the disaster prevention monitoring system of FIG. First, a receiver MPU 10 provided with a RAM 9 is provided in the receiver 1, and a terminal transmission unit 1 provided for the receiver MPU 10 is provided.
1, a monitoring transmission line 2a is drawn out, and the fire detector 3 is connected via a repeater 27 having a transmission function.
Further, a control transmission line 4 is drawn out from a terminal control unit 12 provided for the receiver MPU 10 and is connected to a control terminal device 5 via a repeater 28 having a transmission function.

If the control terminal device 5 requires detection information of the operating position as in the case of a smoke elimination device, for example, the monitoring transmission line 2b drawn from the terminal transmission unit 11 is connected to the repeater 28. When the repeater 28 is called by the monitoring transmission line 2b, the transmission control unit 11 transmits the detection information on the operating state of the control terminal device 5 to the receiver MP.
U10 can be collected.

For the receiver MPU 10, a display unit 1
3. Voice synthesis unit 14, operation unit 15, serial transfer unit 1
6, a parallel transfer section 17 and a display panel transmission section 18 are provided. The display panel 6 is connected to a transmission path 7 such as an RS485 interface drawn from a display panel transmission section 18 provided in the receiver 1. The display panel 6 is provided with a display panel MPU 20 having a RAM 19.
Is connected to the receiver 1 side by the display panel transmission unit 21 via the transmission path 7. For the display panel MPU 20, the operation unit 2
2, a display unit 23 and a voice synthesis unit 24 are provided.

The display panel MPU 20 has a function as a display control unit for disaster prevention information transmitted from the receiver 1 and also has a function as shown in FIG.
Has a function as the inspection unit 8 as shown in FIG. An address setting unit 25 and a mode switching unit 26 are provided for the display panel MPU 20 corresponding to the function as the inspection unit 8. The mode changeover switch 26 is connected to the display panel MPU 20
, An instruction to switch between the display control function of disaster prevention information in the regular monitoring state and the inspection function at the time of inspection.

As the mode changeover switch 26, a special mode changeover switch provided on the display panel 6 or a specific mode changeover number set using an address setting DIP switch provided on the display panel 6 is further provided. It is possible to provide appropriate mode switching hardware such as a switching function in which a dedicated bit for mode switching is prepared for the dip switch. It can also be switched by a switch on software. For example, display the mode on the display,
Mode switching can be performed on the operation unit.

The address setting section 25 is connected to the address of the receiver 1 for transmitting an inspection instruction when the display panel MPU 20 is switched to the inspection mode of the inspection section 8 in FIG. The inspection address of the fire detector 3 and the control terminal device 5 is set. Also. The addresses of the receivers and relay boards to be checked may all be specified on the software.

In accordance with the switching of the inspection mode, the operation unit 2
The switch 2 and the push button 2 can be used as operation switches required for inspection, and the display unit 23 displays information on various inspections accompanying the execution of the inspection processing by the display panel MPU 20. That is, when the display panel 6 is switched to the inspection mode by the mode changeover switch 26, an inspection function equivalent to at least the conventional externally connected inspection device 108 shown in FIG. 8 can be realized.

FIG. 3 is a functional block diagram of an inspection process in the disaster prevention monitoring system of the present invention realized by the display panel MPU 20 and the receiver MPU 10 of FIG. First, in the display panel 6, the display processing unit 30,
The function as the first mode switching unit 34 including the display control unit 32 and the first timer 36 is realized. On the other hand, in the receiver 1, the inspection execution unit 40,
The functions of the monitoring control unit 42 and the second mode switching unit 44 including the second timer 46 are realized. In addition, a fire detector and a control terminal device are connected to the monitoring control unit 42 of the receiver 1 as a terminal device 48.

First mode switching section 34 provided on display panel 6
Receives the instruction to switch to the inspection mode by the mode switching unit 26 shown in FIG. 2, and switches the processing function of the display control unit 32 provided on the display panel 6 to the processing function of the inspection processing unit 30. A second mode switching unit 44 is provided on the receiver 1 side corresponding to the first mode switching unit 34 of the display panel 6. When receiving the instruction to switch to the inspection mode from the first mode switching unit 34 of the display panel 6, the second mode switching unit 44 switches the processing of the monitoring control unit 42 provided in the receiver 1 to the processing of the inspection execution unit 40. Switch processing functions. Therefore, display panel 6
The first mode switching unit 34
When each of the second mode switching units 44 of the receiver 1 is switched to the inspection mode, the functions of the inspection processing unit 30 of the display panel 6 and the inspection executing unit 40 of the receiver 1 are enabled, and the inspection processing unit of the display panel 6 is enabled. 30 based on the inspection instructions from
0, the receiver 1 itself, and further the terminal 4
8 is performed.

Items to be checked by the check execution unit 40 include a check of the monitoring control unit 42 of the receiver 1 and an operation test of the terminal device 48 connected via a transmission line. As shown in FIG. 2, the terminal device 48 includes the fire detector 3 and a control smoke-prevention device. The fire detector 3 performs a fire alarm test, and is used as a terminal control device 5. In other words, an operation test such as start-up and return is performed. Further, it is possible to perform a recovery operation of the receiver from the inspection device, a switching of the sensitivity of the analog sensor, and a setting / resetting of the security device.

When switching from the normal mode to the inspection mode by the first mode switching unit 34 of the display panel 6 and the second mode switching unit 44 provided in the receiver 1, the receiver 1 and the display panel 6 are switched.
Is switched to the inspection mode through the exchange of the request message and the response confirmation message using the transmission path 7 according to the RS485 interface connecting the. Basically, the first mode switching unit 34 of the display panel 6 transmits an inspection mode switching request message to the second mode switching unit 44 of the receiver 1, and the second mode switching unit 44 receives the switching request message. Receiver 1
Is switched to the check mode. When the first mode switching unit 34 transmits the inspection mode switching message, the first timer 36 is started.

If the switching response message corresponding to the switching request message is received from the second mode switching unit 44 of the receiver 1 within the set time of the first timer 36, the switching request message has been successfully transmitted to the receiver 1. The first mode switching unit 34
After switching to the inspection mode on the display panel 6,
The own mode state after the switching, that is, the inspection mode, is transmitted to the second mode switching unit 44 of the receiver 1 by a confirmation message.

When the second mode switching unit 44 of the receiver 1 receives the request message for switching to the inspection mode from the first mode switching unit 34 of the display panel 6, the mode of the receiver 1 is inspected from the steady mode. After switching to the mode, the switching response message is returned to the receiving board 6, and the second timer 46 is started. The second timer 46 monitors the reception of the mode notification message after switching from the display panel 6 to the inspection mode within the set time.

When the mode notification message after the mode switching is received from the display panel 6 within the set time of the second timer, the receiving mode is compared with the switching mode in the receiver 1 at this time.
If they match, it is determined that the mode has been normally switched to the inspection mode. On the other hand, if the reception mode from the display panel 6 does not match the current mode of the receiver 1, it is determined that the switching to the inspection mode has failed, and the mode is returned to the original mode.

Further, the display panel 6 is informed of its own current mode by a mode notification message, the discrepancy of the reception mode on the display panel 6 is discriminated, and an error is recognized. The display control mode is restored. Also, the display panel 6 is set within the time set by the second timer 46.
If there is no mode notification message from the side, in this case also, it is determined that there is an error on the display panel 6 side, the mode is returned to the original mode, and the display panel 6 side is notified of its own mode and error processing is performed. Let

FIG. 4 is a flowchart of a mode switching process for the display panel 6 in FIG. 3 to the inspection mode. When the function switching to the inspection mode is determined in step S1, a mode switching request message is transmitted to the receiver 1 in step S2. Simultaneously with this switching request message, the first timer 36 is set and started in step S3. Next, step S4
It is checked whether or not a switching response message has been received from the receiver 1 in step S5. Until the switching response message is received, the time-up of the first timer 36 is monitored in step S5.
When the switching response message is normally received from the receiver 1, the process proceeds to step S6, where the first timer 36 is reset, and in step S7, the switching process to the inspection mode designated at this time is performed. When the mode has been switched, the receiver 1 is switched in step S8.
Is notified of the mode after switching.

On the other hand, if the switching response message is not received from the receiver 1 in step S4 and the first timer 36 times out in step S5, the first timer 3
After resetting 6, the function switching is forcibly returned to the mode before switching in step S10, and an error message is displayed on the display unit and an error message is output from the voice synthesizing unit in step S11.

FIG. 5 is a flowchart of the mode switching process on the receiver 1 side of FIG. First, in step S1, it is checked whether or not a function switching request message has been received from the display panel 6, and when a function switching request message is received, the process proceeds to step S2, where switching to a mode specified by the request message, for example, an inspection mode is performed. Run. When the mode switching is completed, a switching response message is transmitted to the display panel 6 in step S3, and the second timer 46 is set and started in step S4.

Within the set time of the second timer 46,
In step S5, it is checked whether or not the mode notification can be received from the display panel 6. If the mode notification cannot be received, the process proceeds to step S5.
At 6, the time-up of the second timer 46 is determined. When the mode notification from the display panel 6 is normally received in step S5, the second timer 46 is reset in step S7, and it is determined whether or not the reception mode from the display panel 6 and the switched own mode are present. Are compared in step S8.

If the reception mode and the own mode match, a message indicating that the switching has been successful is displayed in step S9, a series of mode switching processing is completed, and the processing in the mode after the switching, for example, the inspection mode is started. On the other hand, when the mode notification from the display panel 6 has not been normally received in step S5, it is determined that the second timer 46 has timed out in step S6, and the process proceeds to step S10, where the second timer 46 is reset. After resetting, an error display of mode switching is performed in step S11, and the current switching mode is notified to the display panel 6 in step S12.

The mode notification from the receiver 1 is shown in FIG.
It is determined in step S1 that there is a function switch, and the display panel 6
A process for returning to the original mode is performed on the side. In addition, when the inspection is completed and the mode is returned from the inspection mode to the normal mode, the function switching for switching from the inspection mode to the normal mode is performed on the display panel 6 in the same manner as in FIG.
In addition, it is possible to return from the inspection mode to the normal display control and monitoring control mode through the process of transmitting and receiving electronic messages on the display panel 6 and the receiver 1 shown in FIG.

FIG. 6 is a block diagram of a system according to another embodiment of the present invention, taking as an example a distributed system in which relay boards are distributed and monitored and controlled. In this distributed disaster prevention monitoring system, a plurality of relay boards 58 indicated by addresses # 1, # 2,... Are distributed and connected to the trunk transmission line 52 drawn from the receiver 50. ing. The relay board 58 connects the fire detector 3 to the monitoring transmission path 2, connects the terminal control device 5 to the control transmission path 4, and further uses a relay panel using an RS485 interface or the like, similarly to the receiver 1 of FIG. In this example, two display panels 6b are connected to the transmission path 7b from 58. The display panel 6b is provided with a function as an inspection unit 8b.

The receiver 50 performs centralized display processing by receiving the transmission of the disaster prevention monitoring information in the plurality of relay boards 58 connected via the trunk transmission line 52. The display panel 6a is also connected to the receiver 50 via a transmission line 7a such as an RS485 interface.
Is provided with a function as an inspection unit 8a. FIG. 7 is a circuit block diagram of the receiver 50 of FIG. 6 and the relay board 58 of the address # 1.
b is also shown. The receiver 50 is a receiver MPU 60
And the trunk transmission line 5 extracted from the trunk transmission unit 61
The relay panel 58 is connected through the connection line 2. Receiver MPU6
For 0, the operation unit 62, the display unit 63, the voice synthesis unit 6
4. A parallel transfer section 65, a serial transfer section 66, and a display panel transmission section 67 are provided, and a display panel 6a is connected to the transmission path 7a drawn from the display panel transmission section 67 as shown in FIG. .

The relay board 58 is provided with a terminal transmission section 72 and a terminal control section 73 with respect to the relay board MPU 70, and is connected to the monitoring transmission line 2a drawn from the terminal transmission section 72 via the relay 27 having a transmission function. The fire detector 3 is connected. In addition, the control transmission line 4 drawn from the terminal control unit 73 is connected to a control terminal device 5 such as a district acoustic device or a smoke elimination device via a repeater 28 having a transmission function.

When the control terminal device 5 needs the detection information of the operating position like a smoke elimination device, the monitoring transmission line 2b drawn from the terminal transmission section 72 is connected to the repeater 28.
To collect detection information. A display unit 74, an operation unit 75, a serial transmission unit 76, a parallel transmission unit 77, and a display panel transmission unit 78 are provided for the repeater MPU 70, and an RS485 interface or the like drawn from the display panel transmission unit 78 is provided. The display panel 6b is connected by the transmission path 7b. The display panel 6b has a RAM 19b.
Display panel MPU 20b, operation 22b, display unit 23 provided with
b, a voice synthesizing unit 24b, an address setting unit 25b, and a mode switching unit 26b, and the configuration is the same as that of the display panel 6 in FIG.

The switching function between the normal mode and the inspection mode realized by the display panel MPU 20b of the display panel 6b is the same as that of the display panel 6 of FIG. 3, and in this case, the function of the receiver 1 is the relay of FIG. This corresponds to the function of the panel MPU 70. Further, the receiver MPU 60 of the receiver 50 of FIG.
6 has the same circuit configuration as the display panel 6b of FIG. 7, and its functions are the same as those of the display panel 6 and the receiver 1 of FIG.

In the distributed disaster prevention monitoring system shown in FIG. 6, the display panel 6a of the receiver 50 and the display panel 6b of each relay panel 58 are provided with functions as inspection units 8a and 8b, respectively. The inspection process can be executed by switching to the inspection mode in which the receiver or the relay panel provided with the inspection units 8a and 8b is the inspection target. In this case, the relay board 58
The switching of the inspection mode by the inspection unit 8b of the display panel 6b connected to and the inspection processing when the inspection mode is switched to the inspection mode correspond to the centralized monitoring system configuration of FIG. 1, that is, the inspection processing of the flowchart of FIG. On the other hand, in the inspection by the inspection unit 8a of the display panel 6a connected to the receiver 50,
For example, if the address of the receiver 50 is # 0 and the addresses of the relay panel 58 are # 1, # 2,..., The inspection unit 8a can switch the inspection mode in which an arbitrary inspection destination address is specified. For example, in the inspection unit 8a of the display panel 6a, the receiver 5
When an instruction to switch to the inspection mode specifying the address # 0 of 0 is issued, only the receiver 50 is switched to the inspection mode, and the inspection processing of the receiver 50 itself is performed.

On the other hand, the inspection panel 8a controls the relay panel 58.
When the address # 1 is specified, the mode switching request message from the inspection unit 8a is transmitted to the relay panel 58 of the address # 1 via the receiver 50 and the trunk transmission line 52, and relayed to the display panel 6a. Switching processing to the inspection mode is performed between the panel 58 and the panel 58. Then, after switching to the inspection mode, address # 1
Detector 58 which is the relay panel 58 itself and its terminal device
Then, a test operation is performed by checking the terminal control device 5, and the test result is transmitted from the relay panel 58 of the address # 1 to the trunk transmission line 52.
Then, it is sent to the inspection section 8a of the display panel 6a via the receiver 50 and displayed.

Of course, the inspection unit 8a of the display panel 6a controls the address # 0 of the receiver 50 and the address # 0 of the relay panel 58.
By specifying both 1, # 2,... At the same time, it is also possible to perform inspection processing accompanying switching to the inspection mode on the receiver 50 and the relay panel 58 side. Also, since there is a transmission function by the trunk transmission line 52 between the relay panel 58 and the receiver 50, for example, one of the inspection units 8b of the display panel 6b provided on the relay panel 58 of the address # 1 performs another relay. Panel 58
Alternatively, after switching to the inspection mode by sending a request message for switching to the inspection mode to the receiver 50, the inspection process can be performed.

Further, in the distributed system shown in FIG. 6, the inspection sections 8a and 8b are provided on all of the display panel 6a of the receiver 50 and the display panel 6b on the relay panel 58 side, but the function of the inspection section is provided. The display panel may be only one of the receivers connected to the receiver and the relay panel. Further, in order to enable the on-site inspection of the relay boards 58 arranged in a distributed manner,
It is desirable to provide an inspection unit in one of the plurality of display panels connected to each relay panel 58.

[0049]

As described above, according to the present invention, the display panel for disaster prevention display connected to the receiver or the relay panel of the disaster prevention monitoring system is provided with a function as an inspector to perform maintenance and inspection. In this way, it is not necessary to prepare a connector for connecting an inspector to the receiver and the relay panel and a dedicated transmission line for inspection separately. Can be simplified and the cost of the entire system can be reduced.

Further, since the inspection function is provided on the display panel connected to the receiver or the relay panel, it is not necessary to carry out the inspection device and carry out the preparation work for connecting the connector as in the related art. For example, even when the receiver or the relay panel breaks down, it is possible to easily make a judgment such as an inspection of an abnormal portion using the function of the inspection section of the display panel.

Further, even when the function of the operation unit of the receiver or the relay panel is broken, the function of the inspection unit is provided on the display panel, so that the operation unit provided on the display panel for inspection is provided. The functions of the operation unit and the display unit of the receiver and the relay panel that have failed can be backed up by the display unit and the display unit, thereby improving the reliability of the entire system.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of a disaster prevention monitoring system of the present invention that performs centralized monitoring control

FIG. 2 is a circuit block diagram of the receiver and the display panel of FIG. 1;

FIG. 3 is a block diagram of an inspection function of the receiver and the display panel of FIG. 2;

FIG. 4 is a flowchart of an inspection switching process by a display panel inspection unit in FIG. 3;

FIG. 5 is a flowchart of an inspection switching process by the receiver inspection unit in FIG. 3;

FIG. 6 is a system configuration diagram of the disaster prevention monitoring system of the present invention that performs distributed monitoring control.

FIG. 7 is a circuit block diagram of the receiver, the relay panel, and the display panel of FIG. 6;

FIG. 8 is an explanatory diagram of an inspection process of a conventional system that performs centralized monitoring control.

FIG. 9 is an explanatory diagram of an inspection process of a conventional system that performs distributed monitoring and control.

[Explanation of symbols]

 1, 18: Receiver 2: Monitoring transmission path 3: Fire detector 4: Control transmission path 5: Terminal control equipment 6, 6a, 6b: Display panel 7, 7a, 7b: Display panel transmission path 8, 8a, 8b: inspection unit 9, 19, 19b: RAM 10, 60: receiver MPU 11, 72: terminal transmission unit 12, 73: terminal control unit 13, 23, 63, 74: display unit 14, 24, 64: voice synthesis Units 15, 22, 62, 75: Operation unit 16, 66, 76: Serial transmission unit 17, 65, 77: Parallel transmission unit 18, 21, 21b, 67, 78: Display panel transmission unit 20, 20b: Display Panel MPU 25, 25b: address setting unit 26, 26b: mode switching unit 27, 28: repeater 30: inspection instruction unit 32: display control unit 34: first mode switching unit 36: first timer 40: inspection execution unit 42 : Monitoring control unit 44: Second Mode switching unit 46: Second timer 48: Terminal device 50: Receiver 52: Trunk transmission line 58: Relay board 61, 71: Trunk transmission unit 70: Repeater MPU

Claims (4)

[Claims] A terminal device is connected to a transmission line drawn from a receiver to monitor disaster prevention information such as a fire or a gas leak, and a display panel is connected to the receiver via a transmission line. A disaster prevention monitoring system comprising: a display panel for displaying the disaster prevention information according to claim 1; wherein the display panel is provided with an inspection unit for inspecting the receiver and the terminal device. 2. Disaster prevention information of a plurality of relay boards arranged in a distributed manner is intensively displayed by a receiver connected through a trunk transmission path, and a terminal device is connected to a terminal transmission path drawn from the relay board to cause a fire. In a disaster prevention monitoring system that monitors disaster prevention information such as gas leaks and further displays a disaster prevention information by connecting a display panel to each of the relay panel and the receiver via a transmission path, the relay panel and the receiver are connected to the receiver. The display panel is provided with a receiver inspection unit for inspecting the receiver, the relay panel and the terminal device, and the display panel connected to the relay panel is provided with a relay panel inspection unit for inspecting the relay panel and the terminal device. Disaster prevention monitoring system characterized by the following. 3. The disaster prevention monitoring device according to claim 1, wherein the inspection unit of the display panel instructs an inspection to the receiver or the relay panel and displays an inspection result, A first mode for requesting the receiver or the relay panel to switch to the inspection mode, and when receiving a response to switch to the inspection mode from the receiver or the relay panel, switching from display processing of disaster prevention information to processing of the inspection processing unit; A switching unit, wherein the receiver and the relay panel perform an inspection of the terminal and the terminal device based on an inspection instruction from the display panel, and a request to switch from the display panel to the inspection mode. And a second mode switching unit that switches from a regular process to a process of the inspection execution unit and transmits response information of an inspection result to the display panel when receiving the message. 4. The disaster prevention monitoring system according to claim 3, wherein the first mode switching unit of the display panel sets a first timer when a request for switching to the inspection mode is given to the receiver or the relay panel. Activate and, if an acknowledgment of the check mode is obtained within the set time of the first timer, switch to the check mode and notify the receiver or relay panel of the mode after the switch, and set the time of the first timer. If an acknowledgment of the check mode is not obtained even after elapse, the switching to the check mode is prohibited and the process returns to the original processing mode. When the switch to the inspection mode is received from the panel, the mode is switched to the inspection mode and the second timer is started. If the mode notification is received from the display panel within the set time of the second timer, the current self switching mode is set. And the reception mode If the mode matches the mode, the switching is determined to be successful and the inspection is started.If the mode notification is not received even after the set time of the second timer has elapsed, or if the mode does not match the reception mode, Disaster prevention monitoring system characterized by prohibiting self mode switching.