JP7712976B2 - Disaster prevention receiving panel and tunnel disaster prevention system - Google Patents

Description

The present invention relates to a disaster prevention receiving panel that is connected to terminal devices such as fire detectors installed in a monitored area to monitor for abnormalities in the monitored area, and to a tunnel disaster prevention system equipped with the disaster prevention receiving panel.

Traditionally, emergency facilities have been installed in tunnels on expressways and other areas subject to monitoring to protect people and vehicles from fires that may occur within the tunnel.

Such emergency facilities include fire detectors, manual reporting devices, and emergency telephones for monitoring and reporting fires, as well as fire hydrants for extinguishing fires and preventing the spread of fires, and water spray equipment that sprays fire-extinguishing water from water spray heads to protect the tunnel structure from fires. A tunnel disaster prevention system is created by installing a disaster prevention receiving panel that monitors and controls the terminal equipment of these emergency facilities.

Tunnel disaster prevention systems, consisting of disaster prevention receiving panels and terminal devices, are broadly divided into R-type transmission methods and P-type direct transmission methods. The R-type transmission method connects terminal devices such as fire detectors with addresses set to the transmission line, enabling individual management with detection and control on a terminal device basis through transmission control. The P-type direct transmission method divides the terminal devices into designated partition units according to their type, connects multiple terminal devices belonging to the same partition to the signal lines drawn out for each partition, and performs detection and control on a signal line basis.

This type of tunnel disaster prevention system begins monitoring the inside of the tunnel once it is completed and vehicle traffic begins, so it is usually not possible to close the tunnel to traffic, and so continues to monitor the inside of the tunnel 24 hours a day.

In addition, if it becomes impossible to monitor the inside of the tunnel due to maintenance inspection or malfunction of the equipment in the emergency facilities, personnel may be stationed in the monitor passages inside the tunnel to monitor and prepare for an emergency. For this reason, the disaster prevention receiving board has redundancy achieved by duplicating main functions on important circuit boards such as the control board and partition board.

In addition, to enable rapid recovery in the event of a control board or partition board failure, once the tunnel is completed and operations begin, spare boards such as control boards and partition boards are prepared and stored within the facility.

JP 2002-246962 A Japanese Patent Application Publication No. 11-128381 JP 2006-106833 A Japanese Patent Application Publication No. 09-330245

However, if spare boards such as control boards and partition boards are prepared and stored to deal with failures in the disaster prevention receiving panel, if the control board or partition board used in the disaster prevention receiving panel begins to malfunction due to deterioration over time after a long period of operation, the stored spare boards may also deteriorate over time. Even if the failed circuit board is replaced with a spare board, it may no longer function properly, and there is a problem that the reliability of the spare boards cannot be sufficiently ensured.

The present invention aims to provide a disaster prevention receiving panel that improves reliability by ensuring that a replacement spare board will function reliably if the circuit board of the disaster prevention receiving panel fails, and a tunnel disaster prevention system equipped with the disaster prevention receiving panel.

(Disaster prevention receiving panel and tunnel disaster prevention system)
The present invention relates to a disaster prevention receiving panel that can be connected to a terminal device to monitor abnormalities occurring in a tunnel, and a tunnel disaster prevention system equipped with the disaster prevention receiving panel,
The circuit board provided in the disaster prevention receiving panel is replaceable,
The disaster prevention receiving panel is characterized by having a spare board testing section that can check the operation of a spare board stored to replace a specified circuit board before the board is replaced.

(Connection part of spare board)
The spare board is connected to the spare board testing section via a detachable connector.

(Connection of spare board)
The spare board can be connected to the spare board testing section when checking the operation, and can be unconnected from the spare board testing section when not checking the operation.

(Testing spare boards)
The spare board testing section receives power from the power supply section of the disaster prevention receiving panel to check the operation of the spare board.
The disaster prevention receiving panel is capable of maintaining its abnormality monitoring function independently of the standby board operation check by the standby board testing section.

(Division board)
A given circuit board includes a partition board that receives signals from terminal equipment.

(Control board)
The predetermined circuit board includes a control board that performs predetermined control based on a signal received from the terminal device.

(Basic Effects)
The present invention relates to a disaster prevention receiving panel that can be connected to terminal devices to monitor abnormalities occurring inside a tunnel, and a tunnel disaster prevention system that is equipped with the disaster prevention receiving panel, in which a specified circuit board provided in the disaster prevention receiving panel is replaceable, and the disaster prevention receiving panel is equipped with a spare board test section that can check the operation of a spare board that is stored to replace the specified circuit board before the replacement. Therefore, the spare control board and spare partition board, which are the specified circuit boards that are stored and managed, can be connected to the spare board test section of the disaster prevention receiving panel during, for example, periodic maintenance and inspection to conduct an operation test, thereby checking whether the circuit boards such as the spare control board and spare partition board operate normally. If the spare circuit board does not operate normally, it is possible to arrange for a new spare circuit board to be stored and managed. By always storing a spare circuit board whose operation has been confirmed, it is possible to quickly respond to a failure of the disaster prevention receiving panel and minimize the situation in which the monitoring function of the monitored area is lost, thereby improving the reliability of the disaster prevention system.

In addition, because the spare board testing section is installed in the disaster prevention receiving panel, the functions of the disaster prevention receiving panel, such as the transmission path and power supply, can be used as needed.

An explanatory diagram showing the overview of the tunnel disaster prevention system Block diagram showing the circuit board configuration of the disaster prevention receiving panel along with the terminal line connections A circuit block diagram showing an embodiment of a spare board testing unit for verifying the operation of a spare partition board. A circuit block diagram showing an embodiment of a spare board test unit for checking the operation of a spare main partition CPU board and a spare sub partition CPU board. A circuit block diagram showing an embodiment of a spare board test unit for verifying the operation of a spare main control CPU board and a spare sub-control CPU board.

[Outline of tunnel disaster prevention system]
Figure 1 is an explanatory diagram showing the outline of a tunnel disaster prevention system, taking the P-type direct delivery method as an example. As shown in Figure 1, an up-line tunnel 1a and an out-line tunnel 1b are constructed as tunnels for a motorway, and the up-line tunnel 1a and the out-line tunnel 1b are connected by an evacuation tunnel 2.

Inside the up-bound tunnel 1a and the down-bound tunnel 1b, fire detectors 16 functioning as terminal devices are installed along the walls in the longitudinal direction of the tunnels, for example at intervals of 50 meters. The fire detectors 16 set monitoring areas on both sides, 50 meters to the left and right, and when they detect flames caused by a fire, they sound a fire alarm and output a fire detection signal.

In addition, inside the up-bound tunnel 1a and the down-bound tunnel 1b, fire hydrant devices 18 and automatic valve devices 23 are installed, for example, at intervals of 50 meters along the walls of the guard passage in the longitudinal direction of the tunnel. The fire hydrant devices 18 are equipped with manual reporting devices 20 and fire hydrant switches 22 that function as terminal devices.

The fire hydrant device 18 has a hose with a nozzle stored inside the hydrant door. In the event of a fire, the hydrant door is opened to pull out the hose with the nozzle, and when the fire hydrant valve opening/closing lever is opened, fire water is discharged. In addition, the fire hydrant valve opening/closing detection switch is turned on to output a pump start signal and start the fire pump.

The fire hydrant device 18 is also provided with a fire extinguisher door, which houses a fire extinguisher. The fire hydrant device 18 is also provided with a water supply hydrant for use by the fire brigade, and is also provided with a pump start switch that outputs a pump start signal when operated by a fire brigade member. The fire hydrant valve open/close detection switch and the pump start switch are connected in parallel, and function as the fire hydrant switch 22 shown in the figure.

Furthermore, the fire hydrant device 18 is provided with a notification device door, and the notification device door is provided with a manual notification device 20 that functions as a transmitter. When the manual notification device 20 is operated, a fire notification signal is output to the disaster prevention receiving panel 10, and a response lamp is turned on by a response signal from the disaster prevention receiving panel 10.

In addition, inside the up-bound tunnel 1a and the down-bound tunnel 1b, automatic valve devices 23 for the water spray equipment are installed at intervals of, for example, 50 meters along the walls of the guard passage in the longitudinal direction of the tunnel. The automatic valve devices 23 open the main valve by remotely controlling the opening of an operating motorized valve, and spray fire-extinguishing water from multiple water spray heads installed in the longitudinal direction at the top of the tunnel wall to protect the tunnel structure from fire. The automatic valve devices 23 for the water spray equipment are equipped with water spray switches 24 as terminal devices that detect the start of water spraying from the water spray heads. The water spray switches 24 use pressure switches that detect the water spray pressure caused by the opening of the automatic valves and turn on.

A disaster prevention receiving panel 10 is installed in a monitoring center or the like to connect terminal devices such as fire detectors 16, manual reporting devices 20, fire hydrant switches 22, and water spray switches 24 installed in the tunnel to monitor for abnormalities inside the tunnel.

P-type signal lines 11, 12 are pulled out from the disaster prevention receiving panel 10 into the up-line tunnel 1a and the down-line tunnel 1b, and are connected to a fire detector 16, a manual reporting device 20, a fire hydrant switch 22, and a water spray switch 24 installed in the tunnels.

In this embodiment, the tunnel is divided into two groups, each of which has a predetermined length, for example 800 meters, and the fire detectors 16 in each group are connected to individual signal lines. The remaining manual reporting devices 20, fire hydrant switches 22, and water spray switches 24 are connected to signal lines that are drawn out for each block section, with each 800-meter section being divided into block sections of, for example, 200 meters. Note that the following explanation takes the example of a tunnel that is 1,600 meters long and divided into two sections.

Here, the P-type signal line is composed of a signal line and a common line, and the fire detector 16, manual notification device 20, fire hydrant switch 22, and water spray switch 24 send fire detection signals, fire notification signals, pump start signals, and water spray start signals to the disaster prevention receiving panel 10 by passing line current based on their respective activations.

In addition, power lines are drawn from the disaster prevention receiving panel 10 to terminal devices installed inside the tunnel, such as a fire detector 16, a manual reporting device 20, a fire hydrant switch 22, and a water spray switch 24, and DC 48V, for example, is supplied.

Other emergency facilities for the tunnel include a fire pump system 25, ventilation system 28, warning display board system 30, radio rebroadcast system 32, TV monitoring system 34, lighting system 36, and IG satellite station system 38. Except for the IG satellite station system 38, which is connected by a data transmission line, all other equipment is individually connected to the disaster prevention receiving panel 10 by a P-type signal line group 14.

Here, the IG child station equipment 38 is a communication equipment that connects the disaster prevention receiving panel 10 and the remote management equipment 42 via the network 40. The ventilation equipment 28 is an equipment that gives energy to the air in the tunnel by operating a jet fan installed on the ceiling side of the tunnel to blow out air at a high speed, thereby creating a ventilation flow in the longitudinal direction of the tunnel.

The warning display board equipment 30 is equipment that notifies users inside the tunnel of the outbreak of a fire inside the tunnel, the start of water spraying, etc. by displaying it on an electronic display board. The radio rebroadcast equipment 32 is equipment that enables drivers and others inside the tunnel to receive information from the road administrator. The TV monitoring equipment 34 is equipment that is used to confirm the scale and location of a fire, activate the water spray equipment, and grasp the situation inside the tunnel when providing evacuation guidance. The lighting equipment 36 is equipment that drives and manages the lighting equipment inside the tunnel.

[Disaster prevention receiving panel board configuration]
Fig. 2 is a block diagram showing the board configuration of the disaster prevention receiving panel together with the terminal line connection. As shown in Fig. 2, the disaster prevention receiving panel 10 is provided with a control rack 46 and a partition rack 52. The control rack 46 is provided with a main control CPU board 48 and a sub-control CPU board 50 which are duplicated and function as the main control board.

The main control CPU board 48 and the sub-control CPU board 50 function as a duplicated main control unit, and when it determines that a fire detection signal from the fire detector 16 or a fire notification signal from the manual notification device 20 has been received, it performs a specified fire alarm control, when it determines that a pump start signal has been received from the fire hydrant switch 22, it performs start-up control of the fire pump equipment 25, and further when it determines that a water spray start signal has been received from the water spray switch 24, it controls the alarm display board equipment 30 to display a warning message on the electronic display board that warns against entering the tunnel when water spray starts.

The partition rack 52 is provided with a duplicated main partition CPU board 54 and a sub partition CPU board 56 that function as partition control boards. The partition rack 52 is also provided with partition boards 60-1 and 60-2 corresponding to the terminal equipment of the two 800-meter sections of the up-line tunnel 1a, and partition boards 60-3 and 60-4 corresponding to the terminal equipment of the two 800-meter sections of the down-line tunnel 1b. The terminal equipment installed in the up-line tunnel 1a is connected to the partition boards 60-1 and 60-2 by a signal line group 11, and the terminal equipment installed in the down-line tunnel 1b is connected to the partition boards 60-3 and 60-4 by a signal line group 12.

The partition rack 52 is provided with P-type output boards to which the external fire pump equipment 25, ventilation equipment 28, alarm display board equipment 30, radio rebroadcast equipment 32, TV monitoring equipment 34, and lighting equipment 36 shown in FIG. 1 are connected, but are not shown in the figure.

P-type signal circuits 80-1, 82-1, 84-1, 86-1 are drawn from the partition board 60-1 to the fire detectors 16, manual reporting devices 20, fire hydrant switches 22, and water spray switches 24 of group G1 installed in the 0-800 meter section of the up-bound tunnel 1a. The fire detectors 16 are connected on a circuit-by-circuit basis, and the manual reporting devices 20, fire hydrant switches 22, and water spray switches 24 are connected on a block-by-block basis.

P-type signal circuits 80-2, 82-2, 84-2, 86-2 are drawn from the partition board 60-2 to the fire detectors 16, manual reporting devices 20, fire hydrant switches 22, and water spray switches 24 of group G2 installed in the 800-1600 meter section of the up-bound tunnel 1a. The fire detectors 16 are connected on a circuit-by-circuit basis, and the manual reporting devices 20, fire hydrant switches 22, and water spray switches 24 are connected on a block-by-block basis.

Here, there are 16 fire detectors 16 in one 800-meter section, and the other terminal equipment is divided into four 200-meter blocks over the 800 meters, so signal line groups 80-1 and 80-2 each have 16 lines, signal line groups 82-1 to 86-2 each have 4 lines, and signal line group 11 bundles 56 lines.

In addition, the partition rack 52 is provided with a detector test board that sends a test signal to the fire detector 16 via a test signal line that serves as a jumper wiring, but this is not shown in the figure.

The partition boards 60-1 and 60-2 are provided with line receiving units corresponding to the signal lines from the terminal equipment, and when the line receiving units receive a line signal from the terminal equipment, they output a line reception detection signal to the main partition CPU board 54 and the sub-partition CPU board 56 via the corresponding transmission signal line of the transmission signal line group 92.

Partition boards 60-3 and 60-4 are provided to correspond to down-line tunnel 1b, and are essentially the same as partition boards 60-1 and 60-2 that correspond to up-line tunnel 1a.

Here, the group of transmission signal lines connecting the main partition CPU board 54, the sub partition CPU board 56, and the partition racks 60-1 to 60-4 includes power lines that supply power to each board.

The main partition CPU board 54 and the sub-partition CPU board 56 are connected to the duplicated main control CPU board 48 and the sub-control CPU board 50 via duplicated serial transmission paths 76, 78 such as RS-485.

The main partition CPU board 54 and the sub-partition CPU board 56 function as a duplicated partition control unit, and when a line reception detection signal is received from a terminal device installed inside the tunnel via the partition boards 60-1 and 60-2, a line reception information signal including the type of terminal device connected to the received signal line and the line number is sent to the main control unit duplicated by the main control CPU board 48 and the sub-control CPU board 50 to perform the specified control.

The disaster prevention receiving panel 10 is also provided with an operation display CPU board 64, to which an operation section 66 equipped with a touch panel and various operation switches and an audio section 68 equipped with a speaker are connected, and a display section 72 equipped with a liquid crystal display and various indicator lights is connected via a display control board 70. The disaster prevention receiving panel 10 is also provided with a serial CPU board 74, to which the IG slave station equipment 38 shown in FIG. 1 is connected.

The disaster prevention receiving panel 10 is further provided with a power supply rack 75. The power supply rack 75 receives AC power from an emergency power supply of AC 100V, converts it into DC power of a different predetermined voltage for each system, and supplies it to the power lines of the C5V in-panel processing system, the DC12V in-panel display system, the DC24V external reporting system, and the DC48V tunnel monitoring system. The disaster prevention receiving panel is also provided with a power supply monitoring rack (not shown), which is equipped with a power supply switching circuit, a voltage monitoring circuit, a storage battery circuit, etc., and is used to monitor and control the power supply unit provided in the power supply rack 75 and to control the display of the red indicator lamp and response lamp provided on the fire hydrant device in the tunnel.

[Storage and management of spare circuit boards]
2 is installed, and monitoring of the inside of the tunnel by the disaster prevention receiving panel 10 is started, a spare main control CPU board 48a, a spare sub-control CPU board 50a, a spare main partition CPU board 54a, and a spare sub-partition CPU board 56a are prepared as spare boards corresponding to the main control CPU board 48, the sub-control CPU board 50, the main partition CPU board 54, and the sub-partition CPU board 56 which function as control boards provided in the disaster prevention receiving panel 10, and are stored and managed within the facility. Note that the spare main control CPU board 48a and the spare sub-control CPU board 50a are omitted from the illustration.

In addition, one or more spare partition boards 60a are prepared as spare boards corresponding to the partition boards 60-1 to 60-4 installed in the disaster prevention receiving panel 10, and are stored and managed within the facility.

A spare board testing section 100 is provided in the partition rack 52 to check the operation of the spare main partition CPU board 54a, spare sub-partition CPU board 56a, and spare partition board 60a, which are stored and managed in this manner, and a spare board testing section 102 is provided in the control rack 46 to check the operation of the spare main control CPU board 48a and spare sub-control CPU board 50a, which are also stored and managed.

The spare board testing section 100 provided in the partition rack 52 is provided with transmission connector sections 104, 114-1, and 114-2, and when testing the operation of the spare partition board 60a, the test operation section 106 is connected to the spare partition board 60a by the line connector section 105, as shown by the imaginary line; details of this will be explained later.

In addition, the main control CPU board 48, sub-control CPU board 50, main partition CPU board 54, and sub-partition CPU board 56 are detachably attached to the CPU board connector 88, and the partition boards 60-1 to 60-4 are detachably attached to the partition board connector 90, allowing each to be easily and simply replaced with a spare board.

[Operational management of spare partition boards]
(Configuration of spare board testing section)
FIG. 3 is a circuit block diagram showing an embodiment of a spare board testing section for checking the operation of a spare partition board.

As shown in FIG. 3, the spare board testing section 100 provided in the partition rack 52 in FIG. 2 is provided with a transmission connector section 104 for detachably connecting the spare partition board 60a to the transmission signal line group 92, and a test operation section 106 is provided detachably on the line connection side of the spare partition board 60a by a line connector section 105.

The spare partition board 60a is provided with multiple line receiving units 110 corresponding to the terminal equipment installed on the tunnel side. The test operation unit 106, which is connected to the line connection side of the spare partition board 60a by the line connector unit 105, is provided with a test switch 108 corresponding to the line receiving unit 110 of the spare partition board 60a, and when connected to the spare partition board 60a by the line connector unit 105, the test switch 108 is input-connected to the line receiving unit 110.

The power supply line 93 included in the transmission signal line group 92 is branched and connected to the transmission connector section 104. When the spare partition board 60a is fitted into the transmission connector 104, power is supplied from the power supply line 93 via the transmission connector section 104 to the spare partition board 60a, causing it to enter an operating state.

Note that the transmission connector section 104 shown in FIG. 2 connects the output of the line receiving section 110 to the transmission signal line group 92 as shown by the imaginary lines in FIG. 3, but the transmission connector section 104 that connects the spare partition board 60a does not have the line shown by the imaginary line that connects the output of the line receiving section 110 to the transmission signal line group 92.

The transmission connector section 104 is also provided with a test display section 112, and when the spare partition board 60a is connected, the output of the line receiving section 110 is input and connected to the test display section 112. When a line reception detection signal is output from any of the multiple line receiving sections 110, the test display section 112 lights or blinks a test indicator light such as an LED.

(Operation test of spare partition board)
During regular inspection of the tunnel disaster prevention system, as shown in Figure 2, an inspector connects the output side of a stored spare partition board 60a to the transmission connector part 104 of the spare board testing part 100 shown in Figure 3, which is provided on the partition rack 52 of the disaster prevention receiving panel 10, in order to check its operation, and also connects a test operation part 106 to the line connection side of the spare partition board 60a via a line connector part 105.

When the spare partition board 60a is connected to the line connector section 105, the spare partition board 60a receives power from the power line 93 and enters an operating state. In this state, the test switches 108 provided in the test operation section 106 are turned on in sequence.

When the test switch 108 is turned on, the terminal device installed in the tunnel is put into the same state as outputting a line signal, and a pseudo line signal is output to the line receiving section 110 of the spare partition board 60a connected by the signal line. If the line receiving section 110 operates normally, a line reception detection signal is output, and the test display section 112 provided on the transmission connector section 104 turns on a test indicator light, for example, allowing the inspector to confirm that the spare partition board 60a is operating normally.

The operation test of the spare partition board 60a is performed by turning on all test switches 108 provided in the test operation unit 106, and when the test indicator lights are lit by the test display unit 112 when all test switches 108 are turned on, it can be confirmed that the spare partition board 60a is operating normally.

On the other hand, if the indicator light by the test display unit 112 does not light up even when the test switch 108 is turned on, it is determined that the spare partition board 60a is malfunctioning due to a breakdown or the like, and the malfunctioning spare partition board 60a can be removed from storage and a new spare partition board 60a can be ordered and delivered.

When the spare board testing section 100 tests to check the operation of the spare partition board 60a, it receives power from the disaster prevention receiving panel 10, but is not connected to the circuit section of the disaster prevention receiving panel below that, so that the operation of the spare partition board 60a can be checked independently of the tunnel monitoring function of the disaster prevention monitoring panel 10 without affecting the tunnel monitoring function of the disaster prevention receiving panel 10.

[Operational management of spare partition CPU board]
(Configuration of spare board testing section)
FIG. 4 is a circuit block diagram showing an embodiment of a spare board testing section for checking the operation of a spare main-partition CPU board and a spare sub-partition CPU board.

As shown in FIG. 4, the spare board testing section 100 provided in the partition rack 52 in FIG. 2 is provided with a transmission connector section 114-1 (first transmission connector section) for detachably connecting the spare main partition CPU board 54a to the serial transmission paths 76, 78 and the transmission signal line group 92, and a transmission connector section 114-2 (second transmission connector section) for detachably connecting the spare sub partition CPU board 56a.

The spare main partition CPU board 54a and the spare sub partition CPU board 56a are provided with a CPU 120, a memory section 122, two serial transmission sections 124, and an I/O port section 126.

The duplicated serial transmission paths 76, 78 are branched and connected to the transmission connector unit 114-1, thereby connecting to the serial transmission paths 76, 78 of the serial transmission unit 124 of the spare main partition CPU board 54a. The transmission connector unit 114-1 also connects each transmission signal line in the transmission signal line group 92 to each port of the I/O port unit 126, and branches the power line 93 in the transmission signal line group 92 to supply power to the spare main partition CPU board 54a.

The transmission connector section 114-1 is also provided with a test switch 116-1 and a test indicator light 118-1 using an LED. The test switch 116-1 is connected to an input port in the I/O port section 126 provided on the spare main partition CPU board 54a, and the test indicator light 118-1 is connected to an output port of the I/O port section 126 provided on the spare main partition CPU board 54a.

The transmission connector section 114-2 used for the operation test of the spare sub-partition CPU board 56a is similar to the transmission connector section 114-1, and is provided with a branch connection of the power line 93, a test switch 116-2, and a test indicator light 118-2 using an LED, the test switch 116-2 is connected to an input port in the I/O port section 126 provided on the spare sub-partition CPU board 56a, and the test indicator light 118-2 is connected to an output port of the I/O port section 126 provided on the spare sub-partition CPU board 56a.

In addition to the partition control function by the partition control program executed by the CPU 120, the spare main partition CPU board 54a is provided with a test transmission control function that instructs the serial transmission unit 124 to send a test transmission signal to the spare sub-partition CPU board 56a when it detects the input of a test instruction signal by turning on the test switch 116-1, instructs the serial transmission unit 124 to respond by sending a test transmission confirmation signal when it receives a test transmission signal from the spare sub-partition CPU board 56a, and turns on or blinks the test indicator light 118-1 when it receives a test transmission confirmation signal from the spare sub-partition CPU board 56a.

The same is true for the spare sub-partition CPU board 56a, which, in addition to the partition control function by the CPU 120 executing the program, is provided with a test transmission control function that, when it detects the input of a test instruction signal by turning on the test switch 116-2, instructs the serial transmission unit 124 to send a test transmission signal to the spare main partition CPU board 54a, and when it receives a test transmission signal from the spare main partition CPU board 54a, instructs the serial transmission unit 124 to respond by sending a test transmission confirmation signal, and further, when it receives a test transmission confirmation signal from the spare main partition CPU board 54a, turns on or blinks the test indicator light 118-2.

In addition, the test indicator lights 118-1 and 118-2 are lit or flashing when a test transmission signal is being sent, allowing the user to know that the transmission operation is normal.

(Operation test of spare partition CPU board)
During regular inspection of the tunnel disaster prevention system, as shown in Figure 2, an inspector connects the spare main partition CPU board 54a to the transmission connector part 114-1 of the spare board testing part 100 shown in Figure 4, which is provided on the partition rack 52 of the disaster prevention receiving panel 10, and also connects the spare sub-partition CPU board 56a to the transmission connector part 114-2.

In this state, when the test switch 116-1 provided on the transmission connector section 114-1 of the spare main partition CPU board 54a is turned on, a test transmission signal is sent to the spare sub-partition CPU board 56a by the test transmission control function of the CPU 120 of the spare main partition CPU board 54a, and if the transmission is successful, the test indicator light 118-1, for example, flashes, and then, if the spare sub-partition CPU board 56a operates normally, a test transmission confirmation signal is received, and the test indicator light 118-1 of the transmission connector section 114-1, for example, lights up.

Next, when the test switch 116-2 provided on the transmission connector section 114-2 of the spare sub-partition CPU board 56a is turned on, a test transmission signal is sent to the spare main partition CPU board 54a by the test transmission control function of the CPU 120 of the spare sub-partition CPU board 56a, and if the transmission is successful, the test indicator light 118-1, for example, flashes, and then, if the spare main partition CPU board 54a operates normally, a test transmission confirmation signal is received, and the test indicator light 118-2 of the transmission connector section 114-2, for example, lights up.

When a test command issued by operating test switches 116-1 and 116-2 normally transmits data between the spare main partition CPU board 54a and the spare sub-partition CPU board 56a, it can be confirmed that the spare main partition CPU board 54a and the spare sub-partition CPU board 56a are operating normally.

In contrast, if a test command is issued by operating the test switches 116-1, 116-2 but no transmission or response confirmation is indicated by the test indicator lights 118-1, 118-2, it is clear that the spare main partition CPU board 54a and/or the spare sub-partition CPU board 56a is malfunctioning due to a failure or other reason, and the malfunctioning spare partition CPU board can be removed from storage and a new spare partition CPU board can be ordered and delivered.

In addition, if a transmission indication is made on the spare main partition CPU board 54a but a response confirmation indication is not made, it can be determined that the spare sub-partition CPU board 56a is malfunctioning, and on the other hand, if a transmission indication is made on the spare sub-partition CPU board 56a but a response confirmation indication is not made, it can be determined that the spare main partition CPU board 54a is malfunctioning.

[Operational management of spare control CPU board]
(Configuration of spare board testing section)
FIG. 5 is a circuit block diagram showing an embodiment of a spare board testing section for checking the operation of the spare main control CPU board and the spare sub-control CPU board.

As shown in FIG. 5, the spare board testing section 102 provided in the control rack 46 in FIG. 2 is provided with a transmission connector section 130-1 (first transmission connector section) for detachably connecting the spare main control CPU board 48a to the serial transmission paths 76, 78, and a transmission connector section 130-2 (second transmission connector section) for detachably connecting the spare sub-control CPU board 50a.

The spare main control CPU board 48a and the spare sub-control CPU board 50a are provided with a CPU 136, a memory section 138, two serial transmission sections 140, and an I/O port section 142.

The duplicated serial transmission paths 76, 78 are branched and connected to the transmission connector section 130-1, thereby connecting the serial transmission section 140 of the spare main control CPU board 48a to the serial transmission paths 76, 78, and the power lines (not shown) in the serial transmission paths 76, 78 are branched and connected to the transmission connector section 130-1, thereby supplying power to the spare main control CPU board 48a.

The transmission connector section 130-1 is also provided with a test switch 132-1 and a test indicator light 134-1 using an LED. The test switch 132-1 is connected to an input port in the I/O port section 142 provided on the spare main control CPU board 48a, and the test indicator light 134-1 is connected to an output port in the I/O port section 142 provided on the spare main control CPU board 48a.

The transmission connector section 130-2 used for the operation test of the spare sub-control CPU board 50a is similar to the transmission connector section 130-1, and is provided with a test switch 132-2 and a test indicator light 134-2 using an LED.

In addition to the main control function based on the main control program executed by the CPU 136, the spare main control CPU board 48a is provided with a test transmission control function that instructs the serial transmission unit 140 to send a test transmission signal to the spare sub-control CPU board 50a when it detects the input of a test instruction signal by turning on the test switch 132-1, instructs the serial transmission unit 140 to respond by sending a test transmission confirmation signal when it receives a test transmission signal from the spare sub-control CPU board 50a, and further lights or flashes the test indicator light 134-1 when it receives a test transmission confirmation signal from the spare sub-control CPU board 50a.

The same is true for the spare sub-control CPU board 50a, which, in addition to the main control function of the CPU 136 executing the program, has a test transmission control function that, when it detects the input of a test instruction signal by turning on the test switch 132-2, instructs the serial transmission unit 140 to send a test transmission signal to the spare main control CPU board 48a, when it receives a test transmission signal from the spare main control CPU board 48a, instructs the serial transmission unit 140 to respond by sending a test transmission confirmation signal, and further, when it receives a test transmission confirmation signal from the spare main control CPU board 48a, turns on or blinks the test indicator light 134-2.

In addition, the test indicator lights 134-1 and 134-2 are lit or flashing when a test transmission signal is being sent, allowing the user to know that the transmission operation is normal.

(Operation test of spare control CPU board)
During regular inspection of the tunnel disaster prevention system, as shown in Figure 2, an inspector connects the spare main control CPU board 48a to the transmission connector section 130-1 of the spare board testing section 102 shown in Figure 5, which is provided on the control rack 46 of the disaster prevention receiving panel 10, and also connects the spare sub-control CPU board 50a to the transmission connector section 130-2.

In this state, when the test switch 132-1 provided on the transmission connector section 130-1 of the spare main control CPU board 48a is turned on, a test transmission signal is sent to the spare sub-control CPU board 50a by the test transmission control function of the CPU 136 of the spare main control CPU board 48a, and if the signal is sent successfully, the test indicator light 134-1, for example, flashes. Next, if the spare sub-control CPU board 50a is operating normally, a test transmission confirmation signal is received, and the test indicator light 134-1 of the transmission connector section 130-1, for example, lights up.

Next, when the test switch 132-2 provided on the transmission connector section 130-2 of the spare sub-control CPU board 50a is turned on, a test transmission signal is sent to the spare main control CPU board 48a by the test transmission control function of the CPU 136 of the spare sub-control CPU board 50a, and if the signal is sent successfully, the test indicator light 134-2 flashes, for example. Next, if the spare main control CPU board 48a is operating normally, a test transmission confirmation signal is received, and the test indicator light 134-2 of the transmission connector section 130-2 lights up, for example.

When test instructions issued by operating test switches 132-1 and 132-2 in this manner result in normal bidirectional transmission between the spare main control CPU board 48a and the spare sub-control CPU board 50a, it can be confirmed that the spare main control CPU board 48a and the spare sub-control CPU board 50a are operating normally.

In contrast, if a test command is issued by operating the test switches 132-1, 132-2 but no transmission or response confirmation is indicated by the test indicator lights 134-1, 134-2, it is clear that the spare main control CPU board 48a and/or the spare sub-control CPU board 50a is malfunctioning due to a breakdown or the like, and the malfunctioning spare control CPU board can be removed from storage and a new spare control CPU board can be ordered and delivered.

In addition, if the spare main control CPU board 48a displays a transmission but does not display a response confirmation, it can be determined that the spare sub-control CPU board 50a is malfunctioning, and on the other hand, if the spare sub-control CPU board 50a displays a transmission but does not display a response confirmation, it can be determined that the spare main control CPU board 48a is malfunctioning.

[Modifications of the present invention]
(Signal transmission between partition board and partition CPU board)
In the above embodiment, the output of the multiple line receiving units provided on the partition board is connected to each port of the I/O port unit of the partition CPU board by a transmission signal line to transmit the line reception detection signal, but the present invention is not limited to this. For example, a transmission unit may be provided on the partition board and the partition CPU board and connected by a transmission line, the output of the multiple line receiving units may be input to the transmission unit of the partition board, and the line reception detection signal may be transmitted from the transmission unit to the partition CPU board via the transmission line. In this case, the spare board testing unit may detect the output of the transmission unit of the spare partition board with the transmission connector unit and turn on or blink the test indicator light, since the transmission unit outputs a transmission signal when the line receiving unit outputs a line reception detection signal by operating the test switch of the test operation unit.

(Display of test results)
In the above embodiment, the test results of the spare partition board 60a, the spare main/sub partition CPU boards 54a, 56a, and the spare main/sub control CPU boards 48a, 50a are displayed on a display unit provided in the transmission connector section, but the results may also be transmitted to the operation display CPU board 64 and displayed on the display unit 72 via the display control board 70.

(R-type transmission method)
The above embodiment takes as an example the power supply unit of a disaster prevention receiving panel in a tunnel disaster prevention system using a P-type direct transmission method, but for the power supply unit of a disaster prevention receiving panel in a tunnel disaster prevention system using an R-type transmission method, which connects terminal devices such as fire detectors with addresses set to the transmission line and enables individual management by performing detection and control on a terminal device basis through transmission control, a spare board testing unit may be provided as in the above-mentioned embodiment.

(Terminal Equipment)
The above embodiments take fire detectors, manual reporting devices, fire hydrant switches, and water spray switches as examples of terminal equipment connected to the partition board via signal lines, but are not limited to these and can also be applied to cases where the operation of any appropriate terminal equipment related to a fire, such as emergency telephone reporting operations, removal of a fire extinguisher, etc., is connected to the partition board as terminal equipment.

(others)
Furthermore, the present invention includes appropriate modifications that do not impair the objects and advantages of the present invention, and is not limited to the numerical values shown in the above embodiment.

1a: Up line tunnel 1b: Down line tunnel 10: Disaster prevention receiving panel 11, 12, 14: Signal line group 16: Fire detector 18: Fire hydrant device 20: Manual reporting device 22: Fire hydrant switch 23: Automatic valve device 24: Water spray switch 25: Fire pump equipment 28: Ventilation equipment 30: Alarm display board equipment 32: Radio rebroadcast equipment 34: TV monitoring equipment 36: Lighting equipment 38: IG satellite station equipment 40: Network 42: Remote management equipment 46: Control rack 48: Main control CPU board 48a: Spare main control CPU board 50: Sub-control CPU board 50a: Spare sub-control CPU board 52: Partition rack 54: Main partition CPU board 54a: Spare main partition CPU board 56: Sub-partition CPU board 56a: Spare sub-partition CP U boards 60-1 to 60-4: Partition board 60a: Spare partition board 64: Operation display CPU board 66: Operation section 68: Sound section 70: Display control board 72: Display section 74: Serial CPU board 75: Power supply racks 76, 78: Serial transmission paths 80-1 to 86-4: Signal line group 88: CPU board connector 90: Partition board connector 92: Transmission signal line group 93: Power lines 100, 102: Spare board test section 104, 114-1, 114-2, 130-1, 130-2: Transmission connector section 105: Line connector section 106: Test operation section 108, 116-1, 116-2, 132-1, 132-2: Test switch 112: Test display section 118-1, 118-2, 134-1, 134-2: Test indicator light 120, 136: CPU
122, 138: memory section 124, 140: serial transmission section 126, 142: I/O port section

Claims (7)

A disaster prevention receiving panel for a tunnel disaster prevention system that can monitor abnormalities occurring in a tunnel by connecting terminal devices,
The predetermined circuit board provided in the disaster prevention receiving panel is replaceable,
The disaster prevention receiving panel is characterized in that it is equipped with a spare board testing section that can check the operation of a spare board stored to replace the specified circuit board before replacement.
The disaster prevention receiving panel according to claim 1,
An emergency receiving panel, characterized in that the spare board is connected to the spare board testing section via a detachable connector.
The disaster prevention receiving panel according to claim 1,
This disaster prevention receiving panel is characterized in that the spare board can be connected to the spare board testing unit when checking operation, and can be unconnected to the spare board testing unit when not checking operation.
The disaster prevention receiving panel according to claim 1,
The spare board testing unit receives power from the power supply unit of the disaster prevention receiving panel to check the operation of the spare board,
The disaster prevention receiving panel is characterized in that it is possible to maintain the abnormality monitoring function independently of the spare board operation check by the spare board testing section.
The disaster prevention receiving panel according to claim 1,
The disaster prevention receiving panel, wherein the predetermined circuit board includes a partition board for receiving signals from the terminal device.
The disaster prevention receiving panel according to claim 1 or 5,
A disaster prevention receiving panel characterized in that the specified circuit board includes a control board which performs specified control based on a signal received from the terminal device.
7. A tunnel disaster prevention system comprising a disaster prevention receiving panel according to claim 1, connected to a predetermined terminal device, for monitoring abnormalities occurring within a tunnel.