Disaster prevention receiving panel and tunnel disaster prevention system

Abstract

To improve reliability by guaranteeing that a replaced spare board reliably operates when a circuit board of a disaster prevention receiver breaks down.SOLUTION: A disaster prevention system monitors abnormality by connecting terminal apparatuses such as a fire detector 16, a manual notification device 20, a fire hydrant switch 22, and a water spray switch 24 to a disaster prevention receiver 10. A main control CPU board 48, a sub-control CPU board 50, a main section CPU board 54, a sub-section CPU board 56, and section boards 60-1 to 60-4 provided with the disaster prevention receiver 10 are replaceable. The disaster prevention receiver 10 is provided with a spare board testing unit 100 capable of checking operation of a spare board stored to be replaced for these boards before replacement.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a disaster prevention receiving board that connects terminal devices such as fire detectors installed in a monitoring target area to monitor abnormalities in the monitoring target area, and a disaster prevention system equipped with the disaster prevention receiving board. Tunnel relates to a disaster prevention system.

Background Art

[0002] Conventionally, in tunnels such as dedicated roads for automobiles that are monitoring target areas, emergency facilities are installed to protect people and vehicles from fire accidents occurring in the tunnels.

[0003] As such emergency facilities, fire detectors, manual reporting devices, and emergency telephones are provided for fire monitoring and reporting, fire hydrant devices are provided for extinguishing fires and preventing the spread of fire, and water spray facilities that spray fire extinguishing water from water spray heads are installed to protect the tunnel structure from fire. By providing a disaster prevention receiving board that monitors and controls the terminal devices of these emergency facilities, a tunnel disaster prevention system is constructed.

[0004] The tunnel disaster prevention system composed of a disaster prevention receiving board and terminal devices is roughly classified into an R-type transmission method and a P-type direct transmission method. The R-type transmission method connects terminal devices such as fire detectors with addresses set on the transmission line, and enables individual management that performs detection and control for each terminal device by transmission control. The P-type direct transmission method divides into predetermined section units according to the type of terminal device, connects a plurality of terminal devices belonging to the same section to the signal lines drawn out for each section unit, and performs detection and control for each signal line unit.

[0005] When such a tunnel disaster prevention system starts monitoring the inside of the tunnel and vehicle traffic starts after the completion of the tunnel, usually, it is not possible to stop traffic inside the tunnel, so the inside of the tunnel is continuously monitored for 24 hours.

[0006] In addition, when it becomes impossible to monitor inside the tunnel due to maintenance inspections, malfunctions, etc. of the equipment in the emergency facility, monitoring may be carried out by having personnel stand in the monitor passage inside the tunnel, etc., in case of an emergency. For this reason, the disaster prevention receiving panel is made redundant by duplicating the main functions by important circuit boards such as the control board and the section board.

[0007] In addition, in order to enable quick recovery in case the control board or the section board fails, at the stage when the tunnel is completed and operation starts, spare boards such as the control board and the section board are prepared and stored inside the facility.

Prior Art Documents

Patent Documents

[0008]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

Summary of the Invention

Problems to be Solved by the Invention

[0009] However, when spare boards such as the control board and the section board are prepared and stored for dealing with failures of the disaster prevention receiving panel, if the control board and the section board used in the disaster prevention receiving panel malfunction due to aging deterioration, etc. as the operation period becomes long, the stored spare boards may also be deteriorated due to aging, and it is assumed that the malfunctioning circuit board may not function properly even if it is replaced with a spare board, and there is a problem that the reliability of the spare board is not sufficiently ensured.

[0010] The present invention provides a disaster prevention receiving board and a disaster prevention system including the disaster prevention receiving board, which improve reliability by ensuring that a spare board replaced when a circuit board of the disaster prevention receiving board fails operates properly. Tunnel An object of the present invention is to provide a disaster prevention system.

Means for Solving the Problems

[0011] (Disaster prevention receiving board and Tunnel disaster prevention system) The present invention relates to a disaster prevention receiving board and a disaster prevention system including the disaster prevention receiving board, which enable connection of terminal devices to monitor abnormalities occurring in a tunnel. Tunnel The disaster prevention receiving board is characterized in that a predetermined circuit board provided on the disaster prevention receiving board is replaceable, and the disaster prevention receiving board includes a spare board test unit capable of confirming the operation of a spare board stored for replacement with the predetermined circuit board before replacement.

[0012] (Connection part of spare board) The spare board is connected to the spare board test unit via a detachable connector.

[0013] (Connection of spare board) The spare board can be connected to the spare board test unit when its operation is to be confirmed and not connected to the spare board test unit when its operation is not to be confirmed.

[0014] (Test of spare board) The spare board test unit receives power supply from the power supply unit of the disaster prevention receiving board to confirm the operation of the spare board, and the disaster prevention receiving board can maintain an abnormality monitoring function independently of the operation confirmation of the spare board by the spare board test unit.

[0015] (Partition board) The predetermined circuit board includes a partition board that receives signals from terminal devices.

[0016] (Control board) The predetermined circuit board includes a control board that performs predetermined control based on a signal received from the terminal device. Effect of the Invention

[0017] (Basic effect) 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 disaster prevention receiving panel equipped with the disaster prevention receiving panel. Tunnel In a disaster prevention system, a specific circuit board provided in a disaster prevention receiving panel is replaceable, and the disaster prevention receiving panel is equipped with a spare board testing section that can check the operation of a spare board that is stored to replace the specific circuit board before it is replaced. Therefore, by connecting the spare control board or spare partition board, which is the specific circuit board that is stored and managed, to the spare board testing section of the disaster prevention receiving panel and conducting an operation test, for example during periodic maintenance and inspection, it is possible to check whether the circuit boards such as the spare control board and spare partition board are operating normally. If the spare circuit board does not operate normally, a new spare circuit board can be arranged for and stored and managed. By always storing spare circuit boards whose operation has been confirmed, it is possible to quickly respond to malfunctions in the disaster prevention receiving panel and minimize the loss of monitoring function for the monitored area, thereby increasing the reliability of the disaster prevention system.

[0018] In addition, since the spare board testing section is provided in the disaster prevention receiving panel, the functions of the disaster prevention receiving panel, such as the transmission path and power supply, can be utilized as needed. [Brief description of the drawings]

[0019]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0020] [Overview of Tunnel Disaster Prevention System] FIG. 1 is an explanatory diagram showing the overview of a tunnel disaster prevention system, taking the P-type direct transmission method as an example. As shown in FIG. 1, as a tunnel for an exclusive automobile road, an uphill tunnel 1a and a downhill tunnel 1b are constructed, and the uphill tunnel 1a and the downhill tunnel 1b are connected by an evacuation connection shaft 2.

[0021] Inside the uphill tunnel 1a and the downhill tunnel 1b, fire detectors 16 that function as terminal devices are installed along the wall surface in the longitudinal direction of the tunnel at intervals of, for example, 50 meters. The fire detectors 16 set monitoring areas on both sides with a width of 50 meters on the left and right, detect flames caused by a fire, issue a fire alarm, and output a fire detection signal.

[0022] Also, inside the uphill tunnel 1a and the downhill tunnel 1b, a fire hydrant device 18 and an automatic valve device 23 are installed along the wall surface of the monitor passage in the longitudinal direction of the tunnel at intervals of, for example, 50 meters. The fire hydrant device 18 is provided with a manual reporting device 20 and a fire hydrant switch 22 that function as terminal devices.

[0023] The fire hydrant device 18 has a hose with a nozzle stored inside the fire hydrant door. During a fire, open the fire hydrant door, pull out the hose with the nozzle, and open the fire hydrant valve opening / closing lever to discharge the fire extinguishing water. Also, when the fire hydrant valve opening / closing detection switch is turned on, a pump start signal is output to start the fire extinguishing pump.

[0024] In addition, the fire hydrant device 18 is provided with a fire extinguisher door, and a fire extinguisher is stored therein. Further, the fire hydrant device 18 is provided with a water supply tap used by the fire department, and a pump start switch that outputs a pump start signal when operated by a fireman is provided accordingly. The fire hydrant valve opening / closing detection switch and the pump start switch are connected in parallel, and this functions as the illustrated fire hydrant switch 22.

[0025] Furthermore, the fire hydrant device 18 is provided with an alarm device door, and a manual alarm device 20 that functions as a transmitter is provided on the alarm device door. When the manual alarm device 20 is operated, a fire alarm signal is output to the disaster prevention receiving panel 10, and a response lamp is lit by a response signal from the disaster prevention receiving panel 10.

[0026] In addition, inside the uphill tunnel 1a and the downhill tunnel 1b, automatic valve devices 23 of the water spray equipment are installed along the wall surface of the monitor passage in the longitudinal direction of the tunnel at intervals of, for example, 50 meters. The automatic valve device 23 drives the main valve to open by remote opening control of the actuating motorized valve, and discharges fire extinguishing water from a plurality of water spray heads installed longitudinally at the upper part of the tunnel wall surface to protect the tunnel structure from fire. The automatic valve device 23 of the water spray equipment is provided with a water spray switch 24 that detects the start of water spray from the water spray head as a terminal device. The water spray switch 24 uses a pressure switch that turns on by detecting the discharge pressure due to the opening operation of the automatic valve.

[0027] In order to connect terminal devices such as the fire detector 16, the manual alarm device 20, the fire hydrant switch 22, and the water spray switch 24 installed in the tunnel and monitor abnormalities in the tunnel, a disaster prevention receiving panel 10 is installed in a monitoring center or the like.

[0028] From the disaster prevention receiving panel 10, P-type signal line groups 11 and 12 are drawn out into the uphill tunnel 1a and the downhill tunnel 1b, and the fire detector 16, the manual alarm device 20, the fire hydrant switch 22, and the water spray switch 24 installed in the tunnel are connected.

[0029] In this embodiment, the inside of the tunnel is divided into, for example, two groups with a predetermined length, for example, 800 meters as one section. Signal lines individually drawn out for the fire detectors 16 in each group are connected. For the other manual call points 20, fire hydrant switches 22, and water spray switches 24, one section of 800 meters is divided into block sections of, for example, 200 meters, and they are connected to the signal lines drawn out in block section units. In the following description, the case where the tunnel length is divided into two sections with a length of 1600 meters will be taken as an example for explanation.

[0030] Here, the P-type signal line is composed of a signal wire and a common wire. The fire detectors 16, manual call points 20, fire hydrant switches 22, and water spray switches 24 send a fire detection signal, a fire alarm signal, a pump start signal, and a water spray start signal to the disaster prevention receiving panel 10 by passing a line current based on their respective operations.

[0031] Also, power lines are drawn out from the disaster prevention receiving panel 10 to terminal devices such as the fire detectors 16, manual call points 20, fire hydrant switches 22, and water spray switches 24 installed in the tunnel, and for example, DC48V is supplied.

[0032] In addition to these, as emergency facilities in the tunnel, there are provided a fire pump facility 25, a ventilation facility 28, an alarm display board facility 30, a radio rebroadcast facility 32, a TV monitoring facility 34, a lighting facility 36, an IG slave station facility 38, etc. Except that the IG slave station facility 38 is connected by a data transmission line, the other facilities are individually connected to the disaster prevention receiving panel 10 by a group of P-type signal lines 14.

[0033] Here, the IG slave station facility 38 is a communication facility that connects the disaster prevention receiving panel 10 and the remote management facility 42 via the network 40. The ventilation facility 28 is a facility that gives energy to the air in the tunnel by the high blowing wind speed caused by the operation of the jet fans installed on the ceiling side in the tunnel and causes a ventilation flow in the longitudinal direction of the tunnel.

[0034] In addition, the alarm display board facility 30 is a facility that notifies users in the tunnel of the occurrence of a fire or the start of water spraying in the tunnel by displaying it on an electric display board. The radio rebroadcast facility 32 is a facility that enables drivers and others in the tunnel to receive information from the road administrator. The TV monitoring facility 34 is a facility for grasping the situation in the tunnel when confirming the scale and location of a fire, operating the water spraying facility, or guiding evacuation. The lighting facility 36 is a facility that drives and manages the lighting devices in the tunnel.

[0035] [Substrate Configuration of Disaster Prevention Receiver Panel] Figure 2 is a block diagram showing the substrate configuration of the disaster prevention receiver panel together with the terminal line connection. As shown in Figure 2, the disaster prevention receiver panel 10 is provided with a control rack 46 and a partition rack 52. The control rack 46 is provided with a duplicated main control CPU board 48 and a sub-control CPU board 50 that function as main control substrates.

[0036] The main control CPU board 48 and the sub-control CPU board 50 function as a duplicated main control unit. When it discriminates the reception of a fire detection signal from the fire detector 16 or a fire alarm signal from the manual reporting device 20, it performs predetermined fire alarm control. When it discriminates the reception of a pump start signal from the fire hydrant switch 22, it performs start control of the fire pump facility 25. Further, when it discriminates the reception of a water spraying start signal from the water spraying switch 24, it causes the alarm display board facility 30 to perform control such as displaying a warning display of prohibiting entry into the tunnel accompanying the start of water spraying on the electric display board.

[0037] 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. Also, partition boards 60-1 and 60-2 are provided in the partition rack 52 corresponding to the terminal devices in two 800-meter sections of the upstream line tunnel 1a, and partition boards 60-3 and 60-4 are provided corresponding to the terminal devices in two 800-meter sections of the downstream line tunnel 1b. The terminal devices installed in the upstream line tunnel 1a are connected to the partition boards 60-1 and 60-2 by the signal line group 11, and the terminal devices installed in the downstream line tunnel 1b are connected to the partition boards 60-3 and 60-4 by the signal line group 12.

[0038] Note that the partition rack 52 is provided with a P-type output board to which the external fire pump facility 25, ventilation facility 28, alarm display board facility 30, radio rebroadcast facility 32, TV monitoring facility 34, and lighting facility 36 shown in FIG. 1 are connected, but the illustration is omitted.

[0039] From the partition board 60-1, P-type signal line groups 80-1, 82-1, 84-1, and 86-1 are drawn out for 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 upstream line tunnel 1a. The fire detectors 16 are connected in line units, and the manual reporting devices 20, fire hydrant switches 22, and water spray switches 24 are connected in block units.

[0040] From the partition board 60-2, P-type signal line groups 80-2, 82-2, 84-2, and 86-2 are drawn out for 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 upstream line tunnel 1a. The fire detectors 16 are connected in line units, and the manual reporting devices 20, fire hydrant switches 22, and water spray switches 24 are connected in block units.

[0041] Here, since there are 16 fire detectors 16 in one section of 800 meters and the other terminal devices divide 800 meters into 4 blocks of 200 meters each, the signal line groups 80-1 and 80-2 each have 16 lines, the signal line groups 82-1 to 86-2 each have 4 lines, and the signal line group 11 bundles 56 lines.

[0042] Note that a detector test board for sending a test signal by a test signal line that is a cross-wiring for the fire detector 16 is provided in the section rack 52, but the illustration is omitted.

[0043] Line receiving parts are provided on the section boards 60-1 and 60-2 corresponding to the signal lines from the terminal devices. When a line signal from the terminal device is received by the line receiving part, a line reception detection signal is output to the main section CPU board 54 and the sub-section CPU board 56 via the corresponding transmission signal lines of the transmission signal line group 92.

[0044] The section boards 60-3 and 60-4 are provided corresponding to the downlink tunnel 1b and are basically the same as the section boards 60-1 and 60-2 corresponding to the uplink tunnel 1a.

[0045] Here, the transmission signal line group connecting the main section CPU board 54, the sub-section CPU board 56, and the section racks 60-1 to 60-4 includes power lines for supplying power to each board.

[0046] The main section CPU board 54 and the sub-section CPU board 56 are connected to the dual main control CPU board 48 and the sub-control CPU board 50 via dual serial transmission paths 76 and 78 such as RS-485.

[0047] The main section CPU board 54 and the sub-section CPU board 56 function as a dual section control unit. When a line reception detection signal is received from a terminal device installed in the tunnel via the section boards 60-1 and 60-2, a line reception information signal including the type and line number of the terminal device connected to the received signal line is sent to the main control unit dualized by the main control CPU board 48 and the sub-control CPU board 50 to perform predetermined control.

[0048] In addition, an operation display CPU board 64 is provided in the disaster prevention receiver 10, and an operation unit 66 equipped with a touch panel and various operation switches and an acoustic unit 68 equipped with a speaker are connected thereto. At the same time, a display unit 72 equipped with a liquid crystal display and various display lamps is connected via a display control board 70. Furthermore, a serial CPU board 74 is provided in the disaster prevention receiver 10, and the IG slave station equipment 38 shown in FIG. 1 is connected thereto.

[0049] Furthermore, a power supply rack 75 is provided in the disaster prevention receiver 10. The power supply rack 75 inputs AC power by emergency power AC100V and converts it into DC power of a predetermined voltage different for each system, and supplies it to the power lines of the in-board processing system of C5V, the in-board display system of DC12V, the out-of-board transfer report system of DC24V, and the tunnel internal monitoring system of DC48V. Note that a power supply monitoring rack (not shown) is provided in the disaster prevention receiver, and a power supply switching circuit, a voltage monitoring circuit, a storage battery circuit, etc. are provided, and the monitoring control of the power supply unit provided in the power supply rack 75 and the display control of the red display lamp and response lamp provided in the fire hydrant device in the tunnel are performed.

[0050] [Storage and Management of Spare Circuit Boards] When the construction of the tunnel where the tunnel disaster prevention system shown in FIG. 2 is installed is completed and the monitoring inside the tunnel by the disaster prevention receiver 10 is started, as spare boards corresponding to the main control CPU board 48, sub-control CPU board 50, main section CPU board 54, and sub-section CPU board 56 that function as control boards provided in the disaster prevention receiver 10, a spare main control CPU board 48a, a spare sub-control CPU board 50a, a spare main section CPU board 54a, and a spare sub-section CPU board 56a are prepared and stored and managed in the facility. Note that the spare main control CPU board 48a and the spare sub-control CPU board 50a are not shown in the figure.

[0051] In addition, one or more spare section boards 60a are prepared as spare boards corresponding to the section boards 60-1 to 60-4 provided in the disaster prevention receiver 10 and stored and managed in the facility.

[0052] A spare board test unit 100 is provided in the section rack 52 to check the operations of the spare main section CPU board 54a, the spare sub-section CPU board 56a, and the spare section board 60a that are stored and managed in this way. Also, a spare board test unit 102 is provided in the control rack 46 to check the operations of the stored spare main control CPU board 48a and the spare sub-control CPU board 50a.

[0053] The spare board test unit 100 provided in the section rack 52 is provided with transmission connector parts 104, 114-1, and 114-2. During the operation test of the spare section board 60a, as shown by the imaginary line with respect to the spare section board 60a, the test operation unit 106 is connected to the line connector part 105 by the line connector part 105, and the details will be clarified in the following description.

[0054] Also, the main control CPU board 48, the sub-control CPU board 50, the main section CPU board 54, and the sub-section CPU board 56 are detachably provided with respect to the CPU board connector 88, and the section boards 60-1 to 60-4 are detachably provided with respect to the section board connector 90, so that they can be easily exchanged with the spare boards.

[0055] [Operation and Management of Spare Section Boards] (Configuration of Spare Board Test Unit) FIG. 3 is a circuit block diagram showing an embodiment of a spare board test unit for checking the operation of a spare section board.

[0056] As shown in FIG. 3, the spare board test unit 100 provided in the section rack 52 of FIG. 2 is provided with a transmission connector part 104 for detachably connecting the spare section board 60a to the transmission signal line group 92. Also, a test operation unit 106 is detachably provided on the line connection side of the spare section board 60a by a line connector part 105.

[0057] The spare partition board 60a is provided with a plurality of line receiving units 110 corresponding to the terminal devices installed on the tunnel side. A test operation unit 106 connected by a line connector unit 105 to the line connection side of the spare partition board 60a is provided with a test switch 108 corresponding to the line receiving unit 110 of the spare partition board 60a. When the spare partition board 60a is connected by the line connector unit 105, the test switch 108 is input-connected to the line receiving unit 110.

[0058] A power supply line 93 included in the transmission signal line group 92 is branched and connected to the transmission connector unit 104. When the spare partition board 60a is fitted into the transmission connector 104, power is supplied from the power supply line 93 to the spare partition board 60a via the transmission connector unit 104 and it enters an operating state.

[0059] Note that although the transmission connector unit 104 shown in Fig. 2 connects the output of the line receiving unit 110 to the transmission signal line group 92 as shown by the phantom line in Fig. 3, the transmission connector unit 104 for connecting the spare partition board 60a is not provided with a line shown by a phantom line that connects the output of the line receiving unit 110 to the transmission signal line group 92.

[0060] In addition, the transmission connector unit 104 is provided with a test display unit 112. When the spare partition board 60a is connected, the output of the line receiving unit 110 is input-connected to the test display unit 112. When a line reception detection signal is output from any of the plurality of line receiving units 110, the test display unit 112 lights or blinks a test display lamp such as an LED.

[0061] (Operation test of the spare partition board) During the regular inspection of the tunnel disaster prevention system, as shown in Fig. 2, the inspector connects the output side of the stored spare partition board 60a to the transmission connector unit 104 of the spare board test unit 100 shown in Fig. 3 provided in the partition rack 52 of the disaster prevention receiving board 10 for operation confirmation, and also connects the test operation unit 106 to the line connection side of the spare partition board 60a by the line connector unit 105.

[0062] When a spare partition board 60a is connected to the line connector section 105, the spare partition board 60a enters an operating state upon receiving power supply from the power line 93. In this state, the test switches 108 provided in the test operation section 106 are sequentially turned on.

[0063] When the test switch 108 is turned on, it becomes the same state as when the terminal equipment installed in the tunnel outputs a line signal. A pseudo line signal is output to the line receiving section 110 of the spare partition board 60a to which the signal line is connected. When the line receiving section 110 operates normally, a line reception detection signal is output, and a test display section 112 provided in the transmission connector section 104 lights a test display lamp, for example. The inspector can confirm that the spare partition board 60a has operated normally.

[0064] For the operation test of the spare partition board 60a, all the test switches 108 provided in the test operation section 106 are turned on. When the test display lamp is lit by the test display section 112 for all the test switches 108 being turned on, it can be confirmed that the spare partition board 60a operates normally.

[0065] On the other hand, if the display lamp does not light up by the test display section 112 even when the test switch 108 is turned on, it can be understood that the spare partition board 60a is malfunctioning due to a failure or the like. The malfunctioning spare partition board 60a can be removed from the storage target, and corresponding measures such as ordering and receiving a new spare partition board 60a can be taken.

[0066] In the test for confirming the operation of the spare partition board 60a by such a spare board test section 100, power supply is received from the disaster prevention receiving board 10, but there is no cooperation with the circuit section of the disaster prevention receiving board below it. The operation of the spare partition board 60a can be confirmed independently of the tunnel monitoring function of the disaster prevention monitoring board 10 without affecting the tunnel monitoring function of the disaster prevention receiving board 10.

[0067] [Operation Management of Spare Partition CPU Board] (Configuration of Spare Board Test Section) FIG. 4 is a circuit block diagram showing an embodiment of a spare board test unit for checking the operations of a spare main partition CPU board and a spare sub-partition CPU board.

[0068] As shown in FIG. 4, in the spare board test unit 100 provided in the partition rack 52 of FIG. 2, there are provided a transmission connector unit 114-1 (first transmission connector unit) for detachably connecting the spare main partition CPU board 54a to the serial transmission lines 76, 78 and the transmission signal line group 92, and a transmission connector unit 114-2 (second transmission connector unit) for detachably connecting the spare sub-partition CPU board 56a.

[0069] The spare main partition CPU board 54a and the spare sub-partition CPU board 56a are provided with a CPU 120, a memory unit 122, a two-line serial transmission unit 124, and an I / O port unit 126.

[0070] The duplicated serial transmission lines 76, 78 are branched and connected to the transmission connector unit 114-1, whereby the serial transmission lines 76, 78 of the serial transmission unit 124 of the spare main partition CPU board 54a are connected. Further, the transmission connector unit 114-1 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 supply line 93 in the transmission signal line group 92 to supply power to the spare main partition CPU board 54a.

[0071] In addition, the transmission connector unit 114-1 is 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 unit 126 provided on the spare main partition CPU board 54a, and the test indicator light 118-1 is connected to an output port in the I / O port unit 126 provided on the spare main partition CPU board 54a.

[0072] It is used for the operation test of the spare sub-section CPU board 56a, and the transmission connector section 114-2 is the same as the transmission connector section 114-1. The power line 93 is branched and connected, and a test switch 116-2 and a test indicator lamp 118-2 using an LED are provided. The test switch 116-2 is connected to the input port in the I / O port section 126 provided on the spare sub-section CPU board 56a, and the test indicator lamp 118-2 is connected to the output port of the I / O port section 126 provided on the spare sub-section CPU board 56a.

[0073] In addition to the section control function by the section control program executed by the CPU 120, when the spare main-section CPU board 54a detects the input of a test instruction signal by turning on the test switch 116-1, it instructs the serial transmission section 124 to transmit a test transmission signal to the spare sub-section CPU board 56a. When it receives a test transmission signal from the spare sub-section CPU board 56a, it instructs the serial transmission section 124 to transmit a test transmission confirmation signal in response. Furthermore, when it receives a test transmission confirmation signal from the spare sub-section CPU board 56a, it is provided with a test transmission control function to turn on or blink the test indicator lamp 118-1.

[0074] This is the same for the spare sub-section CPU board 56a. In addition to the section control function by the program execution of the CPU 120, when it detects the input of a test instruction signal by turning on the test switch 116-2, it instructs the serial transmission section 124 to transmit a test transmission signal to the spare main-section CPU board 54a. When it receives a test transmission signal from the spare main-section CPU board 54a, it instructs the serial transmission section 124 to transmit a test transmission confirmation signal in response. Furthermore, when it receives a test transmission confirmation signal from the spare main-section CPU board 54a, it is provided with a test transmission control function to turn on or blink the test indicator lamp 118-2.

[0075] Furthermore, the test indicator lamps 118-1 and 118-2 are also turned on or blinked when the test transmission signal is transmitted, so as to indicate that the transmission operation is performed normally.

[0076] (Operation Test of Spare Compartment CPU Board) During the regular inspection of the tunnel disaster prevention system, as shown in Figure 2, the inspector connects the spare main compartment CPU board 54a to the transmission connector part 114-1 of the spare board test part 100 shown in Figure 4 provided in the compartment rack 52 of the disaster prevention receiver panel 10, and also connects the spare sub-compartment CPU board 56a to the transmission connector part 114-2.

[0077] In this state, when the test switch 116-1 provided in the transmission connector part 114-1 of the spare main compartment CPU board 54a is turned on, a test transmission signal is sent to the spare sub-compartment CPU board 56a by the test transmission control function of the CPU 120 of the spare main compartment CPU board 54a. When the signal is transmitted normally, the test display lamp 118-1 blinks, for example. Subsequently, if the spare sub-compartment CPU board 56a operates normally, a test transmission confirmation signal is received, so the test display lamp 118-1 of the transmission connector part 114-1 lights up, for example.

[0078] Next, when the test switch 116-2 provided in the transmission connector part 114-2 of the spare sub-compartment CPU board 56a is turned on, a test transmission signal is sent to the spare main compartment CPU board 54a by the test transmission control function of the CPU 120 of the spare sub-compartment CPU board 56a. When the signal is transmitted normally, the test display lamp 118-1 blinks, for example. Subsequently, if the spare main compartment CPU board 54a operates normally, a test transmission confirmation signal is received, so the test display lamp 118-2 of the transmission connector part 114-2 lights up, for example.

[0079] When normal two-way transmission is carried out between the spare main compartment CPU board 54a and the spare sub-compartment CPU board 56a according to the test instructions by operating the test switches 116-1 and 116-2 in this way, it can be confirmed that the spare main compartment CPU board 54a and the spare sub-compartment CPU board 56a operate normally.

[0080] On the other hand, if the test indication is given by operating the test switches 116-1 and 116-2 but the transmission display and response confirmation display by the test indicator lights 118-1 and 118-2 are not performed, it can be determined that the standby main section CPU board 54a and / or the standby sub-section CPU board 56a is malfunctioning due to a failure or the like. The malfunctioning standby section CPU board can be removed from the storage target, and corresponding measures such as ordering and receiving a new standby section CPU board can be taken.

[0081] Also, if the transmission display is performed on the standby main section CPU board 54a but the response confirmation display is not performed, it can be determined that the standby sub-section CPU board 56a is malfunctioning. On the other hand, if the transmission display is performed on the standby sub-section CPU board 56a but the response confirmation display is not performed, it can be determined that the standby main section CPU board 54a is malfunctioning.

[0082] [Operation and Management of Standby Control CPU Board] (Configuration of Standby Board Test Section) FIG. 5 is a circuit block diagram showing an embodiment of a standby board test section for confirming the operations of the standby main control CPU board and the standby sub-control CPU board.

[0083] As shown in FIG. 5, the standby board test section 102 provided in the control rack 46 of FIG. 2 is provided with a transmission connector section 130-1 (first transmission connector section) for detachably connecting the standby main control CPU board 48a to the serial transmission lines 76 and 78, and a transmission connector section 130-2 (second transmission connector section) for detachably connecting the standby sub-control CPU board 50a.

[0084] The standby main control CPU board 48a and the standby sub-control CPU board 50a are provided with a CPU 136, a memory section 138, a serial transmission section 140 for two lines, and an I / O port section 142.

[0085] In the transmission connector section 130-1, the duplicated serial transmission lines 76 and 78 are branched and connected, whereby the serial transmission section 140 of the standby main control CPU board 48a is connected to the serial transmission lines 76 and 78. Also, in the transmission connector section 130-1, a power line (not shown) among the serial transmission lines 76 and 78 is branched and connected to supply power to the standby main control CPU board 48a.

[0086] In addition, the transmission connector section 130-1 is provided with a test switch 132-1 and a test indicator lamp 134-1 using an LED. The test switch 132-1 is connected to an input port among the I / O port sections 142 provided on the standby main control CPU board 48a, and the test indicator lamp 134-1 is connected to an output port of the I / O port section 142 provided on the standby main control CPU board 48a.

[0087] The transmission connector section 130-2 used for the operation test of the standby sub-control CPU board 50a is the same as the transmission connector section 130-1, and is provided with a test switch 132-2 and a test indicator lamp 134-2 using an LED.

[0088] In addition to the main control function by the main control program executed by the CPU 136, when the standby main control CPU board 48a detects the input of a test instruction signal by turning on the test switch 132-1, it instructs the serial transmission section 140 to transmit a test transmission signal to the standby sub-control CPU board 50a. When receiving a test transmission signal from the standby sub-control CPU board 50a, it instructs the serial transmission section 140 to transmit a test transmission confirmation signal in response. Further, when receiving a test transmission confirmation signal from the standby sub-control CPU board 50a, it is provided with a test transmission control function to turn on or blink the test indicator lamp 134-1.

[0089] This also applies to the standby sub-control CPU board 50a. In addition to the main control function by the program execution of the CPU 136, when a test instruction signal input by turning on the test switch 132-2 is detected, the serial transmission unit 140 is instructed to transmit a test transmission signal to the standby main control CPU board 48a. When a test transmission signal is received from the standby main control CPU board 48a, the serial transmission unit 140 is instructed to transmit a test transmission confirmation signal in response. Furthermore, when a test transmission confirmation signal is received from the standby main control CPU board 48a, a test transmission control function is provided to turn on or blink the test display lamp 134-2.

[0090] Furthermore, the test display lamps 134-1 and 134-2 are turned on or blinked also when the test transmission signal is transmitted, so that it can be understood that the transmission operation is performed normally.

[0091] (Operation test of standby control CPU board) During the regular inspection of the tunnel disaster prevention system, as shown in FIG. 2, the inspector connects the standby main control CPU board 48a to the transmission connector part 130-1 of the standby board test part 102 shown in FIG. 5 provided in the control rack 46 of the disaster prevention receiving board 10, and also connects the standby sub-control CPU board 50a to the transmission connector part 130-2.

[0092] In this state, when the test switch 132-1 provided in the transmission connector part 130-1 of the standby main control CPU board 48a is turned on, a test transmission signal is transmitted to the standby sub-control CPU board 50a by the test transmission control function of the CPU 136 of the standby main control CPU board 48a. When it is transmitted normally, the test display lamp 134-1 blinks, for example. Subsequently, if the standby sub-control CPU board 50a operates normally, a test transmission confirmation signal is received, so that the test display lamp 134-1 at the transmission connector part 130-1 lights up, for example.

[0093] Next, when the test switch 132-2 provided in the transmission connector section 130-2 of the standby sub-control CPU board 50a is turned on, a test transmission signal is sent to the standby main control CPU board 48a by the test transmission control function of the CPU 136 on the standby sub-control CPU board 50a. When the transmission is normal, for example, the test indicator light 134-2 blinks. Subsequently, if the standby main control CPU board 48a operates normally, a test transmission confirmation signal is received, and thus the test indicator light 134-2 in the transmission connector section 130-2 lights up, for example.

[0094] With such a test instruction by operating the test switches 132-1 and 132-2, when normal two-way transmission is performed between the standby main control CPU board 48a and the standby sub-control CPU board 50a, it can be confirmed that the standby main control CPU board 48a and the standby sub-control CPU board 50a operate normally.

[0095] On the contrary, if no transmission indication or response confirmation indication is given by the test indicator lights 134-1 and 134-2 even when a test instruction is given by operating the test switches 132-1 and 132-2, it can be known that the standby main control CPU board 48a and / or the standby sub-control CPU board 50a is malfunctioning due to a failure or the like. The malfunctioning standby control CPU board can be removed from the storage target, and corresponding measures such as ordering and receiving a new standby control CPU board can be taken.

[0096] Also, if a transmission indication is given on the standby main control CPU board 48a but no response confirmation indication is given, it can be determined that the standby sub-control CPU board 50a is malfunctioning. On the other hand, if a transmission indication is given on the standby sub-control CPU board 50a but no response confirmation indication is given, it can be determined that the standby main control CPU board 48a is malfunctioning.

[0097] [Modification Example of the Present Invention] (Signal Transmission between Partition Board and Partition CPU Board) In the above-described embodiment, the outputs of a plurality of line receivers provided on the partitioned substrate are connected to the respective ports of the I / O port section of the partitioned CPU substrate by transmission signal lines to transmit the line reception detection signal, but it is not limited thereto. For example, a transmission section may be provided on the partitioned substrate and the partitioned CPU substrate and connected by a transmission path, the outputs of a plurality of line receivers may be input to the transmission section of the partitioned substrate, and the line reception detection signal may be transmitted from the transmission section to the partitioned CPU substrate via the transmission path. In this case, when the line reception detection signal is output from the line receiver by the operation of the test switch of the test operation section, the preliminary substrate test section may detect the output of the transmission section of the preliminary partitioned substrate at the transmission connector section and turn on or blink the test indicator light.

[0098] (Display of test results) In the above-described embodiment, the test results of the preliminary partitioned substrate 60a, the preliminary main / sub partitioned CPU substrates 54a and 56a, and the preliminary main / sub control CPU substrates 48a and 50a are displayed by the display section provided in the transmission connector section, but they may be transmitted to the operation display CPU substrate 64 and displayed on the display section 72 via the display control substrate 70.

[0099] (R-type transmission method) The above-described embodiment takes the power supply section of the disaster prevention receiver in the P-type direct transmission type tunnel disaster prevention system as an example, but a terminal device such as a fire detector to which an address is set in the transmission line is connected, and individual management capable of performing detection and control for each terminal device by transmission control is possible. For the power supply section of the disaster prevention receiver in the R-type transmission type tunnel disaster prevention system, a preliminary substrate test section may be provided in the same manner as in the above-described embodiment.

[0100] (Terminal device) In the above-described embodiment, as the terminal devices connected to the partitioned substrate by signal lines, a fire detector, a manual reporting device, a fire hydrant switch, and a water spray switch are taken as examples, but it is not limited thereto, and it can also be applied when connecting operations of appropriate terminal devices related to a fire, such as a reporting operation of an emergency phone and taking out a fire extinguisher, to the partitioned substrate as terminal devices.

[0101] (Others) In addition, the present invention includes appropriate modifications that do not impair its objectives and advantages, and is not limited by the numerical values shown in the above embodiments.

Description of Reference Numerals

[0102] 1a: Up-line tunnel 1b: Down-line tunnel 10: Disaster prevention receiving panel 11, 12, 14: Signal line groups 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 facility 28: Ventilation facility 30: Alarm display board facility 32: Radio rebroadcast facility 34: TV monitoring facility 36: Lighting facility 38: IG slave station facility 40: Network 42: Remote management facility 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: Compartment rack 54: Main compartment CPU board 54a: Spare main compartment CPU board 56: Sub-compartment CPU board 56a: Spare sub-compartment CPU board 60-1 to 60-4: Compartment boards 60a: Spare compartment board 64: Operation display CPU board 66: Operation unit 68: Acoustic unit 70: Display control board 72: Display unit 74: Serial CPU board 75: Power rack 76, 78: Serial transmission line 80-1~86-4: Signal line group 88: CPU board connector 90: Compartment board connector 92: Transmission signal line group 93: Power line 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 lamp 120, 136: CPU 122, 138: Memory section 124, 140: Serial transmission section 126, 142: I / O port section

Claims

1. A disaster prevention receiving board for a tunnel disaster prevention system that enables connection of a terminal device and monitoring of abnormalities occurring in a tunnel, wherein a predetermined circuit board provided on the disaster prevention receiving board is replaceable, and the disaster prevention receiving board is characterized by including a spare board test unit capable of confirming the operation of a spare board stored for replacement with the predetermined circuit board before replacement.

2. The disaster prevention receiving board according to Claim 1, wherein the spare board is connected to the spare board test unit via a detachable connector.

3. The disaster prevention receiving board according to Claim 1, wherein the spare board can be connected to the spare board test unit when its operation is to be confirmed and not connected to the spare board test unit when its operation is not to be confirmed.

4. The disaster prevention receiving board according to Claim 1, wherein the spare board test unit receives power supply from a power supply unit of the disaster prevention receiving board to confirm the operation of the spare board, and the disaster prevention receiving board is characterized by being capable of maintaining the abnormality monitoring function independently of the operation confirmation of the spare board by the spare board test unit.

5. The disaster prevention receiving board according to Claim 1, wherein the predetermined circuit board includes a partition board that receives signals from the terminal device.

6. The disaster prevention receiving board according to Claim 1 or 5, wherein the predetermined circuit board includes a control board that performs predetermined control based on signals received from the terminal device.

7. A tunnel disaster prevention system characterized by connecting a predetermined terminal device to the disaster prevention receiving board according to any one of Claims 1 to 6 and monitoring abnormalities occurring in a tunnel.

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