JP2020115382A - Tunnel disaster prevention system - Google Patents

Abstract

To provide a tunnel disaster prevention system that appropriately performs information display associated with current value measurement in a case where functions of a current monitoring device are provided integrally on a disaster prevention receiving panel without impairing a display function of original disaster prevention monitoring.SOLUTION: In the tunnel disaster prevention system, a main monitor device 44 is provided on a front surface of a panel door of a disaster prevention receiving panel 10, and a sub monitor device 46 is provided inside the disaster prevention receiving panel 10. A monitor control unit 56 of the disaster prevention receiving panel 10 receives a fire signal to output a fire alarm, and detects a failure of a signal line to output a failure alarm. A current monitoring unit 58 integrated with the disaster prevention receiving panel 10 measures the value of current flowing in the signal line, and determines a current value abnormality to store it as a measurement history. In a case where a predetermined history display operation is detected, the current monitoring unit extracts a measurement history of a fire line in which a fire notified by the monitor control unit 56 has been received or a failure line in which a failure has been detected from the stored measurement history for screen display on the sub monitor 46.SELECTED DRAWING: Figure 4

Description

TECHNICAL FIELD The present invention relates to a tunnel disaster prevention system for connecting a terminal device such as a notification device or a detector installed in a tunnel to a disaster prevention reception board to monitor an abnormality in the tunnel.

2. Description of the Related Art Conventionally, an emergency facility is installed in a tunnel such as a road for automobiles in order to protect people and vehicles from a fire accident that occurs in the tunnel.

As such an emergency facility, a fire detector, a manual notification device, and an emergency telephone are installed to monitor and report a fire, and a fire hydrant device is installed to extinguish the fire and prevent the spread of fire. In order to protect the inside of the duct from fire, water spray equipment for spraying fire extinguishing water from the water spray head is installed, and by installing a disaster prevention reception board that monitors and controls the terminal equipment of these emergency facilities, a tunnel disaster prevention system can be created. I'm building.

Tunnel disaster prevention systems consisting of disaster prevention receivers and terminal devices are roughly divided into R type transmission systems and P type direct transmission systems. The R-type transmission system enables individual management by connecting a terminal device such as a fire detector whose address is set to a transmission line and performing detection and control for each terminal device by transmission control. The P-type direct delivery system divides into predetermined partition units according to the type of the terminal device, connects a plurality of terminal devices belonging to the same partition to the signal line drawn out in the partition unit, and performs detection and control in the signal line unit.

By the way, in a P-type direct delivery type tunnel disaster prevention system, terminal devices such as a manual notification device, a fire hydrant activation device, and a duct temperature detector are configured with a signal output part by operation or detection as a non-voltage a contact switch, A non-voltage a-contact switch is connected to the signal line drawn from the disaster prevention reception board. The non-voltage a-contact switch is normally off in the monitoring state, and is turned on by an operation or a detection operation to output a non-voltage contact signal.

Specifically, the power supply voltage is applied from the disaster prevention receiver board to one of the signal lines via a pull-up resistor, and in the steady monitoring state in which the no-voltage a-contact switch is turned off, most current consumption flows in the signal line. However, the power supply voltage between the signal lines as seen from the disaster prevention reception board is maintained at approximately the power supply voltage. When the non-voltage a-contact switch is turned on, current flows through the signal line, the voltage between the signal lines as seen from the disaster prevention receiver panel drops to approximately zero volt, and the disaster prevention receiver panel increases the current consumption of the signal line or between the signal lines. A voltage drop is detected and a reception signal indicating the operation or detection of the terminal device is output to the control unit.

For example, in the case of a fire alarm signal from a manual alarm device, the disaster prevention reception panel performs control operations such as fire display, lighting control of the response lamp on the terminal side, manual alarm partition display, and output of the fire pump activation signal, as well as remote monitoring. Fire control signals are transmitted to external equipment such as control equipment, television monitoring equipment, variable road information board equipment, tunnel ventilation equipment, and lighting equipment to perform predetermined coping control.

JP-A-2002-246962 JP, 11-128381, A

In such a conventional P-type direct transmission tunnel disaster prevention system, insulation deterioration is advanced due to aging of the signal line (external cable) connecting the terminal equipment, and the signal line connecting the terminal equipment In the normal monitoring condition, more current than expected flows, and the disaster prevention reception panel determines that the signal has been received by operating or detecting the terminal device, and performs an alarm operation, as well as remote monitoring control equipment, TV monitoring equipment, and variable roads. It is often the case that other equipment such as information board equipment, tunnel ventilation equipment, and lighting equipment are interlocked with each other to block the tunnel.

In order to solve this problem, a current monitoring device is provided in a housing separate from the disaster prevention reception panel, and the current flowing through the signal line connected to the terminal device provided with the non-voltage a-contact switch is, for example, once a day. Is periodically measured and recorded, and when the measured current exceeds a predetermined threshold value, an abnormal current value of the signal line is determined and an alarm is issued.

By the way, if a fire alarm signal is output by the fire prevention reception board and a fire alarm is output, or if a fault in the signal line is detected and a fault alarm is output, the fire alarm signal will be output during the subsequent investigation work. There is a case where the fire history line or the fault line where the fault is detected may be displayed with the measurement history measured by the current monitoring device to check the state of the fire line or the fault line.

However, in order to check the measurement history of the current value of the fire circuit or the fault circuit, it is necessary to display the measurement history of the current value on the monitor device and search for the fire circuit or the fault circuit while switching pages or scrolling. Since the measurement history is generated by the fixed-cycle measurement once a day, the amount of data of the measurement history becomes enormous, and it is difficult to find the measurement history of the fire line or the faulty line out of it, which is troublesome for the investigation. There is a problem that it takes time.

In addition, since a current monitoring device has been installed in a separate housing for the disaster prevention reception panel, transmission and processing functions that send fire information and failure information from the disaster prevention reception panel to the current measurement device and store it together with the measurement history However, there is also a problem that the equipment configuration and processing become complicated.

INDUSTRIAL APPLICABILITY The present invention integrates the function of a current monitoring device into a disaster prevention reception panel to simplify the equipment configuration and processing, and to simplify the measurement history of the current value of a signal line that receives a fire signal or a signal line that has detected a failure. The purpose is to provide a tunnel disaster prevention system that enables easy investigation.

(Tunnel disaster prevention system)
The present invention is a tunnel disaster prevention system,
Disaster prevention reception board,
A terminal device that outputs a predetermined signal regarding the fire to the disaster prevention reception panel via the signal line in the event of a fire,
A current monitoring unit that determines a current value abnormality based on the current value flowing in the signal line and stores the determination result as a history;
Is provided.

(History display of abnormal current value)
The current monitoring unit extracts at least the determination result of the signal line determined to have an abnormal current value from the stored history and displays it on the screen of the disaster prevention reception board.

(History display including current value measurement results)
The current monitoring unit measures the current value flowing in the signal line and stores the measurement result in the history, and at least extracts the measurement result of the current value of the signal line in which the abnormal current value is determined from the stored history. And display it on the screen of the disaster prevention reception board.

(History display by narrowing down condition)
The current monitoring unit extracts the determination result of the current value abnormality of the signal line and/or the measurement result of the current value according to the predetermined narrowing condition from the stored history and displays it on the screen of the disaster prevention receiver board.

(Manual measurement of current value)
The current monitoring unit receives a predetermined manual measurement operation targeting an arbitrary signal line from the plurality of signal lines, measures the current value flowing through the target signal line, and sets the measured current value to the measured current value. The current value abnormality is determined based on the determination result, and the current value abnormality determination result and/or the current value measurement result is displayed on the screen of the disaster prevention receiver board.

(History display of fire line or fault line)
The current monitoring unit receives a predetermined history display operation for a signal line that has received a predetermined signal related to fire or a signal line that has a predetermined failure, and the result of determination of the abnormal current value of the target signal line And/or the measurement result of the current value is extracted from the stored history and displayed on the screen of the disaster prevention reception board.

(Basic effect)
The present invention is a tunnel disaster prevention system, which includes a disaster prevention reception panel, a terminal device that outputs a predetermined signal related to the fire to the disaster prevention reception panel via a signal line in the event of a fire, and a current value based on the current value flowing through the signal line. A current monitoring unit that determines an abnormality and stores the determination result as a history is provided, and the current monitoring unit extracts at least the determination result of the signal line determined to be the current value abnormality from the stored history. The current value is displayed on the screen of the disaster prevention receiver, and the current monitoring unit measures the current value flowing in the signal line and stores the measurement result in the history, and at least the current value of the signal line where the current value abnormality is judged. Since the measurement result of is extracted from the stored history and displayed on the screen of the disaster prevention reception board, when a fire alarm is output from the disaster prevention reception board or a failure warning of the signal line is output, When the history display operation of the fire line or the fault line is performed, the fire line or fault line of the fire line or fault line is selected from the measurement history stored at that time based on the line number of the fire line or fault line detected by the disaster prevention monitoring control unit. The measurement history is extracted and displayed on the screen of the disaster prevention reception panel, and it is no longer necessary to find out the measurement history of the fire line or the fault line from the huge measurement history, and you can see what the fire line or fault line was like. You can easily and easily check the current measurement history of the extracted fire line or fault line on the screen of the disaster prevention reception board, and see what kind of signal line has received the fire or has detected the fault. It is possible to make an appropriate judgment as to whether or not there is a condition.

(Effect of history display by narrowing down conditions)
Further, the current monitoring unit extracts the determination result of the current value abnormality of the signal line and/or the measurement result of the current value according to the predetermined narrowing condition from the stored history and displays it on the screen of the disaster prevention receiver board. Therefore, by specifying systems such as up and down lines, manual notification devices, fire hydrants, ducts, and partition numbers as narrowing conditions, the specific measurement history required can be extracted from the huge measurement history. Therefore, it is possible to efficiently determine a specific line deterioration state based on the measurement record.
It

(Effect of manual measurement of current value)
In addition, the current monitoring unit receives a predetermined manual measurement operation for an arbitrary signal line from the plurality of signal lines, measures the current value flowing in the targeted signal line, and measures the measured current. Since the abnormal current value is judged based on the value and the judgment result of the abnormal current value and/or the measured result of the current value is displayed on the screen of the disaster prevention reception panel, for example, a failure such as a signal line or disconnection of a fire received. For the signal line in which the signal was detected, the state of the insulation deterioration of the signal line in which a fire was received or the signal line in which a failure was detected was measured by performing a manual measurement for that signal line. It becomes possible to judge by looking at the display.

(Effect of displaying the history of abnormalities corresponding to the fire reception line or the faulty line)
In addition, the current monitoring unit receives a predetermined history display operation for a signal line that receives a predetermined signal related to fire or a signal line where a predetermined failure has occurred, and detects a current value abnormality of the target signal line. The judgment result and/or current value measurement result is extracted from the stored history and displayed on the screen of the disaster prevention receiver board. The history of the fire circuit or fault circuit determined to be extracted is displayed and displayed, and what was the progress of insulation deterioration due to the abnormal current value of the signal circuit that received the fire or the signal circuit that detected the fault? Can be easily and easily examined.

Explanatory diagram showing the outline of the tunnel disaster prevention system Explanatory diagram showing the appearance of the disaster prevention reception board Explanatory drawing showing the state of opening the panel door of the disaster prevention reception board and looking at the sub monitor device Block diagram showing the outline of the functional configuration of the tunnel disaster prevention system Explanatory drawing showing the automatic measurement screen of the sub monitor device used for automatic measurement Explanatory drawing showing the manual measurement screen of the sub monitor device used for manual measurement Explanatory diagram showing the measurement record screen of the sub-monitor device displaying the measurement history of the current value Explanatory drawing which showed the measurement record narrowing-down screen extracted from the measurement recording scene of FIG. Explanatory diagram showing the abnormality history screen of the sub monitor device displaying the abnormality history of the current value Explanatory diagram showing the fire line history screen of the sub monitor device that displays the fire line measurement history Explanatory drawing showing the fire failure line history screen of the sub monitor device displaying the measurement history of the failure line Flowchart showing current monitoring control by the current monitoring unit of the disaster prevention reception board

[Overview of tunnel disaster prevention system]
FIG. 1 is an explanatory diagram showing an outline of a tunnel disaster prevention system. As shown in FIG. 1, an up tunnel 1 a and a down tunnel 1 b are constructed as a tunnel for an automobile road, and the up tunnel 1 a and the down tunnel 1 b are connected by an evacuation contact pit 2.

Inside the ascending line tunnel 1a and the descending line tunnel 1b, fire hydrant devices 18 are installed, for example, at intervals of 50 meters along the wall surface of the observer passage in the tunnel longitudinal direction.

The fire hydrant device 18 stores a hose with a nozzle in the fire hydrant door. When a fire occurs, open the fire hydrant door and pull out the hose with a nozzle. The switch 14 is turned on to start the fire pump.

Further, the fire hydrant device 18 is provided with a notification device door, and the notification device door is provided with a manual notification device (transmitter) 16. As described above, the fire hydrant device 18 is provided with the fire hydrant valve opening/closing detection switch 14 and the manual notification device 16 as terminal devices, and when the non-voltage a contact switch that functions as contact means is turned on, a pump start signal or a fire is generated. Output a notification signal.

Although the fire hydrant device 18 is provided with a pump activation switch used by the fire brigade, since it is the same system switch that outputs the same pump activation signal as the fire hydrant valve opening/closing detection switch 14, It will be described as a fire hydrant valve opening/closing detection switch (including a pump start switch) 14. In addition to the fire hydrant device 18, the manual notification device 16 is also installed in the emergency telephone box, but in the following description, the manual notification device provided in the fire hydrant device 18 will be described as a representative.

In addition to the fire hydrant device 18, a fire detector, an automatic valve device, a duct temperature detector, etc. are provided as the tunnel emergency equipment, but they are not shown.

Fire detectors are installed, for example, at intervals of 25 meters or 50 meters along the wall in the longitudinal direction of the tunnel, and monitoring areas are set on both sides that are 25 meters or 50 meters on the left and right sides to detect flames from a fire and report a fire. ..

The automatic valve device constitutes water spray equipment.The main valve is driven to open by the remote opening control of the motor-operated valve for operation, and fire extinguishing water is discharged from multiple water spray heads installed in the longitudinal direction above the wall surface of the tunnel. Protect the tunnel frame from fire.

The duct internal temperature detector is located in the duct where the pipes and cables are laid inside the observer passage in the longitudinal direction of the tunnel, and detects the temperature rise in the duct due to a cable fire, etc., and acts as a contactless means. When the a-contact switch is turned on, a temperature detection signal is output.

A disaster prevention reception board 10 is installed at a monitoring center or the like of the up tunnel 1a and the down tunnel 1b. In addition to the disaster prevention monitoring function of the up tunnel 1a and the down tunnel 1b, the disaster prevention receiver panel 10 is provided with a current monitoring function of monitoring the current of the P-type signal line connected to the terminal device.

P-type signal lines 12-1 to 12-n are drawn out from the disaster prevention receiver board 10 into the up tunnel 1a and the down tunnel 1b for each predetermined section divided in the tunnel longitudinal direction, and are provided for each section. The plurality of fire hydrant valve open/close detection switches 14 and the manual notification device 16 are connected.

A P-type signal line is also drawn out in units of sections to the in-duct temperature detector installed in the duct, and a plurality of in-duct temperature sensors provided in each unit are connected. However, the illustration is omitted. Further, the signal lines 12-1 to 12-n may be referred to as the signal line 12 when there is no need to distinguish them.

The P-type signal line 12 is composed of a signal line and a common line, and is connected to the fire hydrant valve opening/closing detection switch 14 of the fire hydrant device 18, the manual notification device 16, and the non-voltage a contact switch provided in each of the duct temperature detectors. In this case, a pump start signal, a fire alarm signal, and a temperature detection signal are sent to the disaster prevention receiver board 10 by turning on the non-voltage a contact switch by each operation or detection operation to flow a line current.

In addition to the fire hydrant device 18, the fire detector, and the automatic valve device, the emergency facilities of the tunnel include the fire extinguishing pump facility 20, the cooling pump facility 22 for the duct, the IG slave station facility 24, the ventilation facility 28, and the alarm display board facility. 30, a radio rebroadcast facility 32, a television monitoring facility 34, a lighting facility 36, etc. are provided, and except for the point that the IG slave station facility 24 is connected by a data transmission line, other facilities are disaster-proof by a P-type signal line. It is individually connected to the receiving board 10. Here, the IG slave station equipment 24 is a communication equipment that connects the disaster prevention reception board 10 and a remote supervisory control equipment 26, which is an upper equipment provided outside, via the network 25.

The ventilation facility 28 is a facility that gives energy to the air in the tunnel by a high blowing wind speed due to the operation of a jet fan installed on the ceiling side in the tunnel, and causes a stimulating flow in the longitudinal direction of the tunnel.

Further, the alarm display board facility 30 is equipment that informs a user in the tunnel of an abnormality in the tunnel by displaying it on an electronic display board. The radio rebroadcast facility 32 is a facility for allowing a driver or the like to receive information from a road administrator in a tunnel. The TV monitoring facility 34 is a facility for confirming the scale and position of a fire, operating the water spray facility, and grasping the situation in the tunnel when guiding evacuation. The lighting equipment 36 is equipment for driving and managing the lighting equipment in the tunnel.

[Disaster prevention receiver monitor device]
2A and 2B are explanatory views showing the external appearance of the disaster prevention reception board. FIG. 2A shows the front surface and FIG. 2B shows the side surface. FIG. 3 is an explanatory view showing a state in which the panel door of the disaster prevention reception panel is opened and the sub monitor device is viewed.

As shown in FIG. 2, the disaster prevention reception panel 10 has a box-shaped casing 60 that is open at the front and back, and a panel door 62 that can be opened and closed by operating a handle is provided on the front face of the casing 60. A back door 63 that can be opened and closed by a bundle operation is provided.

A main monitor device 44 using a liquid crystal display with a touch panel is installed on the front side of the panel door 62, and an operation display unit 64 is arranged below the main monitor device 44. On the screen of the main monitor device 44, predetermined information regarding tunnel disaster prevention monitoring is displayed.

Inside the housing 60, a sub monitor device 46 using a liquid crystal display with a touch panel is arranged. On the screen of the sub monitor device 46, the measurement result and the determination result of the current value by the current monitoring of the signal line are displayed.

As shown in FIG. 3, when the panel door 62 of the disaster prevention reception panel 10 is opened, the sub monitor device 46 arranged in the support frame 68 appears in the housing 60, and the current value of the signal line is measured on the screen of the sub monitor device 46. The result and the judgment result can be displayed.

[Structure of disaster prevention receiver panel]
FIG. 4 is a block diagram showing an outline of the functional configuration of the tunnel disaster prevention system. As shown in FIG. 4, the disaster prevention reception board 10 includes a control unit 40, which has a function realized by executing a program, for example, and has various types of hardware including a CPU, a memory, and an AD conversion port. A computer circuit having an output port or the like is used.

The control unit 40 is provided with a P-type transmission unit 42 in which various terminal devices installed in the tunnel are connected by the P-type signal line 12, and the control unit 40 is provided with a main monitor device 44 and a sub-monitor device. 46, a speaker, a buzzer, an alarm unit 48 including an alarm indicator light, a display unit 50 including various indicator lights, an operation unit 52 including various switches, and further, an IG slave station facility 24, a ventilation facility 28, A P type transmission unit 54 is provided in which the alarm display board facility 30, the radio rebroadcast facility 32, the television monitoring facility 34, the lighting facility 36, the fire pump facility 20 and the cooling pump facility 22 are individually connected by a P type signal line. There is.

The control unit 40 is provided with the functions of the monitoring control unit 56 and the current monitoring unit 58 as the functions realized by executing the program.

(Monitoring control unit)
The monitoring control unit 56 detects from the fire hydrant valve opening/closing detection switch 14 provided in the fire hydrant device 18 installed in the tunnel, the manual notification device 16, the fire detector, the duct temperature detector, and the terminal device such as the automatic valve device. Predetermined monitoring and control is performed based on signals and operation signals.

In addition, for example, when the monitoring control unit 56 receives a fire notification signal (fire signal) due to the operation of the manual notification device 16 provided in the fire hydrant device 18, the monitoring unit 56 causes the alarm unit 48 to ring the main sound and the display unit 50 displays a fire representative. The display is made, and further, the fire display and the manual notification section display are made on the screen of the main monitor device 44, and the response signal is transmitted to the fire hydrant device 18 to turn on the response lamp.

In addition, when the monitoring control unit 56 receives the pump activation signal output by turning on the fire hydrant valve opening/closing detection switch 14 by the opening operation of the fire hydrant valve opening/closing lever provided in the fire hydrant device 18, the fire activating pump equipment 20 starts the pump. Controls to send a signal to start.

Further, the monitoring control unit 56 controls the other equipment by transmitting a fire notification signal to the distant monitoring control equipment 26 via the IG slave station equipment 24 to issue an alarm, and the TV monitoring equipment 34 displays the fire notification section. The alarm display board facility 30 controls the display of a fire report in the manual reporting section, the ventilation system 28 controls the ventilation of the manual reporting section, and the lighting system 36 controls the illumination of the manual reporting section. The monitoring control unit 56 also controls the current monitoring unit 58 to notify the line number of the fire line.

Further, when the duct internal temperature rises and the duct internal temperature detection signal is received from the duct internal temperature detector, the monitoring control unit 56 outputs a pump start signal to the cooling pump facility 22, and the head installed in the duct outputs the pump activation signal. Controls to cool the inside of the duct by sprinkling water.

Further, the monitoring control unit 56 monitors the disconnection failure of the signal line 12, and when detecting the disconnection failure, the alarm unit 48 sounds the failure sound and simultaneously displays the failure representative on the display unit 50, and the main monitor device 44. A fault display and a fault area display are displayed on the screen, and control is performed to notify the current monitoring unit 58 of the line number of the fault line.

In the monitoring of the disconnection failure of the signal line 12 by the monitoring control unit 56, a disconnection monitoring current is supplied by connecting a terminating resistor to the end of the signal line 12, and the disconnection failure is detected when the disconnection monitoring current is interrupted.

(Current monitor)
The current monitoring unit 58 measures the current value of the signal line 12 connected to the terminal device including the non-voltage a contact switch including the fire hydrant valve opening/closing detection switch 14 and the manual notification device 16, and the measured current value is a predetermined upper limit. When the current value is out of the threshold range determined by the value and the lower limit value, the current value is determined to be abnormal, and the measurement result is stored as a measurement history in a memory using a removable memory card. The current value of the signal line 12 is measured by the current monitoring unit 58, for example, the detected voltage of the current detection resistor inserted in the signal line 12 is AD-converted and read to remove the influence of noise. Calculate the average value of.

Here, the current value measurement by the current monitoring unit 58 includes fixed cycle measurement, automatic measurement, and manual measurement. The constant-cycle measurement of the current monitoring unit 58 sequentially measures the current values of all the signal lines 12 at a predetermined cycle, for example, once a day. When the measured current value is out of the predetermined threshold range, the current is measured. A control is performed to determine a value abnormality and store the measurement result in the memory as a measurement history.

In the automatic measurement of the current value by the current monitoring unit 58, when the automatic measurement operation by the sub monitor device 46 is detected, the current values flowing in all the signal lines 12 are sequentially measured, and the measured current value is out of the predetermined threshold range. If the current value is abnormal, it is determined that the measurement result is displayed on the sub monitor device 46 on the screen.

In the manual measurement of the current value by the current monitoring unit 58, when the manual measurement operation including the selection of the signal line by the sub monitor device 46 is detected, the current value flowing through the selected signal line is measured, and the measured current value is predetermined. If the current value is out of the threshold range, the current value is determined to be abnormal, and the measurement result is displayed on the sub monitor device 46 on the screen.

In addition, when the measurement history display operation by the sub monitor device 46 is detected, the current monitoring unit 58 controls the sub monitor device 46 to display the measurement history of the current value stored in the memory on the screen.

In addition, when the current monitoring unit 58 detects a fire history display operation or a failure history display operation for the fire line or the fault line by the sub-monitor device 46, the current monitor unit 58 monitors from the measurement history of the current value stored in the memory. The control unit 56 controls to extract the measurement history corresponding to the line number of the fire line or the fault line notified by the control unit 56 and display it on the screen of the sub monitor device 46.

Further, when the current monitoring unit 58 detects an abnormality history display operation by the sub monitor device 46, the current monitoring unit 58 extracts the measurement history in which the current value abnormality is determined from the current value measurement history stored in the memory to extract the sub monitor device 46. Control the screen display in time series.

Further, when the current monitoring unit 58 detects an abnormality history display operation for the fire line or the fault line by the sub monitor device 46, the current value abnormality is determined from the current value measurement history stored in the memory. In addition, control is performed to extract the measurement history corresponding to the line number of the fire line or the faulty line notified by the monitoring control unit 56 and display the measurement history on the sub monitor device 46 in time series.

[Periodic measurement of current value]
FIG. 5 is an explanatory diagram showing an automatic measurement screen of a sub monitor device used for automatic measurement.
The sub-monitor screen 70 shown in FIG. 5 has an automatic measurement button 72, a manual measurement button 74, a measurement record button 76, an abnormality history button 78, a fire history button 80, and a failure history button 82 as screen expansion buttons on the lower side of the screen. When the automatic measurement button 72 is operated as indicated by hatching, the screen switches to the automatic measurement screen 84.

On the upper right part of the sub-monitor screen 70, an ON button 88 and an OFF button 90 are arranged as a fixed cycle measurement, and the ON button 88 is set to an ON state as an initial setting. The current value of all the signal lines 12 is sequentially measured at every cycle, for example, once a day, and when the measured current value is out of the predetermined threshold range, the current value is judged to be abnormal and the measurement result is measured history. As a result, the fixed cycle measurement is performed, which is stored in the memory.

When performing automatic measurement of the current value using the sub-monitor screen 70 switched to the automatic measurement screen 84 of FIG. 5, first, the off button 90 arranged in the periodic measurement at the upper right is operated to perform the periodic measurement. To release. Subsequently, for example, “uplink manual notification” in the type selection unit 86 is selected as a test target, and the start button 92 arranged for automatic measurement is operated. The buttons operated on the screen are shown by hatching.

The automatic measurement operation of the current value using the sub monitor screen 70 is detected by the current monitoring unit 58, and the current values of all the signal lines for the manual reporting device arranged in the selected upstream tunnel are sequentially measured, and the detailed measurement information is displayed. At 104, the measured value is displayed. Also, for each automatic measurement of the signal line, the measured value is displayed in the lower right measured value frame 96, and the measured time is displayed in the measured time frame 98. Further, during the automatic measurement, the during-measurement display 100 on the upper left of the screen changes to inform that the automatic measurement is being performed.

In the center of the automatic measurement screen 84, the automatic measurement detailed information 104 is displayed as a list of information for each signal line divided into each item of line number, upper limit value, lower limit value and measured value.

Here, in the case of the line number 004, the measured value is 1.25 mA, and since the current value exceeds the upper limit value of 1.00 mA, it is determined that the current value is abnormal and the display of the line number 004 changes as shown by hatching. Then, the current value abnormality is notified, and the current abnormal value occurrence display 102 changes to notify the occurrence of the current value abnormality.

The automatic measurement of the current value can be ended by operating the stop switch 94. Note that the measurement result of the automatic measurement may be stored in the memory as history information when the automatic measurement ends.

Further, when the automatic measurement of the current value is finished, the ON switch 88 for the constant cycle measurement is operated to return to the constant cycle measurement of the current value.

[Manual measurement of current value]
FIG. 6 is an explanatory diagram showing a manual measurement screen of the sub monitor device used for manual measurement. As shown in FIG. 6, when the manual measurement button 74 arranged below the sub monitor screen 70 is operated, the screen is switched to the illustrated manual measurement screen 106.

When performing the manual measurement of the current value using the sub monitor screen 70 switched to the manual measurement screen 106, first, the off button 90 arranged in the upper right fixed cycle measurement is operated to cancel the fixed cycle measurement. .. Subsequently, for example, "uplink manual notification" in the type selection unit 86 is selected as a test target, and further, a signal line to be measured is selected by operating the selection buttons 108 and 110 arranged for manual measurement. ..

Here, the display of the line number 004 indicated by hatching in the line number of the measurement detailed information 116 is changed to indicate the currently selected line. When the select buttons 108 and 110 are operated, the change of the line number is changed up or down. You can move to and select any line number. When the line number can be selected, the start button 112 arranged in the manual measurement is operated.

The manual operation of measuring the current value using the sub-monitor screen 70 is detected by the current monitoring unit 58, and the current value of the signal line of the line number 004 for the manual reporting device arranged in the upstream tunnel is measured and manually measured. The measurement value is displayed in the detailed information 116. Further, when the manual measurement is started, the during-measurement display 100 changes to inform that the manual measurement is being performed.

Here, the measured value of the line number 004 for which the manual measurement was performed is 1.25 mA, and since it exceeds the upper limit value of 1.00 mA, it is determined that the current value is abnormal and the display of the line number 004 is hatched. In addition, the current value abnormality occurrence display 102 changes to indicate that the current value abnormality is determined.

When it is desired to finish the manual measurement of the current value, the manual measurement stop switch 114 is operated, and then the constant cycle measurement ON switch 88 is operated, whereby the current value can be returned to the constant cycle measurement. Incidentally, the measurement result of the manual measurement may be stored in the memory as history information when the manual measurement is completed.

[Measurement history display]
FIG. 7 is an explanatory view showing a measurement record screen of the sub monitor device displaying the measurement history of the current value. As shown in FIG. 7, when the measurement record button 76 arranged on the lower side of the sub monitor screen 70 is operated, the measurement record screen 118 shown in FIG. 7 is displayed and the measurement history detailed information 120 shows the measurement history read from the memory. Is displayed.

On the right side of the measurement recording screen 118, a page display 122, page switching buttons 124 and 126, a file save button 128, a memory extraction button 130, and a line selection button 131 are arranged. The page of the measurement history detailed information 120 can be switched by operating the page switching buttons 126 and 128. The file save button 128 gives an instruction to store the measurement result in the memory. The memory take-out button 130 is operated when taking out the memory storing the current value measurement information from the disaster prevention receiver 10.

The measurement history detailed information 120 displayed in the center of the measurement record screen 118 is divided into each item of No. of line number, date and time, item, upper limit value/lower limit value, measured value and judgment, and for each signal line. Lists information. Here, in the line number 004, the measured value is 1.25 mA and exceeds the upper limit value of 1.00 mA, so that the current value is determined to be abnormal by the display of “NG”. Since the measured values of the other line numbers are within the range of the upper limit value and the lower limit value, it is determined to be normal by the display of "OK".

[Display measurement records narrowed down]
FIG. 8 is an explanatory diagram showing a measurement record narrowing-down screen extracted from the measurement recording scene of FIG. 7.

When the line selection button 131 is operated on the measurement recording screen 118 of FIG. 7, the display is switched to the measurement recording narrowing screen 150 of FIG. The measurement record narrowing screen 156 is provided with a system selection unit 152, a device selection unit 154, a section selection unit 156, a confirm button 158, a release button 160, a page display 122, page switching buttons 124 and 126, and a close button 162. There is.

The system selection unit 152 selects from the up line and the down line. The device selection unit 154 selects from manual notification, fire hydrant, and duct. The partition selection unit 156 inputs the partition number.

In the measurement record narrowing screen 150, for example, when it is desired to narrow down to the measurement record of “section 01 in the manual reporting device for the up line”, “upline” is displayed in the system selection unit 152 and “in the system selection unit 154” as illustrated. When “01” is set in the “manual report” and the section selection unit 156 and the confirm button 158 is operated, the corresponding narrowed measurement record 164 is displayed.

When the release button 160 is operated in this state, the narrowing-down condition and the narrowing-down measurement record 164 are cleared. Further, when the close button 162 is operated, the screen returns to the measurement recording screen 118 of FIG. 7.

By using such a function of the measurement record narrowing-down screen 150, it is possible to narrow down and display the measurement records by setting narrowing-down conditions that are a combination of the system, the device, and the section, out of the enormous stored measurement records. Therefore, for example, it is possible to efficiently determine the line deterioration status of an appropriate device that has an abnormal current value.

As a condition for narrowing down the measurement record, the period may be selected in addition to the system, device, and section.

[Error history display]
FIG. 9 is an explanatory view showing an abnormality history display by the sub monitor device. As shown in FIG. 9, when the abnormality history button 78 arranged on the lower side of the sub monitor screen 70 is operated, it is switched to the abnormality history screen 132 shown.

When the switching operation to the abnormality history screen 132 is detected, the current monitoring unit 58 extracts the measurement history of the signal line for which the current value abnormality is determined from the current value measurement history stored in the memory, and the abnormality history. The detailed information 136 is displayed.

The abnormality history detailed information 136 displays the line number, the date and time, the item, and the recovery confirmation date and time indicated by No in a list format. For example, when the line number 004 is taken as an example, the item is “uplink manual notification”. “Upper limit value abnormality” indicates that the abnormality exceeds the upper limit value due to tunnel name, terminal device type, insulation deterioration, and the like.

[Fire line history display]
FIG. 10 is an explanatory diagram showing a fire line history screen of the sub monitor device displaying the measurement history of the fire line. As shown in FIG. 10, when the fire history button 80 arranged on the lower side of the sub monitor screen 70 is operated, the fire line history screen 138 shown in the figure is switched to, and the fire history detailed information 140 is notified from the monitoring controller 56. The measurement history corresponding to the line number of the fire line, for example, the line number 005 is read from the memory and displayed.

The fire history of the fire line 005 can be viewed by switching the pages of the fire history detailed information 140 by operating the page switching buttons 124 and 126 on the right side of the screen. It is possible to find out what kind of situation was there.

[Display fault line history]
FIG. 11 is an explanatory diagram showing a failure line history screen of the sub monitor device displaying the measurement history of the failure line. As shown in FIG. 11, when the fault history button 82 arranged on the lower side of the sub monitor screen 70 is operated, the fault line history screen 142 shown in FIG. 11 is displayed, and the fault history detailed information 144 is notified from the monitoring controller 56. The line number of the faulty line, for example, the measurement history corresponding to the line number 008 is read from the memory and displayed.

For the measurement history of the fault line 008, the page of the fault history detailed information 144 can be switched by operating the page switching buttons 124 and 126 on the right side of the screen. It was possible to make a judgment although it was in such a situation.

For example, in the measurement history on the 3rd to 4th lines of the fault history detailed information 144, the measured value is 0.00 mA and is lower than the lower limit value 0.01 mA, and the determination is “NG”, which causes disconnection to the line number 008. It can be seen that a failure has occurred, and the measured value returned to the threshold value range of 0.75 mA in the 5th row after two days had passed, and the determination was "OK", indicating that the disconnection failure was restored by repair or the like.

[Fire Abnormality History Display and Fault Abnormality History Display]
In the sub monitor screen 70 shown in FIG. 9, for example, when the abnormality history button 78 and the fire history button 80 are simultaneously operated, the “fire abnormality history screen” is displayed, and the abnormality history detailed information 136 is notified from the monitoring controller 56. It is possible to read out the measurement history of the signal line in which the current value abnormality is determined in the fire line from the memory and display it.

Further, on the sub monitor screen 70, for example, when the abnormality history button 78 and the fault history button 82 are simultaneously operated, the screen is switched to the “fault abnormality history screen”, and the fault history detailed information 136 indicates the fault line notified from the monitoring control unit 56. Moreover, the measurement history of the signal line in which the current value abnormality is determined can be read out from the memory and displayed.

As a result, only the measurement history where the current value is judged to be abnormal is displayed for the fire circuit or fault circuit, and the measurement history where the current value is judged to be normal are excluded. It is possible to more easily determine whether or not there is such a state.

[Monitoring control of current monitoring unit]
FIG. 12 is a flow chart showing the current monitoring control by the current monitoring unit of the disaster prevention receiver board, which is the control operation by the current monitoring unit 58 shown in FIG.

As shown in FIG. 12, the current monitoring unit 58 initially sets the constant-cycle measurement of the current value, and when the setting of the constant-cycle measurement is determined in step S1, the process proceeds to step S2, and in step S2 the constant measurement is performed once a day. When it is determined that the cycle measurement timing has been reached, the process proceeds to step S3, the current values of all the lines are sequentially measured and stored in the memory, it is determined whether the measured current value is outside a predetermined threshold range, and the process proceeds to step S4. The measurement result is stored in the memory as a measurement history with.

When the automatic monitoring operation by the sub monitor device 46 is detected in step S5, the current monitoring unit 58 proceeds to step S6 to sequentially measure the current values of all the signal lines to the terminal equipment of the selected tunnel, and the measured values are measured. It is determined whether the measured current value is outside the predetermined threshold range, and the measurement result is displayed on the screen of the sub monitor device 46 in step S7. The measurement result obtained by the automatic measurement may be stored in the memory as history information in step S7.

Further, when the current monitoring unit 58 detects the manual measurement operation of selecting the line number by the sub monitor device 46 in step S8, the current monitoring unit 58 proceeds to step S9 to measure and measure the current value of the signal line selected by the manual operation. It is determined whether the obtained current value is outside the predetermined threshold range, and the measurement result is displayed on the screen of the sub monitor device 46 in step S10. Note that the measurement result of the manual measurement may be stored in the memory as history information in step S10.

In addition, when the current monitor 58 detects the display operation of the measurement history by the sub monitor device 46 in step S11, the process proceeds to step S12, and the measurement history is read from the memory to the sub monitor device 46 as shown in FIG. Display on the screen. In the display of the measurement history in step S12, by switching to the measurement record narrowing screen shown in FIG. 8, it is possible to display the measurement records narrowed down by system, device, and section.

Further, when the current monitoring unit 58 detects the display operation of the fire line history by the sub monitor device 46 in step 13, the process proceeds to step S14, and as shown in FIG. 4, the monitoring control unit 56 notifies from the memory. The measurement history corresponding to the line number of the fire line is read out and displayed on the sub monitor device 46.

Further, when the current monitoring unit 58 detects the display operation of the faulty line history by the sub-monitor device 46 in step 15, the process proceeds to step S16, and as shown in FIG. The measurement history corresponding to the line number of the faulty line is read and displayed on the sub monitor device 46.

Further, when the current monitoring unit 58 detects the display operation of the abnormality history by the sub monitor device 46 in step 17, the process proceeds to step S18, and as shown in FIG. 8, the current value abnormality is determined from the memory. The history is read and displayed on the screen of the sub monitor device 46.

When the current monitoring unit 58 detects the display operation of the fire line abnormality history by the sub monitor device 46 in step 19, the process proceeds to step S20, the current value abnormality is determined from the memory, and the monitoring control unit 56 notifies. The measurement history corresponding to the line number of the fire line is read and displayed on the sub monitor device 46 on the screen.

Further, when the current monitoring unit 58 detects the display operation of the fault line abnormality history by the sub monitor device 46 in step 21, the current monitoring unit 58 proceeds to step S22, determines the current value abnormality from the memory, and notifies from the monitoring control unit 56. The measurement history corresponding to the line number of the faulty line is read out and displayed on the sub monitor device 46 on the screen.

[Modification of the present invention]
(Main monitor device)
Although the above embodiment uses a liquid crystal display with a touch panel as a main monitor device, it is not limited to a liquid crystal display, and an operation display unit including various indicators and operation units necessary for tunnel disaster prevention monitoring, for example, It may be used as a graphic panel.

(Other)
Further, the present invention includes appropriate modifications that do not impair the objects and advantages thereof, and is not limited by the numerical values shown in the above embodiments.

1a: Upline tunnel 1b: Downline tunnel 10: Disaster prevention reception panel 12, 12-1 to 12-n: Signal line 14: Fire hydrant valve open/close detection switch 16: Manual notification device 18: Fire hydrant device 20: Fire pump equipment 22: Cooling pump equipment 24: IG slave station equipment 26: distant monitoring control equipment 28: ventilation equipment 30: alarm display board equipment 32: radio rebroadcast equipment 34: television monitoring equipment 36: lighting equipment 40: control units 42, 54: P type Transmission unit 44: Main monitor device 46: Sub monitor device 48: Alarm unit 52: Operation unit 56: Monitoring control unit 58: Current monitoring unit 60: Case 62: Panel door 70: Sub monitor screen 84: Automatic measurement screen 106: Manual measurement Screen 118: Measurement record screen 132: Abnormality history screen 138: Fire line history screen 142: Fault line history screen 150: Measurement record narrowing screen

Claims (6)

Disaster prevention reception board,
A terminal device that outputs a predetermined signal regarding a fire to the disaster prevention reception panel via a signal line in the event of a fire,
A current monitoring unit that determines a current value abnormality based on a current value flowing in the signal line and stores the determination result as a history;
Tunnel disaster prevention system characterized by the provision of
In the disaster prevention system according to claim 1,
A tunnel disaster prevention system, wherein the current monitoring unit extracts at least the determination result of the signal line determined to have the current value abnormality from the stored history and displays the result on the screen of the disaster prevention reception panel. ..
In the disaster prevention system according to claim 1 or 2,
The current monitoring unit measures the current value flowing in the signal line and stores the measurement result in the history, and at least the measurement result of the current value of the signal line in which the current value abnormality is determined, A tunnel disaster prevention system characterized by being extracted from the stored history and displayed on the screen of the disaster prevention reception board.
In the tunnel disaster prevention system according to any one of claims 1 to 3,
The current monitoring unit extracts the determination result of the current value abnormality of the signal line and/or the measurement result of the current value according to a predetermined narrowing condition, and extracts it from the stored history and displays it on the screen of the disaster prevention receiver board. Tunnel disaster prevention system characterized by displaying.
In the tunnel disaster prevention system according to claim 3,
The current monitoring unit receives a predetermined manual measurement operation for any one of the signal lines from among the plurality of signal lines, measures a current value flowing through the targeted signal line, and performs the measurement. A tunnel disaster prevention system, wherein the current value abnormality is determined based on a current value, and the determination result of the current value abnormality and/or the measurement result of the current value is displayed on the screen of the disaster prevention reception panel.
In the tunnel disaster prevention system according to claim 3,
The current monitoring unit receives a predetermined history display operation targeting the signal line that has received a predetermined signal related to the fire or the signal line that has a predetermined failure, and the current monitoring unit of the target signal line A tunnel disaster prevention system, wherein the determination result of the current value abnormality and/or the measurement result of the current value is extracted from the stored history and displayed on the screen of the disaster prevention reception board.

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