JP6916926B2 - Disaster prevention system - Google Patents

Description

The present invention relates to a disaster prevention system including a tunnel disaster prevention system that monitors abnormalities in a tunnel by connecting terminal devices such as a notification device and a detector installed in the tunnel to a disaster prevention receiver.

Conventionally, emergency facilities have been installed in tunnels such as motorways to protect people and vehicles from fire accidents that occur in the tunnels.

Such emergency facilities include fire detectors, manual notification devices, emergency telephones for fire monitoring and reporting, fire hydrant devices for extinguishing fires and preventing the spread of fire, and tunnel skeletons. In order to protect the inside of the duct from fire, water spray equipment that sprinkles fire extinguishing water from the water spray head is installed, and by installing a disaster prevention receiver that monitors and controls the terminal equipment of these emergency facilities, a tunnel disaster prevention system can be installed. I'm building.

The tunnel disaster prevention system consisting of a disaster prevention receiver and terminal equipment is roughly divided into an R-type transmission system and a P-type direct delivery system. The R-type transmission method connects a terminal device such as a fire detector whose address is set to a transmission line, and enables individual management in which detection and control are performed for each terminal device by transmission control. In the P-type direct delivery method, a plurality of terminal devices belonging to the same section are connected to a signal line drawn out in a predetermined section unit according to the type of the terminal device, and detection and control are performed for each signal line.

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

Specifically, the power supply voltage is applied to one of the signal lines from the disaster prevention receiver side via a pull-up resistor, and in the steady monitoring state when the non-voltage a contact switch is turned off, most of the current consumption flows through the signal line. However, the power supply voltage between the signal lines seen from the disaster prevention receiver is kept at approximately the power supply voltage. When the non-voltage a contact switch is turned on, a current flows through the signal line, the voltage between the signal lines seen from the disaster prevention receiver drops to almost zero volts, and the disaster prevention receiver increases the current consumption of the signal line or between the signal lines. Detects a voltage drop and outputs a received signal indicating the operation or detection of the terminal device to the control unit.

For example, in the case of a fire report signal from a manual report device, the disaster prevention receiver performs control operations such as fire display, lighting control of the response lamp on the terminal side, manual report section display, and output of the fire extinguishing pump start signal, and also performs remote monitoring. A fire alarm signal is transmitted to external equipment such as control equipment, TV monitoring equipment, variable road information board equipment, tunnel ventilation equipment, and lighting equipment so that predetermined countermeasure control can be performed.

Japanese Unexamined Patent Publication No. 2002-246962 Japanese Unexamined Patent Publication No. 11-128381

In such a conventional P-type direct delivery type tunnel disaster prevention system, the insulation deteriorates due to aged deterioration of the signal line (outside line cable) connecting the terminal equipment, and the signal line connecting the terminal equipment. More current than expected in the normal monitoring state flows, and the disaster prevention receiver determines that the signal is received by the operation or detection operation of the terminal equipment and performs an alarm operation, as well as remote monitoring control equipment, TV monitoring equipment, and variable road. Information board equipment, tunnel ventilation equipment, lighting equipment, and other other equipment are often linked to block traffic in tunnels.

In order to solve this problem, a current monitoring device is provided in a housing separate from the disaster prevention receiver, 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. It is periodically measured and recorded, and when the measured current exceeds a predetermined threshold value, an abnormality in the current value of the signal line is determined and an alarm is given.

By the way, if the disaster prevention receiver receives a fire alarm signal and outputs a fire alarm, or if a signal line failure is detected and a failure alarm is output, the fire signal will be displayed at the stage of subsequent investigation work. The measurement history measured by the current monitoring device may be displayed for the fire line in which the fire line is received or the failure line in which the failure is detected, and the state of the fire line or the failure line may be investigated.

However, in order to check the measurement history of the current value of the fire line or the fault line, it is necessary to display the measurement history of the current value on the monitoring device and search for the fire line or the fault line while switching pages or scrolling. Since the measurement history is generated by regular periodic measurement once a day, the amount of data in the measurement history is enormous, and it is difficult to find the measurement history of a fire line or a faulty line from among them, and it is troublesome to investigate. There is a problem that it takes time.

In addition, since the current monitoring device is conventionally provided in a separate housing from the disaster prevention receiver, the transmission function and processing function that send fire information, failure information, etc. from the disaster prevention receiver to the current measurement device and store it together with the measurement history. There is also a problem that the equipment configuration and processing become complicated.

The present invention simplifies the equipment configuration and processing by integrating the functions of the current monitoring device into the disaster prevention receiver, and simplifies the measurement history of the current value of the signal line that received the fire signal and the signal line that detected the failure. The purpose is to provide a disaster prevention system that can be easily investigated.

( Disaster prevention system)
The present invention is a disaster prevention system.
Disaster prevention receiver and
A terminal device that outputs a predetermined signal related to a fire to the disaster prevention receiver via a signal line in the event of a fire.
A current monitoring unit that determines abnormal current values based on the current value flowing through the signal line and stores the determination results as a history.
Is provided.

(History display of current value abnormality)
At least, the current monitoring unit extracts the determination result of the current value abnormality of the signal line determined to be the current value abnormality from the stored history, and the screen on which the predetermined information regarding the disaster prevention monitoring of the disaster prevention receiver is displayed. Display on a different screen.
As a means to display on a different screen
The disaster prevention receiver is a main monitor device equipped with a main monitor screen that displays predetermined information related to disaster prevention monitoring.
A sub-monitor device with a sub-monitor screen that is not visible at the same time as the main monitor screen,
Or
The disaster prevention receiver is a main monitor device equipped with a main monitor screen that displays predetermined information related to disaster prevention monitoring.
A sub-monitor device that is arranged so that it can be seen even from a position where the main monitor screen is not visible,
To be equipped.
More specifically
The housing of the disaster prevention receiver is provided with a door that can be opened and closed by rotating around the front of the housing.
The main monitor screen is arranged so that it can be seen from the front of the housing when the door is closed.
The sub monitor screen is arranged inside the housing on the back side of the door when the door is closed so that the main monitor screen can be seen from a position where it cannot be seen when the door is opened.
Further, even in cases other than the history display of the current value abnormality, the determination result of the current value abnormality and / or the measurement result of the front flow value are similarly displayed on the sub monitor screen.

(History display including current value measurement results)
The current monitoring unit measures the current value flowing through the signal line and stores the measurement result in the history, and at least measures the current value abnormality determination result and / or the current value of the signal line for which the current value abnormality is determined. The result is extracted from the stored history and displayed on a screen different from the screen on which the predetermined information on the disaster prevention monitoring of the disaster prevention receiver is displayed.

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

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

(History display of fire line or failure line)
The current monitoring unit receives a predetermined history display operation for a signal line that has received a predetermined signal related to a fire or a signal line in which a predetermined failure has occurred, and determines a current value abnormality 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 receiver.

(Basic effect)
The present invention is a disaster prevention system, which is a disaster prevention receiver, a terminal device that outputs a predetermined signal related to a fire to the disaster prevention receiver via a signal line in the event of a fire, and a current value abnormality based on the current value flowing through the signal line. A current monitoring unit is provided to determine and store the determination result as a history, and 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 for disaster prevention. It is displayed on a screen different from the screen on which predetermined information on disaster prevention monitoring of the receiving panel is displayed, and the current monitoring unit measures the current value flowing through the signal line and stores the measurement result in the history, at least. , The measurement result of the current value of the signal line where the current value abnormality is judged is extracted from the stored history and displayed on a screen different from the screen on which the predetermined information on disaster prevention monitoring of the disaster prevention receiver is displayed. Therefore, when a fire alarm is output from the disaster prevention receiver or a failure alarm for the signal line is output, the fire detected by the disaster prevention monitoring and control unit is detected by performing the history display operation of the fire line or the failure line. Based on the line number of the line or the faulty line, the measurement history of the fire line or the faulty line is extracted from the measurement history stored at that time and displayed on the screen of the disaster prevention receiver, and the fire is displayed from the huge measurement history. It is no longer necessary to find out the measurement history of the line or the faulty line, and the current value measurement history of the extracted fireline or faulty line can be easily and easily checked to see what the fireline or faulty line was like. It can be confirmed on the screen, and it is possible to appropriately judge the state of the signal line in which the fire was received and the signal line in which the failure was detected.

(Effect of history display by narrowing down conditions)
In addition, the current monitoring unit extracts the determination result of the current value abnormality of the signal line according to the predetermined narrowing condition and / or the measurement result of the current value from the stored history and displays it on the screen of the disaster prevention receiver. Therefore, by specifying the system that becomes the up line and down line, the manual notification device, the fire extinguisher, the duct, and the section number as the narrowing conditions, the required specific measurement history can be extracted from the huge measurement history. It is possible to efficiently judge a specific line deterioration state or the like based on the measurement record .

(Effect of manual measurement of current value)
Further , 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 through the target signal line, and measures the measured current. The current value abnormality is judged based on the value, and the current value abnormality judgment result and / or the current value measurement result are displayed on the screen of the disaster prevention receiver. By manually measuring the signal line in which is detected, the progress of insulation deterioration of the signal line in which the fire was received and the signal line in which the failure was detected can be checked on the screen of the disaster prevention receiver. It becomes possible to judge by looking at the display.

(Effect of displaying abnormal history corresponding to fire receiving line or failure line)
In addition, the current monitoring unit receives a predetermined history display operation for the signal line that has received the predetermined signal related to the fire or the signal line in which the predetermined failure has occurred, and the current value abnormality of the target signal line is abnormal. Since the judgment result and / or the current value measurement result are extracted from the stored history and displayed on the screen of the disaster prevention receiver, if there are many current value abnormality measurement histories, the current value abnormality is included in the measurement history. The history of the fire line or the fault line that was judged to be was extracted and displayed, and the progress of insulation deterioration due to the abnormal current value of the signal line that received the fire and the signal line where the fault was detected. Can be easily and easily investigated.

Explanatory diagram showing the outline of the tunnel disaster prevention system Explanatory drawing showing the appearance of the disaster prevention receiver Explanatory drawing showing the state where the panel door of the disaster prevention receiver is opened and the sub monitor device can be seen. Block diagram showing the outline of the functional configuration of the tunnel disaster prevention system Explanatory drawing which showed 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 recording 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 displaying the measurement history of the fire line. Explanatory diagram showing the fire failure line history screen of the sub monitor device displaying the measurement history of the failure line. Flow chart showing current monitoring control by the current monitoring unit of the disaster prevention receiver

[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 line tunnel 1a and a down line tunnel 1b are constructed as a tunnel for a motorway, and the up line tunnel 1a and the down line tunnel 1b are connected by an evacuation connecting pit 2.

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

The fire hydrant device 18 houses a hose with a nozzle inside the fire hydrant door. In the event of a fire, the fire hydrant door is opened to pull out the hose with a nozzle, and when the fire hydrant valve open / close lever is opened, fire hydrant water is discharged and the fire hydrant valve open / close detection is detected. The switch 14 is turned on to start the fire extinguishing 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 a fire hydrant valve open / close detection switch 14 and a manual notification device 16 as terminal devices, and when the non-voltage a contact switch functioning as a contact means is turned on, a pump start signal or a fire is generated. Output a notification signal.

The fire hydrant device 18 is provided with a pump start switch used by the fire brigade, but since it is the same switch in terms of the system that outputs the same pump start signal as the fire hydrant valve open / close detection switch 14, the following This will be described as a fire hydrant valve open / close detection switch (including a pump start switch) 14. Further, the manual notification device 16 is installed in the emergency telephone box in addition to the fire hydrant device 18, 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 temperature detector in a duct, and the like are provided as tunnel emergency equipment, but they are not shown.

Fire detectors are installed along the wall surface in the longitudinal direction of the tunnel, for example, at intervals of 25 meters or 50 meters, and monitoring areas are set on both sides, which are 25 meters or 50 meters on the left and right, to detect the flame caused by the fire and notify the fire. ..

The automatic valve device constitutes a water spray facility, and the main valve is opened and driven by remote opening control of the electric valve for operation, and fire extinguishing water is discharged from multiple water spray heads installed in the longitudinal direction at the top of the tunnel wall surface. Protect the tunnel frame from fire.

The temperature detector in the duct is placed 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 or the like, and functions as a contact means. A temperature detection signal is output when the a-contact switch is turned on.

Disaster prevention receivers 10 are installed in the monitoring centers of the up line tunnel 1a and the down line tunnel 1b. In addition to the disaster prevention monitoring function of the up line tunnel 1a and the down line tunnel 1b, the disaster prevention receiving panel 10 is provided with a current monitoring function for monitoring the current of the P-type signal line to which the terminal device is connected.

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

Similarly, for the in-duct temperature detector installed in the duct, a P-type signal line is pulled out in each section, and a plurality of in-duct temperature detectors provided in each section are connected. However, the illustration is omitted. Further, the signal lines 12-1 to 12-n may be referred to as a signal line 12 when it is not necessary to distinguish them.

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

In addition to the fire extinguishing plug device 18, fire detector and automatic valve device, the emergency facilities for the tunnel include fire extinguishing pump equipment 20, cooling pump equipment for ducts 22, IG slave station equipment 24, ventilation equipment 28, and alarm display board equipment. 30, radio rebroadcasting equipment 32, TV monitoring equipment 34, lighting equipment 36, etc. are provided, and except that the IG slave station equipment 24 is connected by a data transmission line, the other equipment is disaster-prevented by a P-type signal line. It is individually connected to the receiving panel 10. Here, the IG slave station equipment 24 is a communication equipment that connects the disaster prevention receiver 10 and the remote monitoring and control equipment 26, which is a higher-level equipment provided outside, via the network 25.

The ventilation equipment 28 is equipment that gives energy to the air in the tunnel by the high blowing wind speed operated by the jet fan installed on the ceiling side in the tunnel to generate an arousal flow in the longitudinal direction of the tunnel.

Further, the alarm display board equipment 30 is equipment for displaying an abnormality in the tunnel on an electric display board to notify the user in the tunnel. The radio rebroadcasting 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 equipment 34 is equipment for confirming the scale and position of a fire, operating a water spraying equipment, and grasping the situation in a tunnel when evacuation guidance is performed. 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 appearance of the disaster prevention receiver, FIG. 2A shows the front side, 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 receiver is opened so that the sub monitor device can be seen.

As shown in FIG. 2, the disaster prevention receiver 10 is provided with a panel door 62 that can be opened and closed by operating a handle on the front surface of the box-shaped housing 60 opened in the front-rear direction, and also on the back surface of the housing 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. Predetermined information regarding tunnel disaster prevention monitoring is displayed on the screen of the main monitor device 44.

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 receiver 10 is opened, the sub-monitor device 46 arranged on 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.

[Disaster prevention receiver panel configuration]
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 receiver 10 includes a control unit 40, and the control unit 40 is a function realized by executing a program, for example, and the hardware includes various inputs including a CPU, a memory, and an AD conversion port. Use a computer circuit or the like equipped with an output port or the like.

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 a P-type signal line 12, and the control unit 40 is provided with a main monitor device 44 and a sub-monitor device. 46, an alarm unit 48 equipped with a speaker, a buzzer, an alarm indicator light, etc., a display unit 50 equipped with various indicator lights, an operation unit 52 equipped with various switches, and further, an IG slave station equipment 24, a ventilation equipment 28, A P-type transmission unit 54 is provided in which the alarm display board equipment 30, radio rebroadcast equipment 32, television monitoring equipment 34, lighting equipment 36, fire extinguishing pump equipment 20, and cooling pump equipment 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 functions realized by executing the program.

(Monitoring and control unit)
The monitoring control unit 56 detects from terminal devices such as a fire hydrant valve open / close detection switch 14 and a manual notification device 16, a fire detector, a temperature detector in a duct, and an automatic valve device provided in the fire hydrant device 18 installed in the tunnel. Performs predetermined monitoring and control based on signals and operation signals.

Further, when the monitoring control unit 56 receives a fire notification signal (fire signal) operated by the manual notification device 16 provided in the fire hydrant device 18, for example, the alarm unit 48 sounds the main sound and the display unit 50 displays the fire representative. The display is performed, and further, a fire display and a manual notification section display are performed on the screen of the main monitor device 44, and a response signal is transmitted to the fire hydrant device 18 to light the response lamp.

Further, when the monitoring control unit 56 receives the pump start signal output by turning on the fire hydrant valve open / close detection switch 14 by opening the fire hydrant valve open / close lever provided in the fire hydrant device 18, the monitoring control unit 56 starts the pump to the fire hydrant pump equipment 20. Controls to send a signal and activate it.

Further, as control for other equipment, the monitoring control unit 56 transmits a fire notification signal to the remote monitoring control equipment 26 via the IG slave station equipment 24 to give an alarm, and the TV monitoring equipment 34 displays the manual notification section. , The alarm display board equipment 30 controls to display a fire report in the manual notification section, the ventilation equipment 28 controls to ventilate the manual notification section, and the lighting equipment 36 controls to illuminate the manual notification section. Further, the monitoring control unit 56 controls the current monitoring unit 58 to notify the line number of the fire line.

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

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

The monitoring control unit 56 monitors the disconnection failure of the signal line 12 by connecting a terminating resistor to the end of the signal line 12 to allow a disconnection monitoring current to flow, and detects the disconnection failure when the disconnection monitoring current is interrupted.

(Current monitoring unit)
The current monitoring unit 58 measures the current value of the signal line 12 connected to the terminal device provided with the non-voltage a contact switch including the fire extinguisher valve open / close detection switch 14 and the manual notification device 16, and the measured current value is a predetermined upper limit. When the value and the lower limit value deviate from the threshold range, the current value abnormality is determined, and the measurement result is stored as a measurement history in a memory using a detachable memory card. The current value of the signal line 12 is measured by the current monitoring unit 58, for example, the current value measured for a predetermined time is measured for a predetermined time in order to remove the influence of noise by AD-converting and reading the detection voltage of the current detection resistor inserted in the signal line 12. Calculate the average value of.

Here, the current value measurement by the current monitoring unit 58 includes a fixed cycle measurement, an automatic measurement, and a manual measurement. The constant cycle measurement of the current monitoring unit 58 sequentially measures the current values of all the signal lines 12 at predetermined cycles, for example, once a day, and when the measured current values deviate from the predetermined threshold range, the current is measured. 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 through all the signal lines 12 are sequentially measured, and the measured current value is out of the predetermined threshold range. In this case, the current value abnormality is determined, and the measurement result is controlled to be displayed on the screen on the sub monitor device 46.

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

Further, when the current monitoring unit 58 detects the measurement history display operation by the sub monitor device 46, 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.

Further, when the current monitoring unit 58 detects a fire history display operation or a failure history display operation for a fire line or a failure line by the sub monitor device 46, the current monitoring unit 58 monitors from the measurement history of the current value stored in the memory. Control is performed to extract the measurement history corresponding to the line number of the fire line or the faulty 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 the 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 measurement history of the current value stored in the memory, and the sub monitor device 46. Controls the screen display in chronological order.

Further, when the current monitoring unit 58 detects the abnormality history display operation targeting the fire line or the fault line by the sub monitor device 46, the current value abnormality is determined from the measurement history of the current value stored in the memory. In addition, the measurement history corresponding to the line number of the fire line or the faulty line notified by the monitoring control unit 56 is extracted and controlled to be displayed on the screen of the sub monitor device 46 in chronological order.

[Constant period measurement of current value]
FIG. 5 is an explanatory diagram showing an automatic measurement screen of the 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 arranged at the lower side of the screen as screen expansion buttons. When the automatic measurement button 72 is operated as shown 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 the on state as an initial setting, and the current monitoring unit 58 by this is set to a predetermined state. The current values of all the signal lines 12 are sequentially measured every cycle, for example, once a day, and when the measured current value deviates from a predetermined threshold range, the current value abnormality is determined, and the measurement result is measured in the measurement history. The constant period measurement is performed so that it 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 fixed cycle measurement on the upper right is operated to perform the fixed cycle measurement. To release. Subsequently, for example, "up line manual notification" in the type selection unit 86 is selected as the test target, and the start button 92 arranged for the 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 signal lines to the manual notification device arranged in the selected up line tunnel are sequentially measured, and the automatic measurement details are obtained. The measured value is displayed in the information 104. Further, for each automatic measurement of the signal line, the measured value is displayed in the measured value frame 96 at the lower right, and the measured time is displayed in the measurement time frame 98. Further, during the automatic measurement, the measuring display 100 on the upper left of the screen changes to notify that the automatic measurement is being performed.

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

Here, for the line number 004, since the measured value is 1.25 mA and 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. The current value abnormality is notified, and the current value abnormality occurrence display 102 is changed to notify the occurrence of the current value abnormality.

The automatic measurement of the current value can be ended by operating the stop button 94. When the automatic measurement is completed, the measurement result of the automatic measurement may be stored in the memory as history information.

Further, when the automatic measurement of the current value is completed, the constant cycle measurement of the current value can be restored by operating the ON button 88 for the constant cycle measurement.

[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 on the lower side of the sub monitor screen 70 is operated, the screen can be switched to the illustrated manual measurement screen 106.

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

Here, the current selected line is indicated by changing the display of the line number 004 indicated by hatching in the line number of the manual measurement detailed information 116, and when the selection buttons 108 and 110 are operated, the change of the line number is increased or You can move down and select any line number. After selecting the line number, operate the start button 112 located in the manual measurement.

Such a manual measurement operation of 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 notification device arranged in the upstream tunnel is measured and manually measured. The measured value is displayed in the detailed information 116. Further, when the manual measurement is started, the display 100 during measurement changes to indicate that the manual measurement is being performed.

Here, since the measured value of the line number 004 that was manually measured is 1.25 mA and 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 indicated by hatching. It has changed, and the current value abnormality occurrence display 102 has changed, indicating that the current value abnormality has been determined.

When the manual measurement of the current value is desired to be completed, the stop button 114 for the manual measurement is operated, and then the ON button 88 for the constant cycle measurement is operated to return to the constant cycle measurement of the current value. When the manual measurement is completed, the measurement result of the manual measurement may be stored in the memory as history information.

[Measurement history display]
FIG. 7 is an explanatory diagram showing a measurement recording 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 is switched to the illustrated measurement record screen 118, and the measurement history read from the memory is displayed in the measurement history detailed information 120. 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 eject button 130, and a line selection button 131 are arranged. By operating the page switching buttons 126 and 128, the page of the measurement history detailed information 120 can be switched. The file save button 128 instructs the memory storage of the measurement result. The memory take-out button 130 is operated when taking out the memory storing the current value measurement information from the disaster prevention receiving panel 10.

The measurement history detailed information 120 displayed in the center of the measurement recording screen 118 is divided into each item of line number, date and time, item, upper limit value / lower limit value, measurement value and judgment indicated by No, and for each signal line. Information is listed. Here, in the line number 004, since the measured value is 1.25 mA and exceeds the upper limit value of 1.00 mA, it is determined that the current value is 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 judged to be normal by the display of "OK".

[Measurement record narrowing down display]
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 record screen 118 of FIG. 7, the display is switched to the measurement record narrowing screen 150 of FIG. The measurement record narrowing screen 150 is provided with a system selection unit 152, a device selection unit 154, a section selection unit 156, a confirmation button 158, a release button 160, a page display 122, a page switching buttons 124, 126, and a closing button 162. There is.

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

On 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 notification device for the up line", as shown in the figure, the system selection unit 152 has an "up line" and the device selection unit 154 has an "up line". When "manual notification" and "01" are set in the section selection unit 156 and the confirmation button 158 is operated, the corresponding narrowing measurement record 164 is displayed.

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

By using the function of such a measurement record narrowing screen 150, it is possible to narrow down and display the measurement record by setting the narrowing condition that combines the system, the device, and the section from the huge number of stored measurement records. This makes it possible to efficiently determine, for example, the line deterioration status of an appropriate device that has caused an abnormality in the current value.

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

[Abnormal history display]
FIG. 9 is an explanatory diagram 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, the screen can be switched to the illustrated abnormality history screen 132.

When the current monitoring unit 58 detects the switching operation to the abnormality history screen 132, 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. Display detailed information 136.

The abnormality history detailed information 136 displays the line number, date and time, item, and recovery confirmation date and time indicated by No. in a list format. For example, taking line number 004 as an example, "up line manual report" As "abnormal upper limit value", it is displayed that the upper limit value is exceeded due to the tunnel name, the type of terminal device, deterioration of insulation, 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 below the sub monitor screen 70 is operated, the screen is switched to the illustrated fire line history screen 138, and the fire history detailed information 140 is notified by the monitoring control unit 56. The line number of the fire line, for example, the measurement history corresponding to the line number 005 is read from the memory and displayed.

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

[Failure line history display]
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 failure history button 82 arranged below the sub monitor screen 70 is operated, the screen is switched to the illustrated failure line history screen 142, and the failure history detailed information 144 is notified by the monitoring control unit 56. The line number of the failed line, for example, the measurement history corresponding to the line number 008 is read from the memory and displayed.

Measurement history of failed line 008 may be seen by switching the pages of the fault history details 144 by operating the right side of the screen page switching button 124, a measurement history of the current value of the fault line 008, how Although it was in a difficult situation, it can be judged.

For example, in the measurement history of the 3rd to 4th lines of the failure history detailed information 144, the measured value is 0.00 mA, which is below the lower limit of 0.01 mA and the judgment is "NG", which causes the line number 008 to be disconnected. It was found that a failure had occurred, and on the fifth line after two days had passed, the measured value returned to the threshold range of 0.75 mA, the judgment was "OK", and it was found that the disconnection failure was restored by repair or the like.

[Fire abnormality history display and failure abnormality history display]
On the sub monitor screen 70 shown in FIG. 9, for example, when the abnormality history button 78 and the fire history button 80 are operated at the same time, the screen is switched to the “fire abnormality history screen”, and the abnormality history detailed information 136 is notified by the monitoring control unit 56. It is possible to read the measurement history of the signal line for 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 failure history button 82 are operated at the same time, the screen is switched to the "fault history history screen", and the failure line notified from the monitoring control unit 56 to the abnormality history detailed information 136 is displayed. Moreover, the measurement history of the signal line for which the current value abnormality is determined can be read from the memory and displayed.

As a result, for the fire line or the fault line, only the measurement history in which the current value abnormality is judged is displayed, and the measurement history in which the current value is judged to be normal is excluded. It is easier to determine whether or not such a situation has occurred.

[Monitoring control of current monitoring unit]
FIG. 12 is a flowchart showing current monitoring control by the current monitoring unit of the disaster prevention receiver, and the control operation is performed 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 the constant cycle measurement is set once a day in step S2. When it is determined that the periodic measurement timing has been reached, the process proceeds to step S3, the current values of all lines are sequentially measured and stored in the memory, it is determined whether or not the measured current value is outside the predetermined threshold range, and the process proceeds to step S4. The measurement result is stored in the memory as the measurement history.

Further, when the current monitoring unit 58 detects the automatic measurement operation by the sub monitor device 46 in step S5, the current monitoring unit 58 proceeds to step S6 to sequentially measure and measure the current values of all signal lines for the terminal equipment of the selected tunnel. It is determined whether or not the current value is out of 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 of the automatic measurement in step S7 may be stored in the memory as history information.

When the current monitoring unit 58 detects the manual measurement operation in which the line number is selected 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 or not the generated current value is out of the predetermined threshold range, and the measurement result is displayed on the screen of the sub monitor device 46 in step S10. In step S10, the measurement result by manual measurement may be stored in the memory as history information.

When the current monitoring unit 58 detects the measurement history display operation by the sub monitor device 46 in step S11, the current monitoring unit 58 proceeds to step S12, reads the measurement history from the memory, and causes the sub monitor device 46 to read the measurement history 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 record narrowed down by the system, the device, and the section.

The current monitoring unit 58, when detecting a display operation of a fire line history by the sub-monitor device 46 in step S 13, the process proceeds to step S14, as shown in FIG. 10, is notified from the monitoring control unit 56 from the memory The measurement history corresponding to the line number of the fire line is read out and displayed on the screen on the sub monitor device 46.

The current monitoring unit 58, when detecting the display operation of the fault line history by the sub-monitor device 46 in step S 15, the process proceeds to step S16, as shown in FIG. 11, is notified from the monitoring control unit 56 from the memory The measurement history corresponding to the line number of the faulty line is read out and displayed on the screen on the sub monitor device 46.

The current monitoring unit 58, when detecting the display operation of the abnormality history by the sub-monitor device 46 in step S 17, the process proceeds to step S18, as shown in FIG. 9, the current value abnormality is judged from the memory The measurement history is read out and displayed on the screen of the sub monitor device 46.

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

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

[Modification of the present invention]
(Main monitor device)
In the above embodiment, a liquid crystal display with a touch panel is used as the main monitor device, but the operation display unit is not limited to the liquid crystal display and is provided with various indicator lights and operation units necessary for tunnel disaster prevention monitoring, for example. It may be used as a graphic panel or the like.

(others)
In addition, the present invention includes appropriate modifications that do not impair its purpose and advantages, and is not further limited by the numerical values shown in the above embodiments.

1a: Up line tunnel 1b: Down line tunnel 10: Disaster prevention receiver 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 extinguishing pump equipment 22: Cooling pump equipment 24: IG slave station equipment 26: Remote monitoring and control equipment 28: Ventilation equipment 30: Alarm display board equipment 32: Radio rebroadcasting equipment 34: TV monitoring equipment 36: Lighting equipment 40: Control unit 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: Housing 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: Failure line history screen 150: Measurement record narrowing down screen

Claims (8)

Disaster prevention receiver and
A terminal device that outputs a predetermined signal related to a fire to the disaster prevention receiver via a signal line in the event of a fire.
A current monitoring unit that determines a current value abnormality based on the current value flowing through the signal line and stores the determination result as a history.
In the disaster prevention system provided with
The current monitoring unit, at least, the current value abnormality determination result of the signal line is determined to the current value abnormality, the predetermined information on disaster prevention monitoring of the disaster prevention receiving board extracted from the stored history A disaster prevention system characterized by displaying on a screen different from the displayed screen.
Disaster prevention receiver and
A terminal device that outputs a predetermined signal related to a fire to the disaster prevention receiver via a signal line in the event of a fire.
A current monitoring unit that measures the current value flowing through the signal line to determine an abnormality in the current value and stores the measurement result and the determination result as a history.
In the disaster prevention system provided with
The current monitoring unit, at least, the current abnormality measurement results of the determination result and or the current value of the current value abnormality of the signal line is determined, the disaster prevention receiving board extracted from the stored history A disaster prevention system characterized in that it is displayed on a screen different from the screen on which predetermined information regarding disaster prevention monitoring is displayed.
In the disaster prevention system according to claim 1 or 2.
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 from the stored history and displays it on the screen of the disaster prevention receiver. A disaster prevention system characterized by displaying.
In the disaster prevention system according to claim 2,
The current monitoring unit receives a predetermined manual measurement operation targeting any of the signal lines from among the plurality of signal lines, measures the current value flowing through the target signal line, and measures the current value. A disaster prevention system characterized in that the current value abnormality is determined based on the 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 receiver.
In the disaster prevention system according to claim 2,
The current monitoring unit receives a predetermined history display operation targeting the signal line that has received the predetermined signal related to the fire or the signal line in which the predetermined failure has occurred, and the current monitoring unit receives the predetermined history display operation of the target signal line. A disaster prevention system characterized in that a determination result of an abnormality in a current value and / or a measurement result of the current value is extracted from the stored history and displayed on the screen of the disaster prevention receiver.
In the disaster prevention system according to any one of claims 1 to 5,
The disaster prevention receiver includes a main monitor device provided with a main monitor screen for displaying predetermined information regarding the disaster prevention monitoring.
A sub-monitor device provided with a sub-monitor screen that is not visible at the same time as the main monitor screen,
With
The determination result of the current value abnormality and / or the measurement result of the current value are displayed on the sub monitor screen.
A disaster prevention system characterized by this.
In the disaster prevention system according to any one of claims 1 to 5,
The disaster prevention receiver includes a main monitor device provided with a main monitor screen for displaying predetermined information regarding the disaster prevention monitoring.
A sub-monitor device provided with a sub-monitor screen arranged so that the main monitor screen can be visually recognized even from a position where the main monitor screen cannot be visually recognized.
With
The determination result of the current value abnormality and / or the measurement result of the current value are displayed on the sub monitor screen.
A disaster prevention system characterized by this.
In the disaster prevention system according to claim 6 or 7.
The housing of the disaster prevention receiver is provided with a door that can be opened and closed by rotating around the front of the housing.
The main monitor screen is arranged so as to be visible from the front of the housing when the door is closed.
The sub-monitor screen is arranged inside the housing, which is the back surface side of the door when the door is closed, so that the main monitor screen can be visually recognized from a position where the main monitor screen is not visible when the door is opened.
A disaster prevention system characterized by this.

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