JP7379621B2 - disaster prevention system - Google Patents

Description

The present invention relates to a disaster prevention system that monitors abnormalities in a disaster prevention monitoring area by connecting terminal devices such as reporting devices and detectors installed in the disaster prevention monitoring area to a disaster prevention receiving board.

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

Such emergency facilities include fire detectors, manual notification devices, and emergency telephones for monitoring and reporting fires, as well as fire hydrant systems for extinguishing fires and preventing the spread of fire. In order to protect the inside of the duct from fire, water spray equipment that sprays fire extinguishing water from a water spray head is installed, and a disaster prevention receiver panel is installed to monitor and control the terminal equipment of these emergency facilities, creating a tunnel disaster prevention system. are doing.

Tunnel disaster prevention systems, which consist of a disaster prevention receiver and terminal equipment, are broadly divided into R-type transmission systems and P-type direct transmission systems. The R-type transmission system connects terminal devices such as fire detectors with addresses set to transmission lines, and enables individual management of detection and control for each terminal device through transmission control. In the P-type direct transmission system, terminal devices are divided into predetermined sections according to their types, and a plurality of terminal devices belonging to the same section are connected to signal lines drawn out for each section, and detection and control are performed for each signal line.

By the way, in the P-type direct transmission type tunnel disaster prevention system, the terminal equipment such as the manual notification device, the fire hydrant activation device, the duct temperature detector, etc. has the signal output section by operation or detection configured as a non-voltage a contact switch, A non-voltage A contact switch is connected to the signal line drawn out from the disaster prevention receiver panel. The non-voltage a contact switch is normally off in the monitoring state, and is turned on by operation or detection operation to output a non-voltage contact signal.

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

For example, in the case of a fire notification signal from a manual notification device, the disaster prevention receiver panel performs control operations such as displaying the fire, controlling the lighting of the response lamp on the terminal side, displaying the manual notification area, and outputting a fire pump activation signal, as well as performing remote monitoring. A fire notification signal is sent to external equipment such as control equipment, television monitoring equipment, variable road information board equipment, tunnel ventilation equipment, lighting equipment, etc., and predetermined response control is performed.

Japanese Patent Application Publication No. 2002-246962 Japanese Patent Application Publication No. 11-128381 Japanese Patent Application Publication No. 2006-106835 Japanese Patent Application Publication No. 2014-157435 Japanese Patent Application Publication No. 2001-143179

In such a conventional P-type direct transmission tunnel disaster prevention system, the insulation deteriorates due to age deterioration of the signal line (external line cable) connecting the terminal equipment, and the signal line connecting the terminal equipment deteriorates over time. When a current exceeding that expected under normal monitoring conditions flows through the area, the disaster prevention receiver panel determines that the signal has been received by the operation or detection operation of the terminal equipment, and issues an alarm. Other equipment such as information board equipment, tunnel ventilation equipment, and lighting equipment are linked, and tunnels are often closed to traffic.

By the way, if a fire signal is received by the disaster prevention receiver and a fire alarm is output, or if a fault in the signal line is detected and a fault alarm is output, the fire signal will be detected during the subsequent investigation process. The measurement history measured by the current monitoring device may be displayed for the fire line or fault line where a fault has been detected, and the state of the fire line or fault line may be investigated.

The current detection device measures the current of the signal line periodically, for example once a day, and stores it as a measurement history. In addition to monitoring and controlling the disaster prevention receiver panel, operational tests are conducted on line failures such as signal line disconnections and periodic inspections of terminal equipment, and the measurement history includes information such as line failures and line tests in progress. It is effective to read out the historical information and find out what condition the fire line or faulty line was in.

However, if the measurement history includes incidental information such as a line failure or a line test in progress, it takes time and effort to display and distinguish the huge amount of data measured at regular intervals on the screen.

In addition, conventionally, the current monitoring device was installed in a separate housing from the disaster prevention receiver, so there is also a transmission function and processing function that sends fire information, fault information, etc. from the disaster prevention receiver to the current measurement device and stores it along with the measurement history. There is also the problem that the equipment configuration and processing become complicated.

SUMMARY OF THE INVENTION An object of the present invention is to provide a disaster prevention system that can simply and easily grasp information on signal line conditions such as current value abnormalities and line failures other than abnormalities occurring in a disaster prevention monitoring area.

(Disaster prevention system 1)
The present invention monitors an abnormality that occurs in a disaster prevention monitoring area based on a predetermined signal transmitted via a signal line from a terminal device placed corresponding to at least the disaster prevention monitoring area, and also monitors the current value flowing through the signal line. In a disaster prevention system equipped with a control unit that monitors abnormalities that occur in signal lines based on
A display section that is controlled by the control section and displays the measurement results of the current value measured to monitor the status of the signal line, and a disaster prevention monitoring area that is provided in a common casing with the display section and is controlled by the control section. a second display section that displays predetermined information regarding the abnormality that has occurred in the signal line and the abnormality that has occurred in the signal line;
The display section and the second display section are characterized in that they are arranged in such a mutual positional relationship that they may not be visible at the same time.

(Disaster prevention system 2)
The present invention monitors an abnormality that occurs in a disaster prevention monitoring area based on a predetermined signal transmitted via a signal line from a terminal device placed corresponding to at least the disaster prevention monitoring area, and also monitors the current value flowing through the signal line. In a disaster prevention system equipped with a control unit that monitors abnormalities that occur in signal lines based on
A display section that is controlled by the control section and displays the measurement results of the current value measured to monitor the status of the signal line, and a disaster prevention monitoring area that is provided in a common casing with the display section and is controlled by the control section. a second display section that displays predetermined information regarding the abnormality that has occurred in the signal line and the abnormality that has occurred in the signal line;
The display section is characterized in that it is arranged at a position where it may become visible even from a position where the second display section is not visible.

(Arrangement of display section and second display section)
Further, a casing including the display section and the second display section is provided with a door that can be opened and closed by rotating around the front of the casing,
The second display section is arranged so as to be visible from the front of the housing when the door is closed,
The display section is arranged inside the casing on the back side of the door when the door is closed so that it can be seen from a position where the second display section is not visible when the door is opened.

(Disaster prevention receiver housing)
The housing including the display section and the second display section is provided with a control section.

(basic effect)
The present invention monitors an abnormality that occurs in a disaster prevention monitoring area based on a predetermined signal transmitted via a signal line from a terminal device placed corresponding to at least the disaster prevention monitoring area, and also monitors the current value flowing through the signal line. In a disaster prevention system equipped with a control unit that monitors abnormalities that occur in a signal line based on the control unit, a display unit that displays the measurement results of a current value that is controlled by the control unit and is measured to monitor the state of the signal line. and a second display section that is provided in a common housing with the display section and that is controlled by the control section and displays predetermined information regarding an abnormality that has occurred in the disaster prevention monitoring area and an abnormality that has occurred in the signal line, The display section is arranged at a position where it is not visible at the same time as the second display section, or arranged so that it is visible even from a position where the second display section is not visible, and more specifically includes a display section and a second display section. For example, the casing of a disaster prevention reception board is provided with a door that can be opened and closed by rotating around the front of the casing, and the second display section is arranged so that it can be seen from the front of the casing when the door is closed. The display section is placed inside the casing on the back side of the door when the door is closed, so that it can be seen from a position where the second display section is not visible when the door is opened. You can select the display section to view at the same time and take necessary measures. Furthermore, because the display section is placed in a position where it is not visible at the same time as the second display section, or it is placed so that it can be seen even from a position where the second display section is not visible, there are positions where only one display section can be seen. This makes it possible to check only the display on the display section that you want to check.

Explanatory diagram showing an overview of the tunnel disaster prevention system Explanatory diagram showing the external appearance of the disaster prevention reception panel Explanatory diagram showing the state in which the sub-monitor device is visible when the panel door of the disaster prevention reception board is opened. Block diagram showing an overview of the functional configuration of the tunnel disaster prevention system Explanatory diagram showing the automatic measurement screen of the sub monitor device used for automatic measurement and the automatic measurement screen of the main monitor device Explanatory diagram showing the manual measurement screen of the sub monitor device used for manual measurement and the manual measurement screen of the main monitor device Explanatory diagram showing the measurement record screen displayed on the sub monitor device and the measurement record screen displayed on the main monitor device Explanatory diagram showing the measurement record screen with the second page displayed on the sub monitor device and the measurement record screen with the second page displayed on the main monitor device Explanatory diagram showing the abnormality history screen displayed on the sub monitor device and the abnormality history screen displayed on the main monitor device

[Overview of tunnel disaster prevention system]
FIG. 1 is an explanatory diagram showing an overview 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 tunnels for a motorway, and the up-line tunnel 1a and the down-line tunnel 1b are connected by an evacuation connecting shaft 2.

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

The fire hydrant device 18 stores a hose with a nozzle inside the fire hydrant door, and in the event of a fire, the fire hydrant door is opened and the hose with a nozzle is pulled out, and when the fire hydrant valve opening/closing lever is opened, fire extinguishing water is discharged. 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. In this way, the fire hydrant device 18 is provided with the fire hydrant valve open/close detection switch 14 and the manual notification device 16 as terminal devices, and when the non-voltage a contact switch functioning as a contact means is turned on, a fire hydrant detection signal or a pump A start signal and a fire notification signal are output.

The fire hydrant device 18 is equipped with a pump start switch used by the fire brigade, but since it is the same switch that outputs the same pump start signal as the fire hydrant valve open/close detection switch 14, the following will be explained below. This will be explained as a fire hydrant valve opening/closing detection switch (including a pump starting switch) 14. Further, the manual notification device 16 is installed not only in the fire hydrant device 18 but also in the emergency telephone box, but in the following explanation, the manual notification device provided in the fire hydrant device 18 will be explained as a representative.

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

Fire detectors are installed, for example, at intervals of 25 meters or 50 meters along the longitudinal wall of the tunnel, and monitoring areas are set on both sides, 25 meters or 50 meters on the left and right, to detect flames caused by a fire and issue a fire alarm. .

The automatic valve device constitutes water spray equipment, and the main valve is opened by remote opening control of the operating electric valve, and fire extinguishing water is sprayed from multiple water spray heads installed in the longitudinal direction of the upper part of the tunnel wall. to protect the tunnel structure from fire.

The temperature detector inside the duct is placed in the duct where the pipes and cables are laid inside the lifeguard passage in the longitudinal direction of the tunnel.It detects the temperature rise inside the duct due to a cable fire, etc., and is a non-voltage device that functions as a contact means. A temperature detection signal is output when the a contact switch is turned on.

Disaster prevention reception panels 10 are installed at monitoring centers and the like 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 board 10 is provided with a current monitoring function of monitoring the current of the P-type signal line connected to the terminal equipment.

P-type signal lines 12-1 to 12-n are drawn out from the disaster prevention receiving panel 10 into each of the predetermined sections divided in the longitudinal direction of the tunnel into 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.

Furthermore, for the duct temperature detectors installed in the duct, a P-type signal line is similarly drawn out for each section, and multiple duct temperature sensors installed in each section are connected. However, illustration is omitted. Furthermore, the signal lines 12-1 to 12-n may be referred to as signal lines 12 if 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 a non-voltage a contact switch provided in each of the fire hydrant valve open/close detection switch 14 of the fire hydrant device 18, the manual notification device 16, and the duct temperature detector. In such a case, the pump activation signal, fire report signal, and temperature detection signal are sent to the disaster prevention receiving panel 10 by turning on the voltageless A contact switch and flowing line current through each operation or detection operation.

In addition to the fire hydrant system 18, fire detector, and automatic valve system, emergency facilities for the tunnel include fire pump equipment 20, duct cooling pump equipment 22, IG slave station equipment 24, ventilation equipment 28, and alarm display board equipment. 30, radio rebroadcasting equipment 32, television monitoring equipment 34, lighting equipment 36, etc. are installed, and except for connecting IG slave station equipment 24 with a data transmission line, other equipment is connected to P-type signal lines for disaster prevention. They are individually connected to the receiving board 10. Here, the IG slave station equipment 24 is a communication equipment that connects the disaster prevention receiving board 10 and the remote monitoring and control equipment 26, which is a host equipment provided outside, via the network 25.

The ventilation equipment 28 is equipment that generates a flow of air in the longitudinal direction of the tunnel by giving energy to the air in the tunnel by high blowing wind velocity generated by the operation of a jet fan installed on the ceiling side of the tunnel.

Further, the alarm display board equipment 30 is equipment that notifies users of the tunnel of abnormalities within the tunnel by displaying them on an electronic display board. The radio rebroadcasting equipment 32 is equipment that allows drivers and the like to receive information from road administrators inside the tunnel. The television monitoring equipment 34 is equipment for checking the scale and location of a fire, operating water spray equipment, and grasping the situation inside the tunnel when conducting evacuation guidance. The lighting equipment 36 is equipment that drives and manages lighting equipment in the tunnel.

[Disaster prevention receiver monitor device]
FIG. 2 is an explanatory diagram showing the external appearance of the disaster prevention receiver, with FIG. 2(A) showing the front and FIG. 2(B) showing the side. FIG. 3 is an explanatory diagram showing the state in which the sub-monitor device is visible when the panel door of the disaster prevention receiver is opened.

As shown in FIG. 2, the disaster prevention receiving board 10 has a box-shaped housing 60 that is open from the front and back, and a panel door 62 that can be opened and closed by operating a handle on the front side. , a back door 63 is provided which can be opened and closed by bundle operation.

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 section 64 is placed below it. Predetermined information regarding tunnel disaster prevention monitoring is displayed on the screen of the main monitor device 44.

As shown in FIG. 3, when the panel door 62 of the disaster prevention receiver 10 is opened, the sub-monitor device 46 disposed on the support frame 68 inside the housing 60 appears, and the current value measurement of the signal line is displayed on the screen of the sub-monitor device 46. Results and judgment results can be displayed.

[Disaster prevention receiver configuration]
FIG. 4 is a block diagram schematically showing 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, and the control unit 40 is a function realized by, for example, executing a program, and the hardware includes various inputs including a CPU, memory, and AD conversion port. Use a computer circuit or the like with an output port or the like.

The control unit 40 is provided with a P-type transmission unit 42 that connects various terminal devices installed in the tunnel through a P-type signal line 12, and a main monitor device 44, a sub-monitor device 46, an alarm section 48 equipped with a speaker, a buzzer, an alarm indicator light, etc., a display section 50 equipped with various indicator lights, and an operation section 52 equipped with various switches are provided, and furthermore, IG slave station equipment 24, ventilation equipment 28, A P-type transmission unit 54 is provided in which the alarm display board equipment 30, the radio rebroadcasting equipment 32, the television monitoring equipment 34, the lighting equipment 36, the fire pump equipment 20, and the 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 a monitoring control unit 56 and a current monitoring unit 58 as functions realized by executing a program.

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

Further, when receiving a fire report signal (fire signal) by operating the manual notification device 16 provided in the fire hydrant device 18, for example, the supervisory control unit 56 causes the alarm unit 48 to emit a main sound and displays a fire representative on the display unit 50. Furthermore, a fire display and a manual notification section are displayed on the screen of the main monitor device 44, and a response signal is transmitted to the fire hydrant device 18 to turn on the response lamp.

In addition, when the supervisory control unit 56 receives a fire hydrant activation signal that is output when the fire hydrant valve opening/closing detection switch 14 is turned on by opening the fire hydrant valve opening/closing lever provided in the fire hydrant device 18, the supervisory control unit 56 causes the fire pump equipment 20 to start the pump. Controls activation by sending signals.

Further, the monitoring control unit 56 controls other equipment by transmitting a fire notification signal to the remote monitoring and control equipment 26 via the IG slave station equipment 24 to cause an alarm, and controlling to display a manual notification section by the TV monitoring equipment 34. The alarm display board equipment 30 performs control to display a fire report in the manual notification compartment, the ventilation equipment 28 controls to ventilate the manual notification compartment, the lighting equipment 36 controls to illuminate the manual notification compartment, etc.

Furthermore, when the temperature inside the duct rises and a temperature detection signal is received from the duct temperature detector, the monitoring control unit 56 outputs a pump start signal to the cooling pump equipment 22 and starts watering from the head installed inside the duct. control to cool the inside of the duct.

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

The monitor control unit 56 monitors the signal line 12 for a disconnection fault by connecting a terminating resistor to the end of the signal line 12 and passing a disconnection monitoring current, and detects a disconnection fault when the disconnection monitoring current is interrupted.

Further, when performing an operation test of the terminal equipment connected to the signal line 12 due to periodic inspection or the like, the supervisory control unit 56 displays the results of the operation test on the main monitor device 44, and also displays information indicating that the test is in progress. Control is performed to notify the current monitoring unit 58 of line test information including the line number and the line number.

(Current monitoring section)
The current monitoring unit 58 measures the current value of the signal line 12 connected to a terminal device equipped with a 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 set to a predetermined upper limit. If the current value is out of the threshold range determined by the current value and the lower limit value, it is determined that the current value is abnormal, and control is performed to store the measurement results 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, by AD converting and reading the detection voltage of a current detection resistor inserted into the signal line 12, and reading the current value measured for a predetermined period of time to remove the influence of noise. Find the average value.

Here, the current value measurement by the current monitoring unit 58 includes fixed period measurement, automatic measurement, and manual measurement.

The periodic measurement of the current monitoring unit 58 involves sequentially measuring the current values of all the signal lines 12 at predetermined intervals, for example, once a day, and detecting the current when the measured current value is out of a predetermined threshold range. A value abnormality is determined, and further control is performed to generate a measurement history including line failure information and line testing information notified from the monitoring control unit 56 and to store it in the memory.

Further, when displaying the measurement history on the sub-monitor device 46, the current monitoring unit 58 displays the measurement history of each signal line by color-coding corresponding to the abnormal current value, line failure information, or line test information, and further, Even when displaying the measurement history on the main monitor device 44, control is performed to display the history information in the same color coding as on the sub-monitor device 46.

The current monitoring unit 58 automatically measures the current value by sequentially measuring the current value flowing through the signal line of the terminal device installed in the tunnel selected as the measurement target when an automatic measurement operation by the sub-monitor device 46 is detected. The measured current value for each signal line and the measurement results, including current value abnormality when the measured current value is outside a predetermined threshold range, are color-coded according to the current abnormal value, line failure information, or line test intermediate information. When the automatic measurement results are displayed on the sub-monitor device 46 and the automatic measurement results are displayed on the main monitor device 44, control is performed to display the measurement results on the main monitor device 44 in the same color-coded manner as on the sub-monitor device 46.

Manual measurement of the current value by the current monitoring unit 58 is such that when the sub-monitor device 46 detects a manual measurement operation including selection of a signal line, the current value flowing through the selected signal line is measured, and the measured current value is determined as a predetermined value. If the current value is out of the threshold range, it is determined that the current value is abnormal, and the measurement results from this manual measurement are displayed on the sub-monitor device 46 in different colors according to the abnormal current value, line failure information, or line test information. When displaying manual measurement results on the monitor device, control is performed to display the results on the main monitor device 44 in the same color-coded manner as on 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 a current value abnormality has been determined from the current value measurement history stored in the memory, and , the abnormality history is displayed on the sub-monitor device 46, which is color-coded according to the line failure information or the information during the line test, and furthermore, when the abnormality history is displayed on the main monitor device 44, it is also color-coded in the same way as the sub-monitor device 46. Control is performed to display the abnormality history on the main monitor device 44.

[Periodic measurement of current value]
FIG. 5 is an explanatory diagram showing the automatic measurement screen of the sub monitor device and the automatic measurement screen of the main monitor device used for automatic measurement. The sub-monitor screen 70 shown in FIG. 5(A) has an automatic measurement button 74, a manual measurement button 76, a measurement record button 78, and an abnormality history button 80 arranged as screen development buttons at the bottom of the screen, as shown by hatching. When the automatic measurement button 74 is operated, the automatic measurement screen 82 is displayed.

At the upper right of the sub-monitor screen 70, an on button 92 and an off button 94 are arranged for periodic measurement, and the on button 92 is set to the on state as an initial setting, so that the current monitoring unit 58 The current values of all signal lines 12 are sequentially measured every cycle, for example, once a day, and if the measured current value is outside a predetermined threshold range, a current value abnormality is determined, and the measurement results are stored in the measurement history. Periodic measurements are performed that are stored in memory as .

When automatically measuring the current value using the sub-monitor screen 70 that has been switched to the automatic measurement screen 82 in FIG. Cancels fixed period measurement. Next, for example, "uplink manual notification" is selected as the test target in the type selection section 84, and the start button 96 located in automatic measurement is operated. Note that the buttons operated on the screen are indicated by hatching.

This automatic current value measurement operation using the sub-monitor screen 70 is detected by the current monitoring unit 58, and the current values of all signal lines for the manual reporting device placed in the selected uplink tunnel are sequentially measured, and the automatic measurement details are Measured values are displayed in information 90. Furthermore, each time the signal line is automatically measured, the measured value is displayed in the measured value frame 100 at the lower right, and the measurement time is displayed in the measurement time frame 102. Furthermore, during automatic measurement, the background color of the measurement in progress display 86 at the top left of the screen changes to notify that automatic measurement is being performed.

In the center of the automatic measurement screen 82, a list of information is displayed for each signal line as automatic measurement detailed information 90, divided into the following items: line number, date and time, upper limit/lower limit, measured value, and judgment.

Here, for line number 004, the measured value is 1.25 mA, which exceeds the upper limit value 1.00 mA, so it is determined that the current value is abnormal, and the line for line number 004 is determined to be abnormal in the current value. The background color is displayed in yellow, for example, as shown by the mesh corresponding to the . At the same time, the background color within the frame of the current value abnormality occurrence display 88 is also set to yellow, as shown by the mesh.

Furthermore, when the automatic measurement shown in FIG. 5A is performed, if the line test information has been notified from the monitoring control unit 56 for line number 007, the line for line number 007 will be as shown in sand, The background color is displayed in green, for example.

Furthermore, when the automatic measurement in FIG. 5A is performed, if line failure information has been notified from the monitoring control unit 56 for line number 008, the line for line number 008 will be as shown by parallel hatching. The background color is displayed in orange, for example.

This color-coded display of the automatic measurement detailed information 90 allows you to easily identify the measurement result in which an abnormal current value has been determined in yellow, the measurement result for the line under test in green, or the measurement result in orange without looking at the contents of the measurement result. You can see at a glance whether the measurement results are for the line that caused the line failure.

The automatic measurement of the current value can be ended by operating the stop button 98. Note that upon completion of the automatic measurement, the measurement results of the automatic measurement may be stored in the memory as history information.

Furthermore, when the automatic measurement of the current value is completed, by operating the periodic measurement ON button 92, it is possible to return to the periodic measurement of the current value.

FIG. 5(B) shows the main monitor screen 72 displaying the results of automatic measurement of current values. If necessary, the automatic measurement screen 82 can be displayed on the main monitor screen 72 in addition to the sub-monitor screen 70. can.

Since the automatic measurement screen 82 of the main monitor screen 72 shown in FIG. 5(B) does not require screen operations, the automatic measurement screen 82 of the sub-monitor screen 70 shown in FIG. 5(A) is displayed without operation buttons. For example, a type selection section 84 indicating the selected "upstream manual notification", a measurement in progress display 86, a current value abnormality occurrence display 88, and automatic measurement detailed information 90 are displayed.

In addition, regarding the automatic measurement detailed information 90, similar to the sub-monitor screen 70 of FIG. The frame of the current value abnormality occurrence display 88 is also displayed with a yellow background color as shown by the mesh. Further, the background color of line number 007 is displayed in green, for example, based on the notification of line test information, and the background color of line number 008 is displayed in orange, for example, based on the line failure information.

For this reason, the automatic measurement screen 82 on the main monitor screen 72 is also displayed in different colors depending on whether the current value is abnormal, line testing is in progress, or line failure. You can see at a glance whether the measurement result is for the line under test (green) or the line that has a fault (orange).

[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 and a manual measurement screen of the main monitor device.

As shown in FIG. 6(A), when the manual measurement button 76 arranged at the bottom of the sub-monitor screen 70 is operated, the screen is switched to the illustrated manual measurement screen 104.

When manually measuring the current value using the sub-monitor screen 70 that has been switched to the manual measurement screen 104, first operate the off button 94 placed in the periodic measurement at the top right to cancel the periodic measurement. . Next, select, for example, "uplink manual notification" as the test target in the type selection section 84, and further select the signal line to be measured by operating the selection buttons 108 and 110 arranged for manual measurement. .

Here, the selection of the signal line indicates the currently selected line by changing the background color of the line number in the manual measurement detailed information 106 to blue, for example, and when the selection buttons 108 and 110 are operated, the background color of the line number changes to blue. You can select any line number by moving up or down. After selecting the line number, operate the start button 112 located for 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 with line number 004 for the manual notification device placed in the uplink tunnel is measured, and the manual measurement is performed. The measured value is displayed in detailed information 106. Furthermore, when manual measurement is started, the measurement in progress display 86 changes to notify that manual measurement is being performed.

Here, the measured value of line number 004, which was manually measured, is 1.25 mA, which exceeds the upper limit of 1.00 mA, so it is determined that the current value is abnormal, and the line for line number 004 is determined to be abnormal current value. The background color is displayed in yellow, for example, as shown by the mesh corresponding to the . At the same time, the inside of the frame of the current value abnormality occurrence display 88 is also displayed with a yellow background color as shown by the mesh.

Note that line number 007 is not selected for manual measurement, but based on the notification of line test information from the supervisory control unit 56, its background color is displayed in green, for example, as shown in sand, and the line number 008 is not selected for manual measurement, but based on the notification of line failure information from the monitoring control unit 56, its background color is displayed in orange, for example, as shown by parallel hatching. Therefore, for example, it can be seen at a glance that line number 008 is causing a line failure, and it becomes possible to take measures such as selecting line number 008 and performing manual measurements to investigate the situation.

If you want to end the manual measurement of the current value, you can return to regular periodic measurement of the current value by operating the manual measurement stop button 114 and then the periodic measurement on button 92. Note that upon completion of the manual measurement, the measurement results of the manual measurement may be stored in the memory as history information.

The manual measurement screen 104 can also be displayed on the main monitor screen 72 in FIG. 6(B) as needed. Since the manual measurement screen 104 on the main monitor screen 72 does not require screen operations, the manual measurement screen 104 on the sub-monitor screen 70 shown in FIG. 6(A) is displayed without operation buttons. A type selection section 84 indicating "upstream manual notification", a measurement in progress display 86, a current value abnormality occurrence display 88, and manual measurement detailed information 106 are displayed.

In addition, regarding the manual measurement detailed information 106, similar to the sub-monitor screen 70 in FIG. , the background color thereof is displayed in yellow, and the frame of the current value abnormality occurrence display 88 is also displayed in a yellow background color as shown by the mesh. Further, the background color of line number 007 is displayed in green, for example, based on the notification of line test information, and the background color of line number 008 is displayed in orange, for example, based on the line failure information.

For this reason, the manual measurement screen 104 on the main monitor screen 72 is also displayed in different colors according to current value abnormality, line test in progress, and line failure. You can see at a glance whether the measurement results are for a line in the middle or a line that has a line failure.

[Measurement history display]
FIG. 7 is an explanatory diagram showing the measurement recording screen of the sub-monitor device and the measurement recording screen of the main monitor device, which display the measurement history of current values.

As shown in FIG. 7(A), when the measurement record button 78 located at the bottom of the sub-monitor screen 70 is operated, the screen is switched to the measurement record screen 114 shown in the figure, and the detailed measurement history information 116 displays the information read out from the memory. The measurement history is displayed.

On the right side of the measurement record screen 114, a page display 118, page switching buttons 120, 122, a file save button 124, and a memory eject button 126 are arranged. By operating page switching buttons 120 and 122, pages of measurement history detailed information 116 can be switched, and the first page is displayed here. File save button 124 instructs to store the measurement results in memory. The memory retrieval button 126 is operated to retrieve the memory storing the current value measurement information from the disaster prevention receiver panel 10.

The measurement history detailed information 116 displayed in the center of the measurement record screen 114 is divided into the following items: line number indicated by No., date and time, item, upper/lower limit value, measured value, and judgment, for each signal line. Information will be listed.

Here, for line number 004, the measured value is 1.25 mA, which exceeds the upper limit value of 1.00 mA, so it is determined that the current value is abnormal by displaying "NG". Since the measured values of the other line numbers are within the range of the upper and lower limits, they are determined to be normal by displaying "OK". Furthermore, the background color of the line number 004 is displayed in yellow, as shown by the mesh, corresponding to the determination of abnormality in the current value.

The measurement recording screen 114 can also be displayed on the main monitor screen 72 in FIG. 7(B) if necessary. Since the measurement record screen 114 of the main monitor screen 72 does not require screen operations, it is displayed without operation buttons from the measurement record screen 114 of the sub monitor screen 70 shown in FIG. 7(A). Detailed information 116, page display 118, and page switching buttons 120 and 122 are arranged.

Regarding the detailed measurement history information 116, as in the sub-monitor screen 70 in FIG. Is displayed. For this reason, the measurement record screen 114 of the main monitor screen 72 is also displayed in yellow in accordance with the current value abnormality, so that it can be seen at a glance that it is the signal line in which the current value abnormality has occurred.

FIG. 8 is an explanatory diagram showing a measurement recording screen with the second page displayed on the sub-monitor device and a measurement recording screen with the second page displayed on the main monitor device.

On the sub-monitor screen 70 in FIG. 8A, the second page is displayed in the detailed measurement history information 116 by operating the page switching button 122.

In the measurement history detailed information 116, the background color of line number 007 is set to green, for example, based on the notification of line test information, and the background color of line number 008 is set to, for example, orange based on the line failure information. is set to .

Regarding the measurement history detailed information 116 on the main monitor screen 72 shown in FIG. 8(B), the background color of line number 007 is green, for example, based on the notification of line test information, similar to the sub-monitor screen 70 in FIG. 8(A). Further, the background color of the line number 008 is set to, for example, orange based on the line failure information.

For this reason, the measurement record screen 114 on the main monitor screen 72 is also displayed in green to correspond to the line test, and orange to correspond to the line failure. You can see something at a glance.

[Abnormality history display]
FIG. 9 is an explanatory diagram showing an abnormality history screen of the sub monitor device and an abnormality history screen of the main monitor device. As shown in FIG. 9(A), when the abnormality history button 80 arranged at the bottom of the sub-monitor screen 70 is operated, the screen is switched to the illustrated abnormality history screen 130.

When the current monitoring unit 58 detects a switching operation to the abnormality history screen 130, the current monitoring unit 58 extracts the measurement history of the signal line in which a current value abnormality has been determined from the current value measurement history stored in the memory, and displays the abnormality history. Detailed information 132 is displayed.

The detailed abnormality history information 132 is displayed in a list format divided into the line number indicated by No., date and time, item, upper limit value, lower limit value, measured value, and judgment. For example, in the line of line number 004, the tunnel ``Uplink manual notification'' is displayed as the name and type of terminal device, and ``NG'' is displayed, indicating an abnormality exceeding the upper limit. Furthermore, in the line of line number 008, "uplink manual report" is displayed as the tunnel name and terminal device type, and "NG" indicating an abnormality below the lower limit is displayed.

Here, the line with line number 004 is displayed with a yellow background color, as shown by the mesh, corresponding to the determination of abnormality in the current value. Furthermore, the background color of the line for line number 008 is displayed in orange, for example, as indicated by parallel hatching, corresponding to the line failure information.

Regarding the detailed abnormality history information 132 on the main monitor screen 72 shown in FIG. 9(B), as in the sub-monitor screen 70 shown in FIG. is set to yellow, and the background color of the line with line number 008 is set to, for example, orange in response to line failure information.

[Modification of the present invention]
(color-coded display)
In the above embodiment, the measurement history or measurement results are displayed in colors corresponding to abnormal current values, line failures, and line tests, but the present invention is not limited to this. Also good.

Further, when multiple of current value abnormality, line failure, and line test are occurring for the same signal line, color-coded display and color-coded switching display are performed according to a predetermined priority order.

In addition, in the above embodiment, when displaying measurement results on the main monitor device, the display is done in the same color as the sub monitor device, but the present invention is not limited to this. The measurement results may be displayed on the main monitor device using colors with possible similar hues.

(Main monitor device)
In the above embodiment, the display screen of the sub monitor device is provided with operation buttons necessary for current value measurement and history display, and the display screen of the main monitor device is provided with only operation buttons necessary for display. The display screen has the same operation buttons as the display screen of the sub-monitor device, so that operations such as line current periodic measurement, automatic measurement, manual measurement, measurement recording, and abnormality history can be performed from the main monitor device. The screen may be reflected on or fed back to the display screen of the main monitor device.

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

1a: Up line tunnel 1b: Down line 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: Remote monitoring and control equipment 28: Ventilation equipment 30: Alarm display board equipment 32: Radio rebroadcast equipment 34: TV monitoring equipment 36: Lighting equipment 40: Control parts 42, 54: P type Transmission section 44: Main monitor device 46: Sub monitor device 48: Alarm section 50: Display section 52: Operation section 56: Monitoring control section 58: Current monitoring section 60: Housing 62: Panel door 70: Sub monitor screen 72: Main monitor screen 82: Automatic measurement screen 104: Manual measurement screen 114: Measurement record screen 130: Abnormality history screen

Claims (4)

Abnormalities occurring in the disaster prevention monitoring area are monitored based on a predetermined signal transmitted via a signal line from at least a terminal device placed corresponding to the disaster prevention monitoring area, and based on the current value flowing through the signal line. In a disaster prevention system equipped with a control unit that monitors abnormalities occurring in the signal line,
a display section that is controlled by the control section and displays a measurement result of a current value measured for monitoring the state of the signal line; and a display section that is provided in a common housing with the display section and that is controlled by the control section. a second display section that displays predetermined information regarding an abnormality that has occurred in the disaster prevention monitoring area and an abnormality that has occurred in the signal line;
The disaster prevention system is characterized in that the display section and the second display section are arranged in a mutual positional relationship such that both may not be visible at the same time.
Abnormalities occurring in the disaster prevention monitoring area are monitored based on a predetermined signal transmitted via a signal line from at least a terminal device placed corresponding to the disaster prevention monitoring area, and based on the current value flowing through the signal line. In a disaster prevention system equipped with a control unit that monitors abnormalities occurring in the signal line,
a display section that is controlled by the control section and displays a measurement result of a current value measured for monitoring the state of the signal line; and a display section that is provided in a common housing with the display section and that is controlled by the control section. a second display section that displays predetermined information regarding an abnormality that has occurred in the disaster prevention monitoring area and an abnormality that has occurred in the signal line;
The disaster prevention system is characterized in that the display section is arranged at a position where the second display section may be visible even from a position where the second display section is not visible.
The disaster prevention system according to claim 1 or 2,
A casing including the display section and the second display section is provided with a door that can be opened and closed by rotating around the front of the casing,
The second display unit is arranged at a position where it is visible from the front of the housing when the door is closed,
The display section is arranged at a position inside the casing on the back side of the door when the door is closed, where it may be visible from a position where the second display section is not visible when the door is opened. A disaster prevention system characterized by:
The disaster prevention system according to any one of claims 1 to 3,
A disaster prevention system, wherein a housing including the display section and the second display section is provided with the control section.

Images