Disaster prevention system

Abstract

To easily confirm necessary display without depending on a specific screen display part, to facilitate handling of a plurality of different screen display parts, and to improve convenience when the plurality of different screen display parts are provided.SOLUTION: When the switching button 64 of the main monitor screen 4410 is operated in a state in which the fire monitoring content 66 is displayed on the main monitor screen 4410, the line current monitoring content 6710 is displayed on the main monitor screen 4410, and when the switching button 70 of the sub monitor screen 4610 is operated in a state in which the line current monitoring content 67 is displayed on the sub monitor screen 4610, the fire monitoring content 6610 is displayed on the sub monitor screen 4610. 4610 4410.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a disaster prevention system that monitors abnormalities by connecting terminal devices such as detectors that detect abnormalities such as fires to a disaster prevention receiving panel. [Background technology]

[0002] Conventionally, disaster prevention systems have been installed in tunnels on expressways and other roads to monitor for abnormalities such as fires that occur within the tunnel (monitored area). Disaster prevention systems include terminal devices such as detectors that detect abnormalities and reporting devices that report abnormalities, as well as disaster prevention receiving panels to which these terminal devices are connected via signal lines.

[0003] When insulation deteriorates due to aging or other factors in the signal line connecting the disaster prevention receiving panel and the terminal equipment, the line current flowing through the signal line changes, and this change in current often causes the disaster prevention receiving panel to mistakenly think that it has received a signal from the terminal equipment and malfunction. Also, if a break occurs in the signal line, it will not be able to receive signals from the terminal equipment and will not be able to monitor the monitoring area properly.

[0004] In order to solve problems caused by such signal line failures, the disaster prevention system measures the line current flowing through the signal line, and if the measured line current meets certain conditions, it determines that the current value of the signal line is abnormal and issues an alert.

[0005] In addition, when the disaster prevention receiving panel receives a notification signal from a reporting device or a detection signal from a detector and performs an alarm operation, or when an abnormality in the current value of the signal line mentioned above is determined and an alarm is issued, the measurement history of the line current may be displayed on the disaster prevention receiving panel, etc. during subsequent investigation work to check the state of the signal line from which the signal was transmitted or the signal line on which the fault occurred.

[0006] Furthermore, Patent Document 3 discloses a disaster prevention system that is equipped with a disaster prevention receiving panel that has a line current monitoring function for monitoring the line current flowing in the signal line, and has a main monitor device (first screen display unit) that displays details related to monitoring abnormalities in the monitoring area on the front of a door-type housing, and a sub-monitor device (second screen display unit) inside the housing that displays details related to monitoring the line current flowing in the signal line, thereby making it possible to monitor the line current flowing in the signal line and check the line current measurement history on the disaster prevention receiving panel.Furthermore, the disaster prevention receiving panel of Patent Document 4 is capable of displaying details related to monitoring the line current that are displayed on the sub-monitor device on the main monitor device. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-246962 [Patent Document 2] Japanese Patent Application Publication No. 11-128381 [Patent Document 3] Japanese Patent Application Publication No. 2018-032114 [Patent Document 4] Japanese Patent Application Publication No. 2018-045541 Summary of the Invention [Problem to be solved by the invention]

[0008] However, the disaster prevention receiving panel equipped with a main monitor device and a sub-monitor device as disclosed in Patent Documents 3 and 4 has several problems.

[0009] First, there is a problem that the sub-monitor cannot confirm the abnormality monitoring information displayed on the main monitor. Therefore, in order to confirm the abnormality monitoring information, it is necessary to check the main monitor, and depending on the situation, it may be necessary to close the front door structure or move to a position where the main monitor's display content can be confirmed, which can be inconvenient when checking the abnormality monitoring information. Furthermore, if the main monitor breaks down and cannot display the information, it becomes impossible to confirm the abnormality monitoring information.

[0010] The second problem is that because the sub-monitor device is installed inside the housing, it is not possible to check the status of the sub-monitor device unless the front of the housing, which has a door structure, is opened.

[0011] Third, displaying on two monitors consumes a lot of power, which is a problem. The sub-monitor in particular is not a monitor inside the housing that is always visible, and is used for a specific purpose other than monitoring abnormalities in the monitored area, which is the main function of the disaster prevention system, so it consumes a lot of power unnecessarily.

[0012] The present invention aims to provide a disaster prevention system that, when multiple different screen display units are provided, allows the necessary displays to be easily confirmed without relying on a specific screen display unit, and makes it easy to handle multiple different screen display units, thereby improving convenience. [Means for solving the problem]

[0013] (Disaster prevention system) The present invention is a disaster prevention system that connects a predetermined terminal device to a disaster prevention receiving panel to monitor abnormalities, a first screen display unit that displays a predetermined first content related to abnormality monitoring; a second screen display unit that displays a predetermined second content related to monitoring of the line current flowing through the signal line connecting the terminal device; Equipped with When a predetermined first condition is satisfied, a predetermined second content is displayed on the first screen display unit; When a predetermined second condition is satisfied, a predetermined first content is displayed on the second screen display section.

[0014] (Display content switching operation section) a first display content switching operation unit for displaying a predetermined second content on the first screen display unit; a second display content switching operation unit for displaying a predetermined first content on the second screen display unit; Equipped with When a switching operation of the first display content switching operation unit is detected while the first screen display unit is not displaying the predetermined second content, the predetermined first condition is determined to be satisfied, and the predetermined second content is displayed on the first screen display unit; When a switching operation of the second display content switching operation unit is detected while the predetermined first content is not being displayed on the second screen display unit, it is determined that a predetermined second condition is satisfied and the predetermined first content is displayed on the second screen display unit.

[0015] (Initial settings for the display state of the screen display) As an initial setting, the first screen display section is set to display on, and the second screen display section is set to display off.

[0016] (Displays information regarding fault confirmation and maintenance work) The second screen display section can display the predetermined second content as well as the predetermined third content related to fault confirmation and maintenance work. The first screen display unit is capable of displaying predetermined third content when a predetermined third condition is satisfied.

[0017] (Power state switching operation section) The device is provided with a power state switching operation unit that switches the power of each of the first screen display unit and the second screen display unit between on and off.

[0018] (Screen display unit located on the disaster prevention receiving panel) The first screen display unit is disposed at a predetermined position on the outer surface of the disaster prevention receiving panel so that the display content can be seen from outside the disaster prevention receiving panel, The second screen display unit is disposed inside the disaster prevention receiving panel so that the displayed content can be seen from outside the disaster prevention receiving panel under predetermined conditions.

[0019] (Display state switching operation section) A display state switching operation unit for switching the display on and off of the first screen display unit and the second screen display unit is provided at a predetermined position on the outer surface of the disaster prevention receiving panel.

[0020] (Status display section) A status display unit that displays the display status of the second screen display unit is provided at a predetermined position on the outer surface of the disaster prevention receiving panel.

[0021] (Content display section) A content display unit that displays the content displayed on the second screen display unit is provided at a predetermined position on the exterior of the disaster prevention receiving panel.

[0022] (Structure of disaster prevention receiving panel) The exterior of the disaster prevention receiving panel where the first screen display unit is located is made into a door structure, The second screen display unit can be viewed from outside the disaster prevention receiving panel when the outer surface of the disaster prevention receiving panel on which the first screen display unit, which has a door structure, is located, is opened. [Effects of the Invention]

[0023] (Effectiveness of disaster prevention systems) The present invention relates to a disaster prevention system that connects a predetermined terminal device to a disaster prevention receiving panel and monitors for abnormalities. The system includes a first screen display unit that displays a first predetermined content related to abnormality monitoring and a second screen display unit that displays a second predetermined content related to monitoring the line current flowing through the signal line connecting the terminal device. When a first predetermined condition is met, the first screen display unit displays the second predetermined content, and when a second predetermined condition is met, the second screen display unit displays the first predetermined content. This allows for the content related to abnormality monitoring or the content related to monitoring the line current flowing through the signal line to be displayed and checked on any screen display unit without relying on a specific screen display unit. Furthermore, even if a malfunction occurs on one of the screen displays that prevents display, the content can be displayed on the other screen display unit without causing the content to become uncheckable, thereby improving convenience.

[0024] (Effect of display content switching operation section) The device also includes a first display content switching operation unit for displaying a predetermined second content on the first screen display unit, and a second display content switching operation unit for displaying a predetermined first content on the second screen display unit. When a switching operation of the first display content switching operation unit is detected while the predetermined second content is not being displayed on the first screen display unit, the predetermined second content is displayed on the first screen display unit, assuming that a predetermined first condition is met; and when a switching operation of the second display content switching operation unit is detected while the predetermined first content is not being displayed on the second screen display unit, the predetermined first content is displayed on the second screen display unit, assuming that a predetermined second condition is met. This makes it possible to easily switch the content displayed on the first screen display unit and the second screen display unit by operating the display content switching operation unit, thereby improving convenience.

[0025] (Effect of initial setting of display state of screen display section) In addition, the initial setting is to have the display on for the first screen display unit and the display off for the second screen display unit, which makes it possible to reduce power consumption by the amount of display off for the second screen display unit, which displays the monitoring contents of the line current flowing in the signal line, which is different from the main function of the disaster prevention system, which is to monitor abnormalities in the monitored area.

[0026] (Effectiveness of displaying information related to fault confirmation and maintenance work) Furthermore, the second screen display unit can display predetermined third content related to fault confirmation and maintenance work in addition to the predetermined second content, and the first screen display unit can display the predetermined third content when the predetermined third condition is met. This makes it possible to check fault information, including faults occurring in signal lines, and maintenance work, such as local detector test results (pseudo-operation), on the first and second screen display units, making it possible for fault confirmation and maintenance work to be carried out efficiently even by one person.

[0027] (Effect of power state switching operation section) In addition, since the device is provided with a power state switching operation unit that switches the power on and off for each of the first screen display unit and the second screen display unit, it is possible to turn the power off and, for example, replace either the first screen display unit or the second screen display unit, and since it is possible to display just the right amount on either screen display unit, it is possible to continue the monitoring function on one of the screen display units.

[0028] (Effect of the screen display unit installed on the disaster prevention receiving panel) In addition, the first screen display unit is positioned at a predetermined position on the outer surface of the disaster prevention receiving panel so that the display content can be seen from outside the disaster prevention receiving panel, and the second screen display unit is positioned inside the disaster prevention receiving panel so that the display content can be seen from outside the disaster prevention receiving panel under predetermined conditions, making it possible to apply the present invention to disaster prevention receiving panels equipped with conventional main monitor devices and sub-monitor devices.

[0029] (Effect of display state switching operation section) In addition, a display state switching operation unit that switches the display on and off of the first screen display unit and the second screen display unit is provided at a predetermined position on the exterior of the disaster prevention receiving panel.This means that the display on and off of the second screen display unit inside the disaster prevention receiving panel can be switched using the display state switching operation unit without making any modifications to the disaster prevention receiving panel so that the inside of the disaster prevention receiving panel can be seen from outside the disaster prevention receiving panel, making the disaster prevention receiving panel easier to handle and improving convenience.

[0030] (Effect of status display section) In addition, a status display unit that displays the display status of the second screen display unit is provided at a specified position on the exterior of the disaster prevention receiving panel, so that the inside of the disaster prevention receiving panel can be seen from outside the disaster prevention receiving panel without making any modifications to the disaster prevention receiving panel, and it is possible to check the display on / off of the second screen display unit inside the disaster prevention receiving panel using the status display unit without having to directly check the display on the second screen display unit, making the disaster prevention receiving panel easier to handle and improving convenience.

[0031] (Effect of content display section) In addition, a content display unit that displays the content displayed on the second screen display unit is provided at a specified position on the exterior of the disaster prevention receiving panel, so that the inside of the disaster prevention receiving panel can be seen from outside the disaster prevention receiving panel without making any modifications to the disaster prevention receiving panel, and it is possible to check the content displayed on the second screen display unit inside the disaster prevention receiving panel on the content display unit without having to directly check the display on the second screen display unit, making the disaster prevention receiving panel easier to handle and improving convenience. [Brief explanation of the drawings]

[0032] [Figure 1] FIG. 1 is an explanatory diagram showing the configuration of a tunnel disaster prevention system. [Figure 2] FIG. 2 is an explanatory diagram showing the appearance of the disaster prevention receiving panel. [Figure 3] FIG. 10 is an explanatory diagram showing the disaster prevention receiving panel with the panel door open so that the sub-monitor device can be seen from the outside. [Figure 4]FIG. 2 is a block diagram showing the functional configuration of the tunnel disaster prevention system. [Figure 5] FIG. 10 is an explanatory diagram showing an example of a display mode in which a main monitor screen and a sub-monitor screen are arranged side by side. [Figure 6] FIG. 10 is an explanatory diagram showing an example of a main monitor screen displaying fire monitoring content. [Figure 7] FIG. 10 is an explanatory diagram showing an example of a sub-monitor screen that is an all-designated measurement screen. [Figure 8] FIG. 10 is an explanatory diagram showing an example of a sub-monitor screen serving as a selection measurement screen. [Figure 9] FIG. 10 is an explanatory diagram showing an example of a sub-monitor screen serving as a measurement history screen. [Figure 10] FIG. 10 is an explanatory diagram showing an example of a sub-monitor screen serving as a measurement history narrowing down screen. [Figure 11] FIG. 10 is an explanatory diagram showing an example of a sub-monitor screen that is an abnormality history screen. [Figure 12] FIG. 10 is an explanatory diagram showing an example of a sub-monitor screen that is a fire line history screen. [Figure 13] FIG. 10 is an explanatory diagram showing an example of a sub-monitor screen that displays a faulty line history screen. [Figure 14] 10 is an example of a flowchart illustrating line current monitoring control by a current monitoring unit. DETAILED DESCRIPTION OF THE INVENTION

[0033] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a disaster prevention system according to the present invention will be described with reference to the accompanying drawings. However, the present invention is not limited to the following embodiment.

[0034] [Basic concept of the embodiment] First, the basic concept of the embodiment will be described. The embodiment generally relates to a disaster prevention system that connects predetermined terminal devices such as a reporting device and a detector to a disaster prevention receiving panel to monitor abnormalities in a monitoring area, and the disaster prevention system is a concept that includes disaster prevention equipment.

[0035] The disaster prevention system comprises a "first screen display unit" and a "second screen display unit," the "first screen display unit" displays predetermined first content (abnormality monitoring content) related to abnormality monitoring, and the "second screen display unit" displays predetermined second content (line current monitoring content) related to monitoring the line current flowing in the signal line connecting the terminal equipment.

[0036] The "first screen display unit" and the "second screen display unit" may be provided in the disaster prevention system as a specified device equipped with a "first screen display unit" and a "second screen display unit", or may be provided integrally in a disaster prevention receiving panel, like the disaster prevention receiving panel equipped with a main monitor device (first screen display unit) and a sub-monitor device (second screen display unit) discussed in the prior art.

[0037] Furthermore, the first screen display unit and the second screen display unit in a device such as a disaster prevention receiving panel may be arranged arbitrarily, and may, for example, be arranged on the outer surface of the device (disaster prevention receiving panel) so that the displayed content can be seen from outside the device (disaster prevention receiving panel), and the second screen display unit may be arranged inside the device (disaster prevention receiving panel) so that the displayed content can be seen from outside the device (disaster prevention receiving panel) under predetermined conditions. Furthermore, the first screen display unit and the second screen display unit may be arranged so that there may be cases where the displayed content of only one of the screen display units is visible under predetermined conditions.

[0038] Furthermore, the conditions under which the display content of the second screen display unit arranged inside the device (disaster prevention receiving panel) becomes visible from the outside are also arbitrary, and include, for example, a case where the outer surface of the device (disaster prevention receiving panel) on which the first screen display unit is arranged has a door structure, and the display content becomes visible when the outer surface of the device (disaster prevention receiving panel) on which the door-structured first screen display unit is arranged is opened. The door structure is also arbitrary, and includes a sliding door structure, a rotating door structure, etc.

[0039] The "prescribed content regarding abnormality monitoring" displayed on the first screen display section is any content that needs to be displayed, such as the monitoring status when no abnormality has occurred (normal monitoring status) or when an abnormality has occurred, and includes information such as the type of abnormality that has occurred, the location of the abnormality that has occurred, the operating status of the terminal equipment and the location of the activated terminal equipment, the operating status of other devices and equipment that make up the disaster prevention system, and the status of the signal line for receiving signals from the terminal equipment.

[0040] The "contents related to monitoring of line current flowing through the signal line" displayed on the second screen display section are optional contents that need to be displayed, such as the monitoring state when no fault has occurred in the signal line (normal monitoring state), when a fault has occurred in the signal line, or when a person is measuring the signal line or checking the measurement history, and include information such as the type of fault that has occurred in the signal line (abnormal current value, signs of abnormal current value, etc.), the conditions and results for determining a fault in the signal line, and the measurement history of the line current.

[0041] Furthermore, measurements of line currents flowing through signal lines in a disaster prevention system can be, for example, "automatic measurement," which is performed automatically by the disaster prevention system, or "manual measurement," which is performed through human operation. "Automatic measurement" includes, for example, "fixed-period measurement," which measures line currents at a fixed interval, for example, once a day. "Manual measurement" includes, for example, "selective measurement," which selects the signal line to be measured and measures the line current for any signal line, and "all-specified measurement," which specifies all signal lines and measures the line current for all signal lines. Note that in selective measurement, all signal lines can be selected.

[0042] Furthermore, the measurement history of the line current displayed on the second screen display section may be narrowed down to specific measurement history according to various conditions.

[0043] In the embodiment, when a predetermined first condition is met, a predetermined second content (content related to monitoring the line current flowing through the signal line) is displayed on the first screen display unit, and when a predetermined second condition is met, a predetermined first content (predetermined content related to monitoring anomalies) is displayed on the second screen display unit.

[0044] Therefore, it is possible to check the contents related to the monitoring of the line current flowing in the signal line as needed on the first screen display unit, which is used mainly for the purpose of checking the contents related to the monitoring of abnormalities, and it is also possible to check the contents related to the monitoring of abnormalities as needed on the second screen display unit, which is used mainly for the purpose of checking the contents related to the monitoring of the line current flowing in the signal line. Furthermore, because both contents can be checked on either screen display unit, even if the first screen display unit and the second screen display unit are arranged so that only the display content of one of the screen display units is visible under certain conditions, more specifically, even if the checker cannot see both the display on the first screen display unit and the display on the second screen display unit or operate both screens from the same predetermined position, the checker can see the display on either screen display unit and can also operate the screen of either screen display unit, so it is possible to easily check the necessary information without any problems.

[0045] Here, the predetermined first condition for displaying the predetermined second content on the first screen display unit is arbitrary, but may include, for example, a condition that requires a switching operation by a display content switching operation unit, and the "display content switching operation unit" may include, for example, an operation unit that displays a screen, such as an operation button displayed on the first screen display unit, or a physical operation unit, such as a switch, and the position of the operation unit that displays a screen relative to the first screen display unit and the position of the physical operation unit relative to the device (disaster prevention receiving panel) on which the screen display unit is installed may be arbitrary.

[0046] Furthermore, when the predetermined first condition is satisfied by switching operation using the switching operation unit and the predetermined second content is displayed on the first screen display unit, the display mode is arbitrary, and may be, for example, a display mode in which the display area is divided to display the predetermined first content and the predetermined second content, or a display mode in which only the predetermined second content is displayed without displaying the predetermined first content, and when the display area is divided and displayed, the sizes of the display area displaying the predetermined first content and the display area displaying the predetermined second content do not necessarily have to be the same. Note that by again operating the switching operation unit while the predetermined second content is displayed, it is possible to return to displaying the predetermined first content.

[0047] Furthermore, the second predetermined condition for displaying the first predetermined content on the second screen display section is basically the same as the first predetermined condition described above, so a description thereof will be omitted.

[0048] Furthermore, although the example given is a switching operation using the switching operation unit as satisfying the predetermined first condition and the predetermined second condition, other configurations are also possible, such as when the disaster prevention receiving panel receives an abnormality detection signal from a detector that has detected an abnormality or an abnormality report signal from a reporting device, the predetermined second condition is satisfied and a predetermined first content is displayed on the second screen display unit, or when a fault is determined in any signal line, the predetermined first condition is satisfied and a predetermined second content is displayed on the first screen display unit, and when a predetermined recovery operation is detected, the display before switching is restored. Note that even when the display content is switched in this way other than by operating the display content switching operation unit, it may be possible to restore the display before switching by operating the display content switching operation unit.

[0049] Additionally, as an initial setting, the first screen display section is set to display on, and the second screen display section is set to display off.

[0050] "Display on" refers to a state in which the screen display is on so that people can see the displayed content, and "display off" refers to a state in which people cannot see the displayed content, for example, due to the backlight being turned off or a sleep mode in which no display is performed.

[0051] Here, the primary function of the disaster prevention system is to monitor abnormalities in the monitored area, and monitoring the line current flowing in the signal line is a secondary function of monitoring that the function of monitoring abnormalities in the monitored area is being maintained normally, and the information related to the monitoring of the line current flowing in the signal line does not necessarily need to be displayed all the time. For this reason, the second screen display unit, which displays the information related to the secondary function of monitoring the line current flowing in the signal line, is initially set to display off, thereby reducing the power consumption of the disaster prevention system.

[0052] Furthermore, the display on and display off of the first screen display unit and the second screen display unit can be switched by, for example, a display state switching operation unit. Similar to the above-mentioned "display content switching operation unit," the "display state switching operation unit" includes an operation unit that displays a screen, such as an operation button, displayed on either screen display unit, and a physical operation unit, such as a switch.

[0053] In addition, the "display state switching operation unit" is arranged at a predetermined position on the exterior of the device (disaster prevention receiving panel), for example, at the exterior surface where the first screen display unit is located, thereby making it possible to switch the display state of the second screen display unit inside the device (disaster prevention receiving panel) by operating on the exterior of the device (disaster prevention receiving panel) without making any modifications to allow access to the interior of the device (disaster prevention receiving panel) when the second screen display unit is located inside the device (disaster prevention receiving panel).

[0054] In addition to the "display status switching operation unit," by providing a "status display unit" that displays the display status of the second screen display unit and a "content display unit" that displays the content displayed on the second screen display unit at a predetermined position on the exterior of the device (disaster prevention receiving panel), for example, on the exterior surface where the first screen display unit is located, it becomes possible to know the display status and display content of the second screen display unit on the exterior of the device (disaster prevention receiving panel) without having to check the second screen display unit inside the device (disaster prevention receiving panel).

[0055] The first screen display unit may also serve as the "status display unit," for example, by using part of the display area of ​​the first screen display unit as a display area for displaying content related to the display status of the second screen display unit. Alternatively, the "status display unit" may be a display unit using an indicator light such as a lamp, and the display status of the second screen display unit may be displayed in a distinguishable manner by using different light-emitting modes or by providing separate indicator lights for display off and display on. The "content display unit" is also basically the same as the "status display unit," and a description thereof will be omitted.

[0056] Furthermore, the second screen display unit can display predetermined third content related to fault confirmation and maintenance work in addition to the predetermined second content, and the first screen display unit can display the predetermined third content when a predetermined third condition is met, for example, when a predetermined switching operation by the display state switching operation unit is detected.

[0057] Here, the "predetermined content related to fault confirmation and maintenance work" includes information such as confirmation items for faults that occur in the disaster prevention system, including faults in signal lines, details of local detector test items (pseudo-activation) performed during maintenance work, and the results of confirmation of those confirmation items and test items, making it possible to confirm responses to faults and the details and results of maintenance work that has been performed. In addition, the display mode of the predetermined third content is arbitrary, and includes, for example, a display mode in which the display area is divided and displayed together with other content, a display mode in which the display can be switched with other content, etc.

[0058] The disaster prevention system also includes a power state switching operation unit that switches the power of each of the first screen display unit and the second screen display unit between off and on. Similar to the aforementioned "display content switching operation unit," the "power state switching operation unit" includes an operation unit that displays a screen, such as an operation button, displayed on either screen display unit, or a physical operation unit, such as a switch.

[0059] Incidentally, as an initial setting, the second screen display unit may be powered off to stop the operation of the second screen display unit, rather than turning off the display.

[0060] Specific embodiments will be described below. In the specific embodiments shown below, the "disaster prevention system" is a "tunnel disaster prevention system that monitors fires in tunnels," the "first screen display unit" is a "main monitor device," the "second screen display unit" is a "sub-monitor device," and the "disaster prevention receiving panel" is a "disaster prevention receiving panel equipped with a main monitor device and a sub-monitor device."

[0061] [Specific details of the embodiment] An embodiment of a tunnel disaster prevention system will be described below. The details will be explained separately as follows. a. Configuration of tunnel disaster prevention system b. Disaster prevention receiving panel monitor device c. Functional configuration of the disaster prevention receiver panel c1. Monitoring and control unit c2.Current monitoring section c3. Display content switching section d. Display mode of the main monitor screen and sub monitor screen d2. First display mode of the main monitor screen and sub monitor screen d3. Second display mode of the main monitor screen and sub monitor screen d4.Third display mode of the main monitor screen and sub monitor screen d5. Fourth display mode of the main monitor screen and sub monitor screen e. Details of the main monitor screen displaying fire monitoring information f. Details of the sub-monitor screen displaying the line current monitoring content f1.All specified measurement screen f2.Selection measurement screen f3. Measurement history screen f4. Measurement history filtering screen f5. Abnormality history screen f6. Fire line history screen f7.Fault line history screen f8. Fire line abnormality history screen and fault line abnormality history screen g. Line current monitoring control of the current monitoring unit h. Modifications of the present invention

[0062] [a. Configuration of tunnel disaster prevention system] First, the configuration of the tunnel disaster prevention system will be explained with reference to Fig. 1 showing the configuration of the tunnel disaster prevention system.

[0063] As shown in Figure 1, the tunnel consists of an up-track tunnel 1a and a down-track tunnel 1b, which are connected by an evacuation tunnel 2.

[0064] Inside the up-track tunnel 1a and the down-track tunnel 1b, a guard passage is provided along the tunnel wall in the longitudinal direction of the tunnel, and fire hydrant devices 18 are installed at predetermined intervals along the tunnel wall in the guard passage.

[0065] The fire hydrant device 18 stores a hose with a nozzle inside, and when a fire breaks out inside the tunnel, a road user opens the fire hydrant door, pulls out the hose with a nozzle from inside the fire hydrant device 18, and opens the fire hydrant valve opening / closing lever of the fire hydrant device 18 to discharge fire water.

[0066] The fire hydrant device 18 is also provided with a fire hydrant valve open / close detection switch 14 that turns on when the fire hydrant valve open / close lever is operated to open, and a manual notification device (transmitter) 16 that serves as a notification device. The fire hydrant valve open / close detection switch 14 and the manual notification device 16 are terminal devices that transmit signals when a no-voltage a-contact switch that functions as contact means is turned on, and the fire hydrant valve open / close detection switch 14 transmits a pump start signal when the no-voltage a-contact switch is turned on, and the manual notification device 16 transmits a fire notification signal when the no-voltage a-contact switch is turned on.

[0067] In addition, the fire hydrant device 18 is provided with a pump start switch to be used by the fire brigade, and the pump start switch, like the fire hydrant valve opening / closing detection switch 14, transmits a pump start signal when a no-voltage a-contact switch that functions as a contact means is turned on, and since the pump start switch is a terminal device connected in parallel with the fire hydrant valve opening / closing detection switch (pump start interlocking switch) 14, the fire hydrant valve opening / closing detection switch 14 and the pump start switch are treated as a single terminal device.

[0068] In addition to the hydrant valve open / close detection switch 14 of the hydrant device 18 and the manual reporting device 16, terminal equipment such as a fire detector, an automatic valve device, and a duct temperature detector are also installed inside the tunnel, but are not shown in the figure.

[0069] The fire detectors are installed at predetermined intervals along the tunnel walls in the longitudinal direction of the tunnel, and set up monitoring areas on both sides of the tunnel within a predetermined range in the longitudinal direction of the tunnel.They detect flames caused by a fire in the monitoring area and output a fire detection signal.

[0070] The automatic valve device is a device that sprays fire-fighting water to protect the tunnel body from fire. For example, the main valve is opened by remotely controlling the opening of the operating motor-operated valve using the disaster prevention receiving panel 10, and fire-fighting water is sprayed from multiple water spray heads installed at predetermined intervals on the upper part of the tunnel wall in the longitudinal direction of the tunnel.

[0071] The duct temperature detector is installed, for example, in a duct containing pipes or cables inside a guard passageway, and detects a rise in temperature inside the duct due to a cable fire, etc., and outputs a temperature detection signal by turning on a no-voltage a-contact switch that functions as a contact means.

[0072] In the following explanation, the fire hydrant valve open / close detection switch 14 and the manual reporting device 16 will be described as representative terminal devices. Although the manual reporting device 16 is also provided in places other than the fire hydrant device 18, such as emergency telephone booths, the manual reporting device 16 provided in the fire hydrant device 18 will be described as representative.

[0073] A disaster prevention receiving panel 10 is installed in the electrical room of the tunnel. In addition to a fire monitoring function that monitors fires that occur in the up-line tunnel 1a and the down-line tunnel 1b, the disaster prevention receiving panel 10 also has a line current monitoring function that monitors the line current flowing in the P-type signal line to which the terminal equipment is connected.

[0074] The inside of the up-line tunnel 1a and the down-line tunnel 1b are divided into predetermined sections, for example, six sections, in the longitudinal direction of the tunnel, and P-type signal lines 12 (12-1) to 12 (12-n) are drawn from the disaster prevention receiving panel 10 for each section of the up-line tunnel 1a and the down-line tunnel 1b and for each terminal device, and each signal line 12 (12-1) to 12 (12-n) is connected to a plurality of fire hydrant valve open / close detection switches 14 and manual notification devices 16 that belong to the corresponding section. Furthermore, the signal lines 12 (12-1) to 12 (12-n) are referred to as signal line 12 when there is no need to distinguish between them.

[0075] The P-type signal line 12 is composed of, for example, a signal line and a common line, and by connecting the hydrant valve opening / closing detection switch 14 of the hydrant device 18 and the no-voltage a-contact switch provided in the manual notification device 16 between the signal line and the common line, when the no-voltage a-contact switch is turned on, a line current is passed through the signal line 12, and a pump start signal and a fire notification signal are sent to the disaster prevention receiving panel 10.

[0076] The tunnel disaster prevention system also includes a fire pump equipment 20, a duct cooling pump equipment 22, an IG substation equipment 24, ventilation equipment 28, an alarm display board equipment 30, a radio rebroadcasting equipment 32, a television monitoring equipment 34, and lighting equipment 36, and except for the IG substation equipment 24 which is connected via a data transmission line, all other equipment is individually connected to the disaster prevention receiving panel 10 via a P-type signal line.

[0077] The IG slave station equipment 24 is a communications equipment that connects the disaster prevention receiving panel 10 with the remote monitoring and control equipment 26, an external higher-level equipment, via a network 25. The ventilation equipment 28 is equipment that generates airflow in the longitudinal direction of the tunnel using jet fans or the like installed on the ceiling of the tunnel. The warning display board equipment 30 is equipment that notifies road users in the tunnel of abnormalities inside the tunnel by displaying them on an electronic display board. The radio rebroadcasting equipment 32 is equipment that allows road users in the tunnel to receive information from the road administrator. The television monitoring equipment 34 is equipment for checking the scale and location of a fire, the operating status of automatic valve devices, the situation inside the tunnel, etc. The lighting equipment 36 is equipment that manages the operation of lighting equipment inside the tunnel.

[0078] [b. Disaster prevention receiving panel monitor device] Next, the monitor device of the disaster prevention receiving panel will be explained. In this explanation, reference will be made to Figure 2, which shows the external appearance of the disaster prevention receiving panel, and Figure 3, which shows the disaster prevention receiving panel with the panel door open so that the sub-monitor device can be seen from the outside. Note that Figure 2(A) shows the front (front side), and Figure 2(B) shows the right side.

[0079] 2 and 3, the X, Y, and Z directions are perpendicular to each other, and specifically, the outer surface on which the main monitor device of the disaster prevention receiving panel 10 is placed is referred to as the front surface, and when viewed from the front, the X direction is the left-right direction, the Y direction is the up-down direction, and the Z direction is the front-to-back direction. Also, the +X side in the X direction is the right side and the -X side is the left side, the +Y side in the Y direction is the top side and the -Y side is the bottom side, and the +Z side in the Z direction is the front side and the -Z side is the back side.

[0080] The disaster prevention receiving panel 10 has a box-shaped housing 60 that is open at the front and back, as shown in Figure 2, with a panel door 6010 that can be opened and closed freely provided on the front of the housing 60, and a panel door 6012 that can be opened and closed freely provided on the rear of the housing 60.

[0081] A main monitor device 44 is disposed on the surface (front) of the panel door 6010, and an operation display unit 50 is disposed below the main monitor device 44. The main monitor device 44 uses, for example, a liquid crystal display with a touch panel, and displays predetermined content related to fire monitoring (hereinafter referred to as fire monitoring content) on a main monitor screen 4410.

[0082] The main monitor device 44 is also provided with a power button (power state switching operation unit) 68, which makes it possible to turn on and off the power of the main monitor device 44. In addition to the power button 68, the main monitor device 44 is also provided with other operation units as needed, such as a display state switching button (display state switching operation unit) for switching the display state, brightness and saturation adjustment buttons, and a background color selection button.

[0083] Furthermore, the sub-monitor device 46 is arranged inside the housing 60 while being fixed by a support frame 6016, and as shown in Fig. 3, the sub-monitor device 46 can be seen from outside the housing 60 by opening a panel door 6010 of the disaster prevention receiving panel 10. Like the main monitor device 44, the sub-monitor device 46 uses, for example, a liquid crystal display with a touch panel, and displays predetermined content related to monitoring of the line current flowing through the signal line (hereinafter referred to as line current monitoring content) on a sub-monitor screen 4610.

[0084] The sub-monitor device 46 is also provided with a power button (power state switching operation unit) 72, which makes it possible to turn on and off the power of the sub-monitor device 46. In addition to the power button 72, the sub-monitor device 46 is also provided with other operation units as needed, such as a display state switching button (display state switching operation unit) for switching the display state, brightness and saturation adjustment buttons, and a background color selection button.

[0085] [c. Functional configuration of the disaster prevention receiving panel] Next, the functional configuration of the disaster prevention receiving panel will be explained with reference to Fig. 4, which shows the functional configuration of the tunnel disaster prevention system.

[0086] As shown in Figure 4, the disaster prevention receiving panel 10 is equipped with a control unit 40, which, for example, by executing a program, realizes functions as a monitoring control unit 56, a current monitoring unit 58, and a display content switching unit 60, and the hardware used includes a computer circuit equipped with a CPU, memory, various input / output ports including an AD conversion port, etc.

[0087] In addition, the disaster prevention receiving panel 10 is provided with a P-type transmission unit 42, a main monitor device 44, a sub-monitor device 46, an alarm unit 48, an operation display unit 50, and a transmission unit 54 in relation to the control unit 40.

[0088] The P-type transmission unit 42 connects the hydrant valve open / close detection switches 14 and manual reporting devices 16 of the fire hydrant devices 18 installed in the up-track tunnel 1a and the down-track tunnel 1b via P-type signal lines 12. The alarm unit 48 is equipped with a speaker, buzzer, alarm indicator light, etc. The operation display unit 50 is equipped with various indicator lights and switches. The transmission unit 54 connects the IG slave station equipment 24 via a data transmission line, and individually connects the ventilation equipment 28, alarm display board equipment 30, radio rebroadcasting equipment 32, television monitoring equipment 34, lighting equipment 36, fire pump equipment 20, and cooling pump equipment 22 via P-type signal lines.

[0089] (c1. Monitoring and control unit) Next, the monitoring control section of the control section will be explained. The monitoring control section 56 performs predetermined monitoring control based on signals from terminal devices such as the fire hydrant valve open / close detection switch 14 and manual notification device 16 provided on the fire hydrant device 18 installed inside the tunnel, fire detectors, duct temperature detectors, and automatic valve devices. Here, the monitoring control based on signals from the fire hydrant valve open / close detection switch 14 and manual notification device 16 will be mainly described.

[0090] In addition, when the monitoring control unit 56 receives a fire notification signal from the manual notification device 16 provided in the fire hydrant device 18 via the P-type transmission unit 42, it controls the alarm unit 48 to make a main sound, the operation display unit 50 to display a fire representative display, and sends a response signal to the fire hydrant device 18 via the P-type transmission unit 42 to turn on the response lamp of the fire hydrant device 18.

[0091] Furthermore, the monitoring control unit 56 displays, as fire monitoring content, a fire display indicating that a fire has occurred, for example, using a tunnel system diagram, and a manual reporting section display that clearly shows the operated manual reporting device 16 and the section to which that manual reporting device 16 belongs, on the main monitor screen 4410 of the main monitor device 44, and performs control to notify the current monitoring unit 58 of information on the signal line (fire line) that received the fire reporting signal, for example, the line number of the fire line.

[0092] In addition, when the monitoring control unit 56 receives a pump start signal from the fire hydrant valve opening / closing detection switch 14 by opening the fire hydrant valve opening / closing lever 14 provided on the fire hydrant device 18, it controls the fire pump equipment 20 to start up by sending a pump start signal via the transmission unit 54.

[0093] Furthermore, the monitoring control unit 56 displays, as fire monitoring content, a fire display indicating that a fire has occurred, for example, using a tunnel system diagram, and a hydrant activation compartment display that identifiably shows the activated fire hydrant valve open / close detection switch 14 and the compartment to which that fire hydrant valve open / close detection switch 14 belongs, on the main monitor screen 4410 of the main monitor device 44, and performs control to notify the current monitoring unit 58 of information on the signal line (fire hydrant activation line) that received the pump activation signal, for example, the line number of the fire hydrant activation line.

[0094] Furthermore, the monitoring control unit 56 monitors for disconnection faults in the signal lines 12, and when it detects a disconnection fault, it causes the alarm unit 48 to sound a fault sound and causes the operation display unit 50 to display a fault representative display. Note that a termination resistor is connected to the end of each signal line 12 so that a disconnection monitoring current flows through the signal line 12, and the monitoring control unit 56 monitors for disconnection faults in the signal lines 12 by detecting a disconnection fault when the disconnection monitoring current is cut off.

[0095] Furthermore, the monitoring control unit 56 controls the main monitor screen 4410 of the main monitor device 44 to display, as fire monitoring content, for example, a fault display indicating that a fault has occurred in the signal line 12 and a fault section display indicating the signal line 12 in which the fault has occurred and the section connected to that signal line 12, and controls the current monitoring unit 58 to be notified of information about the signal line in which the fault has occurred (faulty line), for example the line number of the faulty line.

[0096] (c2.Current monitoring section) Next, the current monitoring unit 58 of the control unit will be described. The current monitoring unit 58 monitors the line current of the signal line 12 to which the terminal device equipped with the no-voltage a-contact switch including the fire hydrant valve open / close detection switch 14 and the manual notification device 16 is connected.

[0097] The current monitoring unit 58 monitors the line current, for example, by measuring the line current flowing through the signal line, and determining that the current value is abnormal if the measured line current value falls outside a threshold range determined by predetermined upper and lower thresholds. That is, depending on whether or not it determines that the current value is abnormal, the current monitoring unit 58 can monitor for faults in the signal line 12, such as a disconnection fault in the signal line 12 in which the current value falls below the lower threshold of the threshold range, or an insulation degradation fault in the signal line 12 in which the current value exceeds the upper threshold of the threshold range.

[0098] The current monitoring unit 58 measures the line current of the signal line 12, for example, by reading the detected voltage of a current detection resistor connected in series to the signal line 12 through AD conversion, and calculating the current value of the line current based on the detected voltage and the resistance value of the current detection resistor. In order to eliminate the effects of noise, it is desirable to calculate the current value of the line current as the average of a predetermined number of current values ​​over a predetermined period of time.

[0099] In addition, after measuring the line current, the current monitoring unit 58 controls the storage of the measurement results including the measured line current as a measurement history in a memory such as the disaster prevention receiving panel 10 or a removable memory card.

[0100] Here, the measurement of the line current by the current monitoring unit 58 can be automatic measurement without human operation, or manual measurement with human operation.

[0101] First, automatic measurement includes, for example, periodic measurement, in which the current monitoring unit 58 sequentially measures the line currents of all signal lines 12 at predetermined intervals, for example, once a day.

[0102] Manual measurement also includes a selective measurement in which the signal line 12 to be measured is selected and the line current of any signal line 12 is measured, and a full specified measurement in which all signal lines 12 are specified and the line current of all signal lines 12 is measured.

[0103] In selective measurement by the current monitoring unit 58, the sub-monitor screen 4610 of the sub-monitor device 46 is set as a selective measurement screen, and when a selective measurement operation of selecting any signal line 12 on the selective measurement screen is detected, the line current flowing through the selected signal line 12 is measured sequentially.

[0104] In addition, in the all-designated measurement by the current monitoring unit 58, the sub-monitor screen 4610 of the sub-monitor device 46 is set as the all-designated measurement screen, and when an all-designated measurement operation that designates all signal lines 12 on the all-designated measurement screen is detected, the line currents flowing through all signal lines 12 are measured sequentially.

[0105] In the case of manual measurement, the current monitoring unit 58 displays the measurement results including the measured line current on the sub-monitor screen 4610 of the sub-monitor device 46.

[0106] Furthermore, when the current monitoring unit 58 detects a measurement history display operation on the sub-monitor screen 4610 of the sub-monitor device 46, it causes the measurement history stored in the memory to be displayed on the sub-monitor screen 4610.

[0107] In addition, when the current monitoring unit 58 detects an operation to display the fire line history or the faulty line history on the sub-monitor screen 4610 of the sub-monitor device 46, it extracts the measurement history of the signal line corresponding to the line number of the fire line or faulty line notified by the monitoring control unit 56 from the measurement history stored in memory and displays it on the sub-monitor screen 4610.

[0108] In addition, when the current monitoring unit 58 detects an operation to display the abnormality history on the sub-monitor screen 4610 of the sub-monitor device 46, it extracts the measurement history of the signal line in which the current value abnormality has been determined from the measurement history stored in the memory, and displays it in chronological order on the sub-monitor screen 4610.

[0109] In addition, when the current monitoring unit 58 detects an operation to display the abnormality history of a fire line or an abnormality history of a faulty line on the sub-monitor screen 4610 of the sub-monitor device 46, it extracts the measurement history of the signal line corresponding to the line number of the fire line or faulty line notified by the monitoring control unit 56 from the measurement history stored in memory, and of the signal line for which an abnormal current value has been determined, and displays it in chronological order on the sub-monitor screen 4610.

[0110] (c3. Display content switching section) Next, the display content switching unit 62 of the control unit will be described. When detecting a display content switching operation for the main monitor device 44, the display content switching unit 62 switches the content displayed on the main monitor screen 4410 of the main monitor device 44 from the fire monitoring content to the line current monitoring content displayed on the sub-monitor screen 4610 of the sub-monitor device 46.

[0111] In addition, when the display content switching unit 62 detects a display content switching operation for the sub-monitor device 46, it switches the content displayed on the sub-monitor screen 4610 of the sub-monitor device 46 from the line current monitoring content to the fire monitoring content displayed on the main monitor screen 4410 of the main monitor device 44.

[0112] [d. Display mode of the main monitor screen and sub monitor screen] Next, the display modes of the main monitor screen of the main monitor device and the sub-monitor screen of the sub-monitor device will be described. In this description, reference will be made to Fig. 5, which shows an example of a display mode in which the main monitor screen and the sub-monitor screen are arranged side by side. Fig. 5(A) shows a first display mode in which the main monitor screen is turned on and the sub-monitor screen is turned off, Fig. 5(B) shows a second display mode in which both the main monitor screen and the sub-monitor screen are turned on, Fig. 5(C) shows a third display mode in which the main monitor screen is switched on, and Fig. 5(D) shows a fourth display mode in which the sub-monitor screen is switched on.

[0113] (d1. First display mode of the main monitor screen and sub monitor screen) FIG. 5(A) shows a first display mode of the main monitor screen and the sub-monitor screen.

[0114] In the first display mode, the main monitor screen 4410 of the main monitor device 44 is turned on, and displays the fire monitoring content 66 on the main monitor screen 4410, while the sub-monitor screen 4610 of the sub-monitor device 46 is turned off, and no display is made on the sub-monitor screen 4610, thereby reducing power consumption of the disaster prevention receiving panel 10. The first display mode is a display mode that is initially set in the main monitor device 44 and the sub-monitor device 46, and is the display mode in which the disaster prevention receiving panel 10 is in a normal monitoring state.

[0115] In addition, a switching button 64 that functions as a display content switching operation unit and sub-monitor status information 65 are displayed in the upper right corner of the main monitor screen 4410.

[0116] The switch button 64 is a touch-operable button display, and by touching the switch button 64 while the fire monitoring content 66 is displayed on the main monitor screen 4410, it is possible to switch from displaying the fire monitoring content 66 to displaying the line current monitoring content.

[0117] The sub-monitor status information 65 shows three pieces of information: display on / off information 6510, fire monitoring display information 6512, and line current monitoring display information 6514. The display on / off information 6510 functions as a status display section that displays the display status of the sub-monitor screen 4410, and displays the sub-monitor screen 4410 in a distinguishable manner when the display is off and when the display is on. The fire monitoring display information 6512 and line current monitoring display information 6514 function as content display sections that display the content displayed on the sub-monitor screen 4410, and display the content displayed on the sub-monitor screen 4410 in a distinguishable manner.

[0118] In the first display mode, the sub-monitor screen 4610 is turned off and no display is being performed, so the display on / off information 6510, fire monitoring display information 6512, and line current monitoring display information 6514 of the sub-monitor status information 65 are displayed in the same color as the background color of the main monitor screen (blank display), for example.

[0119] (d2. Second display mode of the main monitor screen and sub monitor screen) FIG. 5(B) shows a second display mode of the main monitor screen and the sub-monitor screen.

[0120] In the second display mode, the main monitor screen 4410 of the main monitor device 44 and the sub-monitor screen 4610 of the sub-monitor device 46 are turned on, and the fire monitoring content 66 is displayed on the main monitor screen 4410 and the line current monitoring content 67 is displayed on the sub-monitor screen 4610.

[0121] In addition, a switch button 70 that functions as a display content switching operation unit is displayed in the upper right corner of the sub-monitor screen 4610. The switch button 70 is a touch-operable button display similar to the switch button 64 on the main monitor screen 4410, and by touching the switch button 70 while the line current monitoring content 67 is displayed on the sub-monitor screen 4610, it is possible to switch from displaying the line current monitoring content 67 to displaying the fire monitoring content 66.

[0122] In addition, in the second display mode, the sub-monitor screen 4610 is display-on and displays the line current monitoring content 67 on the sub-monitor screen 4610, so in the sub-monitor status information 65 on the main monitor screen 4410, the display on / off information 6510 and the line current monitoring display information 6514 are displayed in a identifiable color that is different from the background color, and the fire monitoring display information 6512 is displayed blank.

[0123] (d3. Third display mode for the main monitor screen and sub-monitor screen) FIG. 5C shows a third display mode of the main monitor screen and the sub-monitor screen.

[0124] The third display mode is a display mode when the switch button 64 on the main monitor screen 4410 is touched in the second display mode shown in Fig. 5(B), and the display on the main monitor screen 4410 is switched from the fire monitoring content 66 to the line current monitoring content 6710 by touching the switch button 64. Also, the switch button 64 switches to a predetermined color different from the background color to clearly indicate that the display has been switched from the fire monitoring content 66 to the line current monitoring content 6710.

[0125] Therefore, a person checking the main monitor screen 4410 does not need to open or move the panel door 6010 to check the sub-monitor screen 4610, and can check the line current monitoring content 6710 on the main monitor screen 4410.

[0126] The sub-monitor status information 65 on the main monitor screen 4410 in the third display mode is the same as in the second display mode of FIG. 5(B).

[0127] Furthermore, if the switch button 64 is touched again on the main monitor screen 4410 displaying the line current monitoring content 6710, the display on the main monitor screen 4410 will return from the line current monitoring content 6710 to the fire monitoring content 66, and the display of the switch button 64 will also return.

[0128] Furthermore, screen operations performed while displaying the line current monitoring content 67 on the sub-monitor screen 4610 can also be performed on the main monitor screen by switching the main monitor screen to display the line current monitoring content 6710. Note that the line current monitoring content 6710 switched to and displayed on the main monitor screen 4410 and the line current monitoring content 67 displayed on the sub-monitor screen 4610 are synchronized, and even if a screen operation is performed to update the line current monitoring content 67, 6710 on either monitor screen, the line current monitoring content 67, 6710 on both monitor screens will be updated.

[0129] (d4. Fourth display mode of the main monitor screen and sub monitor screen) FIG. 5(D) shows a fourth display mode of the main monitor screen and the sub-monitor screen.

[0130] The fourth display mode is a display mode when the switch button 70 on the sub-monitor screen 4610 is touched in the second display mode shown in Fig. 5(B), and the display on the sub-monitor screen 4610 is switched from the line current monitoring content 67 to the fire monitoring content 6610 by touching the switch button 70. Also, the switch button 70 switches to a predetermined color different from the background color to clearly indicate that the display has been switched from the line current monitoring content 67 to the fire monitoring content 6610.

[0131] Therefore, for example, if a fire breaks out in a tunnel while the sub-monitor device 46 is being used to investigate a signal line where an abnormal current value has been detected, it is possible to check the fire monitoring details 6610 on the sub-monitor screen 4610 without having to close or move the panel door 6010 to check the main monitor screen 4410.

[0132] In addition, in the fourth display mode, the sub-monitor screen 4610 is on and displays the fire monitoring content 6610 on the sub-monitor screen 4610, so the display on / off information 6510 and the fire monitoring display information 6512 of the sub-monitor status information 65 are displayed in a identifiable color different from the background color, and the line current monitoring display information 6514 is displayed blank.

[0133] Furthermore, if the switch button 70 is touched again on the sub-monitor screen 4610 displaying the fire monitoring content 6610, the display on the sub-monitor screen 4610 will return from the fire monitoring content 6610 to the line current monitoring content 68, and the display of the switch button 70 will also return.

[0134] Furthermore, screen operations performed by displaying the fire monitoring content 66 on the main monitor screen 4410 can also be performed on the sub-monitor screen 4610 by switching the display of the fire monitoring content 6610 on the sub-monitor screen 4610. The fire monitoring content 6610 switched to and displayed on the sub-monitor screen 4610 and the fire monitoring content 66 displayed on the main monitor screen 4410 are synchronized, and even if a screen operation is performed to update the fire monitoring content 66, 6610 on either monitor screen, the fire monitoring content 66, 6610 on both monitor screens will be updated.

[0135] [e. Details of the main monitor screen displaying fire monitoring information] Next, the main monitor screen displaying the fire monitoring content will be described in detail with reference to Fig. 6, which shows an example of the main monitor screen displaying the fire monitoring content.

[0136] As shown in Figure 6, the main monitor screen 4410 of the main monitor device 44 displays the fire monitoring content 66, and as an example, a fire display unit 200 that displays fire information at the top center of the screen, and an up-lane tunnel system diagram 202a and a down-lane tunnel system diagram 202b as tunnel system diagrams that allow for the display of sections such as manual reporting sections, fire hydrant activation sections, and obstruction sections, are displayed.

[0137] The up-lane tunnel system diagram 202a and the down-lane tunnel system diagram 202b are divided into three sections: a hydrant location section 204 showing the location of the fire hydrant devices 18; a manual reporting device location section 206 showing the section to which the manual reporting device 16 provided on the fire hydrant device 18 belongs; and a hydrant activation device location section 208 showing the section to which the fire hydrant valve opening / closing detection switch 14 provided on the fire hydrant device 18 belongs.

[0138] Here, the inbound tunnel system diagram 202a and the outbound tunnel system diagram 202b shown in FIG. 6 are tunnel system diagrams in which the number of sections is six.

[0139] The manual reporting device arrangement section 206 is divided into six sections, each of which displays a section number "1 to 6" (a number corresponding to the line numbers 1 to 6 of the signal lines 12 (12-1) to 12 (12-6)) and is provided with a line display section 210. The fire hydrant activation device arrangement section 208 is also divided into six sections, each of which displays a section number "1 to 6" and is provided with a line display section 212.

[0140] In the fire hydrant location section 204, a rectangular symbol is shown as one fire hydrant device 18, and in the up-lane tunnel system diagram 202a and the down-lane tunnel system diagram 202b shown in Figure 6, the symbols are arranged so that, for example, four symbols are located at the partition positions of partition numbers 1 to 5 in the manual notification device location section 206 and the fire hydrant activation device location section 208, and two symbols are located at the partition position of partition number 6.

[0141] Therefore, for example, when a fire notification signal is transmitted from the manual notification device 16 of the fire hydrant device 18 located at the leftmost position in the section with section number 1 in Figure 6 to the disaster prevention receiving panel 10, the symbol located at the leftmost position in the fire hydrant placement section 204 is displayed so as to be distinguishable from the other symbols, and the line display section 210 of the section with section number 1 in the manual notification device placement section 206 is displayed so as to be distinguishable from the line display sections 210 of the other sections, making it possible to display the manual notification section that identifies the manual notification device 16 that transmitted the fire notification signal and the location of that manual notification device 16.

[0142] Furthermore, when a pump start signal is sent from the fire hydrant valve opening / closing detection switch 14 to the disaster prevention receiving panel 10, the symbol of the corresponding fire hydrant device 18 in the fire hydrant placement section 204 is displayed so as to be distinguishable from other symbols, and the line display section 212 of the corresponding section in the fire hydrant starting device placement section 208 is displayed so as to be distinguishable from the line display sections 212 of other sections, thereby making it possible to display the fire hydrant valve opening / closing detection switch 14 that sent the pump start signal and the fire hydrant starting section that identifies the position of that fire hydrant valve opening / closing detection switch 14.

[0143] Furthermore, when the disaster prevention receiving panel 10 detects a disconnection fault in the signal line 12, the line display units 210, 212 of the sections of the manual reporting device location unit 206 and the fire hydrant activation device location unit 208 corresponding to the line number of the signal line in which the disconnection fault has occurred are displayed in a manner that makes them distinguishable from the line display units 210, 212 of the other sections, thereby enabling a faulty section display that identifies the signal line 12 in which the disconnection fault has occurred. The faulty section display is distinguishable from section displays such as the manual reporting section display and the fire hydrant activation section display, and is displayed in a different color, for example.

[0144] In addition to the fire monitoring content 66, as mentioned above, the main monitor screen 4410 displays a switch button 64 and sub-monitor status information 65 showing three pieces of information: display on / off information 6510, fire monitoring display information 6512, and line current monitoring display information 6514.

[0145] [f. Details of the sub-monitor screen displaying the line current monitoring content] Next, the details of the sub-monitor screens that display the line current monitoring contents will be explained. Here, the sub-monitor screens that display the line current monitoring contents will be taken as examples of the all-specified measurement screen, the selected measurement screen, the measurement history screen, the measurement history narrowing screen, the abnormality history screen, the fire line history screen, the fault line history screen, the fire line abnormality history screen, and the fault line abnormality history screen.

[0146] (f1. All specified measurement screen) First, the all designated measurement screen will be explained with reference to Fig. 7, which shows an example of the sub-monitor screen as the all designated measurement screen.

[0147] As shown in Figure 7, the all designated measurement button 74, the select measurement button 75, the measurement history button 76, the abnormality history button 78, the fire history button 80, and the fault history button 82 are arranged and displayed at the bottom of the sub-monitor screen 4610, and when performing all designated measurements, the all designated measurement button 74 is touched as shown by the hatching to switch to the all designated measurement screen 84.

[0148] On the all designated measurement screen 84, an ON button 88 and an OFF button 90 are displayed in the fixed cycle measurement frame. In the normal monitoring state, the ON button 88 is set to the ON state to perform fixed cycle measurement, and to perform all designated measurement, the fixed cycle measurement is canceled by touching the OFF button 90 as shown by the hatching, and then the START button 92 displayed in the all designated measurement frame is touched as shown by the hatching. If it is desired to interrupt the all designated measurement, the STOP button 94 is touched.

[0149] During all designated measurements, the measurement display 100 changes to "measuring" to indicate that all designated measurements are being performed, and for each measurement of the line current of each signal line, the measured value is displayed in the measurement value box 96 and the measurement time is displayed in the measurement time box 98.

[0150] When all designated measurements are completed, the measurement display 100 changes to "Measurement completed," and the measurement results, including the measured line current, are displayed as detailed measurement information 104. The detailed measurement information 104 is displayed separately for the inbound and outbound lanes of the tunnel and by type of terminal equipment; for example, if "upbound line manual notification" is selected in the type selection section 86 as indicated by hatching, the detailed measurement information 104 for the signal line connected to the manual notification device 16 of the inbound line tunnel 1a is displayed. The detailed measurement information 104 is displayed in a list for each signal line, with columns separated by, for example, line number, lower limit threshold, upper limit threshold, and measured value.

[0151] As shown in Figure 7, for line number 004, the measured value is 1.25 mA, which exceeds the upper threshold of 1.00 mA and is therefore determined to be an abnormal current value. As shown by the hatching, the display for line number 004 changes to make it distinguishable from the other line numbers, and the abnormal current value display 102 changes to "abnormal current value occurred," notifying the occurrence of an abnormal current value.

[0152] After all designated measurements have been completed, the periodic measurement can be restarted by touching the ON switch 88 of the periodic measurement frame.

[0153] In addition, a switch button 70 is displayed in the upper right corner of the sub-monitor screen 4610, and touching the switch button 70 makes it possible to switch the display of the fire monitoring content 66. The switch button 70 is also displayed in the screens described below, making it possible to switch the display of the fire monitoring content 66 as needed.

[0154] (f2.Selection measurement screen) Next, the selection measurement screen will be described with reference to Fig. 8, which shows an example of the sub-monitor screen serving as the selection measurement screen.

[0155] As shown in FIG. 8, the selection measurement screen 106 is displayed by touching the selection measurement button 75 displayed below the sub-monitor screen 4610 as shown by the hatching.

[0156] When performing selective measurement, as with all designated measurements, the fixed-period measurement is canceled by touching the switch button 90 in the fixed-period measurement frame as shown by the hatching, and then, as the measurement target, for example, "Up-lane manual notification" is selected in the type selection section 86 as shown by the hatching to display the measurement details information 116 of the signal line connected to the manual notification device 16 of the up-lane tunnel 1a, and then, by operating the selection buttons 108, 110 displayed in the selective measurement frame, the signal line to be measured is selected and the start button 112 is touched as shown by the hatching.

[0157] Here, the measurement detail information 116 displayed by selection in the type selection unit 86 displays the line number, lower limit threshold, and upper limit threshold, and when selecting a signal line by operating the selection buttons 108, 110, the currently selected signal line is displayed so as to be distinguishable from other signal lines, such as line number 004 in the measurement detail information 116 shown by hatching.

[0158] For example, when "Up Line Manual Report" is selected in the type selection section 86 and "Line Number 004" is selected in the measurement detail information 116 and a selective measurement is started, the measurement display 100 changes to "Measuring" to indicate that the selective measurement is being performed, the measurement value of the target signal line is displayed in the measurement value frame 96, and the measurement time of the target signal line is displayed in the measurement time frame 98.

[0159] When the selected measurement is completed, the measurement display 100 changes to "Measurement completed," and for example, "1.25" is displayed in the measurement value column for "Line No. 0004" in the measurement detail information 116. The measured value of 1.25 mA exceeds the upper threshold of 1.00 mA, and is therefore determined to be an abnormal current value. As shown by the hatching, the display for line No. 004 changes to distinguish it from other signal lines, and the current abnormal value occurrence display 102 changes to "Current abnormal value occurred," notifying the occurrence of an abnormal current value.

[0160] After the selective measurement is completed, the periodic measurement can be restarted by touching the ON switch 88 of the periodic measurement frame.

[0161] (f3. Measurement history screen) Next, the measurement history screen will be described with reference to Fig. 9, which shows an example of a sub-monitor screen serving as the measurement history screen.

[0162] As mentioned above, after measuring the line current, the current monitoring unit 58 stores the measurement results in memory as measurement history. Therefore, as shown in FIG. 9, by touching the measurement history button 76 displayed at the bottom of the sub-monitor screen 4610 as indicated by the hatching, the screen switches to the measurement history screen 118, and the measurement history read from memory is displayed as measurement history detailed information 120.

[0163] On the measurement history screen 118, a page display 122, page switching buttons 124 and 126, a file save button 128, a memory take-out button 130, and a line selection button 131 are displayed on the right side.

[0164] The page display 122 displays the page number of the measurement history detailed information 120 currently being displayed, and it is possible to switch pages of the measurement history detailed information 120 by operating page switching buttons 126, 128. In addition, the file save button 128 is operated when storing the measurement history in an external memory such as a memory card connectable to the disaster prevention receiving panel 10, and the memory removal button 130 is operated when removing the connected memory. In addition, by operating the line selection button 131, it is possible to narrow down the measurement history detailed information 120 according to predetermined conditions and display it.

[0165] In the measurement history detailed information 120, information is displayed in a list divided into columns for, for example, line number, date and time, item, upper / lower threshold, measured value, and judgment. Here, for "line number 004" in Fig. 9, the measured value is 1.25 mA, which exceeds the upper threshold of 1.00 mA, so "NG" is displayed in the judgment column, and it can be confirmed that an abnormal current value has occurred in the signal line 12 to which the manual reporting device 16 in the up-bound tunnel is connected. Furthermore, for the other line numbers displayed in the measurement history detailed information 120 in Fig. 9, the measured values ​​are within the range between the upper and lower thresholds, so "OK" is displayed in the judgment column, and it can be confirmed that the signal line 12 is normal.

[0166] (f4. Measurement history narrowing screen) Next, the measurement history narrowing down screen will be described with reference to Fig. 10, which shows an example of a sub-monitor screen serving as the measurement history narrowing down screen.

[0167] When the line selection button 131 is operated on the measurement history screen 118 in Fig. 9, the screen switches to a measurement history narrowing down screen 150 shown in Fig. 10. The measurement history narrowing down screen 150 displays a system selection section 152, a terminal device selection section 154, a section selection section 156, a confirmation button 158, a cancel button 160, a page display 122, page switching buttons 124 and 126, and a close button 162. The page display 122 and the page switching buttons 124 and 126 basically have the same functions as those on the measurement history screen in Fig. 9, so the same reference numerals are used and a description thereof will be omitted.

[0168] The system selection unit 152 selects, for example, from the display of the up line (up line tunnel 1a) and the down line (down line tunnel 1b), and the terminal equipment selection unit 154 selects, for example, from the display of the manual notification (manual notification device 16), the fire hydrant (fire hydrant valve opening / closing detection switch 14), or the duct (duct temperature detector), and the section selection unit 156 selects the section number.

[0169] For example, if you want to narrow down the measurement history to "manual reporting device 16 belonging to section 1 of up-lane tunnel 1a," as shown in Figure 10, select "up-lane" in the system selection section 152, select "manual reporting" in the terminal device selection section 154, select "01" in the section selection section 156, and operate the confirmation button 158, and the narrowed down measurement history detailed information 164 will be displayed, narrowed down to the target signal line.

[0170] Furthermore, operating the cancel button 160 while the refined measurement history detailed information 164 is displayed clears the selected refinement conditions and the refined measurement history detailed information 164. Operating the close button 162 also returns to the measurement history screen 118 in FIG.

[0171] By making it possible to display such a measurement history narrowing down screen 150, it is possible to narrow down and display only the necessary measurement history from the vast amount of stored measurement history, making it possible to efficiently check information related to the line current of the signal line.

[0172] (f5. Abnormality history screen) Next, the abnormality history screen will be described with reference to Fig. 11, which shows an example of a sub-monitor screen that serves as the abnormality history screen.

[0173] As shown in FIG. 11, by operating the abnormality history button 78 displayed below the sub-monitor screen 4610 as shown by hatching, the screen switches to the abnormality history screen 132.

[0174] On the abnormality history screen 132, the measurement history of signal lines that have been determined to have abnormal current values ​​by the current monitoring unit 58 is extracted from the measurement history stored in the memory of the disaster prevention receiving panel 10 and displayed as abnormality history details 136.

[0175] In the detailed abnormality history information 136, information is displayed in a list divided into columns for, for example, line number, date and time, item, and recovery. The recovery confirmation date and time is displayed in the recovery column, and by selecting, for example, the column for the signal line for which recovery has been confirmed from the detailed abnormality history information 136 by touch operation and operating the recovery confirmation button 134, information on the date and time of recovery confirmation is additionally displayed and the measurement history stored in memory is updated.

[0176] Also, taking line number 004 of the detailed abnormality history information 136 as an example, the item column displays "Up line manual notification upper limit value abnormality," which confirms that an abnormal current value has occurred in the signal line connected to the manual notification device 16 of the up line tunnel 1a, where the line current has exceeded the upper limit threshold due to insulation deterioration or the like, and the display in the recovery column also confirms that the signal line has been restored by replacing the signal line or the like.

[0177] Additionally, the abnormality history screen 132 displays a page display 122, page switching buttons 124 and 126, a file save button 128, and a memory removal button 130, but these have basically the same functions as those on the measurement history screen of FIG. 9, and so the same reference numerals are used and their explanations are omitted.

[0178] (f6. Fire line history screen) Next, the fire line history screen will be described with reference to Fig. 12, which shows an example of a sub-monitor screen that serves as the fire line history screen.

[0179] As shown in FIG. 12, by operating the fire history button 80 displayed below the sub-monitor screen 4610 as shown by hatching, the screen switches to the fire line history screen 138.

[0180] On the fire line history screen 138, the measurement history of the signal line corresponding to the line number of the fire line notified to the current monitoring unit 58 by the monitoring control unit 56 is extracted from the measurement history stored in the memory of the disaster prevention receiving panel 10, and displayed as fire line history details information 140.

[0181] In the detailed fire line history information 140, information is displayed in a list divided into columns for, for example, line number, date and time, item, upper threshold, lower threshold, measurement value, and judgment. In the detailed fire line history information 140 of Figure 12, the measurement history of the signal line with line number 005 of the manual notification device 16 in the up-bound tunnel 1a is extracted and displayed.

[0182] Such a fire line history screen 138 makes it possible to check the status of the fire line and the signal line through which the fire notification signal has already been transmitted from the manual notification device 16.

[0183] In addition, the fire line history screen 138 displays a page display 122, page switching buttons 124 and 126, a file save button 128, and a memory removal button 130, but these have basically the same functions as those on the measurement history screen of Figure 9, so the same symbols are used and their explanations are omitted.

[0184] (f7. Fault line history screen) Next, the faulty line history screen will be described with reference to Fig. 13, which shows an example of a sub-monitor screen that serves as the faulty line history screen.

[0185] As shown in FIG. 13, by operating the fault history button 82 displayed below the sub-monitor screen 4610 as shown by the hatching, the screen switches to the fault line history screen 142.

[0186] On the faulty line history screen 142, the measurement history of the signal line corresponding to the line number of the faulty line notified to the current monitoring unit 58 by the monitoring control unit 56 is extracted from the measurement history stored in the memory of the disaster prevention receiving panel 10, and displayed as faulty line history details information 144.

[0187] In the fault line history detailed information 144, information is displayed in a list divided into columns for, for example, line number, date and time, item, upper threshold, lower threshold, measurement value, and judgment. In the fault line history detailed information 144 of Figure 13, the measurement history of the signal line with line number 008 of the manual notification device 16 in the uplink tunnel 1a is extracted and displayed.

[0188] 13, the measurement value on the third and fourth lines is 0.00 mA, which is below the lower threshold of 0.01 mA, and the judgment column is marked "NG," which confirms that in addition to the detection of a disconnection fault by the monitoring control unit 56, the current monitoring unit 58 also determined that the current value was abnormal, and it can be confirmed that a disconnection fault did indeed occur on line number 008. Furthermore, on the fifth line, the measurement value has returned to 0.75 mA, a current value within the threshold range, and the judgment column is marked "OK," which confirms that the disconnection fault has been resolved by replacing the signal line, etc.

[0189] In addition, the faulty line history screen 142 displays a page display 122, page switching buttons 124 and 126, a file save button 128, and a memory removal button 130, but these have basically the same functions as those on the measurement history screen of Figure 9, so the same symbols are used and their explanations are omitted.

[0190] (f8. Fire line abnormality history screen and fault line abnormality history screen) Next, the fire line abnormality history screen and the fault line abnormality history screen will be described.

[0191] For example, by operating the abnormality history button 78 and the fire history button 80 simultaneously, the screen switches to a fire line abnormality history screen that displays detailed abnormality history information extracted from the measurement history stored in the memory of the disaster prevention receiving panel 10, including the measurement history of the signal line that has been determined to have an abnormal current value by the current monitoring unit 58 and corresponds to the line number of the fire line that has been notified to the current monitoring unit 58 by the monitoring control unit 56.

[0192] Furthermore, for example, by operating the abnormality history button 78 and the fault history button 82 simultaneously, the screen switches to a fault line abnormality history screen that displays detailed abnormality history information extracted from the measurement history stored in the memory of the disaster prevention receiving panel 10, including the measurement history of the signal line that has been determined to have an abnormal current value by the current monitoring unit 58 and corresponds to the line number of the fault line that has been notified to the current monitoring unit 58 by the monitoring control unit 56.

[0193] In this way, by further configuring the abnormality history screen that displays the detailed abnormality history information 136 shown in Figure 11 as a fire line abnormality history screen that is narrowed down to fire lines or a fire line abnormality history screen that is narrowed down to faulty lines, it is possible to narrow down the abnormality history to specific signal lines such as fire lines or faulty lines, and to efficiently check information related to the line current of the signal lines.

[0194] [g. Line current monitoring control by current monitoring unit] Next, the line current monitoring control by the current monitoring unit will be described with reference to Fig. 14, which shows an example of a flowchart illustrating the line current monitoring control by the current monitoring unit.

[0195] As shown in FIG. 14, when the current monitoring unit 58 detects that the setting for periodic measurement of current values ​​is made as the initial setting (Yes in step S1), it starts periodic measurement, and when it detects that the periodic measurement timing has arrived (Yes in step S2), it sequentially measures the line currents of all signal lines, determines whether or not an abnormal current value has occurred in the signal line based on the measured line currents (step S3), and stores the measurement results, including the measured current values ​​and determination results, in memory as measurement history (step S4).

[0196] Furthermore, when the current monitoring unit 58 detects an all-designated measurement operation on the sub-monitor screen 4610 that has been set to the all-designated measurement screen 84 (Yes in step S5), it sequentially measures the line currents of all signal lines, determines whether or not an abnormal current value has occurred in the signal line based on the measured line currents (step S6), and displays the measurement results as detailed measurement information 104 (step S7). Note that in step S7, the measurement results from the all-designated measurement may be stored in memory as measurement history.

[0197] Furthermore, when the current monitoring unit 58 detects a selective measurement operation in which a predetermined signal line is selected on the sub-monitor screen 4610 that is the selected measurement screen 106 (Yes in step S8), it measures the line current of the signal line selected by the selective measurement operation, determines whether or not an abnormal current value has occurred in the signal line based on the measured line current (step S9), and displays the measurement result as detailed measurement information 116 (step S10). Note that in step S10, the measurement result from the selective measurement may be stored in memory as a measurement history.

[0198] Furthermore, when the current monitoring unit 58 detects a measurement history display operation on the sub-monitor screen 4610 (Yes in step S11), it reads the measurement history from memory and switches to the measurement history screen 118, which displays the measurement history as the measurement history detailed information 120 (step S12). Note that by switching from the measurement history screen 118 in step S12 to the measurement history narrowing screen 150, it is possible to display narrowed measurement history detailed information 164 that has been narrowed down by system, terminal device, section, etc.

[0199] In addition, when the current monitoring unit 58 detects an operation to display the fire line history on the sub-monitor screen 4610 (Yes in step S13), it reads from memory the measurement history of the signal line corresponding to the line number of the fire line notified by the monitoring control unit 56 and switches to the fire line history screen 138, which displays the measurement history as fire line history detailed information 140 (step S14).

[0200] Furthermore, when the current monitoring unit 58 detects an operation to display the faulty line history on the sub-monitor screen 4610 (Yes in step S15), it reads from memory the measurement history of the signal line corresponding to the line number of the faulty line notified by the monitoring control unit 56 and switches to the faulty line history screen 142, which displays the measurement history as faulty line history details information 144 (step S16).

[0201] Furthermore, when the current monitoring unit 58 detects an operation to display the abnormality history on the sub-monitor screen 4610 (Yes in step S17), it reads from memory the measurement history of the signal line for which the current value abnormality was determined and switches to the abnormality history screen 132, which displays the measurement history as the abnormality history detailed information 136 (step S18).

[0202] In addition, when the current monitoring unit 58 detects an operation to display the fire line abnormality history on the sub-monitor screen 4610 (Yes in step S19), it determines that the current value is abnormal, and switches to a fire line abnormality history screen in which the measurement history of the signal line corresponding to the line number of the fire line notified by the monitoring control unit 56 is read from memory and displayed as detailed abnormality history information (step S20).

[0203] Furthermore, when the current monitoring unit 58 detects an operation to display the faulty line abnormality history on the sub-monitor screen 4610 (Yes in step S21), it determines that the current value is abnormal, and switches to the faulty line abnormality history screen on which the measurement history of the signal line corresponding to the line number of the faulty line notified by the monitoring control unit 56 is read from memory and displayed as detailed abnormality history information (step S22).

[0204] [h. Modifications of the present invention] Modifications of the disaster prevention system of the present invention will be described. In addition to the above-described embodiment, the disaster prevention system of the present invention includes the following modifications.

[0205] (Main monitor device) In the above embodiment, an LCD display with a touch panel is used as the main monitor device, but it is not limited to an LCD display, and a graphic panel using an operation display unit equipped with various display units and operation units necessary for fire monitoring may also be used.

[0206] (Sub-monitor device) In the above embodiment, the sub-monitor device is fixed inside the housing of the disaster prevention receiving panel by a support frame, but this is not limited to this. For example, the sub-monitor device and the disaster prevention receiving panel can be connected to each other via short-range wireless communication such as Bluetooth (registered trademark), and the sub-monitor device can be detachable from the disaster prevention receiving panel. Furthermore, if the sub-monitor device is detachable from the disaster prevention receiving panel in this manner, a mobile terminal carried by a person can be used as the sub-monitor device. Note that the main monitor device, like the sub-monitor device, can also be connected via wireless communication and detachable from the disaster prevention receiving panel.

[0207] (Initial settings for the main monitor and sub monitor devices) In the above embodiment, the main monitor device is initially set to display the main monitor screen on, and the sub-monitor device is initially set to display the sub-monitor screen off, but this is not limited to this. For example, the initial setting for the sub-monitor device may be powered off, stopping operation, rather than displaying off. Setting power off as the initial setting allows for further reduction in power consumption. Furthermore, the initial setting for the sub-monitor device may also be set to display on.

[0208] (Power state switching operation section for main monitor device and sub monitor device) In the above embodiment, a physical power button is provided on each of the main monitor device and the sub-monitor device as a power state switching operation unit for switching the power on and off of the monitor device, but this is not limited to this. For example, a touch-operable power off button may be additionally displayed on the main monitor screen and the sub-monitor screen.

[0209] In addition, the power supply state switching operation unit may be located at a position away from the monitor device; for example, the power supply state switching operation unit of a sub-monitor device located inside the housing of a disaster prevention receiving panel may be provided at a predetermined position on the outside of the housing or on the main monitor screen, making it possible to switch the power supply state of the sub-monitor device without opening the panel door to access the inside of the housing.

[0210] Furthermore, the display state switching operation unit for switching the display on and off of the monitor device may be displayed on the monitor screen in the same manner as the power state switching operation unit, and its location may also be arbitrary.

[0211] (Main monitor and sub-monitor display content switching operation section) In the above embodiment, a touch-operable switch button is displayed on the main monitor screen and the sub-monitor screen as the display content switching operation unit, but this is not limited to this. For example, instead of displaying a touch-operable switch button, a physical switch may be provided. The type and location of this switch are arbitrary, but for example, it may be located adjacent to the power buttons provided on the main monitor device and the sub-monitor device.

[0212] (Status display and content display displayed on the main monitor screen) In the above embodiment, the status display section and the content display section display sub-monitor status information showing three pieces of information, namely, display on / off information, fire monitoring display information, and line current monitoring display information, on the main monitor screen, but this is not limited to this. Instead of displaying on the screen, physical indicator lights or the like may be used for display.

[0213] (Current monitoring unit judgment) In the above embodiment, the current monitoring unit determines whether a current value is abnormal based on the line current of the signal line, but this is not limited to this. For example, the current monitoring unit may determine whether there is a sign of a current value abnormality in addition to determining whether there is an abnormal current value. In the case where the current monitoring unit determines whether there is an abnormal current value in addition to determining whether there is an abnormal current value, the determination result displayed as the line current monitoring content on the sub-monitor screen is displayed so that it can be distinguished as either an abnormal current value or a sign of an abnormal current value.

[0214] (Fire monitoring information displayed on the main monitor screen) In the above embodiment, the tunnel system diagram that allows the display of compartments as fire monitoring information has been exemplified by the automatic notification compartment display, the hydrant activation compartment display, and the fault compartment display, but is not limited to these. Of course, compartment displays related to terminal devices other than the hydrant valve open / close detection switch 14 and the manual notification device 16 connected to the disaster prevention receiving panel 10 by a signal line can also be displayed, but for example, a compartment display corresponding to a signal line that has been determined by the current monitoring unit to be an abnormal current value or a sign of an abnormal current value may be displayed, and when a compartment display is made for an abnormal current value or a sign of an abnormal current value, it will be displayed in a manner that makes it distinguishable from other compartment displays.

[0215] (Measurement history filtering screen) In the above embodiment, the narrowing down conditions on the measurement history narrowing down screen are the system, the terminal device, and the section, but are not limited to these. Other narrowing down conditions such as the period may also be included.

[0216] (Displays information related to fault detection and general maintenance work) In the above embodiment, the main monitor screen and the sub-monitor screen display fire monitoring information and line current monitoring information, but this is not limiting. The main monitor screen and the sub-monitor screen may also display information other than these, and may, for example, display information related to fault checking and general maintenance work.

[0217] (others) Furthermore, the present invention includes appropriate modifications that do not impair the objects and advantages thereof, and is not limited to the numerical values ​​shown in the above embodiments. [Explanation of symbols]

[0218] 1a: Up line tunnel 1b: Down line tunnel 10: Disaster prevention receiving panel 12, 12 (12-1) to 12 (12-n): Signal line 14: Fire hydrant valve open / close detection switch 16:Manual notification device 18: Fire hydrant equipment 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 rebroadcasting equipment 34: TV monitoring equipment 36: Lighting equipment 40: Control unit 42: P-type transmission section 44: Main monitor device 4410: Main monitor screen 46: Sub-monitor device 4610: Sub monitor screen 48:Alarm section 50: Operation display section 54: Transmission unit 56: Monitoring and control unit 58: Current monitoring section 60: Cabinet 6010, 6012: Panel door 6016: Support frame 62: Display content switching section 64,70: Switch button 65: Sub monitor status information 6510: Display on / off information 6512: Fire monitoring display information 6514: Line current monitoring display information 66: Fire monitoring contents 67: Line current monitoring details 68,72: Power button 84: All specified measurement screen 106:Selection measurement screen 118: Measurement history screen 132: Abnormality history screen 138: Fire line history screen 142: Fault line history screen 150: Measurement history narrowing screen

Claims

1. A disaster prevention system that connects a predetermined terminal device to a disaster prevention receiving panel to monitor abnormalities, a first screen display unit that displays a predetermined first content related to the abnormality monitoring; a second screen display unit that displays a second predetermined content related to monitoring of a line current flowing through a signal line connecting the predetermined terminal device; Equipped with When a predetermined first condition is satisfied, the predetermined second content is displayed on the first screen display unit; A disaster prevention system characterized in that, when a predetermined second condition is satisfied, the predetermined first content is displayed on the second screen display unit.

2. The disaster prevention system according to claim 1, further comprising: a first display content switching operation unit for displaying the predetermined second content on the first screen display unit; a second display content switching operation unit for displaying the predetermined first content on the second screen display unit; Equipped with when a switching operation of the first display content switching operation unit is detected in a state in which the predetermined second content is not displayed on the first screen display unit, the predetermined first condition is determined to be satisfied, and the predetermined second content is displayed on the first screen display unit; A disaster prevention system characterized by the fact that when a switching operation of the second display content switching operation unit is detected while the specified first content is not being displayed on the second screen display unit, the specified second condition is deemed to be satisfied and the specified first content is displayed on the second screen display unit.

3. The disaster prevention system according to claim 1, further comprising: A disaster prevention system characterized in that, as an initial setting, the first screen display unit is set to display on, and the second screen display unit is set to display off.

4. The disaster prevention system according to claim 1, the second screen display unit is capable of displaying predetermined third content related to fault confirmation and maintenance work in addition to the predetermined second content, A disaster prevention system characterized in that the first screen display unit is capable of displaying the predetermined third content when a predetermined third condition is satisfied.

5. The disaster prevention system according to claim 1, further comprising: A disaster prevention system comprising a power state switching operation unit for switching the power of each of the first screen display unit and the second screen display unit between on and off.

6. The disaster prevention system according to claim 1, The first screen display unit is arranged at a predetermined position on the outer surface of the disaster prevention receiving panel so that the display content can be seen from outside the disaster prevention receiving panel, A disaster prevention system characterized in that the second screen display unit is arranged inside the disaster prevention receiving panel so that the display content can be seen from outside the disaster prevention receiving panel under specified conditions.

7. The disaster prevention system according to claim 6, A disaster prevention system characterized in that a display state switching operation unit that switches the display on and off of each of the first screen display unit and the second screen display unit is provided at a predetermined position on the outer surface of the disaster prevention receiving panel.

8. The disaster prevention system according to claim 6, A disaster prevention system characterized in that a status display unit that displays the display status of the second screen display unit is provided at a predetermined position on the outer surface of the disaster prevention receiving panel.

9. The disaster prevention system according to claim 6, A disaster prevention system characterized in that a content display unit that displays the content displayed on the second screen display unit is provided at a predetermined position on the outer surface of the disaster prevention receiving panel.

10. The disaster prevention system according to claim 6, The outer surface of the disaster prevention receiving panel on which the first screen display unit is arranged has a door structure, A disaster prevention system characterized in that the second screen display unit can view the display content from outside the disaster prevention receiving panel when the outer surface of the disaster prevention receiving panel on which the first screen display unit with a door structure is located is opened.

Images