Disaster prevention monitoring system

Abstract

When a fault is detected, the system status is displayed with a weighting that indicates the degree of impact on the system, allowing the user to take appropriate action against the fault that has occurred. [Solution] The receiver panel 12 of the R-type receiver 10 is separately equipped with a display unit 14 that displays disaster prevention alerts and a system status indicator 20 that displays the degree of failure. If a failure occurs in the system that makes disaster prevention monitoring impossible, the system status indicator 20 displays a display corresponding to the state in which the failure makes disaster prevention monitoring impossible, and if equipment in the system needs to be replaced due to deterioration over time, it displays a display corresponding to the state in which equipment in the system needs to be replaced due to deterioration over time, and is capable of simultaneously displaying a display corresponding to the state in which a failure that makes disaster prevention monitoring impossible and a display corresponding to the state in which equipment in the system needs to be replaced due to deterioration over time.

Description

[Technical Field]

[0001] The present invention relates to a disaster prevention monitoring system that receives signals from fire detectors and gas leak detectors connected to signal lines drawn into a security zone and outputs a fire alarm or gas leak alarm using a receiver. [Background technology]

[0002] In a conventional disaster prevention monitoring system known as the R-type, a fire detector equipped with a transmission function is connected to a transmission line drawn from an R-type receiver, and a batch AD conversion command is sent from the receiver to the fire detector at regular intervals to detect sensor data such as smoke density and temperature.The receiver then sends a polling command specifying the address of the fire detector to receive the sensor data in response, compares the received sensor data with a predetermined threshold, and if the threshold is exceeded, it is determined to be a fire.A fire alarm is outputted using sound and an indicator light, and the location of the fire is also displayed using the address of the detector that detected the fire.

[0003] In addition, in disaster prevention monitoring systems known as P-type, on-off type sensors and transmitters are connected to the sensor lines drawn from the P-type receiver to monitor fires on a line-by-line basis.When a fire is detected by the on-off type sensor, the P-type receiver detects the alarm current flowing through the line and outputs a fire alarm using sound and indicator lights, and also lights up a district indicator light to indicate the district where the fire has occurred.

[0004] In the receiver of such a disaster prevention monitoring system, in order to display the status of the system, it monitors for malfunctions of the receiver, malfunctions of terminal equipment including sensors, and abnormalities in the wiring connecting the terminal equipment, and when a malfunction or abnormality within the system is detected, a fault indicator light installed on the receiver is turned on and a fault alarm sound is output to notify the user.

[0005] When a fault is reported by the receiver in this way, the location and nature of the fault will be displayed on a display such as an LCD panel or LED installed on the receiver, and disaster prevention personnel will be able to take the necessary measures by looking at this. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 08-255294 [Patent Document 2] Japanese Patent Application Laid-Open No. 2009-087111 [Patent Document 3] Japanese Patent Application Publication No. 07-262474 [Patent Document 4] Japanese Patent Application Laid-Open No. 2010-272023 [Patent Document 5] Japanese Patent Application Publication No. 06-003482 Summary of the Invention [Problem to be solved by the invention]

[0007] However, in such conventional disaster prevention monitoring systems, although the location and details of each individual failure that occurs in the system are displayed, there is a problem in that users who are unfamiliar with the equipment that makes up the system are unable to determine whether failure that occurs will result in a loss of monitoring function and an impact on human life if the failure is not addressed immediately, or whether the problem can be addressed at a later date, and therefore it takes time to take appropriate action.

[0008] Furthermore, users who are unable to determine the extent of the impact of a malfunction become anxious, and even if the problem can be resolved at a later date, they may make emergency calls to the maintenance manufacturer, and even if the malfunction is minor, they may have to respond late at night, which places a burden on the maintenance manufacturer's work.

[0009] The present invention aims to provide a disaster prevention monitoring system that, when a fault is detected, displays the system status with a weighting that indicates the extent to which the fault will affect the system, allowing the user to take appropriate action in response to the fault that occurs. [Means for solving the problem]

[0010] The present invention provides a disaster prevention monitoring system equipped with a display unit, The system status is classified into three levels: a failure indication when a condition including a failure of a system component is detected, an aging deterioration indication when a system component has deteriorated over time and needs to be replaced at the next inspection, and a normal indication when no failure or deterioration has occurred in the system component. The display is 、3 Each state of the system classified into stages is 3 Each stage is displayed in a separate location do It is characterized by:

[0011] The present invention provides a disaster prevention monitoring system equipped with a display unit, The alarms are classified into five levels: the first level indicates a fault that makes disaster prevention monitoring impossible; the second level indicates a fault in the signal line that makes disaster prevention monitoring possible, but the third level indicates a fault in an external device that does not affect disaster prevention monitoring; the fourth level indicates that a system component has deteriorated due to aging and will need to be replaced at the next inspection; and the fifth level indicates that no system component has failed or deteriorated due to aging. The display unit displays the system status, which is divided into five stages, at a designated position for each of the five stages. It is characterized by:

[0013] Disaster prevention monitoring system The system includes a control unit that monitors and evaluates the status of the system components. 、 The control unit determines the system components to be evaluated as follows: Disaster prevention monitoring is not possible The device is characterized by evaluating whether the state is a failure state, a state before the failure state where predetermined aged deterioration is recognized, or a state where the state is not a failure state and where predetermined aged deterioration is not recognized. [Effects of the Invention]

[0014] (Basic effect) The present invention provides a disaster prevention monitoring system equipped with a display unit, The system status is classified into three levels: a failure indication when a condition including a failure of a system component is detected, an aging deterioration indication when a system component has deteriorated over time and needs to be replaced at the next inspection, and a normal indication when no failure or deterioration has occurred in the system component. The display is The system status is divided into three stages, and each stage is displayed in a separate designated position. Therefore, when a failure occurs, the user can easily tell by looking at the display on the system status indicator whether the failure requires immediate action or not, and can minimize the impact of the failure by taking appropriate action to repair the failure. Furthermore, even when a minor failure occurs, the user can easily identify it, reducing the number of times they make an emergency call late at night out of anxiety, and reducing the workload of maintenance manufacturers.

[0015] (Assessment by assigning ranks or points to failures) In addition, the control unit assigns a predetermined rank or a predetermined score indicating the degree of failure depending on the type of failure of the system component, and when a failure of a system component is detected, the degree of failure is displayed on the system status display according to the rank or score assigned to the detected failure, so that the degree of failure is evaluated as a constant using a rank or score, making it possible to display the system status according to the degree of failure.

[0016] (Effect of changing the rank or score for a malfunction) Furthermore, the control unit can change the allocation of ranks or scores indicating the degree of failure depending on the type of failure of a system component based on setting operations, so that the ranks or scores indicating the degree of failure can be changed appropriately as needed to correspond to the type of failure.

[0017] (Effect of Rating 1 on Assigning Ranks or Points to Failures) Furthermore, when the control unit detects a condition including a failure of a system component, it classifies the condition into one of three stages: a failure of at least one level including a predetermined rank or score; age-related deterioration with a higher rank or score than the failure, in which the system component has deteriorated over time and will need to be replaced at the next inspection; or no failure with the lowest rank or minimum score, in which the system component has not failed.The degree of failure is displayed on the system status indicator according to the rank or score assigned to the classified stage, so that if the failure is of a predetermined rank or score, it can be determined that immediate action is required, and if it is not age-related deterioration, it can be determined that the system is in a normal state without any problems, and furthermore, no failure with the lowest rank or minimum score can be determined to be a completely normal state.

[0018] (Effect of evaluation by assigning ranks or points to failures) Furthermore, when the control unit detects a state including a failure of a system component, it classifies the system into one of the following: a first failure with the highest rank or highest score, in which disaster prevention monitoring by the receiver is not possible; a second failure with the next highest rank or score after the first failure, in which disaster prevention monitoring by the receiver is possible but there is a failure in the signal line; a third failure with the next highest rank or score after the second failure, in which disaster prevention monitoring by the receiver is possible and the signal line is normal but fault information is input to the receiver from an external device; a fourth failure with the next highest rank or score after the third failure, in which deterioration over time has occurred in the system component and replacement is required at the next inspection; or no failure with the lowest rank or score, in which no failure has occurred in the system component. The system is categorized into stages, and the degree of failure is displayed on the system status indicator according to the rank or score assigned to the classified stage. Therefore, if there is a first failure with the highest rank or highest score, it can be determined that immediate action is required, if there is a second failure with the next highest rank or score, it can be determined that action should be taken at a later date, if there is a third failure with the next lowest rank or score, it can be determined that a more relaxed response is sufficient, and if there is a fourth failure with the next lowest rank or score, it can be determined that no action is required until the next regular inspection, and if there is a fourth failure, it can be determined that there is no problem in determining that the system is in a normal state, and furthermore, if there is no failure with the lowest rank or score, it can be determined that there are no failures at all and that the system is in a completely normal state.

[0019] (The effect of displaying the status with the highest rank or highest score for multiple failures) Furthermore, when the control unit detects multiple faults in the system components, the degree of the fault is displayed on the system status indicator according to the highest rank or highest score among the multiple detected faults, so that the system status due to the fault with the highest priority among the multiple faults can be displayed.

[0020] (The effect of displaying the status of multiple faults by summing up the rank or points) Furthermore, when the control unit detects multiple faults in system components, it displays the degree of fault on the system status indicator according to the total score of the multiple faults detected. For example, if multiple faults with low scores have occurred, the system status displayed will be that of a fault with a higher score than the currently occurring faults. Even if the faults are of a low rank or score, the occurrence of multiple faults indicates a high risk to the system, so the degree of fault is increased, enabling appropriate action to be taken.

[0021] (Effect of stopping the status display during disaster prevention alarms) In addition, the control unit is configured to stop the display of the degree of failure on the system status indicator when a disaster prevention alarm is output from the receiver.Therefore, when a fire alarm is issued, there is no need to display the degree of failure on the system status indicator, and since this could confuse the alarm display, the system status indicator is stopped and the display is erased.

[0022] (Effect of indicators that increase the number or amount of indications according to the degree of malfunction) In addition, the system status indicator is equipped with display elements whose number or amount of information displayed increases as the degree of failure increases. Therefore, by displaying the degree of failure, for example, by the number of LEDs displayed or by expanding the display area using a bar graph, it becomes possible to intuitively determine the extent of the failure by looking at the display.

[0023] (The effect of the indicator changing from cool to warm colors as the degree of failure increases) Furthermore, the system status indicator changes its display color from cool, safe colors to warm, dangerous colors as the degree of failure increases; for example, the system status indicator changes its display color from green or blue to yellow and then to red as the degree of failure increases, making it possible to intuitively determine the extent of the failure based on the display color of the system status indicator.

[0024] (Effect of displaying the degree of failure on the meter display) Furthermore, since the system status indicator is a meter indicator in which the amplitude or rotation angle of the pointer increases as the degree of failure increases, the degree of failure can be easily determined from the position of the pointer.

[0025] (Effect of indicating the degree of failure by the color of a single indicator light) In addition, the system status indicator is equipped with a single indicator light that changes color depending on the degree of failure, which simplifies the display of the system status and makes it easy to determine the degree of failure just by looking at the display color.

[0026] (Effect of displaying the degree of failure using the flashing cycle) In addition, the system status indicator changes the blinking cycle of the indicator light depending on the degree of failure. For example, by controlling the blinking cycle to shorten as the degree of failure increases, if there is a serious failure that makes disaster prevention monitoring by the receiver impossible, the indicator light will blink continuously in short cycles, making it easy to determine that the system is in a state that requires urgent action.

[0027] (Effect of control that changes the fault display format according to the degree of fault) In addition, the control unit changes the display format of the fault information on the LCD display provided in the receiver according to the increase in the degree of fault. For example, by changing the character color, character size, font, etc. of the fault information displayed on the LCD display according to the increase in the degree of fault, the degree of fault can be strongly emphasized to the user, making it easier to identify the fault that has occurred. [Brief explanation of the drawings]

[0028] [Figure 1] An explanatory diagram showing the R-type disaster prevention receiving panel [Figure 2] Block diagram showing the outline of the R-type disaster prevention monitoring system [Figure 3] An illustration showing the system status indicator [Figure 4] An explanatory diagram showing the relationship between the degree of failure, rank, and score. [Figure 5]An explanatory diagram showing the system status displayed by the system indicator ranks A, B, C, D, and E. [Figure 6] An explanatory diagram showing the system status of ranks A to E displayed on a meter-type system indicator DETAILED DESCRIPTION OF THE INVENTION

[0029] [Disaster prevention monitoring system overview] (R-type receiver) Figure 1 is an explanatory diagram showing an R-type disaster prevention receiving panel. As shown in Figure 1, the R-type receiver 10 is installed in a building's disaster prevention center, manager's office, etc., and is connected to sensors such as fire detectors with transmission functions and gas leak detectors connected via repeaters via transmission lines to monitor abnormalities such as fires and gas leaks, and is also connected to the transmission line to enable control operations of control devices such as local sound equipment.

[0030] The R-type receiver 10 has a door-type receiver panel 12 mounted on the front of a box-shaped housing. A display unit 14, an operation unit 16, and a printer 18 are mounted on the receiver panel 12. An exposed switch is located above the operation unit 16, and a switch is located inside a sub-door 17 that can be opened and closed below it.

[0031] The display unit 14 is provided with a fire indicator light, a gas leak indicator light, and indicator lights for indicating faults in external devices.

[0032] The operation unit 16 is provided with exposed external controls such as a fire / gas leak determination switch, an audio stop switch, and a district audio pause switch. Also, a recovery switch, a district audio simultaneous alarm switch, and a general interlocking stop switch are provided inside a sub-door 17 of the operation unit 16. In the normal monitoring state, the sub-door 17 is closed, but when necessary, the sub-door 17 is opened downwards to operate the switches.

[0033] When an event such as a fire alarm or gas leak alarm occurs on the R-type receiver 10, the printer 18 prints out the time of occurrence of the event and the content of the event.

[0034] Additionally, in this embodiment, a system status indicator 20 is provided on the receiver panel 12 of the R-type receiver 10. The system status indicator 20 displays the degree of failure of the system components, including the receiver itself, detectors such as fire detectors and gas leak detectors, and transmission lines, which are monitored and evaluated by the R-type receiver 10.

[0035] Therefore, when a failure occurs, the user can easily tell whether or not the failure requires immediate attention by looking at the display on the system status display 20, and can minimize the impact of the failure by taking appropriate measures to repair the failure. Furthermore, even when a minor failure occurs, the user can easily tell from the display on the system status display 20 that it is a minor failure, reducing the number of times an emergency call is made late at night due to anxiety, and reducing the workload of the maintenance manufacturer.

[0036] (Disaster prevention monitoring system) Figure 2 is a block diagram showing an overview of the R-type disaster prevention monitoring system. In Figure 2, the R-type receiver 10 is provided with a control unit 22, a transmission unit 24, a display unit 14, an operation unit 16, an alarm unit 26, a report transfer unit 28, and a system status display 20.

[0037] A transmission line 30 is drawn from the R-type receiver 10 toward the security area of ​​the facility, and an analog sensor 32 is connected to the transmission line 30 as a detector.

[0038] A repeater 34 is also connected to the transmission line 30, and an on / off sensor 38 and a transmitter 40 are connected to a sensor line 36 drawn from the repeater 34. A gas leak detector 42 is also connected to another repeater 34.

[0039] The analog sensors 32 and repeaters 34 have a transmission function for bidirectionally transmitting information to and from the R-type receiver 10, and are assigned unique addresses in advance, including the R-type receiver 10. For example, if the maximum number of addresses is 256, the number of analog sensors 32 and repeaters 34 that can be connected to one transmission line 30 is 255 or less, excluding receiver addresses.

[0040] The control unit 22 of the R-type receiver 10 is made up of a computer circuit equipped with a CPU, memory, and various input / output ports, and performs predetermined receiver control by executing a program.

[0041] Downstream signals from the R-type receiver 10 to the analog sensor 32 and repeater 34 are transmitted in voltage mode. These voltage mode signals are transmitted as voltage pulses that change the voltage on the transmission line 30 between, for example, 18 volts and 30 volts.

[0042] In contrast, the upstream signals from the analog sensor 32 and repeater 34 are transmitted in current mode. In this current mode, a signal current is passed through the transmission line 30 at the timing of bit 1 of the transmission data, and the upstream signal is transmitted to the receiver as a so-called current pulse train.

[0043] Reception control by the control unit 22 of the R-type receiver 10 is as follows: During normal monitoring, the R-type receiver 10 transmits polling commands for normal monitoring that sequentially specify terminal addresses, and the analog sensors 32 and repeaters 34 respond to normal monitoring when they receive a polling command that matches their own set address. Therefore, the R-type receiver 10 can detect a fault by considering an analog sensor 32 or repeater 34 that does not respond to the polling command to be a fault.

[0044] The R-type receiver 10 also repeatedly transmits a batch AD conversion command for each polling command transmission cycle to all terminal addresses. When the analog sensor 32 receives the batch AD conversion command from the R-type receiver 10, it samples the detected analog detection data such as smoke density and temperature, and compares it with a predetermined fire level.

[0045] If the analog detection data sampled by the analog detector 32 exceeds the fire level, an interrupt signal is sent to the R-type receiver 10 at the response timing to the polling command. This interrupt signal sends a signal that is not normally used, such as a response bit string of all 1s.

[0046] The repeater 34 also samples the reception status of the on / off sensor 38 or gas leak sensor 42 connected to the sensor line 36 based on the batch AD conversion command from the R-type receiver 10, and if it detects a fire alarm or gas leak, it sends an interrupt signal to the R-type receiver 10.

[0047] When the R-type receiver 10 receives an interrupt signal from the analog sensor 32 or repeater 34, it issues a group search command and receives an interrupt response from the group that includes the analog sensor 32 or repeater 34 that detected the fire, thereby identifying the group.

[0048] Next, the individual analog sensors and repeaters included in the identified group are polled sequentially with assigned addresses, and by receiving fire responses such as analog data and fire alarm data, the sensor address of the analog sensor 32 or repeater 34 that detected the fire is recognized and a fire alarm operation is performed.

[0049] (Failure monitoring of system components) In addition, the control unit 22 of the R-type receiver 10 monitors failures in the system components, including the receiver itself, the transmission line 30, the analog sensor 32, the repeater 34, and even external devices connected via the transmission unit 28.

[0050] The fault monitoring of the R-type receiver 10 includes, for example, backup power supply abnormality, backup power supply voltage abnormality, receiver memory abnormality, receiver communication abnormality, receiver unit abnormality, printer abnormality, printer paper out, etc. Furthermore, the fault monitoring of the R-type receiver 10 manages the useful life of the equipment that makes up the system, and judges the deterioration due to aging when the useful life is approaching.

[0051] Fault monitoring of the transmission line 30 includes faults in the transmission line, faults at the transmission line termination, and serial communication errors. Fault monitoring of the analog sensors 32 and repeaters 34 includes address duplication, terminal disconnection, internal errors, etc. Furthermore, fault monitoring of external devices includes input of fault information from, for example, fire pump equipment that inputs various displays to the R-type receiver 10.

[0052] (System status indicator and failure severity assessment) FIG. 3 is an explanatory diagram showing the system status indicator provided in the R-type receiver in FIG. 1, and FIG. 4 is an explanatory diagram showing a list of the relationship between the failure items and the ranks and scores indicating the degree of failure.

[0053] As shown in FIG. 3, the system status indicator 20 of this embodiment has a first fault indicator 46a, a second fault indicator 46b, a third fault indicator 46c, a fourth fault indicator 46d, and a no-fault indicator 46e, which are all made of LEDs or the like, arranged in order from highest to lowest fault level (from right to left) as display elements indicating an increase in the degree of fault.Above, a number from 1 to 5 is displayed as a risk level number 45 indicating the level of risk due to a fault, and below that, a triangular safety indicator 48 indicating the degree to which the system status is on the safe side (OK) and a triangular danger indicator 50 indicating the degree to which the system status is on the dangerous side (NG) are provided.

[0054] In addition, the display color of the first fault indicator 46a is red, the display color of the second fault indicator 46b is orange, the display color of the third fault indicator 46c is yellow, the display color of the fourth fault indicator 46d is light green or blue, and the display color of the no fault indicator 46e is dark green or blue.When the risk is low, i.e., when the safety level is high, the display color is cool green or blue, and when the risk is high, the display color is warm yellow, orange, or red.

[0055] In this embodiment, as shown in FIG. 4, the control unit 22 of the R-type receiver 10 classifies fault items detected by the disaster prevention monitoring system into ranks and scores indicating the degree of fault, for example, on a five-level scale, depending on the contents of the faults.

[0056] The first failure is a failure that makes it impossible for the receiver to perform disaster prevention monitoring and has the potential to affect human life, and is ranked as the highest rank A with a maximum score of 10. This first failure includes backup power supply abnormality in the R-type receiver 10, backup power supply voltage abnormality, receiver memory abnormality, receiver communication abnormality, receiver unit abnormality, transmission line breakage in the transmission line 30, address duplication in the analog sensor 32 or repeater 34, terminal disconnection, internal abnormality, etc.

[0057] The second fault is a fault in which disaster prevention monitoring by the receiver is possible, but there is an abnormality in the signal line, and it is ranked B, the second highest after the first fault, and is scored 3 points. This second fault includes a failure at the transmission line termination of the transmission line 30, a serial communication abnormality, etc.

[0058] The third type of failure occurs when disaster prevention monitoring is possible using the receiver and the signal lines are normal, but fault information is input to the receiver from an external device, or when the printer runs out of paper and does not require immediate action.This type of failure is ranked C, the second highest after the second type of failure, and scores 2 points.

[0059] The fourth failure is one in which disaster prevention monitoring is possible using the receiver, the signal lines are normal, and no fault information is being input from external devices, but the system components have deteriorated over time and will need to be replaced at the next inspection, resulting in a failure of rank D, the second highest after the third failure, and scoring 1 point. This fourth failure means that the disaster prevention monitoring system is functioning normally, and the risk to the system as a whole is extremely low.

[0060] No failure means that no failure has occurred in the system components, resulting in the lowest rank E and minimum score of 0, and the system is in a state of zero risk with no problems whatsoever.

[0061] Furthermore, the control unit 22 of the R-type receiver 10 can change the allocation of ranks or points indicating the degree of failure according to the failure type of the system components shown in FIG. 4 as needed by a predetermined setting operation.

[0062] (Evaluation and display of the degree of failure) FIG. 5 is an explanatory diagram showing the display of the system status indicator according to ranks A, B, C, D, and E.

[0063] FIG. 5(A) shows the display of the system state when a first fault with the highest rank A and the highest score of 10 points in the fault severity ranking of FIG. 4 is detected, and the first fault indicator 46a, second fault indicator 46b, and third fault indicator 46c are lit or flashing, indicating that the system state is at the highest risk and requires immediate action to address the detected fault.

[0064] FIG. 5(B) shows the system status when a second fault with a score of 3 and rank B in the fault severity scale of FIG. 4 is detected, and both the second fault indicator 46b and the third fault indicator 46c are lit or flashing, indicating that no immediate action is required, but that a prompt response is required.

[0065] FIG. 5(C) shows the system status when a third fault of rank C in the fault severity scale of FIG. 4 and a score of 2 is detected. Only the third fault indicator 46c is lit or flashing, and this is a minor fault such as a failure in an external device or the printer running out of paper. It is not appropriate to leave the fault unattended, so it is best to respond as quickly as possible.

[0066] FIG. 5(D) shows the system status when a fourth fault with a score of 1 and rank D in the fault severity ranking of FIG. 4 is detected. Only the fourth fault indicator 46d is lit or flashing, and there is ample time to take action. For example, it is sufficient to check which devices are nearing the end of their useful life and consider taking action such as replacing them.

[0067] FIG. 5(E) shows the system status when no fault is detected with a score of 0 and rank E in the fault severity scale of FIG. 4, and both the fourth fault indicator 46d and the no fault indicator light 46e are lit or flashing, meaning the system is in a completely normal state.

[0068] (Status is displayed by the total rank or score for multiple faults) When the control unit 22 of the R-type receiver 10 detects multiple faults in the system components, the control unit 22 may display the degree of the fault on the system status display 20 according to the total score of the multiple detected faults.

[0069] 4, for example, the control unit 22 adds the respective scores of 2 and 1 to calculate a total of 3 points, and displays a failure degree equivalent to the second failure, which is one rank higher, on the system status display 20. As a result, even if a failure has a low score, since multiple occurrences pose a high risk to the system, the system status is displayed with a higher failure degree, enabling appropriate action to be taken.

[0070] (Status display stops during disaster prevention alarm) When a fire alarm or gas leak alarm is output, the control unit 22 of the R-type receiver 10 controls the system status indicator 20 to stop displaying the degree of failure and turn off the display. By turning off the display on the system status indicator 20 when a disaster prevention alarm is output in this way, it is possible to prevent the display on the system status indicator 20 from confusing the display of a disaster prevention alarm such as a fire or gas leak.

[0071] For example, when a fire alarm is output, if the system status display 20 displays a system status caused by a failure of another sensor, such as that shown in Figure 5(A), there is a risk that the alarm will be interpreted as a false alarm caused by a failure, and the display on the system status display 20 can be turned off to prevent such confusion.

[0072] (Severity of malfunction is displayed on the meter display) FIG. 6 is an explanatory diagram showing the display of ranks A to E indicating the degree of failure using a meter-type system status indicator.

[0073] As shown in Figure 6(A), the system status indicator 60 of this embodiment has a ring-shaped scale 62 on the meter panel, and the ring-shaped scale 62 is divided into areas 62e to 62a of risk levels 1 to 5 corresponding to the first to fourth faults and no faults in Figure 4, and has a meter pointer 64 that rotates as the degree of fault increases.

[0074] As shown in FIGS. 6A to 6E, the display operation of the meter-type system status indicator 60 is to move the meter pointer 64 to the corresponding risk level 5 to 1 area 6 of the ring-shaped scale 62 corresponding to the evaluation result based on the evaluation of the degree of failure of the detected first to fourth failures and no failure. 2 e~6 2 The meter pointer 64 rotates to point to a, and the degree of danger to the system can be intuitively grasped from the position of the meter pointer 64, and the system state due to fault detection can be recognized.

[0075] The meter-type system status indicator 60 may be an analog meter or a digital meter. In addition to the display using the meter needle 64, the background color of the meter panel may be changed to green or blue, light green or blue, yellow, orange, or red according to the risk level 1 to 5.

[0076] [Modifications of the present invention] (P-type receiver) The above embodiment uses an R-type disaster prevention monitoring system as an example, but a P-type disaster prevention monitoring system may also be similarly configured by providing a system status indicator in the P-type receiver to display the level of danger and / or safety depending on the degree of failure.

[0077] (Evaluation by assigning ranks or points) In the above embodiment, the system status is evaluated by classifying into five levels, from first to fourth failure and no failure, and assigning ranks or scores to the levels. However, in another embodiment, when the control unit 22 of the R-type receiver 10 detects a state including a failure of a system component, it may classify the state into one of the following levels: failure with at least one level including a predetermined rank or score, aging deterioration with a higher rank or score than failure, in which the system component has deteriorated over time and will need to be replaced at the next inspection, or no failure with the lowest rank or minimum score, in which no system component has failed, and display the degree of failure on the system status indicator according to the rank or score assigned to the classified level.

[0078] Furthermore, in the above embodiment, the system status is evaluated in five stages, but this is not limited to this. For example, the system status may be evaluated in three stages: major failure, minor failure, and no failure, or in any other appropriate multiple stages.

[0079] (System Status Indicator) In another embodiment of the system status indicator, the system status indicator may be a single indicator light whose color changes depending on the severity of the failure, such as from a cool, safe color to a warm, dangerous color as the severity of the failure increases.

[0080] In another embodiment of the system status indicator, the blinking period of the indicator light may be changed according to the degree of failure. In this case, the blinking period of the indicator light is controlled to become shorter as the degree of failure increases.

[0081] Furthermore, the display format of the system status indicator is not limited to the above embodiment, and any appropriate display configuration can be used.

[0082] (Display color control according to the degree of failure of the receiver display) Furthermore, the control unit 22 of the R-type receiver 10 changes the display format of the liquid crystal panel 15 provided in the R-type receiver 10 in accordance with an increase in the degree of failure. This change in display format may involve, for example, changing the color of the text of the failure information displayed on the liquid crystal panel 15 from a cool, safe color to a warm, dangerous color in accordance with an increase in the degree of failure, or increasing the text size of the failure information in accordance with an increase in the degree of failure. The font size of the text of the failure information may also be increased in accordance with an increase in the degree of failure. Furthermore, both the text color and the text size of the failure information may be changed in accordance with an increase in the degree of failure.

[0083] In this way, by changing the display format of the malfunction information on the liquid crystal panel 15 in accordance with the increase in the degree of malfunction, the degree of malfunction is strongly emphasized to the user, making it easier to identify the malfunction that has occurred.

[0084] (others) The present invention also 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]

[0085] 10: R-type receiver 12: Receiver panel 14: Display section 16:Operation unit 17: Sub-door 18: Printer 20,60: System status indicator 22: Control unit 24: Transmission unit 26:Alarm section 28:Transfer Department 30: Transmission line 32: Analog sensor 34: Repeater 36: Sensor line 38: On / off detector 40: Transmitter 42: Gas leak detector 45: Risk level number 46a: 1st fault indicator 46b: 2nd fault indicator 46c: 3rd fault indicator 46d: 4th fault indicator 46e: No fault indicator 48: Safety marker 50: Hazard marker 62: Ring scale 64: Meter pointer

Claims

1. A disaster prevention monitoring system equipped with a display unit, The system status is classified into three stages: a failure indication when a state including a failure of a system component is detected, an age-related deterioration indication when a system component has deteriorated due to aging and needs to be replaced at the next inspection, and a normal indication when no failure or age-related deterioration has occurred in the system component. A disaster prevention monitoring system characterized in that the display unit displays each of the system states classified into three stages at a predetermined position independent of each of the three stages.

2. A disaster prevention monitoring system equipped with a display unit, The alarms are classified into five levels: the first level indicates a fault that makes disaster prevention monitoring impossible; the second level indicates a fault in the signal line that makes disaster prevention monitoring possible, but the third level indicates a fault in an external device that does not affect disaster prevention monitoring; the fourth level indicates that a system component has deteriorated due to aging and will need to be replaced at the next inspection; and the fifth level indicates that no system component has failed or deteriorated due to aging. A disaster prevention monitoring system characterized in that the display unit displays each of the system states classified into five levels at a predetermined position independent of each of the five levels.

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