Disaster prevention monitoring system

Abstract

To make it possible to appropriately deal with a failure that has occurred at a user side by displaying a status of a system with weighting of how much it affects the system when the failure is detected.SOLUTION: A display unit 14 for displaying a disaster warning and a system status display 20 for displaying a degree of a failure are separately provided on a receiver panel 12 of an R-type receiver 10. The system status display 20 executes display corresponding to a status where a failure for which disaster prevention monitoring is impossible occurs when the failure for which the disaster prevention monitoring is impossible occurs in the system, executes display corresponding to a status where a need of replacing an appliance in the system arises due to aging deterioration when the need of replacing the appliance in the system arises due to the aging deterioration, and can simultaneously execute the display corresponding to the status where the failure for which the disaster prevention monitoring is impossible and the display corresponding to the status where the need of replacing the appliance in the system arises due to the aging deterioration.SELECTED DRAWING: Figure 1

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 extended into a security zone and outputs a fire alarm or a gas leak alarm using a receiver. [Background technology]

[0002] In a conventional disaster prevention monitoring system known as the R type, for example, a fire detector equipped with a transmission function is connected to a transmission line pulled out from an R type receiver, and a batch AD conversion command is sent from the receiver to the fire detector at a fixed interval to detect sensor data such as smoke concentration and temperature. Next, a polling command specifying the address of the fire detector is sent to receive the sensor data in response, the received sensor data is compared with a predetermined threshold, and if the threshold is exceeded, it is determined that there is a fire. A fire alarm is outputted by sound or an indicator light, and the location of the fire is also displayed from the address of the detector that detected the fire.

[0003] In addition, in a disaster prevention monitoring system known as P-type, on-off type sensors and transmitters are connected to the sensor lines pulled out from the P-type receiver to monitor for fires on a line-by-line basis; when a fire is detected by an 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 receivers of this type of disaster prevention monitoring system, in order to display the system status, malfunctions of the receiver, malfunctions of terminal equipment including sensors, and abnormalities in the wiring connecting the terminal equipment are monitored. If a malfunction or abnormality within the system is detected, a fault indicator light installed in 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 details of the fault are displayed on a display such as an LCD panel or LED installed on the receiver, and disaster prevention personnel, etc. can take the necessary measures after seeing this. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 08-255294 [Patent Document 2] JP 2009-087111 A [Patent Document 3] Japanese Patent Application Publication No. 07-262474 [Patent Document 4] JP 2010-272023 A [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 nature of each individual fault 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 a failure to deal with the fault immediately will result in a loss of monitoring function and an impact on human life, or whether it is not a problem that can be dealt with at a later date, and therefore take 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 in cases where the problem can be resolved at a later date, they may place emergency calls to the maintenance manufacturer, and even if the malfunction is minor, they may have to respond in the middle of the night, which places a burden on the maintenance manufacturer.

[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 indicating the extent to which the fault will affect the system, thereby enabling 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 having a display unit, The display section is If a failure occurs that makes disaster prevention monitoring impossible, a display corresponding to the occurrence of the failure that makes disaster prevention monitoring impossible will be displayed. If the equipment in the system needs to be replaced due to aging, a notice will be displayed indicating that the equipment in the system needs to be replaced due to aging. The system is characterized by its ability to simultaneously display a message corresponding to a state in which a fault has occurred that makes disaster prevention monitoring impossible, and a message corresponding to a state in which equipment in the system needs to be replaced due to deterioration over time.

[0011] The present invention provides a disaster prevention monitoring system having a display unit, The display section is If an abnormality or failure occurs in communication within the system, a display corresponding to the abnormality or failure occurs in communication within the system is displayed, If the equipment in the system needs to be replaced due to aging, a notice will be displayed indicating that the equipment in the system needs to be replaced due to aging. The system is characterized by its ability to simultaneously display a message corresponding to a state in which an abnormality or failure has occurred in communication within the system, and a message corresponding to a state in which equipment within the system needs to be replaced due to deterioration over time.

[0012] The present invention provides a disaster prevention monitoring system having a display unit, The display section is If a fault occurs in an external device that does not affect disaster prevention monitoring, a display corresponding to the state of a fault occurring in an external device that does not affect disaster prevention monitoring will be displayed. If the equipment in the system needs to be replaced due to aging, a notice will be displayed indicating that the equipment in the system needs to be replaced due to aging. A feature of this system is that it can simultaneously display a message corresponding to a state in which an external device that does not affect disaster prevention monitoring has a fault, and a message corresponding to a state in which equipment within the system needs to be replaced due to deterioration over time.

[0013] The present invention provides a disaster prevention monitoring system having a control unit that monitors and evaluates the status of system components, The control unit is characterized by evaluating whether the system component being evaluated is in at least one stage of failure, a state prior to reaching a failure state in which a specified level of deterioration due to aging is evident, or a state in which the system component is not in a failure state and in which no specified level of deterioration due to aging is evident. Effect of the Invention

[0014] (Basic effect) The present invention is a disaster prevention monitoring system equipped with a display unit, and when a failure that makes disaster prevention monitoring impossible occurs, the display unit displays a state in which the failure makes disaster prevention monitoring impossible, and when a device in the system needs to be replaced due to aging, the display unit displays a state in which the device in the system needs to be replaced due to aging. Since the display unit can simultaneously display a state in which a failure that makes disaster prevention monitoring impossible occurs and a state in which the device in the system needs to be replaced due to aging, 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, and can minimize the impact of the failure by repairing the failure with appropriate action. In addition, even if a minor failure occurs, the user can easily distinguish it, and the number of times an emergency call is made in the middle of the night due to anxiety is reduced, and the workload of the maintenance manufacturer can be reduced.

[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 according to 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, thereby making it possible to constantly evaluate the degree of failure using a rank or score and display the system status according to the level of failure.

[0016] (Effect of changes in rank or score for malfunctions) In addition, the control unit can change the assignment of ranks or scores indicating the degree of failure depending on the type of failure of a system component based on a setting operation, so that the ranks or scores indicating the degree of failure can be appropriately changed as needed in response to the type of failure.

[0017] (Effect of rating 1 on the allocation of ranks or points to failures) In addition, when the control unit detects a condition including a failure of a system component, it classifies the condition into one of three stages: failure of at least one stage including a predetermined rank or score, deterioration due to aging that occurs in the system component and requires replacement at the next inspection, which has a higher rank or score next to the failure, and no failure of the system component with the lowest rank or minimum score, where no failure has occurred in the system component.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, while if it is not deterioration due to aging, it can be determined that the system is in a normal state without any problems, and further, no failure of the minimum rank or minimum score can be determined to be a completely normal state.

[0018] (Effect of evaluation by assigning ranks or points to failures) In addition, when the control unit detects a state including a failure of a system component, it classifies the system component into one of the following: a first failure with the highest rank or highest score in which disaster prevention monitoring by the receiver is impossible; a second failure with the second 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 second 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 second highest rank or score after the third failure in which deterioration with time occurs in the system component and it will need to be replaced at the next inspection; or no failure with the lowest rank or lowest score in which no failure has occurred in the system component. The system is classified 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, a first failure, with the highest rank or highest score, can be determined to require immediate action, a second failure, with the next highest rank or score, can be determined to require action at a later date, a third failure, with the next lowest rank or score, can be determined to require action with plenty of time, and a fourth failure, with the next lowest rank or score, can be determined to require no action until the next regular inspection, and a fourth failure, with the fourth rank or score, can be determined to be in a normal state without any problems, and furthermore, no failure, with the lowest rank or score, can be determined to be a completely normal state with no failures at all.

[0019] (The effect of displaying the status by the highest rank or highest score for multiple faults) In addition, when the control unit detects multiple faults in system components, the control unit displays the degree of fault on the system status display according to the highest rank or highest score among the multiple detected faults, so that it is possible to display the system status due to the fault with the highest priority among the multiple faults.

[0020] (Effect of displaying the status by the sum of ranks or points for multiple faults) In addition, when the control unit detects multiple faults in system components, it displays the degree of failure on the system status display according to the total score of the multiple detected faults. Therefore, for example, if multiple faults with low scores have occurred, the system status displayed will be equivalent to a fault with a higher score than the currently occurring faults. Even if the faults are of a low rank or score, since multiple occurrences indicate a high risk to the system, the degree of failure can be increased to enable appropriate response.

[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 has been issued, it is not necessary to display the degree of failure on the system status indicator and there is a possibility that this could confuse the alarm display, so 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 display changing from cool to warm colors as the degree of failure increases) In addition, 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 Meter Display Showing the Degree of Fault) In addition, since the system status indicator is a meter indicator in which the amplitude or rotation angle of the pointer increases as the degree of the malfunction increases, the degree of the malfunction 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 lamp) In addition, the system status indicator is equipped with a single indicator light that changes color depending on the degree of failure, which makes the display of the system status simple and makes it easy to determine the degree of failure just by looking at the display color.

[0026] (Effect of indicating the degree of failure by the blinking cycle) In addition, the system status indicator is designed to change 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 prevents disaster prevention monitoring by the receiver, the indicator light will blink continuously in short cycles, making it easy to determine that the system is in a state that requires emergency action.

[0027] (Effect of control to change the display form of a fault according to the severity of the fault) In addition, the control unit is configured to change the display format of the fault information on the LCD display provided in the receiver in accordance with the increase in the severity of the fault. For example, by changing the character color, character size, font, etc. of the fault information displayed on the LCD display in accordance with the increase in the severity of the fault, the extent of the fault can be strongly conveyed to the user, making it easier to identify the fault that has occurred. [Brief description of the drawings]

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

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

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

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

[0032] The operation unit 16 is provided with a fire / gas leak determination switch, an audio stop switch, a district audio pause switch, etc., which are exposed to the outside. In addition, a recovery switch, a district audio simultaneous alarm switch, a general interlocking stop switch, etc. are provided on the inside of a sub-door 17 of the operation unit 16. In the normal monitoring state, the sub-door 17 is closed, and 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 event occurrence and the contents of the event.

[0034] In addition, 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, by looking at the display on the system status display 20, when a failure occurs, the user can easily tell whether or not the failure requires immediate attention, and can minimize the impact of the failure by taking appropriate measures to repair the failure. Also, 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 the user makes an emergency call late at night out of anxiety, and reducing the workload of the maintenance manufacturer.

[0036] (Disaster prevention monitoring system) Fig. 2 is a block diagram showing an overview of the R-type disaster prevention monitoring system. In Fig. 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, when 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 the receiver addresses.

[0040] The control unit 22 of the R type receiver 10 is composed 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. This voltage mode signal is transmitted as a voltage pulse that changes the voltage of the transmission line 30 between, for example, 18 volts and 30 volts.

[0042] On the other hand, the upstream signals from the analog sensor 32 and the 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 a polling command for normal monitoring in which terminal addresses are specified in sequence, and the analog sensor 32 and repeater 34 respond with normal monitoring when they receive a polling command that matches their own set address. Therefore, in the R-type receiver 10, an analog sensor 32 or repeater 34 that does not respond to a polling command can be considered a fault and detected as such.

[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] When the analog detection data sampled by the analog sensor 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 a fire alert or gas leak is detected, 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, and identifies the group.

[0048] Next, the system performs address-specified polling on each analog sensor or repeater included in the determined group, and by receiving fire responses such as analog data and fire alert data, it recognizes the sensor address of the analog sensor 32 or repeater 34 that detected the fire and performs a fire alarm operation.

[0049] (Fault 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 devices that make up the system, and judges 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, serial communication abnormalities, etc. Fault monitoring of the analog sensor 32 or the repeater 34 includes address duplication, terminal disconnection, internal abnormalities, etc. Furthermore, fault monitoring of external equipment includes the input of fault information from, for example, a fire pump facility which 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 fault items and the ranks and scores indicating the degree of fault.

[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 using LEDs or the like arranged in order from high to low fault level (from right to left) as display elements indicating an increase in the degree of fault, and displays a number from 1 to 5 as a risk level number 45 indicating the level of risk due to a fault above it, and below that is a triangular safety indicator marker 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).

[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 level of risk is low, i.e., when the level of safety is high, the display colors are cool colors such as green or blue, and when the level of risk is high, the display colors are warm colors such as 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 severity of the fault, for example, on a five-level scale, depending on the contents of the fault.

[0056] The first fault is a fault 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 fault 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 the receiver can monitor disaster prevention, but there is an abnormality in the signal line, and it is rated as rank B, the second highest after the first fault, with a score of 3. This second fault includes a failure at the transmission line termination of the transmission line 30, a serial communication abnormality, etc.

[0058] A third type of failure occurs when disaster prevention monitoring is possible using the receiver and the signal lines are normal, but fault information is being input to the receiver from an external device, or when the printer has run 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 is scored 2 points.

[0059] The fourth fault 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 deterioration of a system component has occurred over time and will require replacement at the next inspection, making it the second highest rank after the third fault, D, with a score of 1. With this fourth fault, 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 the minimum score of 0 points, and is a state in which the system is in a completely problem-free and risk-free state.

[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 necessary, 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 system state when a first fault is detected that has the highest rank A and the highest score of 10 in the fault severity ranking in FIG. 4. The first fault indicator 46a, the second fault indicator 46b, and the third fault indicator 46c are either lit or flashing, meaning that the system state is at the highest risk and requires immediate response to the detected fault.

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

[0065] FIG. 5(C) shows the system state when a third fault of rank C in the fault severity scale of FIG. 4 and score 2 is detected. Only the third fault indicator 46c is lit or flashing. 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 state when a fourth fault, score 1, is detected at rank D in the fault severity scale of FIG. 4. Only the fourth fault indicator 46d is lit or flashing, and there is sufficient time to take action. For example, it is sufficient to check for equipment approaching the end of its useful life and consider measures such as replacement.

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

[0068] (Status displayed for multiple faults based on rank or total score) When multiple faults are detected in the system components, the control unit 22 of the R-type receiver 10 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, a total of 3 points is calculated by adding the scores of 2 and 1, respectively, and a fault degree equivalent to the second fault, which is one rank higher, is displayed on the system status display 20. As a result, even if a fault has a low score, multiple occurrences indicate a high risk to the system, and the system status is displayed with a high fault degree, enabling appropriate measures to be taken.

[0070] (Status display stops during disaster warning) When a fire alarm or gas leak alarm is output, the control unit 22 of the R-type receiver 10 controls the system status display 20 to stop displaying the degree of failure and turn off the display. By turning off the display on the system status display 20 when a disaster prevention alarm is output in this way, it is possible to prevent the display on the system status display 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 FIG. 5(A), there is a risk that the alarm will be interpreted as a false alarm caused by a failure, and such confusion can be prevented by turning off the display on the system status display 20.

[0072] (Display of degree of malfunction by meter indicator) FIG. 6 is an explanatory diagram showing the display of ranks A to E, which indicate the degree of failure, using a meter-type system status indicator.

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

[0074] As shown in Figures 6(A) to (E), the display operation of the meter-type system status indicator 60 is based on an evaluation of the degree of failure of the detected first to fourth faults and no faults, and rotates the meter pointer 64 to indicate the corresponding area 64e to 64a of the risk level 5 to 1 on the ring-shaped scale 62 corresponding to the evaluation result, and the system status due to the detected fault can be intuitively grasped from the position of the meter pointer 64.

[0075] The meter-type system status indicator 60 may be an analog meter or a digital meter. In addition to the indication by 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 takes an R-type disaster prevention monitoring system as an example, but a P-type disaster prevention monitoring system may also be similarly configured with a system status indicator provided 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 the system into five stages, namely, first failure to fourth failure, and no failure, and assigning a rank or score to each stage. However, in another embodiment, when the control unit 22 of the R-type receiver 10 detects a condition including a failure of a system component, the control unit 22 may classify the condition into one of the stages: at least one stage of failure including a predetermined rank or score, aging deterioration with a higher rank or score than failure, in which the system component has deteriorated due to aging and will need to be replaced at the next inspection, and no failure with the lowest rank or minimum score, in which no failure has occurred in the system component, and display the degree of failure on the system status indicator according to the rank or score assigned to the classified stage.

[0078] In addition, 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, and the color of the indicator light may change depending on the degree of failure, such as from a cool safety color to a warm danger color as the degree of failure increases.

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

[0081] Furthermore, the display form 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 malfunction of the receiver display) Furthermore, the control unit 22 of the R-type receiver 10 changes the display mode of the liquid crystal panel 15 provided in the R-type receiver 10 in response to an increase in the degree of failure. For example, this change in display mode may involve changing the character color of the failure information displayed on the liquid crystal panel 15 from cool, safe colors to warm, dangerous colors in response to an increase in the degree of failure, or increasing the character size of the failure information in response to an increase in the degree of failure. Also, the character font of the failure information may be increased in size in response to an increase in the degree of failure. Furthermore, both the character display color and character size of the failure information may be changed in response to an increase in the degree of failure.

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

[0084] (others) Furthermore, the present invention includes appropriate modifications that do not impair the objects and advantages of the present invention, and is not limited to the numerical values ​​shown in the above embodiment. [Explanation of symbols]

[0085] 10: R-type receiver 12: Receiver panel 14: Display section 16:Operation unit 17: Child door 18: Printer 20,60: System status indicator 22: Control unit 24: Transmission section 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: Danger marker 62: Ring scale 64: Meter pointer

Claims

1. A disaster prevention monitoring system having a display unit, The display unit is If a failure occurs that makes disaster prevention monitoring impossible, a display corresponding to the occurrence of the failure that makes disaster prevention monitoring impossible will be displayed. If the equipment in the system needs to be replaced due to aging, a notice will be displayed indicating that the equipment in the system needs to be replaced due to aging. A disaster prevention monitoring system characterized by being capable of simultaneously displaying an indication corresponding to a state in which a fault has occurred that makes disaster prevention monitoring impossible, and an indication corresponding to a state in which equipment in the system needs to be replaced due to deterioration over time.

2. A disaster prevention monitoring system having a display unit, The display unit is If an abnormality or failure occurs in communication within the system, a display corresponding to the abnormality or failure occurs in communication within the system is displayed, If the equipment in the system needs to be replaced due to aging, display a message indicating that the equipment in the system needs to be replaced due to aging; A disaster prevention monitoring system characterized by being capable of simultaneously displaying an indication corresponding to a state in which an abnormality or failure has occurred in communication within the system and an indication corresponding to a state in which equipment within the system needs to be replaced due to deterioration over time.

3. A disaster prevention monitoring system having a display unit, The display unit is If a fault occurs in an external device that does not affect disaster prevention monitoring, a display corresponding to the state of a fault occurring in an external device that does not affect disaster prevention monitoring will be displayed. If the equipment in the system needs to be replaced due to aging, a notice will be displayed indicating that the equipment in the system needs to be replaced due to aging. A disaster prevention monitoring system characterized by being capable of simultaneously displaying an indication corresponding to a state in which an external device that does not affect the disaster prevention monitoring has a fault, and an indication corresponding to a state in which equipment within the system needs to be replaced due to deterioration over time.

4. A disaster prevention monitoring system having a control unit that monitors and evaluates the status of system components, A disaster prevention monitoring system characterized in that the control unit evaluates the system component being evaluated as being in at least one stage of failure, a state prior to the failure state in which a specified level of deterioration due to aging is evident, or a state in which the component is not in the failure state and in which the specified level of deterioration due to aging is not evident.

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