JPH0887691A - Checker and disaster prevention monitoring device - Google Patents

Abstract

PURPOSE: To easily confirm whether trouble is generated at a sensor or any line is disconnected. CONSTITUTION: Concerning the disaster prevention monitoring device provided with a receiver 11, repeater 8 connected to the receiver 11 and fire sensor 6 connected to the repeater 8 and composed of a fire sensing circuit 45 for detecting the change of a physical phenomenon caused by fire and outputting an alarm signal and a check circuit 46 for successively checking the fire sensing circuit 45, this device is provided with a check signal detecting means 91 connected to the repeater 8 so as to detect whether a check signal is returned or not, discriminating means 107 for discriminating whether all the fire sensors 6 are normal or defective, and display means 106 for displaying the disconnection when no check signal is returned, sensor abnormality when the check signal is returned and any sensor defect is detected, and sensor normality when the check signal is returned and sensor normality is detected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a receiver, a repeater connected to the receiver, and a sensor with a check function connected to the repeater, and inspecting the sensor and checking for disconnection. Vessels and disaster prevention monitoring equipment.

[0002]

2. Description of the Related Art Conventionally, as this type of inspection system,
For example, JP-A-1-197899 and JP-A-1-23
The one described in Japanese Patent No. 3699 is known.
In the inspection system described in JP-A-1-197899, after the checking power is supplied from the check circuit to the heat generating circuit of the fire detector, the light emitting diode is caused to emit light so that each fire detector operates normally. Display that it worked.

In this case, when the comparison circuit is not operated due to an abnormality in the heating circuit or the temperature-sensitive section, the fire detector at the starting end is not energized and the detection output of the detection circuit of the check circuit is obtained. Therefore, the light emitting diode does not perform the light emission display, and the inspector can detect the abnormality. Further, when the heat generating circuit becomes abnormal and the heat generating abnormality occurs, the comparator circuit finally generates a comparison output and fires the alarm by turning on the switch element, so that the alarm can be detected by the alarm of the receiver.

Further, in the inspection system disclosed in Japanese Patent Laid-Open No. 1-233699, the check circuit is provided with light emitting diodes corresponding to the number of fire detectors, and the light emitting diodes are constantly turned on. , The fire detector currently being checked is determined according to these voltage drops, and the time from the operation time of the preceding fire detector to the operation time of the fire detector is measured and the operation time of the timer circuit elapses. A judgment circuit is provided to turn off the light emitting diode corresponding to the fire detector when the fire detector does not operate until the above.The inspector knows the operating state of the fire detector by the lighting state of this light emitting diode. be able to.

[0005]

However, in such a conventional inspection system, although the abnormality of the fire detector can be detected by the light emitting diode, whether the detector itself is in failure or not is detected. I could not determine if it was a disconnection. As a result, it took time and effort to investigate the cause of the abnormality and take countermeasures.

The present invention has been made in view of the above-mentioned conventional problems, and provides an inspection device and a disaster prevention monitoring device capable of easily confirming whether a sensor has failed or a line has been broken. The purpose is to provide.

[0007]

FIG. 1 is a diagram for explaining the principle of the present invention. The inspector 17 of the present invention outputs a warning signal by detecting the receiver 11, the relay 8 connected to the receiver 11, and the change in the physical phenomenon caused by the fire connected to the relay 8. The fire detector is connected to the relay 8 of the disaster prevention monitoring device having the fire detector 6 including the fire detection circuit 45 and the inspection circuit 46 that sequentially inspects the fire detection circuit 45, and outputs an inspection signal to output the fire detector. The inspection signal detection means 91 for detecting whether or not the inspection signal has returned, the determination means 107 for determining whether all the fire detectors 6 are good or bad, and the inspection signal Display means 10 for displaying a disconnection when it does not return, a sensor abnormality when an inspection signal returns and a sensor defect is detected, and a sensor normal when an inspection signal returns and a sensor is good
6 is provided.

Further, the disaster prevention monitoring device of the present invention comprises a receiver 1
1, a relay 8 connected to the receiver 11, a fire detection circuit 45 connected to the relay 8 for detecting a change in a physical phenomenon caused by a fire and outputting a warning signal, and the fire detection circuit 45. The fire detector 6 including an inspection circuit 46 that sequentially inspects 45 is provided, and the receiver 11 or the relay 8 has
In addition to having an inspection means for outputting an inspection signal to inspect the fire detector 6, an inspection signal detection means 91 for detecting whether or not the inspection signal has returned and a good or defective fire detector are discriminated. When the inspection signal is not returned, a disconnection is made, when the inspection signal is returned and a sensor defect is detected, a sensor abnormality is detected, and when the inspection signal is returned and a sensor is detected good. Is equipped with a display means 106 for displaying a normal sensor.

Further, the display means 106 provided in the inspector 17 is turned off when the disconnection is displayed, and lights different colors when the sensor abnormality or the sensor normal is displayed. Has become. Further, the display means 106 provided in the disaster prevention monitoring device turns off the light when displaying the disconnection, and lights different colors when displaying the sensor abnormality or the sensor normal. .

[0010]

According to the inspection of the present invention having such a structure, it is detected whether or not the inspection signal is returned, and it is judged whether all the fire detectors 6 are good or bad, and the inspection signal is returned. When it does not come, it is displayed as a disconnection, when the inspection signal comes back and detects a sensor failure, a sensor abnormality is displayed, and when the inspection signal comes back and a sensor is good, a sensor normality is displayed. It is possible to easily confirm whether the fire detector 6 has broken down or the line has been broken, and it takes less time and effort to investigate the cause of the failure and take countermeasures.

Further, the receiver 11 or the repeater 8 is provided with an inspection means for outputting an inspection signal to inspect the fire detector 6, and an inspection signal detection means 91 for detecting whether or not the inspection signal is returned. And a discriminating means 107 for discriminating whether the fire detector 6 is good or bad, and a disconnection when the inspection signal does not return, a sensor abnormality when the inspection signal comes back and a sensor defect is detected, and an inspection signal. When the sensor returns and detects a good sensor, the display means 10 for displaying a normal sensor
Since 6 is provided, the receiver 11 of the disaster prevention monitoring device
Alternatively, it is possible to easily confirm whether the fire detector 6 is out of order or the line is broken by the relay device 8.

Further, since the display means 106 is turned off when displaying a disconnection and lights up a different color when displaying a sensor abnormality or a sensor normal, a disconnection, a sensor abnormality or a sensor normal is displayed. It can be easily confirmed.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. 2 to 6 are views showing an embodiment of the present invention.
FIG. 2 is an overall configuration diagram according to an embodiment of the present invention. Figure 2
, 1 is a housing complex, 2 is the outside of the housing unit of the housing complex 1,
3 is the inside of the dwelling unit of the apartment house 1.

In each of the dwelling units 4 and 5 inside the dwelling unit 3, a fire detector 6 and a speaker 7 having an outdoor inspection function such as an analog type or on / off type smoke detector or a heat detector are installed. A repeater 8 with an outdoor inspection function is installed in each of the dwelling units 4 and 5, and an analog common-use fire sensor 9 and a common-use speaker 10 are installed in a common part of the housing complex 1 such as a corridor or stairs. .

Reference numeral 11 denotes a receiver. From the receiver 11, a power source / signal line 12 composed of a power line, a signal line, and a common line is drawn out for each floor, and a plurality of repeaters 8 are provided on the power source / signal line 12. Connected. In addition, the shared analog-type sensor 9 is connected to the power / signal line 12. The fire detector 6 is connected to the repeater 8 via a signal line 13, a common line 14, and an inspection line 15.

Further, the audio signal line 16 is drawn out from the receiver 11 for each floor, the common-use speaker 10 is connected to the audio signal line 16, and the dwell units 4, 5 are connected via the repeater 8. The speaker 7 is connected. Reference numeral 17 is an outdoor inspection device (inspection device), and the outdoor inspection device 17 is connected to the relay 8 by a connector to inspect the fire detector 6 from outside.

Next, FIG. 3 is an external view of the repeater 8 and the outdoor inspection device 17. In FIG. 3, 8 is the repeater,
The repeater 8 is embedded in a wall surface such as the upper part of the door of each dwelling unit 4, 5. An opening / closing door 18 is provided on the front surface of the repeater 8 so as to be openable / closable, and when the opening / closing door 18 is opened, a connector 19 and an inspection caution light 20 appear.

When the fire detector 6 is inspected by the outdoor inspector 17, the connector 21 is connected to the connector 19 of the outdoor inspector 17. The inspection caution light 20 is provided in the vicinity of the connector 19 so as to warn the inspector not to accidentally disconnect the connector 21 of the outdoor inspection device 17 from the connector 19 of the repeater 8 during inspection. . Also,
An outdoor indicator light 34 for displaying a fire alarm is provided at the center of the front of the repeater 8.

The outdoor inspector 17 is composed of a power supply unit 22 and an inspector body 23, and the connector 21 is connected to the inspector body 23 via a cable 24. Two
Reference numeral 5 denotes a sensor test switch provided in the inspector main body 23, and the inspection of the fire detector 6 is started by turning on the sensor test switch 25. The checker main body 23 is provided with a function check switch 103. The function check switch 103 is a manual switch, and when turned on, the function of the repeater 8 can be checked.

The function check of the repeater 8 is at least performed by the repeater 8
Is to check whether or not the receiver operates normally, but the receiver 11 can also be checked. 26 is a main body 23 of the checker
1 to n normal / abnormal indicator lights are
The abnormality indicator light 26 sequentially displays whether the inspection result of the fire detector 6 is normal or abnormal.

Reference numeral 27 is a buzzer as a sounding unit, and the buzzer 27 informs the inspector of the inspection result of the fire detector 6 by a buzzer sound. Reference numeral 28 denotes an inspection light which indicates that the inspection is in progress. The inspection light 28 blinks during the inspection and lights up when the inspection is completed. Reference numeral 29 is a power switch, and when the power switch 29 is turned on, power is supplied to the internal circuit of the outdoor inspector 17. Reference numeral 30 is a first power supply light, and the first power supply light 30 indicates that power is input from the repeater 8.

Reference numeral 31 is a second power supply lamp, and the second power supply lamp 31
Indicates that the power switch 29 is on or off. Reference numeral 106 denotes an end light as a display means. As will be described later, the end light 106 is turned off to display a disconnection of the inspection line when the inspection signal does not return to the outdoor inspection device 17, and the inspection signal is transmitted to the outdoor inspection. When it returns to the detector 17 and detects a sensor failure, it lights up in red to indicate the sensor abnormality, and when the inspection signal returns to the outdoor inspection device 17 and the sensor is good, the sensor normal is displayed. It lights up in green.

An AC power supply connector 32 is pulled out from the power supply unit 22, and AC power is supplied to the power supply unit 22 via the AC power supply connector 32.
Is converted to direct current. The power supply unit 22 can be inspected even when there is no power supply or AC power supply.
A DC battery 33 is stored. Next, FIG. 4 is a block diagram showing an internal configuration example of the receiver 11, the relay 8 and the fire detector 6.

In FIG. 4, 11 is the receiver,
The receiver 11 includes a power line 41, a signal line 42, and a common line 43.
The repeater 8 is connected via the, and another repeater is connected to the terminal V, the terminal L, and the terminal C of the repeater 8. Further, a pseudo terminating resistor 54 described later is provided. A plurality of (1 to n) fire detectors 6 are connected to the repeater 8 via a signal line 13 and a common line 14 which form a detector line 44 and an inspection line 15.

The fire detector 6 is composed of a fire detection circuit 45 and an inspection circuit 46. The fire detection circuit 45 detects a change in a physical phenomenon caused by a fire and outputs a warning signal to the detector line 44 for inspection. The circuit 46 outputs an inspection signal to the fire detection circuit 45 to artificially operate the fire detection circuit 45 to inspect the fire detection circuit 45 and send an inspection signal to the next-stage sensor. .

The fire detection circuit 45 is composed of, for example, a power supply unit, an operation output unit, a constant voltage circuit, a switching unit, a comparison circuit, a reference value setting circuit, a temperature detection unit, etc., and the inspection circuit 4
Reference numeral 6 is composed of, for example, a test switch unit, a switch circuit, a forced recovery circuit, an alarm detection circuit, and the like. When the fire detector 6 does not operate normally, the inspection circuit 46 forcibly outputs the inspection signal to the fire detector 6 of the next stage by bypassing after a predetermined time.

Reference numeral 47 is a fire detecting section provided in the repeater 8. The fire detecting section 47 detects a warning signal from the fire detector 6 and outputs the warning signal to the fire output section 48 and the outdoor indicator lamp. 34 and the transfer output unit 49. Fire output unit 48
Upon receiving the notification signal, outputs the notification signal to the receiver 11. When the outdoor indicator lamp 34 receives the alarm signal, it displays a fire alarm in front of the repeater 8. When the notification output unit 49 receives the notification signal, it outputs the notification to a house information board or the like.

Reference numeral 50 is a recovery circuit, and the recovery circuit 50 monitors the voltage between the signal line 42 and the common line 43 and restores the fire detector 6 when the voltage is zero V. Reference numeral 51 denotes a disconnection detection unit. The disconnection detection unit 51 detects the voltage at the terminal of the sensor line 44 by loopback wiring, and outputs a disconnection signal when the sensor line 44 is disconnected.

Reference numeral 52 denotes a disconnection signal output section. When the disconnection signal output section 52 receives a disconnection signal from the disconnection detection section 51 or from another repeater, the switch 60 connected in series to the pseudo termination resistor 54 is turned off. Then, the terminal L and the terminal C are separated from each other, and a disconnection signal is transmitted to the receiver 11. Terminal Q1
The test relay 53 and the lighting caution light 20 are connected in series between the + terminal and the terminal Q1-, and the test relay 53 is activated by the drive signal for the test from the outdoor inspection device 17, and the lighting caution light 20 is lit. To do.

Reference numeral 55 is a relay switch for switching the contact from the contact 56 to the contact 57 by the operation of the test relay 53. When the relay switch 55 operates, the sensor line 4
4 is switched from the fire detector 47 to the outdoor inspection device 17. Therefore, the test relay 53 and the relay switch 55
Constitutes a switching means 58 for performing inspection switching. When the test relay 53 is activated, the disconnection output of the disconnection detector 51 is forcibly prohibited.

That is, a switch as a prohibiting means is provided in the disconnection detecting section 51, and the switch is operated by the operation of the test relay 53 to forcibly prohibit the output of the disconnection signal. In FIG. 4, except for the terminal LA, the terminal CB, the terminal LB, the terminal QB, the terminal Q1 +, the terminal Q1-, the terminal QA, the terminal LA1, the terminal CA and the terminal V.
Are connected to the corresponding terminals of the outdoor inspector 17. The terminal V is connected to another terminal V via the fuse 59, and is supplied with power from the receiver 11.

The receiver 11 is provided with a control circuit 71 composed of a CPU, and the control circuit 71 is connected with a receiving circuit 72, a display section 73, a voice notifying section 74, and an operating section 75.
When the receiving circuit 72 receives the alarm signal or the disconnection signal via the repeater 8, the receiving circuit 72 sends the signal to the control circuit 71. A fire alarm and a disconnection are displayed on the display unit 73 under the control of the control circuit 71. The voice notification unit 74 gives a voice notification of a fire alarm or disconnection.
Also, necessary information is input from the operation unit 75.

Next, FIG. 5 is a diagram showing an internal configuration example of the outdoor inspection device 17. In FIG. 5, reference numeral 81 is an outdoor inspector 17.
A control unit including a CPU provided in the control unit 8
1 includes a sensor test unit 82, a test relay drive circuit 83, an operation / display unit 84, a transfer output unit 85, and a dip switch 8
6 and a power supply 87 are provided respectively.

The outdoor inspector 17 has terminals QB, QA, LB, CB, LA1, CA, Q1 +, Q1- and V, and the corresponding terminals of the repeater 8 are provided. Connected to. Outdoor checker 1 for relay 8
Fire detector 6 is inspected by connecting 7.
When the control unit 81 outputs the test signal to the test relay drive circuit 83, the test relay drive circuit 83 outputs the drive signal to the test relay 53 and operates the test relay 53. When the test relay 53 is activated, the inspection warning light 20 is turned on, and the relay switch 55 switches the contact 56 to the contact 57. As a result, the sensor line 44 is switched from the fire detection unit 47 to the outdoor inspection device 17.

The sensor test section 82 includes a test voltage control circuit 8
8, a fire detection circuit 89, an L line voltage control circuit 90, and a voltage detection circuit 91. Test voltage control circuit 8
When receiving the inspection start signal from the control unit 81, the control unit 8 controls the test voltage and outputs an inspection signal, for example, 20 V, to the fire detector 6 via the terminal QA.

The fire detection circuit 89 detects an alarm signal from the fire detector 6 which is pseudo-alarmed by the inspection signal between the terminal LA1 and the terminal CA, and sends the alarm signal to the controller 81. When the L line voltage control circuit 90 receives the restoration signal from the control unit 81, it restores the sensor line 44. Voltage detection circuit 91
Has a function as an inspection signal detecting means and detects whether or not the inspection signal output from the test voltage control circuit 88 has returned.

When the inspection signal does not come back, inspection line 1
It is determined that the disconnection has occurred at 5, and the end lamp 106 is turned off. When the inspection signal is returned, it is determined that the inspection line 15 is not broken, and when the fire sensor 6 is defective, the end lamp 106 is lit in red, and when the fire sensor 6 is good. Turns on the end lamp 106 in green. Further, the voltage detection circuit 91 determines the end of the test by detecting the inspection signal via the terminal QB, and sends the test end signal to the control unit 81.

The operation / display unit 84 includes the plurality of normal / abnormal display lights 26, the in-check light 28, and the buzzer 2.
7, the sensor test switch 25 and the end lamp 106. When the sensor test switch 25 is manually turned on, it outputs an inspection start signal to the control unit 81. The in-inspection lamp 28 blinks in response to the inspection start signal from the control unit 81 and lights up in response to the test end signal, indicating that the inspection has been completed.

The normal / abnormal display lamp 26 sequentially displays the normal or abnormal state of the fire detector 6 in response to a warning signal from the control section 81. The buzzer 27 issues a buzzer sound in response to a warning signal from the control unit 81 to notify the normality or abnormality. End light 106
When you want to detect the inspection signal with the voltage detection circuit 91,
When all the fire detectors 6 are good, they are lit green to indicate that the detectors are normal, and when there are defective fire detectors 6, they are lit red, Display sensor abnormality.

The transfer output section 85 is composed of a plurality of normal / abnormal display transfer output sections 92 made up of photocouplers and an in-inspection transfer output section 93 made up of photocouplers. The normal / abnormal display notification output unit 92 outputs the normal or abnormal signal to a display unit such as a printer in response to the alarm signal from the control unit 81, and the in-check notification output unit 93 checks the control unit 81. The fact that the inspection is being performed is output to another display means by a start signal and a test end signal.

From the terminal V, for example, 2
The voltage of 4V is supplied, and the first power supply lamp 30 is turned on. When the power switch 29 is turned on, the power relay 94 operates. When the relay switch 95 switches the contact 96 to the contact 97 by the operation of the power relay 94, the power circuit 98 including a switching regulator supplies a predetermined voltage to the sensor test unit 82, the control unit 81, the operation / display unit 84 and the like. At the same time, the second power supply lamp 31 is turned on.

The DIP switch 86 is used to switch the operation mode. For example, the DIP switch 86 is set to an automatic inspection mode in which automatic inspection is sequentially performed or an individual inspection mode to inspect the fire detectors 6 one by one. To do. Reference numeral 22 denotes a power supply unit, and the power supply unit 22 is connected to the checker main body 23 via a connector 99 provided on the power supply unit 22 side and a connector 100 provided on the outdoor checker 17 side.

An AC / DC converter 101 is provided in the power supply unit 22, and the AC / DC converter 101 converts the AC power input through the AC power supply connector 32 into DC, and the power supply unit through the connectors 100 and 99. Supply to 87. The DC battery 33 is charged by the AC / DC converter 101, and supplies DC power to the power supply unit 87 by turning on the power switch 102 when a power failure occurs.

The terminals LB and CB are connected to the sensor line 44, and the function inspection switch 103 is connected in the middle of the inspection line 104 drawn out from the terminals LB and CB. Therefore, when the function inspection switch 103 is turned on, the contact 105 is closed and the terminals LB and C are connected.
B is short-circuited. Therefore, the fire detector 6 is in a pseudo alarming state, and the alarming signal is sent to the relay 8.

That is, the terminal LB and the terminal CB are connected to the sensor line 44 drawn from the repeater 8 as shown in FIG.
Is a terminal on the terminal side loop-connected to the repeater 8, and the sensor line 44 can be inspected by short-circuiting this terminal LB and the terminal CB. Reference numeral 107 denotes a discriminating unit provided in the control unit 81 as discriminating means, and the discriminating unit 107 discriminates whether all the fire detectors 6 are good or whether the fire detectors 6 are defective. If all the fire detectors 6 are good, the end light 106 lights up green to indicate that the detector is normal, and if there is a defective fire detector 6, the end light 106 lights up red to indicate that the detector is abnormal. indicate.

Next, the operation will be described. FIG. 6 is a flowchart for explaining the operation of the outdoor inspection device 17. In FIG. 6, first, the DIP switch 86 is set to the automatic inspection mode, and the outdoor inspection device 17 is connected to the relay device 8 in order to inspect the fire detector 6 in step S1. That is, the connector 21 of the outdoor inspection device 17 is inserted into the connector 19 of the relay device 8. A voltage of, for example, 24 V is supplied to the power supply unit 87 from the terminal V, and the first power supply lamp 30 lights up.

When the power switch 29 is turned on in step S2, the power relay 94 operates and the relay switch 95
Is switched from the contact 96 to the contact 97, and the power circuit 98
A predetermined voltage (5V) from the sensor test unit 82 and the control unit 8
1, the power is supplied to the operation / display unit 84, and the second power supply lamp 31 is turned on. Further, when a fire detector 6 from the power supply circuit 98 does not issue a warning, a predetermined voltage pulse (3) which is a forced forward signal for connecting to the fire detector 6 in the next stage.
3V) is output to the control unit 81. Further, the voltage (20 V) from the terminal V is output to the sensor line 44 and the inspection line 15 via the relay switch 95 for power supply and inspection. The control unit 81 uses a voltage pulse (33V)
Alternatively, the inspection signal (20V) is selected and output to the test voltage control circuit 88.

Next, when the sensor test switch 25 is turned on in step S3, the control section 81 outputs a test signal to the test relay drive circuit 83, and the test relay drive circuit 83 outputs a drive signal to the test relay 53. In addition, the control unit 81
Outputs an inspection start signal to the in-inspection lamp 28 of the operation / display section 84 and the in-inspection transfer output section 93 of the transfer output section 85, the in-check light 28 of the operation / display section 84 blinks until it lights up. Display that the inspection is in progress. The in-transmission notification output section 93 of the notification output section 85 also outputs a notification that the inspection is in progress.

On the other hand, in the repeater 8, the test relay drive circuit 8
When the drive signal is received from 3, the test relay 53 is activated, the relay switch 55 is switched from the contact 56 to the contact 57, and the sensor line 44 is switched from the fire detection unit 47 to the outdoor inspection device 17. Next, when the control unit 81 outputs the inspection signal to the test voltage control circuit 88 in step S4, the test voltage control circuit 88 controls the test voltage and outputs the inspection signal to the fire detector 6. Next, step S5
Then, the fire detection circuit 89 detects whether or not the fire detector 6 has issued a pseudo alarm according to the inspection signal.

When the alarm signal is detected, step S6
The normal / abnormal display lamp 26 of the operation / display unit 84 displays normal, and the normal / abnormal display transfer output unit 92 of the transfer output unit 85
Outputs a normal signal. Next, in step S7, the control unit 8
1 outputs a restoration signal to the L line voltage control circuit 90, and the L line voltage control circuit 90 restores the sensor line 44.

When the alarm signal is not detected, step S
8, the normal / abnormal display lamp 26 of the operation / display section 84 displays an abnormality, and the normal / abnormal display of the transfer output section 85 displays the transfer output section 9
2 outputs the abnormality as a notification. Next, in step S7, a forced forward signal is output to the fire detector 6 in the next stage. That is,
The control unit 81 selects the voltage pulse (33 V) sent from the power supply circuit 98 and outputs it from the test voltage control circuit 88 to the fire detector 6 as a forced forward signal.

Next, in step S10, it is detected whether or not the inspection signal is returned. That is, the voltage detection circuit 91 detects whether the voltage at the terminal QB is equal to or higher than a certain voltage. When the inspection signal is not returned, it is determined that the inspection line 15 is broken, or the end lamp 106 is turned off in step S11. Next, when the inspection of all the fire detectors 6 is completed in step S12, the process proceeds to step S13. If not completed, the process returns to step S4 and the inspection is repeated.

In step S13, it is determined whether or not all the fire detectors 6 are normal. When the determination unit 107 determines that all the fire detectors 6 are good, step S14
Then, the end lamp 106 lights up in green, and when the fire detector 6 is defective, the end lamp 106 lights up in red. in this way,
When the end light 106 is turned off, it can be confirmed that the inspection line 15 is broken.
When 6 is lit green, it is easy to confirm that the fire detectors 6 are all normal, and when the end lamp 106 is lit red, it is easy to find that the fire detector 6 is out of order. it can.

In this embodiment, the inspection signal detecting means 91 for detecting the inspection signal, the judging means 107 for judging whether the fire sensor 6 is good or bad, the display for displaying the disconnection, the normal sensor, and the abnormal sensor. Although the means 106 is provided in the outdoor inspection device 17, the inspection signal is output to the receiver 11 or the relay device 8 of the disaster prevention monitoring device to inspect the fire detector 6, and as described above. The inspection signal detection means 91, the discrimination means 107, and the display means 106 may be provided. In this case, the disconnection of the inspection line 15 and the failure of the fire detector 6 can be confirmed by the receiver 11 or the repeater 8. As a result, it takes less time and effort to investigate the cause of the failure and take action.

[0055]

As described above, according to the present invention, when the inspection signal does not return, there is a disconnection, and when the inspection signal returns and a sensor defect is detected, the sensor abnormality and the inspection signal return. When a good sensor is detected, the normal sensor is displayed, so it is possible to easily check whether the sensor has broken down or the line has broken, and investigate the cause of failure and take countermeasures. It takes less time and effort.

[Brief description of drawings]

FIG. 1 is an explanatory view of the principle of the present invention.

FIG. 2 is an overall configuration diagram according to an embodiment of the present invention.

[Figure 3] Exterior view of the repeater and outdoor inspection device

FIG. 4 is a block diagram showing an internal configuration example of a repeater or the like.

FIG. 5 is a block diagram showing an internal configuration example of an outdoor inspection device.

FIG. 6 is a flowchart explaining the operation of the outdoor inspection device.

[Explanation of symbols]

 1: Housing complex 2: Outside of dwelling unit 3: Inside of dwelling unit 4,5: Dwelling unit 6: Fire detector 7: Speaker 8: Repeater 9: Fire detector for common area 10: Speaker for common area 11: Receiver 12: Power / combined signal Line 13: Signal line 14: Common line 15: Check line 16: Voice signal line 17: Outdoor checker 18: Door open / close door 19, 21: Connector 88: Test voltage control circuit 89: Fire detection circuit 90: L line voltage control circuit 91: Voltage detection circuit (inspection signal detection means) 92: Normal / abnormal display transfer output section 93: Inspection transfer output section 94: Power relay 95: Relay switch 96, 97: Contact 98: Power circuit 99, 100: Connector 101: AC / DC converter 102: Power switch 103: Function check switch 104: Repeater check line 105: Contact point 106: End light (display means) 107: Discrimination unit Determining means)

Claims (4)

[Claims] 1. A receiver, a repeater connected to the receiver, a fire detection circuit connected to the repeater for detecting a change in a physical phenomenon caused by a fire and outputting a warning signal, and the fire. In a checker that is connected to the repeater of the disaster prevention and monitoring device equipped with a fire detector composed of a check circuit that sequentially checks the detection circuit and outputs a check signal to check the fire detector, the check signal is Inspection signal detecting means for detecting whether or not it has returned, discrimination means for discriminating whether all the fire detectors are good or defective, disconnection when the inspection signal does not come back, and detection when the inspection signal comes back If a device failure is detected,
An inspector characterized by comprising display means for displaying a normal sensor when an inspection signal is returned and a good sensor is detected. 2. A fire detector that detects a receiver, a repeater connected to the receiver, and a change in a physical phenomenon caused by a fire that is connected to the receiver and outputs a warning signal to a detector line. In a disaster prevention monitoring device equipped with a fire detector consisting of a circuit and an inspection circuit that sequentially inspects the fire detection circuit, an inspection signal is output to the receiver or the repeater to inspect the fire detector. With the means,
An inspection signal detecting means for detecting whether or not the inspection signal has returned, a determination means for determining whether the fire detector is good or defective, a disconnection when the inspection signal does not return, an inspection signal returns When a sensor failure is detected by
A disaster prevention monitoring device comprising display means for displaying a normal sensor when an inspection signal is returned and a good sensor is detected. 3. The display means turns off the light when the disconnection is displayed, and lights different colors when the sensor abnormality or the sensor normal is displayed. Inspector. 4. The display means turns off the light when displaying the disconnection, and lights up different colors when displaying the abnormal sensor or the normal sensor. Disaster prevention monitoring device.