JP2586919Y2 - Residential fire monitoring device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire monitoring system for a house, which is installed in an apartment house or the like, and enables the functions of a plurality of fire detectors installed in the house to be checked from the outside.

[0002]

2. Description of the Related Art Conventionally, a gas leak detector, a fire detector, and the like are installed in a condominium, such as a condominium, for each of the houses to monitor and alert them, and various functions such as an interphone are provided. Some houses have a house information panel that displays information on the outside of the house, and also have an outdoor indicator that displays a gas leak and fire alarm on the outside of each house. There is also provided an alarm monitoring device that receives an alarm signal from each house information panel and receives the alarm signal at a living room receiver installed in a manager's office or the like and collectively monitors a fire or a gas leak.

[0003] Fire detectors are required to be regularly inspected, but such apartment buildings are different from general public buildings, and it is necessary to stand in each dwelling and test. In some cases, entry was refused or the person was absent, and the inability to perform the test as desired occurred. For this reason, in recent years, such houses have been equipped with fire detectors with an inspection function, so that each fire detector can be tested from the outside of each house, and a function has been provided so that the test results can be confirmed with an outdoor indicator. Fire monitoring equipment has become mandatory.

[0004]

[Problem to be solved by the invention] Generally, a fire detector is
Detects fire phenomena such as heat, smoke, flame, etc., and when the detection level is equal to or higher than a predetermined value, changes the terminals connected to a pair of power and signal lines from an off state to an on state to generate an operation signal. Outputting to outside. Fire detectors with an inspection function simply have a switch element (relay, etc.) that short-circuits the terminals based on an external signal. If a heat detector is used, a heater is provided near the heat-sensitive element and external power is turned on. , The heat-sensitive element is heated to be in the detection state, and the operation is confirmed. As described above, in the inspection function test of the on / off type fire detector, only a test as to whether or not to output an operation signal was performed, and the function such as sensitivity could not be confirmed from the test result. Further, the test method is limited to the inspection test method of a limited type of fire detector such as a thermal detector.

[0005]

SUMMARY OF THE INVENTION A fire monitoring system for a house according to the present invention is provided in a house and includes a detection unit for detecting a fire phenomenon such as heat, smoke, flame, etc., and the detection unit has a predetermined level or more. A plurality of fire detectors that output an operation signal by conducting a low impedance between a pair of terminals when a fire phenomenon is detected, and a house information panel that displays a fire alarm when an operation signal of the fire sensor is received. An outdoor indicator for displaying a fire alarm state outside the house in conjunction with the house information panel, wherein the outdoor fire indicator is incorporated inside the outdoor indicator or the outdoor indicator An inspection tester connected to the tester is provided, and the fire detector is connected to the inspection tester and receives an analog signal output from the detection unit in response to an address call when a test state is set. Signal format A function test unit for transmitting the signal, and the detection unit of the fire sensor outputs based on the return data provided from the outdoor indicator or the inspection test device and returned from the function test unit of the fire sensor. A test display device for displaying the analog level is provided.

[0006] In the function test section of the fire detector,
A test signal generator for applying a pseudo test signal to the detector in response to a test command at the time of address calling from the inspection tester is provided.The function tester of the fire detector includes the inspection tester and the tester. When a test state is detected by being connected, a power supply control unit is provided which supplies power to all or a part of the function test unit to make it operable.

[0007]

Function In addition to the operation test of the fire detector, the function test of the initial value and the sensitivity characteristic of the fire detector can be performed by the inspection tester on the outdoor display side.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is an overall block diagram showing a fire monitor for a house according to the present invention, and FIG. 2 is a block diagram showing a fire detector used in the fire monitor. is there.

In FIG. 1, a house fire monitoring device according to the present invention is provided for each house and has a house information panel 1 provided with various functions such as monitoring of fire, gas leakage, door closing, etc., and an interphone, etc. An outdoor indicator 2 that is connected to the panel 1 by a signal line and displays an alarm such as a fire or gas leak that needs to be displayed even outdoors, and a pair of power and signal lines 7 extending from the house information panel 1 At least one or more fire detectors 3 are connected, and test terminals of each fire detector 3 are connected to the outdoor indicator 2 via the transmission line 8. Then, the fire detectors 3 can be individually inspected and tested, and the fire detectors 3 can be installed inside the outdoor indicator 2 or can be inspected and tested.
And an inspection tester 4 connected through the connection terminal of The outdoor display 2 or the inspection tester 4 is provided with a display device (not shown) for displaying the detected analog level based on the return data returned from the fire detector 3.

Further, a gas leak detector 6 is connected to the house information panel 1, and signals from various sensors (not shown) such as a door lock (theft detector) are input and monitored. The house information panel 1 also has various functions such as an interphone. Each house information panel 1 is connected to the house building receiver 5 installed in the manager's room or the like by a signal line, and the information of the fire alarm is also supplied to the house building receiver 5, and the house building receiver 5 is also connected at the same time. An alarm display is provided.

An inspection test of the fire detector 3 installed in the house from the outside of each house in the fire monitoring system for a house configured as described above will be described. First, the inspection tester 4 of the outdoor indicator 2 of the house to be inspected is put into an operating state.
From the inspection tester 4, a transmission signal for address calling is supplied to each fire detector 3 via the transmission line 8.

When the fire detector 3 receives the address call from the inspection tester 4 and receives the address signal and matches the unique address set therein, the fire detector 3 returns the analog output of the detection unit in a predetermined signal format. I do. That is, a steady value (initial value), which is a detection level during normal monitoring, can be known from the display device on the inspection tester 4 side. If the steady-state value is within a predetermined range, it is determined to be normal. If the steady-state value is outside the predetermined range, the sensitivity setting is incorrect, and it can be determined that the sensitivity of the fire detector 3 is abnormal due to contamination, aging, etc. You can also know the degree of abnormality

Further, in the fire detector 3 having a test signal generator for emitting an address signal and a command signal from the inspection tester 4 and outputting a pseudo test signal, the fire detector 3 receives the address signal and sends it to itself. When the address matches the set unique address, the command signal is fetched and a pseudo test signal corresponding to the type of the test command is applied to the detection section, and a signal indicating the analog output of the detection section at this time is returned in a predetermined signal format. I do.

The inspection tester 4 receives the return data from the fire detector 3 and detects the detection information (analog output) of the fire detector 3 by the outdoor display 2 or a display device (not shown) of the inspection tester 4. Is displayed. Since the outdoor indicator 2 originally displays as an alarm when the fire detector 3 operates, the operation signal can be tested at the same time when a pseudo test signal for operating the fire detector 3 is applied to the detection unit.

As shown in FIG. 2, the fire detector 3 detects a fire, such as heat, smoke, flame, etc., and compares the analog output of the detector 30 with a reference level to determine fire. Based on the signal processing unit 31 and the fire determination signal from the signal processing unit 31, the terminals L and C, to which the pair of power / signal lines 7 are connected, conduct with a predetermined impedance to output an operation signal. An alarm output unit 32, a transmission control unit 33 connected to the transmission line 8 via the terminal T and exchanging signals with the inspection test device 4, a detection unit 30 or the signal processing unit 3.
A signal conversion unit 34 that converts the analog signal from the control signal 1 into a predetermined signal format and supplies the signal format to the transmission control unit 33;
The test signal generator 35 for applying a predetermined pseudo test signal to the detector 30 based on the test control signal from the test signal generator 3 and the transmission signal of the inspection tester 4 are detected, or the connection state with the transmission line 8 is determined. It comprises a test signal generator 35, a signal converter 34, and a power controller 36 for supplying power to the transmission controller 33 when the test state is detected. In addition,
Test signal generator 35, signal converter 34, transmission controller 3
3. The power control unit 36 constitutes a function test unit 37. The fire detector 3 is obtained by adding a function test unit 37 to a conventional on / off type fire sensor.

The operation of the fire detector 3 configured as described above will be described. During normal monitoring, only the detection unit 30, the signal processing unit 31, and the alarm output unit 32 are in operation.
When the detection section 30 detects a fire phenomenon of a predetermined level, it outputs an operation signal for conducting between the terminals L and C. The operation information signal is detected by the house information panel 1 and a fire alarm is displayed. The alarm signal of the house information panel 1 is supplied to the outdoor indicator 2 and the house building receiver 5, and is simultaneously displayed as an alarm in the outside and in the central office.

At the time of the inspection test, power is also supplied to the test signal generator 35, the signal converter 34, and the transmission controller 33 based on the operation of the power controller 36. Then, the transmission control unit 33 transmits the inspection tester 4 transmitted via the transmission line 8.
When the transmission signal is received from the device and the address matches the unique address set in the device, the command is analyzed and a control signal corresponding to the test command is output to the test signal generator 35. The test signal generator 35 generates a pseudo test signal according to the control signal and applies it to the detector 30. At this time, the detection unit 30 outputs an analog signal based on the test signal. This analog signal is converted into a predetermined signal format by the signal converter 34 and supplied to the transmission controller 33. The transmission control unit 33 includes a signal conversion unit 34
Is output to the transmission line 8 as return data.

The pseudo test signal generated from the test signal generator 35 is set so that the analog level output from the detector 30 by applying the pseudo test signal becomes a predetermined test level. This test level is the signal processing unit 3
If it is set lower than the level at which the fire is determined in step 1, the test can be performed without putting the fire detector 3 in the operating state. The analog level output from the detection unit 30 by the application of the pseudo test signal is changed to the signal processing unit 31.
In the method of setting so that it becomes the level to judge the fire in
The operation check as well as the function test of the fire detector 3 can be performed at the same time.

When a plurality of commands can be received by using high-performance transmission control unit 33 and test signal generation unit 35, a test combining various test methods can be performed. For example, based on the type of the control signal from the transmission control unit 33, the pseudo test signal generated from the test signal generation unit 35 is set to each step level from zero to the maximum level, or by a test signal that continuously increases, From the analog level from the detection unit 30, an initial value, an operation level, a sensitivity characteristic, and the like can be confirmed.

When the function test section 37 is constructed without the test signal generation section 35, the transmission control section 33 detects the address call from the inspection tester 4 when the detection section 30 receives the address call.
Is returned in a predetermined signal format. That is, a steady value during normal monitoring is returned as return data. From this steady value (initial value), the sensitivity characteristic of the detection unit 30
The operation level can be obtained by calculating in advance,
A function check can be performed to determine whether the characteristic of 0 is within a predetermined range.

Since the number of fire detectors 3 provided in one house is usually several or less, the transmission control unit 33
The number of unique addresses to be set may be small, and such address detection may be as simple as, for example, counting pulses to make an address. The power control unit 36
It is not necessary to control all of the transmission control unit 33, the signal conversion unit 34, and the test signal generation unit 35, and it is possible to reduce the power consumption during normal monitoring even if only the high power consumption circuit is controlled. it can. Further, the power supply control unit 36 is not particularly necessary, and the function test unit 37 is also provided during normal monitoring.
The power supply may be supplied to each of the components, but the provision of the power supply control unit 36 is useful for preventing malfunction of the function test unit 37 and reducing power consumption during normal monitoring.

[0022]

[Effect of the Invention] The fire monitoring system for a house according to the invention has a conventional on-off type fire detector provided with a test function unit, and a test device provided with a display device capable of displaying the detected analog level of the fire detector. Therefore, in normal monitoring, the system can be configured by making use of the characteristics of the on-off type fire detector, which facilitates external signal processing, and is therefore most suitable as a fire monitor for home use. In addition, the inspection test can check not only the operation of the fire detector but also the sensitivity, initial values, and the like. In addition, it is possible to perform inspection tests on fire detectors, such as semiconductor heat detectors, photoelectric smoke detectors, and ion smoke detectors, for which sensitivity and steady-state function tests were conventionally difficult from the outdoors. .

[0023]

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of a fire monitoring device for a house of the present invention.

FIG. 2 is a block diagram showing one embodiment of the fire detector of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing information panel 2 Outdoor display 3 Fire detector 4 Inspection tester 5 Residential building receiver 6 Gas leak detector 7 A pair of lines 8 Transmission line 30 Detection part 31 Signal processing part 32 Alarm output part 33 Transmission control part 34 Signal Conversion unit 35 Test signal generation unit 36 Power control unit 37 Function test unit L, C, T terminals

Claims (3)

(57) [Scope of request for utility model registration] A detection unit for detecting a fire phenomenon such as heat, smoke, flame, etc., wherein a low impedance is applied between a pair of terminals when the detection unit detects a fire phenomenon of a predetermined level or more. A plurality of fire detectors that output an operation signal by conducting at the same time, a housing information panel that displays a fire alarm when an operation signal of the fire sensor is received, and a fire alarm A fire monitor for residential use comprising an outdoor indicator for displaying outdoors, an inspection tester incorporated in the outdoor indicator or connected to the outdoor indicator, The tester is provided with a function test section for returning an analog signal output from the detection section in a predetermined signal format in response to an address call when the test section is connected to the inspection test apparatus, Indicator or top A test display device, which is provided in the inspection test device and displays an analog level output by the detection unit of the fire sensor based on the return data returned from the function test unit of the fire sensor. A fire monitoring device for a house, which is provided. 2. The function tester of the fire detector further comprises a test signal generator for applying a pseudo test signal to the detector in response to a test command at the time of calling an address from the inspection tester. The residential fire monitoring device according to claim 1, wherein: 3. A function test unit of the fire detector is connected to the inspection test device, and when a test state is detected, power is supplied to all or a part of the function test unit so as to be in an operable state. The residential fire monitoring device according to claim 1, further comprising a power control unit that performs the control.