JPS6225399A - Inspector for automatic fire alarm equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an inspection device for automatic fire alarm equipment installed in II structures such as buildings, and particularly to an inspection device for automatically confirming inspection operation results at an inspection work site. Concerning means.

[Conventional technology]

In an automatic fire alarm system installed in a structure such as a building, a fire detector is generally installed in each warning area, for example, on each floor, together with an area monitoring panel, as shown in FIG. In other words, there is 1 smoke detector in the 1st floor warning area.
0, fire detectors such as heat detectors 11 to 1n are present position indicator lamps.

It is arranged together with a manual operation panel 1X equipped with a manual alarm button, an alarm buzzer, a telephone connection connector, etc. Similarly, smoke detector 20, heat detector 21 to
A fire detector such as 20 is disposed together with a manual operation panel 2X having the same configuration as the manual operation panel 1X. Thus, a fire broke out and the smoke detector 10. Heat detectors 11 to 1n or smoke detectors 20. When heat or smoke of a predetermined level or higher is applied to the heat detectors 21 to 2n, etc., a zone-specific alarm signal for each warning zone is transmitted to a monitoring receiver 130 installed in a monitoring room or the like. When the monitoring receiver 130 receives the above-mentioned area-specific alarm signal for each warning area, the fire indicator light in the monitoring receiver gJI30 lights up, and each alarm equipped with a self-holding function is activated, and any It is designed to notify you if a fire has broken out in the warning area.

Conventionally, the following methods have been used to inspect automatic fire alarm equipment having such a configuration. That is, at the inspection work site, inspection worker A uses the inspection operation tool 31 to check the smoke detector 10. Heat detectors 11 to 1n or smoke detectors 20. Heat or smoke of a predetermined level or higher is applied to the heat detectors 21 to 2n, etc.

At this time, if each sensor is normal, the area-specific alarm signal for each warning area will be received by the monitoring receiver vs30, and each alarm will notify which warning area a fire has occurred. be. Monitoring worker B in the monitoring room confirms whether the above operations have been performed properly. This confirmation result, that is, the inspection operation result.

The information is transmitted to the inspection work site by the means described below. Therefore, inspection worker A continues the inspection operation again or the inspection operation of the next sensor based on the transmitted inspection operation result.

FIG. 3 is a diagram showing means for transmitting the inspection operation results confirmed by monitoring worker B to the inspection work site.

In FIG. 3, 32 is a manual operation panel, which corresponds to the manual operations 11X and 2X shown in FIG. 2. The inspection operation results confirmed by the monitoring worker B are communicated by telephone using the telephone handset 33 installed in the monitoring receiver 30 and the telephone handset 34 connected to the manual operation panel 32, or by wireless communication. Call I! The information is transmitted to the inspection work site by radio communication using i35 and i36.

In this case, since inspection work mA is normally devoted to inspection work, the above communication is carried out by liaison worker C, who is different from inspection worker A, and the results are verbally reported to inspection worker A. It is normal to have

[Problem that the invention seeks to solve]

The conventional inspection means having the above configuration has the following problems. That is, first, the inspection work site requires the inspection work site and the communication tool C, and the monitoring receiver B is required at the location where the monitoring receiver 30 is installed. In other words, at least three workers are required in total. Therefore, there have been problems in that personnel costs are high and there is a high risk of confirmation errors or communication errors. Second, each alarm of the monitoring receiver 30 is normally provided with a self-holding function. Therefore, unless the self-holding function is released, it will be impossible to sequentially perform inspections of the plurality of sensors arranged in each warning area using a common alarm. Therefore, each self-holding circuit of the monitoring receiver 30 is normally provided with an automatic return switch for canceling self-holding. However, even if this automatic reset switch is activated, the above-mentioned self-holding circuit will only become inactive, and during inspection operation of smoke detectors 10 and 20 etc., in which the sensor itself has a self-holding function, Even if the automatic reset switch is activated, the self-holding operation of the alarm will still occur. Therefore, in such a case, it is necessary for the monitoring worker B to check the power switch for the alarm activation circuit of the monitoring receiver 30 each time. Therefore, there was a problem that the operation was very complicated and the workability was poor.

Therefore, the present invention automatically transmits the inspection operation results in the monitoring receiver to the inspection workers at the inspection work site, reduces labor costs by reducing the number of workers, and prevents mistakes in checking the inspection operation results. An automatic fire system in which the self-holding of the alarm in the monitoring receiver 30 is automatically released for each inspection operation, regardless of whether the detector itself has a self-holding function or not, thereby greatly improving work efficiency. The purpose is to provide an inspection device for notification equipment.

C. Means for Solving Problems] In order to solve the above problems and achieve the object, the present invention is characterized by taking the following measures. That is, the automatic fire alarm installation inspection device of the present invention generates a zone-specific alarm signal for each warning zone when a predetermined level of heat and/or smoke is applied to the fire detector installed in each warning zone. Inspection of automatic fire alarm equipment that is installed to receive signals from monitoring receivers installed in monitoring rooms, etc., and to notify which warning area a fire has broken out using each alarm equipped with a self-holding function. The following means are installed on both the monitoring receiver side and the inspection work site side.

On the monitoring receiver side, a group of inspection operation detection relays is installed so that when heat and/or smoke is applied to the sensor during inspection work, the inspection operation detection relay group responds together with each alarm of the monitoring receiver, and these inspection operations An oscillator is provided to output a signal having a frequency unique to each warning area according to the operating state of the detection relay group, and a transmitter is further provided to send the output signal from the oscillator to the inspection work site as a detection response signal. . Further, in the alarm activation circuit of the monitoring receiver,
During normal operation, the control switch is controlled to be in the on state. [A control switch that closes the reporting strip energizing circuit is inserted and connected, and this control switch is temporarily controlled to be in the off state after the inspection operation detection relay group is activated. , a self-holding release means is provided for opening the alarm energizing circuit and releasing the self-holding of each of the alarms all at once.

On the other hand, the inspection work site side is provided with a receiving means for receiving the detection response signal transmitted by the transmission means at the inspection work site, and the frequency of the detection response signal received by this receiving means is determined and classified into warning areas. A detection response notification means is provided to notify detection response information.

[Effect]

By taking the above measures, firstly, the inspection operation results from each alarm of the monitoring receiver are automatically transmitted to the inspection work site, and the inspection workers are directly notified of the information. Second, the alarm activation circuit in the monitoring receiver 30 is automatically opened each time a sensor is inspected, regardless of whether the sensor itself has a self-holding function or not. , the self-holding state is properly released.

〔Example〕

FIG. 1 is a circuit diagram showing the configuration of an embodiment of the present invention.

In FIG. 1, the same parts as in FIGS. 2 and 3 are given the same reference numerals, and detailed explanations of those parts will be omitted. The circuit shown in the upper part of FIG. 1 is an internal circuit of the monitoring receiver 30.
Power supply input L1. L2 is connected. One end of a power switch SW1 for the alarm energizing circuit is connected to the line L1, and one end of each of the zone-based alarm signal reception relays R1 to R5 is commonly connected to the other ends of the power switches S to V1. ing. The other ends of the relays R1 to R5 are connected to the power supply line L2 via the respective sensors in the first floor guard area 1F to the fifth floor guard area 5F, respectively. The sensors on the 1st floor guard area 1F to the 5th floor guard zone 15F are as follows:
10 smoke detectors each. Parallel circuit of heat sensor 11~In, manual operation button 1XS of manual operation panel 1X~smoke detector 5
0, heat sensors 51 to 5n, and a manual operation button 5XS of a manual operation panel 5X. Further, the other ends of each of the relays R1 to R5 have their own first contacts rla.
-r5a (self-holding contact) and automatic recovery switch SW
1[+1! It is connected to the supply line L2.

A fire display relay RF is connected between the power supply lines 11 and 12 through the second contacts rib to r5b of the area-specific alarm signal receiving relays R1 to R5 in parallel. In addition, the above-mentioned fire display relay R is installed between the power supply line 1 and 12.
A fire indicator light PF is connected through the contact rf of F. Further, between the power supply 51211.12, the third contact r1cmr5 of the area-specific alarm signal receiving relays R1 to R5 is connected.
Fire area indicator lights P1 to P5 are connected in parallel via C, respectively.

In this way, when a predetermined level of heat and/or smoke is applied to the fire detectors installed in each of the warning zones 1F to 5F, the self-holding function is activated to send out an alarm signal for each warning zone from 1F to 5F. The area-specific alarm signal reception relays R1 to R5 receive the alarm signal, and the fire alarm is notified by the fire indicator light PF.
Each of the fire zone indicator lights P1 to P5 informs which warning zone a fire has broken out in.

A series circuit of a protective diode bridge S1 and an inspection operation detection relay M1 to a series circuit of a protection diode bridge S5 and an inspection operation detection relay M5 are connected in parallel to each of the fire area indicator lights P1 to P5, respectively. ing.

In other words, the inspection operation detection relays M1 to M5 are provided so as to respond to each fire area indicator light P1 to P5 as an alarm. Power is supplied to each of the oscillators 08C1 to 08C5 as an oscillation device through the contacts m1 to m5 of the inspection operation detection relay groups M1 to M5, respectively. This oscillator group 08C1-08
C5 outputs a signal having frequencies f1 to f5 specific to each warning area. The above frequencies f1 to f5 include fl-800 output, f
2-1000Hz, f3-1300Hz, f4
-170082, f5-2200Hz was set as the center frequency. The output signals of the oscillator groups 0801 to 08C5 are supplied to the radio transmitter SS via the level adjuster RX. For example, a transceiver (trade name) is used as the wireless transmitter SS. In this way, signals having frequencies f1 to f5 unique to each warning area are oscillated according to the operating states of the inspection operation detection relay groups M1 to M5, and this oscillation output signal is transmitted to the inspection work site as a detection response signal by the wireless transmitter SS. It has become something that will be done.

Radio receiver R8 is installed at the inspection work site.

This wireless receiver 11iR8 uses, for example, an i-transceiver (product name) like the wireless transmitter SS, and its output terminal is connected to each band filter F via an amplitude limiter A L.
It is connected to the input terminals of 1 to F5.

The output terminal of each band filter F1 to F5 is a detection response indicator light P.
It is connected to L1 to P15. In this way, the detection response signal transmitted from the radio transmitter SS is received at the inspection work site, and the frequency of the received detection response signal is separated and extracted by the bandpass filters F1 to F5 to determine the guarded area. Other detection response information is notified by detection response indicator lights PL1 to PL5.

On the other hand, the relay contacts m1 to m5 and the oscillator group 08C1 to
Each connection point with 03C5 is a detection diode D1 to D5.
are commonly connected to the first timer T1 via the forward direction. The first timer T1 is for setting the required period of inspection operation, and sends out an output signal, for example, 5 seconds after the signal is input through the detection diodes D1 to D5, and transmits this to the second timer T2. It is intended to be supplied. The second timer T2 is for setting the self-hold release operation period, for example, a short period of 1 second or less,
The contact t2 energizes a control relay G as a control switch. The normally closed contact q of the control relay G is connected to both terminals v1 of the power switch SW1 for the alarm energizing circuit.
connected to w. In other words, it is the normally closed contact of control relay G.

is connected in parallel with the switch SWI.

Next, the operation of this embodiment configured as described above will be explained. When starting the inspection work, in Step 1, the alarm energizing circuit power switch SW1 is opened. Note that at this time, control relay G is not energized and normally closed contact Q is in a closed state. Now, at the inspection work site, inspection worker A uses the inspection operation tool 31 to detect the smoke detector 10. heat detector 11
~1n or smoke detector 20. When heat or smoke above a predetermined level is applied to the heat detectors 21 to 2n, etc., if each sensor is normal, an area-specific alarm signal for each warning area is sent to the monitoring receiver 3.
Sent to 0. Then, any of the zone-specific alarm signal reception relays R1 to R5 is energized and performs a self-holding operation. Therefore, the fire indicator relay RF operates and the fire indicator light PF lights up. At the same time, fire area indicator lights P1 to P5
Among them, one corresponding to the area-specific warning signal lights up. Therefore, it is displayed which warning area's sensor has been inspected. At this time, one of the inspection operation detection relay groups M1 to M5 is energized together with one of the fire zone indicator lights P1 to P5 that have been activated. As a result, one of the corresponding oscillator groups 08C1 to 08C5 is activated, and a signal having one of the frequencies f1 to f5 specific to the restricted area is output, and this is wirelessly transmitted from the radio transmitter SS. This transmitted signal is sent to the wireless receiver R at the inspection work site.
3, and after being amplitude limited by the amplitude limiter AL, the signal is passed through a bandpass filter F1 according to the frequency. In other words, the frequency is determined. It is passed through predetermined filters F1 to F5. The generated signal is input to the corresponding detection response indicator light PLI and turned on. Therefore, the inspection worker A can confirm the state in which the inspection operation was performed from the displayed contents.

On the other hand, the motion detection relay 1! When one of YM1 to M5 is energized, the first timer T1 is started, and when a predetermined time, for example, about 5 seconds has elapsed, an output signal is sent from the first timer T1. Then the second timer T2
operates and closes the timer contact t2, so the control relay G operates and opens the normally closed contact for a short fixed period of time, for example, one second or less. Therefore, the alarm signal reception by area is 1 no R1~R.
5's self-hold is released. At this time, the inspected sensor was a smoke detector with a self-holding function 10.20...
・Even if it is, the entire closed circuit including these sensors is opened, so the self-holding state is reliably released. Therefore, inspection worker A can continue with the next inspection operation.

Note that the present invention is not limited to the above embodiment.

For example, in the above embodiment, fire area indicator lights P1-25 which are self-maintaining by area-specific alarm signal receiving relays R1-R5 are exemplified as an alarm, but fire area indicator lights P1 to P
A fire area alarm buzzer or the like may be used instead of 5. Furthermore, in the embodiment, a wireless transmitter SS is used as a transmitting means for transmitting the output signal from the oscillator as a detection response signal to the inspection work site, and the detection response signal transmitted by the transmitting means is received at the inspection work site. Although an example is shown in which the wireless receiving section R8 is used as the receiving means, it is also possible to use a transmitting/receiving means using a telephone using a dedicated telephone line. In the above embodiment, a control relay G is used as a control switch, and its normally closed contact is connected in parallel to the alarm energizing circuit power switch SW1. However, by using a semiconductor switch etc., this switch can be replaced with the above switch SW.
It may be directly connected in parallel to I, or it may be connected in series with switch SW1. It goes without saying that various other modifications can be made without departing from the gist of the present invention.

[Effects of the Invention] As explained above, according to the present invention, firstly, the points @ operation results from each alarm of the monitoring receiver are transmitted to the inspection work site in a self-help manner, and the points (I information will be directly reported.Secondly, the alarm activation circuit in the monitoring receiver is automatically opened each time each sensor is inspected, and the sensor itself has a self-holding function. This means that the self-holding state is accurately released regardless of whether or not there is It is possible to provide inspection equipment 5 for automatic fire alarm equipment, which improves workability.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram showing the configuration of an instant embodiment of the present invention. Figures 2 and 3 are diagrams showing a conventional example, Figure 2 is a schematic diagram showing the overall configuration of automatic fire alarm equipment, and Figure 3 is a diagram showing a means of transmitting inspection operation confirmation results. . 1F...1st floor guard area, 2F...2nd floor guard area, 1
0.20-・Smoke detector, 11~In, 21~2n...
・Heat sensor, IX, 2X, 32...Manual operation box, 3
0... Monitoring receiver, 31... Inspection operation tool, A...
・Inspection worker, B...Monitoring worker, C...Contact work day, 33.34...Telephone handset, 35.36...
・For wireless communication, e...power supply, Ll, L2...power supply line, SWl...power switch for alarm activation circuit, SW2...self-0 recovery switch, R1-R5...area Separate alarm signal receiving relays, r1a to r5a...first (
self-holding) contact, rlb ~ r5b... second contact, r
1C~r5G...Third contact, RF...Fire indicator relay, rf...Relay contact, PF...Fire indicator light, P
1-P5...Fire area indicator light, 81-S5...Protective diode bridge, M1-15...Inspection operation detection relay group, m1-m5...Relay contact, 08CI
~08C5... Oscillator group, Rx... Level adjuster,
SS...Radio transmitting gate, R8...Radio receiver, AL・
・・Amplitude limiter, Fl・−F 5 ・・Band filter,
PL1~PL5...Detection response 5 indicator light, D1~D5...
・Detection diode, T1゜T2... 1st. @2 timer, t2...second timer contact, G...control relay, q...relay contact, ■. ~V...terminal.

Claims (1)

[Claims] When a predetermined level of heat and/or smoke is applied to the fire detector installed in each warning area, a monitoring receiver installed in a monitoring room receives an alarm signal for each warning area. , a device for inspecting automatic fire alarm equipment that is installed to notify in which warning area a fire has occurred through each alarm equipped with a self-holding function, in which heat and or A group of inspection operation detection relays provided so as to respond together with each alarm of the monitoring receiver when smoke is applied, and a frequency unique to each warning area depending on the operating state of these inspection operation detection relay groups. An oscillator that outputs a signal, a transmitter that transmits the output signal from the oscillator as a detection response signal to the inspection work site, and a receiver that receives the detection response signal transmitted by the transmitter at the inspection work site. and,
Detection response notification means that determines the frequency of the detection response signal received by the reception means and reports detection response information for each warning area, and is inserted and connected to the alarm activation circuit of the monitoring receiver and is turned on during normal operation a control switch that closes the alarm energizing circuit under control of a state; and a control switch that temporarily controls the OFF state to open the alarm energizing circuit after the inspection operation detection relay group is activated. An inspection device for automatic fire alarm equipment, comprising a self-holding release means for releasing the self-holding of each of the alarms all at once.