JPH0935167A - Operation inspecting device for disaster prevention system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To execute an operation test by returning a false audible signal with a sensitivity level set up by a sensitivity changeover switch when a monitor signal is sent through a monitor line connected to sensitivity test connecting terminals. SOLUTION: When a signal transmitting/receiving part 11a receives a monitor signal from a repeater 51 in the connected state of sensitivity test connecting terminals T1, T2 to a monitor line L2, an audible signal corresponding to a previously set sensitivity level is returned to the repeater 51 side by a fire sensor sensitivity change-over switch 10. The switch 10 can changes and sets up a sensitivity level corresponding to a practically connected fire sensor and falsely send a signal generated based upon the sensitivity level to be a threshold. The sent DC signal is converted into an analog signal with a level corresponding to sensitivity by a DC amplifier 11, the analog signal is converted into a digital signal indicating each audible signal by a digital signal conversion part 11b and then the digital signal is sent through the signal transmitting/receiving part 11a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation inspection device for a disaster prevention system, and more particularly to an operation inspection of the system at the time of switching the sensitivity of a fire detector, a disconnection and short circuit inspection of a local bell line, and a continuity inspection of a transmission trunk line. The present invention relates to an operation check device for a disaster prevention system that can be easily and hands-free called.

[0002]

2. Description of the Related Art Conventionally, a disaster prevention system has a constitution in which a plurality of fire detectors are connected to a receiver through a monitoring line and a plurality of district bells are connected through a district bell line.
If the fire detector detects heat or smoke that exceeds a certain level,
In the receiver that sent the alert signal to the receiver and received this,
In addition to sounding the fire, sounding the main sound device, interlocking smoke prevention equipment, etc., sound the district bell installed in the proper place,
A fire has been reported.

When such a disaster prevention system is constructed, it is necessary to perform the following operation inspection. First,
Check the operation of the entire disaster prevention system including the receiver in response to the alarm signal from the fire detector. In this inspection method, instead of the fire detector, a plurality of inspection sensors that have been set in advance with the sensitivity level that is the reference for outputting the alarm signal as a threshold are connected to the monitoring line in order, and the monitoring signal from the receiver is connected. In response to each of the notification signals. With this, if you prepare three types of detectors that issue forecasts, fire reports, and interlocking reports in advance for inspection sensors, you can adjust them according to their sensitivity without actually heating or smoking. It is possible to accurately output the alarm signal and to check the operation for each alarm signal.

Secondly, it is checked whether the district bell line connecting the district bells is normally wired. In addition to the continuity test using a tester, this inspection method actually operates by connecting this district bell line to the receiver or repeater as the final connection form and installing a terminator at the end of the district bell line. Check that the wiring has no breaks or short circuits. Third, check whether the transmission trunk connecting the repeater to the receiver is properly wired. This check must be performed between the receiver and the repeater, and between the repeater and another repeater, and since these are composed of a pair of transmission lines for transmission and reception, the 2 devices to be checked The paired transmission line of one of the devices is short-circuited, and the transmission line of the other device is checked for continuity by a tester. In such a case, connect a fire alarm telephone to the receiver or repeater,
The reality is that you are talking while talking to the other party.

[0005]

However, in the conventional disaster prevention system described above, the following problems have occurred when performing the operation inspection. In order to carry out the sensitivity switching inspection of the first fire sensor, the inspection sensor must be used,
Since the fire detector is usually installed in a place where people cannot reach, such as the ceiling, it takes time to replace the fire detector. Further, when changing the signal to be issued depending on the sensitivity of the fire detector, it is necessary to use a plurality of inspection detectors, which is a more troublesome work.
Furthermore, more recently, a disaster prevention system has been developed that can detect fires earlier by increasing the sensitivity of fire detectors during nights and holidays when there are no people. Since the inspection work is also required for this, the inspection work took a long time.

In order to inspect the bell circuit of the second district, the continuity test using a tester or the like cannot perform the inspection including the terminator, and the connection error of the terminator or the lot defect cannot be detected. It was In addition, since a comprehensive inspection including the terminator can be performed only after the receiver and repeater are connected, a fire sensor and interlocking operation confirmation test after delivery of the receiver, etc., but before firefighting inspection. I had to look at the intervals and check, and I was running out of time, and it was a hassle.

In order to inspect the third transmission trunk line, the receiver and the repeater, or the repeater and another repeater are divided into two hands, and the handset of the self-warning telephone is held in the hand or on the shoulder. Since it was necessary to check the continuity using a tester at the same time while sandwiching and making a call, it was a troublesome work.
The present invention has been proposed in view of the above points, and a first object thereof is to connect a sensitivity inspection connection terminal to a monitoring line without connecting a fire detector having a different sensitivity level to the monitoring line of a receiver. An object of the present invention is to provide an operation check device for a disaster prevention system, which enables a receiver to send a pseudo alarm signal to perform an operation test of the system simply by connecting and setting the receiver in a test mode.

A second object is to perform a disconnection and short circuit test of the district bell line if the wiring of the district bell line is completed even during the construction of the system in which the receiver and the repeater are not connected. It is to provide an operation inspection device that can perform. Furthermore, the third purpose is a disaster prevention system in which a continuity check of the transmission trunk line can be easily carried out, and calls between the receiver and repeater using the self-warning telephone and between the repeater and other repeaters can be performed hands-free. It is to provide a system operation inspection device.

Another object of the present invention is to provide a portable operation inspection device for a disaster prevention system which can simultaneously achieve the above-mentioned first to third objects.

[0010]

In order to achieve the above object, the invention according to claim 1 of the present invention is such that a plurality of fire detectors and district bells are connected to a monitoring line derived from a receiver. It is an operation inspection device of the disaster prevention system of the configuration, and the sensitivity test connection terminal that is detachably connected to the monitoring line to which the fire sensor is connected, and the pseudo alarm signal according to the sensitivity level of the fire sensor are changed and set. Fire detector sensitivity changeover switch and the sensitivity test connection terminal are connected to the monitoring line, and when the receiver sends a monitoring signal through the monitoring line, the fire detector sensitivity changeover switch is sent through the monitoring line. A fire sensor sensitivity switching / inspection section is provided, which comprises a transmission control section for returning a pseudo alarm signal of the sensitivity level set by the above.

According to a second aspect of the present invention, the monitoring line to which the district bell is connected is not a district bell line, and the district bell line inspection connection terminal detachably connected to the district bell line and a disconnection inspection switch are provided. It has a disconnection detection lamp, the district bell line inspection connection terminal is connected to the district bell line, and when the disconnection inspection switch is operated, the continuity test of the district bell line is conducted, and the disconnection detection lamp is turned on when the disconnection is detected. A local bell line disconnection inspection section consisting of a disconnection test circuit is provided.

The invention according to claim 3 has a connection terminal for checking the area bell line, a short-circuit inspection switch, and a short-circuit detection lamp, and the connection terminal for the area bell line inspection is connected to the area bell line, and a short-circuit inspection switch is provided. When the is operated, a continuity test of the area bell line is conducted, and a district bell line short circuit inspection section is provided which is composed of a short circuit test circuit for lighting a short circuit detection lamp when a short circuit is detected.

According to a fourth aspect of the present invention, the monitoring line derived from the receiver is used as a transmission trunk line, and a plurality of repeaters are connected to the transmission trunk line, and each of these repeaters has a fire detector. , An operation inspection device for disaster prevention system with a structure connected to a district bell, which has a connection terminal for transmission main line inspection that is detachably connected to the transmission main line, a continuity inspection switch, a continuity buzzer, and a connection for transmission main line inspection. Connect the terminal to the transmission trunk,
When the continuity check switch is operated, the continuity test of the transmission trunk line is conducted, and when the transmission trunk line is normal, a transmission trunk line inspection section is provided which is composed of a continuity test circuit for ringing a continuity buzzer.

According to a fifth aspect of the present invention, a monitoring line derived from a receiver is used as a transmission trunk line, and a plurality of repeaters are connected to the transmission trunk line, and each of these repeaters has a fire detector. , An operation check device for a disaster prevention system in which a district bell is connected and a telephone is provided for each of the receiver and the repeater, and they are connected to each other through a call line. It has a call connection terminal for detachably connecting to the jack, a microphone and a speaker for making a call via the call line, and the call connection terminal is
When connected to the receiver or the repeater, a hands-free communication means is provided which comprises a communication circuit which enables mutual communication with the receiver or the repeater of the other party via the communication line.

The invention according to claim 6 is the fire detector sensitivity switching inspection section, the district bell line disconnection inspection section, the district bell line short circuit inspection section, the transmission trunk line inspection section, and the hands-free call according to any one of claims 1 to 5. A plurality of means are arbitrarily combined and housed in one housing.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external view showing an example of an operation inspection device of a disaster prevention system according to the present invention, and FIG. 2 is a view showing an example of a configuration of a disaster prevention system in which an operation inspection is performed by the operation inspection device of the present invention.

In the disaster prevention system shown in FIG. 2, the receiver 50
A plurality of repeaters 51 are connected to the transmission trunk line L1 derived from the receiver 50 and the plurality of fire detectors S are
The receiver 50 and the plurality of district bells B are connected via a repeater 51 by a district bell line L3. Also, the receiver 5
0 is also connected to a smoke proof device such as a fire door lock ER to be interlocked when the fire detector S is activated via another relay 51. In addition, the terminator 5 which is a resistor is provided at each end of the monitoring line L2 and the district bell line L3.
2 are connected to form a circuit.

The operation inspection device 1 shown in FIG. 1 is equipped with various operation inspection functions of the disaster prevention system, and is composed of an alligator clip or the like for detachably connecting to each line of the disaster prevention system. It is equipped with a plurality of connection terminals connected to the main body of the apparatus by an automatic winding cord, a switch and the like.
A magnet is attached to the back surface of the operation inspection device 1, so that the operation inspection device 1 can be easily attached to the receiver 50 and the repeater 51.

The connection terminals are sensitivity test connection terminals T1 and T2 for connecting to the monitoring line L2, and the area bell line L.
District bell line inspection connection terminal T3 for connecting to 3
T4, transmission trunk line inspection connection terminals T5 and T6 for connecting to the transmission trunk line L1, the receiver 50 or the repeater 51.
In order to connect to the terminal block and jack of the telephone, the connection terminal T7 for communication composed of a pin jack and the power supply terminal (DC24
Although V, 0V) T8 and T9 are provided, the call connecting terminal T7 may be composed of two alligator clips.

The switch for executing the operation inspection function is a fire detector composed of a volume switch or the like for changing and setting the pseudo alarm signal according to the sensitivity level issued by the fire sensor S. Operate to detect the disconnection and short circuit of the sensitivity changeover switch 10 and the district bell line L3.
A district bell line inspection switch 20 having a configuration in which a disconnection inspection switch and a short circuit inspection switch are integrated, and a disconnection detection lamp 21 configured by an LED or the like that lights up when a disconnection of the district bell line L3 is detected, and the same. A short-circuit detection lamp 22 that is composed of an LED and lights up when a short-circuit is detected
, A continuity check switch 30 that is operated to check the continuity of the transmission trunk L1, a continuity buzzer 31 that sounds when the transmission trunk L1 conducts, and a microphone for making a call on the communication line included in the transmission trunk L1. 40 and a speaker 41.

Each operation check function will be described below. First, the fire detector sensitivity switching inspection function will be described (corresponding to claim 1). This function is provided by the sensitivity test connection terminals T1 and T2 and the fire detector sensitivity changeover switch 10
Is executed by the fire detector sensitivity switching / inspection unit including the transmission control unit 11 and the transmission control unit 11. FIG. 3 is a block diagram showing an example of the configuration of the transmission control unit 11.

In the figure, 11a indicates a monitoring line L2 for the repeater 51 (receiver 50, fire unit is also acceptable).
A signal transmitting / receiving unit for transmitting / receiving a signal transmitted / received via
1b is a digital signal converter, and 11c is a DC amplifier. When the signal transmitting / receiving unit 11a receives the monitoring signal from the repeater 51 side with the sensitivity test connection terminals T1 and T2 connected to the monitoring line L2, the sensitivity level preset by the fire detector sensitivity changeover switch 10 is supported. The issued alarm signal is returned to the repeater 51 side.

In the fire detector sensitivity changeover switch 10, the sensitivity level corresponding to the fire detector S that is actually connected can be set to be changeable, and the sensitivity level becomes a threshold value and is issued. The signal is sent in a pseudo manner. For example, when the smoke detector is used, the sensitivity (smoke density) is set to 5 by the fire detector sensitivity changeover switch 10.
By setting to% / m, 10% / m, and 15% / m, the operation inspection device 1 can be used as a forecast, a fire report, and a linked report, respectively.
Can be notified from the side.

The DC signal sent by the setting of the fire detector sensitivity changeover switch 10 is converted into an analog signal of a level corresponding to the sensitivity by the DC amplifier 11c, and the digital signal conversion section 11b digitally indicates each alarm signal. After being converted into a signal, the signal is transmitted via the signal transmitting / receiving unit 11a. As a result, the receiver 50 that receives the notification signal
In the (relay device 51), it is possible to confirm the operation (forecast and fire display, ringing of the bell B of the district, interlocking with smoke prevention equipment, etc.) according to the notification.

Next, the local bell line inspection function will be described (corresponding to claims 2 and 3). This function is to connect the above-mentioned district bell line inspection terminals T3, T4, the disconnection inspection switch, and the district bell line disconnection inspection section including a disconnection test circuit having the disconnection detection lamp 21, the short circuit inspection switch, and the short circuit detection lamp 22. It is executed by the district bell line short circuit inspection section which is composed of the short circuit test circuit that it has. FIG. 4 is a circuit diagram showing an example of the district bell line inspection circuit 23 showing these, and FIG. The figure for demonstrating a method is shown.

As shown in detail in FIG. 5, the district bell line L3 is wired between the repeater 51 (receiver 50) and the district bell B, and the terminator 52 forms a circuit. At the time of inspection, as shown in the figure, the area bell line inspection connection terminals T3 and T4 of the operation inspection device 1 are connected near the repeater 51 side of the area bell line L3 to check for disconnection or short circuit.

When performing a disconnection check, the area bell line inspection switch 20 shown in FIG. 4 is connected to the disconnection check side 20a.
To operate. Then, the contact 23a is closed, and when it is conductive, the relay RY is actuated and the normally closed relay contact ry.
, The disconnection detection lamp 21 does not light up. However, in the disconnection state, since the relay RY does not operate, the disconnection detection lamp 21 lights up.

On the other hand, when performing a short circuit check, the area bell line inspection switch 20 is operated to the short circuit check side 20b. As a result, the power source is the DC-DC converter 23b.
And a resistor R is connected to the Zener diode ZD to form a circuit including a terminator 52. In this case, the short-circuit detection lamp 22 does not light because the flowing current becomes weak, but when the district bell B is in a short-circuit state, the power does not pass through the terminator 52 and a sufficient short-circuit power is supplied, so that the short-circuit occurs. The detection lamp 22 lights up.

Next, the transmission trunk line inspection function will be described (corresponding to claims 4 and 5). This function is executed by the transmission trunk line inspection unit including the transmission trunk line inspection connection terminals T5 and T6, the continuity check switch 30, and the continuity test circuit 32 having the continuity buzzer 31. FIG. 7 is a diagram showing an example of the test circuit 32, and FIG. 7 is a diagram for explaining this inspection method.

As shown in FIG. 7, the transmission trunk line L1 is wired by four transmission lines between the receiver 50 and the repeater 51 or between the repeater 51 and another repeater 51. are doing. At the time of inspection, one of the pair of transmission lines for transmission and reception is short-circuited with the device side, and the transmission line of the other device is connected to the transmission trunk line inspection connection terminal T of the operation inspection device 1.
Connect T5 and T6. In other words, in this figure, SA +, R
Between A +, SB +, RB +, SA-, RA-, SB-,
Continuity will be confirmed between RB and.

As shown in FIG. 6, in one repeater 51, the transmission line is short-circuited by the cable 32a, and in the other repeater 51, the transmission trunk inspection section of the operation inspection device 1 is connected and the continuity inspection switch 30 is operated. Then, the wiring condition is confirmed by whether or not the continuity buzzer 31 sounds. That is, when the buzzer sounds, the continuity test result is normal, and when the buzzer does not sound, the continuity test result is abnormal.

It is efficient to make this confirmation while talking on the receiver 50 or the repeater 51 at both ends. This call is made by inserting the pin jack of the self-warning telephone into the terminal block or jack of the receiver 50 or the repeater and using the handset, or by connecting the call connection terminal T7 of the operation check device 1. A call circuit using the built-in microphone 40 and speaker 41 is used, and a hands-free call is possible in this call.

The operation inspection device 1 described above is
Although all the operation check functions are housed in a single housing, the present invention is not limited to this, and only an arbitrary function of each function is selected and combined. You may do it.

[0034]

As can be understood from the above description, according to the operation inspection device of the disaster prevention system according to claim 1, the fire detector connected to the receiver is inspected at a plurality of different sensitivity levels. Even if it is not replaced with a special sensor, it can easily output a pseudo alarm signal corresponding to any sensitivity level,
Since the operation of the entire disaster prevention system can be confirmed, the work time can be shortened and the sensitivity switching inspection of the fire detector can be performed efficiently. Moreover, the sensitivity level can be freely set by the fire detector sensitivity changeover switch, so that various disaster prevention systems can be inspected.

According to the operation inspection device of the disaster prevention system according to claims 2 and 3, disconnection and short circuit inspection of the local bell line
Even if you do not have a receiver or repeater, it can be done in advance by the configuration including the terminator when the wiring of the district bell line is completed, so you can afford other inspection work and error will occur. Therefore, the quality of the entire system can be improved.

According to the operation check device of the disaster prevention system according to the fourth aspect, the continuity check of the transmission main line can be confirmed by the switch operation without the use of a tester by the presence or absence of a buzzer sound. You can easily carry out while talking on the phone. According to the operation inspection device of the disaster prevention system according to claim 5, calls between the receiver and the repeater using the self-warning telephone and between the repeater and another repeater can be performed without a handset. Since it can be done freely, inspection work can be carried out smoothly and accurately.

According to the operation inspection device of the disaster prevention system of the sixth aspect, the effects of the inventions of the first to fifth aspects can be achieved by one portable device.

[Brief description of drawings]

FIG. 1 is an external view showing an example of an operation inspection device for a disaster prevention system according to the present invention.

FIG. 2 is a diagram showing an example of a configuration of a disaster prevention system in which the operation inspection device according to the present invention is used.

FIG. 3 is a block diagram showing an example of a configuration of a transmission control unit.

FIG. 4 is a diagram showing an example of a district bell line inspection circuit (a district bell line disconnection inspection unit and a district bell line short circuit inspection unit).

FIG. 5 is a diagram for explaining an inspection method for a district bell line.

FIG. 6 is a diagram showing an example of a configuration of a continuity test circuit.

FIG. 7 is a diagram for explaining a method of inspecting a transmission trunk line.

[Explanation of symbols]

1 ... Operation inspection device for disaster prevention system according to the present invention 10 ... Fire detector sensitivity changeover switch 11 ... Transmission control unit 20 ... District bell line inspection switch (disconnection inspection switch, short circuit inspection switch) 21・ ・ ・ Disconnection detection lamp 22 ・ ・ ・ Short circuit detection lamp 23 ・ ・ ・ District bell line inspection circuit (district bell line disconnection inspection unit, district bell line short circuit inspection unit) 30 ・ ・ ・ Continuity check switch 31 ・ ・ ・ Continuity buzzer 32 ... Continuity test circuit 40 ... Microphone 41 ... Speaker 50 ... Receiver 51 ... Repeater 52 ... Terminator T1, T2 ... Sensitivity test connection terminals T3, T4. ..Connecting terminals for area bell line inspection T5, T6 ... Transmission main line connecting terminals T7 ... Call connection terminals T8, T9 ... Power supply terminals L1 to L3 ... Monitoring line L1 ... Transmission Line (call line) L3 · · · zone bell line S · · · fire detector B · · · zone bell

Claims (6)

[Claims] 1. An operation inspection device for a disaster prevention system, in which a plurality of fire detectors and district bells are connected to a monitoring line derived from a receiver, which is detachably connected to the monitoring line to which the fire detector is connected. Connect the sensitivity test connection terminal, the fire detector sensitivity changeover switch for changing and setting the pseudo alarm signal according to the sensitivity level of the fire detector, and the sensitivity test connection terminal to the monitoring line. , When the monitoring signal is sent from the receiver through the monitoring line, the fire detector sensitivity is composed of a transmission control section for returning the pseudo alarm signal of the sensitivity level set by the sensitivity changeover switch through the monitoring line. An operation inspection device for disaster prevention systems, which is equipped with a switching inspection unit. 2. An operation inspection device for a disaster prevention system having a monitoring line derived from a receiver, a plurality of fire detectors connected to a district bell line, and a district bell connected to the district bell. There is no bell line, it has a connection terminal for area bell line inspection that is detachably connected to this area bell line, a disconnection check switch, and a disconnection detection lamp, and the above area bell line inspection connection terminal is connected to the district bell line When the disconnection inspection switch is operated, a continuity test of the district bell line is conducted, and when a disconnection is detected, a district bell line disconnection inspection section consisting of a disconnection test circuit that lights the disconnection detection lamp is provided. Characteristic disaster prevention system operation inspection device. 3. An operation / inspection device for a disaster prevention system in which a monitoring line derived from a receiver, a plurality of fire detectors and a district bell are connected to a district bell line, and the monitoring line to which the district bell is connected is connected to the district. There is no bell line, it has a connection terminal for district bell line inspection that is detachably connected to this district bell line, a short-circuit check switch, and a short-circuit detection lamp, and the above-mentioned district bell line inspection connection terminal is connected to the district bell line When the short-circuit check switch is operated, a continuity test of the district bell line is conducted, and a district bell-line short-circuit check unit consisting of a short-circuit test circuit that lights the short-circuit detection lamp when a short circuit is detected is provided. Characteristic disaster prevention system operation inspection device. 4. A structure in which a monitoring line derived from a receiver is used as a transmission trunk line, a plurality of repeaters are connected to the transmission trunk line, and a fire detector and a district bell are connected to each of these repeaters. The operation check device for the disaster prevention system, which has a connection terminal for transmission main line inspection that is detachably connected to the transmission main line, a continuity inspection switch, and a continuity buzzer. When the connection is made and the continuity check switch is operated, a continuity test of the transmission main line is conducted, and when the transmission main line is normal, a transmission main line inspection section comprising a continuity test circuit for ringing the continuity buzzer is provided. Operation check device for disaster prevention system. 5. A monitoring line derived from a receiver is used as a transmission trunk line, a plurality of repeaters are connected to the transmission trunk line, and a fire detector and a district bell are connected to each of these repeaters.
In addition, a telephone is provided for each of the receiver and the repeater, which is an operation inspection device for a disaster prevention system configured to be connected to each other through a call line, which can be attached to and detached from the terminal block or jack of the receiver or the repeater. It has a call connection terminal for connection, a microphone and a speaker for making a call through the call line, and when the call connection terminal is connected to the receiver or repeater, the call line An operation inspection device for a disaster prevention system, characterized by comprising a hands-free communication means comprising a communication circuit which enables mutual communication with a receiver or a repeater of the other party via a telephone. 6. The operation inspection device for a disaster prevention system according to claim 1, wherein the fire detector sensitivity switching inspection unit, district bell line disconnection inspection unit, district bell line short circuit inspection unit, transmission trunk line inspection unit, hands An operation check device for a disaster prevention system, characterized in that a plurality of free call means are arbitrarily combined and housed in a single housing.