JP4003782B2 - Fire alarm system with test function - Google Patents

Description

  The present invention includes at least an alarm monitoring integrated panel derived from a transmission line for transmitting a control signal and a call signal, and a fire detector installed in a dwelling unit through a sensor line and connected to the transmission line. The present invention relates to a fire alarm system having a test function composed of a house information panel.

  Fire alarm systems equipped with this type of testing function are used in apartment buildings.

  The following Patent Document 1 discloses this type of system, in which a transmission line L1 is derived from an alarm monitoring integrated panel 100 installed in a manager's room or the like, and a housing information panel for each dwelling unit is placed on the transmission line L1. 200, and the fire detector 300 is connected to the housing information board 200 of each dwelling unit by leading out a sensor line L2 (see FIG. 7). Here, the alarm monitoring integrated panel 100 combines the functions of a conventionally used fire receiver and alarm monitoring integrated panel, and the basic concept thereof is proposed in Patent Document 2 below.

  In addition, in this system, it is possible to call the home information board 200 by using a multiplexed signal in which addresses are sequentially specified to the home information board 200 of each dwelling unit, and to perform interphone calls by mutual calls with the dwelling information board 200 of each dwelling unit. In addition, it is possible to control a call between the lobby interphone (not shown) and the housing information panel 200 of each dwelling unit, and electric lock / unlock (not shown).

When the fire detector 300 connected to the monitoring line L2 is activated and activated, the house information board 200 drives an alarm circuit built therein and outputs an alarm sound. The fire signal including the address assigned to itself is output to the alarm monitoring integrated panel 100 by interruption.
On the other hand, when the alarm monitoring integrated panel 100 receives this fire signal, it operates a built-in alarm circuit to output an alarm sound, and also activates a district sound device (not shown) to notify a neighboring residence of the occurrence of a fire. To do.

  Further, in this type of system, the housing information panel 200 of each dwelling unit is provided with a test repeater 400 at the entrance and connected to the remote tester 500, so that the fire detector 300 can be remotely tested. Yes.

Accordingly, the remote tester 500 is operated to output a test signal designating the address of the fire detector 300 to the fire detector 300 through the test relay 400, and the fire detector 300 whose contacts are closed based on the test signal. When the remote tester 500 receives the address, the remote tester 500 detects a voltage change of the sensor line L2, and determines that the operation of the fire sensor 500 is normal.
JP-A-9-91578 Japanese Patent No. 3273306

  By the way, in such a system, although the operation check test of a fire detector can be performed from the exterior of each dwelling unit, it is necessary to go to the entrance of each dwelling unit, and improvement is desired further.

  The present invention is proposed in order to solve such a problem, and even if the tester does not go to the outside of each dwelling unit, from the management room where the alarm monitoring integrated panel is installed, etc. The purpose of this paper is to propose a fire alarm system with a test function that enables remote operation of fire detectors.

  In order to achieve the above object, in claim 1, at least an alarm monitoring integrated panel derived from a transmission line for transmitting a control signal and a call signal, and a fire detector having a test communication function installed in a dwelling unit The alarm monitoring integrated panel is connected to the transmission line through the sensor line and is connected to the transmission line, and the alarm monitoring integrated board transmits at least a test signal with an address from the transmission line. A test circuit, and the housing information board comprises line connection switching means for connecting the transmission line to the sensor line when receiving the sensor line connection signal from the alarm monitoring integrated board through the transmission line. The alarm monitoring integrated board transmits a sensor line connection signal to the housing information board, and a fire detector having the test communication function is provided on the transmission line. After being continued, with the driving power supplied to the sensor line from the fire detector remote test circuit, an addressed test signal was sent to the fire detector to perform an operation test. It is characterized by.

  According to a second aspect of the present invention, the alarm monitoring integrated panel has a display unit for displaying information related to a housing information panel in the system, and the fire detector remote test circuit operates a test switch and the test switch every time the test switch is operated. And a test signal generating circuit section for calling a housing information board in the system and sending a test signal to the transmission line.

  According to a third aspect of the present invention, the fire detector remote test circuit automatically calls a house information board in the system in sequence by operating a test switch and the test switch, and sends a test signal to the transmission line. And a test signal generation circuit unit.

  The present invention has the following effects.

  According to claim 1, a sensor line connection signal is sent from the alarm monitoring integrated board to the housing information board to connect to the fire detector of the dwelling unit, and then a test signal is sent to the fire detector. Therefore, it is possible to conduct an operation check test of fire detectors in each dwelling unit from a manager room where an alarm monitoring integrated panel is installed.

  According to claim 2, each time the test switch is operated, the house information board in the system can be called and the operation check state of the fire detector of the dwelling unit can be displayed on the display unit. A quick operation confirmation test is possible.

  According to claim 3, if the test switch is operated, the housing information panels in the system can be called in sequence, and the operation check test of the fire detectors of each dwelling unit can be performed, so it is possible to test all at once in a time-sharing manner. Quick operation confirmation test.

  Embodiments of the present invention will be described below.

  FIG. 4 is a diagram showing an example of an external configuration of a fire alarm system having the test function of the present invention.

  In this fire alarm system, the transmission line L1 is derived from the alarm monitoring integrated panel 1, and the house information panel 2 of each dwelling unit is connected. The fire information 3 is connected to each house information panel 2 through the sensor line L2. Connected.

Here, the transmission line L1 is configured to include a signal L1a and a communication line L2b, which will be described later, but may be configured by a two-wire multiplex transmission line.
When a two-wire multiplex transmission line is used, the power supply and voice signal are superimposed and transmitted in addition to the calling signal, reply signal, test signal, and operation confirmation signal, so that the wiring facility can be simplified.

  FIG. 1 is a block diagram illustrating an example of an internal configuration of the alarm monitoring integrated board 1.

This alarm monitoring integrated board 1 includes a call switching circuit 11A, a call circuit 11 having a handset H, a multiplex transmission circuit 12, a voice output unit 13 having a speaker SP, an operation unit 14, a display unit 15, and a storage unit. 16 and a home information panel remote test circuit 17 having a test signal generation circuit unit 17A.
The call circuit 11 may be a hands-free device without a handset.

  The signal processing unit 10 has a function of controlling each unit in addition to monitoring the state of the house information board 2 by sending and receiving control signals including addresses to and from each house information board 2.

  A call line L1b for transmitting / receiving a call signal is derived from the call circuit 11, and a call path with the house information panel 2 is formed under the control of the call switching circuit 11A so that an interphone call is made. Yes.

  A signal line L1a is derived from the multiplex transmission circuit 12, and the transmission / reception of a call signal, a reply signal, a sensor line connection signal, a sensor line cutoff signal, a test signal, and an operation confirmation signal is multiplexed and transmitted through the signal line L1a. Perform by method.

  In addition, the drive power from the sensor circuit drive power supply 17C is sent through the signal line L1a in the processing described later.

  The operation unit 14 includes a mode selection switch 19 and can select normal mode or test mode.

  The fire detector remote test circuit 17 includes a test signal generation circuit unit 17A, a current change detection circuit unit 17B, a sensor circuit drive power supply 17C, and a test switch 18.

  The test signal generation circuit unit 17A sends a sensor line connection signal and a sensor line cut-off signal designating the address of the house information panel 2 by operating the test switch 18, and further, the address of the fire detector 3 of each dwelling unit. Send a test signal specifying.

  The current change detection circuit unit 17B detects a current change of the signal line L1a due to a short circuit of the sensor line L2, and detects normality or abnormality of the sensor line L2.

  The sensor line drive power supply unit 17C supplies drive power to the sensor line L2 through the house information board 2 that has received the sensor line connection signal.

  FIG. 2 is a block diagram showing an example of the internal configuration of the house information panel 2 used in this type of fire alarm system.

  A sensor line L2 is led out from the house information board 2, and a fire sensor 3 to which individual addresses are added is connected. Reference numeral 6 denotes a terminating resistor.

  The house information board 2 includes a control circuit 20, a call circuit 21 including a call switching circuit 21A, an alarm circuit 22, a microphone 23, a speaker SP, a memory 24 for storing the address of the house information board 2, and the like. Line connection switching means 25. Similar to the alarm monitoring integrated panel 1, the call circuit 25 may be a hands-free device without the handset H.

  A signal line L1a and a communication line L1b are connected to the control circuit 20, and a call signal, a reply signal, a sensor line connection signal, a sensor line cutoff signal, a test signal, and an operation confirmation signal are transmitted and received through the signal line L1a. Is performed by a multiplex transmission method.

  The alarm circuit 22 outputs an alarm when a security sensor (not shown) such as the fire detector 3, a gas leak sensor, or a security switch is triggered. The alarm includes at least an alarm sound and an alarm message.

The line connection switching means 25 has contacts 25a and 25a for switching the connection of the sensor line L2 to the signal line L1a side or the control circuit 20 side. In the normal mode described later, the contact b is closed, and the test mode described later. Then, the contact a is closed.
In the state where the contact 25a is closed, the sensor line L2 is connected to the control circuit 20 side, and a short circuit of the sensor line L2 is detected.

  On the other hand, when the contact a is closed, the sensor line L2 is connected to the signal line L1a side, the driving power is sent from the alarm monitoring integrated panel 1 to the fire detector 3 through the signal line L1a, and the test signal is sent out. The

  FIG. 3 is a diagram showing an example of the internal configuration of the fire detector 3 used in this fire alarm system.

The fire detector 3 has a communication test function, and is assigned an address that does not overlap in the system.
Each of the fire detectors 3 has a control processing unit 30 and a contact 31a, and generates a fire signal by closing the contact 31a and short-circuiting the detector line L2 when a fire factor is detected or a test signal is received. A fire notification unit 31 and a signal transmission unit 32 for receiving a test signal sent from the alarm monitoring integrated board 1 through the sensor line L2 are provided.

  The alarm monitoring integrated board 1 transmits and receives control signals to and from the respective house information boards 2 through the signal line L1a, and performs telephone calls and monitoring control necessary for the system.

  In the monitoring control, when the fire detector 3 is triggered, the sensor line L2 is short-circuited. Therefore, this state is detected by the housing information panel 2, the alarm circuit 22 is activated and an alarm is output, and the fire detection that has been triggered is detected. A fire signal including the address of the device 3 is sent to the alarm monitoring integrated panel 1 by interruption. On the other hand, the alarm monitoring integrated board 1 receives this and outputs a warning sound or warning message prepared in advance on the display unit 15 or displays a house where a fire has occurred.

  Moreover, in such a system of the present invention, by operating the alarm monitoring integrated panel 1, the address of the house information board 2 and the fire detector 3 connected to the house information board 2 is designated, and the fire detector 3 is remotely controlled. A test can be performed (test mode).

  This will be described with reference to the flowchart of FIG.

  In the alarm monitoring integrated board 1, the mode selection switch 19 is operated to select the test mode (100).

  After selecting this test mode, when the housing information board 2 of the dwelling unit to be tested is designated and the test switch 18 is operated, the signal processing unit 10 of the alarm monitoring integrated board 1 includes the address of the house information board 2 If a call signal is sent but there is no response even if the call is made, the call is performed again, and after a predetermined number of times set in advance, if there is no response, the mode returns to the normal mode (101, 102).

  When a response signal is received from the called house information board 2 within a predetermined time (103), a sensor line connection signal is sent to the house information board 2 (105). On the other hand, if there is no response signal within a predetermined time after calling the house information board 2, the house information board 2 is skipped and the next house information board is called (104).

  Thereafter, the housing information board 2 that has received the sensor line connection signal drives the line connection switching means 25 to close the contact 25a, and connects to the alarm monitoring integrated board 1 through the signal line L1a. A transmission line is formed (105).

  Next, the alarm monitoring integrated panel 1 starts supplying the driving power to the fire detector 2 and sends a test signal designating the address of the fire detector 3, so that the corresponding signal transmission unit of the fire detector 3 is transmitted. When 32 receives this, the control processing unit 30 closes the contact 31a for a predetermined time to short-circuit the sensor line L2, and the current flowing through the sensor line L2 changes.

  This current change is detected by the current change detection circuit 17B of the alarm monitoring integrated panel 1 as an operation confirmation signal (107), and a message based on this is displayed on the display unit 15 (see FIG. 6).

  FIG. 6 is a diagram illustrating an example of a display mode of the result information of the remote test.

  The alarm monitoring integrated panel 1 is provided with a table in which the address of the fire detector 3 is stored in correspondence with the dwelling unit floor, dwelling unit number, etc., so when the operation confirmation signal is received from the fire detector 3, Based on the address, as shown in the figure, the dwelling unit floor, dwelling unit number, sensor address, and normality are displayed.

  Whether the operation is normal or abnormal can be confirmed by receiving an operation confirmation signal within a predetermined time (107 to 110).

  Next, when the operation test is completed, a sensor line cut-off signal is sent from each alarm monitoring integrated board 1 to each house information board 2, and the house information board 2 receiving this activates the line connection switching means 25. Then, the contact 25A is closed b, and the connection between the sensor line L2 and the alarm monitoring integrated panel 1 is cut off (111).

  Thereafter, the alarm monitoring integrated panel 1 stops the power supply to the fire detector 3.

  The remote test of FIG. 5 can be implemented in various modes by control software prepared in the alarm monitoring integrated panel 1.

  After selecting the test mode, if the test switch 18 is pressed, the house information panels prepared in advance as test objects are sequentially called, and the test signal is automatically transmitted to the responding one, and the operation confirmation signal Can be confirmed sequentially (Claim 2). In this case, it is possible to perform a mode in which those that do not respond are recalled a predetermined number of times, and those that do not respond even if a predetermined number of recalls are skipped are skipped. Thereby, the operation test of the fire detectors of all the dwelling units can be performed only by operating the test switch 18 once, and the burden on the tester is reduced.

  Also, every time this test switch is operated, the housing information board in the system is called out to send a test signal, and after confirming the operation, the next house information board is called up to send a test signal to check the operation. (Claim 3).

The block diagram which shows an example of the basic composition of the alarm monitoring integrated board used with this invention system The block diagram which shows an example of the basic composition of the housing information board used by this invention system The block diagram which shows an example of the basic composition of the fire detector used by this invention The figure which shows an example of the basic composition of this invention system Flow chart showing the test mode of the system of the present invention The figure which shows an example of the display mode of the result information of a remote test The figure which shows the structure of the fire alarm system with the conventional test function

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Alarm monitoring integrated board 2 Housing information board 3 Fire detector 17 Fire detector remote test circuit 17A Test signal generation circuit part 17B Current change detection circuit part 17C Sensor line drive power supply 18 Test switch 20 Control circuit 21 Line connection switching means L1 Transmission line L2 sensor line

Claims (3)

At least the alarm monitoring integrated panel that has derived the transmission line for transmitting the control signal and call signal, and the fire detector equipped with the test communication function installed in the dwelling unit are connected through the sensor line, and on the transmission line. It consists of a housing information board connected to
The alarm monitoring integrated board
A fire detector remote test circuit for sending at least a test signal with an address from the transmission line,
The above housing information board
When the sensor line connection signal is received from the alarm monitoring integrated board through the transmission line, the line connection switching means for connecting the transmission line to the sensor line is provided.
The alarm monitoring integrated board transmits a sensor line connection signal to the housing information board, and after the fire detector having the test communication function is connected to the transmission line, the fire detector remote test circuit A fire alarm system having a test function characterized in that an operation test is performed by sending a test signal specifying an address to the fire sensor while driving power is supplied to the sensor line. . In claim 1,
The alarm monitoring integrated panel has a display unit for displaying information on the housing information panel in the system,
The fire detector remote test circuit includes a test switch and a test signal generation circuit unit that calls a housing information board in the system and sends a test signal to the transmission line each time the test switch is operated. A fire alarm system with a test function. In claim 1,
The fire detector remote test circuit includes a test switch and a test signal generation circuit unit that operates the test switch to automatically call a house information panel in the system in order and send a test signal to the transmission line. A fire alarm system equipped with a test function.

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