JP2000132778A - Automatic fire alarm device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic fire alarm device which improves address set work efficiency. SOLUTION: This automatic fire alarm device which sequentially accesses plural detectors Bn that can set an inherent detector address from a fire receiver A through a transmission line L and specifies and signals the fire place when any of the detectors Bn sends an audible signal comprises the fire receiver A provided with a test operating part A4, a communication control circuit A2, an address setting/storing means A3 and a central operating part A1 and of a detector Bn provided with a communication control circuit Bnb, a fire detecting part Bnc, an address storing means Bnd, a signal processing circuit Bna, a pseudo-audible signal sending means Bne and a pseudo-audible signal returning means Bnf, performs detector inherent address transmission from the receiver A wherever the detector Bn is attached to a detector base when execution of work is performed and a detector inherent address is sequentially set to the detector Bn.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic fire alarm system of a polling system for sequentially informing a fire place by sequentially accessing sensors through a transmission line.

[0002]

2. Description of the Related Art Conventionally, in a sensor of this kind of automatic fire alarm device as shown in FIG. 5, an address setting switch (generally, a dip switch or the like) is provided for each sensor S or sensor base SB. Is used.), And it is necessary to sequentially set the dip switches of the respective sensors S to unique addresses when the automatic fire alarm device is installed.

[0003]

However, the number of installed sensors is extremely large, and address setting is manually performed for each of the sensors. In addition, since this address setting is performed by turning on and off the dip switch according to the binary number while converting the decimal address into a binary number, an address setting error such as duplication or omission of the address occurs. As well as
Once the sensor is installed, it is often difficult to confirm or change the address depending on the installation location (usually installed on a ceiling or the like). Therefore, there is a problem in that setting all the sensors at the predetermined addresses requires a lot of work.

The present invention has been made to solve the above problems, and has as its object to attach a sensor to a sensor base instead of setting a sensor address on the sensor side. An excellent automatic fire alarm device which sets the unique sensor address transmitted from the fire receiving device side sequentially to the sensor every time, thereby eliminating the trouble of address setting and causing no mistake in address setting. Is to provide.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention proposes a monitoring mode for monitoring the alert status of the sensor, and an address for setting a unique address of the sensor. A test operation unit for switching between setting modes, a communication control circuit connected to the transmission line for transmitting / receiving a multiplex signal to / from the sensor, and an address for setting and storing and holding a predetermined address of the sensor By operating the setting / storage means and the test operation unit, in the monitoring mode, a multiplexed signal is transmitted and received between the sensor and the sensor through the communication control circuit to perform signal processing necessary for alarm notification. In the address setting mode, each time a pseudo alarm signal is received from the sensor, a predetermined sensing address stored in the address setting / storage means is transmitted to the communication control unit. A fire receiving device having a central processing unit for sequentially outputting the signal through a circuit; a communication control circuit connected to the transmission line for transmitting / receiving a multiplex signal to / from the fire receiving device; and a fire detecting a fire. A detection unit, address storage means for storing a sensor address output from the fire receiving device, and, when the fire receiving device is in the monitoring mode, an alarm notification between the fire receiving device and the fire receiving device via the previous communication control circuit. A signal processing circuit which performs necessary signal processing and receives a sensor address transmitted from the fire receiving device side and stores it in the address storage means only when a signal is output from the pseudo alarm means in the address setting mode. A pseudo alarm means for sending a pseudo alarm signal to the signal processing circuit at the same time that the sensor is attached to the sensor base; and the address storage means has a unique Characterized by comprising a pseudo-onset paper returning means allowed to exit the delivery of the pseudo alarm signal from the pseudo-alarm means in response to an instruction from completing at the same time the signal processing circuit writes the dress, the.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of an automatic fire alarm according to the present invention will be described below in detail with reference to FIGS. 1, 2, 3 and 4. FIG.

FIG. 1 shows a system configuration of the present invention. In the figure, A is a fire receiving device, Bn is a sensor, and these are connected by a transmission line (multiplex signal line) L. ing.

[0008] The fire receiving device A is provided with respective sensors Bn.
A test operation unit A4 for switching between a monitoring mode for monitoring the alarm status of the sensor and an address setting mode for setting a unique address of each of the detectors Bn;
A communication control circuit A2 connected to the sensor for transmitting / receiving a multiplex signal to / from the sensor; an address setting / storage means A3 for setting and storing a predetermined address of each of the sensors Bn; By operating the operation unit A4, in the monitoring mode, the communication control circuit A2
The multiplex signal is transmitted / received to / from each of the sensors Bn to perform signal processing required for alarm notification, and in the address setting mode, each time a pseudo alarm signal from each of the sensors Bn is received. The address setting / storage means A
And a central processing unit A1 for sequentially outputting a predetermined sensing address stored and held in the communication control circuit A2 through the communication control circuit A2, and a fire receiving device A connected to the transmission line L. Communication control circuit Bnb for transmitting and receiving multiplex signals between the two, and a fire detection unit Bnc for detecting a fire
Address storage means Bnd which is connected to the transmission line L and stores a sensor address output from the fire receiving device A; and, when the fire receiving device A is in the monitoring mode, the communication control circuit Bnb. Signal processing necessary for alarm notification is performed with the fire receiving device A. In the address setting mode, the sensor address transmitted from the fire receiving device A is only transmitted when a signal is output from the pseudo alarming means Bne. A signal processing circuit Bna for receiving and storing in the address storage means Bnd, a pseudo alarm means Bne for sending the pseudo alarm signal to the signal processing circuit Bna at the same time that the sensor is attached to the sensor base; At the same time when the storage unit Bnd finishes writing the unique address, the pseudo-report signal from the pseudo-report unit is issued by an instruction from the signal processing circuit. And a pseudo onset paper returning unit Bnf which allowed to exit the exit, and a sensor Bn equipped with.

The operation of this system will be described with reference to the time chart of FIG. First, at the time of installation of the system, it is necessary to set a unique address for each sensor Bn, so the test operation unit A4 of the fire receiving device A is switched to the address setting mode. After setting the address setting mode, the address setting / storage means A3 inputs and stores the address of the sensor Bn whose address is to be set. In this state, the sensor Bn for setting the address
4 is turned on as shown in FIG. 4 and attached to the detector base to generate a false alarm equivalent to the alarm signal from the fire detector Bnc.
As shown in (a), the signal is sent to the fire receiving apparatus A via the transmission line L, and the fire receiving apparatus A converts this alarm signal through the communication control circuit A2 into the central processing unit A1 as shown in FIG. And outputs a sensor address stored in the address setting / storage means A3 to the transmission line L through the communication control circuit A2, as shown in FIG. 2D. On the side of the sensor Bn, only the sensor that has generated a false alarm captures the sensor address transmitted via the transmission line L into the signal processing circuit Bna through the communication control circuit Bnb.
This address is stored in the address storage means Bnd as shown in FIG. When this address reading is completed,
As shown in FIG. 2 (f), the pseudo alarming means Bne stops the pseudo alarming by the pseudo alarm returning means Bnf via the signal processing circuit Bna. The embodiment of the false alarm means of the present invention is not limited to a mechanical on / off switch as shown in FIG. 4, but may be optically operated when the sensor Bn is attached to the sensor base. Combined light emission
Electric means for transmitting a signal equivalent to the alarm signal from the fire detection unit Bnc to the signal circuit Bna by a light receiving element or the like may be used. This series of operations is summarized in a flowchart in FIG.

In this manner, on the fire receiving apparatus A side, the detector address is sequentially set by the address setting / storage means A3, and the set detector address is attached to the detector base, and the false alarm is sent to the detector Bn. When the addresses are set to all the sensors Bn, the addresses are sequentially transmitted and stored.
Since the automatic fire alarm device is in a monitorable state, the test operation unit A4 of the fire receiving device A is switched to the monitoring mode. In this monitoring mode, the central processing unit A1 multiplexes the multiplexed signal with the sensor address stored in the address setting / storage means A3 in the communication control circuit A2.
The polling access is performed by transmitting the signal to the sensor Bn through the sensor Bn. When the multiplexed signal with the sensor address stored in the address storage means Bnd is transmitted to the sensor Bn, the current fire detector Bnc is transmitted. A reply is sent with a multiplexed signal with an address attached to the monitoring state. Then, when a fire is detected and fired by the fire detection unit Bnc of any of the sensors Bn, the alarm signal is transmitted to the signal processing circuit Bna,
The signal processing circuit Bna attaches the sensor address stored in the address storage means Bnd to the alarm signal and outputs the signal to the transmission line L via the communication control circuit Bna. Then, the fire receiving apparatus A side inputs the multiplexed signal with the sensor address transmitted through the transmission line L to the central processing unit A1 through the communication control circuit A2, and the central processing unit A1 sets the address. Reference is made to the sensor address stored in the storage means A3, and when the address is stored, an alarm is issued in accordance with the sensor address and necessary control processing is performed.

Therefore, in the automatic fire alarm device of the present invention,
When the automatic fire alarm device is installed, the address of each sensor Bn is sequentially set every time all the sensors Bn are attached to a predetermined place. In the case where there is little error and the set detector address is changed, it is possible to easily perform the setting by inputting the setting on the fire receiving device A side and alerting the detector to be changed. There is a

It is possible to easily cope with the change of the stem.

According to the automatic fire alarm device of the present invention, as long as the sensor is provided and the transmission line is attached to the sensor base correctly wired according to the construction drawing, it is not necessary to set the address of each sensor. The fire receiver sets the sensor address, transmits the set sensor address to the sensor sequentially, and stores the settings.The addresses are automatically assigned correctly, and errors such as missing or duplicated addresses are set. In addition to the above, it is possible to provide an automatic fire alarm device that can simplify the construction because the trouble of setting the address can be omitted.

[Brief description of the drawings]

FIG. 1 is a system block diagram showing an embodiment of an automatic fire alarm device according to the present invention.

FIG. 2 is a main part time chart for explaining the operation of one embodiment of the automatic fire alarm device according to the present invention.

FIG. 3 is a main part flowchart for explaining the operation of an embodiment of the automatic fire alarm device according to the present invention.

FIG. 4 is an embodiment of a pseudo alarm means of the automatic fire alarm device according to the present invention.

FIG. 5 is a system diagram of an embodiment of a conventional automatic fire alarm device.

[Explanation of symbols]

A Fire receiving device A1 Central processing unit A2 Communication control circuit A3 Address setting / storage unit A4 Test operation unit Bn Detector (where n is an integer of 1, 2, ...) Bna Signal processing circuit (where n is 1) Bnb Communication control circuit (where n is an integer of 1, 2,...) Bnc Fire detector (where n is an integer of 1, 2,...) Bnd address Storage means (where n is 1, 2, ...
Bne pseudo-reporting means (where n is an integer of 1, 2,...) Bnf pseudo-reporting return means (where n is 1, 2,...)
L transmission line

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[Procedure amendment]

[Submission date] February 5, 1999 (1999.2.5)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction contents]

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention proposes a monitoring mode for monitoring the alert status of the sensor, and an address for setting a unique address of the sensor. A test operation unit for switching between setting modes, a communication control circuit connected to the transmission line for transmitting / receiving a multiplex signal to / from the sensor, and an address for setting and storing and holding a predetermined address of the sensor By operating the setting / storage means and the test operation unit, in the monitoring mode, a multiplexed signal is transmitted and received between the sensor and the sensor through the communication control circuit to perform signal processing necessary for alarm notification. In the address setting mode, each time a pseudo alarm signal from the sensor is received, a predetermined sensor stored in the address setting / storage means is held .
A central processing unit that sequentially outputs an address through the communication control circuit; and a fire receiving device including: a communication control circuit that is connected to the transmission line and transmits and receives a multiplex signal to and from the fire receiving device; A fire detection unit that performs fire detection,
Address storage means for storing a sensor address output from the fire receiving device; and signal processing necessary for alarm notification between the fire receiving device and the fire receiving device via the previous communication control circuit when the fire receiving device is in the monitoring mode. In the address setting mode, a signal processing circuit which receives a sensor address transmitted from the fire receiving device side and stores it in the address storage means only when a signal is output from the false alarm means, Pseudo-alarm means for sending a pseudo-alarm signal at the same time that the sensor is attached to the sensor base to the processing circuit, and the pseudo-alarm means by the instruction from the signal processing circuit at the same time that the address storage means finishes writing the unique address. Pseudo alarm return means for terminating the transmission of the pseudo alarm signal from the alarm means.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction contents]

Therefore, in the automatic fire alarm device of the present invention,
When the automatic fire alarm device is installed, the address of each sensor Bn is sequentially set every time all the sensors Bn are attached to a predetermined place. In the case where there is little error and the set detector address is changed, it is possible to easily perform the setting by inputting the setting on the fire receiving device A side and alerting the detector to be changed. Therefore, the workability is improved and the system can be easily changed.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction contents]

[0012]

According to the automatic fire alarm system of the present invention, sensitive
As long as the sensor is attached to the sensor base correctly wired according to the construction drawing, the fire receiver sets the sensor address without setting the address of the sensor one by one, and the set sensor address is used as the sensor. The automatic fire alarm system automatically transmits addresses to the side and stores the settings, automatically assigning addresses correctly, preventing errors such as omissions and duplication of addresses, and simplifies construction by eliminating the need for address setting. Is provided.

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Claims (1)

[Claims] 1. A fire receiving device sequentially accesses a plurality of sensors capable of setting a unique sensor address via a transmission line, and when any one of the sensors issues an alarm, the fire receiving device sends a sensor address to the fire receiving device. An automatic fire alarm device for transmitting an alarm signal based on a multiplexed signal from the sensor to specify a fire location, wherein a monitoring mode for monitoring the alarm state of the sensor is provided. A test operation unit for switching between an address setting mode for setting an address, a communication control circuit connected to the transmission line for transmitting / receiving a multiplex signal to / from the sensor, and a predetermined address of the sensor. Address setting / storage means for setting and storing, and operating the test operation unit to communicate with the sensor through the communication control circuit in the monitoring mode. The multiplex signal is transmitted and received to perform signal processing necessary for alarm notification. In the address setting mode, each time a pseudo alarm signal is received from the sensor, a predetermined signal stored in the address setting / storage means is held. A central processing unit for sequentially outputting a sensing address through the communication control circuit; and a communication control circuit connected to the transmission line for transmitting and receiving a multiplex signal to and from the fire reception device. A fire detection unit that performs fire detection, address storage means that stores a sensor address output from the fire reception device, and the fire reception device via the communication control circuit when the fire reception device is in the monitoring mode. During the address setting mode, the signal is transmitted from the fire receiving device side only when a signal is issued from the false alarming means. A signal processing circuit for receiving a sensor address and storing it in the address storage means; a pseudo alarm means for continuously sending a pseudo alarm signal to the signal processing circuit while the sensor is attached to the sensor base; A pseudo-reporting return unit for terminating the transmission of the pseudo-reporting signal from the pseudo-reporting unit by a signal from the signal processing circuit at the same time that the address storage unit finishes writing the unique address. An automatic fire alarm device characterized by being made.