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Fire alarm system and address coding method thereof

A fire alarm system and address coding technology, applied in the field of fire alarm system and its address coding, can solve the problems of slow alarm information, many steps, and difficult to modify, so as to reduce debugging steps, speed and corresponding time. Effect

Inactive Publication Date: 2018-12-18
湖北旭兴达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing installation and debugging method has many steps, and it is not easy to modify after addressing errors. In the case of many alarms, the speed of the controller to receive alarm information is slow.

Method used

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  • Fire alarm system and address coding method thereof
  • Fire alarm system and address coding method thereof
  • Fire alarm system and address coding method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 Shown, a kind of fire alarm address coding method of the present invention, it comprises the following steps:

[0035] S101. Wiring according to the layout drawing, and installing the fire alarm controller and the base of each bus equipment;

[0036] S102. Install addressing equipment on the base of the bus equipment, divide the addressing units in each bus loop into 1-64 groups, use the addressing equipment to address the addressing units on the bus in sequence, and address each group of addressing units The devices within the group are addressed within the group;

[0037] S103. The alarm controller sends the inspection command including the inspection feature code to the addressing unit by broadcasting through the bus;

[0038] S104. If the addressing unit does not issue an alarm, no response is made; if the addressing unit generates an alarm, the address code of the encoding unit is included in the self-response information returned by the addressi...

Embodiment 2

[0053] On the basis of Embodiment 1, S103 and S104 in a fire alarm address coding method can also be:

[0054] S103, the alarm controller sends the inspection command including the inspection feature code and the address code to the addressing unit by broadcasting through the bus;

[0055] S104. When the address code included in the inspection command received by a certain addressing unit matches its own address code, the addressing unit returns its own response information to the alarm controller;

[0056] In this example, by changing the contents of S103 and S104, the real-time status of each addressing unit can be known more accurately, and the rest of the steps are the same as those in Embodiment 1, and will not be redundant here.

Embodiment 3

[0058] On the basis of Embodiment 1 or Embodiment 2, the address coding of the fire detector in the addressing unit can also be coded by means of binary coding, and the IP address of the fire detector is a 32-bit binary address, for example, 11000000.10101000. 00101110.01001111, often using the dotted decimal method, for example: 192.168.46.79, the corresponding mask to the IP address is a 32-bit address, when the mask and the IP address are subjected to a bit-by-bit "logical AND" operation, the IP can be obtained The network ID of the address. When an alarm occurs, the addressing unit sends the network address of the fire detector that sent the alarm information to the fire alarm controller.

[0059] When the alarm controller receives a 31-byte data message or a 32-byte binary address, it adopts the address resolution protocol ARP to perform address resolution, wherein the resolution method includes the following steps:

[0060] S201. The alarm controller sends an ARP reques...

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Abstract

The present invention provides a fire alarm system and an address coding method thereof. The method comprises the following steps: setting a broadcast mode, and sending patrol orders to all addressingunits regularly, wherein the addressing units without alarm information do not response to the broadcast information sent by an alarm controller, and only the addressing unit(s) generating the alarmsignal(s) respond to the broadcast information; and sending address code(s) of the addressing unit(s). A full duplex communication mode is adopted between the addressing units and the alarm, the alarmcontroller sends the patrol orders regularly, if a fire breaks out during the sending period of two patrol orders, the addressing unit(s) in the area can actively send the address code(s) of the addressing unit(s) to the alarm controller, the communication mode can reduce the response time of the fire alarm, and the speed of receiving the alarm information of the alarm controller is faster. According to the whole system, an addressing device is adopted to address the addressing units on a bus, so that the error rate of the address coding is reduced, and the system debugging procedures are reduced.

Description

technical field [0001] The invention relates to the field of fire alarm, in particular to a fire alarm system and an address coding method thereof. Background technique [0002] At present, the most used alarm system adopts the bus-type automatic fire alarm system. This type of automatic alarm system is controlled by a microprocessor. The wire system generally includes two-wire system, three-wire system and four-wire system. The bus and the controller implement signal transmission. The alarm form of the detector is a switch value, and its sensitivity is determined by the hardware when it is manufactured and cannot be adjusted. This type of system can be programmed on site, and implement more complex control of each linkage device through various modules. This kind of system not only has dual functions of alarm and control, but also is convenient for construction and installation, and the price is low. The installation and commissioning method of the bus-type automatic fir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B17/06G08B17/10G08B25/00
CPCG08B17/06G08B17/10G08B25/003
Inventor 张明龚名
Owner 湖北旭兴达科技有限公司