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Development of automatic fire alarm system towards intelligent wireless

网责任编辑:巡鹰安防 作者:巡鹰安防 人气: - Article Source: Tour Eagle Security Network Editor: Tour Eagle Security Author: Tour Eagle Security Popularity: -

At present, the automatic fire detection and alarm system is widely used and has played a supporting role. 只对某一种火灾参数进行探测,出现误报漏报等诸多问题。 However, in the practical application of the fire detection and alarm system, many problems have also occurred. The quality of existing products in the market is uneven, there is a single product function, and the reliability and stability are not high ; only detecting a certain type of fire parameters, errors occur. Many issues such as false negatives. With the continuous development of microprocessor technology, sensing technology, communication technology, control technology and artificial intelligence technology, the main development directions of fire detection and alarm systems are toward high reliability, low false alarm rate and network and intelligence. development of. Intelligent wireless fire alarm system is the main research direction.

,一般由火灾探测器、区域报警器和集中报警器组成;也可以根据工程的要求同各种灭火设施和通讯装置联动,以形成中心控制系统。 Fire alarm system is generally composed of fire detector, area alarm and centralized alarm ; it can also be linked with various fire extinguishing facilities and communication devices according to the requirements of the project to form a central control system. That is, a complete fire control system is composed of automatic alarm, automatic fire extinguishing, evacuation induction, system process display, and fire file management.

Trigger device


In the automatic fire alarm system, devices that automatically or manually generate a fire alarm signal are called triggers, which mainly include fire detectors and manual fire alarm buttons. A fire detector is a device that can respond to fire parameters (such as smoke, temperature, flame radiation, gas concentration, etc.) and automatically generate a fire alarm signal. According to the different fire response parameters, fire detectors are divided into five basic types: thermal fire detectors, smoke fire detectors, photosensitive fire detectors, combustible gas detectors, and composite fire detectors. Different types of fire detectors are suitable for different types of fires and different places. The manual fire alarm button is a device that manually generates a fire alarm signal and starts an automatic fire alarm system, and is also an indispensable part of the automatic fire alarm system.


Fire alarm


In an automatic fire alarm system, a control instruction device used to receive, display, and transmit fire alarm signals, and can issue control signals and other auxiliary functions is called a fire alarm device. The fire alarm controller is one of the basic ones. The fire alarm controller is responsible for providing a stable working power supply for the fire detector; monitoring the working state of the detector and the system itself; receiving, converting, and processing the alarm signals output by the fire detector; performing audible and visual alarms; indicating the specific parts of the alarm and Time; simultaneously perform many tasks such as corresponding auxiliary control. It is a core component of a fire alarm system.


In the fire alarm device, there are some alarm devices with incomplete functions such as interrupters, area displays, and fire display panels, which can be regarded as the evolution or supplement of the fire alarm controller. Under specific conditions, it belongs to the same fire alarm device as the fire alarm controller.


The basic functions of the fire alarm controller are: automatic conversion of main power and backup power, backup power supply charging function, power failure monitoring function, power supply status indicator function, power supply for the detector loop, sound or light alarm of the controller or system failure , Fire sound, light alarm, fire alarm memory function, clock unit function, fire alarm priority reporting function, sound alarm sound mute and re-audible alarm function.


Fire alarm


In the automatic fire alarm system, the device used to emit a fire alarm signal different from ambient sound and light is called a fire alarm device. It sends out sound and light sounds to the alarm area to warn people to take evacuation, fire fighting and disaster relief measures.


Fire control equipment


In an automatic fire alarm system, after receiving a fire alarm, a device that can automatically or manually start the relevant fire fighting equipment and display its status is called a fire control equipment. Mainly include fire alarm controller, control device of automatic fire extinguishing system, control device of indoor fire hydrant system, control device of smoke and smoke exhaust system and air conditioning ventilation system, normally open fire door, fire shutter control device, elevator return control Devices, as well as some or all of the control devices such as fire emergency broadcasting, fire alarm devices, fire communication equipment, and control devices for fire emergency lighting and evacuation instructions. Fire control equipment is generally installed in the fire control center to facilitate centralized and unified control. There are also some fire control equipment installed at the site where the fire control equipment is located, but the action signal is returned to the fire control room, and a centralized and decentralized control method is implemented.


power supply


The automatic fire alarm system is a fire-fighting electrical equipment. Its main power source should be a fire-fighting power source, and its backup power should be a battery. In addition to powering the fire alarm controller, the system power supply also provides power to the fire control equipment related to the system.

power supply

The automatic fire alarm system is a fire-fighting electrical equipment. Its main power source should be a fire-fighting power source, and its backup power should be a battery. In addition to powering the fire alarm controller, the system power supply also provides power to the fire control equipment related to the system.

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火灾报警器|火灾报警器系统|烟雾报警器 Keywords in this article: Fire alarm | Fire alarm system | Smoke alarm