Alarm detector detailed classification introduction

The small series of this article explains the detailed classification of alarm detectors from the aspects of principle, mode and scope.

1, principle classification

Mainly can be divided into infrared alarm detector, microwave alarm detector, passive infrared / microwave alarm detector, glass broken alarm detector, vibration alarm detector, ultrasonic alarm detector, laser alarm detector, magnetic switch alarm detector, Switch alarm detectors, video motion detection alarms, sound detectors and many other types. Such as AD920C, HW-01G

2, mode classification

Can be divided into active alarm detectors and passive alarm detectors.

3. Scope classification

It can be divided into point control alarm detector, line control alarm detector, surface control alarm detector and space protection alarm detector.

In addition to the above distinctions, there are other ways of dividing. In practical applications, depending on the usage, it is reasonable to select different types of alarm detectors to meet different security requirements.

The alarm detector is used as a sensing detection device to detect intruder's intrusion behavior and various abnormal conditions. There are many places where security is required in a variety of smart buildings and ordinary buildings. These locations also have a variety of safety precautions and requirements based on actual conditions. Therefore, a variety of alarm detectors are needed to meet different safety precautions.

According to the actual site environment and the user's safety precautions, reasonable selection and installation of various alarm detectors can better achieve the purpose of safety precautions. When the selection and installation of the alarm detector is not suitable, there may be a loophole for security precautions, failing to achieve the rigor of security precautions, causing the intruder to take advantage of the opportunity, thus causing undue losses to the security precautions.

The alarm detector is required to have anti-demolition and anti-destruction functions. When the alarm detector is damaged, artificially short-circuit or open the transmission line, and illegally attempt to open its protective cover, it should be able to generate an alarm signal output; in addition, the alarm detector should also have certain anti-interference measures to prevent various errors. The occurrence of the phenomenon, such as: anti-pet and small animal harassment, anti-false report interference caused by changes in environmental conditions.

The sensitivity and reliability of the alarm detectors are mutually influential. Reasonable selection of the detection sensitivity of the alarm detector and the use of different measures against external interference can improve the performance of the alarm detector. The use of different anti-jamming measures determines the performance of the alarm detector in different environments. Understand the performance and characteristics of various alarm detectors. According to different usage environments, it is a key link of the anti-theft alarm system to properly configure different alarm detectors.

4, wired and wireless

Can be divided into wired detectors, such as AD9202D infrared detector, AD9202c, YL007 wireless infrared detector.

5, distance classification

Can be divided into high-power detectors and ordinary detectors. For example, the AD608-03 signal transmission distance can reach 1000 meters, while the AD9202C wireless signal transmission distance is 100 meters.