How to solve the problem of burglar alarm ringing by itself

At present, there are many reasons for false alarm and omission in anti-theft alarm system.

1, the anti-jamming ability of wireless detector is that co-frequency interference is easy to cause false alarm and missing report.

2. The infrared detector's judgment of intrusion behavior is not accurate enough, which leads to false alarm and false alarm. Infrared detectors are easily affected by environmental factors such as temperature and light, resulting in false alarms.

3. The power supply system of the wireless detector is short of electricity, and the information cannot be effectively transmitted when the power is low, which shortens the detection distance of the detector or makes it unable to work, resulting in false alarm.

4. Because both the host and the detector are set by wireless codes, the duplicate codes of the host and the detector lead to false positives.

Solution:

1. From the aspect of civil air defense, it is essential to reduce false positives. The establishment of alarm information confirmation mechanism can reduce the number of alarms. After receiving the alarm information, the alarm center should first send a confirmation signal to the alarm host, indicating that the center has received it, and the alarm host should resend it if it has not received the confirmation signal.

2. Technically, various means are used to confirm the alarm signal, such as installing multiple detectors (generally using dual infrared+infrared plus microwave), and when multiple detectors detect the intrusion signal at the same time, the alarm signal is sent to the host computer to reduce the false alarm rate.