At present, there are several reasons for the false alarms in the alarm system: the poor anti-interference ability of wireless detectors is manifested as the same frequency interference is easy to cause false alarms; the infrared detectors are not accurate enough to judge the intrusion behavior, which causes false alarms; infrared detectors are vulnerable to False alarms are caused by environmental factors such as temperature and light.

Because both the host and the detector use wireless coding to set the code, there is duplication, which causes the host and the detector to repeat the code, resulting in false alarms; some alarms are of poor quality, such as component damage and poor production technology, resulting in false alarms; The selected equipment, installation method, angle, position, etc. are also relevant; there are also human factors under the influence of the environment such as air flow, pet movement, etc., and human factors include improper user operation, accidental triggering of alarms, and accidental intrusion 、 Mistakenly entering the fortified visiting area will cause false alarms.