SYSTEM, DEVICE AND METHOD FOR WIRELESS SECURITY ALARM

摘要

A system, device and a method for wireless security alarm are provided to solve the alarm missing problem caused by the co-channel interference and the adjacent-channel interference which exists in the prior wireless security alarm system working at a single frequency band. The wireless security alarm system includes: a front-end wireless transmission unit which is used for sending multiple alarm signals indicating the same alarm information when an alarm situation happens, wherein the multiple alarm signals are at different frequency bands; and a wireless receiving unit which is used for receiving the alarm signals from the front-end wireless transmission unit and performing corresponding alarm situation processing according to the alarm signals. The front-end wireless transmission unit communicates with the wireless receiving unit at multiple frequency bands. When the co-channel interference or the adjacent-channel interference exists in one frequency band, normal communication can still be kept at the other frequency bands. The device includes the wireless transmission device and the wireless receiving device. The method for wireless security alarm is based on the wireless security alarm system.