Design of security system for smart residential neighborhood

This paper designs a Neighborhood Security System based on the ZigBee technology. Composed of user nodes, routers and central nodes, the entire system constitutes a wireless network with safe reliability and stable performance. The user node is primarily made up of the JN5139 module, together with various circuits like infrared detection, gas leakage alarm, emergency button and sound-light alarm. The management center of the residential neighborhood has real -time acess to the detection of the operating status and relevant alarm information of the household security system. The system features simple circuit design, reliable operation and better cost-efficiency, promising a wide application in the construction of neighborhood security systems.