基于单片机无线控制的多功能打铃仪设计

Design of Multifunctional Electrical Bell Based on the Single Chip Microcomputer Wireless Control

提出一种基于GPS授时与无线通信控制的新型智能电铃控制仪，打铃仪与主机之间使用433M的无线双工通信，主机实时比对作息时间表，控制电铃动作，且能根据季节变化，自动切换夏、冬季作息时间。控制器采用液晶交互界面，具有良好的人机交互接口，操作简单。分布在不同楼字的打铃仪还具有盗险传感器的中继接口，在不同频道监测传感器数据，并根据不同的紧急情况发出不同的告警铃声。样机试运行效果良好，具有精度高、免调试等特点，可广泛应用于学校、厂矿企业等场合。

This paper proposes a new intelligent electrical bell based on GPS clock and wireless commumcation control. the bell is connected with the host by 433 M wireless duplex communication. According to the real-time timetable, the host controls the bell. Besides, the bell can switch the schedule automatically from summer to according to seasonal change. The LCD controller interface is user-friendly with good human-machine interaction. The electrical bells in different buildings also have theft sensor interrupt interface, monitoring sensor data in different channels, and alarming differently according to different emergencies. Prototype is tested well with higher accuracy and free from debugging, which can be widely applied in schools, companies and other occasions.