设计了一种具有交互式、分布式半双工无线通信能力 ,且数据传递可靠 ,具有一定保密水平的报警 /控制系统。实践表明 ,该系统功能具有很强的扩充性 ,且用途广泛 An alarm / control system with interactive and distributed half-duplex wireless communication capability and reliable data transmission with a certain degree of security is designed. Practice shows that the system features a strong scalability, and a wide range of uses