一种声光语音联动报警系统的设计

摘要

该设计采用PIC 16 F877A芯片设计出稳定可靠、安全加密的主机和分机声光语音报警系统,主机可以与20个分机连接通信,每个分机通过拨码开关拨码来相互区分,每个分机支持六种报警类型,主分机之间采用485通信方式,主机和每一分机之间用一对光端机进行传输报警信号,其传输距离最高可达200公里.%An alarm system of acousto-optic voice on master station and extended station is designed by PIC16F877A chips,and that system is stable and reliable,safe and encrypted. The master station can be connected to communicate with 20 extended stations,which are differentiated with each other by the dialing-up of a dial switch,and 6 kinds of alarm types are supported by every extended station. The 485 communication mode is adopted between master station and extended station,and the optical transmitter and receiver are used to transmit alarm signal between master station and every pair of extended stations,of which the transmit distance can reach 200 kilometer.