文档介绍：I 摘要随着人们生活水平的提高和安全防范意识的增强, 急需开发面向普通居民、价格低廉、运行可靠的自动报警系统。鉴于住宅电话和移动通讯设备已相当普及, 因此利用公共通讯网作为报警系统的传输媒体是最佳的选择。本文介绍了一种基于公用电话网,利用单片机 8051 、 DTMF 信号收发芯片 MT8880 、集成语音芯片 ISD1420, 集成温度传感器 AD590 和气体传感器 TGS202 等,利用多传感器信息融合技术, 完成语音报警的实用、可靠的单片机语音自动报警系统, 着重阐述了该系统的组成形式及工作原理。基于该系统原理的相关产品已在线使用。实践表明, 单片机技术在系统报警和其它一些自动控制领域中有着广泛的应用前景。本文设计了一个简单,适用的单片机火警报警系统,该系统能自动完成对布测点检测,确认火警后能自动报警,并显示火情点,记录火灾发生时间。关键词:单片机;传感器; 数据处理;报警 II Abstract Along with people living standard enhancement and safe guard consciousness enhancement, urgently needed development face ordinarily resident, low in price, movement reliable auto alarm system. In view of the fact that the residence telephone and the two-way charges for cellular phones equipment quite popularized, therefore uses the to take alarm system's transmission medium is the best choice. This article introduced one kind based on the public work, using monolithic integrated circuit 8051, DTMF signal receiving and dispatching chip MT8880, integration speech chip ISD1420, integration temperature sensor AD590 and gas sensor TGS202 and so on, uses the multi-sensor information fusion technology, completes the pronunciation warning practical, the reliable monolithic integrated circuit pronunciation auto alarm system, elaborated this system'position form and the principle of work emphatically. Based on this system principle related product already online use. The practice indicated that the monolithic integrated circuit technology has the widespread application prospect in the system warning and other automatic control domain. This article has designed a simplicity, the suitable monolithic integrated circuit fire-alarm alarm system, this system plete automatically to the cloth measuring point examination, confirmed after the fire-alarm, can the auto-alarm, and demonstrates the state spot, the record fire has the time. Key words : Monolithic integrated circuit; Sensor; Data processing; Warning III 目录第1章绪论...............................................................