说明：  随着社会的不断发展。防盗报警系统也越来越受到人们 的关注。最初它仅应用在企事业单位、厂房仓库或各大商场超 市中，来保证国家和集体的财产安全；如今，在私家车上，甚至 在家里都安装了防盗报警系统。这说明。防盗报警器在维护国 家、集体以及个人的财产安全上所发挥的作用越来越重要。因 此，研究功能更完善，性能更稳定，工作更可靠的防盗报警器 是一件很有意义的事情。目前，人们常用到的是利用热释电红 外传感器设计的防盗系统。本文介绍了三个例子。
(With the continuous development of society. Anti-theft alarm system is also more and more attention. Initially it only applied to enterprises, factories or warehouses in all major supermarkets, to ensure that state and collective property Now, in a private car, even in the home are equipped with anti-theft alarm system. This shows that. Burglar alarm in the maintenance of national, collective and personal property on an increasingly important role. Therefore, the research function better, more stable, more reliable anti-theft alarm is a very significant thing. Currently, people used to is the use of pyroelectric infrared sensor design alarm systems. This article describes three examples.)