文档介绍：摘要
随着人们生活水平的不断提高,大家对住宅和办公室的安全意识也日益增加。因此,研究和开发防盗报警装置引起了科研单位和生产厂家的重视,特别是面对普通居民,价格低运行可靠的自动报警系统。
电话拨号防盗报警器作为家庭防盗报警器材的一员,非常经济实用。它进入工作警戒后,主控CPU不断检查触发开关的状态,当盗贼入室触动报警开关时,立即启动电话拨号报警程序向主人告警(当然也可以通过修改软件使其在现场发出高分贝报警声)。当户主接收到自家的电话号码和报警蜂鸣音信息时,便知道家里可能有人入室盗窃,从而做出相应的应急措施。实践证明,该系统报警快速,准确。由于该系统电路简单,而且利用的是公共通信网,因此不存在建立独立的报警系统网络问题,具有成本低,体积小,能耗极低且不影响正常打电话等突出优点。
关键词电话拨号,防盗报警,自动报警系统
Abstract
With the continuous improvement of people's living standard, people of residential and office safety awareness
is also increasing. Therefore, the research and development led to anti-theft alarm device manufacturers research units and the attention, especially in the face of the general population, low prices and reliable operation of the automatic alarm system.
Telephone dial-up burglar alarm equipment burglar alarm as part of the family of a very economical and practical. Work it into the guard, the master CPU constantly checking the status of the trigger switch, when the thieves touched burglary alarm switch, dial the police to immediately launch the procedure to alert the owner (of course, modify the software so that it can be issued at the scene of high decibel alarm sound) . When the head of household to receive its own telephone number and alarm beep sound information, we should know that some people may burglary at home in order to make appropriate contingency measures. Practice has proved that the system report to the police quickly and accurately. Simple circuit as a result of the system, and use of work, hence there is no alarm system to establish an work with a low-cost, small size, low power consumption without affecting the normal phone call to highlight the advantages of such.
Key words telephone dial-up, anti-theft alarm, auto alarm system
目录
摘要 I
Abstract II
目录 III
1 引言 1
1
国内外研究概况 1
2 单片机介绍 3
3
3
3
MCS-51的寻址方式 5
5
5
7
3 系统方案及电路设计 8
系统方案 8
脉冲拨号原理 8
脉冲拨号实现过程 9