室内防盗智能控制系统设计.doc

室内防盗智能控制系统设计

页数 39 字数 13949

摘 要
室内防盗检测系统作为一种新型的电子防盗设备广泛应用于家庭住宅区。目前市面上所拥有的家庭电子防盗报警器，只能用于单一的住宅，不利于统一管理，而且也不能满足现代住宅区的发展要求，所以很有必要对家庭电子防盗器进一步完善和提高。
本文提出了一种基于单片机信号处理技术的防盗检测器的软硬件设计方法。应用该方法设计的系统在反应速度、误报率、漏报率以及抗干扰能力方面都具有较好性能。本系统利用热释电红外传感器的红外辐射与红外探测的原理，设计的新型探测器，测量范围广, 响应速度快, 灵敏度高，抗干扰能力强，安全可靠 。并采用单片机89C51作为人体探测系统的核心，以热释电红外线为数据采集部件，经过比较放大之后，输入单片机进行数据判断及处理。当检测到有被测物体进入测量范围时，系统自动发出声光报警信号，等待一段延迟时间后自动消除报警信号，并可手动解除报警信号。当有主人在家系统无需报警时,可开启楼道灯控制系统，即传感器探测到有人经过时照明灯亮,等待一段延迟时间后自动熄灭,并可手动来控制延迟时间的长短。系统的另外一个功能是检测人数及最大容量人数控制，当探测头探测到有人经过时,系统自动计数加一，并可以通过键盘控制最大容量人数，如果探测到的人数超过最大容量人数时则发出自动报警信号，并通过LED显示检测到的人数与最大容量报警人数。系统使用单片机与PC机通信原理，把采集到的数据传输给计算机统一处理。

关键词: 热释电传感器,单片机,声光报警,键控

Abstract: Room theft-proof detection system guards against theft and has an extensive equipment to apply the residential area of the family as a kind of new-type electron. The electronic burglar alarm of family that has on the market at present, can only be used in the single house, unfavorable to managing in unison, and can not meet the development request of the modern residential area either, so it is very necessary to perfects and improves the electronic burglary-resisiting device of family further.
This text has put forward a kind of software and hardware design method of theft-proof detection based on signal treatment technology of the one-chip computer. The system using this method to be designed has better performance in reaction speed, wrong report rate, rate of failing to report and anti-interference ability . This thesis main content is as follows:
By using a pvroelectric infrared sensor，the author of this paper invented a new kind of detector which increases the sensitivity and signal-to-noise ratio as well as the capacity of anti-Interference of this kind of instrument ; therefore，this new kind of detector is of practical use.Adopt one-chip computer 89C51 survey systematic core as the human body, fever for Israel clear up electric infrared ray gather the part for datum, after relatively enlarging, input the one-chip computer and judges data and deals with. When measuring to has testees to enter the range of measuring, the system gives out mere alarm signal once automatically, and can remove the alarm signal manually . 4. Show number of people and large capacity warning number most got to measure through LED , at the same time can change the large capacity warning number most with keyboard. The system uses the one-chip computer and communication principle of PC , the data transmission that gets gathering is dealt with in unison for the computer.
Keywords: Pyroelectric Infrared Sensor SCM Controlled by Keyboar

目 录
1 前言……………………………………………………………………….……….…....1
2 热释电传感器的原理与结构………………………………………………….……….2
2. 1 热释电传感器探测原理……………………………………………………….…….2
2. 2 红外测温原理……………………………………………………………….……….2
2.3 热释红外传感器的结构………………………….………………………………….3
2.4 菲涅尔透镜……………………………………….……………………….…………5
3 总体电路的设计………………………….……….………………………….………...6
3.1系统组成………………….……………………………….………………….………6
3.2单片机系统………………….…………………………………….………….………7
3.3热释电传感器的基本电路分析及设计……………….………………….….………8
3.3.1高低通放大器………………………….…………………………………..………8
3.3.2电压比较器………………………………….…………………………….….……8
3.3.3开关电路………………….……………………………………………….….……8
3.3.4延时电路………………….……………………………………………………..…..9
3.4 执行电路………………….……………………………………………………..…....9
3. 5 键盘控制电路设计………………….………………………………………………11
3.6 LED显示电路设计…………………….…………………………………………...12
4 软件设计………..…………………….………………………………………………..14
4. 1主控程序…………………….……………………………………………………….15
4.2键盘扫描程序……………….…………………………………………………….…16
4.3动态显示程序设计…………….…………………………………………………….17
5系统测试报告………………….…………………………………………………….....18
5.1测试设备………………….………………………………………………………….18
5. 2测试方法………………….………………………………………………………….18
5. 3功能测试……………….…………………………………………………………….18
5.4 指标测试及结果分析…………….………………………………………………….19
6 本设计的功能及使用环境……………….……………………………………………21
6.1 本设计的功能……………………………….…...…………………………………..21
6.2 本设计使用环境………………………….…….……………………………………21
7 总结………………………………………………………...…………………………..23
致 谢………………………………………………………………………………….23
参 考 文 献…………………………………………………...…………………………24
Abstract…………………………………………………………...………….……………25
附 录…………………………………………………………...……………………..27




参 考 文 献
李朝清. 2002年12月. 单片机原理及接口技术. 北京：北京航空航天大学出版
孙传友，孙晓斌，汉泽西等. 2001年3月. 测控系统原理与设计. 北京：北京航空航天大学出版,
沙占友，王彦朋，孟志永. 2002年. 单片机外围电路设计. 北京：电子工业出版社
张培仁. 2003年. MSC-51单片机原理与应用. 北京：清华大学出版社