毕业设计-防盗报警信号无线发射与接收机的设计.doc

目录
摘要: 1
Abstract 2
1 绪论 3
防盗报警器研究的背景及意义 3
6
2 系统设计方案论证与方案选择 8
系统设计方案 8
9
10
。 10
编码芯片LX2262引脚图与功能 12
解码芯片LX2272引脚图与功能 13
-88引脚图 14
PCR1A引脚图及介绍 16
3 硬件电路的设计 17
硬件电路具体设计 17
: 17
17
18
编码与发射电路设计 19
编码发射电路介绍 19
21
数据解码与接收电路设计 21
21
22
参考文献 23
4 总结 24
致谢 26
防盗报警信号无线发射与接收机的设计

摘要:无线技术已经成为先进科学技术的重要组成部分,它在各领域都得到广泛的应用。用作防盗监控报警器,具有良好的隐蔽性,抗干扰能力强,而且使用不分白昼。本设计的目的在于设计出一个具有实用价值的、性能较高的无线防盗报警器。实现的原理是热释电红外传感探测器感应到入侵者的红外热辐射(人体体温),将其转换成超低频信号(或通过对射电路发射的红外线被遮挡时产生低频信号),经电路放大编码,然后调制发射信号,再由接收机接收。利用无线通信技术实现二机(检测器,主机)分离。检测器是利用红外人体检测探头检测预先设定好的范围内的情况,一旦有危险便向主机发出信号;而主机功能是通过无线接受信号,再经集成电路处理,然后用发光二极管区分出信号发出的具体区域。该设计成果误报率较低、安装和配置容易、成本低、使用非常方便的特点。由于我家是承包建筑的,平时工地机器比较分散,电动机经常被盗,用有线防盗在工地这种环境下不太适用,该装置在这样的环境中具备一定的实用性。
关键字:红外探测;无线发射;无线接收;防盗报
Abstract: Advanced wireless technology has e an important part of science and technology .It has been implied in various fields widely. As a burglar alarm monitoring with a good concealment and strong anti-interference, it can be used day and night. The purpose of this essay is to design a practical example, which having a wireless burglar alarm. The basic principle of the alarm is the pyroelectric infrared sensor infrared detector sensitive to thermal radiation intruders (human body temperature), and convert it into ultra-low-frequency signal (or radio circuits by the infrared emission low-frequency signal is generated when blocked), Amplified by the circuit code, then modulated and transmission the signal and received by the receiver latter. Using munication technology 2 machines (detectors, host) separation is the use of infrared detector probe detection of human testing within a predetermined situation, once it is dangerous to the host signal Pianxiang. The main function is to accept a wireless signal processing via single chip, and then send the signal light