对射式红外线防盗报警器的设计 .doc

对射式红外线防盗报警器的设计 摘 要 本系统是基于AT89S52单片机控制的红外线防盗报警器，主要由红外线发射部分、红外线接收部分、单片机以及声光报警部分组成。可通过发射电路发射的红外线被遮挡时控制报警系统报警, 通过单片机控制报警电路的运行，并能同时进行声光报警，用红外线收发管进行检测，安装隐蔽，不易被发现；探测信号采用脉冲信号，节能且抗干扰。系统可以探测到一定范围内的人的闯入, 可以应用在安防范围比较确定的情况下。采用这种方法设计的防盗报警器具有成本廉价和探测效果好的优点，有着广阔的市场前景。 关 键 词：单片机；红外线防盗报警器；声光报警 ABSTRACT The system is a infra-red anti-theft alarm controled by single-chip AT89S52, including infra-red part of the launch, part of the infrared receiver, microcontroller, as well as part of sound and light alarm.The system will alarm when infrared ray has been blocked , through the single-chip microcomputer to control the operation of alarm circuit, and at the same time sound and light alarm, with infrared transceiver test tube, install hidden, can not easily be found; detection signal using pulse signal, energy-saving and anti-jamming. This system can detect a certain person within the scope of the intrusion, security can be applied to determine the scope of the case. Designed using this method of anti-theft alarm and detection in a cost-effectiveness of low-cost best advantages, has broad market prospects. KEY WORDS: Single chip microcomputer；Infrared anti-theft alarm; Sound and light alarm 目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc231279288 1 绪论 PAGEREF _Toc231279288 \h 1 HYPERLINK \l _Toc231279289 1.1 课题研究的意义 PAGEREF _Toc231279289 \h 1 HYPERLINK \l _Toc231279290 1.2 课题研究的目的 PAGEREF _Toc231279290 \h 1 HYPERLINK \l _Toc231279291 2 总体设计方案 PAGEREF _Toc231279291 \h 3 HYPERLINK \l _Toc231279292 3 硬件电路各部分电路设计 PAGEREF _Toc231279292 \h 5 HYPERLINK \l _Toc231279293 3.1 单片机控制系统电路 PAGEREF _Toc231279293 \h 5 HYPERLINK \l _Toc231279294 3.1.1 主控芯片的性能以及标准功能 PAGEREF _Toc231279294 \h 5 HYPERLINK \l _Toc231279295 3.1.2 主控芯片的主要结构及引脚功能 PAGEREF _Toc231279295 \h 6 HYPERLINK \l _Toc231279296 3.1.3 单片机控制部分电路 PAGEREF _Toc231279296 \h 8 HYPERLINK \l _Toc231279297 3.2 红外线发射电路 PAGEREF _Toc231279297 \h 8 HYPERLINK \l _Toc231279298 3.3 红外线接收电路 PAGEREF _Toc231279298 \h 9 HYPERLINK \l _Toc231279