长沙航空职业技术（2025 届） 毕业设计（论文）开门自动灯及防盗报警器 学 院： 航空电子电气工程学院 专 业： 电气自动化技术 学 生 姓 名： 于崟峰 班 级： 电气 1101 学号： 06 指导老师姓名： 刘悦音 职称： 教授 二零一四年五月The Design of Imfrared AlarmHu Ruifeng Electronic Information Engineering Specialty No: 6102106010Abstract : This system used Pyroelectric infrared sensor. Its manufacture is simple, and its cost is low, and fixing is convenient. Besides, the system has many merits, such as steady guard against theft, and strong antijamming ability, and high thesensitivity, and high reliability. The fixxing of this alarm is covert, which is discovered easily by cracksman. After has been processed by SCM, the signal of alarm communicates with PC, which is convenient for uniform management. This design includes hardware part and software part. The hardware part includes the control circuit of SCM, and the infrared probe circuit,and the alarm circuit, and LED control circuit. The SCM uses AT89C51, the overall system works under the control of the systemsoftware. Key words: SCM; infrared sensor; data collection; alarm circuit目 录0 摘要···································································11 引言····································································41.1设计任务与要求 ·······················································42 基础知识介绍···························································42.1热释电红外传感器简单介绍 ·············································42.2 PIR的原理特性····...
