《基于AT89C51单片机的智能型客车超载检测系统的设计》-毕业论文.docVIP

河北农业大学 本科毕业论文(设计) 题 目： 智能型客车超载检测系统的设计 学 院： 机电工程学院 专业班级： 电气工程及其自动化0802 学 号： 2008214050402 学生姓名： 指导教师姓名： 指导教师职称： 教授 摘要 针对当前客车超载不断引发重大事故，设计了一种客车超载监控系统，本设计以AT89C51单片机为核心，通过光电传感器的检测数据转换成电流信号，然后由单片机对接受的信号进行进一步的分析处理。如果客车超载了，扬声器先进行报警，而后由继电器切断客车的打火装置，直到客车的载重量小于预定值时，扬声器报警信号停止，继电器恢复对客车的启动装置，从而最终实现对超载现象进行相关控制。 关键词：客车超载系统检测，单片机，光电传感器。 Absract in view of the current coach overload continuously lead to major accident, design a kind of bus overload monitoring system, this design AT89C51, through the photoelectric sensor detection data convert current signal, and then by the monolithic integrated circuit to accept the signals further analysis processing. If the coach overload, the speaker to call the police, and then cut off the bus by relay strike device, until the bus load for less than the target value, the speaker alarm signal to stop, relay restore the start-up equipment on passenger cars, therefore, to reach the final of overloading phenomena are relevant control. Keywords: coach overload system detection, microcontroller, photoelectric sensor. 目录 1绪论............................................................................................................................4 2系统的整体结构........................................................................................................4 2.1系统的组成.........................................................................................................4 2.2系统的原理.........................................................................................................6 3系统硬件的设计........................................................................................................6 3.1系统硬件总体的组成.........................................................................................6 3.2检测模块电路................