精品文档---下载后可任意编辑淮安信息职业技术学院毕业论文题 目停车场信息管理系统的讨论学生姓名顾浩学 号42911131系 部电气工程系专 业机电一体化班 级429111指导老师龚希宾顾问老师揭志远精品文档---下载后可任意编辑摘 要本题为“停车场智能计数器”，文章主要讨论在停车场方面的使用，分析讨论其工作过程及原理，并以此为基础讨论其运行。整个设计由以下几个部分组成：稳压电源、光电耦合器、反向互锁识别电路、可逆计数器、预置数电路、译码电路、显示器电路等。主要远离是讨论车辆在驶入或使出时，经过光电耦合器的各个过程，由光电耦合器输出高低电位的变化来给到双上沿 D 触发器信号，根据车辆的驶入使出，输出端将传送相对应的脉冲信号给计数器，可逆计数器将会根据接收到的脉冲信号进行加计数还是减计数，再经译码器后，由七段数码管显示停车场内现有的车位数量。电路中同时运用了拨码开关来对可逆计数器做预置数，并在此基础上进行加减计数。关键字：光电耦合器、触发器、可逆计数器、脉冲AbstractThe subject of "counter intelligence car-park", the article focused on the use of the parking area, analysis of its work processes and principles, and as the basis for discussion of its use. The whole design from the following components: power supply, Photometric, to identify the direction of interlocking circuit (even rising edge of D flip-flop), reversible counter, preset number of circuits, decoding circuitry, show circuit. The main principle is to discuss the vehicles entering or leaving, after all Photometric the process, from Photometric output level of potential changes to the rising edge of the double-D trigger signal, according to the traffic passing vehicles Out, the output will be sent corresponding to the pulse signal to the counter, will be irreversible counter to the pulse of the receiving signals or by counting and counting, and the decoder, from forepart digital display of the existing car parks The number of parking spaces. At the same time the use of c...
