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探索出租车计价器_单片机_自动化_PLC编程_课程设计_毕业

导读:出租车计价器-单片机-自动化-PLC编程-课程设计-毕业设计-毕业论文
毕业设计(论文)
摘 要
现在各大中城市出租车行业都已普及自动计价器,所以计价器技术的发展已成定局。而部分小城市尚未普及,但随着城市建设加快,象征着城市面貌的出租车行业也将加速发展,计价器的普及也是毫无疑问的,所以未来汽车计价器的市场还是十分有潜力的。本系统以STC89C54单片机为核心,用电机模拟车轮运转,A04E霍尔传感器测电机转数。文章详细介绍了出租车计价器的硬件电路和软件设计。硬件部分利用霍尔元件将电机每转一圈的脉冲数传入单片机系统,然后单片机系统将信号经过处理送显示。软件部分用C语言进行编程,采用模块化设计思想。该系统实现了对出租车里程的测量统计,并能将出租车的里程数、候时时间、时距并计总价用LCD实时显示。

关键词:里程,霍尔元件,LCD显示,时距并计
I
毕业设计(论文)
Abstract
It is the major cities in the taxi industry has universal automatic meter now,and meter technology development is a foregone conclusion. And some small cities not yet universal, but with increasing speed up urban construction, a symbol of taxi industry will also accelerate development, and the popularity meter is no doubt, therefore, the future of the automobile market valuation is still potential. By STC89C54 as kernel, electric motor imitating wheel revolving, using A04E Hall element to measure revolution, the measure and statistic are achieved. In this article, the hardware circuit and software design of taximeter are introduced in detail. About the hardware, the pulse number is transmitted of one cycle of the electric motor into Single Chip Microputer system. Then the signal processed by Single Chip Microputer system is sent
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