单片机设计出租车计价器毕业论文

058出租车计价器系统设计 双击自动滚屏 文章来源：一流设计吧 发布者：16sheji8 发布时间：2008-7-30 9:45:00 阅读：397次 基于89S51单片机的出租车计价器系统设计 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，但随着城市建设日益加快，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。本电路以89S51 单片机为中心、附加A44E 霍尔传感器测距，实现对出租车计价统计，采用AT24C02 实现在系统掉电的时候保存单价和系统时间等信息，输出采用8 段数码显示管。本电路设计的计价器不但能实现基本的计价，而且还能根据白天、黑夜、中途等待来调节单价，同时在不计价的时候还能作为时钟为司机同志提供方便。 关键词：89S51单片机 A44E霍尔传感器 断电保存 8段数码显示管 Abstract: It is now the major cities in the taxi industry have universal automatic meter, meter technology development is a foregone conclusion. And some small cities not yet universal, but with increasing speed up urban construction, a symbol of urban landscape taxi industry will also accelerate development, and the popularity meter is no doubt, therefore, the future of the automobile market valuation is still potential . The circuit of 89 S51 MCU as the center, additional A44E Hall sensor location and realize the Taximeter statistics, a brownout AT24C02 achieve in the system and when the system priced preservation time information, output by paragraph 8 of the digital display. The circuit design of the meter can not only realize the basic valuation, but also in accordance with the day, night, halfway to wait for price regulation, while also not denominated as a time clock to provide convenience for the drivers comrades. Keywords: 89 S51 MCU A44E Hall sensor power preservation of digital display paragraph 8 目 录第一章 引言………………………………………………………………………………………1第二章 出租车计价器的设计内容………………………………………………………………22.1基本设计要求 …………………………………………………………………………………22.2拓展功能 ………………………………………………………………………………………2第三章 方案论证…………………………………………………………………………………3 本文来自: 一流设计吧(www.16sheji8.cn) 详细出处参考： 请采纳。

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