出租车计费系统论文(修改版本).doc

课程设计(论文)说明书 题 目： 出租车计费系统 院 （系）： 信息与通信学院 专 业： 微电子学 学生姓名： 学 号： 指导教师： 职 称： 副教授 2013年 12月 10日 摘 要 现在各大中城市出租车行业都已普及自动计费系统，所以计费系统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，计费系统的普及也是毫无疑问的，所以未来汽车计费系统的市场还是十分有潜力的Abstract Now the automatic mileage fare meter is popularized in each big or media-sized cities taxi profession, therefore the development of mileage fare meter technology has been a foregone conclusion. While in part small cities it’s underused, but speeding up day by day along with the urban construction, which will symbolize the urban appearance taxi profession that will accelerate to develop too. And mileage fare meters popularization will also be without a doubt; therefore the future automobile mileage fare meters market will have the great potential. In this design, I am responsible for the part of hardware. This electric circuit takes AT89S51 monolithic integrated circuit as a center and that optoelectronic switch (in this electric circuit to replace with analog switch), which realizes the rental car valuation. The output uses 8 sections of digital display tubes, demonstrating that goes the total course and the aggregate amount. The design of simulated rental car mileage fare meter: the fare meter can demonstrate the course of rode, preinstall start price and start distance in kilometer. The traveling schedule realizes charge according to the entire journey, attaching the reset function and the start function. The fare meter starts the valuation after the beginning. We use the monolithic integrated circuit to carry on the design and use the little hardware and the suitable software coordination to realize the design mutually and flexibly, furthermore we can complete the more additional functions through the software programs and the application prospect is promising. Key words：Taximeter，Single-chip AT89S51，Power Preservation，12864 Display第1章 绪 论 1 1.1引言 1 1.