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基于单片机的出租车计价系统的设计
姓名
专业班学号
指导教师
摘要
随着我国经济的迅速发展,人民生活水平的显著提高,城市的交通日趋完善,出租车计价器的应用也越来越广泛。生活中,几乎每个人出门都离不开出租车,所以它在我国的交通运输中承担着重要的角色,而出租车计价器是出租车上必不可少的重要仪器。所以,以单片机为核心的智能出租车计价系统的开发就显得特别重要。这个设计采用AT8S51单片机为主控器,以A44E霍尔传感器测距,实现对出租车的多功能的计价设计,并采用掉电存储单元AT24C02来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个数码显示管。
此设计是以单片机AT89S51为核心,通过外围及附属电路来实现计价,计时,计费,存储等功能。它拥有掉电保护和时钟功能,特别是可以在白天和晚上转换不同价位,等待时启用等待计价功能。其中还给出了硬件电路图及主程序流程图,阐述了软硬件设计过程中关键技术的处理。
关键词:出租车计价器单片机控制

Based on SCM taxi valuation system design

Abstract

Along with the rapid economic development, the people's living standards improved significantly and traffic in the city has been improved, the application of the meter taxi more and more widely. Life, almost everyone out without a taxi, so it in our traffic transportation undertakes the important role, and the meter taxi cab is an important instrument. So, with the single chip processor as the core of development of the system of intelligent taxi valuation is especially important. This design USES the AT8S51 microcontroller as the main controller to A44E hall sensor range, realize the taxi multifunctional valuation design, and using power lost storage unit AT24C02 to achieve in the system of power lost when save unit price and system information such as time, with six digital displayer output.
This design is based on AT89S51 single-chip puter as the core, the periphery and accessory circuit to realize the valuation, timing, billing, storage, and other functions. It has the power lost protection and clock function, especially in the day and night can convert different price, wait wait for valuation enable functions. Which also gives a hardware circuit diagram and main program flow chart, expounds the process of software and hardware design of key technolo