基于单片机的出租车计费器系统设计 毕业设计精选.doc

基于单片机的出租车计费器系统设计 毕业设计 西安航空职业技术学院 毕业设计论文 基于AT80C51单片机的出租车计费系统设计 【摘要】 随着出租车行业的发展，出租车行业已经是城市交通的重要组成部分，对出租车的开发变得尤为重要。 关键词：出租车，80C51，霍尔传感器 Abstract: As the taxi development, urban taxi industry is an important component of the traffic, developing the taxi becomes more and more important. In this paper, it shows the design of microcontroller-based taxi billing system, the system uses 80C51 microcontroller core, uses A44E Hall sensor measuring vehicle distance and make the vehicle and the fare output to the digital display tube. The article also describes the working principle of the Hall sensor, Hall sensor bases its work on the Hall effect, when the Hall sensor is in a changing magnetic filed it can generate the pluse which is received by microcontroller to calculate the vehicle distance, and then calculate the total fare. The show circuit uses the 8-bit digital display tubes, of which 4 used to show distance,4 to display the total fare. The system can not only achieve the basic taxi distance and fare, but also can calculate the intermediate wait time to adjust the prices, when the taxi is empty the starting can be set.The article not only describes the hardware structure of each module in the circuit in detail,but also describe the software design in detail. Key words: Taxi 80C51 Hall sensor 1 西安航空职业技术学院 毕业设计论文 目 录 1 绪论....................................................................................................................................... 3 1.1单片机应用的发展及现状 .............................................................................................. 3 1.1.1单片机概述........................................................................................................... 3 1.1.2单片机的应用 ...................................................................................................... 3 1.2现今对出租车计费系统的有关研究 ...................................................