摘要：出租车计价器是乘客与司机双方的交易准则，它是出租车行业发展的重要标志，是出租车中最重要的工具。它关系着交易双方的利益。具有良好性能的计价器无论是对广大出租车司机朋友还是乘客来说都是很必要的。因此，汽车计价器的研究也是十分有一个应用价值的。

　　　本设计用的是一个基于单片机STC89C52的出租车计价器设计,包含复位电路,时钟电路,键盘电路等。在上电时液晶显示器LCD12864显示最初的起步价，里程收费，等待时间收费三种收费，通过按键可以调整起步价，里程收费，等待时间收费。通过按键模拟出租车的运行，暂停，停止。在LCD12864液晶显示器上运行时暂停的时间，通过计算可以得出总共的费用和总的路程。在这里主要是以STC89C52单片机为核心控制器。

关键字：STC89C52；LCD12864液晶；出租车计费器

Abstract：Taximeter is both passengers and drivers of the transaction criteria, it is the taxi industry an important symbol, a taxi is the most important tools. It relates to the interests of both transactions. Has a good performance regardless of the meter is a vast number of taxi drivers or passengers are very necessary. Therefore, the car meter is also very much a study of value. 

　　　The design is based on a monolithic integrated circuit STC89C52 taxi billing design, with reset circuit, clocking circuit, keyboard circuit. e.

　　　The characters in the crystal that the initial12864, charges, fees mileage waiting time, three buttons can be adjusted by charging fees, just waiting time, mileage. Through the simulation of the taxi, buttons, stop. Suspension In the liquid crystal display can run 12864, operation time, when suspension can be obtained by the computation of the total cost.here is mainly for the core controller, STC89C52 SCM 

Keyword： STC89C52；12864 LED；Taxi devices