摘要：出租車計價器是乘客與司機雙方的交易準則，它是出租車行業發展的重要標志，是出租車中最重要的工具。它關系著交易雙方的利益。具有良好性能的計價器無論是對廣大出租車司機朋友還是乘客來說都是很必要的。因此，汽車計價器的研究也是十分有一個應用價值的。

　　　本設計用的是一個基于單片機STC89C52的出租車計價器設計,包含復位電路,時鐘電路,鍵盤電路等。在上電時液晶顯示器LCD12864顯示最初的起步價，里程收費，等待時間收費三種收費，通過按鍵可以調整起步價，里程收費，等待時間收費。通過按鍵模擬出租車的運行，暫停，停止。在LCD12864液晶顯示器上運行時暫停的時間，通過計算可以得出總共的費用和總的路程。在這里主要是以STC89C52單片機為核心控制器。

關鍵字：STC89C52；LCD12864液晶；出租車計費器

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