现代计算机(专业版)
現代計算機(專業版)
현대계산궤(전업판)
MODERN COMPUTER
2014年
1期
64-67
,共4页
AT89S51单片机%出租车计价器%霍尔开关传感器A44E
AT89S51單片機%齣租車計價器%霍爾開關傳感器A44E
AT89S51단편궤%출조차계개기%곽이개관전감기A44E
AT89S51%Taximeter%A44E
设计一款基于单片机的出租车计价器。该出租车计价器以AT89S51为核心部件,采用单片机最小系统,结合DS1302时钟电路、AT24C02掉电保护电路和LED数码管显示,实现行车路程的显示、计费和调价等功能。其中,路程测量采用霍尔开关传感器A44E,它将行车路程变为标准脉冲输入单片机,单片机根据脉冲个数计算出总里程和价格。
設計一款基于單片機的齣租車計價器。該齣租車計價器以AT89S51為覈心部件,採用單片機最小繫統,結閤DS1302時鐘電路、AT24C02掉電保護電路和LED數碼管顯示,實現行車路程的顯示、計費和調價等功能。其中,路程測量採用霍爾開關傳感器A44E,它將行車路程變為標準脈遲輸入單片機,單片機根據脈遲箇數計算齣總裏程和價格。
설계일관기우단편궤적출조차계개기。해출조차계개기이AT89S51위핵심부건,채용단편궤최소계통,결합DS1302시종전로、AT24C02도전보호전로화LED수마관현시,실현행차로정적현시、계비화조개등공능。기중,로정측량채용곽이개관전감기A44E,타장행차로정변위표준맥충수입단편궤,단편궤근거맥충개수계산출총리정화개격。
Designs a taximeter system based on AT89S51 singlechip minimum system. The hardware of the system includes DS1302, AT24C02 and LED. Its function which contains such as setting price of each mile, total fare, displaying the time etc, can be achieved by singlechip. Its working principle is achieved by the AT89S51 by means of pulse signal detected by sensor A44E, puts pulse signal into the AT89S51 causing interruption. According to the numbers of pulse signal, singlechip figures out the total mileage and price.