急求翻译~英语达人速进~谢绝工具网站翻译~~

This paper introduces the electric car mileage / speedometer is AT89C52 Hall sensor systems and the combination of speed mileage measurement system. The system is an extension of the protection functions of 24 31th EEPROM memory as data storage; using Hall sensor acquisition speed pulse signal; LED Display Module using real-time showing the speed and mileage. System Design fully consider the signal processing circuit and display circuit reliability. The device is characterized by : a stable and reliable measurement, dynamic display timely and accurate, wide application objects. This paper introduces the automobile instrument development process and the Speedometer trends and the development and current conditions. Secondly, according to the system requirements, to develop sensors, microprocessor, LED display modules, and other important device options. Then, according to the actual requirements for the use of the corresponding hardware SCM system. Finally, the use of C51 programming tools, hardware and system software supporting the design process.