摘要
介绍车速里程表的总体设计思路,分析了车速传感器的脉冲信号与车速和里程累计的实现原理。系统以89C51单片机为核心处理器,配以外围电器驱动电路,实现了车速里程表从信号采集、处理、转化、输出显示的功能。
The general design scheme of automobile speed and odometer is introduced, the pulse signal of velocity sensor and the implement principle of velocity and accumulated distance are analyzed. The System takes 89C51 MCU as core processor, equipped with exterior-drivers to realize the instrument functions from signal collection to disposal, translation and output.
出处
《仪表技术》
2007年第1期48-49,52,共3页
Instrumentation Technology
关键词
数字仪表
车速里程表
光电式传感器
信号采集
digital instrument
velocity and odometer instrument
light electric sensor
signalcollection
