摘要
本文介绍了一种利用GPS技术研制的公路测速系统速度标准装置,通过GPS接收处理模块,采用多普勒频移变换速率的测量方式,可直接输出与速度成比例的数字脉冲频率信号,经滤波、放大、整形后,送入单片机运算处理,以实现对机动车速度和里程的测量。本标准装置适用于各种具有超速拍照功能的机动车超速自动监测系统的检定与校准。
A standard equipment of highway speed measurement system using GPS technology introduced in this paper. Through the GPS receiver module, using Doppler frequency shift transform the rate measurement method, Digital pulse-frequency signals proportion to the number of vehicle speed can be output directly. By filtering, amplifing and adjusting,then into the microcontroller processing, to achieve the vehicle speed and mileage measurement. The standard equipment applied to test and calibration of all kinds of automatic devices with overspeed and camera monitoring functions.
出处
《微计算机信息》
北大核心
2008年第25期245-246,222,共3页
Control & Automation
基金
国家科技部公益行业科研专项基金(2007DIA10-3)
关键词
GPS
单片机
机动车超速自动监测系统
测速
GPS
single chip microcomputer
vehicle overspeed auto-monitoring system
speed measurement
