基于MSP430的车载雷达测速测距系统  

Vehicle-mounted Radar Velocity and Distance Measurement System Based on MSP430

作　　者：谢宜生[1] 沈国江[1] 吴琦灿[2] 

机构地区：[1]浙江大学工业控制技术国家重点实验室,杭州310027 [2]浙江水利水电专科学校电气工程系,杭州310018

出　　处：《计算机工程》2011年第18期236-239,共4页Computer Engineering

基　　金：国家"863"计划基金资助项目(2007AA11Z216);国家自然科学基金资助项目(61174174);浙江省自然科学基金资助项目(Y1090208)

摘　　要：为解决大雾沙尘暴等恶劣天气条件下交通事故频发以及汽车无法上高速公路的难题,提出一种基于MSP430单片机的车载雷达测速测距系统。该系统以16位超低功耗微处理器MSP430F436为核心,通过检测微波雷达传感器输出混频信号的频率和幅值,获取与前方目标车辆的相对速度和距离值并对其进行实时显示。当检测值超过阈值时该系统发出光声报警,在反应时间内警示驾驶员采取安全措施,从而避免与前方的目标车辆相撞。实验测试结果表明,该系统具有测量精度高、量程宽、功耗低等优点。In order to solve the problems of high frequency road accident and automobile can not go to the freeway under the atrocious weather like dense fog and sandstorm,this paper presents a kind of velocity and distance measurement system by using vehicle-mounted radar.The system with the kernel of 16 bit Ultra Low Power（ULP） microprocessor MSP430F436,adopts the value of anterior target vehicle＇s velocity and distance by detecting the frequency and amplitude of the microwave radar sensor＇s output maxing signal.And it displays the values at real time.To avoid colliding with the target vehicle ahead,it alarms to drivers in reaction time with light and sound when the measurement is above the critical value.Testing result of experiments indicates that the system has the excellences of high measurement precision,large measuring range,and low power consumption.

关 键 词：超低功耗 MSP430单片机 微波雷达 测速测距 车载装置 

分 类 号：TP306[自动化与计算机技术—计算机系统结构]