基于GPS的车速传感器开发  

Development of vehicles speed sensor based on GPS

作　　者：徐中明[1,2] 叶芳[2] 谭海伟[2] 张志飞[1,2] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400030 [2]重庆大学机械工程学院,重庆400030

出　　处：《传感器与微系统》2009年第6期89-91,共3页Transducer and Microsystem Technologies

基　　金：重庆市科技计划资助项目(2006BA6017)

摘　　要：多种车辆性能试验都需要测量瞬时车速,将广泛应用于定位的GPS技术应用在车速测量上,利用单片机PIC16F877作为控制器的核心,E580 OEM模块接收GPS信号,通过软件、硬件设计,开发出成本低廉车载GPS车速传感器,测量精度较高,抗干扰性能较好,易于扩展升级,且有模拟、数字输出,并带车速显示,可以直接连接数据采集器采集车速信号。通过试验验证表明:系统运行快捷稳定,测量精确。The measurement of the instantaneous speed is needed in vehicles performance test. The GPS technology which is widely used in the GPS positioning is applied on the. vehicle speed measurement. The SCM PIC16F877 is the core of the controller, while the E580 OEM module is used to receive GPS signals as the key component. Through software and hardware design, the GPS speed sensor which is a 10w-cost, high accuracy, antijamming performance, easy to upgrade and expand, and the data can be directly connected with data acquisition system is developed. The road test shows that the system is running fast and stable, and the results of the speed measurement is accurate.

关 键 词：全球定位系统 车速 传感器 电路设计 

分 类 号：U483[交通运输工程—载运工具运用工程]