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.
出处
《传感器与微系统》
CSCD
北大核心
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)
