基于单片式定位芯片在无线信息测距中的研究

Technical Study of Wireless Information Ranging Transmission Based on the monolithic positioning chip

系统将从卫星接收到信息,单片式定位芯片CXD2951GA-2承担着接收从卫星获得自车运行位置与速度的信息的任务,与SCM通过UART口传输数据,SCM接收到的这些信息再通过无线信息传输方式发送给邻近车辆。这样在车辆之间就建立起互通信机制,可实现依靠现代通信机制获得实时距离来防止高速路汽车追尾事故的发生。

In System,the information is received by satellite,single-positioning chips CXD2951GA-2 assumes receive the information of the car running position and speed from the satellite,and transmit of data from the mouth UART to SCM, then SCM send theses to the nearby vehicles by the wireless information transmission.Thus,the mutual communication mechanism is set between such vehicles.It can receive real-time distance depend on modern correspondence mechanism to prevent rear-end collision in high speed road.