The Design of Vehicle GPS Terminal Based on S3C44BOX
GPS vehicle navigation system includes three main parts:navigation control centre,vehicle navigation terminal and VHF wireless communication network. This paper mainly introduces the design of vehicle navigation terminal.The hardware uses S3C44BOX processor,integrates POLARIS-A GPS module,and uses TL16C554 CMOS chip to extend another four UART to enhance the communication capability of this board Embedded operating system μC/OS-II is also adopted,and the main function modules of terminal navigation software includes GPS data receiving task,orientation data processing task,processed data transmitting task,etc. We use TDMA protocol to transmit data to control centre,which is every terminal transmits its vehicle information infixed time-slot.
GPS navigation system embedded system TDMA UART extending μC/OS-II
Shiping Lou Jianping Xing Gang Chen Dejing Zhang Changqing Li
School of Information Science and Engineering,Shandong University;Navigation Communication Co-system Shandong Police College
国际会议
成都
英文
490-495
2008-01-01(万方平台首次上网日期,不代表论文的发表时间)