导航监控一体化系统中数据流传输控制算法研究

¹武汉大学测绘遥感信息工程国家重点实验室,武汉市珞喻路129号430079;²天津理工大学环境科学与安全工程学院,天津市红旗南路263号300191;³武汉大学交通研究中心,武汉市珞喻路129号,430079

基金项目: 湖北省自然科学基金计划创新群体资助项目(2006ABC010)

详细信息

An Algorithm for Data Stream Transmission Control in Vehicle Navigation and Monitoring Incorporate System

¹State Key Laboratory for Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,129 Luoyu Road,Wuhan 430079,China;²School of Environmental Science and Safety Engineering,Tianjin University of Technology,263 South Hongqi Road,Tianjin 300191,China;³Research Center of Transportation,Wuhan University,129 Luoyu Road,Wuhan 430079,China

Funds: 湖北省自然科学基金计划创新群体资助项目(2006ABC010)

摘要: 提出了车载端数据流传输控制模型及算法,探讨了算法中涉及的速度变化量和方向变化量的判断条件,给出了监控中心数据恢复的方程。试验结果表明,车载端数据流传输控制算法效果明显,数据传输率仅有3.6%,而且监控中心数据恢复后能够很好地逼近原始GPS轨迹。
- 导航监控一体化 /
- 数据流 /
- 传输控制 /
- 速度变化量 /
- 方向变化量
Abstract: The model and algorithm of data stream transmission control in the vehicle terminal are put forward.The changing quantity of speed and the changing quantity of direction act as condition of judgment in the algorithm.The judgment criterion is discussed and the equation of data recovery in the monitoring center is proposed.The experimental result shows that the algorithm has an excellent effect on data transmission rate,and the data stream transmission control in vehicle terminal reduces the data transmission rate to only 3.6%.In addition,the recovered data can approach the original GPS trajectories in the monitoring center.
- vehicle navigation and monitor incorporate system /
- data stream /
- transmission control /
- changing quantity of speed /
- changing quantity of direction