摘要
针对将远程监控扩展到移动网络时存在的移动设备计算和显示能力、移动网络数据传输能力的瓶颈,提出了使用MPEG-4视频压缩结合尺寸压缩的数据压缩方案,充分降低了网络数据流量,减轻了移动终端的渲染计算压力;提出了考虑移动设备计算能力的基于反馈机制的自适应网络传输策略以解决累积延时效应,在数据传输速度与变化的移动网络带宽和移动设备性能之间构建动态平衡,保证移动监控的实时性。通过原型系统的测试,证明该方案可充分降低网络流量、保证监控的实时性,同时具有一定的普适性。
Mobile remote monitoring always encounters bottlenecks such as lack of computing capacity of mobile devices and low bandwidth of mobile network. This paper proposed a series of solutions：a）＂ data compression＂ based on both stream video compression and image size compression to reduce network traffic ; b）＂ adaptive transmission strategy＂ considering mobile de- vice computation and mobile network bandwidth to solve the effect called cumulative delay. Based on the above technology, programmed and tested a prototype. Result shows that it achieves real-time monitoring based on relatively low network traffic.
出处
《计算机应用研究》
CSCD
北大核心
2009年第10期3798-3800,3803,共4页
Application Research of Computers
基金
国家"863"计划资助项目(2007AA01Z318
2006AA01Z334)
博士后科学基金资助项目(20080440255)
关键词
移动
远程监控
实时性
数据压缩
mobile
remote monitoring
real-time
data compress
