针对WMSN图像传输能耗优化方法的技术研究  

Research on Energy Consumption Optimization Method of the Image Transmission for WMSN

作　　者：任燕[1] 

机构地区：[1]青岛酒店管理职业技术学院,青岛266100

出　　处：《科技通报》2013年第3期158-161,175,共5页Bulletin of Science and Technology

摘　　要：建立了井下安全监控系统,采用无线多媒体传感器网络(WMSN)来构建。针对WMSN图像传输能耗大的问题,提出了利用节点协同的方式进行图像传输,并且在图像压缩编码上采用了改进型JPEG2000算法。仿真结果表明,减小量子化层级即可降低图像压缩能量的损耗;节点协同方式下的图像传输能耗最小,网络运行周期最长。在环境监控、危险预警等方面具有广阔的应用前景。The paper established the mine safety monitoring system based on wireless multimedia sensor networks（WMSN）. According to the problems of excessive energy consumption of image transmission in WMSN,proposed the approach of node collaborative to transfer image,and used improved JPEG2000 algorithm in image compression code.The simulation results showed that the image compression energy consumption could be reduced by less quantization levels;the energy consumption of image transmission was less and the network operation cycle was longer than others on the node collaborative mode.The technology had broad application prospects in environmental monitoring and early warning.

关 键 词：井下安全监控系统 无线多媒体传感器网络 图像传输 改进型JPEG2000 能耗 

分 类 号：TN919.8[电子电信—通信与信息系统]