面向突发事件现场监测的全向感知无线多媒体传感器网络

项目名称： 面向突发事件现场监测的全向感知无线多媒体传感器网络

项目编号： No.61471110

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 无线电电子学、电信技术

项目作者： 张云洲

作者单位： 东北大学

项目金额： 75万元

中文摘要： 突发事件现场监测是国内外高度关注的热点和难点问题，新兴的无线多媒体传感器网络（WMSN）提供了极具前途的解决方法。然而，受限于有向感知特性，WMSN很难在突发事件现场部署和使用。本项目引入多摄像机构建全向WMSN感知节点，克服常规有向节点的缺陷，构建面向突发事件现场监测的WMSN网络。项目研究多摄像机节点全向视图生成，依据任务和精度的要求确定感知距离，融合标量传感器与视觉感知构建WMSN节点模型；研究WMSN节点状态分级，结合工作时序及状态转移概率建立能耗预测模型；研究给定覆盖率与工作寿命条件下的WMSN节点快速部署方法，采用移动信标点实现WMSN节点位姿的快速标定；在动态背景下目标检测算法研究的基础上，研究能量有效的运动目标多节点协同跟踪算法实现能量均衡和准确跟踪，进而结合WMSN网络拓扑构建现场态势图。项目的目标是实现突发事件现场监测领域的WMSN理论与技术突破，形成可行的解决方案。

中文关键词： 多媒体传感器网络；全向感知；节点部署；协同跟踪；现场监测

英文摘要： Field surveillance of emergent events is a highly-focused hotspot and difficult point at home and abroad. As a newly emerging subject, wireless multimedia sensor network(WMSN) can provide very promising solution. However, WMSN is hard to be deployed and used at the emergent field due to its directional sensing property. In this project, multiple cameras are introduced to build the omni-directional WMSN, which can solve the limitation of ordinary directional sensor node and be used to make the surveillance network for emergent events. In this project, the omni-vision of multiple cameras will be researched. With the sensing distance decided by specific duty and accuracy requirement, the sensing model of omni-WMSN node can be acquired by fusing the scale sensor and vision sensing. Through proper classification of active level for WMSN node, the energy consumption model will be built on the basis of working sequence and status-shift probability. We aill research the rapid deployment method of the WMSN nodes under the given coverage ratio and working life. The moving anchor node is employed to rapidly calibrate the pose and angle of the WMSN node. Target detection algorithm will also be researched under the dynamic background. To achieve the energy balance and accurate tracking, we will design energy efficient strategy for moving target tracking through nodes collaboration. Combining with the event acquisition, the dynamic situation map can be built with the WMSN network topology. The aim of this project is to make a breakthrough of WMSN theory and technique in the field surveillance of emergent events and supply a feasible solution.

英文关键词： Wireless multimedia sensor network;Omni-directional sensing;Node deployment;collaborative tracking;Field surveillance