无线多媒体传感器网络感知模型与数量估计

Sense Model and Number Estimation of Wireless Multimedia Sensor Networks

针对无线传感器网络的不同应用需求,将其分为4种类型:节点平行于目标平面的延时覆盖、无延时覆盖、节点位于目标平面中的延时覆盖及无延时覆盖.综合考虑节点感知区域和可能感知区域等因素,为每种应用构建了不同的感知模型.围绕不同的感知模型,针对节点部署方式和部署个数进行了分析,并且对结果进行了仿真.结果表明,所提出的的感知模型和部署个数的估计结果正确,且更符合实际应用需求.

Aiming at different application needs, this paper presents a classification taxonomy, in which these applications are fallen into 4 categories： Delayed coverage of sensor being higher than or in target region, non-delayed coverage of sensor being higher than or in target region. Taking factors of sense regions and possible ones into account, it proposes different sensing models depending on different applications. Based on the above mentioned, themodels and nodes deployment methods are analyzed. The results indicate that the proposed sensing models and estimation methods agree with actual application than previous approaches.