具有盲区的有向视觉传感器网络连通保持覆盖控制  

Directed vision sensor network with blind spots keeps connected and maintains coverage control

作　　者：董鑫 李晓丽[1] 富锦芸 Dong Xin;Li Xiaoli;Fu Jinyun(School of Information Science&Technology,Donghua University,Shanghai 201620,China)

机构地区：[1]东华大学信息科学与技术学院,上海201620

出　　处：《计算机应用研究》2021年第10期3137-3142,共6页Application Research of Computers

基　　金：上海市自然科学基金资助项目(16ZR1446700);上海市浦江人才计划资助项目(18PJ1400100);2020年中央高校基本科研业务费专项基金资助项目(20D110425)。

摘　　要：针对有向视觉传感器网络在保持连通性的前提下使网络覆盖面积最大化的问题,提出了装有鱼眼镜头的传感器网络连通保持覆盖控制策略。首先建立单个有向视觉传感器节点的数学模型和覆盖性能函数,然后确定了链式连通保持策略,该策略通过对比节点左右两侧的覆盖强度Hl(z)和Hr(z)确定运动方向,使网络向外扩散;又通过控制器,使得约束节点的转动角度不超过最大转动角Δθij,运动步长不会走出链接点■i的视野半径RS,从而确保整个网络的连通性。最后,通过仿真结果表明,该控制策略可以使得传感器网络覆盖面积最大化,并始终保持网络拓扑的连通性,说明了该方法的有效性。Aiming at the problem of maximizing the network coverage area of the directed vision sensor network while maintaining connectivity of the network topology, this paper proposed the strategy of connectivity and coverage control of sensor networks equipped with fisheye lenses. Firstly, this paper established the mathematical model and coverage performance function of a single directed vision sensor. Then, it determined the chain connection maintenance strategy. The strategy determined the direction of movement by comparing the coverage strength of the left and right sides of the node Hl(z) and Hr(z), so that the network spread outward. Then through the controller, the rotation angle of the node was restricted not to exceed the maximum rotation angle Δθij, and the movement step length did not go out of the field of view radius RS of the link point ■i. Therefore,it ensured the connectivity of the entire network. Finally, the simulation results show that the control strategy can maximize the coverage area of the sensor network and always maintain the connectivity of the network topology, which shows the effectiveness of the method.

关 键 词：有向视觉传感器 视觉盲区 连通保持 覆盖 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]