《计算机应用研究》|Application Research of Computers

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

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作者 董鑫,李晓丽,富锦芸
机构 东华大学 信息科学与技术学院,上海 201620
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文章编号 1001-3695(2021)10-045-3137-06
DOI 10.19734/j.issn.1001-3695.2021.01.0028
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<i>H<sub>l</sub>(z)和H<sub>r</sub>(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</i>Δ<i>θ<sub>ij</sub>,运动步长不会走出链接点<sub>i</sub>的视野半径R<sub>S</sub>,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</i>络拓扑的连通性,说明了该方法的有效性。
关键词 有向视觉传感器; 视觉盲区; 连通保持; 覆盖
基金项目 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)
本文URL http://www.arocmag.com/article/01-2021-10-045.html
英文标题 Directed vision sensor network with blind spots keeps connected and maintains coverage control
作者英文名 Dong Xin, Li Xiaoli, Fu Jinyun
机构英文名 School of Information Science & Technology,Donghua University,Shanghai 201620,China
英文摘要 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 <i>H<sub>l</sub>(z</i>) and <i>H<sub>r</sub>(z</i>), 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 Δ<i>θ<sub>ij</i></sub>, and the movement step length did not go out of the field of view radius <i>R<sub>S</sub></i> of the link point <i><sub>i</sub></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.
英文关键词 directed vision sensor; visual blind zone; connectivity maintenance; coverage
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收稿日期 2021/1/10
修回日期 2021/3/1
页码 3137-3142
中图分类号 TP393
文献标志码 A