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传感节点的自定位是整个无线传感网络有效运行的基础。基于移动锚节点的节点定位算法有着成本低、灵活性好、精度高的特点,可以有效解决节点的自定位问题,引起了广泛的关注。该算法面临着锚节点路径规划这一关键问题。合理的路径规划可以在确保定位率的前提下减少路径长度。随着近年来研究的深入,许多相应的路径规划算法被提出。文章首先提出了相应的评估准则,然后依次介绍了随机移动模型,静态路径规划模型和动态路径规划模型,并分析了各种方法的优缺点。最后进行了总结,并探讨了未来可能的研究方向。
Sensor node self-positioning is the basis for the effective operation of the entire wireless sensor network. The node localization algorithm based on mobile anchor node has the characteristics of low cost, good flexibility and high precision, which can effectively solve the problem of self-localization of nodes and has aroused widespread concern. The algorithm faces the key problem of anchor node path planning. Reasonable path planning can reduce the path length while ensuring the positioning rate. With the deepening of research in recent years, many corresponding path planning algorithms have been proposed. Firstly, the article puts forward the corresponding assessment criteria, and then introduces the stochastic moving model, the static path planning model and the dynamic path planning model in turn, and analyzes the advantages and disadvantages of various methods. Finally, the paper summarizes the possible research directions in the future.