Dynamic dormancy dispatching method orienting to target node positioning in wireless sensor network

A wireless sensor and target node technology, applied in the transmission system, comprehensive factory control, comprehensive factory control, etc., can solve the problem of not considering the dynamic sleep scheduling mechanism of mobile nodes, achieve low power consumption, low network operation, and ensure successful positioning The effect of rate and accuracy

Inactive Publication Date: 2008-08-13
BEIHANG UNIV
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Problems solved by technology

However, target tracking focuses on the problem of network coverage, which ensures that the target is covered by enough nodes in the sensing area, and does not consider the dynamic sleep scheduling mechanism of mobile node (or called target node) positioning

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  • Dynamic dormancy dispatching method orienting to target node positioning in wireless sensor network
  • Dynamic dormancy dispatching method orienting to target node positioning in wireless sensor network
  • Dynamic dormancy dispatching method orienting to target node positioning in wireless sensor network

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Embodiment Construction

[0031] The present invention is a dynamic dormancy scheduling method in a wireless sensor network oriented to target node positioning, which deploys multiple wireless sensors in a square monitoring area N L×L(side length is L=100~1000m), the number of stationary anchor nodes in the wireless sensor network is n', and the number of moving target nodes is m' (generally speaking, n'm'). In the application of the present invention, it is assumed that the deployment mode of n' anchor nodes obeys random uniform distribution, that is, the probability of each anchor node being located at any position on the target area is the same, and the probability distributions between them are independent of each other; any target node m b The way of moving is random, and the speed and direction can be changed at any time, assuming that the moving speed of the node does not exceed ν max . target node M b The mobile positioning method adopted is the h-hop type, that is, the method requires the ...

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Abstract

The invention discloses a target-node-location-oriented dynamic sleep scheduling method in wireless sensor networks. The method comprises the steps of: creating a location tree, picking up wakeup anchor nodes and sleep anchor nodes from the location tree; then notifying the surrounding anchor nodes of the target node of a work mode, so that the target node can effectively keep high anchor node connectivity by dynamic sleep scheduling, location success rate and precision of the target node in wireless sensor networks is guaranteed. The massage passing mechanism is dispatching WAKEUP_MSG massage to anchor nodes in the wakeup nodes collection, to keep the wakeup state and enter a full-attendance working way; and dispatching PRUNE_MSG massage to anchor nodes in the sleep anchor nodes collection, to switch to sleep state and enter a low-consumption working way.

Description

technical field [0001] The present invention relates to a low power consumption strategy applicable to wireless sensor networks, in detail, refers to a dynamic dormancy scheduling method in a wireless sensor network oriented to target node positioning, and the dynamic dormancy scheduling method is helpful to improve wireless sensor network positioning accuracy and positioning success rate. Background technique [0002] In recent years, self-localization methods of wireless sensor networks have attracted widespread attention of researchers. At present, the focus of research work is still on how to improve the positioning accuracy of the algorithm, reduce additional hardware requirements, and weaken the negative impact of information delay on mobile node positioning, but does not pay attention to how to dynamically balance the entire network during the mobile node positioning process. Power consumption, reducing positioning costs and prolonging the life of the network. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L12/28G05B19/418
CPCY02P90/02
Inventor 刘玉恒蒲菊华刘国师张硕刘云璐熊璋
Owner BEIHANG UNIV
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