WSN (wireless sensor network) barrier enhancement method adopting secondary deployment

Abstract

The invention relates to a WSN (wireless sensor network) barrier enhancement method adopting secondary deployment. The method includes the three steps of initial barrier analysis, secondary deployment and barrier enhancement. The initial barrier analysis further includes the following steps that: (1) robustness analysis is performed on initial barriers and enhanced barriers according to a node energy consumption sensing model; and (2) weak point search is carried out according to sensing radius decrease caused by energy consumption. According to secondary deployment, a secondary deployment is provided, static nodes are deployed primarily, the static nodes are utilized to construct barriers, mobile nodes are deployed along the constructed barriers again, and the mobile nodes are utilized to repair or enhance the barriers. According to barrier enhancement, a scheme enabling the sum of the movement distances of the mobile nodes to enhance the weak points of the barriers to be minimum is searched.

Description

Technical field [0001] The present invention mainly relates to the field of wireless sensor network fence coverage, and relates to a secondary deployment WSN fence strengthening method. Background technique [0002] Fence coverage is one of the main coverage models in the field of wireless sensor networks. It mainly studies the problem of being detected when monitoring targets try to cross the deployment area of ​​wireless sensor networks. Since it takes a lot of resources to construct a fence, how to improve the robustness of the fence is a key issue. Fence coverage of wireless sensor networks has a wide range of uses. For example, in the military, the fence can be deployed at the front of the position to detect enemy intrusion. In terms of environmental protection, the deployment of fences around pollution sources can detect the spread of pollutants. In terms of forestry protection, the deployment of fences at the scene of forest fire can detect the spread of the fire. [0003...

AI Technical Summary

Problems solved by technology

[0004] The above methods are all researches on the constructed fences. However, these fences are very fragile. With the consumption of node energy, the perception radius will gradually decrease, and gaps will easily appear in the part of the fence where the node perception range overlaps less.

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