Hop-based wireless sensor network node positioning method and system

A wireless sensor and network node technology, applied in wireless communication, network topology, electrical components, etc., can solve problems such as large errors
CN103167609AInactive Publication Date: 2013-06-19SUZHOU UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
SUZHOU UNIV
Publication Date
2013-06-19
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a hop-based wireless sensor network node positioning method and a hop-based wireless sensor network node positioning system. The method comprises the following steps of: 1, broadcasting for the first time by each anchor node, and transferring the coordinate and hop information of each anchor node to the whole network in a flooding mode; 2, calculating average hop distance in the network according to the positions of each anchor node and other anchor nodes and hop intervals; 3, broadcasting for the second time by each anchor node, and continuously transferring a correction value in the network; and 4, calculating the coordinate of an unknown node by using a least square method. According to the invention, inter-node distance information is not required to be measured. The method and the system are low in sensor node complexity requirement and low in positioning cost. The positioning method also belongs to distributed positioning algorithms and is suitable for the practical application of a large-scale wireless sensor network.
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Description

technical field

[0001] The invention relates to the technical field of wireless sensor networks, in particular to a hop count-based wireless sensor network node positioning method and system. Background technique

[0002] The Wireless Sensor Network (WSN: Wireless Sensor Network) is listed as the top ten emerging technologies that will change the future world by MIT Technology Review. The American "Business Weekly" predicts that WSN will set off a new industrial wave in the near future. According to the survey report on foreseeing technology in the next 20 years, 7 of the technical topics in the information field are directly related to WSN. It is directly related to the research of WSN, that is, intelligent perception technology and self-organizing network technology, which have broad market application prospects.

[0003] In a wireless sensor network, the collected sensory information has practical application value only if the coordinate position is known, so the problem...

Claims

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