Wireless sensor network all-moving node positioning method based on RSSI

A wireless sensor and node positioning technology, which is applied in the directions of location-based services, positioning, radio wave measurement systems, etc., and can solve problems such as node positioning that cannot be solved.
CN105223549AActive Publication Date: 2016-01-06NORTHEAST DIANLI UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NORTHEAST DIANLI UNIVERSITY
Publication Date
2016-01-06

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Abstract

The invention relates to a wireless sensor network all-moving node positioning method based on an RSSI. An existing range-based positioning algorithm is usually used for static node positioning or is used for the condition that partial nodes are moving and partial nodes are static, the RSSI range-based positioning algorithm has not been used for node positioning under the condition that all of anchor nodes and unknown nodes are in a moving state, and the existing algorithm fails to realize node positioning under the condition that the number of the anchor nodes is less than 3. The invention aims to overcome the defects of the prior art and provides the wireless sensor network all-moving node positioning method based on the RSSI. According to the invention, when the unknown nodes are in communication with four, three, two and one anchor node, different algorithms are adopted to obtain the positions of the unknown nodes.
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Description

Technical field

[0001] The invention relates to a method for locating network nodes, in particular to a method for locating all mobile nodes in a wireless sensor network based on RSSI. Background technique

[0002] Wireless sensor networks (wireless sensor networks, WSN) is a multi-hop self-organizing network system formed by a large number of inexpensive micro sensor nodes deployed in the monitoring area. The purpose is to cooperatively sense, collect and process the network. The information of the sensing object in the coverage area is sent to the observer.

[0003] In the sensor network, location information is very important to the monitoring activities of the sensor network. The location where the event occurs or the location of the node where the information is obtained is the important information contained in the sensor node monitoring message. Therefore, it is one of the most basic functions of sensor network to determine the location of an event or the node location to o...

Claims

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