Locating method of wireless network terminal based on wheel-shaped diaphragms

A wireless network terminal and positioning method technology, applied in the field of wireless ad hoc networks and sensor networks, can solve the problems of trilateral measurement method with limited capability and large communication overhead, and achieve the goal of avoiding communication overhead, compressing search space, and high execution efficiency Effect

Active Publication Date: 2011-08-03
北京凯华信业科贸有限责任公司
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AI Technical Summary

Problems solved by technology

[0012] However, whether it is three-connected or redundant rigidity, a centralized algorithm is required to distinguish
Centralized algorithms need to collect all network information to a central server, which usually brings huge communication overhead
However, the distributed trilateration method has limited capabilities and can only identify a part of the locatable nodes.

Method used

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  • Locating method of wireless network terminal based on wheel-shaped diaphragms
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  • Locating method of wireless network terminal based on wheel-shaped diaphragms

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Embodiment Construction

[0050] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0051] Image 6 The flow chart of the positioning method of the wireless network terminal based on the wheel diagram of the present invention mainly includes the following steps:

[0052] A positioning method of a wireless network terminal based on a wheel graph, comprising the following steps:

[0053] S101: Obtain a positionable node in a wireless network terminal as a beacon node;

[0054] S102: Select those unknown nodes around the beacon node, and the above unknown nodes are in a neighbor relationship with the beacon node;

[0055] S103: Exchanging state information between the above-mentioned beacon node and the unknown node, and judging whether the unknown node can be located;

[0056] S104: Select those unknown nodes that can be located, and make the above-mentioned unknown nodes and beacon nodes in a wheel graph, and the wheel graph meets the following co...

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Abstract

The invention discloses a locating method of a wireless network terminal based on wheel-shaped diaphragms, belonging to the field of a wireless self-organized network and a sensor network, and comprising the following steps of: (1) acquiring locatable nodes in the wireless network terminal as beacon nodes; (2) selecting unknown nodes around the beacon nodes, wherein the unknown nodes and the beacon nodes are in neighbour relation; (3) carrying out state information exchange among the beacon nodes and the unknown nodes and judging whether the unknown nodes can be located; (4) selecting the locatable unknown nodes and leading the unknown nodes and the beacon nodes to be in one wheel-shaped diaphragm; (5) recognizing and locating the unknown nodes, and simultaneously updating the node state to be beacon nodes; and (6) repeating the steps (1)-(5), till all the node information of the wireless network terminal is not updated. In the node locating method disclosed by the invention, more network nodes can be successfully positioned.

Description

technical field [0001] The invention belongs to the field of wireless ad hoc networks and sensor networks, and relates to a wireless network positioning technology, which is used for positioning a wireless network terminal to finally calculate the specific position and information of each node of the wireless network terminal. Background technique [0002] With the rapid development and maturity of communication technology, sensor technology and embedded computing technology, miniature sensor nodes with communication, sensing and computing capabilities begin to appear and are gradually applied to production and life. This sensor network can coordinately perceive, collect and process various environmental or monitoring object information in the network coverage area, and release it to users who need this information. The sensor network integrates the logical information world and the real physical world, profoundly changing the way of interaction between man and nature, and c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00H04W84/18
Inventor 杨铮刘云浩何源李向阳
Owner 北京凯华信业科贸有限责任公司
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