Node positioning method, device and equipment of wireless network, and storage medium

Abstract

The invention discloses a node positioning method, device and equipment of a wireless network, and a storage medium. The method comprises the following steps of: respectively calculating distances from a node to be positioned to at least four wireless access points to the node to be positioned according to signal intensity, and establishing a position objective function of the node to be positioned based on an improved trilateral positioning algorithm according to the distance from the node to be positioned to each wireless access point; optimizing a solution of the position objective function based on an improved universal gravitation algorithm to obtain the position of the node to be positioned, wherein the improved universal gravitation algorithm is obtained by introducing a group reverse learning mechanism, an elite strategy and global memorability on the basis of the universal gravitation algorithm to improve the universal gravitation algorithm. The position objective function is determined through adopting the improved trilateral positioning technology, the optimal solution of the position objective function is solved through adopting the improved universal gravitation algorithm, the positioning precision and speed can be improved, and a scientific and efficient method is provided for high-quality positioning.

Description

technical field [0001] The present invention relates to the field of network technology, in particular to a wireless network node positioning method, device, equipment and storage medium. Background technique [0002] The simplest method for wireless sensor network positioning is to load each node with a GPS receiver to determine the position of the node. However, due to economic factors, node energy constraints, and GPS's requirements for the deployment environment, the feasibility of the scheme is poor. Therefore, generally only a small number of nodes obtain their own coordinates by loading GPS or by pre-deploying in a specific location. In addition, with the development of wireless communication technology and the improvement of data processing capabilities, location-based services have become one of the most promising Internet services. Whether mobile is in indoor or outdoor environments, the demand for quickly and accurately obtaining node location information and pr...

AI Technical Summary

Problems solved by technology

[0004] Various aspects of the present invention provide a wireless network node positioning method, device, equipment and storage medium, which can solve the problem of slow positioning speed existing in the wireless network node positioning algorithm in the prior art

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