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Multi-person indoor positioning method based on block chain

An indoor positioning and blockchain technology, applied in the field of wireless sensor networks, to improve transmission security, reduce computing and storage loads, and ensure dynamic consistency

Inactive Publication Date: 2019-11-22
SUZHOU JIANGHAI COMM DEV IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The indoor positioning technology based on the central server has the following problems: 1) The problem of safe and reliable transmission between the positioned node and the central server
3) The computing and storage load of the central server

Method used

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  • Multi-person indoor positioning method based on block chain
  • Multi-person indoor positioning method based on block chain
  • Multi-person indoor positioning method based on block chain

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0032] Such as figure 1 As shown, a blockchain-based multi-person indoor positioning method includes the following steps:

[0033] S1. Initialization: arrange several nodes indoors, connect them to the same local area network, and set the initial position of each node;

[0034] S2. Node active positioning: Obtain the location information of the surrounding nodes through the private key, and calculate the received signal strength of the surrounding nodes, and final...

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Abstract

The invention provides a multi-person indoor positioning method based on a block chain, and the method comprises the following steps: S1, initialization: enabling a plurality of nodes to be arranged indoors, connecting the nodes to the same local area network, and setting the initial position of each node; S2, node active positioning: obtaining the position information of surrounding nodes througha private key, calculating the received signal intensity of the surrounding nodes, and finally calculating the self position; and S3, block chain recording: recording the positions of all nodes in the form of a block chain table every time the position information of the nodes is changed. Based on the block chain technology, each node has a non-tampered distributed blockchain table for recordingnode positions, the dynamic consistency of the block chain tables owned by the nodes is ensured, and the position information transmission security of the nodes is improved; the calculation and storage load of the central server is greatly reduced; historical position information can be quickly queried to obtain a moving track of a positioned node, and the positioning accuracy is improved.

Description

technical field [0001] The invention relates to the technical field of wireless sensor networks, in particular to a blockchain-based multi-person indoor positioning method. Background technique [0002] At present, the indoor positioning method using wireless signals needs to rely on the central server to collect wireless signal information of all positioned nodes, and then use the method of constructing fingerprints or using attenuation model distance measurement to achieve positioning. This traditional indoor positioning method is characterized by centralized data processing. Under this architecture, the wireless signal feature information storage, wireless signal analysis and node location information storage of all nodes are all executed in the central server. [0003] The indoor positioning technology based on the central server has the following problems: 1) The safe and reliable transmission between the positioned node and the central server. 2) The location informat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/029H04W4/33H04W12/06H04W64/00H04L9/32H04L29/08H04W12/104
CPCH04W4/029H04W4/33H04W64/006H04L9/3247H04L9/3268H04L67/104H04W12/069
Inventor 戴欢孙素坤张黎周泽仑石鹏展
Owner SUZHOU JIANGHAI COMM DEV IND
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