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A Higher Accuracy Indoor Positioning Method

An indoor positioning and precision technology, applied in positioning, service based on location information, service based on specific environment, etc., can solve the problem of difficult and precise positioning, and achieve the effect of convenient positioning, accurate positioning results and wide application range.

Active Publication Date: 2020-11-24
广州华创物联科技股份有限公司
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] In order to overcome the above-mentioned deficiencies, the purpose of the present invention is to provide the field with a higher-precision indoor positioning method based on WIFI technology, so that it can solve the problem that existing similar methods are difficult to accurately locate indoors through WIFI, and the three reference nodes are in Technical Problems of Positioning Method on the Same Line

Method used

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  • A Higher Accuracy Indoor Positioning Method
  • A Higher Accuracy Indoor Positioning Method
  • A Higher Accuracy Indoor Positioning Method

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Embodiment Construction

[0024] Now in conjunction with the accompanying drawings, the structure and use of the present invention will be further described. The indoor positioning method obtains multiple estimated values ​​of the position coordinates of the node to be measured through the position information of three reference nodes located on the same straight line, compares the estimated value with the last coordinate of the node to be measured, and calculates the difference between each estimated value and the previous node. The distance between the position coordinates and an optimal decision-making distance are taken, and a new estimated value is calculated through iteration, and another estimated value of the reference node is calculated from the estimated value and the original two reference nodes. The reference node and the original reference node In comparison, the position where the estimated value of the distance to the optimal point to be measured is located is the final point to be measur...

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Abstract

The invention relates to a high-precision indoor positioning method which is designed to solve a technical problem that it is difficult for conventional similar methods to achieve accurate indoor positioning by WIFI, and a technical problem of a positioning method that three reference nodes are positioned in the same line. The indoor positioning method is based on WIFI indoor positioning technology, and a user of a digital product device moves indoors. The indoor positioning method is characterized by acquiring multiple estimated values of the position coordinates of a node to be tested according to the position information of three reference points located in the same straight line; comparing the estimated values with the previous coordinate of the node to be tested, calculating the distance between each estimated value and the previous position coordinate of the node, taking an optimal distance and calculating a new estimated value by iteration, inversely calculating the estimated value of the other reference node according to the estimated values and the two reference points, comparing the reference node with the original reference node, and taking the position where the estimated value of node to be tested with the optimal distance is the final node to be tested.

Description

technical field [0001] The invention relates to an internal positioning method of wireless technology, which is a relatively high-precision indoor positioning method. Background technique [0002] Location-based services are an essential and important function in people's lives. In the outdoor environment, whether it is the Global Positioning and Navigation System (GPS) of the United States, or the Beidou navigation system newly developed by China, both provide accurate and fast positioning functions. However, in an indoor environment, because the satellite signal is blocked by objects, the wireless signal cannot be transmitted normally, and the navigation function of GPS cannot normally realize the positioning function. At present, the indoor positioning technologies mainly used include wireless positioning technologies such as ultrasonic positioning technology, WIFI positioning technology, radio frequency identification positioning technology and infrared positioning tech...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/029H04W4/33H04W64/00G01S5/14G01C21/20
CPCG01C21/206G01S5/14H04W4/025H04W64/006
Inventor 杨艳华杨海锋
Owner 广州华创物联科技股份有限公司
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