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Indoor positioning method, device and system

An indoor positioning and positioning area technology, applied in positioning, measuring devices, neural learning methods, etc., can solve the problems of reduced positioning accuracy, high price, LED positioning technology interference, etc., to improve positioning accuracy and reduce signal fluctuations. Effect

Pending Publication Date: 2022-07-15
STATE GRID ELECTRIC POWER RES INST +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the commonly used positioning methods at this stage have more or less defects.
WiFi fingerprint positioning will be limited by the size of the indoor space, too large space will lead to a decrease in positioning accuracy; although UWB ultra-wideband technology is centimeter-level, it is expensive and not economical; LED positioning technology will be interfered by indoor light sources , not suitable for large area laying

Method used

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  • Indoor positioning method, device and system
  • Indoor positioning method, device and system
  • Indoor positioning method, device and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] The present invention provides an indoor positioning method, such as figure 1 shown, including the following steps:

[0074] Step (1) obtains offline coordinate fingerprint databases corresponding to different positioning areas, and each offline coordinate fingerprint database includes reference point coordinates and corresponding RSSI values;

[0075] Step (2) respectively train the DAE model and the RNN model based on the data in each offline coordinate fingerprint database;

[0076] Step (3) judges the location area where the point to be located is located, and filters out the DAE model and the RNN model trained corresponding to the location area;

[0077] Step (4) Obtain the RSSI value of the point to be located, and send it to the selected DAE model and RNN model in turn, and calculate the coordinates of the point to be located.

[0078] In a specific implementation of the embodiment of the present invention, the method for obtaining the offline coordinate finger...

Embodiment 2

[0147] Based on the same inventive concept as Embodiment 1, the embodiment of the present invention provides an indoor positioning device, including:

[0148] The acquisition module is used to acquire offline coordinate fingerprint libraries corresponding to different positioning areas, and each offline coordinate fingerprint library includes reference point coordinates and corresponding RSSI values;

[0149] The training module is used to train the DAE model and the RNN model respectively based on the data in each offline coordinate fingerprint library;

[0150] The screening module is used to determine the positioning area where the to-be-located point is located, and screen out the trained DAE model and RNN model corresponding to the positioning area;

[0151] The positioning module is used to obtain the RSSI value of the to-be-located point, and send it to the selected DAE model and RNN model in turn to calculate the coordinates of the to-be-located point.

[0152] Option...

Embodiment 3

[0171] Based on the same inventive concept as Embodiment 1, the embodiment of the present invention provides an indoor positioning device, including: a plurality of light sources, a signal transmitter and a signal receiver, and a positioning unit;

[0172] Each light source is installed in different positioning areas, the light source frequencies of the light sources located in the same positioning area are the same, and the light source frequencies of the light sources in different positioning areas are different;

[0173] Each positioning area is provided with a reference point and an AP point, the signal receiver is set at the reference point and the to-be-located point, and the signal transmitter is set at the AP point;

[0174] The trained DAE models and RNN models corresponding to different positioning areas are stored in the positioning unit; the trained DAE models and RNN models are obtained based on data training in the offline coordinate fingerprint database correspon...

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Abstract

The invention discloses an indoor positioning method, device and system, and the method comprises the steps: obtaining offline coordinate fingerprint libraries corresponding to different positioning regions, each offline coordinate fingerprint library comprising a reference point coordinate and an RSSI value corresponding to each reference point; respectively training a DAE model and an RNN model based on the data in each offline coordinate fingerprint database; judging a positioning area where a to-be-positioned point is located, and screening out a trained DAE model and a trained RNN model corresponding to the positioning area; and obtaining an RSSI value of a to-be-positioned point, sequentially sending the RSSI value to the screened DAE model and the RNN model, and calculating a coordinate of the to-be-positioned point. According to the method, area positioning is carried out firstly, then accurate position positioning is carried out by combining fingerprint positioning and the neural network, and environmental interference can be effectively resisted.

Description

technical field [0001] The invention belongs to the technical field of indoor positioning, and in particular relates to an indoor positioning method, device and system. Background technique [0002] With the improvement of the economic level, the penetration rate of mobile terminals and mobile Internet services in China has reached an unprecedented high, and more and more personalized needs have emerged, among which the demand for indoor positioning is becoming more and more intense. Satellite positioning technology can provide positioning services well in outdoor environments. However, when positioning indoors, since the satellite signal is weak after reaching the ground, it does not have penetrating power, and the floor information cannot be well judged, so indoor positioning is almost impossible to use satellite positioning. In order to solve the indoor positioning problem well, many types of solutions have been born at home and abroad. At present, several mainstream ind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/02H04W4/021H04W4/33G01S5/02G06N3/04G06N3/08
CPCH04W4/021H04W4/33H04W4/023H04W4/025G01S5/0252G06N3/08G06N3/045
Inventor 丁忠林犹锋曹委黄忠明吕超邱兰馨朱晟桢孟伟伟何莉媛温家毅胡阳蔡万升蒯本链李军宋乐乐张明于佳臧丽炜宋广千王榕
Owner STATE GRID ELECTRIC POWER RES INST