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Indoor wireless positioning method and device for noise environment

An indoor wireless and positioning method technology, applied in positioning, measuring devices, radio wave measuring systems, etc., can solve problems such as inability to complete noise self-adaptation and poor positioning accuracy

Active Publication Date: 2020-10-27
INST OF INFORMATION ENG CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an indoor wireless positioning method and device for noisy environments, which can solve the actual deployment problems of current target tracking methods such as inability to complete noise adaptation and poor positioning accuracy in resource-constrained environments

Method used

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  • Indoor wireless positioning method and device for noise environment
  • Indoor wireless positioning method and device for noise environment
  • Indoor wireless positioning method and device for noise environment

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Embodiment Construction

[0057] In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail in conjunction with the accompanying drawings. The given examples are only used to explain the present invention, not to limit the scope of the present invention.

[0058] In the indoor wireless positioning method oriented to the noise environment of this embodiment, its flow is as follows figure 1 shown, including the following steps:

[0059] 1. Data collection and data preprocessing

[0060] Input the wireless network data packet obtained in the k time period, use the channel state information processing tool to extract the data from the wireless network data packet, and select the link data of the valid time period.

[0061] In this embodiment, three antennas are used as receiving antennas, that is, wireless signal receiving devices, which are placed in an isosceles triangle. When the experimental da...

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Abstract

The invention relates to an indoor wireless positioning method and an indoor wireless positioning device for noise-oriented environments. The method comprises the following steps: 1) deploying wireless signal receiving modules to acquire wireless signal data; 2) performing adaptive estimation of measurement noise and process noise on the wireless signal data to obtain feature data of the signals;3) normalizing the feature data, converting the channel state information data into feature map data; 4) inputting the feature map data into a plurality of multi-layer residual neural networks to obtain an output vector respectively; and 5) averaging the output vectors of the respective residual neural networks, finding the maximum value of response, and obtaining the predicted final position after performing data recovery on the maximum value of response. The indoor wireless positioning method and an indoor wireless positioning device for noise-oriented environments provided by the inventioncan solve the practical deployment problems that the current target tracking method cannot complete noise adaptation and the positioning accuracy is poor in a resource-constrained environment, and issuitable for object location and tracking problem in the fields of robots, unmanned vehicles, drones, information push, security and the like.

Description

technical field [0001] The invention relates to the fields of information communication and signal processing, in particular to an indoor wireless positioning method and device for noisy environments. Background technique [0002] When the satellite positioning reaches the ground, the signal is weak, and the weakening is serious after penetrating through the building. Therefore, the positioning effect of the global positioning system for indoor objects is poor. Indoor positioning technology can be viewed as an aid to satellite positioning. Indoor positioning systems have important and extensive applications in virtual reality, fire protection, industrial assembly lines, airport security, drones, advertising push, nursing home management and other scenarios, and have important research significance. Indoor wireless positioning is a common method in indoor positioning. [0003] Due to the limitation of application scenarios (wireless signal attenuation, noise interference, m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S5/02
CPCG01S5/0294
Inventor 葛仕明叶奇挺
Owner INST OF INFORMATION ENG CHINESE ACAD OF SCI
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