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Action detecting and identifying method based on radio signals

A wireless signal and motion detection technology, applied in character and pattern recognition, instruments, computer components, etc., to achieve strong anti-interference ability and good recognition effect

Active Publication Date: 2015-09-30
NANJING UNIV
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AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is: to propose a motion detection and motion recognition method based on wireless signals, aim at the weakness of existing wireless signal motion recognition technology, solve how to obtain reliable wireless signals through general wireless equipment, and achieve better performance in different environments. The problem of high recognition efficiency

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  • Action detecting and identifying method based on radio signals
  • Action detecting and identifying method based on radio signals
  • Action detecting and identifying method based on radio signals

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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] The invention utilizes the interference of human body movement on wireless signals, adopts general wireless equipment to collect wireless signal data, performs denoising processing on the data, and extracts features associated with movement speed to identify actions.

[0028] Use one or more general-purpose wireless devices to collect wireless signal data, denoise the wireless data through the correlation of multiple wireless signal data, and extract features related to human motion speed from the wireless data to detect and identify motion . The main technical features are: 1. universal wireless equipment; 2. using correlation to perform denoising processing; 3. moving speed characteristics. The basic steps include: data acquisition, data denoising, data segmentation, feature extraction, model training, and action recognition...

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Abstract

The invention discloses an action detecting and identifying method based on radio signals and relates to the field of radio network and pervasive computing, in particular to an action detecting and identifying method based on radio signals. Radio signals are interfered by means of human actions, a universal radio device acquires radio signal data, and data is subjected to noise removal and characteristic extraction correlated with action speed to identify action. The radio signal data is acquired via one or more universal radio devices, radio data is subjected to noise removal by means of multichannel radio signal data, and characteristics correlated to human action speed can be extracted from the radio data so as to detect and identify the actions. The action detecting and identifying method includes steps of data acquisition, data denoising, data segmenting, characteristic extraction, model training and action identifying.

Description

technical field [0001] The invention relates to the fields of wireless network and pervasive computing, in particular to a method for detecting and identifying motions based on wireless signals. Background technique [0002] Human motion detection and recognition technology is a core technology of ubiquitous computing. With the rapid development of wearable computing, smart home and other industries, the application of various behavior recognition technologies has shown a blowout development situation in recent years. For example, sports monitoring and recording technology based on mobile phones and wristbands can help consumers understand their sports and sleep behaviors, so as to actively change their living habits. The elderly care system with human motion monitoring function can provide fall alarm, life pattern detection and other critical applications for elderly care. In the intelligent security system, behavior recognition technology can also be used to judge whethe...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06F2218/06G06F2218/08G06F18/20
Inventor 刘向阳王炜
Owner NANJING UNIV
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