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A CSI-based method for counting human continuous movements

A counting method and technology of human body movements, applied in computing, computer components, instruments, etc., can solve problems such as counting continuous human body movements that have not been proposed, and achieve the effects of low cost, easy deployment, and strong scalability

Active Publication Date: 2020-05-15
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional action recognition method simply classifies and recognizes actions, and does not propose the calculation of the time point of the action and the counting of the continuous actions of the human body.

Method used

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  • A CSI-based method for counting human continuous movements
  • A CSI-based method for counting human continuous movements
  • A CSI-based method for counting human continuous movements

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 As shown, the present invention provides a CSI-based human body continuous motion counting method for a human body continuous motion counting and recognition system including a transmitter and a receiver equipped with a wireless network card, wherein the transmitter is a router, and the transmitter is provided with N t An antenna on the transmitting end, a computer with a wireless network card equipped with a CSI tool kit inside the receiver, a CSI information reading interface on the receiver, and a N on the receiver r A receiving end antenna, the human body continuous motion counting method includes the following steps

[0037] Step 1. Signal collection: When the human body is in the above-mentioned human body continuous motion counting and recognition system, read the CSI information file generated by the human body motion file within T time through the CSI information reading interface of the receiver, and generate the human body motion file within T...

Embodiment 2

[0056] The difference from Example 1 is that, see figure 2 as shown,

[0057] Also includes step five, extracting action features:

[0058] Will Z t，r In the waveform file to be calculated after smoothing, record the time interval between two adjacent peaks, and then according to the recorded time interval, obtain the time series of multiple actions in the human body action file within T time, and then according to For this time series, intercept the HP t，r In (2), the output waveforms corresponding to the corresponding time series are subjected to wavelet transformation on the output waveforms corresponding to all the intercepted time series to obtain the action waveform of each movement of the human body within T time, and the action waveform is the action produced by the human body feature;

[0059] Step 6: Action Classification:

[0060] According to the multiple motion waveforms of the human body's motions within T time obtained in step 5, match with the preset moti...

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Abstract

The invention relates to a CSI-based method for counting human body continuous motions, which is used in a human body continuous motion counting and recognition system including a transmitter and a receiver equipped with a wireless network card, wherein the transmitter is a router, and the transmitter is equipped with a N t The transmitter antenna, the receiver is equipped with a CSI tool kit, the receiver is equipped with a CSI information reading interface, and the receiver has a N r The receiving end antenna is characterized in that: comprising step one signal acquisition; step two action detection; step three, preprocessing; step four, action counting, using the peak-to-peak algorithm to detect the number of peaks of the wave file to be calculated, and detecting the The number of peaks is used as the number of actions contained in the human action file within T time, and is output. Compared with the prior art, the present invention has the advantage that no special equipment is required, such as sensors, cameras, etc., only need wireless signals that can be seen everywhere to realize the method proposed by the present invention, and the cost is low and easy to deploy, so it has strong scalability.

Description

technical field [0001] The invention relates to a method for counting continuous movements of a human body based on CSI. Background technique [0002] Human behavior and action recognition refers to the classification and recognition of human behavior and actions by measuring certain signal data generated when the human body performs various actions, and according to a certain algorithm. [0003] Existing methods for traditional action recognition include: (1) Based on computer vision: collect human action action image sequences through cameras, use computer vision computing methods to extract image features, and perform action classification. This method is accurate in recognition, but it has a large amount of calculation and is easily affected by factors such as light and line-of-sight propagation. It can only be perceived within a specific range that the camera can illuminate. (2) Sensor-based: By installing special sensors and other equipment, such as acceleration senso...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/62
CPCG06V40/20G06F18/2135G06F18/24
Inventor 刘希文陈海明
Owner NINGBO UNIV