A non-contact sensing method for bodybuilding movement monitoring

A motion monitoring, non-contact technology, applied in sports accessories, instruments, gymnastics equipment, etc., can solve the problems of inability to know the direction of speed, inability to know exercise type, exercise status, and inability to realize fine-grained fitness exercise type identification, etc.

CN108815824BActive Publication Date: 2020-03-24PEKING UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-03-24

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Abstract

The application discloses a non-contact fitness exercise monitoring method. This aspect includes using a receiving device having at least two antennas to simultaneously receive signals from a transmitting device having at least one antenna in a wireless transmission manner; measuring channel state information (CSI) of the wireless transmission, and by processing the CSI, obtaining a CSI signal stream, Doppler velocity flow and Doppler displacement flow; cutting motion based on obtained Doppler displacement flow; cutting motion based on said, from CSI signal flow, Doppler velocity flow and Doppler displacement flow Extracting classification features; classifying the exercise based on the classification features, thereby determining the type of fitness exercise.
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Description

technical field

[0001] The invention relates to a fitness exercise monitoring technology, in particular to a non-contact fitness exercise monitoring method based on commercial wireless local area network equipment. Background technique

[0002] Unarmed fitness is not borrowing any equipment and tools for fitness activities, and uses your own body as a weight-bearing exercise, such as sit-ups, squats, push-ups, etc. Non-contact bodybuilding movement monitoring refers to the precise monitoring of the bodybuilder's bodybuilding movement without any contact with the equipment, and gives feedback and evaluation of the movement situation, such as exercise type, Indexes such as exercise volume and movement standard degree. At present, wireless local area network (WiFi) devices such as mobile phones, tablet computers, laptops, and smart watches have widely existed in our daily life. If commercial WiFi devices are used to realize contactless physical fitness monitoring, exercisers w...

Examples

Embodiment Construction

[0060] Below in conjunction with accompanying drawing, further describe the present invention through embodiment, but do not limit the scope of the present invention in any way.

[0061] Such as figure 1 The shown Wi-Fi fitness monitoring system built according to the non-contact sensory fitness exercise (for example, fitness exercise under bare hands or simple weight-bearing situation) monitoring method proposed by the present invention, the mobile phone is the transmitting device of the transmitter, and the tablet computer is the receiver. The receiving device at the end (the wireless network card of the mobile phone supports three antenna ports, any two can be used here), and the desktop is a signal processing server (or cloud)). A kind of non-contact sensing fitness exercise monitoring method provided by the present invention can realize real-time, non-contact exercise monitoring by using a commercial WiFi network card, and the specific implementation method includes the f...