Personnel behavior detection method, device and terminal device
A detection method and behavior technology, applied in character and pattern recognition, transmission monitoring, instruments, etc., can solve the problems of poor signal time stability, low detection rate of human behavior, etc., to improve precision and accuracy, reduce noise, and improve accuracy. degree of effect
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Embodiment 1
[0051] see figure 1 A schematic diagram of the implementation flow of an embodiment of the personnel behavior detection method is provided, and the details are as follows:
[0052] Step S101, receiving a wireless signal reflected by a human body, and acquiring a CSI time series of the wireless signal.
[0053] Optionally, this embodiment adopts MIMO (Multiple-Input Multiple-Output) technology, that is, the wireless signal transmitting end and the receiving end respectively use multiple transmitting antennas and multiple receiving antennas to acquire multiple wireless signals , that is, the CSI time series of the received wireless signal can be obtained in an all-round way, and the characteristics of the channel state information in the CSI time series can be further analyzed to reduce the misjudgment rate of human behavior and improve the detection accuracy.
[0054] Optionally, the CSI time series is acquired by using an Atheros series network card or an Intel5300 network ca...
Embodiment 2
[0133] Corresponding to the personnel behavior detection method described in the first embodiment above, Figure 8 shows a structural block diagram of the personnel behavior detection device in Embodiment 2 of the present invention. For ease of description, only the parts related to this embodiment are shown.
[0134] The device includes: an information acquisition module 110 , a feature extraction module 120 and a behavior recognition module 130 .
[0135] The information obtaining module 110 is used for receiving the wireless signal reflected by the human body, and obtaining the CSI time series of the wireless signal.
[0136] The feature extraction module 120 is configured to preprocess the CSI time series, and perform feature extraction on the preprocessed CSI time series to obtain human behavior features.
[0137] The behavior recognition module 130 is used to input the human behavior characteristics into a classifier for classification, and determine the human behavior...
Embodiment 3
[0140] Figure 9 It is a schematic diagram of the terminal device 100 provided in Embodiment 3 of the present invention. Such as Figure 9 As shown, the terminal device 100 of this embodiment includes: a processor 140, a memory 150, and a computer program 151 stored in the memory 150 and operable on the processor 140, such as a program of a method for detecting human behavior. When the processor 140 executes the computer program 151, it implements the steps in the embodiment of the above-mentioned personnel behavior detection method, for example figure 1 Steps 101 to 103 are shown. Alternatively, when the processor 140 executes the computer program 151, it realizes the functions of the modules / units in the above-mentioned device embodiments, for example Figure 8 The functions of modules 110 to 130 are shown.
[0141] Exemplarily, the computer program 151 can be divided into one or more modules / units, and the one or more modules / units are stored in the memory 150 and execu...
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