Gesture recognition system and method based on muscle electrical impedance signals
A technology of gesture recognition and electrical impedance, which is applied in the field of gesture recognition systems, can solve the problems of increased difficulty in hardware and software design of wearable devices, easy acquisition by external interference, and complex processing processes, etc., to achieve simple preprocessing, high sensitivity, good robustness
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[0048]In this embodiment, when working, put the device at the correct position of the forearm, adjust the main control module, inject the AC signal through the constant voltage source module, and use the amplitude and phase detection circuit to measure the input voltage signal and the voltage at both ends of the reference resistor The attenuation value and phase difference of the signal, the AD module samples and transmits the data to the host computer through the Bluetooth module. Perform data preprocessing and model training on the host computer. A series of EIM signals of different gestures are collected as the training set, and the impedance mode and phase are normalized as the two inputs of the network, and a classification model is built in the host computer for training. During real-time recognition, the impedance information of different gestures is collected in real time, and the trained classifier model is used to classify them, and the results are displayed on the h...
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