Human body electromyographic signal virtual shock vibration feedback system and feedback signal generation method

Abstract

The present invention relates to a human body electromyographic signal virtual shock vibration feedback system and a feedback signal generating method. The system includes a myoelectric signal sensor, a vibration feedback device, a virtual reality glasses device, a virtual reality scene module, etc., and the method includes: 1. Virtual reality scene platform, 2, preprocessing of muscle electrical signals, etc., the superior effect of the method of the present invention is: when the user performs the correct tapping posture, that is, a standardized tapping posture is given at the initial stage of training, the user can get The vibration feedback will change linearly with the change of the tapping force. By using a simplified vibration feedback device and driven by the corresponding vibration feedback algorithm, the vibration feedback of the corresponding characteristics of different materials will be generated during the training process, giving the user Greater freedom of movement and user experience.

Description

technical field [0001] The invention relates to the field of virtual reality, in particular to a multi-channel human body electromyogram (EMG, electromyogram) virtual percussion vibration feedback system and a method for generating feedback signals thereof. Background technique [0002] Percussion has always been the most common and popular form of musical expression in instrumental performance. As we all know, in order to proficiently master a percussion instrument, a sufficient condition is the need for long-term repetitive training, correct percussion posture and strength, and the formation of corresponding muscle memory and motor skills. [0003] With the development of virtual reality technology and the popularization of wearable devices, users are not restricted by factors such as traditional training venues, equipment, and on-the-spot teaching. Immersing in the virtual environment for percussion performance is an effective solution, thanks to The programmability of t...

AI Technical Summary

Problems solved by technology

[0005] 1. When it comes to the posture discrimination of the human body, the accelerometer placed on the surface of the limb can be used to study the physical motion state of the human body. However, when the percussion behavior of the human forelimb is specifically studied, the vibration generated by the collision will affect the fixed limb. Accelerometers cause a lot of noise, so acceleration is not a very reasonable solution in this scenario

Similarly, computer vision can also be used to capture human behavior from light propagation, but due to the complexity of behavior, light diffraction, interference from ambient light signals, etc., it is still challenging in the specific implementation stage

In addition, using too many sensing devices also has a negative impact on user experience

[0006] 2. When it comes to vibration feedback to the user, the commonly used vibration feedback model is a sinusoidal attenuation model with damping. By adjusting the amplitude coefficient, attenuation rate and sinusoidal frequency to simulate the characteristics of knocking on different materials, but with high fidelity The use of vibration feedback equipment and corresponding signal generator equipment is inevitable

[0009] None of the above-mentioned invention patent applications involves the generation method of virtual percussion vibration feedback signal of human body electromyographic signal

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