Electronic artificial hand based on sound control

Abstract

The invention relates to an electronic artificial hand based on sound control, which includes an artificial hand speech recognition module, a signal amplification output chip and a signal relay control circuit. And the speech recognition module is composed of a speech recognition chip which can only recognize the user's own speech signal; and the speech recognition chip input end receives at least 7 kinds of speech instructions, one speech instruction is used for specialized training of urgency stop controls of any actions of artificial hand, other six instruction are outputted for the artificial hand electric relay control circuit, two to six instruction output signal are respectively used for controlling one to three freedom degrees of artificial hand, thereby finishing six actions of finger extension, finger bending, wrist internal rotation, wrist outward rotation, wrist extension and wrist bending. The invention can realize speech study function and recognition function, and realize outputs of two to more than six control instructions. The electric relay is used for controlling positive and negative rotation of electric motor, thereby realizing opening and closing functions of artificial hand controlled by two signals.

Description

technical field [0001] The invention relates to a voice-activated electronic artificial hand device based on voice-controlled technology, which controls a multi-free artificial hand through a voice recognition module and a wireless or wired transmission module. Background technique [0002] Sound hands are very important to human beings. They can complete various complex movements that must be used in life, such as grasping, twisting, hooking, lifting, and clamping. But in reality, due to many factors such as traffic accidents, natural disasters, industrial injuries, wars and congenital diseases, there are many patients with disabled limbs. According to statistics, there are tens of millions of patients with residual limbs all over the world. In order to allow disabled people to take care of themselves and improve their quality of life as much as possible, various prosthetic hands have emerged. Therefore, the reconstruction of hand defects has always been an important topi...

AI Technical Summary

Problems solved by technology

[0004] At present, the most advanced electronic prosthetic hand can only complete a very small part of the functions of the human hand, and its accuracy rate is not satisfactory, and all have their own shortcomings

For example, the mechanical traction hand is drawn by the action of the other shoulder, and then through the mechanical transmission and the action of the spring, the artificial hand can perform finger extension and finger flexion. However, this artificial hand has a large mechanical traction force and is not subject to human interference. Will control, people with residual limbs struggle to use it and are not used to it; another example is myoelectric prosthetic hand. The biggest advantage of myoelectric prosthesis is to use the remaining muscle system to control the motor function of the prosthesis in a physiological way, but myoelectric control is essentially an open loop For the control system, patients can only use vision and hearing as feedback signals, which requires patients to concentrate on controlling the prosthesis, which is not conducive to grasping the status of the prosthesis, and some patients have residual limbs due to factors such as short residual limbs and weak EMG signals. influence, causing the EMG signal to be too weak to control the prosthetic hand via EMG

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