Intelligent artificial hand system

Abstract

The invention relates to an intelligent artificial hand system which comprises an artificial hand body, a drive motor, a piezoelectric electret, a control terminal and a signal interaction module. The artificial hand body comprises a plurality of finger knuckles controlled by the drive motor. The control terminal controls the artificial hand body to grasp according to a first myoelectric signal. The piezoelectric electret collects a tactile signal and a slip sense signal, the control terminal controls whether the artificial hand body continues grasping or not according to the signals, and the signal interaction module feeds back stimulation to a stump. The signal interaction module also obtains a third myoelectric signal, and the control terminal controls the artificial hand body to grasp further according to the third myoelectric signal. The control terminal also controls the artificial hand body to open according to a second myoelectric signal. The intelligent artificial hand system overcomes the defect that a traditional artificial hand can not feel motion states or motion trends of an object relative to the artificial hand and can not control and adjust grasping strength, and is high in reliability and safety, low in cost and easy to popularize.

Description

【Technical field】 [0001] The invention relates to the field of rehabilitation medical equipment, in particular to an intelligent artificial hand system. 【Background technique】 [0002] For a long time, diseases, industrial injuries, natural disasters, traffic accidents and other accidental injuries have caused tens of thousands of people with physical disabilities. Installing artificial limbs for these physically disabled people is the main means to restore their limb functions. Therefore, the research and development of prosthetics and prosthetic control systems are of great significance to help people with physical disabilities to take care of themselves, improve their quality of life and increase employment opportunities, reduce the input costs of the country and society, and promote social harmony. [0003] Prosthetic control technology has made great progress in the development process of decades, and the practicability of prosthetics has also been improved to a certain...

AI Technical Summary

Problems solved by technology

The piezoresistive touch-slip sensor is large in size, the signal acquisition circuit is complex, and it is not easy to integrate, and the leakage current of the piezoresistor is unstable and easy to age; the piezoelectric material commonly used in piezoelectric touch-slip sensing technology is PVDF piezoelectric material. Electrical materials, their sensitivity is low, and the preparation process of this material is complicated, the cost is high, and basically rely on imports

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