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Modularized embedded control system for multi-finger myoelectric artificial hand with various sensing functions

An embedded control and sensing function technology, applied in the direction of electrical program control, comprehensive factory control, comprehensive factory control, etc., can solve the problems of poor real-time performance and large size, and achieve real-time improvement, volume reduction, and easy development, improvement and customization The effect of production

Active Publication Date: 2014-02-19
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to solve the problems of large volume and poor real-time performance of the existing artificial hand control sys

Method used

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  • Modularized embedded control system for multi-finger myoelectric artificial hand with various sensing functions
  • Modularized embedded control system for multi-finger myoelectric artificial hand with various sensing functions
  • Modularized embedded control system for multi-finger myoelectric artificial hand with various sensing functions

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Experimental program
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specific Embodiment approach 1

[0044] Specific implementation mode 1. Combination Figures 1 to 5Illustrate this specific embodiment, the multi-finger myoelectric prosthetic hand modular embedded control system with multiple sensory functions is characterized in that: it includes finger control circuit 1, palm control circuit 2, myoelectric signal acquisition module 3, thumb internal rotation / Outreach circuit 6, USB interface circuit 7 and PC 8;

[0045] The finger control circuit 1 includes a thumb control circuit, an index finger control circuit, a middle finger control circuit, a ring finger control circuit and a little finger control circuit;

[0046] The thumb control circuit is used to control the action of the thumb of the prosthetic hand, and is also used to communicate with the palm control circuit 2 through the RS-485 bus;

[0047] The index finger control circuit is used to control the action of the index finger of the prosthetic hand, and is also used to communicate with the palm control circ...

specific Embodiment approach 2

[0055] Embodiment 2. The difference between this embodiment and the multi-finger myoelectric prosthetic hand modular embedded control system with multiple sensing functions described in Embodiment 1 is that the palm control circuit 2 is realized by FPGA.

[0056] The FPGA chip is connected to the voltage conversion chip 33 through the SPI interface of 3.3 volts, and the other end of the voltage conversion chip 33 is connected to the ADC chip 32 through the SPI interface of 5 volts;

[0057] The FPGA converts the SPI signal from 3.3 volts to 5 volts through the voltage conversion chip 33 to control the ADC chip 32, collects 8 road myoelectric signals, and then converts the SPI signal of 5 volts to the SPI signal of 3.3 volts by the voltage conversion chip 33. The collected 8 channels of myoelectric digital signals are transmitted to FPGA.

specific Embodiment approach 3

[0058] Specific Embodiment Three. The difference between this specific embodiment and the multi-finger myoelectric prosthetic hand modular embedded control system with multiple sensory functions described in specific embodiment one is that it also includes an electrical stimulation feedback module 5. The stimulation feedback module 5 is used for sending electrical stimulation feedback signals to the human body.

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Abstract

The invention relates to a modularized embedded control system for a multi-finger myoelectric artificial hand with various sensing functions, belonging to modularized embedded control systems for the multi-finger myoelectric artificial hand. The control system is mainly composed of a master control chip module, a USB interface module, a thumb control circuit module, an index finger control circuit module, a middle finger control circuit module, a ring finger control circuit module, an index finger control circuit module, a myoelectric signal acquiring module, a battery management system module and an electric simulation feedback module, wherein the master control chip module is formed by an FPGA (Field Programmable Gate Array), and the USB interface module is formed by a CUSB3014. The multi-freedom artificial hand of the invention includes modularized fingers, the five fingers include independent drive control systems, the function of self operation and self control can be realized, the response processing speed can be increased, the modularized finger modules are communicated with a palm control module via an RS-485 bus, and the USB interface module, the myoelectric signal acquring module and the battery management system module include universal interfaces. The system of the invention is suitable for modularized embedded control for the multi-finger myoelectric artificial hand.

Description

technical field [0001] The invention relates to a multi-fingered myoelectric prosthetic hand modular embedded control system. Background technique [0002] The prosthetic hand, as the main object of human hand motor function reconstruction, is very important for the disabled to carry out daily life and better integrate into the society, and has a great social demand. An ideal prosthetic hand should have the bionic characteristics of a human hand, reflected in three aspects: structure, control, and information transmission. At the same time, commercial prosthetic hands that meet social needs should also have the advantages of low cost, easy development, production and improvement. [0003] However, the relatively mature commercial prosthetic hands currently on the market almost all face the problems of high cost, poor improvement, and difficulty in the development of future generations, and cannot meet the needs of the majority of disabled patients. The reason is that the p...

Claims

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Application Information

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IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 刘宏张庭樊绍巍杨大鹏曾博姜力
Owner HARBIN INST OF TECH
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