Smart Robotic Arm

There may have many smart solutions available in the market for disable person or amputees. But the market value for a cheapest robotic arm is too high that even a middle class person cannot afford it to buy. The cheapest robotic arm that is available in the market is of minimum $2000. Our product w

Project Title

Smart Robotic Arm

Project Area of Specialization

Robotics

Project Summary

There may have many smart solutions available in the market for disable person or amputees. But the market value for a cheapest robotic arm is too high that even a middle class person cannot afford it to buy. The cheapest robotic arm that is available in the market is of minimum $2000. Our product will be cost efficient which will be approachable to secondary level customers. Current prosthetic hands are effective but costly. The structure of a practical human prosthetic hand was made and its control system was designed. The configuration of four independently activated fingers and a controlled thumb was constructed which is inconspicuous as business items. Fingertip hold power was shown by means of LEDs for feedback control. The hand contains a battery and few controllers. Numerous values for input signals/information and control calculations were exhibited. This model can be modified in future with advanced control system and efficient programming.

Project Objectives

The main purpose of this work was to build up a light-weighted robotic hand with natural incitation, for example an independent, trans-radial prosthetic hand to be fitted in residual limb. This hand is intended to be clinically tested by amputees utilizing various degrees of interfaces depending upon the input signals. Interfaces were used to connect EMG controller with neural electrodes that are embedded into Peripheral Nervous System (PNS).

• Develop an efficient prosthesis with all the basic features displayed by the human hand.
• Develop a sophisticated system using non-invasive control mechanisms and sensory substitution systems.
• Provide some kind of biofeedback to the user by means of different interfaces.   
• To connect the hand directly to the PNS by means of neural electrodes.  
• To design and develop a trans-radial prosthesis both capable of allowing the amputee to complete a list of functional useful for activities of daily living.  

Project Implementation Method

The cost efficient prosthetic hand was created that comprises of four essential segments:

a 3Dprinted electromechanical hand, an EMG interface, a microcontroller which would be capable of real time digital signal processing, and a stable embedded control system. The

3Dprinted hand model was displayed, printed and designed for under approximately PKR 25000. 

The hand contains more than 30 parts, including 15 remarkable printed segments. It is incited with high-torque servos that are constrained by Pulse Width Modulator (PWM) signals controlled by the microcontroller, an Arduino mini. The EMG interface works by receiving differential signal input from muscle impulses from the residual limb of the client. Those signals are then enhanced, and transferred to Analog to digital converter (ADC). The ADC at that point increases the signal over a serial peripheral interface (SPI) to the microcontroller.   

The Arduino forms the signal by preforming a Fast Fourier Transform (FFT) which changes the signal from the time to the frequency domain. When a signal is in the frequency domain, the value of the significant frequency can easily be determined. If the value of these significant bins surpasses an average value, a muscle impulse is said to have been recognized on that channel.   

Control system or logic implanted in the microcontroller catches series of combination of muscle impulses over the entire accessible channels, hence known as op-codes. The control system breaks down combination of op-codes, and activates the motor in turn to give the directions given by the op-code arrangement. This epic technique for utilizing arrangements of op-codes to direct prosthetic hand work is known as a Multiple Impulse User Interface (MIUI).  

A pressure sensor that is placed on the holding surface of the prosthetic thumb gives feedback signal to the microcontroller through an installed ADC. This input is utilized to control the pressure that is applied when the prosthetic hand holds any article. The control framework is likewise outfitted with a haptic input framework that makes little motors vibrate due to an effective input series of signals. 

Benefits of the Project

Being paralyzed for the whole life is a matter of indignity for at least half of the amputees. Helping poor disable persons, using advanced science, was one of the major motivation behind this research. Approximately the whole world is suffering from wars. People die, but some of them get injured. Due to bombing they lose their part of limb. In order to help them, we are building Artificial Robotic Hand. Making it more innovative using 21st century science and technology would give them heroic powers and they would feel like different and progressive from others. 

Technical Details of Final Deliverable

This product consist of 5 fingers, which will be driven individually with the help of motors. We controlled this arm with the help of  EMG sensor and microcontroller (Arduino) for signal processing. EMG  received Op-code signal from residual limb and  transfered it to the arm.  

Final Deliverable of the Project

Hardware System

Core Industry

Health

Other Industries

IT

Core Technology

Robotics

Other Technologies

3D/4D Printing, Wearables and Implantables

Sustainable Development Goals

Good Health and Well-Being for People, Reduced Inequality

Required Resources

If you need this project, please contact me on contact@adikhanofficial.com