The simple control algorithm is developed in this research using the flex sensors & servo motors to drive several grip pattern of prosthetic hand. This method is difficult to implement in the prosthetic hand control system due to the limitation of hardware memory in the microcontroller. One of common pattern recognition method in the EMG signal recognition is neural network. Some research hands use pattern recognition method of the EMG signal to distinguish the hand movement or gesture. The most widely used sensor for reading the muscle activities is electromyography (EMG) sensor. In order to the prosthetic hand can move using command from the remaining muscle of the amputee, the hand must read the muscle activities by using sensor. The prosthetic hand is used to replace the lost hand especially for transradial amputation. Some researches about prosthetic hand significantly increased in the size, weight, and anthropomorphism. The prosthetic hand also must be able to perform activities of daily living (ADLs) such as take, grasp, and hold an object. The hand must be easy to manufacture, and easy to maintain with the available component in the market. The purpose of this research is to develop a low cost prosthetic hand using widely used mechatronics components. The available prosthetic hand in the market with great features is very expensive that make it only certain people can buy it. The research of robotic hand has grown significantly especially in the development of robotic prosthetic hand ranging from research hand to commercial hand. The robotic arm has great use when it comes to precision and monotonicity. It has huge applications in large industries, where a lot of manpower is needed. The robotic arm has its applications not just in fields where things get smaller. Situations like working in canyons, caves, mining, works involving minute details like manufacture of watches, automobile parts, etc. There are numerous situations when humans cant directly involve themselves. There are many situations where humans just can't just get their hands onto something. The arm includes a glove which will be worn and the sensors based on the motion of the fingers will cause the exact same motion in the steel framed arm simulation (the robotic arm). The robot works on simple components like a steel frame for simulating fingers, sensors for detection of motion, and is driven by the ARDUINO board. Here in our paper the robotic arm has been built on a primitive basis, however much complex and sophisticated can be built. The result is a frame analogous to the functioning of a human arm. The arm has links connected by joints, allowing either rotational motion or translatory displacement. Keywords: Flex sensors, Servo motors & ARDUINO.Ī robotic arm is a type of mechanical arm usually programmable, with similar functions to a human arm. Based on the values provided the motor moves and hence pulls the hand simulation, hence replicating the motion of the hand. The sensor sends the value to the ARDUINO the ARDUINO processes the data and sends it to the servo motors. The flex sensors and servo motors work in co-ordination with ARDUINO as their mediator to achieve this. It is an effort to replicate the movements of the human hand using a plastic 3D printed hand simulation (hand frame), using flex sensors and servo motors. A Low Cost Prosthetic Hand using Flex Sensors and Servo MotorsġComputer Science & Engineering Department, SIT TumkurĪbstract:- This research focuses about the simulation of the gestures of the human hand.
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