1. INTRODUCTION
1.1 BACKGROUND
The concept of robots or robot-like automates can be traced back to medieval times. Although people of that era didn’t have a term to describe what we would eventually call a robot they were nevertheless imagining mechanisms that could perform human-like tasks. The robot really became a popular concept during the late 1950’s and early 1960’s. With the automotive industry in full expansion at that time, industrial robots were employed to help factory operators.
The entire world is experiencing the burgeoning interest in the field of technology. Considering the revolutionary development on the robotic world we themed our project on robot control. Being the member of engineering society we play a vital role in changing the society according to the time and need, and hence to make life easier we forward this project. This project is not an original invention we made. At different times in the past, we believe several attempts were made by others on the theme of Robots. But we have used our theoretical knowledge of various electronic components to implement practically in the real world and proud to forward this project on our research, study and effort under the supervision of the supervisor.
World has been using robotic arm in various applications such as:
a) Vehicle assembly in motor company
b) Wielding Arms in factories
c) Space Shuttle repair job
d) Radioactive areas
e) Remote surgery [telemedicine]
f) Bomb identification and disposal
1.2 PROJECT INTRODUCTION
Since the beginnings of civilization man has had a fascinating for a human-like creation that would assist him. Societies in the early part of the first millennium engaged in slavery and used those slaves to perform the tasks. With the human evolution, man had discovered machines and the means of creating complex mechanisms which would perform repetitive functions in simple way. It may also have some ability to distinguish and data on physical environment, to process data and to respond to various stimuli. This is in contrast to a simple mechanical device which does tasks thorough purely mechanical process and motion on the control of appropriate signals.
A robot is a mechanical or virtual agent, usually an electro-mechanical machine that is guided by a computer program or electronic circuitry. Robot is the electronic device assembled together to perform multiple functions. Its components are usually electro-mechanical and are guided by a computer program or electronic circuitry.
The robotic arm is controlled remotely by the user through joystick. The necessary parameters to guide the movement of robotic arm are transmitted from the users under the principles of wireless technology. Thus we find suitable to introduce our project as WIRELESS CONTROLLED ROBOTIC ARM.
In present context of our country, in urban areas technology has taken some approach but rural area is still under the shadow of technology. Our rural community is back in socio-economic, agriculture and other factors as compared to other developing countries. The lifestyle and working style is still traditional. So, the productivity is also unsatisfactory. The rural area needs some technological innovation and accessibility to advance more progressive way. There is little technological equipment which invokes the rural areas development. Similarly our project aims to assist the disabled people and elderly people. Our robot is generic multi-function prototype for the development of rural area and assisting the disabled and elderly people. Our project is the bridge for uplifting the rural area towards the approach of technology and for upgrading and supporting the lifestyle of elderly and disabled people.
1.3 IDEA ON PROJECT
The main idea on project is to build a helping hand as a robotic arm that could assist man kind in different fields. Being electromechanical device, it has less limitation than human in some context. As man needs to eat food for energy, it just needs to get recharged timely. It can also be designed to run on solar power instead. As man has average lifetime of about 80 years, there is no age limit for a robot unless its body parts and accessories are not replaced and oiled timely.
We primarily devised this robot to help disabled people who are unable to move and to create a mile stone in advanced humanoid development.
1.4 PROJECT OBJECTIVES
The prime objective of our project is to assist the related human task. It is aimed to be controlled remotely. Users can make the robot perform some task through robotic arm using the joystick provided to them. Some illustratable important objectives of our project are.
· To make robotic arm movement as desired by the users
· To control the robot from remote place using wireless technology
· To make it as a helpful device for elderly and disabled people (whose lower parts of body cannot function properly)
1.5 INTENDED USERS AND GROUPS
Our project Robotic arm is just a prototype of arm that could have a massive use in real field. The real field version of robotic arm has tremendous users and applications. This could be used in factories where precise arm movement is desirable, outer space to repair space stations, underwater jobs, telemedicine and tele-diagnosis. Mechanical arm for disabled people those who lost their legs or who got their lower part paralyzed.
1.6 OPERATING ENVIRONMENT
Our system includes two separate units: the user section and robot section. Both the section can be used indoors and outdoors per requirements. But the operation of hardware may get influenced by external factors. Because if the small wheels and chassis in our project is confined within the limitation of smooth platform. Low power motors are used so cannot pick heavy objects up.
1.7 ASSUMPTIONS
Certain assumptions to be considered to implement our project are listed below.
· Wireless communication via radio signals.
· Distance coverage is about 100meters with in favorable environment.
· User must be technically conscious
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