Essay Example on Due to technological advance of robotic applications in Human









SUMMARY OF UNDERGRADUATE FINAL YEAR PROJECT Background Due to technological advance of robotic applications in human life it is necessary to overcome the problems faced in robot s walking changing direction crossing obstacle and climbing stairs The advances in automations and robotics have garnished the way for development of human like robots Robotics community has been involved in studying the human walking and building human like robot to achieve most of the complex tasks Humanoid robots have been built to adapt itself into environment of humans that can avoid and cross over obstacles and climb stairs Stair climbing is one of the most attractive performances of a robot in legged and wheeled Developments made on various kinds of stair climbers considered how to make their climbing ability higher and mechanical complexity reasonable and practical Reducing body weight and energy consumption is the main thing on which researchers are working Researchers designed Algorithms to find the goal directed navigation strategies for humanoid robot Biped robots are suitable for indoor environments including the navigation on rough terrain and uneven surfaces Unlike wheeled robot passing over the obstacles is a distinctive feature of humanoid robots which can also walk on uneven slopes and surfaces and due to this these are fit for jobs that are dangerous to people for instance defusing bombs rescue operations finding survivors in unstable ruins and exploring mines and shipwrecks 

The human like robots helps to saves labor and time with minimal amount of loss in hazardous situation Introduction A humanoid robot is an autonomous robot because it can adapt to changes its environment or itself and continue to reach its goal In design of developing humanoid legs I focused on designing a self balancing and stair climbing robot that can avoid obstacles not only by changing its directions but also by crossing over it These robotic legs have 8 DOF degree of freedom four for each leg two degree of freedom forward backward up down for knee joints and two for ankle joints First step of this project involves the designing of basic structure of robotic legs and itself balancing This is achieved by the use of balancing algorithms and level sensors which work together and make the model stable and balance They continuously watch over so many things in order to achieve balance and stability of robotic legs i e how the vertical movements support the body changing the torque of moving legs adjusting that torque and sensory feedback Other important points for achieving the stability of robotic legs are COG for static walking and ZMP for dynamic walking For balancing purpose walking sequence walking sequence control and walking sequence phases single phase double phase should be observed carefully Self balancing and stair climbing robot is two legged Arduino controlled actuated robot with 8 Degrees of freedom Signals from level sensors and Ultrasonic Sensors will work as an input to the Arduino Arduino will program those signals and will provide output signals to the servo motors and it will drive servo motors according to the input signals Servo motors will let the robotic legs move 

Ultrasonic sensors and level sensors are used for climbing and self balancing purpose In development of Stair climbing two legged Arduino controlled biped robot firstly we have to deal with self balancing It will also have the capability to avoid obstacles by changing its direction or crossing over the obstacle For Humans balancing for a Robot with two legs is one of the most difficult tasks a task that consumes considerable energy resources and computing power to achieve self balancing and stair climbing Therefore we need servo motors having 40kg cm of torque 1 2 Aims Objectives The Aim of Biped robot is to serve as companions and assistants for humans in daily life and as ultimate helpers in man made and natural disasters It can provide comfort and safety to humans The idea behind application of biped robots is self balancing and stair climbing The main practical issues in developing such a robot are the speed and stability of the robot while climbing stairs There were many issues being faced by vehicular robots i e they were too heavy had very complex structure used high power sources and much more

The objectives behind designing this model were to solve or at least reduce these problems The main objective of this project is to develop human like robotic legs with the capabilities of self balancing stair climbing and avoiding obstacle We are proposing a robot that looks a lot like the human legs that can balance itself according to the height of step Robotic legs must be capable of stepping up and down staircases and other obstacles where a sufficient large flat surface can support the robot s feet The other objectives of this system are Able to move around on normal flat surface Able to walk on a known slope Balance control Ability to detect the level of steps Has an ability to step over and cross over steps Stair recognition Doesn't lose balance and stability while walking crossing an obstacle changing the direction and climbing the stairs 1 3 Applications This model has major applications such as military robots or security robots in urban environments along with this other applications are Personal assistance Security and hazardous environments Rescue operations and military activities Robot Competitions Access and scan areas human cannot get go Building and home management Plant Management Industrial Vehicular operation Collaborative outdoor work Care support system Agricultural work Disaster mitigation and as well as for urban search where robot should be able to deal with rough terrain and even to climb stairs

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