SPACE ROBOTICS-1

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SPACE ROBOTICS:

SPACE ROBOTICS PRESENTED BY: SANDEEP KR YADAV RN 09031089 ELECTRONICS & COMMUNICATION ENGINEERING

CONTENTS:

CONTENTS What is space robotics ? Importance of space robotics Controlling space robotics What technology is needed? Areas of application Examples of space robotics Mars exploration Advantages&disadvantages References Conclusion

WHAT IS SPACE ROBOTICS?:

WHAT IS SPACE ROBOTICS? Space robotics is the development of machines for the space environment that performs Exploration, or to Assemble, Construct, Maintain or Service other hardware in space. Humans generally control space robots locally (e.g. space shuttle robotic arm) or from a great distance (e.g. Mars exploration Rover).

IMPORTANCE OF SPACE ROBOTS:

IMPORTANCE OF SPACE ROBOTS Perform tasks less expensively, sooner, and/or with less risk or more delicate "touch" than with human astronauts. Go where people can’t go (within reason), and for long durations. Space is a hazardous environment Access to space is expensive. Robots don't need to return to Earth (which can be very costly) task less expensively.

CONTROLLING SPACE ROBOT:

CONTROLLING SPACE ROBOT All space robots are basically quite similar, in that each has a controller, sensors,actuator,radio communications and a power supply. The sensors provide information about the robot environment GROUND CONTROL RADIO LINK CONTROLLER SENSORS POWER SUPPLY DRIVE ACTUATOR

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The controller process the information from the sensors and instruction radioed from the ground control, and sends appropriate command signal to the actuators. The actuator and drive convert the command into actions.

WHAT TECHNOLOGY IS NEEDED?:

WHAT TECHNOLOGY IS NEEDED? MOBILITY : Need to plan paths that move quickly and accurately between 2 points without collisions or putting robot or worksite elements at risk. MANIPULATION: using arms and hands to contact worksite elements safely, quickly, and accurately without accidentally contacting unintended objects or imparting excessive forces beyond those needed for the task,

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TIME DELAY: allowing a distant human to effectively command the robot to do useful work. ENVIRONMENTS: operating despite intense heat or cold, ionizing radiation, hard vacuum, corrosive atmospheres, very fine dust, etc.

AREAS OF APPLICATIONS:

AREAS OF APPLICATIONS In-orbit positioning and assembly: For deployment of satellite and for assembly of modules to satellite/space station. In operation: For conducting experiments in space lab. In maintenance: For removal and replacement of faulty modules/packages. In resupply: For supply of equipment, materials for experimentation in spacelab and for the resupply of fuel.

EXAMPLES OF SPACE ROBOTS:

EXAMPLES OF SPACE ROBOTS ROBONAUT Robonaut is an "astronaut-equivalent", highly dexterous robot that can use all the same tools, handholds and other equipment that astronauts in space suits can use; it can be teleoperated by nearby humans (e.g. in a spacecraft or habitat), operate autonomously via multi-second time delay, or perform as an assistant in collaboration with suited astronauts.

MARS EXPLORATION::

MARS EXPLORATION: VIKING PROGRAM : It consisted of a pair of American space probes sent to Mars, Viking 1 and Viking 2. Each spacecraft was composed of two main parts, an orbiteer designed to photograph the surface of Mars from orbit, and a lander designed to study the planet from the surface.. It was the most expensive and ambitious mission ever sent to Mars, with a total cost of

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roughly 1 billion US $. It was highly successful and formed most of the database of information about Mars until the late 1990s and early 2000s.

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SOJURNER : It was launched on December 4, 1996 and reached Mars on July 4, 1997, directly entering the planet's atmosphere and bouncing on inflated airbags. Mars Pathfinder was designed to be a demonstration of the technology necessary to deliver a lander and a free-ranging robotic rover to the surface of Mars in a cost-effective and efficient manner. Pathfinder not

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only accomplished this goal but also returned an unprecedented amount of data and outlived its primary design life. The entire project cost roughly $280 million according to NASA estimates.

SOJOURNER:

SOJOURNER

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ROVER: Spirit, MER-A (Mars Exploration Rover – A), is a robotic rover on Mars, active from 2004 to 2010. It landed successfully on mars on January 4, 2004. Spirit is six-wheeled, solar-powered robots standing 1.5 m (4.9 ft.) high, 2.3 m (7.5 ft.) wide and 1.6 m (5.2 ft.) long and weighing 180 kg.

CONCLUSION:

CONCLUSION In the future, robot will make it possible for billions of people to have life of leisure instead of current preoccupation with materials needs. There are hundreds of millions who are now facinated by space but do not have the means to explore it. For them the space robotics will throw open the door to explore and experience the universe.

ADVANTAGES:

ADVANTAGES High Accuracy More efficiency Reduces human errors

DISADVANTAGES:

DISADVANTAGES High cost Less precise Takes more time

REFERENCES:

REFERENCES GOOGLE.COM YAHOO.COM SPACE ROBOTICS.COM

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