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Robotics is a domain in artificial intelligence that deals with the study of creating intelligent and efficient robots.
Robots are the artificial agents acting in real world environment.
Robots are aimed at manipulating the objects by perceiving, picking, moving, modifying the physical properties of object, destroying it, or to have an effect thereby freeing manpower from doing repetitive functions without getting bored, distracted, or exhausted.
Robotics is a branch of AI, which is composed of Electrical Engineering, Mechanical Engineering, and Computer Science for designing, construction, and application of robots.
The robots have mechanical construction, form, or shape designed to accomplish a particular task.
They have electrical components which power and control the machinery.
They contain some level of computer program that determines what, when and how a robot does something.
Here is the difference between the two
Locomotion is the mechanism that makes a robot capable of moving in its environment. There are various types of locomotions
This type of locomotion consumes more power while demonstrating walk, jump, trot, hop, climb up or down, etc.
It requires more number of motors to accomplish a movement. It is suited for rough as well as smooth terrain where irregular or too smooth surface makes it consume more power for a wheeled locomotion. It is little difficult to implement because of stability issues.
It comes with the variety of one, two, four, and six legs. If a robot has multiple legs then leg coordination is necessary for locomotion.
The total number of possible gaits (a periodic sequence of lift and release events for each of the total legs) a robot can travel depends upon the number of its legs.
If a robot has k legs, then the number of possible events N = (2k-1)!.
In case of a two-legged robot (k=2), the number of possible events is N = (2k-1)! = (2*2-1)! = 3! = 6.
Hence there are six possible different events
In case of k=6 legs, there are 39916800 possible events. Hence the complexity of robots is directly proportional to the number of legs.
It requires fewer number of motors to accomplish a movement. It is little easy to implement as there are less stability issues in case of more number of wheels. It is power efficient as compared to legged locomotion.
Standard wheel Rotates around the wheel axle and around the contact
Castor wheel Rotates around the wheel axle and the offset steering joint.
Swedish 45o and Swedish 90o wheels Omni-wheel, rotates around the contact point, around the wheel axle, and around the rollers.
Ball or spherical wheel Omnidirectional wheel, technically difficult to implement.
In this type, the vehicles use tracks as in a tank. The robot is steered by moving the tracks with different speeds in the same or opposite direction. It offers stability because of large contact area of track and ground.
Robots are constructed with the following
Power Supply The robots are powered by batteries, solar power, hydraulic, or pneumatic power sources.
Actuators They convert energy into movement.
Electric motors (AC/DC) They are required for rotational movement.
Pneumatic Air Muscles They contract almost 40% when air is sucked in them.
Muscle Wires They contract by 5% when electric current is passed through them.
Piezo Motors and Ultrasonic Motors Best for industrial robots.
Sensors They provide knowledge of real time information on the task environment. Robots are equipped with vision sensors to be to compute the depth in the environment. A tactile sensor imitates the mechanical properties of touch receptors of human fingertips.
This is a technology of AI with which the robots can see. The computer vision plays vital role in the domains of safety, security, health, access, and entertainment.
Computer vision automatically extracts, analyzes, and comprehends useful information from a single image or an array of images. This process involves development of algorithms to accomplish automatic visual comprehension.
This involves
OCR In the domain of computers, Optical Character Reader, a software to convert scanned documents into editable text, which accompanies a scanner.
Face Detection Many state-of-the-art cameras come with this feature, which enables to read the face and take the picture of that perfect expression. It is used to let a user access the software on correct match.
Object Recognition They are installed in supermarkets, cameras, high-end cars such as BMW, GM, and Volvo.
Estimating Position It is estimating position of an object with respect to camera as in position of tumor in humans body.
The robotics has been instrumental in the various domains such as
Industries Robots are used for handling material, cutting, welding, color coating, drilling, polishing, etc.
Military Autonomous robots can reach inaccessible and hazardous zones during war. A robot named Daksh, developed by Defense Research and Development Organization (DRDO), is in function to destroy life-threatening objects safely.
Medicine The robots are capable of carrying out hundreds of clinical tests simultaneously, rehabilitating permanently disabled people, and performing complex surgeries such as brain tumors.
Exploration The robot rock climbers used for space exploration, underwater drones used for ocean exploration are to name a few.
Entertainment Disneys engineers have created hundreds of robots for movie making.
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