Monday, 9 April 2018

Construction of a Robot

What makes a machine different from a Robot? What improvisations convert a dumb machine into a Robot? Though the basic construction of a robot is very much build on the structure of a machine but there are certain things like, actuators, sensors and controllers added to it which makes it a Robot.

Advancement over Machines

The basic building blocks of a robot are very similar to that of machines. As a machine has moving parts or members connected to each other through different types of joints, driven by some motor or any other driving mechanism and moving in synchronization with each other to execute the specified operation. In the same way the basic structure of a robot is similar to that of a machine, but there are some advancements or additions to the machine which make it a robot.


In robots the simple driver motors are replaced by the servo motors, which are more accurate and fitted with sensors made up of transducers to provide feedback. There is more number of actuator motors in the robots as compared to the machines, which generally have single driving motor. Also there are controllers, governing the operations of different sensors and actuators in the robots, provided with the instruction set and they give command accordingly to the actuators and receive feedback from the sensors. These are some advancement in robots over machines.

Saturday, 31 March 2018

Artificial intelligence

Since the invention of computers or machines, their capability to perform various tasks went on growing exponentially. Humans have developed the power of computer systems in terms of their diverse working domains, their increasing speed, and reducing size with respect to time.

A branch of Computer Science named Artificial Intelligence pursues creating the computers or machines as intelligent as human beings.

 Artificial intelligence is an area of computer science that emphasizes the creation of intelligent machines that work and react like humans. Some of the activities computers with artificial intelligence are designed for include:

Speech recognitionLearningPlanningProblem solving

 Research associated with artificial intelligence is highly technical and specialized. The core problems of artificial intelligence include programming computers for certain traits such as:

KnowledgeReasoningProblem solvingPerceptionLearningPlanningAbility to manipulate and move objects

Knowledge engineering and Machine learning is a core part of AI research. 

Wednesday, 28 March 2018

Artificial intelligence Issues

AI is developing with such an incredible speed, sometimes it seems magical. There is an opinion among researchers and developers that AI could grow so immensely strong that it would be difficult for humans to control.

Humans developed AI systems by introducing into them every possible intelligence they could, for which the humans themselves now seem threatened.

Threat to privacy


An AI program that recognizes speech and understands natural language is theoretically capable of understanding each conversation on e-mails and telephones.

Threat to Human Dignity


AI systems have already started replacing the human beings in few industries. It should not replace people in the sectors where they are holding dignified positions which are pertaining to ethics such as nursing, surgeon, judge, police officer, etc.

Threat to Safety


The self-improving AI systems can become so mighty than humans that could be very difficult to stop from achieving their goals, which may lead to unintended consequences.

Sunday, 25 March 2018

Voice recognition in Robots

Voice recognition is the process by which a robot identifies what is ordered to it and performs an action based on the information received. It is to note that not all robots have this functionality; however the system can also be integrated at a later stage.


The voice recognition system works on the basis of the frequency and amplitudes of the spoken words. A signal is generated and sent to the main operating unit of the robot, after dissecting the received words into various frequencies and amplitudes.

Saturday, 24 March 2018

Senerio of Humanitarian Demining

In present humanitarian demining process does not addressed the actual ground situations and not giving a viable and acceptable answer. Lot of research and efforts have already been undertaken but cannot see a viable answer when considering the ground situations. The idea is to find a long lasting and an acceptable solution by a bottom-up approach with the local technological know-how. This will help expanding the local people consciousness to become the master of their own ongoing upgrading, by qualifying commonly used devices and techniques and turning them towards humanitarian demining duties.

In the current context only manual mine clearing is used by deminers as an acceptable methodology while armed forces are using high cost mechanical mine clearing. The ‘robotic solution’ becomes a highly engineering job which is depending on imported devices where the know-how is not available. The increasing cost of the sophisticated devices incorporated in to the robotic devices making very high initial investment and low return on investments.Therefore understanding the actual background is required before trying to solve forcefully as a technology driven issue.

Friday, 23 March 2018

Kinematics

Serial kinematics mechanisms (SKMs) have been widely used for different applications. Although SKMs have many advantages, such serial mechanisms have many drawbacks such as low stiffness, accumulating pose error, low agility, low payload-to-weight ratio, and complicated inverse kinematics. Hence, to overcome these drawbacks, parallel kinematics mechanisms (PKMs) are used particularly for more demanding tasks such as high-speed and high-precision applications. In spite of their many advantages, the PKMs in general also have some drawbacks such as smaller workspace, complicated forward kinematics, and singularity issue. To alleviate these drawbacks, optimization with various techniques is commonly conducted to improve their drawbacks while maintaining their advantages. In terms of the number of objectives being optimized, the optimization can be either single-objective or multi-objective. In most cases, there are more than one objectives required to be optimized. Furthermore, some objectives quite frequently are conflicting each other. For example, most PKMs usually require not only larger workspace but also stiffer structure with lower mass. In fact, enlarging the workspace usually requires longer links which results in the reduction of the stiffness and the increase of mass. In the multi-objective optimization, different objectives might be picked based on the priority of the objectives which depends on the application.


A comprehensive review of a number of performance indices are defined and presented which are relevant for different applications. This is followed by a review of the optimization techniques used to design different systems to satisfy certain objective or multiple objectives. This is extremely important given the nonlinearity of the parallel link manipulator systems and the conflicting nature of the different performance indices that could be counter intuitive to optimize by trial and error and hence, mathematical schemes would be the solution.

Thursday, 22 March 2018

Future of Robotics

It is anticipated by engineers and scientists that in the near future robots will be seen generally at numerous establishments, including production units, farming, hospitals, maintenance, construction, and in homes. Robots will be able to substitute for individuals in most factories where tasks of extra precision are necessary and production rate is important, which is difficult to be performed correctly by human labor.

General Usage of Robots In the Future

International experts on robotics are of the view that by year 2020, robots will be capable of observing and performing tasks, talking, and will possess aptitude and intellect. The association of human beings with robots will be ordinary and usual. In the near future, robots will not be a complex machine, but equipment or machinery to be utilized in every day life, including washing, assisting in moving of disabled or injured people, working in factories, etc.


Robotic surgery

Doctors visualize that in the near future advanced robots will be utilized to assist in carrying out long distance medical treatment including surgery, diagnosis, and other medical treatment. This will enable the treatment to be carried out in a shorter time, and it may not be necessary for the patients to travel long distances, which presently may even involve travel from one continent to another. Robots may also assist in carrying out minor medical treatment, instead of advising a pill for certain ailment, a small robot may be introduced in the blood, which will sense the reason of ailment, and subsequently arrange appropriate medicines in the affected part of the body.


Improvement In human Brain

Robots will be introduced into parts of human beings, such as intellectual insertion in the brain, which will enhance memory and improve ideas in the mind. Nano robots will even be injected into the blood to wash and scrub blood vessels. The human mind with the assistance of robotic brains will be able to perform 100 trillion commands per second.

Robots in Biometrics

The next concentration for modern robots will be biomimetics, an area which will concentrate on the manufacture of equipment that obtain guidance from the environment as motivation for their looks and attitude. Presently, broad research is being carried out in this field.