Cooperative robot and user friendly robot - new challenge in robotics

In the near future many aspect of our life will be encompassed by tasks performing in cooperation with robot. The application of robot in home automation, agriculture production and medical operations etc will indispensable. As a result robot needs to be made human-friendly and to execute tasks in cooperation with human. Researchers proposed many new field of research in Robotics. Cooperative robotics and User friendly robotics are two new area of robotics research. Some researcher is trying to make human like robot. Robots that will be imitate human characteristics in movement, learning etc. Other researchers trying to develop robots which will be entertain human. Another group trying to develop robots and/or control system or robots those will be work cooperatively. In this paper it is tried to gather information regarding these two fields in brief. The cooperative robots and user friendly robots are directly or/and indirectly interact with human. Therefore, human characteristics such as faces, voices, gesture, and movements play an important role in design and control of such robots. The more human-like the robot appears, the higher the expectations of people interacting with it are. All the aspects of human, physical, movements and sensing ability, interacting with environment must be considered to design user friendly and cooperative robots. Biograph

Wall climbing robot

The Robot, named as TRAIN WALL BOT, is designed which has the ability to navigate on smooth vertical surfaces with the capability to avoid obstacles and overcome it if the height of the obstacles is about 1cm. The design is inspired from train steel wheel movement which uses two actuated legs with rotary motion supplied from the motor. The Robot uses pneumatic system and the suction force is supplied by an air compressor that will turn on intermittently. The sucking system force controls the attachment of the robot to the wall by using 3 vacuum valves and 6 vacuum pads (2 vacuum pads on each leg, and 2 vacuum pads below the body). The robot is controlled using PIC16F877A. The main body of the robot carries the motor and important electronic components. Two limit switches are used to acknowledge the contact with its navigating surface, one is attached with one leg and other is attested with the body part. Vacuum suction is controlled based on the ON OFF priority of the limit switch. IR distance sensor detects obstacles which are higher than 1cm. The simple design of the Robot ensures the capability to walk, climb vertically up to 85º and 90º slope smooth surfaces and avoid obstacles. It has the advantages of faster forward and backward movements which is smooth and more stable (because of the coupling design)than other existing wall climbing Robots

Cooperative robot and user friendly robot- new challenge in robotics

In the near future many aspect of our life will be encompassed by tasks performing in cooperation with robot. The application of robot in home automation, agriculture production and medical operations etc will indispensable. As a result robot needs to be made human-friendly and to execute tasks in cooperation with human. Researchers proposed many new field of research in Robotics. Cooperative robotics and User friendly robotics are two new area of robotics research. Some researcher is trying to make human like robot. Robots that will be imitate human characteristics in movement, learning etc. Other researchers trying to develop robots which will be entertain human. Another group trying to develop robots and/or control system or robots those will be work cooperatively. In this paper it is tried to gather information regarding these two fields in brief

Human location estimation using thermopile array sensor

Utilization of Thermopile sensor at an early stage of human detection is challenging as there are many things produce thermal heat other than human such as electrical appliances and animals. Therefrom, an algorithm for early presence detection has been developed through the study of human body temperature behaviour with respect to the room temperature. The change in non-contact detected temperature of human varied according to body parts. In an indoor room, upper parts of human body change up to 3 o C whereas lower part ranging from 0.58 o C to 1.71 o C. The average changes in temperature of human is used as a conditional set-point value in the program algorithm to detect human presence. The current position of human and its respective angle is gained when human is detected to be presented at certain pixels of sensor array. Human position estimated successfully as the developed sensory system is tested to Stand Fan

A new geometrical approach to solve inverse kinematics of hyper redundant robots with variable link length

In this paper a new approach that generates a general algorithm for n-link hyper-redundant robot is presented. This method uses repetitively the basic inverse kinematics solution of a 2- link robot on some virtual links,where the virtual links are defined following some geometric proposition. Thus, it eliminates the mathematical complexity in computing inverse kinematics solution of n-link hyper redundant robot. Further, this approach can handle planar manipulator with variable links eliminating singularity. Numerical simulations for planar hyper redundant models are presented in order to illustrate the competency of the model

Sensory and control system for smart fan

A smart fan is a development of an ordinary fan that consists of several features to help more comfortable and easier life. Ordinary stand fan is operated manually which people has to determine the speed of the fan and the oscillation of the fan is fix at a certain degrees. The smart fan is developed to have a speed regarding to the environment temperature and it will only operate as there is presence of human. Furthermore the fan is designed to oscillate with respect to the human location. To this extend, researches on the temperature controller and human location detection have been done and the system design explained in this report. The working principle of smart fan is interrelated between electromechanical, electronics and control system. The LM35 is used to determine the environment temperature meanwhile the passive infrared is used to determine the presence of human and ultrasonic sensors are used to detect the human location. The system is controlled by microcontroller which making the typical stand fan to be smarter

Cooperative robot and user-friendly robot - new challenge in robotics

In the near future many aspect of our life will be encompassed by tasks performing in cooperation with robot. The application of robot in home automation, agriculture production and medical operations etc will indispensable. As a result robot needs to be made human-friendly and to execute tasks in cooperation with human. Researchers proposed many new field of research in Robotics. Cooperative robotics and User friendly robotics are two new area of robotics research. Some researcher is trying to make human like robot. Robots that will be imitate human characteristics in movement, learning etc. Other researchers trying to develop robots which will be entertain human. Another group trying to develop robots and/or control system or robots those will be work cooperatively. In this paper it is tried to gather information regarding these two fields in brief

Inverse Kinematics of a Hyper-Redundant Robotic Manipulator

Serial robots, Snake or, Worm robots, Tentacle robots or continuum robots are known as hyperredundant robots and possess very large degrees of kinematics redundancy. Inverse kinematics of hyper-redundant robots can have infinite number of solutions, which is a great challenge against position control of such robots. Various techniques have so far been proposed for inverse kinematics of hyper-redundant robots that involve wide range of mathematics, which include nonlinear optimization, Artificial Neural Network, Fuzzy System etc. In this paper a new technique has been proposed that assumes a configuration with a virtual layer, where probable singularities are included. In the successive steps the singularities are removed following some geometric propositions to have the final version of the configuration, which ultimately gives the inverse kinematics of the hyperredundant robot. Mathematics involved in this new technique is the traditional inverse kinematics solution of two link subrobots, which are selected to satisfy the geometric propositions. The proposed technique has been tested on four link and six link robots and some comparison are made with one of the recent techniques known as ANFIS