Page 326 - Concise Encyclopedia of Robotics
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Telechir
                            Rather than allowing us more free time, our technological miracles seem
                            to devour our time and attention.
                              To avoid the less desirable effects of technocentrism, humanity must
                            adopt a balanced outlook. Humans must be, and must always remain, the
                            masters of machines.
                              See also UNCANNY VALLEY.
                         TELECHIR
                            See TELEOPERATION and TELEPRESENCE.
                         TELEMETRY
                            Telemetry is the transmission of quantitative information from one point
                            to another, usually by wireless means, and particularly by radio. Telemetry
                            is used extensively to monitor conditions in the vicinity of remote devices
                            such as robots, weather balloons, aircraft, and satellites. Telemetry is used
                            in space flights, both manned and unmanned, to keep track of all aspects
                            of the equipment and the physical condition of astronauts.
                              A telemetry transmitter consists of a measuring instrument or set of
                            instruments, an  encoder  that  translates  the  instrument  readings  into
                            electrical impulses, and a modulated radio transmitter with an antenna.A
                            telemetry receiver consists of a radio receiver with an antenna, a demodu-
                            lator,and a recorder.A computer is often used to process the data received.
                            Data conversion might be necessary at either the transmitter end (the
                            remotely controlled device or system), the receiver end (usually the station
                            attended by a human operator), or both.
                              See also DATA CONVERSION, REMOTE CONTROL, TELEOPERATION, and TELEPRESENCE.
                         TELEOPERATION
                            Teleoperation is the technical term for the remote control of autonomous
                            robots. A remotely controlled robot is called a telechir.
                              In a teleoperated robotic system, the human operator can control the
                            speed, direction, and other movements of a robot from some distance
                            away. Signals are sent to the robot to control it; other signals come back,
                            telling the operator that the robot has followed instructions. The return
                            signals are called telemetry.
                              Some teleoperated robots have a limited range of functions. A good
                            example is a space probe, such as Voyager, hurtling past some remote
                            planet. Earthbound scientists sent commands to Voyager based on the
                            telemetry received from it, aiming its cameras and fixing minor problems.
                            Voyager was, in this sense, a teleoperated robot.
                              Teleoperation is used in robots that can look after their own affairs most
                            of the time, but occasionally need the intervention of a human operator.




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