THE WHATIS.COM WORD-OF-THE-DAY
June 18, 2001
teach box
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TODAY'S WORD: teach box
See our definition with hyperlinks at
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A teach box is a device that registers and memorizes mechanical
motions or processes for later recall and execution by an electronic
or computer system. The term especially applies to programmable
robots.
Robot programming can be divided into levels, starting with the least
complex and progressing to the equivalent of human intelligence. The
table shows a four-level scheme. Level 3, just below human-equivalent
artificial intelligence (AI), is called task-level programming.
Programs at level 3 can instruct a robot to execute complete
operations, such as shoveling the snow from a driveway or flying an
aircraft on a reconnaissance mission.
Programming Level Description
4 Human intelligence
3 Complete tasks
2 Sequences of motions or operations
1 Single motions or operations
An example of a level-1 teach box is a remote-control for the doors
of a car. When the wireless receiver gets the signal from the remote
unit, it locks or unlocks the doors. Another example of a level-1
teach box is the remote box that controls a hi-fi sound system or
videocassette recorder (VCR).
An example of a level-2 teach box is the microcomputer that controls
a telephone answering machine. When a call comes in, the sequence of
operations is recalled from memory. The machine answers the phone,
makes an announcement, takes the message, and resets for the next
incoming call.
Level-3 teach boxes are used in aerospace, miliatary, and industrial
applications. The intended movements of a robot are entered into
memory by pressing buttons or guiding a joystick or other
three-dimensional control device. The robot's path, variations in
speed, rotations, and gripping/grasping movements are all programmed.
Then, when the memory is recalled, the robot reproduces these
movements in the exact sequence, and to the exact extent and speed in
all dimensions.
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