Boots – shoes – and leggings
Patent
1992-04-06
1993-12-21
Trans, Vincent N.
Boots, shoes, and leggings
414591, 4147442, 377 17, G01D 2100, B65G 4722
Patent
active
052726487
ABSTRACT:
There is disclosed a position detection method of a robot which provides two incremental position transducers mounted to a robot axis in interlocked relationship with each other and rotatably to produce pulse signals having the number different from each other in response to a moving distance of the moving robot axis and detects a difference between the numbers of pulses produced from the position transducers to detect the position of the robot. Further, a difference (P.sub.2i) of the pulse number between reference pulses produced from the two position transducers at any position of the moving robot axis is calculated and the pulse number (i) of a next reference pulse from a reference position is then calculated on the basis of i=(P.sub.1 -P.sub.2i)/(P.sub.1 -P.sub.2) where P.sub.1 and P.sub.2 are the numbers of pulses produced during one rotation of the position transducers, respectively, so that P.sub.1 .times.i is calculated to detect a position of the robot axis. Accordingly, the moving distance necessary for detection of the reference point can be greatly shortened to less than two rotations of the position transducer and the time required for detection of the reference point can be also greatly reduced.
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patent: 4119212 (1978-10-01), Flemming
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patent: 4697168 (1987-09-01), Baker
Miyata Takashi
Yoshida Mitsutoshi
Mitsubishi Jukogyo Kabushiki Kaisha
Trans Vincent N.
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