Vehicle guidance and control system

Details Vehicle guidance and control system Vehicle guidance and control system

1984-05-08

1987-03-03

Willis, Davis L.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250566, 356 1, 901 47, G01N 2186

Patent

active

046477845

ABSTRACT:
A vehicle guidance and control system has a number of trucks whose movement is controlled by a base station. Each truck periodically fixes its own position in relation to marker boards consisting of patterns of reflective coded stripes by scanning a narrow laser beam in a predetermined direction across the stripes. Using at least two boards its position can be determined by triangulation, and because the beam scans in a fixed direction, the positional accuracy can be determined by a particular stripe or edge of a stripe, and not by the size of a marker board as a whole.

REFERENCES:
patent: 4307791 (1981-12-01), De Bruine
patent: 4328422 (1982-05-01), Loomer
patent: 4482960 (1984-11-01), Pryor
patent: 4531061 (1985-07-01), Rabinow

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