Point to point material transport vehicle improvements for glass substrate
First Claim
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1. A method of operating a material transport vehicle (“
- MTV”
), the method comprising;
configuring a collision avoidance system resident on the MTV for;
accepting an input from a human operator proximate to the MTV for initiating forward motion of the MTV;
thereafter driving the MTV, by the human operator, through a clean room facility;
configuring a plurality of safety zones proximate to the MTV;
detecting an intrusion of an obstacle in the clean room facility into one of the plurality of safety zones;
limiting a maximum allowable forward motion of the MTV by an amount determined by the safety zone associated with the detected intrusion, wherein a maximum limitation of the allowable forward motion corresponds to an intrusion into a safety zone closest to the MTV and a minimum limitation of the allowable forward motion corresponds to an intrusion into a safety zone farthest from the MTV; and
limiting a maximum allowable turning motion of the MTV by an amount determined by the proximity of the safety zone to the MTV, wherein a maximum limitation of the allowable turning motion of the MTV corresponds to an intrusion into the safety zone farthest from the MTV and a minimum limitation of the allowable turning motion of the MTV corresponds to an intrusion into the safety zone closest to the MTV.
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Abstract
A method of operating a material transport vehicle (“MTV”), for transporting glass substrates used in the manufacture of image arrays in a clean room factory environment includes accepting a user input for initiating forward motion of the MTV, configuring a plurality of safety zones proximate to the MTV, detecting an intrusion into one of the plurality of safety zones, and limiting a maximum allowable forward motion of the MTV by an amount determined by the proximity of the safety zone to the MTV. The method includes further steps for additional safety, cleanliness, productivity, and maintainability improvements.
37 Citations
17 Claims
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1. A method of operating a material transport vehicle (“
- MTV”
), the method comprising;configuring a collision avoidance system resident on the MTV for; accepting an input from a human operator proximate to the MTV for initiating forward motion of the MTV; thereafter driving the MTV, by the human operator, through a clean room facility; configuring a plurality of safety zones proximate to the MTV; detecting an intrusion of an obstacle in the clean room facility into one of the plurality of safety zones; limiting a maximum allowable forward motion of the MTV by an amount determined by the safety zone associated with the detected intrusion, wherein a maximum limitation of the allowable forward motion corresponds to an intrusion into a safety zone closest to the MTV and a minimum limitation of the allowable forward motion corresponds to an intrusion into a safety zone farthest from the MTV; and limiting a maximum allowable turning motion of the MTV by an amount determined by the proximity of the safety zone to the MTV, wherein a maximum limitation of the allowable turning motion of the MTV corresponds to an intrusion into the safety zone farthest from the MTV and a minimum limitation of the allowable turning motion of the MTV corresponds to an intrusion into the safety zone closest to the MTV. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
- MTV”
Specification