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US 4,887,014 AGranted
Industrial robot control device
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorHisao Kato
Life of this patent
Estimating the term…
Abstract
An industrial robot control device for use in an automobile manufacturing line for instance. The device is capable of preventing incorrect or improper operations of the machines due to a voltage drop in a power source, which occurs when a plurality of machines including the industrial robots are driven simultaneously.
Claims9
A control device for controlling a plurality of machines including industrial robots provided in a single production line comprising:
- means for calculating a total amount of voltage drop caused by actuations of said machines according to respective driving programs therefor at a predetermined monitoring interval;
- means for judging whether or not the total amount of voltage drop is equal to or smaller than a predetermined level;
- means for selecting at least one of said machines so that a total amount of voltage drop caused in said selected machines is made equal to or smaller than the predetermined level, when the total amount of voltage drop caused in all of said machines exceeds the predetermined level;
- and
- means for applying drive instruction signals to said machines selected by said selecting means.
2 more elements
A control device for controlling a plurality of machines including industrial robots provided in a single production line, comprising:
- means for calculating a total amount of voltage drop caused by machines that are driven simultaneously according to drive programs for said machines at set time periods;
- means for judging whether or not the total amount of voltage drop is within a predetermined value;
- means for selecting at least one of said machines to be driven simultaneously in accordance with priority ranking of said machines and so that a total amount of voltage drop caused in said selected machines is made equal to or smaller than the predetermined level;
- and
- means for applying drive instructions to said machines selected by said selecting means.
2 more elements
Dependencies are inferred from the claim text.