PURPOSE: To improve working efficiency by simulating conveyance and determining the conveyance sequence so that the required time till the completion of conveyance is made shortest if there are no conveyance candidates whose permissible waiting time for conveyance determined by an evaluation function is below the prescribed value.
CONSTITUTION: A control device 62 for conveyor operation registers the conveyance candidates in a conveyance candidate table when the request for conveyance from each monitor device 9S, etc. is emitted in accordance with the data relating to the present position of each steel pipe applied from a control device 61 for the entire part and the data relating to the operating condition of each working and treating device 9, each conveying machine 4, etc. The device 62 evaluates the emergency degree, etc. of the conveyance of each registered conveyance candidate by the evaluation equation. The device instructs immediately the conveyance if there is the candidate requiring emergent conveyance as a result of such evaluation. The device simulates the conveyance, determines the conveyance sequence of the conveyance candidates to minimize the required time and applies the same to a conveyance control device 66 is there are no candicates requiring the emergent conveyance.
UEDA NORIO
TATSUWAKI MASAO
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