Dynamic scheduling method for getting repaired vehicle online again in welding workshop
A welding workshop, dynamic scheduling technology, applied in the direction of control/regulation system, comprehensive factory control, program control, etc., can solve problems such as affecting welding production efficiency, lack of scheduling goals, etc., to achieve short response time, simple and reliable methods, and improve production. The effect of efficiency
Pending Publication Date: 2021-08-10
CHONGQING CHANGAN AUTOMOBILE CO LTD +1
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Problems solved by technology
According to the on-site investigation, after the problematic vehicle is repaired, there are no rules for re-online. The insertion point is determined by the front-line staff, and the lack of consideration of the scheduling target will affect the efficiency of welding production
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[0025] Below in conjunction with accompanying drawing, the present invention is described in further detail:
[0026] The present invention provides a dynamic scheduling method for reworked vehicles in a welding workshop, which includes the following steps:
[0027] S1. Collect the current production sequence on the body-in-white production line, and obtain a set of insertable locations where the current reworked vehicle can be inserted into the current body-in-white production sequence;
[0028] S2. Screen out the feasible positions in the set of insertable positions, and form the feasible positions into a sequence S 1 ;
[0029] S3. Build the objective function of the sequence:
[0030] min f 1 =min{max C i}
[0031] Among them, C i is the processing completion time of body-in-white i;
[0032] S4. Calculate the sequence S 1 The objective function value of each feasible position in , and the objective function value is recorded in the set RS1, and the online position...
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The invention provides a dynamic scheduling method for getting a repaired vehicle online again in a welding workshop, which comprises the following steps of: acquiring a current production time sequence on a body-in-white production line, and acquiring an insertable position set where the current repaired vehicle can be inserted into the current body-in-white production time sequence; screening out feasible positions in the insertable position set, and forming a sequence S1 from the feasible positions; constructing an objective function of the sequence: calculating objective function values of all feasible positions in the sequence S1, recording the objective function values in a set RS1, and recording the online positions corresponding to the objective function values in a set SS1; traversing all the feasible positions; and S6, selecting a corresponding online position with the minimum objective function value from the set SS1 as an optimal online point P1. According to the method, the optimal position for getting a repaired vehicle online again can be dynamically judged according to the body-in-white production time sequence, and the production efficiency under the condition that the repaired vehicle exists is effectively improved.
Description
technical field [0001] The invention relates to a dispatching method, in particular to a dynamic dispatching method for a reworked vehicle in a welding workshop to go online again. Background technique [0002] In the welding workshop, the body-in-white undergoes welding processing through each sub-assembly in turn. After the processing is completed, it leaves the welding workshop and enters the subsequent process. In each sub-assembly station in the welding workshop, there are 1 or 2 offline stations for repairing welding problems. During the processing, when there is a need for repair, the car body will go off the production line from the automatic production line and go to the offline manual repair point for manual repair. After the repair is completed by the on-site staff, the vehicle will be reinserted into the production queue on the line. According to the on-site investigation, after the problematic vehicle is repaired, there are no rules for re-online. The insertio...
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IPC IPC(8): G05B19/418
CPCG05B19/41865G05B2219/32252Y02P90/02Y02P90/80
Inventor 颜先洪赵仁茂王娟娟陈喜艳罗海波刘联超罗超
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD