A Scheduling Method to Solve WBS Sorting Problem

A scheduling method and a technique for sorting problems, applied in the direction of program control, electrical program control, control/regulation system, etc., can solve problems such as complex constraints, delivery delays, and retention, so as to avoid frequent replacement and delivery Delay, the effect of improving production efficiency

Active Publication Date: 2021-09-03
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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Problems solved by technology

[0004] In actual production, the constraints that need to be considered in the combined WBS buffer zone are more complicated, and the size of the buffer zone is also larger. The dispatcher cannot calculate it and can only perform manual scheduling. Stuck in the buffer zone, lead time delays, increased time and production costs

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  • A Scheduling Method to Solve WBS Sorting Problem
  • A Scheduling Method to Solve WBS Sorting Problem
  • A Scheduling Method to Solve WBS Sorting Problem

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Embodiment Construction

[0039] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples of implementation.

[0040] Such as figure 1 shown. A scheduling method for solving the WBS sorting problem, comprising the following steps:

[0041] Step 1: Abstract the logic of WBS buffer W into a collection of FIFO (First In First Out) queues, expressed as n is the number of WBS buffer queues; where P i It is a FIFO queue, and the FIFO queue is divided into the following types: fast FIFO queue, common FIFO queue, return FIFO queue, specific queue, and frozen queue;

[0042] Step 2: Define Vehicle C i property, vehicle C i The attributes of include vehicle unique identifier, vehicle type, vehicle color, model, engine type, gearbox type, and off-line time; among them, the vehicle type identifies the vehicle as a special vehicle or an ordinary vehicle. Special cars or ordinary cars are set according to demand.

[0043] Step 3: Define the FI...

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Abstract

The invention relates to a scheduling method for solving the problem of WBS sorting, specifically for the whole vehicle before entering the painting workshop, under the premise of ensuring on-time delivery, not affecting the production of the painting workshop, and reducing the frequency of spraying color replacement. Car reordering problem. The steps are as follows: Step 1: Initialization; Step 2: Go to step 3 for vehicles waiting to enter the road; go to step 4 for vehicles waiting to leave the road; Step 3: calculate the only lane that meets the conditions for entering the road, perform the operation of entering the road, and go to step 5; steps 4: Calculate the only vehicle that meets the conditions to be exited, perform the exit operation, and go to step 5; step 5: update the information of each lane in the WBS buffer zone, receive the vehicle to be entered and the order to exit, and go to step 2 and step 3 respectively. The invention can solve the problems of frequent change of spraying colors in the painting workshop caused by unreasonable sorting of the WBS buffer zone, reduced production capacity and high spraying cost, avoids frequent changing of spraying colors in the painting workshop, and improves the production efficiency of the painting workshop.

Description

technical field [0001] The invention relates to a scheduling method for solving the problem of WBS sorting, specifically for the whole vehicle before entering the painting workshop, under the premise of ensuring on-time delivery, not affecting the production of the painting workshop, and reducing the frequency of spraying color replacement. Car reordering problem. Background technique [0002] The main characteristics of the market environment of my country's small automobile manufacturing industry are various varieties, small order quantities, and tight delivery dates. In order to adapt to the market environment, enhance market competitiveness, and ensure delivery time, automobile manufacturers mostly adopt the mixed-flow assembly line production mode, that is, the same production line can produce vehicles of various models and colors. Although this method helps enterprises to gain more market share, it also reduces production capacity and increases production costs virtua...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q10/04G06Q50/04G05B19/418
CPCG05B19/41865G06Q10/04G06Q10/06312G06Q10/06316G06Q50/04Y02P90/30
Inventor 原文斌彭慧史海波
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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