Integrated Scheduling Model for Cranes, ASC and SP-AS/RS in Automated Terminal

Grouping the similar processes is a good approach to improve the manufacturing efficiency, however, which is facing with two difficulties of the group automation and the constraints coupling. Regarding the numerical control (NC) machines and tasks as a grid system, this paper proposes a similarity-based tactic to solve the above difficulties. First, the methodology for analyzing the similarity among NC tasks is proposed to implement group automation taking the similarity principle as theory foundation. Second, based on the results drawn from the first step, the complex constraints including similarity constraints, delivery date constraints, and serial constraints are coupled to develop an integrated scheduling model. Finally, the integrated model is solved and the optimum solution is gotten using a specialized ants algorithm.

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Research on Integrated Scheduling Model of Automated High-Rise Warehouse and Traditional Flat Storehouse for Cigarette Distribution Center

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.65.99 ◽

2011 ◽

Vol 65 ◽

pp. 99-103

Author(s):

Xin Shun Tong ◽

Li Hua Yang

Keyword(s):

Storage Capacity ◽

Operating Time ◽

Distribution Center ◽

Market Demand ◽

High Rise ◽

Integrated Scheduling ◽

Scheduling Model ◽

Intelligent Management ◽

Working Efficiency

Along with the market demand increasing, cigarette distribution center urgently needs to improve their working efficiency by reasonable storage modeal. This paper proposed an integrated scheduling model of automated high-rise warehouse combined with traditional flat storehouse, by planning the storage capacity in traditional flat storehouse and optimizing the storage spaces in automated high-rise warehouse, ensuring intelligent management while achieving flexible storage operations. This model effectively shortened the operating time compared to other storage models. Finally take Zhengzhou Cigarette Distribution Center as an example to analyze.

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Study on integrated scheduling model of CHP including wind power, electric boiler and phase change thermal storage station

2018 Chinese Control And Decision Conference (CCDC) ◽

10.1109/ccdc.2018.8407876 ◽

2018 ◽

Author(s):

Jun Li ◽

Tingxu Gao ◽

Song Guo ◽

Qingqi Zhao ◽

Pengpai Feng ◽

...

Keyword(s):

Phase Change ◽

Wind Power ◽

Thermal Storage ◽

Integrated Scheduling ◽

Scheduling Model ◽

Storage Station ◽

Electric Boiler

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Integrated Scheduling of the Job and AGV for Flexible Manufacturing System

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.80-81.1335 ◽

2011 ◽

Vol 80-81 ◽

pp. 1335-1339 ◽

Cited By ~ 1

Author(s):

You Long Lv ◽

Gong Zhang ◽

Jie Zhang ◽

Yi Jun Dong

Keyword(s):

Genetic Algorithm ◽

Flexible Manufacturing ◽

Manufacturing System ◽

Job Scheduling ◽

Mathematic Model ◽

Integrated Scheduling ◽

Scheduling Model ◽

Problem Description ◽

Equipment Utilization ◽

Moving Path

Job scheduling and AGV scheduling in FMS are regarded as two independent problems by most researchers. Their isolation ignores AGV’s use conflicts in the job scheduling and leads to low average equipment utilization. We point out the necessity for the job scheduling to integrate with AGV scheduling through analyzing scheduling problem of a specific type of FMS with single AGV and single buffer area. Then a corresponding mathematic model for integrated scheduling is presented based on the problem description and constraints for scheduling. A specific FMS is adopted to validate this integrated scheduling model. Based on data from this FMS, the model is performed through genetic algorithm with appropriate parameters. And job’s processing sequences as well as AGV’s moving path are obtained from the optimal gene order. The experiment result of this scheduling model adopting genetic algorithm shows good computing efficiency and equipment utilization.

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