Order-oriented flexible production dynamic scheduling system based on multi-agent

Abstract

The invention provides an order-oriented flexible production dynamic scheduling system based on multi-agent; the system comprises a process Agent, a monitoring Agent, a management Agent, a resource module and an algorithm Agent; the process Agent is used for managing product process information of the system, and providing data check services for other Agents; the monitoring Agent is used for gathering equipment work state information and analyzing faults; the management Agent is a message transfer station of the system, and used for managing all Agents; the resource module has a workshop Agent and an equipment Agent, wherein the equipment Agent is used for simulating the working progress of the equipment, and the workshop Agent is used for managing the equipment Agent that belongs to theworkshop Agent; the scheduling method and re-scheduling method of an algorithm Agent packaging system can provide computing service for other Agents. The scheduling system and method can improve the utilization rate and management level of the manufacture resources in the manufacturing industry, can fast response to abnormity factors, thus ensuring the manufacture process to be continuous, stableand efficient.

Description

technical field [0001] The invention belongs to the technical field of workshop scheduling control, and in particular relates to a multi-Agent-based order-oriented flexible production dynamic scheduling system. Background technique [0002] Modern manufacturing is facing an increasingly complex manufacturing environment, which is mainly reflected in the following points: [0003] (1) With the improvement of living standards, people pay more attention to personalized and diversified products, and customer demands become more dynamic and changeable. The production mode of enterprises is gradually based on small-batch order production or even single-piece production. Therefore, enterprises It is necessary to solve manufacturing problems such as random orders and a wide variety of products. [0004] (2) The manufacturing resources of enterprises are distributed. An enterprise may have several factories located in different geographical locations, and the workshop structure and...

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Problems solved by technology

[0006] (4) The manufacturing environment is full of uncertainties, such as rework and repair of parts that fail the test, equipment failure, shortage of raw materials, order changes, etc.

This agent group can be used as a general scheduling system, but due to the small number of agents (Agents), the division of labor is not clear, and the functions are too concentrated, which reduces the overall flexibility. Reschedules corresponding to type and impact, so less useful

[0011] To sum up, my country's current workshop scheduling system combined with various scheduling algorithms can generally generate efficient scheduling schemes, but these scheduling schemes have the following problems: (1) The resource utilization rate is not high, basically only for manufacturing enterprises with centralized production control, Did not take into account the joint manufacturing resources of factory workshops distributed in various places to carry out the decomposition and distribution of order tasks

(2) The level of information management is not high, ignoring the formal representation of production equipment and product process information, so the response to addition, deletion, checking and modification of information is not timely and flexible enough

(3) The impact of the fault on the original scheduling plan is not considered, or the type and impact of the fault cannot be fully considered to adopt a corresponding re-scheduling strategy

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