Deadlock prevention method for flexible production of intelligent production line and application thereof

Abstract

The invention discloses a deadlock prevention method for flexible production of an intelligent production line and application of the deadlock prevention method. The deadlock prevention method comprises the following steps: constructing a first strategy, a second strategy, a third strategy and a fourth strategy, wherein the first strategy is used for eliminating redundant sub-functions of the manufacturing agent to destroy an operation loop, the second strategy is used for destroying the operation loop by utilizing the redundant manufacturing agent, the third strategy is used for destroying non-deprivation conditions by utilizing a cache agent, and the fourth strategy is used for destroying cycle waiting conditions by utilizing flow control; and the first strategy, the second strategy, thethird strategy and the fourth strategy are superposed for use according to needs, and deadlock prevention of flexible production of the production line is completed. The four deadlock prevention strategies respectively utilize different resources, do not intersect with one another, can be superposed for use, and can be comprehensively utilized, so that deadlock can be completely avoided, and deadlock prevention of flexible production of the intelligent production line is realized.

Description

technical field [0001] The invention relates to the technical field of deadlock prevention, in particular to a deadlock prevention method for flexible production of an intelligent production line and an application thereof. Background technique [0002] Intelligent manufacturing is oriented towards personalized consumer demand, and it is necessary to require intelligent production lines to be highly flexible to meet the needs of multi-variety, small-batch, and mixed-flow production of customized products. Therefore, intelligent production lines generally have redundant processing equipment and mesh material conveying paths in structure; in terms of control methods, they generally have complex resource scheduling mechanisms, dynamic reconfiguration mechanisms, and fault-tolerant mechanisms. Therefore, the demand for flexible manufacturing leads to greater complexity and uncertainty in software and hardware for intelligent production lines than traditional assembly lines. [...

AI Technical Summary

Problems solved by technology

At this time, if other products request the device, they can only wait;

[0005] 2) Inalienable condition: Before the processing of the product occupying the device is completed, the device cannot be forcibly taken away by other products, that is, it can only be released actively by the product occupying the device;

[0008] The occurrence of deadlock will inevitably cause production to stop, so that the production line can recover from deadlock. If deadlock occurs frequently, it will inevitably pose a major threat to production efficiency and production quality. Therefore, it is necessary to destroy the necessary conditions for deadlock to achieve Prevent in advance

Images