Method for establishing production line control knowledge base based on object-oriented thinking

Abstract

The invention relates to a method for establishing a production line control knowledge base based on object-oriented thinking. On the basis of combination of the object-oriented thinking with the IEC61499 programming standard, a production line control knowledge base capable of realizing flexible production is established. The method comprises steps of event-driven interface definition between function blocks, establishment of a production order acquisition function block, establishment of a stop control function block, establishment of a turntable control function block, and establishment ofa process control function block. According to the invention, a continuously perfected general knowledge base is established by abstracting the underlying production line control, thereby completing production line controlling of the application layer by means of dragging and configuration. Therefore, the work load of the production staff is reduced; the work efficiency is improved; and the production flexibility is enhanced. And rapid reconfiguration of production lines in the discrete manufacturing industry is realized.

Description

technical field [0001] The invention relates to a production line control knowledge base establishment scheme based on object-oriented thinking, belonging to the field of intelligent manufacturing control. Background technique [0002] With the development of society, the production level continues to improve, and the technology update is getting faster and faster. The production mode has gradually changed from the past large-volume single-variety production to variable-batch and multi-variety flexible production. The traditional production line is facing severe challenges. How to adapt to this situation? It is an urgent problem to be solved to change the production mode and reduce the cost of switching production lines and flexible production. [0003] In the traditional production line, the construction of the production line requires multiple programmable logic controllers, and the programmable logic controller plays a vital role. The programmable logic controller has the...

AI Technical Summary

Problems solved by technology

But the code in the programmable controller has many redundancies

And when switching to a new process and reconfiguring the production line, it is necessary to rewrite the code in the programmable logic controller, which wastes a lot of time and reduces production efficiency

Moreover, the code in the programmable controller needs to be written by professional PLC programming technicians. Ordinary producers cannot participate in the customization of the production line, which greatly increases maintenance costs and reduces production profits.

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