The Application Of Actor Model To The Industrial Assembly Line Control System

Our country is one of the giant manufactory industry countries.Manufacturing industryaccounts for an increasing proportion of national output each year.However, there is still a biggap in manufacturing technology in comparison to that of industrialized countries.Therefor,our country has proposed a new path of industrialization and has listed it as one of thenational medium and long-term development areas.As the basic equipment of manufactory industry,numerical control equipment to someextend determines the level of our country’s manufacturing industry. And as the centralcontrol system of numerical control equipment,the performance of assemble line controlsystem directly determine the performance of numerical control equipment.Striving todevelop high-level assemble line control systems with independent intellectual property righthas greate significance to changing the backward state of our manufactory industry level aswell as improving the international competitiveness of our products.In computer science,the Actor model was first proposed by Hewitt in1973.Its originalintention was used to concurrent digital compution.The Actor model adopts the philosophythat everything is an actor.This is similar to the everything is an object philosophy used bysome object-oriented programming languages.However, differs in that object-orientedsoftware is typically executed sequentially, while the Actor model is inherentlyconcurrent.The Actor model is based on message passing,each actor is a thread-like entity andhas a mailbox to receive messages.Each actor operates independently and communicates witheach other through sending messages. In addition,an actor is a computational entity that, inresponse to a message it receives, can do the appropriate operation according to the previousdefinition, such as send a finite number of messages to other actors,create a finite number ofnew actors,designate the behavior to be used for the next message it receives and so on.This article is based on the implementation of Actor model by Java and apply it todevelop one of the industry assemble line control system—the personal card productioncontrol system. We researched and implemented a universal and scalable Actor model, what’s more, developed a concurrent control system for card production based on this model.Through the test of actual production, this model can integrate with the upper devicesuccessfully, constituting a high-speed and stable concurrent control system which has greatlyincreased the efficiency of the production.