發(fā)布時(shí)間：2018-08-16 08:41

【摘要】：可編程控制器(PLC)是以微處理器為核心,把自動(dòng)化技術(shù)、通信技術(shù)融為一體的新型工業(yè)自動(dòng)控制裝置。作為目前提高處理器性能的主要技術(shù)。在單獨(dú)芯片上集成多個(gè)處理運(yùn)算核心,組成多核處理器(multi-coprocessor)已成為提高計(jì)算機(jī)性能的主要手段。因此,將多核處理器應(yīng)用在PLC中能夠提升PLC的性能。但是如何利用多核處理器的資源也是急需解決的問(wèn)題。CPU發(fā)展出多核處理器后,串行變成方式已無(wú)法滿足發(fā)展需要,由此人們?cè)O(shè)計(jì)出并行編程語(yǔ)言。傳統(tǒng)并行語(yǔ)言通過(guò)將程序分割成幾個(gè)進(jìn)程,然后再將進(jìn)程分配給多核CPU,從而達(dá)到提高效率的目的。在此過(guò)程中,程序員通過(guò)并行語(yǔ)言提供的并行接口,將程序模塊化、進(jìn)程化,然后編譯器將各個(gè)進(jìn)程代碼編譯,將進(jìn)程的機(jī)器碼分配到計(jì)算機(jī)系統(tǒng)空閑的核中,然后執(zhí)行。然而在現(xiàn)實(shí)的系統(tǒng)中,計(jì)算機(jī)會(huì)同時(shí)執(zhí)行多個(gè)任務(wù),會(huì)發(fā)生執(zhí)行上述并行任務(wù)的核被高優(yōu)先級(jí)的其他任務(wù)中斷,并將并行任務(wù)掛起,影響并行程序的運(yùn)行。串行程序只能在單核處理器上運(yùn)行,無(wú)法調(diào)用多核資源,因此傳統(tǒng)串行程序想要在多核平臺(tái)上利用多核資源,必須將其并行化。本文設(shè)計(jì)了一種將PLC自動(dòng)控制程序并行化的方法,該方法基于PLC程序結(jié)構(gòu)化的特點(diǎn),將程序分解成多個(gè)程序塊(Program block)。此時(shí)程序塊為PLC程序,需要將其利用并行語(yǔ)言重新描述成并行任務(wù),因此本文設(shè)計(jì)了一種多核并行語(yǔ)言。該并行語(yǔ)言利用本文設(shè)計(jì)的PSC底層核編程模型,能夠使多核程序在執(zhí)行過(guò)程中動(dòng)態(tài)調(diào)用多核資源,從而更好的利用多核處理器。本文的內(nèi)容主要有:1.提出了一種將PLC自動(dòng)控制程序并行化的方法。2.設(shè)計(jì)并實(shí)現(xiàn)了一種PSC動(dòng)態(tài)多核編程模型。3.設(shè)計(jì)并實(shí)現(xiàn)了一種并行語(yǔ)言。4.實(shí)現(xiàn)了對(duì)并行語(yǔ)言的仿真實(shí)驗(yàn)。
[Abstract]:(PLC) (Programmable Logic Controller) is a new type of industrial automatic control device which integrates automation technology and communication technology with microprocessor as its core. As the main technology to improve processor performance. The multi-core processor (multi-coprocessor) has become the main method to improve the performance of the computer by integrating several processing and computing cores on a single chip. Therefore, the application of multicore processor in PLC can improve the performance of PLC. However, how to utilize the resources of multi-core processors is an urgent problem. After the CPU develops multi-core processors, the serial mode can not meet the needs of development, so people design parallel programming language. Traditional parallel language divides programs into several processes and then allocates the processes to multi-core CPUs to achieve the purpose of improving efficiency. In this process, the programmer modulates and processes the program through parallel interface provided by parallel language, then the compiler compiles each process code, assigns the machine code of the process to the idle core of the computer system, and then executes. However, in a real system, the computer will execute multiple tasks simultaneously, and the core of the parallel tasks will be interrupted by other tasks of high priority, and the parallel tasks will be suspended, which will affect the running of parallel programs. Serial programs can only run on a single core processor and cannot call multi-core resources. Therefore, if traditional serial programs want to utilize multi-core resources on multi-core platforms, they must be parallelized. In this paper, a method of parallelizing PLC automatic control program is designed. This method is based on the structurization of PLC program, and decomposes the program into multiple blocks of (Program block). At this time, the program block is a PLC program, which needs to be redescribed as a parallel task by using parallel language. Therefore, a multi-core parallel language is designed in this paper. The parallel language uses the PSC kernel programming model designed in this paper, which can make the multi-core program dynamically call the multi-core resource in the execution process, thus making better use of the multi-core processor. The main content of this article is: 1. This paper presents a method of parallelizing PLC automatic control program. This paper designs and implements a dynamic multi-core programming model of PSC. A parallel language. 4. The simulation experiment of parallel language is realized.
【學(xué)位授予單位】：沈陽(yáng)理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TP332

【參考文獻(xiàn)】

相關(guān)期刊論文 前9條

1 劉德兒;熊證;沈敬偉;朱曉t，

本文編號(hào)：2185474