LED分光機控制系統(tǒng)設計

摘    要

本文設計介紹了LED及LED分光機的概念、現(xiàn)狀及發(fā)展趨勢，通過對分光機功能及結構的了解和學習，分清各個系統(tǒng)的主要功能任務和相互關系；對整個LED的檢測、分選流程進行初步設計，進而選擇適合的控制方式；PLC控制系統(tǒng)可靠性高，抗干擾能力強配套齊全，功能完善，適用性強；系統(tǒng)的設計、建造工作量小，維護方便、易于改造；體積小、質量輕、功耗低。將它用于分光機整個送料、檢測、分選系統(tǒng)的控制，既能滿足整個測量過程的精確性，又能實現(xiàn)給料、測量和送料過程的相互協(xié)調和配合工作；由此根據(jù)輸入輸出點的分配再對各個硬件系統(tǒng)進行具體設計和選型，完成硬件系統(tǒng)的配置；而各個系統(tǒng)的連接通過電氣圖表示，可以直接進行分光機的組裝和接線；軟件部分采用PLC梯形圖的編程方式，簡單實用，實現(xiàn)了整個LED分選系統(tǒng)的自動化。

關鍵詞：LED分光機，自動分選，PLC，硬件系統(tǒng)

ABSTRACT
 
This paper introduced the concept,the status quo and development trend of the LED and the LED sorting machine. Through the understanding and learning about the         function and structure of the LED sorting machine,we can distinguish the various systems of the main tasks and functions of mutual relations; Detection of the entire LED, the separation process preliminary design and then choose the appropriate control.The PLC control system is reliability, choose a strong anti-interference capabilities, improved function, the applicability.The system design, construction workload is small, maintenance-friendly, easy to transform small size, light weight, low power consumption.
It will be used to feed the whole machine by, detection, separation of the control system, can meet the entire process of measuring the accuracy, but also to achieve expected,  measurement and feed the process of mutual coordination and cooperation work. From the point based on input and output of the distribution to the various hardware systems for the design and selection, complete hardware system configuration. And the various systems of electrical connections through plans that can be directly carried out to the machine assembly and wiring. Some software used PLC ladder programming, is simple and practical realization of the entire LED automatic sorting system.

Key words： LED sorting machine, Auto-election, PLC, Hardware system

目   錄

中文摘要 Ⅰ
ABSTRACT Ⅱ
1緒論 1
  1.1 LED市場發(fā)展的前景……………………………………………………..1
1.2課題研究的目的和意義…………………………………………………...2
1.3 LED分光機概述…………………………………………………………3
1.3.1 分光機的原理………………………………………………………3
1.3.2 分光機的發(fā)展………………………………………………………3
1.4 LED分光機控制系統(tǒng)設計難點……………………………………………...4   
1.4.1 研究內容………………………………………………………........4
1.4.2 實現(xiàn)途徑……………………………………………………………4
2總體方案設計…………………………………………………………....5
  2.1工藝流程設計…………………………………………………………….5
    2.1.1 總流程設計………………………………………………………….5
    2.1.2 進料、送料系統(tǒng)……………………………………………………...6
    2.1.3 測試系統(tǒng)……………………………………………………………7
  2.2 控制方式的選擇…………………………………………………………..8
2.1.1 控制系統(tǒng)的選擇………………………………………………………8
2.2.2 PLC發(fā)展簡介………………………………………………………….9
2.2.3 PLC特點簡介…………………………………………………………10
   2.2.4 PLC結構簡介…………………………………………………………10
    2.2.5 PLC原理簡介…………………………………………………………13
3 具體方案設計……………………………………………………………14
  3.1硬件系統(tǒng)的組成…………………………………………………………...14
    3.1.1 硬件原理框圖………………………………………………………...14
    3.1.2 輸入輸出點分配表…………………………………………………….16
 3.2 主要元件選型……………………………………………………………...17
    3.2.1 PLC主機及擴展模塊型號選擇……………………………………………17
    3.2.2 電機及驅動器的選擇…………………………………………………..19
    3.2.3 傳感器的選擇………………………………………………………...21
    3.2.4 觸摸屏的選擇………………………………………………………...22
  3.3部分系統(tǒng)接線……………………………………………………………..23
    3.3.1 PLC與PC機的連接……………………………………………………..23
    3.3.2 電機與電機驅動器的連接………………………………………………24
4  軟件設計………………………………………………………………..24
4.1 軟件介紹…………………………………………………………25
4.2 軟件流程圖……………………………………………………….27
5  結論………………………………………………………………..28
  附錄………………………………………………………………….30
  參考文獻……………………………………………………………..31