港口煤炭全自动无人化装卸控制系统的设计

发布时间：2018-02-20 06:53

本文关键词： 无人化自动装卸 PLC 上位机指令处理　出处：《燕山大学》2014年硕士论文　论文类型：学位论文

【摘要】：目前，港口自动化装卸大型设备主要依靠国外进口，近年来国内在这一领域取得了长足进步，但仍有诸多不足，本课题目的即利用PLC自动化控制对港口煤炭无人化装卸技术进行研究。本文就PLC在港口煤炭自动化装卸控制系统做了深入研究，主要探讨在无人值守的情况下，如何利用PLC及上位控制计算机实现港口煤炭的自动化装卸。首先，对港口自动化装卸的工作流程和控制方法进行方案论证和理论分析，在此基础上确定具体控制方案和实现方法。其次，深入研究了港口自动化装卸系统的大机控制策略和控制流程，在取料方式上，根据项目需求和现场情况以及PLC工作的特点设计了多种取料方案，对多种取料方案和各个方案中涉及到的细节问题进行了深入研究，不仅在理论上研究了每套方案的可行性，更重要的是验证在实际工作中每套方案的利弊和效率，综合多种因素，从中选取了最优的工作方案。然后，设计了基于PLC控制系统，完成PLC与外围各个设备连接，并编写了适合现场操作的控制软件。最后，对整机系统进行了联调，尤其是与上位计算机的协同工作方面，PLC需要完成的指令由上位计算机发出，上位计算机经过一系列分析运算，将最终指令通过传输电缆传给下位PLC，PLC接收到上位机指令，并对指令进一步处理，最终驱动完成最终动作的电动机，并且由反馈单元将反馈信息发至PLC和上位机。最终使系统工作正常，，达到预期要求。
[Abstract]:At present, port automatic loading and unloading large-scale equipment mainly rely on foreign imports. In recent years, great progress has been made in this field in China, but there are still many shortcomings. In this topic, the PLC automation control is applied to study the port coal unmanned loading and unloading technology.
In this paper, PLC's deep research on port automatic control system of coal handling is carried out. It mainly discusses how to use PLC and upper computer to realize automatic loading and unloading of port coal under unattended conditions.
First, we demonstrate and analyze the working process and control method of port automatic loading and unloading. Based on that, we set up the specific control plan and implementation method.
Secondly, in-depth study of the control strategy and control flow port automatic handling system in large machine, material, according to the requirements of the project and the site conditions and the characteristics of a variety of PLC material design, in-depth research on the details of issues involved in a variety of material plan and each scheme, not only in theory study the feasibility of each scheme, it is more important to verify the efficiency and advantages and disadvantages of each scheme in practical work, comprehensive factors, selected from the programme of work best.
Then, the PLC control system is designed to complete the connection between PLC and the peripheral equipment, and the control software suitable for the field operation is written.
Finally, the whole system was debugged, especially the collaborative work with the PC, PLC need to complete the instructions issued by the host computer, the host computer through the analysis of a series of operations, will eventually pass through the PLC command transmission cable, PLC receives a machine instruction, and further processing of instructions, motor the completion of the final action of the final drive, and the feedback unit will feedback information to the computer and PLC. The system is working properly, to achieve the desired requirements.

【学位授予单位】：燕山大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U693.3;TP273

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