The Research Of Vision Control System Based On EPLC

Thick line diameter winding machine is special equipment for the production of thick linediameter coil such as large transformers and voltage regulators. In the production process ofthick line diameter coils, due to the line diameter is thicker and its tension is bigger,it is easyto appear problems of uneven line,overlap line,leakage line and edge line is easy to wrong.But the control method of traditional programmable logic controller that adopted bytraditional thick line diameter winding machine,can only control the movement process ofwinding machines according to the static and logical control algorithm and not real-time anddynamic control the movement process of winding machine and that make the product qualityis not high. Therefore, so as to solve the line arrangement problem of the winding machine forthick line diameter coils and satisfy the production requirements of thick line diameter coilsfor large power generation projects,research and design the new-type thick line diameterwinding machines,which can autonomous intelligent feedback adjustment control accordingto its real-time movement condition,have the great practical significance.ePLC is extensibleand embedded programmable controller technology,it can make the special control systemprogrammable and is new trend of development of PLC technology.Machine visiontechnology is used more and more widely in many ways of the industrial control filed. Thesubject applies vision technology to the motion control of thick line diameter windingmachine innovatively and realize the function of intelligent feedback regulation and thenimprove the quality of products. How to design and implement a kind of thick line diametervision winding machine that based on ePLC is the major issue studied in this paper.On the basis of large experiments and research for the thick line diameter windingmachine,this paper design the thick line diameter vision winding machine system based onePLC. The system uses the concept of hardware and software co-design and that systemhardware consists of the main engine board and vision control board and drive motor and PCmachine and winding machine. System software consists of numerical control program andvision processing program and vision feedback control algorithm.The thick line diameterwinding machine realizes vision feedback control for thick line diameter winding machineunder the common action of the hardware and software system. Firstly, according to theparameters of winding maching’s master-slave axis we design numerical control layerprogram and allocate the software elements resources for logical control layer. Then, in orderto solve the problem of unable to real-time monitoring we design a small volume and low price vision module and realize the function of collection and display for the copper wiremovement information, and through the vision processing algorithm to calculate the copperwire deflection angle. Finally,according to the movement characteristics of thick line diameterwinding machine we divide its movement cycle into eight state and combine with the copperwire deflection angle that vision module real-time process,design different feedback controlstrategy for different state of winding machine.We realize the function of autonomousintelligent feedback control for the thick line diameter winding machine as the effect of thevision feedback control algorithms.System test case results show that the thick line diameter vision winding machinesystem has the function of real-time autonomous intelligent feedback adjustment control anddecreases its line arragement errors,so that it improves the quality of thick line diameter coilsand also verifies the feasibility and practicality of this design by this paper based on ePLC.