Design On Distributed Control System Of Spinning Machine Based On SOC

The main stream control system of spinning machines generally based on the PLC control scheme. With the rapid development of electronic and manufacturing technology, SOC,ARM and FPGA/CPLD has been widely used in automatic control fields by its high reliability, high integration and high performance-to-price ratio,which provided the condition to improve the distributed control system of spinning machines.This paper mainly researched the application of embedded technology in the distributed control system of spinning machines.realized the commanding technique such as Host computer control module,Host computer LED display module, Lower computer data acquisition and Speed Control Module,CAN communication network and so on. In the end, the system was tested primarily.This paper introduces the spinning machine process and embedded technology in the related technical background. On the basis, the paper analysed the traditional spinning machine technology of PLC control system.Then with today's advanced technology and embedded SOC technologies, the paper put forward a new distributed control system of the spinning machine based on the SOC. This scheme used the SOC processor to complete the control demand of spinning machines with its high performance and rich resources on chip.It also intended to overcome the technical shortcomings of the traditional control method.The new scheme of control system mainly consists of three parts, namely the Host Computer Part, the Lower Computer Part and CAN Communication Network Part. The Host Computer Part is divided into two part of Host computer control module and Host computer LED display module. In accordance with the new program to design distributed control system architecture, the system is designed as one master with multiple slaves of the distributed structure.The paper not only theoretically analyzed the feasibility of this seheme but also completed the software and hardware design of Host computer control module, the software and hardware design of Host computer LED display module,the software and hardware design of Lower computer data acquisition and Speed Control Module and the software and hardware design of CAN communication network.Finally it has completed the system test. In the process of PCB layout,it also added EMC measures in the design and the feasibility of long-wiring analysis.The completed design indicated that the spinning machine control scheme based on the SOC can not only fulfill various functions, but also make up part of the traditional PLC control program's shortcomings in the spinning machine. However, this system has been designed and completed experimentally.The following work will mainly analyze the actual source of interference, EMC measures to further improve and stability testing.Xiaobai Li...