A New Type of Embedded Autolevelling Control System based on ARM Microcontroller for Carding Machine

Autolevelling control system plays an important role in carding machine to ensure high quality of output sliver. Currently industrial-grade personal computer (IPC) control is the most prevalent form for autoleveller. With the development of semiconductor and integrated circuit (IC) technology, embedded system based on highly integrated microcontroller unit (MCU) shows great potential in traditional industrial control. A new type of carding machine autolevelling control system based on 32 bit ARMTTDMI-cored MCU is proposed to replace the former IPC control unit. First, IPC control system for carding machine is presented, and then the new ARM-based embedded autolevelling control system are discussed in details, including hardware structure, function modules, software structure and some key technologies. Comparison of these two types of control system is also given. This new type of autoleveller has been put into practical use and shows excellent performance in control precision and reliability, together with its smaller size, lower cost and lower power consumption against IPC control system