Abstract
The control system of the traditional automatic spreader with complex structure and inconvenient servicing is designed based on MCU, and the new control system is designed based on the embedded system. Based on the analysis of the work process and work principle for the automatic spreader, we put forward the new scheme to improve the design of the control system for traditional spreader and design the hardware structure and relative software. The new control system can not only actualize the automatic control for the spreader and possess many functions such as spreading tier setup and automatic cloth edge alignment, but also possess the functions including network and system extension and effectively reduce the price of automatic spreader, and the improved spreader will possess stronger functions, more convenient operation and simpler maintenance.
Highlights
The automatic spreader should possess functions such as treading, cloth coiling, work state display, cloth edge automatic alignment, automatic rising of cutting knife, cutting, automatic counting and terminal checking, and realize the tension free spreading
ARM9 series embedded processors possess 32 bits operation ability, powerful function and abundant interfaces, and they can realize the functions of the traditional large-sized control system, even workstation based on lower costs (Wayne, 2002, P.30-37)
The operating system and application software are stored in the ROM of main control board
Summary
The work of spreader must accord with the requirement of cutting technology, and implement spreading according to the layout length and the planned cutting quantity (Sun, 1994, P.1-3). The automatic spreader should possess functions such as treading, cloth coiling, work state display, cloth edge automatic alignment, automatic rising of cutting knife, cutting, automatic counting and terminal checking, and realize the tension free spreading. The control system function requirements of spreader should include following aspects
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