Application of the multiple fieldbus technology in the rapier loom control

SI Niu1, TANG Li-jun1, WU Ding-xiang2, HE Hui-yong1, LI Tao1, ZHANG Chang1

(1.School of Physics and Electronic Science, Changsha University of Science and Technology, Changsha 410004, China; 2. Changsha Yi Xu Mechanical and Electrical Technology Company, Changsha 410004, China)

Abstract: In order to realize the high speed and accurate transmission of the communication data in the loom control and to solve the problem of the communication reliability in the rapier loom control system, the modular design, the multi-CPU distributed clusters control mode and multiple fieldbus communication technologies was investigated in the loom control, using STM32F207 as main CPU, STM32F103 as the slave CPU, FPGA as the co-processor of the main CPU was to improve the speed of the loom.After the analysis of the communication scheme of the internal module and the multi-loom in the loom control system, a method was presented to the SPI communication in the module, the full duplex serial asynchronous communication in each modules, the CAN communication in Electric control cabinet and work station, and the wireless communication in the multi-loom control system. The scheme was used in the rapier loom control system of a textile factory to guarantee the stability, high speed and reliability service of the rapier loom control system. The experimental results show that the loom control system uses the multiple fieldbus communication mode, the communication data transmission has high-speed and is accuracy, the running speed of the loom can reach 700r/min, the filling yarn rate is 1300m/min, and can realize the multi-loom remote management.

Key words: rapier loom; distributed cluster control; ZigBee wireless network