Title :
Asynchronous measurement and control: motor synchronization for mailing systems
Author :
Heemels, W.P.M.H. ; Gorter, R.J.A. ; van den Bosch, P.P.J. ; Weiland, S. ; Hendrix, W.H.A.
Author_Institution :
Dept. of Electr. Eng., Eindhoven Univ. of Technol., Netherlands
Abstract :
Concerns mailing systems that automatically assemble mailings consisting of several brochures. The main component of the mailing (e.g. a book or a magazine) enters the conveyor belt (lug chain) at the loader module. Several supplements are added to the main product by a feeder module consisting of sheet-feeders. Sheet-feeders basically grab a brochure from a stack and put it on the conveyor belt (the master in this case). The main product, together with the supplements, form a package that is wrapped in plastic foil by a packaging module. The foil is supplied by a reel stand. Incorrect packages are removed at the rejection module. Finally, the product is released after which an address is printed on it, using a label or directly, via an inkjet printer. After this the product is put on a stack. The paper describes the control of the system, which involves synchronization between one master (the conveyor belt) and many slaves
Keywords :
assembling; conveyors; mailing systems; packaging; synchronous motors; address printing; asynchronous control; asynchronous measurement; brochures; conveyor belt; feeder module; loader; lug chain; mailing systems; mailings; motor synchronization; packaging module; plastic foil wrapping; reel stand; rejection module; sheet-feeders; supplements; Belts; Control systems; Electrical equipment industry; Electrical products industry; Hybrid power systems; Master-slave; Plastic packaging; Position measurement; Pulse measurements; Sensor systems;
Conference_Titel :
American Control Conference, 2001. Proceedings of the 2001
Conference_Location :
Arlington, VA
Print_ISBN :
0-7803-6495-3
DOI :
10.1109/ACC.2001.945976
