ROBOTICS, MACHINE theory, AUTOMATIC control of electric drives, SYNCHRONIZATION, ELECTRIC controllers, and ELECTRIC motors
This paper presents a solution for universal multidrive control system, which can be used as a base for the rapid prototyping of various kinematic structures, particularly in robotics, for multiple-axis synchronization tasks, or as a test bed for verification of modern control algorithms for electric drives. The example of the practical application of the proposed system was also given: It was used during prototyping process of a quadruped walking robot, powered by multiple electric motors. The abilities and performance of the system were verified with the attempt to realize the dynamic gait of the robot. [ABSTRACT FROM PUBLISHER]
Wallander, A., Di Maio, F., Journeaux, J.-Y., Klotz, W.-D., Makijarvi, P., and Yonekawa, I.
IEEE Transactions on Nuclear Science. 8/2/2011 Part 1 Part 1, Vol. 58 Issue 4, p1433-1438. 6p.
MACHINE theory, COMPUTER software, COMPUTER architecture, CLIENT/SERVER computing, NUCLEAR reactors, SIGNAL processing, FEEDBACK control systems, and REAL-time control
The control system of ITER consists of thousands of computers processing hundreds of thousands of signals. The control system, being the primary tool for operating the machine, shall integrate, control and coordinate all these computers and signals and allow a limited number of staff to operate the machine from a central location with minimum human intervention. The primary functions of the ITER control system are plant control, supervision and coordination, both during experimental pulses and 24/7 continuous operation. The former can be split in three phases; preparation of the experiment by defining all parameters; executing the experiment including distributed feed-back control and finally collecting, archiving, analyzing and presenting all data produced by the experiment. We define the control system as a set of hardware and software components with well defined characteristics. The architecture addresses the organization of these components and their relationship to each other. We distinguish between physical and functional architecture, where the former defines the physical connections and the latter the data flow between components. In this paper, we identify the ITER control system based on the plant breakdown structure. Then, the control system is partitioned into a workable set of bounded subsystems. This partition considers at the same time the completeness and the integration of the subsystems. The components making up subsystems are identified and defined, a naming convention is introduced and the physical networks defined. Special attention is given to timing and real-time communication for distributed control. Finally we discuss baseline technologies for implementing the proposed architecture based on analysis, market surveys, prototyping and benchmarking carried out during the last year. [ABSTRACT FROM AUTHOR]