| 1. |
|
|
| 2. |
- Danielsson, Fredrik, 1972-, et al.
(author)
-
Control system verification by emulation : an application to off-line pressline throughput rate orpimization
- 2002
-
In: Journal of Advanced Manufacturing Systems. - 0219-6867 .- 1793-6896. ; 1:2, s. 159-172
-
Journal article (peer-reviewed)abstract
- This study is part of a research project aims at off-line programming and verification of industrial control systems. In this paper, an off-line method for press line throughput rate optimization and control system verification is proposed, implemented and evaluated. The main tool is a virtual press station, developed by the first author, consisting of an emulated control system for a feeder/extractor robot which communicates with 3D-simulated production equipment. Moreover, several virtual press stations have been coupled and synchronized in a virtual press line. An important feature of the system is that the virtual robot controller is emulated, yielding an exact representation of the control logic and the possibility to run the entire system in virtual real time. The application considered is a sheet metal forming process where it is difficult to achieve maximum capacity utilization. There is much to gain if the control logic is improved and the throughput rate is increased. For this purpose, an automated robot motion optimization method is implemented and evaluated, using the virtual press line.
|
|
| 3. |
|
|
| 4. |
- Danielsson, Fredrik, 1972-, et al.
(author)
-
Validation, off-line programming and optimisation of industrial control logic
- 2003
-
In: Mechatronics (Oxford). - 0957-4158 .- 1873-4006. ; 13:6, s. 571-585
-
Journal article (peer-reviewed)abstract
- This article proposes a classification of different methods for validation, off-line programming and optimisation of control logic. The classification is an overview of different methods available and includes advantages and disadvantages for each method. The method overview points out a superior method, control system emulation, which is the most cost-effective and flexible method. The control system emulation method is also general and may be applied to validate and optimise control logic in various applications. Further, the method is compared with several other methods for validation of industrial control systems. However the method requires a standardised system architecture. This article proposes such architecture for the control system emulation method. Here, a control system emulator has also been implemented with the specific system architecture described in this article. An application case is also provided to demonstrate an approach to the integration of a control system emulator into a virtual manufacturing system.
|
|
