Keywords multi-axis machine tools, distributed systems, manipulators
Start Date: 16-JAN-89 / Duration: 48 months
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The objective of IDRIS is to enhance the capabilities, performance and cost-effectiveness of multi-axis machinery by the application of distributed systems techniques at the level of intelligent drives, motor systems and smart power conversion. The project aims to make the following improvements in the domain of feed and servo drives:
A main theme within IDRIS is the extension of real-time digital control technology from the CNC level through to the current control level, using digital communications to link the various levels. In doing so, the control structure becomes much more open, accessible and flexible, leading to the opportunity to improve drive performance through more intelligent control, with control and decision processes distributed across levels for the best effect. This work involves the development of a modular, open architecture with standard interfaces, allowing easy optimisation of drive systems for varying requirements.
The use of simulation is a key feature of the IDRIS approach, featuring the development of specialised easy-to-use simulation software that can be used to test control strategies and their effect on performance.
In order to provide a realistic test-bed which will be able to demonstrate and measure the benefits of the IDRIS prototypes, the project will build a machine designed specially for this purpose. This test-bed demonstrator will be complemented by visual aids intended to promote awareness of the results of the project.
The demonstrators will feature a System Management Station designed to allow development, testing or commissioning engineers to view the behaviour of the system and to access the various control parameters for tuning and optimisation purposes.
A number of benefits to the end-user will be demonstrated by the end of the project, such as the implementation of friction compensation techniques to overcome, for example, quadrant transition errors during circular interpolation, and the ability to change speed controller settings in real time to demonstrate the handling of known load-shock disturbances.
The area of machine-tool drives and their associated control equipment has been a rather specialised one, and machine-tool users are under increasing pressure to improve throughput and quality. The incorporation of software and integrated circuit technology in a vendor-independent manner will broaden the market for IT within this expanding sector. The targeted results are much in demand in the machine-tool and robotics industries, and a considerable market potential for the development is foreseen by the project partners.
MARI COMPUTER SYSTEMS LTD
Boldon Business Park
High-Tech Village, Boldon
UK - TYNE & WEAR NE35 9PE
tel: + 44/ 91-519-1991
fax: + 44/ 91-519-1990
MARI APPLIED TECHNOLOGIES LTD - UK - C
NADA CONSULTING GROUP - UK - P
ROBERT BOSCH GMBH - D - P
UNIVERSITY OF NEWCASTLE-UPON-TYNE - UK - P
IDRIS - 2656, December 1993
please address enquiries to the ESPRIT Information Desk
html version of synopsis by Nick Cook