A multi-mode filtering technique to assure real-time data sharing in information and control system
Katsumi Kawano, Shigetoshi Sameshima, Yoshiaki Adachi, Norihisa Komoda · IEEJ Transactions on Industry Applications · 2002
We propose a multi-modal information filtering technique for attaining dependable and free access to heterogeneous data in decentralized information and control systems. It takes into consideration the difference in the quality of the information on control schedule, management data for real-time control, and so on. The architecture extends the conventional model called data field (DF). In order to prevent the turbulence from an information system affecting a real-time control system, the developed architecture and technique enable to limit the multicasting range of a message respectively on DF, Multi-Cast Group (MCG) and Mode, and a DF can provide plurality of network segments as the information sharing media. Moreover, It is shown that the information filtering technique can also treat the conventional online test method systematically. The developed architecture has been applied to various real industrial production systems and its effectiveness been verified.