Process control system responsive to device events
US5608908A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 1995 |
| Grant date | Mar 4, 1997 |
| Priority date | — |
| Expiry date | Oct 5, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/44
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques for controlling a process which is performed at least in part by a device such as a computer operating system. The techniques involve a process server which controls the process in response to indications that steps of the process have taken place, an envelope which encloses the device and generates event messages when the device performs operations, and a translator which translates steps of the process into sequences of events and monitors the event messages. When the translator determines that a sequence of events which constitute a process step has occurred, it provides an indication that the step has occurred to the process server. In a preferred embodiment, the device is an operating system, the envelope is a dynamically-linked library of file system commands, the translator includes the Yeast event-action system, and the process server is a process control system which models entities involved in the process as objects and makes state transitions by firing rules which modify the objects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.