tciaccio@hal.cdc.com (tom ciaccio) (03/21/89)
I'm interested in any products that do diagnosis of electronic devices
given a functional model of the device's parts. Some time ago there
was a product called IN-ATE. Does anyone know what happened to this
product? Is anyone out there using it? Are there any other products
or interesting work in this area? Or should I stick to rule-based
implementations for real-world troubleshooting problems? What's been
everyone's experience?
---
Thomas R. Ciaccio, Control Data Corporation
2800 E. Old Shakopee Road, m/s HQM234
Bloomington, MN. 55425
EMail address - tciaccio@shamash.cdc.comclutx.clarkson.edu (collins anthony g,,,) (03/22/89)
From article <11936@shamash.cdc.com>, by tciaccio@hal.cdc.com (tom ciaccio): > I'm interested in any products that do diagnosis of electronic devices > given a functional model of the device's parts. Some time ago there > was a product called IN-ATE. Does anyone know what happened to this > product? Is anyone out there using it? Are there any other products > or interesting work in this area? Or should I stick to rule-based > implementations for real-world troubleshooting problems? What's been > everyone's experience? > > --- > Thomas R. Ciaccio, Control Data Corporation > 2800 E. Old Shakopee Road, m/s HQM234 > Bloomington, MN. 55425 > EMail address - tciaccio@shamash.cdc.com ACES learns heuristics for fault diagnosis from device descriptions. The references are Pazzani, M. Refining the Knowledge base of a diagnostic expert system an application of failure driven learning. Proceedings of the National Conference on Artificial Intelligence.American Association for Artificial Intelligence. Pazzani,M. Explanation based learning for knowledge based systems Int. Joornal of Man-Machine Studies(1987)26,413-433. I have no personal experience with these. I happened to have these refs,that's all. Please put a summary when you have received enough replies. Arun
funk@falcon.SRC.Honeywell.COM (Harry Funk) (03/30/89)
> I'm interested in any products that do diagnosis of electronic devices > given a functional model of the device's parts. [stuff deleted] > Are there any other products or interesting work in this area? Or > should I stick to rule-based implementations for real-world > troubleshooting problems? What's been everyone's experience? > > --- Thomas R. Ciaccio, Control Data Corporation > 2800 E. Old Shakopee Road, m/s HQM234 > Bloomington, MN. 55425 EMail address - > tciaccio@shamash.cdc.com > We've been working about four years on a large model-based system for the Air Force called Flight Control Maintenance Diagnostic System. It's for F-16 flight controls, a quad-redundant fly-by-wire system. Our model covers the entire flight control system, 43 line replaceable units (LRUs) containing over 800 sub-lrus (not to mention the signals, panels, cables, ....) Total is about 6000 frames. We started working in KEE, but as the model grew, we've moved out of that environment for everything but authoring the model. It's in field test now at McDill AFB. It runs on a Compaq 386/20 PC compatible, and we're moving to host it on a laptop. We've been pretty happy (bias? Ha!) with the model-based approach, since it's easy to build tools to check the validity of the model, something that rule-based approaches have a notoriously tough time doing (and something that is of paramount importance to the AF). We've used the same approach for factory testing of production line products such as torpedos, and are currently using it for commercial avionics and on Space Station. It's also credible to say that this model-based system will run in real-time, (see AI Magazine, Spring '88 for a discussion of real-time rule-based systems and their roadblocks), since it has a guaranteed response (cycle) time, after which it has an answer which incrementally improves with more cycles (more information). Harry A. Funk Voice: (612)-782-7396 Honeywell Systems and Research Center Inet: funk@src.honeywell.com 3660 Technology Dr. MS:MN65-2400 UUCP: funk@srcsip Minneapolis, MN 55418 Bang: {umn-cs,ems,mmm}!srcsip!funk