A fault location system for a time of flight detector array

✍ Scribed by D.E. Hall; A. Agogino; W.H. Greiman; W.F. Johnston; D. Olson; R. Paasch; A. Padgaonkar; D.W. Robertson

• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 315 KB
• Volume: 57
• Category: Article
• ISSN: 0010-4655
• DOI: 10.1016/0010-4655(89)90272-5

✦ Synopsis

We describe a fault location system currently under development at Lawrence Berkeley Laboratory for the HISS Time of Flight Wall. The system identifies malfunctioning components by monitoring the detector output channels. For single component failures, a fast simple, lookup procedure reduces the number of suspected components to at most three Out of 2500 possible. The system remembers failed components, so that it continues to locate new failures,even when several components are in a failed state. The system can also handle partial component failures such as might be caused by the partial failure of a large power supply module. The approach shows promise for more complex detector systems. Plans for a rule-based, "expert system", analysis to further narrow the list of suspected components are presented.