{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "irregular", "bureauCode": ["026:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "Miryam Strautkalns", "hasEmail": "mailto:miryam.strautkalns@nasa.gov"}, "description": "Model-based diagnosis enables efficient and safe operation of engineered systems. In this paper, we describe two algorithms based on a qualitative event-based fault isolation framework augmented with model-based fault identification that are applied to spacecraft power distribution systems. Although based on a common framework, the fundamental difference between the two algorithms is that one uses a global model for residual generation, fault isolation, and fault identification; whereas the other uses a set of minimal submodels computed using Possible Conflicts. We describe the implementation of the two algorithms and compare their diagnosis results on a representative spacecraft power distribution system.", "distribution": [{"@type": "dcat:Distribution", "description": "8-DaigleEtAl-QED-Safeprocess2012.pdf", "downloadURL": "https://c3.nasa.gov/dashlink/static/media/publication/8-DaigleEtAl-QED-Safeprocess2012.pdf", "format": "PDF", "mediaType": "application/pdf", "title": "8-DaigleEtAl-QED-Safeprocess2012.pdf"}], "identifier": "DASHLINK_812", "issued": "2013-07-29", "keyword": ["ames", "dashlink", "nasa"], "landingPage": "https://c3.nasa.gov/dashlink/resources/812/", "modified": "2025-03-31", "programCode": ["026:029"], "publisher": {"@type": "org:Organization", "name": "Dashlink"}, "title": "Qualitative Event-based Diagnosis with Possible Conflicts Applied to Spacecraft Power Distribution Systems"}