{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11307569","patent":{"patent_number":"US-11307569","title":"Adaptive sequential probability ratio test to facilitate a robust remaining useful life estimation for critical assets","assignee":null,"inventors":[],"filing_date":"2019-02-21T00:00:00.000Z","publication_date":"2022-04-19T00:00:00.000Z","cpc_codes":["G06Q","G05B","G06F","G06N","G06N","G06N","G05B","G06F"],"num_claims":20,"abstract":"The system receives a set of present time-series signals gathered from sensors in the asset. Next, the system uses an inferential model to generate estimated values for the set of present time-series signals, and performs a pairwise differencing operation between actual values and the estimated values for the set of present time-series signals to produce residuals. The system then performs a sequential probability ratio test (SPRT) on the residuals to produce SPRT alarms with associated tripping frequency (TF). While the TF exceeds a TF threshold, the system iteratively adjusts sensitivity parameters for the SPRT to reduce the TF, and performs the SPRT again on the residuals. The system then uses a logistic regression model to compute a risk index for the asset based on the TF. If the risk index exceeds a threshold, the system generates a notification indicating that the asset needs to be replaced."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Adaptive sequential probability ratio test to facilitate a robust remaining useful life estimation for critical assets","description":"The system receives a set of present time-series signals gathered from sensors in the asset. Next, the system uses an inferential model to generate estimated values for the set of present time-series ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11307569","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-11307569","citation_suggestion":"Patentable. \"Adaptive sequential probability ratio test to facilitate a robust remaining useful life estimation for critical assets\" (US-11307569). https://patentable.app/patents/US-11307569","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11307569","json":"https://patentable.app/api/llm-context/US-11307569","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T20:59:45.657Z"}