Anomaly detection system and method

US9984543B2 · kind B2 · utility

Assignee

• Tata Consultancy Services Limited · IN

Inventors

• Parijat Deshpande · Sherghati, IN
• Ramu Reddy Vempada · Savanuru, IN
• Ranjan Dasgupta · Narayanpur, IN
• Arpan Pal · Sherghati, IN
• Dibyendu Roy · Sherghati, IN

Key dates

• Filing date: Feb 16, 2016
• Grant date: May 29, 2018
• Expiry date: Feb 16, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2291/26
• WIPO field: Control
• WIPO sector: Instruments

Abstract

An acoustic array system for anomaly detection is provided. The acoustic array system (100) performs a scan (or a progressive scan of frequencies) of a given volume by transmitting one or more signals, and receives one or more reflected signals from objects within the volume. The reflected signals are then amplified and converted to a set of digital signals. Features of the set of digital signals are extracted both in time and frequency domains. The acoustic array system (100) further performs a comparison of these set of digital extracted features with the reflected signals via machine learning techniques. Based on the comparison, the acoustic array system detects one or more anomalies.