MUMBAI, India, April 20 -- Intellectual Property India has published a patent application (202421078734 A) filed by Tata Consultancy Services Limited, Maharashtra, on Oct. 16, 2024, for 'methods and systems for multi-frequency fusion for localization of impact induced soundwaves of target machine.'
Inventor(s) include Swain, Amit; Biswas, Mayukh; Rakshit, Raj; and Bhaumik, Chirabrata.
The application for the patent was published on April 17, under issue no. 16/2026.
According to the abstract released by the Intellectual Property India: "The disclosure generally relates to methods and systems for multi-frequency fusion for localization of impact induced soundwaves of a target industrial machine. Conventional wideband beamforming-based techniques accurately localize the impact hotspots, however with increased computational time while beamforming-based techniques reduce the computation time but worsens the localization accuracy. In the present disclosure, a composite acoustic map and a single-tone acoustic map of each of the one or more single frequencies obtained at each predefined frequency interval, are generated based on geometric parameters and a characteristic sound signal. Then, the one or more localization regions associated with each experimental trail that are common to the composite acoustic map and the single-tone acoustic map are determined. Lastly an optimal frequency range is determined using a localization loss function, a Kalman filtering technique, and a probability distribution function based on the localization regions, for localization of impact hotspots."
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