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1.发明授权公开(公告)号：US12018989B2
公开(公告)日：2024-06-25
申请号：US17436062
申请日：2020-04-21
Applicant: Tata Consultancy Services Limited
Inventor： Arijit Sinharay , Rajat Kumar Das , Anwesha Khasnobish , Tapas Chakravarty , Arpan Pal
CPC classification number: G01K11/24 , G01K3/06 , G01K13/026 , G01K11/26
Abstract: Temperature measurement is an important part of many potential applications in the fields of metallurgy. Conventional temperature measurement methods do not provide accurate and precise average temperature of fluid inside an enclosed chamber. The present disclosure provides multi-sensory techniques for measuring average temperature of mixed fluid inside a chamber. The average temperature is measured based on acoustic interferometry technique on standing wave and inputs received from one or more sensors and radar. The present disclosure utilizes radar to compensate the effect of fumes, noise based on Doppler effect. Further, the inputs received from the one or more sensors are used to determine the concentration of one or more fluids present in the chamber. The method of proposed disclosure depends on the principle of dependence of temperature on sound speed in fluid. So, measurement of sound speed can be mapped to report average temperature of mixed fluid inside the chamber.
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公开(公告)号：US11668621B2
公开(公告)日：2023-06-06
申请号：US17453031
申请日：2021-11-01
Applicant: Tata Consultancy Services Limited
Inventor： Arijit Sinharay , Gitesh Kulkarni , Abhijeet Gorey , Chirabrata Bhaumik , Tapas Chakravarty , Arpan Pal
Abstract: Fluids are normally transported from one place to another through pipelines. It is essential to monitor the pipeline to avoid leakage or theft. It is expensive and not feasible to install cameras and sensors along the whole length of the pipeline. A system and method for inspecting and detecting fluid leakage in a pipeline has been provided. The system is using vibration sensors along with pressure sensors to detect the leakage or theft along with the exact location of the leakage or theft. The pressure sensors are mounted on the pipeline so that the fluid touches the diaphragm of the pressure sensors to sense the wave generated due to leakage. The vibration sensors are mounted on top of the pipeline surface and on the nearby ground to eliminate general noise conditions. Moreover, two pressure sensors are also installed at opposite sides to pinpoint the leakage location.
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公开(公告)号：US20210022713A1
公开(公告)日：2021-01-28
申请号：US16827743
申请日：2020-03-24
Applicant: Tata Consultancy Services Limited
Inventor： Anwesha Khasnobish , Raj Rakshit , Arijit Sinharay , Tapas Chakravarty
Abstract: This disclosure relates generally to bio-signal detection, and more particularly to method and system for non-contact bio-signal detection using ultrasound signals. In an embodiment, the method includes acquiring an in-phase I(t) baseband signal and a quadrature Q(t) baseband signal associated with an ultrasound signal directed from the sensor assembly towards the target. Magnitude and phase signals are calculated from the in-phase and quadrature baseband signals, and are filtered by passing through a band pass filter associated with a predefined frequency range to obtain filtered magnitude and phase signals. Fast Fourier Transformation (FFT) of the filtered magnitude and phase signals is performed to identify frequency of dominant peaks of spectrum of the magnitude and phase signals in the ultrasound signal. Value of the bio-signal associated with the target is determined based on weighted values of the frequency of the dominant peaks of the magnitude and phase signals.
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公开(公告)号：US10571290B2
公开(公告)日：2020-02-25
申请号：US15650454
申请日：2017-07-14
Applicant: Tata Consultancy Services Limited
IPC: G01C21/34 , G08G1/0967
Abstract: A method and system is provided for vehicle speed profile generation. The method is performed by receiving data pertaining to driver characteristics and characteristics of trips taken by said driver, creating driver profile by generating skill and aggression parameters for said driver, constructing trip parameters pertaining to said trips taken by the driver by processing the skill and aggression parameters, constructing acceleration dataset for said trips, constructing speed values from the acceleration dataset and processing the speed values for anomalies.
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公开(公告)号：US10475256B2
公开(公告)日：2019-11-12
申请号：US15371930
申请日：2016-12-07
Applicant: Tata Consultancy Services Limited
Abstract: The disclosure generally relates to vehicle maintenance and more particularly to methods and systems for automatic vehicle maintenance scheduling. The method comprises obtaining acceleration data at a fixed sampling rate of a moving vehicle when the moving vehicle attains at least a pre-determined speed for a pre-determined time from start of the moving vehicle. The obtained acceleration data is processed to generate jerk energy values at predetermined intervals. Speed normalized jerk energy is computed based on an average of the generated jerk energy values and average speed of the moving vehicle. A relationship between journey number and the computed speed normalized jerk energy is computed. A vehicle maintenance indicator based on the computed relationship between the journey number and the computed speed normalized jerk energy is finally computed.
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Patent Agency Ranking
公开(公告)号：US20180220934A1
公开(公告)日：2018-08-09
申请号：US15809403
申请日：2017-11-10
Applicant: Tata Consultancy Services Limited
Inventor： Raj RAKSHIT , Arijit Sinharay , Parijat Dilip Deshpande , Tapas Chakravarty , Arpan Pal , Deb Kumar Ghosh , Shreyasi Datta
CPC classification number: A61B5/097 , A61B5/0004 , A61B5/0803 , A61B5/087 , A61B5/091 , A61B5/7203 , A61B5/7242 , A61B5/725 , A61B5/7267 , A61B5/7275 , A61B5/7278 , A61B2562/0204
Abstract: A pulmonary health monitoring system aims at assessing pulmonary health of subjects. Conventional techniques used for pulmonary health monitoring are not convenient to the subjects and needs considerable cooperation from the subjects. But, there is a challenge in utilizing the conventional devices to the subjects not capable of providing considerable cooperation. The present disclosure includes a blow device applicable to all kind of subjects and doesn't need cooperation from the subjects. Further, in the present disclosure, the blow device generates a phase shifted signal corresponding to a breathe signal and the phase shifted signal is further processed to extract a set of physiological features. Further, pulmonary health of a subject is analyzed by processing the set of physiological features based on a ridge regression based machine learning technique.
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公开(公告)号：US09702703B2
公开(公告)日：2017-07-11
申请号：US15074641
申请日：2016-03-18
Applicant: Tata Consultancy Services Limited
CPC classification number: G01C21/165 , B60W40/09 , G07C5/0816
Abstract: This disclosure relates generally to data processing, and more particularly to a system and method for monitoring driving behavior of a driver. In one embodiment, a system (102) for monitoring driving behavior of a driver is disclosed. The system (102) may configure a processor (202) to execute computer-readable instructions (208) stored in a memory (206) in order to: capture a plurality of acceleration samples; compute Kurtosis values and Skewness values corresponding to a set of acceleration samples; filter the Kurtosis values; determine a probability distribution function of the filtered Kurtosis values; compute a mean and a standard deviation associated with the filtered Kurtosis values; determine a first threshold for each driver based upon the mean and the standard deviation; compute a first score for each driver based upon the first threshold and the number of trips; determine a second threshold; compute a second score for each driver based upon the second threshold and the number of trips; and evaluate driving behavior of a driver based upon the first score and the second score.
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公开(公告)号：US12274536B2
公开(公告)日：2025-04-15
申请号：US16946718
申请日：2020-07-01
Applicant: Tata Consultancy Services Limited
Inventor： Sanjay Madhukar Kimbahune , Sujit Raghunath Shinde , Arpan Pal , Sundeep Khandelwal , Tanuka Bhattacharjee , Shalini Mukhopadhayay , Rohan Banerjee , Avik Ghose , Tapas Chakravarty
Abstract: Embodiments herein provide a system and method for screening and monitoring of cardiac diseases by analyzing acquired physiological signals. Unlike state of art approaches that consider only synchronized ECG and PPG signals for cardiac health analysis and do not consider PCG which is a critical signal for CAD analysis, the system synchronously captures physiological signals such as photo plethysmograph (PPG), phonocardiogram (PCG) and electrocardiogram (ECG) from subject(s) and builds an analytical model in the cloud for analyzing heart conditions from the captured physiological signals. The system and method provides a fusion based approach of combining the captured physiological signals such as PPG, PCG and ECG along with other details such as subject clinical information, demography information and so on. The analytical model is pretrained using ECG. PPG and PCG along with metadata associated with the subject such as demography and clinical information.
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公开(公告)号：US12235225B2
公开(公告)日：2025-02-25
申请号：US18185476
申请日：2023-03-17
Applicant: Tata Consultancy Services Limited
Inventor： Arijit Chowdhury , Anwesha Khasnobish , Smriti Rani , Achanna Anil Kumar , Soumya Chakravarty , Arpan Pal , Tapas Chakravarty
IPC: G01N22/02 , G01S7/41 , G01S13/532 , G01S13/90
Abstract: This disclosure relates generally to material quality inspection. Conventional approaches available for material quality inspection are unable to address concerns of complexity and cost involved. The technical problem of occluded object detection and material quality inspection for intrinsic defects identification is addressed in the present disclosure. The present disclosure provides a system and method for non-intrusive material quality inspection using three-dimensional monostatic radar based imaging, where the object under inspection undergoes a circular translation motion on a rotating platform. A modified delay-and-sum (m-DAS) algorithm is built by incorporating virtual antenna array to obtain a 3D image reconstruction of the object. From 3D reconstructed images, radial displacement as well as the angular locations of the object is identified which are further used for quality inspection of the material comprised in the object.
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公开(公告)号：US11802801B2
公开(公告)日：2023-10-31
申请号：US17112414
申请日：2020-12-04
Applicant: Tata Consultancy Services Limited
Inventor： Arijit Sinharay , Rajat Kumar Das , Anwesha Khasnobish , Tapas Chakravarty
Abstract: This disclosure relates to a system and method for measuring average temperature of mixed fluid in an enclosed chamber. Measurement is based on two independent principle as measuring variation in acoustic wave velocity and variation in resistivity that works on a single setup. First principle is based on measuring acoustic wave velocity in a known medium, which is isolated from the surrounding. The system comprises a primary pipe and a secondary pipe, wherein the ends of the pipes reside inside the enclosed chamber. The primary pipe is made out of good conductor of heat and filled with air. Ends of the primary pipe is fitted with a transducers have one transmitter at one end and one receiver at another end. Average temperature of the mixed fluid is measured based on the variations in sound velocity of acoustic wave passed through the primary pipe and resistivity variations of the primary pipe.
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