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1.发明公开
公开(公告)号：EP3734223A1
公开(公告)日：2020-11-04
申请号：EP20171099.3
申请日：2020-04-23
Applicant: STMicroelectronics Inc.
Inventor： JAIN, Mahaveer , CHOWDHARY, Mahesh
Abstract: A method uses a device including microelectromechanical systems (MEMS) sensors in vehicle and pedestrian dead reckoning in conditions where Global Positioning System (GPS) signals or Global Navigation Satellite System (GNSS) signals are lost. The device is capable of tracking the location of the device after the GPS/GNSS signals are lost by using MEMS sensors such as accelerometers and gyroscopes. By calculating a misalignment angle between a sensor frame of the device with either the movement direction of the vehicle or the walking direction of a pedestrian using the MEMS sensors, the device can accurately calculate the location of a user of the device even without the GPS/GNSS signals. Accordingly, a method capable of tracking the location of a pedestrian and a user riding in a vehicle without utilizing GPS/GNSS signals can be provided.
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公开(公告)号：EP3734224A3
公开(公告)日：2021-01-06
申请号：EP20171149.6
申请日：2020-04-23
Applicant: STMicroelectronics Inc. , STMicroelectronics S.r.l.
Inventor： JAIN, Mahaveer , CHOWDHARY, Mahesh , MURA, Roberto , PALELLA, Nicola Matteo , COLOMBO, Leonardo
Abstract: A device (120) including microelectromechanical systems (MEMS) sensors are used in dead reckoning in conditions where Global Positioning System (GPS) signals or Global Navigation Satellite System (GNSS) signals are lost. The device (120) is capable of tracking the location of the device after the GPS/GNSS signals are lost by using MEMS sensors such as accelerometers and gyroscopes. By calculating a misalignment angle between a forward axis of a sensor frame of the device and a forward axis of a vehicle (110) frame using the data received from the MEMS sensors, the device can accurately calculate the location of a user or the vehicle of the device even without the GPS/GNSS signals. Accordingly, a device capable of tracking the location of the user riding in the vehicle in GPS/GNSS signals absent environment can be provided.
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Patent Agency Ranking3.发明公开
公开(公告)号：EP3358440A1
公开(公告)日：2018-08-08
申请号：EP18154723.3
申请日：2018-02-01
Applicant: STMicroelectronics, Inc.
Inventor： DAYAL, Sankalp , CHOWDHARY, Mahesh , JAIN, Mahaveer
CPC classification number: G06F1/3296 , G06F1/1692 , G06F1/206 , G06F1/3206 , G06F1/3231 , G06N99/005 , Y02D10/173
Abstract: A system may include a motion sensor (102) configured to generate a motion signal in response to a movement of an electronic device (101), and at least one feature detection circuit (104-1, 104-2, 104-3) configured to determine at least one metric based on the motion signal. The system may further include a classifying circuit (108) configured to determine whether the electronic device (101) is in contact with a human body based on the at least one metric.
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公开(公告)号：EP4007381A1
公开(公告)日：2022-06-01
申请号：EP22150733.8
申请日：2020-04-27
Applicant: STMicroelectronics Inc.
Inventor： JAIN, Mahaveer , CHOWDHARY, Mahesh
Abstract: A portable device includes one or more memories (104) and travel mode control circuitry (112) coupled to the one or more memories. The travel mode control circuitry, in operation, monitors motion data to detect a first travel state of the device. When the first travel state of the device is detected, motion data are monitored to detect a transition from the first travel state to a second travel state of the device. The first travel state is different from the second travel state. When the transition to the second travel state of the device is detected, one or more control signals are generated to cause the device to enter a first travel mode of operation.
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5.发明公开
公开(公告)号：EP3967976A1
公开(公告)日：2022-03-16
申请号：EP21306152.6
申请日：2021-08-26
Applicant: STMicroelectronics (Grand Ouest) SAS , STMicroelectronics S.r.l. , STMicroelectronics, Inc.
Inventor： PALELLA, Nicola Matteo , COLOMBO, Leonardo , DONADEL, Andrea , MURA, Roberto , JAIN, Mahaveer , PHILIPPE, Joelle
Abstract: A method, comprising: receiving motion data from at least one inertial sensing unit (11) and absolute positioning data from a global navigation system (13) in a wheeled vehicle; applying pre-processing (21, 22, 23) to motion data as a function of absolute positioning data, obtaining pre-processed motion data and at least one estimated velocity value (v in , v GNSS ) of the wheeled vehicle; applying pipeline data processing (24) to pre-processed motion data as a function of the at least one estimated velocity value (v in , v GNSS ) of the wheeled vehicle, obtaining a calculated virtual vehicle velocity (v o ) as a result; applying position-velocity-attitude, PVA, filtering (23) to pre-processed motion data and to at least one of absolute positioning data and the calculated virtual vehicle velocity (v o ), obtaining fused data indicative of position, velocity and attitude information of the wheeled vehicle as a result. The pipeline data processing (24) comprises: high-pass or low-pass filtering (25) pre-processed motion data and obtaining filtered data as a result; applying frequency-domain transformation (26) to filtered data and obtaining, as a result, frequency analyzed data comprising individual spectral power density signals including a set of power-maximizing frequencies; calculating (27, 28), as a function of said set of power-maximizing frequencies, a wheel angular frequency signal (f w ) and a wheel size signal (C w ); calculating (29) said virtual vehicle velocity (v o ) as a function of said wheel angular frequency signal (f w ) and said wheel size signal (C w ).
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公开(公告)号：EP3737165A1
公开(公告)日：2020-11-11
申请号：EP20171611.5
申请日：2020-04-27
Applicant: STMicroelectronics Inc.
Inventor： JAIN, Mahaveer , CHOWDHARY, Mahesh
Abstract: A portable device includes one or more memories (104) and travel mode control circuitry (112) coupled to the one or more memories. The travel mode control circuitry, in operation, monitors motion data and temperature data to detect a first travel state of the device. When the first travel state of the device is detected, motion data and pressure data are monitored to detect a transition from the first travel state to a second travel state of the device. When the transition to the second travel state of the device is detected, one or more control signals are generated to cause the device to enter a first travel mode of operation.
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公开(公告)号：EP3734224A2
公开(公告)日：2020-11-04
申请号：EP20171149.6
申请日：2020-04-23
Applicant: STMicroelectronics Inc. , STMicroelectronics S.r.l.
Inventor： JAIN, Mahaveer , CHOWDHARY, Mahesh , MURA, Roberto , PALELLA, Nicola Matteo , COLOMBO, Leonardo
Abstract: A device (120) including microelectromechanical systems (MEMS) sensors are used in dead reckoning in conditions where Global Positioning System (GPS) signals or Global Navigation Satellite System (GNSS) signals are lost. The device (120) is capable of tracking the location of the device after the GPS/GNSS signals are lost by using MEMS sensors such as accelerometers and gyroscopes. By calculating a misalignment angle between a forward axis of a sensor frame of the device and a forward axis of a vehicle (110) frame using the data received from the MEMS sensors, the device can accurately calculate the location of a user or the vehicle of the device even without the GPS/GNSS signals. Accordingly, a device capable of tracking the location of the user riding in the vehicle in GPS/GNSS signals absent environment can be provided.
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