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公开(公告)号：US20240219254A1
公开(公告)日：2024-07-04
申请号：US18497960
申请日：2023-10-30
发明人： Qichao ZHAO , Ran YANG , Zhao LI
摘要： The present disclosure provides a pressure signal fitting method and apparatus. The method comprises the steps of: applying a pressure to each sensing point in a pressure sensor, measuring and integrating a relationship between the pressure and a resistance of each sensing point to obtain a pressure-resistance relationship; correcting the pressure-resistance relationship through a numerical filtering algorithm, and fitting the corrected pressure-resistance relationship to obtain an optimized pressure-resistance relationship; switching sensing points of a voltage sensing circuit by an integrated analog electronic switch to measure voltages of a plurality of arrayed sensing points pressurized; calculating resistances of the plurality of arrayed sensing points according to the measured voltages and in conjunction with an acquisition circuit; calculating pressures of the plurality of arrayed sensing points through the optimized pressure-resistance relationship; and based on areas of pressure zones and non-pressure zones of the plurality of sensing points, calculating actual pressures of the plurality of arrayed sensing points from the calculated pressures thereof through a relationship between the pressure and an intensity of pressure.
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公开(公告)号：US20240206820A1
公开(公告)日：2024-06-27
申请号：US18497950
申请日：2023-10-30
发明人： Qichao ZHAO , Ran YANG , Zhao LI
IPC分类号： A61B5/00 , A61B5/024 , A61B5/0295
CPC分类号： A61B5/721 , A61B5/02427 , A61B5/0295 , A61B5/725 , A61B5/7278
摘要： The present disclosure provides a method, an apparatus and a system for filtering pulse signal motion interference. The method comprises: irradiating a skin of a target human body in motion with a green light source in real time, so as to acquire a corresponding pulse signal from the target human body in real time; preprocessing the acquired pulse signal; and adaptively filtering the preprocessed pulse signal based on acceleration data of the target human body acquired in real time, so as to filter out a motion artifact interference of the pulse signal. The present disclosure can effectively improve the accuracy and effectiveness of filtering the pulse signal motion interference of a person in motion without a large amount of data, with a simple calculation process and without a plurality of PPG sensors, and can effectively improve the real-time performance for filtering the pulse signal motion interference.
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3.发明公开公开(公告)号：US20240070575A1
公开(公告)日：2024-02-29
申请号：US18239148
申请日：2023-08-29
发明人： Qichao ZHAO , Ran YANG
IPC分类号： G06Q10/0631 , A61B5/16
CPC分类号： G06Q10/063112 , A61B5/165
摘要： The present application provides a method, system, and storage medium of personnel situational awareness evaluation and training, the method comprises: obtaining situational awareness scenes and tasks; performing the personnel situational awareness testing or training through the situational awareness task in the situational awareness scene, obtaining an objective data for each dimension of a plurality of situational awareness tasks collected by personnel based on a plurality of sensing devices during an implementation of the situational awareness tasks, obtaining subjective evaluation results of the personnel after the situational awareness testing or training; a multiple regression analysis is performed based on the objective data and the subjective evaluation results of each dimension of each situational awareness task to obtain a single task and single dimension evaluation result, a single task and total task evaluation results of the situational awareness task; after each personnel situational awareness training, reviewing the personnel situational awareness training.
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公开(公告)号：US20240053385A1
公开(公告)日：2024-02-15
申请号：US18088945
申请日：2022-12-27
发明人： Qichao ZHAO , Ran Yang , Zhao Li
摘要： Disclosed are an EEG impedance test circuit, a method, and a device. The circuit comprises a frequency selecting circuit, an amplification circuit, a follower circuit, and a power supply terminal AVCC. An input end of the frequency selecting circuit is connected to the power supply terminal AVCC, the input end of the frequency selecting circuit is further connected to the input end of the amplification circuit, an output end of the frequency selecting circuit is connected to the output end of the amplification circuit, and the output end of the amplification circuit is connected to the input end of the follower circuit; the frequency selecting circuit is configured for oscillating so as to generate an oscillation signal; and the follower circuit is configured for isolating the frequency selecting circuit and the amplification circuit; the follower circuit is configured for circuit isolation.
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公开(公告)号：US20240215874A1
公开(公告)日：2024-07-04
申请号：US18379908
申请日：2023-10-13
发明人： Qichao ZHAO , Ran YANG
IPC分类号： A61B5/1455 , A61B5/00
CPC分类号： A61B5/1455 , A61B5/72
摘要： The present disclosure provides a photoelectric physiological signal acquiring and processing device including a light source, a photoelectric sensing device, an acquisition unit, an analog-to-digital device, and a microprocessing unit. The acquisition unit includes a current-to-voltage conversion module, a filtering device, and an amplification circuit. The photoelectric sensing device acquires a light transmitted through or reflected by the light source through the human physiological signal acquisition site, and converts it into a current signal. The current-to-voltage conversion module converts the current signal into a voltage signal, the filtering device and the amplification circuit process the voltage signal in sequence, the analog-to-digital device converts a processed voltage signal into a digital signal, and the physiological signal is obtained by the microprocessing unit.
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6.发明公开公开(公告)号：US20240118747A1
公开(公告)日：2024-04-11
申请号：US18374734
申请日：2023-09-29
发明人： Qichao ZHAO , Ran Yang
IPC分类号： G06F3/01 , G06F3/04842
CPC分类号： G06F3/013 , G06F3/04842
摘要： Disclosed are a method and apparatus for generating a group eye movement trajectory, a computing device, and a storage medium, belonging to the technical field of vision tracking. The method includes: acquiring eye movement data of each individual in a target group on a fixation object; generating an individual fixation trajectory of each individual on a plurality of areas of interest in the fixation object based on the eye movement data; and performing similarity fitting on the plurality of individual fixation trajectories to generate the group eye movement trajectory.
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7.发明公开公开(公告)号：US20240077954A1
公开(公告)日：2024-03-07
申请号：US18088894
申请日：2022-12-27
发明人： Qichao ZHAO , Ran YANG
IPC分类号： G06F3/03
CPC分类号： G06F3/0304
摘要： Disclosed are a human-computer interaction movement track detection method, device, apparatus, and computer-readable storage medium. The method comprises: segmenting a movement path of a movement target to obtain one or more sub paths; monitoring and recording movement of the movement target in each of the sub paths to obtain a human-computer interaction movement track of the movement target in each of the sub paths; identifying the human-computer interaction movement track of the movement target in each of the sub paths with a determination model corresponding to each of the sub paths; and detecting a human-computer interaction movement track of the movement target based on identification of the human-computer interaction movement track in each of the sub paths.
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公开(公告)号：US20240036091A1
公开(公告)日：2024-02-01
申请号：US18088931
申请日：2022-12-27
发明人： Qichao ZHAO , Ran Yang , Zhao Li
摘要： Disclosed are a detection circuit and apparatus based on equipotential shielding. A first connection end of a row control circuit, configured to be connected to a row lead of an array piezoresistive sensor; a control end of the row control circuit, connected to a main control chip for outputting a control signal; a second connection end of the row control circuit, connected to a first power supply terminal; and a row pull-up resistor, with an end connected to the row lead and another end connected to a second power supply terminal. Herein, each row lead corresponds to one row pull-up resistor; each column lead of the array piezoresistive sensor is connected to an input end of an inverse adder; an output end of the inverse adder is connected to a first connection end of the column control circuit.
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公开(公告)号：US12105127B2
公开(公告)日：2024-10-01
申请号：US18088931
申请日：2022-12-27
发明人： Qichao Zhao , Ran Yang , Zhao Li
摘要： Disclosed are a detection circuit and apparatus based on equipotential shielding. A first connection end of a row control circuit, configured to be connected to a row lead of an array piezoresistive sensor; a control end of the row control circuit, connected to a main control chip for outputting a control signal; a second connection end of the row control circuit, connected to a first power supply terminal; and a row pull-up resistor, with an end connected to the row lead and another end connected to a second power supply terminal. Herein, each row lead corresponds to one row pull-up resistor; each column lead of the array piezoresistive sensor is connected to an input end of an inverse adder; an output end of the inverse adder is connected to a first connection end of the column control circuit.
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10.发明授权公开(公告)号：US12099650B2
公开(公告)日：2024-09-24
申请号：US17699656
申请日：2022-03-21
发明人： Qichao Zhao , Ran Yang
摘要： Provided is a method for identifying a gaze behavior in a three-dimensional space, comprising: acquiring eye movement data of the two eyes of a user; selecting, from the collected eye movement data, eye movement data for gaze behavior identification; calculating eye movement angular velocities, determining gaze point data corresponding to the gaze behavior; combining pieces of gaze point data, which satisfy a time proximity condition and a space proximity condition at the same time, in the gaze point data so as to obtain a gaze duration and the 3D coordinates of gaze points; and based on the combined pieces of gaze point data, determining a gaze point at which the gaze duration is longer than a second set duration, thereby identifying the gaze behavior.
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