EMBEDDED URBAN DESIGN SCENE EMULATION METHOD AND SYSTEM

    公开(公告)号:US20210248816A1

    公开(公告)日:2021-08-12

    申请号:US17043580

    申请日:2020-02-27

    Abstract: The present invention discloses an embedded urban design scene emulation method and system. The method includes the following steps: constructing a status quo urban three-dimensional model scene according to collected oblique photography data; loading a three-dimensional model of urban design to a scene, and extracting geometric attributes for generation of buildings; unifying a space coordinate system of models and scenes, and automatically determining a space matching degree by taking buildings as a basic unit, and marking matched buildings with Y and mismatched buildings with N for distinction; for a region with the buildings marked with N, performing a local flattening operation in a three-dimensional model scene of oblique photography to flatten stereo data; for a region with the buildings marked with Y, performing real-time space editing in the three-dimensional model of urban design to hide the marked buildings; and opening two sets of processed space data to implement mosaic display. The present invention can conveniently embed a three-dimensional model of urban design into a status quo three-dimensional model of oblique photography for scene emulation, and provides technical and method supports for digital presentation and management of urban design achievements.

    Self-adaptive synchronous rectification control system and method of active clamp flyback converter

    公开(公告)号:US11081967B2

    公开(公告)日:2021-08-03

    申请号:US16617508

    申请日:2018-09-28

    Abstract: The invention discloses a self-adaptive synchronous rectification control system and a self-adaptive synchronous rectification control method of an active clamp flyback converter. The control system comprises a sampling and signal processing circuit, a control circuit with a microcontroller as a core and a gate driver. According to the control method, a switching-on state, an early switching-off state, a late switching-off state and an exact switching-off state of a secondary synchronous rectifier of the active clamp flyback converter can be directly detected, and the synchronous rectifier and a switching-on time of the synchronous rectifier in next cycle can be controlled according to a detection result. After several cycles of self-adaptive control, the synchronous rectifier enters the exact switching-on state, thus avoiding oscillation of an output waveform of the active clamp flyback converter.

    Adjustable hyperspectral detection chip enhanced by multi-resonance plasmonic mechanism

    公开(公告)号:US11060916B2

    公开(公告)日:2021-07-13

    申请号:US16975400

    申请日:2018-05-28

    Abstract: An adjustable hyperspectral detection chip enhanced by a multi-resonance plasmonic mechanism. The detection chip consists of an array of metal nanonail resonator detection units. Each detection unit (1) comprises: a bottom electrode (2), a semiconductor material layer (3), a spacer layer (4), a nanonail array (5), a control material layer (6), a top electrode (7), a peripheral control signal (8), and a driving circuit (9). The positional relationship from top to bottom is the top electrode (7), the control material layer (6), the nanonail array (5), the spacer layer (4), the semiconductor material layer (3), and the bottom electrode (2). The nanonail array (5) is loaded inside the control material layer (6), and the peripheral control signal (8) and the driving circuit (9) are connected to both sides of the control material layer (6).

    ARTIFICIAL FINGER TIP SLIDING TOUCH SENSOR

    公开(公告)号:US20210173540A1

    公开(公告)日:2021-06-10

    申请号:US16768636

    申请日:2018-05-23

    Abstract: An artificial fingertip sliding tactile sensor includes a PVDF film, a rubber fingertip, a filling liquid, a sealing plug, a hydraulic sensor, a housing, an inner framework, and strain gauges. The rubber fingertip is a hemispherical cavity. The PVDF film is attached to the outside of the rubber fingertip. The sealing plug seals the rubber fingertip, and the hydraulic sensor is installed at the bottom of the sealing plug. The main body of the housing is a rigid cylindrical structure. The top of the housing is provided with a circular opening, and the bottom of the housing is a flange-like structure. Four circular through holes are uniformly distributed on the flange-like structure. The inner framework includes a cylindrical head, a vertical strain rod and a base. The strain gauges are respectively attached on four sides of the vertical strain rod and adjacent to the base.

    Artificial finger tip sliding touch sensor

    公开(公告)号:US11016598B1

    公开(公告)日:2021-05-25

    申请号:US16768636

    申请日:2018-05-23

    Abstract: An artificial fingertip sliding tactile sensor includes a PVDF film, a rubber fingertip, a filling liquid, a sealing plug, a hydraulic sensor, a housing, an inner framework, and strain gauges. The rubber fingertip is a hemispherical cavity. The PVDF film is attached to the outside of the rubber fingertip. The sealing plug seals the rubber fingertip, and the hydraulic sensor is installed at the bottom of the sealing plug. The main body of the housing is a rigid cylindrical structure. The top of the housing is provided with a circular opening, and the bottom of the housing is a flange-like structure. Four circular through holes are uniformly distributed on the flange-like structure. The inner framework includes a cylindrical head, a vertical strain rod and a base. The strain gauges are respectively attached on four sides of the vertical strain rod and adjacent to the base.

    SPEECH FEATURE REUSE-BASED STORING AND CALCULATING COMPRESSION METHOD FOR KEYWORD-SPOTTING CNN

    公开(公告)号:US20210118429A1

    公开(公告)日:2021-04-22

    申请号:US17112287

    申请日:2020-12-04

    Inventor: Weiwei SHAN

    Abstract: It discloses a speech feature reuse-based storing and calculating compression method for a keyword-spotting CNN, and belongs to the technical filed of calculating, reckoning or counting. If the updated row number of input data is equal to a convolution step size, every time new input data arrive, an input layer of a neural network replaces the earliest part of the input data with the new input data and meanwhile adjusts an addressing sequence of the input data, thereby performing an operation on the input data and corresponding convolution kernels in an arrival sequence of the input data, and an operation result is stored in an intermediate data memory of the neural network to update corresponding data.

    Multi-dimensional surface electromyogram signal prosthetic hand control method based on principal component analysis

    公开(公告)号:US10959863B2

    公开(公告)日:2021-03-30

    申请号:US16475680

    申请日:2018-05-23

    Abstract: The present invention discloses a multi-dimensional surface electromyogram signal prosthetic hand control method based on principal component analysis. The method comprises the following steps. Wear an armlet provided with a 24-channel array electromyography sensor to a front arm of a subject, and respectively wear five finger joint attitude sensors at a distal phalanx of a thumb and at middle phalanxes of remaining fingers of the subject. Perform independent bending and stretching training on the five fingers of the subject, and meanwhile, collect data of an array electromyography sensor and data of the finger joint attitude sensors. Decouple the data of the array electromyography sensor by principal component analysis to form a finger motion training set. Perform data fitting on the finger motion training set by a neural network method, and construct a finger continuous motion prediction model. Predict a current bending angle of the finger through the finger continuous motion model.

    ADJUSTABLE HYPERSPECTRAL DETECTION CHIP ENHANCED BY MULTI-RESONANCE PLASMONIC MECHANISM

    公开(公告)号:US20210033462A1

    公开(公告)日:2021-02-04

    申请号:US16975400

    申请日:2018-05-28

    Abstract: An adjustable hyperspectral detection chip enhanced by a multi-resonance plasmonic mechanism. The detection chip consists of an array of metal nanonail resonator detection units. Each detection unit (1) comprises: a bottom electrode (2), a semiconductor material layer (3), a spacer layer (4), a nanonail array (5), a control material layer (6), a top electrode (7), a peripheral control signal (8), and a driving circuit (9). The positional relationship from top to bottom is the top electrode (7), the control material layer (6), the nanonail array (5), the spacer layer (4), the semiconductor material layer (3), and the bottom electrode (2). The nanonail array (5) is loaded inside the control material layer (6), and the peripheral control signal (8) and the driving circuit (9) are connected to both sides of the control material layer (6).

    DOUBLE-MEMBRANE CAPACITIVE PRESSURE SENSOR AND MANUFACTURING METHOD

    公开(公告)号:US20200319049A1

    公开(公告)日:2020-10-08

    申请号:US16098438

    申请日:2018-06-22

    Abstract: A double-membrane capacitive pressure sensor comprising a glass substrate, wherein a shallow groove is formed in the center of the glass substrate; a shallow groove through-hole is formed in the center of the shallow groove, and the shallow groove through-hole extends from the bottom surface of the shallow groove to the bottom surface of the glass substrate; a capacitor C1 capable of measuring the low-pressure difference and a capacitor C2 capable of measuring the high-pressure difference are arranged above the shallow groove; the capacitor C1 capable of measuring the low-pressure difference comprises a bottom electrode plate and a thin pressure sensitive membrane, and the capacitor C2 capable of measuring the high-pressure difference comprises a thick pressure sensitive membrane and a top electrode plate;

    Automatic tensioning system and method for strengthening beam, slab and column by pre-stressed FRP plate

    公开(公告)号:US10689870B2

    公开(公告)日:2020-06-23

    申请号:US16078599

    申请日:2017-03-30

    Inventor: Gang Wu Xinghua Li

    Abstract: An automatic tensioning system for strengthening a beam, a slab and a column by a pre-stressed FRP plate comprises a tensioning end anchor (1), a fixed end anchor (10), and a tensioning bracket (3) connected to the tensioning end anchor (1). A centre-hole jack (16) is provided in the middle of the tensioning bracket (3), a threaded rod (8) passes through the tensioning bracket (3) and is then connected to the centre-hole jack (16), and an upper toothed nut (13) and a lower toothed nut (19) respectively driven by a driving mechanism are provided on two sides of the tensioning bracket (3) on the threaded rod (8). A binary clip-type fixture (4) is further comprised, an upper surface thereof is provided with a cylinder (6), and a sleeve (7) nested outside the cylinder (6) is connected to the threaded rod (8).

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