Landslide hazard monitoring and early warning method and system based on real 3D

    公开(公告)号:US12130401B1

    公开(公告)日:2024-10-29

    申请号:US18531737

    申请日:2023-12-07

    CPC classification number: G01V20/00 G08B21/10

    Abstract: A landslide risk monitoring and early warning method based on real 3D includes the following steps: S1, multi-source data fusion processing: collecting landslide-related data for an integrated fusion processing; S2, large-scale scene modeling, and analysis; S3, mesoscale scene modeling and analysis; S4, small-scale scene modeling and analysis; S5, landslide knowledge association and entity database construction; S6, landslide risk multi-scale dynamic assessment; S7, landslide multi-indicator monitoring and early warning. A landslide hazard monitoring and early warning system based on real 3D is also disclosed. The above-mentioned landslide risk monitoring and early warning method and system based on real 3D can realize different scale data acquisition and real 3D modeling of landslide geological disasters, establishment of full-factor real 3D landslide scene database, multi-scale spatial-temporal dynamic monitoring and analysis of landslide risk, and timely and intelligent multi-indicator early warning.

    MICRO CORE-DRILLING TESTING SYSTEM FOR HIGH-PRESSURE ENVIRONMENT

    公开(公告)号:US20230003619A1

    公开(公告)日:2023-01-05

    申请号:US17941235

    申请日:2022-09-09

    Abstract: A micro core-drilling testing system for high-pressure environment, including: a pressure chamber, a micro core-drilling testing platform and a control device. The micro core-drilling testing platform includes a lower tray, a middle tray, a hydraulic system, a stroke cylinder, a rock sample plate, a rock sample block, a pressure compensation device and a drilling rig. The drilling rig is configured to carry out core-drilling operation. The hydraulic system is configured to provide power for the drilling rig. The pressure compensation device is configured to balance the pressure inside the pressure chamber and the hydraulic system.

    Modeling method of stator winding air gap for temperature field analysis of AC traction motor

    公开(公告)号:US11196374B2

    公开(公告)日:2021-12-07

    申请号:US17037873

    申请日:2020-09-30

    Abstract: A modeling method of a stator winding air gap for temperature field analysis of an AC traction motor includes: changing the width of an air gap of a stator winding equivalent model according to a set value of spacing; establishing a three-dimensional finite element model of the AC traction motor with the stator winding air gap; based on the three-dimensional finite element model of different widths of the air gap, analyzing a temperature field to obtain a temperature field distribution diagram of the AC traction motor; carrying out the numerical fitting according to data in the temperature distribution diagram to obtain a function relation between the air-gap width and the temperature of the stator winding equivalent model; and by measuring the actual temperature of a motor stator winding, calculating an optimal air-gap width corresponding to the modeling of the stator winding of the current AC traction motor.

    HALF-CAR FLOATING DEVICE BASED ON LOAD FEEDBACK AND HALF-CAR POSITION TRACKING METHOD

    公开(公告)号:US20190391048A1

    公开(公告)日:2019-12-26

    申请号:US16236632

    申请日:2018-12-30

    Abstract: Disclosed is a half-vehicle floating device and a half-vehicle position tracking method based on load feedback. The device includes a rack, an active platform, a position-measuring triangle frame and a position-measuring platform. Guide rails corresponding to the active platform and the position-measuring platform are provided vertically on the rack. The active platform and the position-measuring platform are respectively placed on a corresponding rail through a slider. The bottom of the active platform is hinged to a first corner of an active triangle frame through an active slider rod, and a second corner of the active triangle is hinged to the rack and connected to an inverter motor through a transmission device. The bottom of the position-measuring platform is hinged to a first corner of the position-measuring triangle frame through a position measuring slider rod, and a second corner of the position-measuring triangle frame is hinged to the rack.

    INTELLIGENT DEHUMIDIFICATION DEVICE FOR HOT AIR CIRCULATION BAKING SYSTEM

    公开(公告)号:US20190274316A1

    公开(公告)日:2019-09-12

    申请号:US16236174

    申请日:2018-12-28

    Abstract: The invention disclosed an intelligent dehumidification device for a hot air circulation baking system, which internally includes a compressor, a condenser, a throttle valve, an evaporator, a total heat exchanger, a controller, a heat dissipation fan, a liquid level sensor, a temperature and humidity sensor, an axial flow fan, a drain solenoid valve, a condensate collecting box and a temperature sensor and externally includes a dehumidification air inlet, a dehumidification air outlet, a fresh air inlet, a heat dissipation air outlet and a condensate discharge port. The beneficial effects of present application are recovery of internal circulation waste heat, non-emission intelligent dehumidification and preservation of beneficial ingredients of the baked product for the hot air circulation baking system during the baking process can be realized, and functions of grid overpressure and undervoltage detection and protection, compressor overheat protection, delayed start after compressor shutdown, automatic condensate discharge can be achieved.

    SIGNAL TRANSMISSION DEVICE CAPABLE OF SHORTENING TURN-OFF TIME OF CONTROLLED SOURCE IN ELECTROMAGNETIC METHOD

    公开(公告)号:US20250070767A1

    公开(公告)日:2025-02-27

    申请号:US18945463

    申请日:2024-11-12

    Inventor: Guohong FU

    Abstract: A signal transmission device for reducing a turn-off time of an electromagnetic controlled source includes a first electronic switch, a twisted pair cable and a second electronic switch. The first electronic switch constitutes a bridge arm, and includes a first bridge arm switch, a second bridge arm switch, a third bridge arm switch and a fourth bridge arm switch. The second electronic switch is configured to control turn-on and turn-off of the twisted pair cable. The signal transmission device and ground constitute a signal transmission loop.

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