METHOD, DEVICE, SYSTEM AND MEDIUM FOR CLASSIFYING GREEN-BLUE-GRAY INFRASTRUCTURE

    公开(公告)号:US20240371133A1

    公开(公告)日:2024-11-07

    申请号:US18556730

    申请日:2022-11-29

    Abstract: A method, device, system, and medium for classifying green-blue-gray infrastructure. The method includes obtaining a multispectral photo corresponding to a target area, and obtaining an image set of a target and a color orthophoto, based on the multispectral photo; obtaining a sample file based on the color orthophoto, and obtaining a classification result of the green-blue-gray infrastructure corresponding to the target area based on the image set of the target and the sample file. The embodiments can obtain the image set of the target and the color orthophoto based on the multispectral photo corresponding to the target area and combine the sample file obtained from the color orthophoto with the image set of the target to obtain the classification result of the green-blue-gray infrastructure corresponding to the target area, thereby improving the accuracy and efficiency for classifying the green-blue-gray infrastructure.

    MACHINING METHOD AND MACHINING DEVICE IMPROVING MACHINING EFFICIENCY AND PRESERVING WORKPIECE SURFACE INTEGRITY

    公开(公告)号:US20230143368A1

    公开(公告)日:2023-05-11

    申请号:US17802283

    申请日:2020-11-27

    CPC classification number: B24B49/006 B24B49/10 B24B1/04

    Abstract: Disclosed are a machining method and a machining device improving machining efficiency and preserving workpiece surface integrity. The machining method improving machining efficiency and preserving workpiece surface integrity includes: setting a workpiece (300) and a machining unit (400); and machining the workpiece (300) by the machining unit (400) at a preset machining speed, wherein the preset machining speed is not lower than a machining speed corresponding to the embrittlement of the workpiece material. By the machining method, the machining speed of the machining unit (400) is set during machining, which results in “skin effect” of subsurface damage caused by the embrittlement of the workpiece material (300) and enables the damage depth of the workpiece (300) to be confined in a shallow subsurface layer, so that the damage depth of the workpiece (300) is reduced, the workpiece integrity is preserved, and the machining quality and the machining efficiency are improved.

    REFLECTIVE MASTERSURFACE PRIMARY MIRROR, AUXILIARY MIRROR, AND TELESCOPE SYSTEM

    公开(公告)号:US20210382289A1

    公开(公告)日:2021-12-09

    申请号:US17286101

    申请日:2019-01-24

    Abstract: Provided are a reflective metasurface primary mirror and secondary mirror, and a telescope system. The reflective metasurface primary mirror includes a transparent substrate and a primary mirror metasurface functional unit pattern disposed on the transparent substrate. The primary mirror metasurface functional unit pattern includes an anisotropic primary mirror subwavelength structure disposed in a set annular region, and a phase introduced by the primary mirror subwavelength structure satisfies a primary mirror phase distribution. The set annular region encircles a light-transmissive hole, and light reflected by the reflective metasurface secondary mirror is focused through the light-transmissive hole.

    ACTIVE SOURCE SURFACE WAVE PROSPECTING METHOD, SURFACE WAVE EXPLORATION DEVICE AND COMPUTER-READABLE STORAGE MEDIUM

    公开(公告)号:US20210141113A1

    公开(公告)日:2021-05-13

    申请号:US17051247

    申请日:2018-08-06

    Abstract: Active source surface wave prospecting method which is applicable to technical field of geological prospecting, comprising: collecting, by detector at preset station, surface wave data transmitted from seismic source; calculating to obtain dispersion energy graph on basis of vector wave-number transformational algorithm and according to surface wave data; extracting dispersion curve from dispersion energy graph, dispersion comprising base-order surface wave dispersion curve and high-order surface wave dispersion curve; establishing initial stratigraphic model according to base-order surface wave dispersion curve and high-order surface wave dispersion curve, performing, according to initial stratigraphic model, joint inversion on base-order surface wave dispersion curve and high-order surface wave dispersion curve to obtain inverting data of stratigraphic texture. Accuracy of surface wave prospecting result is effectively improved. Further provided are surface wave exploration device and terminal device.

    SEISMIC TRAVEL TIME TOMOGRAPHIC INVERSION METHOD BASED ON TWO POINT RAY TRACING

    公开(公告)号:US20190113641A1

    公开(公告)日:2019-04-18

    申请号:US15950350

    申请日:2018-04-11

    Abstract: The present application provides a seismic travel time tomographic inversion method based on two-point ray tracing comprising: collecting seismic data including direct wave travel time and reflected wave travel time; establishing an initial one-dimensional continuously layered model having continuously a varying intraformational velocity; representing a ray parameter p by a variable q, representing a source-receiver distance X by a function X=f(q) of the variable q, solving the function X=f(q) using a Newton iteration method; calculating a theoretical direct wave travel time and reflected wave travel time according to the ray parameter p; comparing the calculated theoretical arrival time with actual arrival time, using an optimal algorithm to adjust velocity parameters of the initial one-dimensional continuously layered model, until a difference between the theoretical direct wave travel time and reflected wave travel time and the actual direct wave travel time and reflected wave travel time complies with a predetermined error standard.

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