4 results about "North pole" patented technology

The application discloses a kind of earth magnetic field horizontal component representation methods of removing pole singularity, comprising: based on adolf schmidt semi-normalized spherical harmonic theory, the spherical harmonic representation of geomagnetic field magnetic potential function is obtained by spherical harmonic polynomial expansion calculation method;With south pole or north pole as center, mirror center symmetry extension is carried out to great circle on sphere, so that each point on sphere has a mirror point, so that the mirror extension function of geomagnetic field magnetic potential function is obtained;Two-dimensional Fourier expansion is carried out to mirror extension function using double Fourier series, and double coverage function expansion is obtained;Based on double coverage function expansion, the horizontal component of geomagnetic field is calculated, i.e. the spherical gradient of spherical magnetic potential function is calculated.The realization is based on the existing IGRF model magnetic potential expansion coefficient, the magnetic field tangent vector representation is obtained without being polluted by pole problem, and a new modeling idea and calculation method of spherical tangent vector field are provided.

The present application belongs to the global ocean numerical simulation technology field of earth science, and discloses a MCSC spherical double-pole orthogonal grid pole positioning method and system based on a genetic algorithm. The present application aims to solve the problem that in the existing global ocean grid generation technology, there is a complex nonlinear mapping relationship between the center point of the middle domain and the north pole point of the spherical grid, and it is seriously dependent on manual trial and error setting, which causes the grid pole to be difficult to accurately and flexibly positioned to the target geographical location to realize automatic optimization. The main technical scheme includes: obtaining the boundary information of the geographical area to be processed to construct the conformal mapping to the spherical projection complex plane; accepting the target north pole point coordinates specified by the user; calling the genetic algorithm to iteratively search for the optimal conformal center point in the circular boundary domain, combining the inverse projection transformation to minimize the mapping position error; generating a slit mapping according to the center point and mapping the grid back to the sphere to generate a global ocean model orthogonal curve grid.

The invention discloses an ice mooring section node adaptive task scheduling method and system, and belongs to the technical field of underwater observation, and the method comprises the steps: collecting the state information of a current ice mooring section node; obtaining observation coverage information of a cloud platform or an edge node to construct observation redundancy distribution; calculating observation priorities of the nodes in different depth intervals and time periods based on node state vectors, observation redundancy distribution and business requirements; performing optimization solution to obtain an observation task plan by taking maximization of the total observation value or the unit energy observation value in the residual life of the node as a target; executing the observation task plan, and returning the profile observation data and the updated state information to the cloud platform or the edge node; and dynamic feedback updating is carried out to realize continuous optimization. The method can maximize the observation value under the condition of limited energy, supports multi-node cooperation and cloud closed-loop control, and is especially suitable for long-term, unattended and adaptive underwater environment observation of ice-covered sea areas such as the north pole and the south pole.

Probe head (101) with a housing part (101A) for optical shape detection and / or surface inspection of a component (B) n ) comprehensive - at least one camera (K0) with at least one lens for recording image data of at least one measurement area image of a measurement area image sequence of a component surface of the component (B) n ), - at least one switchable lighting element (101B) as a light source for illuminating at least one area of ​​the component surface of the component (B n ) during the recording of the at least one measurement range image, wherein - the at least one illumination element (101B) outside the north pole of a hemispherical scattering body (101D) opposite a measuring plane (ΔS) Bx x ΔS By ) of the measurement range image is arranged at an angle and - that at least one lens of the camera (K0) is arranged relative to the scattering body (101D) such that the lens of the camera (K0) through the viewing aperture (101D-1) of the scattering body (101D) illuminates the illuminated area of ​​the component surface of the component (B) at its north pole n ) parallel to the measurement plane (ΔS Bx × ΔS By ) of the measurement range image, characterized in that - a diffuser element (101B-1) is assigned to the at least one lighting element (101B), which scatters the light emitted by the at least one lighting element (101B), which then strikes an inner wall of the housing part (101A) at a predefinable angle, wherein - the inner wall of the housing part (101A) is coated to scatter the light, so that the inner wall acts as a light reflector (101G) and as a scattering element, and the scattered light is emitted from the inner wall at a reflection angle, which then points onto a component (B) n ) far-facing surface of the scattering body (101D) hits, - wherein the scattering body (101D) distributes the light passing through it on the exit side of the scattering body (101D), which is directed onto the area of ​​the component surface of the component to be illuminated (B). n ) meets.