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Wind flow sensing system and method for determining velocity field of wind flow

A technology of sensing system and velocity field, applied in the field of remote sensing, which can solve the problem of difficult conditions for model correctness

Active Publication Date: 2022-05-10
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, determining the conditions under which these models are correct remains a challenge

Method used

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  • Wind flow sensing system and method for determining velocity field of wind flow
  • Wind flow sensing system and method for determining velocity field of wind flow
  • Wind flow sensing system and method for determining velocity field of wind flow

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Embodiment Construction

[0066] figure 1A hardware diagram of the different components of the wind flow sensing system 100 is shown, according to some embodiments. The wind flu sensing system 100 includes a processor 120 configured to execute stored instructions, and a memory 140 storing processor-executable instructions. Processor 120 may be a single-core processor, a multi-core processor, a computing cluster, or any number of other configurations. Memory 140 may include random access memory (RAM), read only memory (ROM), flash memory, or any other suitable memory system. Processor 120 is connected to one or more input-output interfaces and / or devices via bus 106 .

[0067] These instructions stored in memory 140 implement a method for determining the velocity field of wind flow at a set of different altitudes from a set of measurements of radial velocity at each altitude. To this end, the wind flow sensing system 100 may further include a storage device 130 adapted to store different modules stor...

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Abstract

The wind flow sensing system simulates computational fluid dynamics (CFD) of wind flow by operating parameters of a cost function with a weighted combination that reduces error, determining a first approximation of the velocity field at each altitude; from the first approximation of the velocity field an approximation to determine the horizontal derivative of the vertical velocity at each altitude; and using the velocity field at each altitude, the projection of the measurement of the radial velocity on the three-dimensional axis, and the horizontal derivative of the vertical velocity of the corresponding velocity field The geometric relationship between and determine the second approximation of the velocity field. In CFD's cost function, each error corresponds to one of the altitudes and includes the difference between the measured velocity at the line-of-sight point at the corresponding altitude and the simulated velocity at the line-of-sight point simulated by CFD for the corresponding altitude poor. At least some of the errors in the weighted combination have different weights.

Description

technical field [0001] The present invention relates generally to remote sensing, and more particularly to sensing the flow of wind through complex terrain. Background technique [0002] Measuring the motion of the atmosphere or wind is important for many applications, especially in meteorology and for monitoring and characterization of sites such as airports and wind farms. It is often useful to measure the displacement of air masses over a wide range of altitudes or in regions corresponding to large volumes. Sensing of such large volume displacements may be impractical to perform with anemometers such as cup anemometers and require remote sensing instruments capable of remote measurements. These instruments include radar, lidar (LiDAR) and sodar (SODAR), among others. Radar and lidar systems use electromagnetic waves in the high-frequency and optical frequency ranges, respectively. Sodar systems use sound waves. [0003] For example, measurements of the motion of air m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P5/26G01S17/95G01P5/00
CPCG01P5/001G01P5/26G01S7/4808G01S17/58G01S17/95Y02A90/10G01W1/00
Inventor S·纳比P·格罗弗M·德纳斯
Owner MITSUBISHI ELECTRIC CORP