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Method for detecting shallow wind below 200 meters

A detection method and shallow technology, which is applied in the field of detection of shallow wind below 200 meters, can solve the problems that cannot be effectively solved in the detection of shallow wind below 200 meters, and achieve the effect of low cost, high observation accuracy and simple principle

Inactive Publication Date: 2017-08-18
HENAN UNIV OF SCI & TECH
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Problems solved by technology

[0003] In order to overcome the problem that the existing wind speed and direction detection instruments and methods in the prior art cannot effectively solve the detection of shallow wind below 200 meters, the purpose of the present invention is to provide a detection method of shallow wind below 200 meters

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with specific examples, so that those skilled in the art can better understand and implement the present invention, but the examples cited are not intended to limit the present invention.

[0017] A method for detecting shallow wind below 200 meters, including the following steps: according to the height of the target shallow wind, a light rope 2 of a specific length is connected to the hydrogen balloon 1, and the tail end of the light rope 2 is fixed to the ground On, such as figure 1 As shown, a theodolite 3 is used to observe the elevation angle and azimuth angle of the hydrogen balloon 1 on the fixed point of the light rope 2 on the ground.

[0018] Among them, the azimuth angle is used to calculate the wind direction at the same height as the hydrogen balloon. The formula for calculating the wind direction is:

[0019] Wind direction=azimuth angle+180°(azimuth angle<180°),

[0020] Wind direction = azimu...

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Abstract

The invention relates to a method for detecting shallow wind below 200 meters, which is characterized in that a hydrogen balloon tied by a light rope with specified length is taken according to the height of target shallow wind, the tail end of the light rope is fixed on the ground, and an elevation angle and an azimuth angle of the hydrogen balloon are observed by adopting a theodolite at a fixed point of the light rope on the ground, wherein the wind direction at the same height as the hydrogen balloon is calculated by using the azimuth angle, and the wind speed at the same height as the hydrogen balloon is calculated by using the elevation angle. According to the invention, the hydrogen balloon is enabled to stay at a shallow wind layer below 200 meters by using the light rope, then detection is performed on the shallow wind layer, a pulling force imposed on the hydrogen balloon by the light rope is considered, a composite force of a static lifting force received by the hydrogen balloon and the wind pressure is balanced with the pulling force imposed on the hydrogen balloon by the light rope, the wind direction and the wind speed are calculated by using a wind pressure principle, and high observation accuracy can be reached.

Description

Technical field [0001] The invention relates to the technical field of wind speed detection, in particular to a method for detecting shallow wind below 200 meters. Background technique [0002] The current wind direction and speed detection instruments or methods mainly include ground automatic weather stations, air probes to measure wind, and radar wind measurements. Among them, the automatic weather station mainly detects the wind direction and speed on the ground, and cannot detect the shallow wind below 200 meters. The release of sounding balloon and wind measuring radar can detect high-altitude wind. The release of sounding balloon is used to directly release the balloon and use theodolite to track positioning or lanyard radiosonde to obtain high-altitude wind. The balloon will quickly fly out of 200 meters. , It is also impossible to continuously observe the shallow wind below 200 meters, and the incomplete tracking of the balloon movement will cause errors; the vertical r...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P5/00G01P13/02G01W1/08
CPCG01P5/001G01P13/02G01W1/08
Inventor 李根生李五生李刚脱宇峰叶汝杰邱凯卢强
Owner HENAN UNIV OF SCI & TECH
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