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Solar energy in-situ detection method and system

A technology of on-site detection and solar energy, applied in the field of optical measurement, can solve problems such as no consideration

Inactive Publication Date: 2005-09-07
沈天行
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

The calculation of radiation is generally based on the calculation data under open conditions, without considering the influence of complex conditions such as surrounding environment shielding, therefore, a method and system for on-site detection of solar energy according to the on-site environment is needed

Method used

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  • Solar energy in-situ detection method and system

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Embodiment Construction

[0032] Below in conjunction with principle and accompanying drawing, the present invention will be further described:

[0033] The present invention adopts the method of image processing technology to detect the amount of solar radiation. The camera is equipped with a fisheye lens to shoot the image of the whole hemisphere toward the zenith, and the altitude angle and azimuth angle of each point in the image are determined according to the imaging law of the lens used. According to the geographic latitude value, the corresponding local sun trajectory map is called; combining the sun trajectory with the orientation data can detect the shielding condition of the surrounding environment of the measuring point throughout the year. The solar radiation intensity of a certain time or a certain period of time taken from the time period that can be exposed to sunlight can be obtained according to the local solar altitude angle h and atmospheric transparency rate P

[0034] I 水平 =1353P...

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Abstract

The invention discloses a method and system of measuring solar energy on the spot. The method uses the camera with fish-eye lens to soot the picture of the hole hemisphere, making sure every point's altitude angle and azimuth angle in the picture by the law of imagery and find the corresponding local solar trace picture according to the geographic latitude of the measuring point, connecting the solar trace with the orientation data and measuring the fender condition of the surrounding to the sunlight in one year, obtaining a certain time step from the illuminating time and the lever solar radiation intensity of that step can be computed according to the solar altitude angle h and atmospheric translucence p. The invention can measure the solar radiation intensity of the measuring spot on the level surface, vertical surface, any dip face at a certain time and make sure the best getting-energy surface, which can be used orientate the solar collector and battery and measure the energy of the solar house and sun-breaker.

Description

technical field [0001] The invention relates to an optical measurement method, in particular to a method and a detection system for detecting solar energy on site by using image processing technology, and is suitable for the positioning of solar heat collectors or solar cells, the detection of heat gain of solar houses and the amount of sunshade of sunshade panels. Background technique [0002] In the prior art, the positioning of various solar energy devices, such as the positioning of solar collectors and solar cells, and the sun. . The calculation of the amount of radiation is generally based on the calculation data under open conditions, without considering the influence of complex conditions such as surrounding environment shielding. Therefore, a method and system that can perform on-site solar energy detection according to the on-site environment is needed. Contents of the invention [0003] A technical problem to be solved by the present invention is to overcome th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J1/10
Inventor 沈天行
Owner 沈天行
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