A solar position coordinate detection device based on image processing technology

Abstract

The invention discloses a sun position coordinate detecting device based on an image processing technology. The sun position coordinate detecting device comprises a housing, wherein a light hole for sunray to irradiate the interior of the housing is formed in the centre of the top surface of the housing in the axial direction; a sunray weakening sheet, a camera and a signal processing plate are sequentially assembled in the housing from top to bottom; the sunray weakening sheet is used for weakening sunray intensity; the camera is used for obtaining sun image information by photographing through the light hole; and the signal processing plate is used for processing sun image information photographed by the camera through an interior image and then outwardly outputting position coordinate data signals of the sun in an image. The disadvantage of being low in going-to-the-sun precision in the prior art is overcome; and the sun position coordinate detecting device based on the image processing technology disclosed by the invention has the characteristics of being simple in structure and low in cost and can be applied in an automatic control system having the high going-to-the-sun precision requirement in solar energy application.

Description

technical field [0001] The invention relates to the technical field of solar energy applications, in particular to a sun position detection device for automatic sun tracking control in solar energy applications, in particular to a sun position coordinate detection device based on image processing technology. Background technique [0002] As an environmentally friendly, green and sustainable new energy source, solar energy is being actively researched on the development and utilization of solar energy all over the world. Theoretical studies have shown that compared with fixed-point solar power generation devices, automatic tracking solar power generation devices can increase the efficiency of solar energy reception by 35%. Automatic tracking solar power generation is a new technology and product highly recommended in the field of solar power generation in the world today. To realize automatic tracking solar power generation, it is necessary to know the real-time azimuth and ...

AI Technical Summary

Problems solved by technology

There are many ways to obtain the azimuth and altitude of the sun. One method is to use mathematical calculations to obtain the real-time azimuth and altitude of the sun. However, the data obtained by this method has no feedback and is directly affected by mechanical structure errors in actual use. It can only be used in occasions where the accuracy of the sun's position is not high; another method is to use photoresistors for optical detection to determine the sun's position. This method is not affected by mechanical structure errors, but due to the characteristics of the photoresistor itself. In addition to the relatively rough detection accuracy, the stability is not good enough, and it can only be used in occasions where the accuracy of the sun position is not high.

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