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Intelligent sun tracking method

A technology of intelligent tracking and sun azimuth, applied in the field of intelligent tracking of the sun, can solve the problem of low tracking accuracy and achieve the effect of accurate sun

Inactive Publication Date: 2015-11-18
刘丰
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  • Abstract
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Problems solved by technology

[0004] The invention provides a method for intelligently tracking the sun, which solves the problem of low tracking accuracy of the existing sun tracking method

Method used

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with embodiment.

[0029] A method for intelligently tracking the sun, comprising the steps of:

[0030] Step 1, select a latitude, solar declination and hour angle according to the local geographic location, and calculate the solar altitude and solar azimuth

[0031] sinH=sinφsinδ+cosφcosδcost

[0032] cosA=(sinφsinδ-sinδ) / cosHcosφ

[0033] Among them, φ is the latitude of the local geographic location, δ is the solar declination, and t is the hour angle. The above formula can calculate the solar altitude angle H and the solar azimuth angle A;

[0034] Step 2, method initialization, enter the time waiting, the waiting time is 10 minutes, the GPS satellite data acquisition module obtains the local time, which sets the winter from 8:00 to 18:00 during the day, night from 18:00 to 8:00 the next day, and summer Set the time from 7:00 to 19:00 as daytime, and from 19:00 to 7:00 the next day as night;

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Abstract

The invention provides an intelligent sun tracking method. The latitude, the sun declination and the hour angle of the geographical position of a local place are obtained according to a GPS satellite data obtaining module, a sun elevation angle and a sun azimuth are calculated through an equation, and a motor is driven to enable a solar panel to track the sun so as to realize active tracking; and then illumination intensities in different directions are obtained according to illumination sensors, the illumination intensities are compared and analyzed, the motor is further driven for fine adjustment so as to realize passive tracking, the solar panel is enabled to track the sun more accurately and maintains vertical to sunshine in real time, and the problem of low sun tracking precision in the prior art is solved.

Description

technical field [0001] The invention relates to a tracking method, in particular to a method for intelligently tracking the sun. Background technique [0002] The sun tracking method can be used in various solar energy collection systems, especially in solar power generation systems and solar water heaters, which can effectively improve the efficiency of solar energy collection. The efficient solar tracking method can control the collection device to be perpendicular to the sunlight. [0003] At present, there are two sun tracking methods, one is the active tracking method, which uses photosensitive devices to perceive the intensity of sunlight to judge the sun's orientation. Chinese patent ZL200510094900.8 discloses a sun tracking device and tracking method based on tracking attitude feedback. This tracking method includes calculating the local solar declination and time difference by using longitude, latitude and date time, calculating the solar azimuth and altitude in re...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D3/12
Inventor 刘丰
Owner 刘丰
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