Automatic tracking type solar scattered radiation measuring instrument and measuring method

Abstract

The invention relates to an automatic tracking type solar scattered radiation measuring instrument and a measuring method. The device comprises a solar scattered radiation measuring device, a controller and an upper computer, the solar scattered radiation measuring device is in wireless connection with the controller, and the controller is in wireless connection with the upper computer. The longitude and latitude of a measurement site, the local time and the initial placement orientation of the automatic tracking type solar scattered radiation measurement instrument are obtained through the Beidou positioning time service module of the controller, and the declination angle, the elevation angle and the azimuth angle of the sun are calculated through the geometrical optics principle of the sun; the declination angle, the elevation angle and the azimuth angle of the sun at each moment when the number of days is n are used for controlling the solar scattered radiation measuring device to track the sun for position change, the solar scattered radiation measuring device obtains radiation voltage, and a solar scattered radiation value is calculated through the controller and transmitted to the upper computer for display and data storage. The solar scattered radiation measuring device can accurately and automatically operate, and an expensive optical tracking device is not needed.

Description

technical field [0001] The invention relates to an automatic tracking type solar scattered radiation measuring instrument and a measuring method, belonging to the technical field of solar radiation intensity measurement. Background technique [0002] The intensity of solar radiation has always been an important parameter in the fields of new energy utilization, meteorological monitoring and architectural design. For example, in data collection sites such as meteorological monitoring stations, it is necessary to measure data such as ambient temperature, wind speed, and solar radiation irradiance in real time. Solar radiation can be divided into direct radiation and diffuse radiation. After measuring the total solar radiation intensity, the other data can be obtained through direct radiation or diffuse radiation data. So as to provide data reference for the design of new energy systems, meteorological analysis and prediction, and building insulation design. [0003] The sola...

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Problems solved by technology

[0004] The present invention aims at the problems of the solar radiation measuring equipment in the prior art, and provides an automatic tracking type solar radiation measuring instrument and a measuring method. The requirements are not high; the data acquisition and transmission device can operate independently and automatically, and calculate the declination angle, altitude angle and azimuth angle of the sun through the principle of solar geometric optics; the declination angle and altitude of the sun at each time when the number of days is n Angle and azimuth and control the solar radiation measurement device to track the sun for position change, the solar radiation measurement device obtains the radiation voltage, calculates the solar radiation value through the controller and transmits it to the host computer for display and data storage

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