Heliostat light spot size measurement method and device

A technology of heliostat and light spot, which is applied in image data processing, complex mathematical operations, instruments, etc., can solve the problems of limited rotation speed of heliostat and increase the complexity of control system, and is helpful for precise adjustment and improvement of standards. The effect of improving the efficiency of measurement

Pending Publication Date: 2022-02-08
ZHEJIANG SUPCON SOLAR TECHNOLOGY CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The existing technology has the following defects: due to the need to take background photos, the control system needs to cooperate with the shooting camera to repeatedly adjust the heliostat spot to the target and then move it out of the target in the scene where the optical accuracy needs to be measured at different times of the day. Increased the complexity of the control system; due to the limit

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Heliostat light spot size measurement method and device
  • Heliostat light spot size measurement method and device
  • Heliostat light spot size measurement method and device

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0045] In order to clearly illustrate the technical solutions of the embodiments of the present invention or in the prior art, specific embodiments of the present invention will be described below with reference to the drawings. It will be apparent that the drawings in the following description are merely some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings according to these drawings without paying creative labor, and obtained Other embodiments.

[0046] In order to make the drawing, only the parts associated with the present invention are schematically shown, which do not represent the actual structure of the product. In addition, it is schematically illustrated in one of some of the same structures or functions to make the drawing, and only one of them is schematically illustrated, or one of them is schematically illustrated. In this article, "one" not only means "only one", but also "more than one" situation.

[0047]...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a heliostat light spot size measurement method and device, and the method comprises the following steps: S1, projecting a heliostat light spot to a target, obtaining an image, and determining the center coordinate of the light spot according to the zero moment of the gray scale of a graph in a target region; S2, according to the covariance matrix CXY of the image in the X direction and the Y direction, obtaining two feature vectors and feature values of the covariance matrix CXY, so that the long and short semi-axis directions and the axis length of an ellipse corresponding to a heliostat light spot are obtained; S3, based on the two feature vectors of the covariance matrix CXY and the feature values of the two feature vectors, obtaining the heliostat light spot size through measurement. According to the invention, a background image of the light spot not on the target does not need to be collected, the light spot measurement efficiency is improved, a noise filtering threshold does not need to be assigned manually, and the standard of light spot measurement is improved.

Description

technical field [0001] The invention belongs to the technical field of solar thermal power generation, and in particular relates to a heliostat spot size measurement and device. Background technique [0002] Solar thermal power generation is a major way of utilizing solar energy at present. At present, solar thermal power generation adopts the method of tower solar thermal power generation. The tower solar thermal power generation system uses a heliostat that tracks the sun in real time to reflect sunlight to the heat absorber on the tower, and generates heat by heating the heat-absorbing working medium inside. High-temperature and high-pressure steam drives a turbogenerator to generate electricity. [0003] see figure 1 , the heliostat field is an important part of the tower solar thermal power plant system, and the heliostat field usually consists of thousands of heliostats. The optical accuracy of a heliostat is the degree to which the surface of the specified heliosta...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06T7/60G06T7/66G06F17/16
CPCG06T7/60G06T7/66G06F17/16
Inventor 薛刚强宓霄凌李建华杨都堂王冬冬
Owner ZHEJIANG SUPCON SOLAR TECHNOLOGY CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products