Obtaining method of interception factor of trough parabolic concentrator based on image processing

A parabolic concentrator and trough paraboloid technology, applied in the field of solar energy applications, can solve problems such as labor consumption and low efficiency, and achieve the effect of improving work efficiency and saving labor costs

Inactive Publication Date: 2019-05-21
SICHUAN UNIV
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Problems solved by technology

This method is undoubtedly very labor-intensive and inefficient.

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  • Obtaining method of interception factor of trough parabolic concentrator based on image processing
  • Obtaining method of interception factor of trough parabolic concentrator based on image processing
  • Obtaining method of interception factor of trough parabolic concentrator based on image processing

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Embodiment Construction

[0030] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0031] Any feature disclosed in this specification, unless specifically stated, can be replaced by other alternative features that are equivalent or have similar purposes. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0032] figure 1 Shown is a schematic diagram of the structure of a trough parabolic concentrator. Its structure is very simple. The paraboloid 1 reflects and gathers sunlight into the heat collecting tube 2, thereby converting solar energy into heat energy. In practical application, the paraboloid 1 is not a complete and continuous mirror, but a plurality of square plane mirrors attached to the paraboloid. figure 2 It is a plan view of paraboloid expansion, and in the present embodiment, 7 * 4 sma...

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Abstract

The invention discloses a method for acquiring the interception factor of a trough-type paraboloid condenser based on image processing, and relates to the technical field of solar energy application. The method comprises an image capturing step of installing an image acquisition device at a distance to the trough-type paraboloid condenser and controlling the image acquisition device to take a front view of the trough-type paraboloid condenser; a position data recording step of measuring the relative position of the image acquisition device and the paraboloid condenser; a heat collection pipe black belt theoretical position calculation step; a coordinate transformation step of transforming the theoretical position of a black belt on the longitudinal section of a paraboloid into a pixel coordinate of a corresponding mirror on the paraboloid; a black belt image processing steps; a mirror intercepting factor expression step of calculating the light escape area of a mirror black belt region according to the theoretical black belt image sequence and the actual black belt image sequence of a certain mirror and drawing the escape area on the black belt theoretical position on the mirror.

Description

technical field [0001] The invention relates to the technical field of solar energy applications, in particular to a method for obtaining the interception factor of a trough parabolic concentrator. Background technique [0002] The trough parabolic concentrator is a classic way of solar energy utilization. see figure 1 . The solar energy is reflected by the parabola and concentrated on the heat collecting tube located in front of the parabola, thereby converting the solar energy into heat energy. Ideally, people hope that the paraboloid can gather more light into the heat collecting tube, so how much sunlight can be gathered by the paraboloid into the heat collecting tube is a concern of people. This requires detection of some indicators of the concentrator, such as interception factor, focal line error, and tangent line error. [0003] In the prior art, technicians measure the paraboloid on site to know its light-gathering performance. This method is undoubtedly very l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/70G06T5/00G06T7/10
CPCG06T5/009
Inventor 刘奇黄韫栀韩路易何凌周学斌李昌聪
Owner SICHUAN UNIV
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