KR20110030249A - Device for tracking position of solar and method thereof - Google Patents

Abstract

PURPOSE: A device and a method for tracking the position of sun are provided to increase the accuracy of the position tracking of sun using first and second image collecting units. CONSTITUTION: A device for tracking the position of sun comprises a position tracking box(10), a first image collecting unit(20), a second image collecting unit(30) and a sun position calculating unit. The position tracking box is driven so that it is possible to track the position of sun. The first image collecting unit senses light, which emits from the sky. The second image collecting unit senses light from an image-formed surface. The sun position calculating unit calculates the position of sun using taken images.

Description

Device for tracking position of solar and method

The present invention relates to a sun position tracking device and method for tracking the position of the sun using an image acquisition camera or the like.

Applicant traces the position of the light source based on such characteristics of brightness as the light generated from the light source is farther away from the light source, so that even if there are clouds, abnormal weather phenomena or physical interference, etc. The device and method for tracking the position of the sun has been developed and patented, and has been patented by patent 0732397.

Conventional solar tracking devices, including the patented invention, photograph the sun with a camera to track the location of the light source, ie the sun, which uses a filter in front of the lens to protect the lens. When the filter is used, the transmittance of the sunlight incident to the lens is inevitably reduced due to the use of the filter. As a result, clouding or cloudy days may cause distortion due to unclear brightness difference. Limits are occurring.

For this reason, when constructing a filter, the filter should be made thin so that the transmittance is as high as possible. If it is used in such a state as it is exposed to sunlight for a long time, the life of the filter and the camera module is shortened, so it is frequently replaced or repaired. There is a problem that needs to be done.

The present invention has been made to solve the above problems, by using a second image collection device in conjunction with the first image collection device, by configuring the sun position tracking to improve the accuracy and reliability of the solar position tracking It is an object to provide a location tracking device and method.

In addition, the present invention, by using a second image collecting device for capturing an image of the sunlight incident through a fine hole formed on a certain point, simplify the structure of the solar position tracking device, it is possible to use for a long time economical It is an object of the present invention to provide a solar positioning apparatus and method that can improve the accuracy and reliability of solar positioning.

A solar location tracking device and method according to the present invention for realizing the above problems are as follows.

A solar location tracking device according to the present invention for realizing the above object, the location tracking box is driven to enable the location tracking of the sun; A first image collection device provided at one side of the location tracking box and disposed to face the sky including the sun in front and to photograph or detect light incident from the sky; A second image collection device provided at the other side of the location tracking box and configured to photograph or detect light incident on the image forming surface through any one of a fine hole or a condenser lens provided in the location tracking box; And a sun position calculating unit configured to calculate a sun position using the images captured by the first image collecting device and the second image collecting device.

The first image collecting device and the second image collecting device may be arranged in parallel to the position tracking box in parallel.

The first image collecting device and the second image collecting device are arranged in series in the position tracking box, wherein the first image collecting device is disposed in front of the solar incident direction, and the second image collecting device is the first image. It is also possible to be arranged in the rear so that light passing through the collecting device is incident.

The first image collecting device may include a filter, a condenser lens, and a first collecting camera for capturing light passing through the condenser lens in order of light incident on the location tracking box.

The first image collection device may be configured to detect light incident through a fine hole or a condenser lens provided in the location tracking box with one or more light receiving sensors.

The second image collecting device may include a fine hole or a condenser lens in which the sunlight is incident on the location tracking box and an image of light incident through the micro hole or the condenser lens in the interior of the location tracking box. It is also possible to include an imaging surface, and a second collecting camera provided on the inside of the position tracking box to take an image formed on the imaging surface.

The imaging surface is preferably provided with a reference mark so as to identify the target position for tracking the sun at the position where the direct sunlight of the sun reaches.

The imaging surface may be configured to be provided with one or more light receiving sensors for measuring the amount of sunlight incident.

The sun position calculating unit divides each image photographed by the first image collecting device or the second image collecting device into steps of brightness, and forms a circle in a distribution of brightness arranged in a wave shape centered on a high brightness point. It is preferable that the data can be calculated to derive one or more inscribed and circumscribed circles to calculate the position of the sun.

The sun position tracking device, preferably further comprises a tracking drive unit for moving the position tracking box to track the sun position according to the sun position calculation signal of the sun position calculation unit.

In addition, the solar position tracking device according to the present invention for realizing the above object, the position tracking box is driven to enable the position tracking of sunlight; A second image collection device provided in the location tracking box and configured to photograph or detect light incident through one of the fine holes or the condenser lens provided in the location tracking box and formed on an image forming surface; And a sun position calculating unit configured to calculate a sun position using the image photographed by the second image collecting device.

The second image collecting device may include a condensing lens installed at a portion where sunlight is incident from the position tracking box, an imaging surface provided inside the position tracking box to form light incident through the condensing lens, and And a second collecting camera installed in the location tracking box to photograph an image formed on the image forming surface, and the front central portion of the condenser lens is disposed to face the sky including the sun in front and to capture or detect light incident from the sky. The first image collecting device may be installed and configured.

In the second image collecting apparatus, when the condenser lens is installed at a portion where the sunlight is incident on the position tracking box, the second collecting camera may be installed on the rear surface of the condenser lens.

The second collecting camera may be installed in a direction opposite to the first image collecting device from the rear of the condenser lens.

The second image collecting device may include a filter plate including a second hole through which a portion of light passing through the micro hole through which sunlight is incident in the location tracking box is formed.

 The second collecting camera and the filter plate may be arranged to simultaneously capture an image incident through the micro holes and formed on the upper surface of the filter plate and an image formed on the image forming surface through the second hole of the filter plate. .

In addition, the second collecting camera may be configured to separate the camera for taking an image formed on the filter plate and the camera for taking an image formed on the image forming surface.

The present invention, in the sun position tracking method using the sun position tracking device as described above, the first position to move the position tracking box by first calculating the sun position using the image taken by the first image collection device Steps; And a second step of moving the position tracking box by calculating a second position of the sun using the image photographed by the second image collecting device after the first step.

At this time, in the first step and the second step, the sun position is calculated by dividing the images respectively taken by the first image collecting device or the second image collecting device in the step of brightness, and in the form of a wave shape around the point of high brightness It is preferable to calculate the sun position by deriving one or more inscribed circles and inscribed circles by calculating data close to the shape of the circle among the distribution of brightness arranged.

In the second step, it is preferable to track the position of the sun by moving the position tracking box so that the direct light incident into the second image collecting device reaches a specific region of the light collecting surface.

In addition, the present invention, in the sun position tracking method using the sun position tracking device as described above, by using the image taken by the first image collecting device to calculate the sun position primarily, the second image collecting device The position of the sun is secondarily calculated using the image photographed at, and the sun position is calculated by comparing the sun position calculation data calculated first and second.

In addition, the present invention, in the solar position tracking method using the solar position tracking device as described above, by acquiring the image formed on the condensing surface of the second image collecting device, the brightness in RGB or gray scale is classified step by step Calculates the sun's position by finding one or more inscribed or circumscribed circles, finds the location of the direct light, and moves the location tracking box so that the direct light reaches a specific area of the condensing surface. It is characterized by tracking the sun position.

The present invention, a light collecting device including a lens or a reflector for collecting sunlight; A tracking device that accurately tracks the position of the sun to adjust the light receiving position; Collecting apparatus for collecting the image of the collected sunlight using a lens or a reflector; Image is taken from the sunlight incident on the light collecting surface of the collector, and the brightness in RGB or gray scale is classified step by step, the distribution of which produces data close to the shape of a circle, and one or more inscribed and circumscribed sources. Deriving the position of the sun can be found, and the position of the sun may be configured to control the driving device to move a predetermined region on the light collecting surface.

According to the present invention, a plurality of image capturing apparatuses are used, wherein the first image capturing apparatus faces the sky including the sun in front, and the needle holes (fine holes) are formed in reverse phase by passing sunlight in close proximity to the first image capturing apparatus. Or at least one structure that installs a sufficiently small window and installs a second image collecting device that photographs the incident solar light in a direction opposite to that of the first image collecting device. The light source may be divided into steps of brightness and may be configured to derive one or more inscribed and circumscribed circles by calculating data close to the shape of a circle among distributions of brightness arranged in a wave shape around a point having high brightness.

In the above, the fine hole or window is preferably made of a controllable structure so that the image can be confirmed by adjusting the amount of light in the aperture structure.

In addition, the present invention is preferably configured to calculate the brightness or illuminance of the pixels of the image, to analyze the weather, the direction of movement of clouds, the reliability of sun tracking and the like.

In addition, the present invention may be configured to classify the distribution according to the brightness of light, calculate using a method of displaying a group of the same brightness in a mathematical size, and calculate the midpoint thereof.

Next, the present invention collects an image and analyzes the brightness distribution to precisely track the center of the sun. The first image collecting device faces the sky including the sun in front and the sun on one side of the first image collecting device. A microhole or a sufficiently small window through which light passes and a reversed phase is installed, and a second image collecting device is installed against the first image collecting device in a direction opposite to that of the first image collecting device so that a specific mark is displayed at a position where the direct sunlight of the sun, which enters the microhole, reaches. It is also possible to be configured in such a way to determine the desired position, and to move the direct sunlight of the sun to the desired position to transmit the difference in position to the drive device.

The present invention is smaller than the image size of the sun generated in each image collected, but the size of the image generated by the scattering or clouds, interferences, etc. that are separated in the same way as the sun in the process of dividing the stage of brightness or less by a certain size It is also possible to apply a technique to delete.

The present invention, in the known solar tracking device that tracks the position of the sun by a calculation formula or programmatically, in order to increase the accuracy of the tracking, to check the accuracy of the position data of the sun found by the calculation formula, the tracking operation Verification of the tracking of the solar position by matching the center of the sun obtained from the highly reliable image with the position data and comparing the motion of the image with the calculated equation data to calculate the precision and reliability of the tracking. The method can be implemented.

In addition, the present invention, in the method for tracking the position of the sun, in the case of a large ellipse or a long radial and the difference in brightness occurs as the distance away from the center, the change in brightness is directed to confirm the installation error of the light collecting device or malfunction of the tracking device The solar position tracking device can be used to realize the solar position tracking verification method to check the deviation.

The present invention, a box-shaped solar light collecting device including a lens; A collecting device for collecting images is disposed at the center of the lens, with the first image collecting device facing outward of the lens, and the second image collecting device facing toward the inner side of the lens so as to face the sun and the light collecting surface. and; The image of the light collected through the lens around the image acquisition device is obtained from the light collected from the step by step to distinguish the brightness in RGB or gray scale step by step, the distribution of the data close to the shape of the circle to calculate the one or more A solar position tracking method can be realized by deriving an inscribed circle and an circumscribed circle to find the position of the sun and to control the driving device to move to the target area.

The present invention, a box-shaped solar light collecting device including a lens; A collecting device for collecting images is disposed at the center of the lens, with the first image collecting device facing outward of the lens, and the second image collecting device facing toward the inner side of the lens to face the light collecting surface. and; The lens may be configured to detect a change or movement of light collected on a light collecting surface through a lens around the image collecting device.

The present invention is configured to track the position of the sun in the form of reducing the size by reducing the distance between the light collecting surface and the lens by changing the position of the condensing image by changing the direction of the light collected by installing a mirror or a reflecting plate inside the lens. It is possible.

The present invention, the solar tracking device using a reflector; The image collecting device may be installed at the center of the reflecting plate facing the condensing surface, and may be configured to control the driving device to move the reflected sunlight to a designated area on the condensing surface through image processing.

According to the present invention, an image collecting device is installed in the center of a reflecting plate facing the condensing surface, and the image of the sunlight reflected to a designated area on the condensing surface is divided into a step of brightness, and is arranged in a wave shape around the point of high brightness. It may be configured to derive one or more inscribed and circumscribed circles by calculating data close to the shape of the circle among the distribution of brightness.

The present invention can implement a sun position tracking method of the type installed on one side without limiting the position of the image collecting device to the inside of the lens.

The present invention may be configured in such a way that the movement of light reaching the light collecting surface is used as one or more solar cells or light sensors installed in the target region of the light collecting surface.

The present invention is a method for fine-tuning the deflection or installation error of the device generated when a plurality of concentrators are connected to one tracking device to move in a group, by moving the object located on the condensing surface in all directions It is also possible to implement a fine adjustment method of the solar position tracking device of operating a compact drive device in terms of the moving distance.

The present invention can constitute a solar position tracking device for disposing a heat sink device for delaying or preventing the temperature rise on one or more sides so that the object located on the light collecting surface is not damaged by solar heat.

The present invention, it is possible to configure a solar position tracking device to move in parallel by fixing a plurality of light collecting devices in parallel to the solar position tracking device installed on one side.

The present invention can constitute a solar position tracking device of a parallel control method that operates a plurality of light collecting devices through data obtained by the light collecting device through communication.

The main problem solving means of the present invention as described above, will be described in more detail and clearly through examples such as 'details for the implementation of the invention', or the accompanying 'drawings' to be described below, wherein In addition to the main problem solving means as described above, various problem solving means according to the present invention will be further presented and described.

The solar location tracking device and method according to the present invention can increase the accuracy and reliability of the solar location tracking because it is configured to track the sun location by using the second image collection device together with the first image collection device. Will have an effect.

In addition, the present invention, by using a second image collecting device that collects the image of the sunlight imaged at a certain point alone, it is possible to simplify the structure of the solar position tracking device, and also to increase accuracy and reliability. Will have

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a schematic view of a first embodiment showing a solar position tracking device according to the present invention, the first image collection device and the second image collection device is a diagram of an embodiment configured together.

The sun position tracking device according to the present invention illustrated in these figures is configured to accurately track the center of the sun by collecting the image of the celestial sphere and analyzing the brightness distribution, the first image collecting device in the position tracking box 10 20 and the second image collecting device 30 may be arranged in parallel.

In this case, the first image collecting device 20 and the second image collecting device 30 do not necessarily need to be configured in one position tracking box 10, and may be separately configured as necessary. However, it is preferable to be integrally configured to move simultaneously by one tracking drive for more accurate sun tracking.

The first image collecting device 20 is disposed in the order of the filter 21, the condenser lens 23, and the first collecting camera 24 in the direction in which sunlight is incident.

The filter 21 is installed at the outermost side of the first image collecting device 20 to protect the condenser lens 23. In this case, since the second image collection device 30 is configured together, a relatively thicker filter 21 may be used than in the related art, and thus the service life of the filter 21 may be extended. In addition, by installing an aperture (not shown) or the like in front of the filter 21, when using the first image collection device 20, it is also possible to be configured to open only when, for example, to track the position of the sun first.

The condenser lens 23 functions to collect sunlight from the first collection camera 24, and a Fresnel lens or the like having a flat plate structure may be used. In addition, a reflector may be provided at positions before and after the condenser lens 23 to collect sunlight.

On the other hand, the condensing lens 23 may be omitted in the case where the size can be changed, for example, by configuring the size of the solar light incident hole, which is the portion where the filter 21 is installed, to be very small. Do.

The first collection camera 24 is configured to collect light incident on the light collecting surface as an image and output the image to the controller.

Through the first image collecting device 20 configured as described above, an image is obtained from sunlight incident on the condensing surface of the first collecting camera 24, and the brightness in RGB or gray scale is classified step by step, and the distribution thereof is It is constructed to calculate data close to the shape of a circle and to derive one or more inscribed and circumscribed circles to find the exact position of the sun. Since the solar position calculation method is disclosed in detail in the applicant's patent 0732397, a detailed description thereof will be omitted.

In the second image collecting device 30, unlike the first collecting camera 24 of the first image collecting device 20 arranged to face the sun, that is, toward the sky, the second collecting camera 35 may include the first image. Installed in the opposite direction to the first collection camera 24 in a position close to the collection device 20 to correct the sun tracking error estimated by the first image collection device 20, or to track the sun position more precisely Is configured for.

The second image collecting device 30 includes a fine hole 31 formed in the position tracking box 10, an image forming surface 33 on which light incident through the hole 31 is formed, and the image forming surface. And a second collecting camera 35 which receives the light reflected at 33 and acquires an image.

Here, the fine hole 31 may be composed of a needle hole or a sufficiently small window that allows the reverse phase to form on the condensing surface. At this time, the fine hole 31 may be configured to be controlled so that the image can be confirmed while adjusting the amount of light in the aperture structure.

Inside the position tracking box 10 constituting the second image collecting device 30, when a reflector is installed in the light inflow path in front of the image forming surface 33, the direction of light incident through the fine hole 31 is provided. By changing the position, the overall size of the position tracking box 10 can be reduced by reducing the overall length from the fine hole 31 to the image forming surface 33 by changing the position of the final binding image.

Particularly, the imaging surface 33 is provided with a specific mark such as a reference mark M at a position where the direct sunlight of the sun incident through the fine hole 31 reaches, to determine a target position for sun position tracking, and to establish an imaging surface ( In (33), the difference between the position where the direct sunlight of the actual sun reaches and the specific display unit is calculated by the image acquisition operation of the second collecting camera 35, so that the position where the direct sunlight of the sun reaches coincides with the reference mark M. It can be configured to track the position of the sun by moving (rotating) the position tracking box 10. In general, the reference mark M is preferably present at a position perpendicular to the imaging surface 33 from the fine hole 31.

The specific display unit may be a reference mark M that can be recognized by the second collection camera 35, but if necessary, a solar cell or an optical sensor may be installed in a specific display area instead of the reference mark M. It is also possible. One or more of the reference mark M, the solar cell, and the optical sensor may be provided in a specific display area or a target area.

The second image collecting device 30 also divides the image incident through the needle hole into the steps of brightness in the same manner as the first image collecting device 20, and distributes the brightness arranged in a wave shape around the point where the brightness is high. The position of the sun is tracked in such a way that one or more inscribed and inscribed circles are derived by calculating data close to the shape of a circle.

The second image collecting device 30 uses the difference in brightness when the light incident through the fine hole 31 is far from the center in a long ellipse or a long radial shape, and thus a large brightness difference is generated. Installation errors or tracking device malfunctions can also be checked.

The solar position tracking device of the present invention as described above, when tracking the position of the sun by using the first image collecting device 20 and the second image collecting device 30, the correct light receiving position, that is, the sunlight light collecting surface Or it is also configured with a tracking device for moving the entire position tracking box 10 to adjust the position or the like orthogonal to the reflective surface. Of course, the tracking driving device for driving the tracking device and the control device for controlling the same are also configured.

The tracking device including the location tracking box 10, the driving device and the control device for driving the tracking device 10 may be configured using a known tracking device that can track the location of the sun according to the change in the azimuth and altitude of the sun. For example, the present applicant has disclosed a patent application and disclosed in patent 0814343, patent 0814345, patent 0905729, or published patents 10-2009-0121158, 10-2008 -0077937, 10-2008-00311, and the like. It can be configured in such a way that the position tracking box 10 is mounted on the tracking device. That is, the location tracking box 10 of the present invention may be mounted on the solar panel or similar structure disclosed in the registered patent or published patent, or may be installed integrally. Of course, instead of a structure such as a solar panel, only the location tracking box 10 may be installed to be configured to track and drive.

In the embodiment of the present invention as described above, by analyzing the brightness or illuminance of the pixels of the image obtained through the first image collecting device 20 and the second image collecting device 30 to analyze the weather, the movement direction of the cloud, etc. It is desirable to be configured to increase the reliability of the solar tracking. In addition, it is preferable that the distribution according to the brightness of the light is divided, calculated using a method of displaying a group of the same brightness in a mathematical size, and the center of gravity (the center of the sun) is preferably configured. At this time, it is smaller than the image size of the sun generated in each collected image, but in the process of dividing the stage of brightness, the image generated by scattering, clouds, interference obstacles, etc., which are distinguished from the sun, is measured to remove the size below a certain size. It is desirable to calculate the position of the sun.

On the other hand, the solar position tracking method using the solar position tracking device of the present invention, it is possible to use a known solar tracking calculation program, such as a formula for calculating the position of the sun according to the season and time, or a program using the same, bar calculation A method for confirming the accuracy of the solar position data found by the formula and confirming the operation status of the tracking device of the present invention in operation, the sun obtained from the position data by the formula and the image obtained through the above-described solar position tracking device It is also possible to increase the accuracy and reliability of tracking the position of the sun by matching the centers of the images and finally extracting the position of the sun by comparing the motion of the image with the calculated equation data.

Hereinafter, in describing other embodiments of the present invention, the same reference numerals are given to the same or similar components as those of the above-described first embodiment, and repeated description thereof will be omitted.

FIG. 2 is a schematic diagram of a second embodiment showing a solar position tracking device according to the present invention, which is generally similar to the configuration of the first embodiment of the present invention described above, but further includes light receiving sensors 37 on an image forming surface 33 side. Is installed.

The light receiving sensor 37 is configured to track the position of the sun by measuring the amount of light incident through the micropores 31 reaching the image forming surface 33, that is, the amount of received light. That is, it is configured to determine whether the sun reaches the direct light according to the magnitude of the signal generated by each light receiving sensor 37 at each position.

At the same time, an image formed on the imaging surface 33 may be photographed through the second collection camera 35 to be used to track the position of the sun.

Therefore, by measuring the amount of light received by the light receiving sensors 37, and by taking an image through the second collecting camera 35 to calculate the sun position according to the brightness is configured to enable more accurate sun position tracking. Of course, as described in the first embodiment, by extracting the position data of the sun calculated by each of the first image collecting device 20 and the second image collecting device 30, the more accurate solar position tracking It becomes possible.

3 is a schematic diagram of a third embodiment in which the solar position tracking device according to the present invention is shown. In the above-described second embodiment, the second collecting camera is omitted.

That is, in the state where the second collection camera 35 is deleted, the light incident through the micro holes 31 is measured by the plurality of light receiving sensors 37 to calculate and track the sun position. At this time, the sensor plate 33 'is installed instead of the imaging surface.

Also in this embodiment, by integrating and extracting the position data of the sun respectively calculated by the first image collecting device 20 and the second image collecting device 30, more accurate sun position tracking becomes possible.

4 is a schematic view of a fourth embodiment showing a solar position tracking device according to the present invention. The second image collecting device 30 is the same as that of the first embodiment, but the first image collecting device 20 is not shown. Is configured differently from the first embodiment.

Unlike the first image collection apparatus described above, the first image collection apparatus 20 according to the present embodiment is a solar sensing device. For convenience of description, the first image collection apparatus 20 is described as being integrated into the first image collection apparatus.

The first image collecting device 20 made of the solar sensing device is preferably composed of a fine hole 25 and a light receiving sensor 26 for measuring light incident through the fine hole 25.

In this case, it is preferable that one or more of the light receiving sensors 26 are installed to be configured to calculate the sun position according to the amount of light received.

In addition, it is also possible to provide a condensing lens in place of the fine holes in the portion where the fine holes 25 are formed.

In the fourth exemplary embodiment of the present invention, the sun position data, which is calculated by integrating and extracting the position data of the sun, respectively, which is calculated by the first image collecting device 20 and the second image collecting device 30, respectively, are more accurate. Tracking is possible.

In the above-described first to fourth embodiments, the configuration of the embodiment provided with a plurality of image acquisition apparatuses has been described. In the fifth and sixth embodiments to be described below, the configuration will be described based on the configuration of a single image collection device.

FIG. 5 is a schematic diagram of a fifth embodiment in which the solar position tracking device according to the present invention is shown, in which the second image collecting device 30 in the above-described second embodiment is configured by itself.

That is, the minute hole 31 is formed in the location tracking box 10, and an imaging surface 33 is provided therein, and the collection camera 35, which is an image collection unit, is located at an upper position of the location tracking box 10. Is located.

In addition, one or more light receiving sensors 37 may be installed on the imaging surface 33. Of course, it is also possible to omit the light receiving sensor 37 and to constitute the reference mark M or the solar cell.

In this embodiment, a tracking device for accurately tracking the position of the sun, a driving device and a control device for driving the light, etc. are configured to adjust the light receiving position.

Therefore, the brightness of the image obtained through the acquisition camera 35 in the RGB or gray scale is classified step by step, the distribution of the data to approximate the shape of the circle, derive one or more inscribed circles, circumscribed circles to derive the position of the sun Find it. Based on this, the solar position tracking device is moved, and at the same time, the position of the solar panel is also controlled to rotate to a position where solar light receiving efficiency is high.

Of course, in the case of tracking the position of the sun by using a single image collecting device as described above, it is preferable to track the position of the sun using a formula that calculates the position of the sun according to season and time or a program using the same.

Since the formula for calculating the position of the sun according to the season and time or a program using the same is well known, a detailed description thereof will be omitted.

6 is a schematic view of a sixth embodiment showing a solar position tracking device according to the present invention, and shows a configuration of an embodiment in which a condenser lens 32 is installed in the position tracking box 10.

That is, a condenser lens 32 for condensing sunlight is provided, and a collection camera 35 for capturing an image formed on the image forming surface 33 is configured.

In the above-described fifth embodiment, since it can be configured in the same manner as the configuration of the fifth embodiment except that the fine hole 31 is replaced with the condenser lens 32, repeated description is omitted.

In particular, since the condenser lens 32 is used in the present embodiment, the solar cell may be directly installed at the focal portion of the condenser lens 32, and thus the solar energy may be used.

FIG. 7 is a schematic diagram of a seventh embodiment in which the solar position tracking device according to the present invention is shown, and shows the configuration of an embodiment in the case of tracking the sun position using the large condensing lens 32A.

Here, the large condensing lens 32A may be configured as a lens having a size of approximately 20 m to 1 m or more, which is larger than a general camera lens. Of course, lenses of 20 cm or less are also possible.

The large condensing lens 32A is installed in the position tracking box 10, and the first image collecting device 20 and the second image collecting device 30 are respectively installed outside and inside the large condensing lens 23. .

That is, the first collecting camera 24 of the first image collecting device 20 is installed at the center of the outer surface of the condenser lens 32A to directly capture the celestial image and track the position of the sun.

In addition, the second image collecting device 30 includes an imaging surface 33 provided on the condensing surface of the condenser lens 32A and an image formed on the imaging surface 33 in the position tracking box 10. It consists of two collection cameras 35. At this time, the second collecting camera 35 is disposed inside the central portion of the condenser lens 23. At this time, the camera constituting the first image collecting device 20 and the second collecting camera 35 is preferably used as small as possible so as not to interfere with sunlight incident.

In addition, the focal portion of the condenser lens 32A of the imaging surface 33 may be configured by providing a reference mark M, an optical sensor, a solar cell, or the like.

In particular, the second collection camera 35 tracks the position of the sun by detecting a change or state of light collected on the imaging surface 33. When the focal length becomes long or located at a different portion from the reference mark M, It is determined that the sun is not located in the vertical direction, and the position is corrected. When the focal point and the reference mark M coincide with each other, it is determined that the sun is in the vertical direction and the sun position is tracked.

Meanwhile, in the above-described exemplary embodiment, the first and second image collecting apparatuses 20 and 30 are both focused on the configuration, but according to the exemplary embodiment, the rear surface of the central portion of the condenser lens 32A may be provided. It is also possible to configure only the second image collecting device 30.

8 is a schematic view of an eighth embodiment in which the solar position tracking device according to the present invention is shown. In the configuration of the seventh embodiment described above, the position of the second collecting camera 35 is not the center of the condenser lens 32A. An embodiment in a state where the sun is installed outside the light collecting area is shown. Since the other configurations are the same as the configurations of the seventh embodiment described above, repeated descriptions are omitted.

9 is a schematic diagram of a ninth embodiment in which the solar position tracking device according to the present invention is shown, and shows a configuration in which the filter plate 38 is provided in the configuration of the fifth embodiment.

That is, the filter plate 38 is installed in the middle of the position tracking box 10 in the horizontal direction, and is formed for diffraction of light on the lower side perpendicular to the micro holes 31 (or the first holes) positioned at the top. The second hole 39 is formed to pass through the image formed on the upper portion of the filter plate 38 through the second collecting camera 35 and the second hole 39 of the filter plate 38 to the image forming surface 33. It is configured to track the position of the sun by photographing condensed images.

At this time, the filter plate 38 does not interfere with photographing an image in which direct light passing through the second hole 39 of the filter plate 38 forms on the image forming surface 33 by the second collecting camera 35. It is preferable to be installed in such a length that it does not. That is, the filter plate 38 is positioned only to a certain length from the right side to the left side of the position tracking box 10 as shown in FIG. 9, and the left space is configured to allow the second collecting camera to photograph the imaging surface 33.

In addition, the distance between the filter plate 38 and the image forming surface 33 is preferably set so close that the light passing through the second hole 39 does not extend too much when it forms on the image forming surface 33.

When the filter plate 38 having the second hole 39 is formed in this manner, the light passing through the upper micro holes 31 is primarily formed on the upper surface of the filter plate 38. The first hole, that is, the light is formed in the upper part of the filter plate 38 in a state of diffraction to some extent while passing through the fine hole 31, and at the same time, only light close to direct light among the light diffracted while passing through the fine hole 31 is filtered. After passing through the second hole 39 of the plate 38, it is formed in the image forming surface 33 in the second order. In this case, the second collection camera 35 may capture both the primary image formed on the filter plate 38 and the secondary image formed on the image forming surface 33, and may implement a method of extracting the sun position by comparing the two images. . In particular, diffraction light spreading widely among the light passing through the fine hole 31 through the second hole 39 of the filter plate 38 and formed in the image forming surface 33 is blocked by the filter plate 38 and is exposed to direct sunlight. Since only light close to reaches the image forming surface 33 by passing through the second hole 39, the image is formed, and thus, more accurate solar position tracking can be achieved.

FIG. 10 is a schematic diagram of a tenth embodiment showing a solar position tracking device according to the present invention, which is generally similar to the structure of the ninth embodiment described above, but is formed on the image and imaging surface 33 formed on the filter plate 38 '. It is configured to implement a manner of tracking the position of the sun by photographing the image to form each of the second collection camera (35A, 35B).

To this end, the filter plate 38 ′ is disposed in the position tracking box 10 so as to completely distinguish the upper part from the lower part, and a second hole 39 ′ penetrating the upper and lower parts is formed. In addition, two second collection cameras 35A and 35B are respectively provided at the bottom of the top surface of the position tracking box 10 and at the bottom of the filter plate 38 '.

The other configuration is the same as the configuration of the ninth embodiment described above, and thus repeated description is omitted.

FIG. 11 is a schematic diagram of an eleventh embodiment in which a solar position tracking device according to the present invention is shown, and shows a configuration in which a second image collecting device 30A is disposed below the first image collecting device 20A.

That is, in the first image collecting device 20A, a microhole 21 'having a long slit type between 0 and 90 microseconds is formed, and the solar light incident through the microhole 21' is first received. It is configured to collect by shooting with the collection camera 24 '. At this time, it is preferable to be formed long in the vertical direction which is the altitude direction of the sun. It uses a known solar tracking system that tracks the sun's position by calculation formula or programmatically, and tracks the sun's position according to the azimuth angle of the sun. If possible, it is configured to enable more accurate sun position tracking.

In addition, the second image collecting apparatus 30A may have an image plane through a fine hole 31 in which some of the sunlight incident into the first image collecting apparatus 20A is formed at the rear of the first image collecting apparatus 20A. 33) is configured to capture and collect the image collected by the second collection camera (35 ').

In various embodiments of the present invention as described above, the heat sink or heat dissipation to delay or prevent the temperature rise on one side or more so that the object, that is, the reference mark (M) or the Teyang battery cell located on the light collecting surface is not damaged by solar heat. A cooling device etc. can be arrange | positioned.

The solar location tracking method of the present invention using the solar location tracking device of various embodiments according to the present invention as described above will now be described.

12 illustrates a control configuration when both the first image collecting device and the second image collecting device are configured.

As shown in FIG. 12, after image information photographed by the first image collecting device 20 and the second image collecting device 30 is input to the control unit, the control unit 50 calculates the sun position to track the driving unit ( By operating 60) the tracking device including the solar panel or location tracking box 10 is driven to track the position of the sun.

The control unit 50 is largely a tracking drive signal output unit 53 for outputting a tracking drive signal in accordance with the signal of the solar position (area) calculation unit 51, the solar position calculation unit 51 or the central processing unit 52. According to the signal of the tracking drive signal output unit 53, the solar cell panel or the location tracking box 10 may be configured as a tracking driver 60 for driving the sun accurately.

The solar position calculating unit 51 is configured to calculate the sun position by using image information input to the first image collecting device 20 and the second image collecting device 30, together with the central processing unit 52 or Can be configured separately. At this time, the central processing unit 52 combines the information calculated by the sun position calculation unit 51, and serves to calculate the desired sun position tracking information.

The sun position calculating unit 51 and the central processing unit 52, for example, first calculate the sun position by using the image data of the first image collection apparatus 20, and based on the sun position data calculated first By using the image data of the second image collecting device 30 to calculate the second position of the sun, it can be configured to accurately track the sun position to output the drive signal.

Next, a process of calculating the solar position using each collection device will be described.

First, the sun position calculation process using the first image collection apparatus 20 will be described.

In FIG. 13, (a) is a photograph of a sky (heavy celestial sphere) in which the sun exists using a first collecting camera, and FIG. 13 (b) is a photograph in which the image of (a) is expressed in eight levels of brightness. Compared to the picture in a), the brightness of the center is about twice as large as the brightest area in the center, which treats each stage with similar brightness in the same color, so that parts other than the original center are recognized as the center area.

Accordingly, in the case of the image, when the area is divided based on the brightness step 8 shown in FIG. 13B, a circle is formed based on the boundary line of the area, and the highest brightness circle may be calculated. (C) of FIG. 13 is a photograph in which (a) of FIG. 13 is expressed in 16 steps according to the brightness, FIG. 13 (d) is a photograph in 30 steps, and (e) in FIG. 13 is a photograph in 60 steps. As you increase the number of steps by dividing the brightness in more detail, you can see that the center size decreases accordingly. However, as the brightness level increases, the capacity to be processed increases, so it is necessary to form a circle at the appropriate brightness level. Therefore, the number of steps may be classified into appropriate steps in order to find the optimum condition and reduce the error range, or adjust the number of steps to an appropriate level according to the needs of the user or the condition of the image due to the weather.

FIG. 13F is a photograph in which brightness levels are set according to a user's need, and FIG. 13G is a photograph in which a boundary of each region of FIG. 13F is displayed.

FIG. 13H is a photograph showing an imaginary circle based on the boundary of each region divided according to the brightness of FIG. 13F. The circle may be implemented as a proximity circle, an inscribed circle, and an circumscribed circle based on the distribution of the same brightness and the like, and may repeatedly implement the shape of each circle and accumulate the processing results to reduce the error. In the case of FIG. 13 (h), an embodiment in which a circle near a circle is gradually found based on a boundary line of each region to form a proximity circle is illustrated.

FIG. 13 (i) shows the error of the user's needs or other factors such as the weather based on the accumulated data to adjust the brightness level to an optimal condition and form the boundary of the region as a perfect circle. One picture. Since the circles spread around the light source in the center, the circle with the highest brightness at the center can be predicted as the center of the sun.

The center of the predicted sun is determined as the position of the sun and the position of the sun is calculated.

Although the sun position calculation method using the first image collection apparatus 20 is not illustrated in the present embodiment, it is possible to calculate the position of the sun by applying various embodiments illustrated in the Applicant's Patent No. 732397.

Next, the sun position calculation process using the second image collecting device 30 will be described.

FIG. 14 is a photograph schematically illustrating a state in which an image formed on the image forming surface 33 of the second image collecting device is photographed. Light incident through the micro holes 31 and the like is formed on the image forming surface 33. If the direct sunlight of the sun does not coincide in the vertical direction with the reference mark M, which is a specific position of the image forming surface 33, it may appear to spread in one direction as shown in Fig. 14A.

When the image formed on the image forming surface 33 is photographed by the second collecting camera 35 and input to the sun position calculating unit 51, the sun position calculating unit 51 classifies the brightness in RGB or gray scale step by step. In addition, the distribution calculates data close to the shape of a circle, derives one or more inscribed circles or circumscribed circles, and determines the portion located at the center as the portion where direct light is incident to track the position of the sun.

Subsequently, the tracking driving signal output unit 53 outputs a signal according to the solar position calculating signal of the solar position calculating unit 51, and operates the tracking driving unit 60 to track the position of the sun. 10) is moved to position light incident on the fine hole 31 to reach the reference mark M (specific region) of the light converging surface.

At this time, when the direct light incident on the fine hole 31 of the second image collecting device 30 reaches the reference mark M, an image as shown in FIG. 14B may be obtained, and such a state may be accurately obtained. The sun is being traced. Later, the sun tracks the same way continuously.

Meanwhile, the sun position calculator 51 uses not only the image information input from the first image collecting device 20 and the second image collecting device 30, but also information previously input to the data storage unit 54. Sun position tracking can be configured to enable. The previously input information is stored according to the date and time to calculate the position of the sun by using the image information input from the first image collecting device 20 and the second image collecting device 30, and the stored data It is possible to use.

In addition, the data storage unit 54 may be used to track the sun position by using astronomical calculations of the sun position data, which are well-known data for tracking the sun position by a formula or a program for calculating the sun position according to seasons, dates, and times. Can be.

In the solar position calculation unit 51 or the central processing unit 52, the solar position calculation information secured through the first image collecting device 20 and the solar position calculation information secured through the second image collecting device 30. In addition, the existing data information or astronomically calculated solar position data, etc. previously inputted to the data storage unit 54 may be used to calculate the sun position and output a driving signal, and combining one or more of the above information. It is preferable to calculate the sun position to output the drive signal.

In an embodiment of the preferred combination, the position tracking box 10 is moved by first calculating the sun position using the image photographed by the first image collecting apparatus 20, and then the second image collecting apparatus 30 is moved. It is possible to drive the position tracking box 10 by calculating the exact position of the sun by secondly calculating the position of the sun using the image taken from.

That is, the sun position calculation using the first image collecting device 20 primarily determines the position of the sun, and moves the position tracking box 10 to track the sun position based on this information. The position tracking box 10 is moved until the direct light incident on the minute hole 31 reaches the reference mark M while calculating the sun position information in the second image collecting device 30, and the minute hole 31 is moved. If the direct sunlight incident on the A reaches the reference mark M correctly, it is determined that the sun position is accurately tracked and continues to track the sun position.

Unlike this, the sun position is first calculated using the image photographed by the first image collecting apparatus 20, and the sun position is secondarily calculated by using the image photographed by the second image collecting apparatus 30. The solar position is calculated by comparing the first and second calculated solar position calculation data, and a tracking driving signal is generated based on the calculated information.

Meanwhile, in the above embodiment, a control method using the first image collecting device 20 and the second image collecting device 30 together has been described, but is not limited thereto, and the first image collecting device 20 is used. Instead, the sun position may be tracked using only the second image collecting device 30.

Since the solar position calculation and tracking method using the second image collecting device 30 has been described above, a repeated description thereof will be omitted.

As described above, the technical ideas described in the embodiments of the present invention can be performed independently of each other, and can be implemented in combination with each other. While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art. It is possible. Accordingly, the technical scope of the present invention should be determined by the appended claims.

1 is a schematic view of a first embodiment showing a solar position tracking device according to the present invention;

2 is a schematic diagram of a second embodiment showing a solar position tracking device according to the present invention;

3 is a schematic view of a third embodiment showing a solar position tracking device according to the present invention;

4 is a schematic view of a fourth embodiment showing a solar position tracking device according to the present invention;

5 is a schematic view of a fifth embodiment showing a solar position tracking device according to the present invention;

6 is a schematic view of a sixth embodiment showing a solar position tracking device according to the present invention;

7 is a schematic view of a seventh embodiment showing a solar position tracking device according to the present invention;

8 is a schematic view of an eighth embodiment showing the solar position tracking device according to the present invention;

9 is a schematic view of a ninth embodiment showing a solar position tracking device according to the present invention;

10 is a schematic view of a tenth embodiment showing a solar position tracking device according to the present invention;

11 is a schematic view of an eleventh embodiment showing a solar position tracking device according to the present invention;

12 is a block diagram showing a control configuration of a solar position tracking device according to the present invention;

13 is a reference diagram showing a photo tracking position of the sun using the first image collecting device in the present invention,

14 is a reference diagram showing a picture of tracking the sun position using the second image collecting device in the present invention.

Claims (23)

A location tracking box driven to enable location tracking of the sun; A first image collection device provided at one side of the location tracking box and disposed to face the sky including the sun in front and to photograph or detect light incident from the sky; A second image collection device provided at the other side of the location tracking box and configured to photograph or detect light incident on the image forming surface through any one of the fine holes or the condenser lens provided in the location tracking box; And a sun position calculating unit configured to calculate a sun position using the images captured by the first image collecting device and the second image collecting device. A location tracking box driven to enable location tracking of sunlight; A second image collection device provided in the location tracking box and configured to photograph or detect light incident through one of the fine holes or the condenser lens provided in the location tracking box and formed on an image forming surface; Sun position tracking device comprising a sun position calculation unit for calculating the sun position by using the image taken by the second image collecting device. The method according to claim 1, The first image collecting device and the second image collecting device, the solar position tracking device, characterized in that arranged in parallel to the position tracking box. The method according to claim 1, The first image collecting device and the second image collecting device are arranged in series in the position tracking box, wherein the first image collecting device is disposed in front of the solar incident direction, and the second image collecting device is the first image. A solar position tracking device, characterized in that disposed behind the light passing through the collector. The method according to claim 1, The first image collecting device, the position tracking device, characterized in that it comprises a filter, a condenser lens, the first collecting camera for photographing the light passing through the condensing lens in the order that light is incident on the position tracking box. The method according to claim 1, The first image collection device is a solar position detection device, the solar position, characterized in that configured to detect the light incident through the fine hole or condensing lens provided in the position tracking box with one or more light receiving sensors Tracking device. The method according to claim 1 or 2, The second image collecting device may include a fine hole or a condenser lens in which the sunlight is incident on the location tracking box and an image of light incident through the micro hole or the condenser lens in the interior of the location tracking box. And an image collecting surface and a second collecting camera provided inside the position tracking box to capture an image formed on the image forming surface. The method of claim 7, The image positioning surface is a solar position tracking device, characterized in that the reference mark is provided to identify the target position for tracking the sun at the position where the direct sunlight of the sun reaches. The method of claim 7, The sun positioning device, characterized in that the imaging surface is provided with one or more light receiving sensors for measuring the amount of sunlight incident. The method of claim 7, Wherein the second image collecting device, when the condenser lens is installed in the position where the sunlight is incident on the position tracking box, the second collecting camera is installed on the rear surface of the condenser lens. The method according to claim 2, The second image collecting device may include a condensing lens installed at a portion where sunlight is incident from the position tracking box, an imaging surface provided inside the position tracking box to form light incident through the condensing lens, and A second collecting camera installed in the location tracking box and photographing an image formed on the image forming surface; And a first image collecting device disposed at a front central portion of the condensing lens to face the sky including the sun in front of the condenser lens to photograph or detect light incident from the sky. The method of claim 11, The second collecting camera is a solar position tracking device, characterized in that installed in the opposite direction to the first image collecting device behind the condenser lens. The method according to claim 1 or 2, The second image collecting device includes a filter plate having a second hole through which a portion of the light passing through the micro holes through which the sunlight is incident in the location tracking box is formed. . 14. The method of claim 13,  The second collecting camera and the filter plate may be arranged to simultaneously capture an image incident through the fine hole and formed on the upper surface of the filter plate and an image formed on the image forming surface through the second hole of the filter plate. Solar location tracking device. 14. The method of claim 13, The second collecting camera is a sun position tracking device, characterized in that the camera for photographing the image formed on the filter plate and the image taken on the image forming surface is separated. The method according to claim 1, The sun position calculating unit divides each image photographed by the first image collecting device or the second image collecting device into steps of brightness, and forms a circle in a distribution of brightness arranged in a wave shape centered on a high brightness point. Sun position tracking device, characterized in that configured to calculate the sun position by deriving at least one inscribed circle, circumscribed circle by calculating close data. The method according to claim 1 or 2, The sun position calculating unit obtains an image formed on a light collecting surface of the second image collecting device, classifies brightness in RGB or gray scale step by step, calculates data whose distribution is close to the shape of a circle, and generates one or more images. Deriving an inscribed circle or circumscribed circle to find the position of the direct light, the sun position tracking device, characterized in that to track the sun position. The method according to claim 1, The sun position tracking device, the sun position tracking device further comprises a tracking drive unit for moving the position tracking box to track the sun position according to the sun position calculation signal of the sun position calculation unit. In the solar position tracking method using the solar position tracking device according to claim 1, A first step of moving a position tracking box by first calculating a sun position by using the image photographed by the first image collecting device; And a second step of moving the position tracking box by calculating the second position of the sun using the image photographed by the second image collecting device after the first step. The method of claim 19, In the first step and the second step, the sun position is calculated by dividing each image taken by the first image collecting device or the second image collecting device in the step of brightness, and arranged in a wave shape around the point of high brightness Sun position tracking method comprising calculating the position of the sun by deriving one or more inscribed and circumscribed circles by calculating data close to the shape of the circle in the distribution of brightness. The method of claim 19, In the second step, the position tracking method for tracking the sun position by moving the position tracking box so that the direct light incident to the inside of the second image collecting device reaches a specific area of the light collecting surface. In the solar position tracking method using the solar position tracking device according to claim 1, the sun position is first calculated using the image photographed by the first image collecting apparatus, and the image photographed by the second image collecting apparatus is used. And calculating the solar position by comparing the solar position calculation data calculated by the first and second solar positions. In the solar position tracking method using the solar position tracking device according to claim 2, By acquiring the image formed on the light collecting surface of the second image collecting device, and dividing the brightness in RGB or gray scale step by step, calculating the data whose distribution is close to the shape of the circle, and derive one or more inscribed or circumscribed circle Find the location of direct sunlight to calculate the sun's position, A method for tracking the location of the sun, comprising: tracking the location of the sun by moving the location tracking box so that direct sunlight reaches a specific area of the light collecting surface.

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