CN104331089A - Household photovoltaic cell automatic tracking system and method based on image analysis - Google Patents
Household photovoltaic cell automatic tracking system and method based on image analysis Download PDFInfo
- Publication number
- CN104331089A CN104331089A CN201410571343.3A CN201410571343A CN104331089A CN 104331089 A CN104331089 A CN 104331089A CN 201410571343 A CN201410571343 A CN 201410571343A CN 104331089 A CN104331089 A CN 104331089A
- Authority
- CN
- China
- Prior art keywords
- image
- tracking system
- automatic tracking
- photovoltaic cell
- shadow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a household photovoltaic cell automatic tracking system and method based on image analysis. The system comprises a bottom plate, a light-shading plate arranged above the bottom plate, an image acquisition device, an image analysis device and a photovoltaic plate, wherein the light-shading plate is for generating a shadow image on the bottom plate when sunlight shines on the light-shading plate; the image acquisition device is for collecting the shadow image and outputting the shadow image to the image analysis device; and the image analysis device is for carrying out analysis processing on the shadow image to obtain elevation angle and orientation of the sun, and adjusting and controlling the rotation position of the photovoltaic plate based on the elevation angle and orientation.
Description
Technical field
The present invention relates to the family photovoltaic cell automatic tracking system based on graphical analysis and method.
Background technology
In recent years, along with the development of social low-carbon economy, society is rising situation to the demand of renewable energy power generation, and photovoltaic generation has the characteristics such as clean, renewable, use is inexhausted, reliable and stable, and development more and more comes into one's own.
In order to improve the utilization ratio of photovoltaic cell, the absorption efficiency how improving sunshine becomes technology emphasis.Because sunray causes the angle of incident ray different along with time variations, and then sunlight is caused to incide the irradiance difference of photovoltaic polar plate.As everyone knows, sunray vertical irradiation is only had farthest could to improve the irradiance of pole plate absorption under the same conditions on photovoltaic module.Photovoltaic module many employings fixed installation mode of present use, farthest can not absorb sun power.Designing the autotracker changing photovoltaic module sense of rotation according to the change of sunray incident angle, is the important technical improving photovoltaic cell capable of generating power efficiency.So, how to determine the incident direction of light, and then the anglec of rotation of adjustment photovoltaic module becomes the problem first needing to solve.
Existing photovoltaic module automatic tracking system has two kinds, and one is clock tracing method, and two is sensor tracings.Clock tracing method and sensor tracing to change in time according to position set-point or lighting angle is changed to the position control system of foundation.Clock tracing method is the time according to photovoltaic generating system geographic location, calculates elevation angle and the position angle of the sun, thus determines that drive system should the direction of action and distance by current location.Sensor tracing the simulating signal that the light activated element of diverse location produces under sunlight irradiates is sent into control after conditioning be converted into digital quantity, by comparing, analysis and decision, control driving mechanism action and make the sensitive surface of photovoltaic cell remain vertical with incident sunlight.Clock tracing method must have clock signal accurately; The sensor that sensor tracing mainly utilizes is photoresistance, photoelectric cell or phototransistor.
Existing clock tracing method must rely on accurate clock signal as control signal, easily produces cumulative errors; Existing sensor tracking many employings photoresistance, photoelectric cell and phototransistor are as photosensitive sensor, light activated element is needed to be connected with modulating device with amplification, and after amplification with modulating device, also need connection control device to regulate and control, make structure relative complex, and the area of light activated element reflection illumination is less, easily be interfered and form error, and this kind of method can only calculate the general orientation of the sun, instead of accurate angle.
Summary of the invention
For the problems referred to above, the invention provides the family photovoltaic cell automatic tracking system based on graphical analysis that a kind of energy consumption is low, degree of accuracy is high.
For achieving the above object, the present invention is based on the family photovoltaic cell automatic tracking system of graphical analysis, described system comprises base plate, be arranged on shadow shield, image collecting device, image analysis apparatus and photovoltaic panel above described base plate, wherein,
Described shadow shield, sunlight is radiated on described shadow shield, and described base plate forms shadow image;
Described image collecting device, gathers described shadow image, exports described shadow image to described image analysis apparatus;
Described image analysis apparatus, obtains the elevation angle and the orientation of the sun, controls the position of rotation of described photovoltaic panel based on the described elevation angle and orientation adjustment to described shadow image analyzing and processing.
Further, also comprise column, described column is connected on described base plate, and described column is for supporting described sunshading board.
Further, described sunshading board is rectangular slab.
Further, described base plate is provided with grid spaces.
Further, described image collector is set to video camera.
Further, image analysis apparatus at least comprises graphics processing unit and image analyzing unit, described shadow image is carried out sharpening process by wherein said graphics processing unit, and described image analyzing unit analyzes the position of described shadow image, the orientation of the size and dimension calculating sun.
For achieving the above object, the present invention is based on the family photovoltaic cell automatic tracking system of graphical analysis, described method comprises, and is shined upon the shadow image formed on sunshading board by analyzing and processing, obtains the concrete orientation of the sun, controls the position of rotation of photovoltaic panel.
Further, described method specifically comprises:
Gather and shine upon the shadow image formed on sunshading board;
Through binary conversion treatment, bianry image is obtained to described shadow image.According to the bianry image of reflection shadow shield dash area, the orientation of sunlight can be judged by the center of gravity of computational shadowgraph part;
By the area of computational shadowgraph part and the angle of the edge shape accurate Calculation sun;
Orientation based on the described sun controls the rotation of photovoltaic panel.
Beneficial effect:
The present invention adopts the daylight position detecting system based on graphical analysis, is obtained the image information of shield by camera, by the analysis obtaining image, calculates the elevation angle and the position angle of the sun, determines the position that photovoltaic cell should rotate.
The present invention, not reducing on the basis of precision, improves accuracy further, and reduces costs greatly, simplifies structure, and the making of package unit is simplified.Adopt the daylight position detecting system based on graphical analysis, obtained the image information of shield by camera, can be arranged separately on photovoltaic module, also can be made into integral structure with existing image monitoring system.Energy consumption aspect, only needs to provide small-power power, and its tracking means energy consumption is far smaller than the electric energy increased by device.
Accompanying drawing explanation
Fig. 1 is the family photovoltaic cell automatic tracking system perspective view that the present invention is based on graphical analysis.
Fig. 2 is the family photovoltaic cell automatic tracking system front view that the present invention is based on graphical analysis;
Fig. 3 is the left view of the family photovoltaic cell automatic tracking system Fig. 2 that the present invention is based on graphical analysis;
Fig. 4 is the vertical view of the family photovoltaic cell automatic tracking system Fig. 2 that the present invention is based on graphical analysis.
Embodiment
Below in conjunction with Figure of description, the present invention will be further described.
As shown in Figures 1 to 4, the present invention is based on the family photovoltaic cell automatic tracking system of graphical analysis, described system comprises base plate 1, be arranged on shadow shield 3, image collecting device 4, image analysis apparatus and photovoltaic panel above described base plate, also comprise column 2, described column is connected on described base plate, and described column is for supporting described sunshading board.
Described shadow shield, sunlight is radiated on described shadow shield, and described base plate forms shadow image;
Described image collecting device, gathers described shadow image, exports described shadow image to described image analysis apparatus;
Described image analysis apparatus, obtains the elevation angle and the orientation of the sun, controls the position of rotation of described photovoltaic panel based on the described elevation angle and orientation adjustment to described shadow image analyzing and processing.
Further, conveniently shadow image described in analyzing and processing, described sunshading board is rectangular slab.Further, described base plate is provided with grid spaces.Further, described image collector is set to video camera.
The process that the present invention is based on the family photovoltaic cell automatic tracking system work of graphical analysis is:
When light is radiated on this device, shadow shield 3 can form shade on base plate 1, and the position of this shade and size depend on the position of the sun.Along with the change of incident ray, the shadow positions that base plate is formed, size and shape are different, and correspondence covers grid spaces different on base plate.
Camera captures the image information comprising shade, can be covered and the size shape information of shade according to which grid by shade, by analyzing the feature of flutterring the image caught, judges the direction of light, the sense of rotation of control photovoltaic polar plate.
The process of graphical analysis: after what camera obtained comprise the image of sunlight shade, obtain bianry image through binary conversion treatment.According to the bianry image of reflection shadow shield dash area, the general orientation of sunlight can be judged by the center of gravity of computational shadowgraph part; Can the angle of the accurate Calculation sun by the area of computational shadowgraph part and edge shape.
System mounting location: this device can be arranged on single photovoltaic module, needs on photovoltaic module, install small-sized image pickup head; Also can with existing video monitoring system integrative installation technology, adopt screen supervisory system to obtain to be installed on the sun visor device image information on independent support (region that distance camera position is nearer), daylight can be completed follow the tracks of under the condition not increasing cost.
The purpose of design of automatic tracking system be to control cell panel towards, make cell panel follow the tracks of the sun, what keep with incident sunlight in light application time as far as possible is vertical, and then minimizing incident angle is on the impact of irradiance, increases substantially the efficiency of photovoltaic generation.When other conditions keep identical, keep cell panel vertical with incident ray, radiancy will reach maximum.
In cost of manufacture: because present camera price is very low, and can combine with existing video monitoring system, the basis not increasing image capture device realizes automatic sun tracking, and required cost is low, structure is simple, easy to loading and unloading.
Energy consumption aspect: running this device only needs to provide small-power power, and its tracking means energy consumption is far smaller than the electric energy increased by device.
Clock control mode is compared, and the method can avoid clock control mode to the strict dependence of time, avoids error accumulation; Compare with the sensor control mode such as existing use photoresistance, anti-interference can be improved according to wider dash area image information to system, and more accurately can calculate the orientation of the sun.
The photovoltaic module automatic tracking system that the present invention is based on graphical analysis can improve position of sun and detect degree of accuracy.Combinationally use with existing video monitoring system and there is the effect that cost is low, precision is high.
The present invention be should be understood that; above-described embodiment; further detailed description has been carried out to object of the present invention, technical scheme and beneficial effect; these are only embodiments of the invention; be not intended to limit the present invention, every within spiritual principles of the present invention, done any amendment, equivalent replacement, improvement etc.; all should be included within protection scope of the present invention, the protection domain that protection scope of the present invention should define with claim is as the criterion.
Claims (8)
1. based on a family photovoltaic cell automatic tracking system for graphical analysis, it is characterized in that: described system comprises base plate, be arranged on shadow shield, image collecting device, image analysis apparatus and photovoltaic panel above described base plate, wherein,
Described shadow shield, sunlight is radiated on described shadow shield, and described base plate forms shadow image;
Described image collecting device, gathers described shadow image, exports described shadow image to described image analysis apparatus;
Described image analysis apparatus, obtains the elevation angle and the orientation of the sun, controls the position of rotation of described photovoltaic panel based on the described elevation angle and orientation adjustment to described shadow image analyzing and processing.
2. the family photovoltaic cell automatic tracking system based on graphical analysis according to claim 1, it is characterized in that: also comprise column, described column is connected on described base plate, and described column is for supporting described sunshading board.
3. the family photovoltaic cell automatic tracking system based on graphical analysis according to claim 1, is characterized in that: described sunshading board is rectangular slab.
4. the family photovoltaic cell automatic tracking system based on graphical analysis according to claim 1, is characterized in that: described base plate is provided with grid spaces.
5. the family photovoltaic cell automatic tracking system based on graphical analysis according to claim 1, is characterized in that: described image collector is set to video camera.
6. the family photovoltaic cell automatic tracking system based on graphical analysis according to claim 1, it is characterized in that: image analysis apparatus at least comprises graphics processing unit and image analyzing unit, described shadow image is carried out sharpening process by wherein said graphics processing unit, and described image analyzing unit analyzes the position of described shadow image, the orientation of the size and dimension calculating sun.
7. based on a family photovoltaic cell automatic tracking system for graphical analysis, it is characterized in that: described method comprises, shined upon the shadow image formed on sunshading board by analyzing and processing, obtain the concrete orientation of the sun, control the position of rotation of photovoltaic panel.
8. the family photovoltaic cell automatic tracking system based on graphical analysis according to claim 7, is characterized in that: described method specifically comprises:
Gather and shine upon the shadow image formed on sunshading board;
Through binary conversion treatment, bianry image is obtained to described shadow image.According to the bianry image of reflection shadow shield dash area, the orientation of sunlight can be judged by the center of gravity of computational shadowgraph part;
By the area of computational shadowgraph part and the angle of the edge shape accurate Calculation sun;
Orientation based on the described sun controls the rotation of photovoltaic panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410571343.3A CN104331089A (en) | 2014-10-23 | 2014-10-23 | Household photovoltaic cell automatic tracking system and method based on image analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410571343.3A CN104331089A (en) | 2014-10-23 | 2014-10-23 | Household photovoltaic cell automatic tracking system and method based on image analysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104331089A true CN104331089A (en) | 2015-02-04 |
Family
ID=52405835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410571343.3A Pending CN104331089A (en) | 2014-10-23 | 2014-10-23 | Household photovoltaic cell automatic tracking system and method based on image analysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104331089A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107957736A (en) * | 2017-11-27 | 2018-04-24 | 天津创来智能光伏科技有限公司 | A kind of position of sun follow-up mechanism of low-cost and high-precision |
| CN108540063A (en) * | 2018-03-30 | 2018-09-14 | 湖南铁路科技职业技术学院 | A kind of photovoltaic board mount of adjustable angle |
| CN110910316A (en) * | 2019-05-14 | 2020-03-24 | 程爱军 | Solar equipment control platform |
| CN111612071A (en) * | 2020-05-21 | 2020-09-01 | 北京华睿盛德科技有限公司 | Deep learning method for generating depth map from shadow map of curved surface part |
| CN112104312A (en) * | 2020-08-20 | 2020-12-18 | 华翔翔能科技股份有限公司 | Traceable bracket of roof photovoltaic system |
| CN114442678A (en) * | 2021-12-28 | 2022-05-06 | 浙江朝泰科技有限公司 | Sun tracking device and method for photovoltaic module |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101588147A (en) * | 2008-05-20 | 2009-11-25 | 鸿富锦精密工业（深圳）有限公司 | Solar energy collecting system |
| CN101930237A (en) * | 2010-08-24 | 2010-12-29 | 薛恩达 | Automatic sun tracking method and device |
| US20120187891A1 (en) * | 2009-09-30 | 2012-07-26 | Mitsubishi Electric Corporation | Positioning control device |
| CN102841611A (en) * | 2012-08-02 | 2012-12-26 | 中国电力科学研究院 | Solar module automatic tracking method based on photovoltaic power station monitoring system and system therein |
| CN103217141A (en) * | 2013-03-18 | 2013-07-24 | 大连宏海新能源发展有限公司 | Sun position detection device and method |
| CN103234510A (en) * | 2013-04-11 | 2013-08-07 | 南京理工大学 | Sun tracking and positioning detection apparatus |
| CN103294069A (en) * | 2013-06-14 | 2013-09-11 | 盐城工学院 | Solar battery tracking detection and control device |
| CN103777643A (en) * | 2012-10-23 | 2014-05-07 | 北京网动网络科技股份有限公司 | Automatic camera tracking system based on image positioning and tracking method |
| CN203882200U (en) * | 2014-05-29 | 2014-10-15 | 深圳长城开发科技股份有限公司 | Laser reflection measurement-based automatic collimation system and automatic alignment platform |
-
2014
- 2014-10-23 CN CN201410571343.3A patent/CN104331089A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101588147A (en) * | 2008-05-20 | 2009-11-25 | 鸿富锦精密工业（深圳）有限公司 | Solar energy collecting system |
| US20120187891A1 (en) * | 2009-09-30 | 2012-07-26 | Mitsubishi Electric Corporation | Positioning control device |
| CN101930237A (en) * | 2010-08-24 | 2010-12-29 | 薛恩达 | Automatic sun tracking method and device |
| CN102841611A (en) * | 2012-08-02 | 2012-12-26 | 中国电力科学研究院 | Solar module automatic tracking method based on photovoltaic power station monitoring system and system therein |
| CN103777643A (en) * | 2012-10-23 | 2014-05-07 | 北京网动网络科技股份有限公司 | Automatic camera tracking system based on image positioning and tracking method |
| CN103217141A (en) * | 2013-03-18 | 2013-07-24 | 大连宏海新能源发展有限公司 | Sun position detection device and method |
| CN103234510A (en) * | 2013-04-11 | 2013-08-07 | 南京理工大学 | Sun tracking and positioning detection apparatus |
| CN103294069A (en) * | 2013-06-14 | 2013-09-11 | 盐城工学院 | Solar battery tracking detection and control device |
| CN203882200U (en) * | 2014-05-29 | 2014-10-15 | 深圳长城开发科技股份有限公司 | Laser reflection measurement-based automatic collimation system and automatic alignment platform |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107957736A (en) * | 2017-11-27 | 2018-04-24 | 天津创来智能光伏科技有限公司 | A kind of position of sun follow-up mechanism of low-cost and high-precision |
| CN108540063A (en) * | 2018-03-30 | 2018-09-14 | 湖南铁路科技职业技术学院 | A kind of photovoltaic board mount of adjustable angle |
| CN110910316A (en) * | 2019-05-14 | 2020-03-24 | 程爱军 | Solar equipment control platform |
| CN111612071A (en) * | 2020-05-21 | 2020-09-01 | 北京华睿盛德科技有限公司 | Deep learning method for generating depth map from shadow map of curved surface part |
| CN111612071B (en) * | 2020-05-21 | 2024-02-02 | 北京华睿盛德科技有限公司 | Deep learning method for generating depth map from curved surface part shadow map |
| CN112104312A (en) * | 2020-08-20 | 2020-12-18 | 华翔翔能科技股份有限公司 | Traceable bracket of roof photovoltaic system |
| CN114442678A (en) * | 2021-12-28 | 2022-05-06 | 浙江朝泰科技有限公司 | Sun tracking device and method for photovoltaic module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104331089A (en) | Household photovoltaic cell automatic tracking system and method based on image analysis | |
| CN201488725U (en) | Sun azimuth detecting device for automatically tracking sun | |
| CN103744437B (en) | The tracking of solar automatic tracking system | |
| CN204290840U (en) | A kind of device from motion tracking sunlight | |
| WO2013170563A1 (en) | Real-time solar energy tracking system | |
| CN203689162U (en) | Solar automatic tracking device | |
| KR101802370B1 (en) | Apparatus for solar energy generation | |
| CN103076814A (en) | Solar automatic tracking system | |
| US9070806B2 (en) | Self-powered solar tracker | |
| CN105043537B (en) | The flat-top triangular pyramid sensor of family photovoltaic component tracks | |
| KR101277764B1 (en) | Sensor for tracking solar position, photovoltaic power generating apparatus and method for tracking solar position | |
| CN105843264A (en) | Photoelectric induction tracking device for movement tracks of the sun | |
| CN104503475A (en) | Sensor applicable to automatic solar energy tracking device | |
| CN103592957B (en) | Solar cell panel array and automatic light following system and method thereof | |
| CN202013515U (en) | Sunlight automatic tracking device | |
| CN102707731A (en) | Solar tracker | |
| CN205193600U (en) | Three -point fix solar energy automatic tracking apparatus and control system thereof | |
| JP3128040U (en) | Light source tracking device | |
| CN101922927A (en) | Dual-coordinate high-precision sun tracing sensor | |
| CN205158145U (en) | Track beam condensing unit of sunlight | |
| CN114489155A (en) | Novel solar street lamp light following device | |
| CN103488185B (en) | Sun tracker based on The Cloud Terrace | |
| CN204788345U (en) | Wireless digital sun is trailed position and is detected head | |
| CN207319075U (en) | A kind of full automatic solar tracks of device based on image detection | |
| CN203397222U (en) | Photovoltaic tracking automatic control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150204 |