CN106774442A - A kind of intelligent solar tracking system - Google Patents
A kind of intelligent solar tracking system Download PDFInfo
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- CN106774442A CN106774442A CN201510816132.6A CN201510816132A CN106774442A CN 106774442 A CN106774442 A CN 106774442A CN 201510816132 A CN201510816132 A CN 201510816132A CN 106774442 A CN106774442 A CN 106774442A
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- tracking system
- solar tracking
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- tracking
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Abstract
A kind of intelligent solar tracking system is mainly made up of microprocessor control unit, photodetector unit, LCD MODULE, memory cell and keyboard and corresponding peripheral circuit, manual control unit etc..Using based on the embedded microcontroller LPC2290 construction platforms of 32, the tracking mode based on program control tracking, supplemented by photoelectric tracking is used, while have updated the Mathematical Modeling for calculating sun coordinate position, so as to improve tracking accuracy, realize full-automatic tracking.
Description
Technical field
The present invention relates to a kind of solar tracking system, especially a kind of intelligent solar tracking system.
Background technology
With the fast development of social economy, the energy problem that the mankind are faced increasingly protrude, solar energy as a kind of clean energy resource, undoubtedly by the most attention of various countries.The utilization ratio for how improving solar energy turns into study hotspot, and solar tracking is a kind of approach increased operation rate.
The mode of current solar tracking has various, mainly there is photo-electric and mechanical.The former is passive tracking, affected by environment larger, especially when cloudy or cloudy；The latter is active, and its principle is to calculate position of sun, the control stepper motor tracking sun by program；Current most domestic is by the way of the latter.But this tracking mode can have accumulated error, main cause is that the position of sun coordinate model for using is not accurate enough；Due to being opened loop control, the error that mechanical structure deformation and motor are produced in the process of implementation is difficult to eliminate, and the precision of tracking is reduced with the increase of run time.
The content of the invention
The present invention devises a kind of intelligent solar tracking system, improves tracking accuracy, realizes full-automatic tracking.
The technical solution adopted for the present invention to solve the technical problems is：
Intelligent solar tracks of device is mainly made up of microprocessor control unit, photodetector unit, LCD MODULE, memory cell and keyboard and corresponding peripheral circuit, manual control unit etc..
The microprocessor control unit is mainly from LPC2290 microcontrollers, and by external memory interface, memory can be configured into 4 groups, and 16MB, common 64MB are up to per pool-size.
The photodetector unit is made up of a four-quadrant photodiode detector.Four-quadrant photodiode 2CU301 is to manufacture 4 diode monolithics (having crisscross grooves to be spaced between them) on the same chip.4 diodes equivalent to rectangular coordinate system in 4 quadrants, the diode of each quadrant has the output of oneself.When the light spot image being radiated on 4 quadrant photodiodes is located at the center of cross line, the respective output of photodiode for representing 4 quadrants is equal, after operational amplifier is to signal transacting, is output as zero.When hot spot produces any displacement relative to cross dividing line, the output of 4 quadrant photodiodes will be made to change therewith, the output of operational amplifier also produces the positive and negative change on relative displacement direction therewith, may thereby determine that displacement of the object on 2 dimension directions.To reduce the interference of ambient light and improving the susceptibility of detection unit, 4 quadrant photodiode detectors can be placed in an oblong barrel shape, the relatively good material of translucency is used to do a lid for rectangle bucket, to prevent from sending error signal due to shading or covering dust.
The LCD MODULE selects RT12864-M, embeds ST7920 Chinese character point matrix LCDs driving/controller, and it can show letter, numerical chracter, middle character type and self-defined figure.Display random access memory, character-generator, liquid crystal drive and control circuit are all contained in a chip.
The memory module is the FLASH memory that 2MB is extended in system, using SST39VF160.
Solar energy coordinate model uses orientation-following in elevation mode, and at any time, the position of sun of any point is relevant with the geographic latitude of the moment solar declination, solar hour angle and the point on the earth, and specific formula is
Sun altitude
Solar azimuth
In formula：H is sun altitude；Φ is observer place geographic latitude, no matter north and south, is taken without exception just；δ is declination angle；T is solar hour angle.Newest fundamental epoch is employed when solar declination and solar hour angle is calculated, it is contemplated that the influence of the precession of the equinoxes and nutating, the calculation error within 1950-the year two thousand fifty is no more than 0.01 °.
The beneficial effects of the invention are as follows：Intelligent solar tracks of device is using based on 32 embedded microcontroller LPC2290 construction platforms, use the tracking mode based on program control tracking, supplemented by photoelectric tracking, tracking accuracy is improve, full-automatic tracking is realized, for realizing that it is significant that large-scale solar generates electricity.
Brief description of the drawings
The present invention is further described below in conjunction with the accompanying drawings.
Fig. 1 is solar tracking system composition figure.
Fig. 2 is detection cell circuit.
Fig. 3 is photosurface shape.
Fig. 4 is LPC2290 and RT12864-M connection figures.
Fig. 5 is LPC2290 and SST39VF160 connection figures.
Specific embodiment
In Fig. 1, intelligent solar tracks of device is mainly made up of microprocessor control unit, photodetector unit, LCD MODULE, memory cell and keyboard and corresponding peripheral circuit, manual control unit etc..
In fig. 2, the photodetector unit is made up of a four-quadrant photodiode detector.Four-quadrant photodiode 2CU301 is to manufacture 4 diode monolithics (having crisscross grooves to be spaced between them) on the same chip.4 diodes equivalent to rectangular coordinate system in 4 quadrants, the diode of each quadrant has the output of oneself.When the light spot image being radiated on 4 quadrant photodiodes is located at the center of cross line, the respective output of photodiode for representing 4 quadrants is equal, after operational amplifier is to signal transacting, is output as zero.When hot spot produces any displacement relative to cross dividing line, the output of 4 quadrant photodiodes will be made to change therewith, the output of operational amplifier also produces the positive and negative change on relative displacement direction therewith, may thereby determine that displacement of the object on 2 dimension directions.
In figure 3,4 quadrant motion circuitries of hot spot are detected.Wherein VD1, VD2 positive pole are connected on " 2 ", " 3 " end of CU301 respectively, and VD3, VD4 positive pole are connected on " 1 ", " 4 " end of CU301 respectively.So X-axis, the output signal of Y-axis can show that whether glossing up, in center, interrupt signal is sent when controller detects hot spot at the over center position.
In fig. 4, LCD MODULE selects RT12864-M, embeds ST7920 Chinese character point matrix LCDs driving/controller, and it can show letter, numerical chracter, middle character type and self-defined figure.Display random access memory, character-generator, liquid crystal drive and control circuit are all contained in a chip.
In Figure 5, LPC2290 is connected with SST39VF160, and the chip selection signal of SST39VF160 is CS0, is configured to Bank0, and the initial address that it is accessed is the Bank0 memory spaces of 0x80000000, i.e. LPC2290.SST39VF160 is 16 BITBUS network interfaces, and A0 pin are vacant, only uses the address bus A1 ~ A20 of LPC2290.
Claims (6)
1. a kind of intelligent solar tracking system is mainly made up of microprocessor control unit, photodetector unit, LCD MODULE, memory cell and keyboard and corresponding peripheral circuit, manual control unit etc..
2. a kind of intelligent solar tracking system according to claim 1, it is characterized in that the microprocessor control unit is mainly from LPC2290 microcontrollers, and by external memory interface, memory can be configured to 4 groups, 16MB, common 64MB are up to per pool-size.
3. a kind of intelligent solar tracking system according to claim 1, it is characterized in that the photodetector unit is made up of a four-quadrant photodiode detector.
4. a kind of intelligent solar tracking system according to claim 1, it is characterized in that the LCD MODULE selects RT12864-M, embedded ST7920 Chinese character point matrix LCDs driving/controller, it can show letter, numerical chracter, middle character type and self-defined figure, and display random access memory, character-generator, liquid crystal drive and control circuit are all contained in a chip.
5. a kind of intelligent solar tracking system according to claim 1, it is characterized in that the memory module is the FLASH memory that 2MB is extended in system, using SST39VF160.
6. a kind of intelligent solar tracking system according to claim 1, it is characterized in that the solar energy coordinate model uses orientation-following in elevation mode, at any time, the position of sun of any point is relevant with the geographic latitude of the moment solar declination, solar hour angle and the point on the earth, and specific formula is
In formula：H is sun altitude；Φ is observer place geographic latitude, no matter north and south, is taken without exception just；δ is declination angle；T is solar hour angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510816132.6A CN106774442A (en) | 2015-11-23 | 2015-11-23 | A kind of intelligent solar tracking system |
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| CN201510816132.6A CN106774442A (en) | 2015-11-23 | 2015-11-23 | A kind of intelligent solar tracking system |
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| CN106774442A true CN106774442A (en) | 2017-05-31 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107272748A (en) * | 2017-07-17 | 2017-10-20 | 芜湖泰领信息科技有限公司 | The tracking of solar tracking device |
| CN107491096A (en) * | 2017-08-07 | 2017-12-19 | 西安建筑科技大学 | Efficient tracing type photovoltaic generating system and matrix |
-
2015
- 2015-11-23 CN CN201510816132.6A patent/CN106774442A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107272748A (en) * | 2017-07-17 | 2017-10-20 | 芜湖泰领信息科技有限公司 | The tracking of solar tracking device |
| CN107491096A (en) * | 2017-08-07 | 2017-12-19 | 西安建筑科技大学 | Efficient tracing type photovoltaic generating system and matrix |
| CN107491096B (en) * | 2017-08-07 | 2020-08-28 | 西安建筑科技大学 | Efficient tracking type photovoltaic power generation system and matrix |
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Application publication date: 20170531 |