CN202216703U - Sunlight tracking sensor capable of recognizing direct light and diffused light - Google Patents
Sunlight tracking sensor capable of recognizing direct light and diffused light Download PDFInfo
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- CN202216703U CN202216703U CN2011203066572U CN201120306657U CN202216703U CN 202216703 U CN202216703 U CN 202216703U CN 2011203066572 U CN2011203066572 U CN 2011203066572U CN 201120306657 U CN201120306657 U CN 201120306657U CN 202216703 U CN202216703 U CN 202216703U
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Abstract
The utility model provides a sunlight tracking sensor capable of recognizing direct lights and diffused lights and belongs to a field of sunlight tracking devices. The sunlight tracking sensor includes a base plate, an A/D converter and a control chip. An output terminal of the A/D converter connects with the control chip. An output terminal of the control chip connects with an actuating mechanism receiving control signals. It is characterized in that an angle detector and a direct/diffused light detector are arranged on the base plate. Output terminals of the angle detector and the direct/diffused light detector connect with an input terminal of the A/D converter. The angle detector realizes the detection that whether sunlight is direct or not. The direct/diffused light detector realizes the detection that whether the sunlight is direct or diffused. Currents capable of generating linearity are converted to linear voltage under an external lighting condition through the angle detector and the direct/diffused light detector. An AD sampling is realized through the A/D converter. A processing is realized through the control chip. And finally the actuating mechanism controls the action of a cell panel. Therefore, the tracking of the sunlight is finished. The sunlight tracking sensor capable of recognizing the direct lights and the diffused lights in the utility model has characteristics of low cost, simple technique, high reliability, strong anti-interference capability and high tracking precision.
Description
Technical field
The utility model provides a kind of solar tracking device that is applied to solar power plant, especially a kind of sun light tracking sensor of discerning direct light, diffused light.
Background technology
Sun power is one of most important energy in the various regenerative resources, and under world energy consumption megatrend totally, the development of future world must be fired energy war.Development and use sun power becomes a big theme and common action of international community, and national governments all are used as solar energy resources the important content of national sustainable development strategy.Various solar products have obtained number of applications.Especially solar electrical energy generation develops very rapid.Countries in the world are helped the development of sun power clean energy resource one after another.
For solar electrical energy generation, the solar power plant of employing tracker can be improved the generating efficiency of solar cell greatly.Existing tracker has single-shaft tracking system and double-axis tracking system.At present, solar cell still is exactly of whole solar power plant investment maximum, and the tracker that necessarily requires like this to carry cell panel will have enough stability and reliability.The tracker of accuracy requirement to to(for) the panel solar battery is not too high, and common tracker satisfies its tracer request basically, and for gallium arsenide high concentration solar battery, it is harsh to the accuracy requirement of tracker.High concentration solar cell power generation efficient is high than panel solar cell power generation efficient, superior performance, and development is rapid, and using the high concentration solar battery will be the trend of the times of following solar electrical energy generation.
The sun power industry utmost point needs a kind of high reliability, accurate, the technology tracking technique simple, with low cost of high tracking at present.
The utility model content
According to the deficiency of above prior art, the technical matters that the utility model will solve is: the sun light tracking sensor that a kind of reliability is high, tracking is accurate, technology simply can be discerned direct light, diffused light is provided.
The utility model solves the technical scheme that its technical matters adopted: a kind of sun light tracking sensor of discerning direct light, diffused light; Comprise substrate, A/D converter and control chip; The output terminal of A/D converter connects control chip; The output terminal of control chip is accepted the topworks of control signal, it is characterized in that: angle detector and straight/casual detecting device are set on the substrate, and angle detector is connected the input end of A/D converter with the output terminal of straight/casual detecting device.
Angle detector is accomplished the whether detection of direct projection of sunshine; Directly/casual detecting device completion still is the detection of diffusion to the direct projection of light; Under the situation of extraneous illumination, can produce linear electric current through angle detector and the straight/detecting device that overflows; Linear current can convert linear voltage into through circuit, and this linear voltage carries out the AD sampling through A/D converter, handles, judges through control chip then; Actions such as last control executing mechanism control cell panel indexing are accomplished sun light tracking.
Wherein preferred version is:
Described angle detector comprises little shadow shield, first photo-sensitive cell and the big shadow shield that is fixed on the substrate; Big shadow shield is arranged on little shadow shield middle part; Between big shadow shield and the little shadow shield first photo-sensitive cell is set; First photo-sensitive cell is distributed on around the big shadow shield, and the output terminal of first photo-sensitive cell connects the input end of A/D converter.Photo-sensitive cell can adopt light sensitive diode, preferably is provided with mutually at big shadow shield four.When sunshine is the direct projection detecting device; Shadow shield just can not block the irradiation sunshine of two light sensitive diodes up and down; This moment, two light sensitive diodes received same solar light irradiation; The voltage signal of light sensitive diode compared these signals about control chip was sampled respectively, and do not have the voltage difference control chip not have output drive signal this moment; When the light sensitive diode of sun deflection upper end; Sunshine will be blocked by shadow shield; Thereby cause lower end light sensitive diode part by solar light irradiation or all not by solar light irradiation; The voltage signal of control chip this moment light sensitive diode about sampling respectively voltage difference will occur through comparing, thus control chip output corresponding driving signal.
The height of described little shadow shield is greater than the height of first photo-sensitive cell, and is lower than the height of big shadow shield.The angle of operate as normal is less than 180 degree, but it has increased little shadow shield and can block the radiation from the outside, makes angle detector have good radiation resistance like this.
Described straight/detecting device that overflows comprises shadow shield, second photo-sensitive cell and the 3rd photo-sensitive cell that is fixed on the substrate, second photo-sensitive cell is arranged on around the substrate, and is not blocked by shadow shield, the 3rd photo-sensitive cell is arranged under the shadow shield.Under direct light (hard light) irradiation, object can produce shade, and in this case, and the light and shade contrast of dash area and non-shaded portion is than strong many of the projection under the diffused light situation.Therefore sunshine straight/overflow in the detector functions; Do not having under the situation of direct light, the voltage basically identical that second photo-sensitive cell and the sampling of the 3rd photo-sensitive cell obtain is set the direct light measuring ability; Have only when detecting direct light and exist, open direct light and follow the tracks of.When detecting direct light and do not exist, will close direct light and follow the tracks of.
The beneficial effect that sun light tracking sensor had that the utility model can be discerned direct light, diffused light is: through angle detector and straight/casual detecting device are set on substrate; Angle detector is connected the input end of A/D converter with the output terminal of straight/casual detecting device; On the basis of original tracker; Increase the difference pick-up unit of direct projection and diffusion, angle detector is accomplished the whether detection of direct projection of sunshine, straight/and the detecting device completion of overflowing still is the detection of diffusion to the direct projection of light; Under the situation of extraneous illumination, can produce linear electric current through angle detector and the straight/detecting device that overflows; Linear current can convert linear voltage into through circuit, and this linear voltage carries out the AD sampling through A/D converter, handles, judges through control chip then; Actions such as last control executing mechanism control cell panel indexing are accomplished sun light tracking.
The utility model production cost is low, production technology is simple, reliability is high, strong anti-interference performance, tracking accuracy high.
Description of drawings
Fig. 1 is the electrical principle block scheme of the utility model;
Fig. 2 is the structural representation of the angle detector of the utility model;
Fig. 3 is the A-A view of Fig. 2;
Fig. 4 is the structural representation of the straight/casual detecting device of the utility model;
Wherein: 1, little shadow shield 2, photo-sensitive cell 3, big shadow shield 4,5, substrate 6, shadow shield 7, shade 8,9, photo-sensitive cell.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done and to further describe:
As shown in Figure 1; The output terminal of A/D converter connects control chip; The output terminal of control chip is accepted the topworks of control signal; It is characterized in that: angle detector and straight/casual detecting device are set on the substrate, and angle detector is connected the input end of A/D converter with the output terminal of straight/casual detecting device.
Two detecting devices both can adopt same substrate, also can be arranged at different positions by different substrates.Angle detector is accomplished the whether detection of direct projection of sunshine; Directly/casual detecting device completion still is the detection of diffusion to the direct projection of light; Under the situation of extraneous illumination, can produce linear electric current through angle detector and the straight/detecting device that overflows; Linear current can convert linear voltage into through circuit, and this linear voltage carries out the AD sampling through A/D converter, handles, judges through control chip then; Actions such as last control executing mechanism control cell panel indexing are accomplished sun light tracking.
Like Fig. 2, shown in Figure 3; Angle detector comprises little shadow shield 1, photo-sensitive cell 2 and the big shadow shield 3 that is fixed on the substrate 4; Big shadow shield 3 is arranged on little shadow shield 1 middle part; Between big shadow shield 3 and the little shadow shield 1 photo-sensitive cell 2 is set, photo-sensitive cell 2 is distributed on around the big shadow shield 3, and the output terminal of photo-sensitive cell 2 connects the input end of A/D converter.
Photo-sensitive cell 2 can adopt solar cell, light sensitive diode, photoresistance etc., be provided with mutually at four of big shadow shield 3, promptly big shadow shield all around four over against the position.The shape of big shadow shield 3 and little shadow shield 1 can be rectangle, circle etc., preferred rectangle.
With the light sensitive diode is example; When sunshine is the direct projection detecting device; Shadow shield 3 just can not block the irradiation sunshine of two light sensitive diodes up and down greatly, and this moment, two light sensitive diodes received same solar light irradiation, the voltage signal of light sensitive diode about control chip is sampled respectively; These signals are compared, and do not have the voltage difference control chip not have output drive signal this moment; When the light sensitive diode of sun deflection upper end; Sunshine will be blocked by shadow shield; Thereby cause lower end light sensitive diode part by solar light irradiation or all not by solar light irradiation; The voltage signal of control chip this moment light sensitive diode about sampling respectively voltage difference will occur through comparing, thus control chip output corresponding driving signal.
The height of little shadow shield 1 is greater than the height of photo-sensitive cell 2, and is lower than the height of big shadow shield 3.The angle of operate as normal is less than 180 degree, but it has increased little shadow shield 1 and can block the radiation from the outside, makes angle detector have good radiation resistance like this.
As shown in Figure 4, the straight/detecting device that overflows comprises shadow shield 6, photo-sensitive cell 8 and the photo-sensitive cell 9 that is fixed on the substrate 5, and photo-sensitive cell 8 is arranged on around the substrate 5, and is not blocked by shadow shield 6, and photo-sensitive cell 9 is arranged under the shadow shield 6.
Under direct light (hard light) irradiation, object can produce shade 7, and in this case, and the light and shade contrast of dash area and non-shaded portion is than strong many of the projection under the diffused light situation.Therefore sunshine straight/overflow in the detector functions, do not having under the situation of direct light, the photo-sensitive cell 8 voltage basically identical that 9 samplings obtain with photo-sensitive cell is set the direct light measuring ability, has only when detecting direct light and exist, and opens the direct light tracking.When detecting direct light and do not exist, will close direct light and follow the tracks of.
A/D converter in the utility model, control chip and topworks are common prior art, its setting and be used for industry technician and grasp.
Principle of work and use:
Angle detector is accomplished the whether detection of direct projection of sunshine; In the time of sunshine; Shadow shield 3 just can not block the irradiation sunshine of two light sensitive diodes up and down greatly, and this moment, two light sensitive diodes received same solar light irradiation, the voltage signal of light sensitive diode about control chip is sampled respectively; These signals are compared, and do not have the voltage difference control chip not have output drive signal this moment; When the light sensitive diode of sun deflection upper end; Sunshine will be blocked by shadow shield; Thereby cause lower end light sensitive diode part by solar light irradiation or all not by solar light irradiation; The voltage signal of control chip this moment light sensitive diode about sampling respectively voltage difference will occur through comparing, thus control chip output corresponding driving signal.
Directly/casual detecting device completion still is the detection of diffusion to the direct projection of light; Do not having under the situation of direct light, the photo-sensitive cell 8 voltage basically identical that 9 samplings obtain with photo-sensitive cell is set the direct light measuring ability; Have only when detecting direct light and exist, open direct light and follow the tracks of.When detecting direct light and do not exist, will close direct light and follow the tracks of.
Angle detector produces linear electric current with the straight/detecting device that overflows; Linear current can convert linear voltage into through circuit; This linear voltage carries out the AD sampling through A/D converter; Handle, judge that actions such as last control executing mechanism control cell panel indexing are accomplished sun light tracking then through control chip.
Claims (4)
1. the sun light tracking sensor that can discern direct light, diffused light; Comprise substrate, A/D converter and control chip; The output terminal of A/D converter connects control chip; The output terminal of control chip is accepted the topworks of control signal, it is characterized in that: angle detector and straight/casual detecting device are set on the substrate, and angle detector is connected the input end of A/D converter with the output terminal of straight/casual detecting device.
2. the sun light tracking sensor of discerning direct light, diffused light according to claim 1; It is characterized in that: described angle detector comprises little shadow shield, first photo-sensitive cell and the big shadow shield that is fixed on the substrate; Big shadow shield is arranged on little shadow shield middle part; Between big shadow shield and the little shadow shield first photo-sensitive cell is set, first photo-sensitive cell is distributed on around the big shadow shield, and the output terminal of first photo-sensitive cell connects the input end of A/D converter.
3. the sun light tracking sensor of discerning direct light, diffused light according to claim 2 is characterized in that: the height of described little shadow shield is greater than the height of first photo-sensitive cell, and is lower than the height of big shadow shield.
4. the sun light tracking sensor of discerning direct light, diffused light according to claim 1; It is characterized in that: described straight/detecting device that overflows comprises shadow shield, second photo-sensitive cell and the 3rd photo-sensitive cell that is fixed on the substrate; Second photo-sensitive cell is arranged on around the substrate; And do not blocked by shadow shield, the 3rd photo-sensitive cell is arranged under the shadow shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203066572U CN202216703U (en) | 2011-08-22 | 2011-08-22 | Sunlight tracking sensor capable of recognizing direct light and diffused light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203066572U CN202216703U (en) | 2011-08-22 | 2011-08-22 | Sunlight tracking sensor capable of recognizing direct light and diffused light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202216703U true CN202216703U (en) | 2012-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203066572U Expired - Fee Related CN202216703U (en) | 2011-08-22 | 2011-08-22 | Sunlight tracking sensor capable of recognizing direct light and diffused light |
Country Status (1)
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| CN (1) | CN202216703U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104820437A (en) * | 2015-03-24 | 2015-08-05 | 常州工学院 | Sunlight tracking sensor |
| CN105929857A (en) * | 2016-05-31 | 2016-09-07 | 南昌理工学院 | Solar panoramic automatic tracking system |
| CN107664461A (en) * | 2017-09-28 | 2018-02-06 | 河南城建学院 | Air-conditioner outdoor unit purging system |
-
2011
- 2011-08-22 CN CN2011203066572U patent/CN202216703U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104820437A (en) * | 2015-03-24 | 2015-08-05 | 常州工学院 | Sunlight tracking sensor |
| CN104820437B (en) * | 2015-03-24 | 2017-11-28 | 常州工学院 | A kind of sunlight tracking sensor |
| CN105929857A (en) * | 2016-05-31 | 2016-09-07 | 南昌理工学院 | Solar panoramic automatic tracking system |
| CN107664461A (en) * | 2017-09-28 | 2018-02-06 | 河南城建学院 | Air-conditioner outdoor unit purging system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20120822 |