CN202351713U - Four-quadrant coarse adjustment sunlight sensor - Google Patents
Four-quadrant coarse adjustment sunlight sensor Download PDFInfo
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- CN202351713U CN202351713U CN2011204256061U CN201120425606U CN202351713U CN 202351713 U CN202351713 U CN 202351713U CN 2011204256061 U CN2011204256061 U CN 2011204256061U CN 201120425606 U CN201120425606 U CN 201120425606U CN 202351713 U CN202351713 U CN 202351713U
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Abstract
The utility model relates to a four-quadrant coarse adjustment sunlight sensor comprising a coarse adjustment crisscross zigzag slot strip and a black visor; a photosensitive resistance element with good linearity is arranged on each side of the coarse adjustment crisscross zigzag slot strip; a sensor detector control circuit module is adopted to amplify and compare signals acquired by the photosensitive elements of the four-quadrant coarse adjustment sunlight sensor; the sensor detection control circuit module comprises a signal amplifying circuit and a precise active absolute value circuit; and the four-quadrant coarse adjustment sunlight sensor determines the approximate direction of the sunlight, so that the realization of a high-precision solar tracking system is ensured, and a solar panel obtains the maximum light intensity.
Description
Technical field
The utility model relates in the Application of Solar Energy from the device of motion tracking sunshine, especially relates to four-quadrant coarse adjustment sunlight sensor.
Background technology
Tap a new source of energy with regenerative resource be the common issue that the whole world faces; Solar energy development has become one of fastest technology of global evolution with utilization; In new forms of energy, photovoltaic generation is the renewable energy technologies of tool sustainable development desired characteristics, receives globally generally paying attention to.The generated energy of solar cell array is relevant with angle of incidence of sunlight, and generated energy is maximum when sunray is vertical with the solar cell array plane.But, the sun moves owing to changing in time; Therefore fixedly the generating efficiency of square formation well below the solar battery of being with tracker; Add that solar cell costs an arm and a leg, cause cost for solar power generation high, restricted the development of solar energy industry greatly.Before the high-efficiency photovoltaic battery material does not occur; One of effective way that reduces the solar cell cost of electricity-generating is the sunlight automatic tracking system that development has use value; And the sunlight aspect sensor that obtains high precision sunlight directional information accurately is this system's essential important component; Computer settings, astronomical time and several kinds of main modes of sunlight signal acquiring are arranged usually in the world; And for High Precision Automatic tracker, be optimal selection with direct collection sunshine signal still.But, because automatic tracking system and the residing outdoor bad working environment of sensor will guarantee under low-cost condition that the high precision of its work and reliability then are very difficult.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the purpose of the utility model is to provide four-quadrant coarse adjustment sunlight sensor, can the real-time follow-up sunshine; This sensor is easy to use; Life-span is long, and tracking accuracy height and cost performance are high simultaneously, and can work steady in a long-term in rugged surroundings.
In order to achieve the above object, the technical scheme that the utility model adopted is:
Four-quadrant coarse adjustment sunlight sensor is installed on the optically focused platform, adopts the sensor control circuit module that the signal that the light activated element of four-quadrant coarse adjustment sunlight sensor collects is amplified and comparison process;
Four-quadrant coarse adjustment sunlight sensor; Include ball cover 101, ball cover 101 is installed on the base plate 102, and the central part of base plate 102 is equipped with coarse adjustment " ten " font zigzag draw-in groove bar 103; Coarse adjustment " ten " font zigzag draw-in groove bar 103 is divided into four parts of all directions equal length by black shadow shield 104; Black shadow shield 104 is processed and vertically is installed on the base plate 102 by four identical black acrylic boards of area, and black shadow shield 104 is fixedly set on the base plate 102, and the shading face of black shadow shield 104 is parallel to the southeast respectively; Southwest; The northwest, the northeast four direction promptly becomes 45 ° of angles with coarse adjustment " ten " font zigzag draw-in groove bar 103 place directions; On every limit of coarse adjustment " ten " font zigzag draw-in groove bar 103 photoresistance cell is installed respectively; The i.e. first light activated element S1, the second light activated element S2, the 3rd light activated element S3 and the 4th light activated element S4, and the first light activated element S1, the second light activated element S2, the 3rd light activated element S3 are consistent with the performance parameter of the 4th light activated element S4, said sensor control circuit module is used for the signal that light activated element to four-quadrant coarse adjustment sunlight sensor collects and amplifies and comparison process;
Said sensor control circuit module is made up of said input signal V1 signal amplification circuit and accurate active absolute value circuit; Input signal V2 is provided by one group of light activated element group, input signal V1, and input signal V2 obtains exporting signal V3 after three dual operational amplifier LM741 and three potentiometers processing; Output signal V3 is through amplifier U358/1A; U358/1B obtains exporting signal V4 after handling, and said output signal V4 passes to signal the input end of single-chip microcomputer.
Said first light activated element S1 and the 3rd light activated element S3, the second light activated element S2 and the 4th light activated element S4 constitute one group of light activated element group respectively.
The light activated element of installing on the sensor can become approximately linear to change for its resistance of different illumination intensity in certain limit; The analog quantity that the light activated element S1-S4 of sensor produces is passed through signal amplification circuit; Filtering circuit, the processing of comparator circuit etc. offer the single-chip microcomputer input port of detecting control circuit board.
The utility model is sought sunlight through four-quadrant coarse adjustment sunlight sensor on a large scale; Utilized the sensor control circuit module that the signal of gathering has been carried out amplification and comparison process; The high-precision sun aspect sensor finally provides reliable high-precision signal to post processing circuitry; Thereby guarantee the realization of high-precision solar tracking system, make solar panel obtain maximum intensity of illumination.
Description of drawings
Fig. 1 is the four-quadrant coarse adjustment sunlight sensor structural representation of the utility model.
Fig. 2 is a sensor control circuit module circuit diagram.
Embodiment
Below in conjunction with accompanying drawing and embodiment this utility model is done further explain.
Four-quadrant coarse adjustment sunlight sensor is installed on the optically focused platform, adopts the sensor control circuit module that the signal that the light activated element of four-quadrant coarse adjustment sunlight sensor collects is amplified and comparison process;
As shown in Figure 1, said four-quadrant coarse adjustment sunlight sensor includes ball cover 101; Ball cover 101 is installed on the base plate 102; The central part of base plate 102 is equipped with coarse adjustment " ten " font zigzag draw-in groove bar 103, and coarse adjustment " ten " font zigzag draw-in groove bar 103 is divided into four parts of all directions equal length by black shadow shield 104, and black shadow shield 104 is processed and vertically be installed on the base plate 102 by four identical black acrylic boards of area; Black shadow shield 104 is fixedly set on the base plate 102; The shading face of black shadow shield 104 is parallel to the southeast, southwest, northwest respectively; The northeast four direction; Promptly become 45 ° of angles, on every limit of coarse adjustment " ten " font zigzag draw-in groove bar 103 photoresistance cell that the linearity is good is installed all, and must guarantee that the first light activated element S1, the second light activated element S2, the 3rd light activated element S3 are consistent with the performance parameter of the 4th light activated element S4 with coarse adjustment " ten " font zigzag draw-in groove bar 103 place directions.
The light activated element of installing on the said sensor can become approximately linear to change for its resistance of different illumination intensity in certain limit; The analog quantity that the light activated element S1-S4 of sensor produces is passed through signal amplification circuit; Filtering circuit, the processing of comparator circuit etc. offer the single-chip microcomputer input port of detecting control circuit board.
Like Fig. 2; The sensor control circuit module; Include signal amplification circuit, because the signal that light activated element detects is smaller, the differential amplifier circuit that amplifying circuit need adopt 3 dual operational amplifier LM741 to form; Its both-end input-single-ended output has the high characteristics of common-mode rejection ratio.R1=R3 wherein, R4=R5, R6=R7; Can calculate amplification multiple:
Accurate active absolute value circuit, this is a kind of improved absolute value circuit, distorted signals is lower, is fit to small-signal and handles.Its principle of work is: input voltage V3＞0 o'clock, and the input voltage of amplifier U358/1A is less than 0, and the output voltage of amplifier U358/1B is greater than 0; Diode D2 conducting; And diode D1 two ends have added reverse voltage and have been forced shutoff, and amplifier U358/1B promptly is a voltage follower, then V4=V3; Input voltage V3＜0 o'clock, the input voltage of amplifier U358/1A is greater than 0, and the output voltage of amplifier U358/1B is less than 0; Diode D1 conducting, and diode D2 two ends have added reverse voltage and have been turned off, amplifier U358/1A is as negater circuit; Make V4=-V3, so V4=|V|3.
V1 in the said circuit diagram, the input signal of V2 are that one group of light activated element group provides, the first light activated element S1 and the 3rd light activated element S3, and the second light activated element S2 and the 4th light activated element S4 constitute one group of light activated element group respectively; The output signal of V4 passes to the input port of single-chip microcomputer.
At first be transformed into 256 ranks that are divided into 0-255 behind the electric signal to the intensity of illumination of sunshine through light activated element; And 0 corresponding unglazed photograph; 255 is the strongest illumination; And think in sunshine; Sunlight intensity is identical in 4 photoresistance cell region areas of living in, and two promptly symmetrical photoelectric sensor output signals differences have only and just export effective tracking signal when the corresponding output signal difference is greater than certain setting threshold when the incident sunshine departs from the reception plane normal less than certain setting threshold.
As shown in Figure 1; The first light activated element S1, the second light activated element S2, the 3rd light activated element S3 and the 4th light activated element S4 are on coarse adjustment " ten " the font zigzag draw-in groove bar 103; The vertical range at normal conditions light activated element distance " ten " font zigzag draw-in groove bar 103 centers when for the first time four-quadrant coarse adjustment sunlight sensor being installed is identical; Light activated element receives the sunlight from different angles; The symmetrical first light activated element S1 and the 3rd light activated element S3; The second light activated element S2 and the 4th light activated element S4 form two groups of coarse adjustment light activated element groups: detect earlier and judge that the first light activated element S1 and the 3rd light activated element S3 form coarse adjustment thing light activated element group; Its institute's sunlight intensity of accepting is when identical, and coarse adjustment thing photoresistance cell group output signal difference is during less than certain coarse adjustment setting threshold, and controller does not send and lets the order of east-west direction motor action; Detect the coarse adjustment north and south light activated element group of judging that the second light activated element S2 and the 4th light activated element S4 form again; When its institute's sunlight intensity of accepting is identical; Coarse adjustment north and south light activated element group output signal difference is during less than certain coarse adjustment setting threshold, and controller does not send and lets the order of North and South direction motor action; When two groups of coarse adjustment photoresistance cell groups are exported signal difference all less than the coarse adjustment setting threshold, think this moment and when signal difference surpasses the coarse adjustment setting threshold, can rotate the basic vertical irradiation condenser of sunlight daylighting panel by the drive controlling motor.Quadrant sensors is as the coarse adjustment sunlight sensor: seek the solar time when system begins to start; Very big angle must be departed from the sun and condenser plane; When for example morning, tracker started; The sun in location by east and Fei Nier lens 202 towards to the west; The first light activated element S1 is in that to receive in the east the relatively strong production signal of illumination naturally maximum relatively, and black shadow shield 104 shelters from the sunshine of directive the 3rd light activated element S3, is in the 3rd light activated element S3 in west to equal zero basically because can't accept illumination generation signal; The first light activated element S1 and the 3rd light activated element S3 output coarse adjustment signal difference surpasses setting threshold so, and controller drives east-west direction motor moves eastwards.Why black shadow shield 104 selects black for use; Be because black color has the function of strong absorption sunshine; To reduce of the influence of offside reflection light as far as possible to light activated element; Make and to improve the precision of light activated element, prevent that it from being that MCU provides the output signal of making mistake by the sunshine that its only direct acceptance is vertically injected.Were it not for black shadow shield 104; Because Fei Nier lens 202 accept light application ratio a little less than; Though the first light activated element S1 is in and receives in the east intensity of illumination the strong production signal of other light activated element is maximum relatively relatively; But because the more weak generation signal of intensity of illumination is still less, and the 3rd light activated element S3 that is in the west also accepts illumination and produces certain signal, and normal conditions first light activated element S1 and the 3rd light activated element S3 are more or less the same; The first light activated element S1 and the 3rd light activated element S3 output coarse adjustment signal difference will reduce greatly so; Most probably less than the coarse adjustment setting threshold, controller does not send and lets the order of motor action, thereby can't make the automatic tracking system operate as normal.It is serious more that the first light activated element S1, the second light activated element S2, the 3rd light activated element S3 and the 4th light activated element S4 distance " ten " font zigzag draw-in groove bar 103 centers more closely receive the shading of black shadow shield; It is more little to accept intensity of illumination under the equal illumination condition; Through regulating their positions on " ten " font zigzag draw-in groove bar 103 respectively, change the size that it is influenced by the black shadow shield.The sunlight sensor of regular solar tracker requires to be installed in the center of condenser daylighting panel; Installation and maintenance is very inconvenient for large-scale condenser; This utility model can be through regulating the different of the first light activated element S1, the second light activated element S2, the 3rd light activated element S3 and the 4th light activated element S4 distance " ten " font zigzag draw-in groove bar, 103 centers respectively, can be with its place that be installed on any idle of Fei Nier lens 202 and be beneficial to maintenance.
Such as; Four-quadrant coarse adjustment sunlight sensor is installed in the north-east of condenser daylighting panel; Suppose that the beginning first light activated element S1, the second light activated element S2, the 3rd light activated element S3 and the 4th light activated element S4 are identical apart from the vertical range at " ten " font zigzag draw-in groove bar 103 centers; Solar light irradiation sensor position is that the north-east zone of daylighting panel is the strongest so; Only need this moment to move certain distance to the first light activated element S1 and the 4th light activated element S4 to " ten " font draw-in groove bar center position; Reduce the intensity that the first light activated element S1 and the 4th light activated element S4 accept illumination, make coarse adjustment thing light activated element group and coarse adjustment north and south light activated element group output signal difference, drive the east-west direction motor earlier and westwards move greater than certain coarse adjustment setting threshold; Drive the motion to the south earlier of North and South direction motor again; Finally can make the central authorities of the basic direct projection condenser of sunlight daylighting panel, make the intensity of illumination that condenser daylighting panel integral body obtains maximum, tracking accuracy can reach about 3% solar tracking system provides the coarse adjustment of photosignal through four-quadrant coarse adjustment sunlight sensor after.
Claims (2)
1. four-quadrant coarse adjustment sunlight sensor is installed on the optically focused platform, it is characterized in that, adopts the sensor control circuit module that the signal that the light activated element of four-quadrant coarse adjustment sunlight sensor collects is amplified and comparison process;
Said four-quadrant coarse adjustment sunlight sensor; Include acrylic ball cover (101); Acrylic ball cover (101) is installed on the base plate (102), and the central part of base plate (102) is equipped with coarse adjustment " ten " font zigzag draw-in groove bar (103), and coarse adjustment " ten " font zigzag draw-in groove bar (103) is divided into four parts of all directions equal length by black shadow shield (104); Black shadow shield (104) is processed and vertically is installed on the base plate (102) by four identical black acrylic boards of area; Black shadow shield (104) is fixedly set on the base plate (102), and the shading face of black shadow shield (104) is parallel to the southeast, southwest respectively; The northwest; The northeast four direction promptly becomes 45 ° of angles with coarse adjustment " ten " font zigzag draw-in groove bar (103) place direction, and a photoresistance cell all is installed on every limit of coarse adjustment " ten " font zigzag draw-in groove bar (103); I.e. first light activated element (S1), second light activated element (S2), the 3rd light activated element (S3) and the 4th light activated element (S4), and first light activated element (S1), second light activated element (S2), the 3rd light activated element (S3) are consistent with the performance parameter of the 4th light activated element (S4);
Said sensor control circuit module is made up of said input signal V1 signal amplification circuit and accurate active absolute value circuit; Input signal V2 is provided by one group of light activated element group, input signal V1, and input signal V2 obtains exporting signal V3 after three dual operational amplifier LM741 and three potentiometers processing; Output signal V3 is through amplifier U358/1A; U358/1B obtains exporting signal V4 after handling, and said output signal V4 passes to the input end of single-chip microcomputer.
2. four-quadrant coarse adjustment sunlight sensor according to claim 1; It is characterized in that; The input signal of said sensor control circuit module is that one group of light activated element group provides; First light activated element (S1) and the 3rd light activated element (S3), second light activated element (S2) and the 4th light activated element (S4) constitute one group of light activated element group respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204256061U CN202351713U (en) | 2011-11-01 | 2011-11-01 | Four-quadrant coarse adjustment sunlight sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011204256061U CN202351713U (en) | 2011-11-01 | 2011-11-01 | Four-quadrant coarse adjustment sunlight sensor |
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| CN202351713U true CN202351713U (en) | 2012-07-25 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103455046A (en) * | 2013-06-27 | 2013-12-18 | 南京工业职业技术学院 | Automatic tracking sunshade |
| CN103904987A (en) * | 2014-04-04 | 2014-07-02 | 哈尔滨工程大学 | Two-degree of freedom solar tracker |
| CN103970152A (en) * | 2014-05-19 | 2014-08-06 | 苏州卫生职业技术学院 | Automatic sunlight following positioning device, method and system |
| CN104281161A (en) * | 2014-10-23 | 2015-01-14 | 天津市科航电子科技有限公司 | Automatic sunlight tracking system for photovoltaic cell panel |
| CN104317311A (en) * | 2014-10-23 | 2015-01-28 | 天津市畅悦电子科技有限公司 | Photovoltaic energy signal driving circuit |
| CN104407627A (en) * | 2014-10-23 | 2015-03-11 | 天津市畅悦电子科技有限公司 | Photovoltaic energy photoreceptor |
| CN105204531A (en) * | 2015-10-27 | 2015-12-30 | 李豹 | Phototropic controller for solar panel |
| CN105356833A (en) * | 2015-12-15 | 2016-02-24 | 邵振宇 | Photovoltaic solar sun tracking and dedusting bracket device |
| CN105717950A (en) * | 2015-12-21 | 2016-06-29 | 南宁学院 | Light source tracking system |
| CN110289804A (en) * | 2017-05-11 | 2019-09-27 | 金钱猫科技股份有限公司 | A kind of intelligent video processing method and processing device |
| CN113483889A (en) * | 2021-06-30 | 2021-10-08 | 孝感华工高理电子有限公司 | Two district sunlight sensor lens structure |
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2011
- 2011-11-01 CN CN2011204256061U patent/CN202351713U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103455046A (en) * | 2013-06-27 | 2013-12-18 | 南京工业职业技术学院 | Automatic tracking sunshade |
| CN103904987A (en) * | 2014-04-04 | 2014-07-02 | 哈尔滨工程大学 | Two-degree of freedom solar tracker |
| CN103970152A (en) * | 2014-05-19 | 2014-08-06 | 苏州卫生职业技术学院 | Automatic sunlight following positioning device, method and system |
| CN104281161B (en) * | 2014-10-23 | 2017-02-15 | 天津市科航电子科技有限公司 | Automatic sunlight tracking system for photovoltaic cell panel |
| CN104317311A (en) * | 2014-10-23 | 2015-01-28 | 天津市畅悦电子科技有限公司 | Photovoltaic energy signal driving circuit |
| CN104407627A (en) * | 2014-10-23 | 2015-03-11 | 天津市畅悦电子科技有限公司 | Photovoltaic energy photoreceptor |
| CN104281161A (en) * | 2014-10-23 | 2015-01-14 | 天津市科航电子科技有限公司 | Automatic sunlight tracking system for photovoltaic cell panel |
| CN105204531A (en) * | 2015-10-27 | 2015-12-30 | 李豹 | Phototropic controller for solar panel |
| CN105204531B (en) * | 2015-10-27 | 2017-10-13 | 李豹 | Solar panel is to optical controller |
| CN105356833A (en) * | 2015-12-15 | 2016-02-24 | 邵振宇 | Photovoltaic solar sun tracking and dedusting bracket device |
| CN105717950A (en) * | 2015-12-21 | 2016-06-29 | 南宁学院 | Light source tracking system |
| CN110289804A (en) * | 2017-05-11 | 2019-09-27 | 金钱猫科技股份有限公司 | A kind of intelligent video processing method and processing device |
| CN110289804B (en) * | 2017-05-11 | 2021-02-02 | 金钱猫科技股份有限公司 | Intelligent image information extraction method and device |
| CN113483889A (en) * | 2021-06-30 | 2021-10-08 | 孝感华工高理电子有限公司 | Two district sunlight sensor lens structure |
| CN113483889B (en) * | 2021-06-30 | 2024-05-28 | 孝感华工高理电子有限公司 | Double-area sunlight sensor lens structure |
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Granted publication date: 20120725 Termination date: 20121101 |