CN101619969A - Sun direction-finding intelligent sensor - Google Patents
Sun direction-finding intelligent sensor Download PDFInfo
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- CN101619969A CN101619969A CN200810234087A CN200810234087A CN101619969A CN 101619969 A CN101619969 A CN 101619969A CN 200810234087 A CN200810234087 A CN 200810234087A CN 200810234087 A CN200810234087 A CN 200810234087A CN 101619969 A CN101619969 A CN 101619969A
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Abstract
The invention relates to an intelligent sensor for finding sunlight incident direction, which is provided with a CPU and output in the form of digitalized information, belonging to the technical field of solar energy application and sensor. The sensor consists of 3 parts: a hardware circuit, a software and a shell. The hardware circuit is composed of the CPU, an electric power source circuit, a photoresistance array, a temperature sensor, an input interface module, an encoding module, a communication module and a memory module; the hardware circuits of all parts are connected by a circuit board. The sensor is characterized in that the shell is cylindrical, the lower part thereof is a profile parallel to an axis, a group of round holes distributed in radial direction are arranged on a same fracture surface on the surface of a circular cylinder, axis interval angles of adjacent round holes are the same, the diameters of the round holes are larger than the diameters of the photoresistances, but depths are the same; the hole wall is a scattered light filter composed of black light absorption materials; the photoresistance array is arranged inside the scattered light filter, a light-sensitive surface of the photoresistance array faces outwards. The sun direction-finding intelligent sensor, according to different sensitization conditions of the photoresistance array, figures out the angle between the present incident ray and the working face; the angle and in situ temperature and other information are transmitted outwards in the form of digit via communication circuits. The sensor of the invention can be applied to follow-up control occasions where use ratio of solar energy photo-thermal and photovoltaic equipment can be improved and the cost is low.
Description
One, technical field
The present invention relates to a kind of sun direction-finding intelligent sensor, belong to Application of Solar Energy technology and sensor technical field, be applied to sun tracker.
Two, background technology
Sun power is as a kind of energy of cleanliness without any pollution, and development prospect is boundless, and density is low, intermittent, the continuous problem that changes of space distribution yet it also exists, and this just has higher requirement to the collection and the utilization of sun power.In solar thermal utilization,, must make heat collector follow the tracks of the sun from sun to sun in order to obtain middle high temperature heat; In the solar energy generating, under the same terms, from of the generated energy raising 35% of motion tracking generating set than stationary power generation equipment, cost descends 25%, therefore in sun power utilizes, it is necessary following the tracks of, and the precision of tracking means influences the performance of equipment utilization sun power significantly, and therefore the control mode research to tracking means is a job highly significant.Closed loop, open loop, mixed-control mode are generally arranged, wherein close-loop control mode and mixed-control mode all need use sensor to measure deviation between incident sunray and systematic optical axis, when deviation surpasses a threshold values, rotate by the motor-driven mechanical part, reduce deviation, up to making sunray parallel again, realize sun altitude and azimuthal tracking with systematic optical axis.
Effective control of tracker largely depends on sensor, therefore, and the reliability of sensor, anti-interference, quality that degree of accuracy relates to The whole control system.Sensing element commonly used has photoelectric cell, photoresistance, photoelectric tube, bimetal strip etc., generally is directly to insert metering circuit, has inconvenient, the problems such as precision is not high, standard disunity of installing.
Three, summary of the invention
Sun direction-finding intelligent sensor of the present invention be at the employed standalone sensor of solar tracking system inconvenience is installed, precision is not high, standard differs and the intelligence sensor of a kind of digital signal output of designing.Use one group of photoresistance array, by collection and the pre-service (A/D conversion, digital filtering) of single-chip microcomputer to the light activated element signal, calculate the angle of workplace and incident ray according to particular model, export to control-driven system by communication port with digital form.But many other information of group such as this sensor while collection site temperature, data based protocol format transmits together.Have characteristics such as information digitalization, highly versatile, opening, extendability.
Technical scheme of the present invention: described device is made of hardware circuit, software and shell three parts.Hardware circuit part is made up of CPU, power circuit, photoresistance array, temperature sensor, input interface module, coding module, communication module, memory module, and CPU is a core, and each module is connected with the I/O mouth of CPU by printed circuit board respectively.Wherein the photoresistance array is around rotating shaft certain angle distribution at interval, and is arranged in the scattered light wave filter that hole wall is the black light-absorbing material; Input interface module is provided with one group for the analog interface of other analog signal sensors input of expansion and the digital interface of one group of other digital signal sensors input.Software is made up of analog-digital conversion module, data processing module, data communication module and data memory module.Shell of the present invention is cylindric, the bottom is the section that paralleled to the axis, scattered light wave filter and cylinder blanket are connected as a single entity, be on the same section of periphery, to be provided with one group to be radially-arranged circular hole, the aperture with than photoresistance slightly larger in diameter, hole wall is the black light-absorbing material, degree of depth unanimity, and angle is identical at interval for the axis of adjacent holes.
The beneficial effect of sun direction-finding intelligent sensor of the present invention is: sensor output signal is an amount of angular deviation, and is digital signal, helps the decision-making of control system; Highly versatile both had been applicable to uniaxiality tracking control occasion, and two intelligence sensors can use simultaneously, was applicable to double-axis tracking control occasion; Installation is simple, only needs bottom sectional of the present invention is parallel to workplace, and sensor axis gets final product in same plane with the tracking rotating shaft; Precision height, cost are low, can be widely used in the tracking Control occasion that sun power is increased operation rate.
Four, description of drawings
Fig. 1 is the section structure synoptic diagram of sun direction-finding intelligent sensor.
Fig. 2 is the circuit structure block diagram of sun direction-finding intelligent sensor.
Five, embodiment
The shell of sun direction-finding intelligent sensor is cylindric, the bottom is the section that paralleled to the axis, and the hole of photoresistance being installed and pointing to the section center of circle is set on the same section of periphery, and diameter is with more bigger than photoresistance, degree of depth unanimity, the axis of adjacent holes is certain angle at interval.Its section structure synoptic diagram as shown in Figure 1, (1)-(8) are for laying eight holes of photoresistance, photoresistance is installed in the bottom in hole, its light-sensitive surface is toward the outer side; (9) be cylindrical outer surface; (10) be the section of bottom; (11) be used to lay the cavity of the electric wire of Connection Element for sensor.The both sides of the normal of the section (10) bottom hole (4) and hole (5) are distributed in, when the section (10) of sunshine vertical base, it is identical and the strongest that the interior photoresistance in hole (4) and hole (5) receives intensity of illumination, and the photoresistance reception intensity of illumination other hole in is little than hole (4) and hole (5) all.
The circuit structure block diagram of sun direction-finding intelligent sensor as shown in Figure 2, circuit part is made up of CPU (12), power circuit (13), photoresistance array (14), temperature sensor (15), input interface module, coding module (18), communication module (19), memory module (20), CPU (12) is a core, and each module is connected with the I/O mouth of CPU by printed circuit board respectively.Wherein photoresistance array (14) is around rotating shaft certain angle distribution at interval, and is arranged in the optical filter that hole wall is the black light-absorbing material; Input interface module is provided with one group for the analog interface (16) of other analog signal sensors input of expansion and the digital interface (17) of one group of other digital signal sensors input.
Software divided data acquisition module, data processing module, data communication module and data memory module are formed.
During application, only need sun direction-finding intelligent sensor is installed on the follower, make bottom sectional (10) be parallel to the workplace of solar device, the central shaft of sun direction-finding intelligent sensor and institute's feedback and tracking rotation axis are got final product in same plane.Because whole sensor has only small power consumption, power supply can be imported by the outside, but also solar panel power supply.Output is sensor to be obtained and handle the digital signal that draws to be sent to control system by RS-232.
Claims (4)
1, sun direction-finding intelligent sensor, it comprises hardware circuit, software and shell three parts, it is characterized in that: hardware circuit part is made up of modules such as CPU, photoresistance array, communication, storages, the each several part hardware circuit connects by circuit board, and wherein the photoresistance array is that a plurality of photoresistance that are placed in the scattered light light filter constitute.
2, according to claim 1, it is characterized in that: the scattered light light filter is along one group of circular hole on the same section in cylindrical shell surface, this group circular hole is along the radial distribution of cylinder, depth unanimity, angle equates at interval, the aperture is connected as a single entity with sensor outer housing than photoresistance slightly larger in diameter, and hole wall is the black light-absorbing material.
3, according to claim 1, it is characterized in that: the photoresistance array is one group of photoresistance, places the bottom in each hole of scattered light light filter respectively, and diameter is more smaller than scattered light light filter aperture, and light-sensitive surface outwardly.
4, according to claim 1, it is characterized in that: communication module is monolithic processor controlled RS-232 circuit, and output signal is digital signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2008102340873A CN101619969B (en) | 2008-11-21 | 2008-11-21 | Sun direction-finding intelligent sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102340873A CN101619969B (en) | 2008-11-21 | 2008-11-21 | Sun direction-finding intelligent sensor |
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| Publication Number | Publication Date |
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| CN101619969A true CN101619969A (en) | 2010-01-06 |
| CN101619969B CN101619969B (en) | 2011-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008102340873A Expired - Fee Related CN101619969B (en) | 2008-11-21 | 2008-11-21 | Sun direction-finding intelligent sensor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976082A (en) * | 2010-11-10 | 2011-02-16 | 河海大学常州校区 | Intelligent sensor for follow-up double-shaft tracking |
| CN103105157A (en) * | 2013-01-31 | 2013-05-15 | 合肥聚能新能源科技有限公司 | Sunlight irradiation position coordinate monitor |
| CN105004331A (en) * | 2015-07-22 | 2015-10-28 | 常州安塔歌电子科技有限公司 | Azimuth angle sensor based on sun direction finding |
| CN107544559A (en) * | 2017-09-28 | 2018-01-05 | 江苏大力城电气有限公司 | A kind of two axles tracking holder device |
| CN112332776A (en) * | 2020-09-27 | 2021-02-05 | 中城投集团新能源有限责任公司 | Full-automatic power generation device for tracking direct sunlight direction |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100538200C (en) * | 2006-06-29 | 2009-09-09 | 宁波新亚机电有限公司 | The solar tracking locator that sunlight collecting system is used |
| CN100554818C (en) * | 2006-08-24 | 2009-10-28 | 张建民 | Solar intelligent tracking device |
| CN101192801A (en) * | 2006-11-22 | 2008-06-04 | 上海久能能源科技发展有限公司 | Solar intelligent tracking device |
-
2008
- 2008-11-21 CN CN2008102340873A patent/CN101619969B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976082A (en) * | 2010-11-10 | 2011-02-16 | 河海大学常州校区 | Intelligent sensor for follow-up double-shaft tracking |
| CN101976082B (en) * | 2010-11-10 | 2013-06-19 | 河海大学常州校区 | Intelligent sensor for follow-up double-shaft tracking |
| CN103105157A (en) * | 2013-01-31 | 2013-05-15 | 合肥聚能新能源科技有限公司 | Sunlight irradiation position coordinate monitor |
| CN105004331A (en) * | 2015-07-22 | 2015-10-28 | 常州安塔歌电子科技有限公司 | Azimuth angle sensor based on sun direction finding |
| CN107544559A (en) * | 2017-09-28 | 2018-01-05 | 江苏大力城电气有限公司 | A kind of two axles tracking holder device |
| CN112332776A (en) * | 2020-09-27 | 2021-02-05 | 中城投集团新能源有限责任公司 | Full-automatic power generation device for tracking direct sunlight direction |
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| Publication number | Publication date |
|---|---|
| CN101619969B (en) | 2011-08-03 |
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Granted publication date: 20110803 Termination date: 20131121 |