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
本发明涉及一种测定太阳光入射方向的带有CPU的输出为数字化信息的智能传感器，属于太阳能应用技术领域和传感器技术领域。它包括硬件电路、软件和外壳三大部分。硬件电路部分由CPU、电源电路、光敏电阻阵列、温度传感器、输入接口模块、编码模块、通信模块、存储模块组成，各部分硬件电路通过电路板连接。显著特征是：外壳呈圆柱状，下部为平行于轴线的一个剖面，圆柱表面同一断面上设置一组呈径向分布的圆孔，相邻圆孔的轴线间隔角度相同，直径比光敏电阻略大，深度一致，孔壁为黑色吸光材料构成的散射光滤光器，光敏电阻阵列放置在散射光滤光器内，感光面朝外。太阳测向智能传感器根据光敏电阻阵列中不同的感光情况，计算出当前入射光线与工作面的角度，该角度及现场温度等其它信息均以数字形式通过通信电路向外发送。本发明可以用于太阳能光热、光伏设备提高利用率的跟踪控制场合，成本低廉。
The invention relates to an intelligent sensor with a CPU for measuring the incident direction of sunlight, and the output is digital information, which belongs to the field of solar energy application technology and the field of sensor technology. It includes three parts: hardware circuit, software and shell. The hardware circuit part is composed of CPU, power supply circuit, photoresistor array, temperature sensor, input interface module, coding module, communication module, and storage module, and each part of the hardware circuit is connected through a circuit board. The notable features are: the shell is cylindrical, the lower part is a section parallel to the axis, a group of radially distributed round holes are set on the same section of the cylindrical surface, the axis interval angles of adjacent round holes are the same, and the diameter is slightly larger than that of the photoresistor , the depth is consistent, the hole wall is a scattered light filter made of black light-absorbing material, the photosensitive resistor array is placed in the scattered light filter, and the photosensitive surface faces outward. The solar direction-finding smart sensor calculates the angle between the current incident light and the working surface according to the different photosensitive conditions in the photoresistor array, and the angle and other information such as site temperature are sent out in digital form through the communication circuit. The invention can be used in tracking control occasions for improving the utilization rate of solar thermal and photovoltaic equipment, and has low cost.
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)
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 Smart Sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008102340873A CN101619969B (en) | 2008-11-21 | 2008-11-21 | Sun Direction Finding Smart 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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| CN2008102340873A Expired - Fee Related CN101619969B (en) | 2008-11-21 | 2008-11-21 | Sun Direction Finding Smart 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 | Sun Smart 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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| CN101619969B (en) | 2011-08-03 |
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