DE4423778A1 - Four-quadrant photodetector sensor detecting light source direction - Google Patents
Four-quadrant photodetector sensor detecting light source directionInfo
- Publication number
- DE4423778A1 DE4423778A1 DE19944423778 DE4423778A DE4423778A1 DE 4423778 A1 DE4423778 A1 DE 4423778A1 DE 19944423778 DE19944423778 DE 19944423778 DE 4423778 A DE4423778 A DE 4423778A DE 4423778 A1 DE4423778 A1 DE 4423778A1
- Authority
- DE
- Germany
- Prior art keywords
- light source
- sensor
- sensors
- source direction
- components
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/02—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by astronomical means
- G01C21/025—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by astronomical means with the use of startrackers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Astronomy & Astrophysics (AREA)
- Automation & Control Theory (AREA)
- General Physics & Mathematics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Meßsystem mit vier photo sensitiven Komponenten zur Erfassung des Fehlwinkels einer punktförmigen Lichtquelle bezogen auf eine Flächennormale.The invention relates to a measuring system with four photo sensitive components for detecting the misalignment of a punctiform light source based on a surface normal.
Das Haupteinsatzgebiet eines solchen Meßsystems liegt in der Nachführung eines Solargenerators (z. B. Silicium Solar Panel) nach dem Stand der Sonne. Weitere Anwendungen liegen in der Lokalisierung und Bewertung verschiedener Punktlichtquellen, die auch diskontinuierlich strahlen können und damit identi fizierbar sind.The main area of application of such a measuring system is in Tracking a solar generator (e.g. silicon solar panel) according to the position of the sun. Other applications are in the Localization and evaluation of different point light sources, which can also emit discontinuously and thus identi are fitable.
Der Stand der Technik, von dem die Erfindung ausgeht, ist be kannt aus der Firmenschrift: "Dornier Solar Tracking System, 7990 Friedrichshaven, Dornier System GmbH". Der dort beschrie bene Crossed-Slit Sensor hat bei hoher Auflösung einen Er fassungsbereich von ± 60°.The prior art from which the invention is based is knows from the company script: "Dornier Solar Tracking System, 7990 Friedrichshaven, Dornier System GmbH ". The one described there bene Crossed-Slit Sensor has an Er at high resolution range of ± 60 °.
Das technische Problem, mit dem sich die Erfindung befaßt,
besteht darin nicht nur eine diskrete Strahlungsquelle, ins
besondere die Sonne mit der ohnehin ja kalendarisch bekannten
Position lokalisieren zu können, sondern z. B. die mit größter
Energie strahlenden Bereiche im Himmel zu bestimmen. Es zeigt
sich, daß bei verdeckter Sonne oder diffuser Sonneneinstrah
lung eine Ausrichtung auf den hellsten erfaßten Raumpunkt er
folgt. Die Abschattungen können auch durch Gebäude oder natür
liche Hindernisse entstehen. Mit der vorliegenden Erfindung
des räumlichen - nicht ebenen - Vierquadrantensensors wird
also eine von dem Tagesdatum, der Tageszeit und der genauen
Kenntnis der geographischen Lage unabhängige Ausrichtung des
Solargenerators möglich:
Der Wirkungsgrad der Generatoranlage wird verbessert.The technical problem with which the invention is concerned is not only to be able to localize a discrete radiation source, in particular to locate the sun with the position that is already known in the calendar, but z. B. to determine the areas with the greatest energy in the sky. It can be seen that when the sun is hidden or diffuse sunshine, it is aligned to the brightest point in the room. The shadowing can also be caused by buildings or natural obstacles. With the present invention of the spatial - not flat - four-quadrant sensor, an orientation of the solar generator that is independent of the date, the time of day and the exact knowledge of the geographic location is possible:
The efficiency of the generator system is improved.
Weitere Vorzüge der Erfindung werden im Zusammenhang mit der Erläuterung der Zeichnungen, sowie der Ausführungsformen der Erfindung, deren Merkmale in den Unteransprüchen angegeben sind, beschrieben.Further advantages of the invention are in connection with the Explanation of the drawings, as well as the embodiments of the Invention, the features of which are specified in the subclaims are described.
Es zeigen:Show it:
Fig. 1 schematische Anordnung des Sensors im Querschnitt und in Draufsicht. Fig. 1 shows a schematic arrangement of the sensor in cross section and in plan view.
Fig. 2 perspektivische Ansicht und Draufsicht in der Ausführungsform als Pyramidenstumpf. Fig. 2 perspective view and top view in the embodiment as a truncated pyramid.
Fig. 3 Bockschaltbild einer Anwendung zur Generatornachführung. Fig. 3 block diagram of an application for generator tracking.
Die in Fig. 1 gezeigte Anordnung zeigt zwei der vier Senso ren, deren Oberfläche jeweils gegenüber der Grundfläche in einem Winkel geneigt sind. Eine weit entfernte Lichtquelle liefert auf den Sensor 1 eine hohe Strahlungsdichte, auf den Sensor 2 hingegen eine kleine Strahlungsdichte. Daraus folgt eine Differenz dieser gegenüberliegenden Sensorsignale, die ein Maß ist für den Winkel, unter dem die Lichtquelle gegen über der Grundflächennormalen strahlt. Befindet sich die Lichtquelle in der Zeichenebene, so sind die Strahlungsdichten in den Sensoren 3 und 4 gleich groß. Deren Differenzsignal ist also gleich null. Die Lage der Sensoren 3 und 4 ist in der Draufsicht zu erkennen.The arrangement shown in Fig. 1 shows two of the four sensors Ren, the surface of which is inclined at an angle relative to the base. A distant light source supplies to the sensor 1 is a high radiation density at the sensor 2, however, a small radiation density. This results in a difference between these opposite sensor signals, which is a measure of the angle at which the light source shines in relation to the surface normal. If the light source is in the plane of the drawing, the radiation densities in sensors 3 and 4 are the same. Their difference signal is therefore zero. The position of the sensors 3 and 4 can be seen in the top view.
Die in der Fig. 2 dargestellte Variante der Konstruktion auf einem Pyramidenstumpf hat den Vorteil, daß die Grundflächen, auf denen die Sensoren zu montieren sind, eben sind. Die zu grundeliegende Pyramide ist gleichseitig. Es liegt eine ein fache Gewährleistung der Präzision der zueinander geneigten Richtungen vor.The variant of the construction on a truncated pyramid shown in FIG. 2 has the advantage that the base surfaces on which the sensors are to be mounted are flat. The underlying pyramid is equilateral. There is a simple guarantee of the precision of the inclined directions.
In der Fig. 3 ist die an sich bekannte Schaltungsanordnung enthalten. Weiterhin sind sowohl Verzögerungsglieder für die Stellglieder als auch Bezugsberechnungen der Differenzsignale zu den mittleren eingestrahlten Energieniveaus vorzusehen. In FIG. 3, the per se known circuit arrangement is included. Furthermore, both delay elements for the actuators and reference calculations of the difference signals to the mean radiated energy levels are to be provided.
Verglichen mit dem bisherigen Sensorprinzip (Stand der Tech nik, Dornier) entsteht das Differenzsignal durch die geneig ten Flächen und nicht durch optische Blenden.Compared to the previous sensor principle (state of tech nik, Dornier) the difference signal is generated by the incline surfaces and not through optical blinds.
Die vier Komponenten werden in jedem Fall durch geeignetes Filterglas gegen thermische Überlastung zu schützen sein.The four components are in any case appropriate Protect filter glass against thermal overload.
Nach der beschriebenen Erfindung wurde von mir ein Sensor nach Anspruch 2 gefertigt und in einer Versuchseinrichtung zur Solargeneratornachführung im Jahr 1993 in Betrieb genom men (Standort: Oberstufenzentrum Energietechnik 1, 13599 Berlin, Goldbeckweg 8-14).According to the invention described, I created a sensor manufactured according to claim 2 and in a test facility for solar generator tracking in 1993 genom in operation men (Location: Oberstufenzentrum Energietechnik 1, 13599 Berlin, Goldbeckweg 8-14).
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19944423778 DE4423778A1 (en) | 1994-06-30 | 1994-06-30 | Four-quadrant photodetector sensor detecting light source direction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19944423778 DE4423778A1 (en) | 1994-06-30 | 1994-06-30 | Four-quadrant photodetector sensor detecting light source direction |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4423778A1 true DE4423778A1 (en) | 1996-01-04 |
Family
ID=6522443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19944423778 Withdrawn DE4423778A1 (en) | 1994-06-30 | 1994-06-30 | Four-quadrant photodetector sensor detecting light source direction |
Country Status (1)
Country | Link |
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DE (1) | DE4423778A1 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2126507A1 (en) * | 1997-01-03 | 1999-03-16 | Garcia Ramon Ferreiro | Direction sensor based on photovoltaic effect |
ES2134730A1 (en) * | 1997-07-22 | 1999-10-01 | Univ De A Coruna | System for guiding autonomous vehicles by a photovoltaic offset sensor |
WO2000071942A1 (en) * | 1999-05-19 | 2000-11-30 | Yaoming Zhang | Solar tracing sensor and application thereof in solar auto-tracing device |
AT504338B1 (en) * | 2006-11-30 | 2008-05-15 | Hannes Dr Hassler | METHOD AND DEVICE FOR ALIGNING AT LEAST ONE HELIOSTAT |
JP2008516352A (en) * | 2004-10-13 | 2008-05-15 | シーメンス アクチエンゲゼルシヤフト | Apparatus and method for lighting simulation and shadow simulation in augmented reality system |
WO2010123399A1 (en) * | 2009-04-24 | 2010-10-28 | Ermakov Oleg Ivanovich | Measurement of the angular coordinates of a luminous reference point |
US7893391B2 (en) * | 2007-01-08 | 2011-02-22 | Edtek, Inc. | Positional sensor for solar energy conversion device |
CN101997449A (en) * | 2009-08-13 | 2011-03-30 | 无锡昊阳新能源科技有限公司 | Sun-tracking detector having wide-angle capturing and precise tracking functions |
CN102818508A (en) * | 2012-08-09 | 2012-12-12 | 嘉兴优太太阳能有限公司 | Free-angle spiral measuring device for accuracy degree of photovoltaic tracking system |
CN104391511A (en) * | 2014-11-21 | 2015-03-04 | 广西智通节能环保科技有限公司 | Solar tracking sensor and mounting method thereof |
DE102013109506A1 (en) | 2013-08-30 | 2015-03-05 | CiS Forschungsinstitut für Mikrosensorik und Photovoltaik GmbH | Directionally sensitive photosensor for detecting the direction of incidence of light |
CN104852677A (en) * | 2015-03-19 | 2015-08-19 | 华南理工大学 | Micro-lens light-absorbing and micro-spherical silicon light-condensing combined solar cell |
CN105259930A (en) * | 2015-11-25 | 2016-01-20 | 佛山科学技术学院 | All-weather solar azimuth tracking method and device |
-
1994
- 1994-06-30 DE DE19944423778 patent/DE4423778A1/en not_active Withdrawn
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2126507A1 (en) * | 1997-01-03 | 1999-03-16 | Garcia Ramon Ferreiro | Direction sensor based on photovoltaic effect |
ES2134730A1 (en) * | 1997-07-22 | 1999-10-01 | Univ De A Coruna | System for guiding autonomous vehicles by a photovoltaic offset sensor |
WO2000071942A1 (en) * | 1999-05-19 | 2000-11-30 | Yaoming Zhang | Solar tracing sensor and application thereof in solar auto-tracing device |
JP2008516352A (en) * | 2004-10-13 | 2008-05-15 | シーメンス アクチエンゲゼルシヤフト | Apparatus and method for lighting simulation and shadow simulation in augmented reality system |
EP2057445A1 (en) * | 2004-10-13 | 2009-05-13 | Siemens Aktiengesellschaft | Device and method for light and shade simulation in an augmented-reality system |
AT504338B1 (en) * | 2006-11-30 | 2008-05-15 | Hannes Dr Hassler | METHOD AND DEVICE FOR ALIGNING AT LEAST ONE HELIOSTAT |
US7893391B2 (en) * | 2007-01-08 | 2011-02-22 | Edtek, Inc. | Positional sensor for solar energy conversion device |
WO2010123399A1 (en) * | 2009-04-24 | 2010-10-28 | Ermakov Oleg Ivanovich | Measurement of the angular coordinates of a luminous reference point |
CN101997449A (en) * | 2009-08-13 | 2011-03-30 | 无锡昊阳新能源科技有限公司 | Sun-tracking detector having wide-angle capturing and precise tracking functions |
CN102818508A (en) * | 2012-08-09 | 2012-12-12 | 嘉兴优太太阳能有限公司 | Free-angle spiral measuring device for accuracy degree of photovoltaic tracking system |
CN102818508B (en) * | 2012-08-09 | 2015-12-02 | 嘉兴优太太阳能有限公司 | The photovoltaic tracking system accuracy screw type measurement mechanism of free angle |
DE102013109506A1 (en) | 2013-08-30 | 2015-03-05 | CiS Forschungsinstitut für Mikrosensorik und Photovoltaik GmbH | Directionally sensitive photosensor for detecting the direction of incidence of light |
CN104391511A (en) * | 2014-11-21 | 2015-03-04 | 广西智通节能环保科技有限公司 | Solar tracking sensor and mounting method thereof |
CN104852677A (en) * | 2015-03-19 | 2015-08-19 | 华南理工大学 | Micro-lens light-absorbing and micro-spherical silicon light-condensing combined solar cell |
CN104852677B (en) * | 2015-03-19 | 2017-04-19 | 华南理工大学 | Micro-lens light-absorbing and micro-spherical silicon light-condensing combined solar cell |
CN105259930A (en) * | 2015-11-25 | 2016-01-20 | 佛山科学技术学院 | All-weather solar azimuth tracking method and device |
CN105259930B (en) * | 2015-11-25 | 2018-02-23 | 佛山科学技术学院 | Round-the-clock solar azimuth tracking and device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |