AT3459U1 - DEVICE FOR DETERMINING THE COLOR TEMPERATURE, THE IR PART AND THE BRIGHTNESS OF DAYLIGHT - Google Patents
DEVICE FOR DETERMINING THE COLOR TEMPERATURE, THE IR PART AND THE BRIGHTNESS OF DAYLIGHT Download PDFInfo
- Publication number
- AT3459U1 AT3459U1 AT0015499U AT15499U AT3459U1 AT 3459 U1 AT3459 U1 AT 3459U1 AT 0015499 U AT0015499 U AT 0015499U AT 15499 U AT15499 U AT 15499U AT 3459 U1 AT3459 U1 AT 3459U1
- Authority
- AT
- Austria
- Prior art keywords
- brightness
- color temperature
- daylight
- determining
- time
- Prior art date
Links
- 230000005855 radiation Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/60—Radiation pyrometry, e.g. infrared or optical thermometry using determination of colour temperature
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/20—Optical features of instruments
- B60K2360/33—Illumination features
- B60K2360/349—Adjustment of brightness
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Radiation Pyrometers (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
Die Erfindung betrifft eine Vorrichtung zur Bestimmung der Helligkeit, des IR-Anteils und der Farbtemperatur von Tageslicht. Eine vereinfachte Bestimmung der Farbtemperatur, der Helligkeit und des IR-Anteils ist dadurch möglich, daß sie mindestens einen Helligkeitssensor, eine Vorrichtung zur Messung der Zeit sowie eine Recheneinheit umfaßt, die die Farbtemperatur und den IR-Wert auf der Basis der gemessenen Helligkeit und der Zeit berechnet.The invention relates to a device for determining the brightness, the IR component and the color temperature of daylight. A simplified determination of the color temperature, the brightness and the IR component is possible in that it comprises at least one brightness sensor, a device for measuring the time and an arithmetic unit which determine the color temperature and the IR value on the basis of the measured brightness and Time calculated.
Description
<Desc/Clms Page number 1>
Die vorliegende Erfindung betrifft eine neuartige Vorrichtung, mit der die Helligkeit, der IR-Anteil und die Farbtemperatur von Tageslicht bestimmt werden kann.
Tageslichtmessvorrichtungen sind prinzipiell bekannt und werden beispielsweise zur Regelung von Beschattungeanlagen an ebäuden oder zur Steuerung einer Tageslicht-Ergänzungsbeleuchtung in Räumen verwendet. Die bekannten Messvorrichtungen umfassen üblicherweise zwei Arten von Sensoren, nämlich infrarotempfind- liche Strahlungssenaoren und Lichtsensoren zur Bestimmung der Helligkeit des einfallenden Lichts. Durch die Verwendung zweier verschiedener Sensorarten weisen die vorbekannten Vorrichtungen eine hohe strukturelle Komplexität und damit auch eine Höhe Störanfälligkeit auf.
Aufgabe der vorliegenden Erfindung ist es, eine neuartige, verein- fachte Vorrichtung zur Bestimmung der Farbtemperatur, er Hellig- keit und des IR-Anteils von Tageslicht anzugeben.
Die Lösung dieser Aufgabe wird erfindungsgemäss durch de Merkmale der unabhängigen Ansprüche ermöglicht.
Die abhängigen Ansprüche definieren vorteilhafte Ausgestaltungen der Erfindung.
Der vorliegenden Erfindung liegt die Erkenntnis zugrunde, dass die Farbtemperatur von Tageslicht sowie dessen IR-Anteil mit für die Ansteuerung von Beachattungsanlagen, Beleuchtungsanlagen zur Simulation von Tageslicht in Räumen und dergleichen hinreichender Genauigkeit auch über die Helligkeit des einfallenden Lichtes und den Sonnenwinkel (Winkel über dem Horizont) bestimmt werden kann, wobei der Sonnenwinkel in Abhängigkeit von der Zeit einer ersten in einer Recheneinheit gespeicherten Datenbank entnommen, die Hel- ligkeit mittels eines Sensors gemessen und der dem Sonnenwinkel und der gemessenen Helligkeit entsprechende Farbtemper & turwert einer zweiten in einer Recheneinheit gespeicherten Datenbank entnommen wird.
Aus der ermittelten Parbtemperatur und der
<Desc/Clms Page number 2>
Helligkeit lässt sich die Strahlungsenergie und damit der IR-Anteil des Lichts berechnen. Das der Erfindung zugrunde liegende Messverfahren ist schematisch in Figur 1 dargestellt.
Die erfindungsgemässe Vorrichtung zur Bestimmung der Farbtemperatur, der Helligkeit und des IR-Anteils von Tageslicht umfasst mindestens einen Helligkeitssensor. eine Vorrichtung zur Messung der Zeit sowie eine Recheneinheit, die die Farbtemperatur und den IR-Anteil in Abhängigkeit von der gemessenen Helligkeit und der Zeit berechnet und den berechneten Farbtemperaturwert, den IR-Wert sowie den gemessenen Helligkeitswert ausgibt.
Die Recheneinheit greift auf Datenbanken zurück, in denen einerseits der Sonnenwinkel als Funktion der Zeit und andererseits die Farbtempereratur als Funktion der Helligkeit und der Zeit gespeichert sind. Dabei sind die in den Datenbanken gespeicherten Werte zum Teil theoretische und zum anderen Teil empirische Vierte.
Für die Messung der Helligkeit können handelsübliche sensoren ver-
EMI2.1
Der Anschluss der Helligkeitssensoren an die Rechnereinheit der erfindungsgemässen Vorrichtung erfolgt vorzugsweise über einen Ana- logeingang der Rechnereinheit. Für die Helligkeitemessung können auch mehrere Helligkeitssensoren verwendet werden.
Gemäss einer besonders bevorzugten Ausführungsform der {vorliegenden Erfindung verfügt die Rechnereinheit über eine Systamuhr, so dass auf eine separate Vorrichtung zur Messung der Zeit vernichtet werden kann.
Die mittels der erfindungsgemässen Vorrichtung bestimmte Helligkeit und Farbtemperatur des einfallenden Lichtes werden über analoge oder digitale Ausgänge ausgegeben. Die ausgegebenen Werte können direkt zur Steuerung nachgeschalteter Vorrichtungen, wie beispielsweise Beschattungsanlagen an Gebäuden oder Belecutungs anlagen zur Simulation von Tageslicht in Räumen oder für das Aufrufen von Lichtszenen in Gebäuden verwendet werden.
<Desc / Clms Page number 1>
The present invention relates to a novel device with which the brightness, the IR component and the color temperature of daylight can be determined.
Daylight measuring devices are known in principle and are used, for example, to regulate shading systems on buildings or to control supplementary daylight lighting in rooms. The known measuring devices usually comprise two types of sensors, namely infrared-sensitive radiation sensors and light sensors for determining the brightness of the incident light. Due to the use of two different types of sensors, the previously known devices have a high level of structural complexity and thus also a high susceptibility to malfunction.
The object of the present invention is to provide a novel, simplified device for determining the color temperature, the brightness and the IR component of daylight.
According to the invention, this object is achieved by the features of the independent claims.
The dependent claims define advantageous embodiments of the invention.
The present invention is based on the knowledge that the color temperature of daylight and its IR component with sufficient accuracy for the control of beach lighting systems, lighting systems for simulating daylight in rooms and the like also about the brightness of the incident light and the sun angle (angle above the Horizon) can be determined, the sun angle depending on the time taken from a first database stored in a computing unit, the brightness measured by means of a sensor and the color temperature value corresponding to the sun angle and the measured brightness from a second database stored in a computing unit is removed.
From the determined part temperature and the
<Desc / Clms Page number 2>
Brightness can be used to calculate the radiation energy and thus the IR portion of the light. The measurement method on which the invention is based is shown schematically in FIG.
The device according to the invention for determining the color temperature, the brightness and the IR component of daylight comprises at least one brightness sensor. a device for measuring the time and a computing unit that calculates the color temperature and the IR component as a function of the measured brightness and time and outputs the calculated color temperature value, the IR value and the measured brightness value.
The computing unit uses databases in which the sun angle as a function of time and the color temperature as a function of brightness and time are stored. The values stored in the databases are partly theoretical and partly empirical fourths.
Commercially available sensors can be used to measure the brightness.
EMI2.1
The brightness sensors are preferably connected to the computer unit of the device according to the invention via an analog input of the computer unit. Several brightness sensors can also be used for the brightness measurement.
According to a particularly preferred embodiment of the present invention, the computer unit has a system clock, so that a separate device for measuring the time can be destroyed.
The brightness and color temperature of the incident light determined by means of the device according to the invention are output via analog or digital outputs. The output values can be used directly to control downstream devices, such as shading systems on buildings or lighting systems for simulating daylight in rooms or for calling up light scenes in buildings.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29804139U DE29804139U1 (en) | 1998-03-09 | 1998-03-09 | Device for determining the color temperature, the IR component and the brightness of daylight |
Publications (1)
Publication Number | Publication Date |
---|---|
AT3459U1 true AT3459U1 (en) | 2000-03-27 |
Family
ID=8053829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT0015499U AT3459U1 (en) | 1998-03-09 | 1999-03-05 | DEVICE FOR DETERMINING THE COLOR TEMPERATURE, THE IR PART AND THE BRIGHTNESS OF DAYLIGHT |
Country Status (2)
Country | Link |
---|---|
AT (1) | AT3459U1 (en) |
DE (2) | DE29804139U1 (en) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1013091B (en) | 1956-01-17 | 1957-08-01 | Bernhard Deltschaft Fa | Measuring device for determining the color temperature of light sources with a continuous spectrum |
DE3813751A1 (en) | 1988-04-23 | 1989-11-09 | Wilhelm Rademacher | ELECTRICAL AND / OR ELECTRONIC CONTROL DEVICE |
DE3833198C2 (en) | 1988-09-30 | 1998-01-15 | Bron Elektronik Ag | Color temperature measuring device |
DE4302442A1 (en) | 1993-01-29 | 1994-08-04 | Fahrzeugklimaregelung Gmbh | Sensor for recording the irradiance and the angle of incidence of solar radiation |
DE4305446B4 (en) | 1993-02-23 | 2004-12-02 | GKR Gesellschaft für Fahrzeugklimaregelung mbH | Circuit arrangement with a light sensor controlling a light-controlled electronic control device in a motor vehicle |
DE4330347C2 (en) | 1993-09-08 | 1998-04-09 | Leica Lasertechnik | Use of a device for the selection and detection of at least two spectral ranges of a light beam |
DE4434168B4 (en) | 1994-09-24 | 2004-12-30 | Byk-Gardner Gmbh | Device and method for measuring and evaluating spectral radiation and in particular for measuring and evaluating color properties |
-
1998
- 1998-03-09 DE DE29804139U patent/DE29804139U1/en not_active Expired - Lifetime
-
1999
- 1999-03-05 AT AT0015499U patent/AT3459U1/en not_active IP Right Cessation
- 1999-03-05 DE DE19909629A patent/DE19909629C2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE19909629A1 (en) | 1999-09-30 |
DE19909629C2 (en) | 2002-05-02 |
DE29804139U1 (en) | 1998-10-22 |
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