专利摘要:
The present invention relates to a method for controlling a lighting arrangement, in particular a lighting arrangement (100) for illuminating a goods display area (140), comprising at least the following steps: - providing the lighting arrangement (100); - providing a pattern (120); Providing a measuring arrangement (110) for measuring color changes of the pattern (120) due to the light effects by the illumination arrangement (100) in the area to be illuminated by the illumination device (100), comprising a sensor arrangement suitable for color change of the pattern (110) 120); Arranging the pattern (120) such that the pattern (120) is exposed to the light of the illumination assembly (100); - determining the color change of the pattern (120) by the sensor assembly after exposing the pattern (120) to the light of the illumination assembly (100) for a predetermined duration; - Controlling the illumination arrangement (100) as a function of the determined by the measuring arrangement (110) color change of the pattern (120). The invention further relates to an arrangement for carrying out the method according to the invention.
公开号:AT14278U1
申请号:TGM49/2014U
申请日:2014-02-04
公开日:2015-07-15
发明作者:Anja Frohnapfel
申请人:Zumtobel Lighting Gmbh;
IPC主号:
专利说明:

description
METHOD FOR CONTROLLING A LIGHTING ARRANGEMENT
1. FIELD OF THE INVENTION
The present invention relates to a method for controlling a Beleuchtungsan¬ordnung, in particular a lighting arrangement for illuminating a Warenpräsentati¬onsfläche, and an arrangement for carrying out such a method.
2. BACKGROUND
It is known in the art that products or articles which are irradiated with light (e.g., artificial lighting or the sun) are subject to a certain aging process. Often, the color of the products changes adversely, dadiese tend to a more or less pronounced fading depending on the material.
A characteristic which classifies the inclination of materials (for example of fabrics and textiles) with regard to a change in color, in particular to a fading, on account of a light effect, is the so-called light fastness. In this regard, in particular the so-called "blue scale" according to DIN 53952 is used, with which the light fastness (ie the color constancy) of a substance or a material can be quantified.
The measuring method in the context of DIN 53952 consists in a comparison of a sample with a scale of eight blue wool stripes (so-called "wool scale"), each having a different predefined light fastness. Both the sample and the wool strips are exposed to light radiation. The exposed sample is then compared to a (covered) reference portion of the wool strips. The light fastness then indicated is the level at which a "clear" or "just recognizable" difference is given. In this case, DIN 53952 scales between a light fastness 1 ("very low") to a light fastness 8 ("excellent").
In practice, it has been found that goods or products exhibited on an illuminated surface (in particular a merchandise presentation area) have in some cases very good lightfastness values (in particular some kinds of textiles) and can therefore be considerably impaired by illumination.
The present invention now has the object to provide a method for driving a lighting arrangement, with which it can be prevented that the exhibited goods (especially textiles) to bleach too much, even if they have a low light fastness value.
These and other objects, which will become apparent upon reading the following description or which may be recognized by those skilled in the art, are achieved by the subject matter of the independent claims. The dependent claims further form the central idea of the present invention in a particularly advantageous manner.
3. DETAILED DESCRIPTION OF THE INVENTION
A method according to the invention for controlling a lighting arrangement, in particular a lighting arrangement for illuminating a goods display area, comprises at least the following steps: [0009] providing the lighting arrangement; - Providing a pattern; [0011] providing a measuring arrangement for measuring color changes of the pattern due to the effects of light by the illumination arrangement in the area to be illuminated by the illumination device, comprising a sensor arrangement which is suitable for determining a color change of the pattern; Arranging the pattern such that the pattern is exposed to the light of the illumination arrangement; Determining the color change of the pattern by the sensor arrangement, after the
Pattern was exposed to the light of the illumination arrangement of a predetermined duration; - Controlling the illumination arrangement as a function of the determined by the measuring arrangement color change of the pattern.
The sensor arrangement comprises at least one suitable color sensor (spielsweise: a LAB color sensor, true color sensor or RGB sensors).
Preferably, the sensor arrangement comprises at least one memory and computer unit with which the values / results of a color measurement can be stored. This makes it possible at a first time to carry out a first color measurement, for example of the not yet illuminated pattern, to compare it with the values / results of a later second colorimetry of the pattern, in order thereby to have a color change (in particular a color location distance) in the period between the first and second colorimetry.
Alternatively or additionally, it is also possible to determine the illumination damage such that the pattern (for example a pattern with one or more individual areas) is at least partially covered and only a part of the pattern is exposed to the illumination, so that in the covered area no or no significant color change occurs. This (unaltered) area can then be compared to the area exposed to the illumination, whereby both color measurements (i.e., the color measurement of the covered area and the color measurement of the uncovered area) can be made at one time.
It is also possible, in particular instead of the previously described covering of a part of a pattern, to use a plurality of color-identical patterns, i. E. to illuminate a pattern and to compare this illuminated pattern with another non-illuminated pattern (quasi as a reference pattern / object).
Furthermore, it is possible to use a known or predefined pattern (ie a pattern with known output color values / output color locations). In this case, the output color values / locations of these known or predefined patterns can be stored in the memory and processing unit of the sensor arrangement (or alternatively in the illumination arrangement and / or in a central processing unit, etc.) as reference values. This approach has the advantage that only one color measurement must be made, namely a color measurement of the illuminated pattern and this color measurement can be compared with the stored (known output color values) in order to determine a color change (in particular the color location distance).
Furthermore, it may be advantageous to use a standardized pattern, in particular a Textil¬muster or a standardized paper pattern, for example, to be able to generally determine the Illumination damage the lighting arrangement and a control of the lighting arrangement with regard to a color change of the standardi ¬sierten pattern to be able to make. Preferably, a standardized Blaumus¬ter according to DIN 53952 is used for this purpose.
Advantageously, the determined color change is given as a light fastness value according to the blue scale according to DIN 53952, for which purpose the color values of the wool scale are preferably stored as reference values, preferably in the storage and computing unit of the sensor unit (or alternatively in the illumination arrangement and / or in a central computer unit, etc.). Alternatively or additionally-in particular if the color values of the wool scale are not stored as reference values-the illumination damage can be determined in such a way that the standardized blue pattern is at least partially covered and only a part of the blue pattern is exposed to the illumination, so that in the covered area no or no significant color change occurs and these (unaltered) areas with the areas exposed to the lighting can be detected and compared. Such a procedure using a standardized blue pattern has the advantage that the light fastness values determined in this way are comparable and thus can be taken into account, for example, in the design and planning of illuminations.
As already stated above, DIN 53952 defines light fastness values in a scale between a light fastness value of 1 ("very low") and a light fastness value of 8 ("excellent").
Alternatively, in particular with regard to the use of a known or standardized pattern, it is also possible to use as pattern a textile pattern which corresponds to a textile arranged on a goods display surface. If, for example, denim fabrics are exhibited on a merchandise display area, such a denim fabric can be attached to the carrier arrangement of the measuring arrangement and a color change can be determined over a specific period of time. This has the advantage that the effects of lighting can be detected directly on the issued and illuminated textiles and thus can be based on a control of the lighting arrangement. Again, there is the possibility to determine the color change by two color measurements at different times or to cover part of the textile pattern and to compare the covered (unaltered) area with the area exposed to the illumination, both color measurements (ie the color measurement of the covered area and the color measurement of the uncovered area) can be made at one time.
Advantageously, a carrier arrangement is provided in the area to be illuminated by the illumination device for receiving the pattern, wherein the carrier arrangement is preferably provided on the measuring arrangement, wherein the step for receiving the pattern further comprises receiving the pattern on the carrier arrangement.
In this case, a carrier arrangement can be understood to mean essentially any arrangement which is suitable for receiving a pattern (in particular a textile pattern) and has corresponding pinching, arresting or fixing means with which the pattern can be fastened to the carrier arrangement.
Advantageously, the control of the illumination arrangement comprises adjusting the light emission angle and / or the light intensity and / or the light distribution. Basie¬rend on the determined color change of the pattern (or the light fastness value), the lighting arrangement can be controlled accordingly. If, for example, it is ascertained that the determined color change exceeds a predetermined reference value within a predetermined period of time, the light flux density (light intensity) of the light emitted onto the illuminated surface can be reduced (for example by a change in the light emission angle or by a reduction in the light intensity) ty). Thus, for example, very light-sensitive goods (in particular certain textiles) can be protected against fading.
Preferably, the illumination arrangement comprises a plurality of illumination devices which can be combined or arranged and controlled individually.
In a first alternative, the determined color change (or the lightfastness value) of the pattern is transmitted from the measuring arrangement to the illumination arrangement, in which case a control unit of the illumination arrangement activates the illumination as a function of the determined color change.
In a second alternative, the ascertained color change of the pattern can be transmitted from the measuring arrangement to a central computer unit, wherein the central computer unit controls the illumination of the illumination arrangement as a function of the colorant determined.
Change (or the determined light fastness value) drives.
The first alternative is preferably used when the Beleuchtungsanordnnung is essentially constructed of a lighting device. The second alternative, on the other hand, is preferably used when the lighting arrangement comprises a plurality of (possibly distributed in space) lighting devices.
As already noted, the illumination arrangement is preferably controlled in such a way that the light flux density of the light directed to the goods is reduced if the average color change exceeds a predetermined reference value. The light flux density can be effected in particular by the light intensity or by the light distribution of the light emitted by the illumination arrangement.
Preferably, the lighting arrangement, the measuring arrangement and / or the central computer unit each comprise at least one interface for wireless communication, with which the determined color change can be transmitted wirelessly. A communication may take place between at least two of the lighting arrangement, the measuring arrangement and the central computer unit or between at least one of the aforementioned Vorrich¬tungen and an external device, also having an interface for wireless Kom¬munikation. As a result, when installing the measuring arrangement on a surface, in particular on a goods display area, no cables or the like must be laid, so that the measuring arrangement is ready for use quickly and can be flexibly used on the respective surfaces. By way of an external device (for example a smartphone preferably with a corresponding app), it is possible, for example, to read / receive data from the system or to send it to it.
Preferably, the illumination arrangement comprises light-emitting diode modules, since these can be controlled simply relative to a corresponding control unit with a comparatively high accuracy.
The invention further relates to an arrangement for carrying out a method for controlling a lighting arrangement, the arrangement comprising: a lighting arrangement, preferably with at least one light-emitting diode module; A measuring arrangement for measuring color changes of a pattern due to the light effects by the illumination arrangement in the area to be illuminated by the illumination device, comprising a sensor arrangement which is suitable for determining a color change of the pattern; [0037] A control unit for controlling the illumination arrangement as a function of the color change of the pattern determined by the measuring arrangement.
4. DESCRIPTION OF A PREFERRED EMBODIMENT
The following is a detailed description of the single Figure 1 is given, which shows a schematic view of an inventive arrangement for carrying out a erfin¬ to the invention method for controlling a lighting arrangement.
FIG. 1 shows a schematic view of an arrangement according to the invention for carrying out a method according to the invention. The arrangement according to the invention comprises a lighting arrangement 100, preferably with at least one light-emitting diode module, a measuring arrangement 110 for measuring color changes of a textile pattern 120, which is preferably fixed in a carrier arrangement 130 of the measuring arrangement 110.
In this case, the measuring arrangement 110 is arranged on a goods presentation surface 140 in such a way that the textile pattern 120 is exposed to the light of the illumination 100. The textile pattern 120 is preferably taken from a textile product 150 disposed on the goods presentation surface 140. Alternatively or additionally, it is also possible to use a standardized pattern (for example a standardized wool pattern), in which case the standardized pattern can be partially covered, so that this covered (unchanged)
Range can be used in a comparison of the color change as or additionally as a reference range.
To determine the color change of the textile pattern 120 is at a first time with a arranged in the measuring arrangement 110 sensor (not shown, beispiels¬weise an arrangement with at least one color sensors, such as a LAB color sensor, a True Color sensor or a RGB Sensor), a first color value is measured and stored in a memory and arithmetic unit (not shown) of the measuring arrangement 110.
After a predetermined time interval, for example after one day, a second color measurement is performed on the textile pattern 120 so that from the two color measurements a color change within the measurement interval can be determined by comparing both measurements. Alternatively, one of the other previously described methods or comparable methods may also be performed.
If the determined color change exceeds a predefined reference value / limit value, the illumination arrangement 100 is preferably controlled in such a way that the light intensity with which the illumination arrangement 100 irradiates the goods presentation area 140 is set (for example reduced).
The color change can also be specified as a so-called light fastness value according to the blue scale according to DIN 53952, for which purpose the necessary color values of the wool scale indicated in DIN 53952 are preferably stored in the measuring arrangement 110. Alternatively or additionally, the wool scale can also be partially covered, so that this covered and thus unchanged area can be used as comparison or reference value. The determined color change over the measurement period is electronically compared with the stored or covered area of the wool scale, so that a corresponding lightfastness value according to the blue scale according to DIN 53952 can be indicated.
A control of the illumination arrangement 100 can be achieved, for example, by a wireless communication between the measuring arrangement 110 and the illumination arrangement 100 or else by a central computer unit (not shown) to which the value of the determined color change or the light fastness value (preferably wireless) is transmitted.
The central computer unit can, for example, for the control of various lighting arrangements, also rely on measurements from a plurality of measuring arrangements. For example, the control of a plurality of illumination arrangements can take place in such a way that a plurality of measurements from different measurement arrangements at different locations are taken as the basis, and the worst lightfastness value or the highest color change is used to control the illumination arrangements. Alternatively, multiple measurement arrangements may be associated with a lighting arrangement or group of lighting arrangements. A control of the Beleuchtungsanordnun¬gen can be done individually or in groups.
The invention is not limited to the preceding embodiment as long as it is encompassed by the subject of the following claims. Furthermore, the previous Aus¬führungsalternativen can be combined with and with each other in any way.
权利要求:
Claims (19)
[1]
Claims 1. A method for controlling a lighting arrangement, in particular a lighting arrangement (100) for illuminating a goods display area (140), comprising at least the following steps: - providing the lighting arrangement (100); - providing a pattern (120); Providing a measurement arrangement (110) for measuring color changes of the pattern (120) due to the light effects by the illumination arrangement (100) in the area to be illuminated by the illumination device (100), comprising a sensor arrangement which is suitable for changing the color of the pattern (120) to investigate; - arranging the pattern (120) such that the pattern (120) is exposed to the light of the illumination arrangement (100); - determining the color change of the pattern (120) by the sensor assembly after exposing the pattern (120) to the light of the illumination assembly (100) for a predetermined duration; - Controlling the illumination arrangement (100) as a function of the determined by the Messanordnnung (110) color change of the pattern (120).
[2]
2. The method of claim 1, wherein a color change of the pattern is determined by a comparison of color values of a first color measurement at a first time with a color measurement at a second time, wherein the color values of the first color measurement for this purpose are preferably stored in a computer and memory unit.
[3]
3. The method of claim 1 or 2, wherein a color change of the pattern ermit¬telt is that the pattern is at least partially covered and thus only a part of the pattern is exposed to the illumination and these two areas are compared with each other, preferably by color measurements at a time.
[4]
4. The method according to any one of the preceding claims, wherein a color change of the pattern is determined such that the illuminated pattern is compared with a same, non-illuminated pattern, preferably by color measurements at a time point.
[5]
5. Method according to one of the preceding claims, wherein a predefined pattern with known output color values is used and the output color values are stored as electro-stored reference values, and that a color change of the predefined pattern takes place by a comparison of the color values of the illuminated pattern with the reference values.
[6]
6. The method according to any one of the preceding claims, further comprising a carrier assembly (130) in the illumination device (100) to be illuminated area for receiving the pattern (120) is provided, wherein the carrier assembly (130) vorzugs¬weise on the Measuring arrangement (110) is provided, wherein the step for receiving the pattern (120) further encompasses the recording of the pattern (120) on the carrier assembly (130).
[7]
A method according to any preceding claim, wherein the pattern is a textile pattern (120) of the textile (150) disposed on a merchandise display surface (140).
[8]
8. The method according to any one of the preceding claims, wherein the pattern (120) a stan¬dardisiertes pattern, in particular a standardized textile pattern or a standardized paper pattern, is.
[9]
The method of claim 8, wherein the pattern (120) is a standardized blue pattern to DIN 53952 for measuring a lightfastness.
[10]
10. The method according to any one of the preceding claims, wherein the determined Farbverände¬rung is given as light fastness value according to the blue scale according to DIN 53952 and here the color values of the wool scale in the sensor unit, the lighting device and / or a central computer unit are stored.
[11]
11. The method according to any one of the preceding claims, wherein a driving the Beleuch¬tungsanungsanordnung (100) comprises adjusting the light emission angle and / or the Lichtin¬tensität and / or the light distribution.
[12]
12. The method according to any one of the preceding claims, wherein the illumination arrangement (100) comprises a plurality of illumination devices.
[13]
13. The method according to any one of the preceding claims, wherein the determined Farbverände¬rung of the pattern (120) from the measuring device (110) to the illumination assembly (100) is transmitted and a control unit of the illumination arrangement (100) the illumination in dependence of the determined Color change activates.
[14]
14. The method according to any one of the preceding claims, wherein the determined Farbverände¬rung of the pattern (120) from the measuring arrangement (110) is transmitted to a central computer unit and the central computer unit controls the illumination of the Beleuchtungsanordnnung (100) in response to the detected color change ,
[15]
15. The method according to any one of the preceding claims, wherein the luminous flux density of the light emitted to the illuminated surface (140) is reduced if the determined color change is above a certain reference value.
[16]
16. The method according to any one of the preceding claims, wherein the illumination arrangement (100), the measuring arrangement (110) and / or the central computer unit each having at least one interface for wireless communication, with a detected color change is transmitted.
[17]
17. The method according to any one of the preceding claims, wherein the illumination arrangement (100) comprises at least one light-emitting diode module.
[18]
18. Arrangement for carrying out a method according to one of claims 1 to 17, comprising: - a lighting arrangement (100), preferably with at least one light-emitting diode module; a measuring arrangement (110) for measuring color changes of a pattern (120) due to the light effects by the illumination arrangement (100) in the area to be illuminated by the illumination device (100), comprising a sensor arrangement which is suitable for changing the color of the pattern ( 120); a control unit for controlling the illumination arrangement (100) as a function of the color change of the pattern (120) determined by the measuring arrangement (110).
[19]
19. Arrangement according to claim 18, further comprising a carrier arrangement (130) for receiving the pattern (120), wherein the carrier arrangement (130) is provided such that the pattern (120) can be exposed to the light of the illumination arrangement (100) the carrier arrangement (130) is preferably provided on the measuring arrangement (110). For this 1 sheet drawings
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法律状态:
2017-10-15| MM01| Lapse because of not paying annual fees|Effective date: 20170228 |
优先权:
申请号 | 申请日 | 专利标题
DE102014201124.8A|DE102014201124A1|2014-01-22|2014-01-22|Method for controlling a lighting arrangement|
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