CN110730549A - Indoor lighting design method - Google Patents
Indoor lighting design method Download PDFInfo
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- CN110730549A CN110730549A CN201910969682.XA CN201910969682A CN110730549A CN 110730549 A CN110730549 A CN 110730549A CN 201910969682 A CN201910969682 A CN 201910969682A CN 110730549 A CN110730549 A CN 110730549A
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- 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
Abstract
The invention discloses an indoor illumination design method, wherein the condition of lamp source attenuation is not considered when the illumination design is carried out by a conventional illumination calculation method, but the actual indoor illumination value is reduced due to the lamp source attenuation along with the increase of the service time of a lamp and is inconsistent with the initially calculated illumination value. The method of the invention establishes the lamp attenuation correction coefficient K (t) of the lamp changing along with the use time by measuring the lamp source attenuation condition of the lamp. Then, using the existing illumination analysis software to perform illumination simulation calculation to obtain an illumination value E (0) in the room at the moment; finally, the lamp source attenuation occurs after the lamp is used, the indoor illuminance condition can be corrected by using a lamp attenuation correction coefficient k (t), and the indoor actual illuminance value E (t) during the lighting of the lamp after the time t can be calculated by using the following formula, where E (t) is E (0) × k (t). The invention considers the problem of lamp source attenuation and can ensure the requirement on indoor illumination within set time.
Description
Technical Field
The invention relates to an illumination design method for indoor illumination, in particular to an indoor illumination design method considering lamp source attenuation.
Background
The illumination calculation includes the calculation of the effects such as brightness calculation, glare calculation, illuminance calculation, etc., and is the basis of illumination design. Glare calculation can be ignored when indoor lamps are uniformly arranged, and in general conditions, the lighting environment is relatively stable, that is, the reflection characteristics of illuminated surfaces such as a wall surface, a ceiling and a ground surface are not changed, and reflection in most places is mostly diffuse reflection, so that the brightness of illumination depends on the luminous flux projected by incident light on a unit area, that is, the illuminance. Since it is relatively simple to calculate and measure illuminance, the current international and domestic lighting standards mainly use illuminance values as a standard for the amount of illumination on a work surface, so that the lighting calculation is usually mainly referred to as illuminance calculation.
In addition, the luminous flux of the light source represents the luminous capacity of the light source and is an important performance index of the light source. The rated luminous flux of the light source refers to luminous flux output of the light source in a working environment which works under the conditions of rated voltage and rated power and can emit light without restriction. The luminous flux emitted by the light source gradually decreases as the lamp source is attenuated as the time of use increases. Most of light sources have more luminous flux attenuation at the initial stage of ignition, the attenuation is gradually reduced along with the increase of the ignition time, but the attenuation is still in progress, so that the luminous flux emitted by the electric light source lamp after working for a period of time is obviously smaller than the luminous flux emitted at the initial stage of use, the indoor illuminance value is reduced accordingly, and the actual indoor lighting effect is influenced.
When the conventional illuminance calculation method is used for illumination design, the condition of lamp source attenuation is not considered, but as the illumination time increases, the lamp source attenuation causes the actual indoor illuminance value to be reduced, the illumination effect is also deteriorated, and the actual illumination condition may not meet the illumination requirement.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a real-time illumination calculation method considering the illumination attenuation of a lamp source.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention relates to an indoor lighting design method, which comprises the following steps:
an indoor lighting design method is characterized by comprising the following steps:
step one, establishing a light attenuation correction coefficient K (t) of the rated luminous flux of a light source in a lamp changing along with time, wherein the light attenuation correction coefficient K (t) is equal to the ratio of an indoor illumination value when an old lamp is used for illumination and an indoor illumination value when a new lamp is used for illumination, and the illumination value is measured by an illuminometer, and the specific method comprises the following steps:
the method comprises the following steps that firstly, an illuminometer is arranged indoors and faces a lamp holder, and the illuminometer and the lamp holder are fixed, so that the position between the illuminometer and the lamp holder is not changed;
secondly, installing ten lamps with the same model on a lamp holder according to the sequence that the service time is sequentially increased, starting an illuminometer to measure the illumination of the lamps when each lamp is installed, and reading an illumination value of the illuminometer at the current time in real time by connecting the illuminometer with a computer;
the lamps comprise new unused lamps, the service life of one of the ten lamps is longer than the average service life of the lamps, and the service time intervals of the ten lamps are equal;
thirdly, dividing the ten illumination values by the illumination value of the new lamp to obtain ten ratios, and performing interpolation calculation on the ten ratios by using MATLAB software according to the increasing sequence of the use time to obtain a light attenuation correction coefficient K (t) of the rated luminous flux of the light source in the lamp changing along with the time;
selecting lamps with the same model as that in the step one, looking up a table in a building illumination standard table according to the type of the indoor wall to obtain the reflection coefficient of the indoor wall, finally determining the number of the lamps, the arrangement mode of the lamps and the size of the indoor space, and performing illumination simulation calculation by using illumination analysis software to obtain an indoor illumination value E (0) at the moment;
step three, calculating an indoor actual illumination value of the lamp using time t through a formula E (t) ═ E (0) × K (t);
step four, setting the service time, verifying whether the indoor actual illuminance value E (t) of the lamp is greater than the illuminance value required by indoor illumination after the lamp is used for the set service time, and if the indoor actual illuminance value E (t) is greater than the illuminance value required by indoor illumination, enabling the lamp to meet the illumination requirement in the whole service time; and if the indoor actual illumination value E (t) is smaller than the illumination value required by the indoor illumination, the lamps do not meet the illumination requirement, the step two is returned, and the number or the arrangement mode of the lamps is modified until the indoor actual illumination value E (t) is larger than the illumination value required by the indoor illumination.
Compared with the prior art, the invention has the following beneficial effects:
the method can correct the illumination value calculated by the conventional illumination calculation method, can calculate the indoor illumination value after being used for a certain time, checks whether the illumination value at the moment meets the illumination requirement, can be used for solving the illumination design problem involved in the illumination engineering design, and is simple to operate, visible in result, stable and reliable and wide in adaptability.
Detailed Description
The invention will be described in detail below with reference to specific embodiments of how the invention takes into account lamp source attenuation for indoor lighting calculations.
The invention relates to an indoor lighting design method, which comprises the following steps:
step one, establishing a light attenuation correction coefficient K (t) of a rated luminous flux of a light source in a lamp changing along with time, wherein the light attenuation correction coefficient K (t) is equal to the ratio of the luminous flux emitted by the lamp after the lighting use time t to the luminous flux emitted by the lamp at the initial moment, and the illumination is equal to the luminous flux projected by incident light on a unit area, so the light attenuation correction coefficient K (t) is also equal to the ratio of an indoor illumination value when the old lamp is used for lighting to an indoor illumination value when a new lamp is used for lighting, and the illumination value is measured by an illuminometer, and the specific method comprises the following steps:
the method comprises the following steps that firstly, an illuminometer is arranged indoors and faces a lamp holder, and the illuminometer and the lamp holder are fixed, so that the positions of the illuminometer and the lamp holder are not changed, and the difference of illuminance values of different indoor positions is avoided;
secondly, installing ten lamps with the same model on a lamp holder according to the sequence that the service time is sequentially increased, starting an illuminometer to measure the illumination of the lamps when each lamp is installed, and reading an illumination value of the illuminometer at the current time in real time by connecting the illuminometer with a computer;
the lamps comprise new unused lamps, the service life of one of the ten lamps is longer than the average service life of the lamps, and the service time intervals of the ten lamps are equal;
thirdly, dividing the ten illumination values by the illumination value of the new lamp to obtain ten ratios, and performing interpolation calculation on the ten ratios by using MATLAB software according to the increasing sequence of the use time to obtain a light attenuation correction coefficient K (t) of the rated luminous flux of the light source in the lamp changing along with the time;
selecting lamps with the same model as that in the step one, looking up a table in a building illumination standard table according to the type of the indoor wall to obtain the reflection coefficient of the indoor wall, finally determining the number of the lamps, the arrangement mode of the lamps and the size of the indoor space, and performing illumination simulation calculation by using the existing illumination analysis software (such as DIALux illumination analysis software) to obtain an indoor illumination value E (0) at the moment;
and step three, the illumination value in the room is reduced by considering the attenuation of the lamp source. Therefore, the actual indoor illuminance value E (t) is lower than the indoor illuminance value E (0) at the initial stage of the lamp usage. The indoor actual illuminance value E (t) of the luminaire using time t may be calculated using the following formula, E (t) ═ E (0) × k (t);
step four, setting the service time, verifying whether the indoor actual illuminance value E (t) of the lamp is greater than the illuminance value required by indoor illumination after the lamp is used for the set service time, and if the indoor actual illuminance value E (t) is greater than the illuminance value required by indoor illumination, enabling the lamp to meet the illumination requirement in the whole service time; and if the indoor actual illumination value E (t) is smaller than the illumination value required by the indoor illumination, the lamps do not meet the illumination requirement, the step two is returned, and the number or the arrangement mode of the lamps is modified until the indoor actual illumination value E (t) is larger than the illumination value required by the indoor illumination. Therefore, the calculation result of the final illumination calculation is ensured to meet the illumination requirement in the use period.
Claims (1)
1. An indoor lighting design method is characterized by comprising the following steps:
step one, establishing a light attenuation correction coefficient K (t) of the change of rated luminous flux of a light source in the illumination of a lamp along with time, wherein the light attenuation correction coefficient K (t) is equal to the ratio of an indoor illumination value when an old lamp is used for illumination to an indoor illumination value when a new lamp is used for illumination, and the illumination value is measured by using an illuminometer, and the specific method comprises the following steps:
the method comprises the following steps that firstly, an illuminometer is arranged indoors and faces a lamp holder, and the illuminometer and the lamp holder are fixed, so that the position between the illuminometer and the lamp holder is not changed;
secondly, installing ten lamps with the same model on a lamp holder according to the sequence that the service time is sequentially increased, starting an illuminometer to measure the illumination of the lamps when each lamp is installed, and reading an illumination value of the illuminometer at the current time in real time by connecting the illuminometer with a computer;
the lamps comprise new unused lamps, the service life of one of the ten lamps is longer than the average service life of the lamps, and the service time intervals of the ten lamps are equal;
thirdly, dividing the ten illumination values by the illumination value of the new lamp to obtain ten ratios, and performing interpolation calculation on the ten ratios by using MATLAB software according to the increasing sequence of the use time to obtain a light attenuation correction coefficient K (t) of the rated luminous flux of the light source in the lamp changing along with the time;
selecting lamps with the same model as that in the step one, looking up a table in a building illumination standard table according to the type of the indoor wall to obtain the reflection coefficient of the indoor wall, finally determining the number of the lamps, the arrangement mode of the lamps and the size of the indoor space, and performing illumination simulation calculation by using illumination analysis software to obtain an indoor illumination value E (0) at the moment;
step three, calculating an indoor actual illumination value of the lamp using time t through a formula E (t) ═ E (0) × K (t);
step four, setting the service time, verifying whether the indoor actual illuminance value E (t) of the lamp is greater than the illuminance value required by indoor illumination after the lamp is used for the set service time, and if the indoor actual illuminance value E (t) is greater than the illuminance value required by indoor illumination, enabling the lamp to meet the illumination requirement in the whole service time; and if the indoor actual illumination value E (t) is smaller than the illumination value required by the indoor illumination, the lamps do not meet the illumination requirement, the step two is returned, and the number or the arrangement mode of the lamps is modified until the indoor actual illumination value E (t) is larger than the illumination value required by the indoor illumination.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111486370A (en) * | 2020-04-10 | 2020-08-04 | 中山市果度装饰工程有限公司 | Architectural lighting design method and device |
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