CN116744507A - Indoor illumination method and system for realizing natural illumination characteristics - Google Patents

Indoor illumination method and system for realizing natural illumination characteristics Download PDF

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Publication number
CN116744507A
CN116744507A CN202210393631.9A CN202210393631A CN116744507A CN 116744507 A CN116744507 A CN 116744507A CN 202210393631 A CN202210393631 A CN 202210393631A CN 116744507 A CN116744507 A CN 116744507A
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China
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sky
illumination
brightness distribution
brightness
model
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冯昭扬
史毅华
梁斌豪
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Guangzhou Shiliang Lighting Technology Co ltd
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Guangzhou Shiliang Lighting Technology Co ltd
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Priority to PCT/CN2022/141899 priority Critical patent/WO2023197677A1/en
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    • 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
    • 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
    • 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 application provides an indoor illumination method for realizing natural illumination characteristics, which comprises the following steps of 1) obtaining a sky model, and horizontally projecting illumination brightness distribution formed by the sky model to obtain planar brightness distribution; 2) The illumination mode is controlled to keep the illumination brightness distribution of the ceiling surface consistent with the plane brightness distribution, so that the ideal vertical/horizontal illumination ratio of indoor space illumination can be realized. The application controls the illumination brightness distribution of the ceiling surface, thereby realizing the natural illumination characteristic of the indoor space illumination distribution.

Description

Indoor illumination method and system for realizing natural illumination characteristics
Technical Field
The application relates to a control method and a system for indoor illumination, in particular to a control method and a system for indoor illumination for realizing natural illumination characteristics.
Background
For millions of years, human beings are in daytime and nighttime, and life activities are closely related to the natural law of sunset. The outdoor natural illumination brings complete and rich visual information to human beings, and plays roles in maintaining the rhythm of the driver's birthday, keeping the normal immune function, developing eyeballs, promoting the attention repair, and the positive emotion and psychological aspects through physiological and psychological mechanisms. However, 90% of the day time of modern people may be spent indoors, but indoor lighting only focuses on the working surface, the light space distribution lacks overall layout consideration, and is far from the natural illumination environment where humans evolve and adapt millions of years. The overall brightness layout of the space is performed by referring to the outdoor natural illumination brightness distribution characteristics, so that the indoor illumination and the outdoor natural illumination environment are reasonably related, and the aim is to improve the human-caused value of the indoor illumination.
European patent EP3434074A1, published as 2019, 1-30, discloses a lighting system which can automatically debug lighting system combinations of lighting in one or more target areas, select which lighting groups to light in different areas, light those lighting in one area to form a preset spatial distribution, and control illuminance and color temperature of the target areas by a central control system, a position sensor group and a lighting group which are fixed but can be freely combined to a certain extent, according to the crowd dynamics of the target areas collected in real time, the position change of business or office facilities or hardware, and also can combine real-time information with preset data to send related instructions. The patent is not capable of adjusting and automatically adjusting the position of the lighting fixtures in the place such as shops and offices, and is not capable of improving the shopping interest of customers by sensing the dynamic state of the customers to create lighting atmospheres with space, brightness and color temperature changes in the areas such as shops, because the lighting fixtures are usually controlled to be turned on and off, brightness and color temperature once the lighting hardware is designed and arranged according to the fixed positions. The patent is a lighting system which is composed of a large number of freely-grouped lamps, is distributed in all target areas, can be automatically or controllably controlled by a central control system to control on-off, dimming and color mixing independently or in groups, can receive real-time crowd dynamic information formed by signals sent by position sensors or crowd handheld electronic equipment to regulate and control in real time, and is characterized in that a lighting function designed according to the current commercial or office lighting standard is provided for a flexibly-changed space according to real-time related information.
Chinese patent CN109246911a, publication No. 2019, 1-18, discloses a home lighting system with outdoor illumination simulation, which comprises a processor, a lighting device, a brightness detection module for detecting brightness of outdoor light, a first control module for controlling the lighting device to work, and a sensor for detecting a human body signal, wherein the brightness detection module, the first control module and the sensor are all connected with the processor; when a human body signal is detected and the brightness of outdoor light is less than the preset brightness lower limit, the processor drives the first control module to start corresponding lighting equipment, the lighting equipment comprises a plurality of simulated outdoor illumination lamp groups, and each simulated outdoor illumination lamp group emits light with multiple wavelengths; each simulated outdoor light string included 3 incandescent lamps, 2 halogen lamps, and 1 LED lamp. The problem to be solved by the patent is that household illumination can simulate outdoor illumination, so that visual fatigue can be reduced to the greatest extent, and myopia can be prevented; the switch of the lighting equipment can be controlled according to the brightness of outdoor light, so that the lighting system is more intelligent, energy-saving and environment-friendly, the eye time of a user can be intelligently controlled, myopia is prevented or the myopia deepens, the problem of overall brightness space distribution in a designated space is not involved, and the problem of natural illumination is not involved in the illumination distribution of a control room.
Disclosure of Invention
Based on the above problems existing in the prior art, the present application provides an indoor illumination method and system for realizing natural illumination features, which aims to realize natural illumination features by indoor space illumination distribution.
One of the purposes of the present application is to provide an indoor illumination method for realizing natural illumination characteristics, comprising the following steps:
and controlling the illumination mode to ensure that the fitting error of the illumination brightness distribution of the ceiling surface and the target brightness distribution is within 5%, wherein the target brightness distribution is consistent with the plane brightness distribution obtained by horizontally projecting the illumination brightness distribution formed by the sky model capable of reflecting the sky brightness distribution.
Further, before controlling the lighting mode, the method further comprises: and obtaining a sky model capable of reflecting the sky brightness distribution, and horizontally projecting the illumination brightness distribution formed by the sky model to obtain the plane brightness distribution.
Further, the method further comprises the steps of obtaining a wall top highest brightness value k obtained after controlling the illumination mode, and controlling the second illumination mode to enable the wall brightness distribution to meet the following conditions: the brightness value of the wall top is k-5 k, and the wall brightness is gradually reduced from the wall top to the wall bottom.
Further, the sky model includes any one of 15 types of relative sky brightness distribution models recorded in CIE general standard sky or any one of various types of sky brightness distribution models, sky brightness models, sky models, full-weather models and sky radiation brightness models recorded in non-patent literature 'study of sky brightness distribution [ D ] by using an information method, what spring, chongqing university doctor paper, chinese doctor academic paper full-text database information science and technology edition, 6 th 2009, I138-69'.
Further, the fitting error is the average value of the sum of squares of the difference values of the actual relative brightness values and the target relative brightness values of the characteristic points, and the characteristic points are not less than 10 and comprise the center of the ceiling surface and the boundary characteristic points.
Further, before the step of obtaining the sky model capable of reflecting the sky brightness distribution, the step of obtaining the sky information is further included, and the step of obtaining the sky model is specifically that the corresponding sky model is obtained by obtaining the sky information.
Further, the sky information comprises a sky type or real-time sky brightness distribution, wherein when the sky information is a specific sky type, the acquired sky model is a sky brightness model corresponding to the specific sky type; when the sky information is real-time sky brightness distribution, fitting characteristic points in the real-time sky brightness distribution with respect to the existing sky model by using a least square method to obtain a sky model closest to a fitting result.
Further, the real-time sky brightness distribution is obtained by a sky brightness scanner.
Further, the lighting control mode is to control the fitting error of a round area which takes the center of the ceiling surface as the center and is inscribed with the short side of the ceiling surface and the target brightness distribution to be within 5%; the area of the ceiling surface outside the circle is controlled as follows: 1) The average illumination brightness is consistent with the illumination brightness of the round boundary; 2) The illumination brightness of the round boundary is used as a reference to form a darkly-darkened brightness distribution to the ceiling boundary layout, and the illumination brightness of the round boundary to the ceiling boundary area is kept to be more than 0.7; 3) The brightness distribution gradually becomes brighter towards the ceiling boundary layout by taking the illumination brightness of the round boundary as the reference, and the illumination brightness of the round boundary to the ceiling boundary area keeps the uniformity more than 0.7
Further, the brightness gradient of the wall surface is reduced by 10 to 15 percent from top to bottom per 10 percent of the total length distance of the wall surface.
Further, the illumination mode comprises at least one of projecting light rays onto the ceiling surface with diffuse reflection characteristics according to target brightness distribution by adopting a light-emitting device, arranging the target brightness distribution of the ceiling surface by adopting a light-emitting ceiling, and arranging the target brightness distribution in the ceiling surface by adopting at least one area light source respectively.
Further, the second illumination mode includes at least one of projecting light rays onto the wall surface having the diffuse reflection characteristic according to the target brightness distribution by using the light emitting device, and arranging the target brightness distribution in the wall surface by using at least one surface light source respectively.
Another object of the present application is to provide an indoor lighting control system for realizing natural illumination characteristics, comprising:
the storage module is used for storing different plane illumination brightness distribution, and the plane illumination brightness distribution is obtained by horizontally projecting illumination brightness formed by the sky model;
the control module is used for controlling the illumination mode according to the plane brightness distribution which is called from the storage module, and the control module is electrically connected with the storage module;
and the lighting module is used for realizing illumination brightness distribution of the ceiling surface and is electrically connected with the control module.
Further, the system further comprises a sky information acquisition module, a user acquires the sky type or the real-time sky brightness distribution, and the sky information acquisition module is electrically connected with the storage module.
Further, the system further comprises a second lighting module for realizing illumination brightness distribution of the wall surface, and the second lighting module is electrically connected with the control module.
Under outdoor shade or cloudy days, the vertical illuminance value of 0.3-5000 lux, which is required by human body and is normally operated by a physiological mechanism related to illumination, can be obtained while strong direct sunlight is avoided. The vertical/horizontal illuminance ratio is an index that correlates with the vertical illuminance and reflects the ambient illuminance, where we find that the vertical/horizontal illuminance ratio Ev/Eh of a natural illumination environment that is comfortable outdoors and suitable for human activities is 0.4 to 1, which is just a range of Ev/Eh values at tree shadows or shade, and when the ratio is below the lower limit or above the upper limit, the human eye will feel a noticeable discomfort. Based on the above, the application creatively proposes to control the vertical/horizontal illumination ratio Ev/Eh of the indoor space illumination to be 0.4-1, and more preferably to be 0.5-0.7, namely, the indoor space illumination characteristic is realized as a natural illumination characteristic.
The application creatively discovers that the plane illumination brightness distribution obtained by horizontally projecting the sky model can be directly applied to the control of the indoor ceiling surface illumination brightness distribution, so that the vertical illumination value of indoor illumination can be kept in the normal operation range of a physiological mechanism, and the vertical/horizontal illumination ratio Ev/Eh is kept between 0.4 and 1.
The application also creatively discovers that on the basis of the control method, the ceiling surface is divided into the inner area and the outer area of the inscribed circle according to the shape of the ceiling surface, and the illumination brightness of the outer area of the circle is kept the same as that of the border of the circle, so that the vertical/horizontal illumination ratio Ev/Eh can be further controlled to be more favorable level 0.4-0.8, and the comfort level is obviously improved.
The application also creatively discovers that on the basis of the control method, the illumination distribution characteristics of the wall surface are further considered, a more comfortable natural illumination environment can be reflected, the illumination brightness of the wall top is kept to be 1-5 times of the brightness value generated by the ceiling illumination at the position, and meanwhile, when the gradient from the wall top to the corner is reduced, the illumination of the indoor space can be effectively ensured, and especially the vertical/horizontal illumination ratio Ev/Eh of the position 1.5m higher than the indoor space (namely, the position of eyes in standing in common standard convention) is 0.5-0.7.
Thus, the present application has the following effects with respect to the prior art:
1. the application can control the vertical/horizontal illumination ratio of indoor space illumination to be in a reasonable range of 0.4-1 by controlling the illumination brightness distribution of the ceiling surface, thereby realizing natural illumination characteristics of indoor space illumination distribution.
2. The application can further control the vertical/horizontal illumination ratio to be in a smaller range of 0.4-0.8 by further controlling the illumination brightness distribution of the ceiling surface, thereby obviously improving the comfort level.
3. The application can further control the vertical/horizontal illuminance ratio at the indoor control position of 1.5m to be more reasonable 0.5-0.7 by controlling the illumination brightness distribution of the wall surface, so that the sense organ of human eyes is kept in good consistency under a comfortable natural illumination environment.
Drawings
FIG. 1 shows sky models obtained in examples 1 and 2 of the present application
FIG. 2 is a plane luminance distribution of a sky model horizontal projection according to embodiment 1 of the present application
FIG. 3 is a plane luminance distribution of a sky model horizontal projection according to embodiment 2 of the present application
FIG. 4 is a sky model obtained according to embodiment 3 of the present application
FIG. 5 is a plane luminance distribution of a sky model horizontal projection according to embodiment 3 of the present application
FIG. 6 is a schematic view of a wall brightness gradient according to embodiment 4 of the present application
Detailed Description
Example 1
An indoor lighting method for realizing natural illumination characteristics comprises the following steps:
1) Obtaining a sky model, wherein the model is a type 1 sky in a CIE general standard sky (namely, a overcast sky in GB/T20148-2006, brightness tone changes sharply and is close to zenith and brightness distribution with consistent azimuth angle), and relative brightness values of characteristic points corresponding to every 10 degrees between 0-90 degrees of zenith angles of the brightness distribution of the sky can be respectively: 1. 0.99, 0.97, 0.93, 0.87, 0.79, 0.67, 0.51, 0.5, 0.33, as shown in fig. 1;
2) The illumination brightness formed by the sky model obtained in the step 1) is as followsThe circular surface of the plane is subjected to horizontal projection to obtain plane brightness distribution, and the relative brightness value of the boundary of the circular surface is 0.33 at the moment as shown in fig. 2;
3) In a typical indoor space having a size of 4m×4m×3m (length, width, height), ceiling reflectivity of 70%, wall surface reflectivity of 80%, floor reflectivity of 40%, light is projected onto a ceiling surface having a diffuse reflection characteristic according to the planar luminance distribution obtained in step 2) using a light emitting device.
The control system adopted by the method comprises the following steps: the storage module is used for storing various sky models according to the diameterPlane brightness distribution obtained by horizontal projection of the round surface of the lens; the control module is used for controlling the lighting module to project light rays onto the ceiling surface with the diffuse reflection characteristic according to the planar brightness distribution obtained in the step 2), and the storage module is electrically connected with the control module; the lighting module comprises a light emitting device, and is electrically connected with the control module.
The ratio of the vertical illuminance to the horizontal illuminance at any point in the 1.5m high reference layer of the space is 0.47-1, and the ratio of the vertical illuminance to the horizontal illuminance at the 1.5m central height of the space is 0.54.
Example 2
An indoor lighting method for realizing natural illumination characteristics comprises the following steps:
1) Obtaining a sky model, wherein the model is a type 1 sky in CIE general standard sky (namely standard overcast sky in GB/T20148-2006, brightness tone changes sharply and is close to zenith and brightness distribution with consistent azimuth angle), and relative brightness values of feature points corresponding to every 10 degrees between 0-90 degrees of zenith angles of the brightness distribution of the sky can be respectively: 1. 0.99, 0.97, 0.93, 0.87, 0.79, 0.67, 0.51, 0.5, 0.33, as shown in fig. 1;
2) Performing horizontal projection on illumination brightness formed by the sky model obtained in the step 1) according to a circular surface with the diameter of 4m to obtain planar brightness distribution, wherein the relative brightness value of the boundary of the circular surface is 0.33 as shown in fig. 3;
3) In a typical indoor space having dimensions of 4m×4m×3m (length, width, height), ceiling reflectance of 70%, wall reflectance of 80%, floor reflectance of 40%, a ceiling light-emitting ceiling was used to lay out a ceiling target luminance distribution according to the planar luminance distribution obtained in step 2) and a distribution having a relative luminance value of 0.33 in a region from outside the circular surface to the ceiling boundary in step 2).
The ratio of the vertical illuminance to the horizontal illuminance at any point in the 1.5m high reference layer of the space is 0.45-0.8, and the ratio of the vertical illuminance to the horizontal illuminance at the 1.5m high center of the space is 0.49.
Example 3
An indoor lighting method for realizing natural illumination characteristics comprises the following steps:
1) A sky model is obtained, the model is a 5 th sky (namely the brightness distribution of the sky with uniform brightness in GB/T20148-2006) in the CIE general standard sky, the relative brightness value of the characteristic points corresponding to every 10 DEG between 0 DEG and 90 DEG of the zenith angle of the sky brightness distribution can be 11, as shown in fig. 4;
2) Performing horizontal projection on illumination brightness formed by the sky model obtained in the step 1) according to a circular surface with the diameter of 4m to obtain planar brightness distribution, wherein the relative brightness value of the boundary of the circular surface is 1 as shown in fig. 5;
3) In a typical indoor space with dimensions of 4m×4m×3m (length, width and height), ceiling reflectivity of 70%, wall surface reflectivity of 80% and floor surface reflectivity of 40%, light is projected onto a ceiling surface having a diffuse reflection characteristic by using a light emitting device according to the planar luminance distribution obtained in step 2) and the distribution of relative luminance values of the area from outside the circular surface to the ceiling surface boundary of step 2) of 1.
The ratio of the vertical illuminance to the horizontal illuminance at any point in the 1.5m high reference layer of the space is 0.55-0.8, and the ratio of the vertical illuminance to the horizontal illuminance at the 1.5m high center of the space is 0.59.
Example 4
An indoor lighting method for realizing natural illumination characteristics comprises the following steps:
1) Obtaining a sky model, wherein the model is a type 1 sky in CIE general standard sky (namely standard overcast sky in GB/T20148-2006, brightness tone changes sharply and is close to zenith and brightness distribution with consistent azimuth angle), and relative brightness values of feature points corresponding to every 10 degrees between 0-90 degrees of zenith angles of the brightness distribution of the sky can be respectively: 1. 0.99, 0.97, 0.93, 0.87, 0.79, 0.67, 0.51, 0.5, 0.33;
2) The illumination brightness formed by the sky model obtained in the step 1) is as followsPerforming horizontal projection on the round surface of the plane to obtain plane brightness distribution, wherein the relative brightness value of the boundary of the round surface is 0.33;
3) In a typical indoor space with the dimensions of 4m multiplied by 3m (length, width and height), the ceiling reflectivity of 70%, the wall surface reflectivity of 80% and the ground reflectivity of 40%, adopting a light-emitting device to project light rays onto a ceiling surface with diffuse reflection characteristics according to the planar brightness distribution obtained in the step 2);
4) The relative brightness value of the wall top illumination irradiated by the step 3) is determined to be 0.36, the relative brightness value is defined as K, and a light emitting device is adopted to enable the relative brightness value change gradient of corresponding points of every 10% of the total length distance from the wall top to the wall bottom to be 1K, 0.89K, 0.79K, 0.68K, 0.57K, 0.49K, 0.43K, 0.36K, 0.32K, 0.28K and 0.23K on the wall surface, so that light rays are projected onto the wall surface with diffuse reflection characteristics.
The control system adopted by the method comprises the following steps: the storage module is used for storing various sky models according to the diameterPlane brightness distribution obtained by horizontal projection of the round surface of the lens; the control module is used for controlling the lighting module and the second lighting module to project light rays onto the ceiling surface with the diffuse reflection characteristic according to the planar brightness distribution obtained in the step 2), and the storage module is electrically connected with the control module; the lighting module comprises a light-emitting device projected to the ceiling surface, and is electrically connected with the control module; the second lighting module comprises a light-emitting device projected to the wall surface, and the second lighting module is electrically connected with the control module.
The ratio of the vertical illuminance to the horizontal illuminance at any point in the 1.5m high reference layer of the space is 0.52-0.7, and the ratio of the vertical illuminance to the horizontal illuminance at the 1.5m high center of the space is 0.55.
Example 5
An indoor lighting method for realizing natural illumination characteristics comprises the following steps:
1) Obtaining a sky model, wherein the model is a 11 th type sky (namely a white blue sky in GB/T20148-2006 and a brightness distribution of a clear corona) in a CIE general standard sky, and the brightness distribution of the sky can respectively obtain the following relative brightness values of characteristic points corresponding to every 10 degrees between 0-90 degrees of zenith angles: 1. 0.65, 0.44, 0.33, 0.26, 0.22, 0.2, 0.21;
2) Performing horizontal projection on illumination brightness formed by the sky model obtained in the step 1) according to a circular surface with the diameter of 4m to obtain planar brightness distribution, wherein the relative brightness value of the boundary of the circular surface is 0.21;
3) In a typical indoor space with the dimensions of 4m×4m×3m (length, width and height), the ceiling reflectivity of 70%, the wall surface reflectivity of 80% and the ground reflectivity of 40%, adopting the luminous ceiling to distribute the target brightness distribution of the ceiling according to the planar brightness distribution obtained in the step 2) and the relative brightness value of the area from the outside of the round surface to the ceiling boundary of the step 2) to be 0.21;
4) By measuring that the relative brightness value of the wall top illumination after the illumination in the step 3) is 0.15, defining the relative brightness value as K, at the moment, adopting a light-emitting device to increase the intensity value of the wall top to 2K, and projecting light onto the wall surface with diffuse reflection property according to the brightness distribution of the relative brightness value change gradient of 2K, 1.96K, 1.54K, 1.36K, 1.2K, 1.06K, 0.92K, 0.82K, 0.72K, 0.64K and 0.56K of corresponding points of 10% total length from the wall top to the wall bottom on the wall surface.
The ratio of the vertical illuminance to the horizontal illuminance at any point in the 1.5m high reference layer of the space is 0.5-0.7, and the ratio of the vertical illuminance to the horizontal illuminance at the 1.5m high center of the space is 0.53.
Example 6
An indoor lighting method for realizing natural illumination characteristics comprises the following steps:
1) Obtaining the sky brightness of 165 points through a sky brightness scanner, fitting the characteristic points with 15 types of sky models in the CIE general standard sky according to a least square method to obtain the type 5 sky (namely, the brightness distribution of the sky with uniform brightness in GB/T20148-2006) which is closest to the fitting result;
2) According to the sky type determined in the step 1), 15 types of sky models in the CIE general standard sky are selected, the relative brightness value of the characteristic points corresponding to every 10 DEG between 0 DEG and 90 DEG of the zenith angle of the sky brightness distribution can be 11, as shown in fig. 4;
3) Performing horizontal projection on illumination brightness formed by the sky model obtained in the step 2) according to a circular surface with the diameter of 4m to obtain planar brightness distribution, wherein the relative brightness value of the boundary of the circular surface is 1;
4) In a typical indoor space with dimensions of 4m×4m×3m (length, width and height), ceiling reflectivity of 70%, wall surface reflectivity of 80% and floor surface reflectivity of 40%, light is projected onto a ceiling surface having a diffuse reflection characteristic by using a light emitting device according to the planar luminance distribution obtained in step 2) and the distribution of relative luminance values of the area from outside the circular surface to the ceiling surface boundary of step 2) of 1.
The ratio of the vertical illuminance to the horizontal illuminance at any point in the 1.5m high reference layer of the space is 0.55-0.8, and the ratio of the vertical illuminance to the horizontal illuminance at the 1.5m high center of the space is 0.59.
Example 7
An indoor lighting method for realizing natural illumination characteristics comprises the following steps:
1) Obtaining a sky model, wherein the model is a non-patent literature which is used for researching sky brightness distribution [ D ], spring and Chongqing university doctor paper, the full text database information technology edit of Chinese doctor academic paper, 6 th period of 2009, and a part of Gillette and PierPoint et al described in I138-69' are provided with a cloud sky model, and the relative brightness values of characteristic points corresponding to every 10 degrees between 0-90 degrees of sky brightness distribution can be respectively: 1. 0.8, 0.66, 0.55, 0.48, 0.44, 0.41, 0.39, 0.37, 0.33;
2) Performing horizontal projection on illumination brightness formed by the sky model obtained in the step 1) according to a circular surface with the diameter of 4m to obtain planar brightness distribution, wherein the relative brightness value of the boundary of the circular surface is 0.33;
3) In a typical indoor space with the dimensions of 4m×4m×3m (length, width and height), the ceiling reflectivity of 70%, the wall surface reflectivity of 80% and the ground reflectivity of 40%, adopting the luminous ceiling to distribute the target brightness distribution of the ceiling according to the planar brightness distribution obtained in the step 2) and the relative brightness value of the area from the outside of the round surface to the ceiling boundary of the step 2) to be 0.33;
4) The relative brightness value of the wall top illumination after the illumination in the step 3) is measured to be 0.22, the relative brightness value is defined as K, at the moment, a light emitting device is adopted to increase the intensity value of the wall top to 2K, and the light is projected onto the wall surface with diffuse reflection characteristic according to the brightness distribution of the relative brightness value change gradient of 2K, 1.7K, 1.44K, 1.22K, 1.04K, 0.88K, 0.76K, 0.64K, 0.54K, 0.46K and 0.38K of corresponding points of 10% total length distance from the wall top to the wall bottom on the wall surface.
The ratio of the vertical illuminance to the horizontal illuminance at any point in the 1.5m high reference layer of the space is 0.52-0.7, and the ratio of the vertical illuminance to the horizontal illuminance at the 1.5m high center of the space is 0.55.
Example 8
An indoor lighting method for realizing natural illumination characteristics comprises the following steps:
1) Obtaining a sky model, wherein the model is a non-patent literature which is a model for researching sky brightness distribution [ D ] by using an information method, which spring is a doctor paper of Chongqing university, the full-text database information technology of Chinese doctor academic paper is edited, 6 th period in 2009, and the brightness distribution of the sky when the Kittler full-clear-sky brightness distribution model is described in I138-69 and the Linke turbidity is 2.45, wherein the relative brightness values of characteristic points corresponding to every 10 degrees between 0-90 degrees of zenith angles of the brightness distribution of the sky can be respectively: 1. 0.65, 0.45, 0.33, 0.26, 0.23, 0.22, 0.24, 0.29, 0.32;
2) The illumination brightness formed by the sky model obtained in the step 1) is as followsPerforming horizontal projection on the round surface of the plane to obtain plane brightness distribution, wherein the relative brightness value of the boundary of the round surface is 0.32;
3) In a typical indoor space having a size of 4m×4m×3m (length, width, height), ceiling reflectivity of 70%, wall surface reflectivity of 80%, floor reflectivity of 40%, light is projected onto a ceiling surface having a diffuse reflection characteristic according to the planar luminance distribution obtained in step 2) using a light emitting device.
The control system adopted by the method comprises the following steps: the storage module is used for storing various sky models according to the diameterPlane brightness distribution obtained by horizontal projection of the round surface of the lens; a control module for controlling the lighting module according to step 2)The obtained planar brightness distribution projects light rays onto a ceiling surface with diffuse reflection characteristics, and the storage module is electrically connected with the control module; the lighting module comprises a light emitting device, and is electrically connected with the control module.
The ratio of the vertical illuminance to the horizontal illuminance at any point in the 1.5m high reference layer of the space is 0.5-1, and the ratio of the vertical illuminance to the horizontal illuminance at the 1.5m central height of the space is 0.52.
While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application. It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (15)

1. An indoor lighting method for realizing natural illumination characteristics is characterized in that: the method comprises the following steps:
and controlling the illumination mode to ensure that the fitting error of the illumination brightness distribution of the ceiling surface and the target brightness distribution is within 5%, wherein the target brightness distribution is consistent with the plane brightness distribution obtained by horizontally projecting the illumination brightness distribution formed by the sky model capable of reflecting the sky brightness distribution.
2. The method of claim 1, wherein: the method also comprises the following steps before controlling the illumination mode:
and obtaining a sky model capable of reflecting the sky brightness distribution, and horizontally projecting the illumination brightness distribution formed by the sky model to obtain the plane brightness distribution.
3. A method according to claim 1 or 2, characterized in that: the method further comprises the steps of obtaining a wall top highest brightness value k obtained after controlling the lighting mode, and controlling a second lighting mode to enable the wall brightness distribution to meet the following conditions: the brightness value of the wall top is k-5 k, and the wall brightness is gradually reduced from the wall top to the wall bottom.
4. A method according to any one of claims 1-3, wherein: the sky model comprises any one of 15 types of relative sky brightness distribution models recorded in CIE general standard sky or any one of a non-patent literature 'study on sky brightness distribution [ D ], spring, chongqing university doctor paper, chinese doctor state paper full text database information science and technology edition, and any one of various sky brightness distribution models recorded in I138-69', a sky brightness model, a sky model, a full climate model and a sky radiation brightness model by using an information method.
5. A method according to any one of claims 1-3, wherein: the fitting error is the mean value of the sum of squares of the difference values of the actual relative brightness values and the target relative brightness values of the characteristic points, the number of the characteristic points is not less than 10, and the characteristic points comprise the center of the ceiling surface and the boundary characteristic points.
6. A method according to any one of claims 1-3, wherein: the method further comprises the step of acquiring sky information before acquiring the sky model capable of reflecting the sky brightness distribution, and the step of acquiring the sky model is specifically to acquire a corresponding sky model by acquiring the sky information.
7. The method of claim 6, wherein: the sky information comprises sky types or real-time sky brightness distribution, wherein when the sky information is of a specific sky type, the acquired sky model is a sky brightness model corresponding to the specific sky type; when the sky information is real-time sky brightness distribution, fitting characteristic points in the real-time sky brightness distribution with respect to the existing sky model by using a least square method to obtain a sky model closest to a fitting result.
8. The method of claim 7, wherein: the real-time sky brightness distribution is obtained by a sky brightness scanner.
9. A method according to any one of claims 1-3, wherein: the lighting control mode is to control the fitting error of a round area which takes the center of the ceiling surface as the center and is inscribed with the short side of the ceiling surface and the target brightness distribution to be within 5%; the area of the ceiling surface outside the circle is controlled as follows: 1) The average illumination brightness is consistent with the illumination brightness of the round boundary; 2) The illumination brightness of the round boundary is used as a reference to form a darkly-darkened brightness distribution to the ceiling boundary layout, and the illumination brightness of the round boundary to the ceiling boundary area is kept to be more than 0.7; 3) The illumination brightness of the round boundary is used as a reference to form brightness distribution which gradually lightens towards the ceiling boundary, and the illumination brightness of the round boundary to the ceiling boundary area is kept to be more than 0.7.
10. A method according to any one of claims 1-3, wherein: the brightness gradient of the wall surface is reduced by 10 to 15 percent from top to bottom per 10 percent of the total length distance of the wall surface.
11. A method according to any one of claims 1-3, wherein: the illumination mode comprises at least one of projecting light rays onto a ceiling surface with diffuse reflection characteristics according to target brightness distribution by adopting a light-emitting device, arranging the target brightness distribution of the ceiling surface by adopting a light-emitting ceiling, and arranging the target brightness distribution in the ceiling surface by adopting at least one area light source respectively.
12. A method as claimed in claim 3, wherein: the second illumination mode comprises at least one of projecting light rays onto a wall surface with diffuse reflection characteristics according to target brightness distribution by adopting a light-emitting device and respectively arranging the target brightness distribution in the wall surface by adopting at least one area light source.
13. An indoor lighting control system for realizing natural illumination characteristics is characterized in that: comprising the following steps:
the storage module is used for storing different plane illumination brightness distribution, and the plane illumination brightness distribution is obtained by horizontally projecting illumination brightness formed by the sky model;
the control module is used for controlling the illumination mode according to the plane brightness distribution which is called from the storage module, and the control module is electrically connected with the storage module;
and the lighting module is used for realizing illumination brightness distribution of the ceiling surface and is electrically connected with the control module.
14. The system of claim 13, wherein: the system further comprises a sky information acquisition module, a user acquires the sky type or real-time sky brightness distribution, and the sky information acquisition module is electrically connected with the storage module.
15. The system according to claim 13 or 14, wherein: the system also comprises a second lighting module for realizing illumination brightness distribution of the wall surface, and the second lighting module is electrically connected with the control module.
CN202210393631.9A 2022-03-04 2022-04-14 Indoor illumination method and system for realizing natural illumination characteristics Pending CN116744507A (en)

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