High-rise building illumination integrated design method based on BIM technology

Abstract

The invention belongs to the technical field of high-rise building illumination, and discloses a high-rise building illumination integrated design method based on a BIM technology, and the method comprises the steps: S1, building a high-rise building internal structure material reflectivity library, and building a high-rise building internal lamp database, the reflectivity database comprises reflectivity numerical values of a fixed building surface in a building and reflectivity numerical values of indoor movable equipment, the lamp database comprises brightness, color temperature and beam angle parameter values, and accurate simulation and optimization of illumination are realized by comprehensively considering building structure materials, lamp parameters and reflection and absorption of the movable equipment to light rays. According to the method, the uniformity of indoor illumination is remarkably improved, glare and shadow areas are reduced, and a more comfortable and harmonious visual environment is created for residents or users; the high-rise building illumination integrated design method based on the BIM technology has important significance and remarkable effects in the aspects of improving illumination quality, optimizing spatial layout, saving energy, reducing emission, promoting industry development and the like.

Description

Technical Field

[0001] The present invention belongs to the technical field of high-rise building lighting, and specifically relates to a high-rise building lighting integrated design method based on BIM technology. Background Art

[0002] In the lighting design of high-rise buildings, in order to improve the overall lighting effect in the building space, the collaborative design of architecture and lighting is usually adopted, and the BIM technology is used for simulation design.

[0003] In the lighting design of high-rise buildings in the prior art, the influence of the position of the structure inside the building is usually taken into account, and the synchronous influence of the four-season ambient light outside is coordinated, so as to comprehensively consider the design method of the internal lighting fixtures of the high-rise building, complete the selection and adjustment of lamps with different parameters, and optimize the layout according to the simulated design structure. However, in actual considerations, the internal structure of the building in the prior art usually selects a fixed building body. For the movable soft-furnishings in the room, different devices have specific reflective effects inside the building. At present, the layout and selection of soft-furnishings in the actual building have a considerable impact on the indoor lighting. The current design method cannot perform adaptive analysis and design based on this influencing factor. The selection and layout of the lighting inside the high-rise building finally designed have defects, and cannot fully solve the problems of illumination, uniformity, glare control, etc. inside the building, and the actual design method is not good. Summary of the invention

[0004] The purpose of the present invention is to provide a high-rise building lighting integrated design method based on BIM technology to solve the problems raised in the above background technology.

[0005] In order to achieve the above object, the present invention provides the following technical solution: a high-rise building lighting integrated design method based on BIM technology, comprising:

[0006] S1. Establish a reflectivity database of internal structural materials of high-rise buildings and a database of internal lamps of high-rise buildings. The reflectivity database includes the reflectivity values ​​of fixed building surfaces in the building and the reflectivity values ​​of movable equipment indoors. The lamp database includes the brightness, color temperature, and beam angle parameter values;

[0007] S2. Determine the type and material of the target device to be added based on the user's needs and selection of movable devices in the indoor building;

[0008] S3. Determine the type of target lamps to be added according to the needs and choices of the user's indoor building;

[0009] S4, input the data added in S2 and S3 into the BIM software to establish a high-rise indoor model, and perform an initial arrangement of the selected movable devices and lamps according to the use requirements;

[0010] S5, selecting a determined unchanged object and adjusting an uncertain object according to the indoor light conditions, when it is determined that the parameter a of the indoor movable device is determined to be unchanged, adjusting the parameter b of the indoor lamp according to the indoor reflection conditions; when it is determined that the parameter b of the indoor lamp is unchanged, adjusting the parameter a of the indoor movable device according to the indoor reflection conditions;

[0011] S6. Determine the lighting parameters and structural parameters of the indoor movable equipment after the final simulation adjustment.

[0012] Preferably, the movable indoor equipment includes indoor furniture and indoor decorations, the indoor furniture includes sofas, dining tables and chairs, bookcases and refrigerators, the decorations include paintings, carpets and curtains, and the materials with corresponding reflectivity include glass, ceramics, plastics, cotton, linen and wood products.

[0013] Preferably, the reflectances R of the different materials are respectively:

[0014] White paint wall: reflectivity is about 70%-85%;

[0015] Light-colored wooden surface: reflectivity is about 30%-50%;

[0016] Dark wood surface: reflectivity is about 10%-20%;

[0017] Glass (ordinary transparent glass): reflectivity is about 4%-8%;

[0018] Metal (aluminum, stainless steel): reflectivity is 70%-90%;

[0019] Fabric (cotton, linen, silk): reflectivity is 10%-30%,

[0020] The expression for obtaining the light intensity E received by the surface of each material is:

[0021] The luminous intensity of the light source is I, and the distance from the light source to the surface of the movable device is d.

[0022] Preferably, when the indoor light is affected by reflections from objects such as walls and furniture, the light intensity increment reflected from the surface of the movable device to a certain point is:

[0023] Among them, the area for receiving light is A and the reflectivity is R.

[0024] Preferably, in the indoor space model, the light intensity of the lamps on each movable device and the reflected light intensity are calculated and assigned to the movable device model to reflect the brightness and reflection under actual lighting. The various indoor structures are calculated, assigned and rendered to obtain the overall indoor lighting conditions at the set position.

[0025] Preferably, the uniformity of indoor lighting coverage is analyzed based on the overall indoor lighting environment obtained. Under the premise that the parameters of fixed lamps remain unchanged, the actual value of △E is changed by adjusting the position and direction of movable equipment indoors, and the ambient light conditions are changed to obtain uniform ambient light, thereby completing the determination of the indoor structural layout.

[0026] Preferably, on the basis of keeping the indoor structural material and position unchanged, the lamp parameters are adjusted, including adjusting the luminous brightness, color and beam angle, so that the light intensity and distance acting on the light receiving material are changed, and a new indoor light environment is obtained in the indoor model, and the determined lamp parameters are obtained according to the indoor light uniformity requirements.

[0027] Preferably, the simulations under the two sets of settings are completed, and the lamp parameters and indoor movable equipment structural parameters after the final simulation adjustment are determined to obtain the indoor lighting design of the high-rise building.

[0028] The beneficial effects of the present invention are as follows:

[0029] 1. The present invention uses BIM technology to build an accurate indoor model, and comprehensively considers the reflection and absorption of light by building structural materials, lamp parameters, and movable equipment to achieve accurate simulation and optimization of lighting. This method significantly improves the uniformity of indoor lighting, reduces glare and shadow areas, and creates a more comfortable and harmonious visual environment for residents or users.

[0030] 2. The present invention introduces BIM technology, which enables lighting design to shift from traditional two-dimensional drawings to three-dimensional visual models, so that designers can intuitively observe and adjust the design plan. This not only greatly improves design efficiency, but also ensures the accuracy and feasibility of the design plan, and reduces the cost of later adjustments and changes.

[0031] 3. The present invention optimizes the lighting effect by adjusting the position and direction of indoor movable devices based on fixed lamp parameters. This flexibility enables the spatial layout to better adapt to different usage needs and scene changes, thereby improving the utilization and functionality of indoor space.

[0032] 4. The present invention can reduce unnecessary energy consumption while ensuring the quality of lighting by finely adjusting the parameters of the lamp (such as brightness, color temperature, and beam angle). In addition, the rational use of the reflectivity characteristics of indoor materials can further improve lighting efficiency and achieve the goals of green lighting and energy conservation and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the design process of the present invention. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] like Figure 1 As shown, an embodiment of the present invention provides a high-rise building lighting integrated design method based on BIM technology, including:

[0036] S1. Establish a reflectivity database of internal structural materials of high-rise buildings and a database of internal lamps of high-rise buildings. The reflectivity database includes the vertical reflectivity values ​​of fixed building surfaces in the building and the reflectivity values ​​of movable equipment indoors. The lamp database includes the brightness, color temperature, and beam angle parameter values;

[0037] S2. Determine the type and material of the target device to be added based on the user's needs and selection of movable devices in the indoor building;

[0038] S3. Determine the type of target lamps to be added according to the needs and choices of the user's indoor building;

[0039] S4, input the data added in S2 and S3 into the BIM software to establish a high-rise indoor model, and perform an initial arrangement of the selected movable devices and lamps according to the use requirements;

[0040] S5, selecting a determined unchanged object and adjusting an uncertain object according to the indoor light conditions, when it is determined that the parameter a of the indoor movable device is determined to be unchanged, adjusting the parameter b of the indoor lamp according to the indoor reflection conditions; when it is determined that the parameter b of the indoor lamp is unchanged, adjusting the parameter a of the indoor movable device according to the indoor reflection conditions;

[0041] S6. Determine the lighting parameters and structural parameters of the indoor movable equipment after the final simulation adjustment.

[0042] Among them, indoor movable equipment includes indoor home furnishings and interior decorations. Indoor furniture includes sofas, dining tables and chairs, bookcases and refrigerators. Decorations include paintings, carpets and curtains. The materials with corresponding reflectivity include glass, ceramics, plastics, cotton, linen and wood products.

[0043] Indoor furniture and decorations significantly affect indoor lighting through factors such as their material, color, shape, layout and position. Specifically, dark materials absorb more light, light materials reflect more light, and materials such as metal and glass may produce specular reflections. The layout of furniture and decorations will block or guide the flow of light and change the distribution of indoor light. In addition, adjustable elements such as curtains can directly control the amount of light penetration and have an immediate impact on indoor lighting. In summary, the reasonable selection and arrangement of indoor furniture and decorations are crucial to optimizing the indoor lighting environment.

[0044] Among them, the reflectivity R of different materials are:

[0045] White paint wall: reflectivity is about 70%-85%;

[0046] Light-colored wooden surface: reflectivity is about 30%-50%;

[0047] Dark wood surface: reflectivity is about 10%-20%;

[0048] Glass (ordinary transparent glass): reflectivity is about 4%-8%;

[0049] Metal (aluminum, stainless steel): reflectivity is 70%-90%;

[0050] Fabric (cotton, linen, silk): reflectivity is 10%-30%,

[0051] The expression for obtaining the light intensity E received by each material surface is:

[0052] Among them, the luminous intensity of the light source is I, and the distance from the light source to the surface of the movable device is d (in actual auxiliary calculation, a more complex reflection and scattering model can be established to describe the behavior of light on the surfaces of different materials, including specular reflection, diffuse reflection, subsurface scattering and other phenomena, to further assist calculation).

[0053] The reflectivity of white painted walls is measured by using optical equipment such as a photometer or reflectivity meter to illuminate the paint surface at a specific angle and measure the intensity of the reflected light. The reflectivity is calculated by comparing the intensity of the reflected light with the intensity of the incident light. White painted walls have a light color and can reflect most of the visible light, so they have a higher reflectivity. This high reflectivity helps to evenly distribute indoor light and increase the brightness of the space.

[0054] The light-colored wood surface is the same as the white painted wall. The reflectivity is determined by measuring the intensity of the reflected light through optical equipment. The texture and coating of the wood surface will also affect the measurement results. The light-colored wood surface reflects more light than the dark surface, but the reflectivity is still lower than the white painted wall. The natural texture and color depth of the wood will also affect the specific value of the reflectivity.

[0055] For different materials, multiple groups of measurement methods are used to perform multi-point measurements on materials within a limited area, calculate the final average value, and enter the reflectivity of each material into the reflectivity database.

[0056] Among them, when the indoor brightness is affected by the reflection of objects such as walls and furniture, the light intensity increment reflected from the surface of the movable device to a certain point is:

[0057] Among them, the area for receiving light is A and the reflectivity is R.

[0058] Among them, in the indoor space model, the light intensity of the lamps on each movable device and the reflected light intensity are calculated and assigned to the movable device model to reflect the brightness and reflection under actual lighting. Each indoor structure is calculated, assigned and rendered to obtain the overall indoor lighting conditions at the set position. In actual calculations, the calculation formula for light intensity can be refined, and the light source intensity distribution function (Lambert distribution, cosine distribution, etc.) can be introduced to more accurately describe the luminous intensity of the light source at different angles, and even simulate the attenuation of light in the propagation process (such as air absorption, dust scattering, etc.), and incorporate the attenuation coefficient into the light intensity calculation model. In addition to the main calculation, auxiliary calculations are performed. The calculation after the introduction of data is only for reference and is not used as actual data.

[0059] By calculating and assigning light intensity and reflected light intensity to the mobile device model, the brightness and reflection conditions in the actual lighting environment can be simulated more accurately, and the lighting effects can be foreseen in the design stage, so as to make more reasonable layout and material selection.

[0060] Through calculation, assignment and rendering, you can intuitively see the indoor lighting conditions under different positions, different materials and lamp configurations, adjust the areas with insufficient or excessive lighting, optimize the indoor lighting environment, and improve the comfort of living or working.

[0061] The use of computer simulation technology can greatly save the time and cost of actually building models for testing, quickly try out different design options in a virtual environment, and immediately see the lighting effects, thereby improving design efficiency.

[0062] In order to supplement the lighting parameter library, the types of light sources (such as LED, incandescent lamp, fluorescent lamp, etc.) and color temperatures (such as warm white, cool white, etc.) are further clarified. In addition to the basic reflectivity, the glossiness and scattering characteristics of the material are also considered to more accurately simulate the performance of the material under light and enhance the realism of the rendering effect. By establishing an auxiliary reference library, the glossiness and scattering characteristics of the material are entered and further added during simulation modeling.

[0063] In addition, in the actual environment, in addition to the direct light generated by lamps, there is also ambient light from windows, door gaps, etc. When simulating indoor light, these ambient light factors can be further introduced to more comprehensively simulate the indoor lighting conditions.

[0064] Furthermore, the light intensity and direction in different time periods (such as morning, noon, and evening) will be different, which will affect the indoor lighting effect. When simulating indoor light conditions, by establishing a timeline, the superposition of different external light within the timeline, and comprehensively considering the impact of time changes on lighting, a more realistic lighting scene can be simulated.

[0065] In order to meet different usage needs (such as reading, resting, entertainment, etc.), lighting simulation under different scenes is further set up. By adjusting parameters such as lamp brightness and color temperature, lighting environments suitable for different scenes are simulated.

[0066] Among them, according to the obtained overall indoor lighting environment, the uniformity of indoor lighting coverage is analyzed. Under the premise of unchanged fixed lamp parameters, the actual value of △E is changed by adjusting the position and direction of indoor movable equipment, and the ambient light conditions are changed to obtain uniform ambient light, and the indoor structural layout is determined. On the basis of unchanged indoor structural material and position, the lamp parameters are adjusted, including adjusting the luminous brightness, color and beam angle, so that the light intensity and distance acting on the receiving light material are changed, and a new indoor light environment is obtained in the indoor model. According to the requirements of indoor light uniformity, the lamp parameters are determined.

[0067] The uniformity of indoor lighting directly affects people's visual comfort and psychological feelings. By analyzing and adjusting the uniformity of indoor lighting coverage, we can ensure that the light intensity in various areas of the room is relatively consistent, reduce glare and shadow areas, and thus improve the overall comfort of living or working. A uniform lighting environment helps reduce eye fatigue and prevent vision loss, which is especially important for people who spend a long time indoors.

[0068] By adopting the method of controlling variables, according to the different requirements of actual users, the corresponding lighting conditions are dynamically adjusted for the situation where the lamps are fixed and the movable reflective equipment is fixed, so as to meet the needs and realize the adjustment of the indoor light environment in high-rise buildings, so as to design indoor lighting that is in line with human health, improve comfort while reducing glare and improve the utilization rate of light energy.

[0069] Among them, the simulation under two groups of settings is completed, and the lamp parameters and indoor movable equipment structural parameters after the final simulation adjustment are determined to obtain the indoor lighting design of the high-rise building. After completing the lighting simulation, the simulation results should be evaluated and optimized, and the optimal solution should be selected by comparing the lighting effects under different design schemes; and adjustments and optimizations should be made to the existing problems to improve the overall effect of indoor lighting.

[0070] The working principle and use process of the present invention:

[0071] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-rise building lighting integrated design method based on BIM technology, characterized by: include: S1. Establish a reflectivity database of internal structural materials of high-rise buildings and a database of internal lamps of high-rise buildings. The reflectivity database includes the reflectivity values ​​of fixed building surfaces in the building and the reflectivity values ​​of movable equipment indoors. The lamp database includes the brightness, color temperature, and beam angle parameter values; S2. Determine the type and material of the target device to be added based on the user's needs and selection of movable devices in the indoor building; S3. Determine the type of target lamps to be added according to the needs and choices of the user's indoor building; S4, input the data added in S2 and S3 into the BIM software to establish a high-rise indoor model, and make an initial arrangement of the selected movable devices and lamps according to the use requirements; S5, selecting a determined unchanged object and adjusting an uncertain object according to the indoor light conditions, when it is determined that the parameter a of the indoor movable device is determined to be unchanged, adjusting the parameter b of the indoor lamp according to the indoor reflection conditions; when it is determined that the parameter b of the indoor lamp is unchanged, adjusting the parameter a of the indoor movable device according to the indoor reflection conditions; S6. Determine the lighting parameters and structural parameters of the indoor movable equipment after the final simulation adjustment.

2. According to claim 1, a high-rise building lighting integrated design method based on BIM technology is characterized by: The movable indoor equipment includes indoor furniture and indoor decorations. The indoor furniture includes sofas, dining tables and chairs, bookcases and refrigerators. The decorations include paintings, carpets and curtains. The materials with corresponding reflectivity include glass, ceramics, plastics, cotton, linen and wood products.

3. According to claim 1, a high-rise building lighting integrated design method based on BIM technology is characterized by: The reflectivity R of the different materials are: White paint wall: reflectivity is about 70%-85%; Light-colored wooden surface: reflectivity is about 30%-50%; Dark wood surface: reflectivity is about 10%-20%; Glass (ordinary transparent glass): reflectivity is about 4%-8%; Metal (aluminum, stainless steel): reflectivity is 70%-90%; Fabric (cotton, linen, silk): reflectivity is 10%-30%, The expression for obtaining the light intensity E received by the surface of each material is: The luminous intensity of the light source is I, and the distance from the light source to the surface of the movable device is d.

4. According to claim 3, a method for integrated design of high-rise building lighting based on BIM technology is characterized in that: When the indoor light is affected by reflections from objects such as walls and furniture, the light intensity increment reflected from the surface of the movable device to a certain point is: Among them, the area for receiving light is A, and the reflectivity is R.

5. According to claim 4, a method for integrated design of high-rise building lighting based on BIM technology is characterized in that: In the indoor space model, the light intensity of the lamps on each movable device and the reflected light intensity are calculated and assigned to the movable device model to reflect the brightness and reflection under actual lighting. Each indoor structure is calculated, assigned and rendered to obtain the overall indoor lighting conditions at the set position.

6. The method for integrated design of high-rise building lighting based on BIM technology according to claim 5 is characterized by: According to the overall indoor lighting environment, the uniformity of indoor lighting coverage is analyzed. Under the premise that the parameters of fixed lamps remain unchanged, the actual value of △E is changed by adjusting the position and direction of indoor movable equipment, and the ambient light conditions change, so as to obtain uniform ambient light and complete the determination of indoor structural layout.

7. The method for integrated design of high-rise building lighting based on BIM technology according to claim 6 is characterized by: On the basis of keeping the indoor structure material and position unchanged, the lamp parameters are adjusted, including the luminous brightness, color and beam angle, so that the light intensity and distance acting on the light receiving material change, and a new indoor light environment is obtained in the indoor model. According to the indoor light uniformity requirements, the lamp parameters are determined.

8. The method for integrated design of high-rise building lighting based on BIM technology according to claim 7 is characterized by: Complete the simulation under the two sets of settings, determine the final simulation and adjusted lighting parameters and indoor movable equipment structure parameters, and obtain the indoor lighting design of the high-rise building.

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