CN115495810A - Method, device and equipment for evaluating indoor space brightness and readable storage medium - Google Patents
Method, device and equipment for evaluating indoor space brightness and readable storage medium Download PDFInfo
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Abstract
The invention discloses an evaluation method of indoor space brightness, which comprises the following steps: acquiring space state parameters of an indoor space, wherein the space state parameters comprise physical space information, reflection information, glare information and vertical eye illumination; calculating the indirect light eye illumination according to the space state parameters, wherein the indirect light eye illumination refers to the illumination of reflected light entering the eyes in the vertical illumination of the eyes; and generating an evaluation result of the brightness of the indoor space according to the indirect-lighting eye illuminance. The invention also discloses an evaluation device for the brightness of the indoor space, computer equipment and a computer readable storage medium. By adopting the method, the key index for evaluating the brightness of the indoor space, namely the 'indirect light eye illumination', can be accurately calculated through the space state parameters on the basis of not increasing the field test cost and workload, and important support is provided for the improvement of the indoor space illumination quality in the future.
Description
Technical Field
The present invention relates to the field of lighting technologies, and in particular, to a method and an apparatus for evaluating indoor brightness, a computer device, and a computer-readable storage medium.
Background
With the progress of science and technology and the change of working modes, the visual operation of people is expanded from the horizontal direction of the traditional paper office to the vertical direction of self-luminous screens such as computers. People are also increasingly pursuing higher quality, healthy light environment experiences, where the brightness of the overall space (spatial brightness) is one of the most important factors. However, in the existing lighting design, the horizontal illuminance is mainly focused on and is used as a main parameter index for evaluating the lighting environment, but the horizontal illuminance is improved once, the improvement effect on the overall brightness of the space is limited, the energy saving is not facilitated, and even the problems of glare, visual fatigue and the like caused by stronger brightness contrast in the space are more likely to be caused, so that the horizontal illuminance is difficult to accurately evaluate the visual brightness of the space.
The brightness of the space is closely related to the light stimulation obtained by human eyes, wherein the vertical illuminance of eyes (corneal illumiance) is the main evaluation index. Compared with a direct-view light source, the contribution of indirect light generated by diffuse reflection on various surfaces of a room in the eye illuminance is more critical, and the eye illuminance of indirect light is an important index for evaluating the "spatial brightness". However, in practical measurement, it is difficult to distinguish the contribution ratio of direct light and indirect light, which limits the application of the index to some extent, and there is a strong need to promote innovation of related technologies to realize measurement of indirect-light eye illuminance.
Although aiming at the problems that the illumination of the horizontal plane is concerned and the brightness degree of the space is ignored in the current indoor lighting, CIn the article Towards the third stage of the Lighting Technology 2010-93, it is proposed to provide an indoor space brightness degree evaluation index, i.e. an indoor Surface average emittance MRSE (Mean Room Surface appearance, unit lm/m), based on visual requirements 2 ) However, the calculation of the index involves a large amount of data and is cumbersome, and the applicability and the acceptability of the index are not high.
In summary, the prior art cannot meet the indoor lighting research, design and application work which takes the visual health requirement as the guide and focuses on the space brightness, and the application of the healthy lighting in the lighting field is hindered to a certain extent.
Disclosure of Invention
The present invention is directed to provide a method for evaluating a brightness of an indoor space, an apparatus for evaluating a brightness of an indoor space, a computer device, and a computer-readable storage medium, which can accurately calculate an indirect-illumination eye illuminance through a spatial state parameter, thereby effectively evaluating a brightness of an indoor space.
In order to solve the above technical problems, the present invention provides a method for evaluating a brightness of an indoor space, comprising: acquiring space state parameters of an indoor space, wherein the space state parameters comprise physical space information, reflection information, glare information and vertical eye illumination; calculating the eye illuminance of indirect light according to the space state parameter, wherein the eye illuminance of indirect light refers to the illuminance of reflected light entering eyes in the vertical illuminance of the eyes; and generating an evaluation result of the brightness of the indoor space according to the indirect-lighting eye illuminance.
As an improvement of the above solution, the step of calculating the indirect-light eye-illumination according to the spatial state parameter includes: calculating direct light eye illuminance according to the physical space information, the reflection information and the glare information, wherein the direct light eye illuminance refers to the illuminance of direct light entering eyes in the vertical illuminance of the eyes; and calculating the indirect light eye illuminance according to the eye vertical illuminance and the direct light eye illuminance.
As an improvement of the above, the step of calculating the direct eye illuminance according to the physical space information, the reflection information, and the glare information includes: calculating space reference parameters according to the physical space information and the reflection information, wherein the physical space information comprises the installation height of a lamp and the floor height of a room, and the reflection information comprises a wall surface reflection coefficient and an intercept; and calculating direct light eye illuminance according to the space reference parameter, the intercept, the glare information and the eye vertical illuminance, wherein the glare information comprises a reference glare value and an under-illumination glare value, and the under-illumination glare value is a glare value when the lamp is illuminated in an under-illumination mode.
As an improvement of the above solution, the step of calculating the spatial reference parameter according to the physical space information and the reflection information includes: according to the formula
Calculating a spatial reference parameter a, where k 1 ,k 2 ,k 3 Is a constant number H light For height of lamp mounting, H room And p is the reflection coefficient of the wall surface, and b is the intercept.
As an improvement of the above solution, the step of calculating the direct-light eye-illumination intensity according to the spatial reference parameter, the intercept, the glare information, and the eye-perpendicular-illumination intensity includes: according to the formula
Calculating direct eye illuminance E cor,direct Wherein E is cor Is the vertical illuminance of the eye, UGR is the reference glare value, UGR max For the down-illumination glare value, a is the spatial reference parameter and b is the intercept.
As an improvement of the above, the step of calculating the indirect eye illuminance according to the eye vertical illuminance and the direct eye illuminance comprises: according to formula E cor,indirect ＝E cor -E cor,direct Calculating the indirect eye illuminance E cor,indirect Wherein E is cor Vertical illuminance of eye, E cor,direct The eye illuminance is directly illuminated.
As an improvement of the above scheme, the method for acquiring the intercept includes: and searching a preset mapping relation according to the wall surface reflection coefficient to obtain a corresponding intercept, wherein the preset mapping relation is used for recording the corresponding relation between the wall surface reflection coefficient and the intercept.
Correspondingly, the invention also provides an evaluation device for the brightness of the indoor space, which comprises: the system comprises an acquisition module, a processing module and a control module, wherein the acquisition module is used for acquiring space state parameters of an indoor space, and the space state parameters comprise physical space information, reflection information, glare information and eye vertical illumination; the calculating module is used for calculating the indirect light eye illumination according to the space state parameter, wherein the indirect light eye illumination refers to the illumination of reflected light entering eyes in the eye vertical illumination; and the evaluation module is used for generating an evaluation result of the indoor space brightness according to the indirect light eye illuminance.
As an improvement of the above solution, the calculation module includes: the direct light eye illumination unit is used for calculating direct light eye illumination according to the physical space information, the reflection information and the glare information, wherein the direct light eye illumination refers to the illumination of direct light entering eyes in the vertical illumination of the eyes; and the indirect light eye illumination unit is used for calculating the indirect light eye illumination according to the eye vertical illumination and the direct light eye illumination.
As an improvement of the above, the direct photo-eye illumination unit includes: the first calculation subunit is used for calculating space reference parameters according to the physical space information and the reflection information, wherein the physical space information comprises the installation height of a lamp and the floor height of a room, and the reflection information comprises a wall surface reflection coefficient and an intercept; and the second calculating subunit is configured to calculate direct eye illuminance according to the spatial reference parameter, the intercept, the glare information, and the eye vertical illuminance, where the glare information includes a reference glare value and a downlighting glare value, and the downlighting glare value is a glare value when a lamp illuminates in a downlighting manner.
Correspondingly, the invention also provides computer equipment which comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the steps of the method for evaluating the brightness of the indoor space when executing the computer program.
Accordingly, the present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when being executed by a processor, implements the steps of the above-mentioned method for evaluating a sense of brightness of an indoor space.
The implementation of the invention has the following beneficial effects:
the invention creatively provides a key index for evaluating the brightness of the indoor space, namely 'indirect light eye illumination', and the scientific property, the convenience and the practicability of the index ensure that the index has higher acceptability in the future and also provide important support for the improvement of the illumination quality of the indoor space in the future;
meanwhile, the method and the device calculate the corresponding indirect light eye illumination numerical value in a specific calculation mode by acquiring the physical space information, the reflection information, the glare information, the eye vertical illumination and other related space state parameters without increasing the field test cost and workload, and have the advantages of high accuracy and convenient operation.
Drawings
FIG. 1 is a flow chart of a first embodiment of a method for evaluating the brightness of an indoor space according to the present invention;
FIG. 2 is a flow chart of a second embodiment of the method for evaluating the brightness of an indoor space according to the present invention;
FIG. 3 is a schematic view of an indoor space in the present invention;
FIG. 4 is a schematic view of the structure of the device for evaluating the brightness of the indoor space according to the present invention;
fig. 5 is a schematic structural diagram of a computing module in the indoor space brightness evaluation device according to the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 shows a flowchart of a first embodiment of the method for evaluating the brightness of the indoor space according to the present invention, which includes:
s101, space state parameters of the indoor space are obtained.
The spatial state parameters comprise physical space information, reflection information, glare information and Vertical eye illumination, wherein the physical space information is used for representing physical space data related to light in an indoor space, the reflection information is used for representing data related to light reflection in the indoor space, the glare information is used for representing a glare value of the indoor space, the Vertical illumination (Vertical illumination) refers to illumination on a Vertical plane, and the Vertical eye illumination (Vertical illumination) refers to illumination intensity received by an eye in a horizontal direction when a human body is in a normal sitting posture.
And S102, calculating the indirect light eye illumination according to the space state parameters.
The eye vertical illuminance comprises direct eye illuminance and indirect eye illuminance; the direct light eye illumination is the part of the eye vertical illumination where light rays directly emitted by the lamp enter eyes, namely the illumination where the direct light enters the eyes in the eye vertical illumination; the indirect light eye illuminance refers to the part of the eye vertical illuminance, which is reflected by a desktop, a wall and a ceiling lamp and enters eyes, namely the illuminance of reflected light entering the eyes in the eye vertical illuminance; that is, eye vertical illuminance = direct eye illuminance + indirect eye illuminance.
Specifically, the step of calculating the indirect-light eye illuminance according to the spatial state parameter includes:
(1) And calculating the direct light eye illuminance according to the physical space information, the reflection information and the glare information, wherein the direct light eye illuminance refers to the illuminance of direct light entering the eyes in the eye vertical illuminance.
The indirect light eye illumination is the part of the eye vertical illumination, which enters human eyes by the light reflected by the tabletop, the wall and the ceiling lamp. That is, the physical space information and the reflection information are influence factors of the eye illuminance of the indirect light, and the glare information reflects a result factor of the eye illuminance of the indirect light, so that the eye illuminance of the indirect light can be accurately calculated by the influence factors and the result factor.
(2) And calculating the indirect light eye illumination according to the eye vertical illumination and the direct light eye illumination.
The eye vertical illuminance = direct eye illuminance + indirect eye illuminance.
Therefore, the indirect light eye illuminance can be calculated according to the actual situation of the indoor space according to the space state parameters.
And S103, generating an evaluation result of the indoor space brightness according to the indirect-lighting eye illuminance.
The indirect-lighting eye illumination can effectively reflect the brightness of the indoor space, and in actual operation, the judgment can be carried out according to the following table:
| indirect light eye illuminance (lx) | Evaluation results |
| 10 | Darkness |
| 30 | |
| 100 | Can accept |
| 300 | Bright |
| 1000 | Guo Liang |
As can be seen from the above table, when the indirect light eye illuminance is less than 100lx, the indoor space is poor in brightness; when the eye illuminance of indirect light is between 100 and 300lx, the indoor space has better brightness; when the indirect-lighting eye illuminance is more than 300lx, the indoor space is too bright. Therefore, the brightness of the indoor space can be efficiently and lowly evaluated by calculating the eye illuminance of indirect light, and a basis is provided for adjusting the light of the indoor space.
For example, when the indoor space is judged to have poor brightness through indirect eye illumination, the brightness of the indoor space can be improved by adding the lamps; for another example, when the brightness of the indoor space is judged to be too bright through the indirect eye illuminance, the brightness of the indoor space can be reduced by reducing the number of the lamps.
It should be noted that there is no definition of the brightness of the space in the conventional standard, and the invention creatively proposes a key index for evaluating the brightness of the indoor space, i.e., "indirect light eye illuminance". The invention can obtain the corresponding indirect light eye illumination value on the basis of not increasing the field test cost and workload, and the scientific property, the convenience and the practicability of the invention ensure that the index has higher acceptability in the future and can provide important support for the improvement of the indoor space illumination quality in the future. Preferably, the present invention is applicable to classroom space.
Referring to fig. 2, fig. 2 is a flowchart illustrating a second embodiment of the method for evaluating the brightness of the indoor space according to the present invention, which includes:
s201, obtaining space state parameters of the indoor space.
As shown in fig. 3, the spatial state parameters include physical spatial information, reflection information, glare information, and vertical illuminance of the eye, specifically:
the physical space information includes the installation height of the lamp and the floor height of the room.
The glare information includes a reference glare value and an under-illumination glare value. The measuring point of the reference glare value is the middle point of the indoor rear wall, the reference glare value is consistent with the requirements in the general indoor lighting standard, no external light interference needs to be kept indoors during measurement, and the indoor lamp is fully opened at full power; the down-lighting glare value is the measured glare value when all lamps in the indoor space are lighted in the down-lighting mode, and the measured point is consistent with the reference glare value, namely the down-lighting glare value is the glare value when the lamps are lighted in the down-lighting mode.
The eye vertical illumination refers to the illumination intensity received by the eyes in the horizontal direction when the human body is in a normal sitting posture. When the vertical illuminance of the eyes is measured, the measurement point is shown in fig. 3, the height of a sitting posture sight line is selected as the measurement height, the sight line is horizontally oriented to the writing board (namely, perpendicular to the writing board), the illuminance meter is used for measurement, and finally the average value of the measurement is taken.
The reflection information includes the wall reflection coefficient (i.e., the average wall reflectivity) and the intercept. When the wall surface reflection coefficient is measured, the same light can be respectively emitted on the sample and the wall surface, and the wall surface reflectivity is measured through the reflectivity of the sample; and the value of the intercept is related to the wall reflection coefficient. Specifically, the intercept acquisition method comprises the following steps: and searching a preset mapping relation according to the wall surface reflection coefficient to obtain a corresponding intercept, wherein the preset mapping relation is used for recording the corresponding relation between the wall surface reflection coefficient and the intercept. The preset mapping relationship may be recorded in a table or graphic manner, for example, when the table manner is adopted, the preset table is as follows:
| reflection coefficient of wall surface | Intercept of a beam |
| 0.6 | -0.03 |
| 0.7 | -0.06 |
| 0.8 | -0.08 |
| 0.9 | -0.10 |
According to the preset mapping relation, the larger the wall surface reflection coefficient is, the smaller the intercept is.
And S202, calculating a space reference parameter according to the physical space information and the reflection information.
It should be noted that different indoor spaces have different physical space information and reflection information, and different physical space information and reflection information will cause different reflection states of the indoor spaces. Therefore, the spatial reference parameter can be obtained by performing the targeted processing on the physical space information and the reflection information. The physical space information comprises the installation height of the lamp and the floor height of a room, and the reflection information comprises the wall surface reflection coefficient and the intercept.
In particular, it can be according to the formula
Calculating a spatial reference parameter a, wherein:
the space reference parameter a is used for representing the relation between the reference glare value ratio (namely the ratio of the reference glare value to the lower illumination glare value) and the direct eye illumination ratio (namely the ratio of the direct eye illumination to the eye vertical illumination), and can be calculated through the installation height of the lamp and the wall surface reflection coefficient;
k 1 ,k 2 ,k 3 is constant, it is noted that k 1 ,k 2 ,k 3 All the values of (A) are between-10 and 10, but the values are not limited to the values and can be set according to actual conditions, and preferably, k 1 ,k 2 ,k 3 The value of (A) can be between-5 and 5, so as to further improve the accuracy;
H light mounting height for the lamp;
H room the floor height of the room;
rho is the reflection coefficient of the wall surface;
b is an intercept representing a correction value between the reference glare value ratio and the direct light eye illuminance ratio, and can be set according to actual conditions.
Thus, passing through the lampWith mounting height ratio (i.e.
) The space reference parameter can be calculated by the wall surface reflection coefficient and the intercept.
And S203, calculating the direct light eye illumination according to the space reference parameter, the intercept, the glare information and the eye vertical illumination.
The direct eye illuminance refers to a part of the eye vertical illuminance where light directly emitted from the lamp enters the eyes, that is, the illuminance where direct light enters the eyes in the eye vertical illuminance. Therefore, the direct light eye illuminance can be separated from the eye vertical illuminance through information such as the spatial reference parameter, the intercept, the glare information, and the eye vertical illuminance. The glare information includes a reference glare value and an under-illumination glare value.
In particular, it can be according to the formula
Calculating direct eye illuminance E cor,direct Wherein E is cor The vertical illuminance of the eye, UGR is the reference glare value, UGR max For the down-illumination glare value, a is the spatial reference parameter and b is the intercept.
Therefore, the ratio of the glare value through the reference
The direct eye illumination can be calculated by the space reference parameters, the intercept and the eye vertical illumination.
And S204, calculating the indirect light eye illuminance according to the eye vertical illuminance and the direct light eye illuminance.
Since the eye vertical illuminance is the sum of the direct eye illuminance and the indirect eye illuminance, the formula E can be obtained cor,indirect ＝E cor -E cor,direct Calculating indirect eye illuminance E cor,indirect Wherein E is cor Vertical illuminance of the eye, E cor,direct The eye illuminance is directly illuminated.
And S205, generating an evaluation result of the indoor space brightness according to the indirect-light eye illuminance.
Therefore, the method and the device can accurately calculate the key index for evaluating the brightness of the indoor space, namely 'indirect light eye illumination', by acquiring the relevant space state parameters such as the lamp installation height, the room layer height, the reference glare value, the lower illumination glare value, the eye vertical illumination, the wall reflection coefficient, the intercept and the like in the indoor space and by a specific calculation mode, thereby providing important support for the future improvement of the indoor space illumination quality and having strong practicability.
Referring to fig. 4, fig. 4 shows a specific structure of the indoor space brightness evaluation apparatus 100 of the present invention, which includes an obtaining module 1, a calculating module 2 and an evaluating module 3, specifically:
the acquiring module 1 is configured to acquire a space state parameter of an indoor space. The space state parameters comprise physical space information, reflection information, glare information and eye vertical illumination; the physical space information is used for representing physical space data related to light in an indoor space, the reflection information is used for representing data related to light reflection in the indoor space, the glare information is used for representing a glare value of the indoor space, the Vertical illuminance (Vertical illuminance) refers to the illuminance on a Vertical plane, and the Vertical illuminance of the eyes refers to the illumination intensity received by the eyes in the horizontal direction when a human body is in a normal sitting posture.
And the calculating module 2 is used for calculating the indirect light eye illumination according to the space state parameters. The eye vertical illuminance includes direct light eye illuminance and indirect light eye illuminance; the direct light eye illumination is the part of the eye vertical illumination where light rays directly emitted by the lamp enter eyes, namely the illumination where the direct light enters the eyes in the eye vertical illumination; the indirect light eye illuminance refers to the part of the eye vertical illuminance, which is reflected by a desktop, a wall and a ceiling lamp and enters eyes, namely the illuminance of reflected light entering the eyes in the eye vertical illuminance; that is, eye vertical illuminance = direct eye illuminance + indirect eye illuminance. Therefore, the indirect light eye illuminance can be calculated according to the actual situation of the indoor space according to the space state parameters.
And the evaluation module 3 is used for generating an evaluation result of the indoor space brightness according to the indirect-lighting eye illuminance.
The indirect-lighting eye illumination can effectively reflect the brightness of the indoor space, and in actual operation, the judgment can be carried out according to the following table:
as can be seen from the above table, when the indirect light eye illuminance is less than 100lx, the indoor space is poor in brightness; when the indirect light eye illuminance is between 100 and 300lx, the indoor space is good in brightness; when the indirect-lighting eye illuminance is more than 300lx, the indoor space is too bright. Therefore, the brightness of the indoor space can be efficiently and lowly evaluated by calculating the eye illuminance of indirect light, and a basis is provided for adjusting the light of the indoor space.
Therefore, by the invention, the corresponding indirect light eye illumination value can be obtained on the basis of not increasing the field test cost and workload, and important support is provided for improving the indoor space illumination quality in the future.
As shown in fig. 5, the computing module 2 includes a direct ocular illumination unit 21 and an indirect ocular illumination unit 22, specifically:
and the direct eye illumination unit 21 is used for calculating the direct eye illumination according to the physical space information, the reflection information and the glare information. Wherein, the direct light eye illuminance refers to the illuminance of the direct light entering the eye in the eye vertical illuminance.
And an indirect-illumination eye illumination unit 22 for calculating indirect-illumination eye illumination according to the eye vertical illumination and the direct-illumination eye illumination.
Further, the direct photo-eye illuminance unit 21 includes a first calculation subunit 211 and a second calculation subunit 212.
The first calculating subunit 211 is configured to calculate a spatial reference parameter according to the physical space information and the reflection information. The physical space information includes the installation height of the lamp and the height of the room layer, and the reflection information includes the wall surface reflection coefficient (i.e. the average wall surface reflectivity) and the intercept. When the wall surface reflection coefficient is measured, the same light can be respectively emitted on the sample and the wall surface, and the wall surface reflectivity is measured through the reflectivity of the sample; the value of the intercept is related to the reflection coefficient of the wall surface, and the specific acquisition method of the intercept is as follows: and searching a preset mapping relation according to the wall surface reflection coefficient to obtain a corresponding intercept, wherein the preset mapping relation is used for recording the corresponding relation between the wall surface reflection coefficient and the intercept. The preset mapping relationship may be recorded in a table or graphic manner, for example, when the table manner is adopted, the preset table is as follows:
according to the preset mapping relation, the larger the wall surface reflection coefficient is, the smaller the intercept is.
In particular, it can be based on a formula
Calculating a spatial reference parameter a, where k 1 ,k 2 ,k 3 Is constant, H light For lamp mounting height, H room And p is the reflection coefficient of the wall surface, and b is the intercept.
And a second calculating subunit 212, configured to calculate direct-light eye illuminance according to the spatial reference parameter, the intercept, the glare information, and the eye vertical illuminance. Wherein, the vertical illumination of the eyes refers to the illumination intensity received by the eyes in the horizontal direction when the human body is in a normal sitting posture; when the vertical illuminance of the eyes is measured, the measurement point is shown in fig. 3, the height of a sitting posture sight line is selected as the measurement height, the sight line is horizontally oriented to the writing board (namely, perpendicular to the writing board), the illuminance meter is used for measurement, and finally the average value of the measurement is taken. Meanwhile, the glare information comprises a reference glare value and an under-illumination glare value, a measuring point of the reference glare value is a central point of an indoor rear wall, the reference glare value is consistent with the requirement in the common indoor lighting standard, no external light interference is required to be kept indoors during measurement, and the indoor lamp is fully opened at full power; the down-lighting glare value is the measured glare value when all lamps in the indoor space are lighted in the down-lighting mode, and the measured point is consistent with the reference glare value, namely the down-lighting glare value is the glare value when the lamps are lighted in the down-lighting mode.
In particular, it can be according to the formula
Calculating direct eye illuminance E cor,direct Wherein, E cor The vertical illuminance of the eye, UGR is the reference glare value, UGR max For the down-illumination glare value, a is the spatial reference parameter and b is the intercept.
Accordingly, the indirect-optic eye-illumination unit 22 is according to formula E cor,indirect ＝E cor -E cor,direct Calculating indirect eye illuminance E cor,indirect Wherein E is cor Vertical illuminance of the eye, E cor,direct The eye illuminance is directly illuminated.
Therefore, the method and the device can accurately calculate the key index for evaluating the brightness of the indoor space, namely 'indirect light eye illumination', by acquiring the relevant space state parameters such as the lamp installation height, the room floor height, the reference glare value, the lower illumination glare value, the eye vertical illumination, the wall reflection coefficient, the intercept and the like in the indoor space and through a specific calculation mode, thereby providing important support for the future improvement of the indoor space illumination quality and having strong practicability.
Correspondingly, the invention also provides computer equipment which comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the steps of the method for evaluating the brightness of the indoor space when executing the computer program. Meanwhile, the present invention also provides a computer-readable storage medium on which a computer program is stored, the computer program, when executed by a processor, implementing the steps of the above-described method for evaluating a sense of brightness of an indoor space.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (12)
1. A method for evaluating the brightness of an indoor space, comprising:
acquiring space state parameters of an indoor space, wherein the space state parameters comprise physical space information, reflection information, glare information and eye vertical illumination;
calculating indirect light eye illumination according to the space state parameters, wherein the indirect light eye illumination refers to illumination of reflected light entering eyes in the vertical eye illumination;
and generating an evaluation result of the indoor space brightness according to the indirect-light eye illuminance.
2. The method for evaluating a sense of brightness of an indoor space according to claim 1, wherein the step of calculating the indirect-light eye-illuminance from the spatial-state parameter includes:
calculating direct light eye illuminance according to the physical space information, the reflection information and the glare information, wherein the direct light eye illuminance refers to the illuminance of direct light entering eyes in the vertical illuminance of the eyes;
and calculating the indirect light eye illumination according to the eye vertical illumination and the direct light eye illumination.
3. The method for evaluating a sense of brightness of an indoor space according to claim 2, wherein the step of calculating the direct eye illuminance from the physical space information, the reflection information, and the glare information includes:
calculating space reference parameters according to the physical space information and the reflection information, wherein the physical space information comprises the installation height of a lamp and the floor height of a room, and the reflection information comprises a wall surface reflection coefficient and an intercept;
and calculating the direct eye illumination according to the space reference parameter, the intercept, the glare information and the eye vertical illumination, wherein the glare information comprises a reference glare value and a downward-lighting glare value, and the downward-lighting glare value is a glare value when the lamp is used for lighting in a downward-lighting mode.
4. The method for evaluating a sense of brightness of an indoor space according to claim 3, wherein the step of calculating a spatial reference parameter based on the physical space information and the reflection information includes:
according to the formula
Calculating a spatial reference parameter a, where k 1 ,k 2 ,k 3 Is constant, H light For lamp mounting height, H room And p is the reflection coefficient of the wall surface, and b is the intercept.
5. The method for evaluating a sense of brightness of an indoor space according to claim 3, wherein the step of calculating the direct eye illuminance from the spatial reference parameter, the intercept, the glare information, and the eye vertical illuminance comprises:
according to the formula
Calculating direct eye illuminance E cor,direct Wherein E is cor Is the vertical illuminance of the eye, UGR is the reference glare value, UGR max For the down-illumination glare value, a is the spatial reference parameter and b is the intercept.
6. The method of evaluating a sense of brightness of an indoor space according to claim 3, wherein the step of calculating the indirect-light eye illuminance from the eye-perpendicular illuminance and the direct-light eye illuminance comprises:
according to formula E cor,indirect ＝E cor -E cor,direct Calculating the indirect eye illuminance E cor,indirect Wherein, E cor Vertical illuminance of the eye, E cor,direct The eye illuminance is directly illuminated.
7. The method for evaluating a sense of brightness of an indoor space according to claim 3, wherein the method for obtaining the intercept comprises: and searching a preset mapping relation according to the wall surface reflection coefficient to obtain a corresponding intercept, wherein the preset mapping relation is used for recording the corresponding relation between the wall surface reflection coefficient and the intercept.
8. An evaluation device for evaluating the brightness of an indoor space, comprising:
the system comprises an acquisition module, a processing module and a control module, wherein the acquisition module is used for acquiring space state parameters of an indoor space, and the space state parameters comprise physical space information, reflection information, glare information and eye vertical illumination;
the calculation module is used for calculating indirect light eye illumination according to the space state parameter, wherein the indirect light eye illumination refers to illumination of reflected light entering eyes in the vertical eye illumination;
and the evaluation module is used for generating an evaluation result of the indoor space brightness according to the indirect light eye illuminance.
9. The apparatus for evaluating a sense of brightness of an indoor space according to claim 8, wherein the calculation module includes:
the direct light eye illumination unit is used for calculating direct light eye illumination according to the physical space information, the reflection information and the glare information, wherein the direct light eye illumination refers to the illumination of direct light entering eyes in the vertical illumination of the eyes;
and the indirect light eye illumination unit is used for calculating the indirect light eye illumination according to the eye vertical illumination and the direct light eye illumination.
10. The apparatus for evaluating a sense of brightness of an indoor space according to claim 9, wherein the direct eye illumination unit includes:
the first calculating subunit is configured to calculate a spatial reference parameter according to the physical space information and reflection information, where the physical space information includes a lamp installation height and a room floor height, and the reflection information includes a wall surface reflection coefficient and an intercept;
and the second calculating subunit is configured to calculate direct eye illuminance according to the spatial reference parameter, the intercept, the glare information and the eye vertical illuminance, where the glare information includes a reference glare value and a downlighting glare value, and the downlighting glare value is a glare value when the lamp is illuminated in a downlighting manner.
11. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor realizes the steps of the method of any one of claims 1 to 6 when executing the computer program.
12. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 6.
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| CN202110679389.7A CN115495810A (en) | 2021-06-18 | 2021-06-18 | Method, device and equipment for evaluating indoor space brightness and readable storage medium |
| PCT/CN2021/102081 WO2022262000A1 (en) | 2021-06-18 | 2021-06-24 | Method and apparatus for evaluating indoor space brightness, device, and readable storage medium |
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| CN103080710A (en) * | 2010-10-08 | 2013-05-01 | 东芝照明技术株式会社 | Lighting environment evaluation method and lighting environment evaluation device |
| JP2014182084A (en) * | 2013-03-21 | 2014-09-29 | Panasonic Corp | Illumination evaluation device and illumination evaluation method |
| WO2016139706A1 (en) * | 2015-03-03 | 2016-09-09 | パナソニックＩｐマネジメント株式会社 | Device for evaluating illumination, and method for evaluating illumination |
| CN107884005B (en) * | 2017-10-20 | 2019-06-21 | 东南大学 | The optical measuring system and measurement method of a kind of simulation human eye focus ring border perception |
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| CN117011189A (en) * | 2023-09-01 | 2023-11-07 | 中认尚动（上海）检测技术有限公司 | Space brightness evaluation method |
| CN117011189B (en) * | 2023-09-01 | 2024-03-19 | 中认尚动（上海）检测技术有限公司 | Space brightness evaluation method |
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