Automobile atmosphere lamp detection and evaluation method and terminal

Abstract

The application discloses a kind of automobile atmosphere lamp detection evaluation method and terminal, the irradiation effect image of automobile atmosphere lamp of the angle of view direction and the irradiation direction is pre-set, the light-emitting area is determined from the irradiation effect image;With the light-emitting unit cell of pre-set size division entire the light-emitting area;The illumination intensity of unit area of each the light-emitting unit cell is calculated;According to the illumination intensity of unit area of each the light-emitting unit cell and its corresponding pre-set brightness judging condition and pre-set uniformity judging condition, whether the automobile atmosphere lamp is qualified is judged.The application can effectively deal with the atmosphere lamp product of luminance variation, and different position is distinguished for judging, so as to confirm whether the automobile atmosphere lamp is qualified, the accuracy of atmosphere lamp product detection evaluation of luminance variation can be improved, and product quality is controlled.

Description

Technical Field

[0001] This invention relates to the field of automotive ambient lighting design technology, and in particular to a method and terminal for testing and evaluating automotive ambient lighting. Background Technology

[0002] Ambient lighting in cars serves a decorative purpose, typically featuring light strips on the center console, door panels, roof, and center console. Available in single-color and multi-color options, it enhances the ambiance of the interior, making it aesthetically pleasing and elevating the overall vehicle's perceived quality. Due to the limited interior space, the distance between the ambient lighting source and the eyes of occupants is relatively short. Therefore, the light intensity, direction, and color of the ambient lighting significantly impact visual comfort, especially the light intensity, which plays a crucial role in the overall lighting experience and comfort of the vehicle.

[0003] Therefore, existing technologies provide some specific testing and evaluation methods for the brightness of automotive ambient lights, such as patent application number CN201611266800.3, entitled "A Method for Evaluating the Light Distribution of Automotive Interior Lighting". However, these existing testing methods are for testing the brightness of lighting lamps with uniform brightness across the entire illumination surface, and cannot be applied to the brightness testing of interior ambient lights such as sunroof ambient lights, whose brightness gradually changes with the position of the illumination area. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a method and terminal for testing and evaluating automotive ambient lights, so as to detect and evaluate the brightness and uniformity of ambient light products with brightness changes and control product quality.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A method for testing and evaluating automotive ambient lighting includes the following steps:

[0007] S1. Obtain an image of the illumination effect of the car ambient light with the viewing angle and the illumination direction at a preset angle, and determine the luminous area from the illumination effect image;

[0008] S2. Divide the entire light-emitting area into light-emitting cells of a preset size;

[0009] S3. Calculate the illuminance per unit area of ​​each of the luminous cells;

[0010] S4. Determine whether the car ambient light is qualified based on the illuminance per unit area of ​​each light-emitting cell and its corresponding preset brightness evaluation conditions and preset uniformity evaluation conditions.

[0011] A car ambient lighting detection and evaluation terminal includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it performs the following steps:

[0012] S1. Obtain an image of the illumination effect of the car ambient light with the viewing angle and the illumination direction at a preset angle, and determine the luminous area from the illumination effect image;

[0013] S2. Divide the entire light-emitting area into light-emitting cells of a preset size;

[0014] S3. Calculate the illuminance per unit area of ​​each of the luminous cells;

[0015] S4. Determine whether the car ambient light is qualified based on the illuminance per unit area of ​​each light-emitting cell and its corresponding preset brightness evaluation conditions and preset uniformity evaluation conditions.

[0016] The beneficial effects of this invention are as follows: It provides a method and terminal for testing and evaluating automotive ambient lighting. Within the illumination range of the automotive ambient lighting, a light-emitting area is determined and divided into multiple light-emitting cells. By calculating the illuminance per unit area of ​​each light-emitting cell, and combining preset brightness and uniformity evaluation conditions, the brightness and uniformity of each light-emitting cell are tested and evaluated to determine whether they meet the standards. This method can effectively address ambient lighting products with varying brightness, allowing for differentiated judgments based on different locations, thereby confirming whether the automotive ambient lighting is qualified. It improves the accuracy of testing and evaluating ambient lighting products with varying brightness, and controls product quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram illustrating the steps of a method for testing and evaluating automotive ambient lighting according to the present invention.

[0018] Figure 2 This is a schematic diagram showing the relative positions of the luminous area, the dense light area, and the sparse light area in a method for detecting and evaluating automotive ambient lighting according to the present invention.

[0019] Figure 3 This is a schematic diagram of the first cell of a method for detecting and evaluating automotive ambient lighting according to the present invention, which divides the light-dense area.

[0020] Figure 4 This is a schematic diagram of dividing the light sparse area into the second cell of a method for detecting and evaluating automotive ambient lighting according to the present invention.

[0021] Figure 5 This is a schematic diagram of the change in light intensity within a cell in a method for detecting and evaluating automotive ambient lighting according to the present invention.

[0022] Figure 6This is a system block diagram of an automotive ambient lighting detection and evaluation terminal according to the present invention.

[0023] Label Explanation:

[0024] 1. Emitting area; 2. Dense light area; 3. Sparse light area; 4. First cell; 5. Second cell;

[0025] 6. A terminal for detecting and evaluating automotive ambient lighting; 7. A processor; 8. A memory. Detailed Implementation

[0026] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0027] The distance between the light source of automotive ambient lighting and the eyes of occupants is relatively short. Therefore, the light intensity, direction of illumination, and color of the ambient lighting all have a significant impact on people's visual experience. In particular, the light intensity plays a decisive role in the comfort of interior lighting and the quality of the lighting experience for occupants.

[0028] To address this, patent application CN201611266800.3, entitled "A Method for Evaluating the Light Distribution of Automotive Interior Lighting," has been published. However, these existing testing methods are designed for lighting fixtures with uniform brightness across the entire illumination surface, and do not disclose evaluation methods related to ambient lighting. This is because there are differences between the use of interior lighting and ambient lighting. Interior lighting requires higher luminous intensity, and its direct illumination is directed towards areas that the human body typically touches, such as the steering wheel and seat surfaces. Ambient lighting, on the other hand, requires relatively soft light, and to prevent eye irritation, its direct illumination direction is not towards areas that the human body typically touches. For example, ambient lighting in a sunroof typically illuminates horizontally from both sides of the sunroof towards the center. Furthermore, to achieve a decorative and atmospheric effect, the brightness of ambient lighting on its illuminated surface is constantly changing, rather than being uniform across the entire illumination surface.

[0029] Based on the above differences, refer to Figures 1 to 5 This application proposes a method for testing and evaluating automotive ambient lighting, comprising the following steps:

[0030] S1. Obtain an image of the illumination effect of the car ambient light with the viewing angle and the illumination direction at a preset angle, and determine the luminous area 1 from the illumination effect image;

[0031] As shown in the figure, taking the sunroof ambient light as an example, in the entire illumination effect image, the two light sources of the sunroof ambient light emit illumination light from one side and the opposite side of the luminous area 1 to the luminous area 1, respectively. The preset angle between the visual direction of obtaining the illumination effect image and the illumination direction can be 80°, 85°, 90°, 95° and 100°, preferably 90°.

[0032] S2. Divide the entire light-emitting area 1 into light-emitting cells of preset size;

[0033] In this embodiment, step S2 specifically includes:

[0034] S21. Based on the arrangement law that the illuminance per unit area of ​​each luminous cell decreases as the distance between itself and the light source increases, the illuminance distribution of the car ambient light source in the luminous area 1 is obtained. According to the illuminance distribution, the luminous area 1 is divided into a dense light area 2 and a sparse light area 3.

[0035] Among them, such as Figure 1 As shown, the light rays from the two light sources overlap within the luminous area 1, and the area with more light is designated as the light-dense area 2. Conversely, the area with relatively sparse light is designated as the light-sparse area 3. After dividing the light-dense area 2 and the light-sparse area 3, the maximum light intensity values ​​of the light-dense area 2 and the light-sparse area 3 are measured by taking pictures using an imaging colorimeter.

[0036] Furthermore, due to the difference in the number of light rays, in order to improve detection efficiency and accuracy, the light-emitting cell includes a first cell 4 and a second cell 5, with the size of the first cell 4 being smaller than that of the second cell 5.

[0037] S22. Divide the light-dense area 2 using the first cell 4;

[0038] S23. Divide the light sparse area into 3 using the second cell 5.

[0039] Reference Figure 1As shown, based on the pattern produced by the light source, the middle part of the light-emitting area 1 is set as the light-sparse area 3, and there is a light-dense area 2 on both sides of the light-sparse area 3 where there is no light source. When the size of the light-emitting area 1 is 1100mm×850mm, the selected light-sparse area 3 is 1100mm×650mm, and the light-dense area 2 is 1100mm×100mm, the first cell 4 can be selected as 20mm×20mm, 30mm×30mm, 40mm×40mm, 20mm×30mm, 30mm×40mm, or 50mm×50mm, preferably 20mm×20mm, while the size of the second cell 5 can be selected as 60mm×20mm, 60mm×40mm, 60mm×60mm, 80mm×80mm, 40mm×60mm, or 20mm×80mm, preferably 60mm×20mm.

[0040] In the above, the light-dense area 2 is divided into the first cell 4, so that the light-dense area 2 is more densely divided than the light-sparse area 3, and has more measurement points, while the light-sparse area 3 has relatively fewer. In this way, the detection efficiency can be improved while ensuring good detection and evaluation results. Furthermore, the shape of the first cell 4 and the second cell 5 is not limited to rectangles. In other equivalent embodiments, they can also be triangles, rhombuses, or other regular shapes.

[0041] Considering the characteristic that light intensity decreases with increasing distance from the light source, in some embodiments, step S22 specifically includes:

[0042] Arrange all first cells 4 in a row-column array within the light-dense area 2, and set preset brightness evaluation conditions corresponding to all first cells 4 in each row.

[0043] like Figure 3 As shown, the first cell 4 of the first row of the light-dense area 2 is defined as A1-1. Within the first row, in the direction from the edge of the light-dense area 2 towards the center, the remaining first cells 4 are A1-2, A1-3, A1-4... Similarly, the first cell 4 of the second row of the light-dense area 2 is defined as A2-1. In the direction from the edge of the light-dense area 2 towards the center, the remaining first cells 4 are A2-2, A2-3, A2-4... and so on, A3, A4, A5, etc. The first cells 4 belonging to different rows of A1, A2, A3, A4, etc., are all set with preset brightness evaluation conditions, making the subsequent detection and evaluation more detailed, comprehensive, and reasonable.

[0044] In some implementations, step S23 specifically includes:

[0045] Arrange all the second cells 5 in a row-column array within the sparse light region 3, and set the preset brightness evaluation conditions corresponding to all the second cells 5 in each row.

[0046] like Figure 4 As shown, the second cell 5 of the first cell in the first row of the sparse light region 3 is defined as B1-1. In the first row, in the direction from the edge of the sparse light region 3 towards the center, the remaining first cells 4 are B1-2, B1-3, B1-4... Similarly, the second cell 5 of the first cell in the second row of the sparse light region 3 is defined as B2-1. In the direction from the edge of the sparse light region 3 towards the center, the remaining second cells 5 are B2-2, B2-3, B2-4... and so on, B3, B4, B5, etc. The second cells 5 belonging to different rows of B1, B2, B3, B4, etc. are all set with preset brightness evaluation conditions.

[0047] S3. Calculate the illuminance per unit area of ​​each luminous cell;

[0048] Considering that the luminous pattern within each luminous cell is usually linear or other irregular in structure, and the pattern typically does not fill the entire cell, the luminous pattern within the cell appears bright and gradually dims towards the surrounding area. Therefore, it is necessary to filter out the shadow portions within the cells, and thus the following content is included:

[0049] S31. Set a brightness threshold for each illuminated cell;

[0050] The brightness threshold L is set according to the following expression:

[0051] L≥0.3L An And L≥Hcd / m 2 ;

[0052] In the formula, L An This represents the base brightness value of each light-emitting cell. The base brightness values ​​of different light-emitting cells may be different or the same. H represents the minimum brightness value that each light-emitting cell can achieve when the light source intensity is a certain value. It is set according to the actual design requirements of the product. For example, it can be 0.5, 0.6, 0.7, etc.

[0053] S32. Calculate the total luminous intensity and total area of ​​all regions in the luminous cell whose brightness is greater than or equal to the brightness threshold.

[0054] All areas within a luminous cell whose brightness is below the brightness threshold are considered shadow areas. After filtering them out, the sum of the areas of the remaining areas is the total area required to calculate the illumination intensity per unit area. Figure 5As shown, within the luminous cell, a linear light source produces a bright band whose brightness gradually decreases from the center to the edge. The areas of these bright bands can be calculated as S1, S2, S3, and S4 respectively; then the total area S... 总 =S1+S2+S3+S4.

[0055] S32. Divide the total luminous intensity by the total area to obtain the luminous intensity per unit area of ​​the corresponding luminous cell.

[0056] S4. Determine whether the car ambient light is qualified based on the illuminance per unit area of ​​each luminous cell and its corresponding preset brightness and uniformity evaluation conditions.

[0057] In some embodiments, step S4 includes:

[0058] S41. Set a preset light intensity range for each illuminated cell;

[0059] Based on the above, the illuminated cells include first cell 4 and second cell 5, both of which are arranged in a row-column array. Therefore, a preset illumination intensity range is set for first cell 4 in different rows of A1, A2, A3, A4, etc., as shown in the following examples:

[0060] Defined based on physical samples, that is, based on the product that is acceptable according to actual subjective evaluation, different preset light intensity ranges are set. For example, the preset light intensity range LA1 for area A1 is 5.5±0.3cd / m². 2 The preset illuminance range for zone A2, LA2, is 5.2 ± 0.3 cd / m². 2 The preset illuminance range for zone A3 is 4.9 ± 0.3 cd / m². 2 The preset illuminance range for zone A4 is 4.6 ± 0.3 cd / m². 2 The preset illuminance range for zone A5 is 4.3 ± 0.3 cd / m². 2 wait.

[0061] Similarly, preset light intensity ranges are also set for the second cell 5 of different rows such as B1, B2, B3, and B4. For example, the preset light intensity range LB1 for area B1 is 4.2 ± 0.4 cd / m². 2 The light intensity range for zone B2 is 4.1 ± 0.4 cd / m². 2 wait.

[0062] S42. If the illumination intensity per unit area of ​​each luminous cell falls within the corresponding preset illumination intensity range, then the illumination intensity of luminous area 1 is qualified.

[0063] When testing and evaluating whether the illumination intensity of automotive ambient lights is qualified, it is required that the illumination intensity per unit area of ​​the first cell 4 in each dense light area 2 falls within the corresponding preset illumination intensity range, and the illumination intensity per unit area of ​​the second cell 5 in each sparse light area 3 falls within the corresponding preset illumination intensity range.

[0064] S43. Set a first uniformity standard value corresponding to the light-dense region 2 and a second uniformity standard value corresponding to the light-sparse region 3.

[0065] S44. Calculate the uniformity value of each luminous cell based on the light intensity per unit area and the preset light intensity.

[0066] In some embodiments, the expression for the uniformity calculation value of the first cell 4 located in the light-dense region 2 is as follows:

[0067] E An =|L ave -L An | / L An ;

[0068] In some embodiments, the expression for the uniformity calculation value of the second cell 5 located in the sparse light region 3 is as follows:

[0069] E Bn =|L ave -L Bn | / L Bn ;

[0070] In the formula, Lave represents the illuminance per unit area; L An With L Bn This represents the preset light intensity.

[0071] In some embodiments, both the first uniformity standard value and the second uniformity standard value are set to 10%, and E is required to... An and E Bn All are less than or equal to 10%. The specific values ​​for the first and second uniformity standard values ​​need to be determined based on the actual needs of the product.

[0072] S45. If the number of light-emitting cells in the dense light area 2 with a uniformity calculation value less than or equal to the first uniformity standard value and the number of light-emitting cells in the sparse light area 3 with a uniformity calculation value less than or equal to the second uniformity standard value both reach the preset number standard, then the uniformity of the light-emitting area 1 is qualified.

[0073] In some embodiments, the preset number standard corresponding to the dense light region 2 is different from the preset number standard corresponding to the sparse light region 3. It is represented by the percentage of the number of uniform cells in the total number of cells. The two can be represented as 100% and 95% respectively. That is, the uniformity requirement for the first cell 4 in the dense light region 2 is higher, requiring that the uniformity calculation value of all first cells 4 is less than or equal to the first uniformity standard value.

[0074] S46. If the light intensity and uniformity of the luminous area 1 are both qualified, then the car ambient light is qualified.

[0075] In some embodiments, the determination process for detection and evaluation includes the following:

[0076] 1. If the illuminance per unit area of ​​the first cell 4 in the dense light area 2 and the second cell 5 in the sparse light area 3 both fall within the corresponding preset illuminance range, and the number of cells that meet the uniformity requirements reaches the preset number standard, then the illuminance and uniformity are deemed qualified, and the output result is qualified.

[0077] 2. If the illuminance per unit area of ​​the first cell 4 in the dense light area 2 and / or the second cell 5 in the sparse light area 3 does not fall within the corresponding preset illuminance range, and the number of cells that meet the uniformity requirement reaches the preset number standard, then the illuminance is judged to be unqualified, and the output result is unqualified.

[0078] 3. If the illuminance per unit area of ​​the first cell 4 in the dense light region 2 and the second cell 5 in the sparse light region 3 both fall within the corresponding preset illuminance range, but the number of cells in the dense light region 2 and / or the sparse light region 3 that meet the uniformity requirements does not reach the preset number standard, then the uniformity is deemed unqualified, and the output result is unqualified.

[0079] Please refer to Figures 1 to 4 Embodiment 1 of the present invention is as follows:

[0080] A method for testing and evaluating automotive ambient lighting includes the following steps:

[0081] S1. Obtain an image of the illumination effect of the car ambient light with the viewing angle and the illumination direction at a preset angle, and determine the luminous area 1 from the illumination effect image;

[0082] S2. Divide the entire light-emitting area 1 into light-emitting cells of preset size;

[0083] In this embodiment, step S2 includes:

[0084] S21. Based on the arrangement law that the illuminance per unit area of ​​each luminous cell decreases as the distance between itself and the light source increases, the illuminance distribution of the car ambient light source in the luminous area 1 is obtained. According to the illuminance distribution, the luminous area 1 is divided into a dense light area 2 and a sparse light area 3.

[0085] S22. Divide the light-dense area 2 using the first cell 4;

[0086] S23. Divide the light sparse area into 3 using the second cell 5.

[0087] S3. Calculate the illuminance per unit area of ​​each luminous cell;

[0088] In this embodiment, step S3 includes:

[0089] S31. Set a brightness threshold for each illuminated cell;

[0090] S32. Calculate the total luminous intensity and total area of ​​all regions in the luminous cell whose brightness is greater than or equal to the brightness threshold.

[0091] S32. Divide the total luminous intensity by the total area to obtain the luminous intensity per unit area of ​​the corresponding luminous cell.

[0092] S4. Determine whether the car ambient light is qualified based on the illuminance per unit area of ​​each luminous cell and its corresponding preset brightness and uniformity evaluation conditions.

[0093] S41. Set a preset light intensity range for each illuminated cell;

[0094] S42. If the illumination intensity per unit area of ​​each luminous cell falls within the corresponding preset illumination intensity range, then the illumination intensity of luminous area 1 is qualified.

[0095] In this embodiment, step S4 further includes:

[0096] S43. Set a first uniformity standard value corresponding to the light-dense region 2 and a second uniformity standard value corresponding to the light-sparse region 3.

[0097] S44. Calculate the uniformity value of each luminous cell based on the light intensity per unit area and the preset light intensity.

[0098] S45. If the number of light-emitting cells in the dense light area 2 with a uniformity calculation value less than or equal to the first uniformity standard value and the number of light-emitting cells in the sparse light area 3 with a uniformity calculation value less than or equal to the second uniformity standard value both reach the preset number standard, then the uniformity of the light-emitting area 1 is qualified.

[0099] S46. If the light intensity and uniformity of the luminous area 1 are both qualified, then the car ambient light is qualified.

[0100] Please refer to Figure 3 and Figure 4 Embodiment two of the present invention is as follows:

[0101] A method for testing and evaluating automotive ambient lighting, based on the above-described embodiment one, such as... Figure 3 and Figure 4 As shown, step S22 specifically involves arranging all the first cells 4 in a row-column array within the light-dense area 2, and setting preset brightness evaluation conditions corresponding to all the first cells 4 in each row.

[0102] Step S23 specifically involves arranging all the second cells 5 in a row-column array within the sparse light area 3, and setting preset brightness evaluation conditions corresponding to all the second cells 5 in each row.

[0103] Please refer to Figure 6 Embodiment 3 of the present invention is as follows:

[0104] This application also proposes an automotive ambient lighting detection and evaluation terminal 6, including a memory 8, a processor 7, and a computer program stored on the memory 8 and executable on the processor 7. When the processor 7 executes the computer program, it implements an automotive ambient lighting detection and evaluation method according to Embodiment 1 or 2 above.

[0105] In summary, this invention provides a method and terminal for testing and evaluating automotive ambient lighting. Within the illumination range of the ambient lighting, a light-emitting area is determined and divided into multiple light-emitting cells. Based on the illumination pattern and the characteristic that light intensity decreases with increasing distance from the light source, dense and sparse light areas are established. Correspondingly, first and second cells of different sizes are arranged in a row-column array to reduce measurement points and improve measurement efficiency. By calculating the light intensity per unit area of ​​each cell and combining preset brightness and uniformity evaluation conditions, the brightness and uniformity of each light-emitting cell are tested and evaluated to determine whether they meet the standards. This method effectively addresses ambient lighting products with varying brightness, allowing for differentiated judgments based on different locations, thereby confirming the quality of the automotive ambient lighting. This improves the accuracy of testing and evaluating ambient lighting products with varying brightness and ensures product quality control.

[0106] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention's specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A method for detecting and evaluating an automotive atmosphere lamp, characterized by, The method comprises the following steps: S1, acquiring an irradiation effect image of an automobile atmosphere lamp with a viewing angle direction and an irradiation direction forming a preset angle, and determining a light emitting region from the irradiation effect image; S2, dividing the entire light emitting region into light emitting unit cells with a preset size; S3, calculating the light intensity per unit area of each light emitting unit cell; S4, judging whether the automobile atmosphere lamp is qualified according to the light intensity per unit area of each light emitting unit cell, and a preset brightness evaluation condition and a preset uniformity evaluation condition corresponding to each light emitting unit cell; The light emitting unit cell comprises a first unit cell and a second unit cell, and the size of the first unit cell is smaller than that of the second unit cell; The step S2 comprises: S21, dividing a light ray dense area and a light ray sparse area in the light emitting region according to the irradiation light ray distribution of the light source of the automobile atmosphere lamp in the light emitting region; S22, dividing the light ray dense area into the first unit cells; S23, dividing the light ray sparse area into the second unit cells; The step S22 specifically comprises: arranging all the first unit cells in the light ray dense area in a tabular array, and setting the preset brightness evaluation condition corresponding to all the first unit cells of each row; The step S23 specifically comprises: arranging all the second unit cells in the light ray sparse area in a tabular array, and setting the preset brightness evaluation condition corresponding to all the second unit cells of each row.

2. The method according to claim 1, wherein The step S21 further comprises: obtaining the irradiation light ray distribution according to the arrangement rule that the light intensity per unit area of each light emitting unit cell decreases with the increase of the distance between itself and the light source.

3. The method according to claim 1, wherein The step S4 comprises: S41, setting a preset light intensity range corresponding to each light emitting unit cell; S42, if the light intensity per unit area of each light emitting unit cell falls into the corresponding preset light intensity range, the light intensity of the light emitting region is qualified.

4. The method for detecting and evaluating the automobile atmosphere lamp according to claim 3, characterized in that, The step S4 further comprises: S43, setting a first uniformity standard value corresponding to the light ray dense area and a second uniformity standard value corresponding to the light ray sparse area; S44, obtaining the uniformity calculation value of each light emitting unit cell according to the light intensity per unit area and the preset light intensity; S45, if the number of the light emitting unit cells in the light ray dense area with the uniformity calculation value less than or equal to the first uniformity standard value and the number of the light emitting unit cells in the light ray sparse area with the uniformity calculation value less than or equal to the second uniformity standard value both reach a preset number standard, the uniformity of the light emitting region is qualified; S46, if the light intensity and the uniformity of the light emitting region are both qualified, the automobile atmosphere lamp is qualified.

5. The method for detecting and evaluating an automotive atmosphere lamp according to claim 1, characterized in that, The step S3 comprises: S31, setting a brightness threshold value corresponding to each light emitting unit cell; S32, calculating the total light emitting intensity and the total area of all regions in the light emitting unit cell with the brightness greater than or equal to the brightness threshold value; S32, dividing the total light emitting intensity by the total area to obtain the light intensity per unit area corresponding to the light emitting unit cell.

6. An automobile atmosphere lamp detection evaluation terminal, characterized by, The application relates to a computer program product, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor implements the following steps when the computer program is executed: S1, acquiring an irradiation effect image of a car atmosphere lamp with a preset angle between a visual angle direction and an irradiation direction, and determining a light-emitting region from the irradiation effect image; S2, dividing the whole light-emitting region into light-emitting unit cells with a preset size; S3, calculating the light intensity per unit area of each light-emitting unit cell; S4, judging whether the car atmosphere lamp is qualified according to the light intensity per unit area of each light-emitting unit cell, and preset brightness evaluation conditions and preset uniformity evaluation conditions corresponding to the light-emitting unit cell; The light-emitting unit cell comprises a first unit cell and a second unit cell, and the size of the first unit cell is smaller than that of the second unit cell; The step S2 comprises: S21, dividing a light ray dense area and a light ray sparse area in the light-emitting region according to the distribution of irradiation light rays of a light source of the car atmosphere lamp in the light-emitting region; S22, dividing the light ray dense area into the first unit cells; S23, dividing the light ray sparse area into the second unit cells; The step S22 specifically comprises: arranging all the first unit cells in the light ray dense area in a tabular array, and setting the preset brightness evaluation conditions corresponding to all the first unit cells of each row; The step S23 specifically comprises: arranging all the second unit cells in the light ray sparse area in a tabular array, and setting the preset brightness evaluation conditions corresponding to all the second unit cells of each row.

7. The automobile atmosphere lamp detection and evaluation terminal according to claim 6, characterized in that, The step S4 comprises: S41, setting a preset light intensity range corresponding to each light-emitting unit cell; S42, if the light intensity per unit area of each light-emitting unit cell falls into the corresponding preset light intensity range, the light intensity of the light-emitting region is qualified.

8. The automobile atmosphere lamp detection and evaluation terminal according to claim 7, characterized in that, The step S4 further comprises: S43, setting a first uniformity standard value corresponding to the light ray dense area and a second uniformity standard value corresponding to the light ray sparse area; S44, obtaining the uniformity calculation value of each light-emitting unit cell according to the light intensity per unit area and the preset light intensity; S45, if the number of the light-emitting unit cells with the uniformity calculation value less than or equal to the first uniformity standard value in the light ray dense area and the number of the light-emitting unit cells with the uniformity calculation value less than or equal to the second uniformity standard value in the light ray sparse area both reach a preset number standard, the uniformity of the light-emitting region is qualified; S46, if the light intensity and the uniformity of the light-emitting region are both qualified, the car atmosphere lamp is qualified.

9. The automobile atmosphere lamp detection and evaluation terminal according to claim 6, characterized in that, The step S3 comprises: S31, setting a brightness threshold value corresponding to each light-emitting unit cell; S32, calculating the light-emitting intensity sum and the area sum of all regions with brightness greater than or equal to the brightness threshold value in the light-emitting unit cell; S32, dividing the light-emitting intensity sum by the area sum to obtain the light intensity per unit area corresponding to the light-emitting unit cell.

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