CN112556298B - Lighting detection method for refrigerator - Google Patents
Lighting detection method for refrigerator Download PDFInfo
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- CN112556298B CN112556298B CN201910919018.4A CN201910919018A CN112556298B CN 112556298 B CN112556298 B CN 112556298B CN 201910919018 A CN201910919018 A CN 201910919018A CN 112556298 B CN112556298 B CN 112556298B
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- 238000001514 detection method Methods 0.000 title claims abstract description 58
- 238000005286 illumination Methods 0.000 claims abstract description 123
- 238000003860 storage Methods 0.000 claims abstract description 107
- 238000000034 method Methods 0.000 claims abstract description 26
- 238000005259 measurement Methods 0.000 claims description 76
- 238000009877 rendering Methods 0.000 claims description 74
- 238000005192 partition Methods 0.000 claims description 22
- 230000008014 freezing Effects 0.000 claims description 18
- 238000007710 freezing Methods 0.000 claims description 18
- 230000000007 visual effect Effects 0.000 claims description 9
- 241001465382 Physalis alkekengi Species 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- 238000003908 quality control method Methods 0.000 abstract description 5
- 238000012797 qualification Methods 0.000 abstract description 4
- 239000000047 product Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 230000004907 flux Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010561 standard procedure Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D27/00—Lighting arrangements
- F25D27/005—Lighting arrangements combined with control means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The application provides a method for detecting illumination of a refrigerator, which comprises the following steps: constructing at least one detection environment, wherein each detection environment has preset ambient light parameters; detecting illumination parameters of a storage compartment of the refrigerator in each detection environment; according to the type of the refrigerator, comparing the detected illumination parameters of the storage compartment of the refrigerator with corresponding illumination parameter allowable ranges of the type of the refrigerator; judging whether the illumination parameters of the storage compartment of the refrigerator are all within the corresponding allowable range of the illumination parameters; if so, judging that the illumination of the refrigerator is qualified. By uniformly measuring the illumination parameters of the storage compartments in a uniform detection environment and giving out the allowable range of the illumination parameters of the refrigerators of different types as a qualification judgment standard, the detection method can uniformly and normally detect the illumination quality of the inner cavity aiming at different types, different lamp layouts and different lamp types of the refrigerators, and provides technical support for the lamplight detection and product quality control of the refrigerators.
Description
Technical Field
The application relates to the technical field of refrigeration equipment, in particular to a method for detecting illumination of a refrigerator.
Background
At present, for refrigerator manufacturers, the inner cavity lamps used by the refrigerator products are generally purchased from the lamp manufacturers, and the production processes adopted by different lamp manufacturers are different, so that the illumination parameters of the lamps produced by different lamp manufacturers cannot be unified, and even the illumination parameters of the lamp products produced by the same lamp manufacturer in different batches are different. In addition, the inner cavity environments and lamp layouts of the refrigerator products produced by different refrigerator manufacturers are different. These factors make it difficult to control the illumination quality of a refrigerator product by not having a standard method for detecting the illumination quality of the interior of the refrigerator.
Therefore, a standard method for uniformly detecting the illumination of the inner cavity of the refrigerator is needed to provide technical support for the lamplight detection and the product quality control of the refrigerator.
Disclosure of Invention
An object of the present application is to provide a method for detecting the illumination quality of an inner cavity uniformly for different types, lamp layouts and lamp types of a refrigerator.
In particular, the present application provides a lighting detection method of a refrigerator, comprising:
constructing at least one detection environment, wherein each detection environment has preset ambient light parameters;
detecting illumination parameters of a storage compartment of the refrigerator in each detection environment;
according to the type of the refrigerator, comparing the detected illumination parameters of the storage compartment of the refrigerator with corresponding illumination parameter allowable ranges of the type of the refrigerator;
judging whether the illumination parameters of the storage compartment of the refrigerator are all within the corresponding allowable range of the illumination parameters;
if so, judging that the illumination of the refrigerator is qualified.
Optionally, the detection environment includes a display environment and a use environment;
the preset ambient light parameters include at least one of illuminance, color rendering index, color temperature.
Optionally, the storage compartment comprises at least one of a refrigerating compartment, a freezing compartment and a temperature changing compartment;
the illumination parameter comprises at least one of illuminance, color rendering index, color temperature.
Optionally, when the illumination parameter comprises a color rendering index, the color rendering index of the storage compartment is detected by:
when the storage compartment only comprises one lamp, measuring the color rendering index of the lamp for a plurality of times, and calculating the average value of the color rendering indexes obtained by the plurality of times of measurement to be used as the color rendering index of the storage compartment;
when the storage compartment comprises a plurality of lamps, measuring the color rendering index of each lamp for a plurality of times, and calculating the average value of the color rendering indexes obtained by the plurality of times of measurement to be used as the color rendering index of each lamp;
and calculating the average value of the color rendering indexes of all lamps and lanterns, and taking the average value as the color rendering index of the storage compartment.
Optionally, when the illumination parameter comprises a color temperature, the color temperature of the storage compartment is detected by:
when the storage compartment only comprises one lamp, measuring the color temperature of the lamp for a plurality of times, and calculating the average value of the color temperatures obtained by the plurality of times as the color temperature of the storage compartment;
when the storage compartment comprises a plurality of lamps, measuring the color temperature of each lamp for a plurality of times, and calculating the average value of the color temperatures obtained by the plurality of times as the color temperature of each lamp;
and calculating the average value of the color temperatures of all the lamps and lanterns, and taking the average value as the color temperature of the storage compartment.
Optionally, when the illumination parameter comprises illuminance, the illuminance of the storage compartment is detected by:
when the storage compartment is a refrigerating compartment, a plurality of points which are uniformly distributed are respectively selected as measuring points on each layer of partition board, two side boards and a back board of the refrigerating compartment;
measuring the illuminance at each measurement point;
the average value of the illuminance at all the measurement points was calculated as the illuminance of the refrigerating chamber.
Optionally, when the illumination parameter comprises illuminance, the illuminance of the storage compartment is detected by:
when the storage compartment is a temperature changing chamber or a freezing chamber, a plurality of points which are uniformly distributed are selected as measuring points on the bottom surface of each drawer of the temperature changing chamber or the freezing chamber;
measuring the illuminance at each measurement point;
the average value of the illuminance at all the measurement points is calculated as the illuminance of the variable temperature chamber or the freezing chamber.
Optionally, when the storage compartment is a refrigerating compartment, the lighting parameter further includes at least one of illuminance uniformity and lamp brightness.
Optionally, when the illumination parameter further includes illuminance uniformity, the illuminance uniformity of the refrigerator compartment is detected by:
respectively selecting a plurality of points which are uniformly distributed on each layer of partition board, two side plates and a back board of the refrigerating chamber as measuring points;
measuring illuminance at each measurement point of the refrigerating chamber;
calculating an average value of illuminance at all measurement points of the refrigerating chamber as an average illuminance;
determining a minimum value of illuminance at all measurement points of the refrigerating chamber;
and comparing the minimum value with the average illumination to obtain the illumination uniformity of the refrigerating chamber.
Optionally, when the lighting parameter further comprises a light intensity, the light intensity of the refrigerator compartment is detected by:
for any lamp in the refrigerating chamber, determining the brightest part of the lamp according to visual feedback of a designated height;
selecting a plurality of points at the brightest part of the lamp as measuring points, and measuring the brightness at each measuring point of the lamp;
the average of the luminance at all measurement points of the luminaire is calculated as the luminaire luminance of the luminaire.
Optionally, the method for detecting illumination of the refrigerator further comprises:
if not, judging that the illumination of the refrigerator is unqualified;
adjusting the lamp of the refrigerator;
repeating the steps of detection, comparison and judgment until the illumination parameters of the storage compartment of the refrigerator are within the corresponding allowable ranges of the illumination parameters.
In the illumination detection method of the refrigerator, at least one detection environment is firstly constructed, illumination parameters of a storage compartment of the refrigerator are detected under each detection environment, then the detected illumination parameters of the storage compartment of the refrigerator are compared with corresponding illumination parameter allowable ranges of the type of the refrigerator according to the type of the detected refrigerator, finally whether the illumination parameters of the storage compartment of the refrigerator are in the corresponding illumination parameter allowable ranges is judged, and if so, the illumination of the refrigerator is judged to be qualified. By uniformly measuring the illumination parameters of the storage compartments in a uniform detection environment and giving out the allowable range of the illumination parameters of the refrigerators of different types as a qualification judgment standard, the detection method can uniformly and normally detect the illumination quality of the inner cavity aiming at different types, different lamp layouts and different lamp types of the refrigerators, and provides technical support for the lamplight detection and product quality control of the refrigerators.
The above, as well as additional objectives, advantages, and features of the present application will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present application when read in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the application will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:
fig. 1 is a flowchart illustrating a lighting detection method of a refrigerator according to an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating illumination measurement point selection for each layer of storage space of a refrigerator according to an embodiment of the present application;
FIG. 3 is a schematic view of a method for uniformly selecting measuring points of a partition, a side plate and a back plate of a refrigerating chamber according to an embodiment of the present application;
FIG. 4 is a schematic diagram of illumination measurement point selection for a freezer or temperature change chamber according to an embodiment of the application;
FIG. 5 is a schematic illustration of a manner of uniform selection of measurement points for the bottom surface of a drawer of a freezer or temperature change chamber in accordance with an embodiment of the present application;
FIG. 6 is a schematic diagram of measuring the light intensity of a refrigerator compartment according to an embodiment of the present application;
fig. 7 is a flowchart illustrating a lighting detection method of a refrigerator according to another embodiment of the present application.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
Because the sources of the inner cavity lamps of the refrigerators of different manufacturers are different, and the inner cavity environments of the refrigerators and the lamp layout are different, the prior art does not have unified detection standards for the inner cavity illumination of the refrigerators, and related inner cavity illumination parameters of the refrigerators are not used as data support.
In order to solve the technical problems, an embodiment of the application provides a method for detecting illumination of a refrigerator. Fig. 1 illustrates a flow chart of a lighting detection method of a refrigerator according to an embodiment of the present application. Referring to fig. 1, the method may include the following steps S102 to S110.
Step S102, at least one detection environment is constructed, and each detection environment has preset ambient light parameters.
When the illumination detection of the refrigerator is performed, the ambient light may affect the detection result of the illumination parameter, so in this step, at least one detection environment with a preset ambient light parameter is constructed, so as to provide a unified standard detection environment for the measurement of the illumination parameter of the storage compartment of the refrigerator, and reduce the error of the measurement result caused by the difference of the environmental factors.
In daily life, refrigerators are generally in two environments. One is a display environment, such as a marketplace, supermarket, exhibition, etc. The other is a use environment, such as a household use environment and the like. In order to enable the illumination quality of the refrigerator product to meet different environmental requirements, a display environment and a use environment can be respectively constructed so as to measure illumination parameters of the refrigerator product in the display environment and the use environment and further evaluate the illumination quality in the two environments.
The preset ambient light parameter of the detection environment may include at least one of illuminance, color rendering index, color temperature, and the like. In order to make the constructed detection environment approach to the actual environment as much as possible, preset ambient light parameters of the constructed detection environment can be defined. Depending on the nature of the display environment and the use environment of the refrigerator, the illuminance under the display environment may typically be defined in the range of 800-840Lx, for example, 820Lx, the color rendering index may be defined in the range of 75-85Ra, for example, 80Ra, and the color temperature may be defined in the range of 6500-7000K, for example, 6700K. Illuminance under the use environment may be defined in the range of 130 to 170Lx, for example, 150Lx, color rendering index may be defined in the range of 75 to 85Ra, for example, 80Ra, and color temperature may be defined in the range of 3900 to 4200K, for example, 4000K. By properly defining the ambient light parameters of different detection environments, the actual environment of the refrigerator can be accurately simulated, and the accuracy of the illumination parameters of the refrigerator measured under the detection environments is improved.
Step S104, detecting the illumination parameters of the storage compartment of the refrigerator under each detection environment.
In this step, the illumination parameters of the storage compartment of the refrigerator are detected under each of the detection environments constructed, respectively. The storage compartment referred to herein may refer to at least one of a refrigerating compartment, a freezing compartment, a temperature changing compartment, etc. of a refrigerator. The illumination parameters may comprise at least one of illuminance, color rendering index, color temperature.
Illuminance (also called illumination intensity) refers to the luminous flux of visible light received per unit area, in lux (Lx), which is an amount indicating the intensity of illumination and the degree to which the surface area of an object is illuminated. The color rendering index (Ra) is a parameter that quantifies the color rendering of a light source, which refers to the extent to which the light source renders the true color of an object. And taking the standard light source as a reference, setting the color rendering index of the standard light source as 100, and setting the color rendering index of the rest light sources to be lower than 100. The higher the color rendering index of a light source, the better its color rendering properties, i.e. the closer the color that appears under the light source to the natural primary color. The color temperature is a physical quantity for defining the color of a light source, i.e., a certain black body is heated to a temperature, and when the color of the emitted light is the same as the color of the emitted light of a certain light source, the heated temperature of the black body is called the color temperature of the light source, and the unit is K. The color temperatures of the light sources are different, so that the light colors of the light sources are different, and the user is also different in sense.
The method for detecting the illuminance, the color rendering index and the color temperature of the storage compartment is specifically described below.
For each storage compartment of the refrigerator, one or more light fixtures may be provided therein. Taking the refrigerating chamber as an example, only one lamp, such as a top lamp, a back lamp and a side lamp, may be arranged in the refrigerating chamber, and a plurality of lamps, such as a combination of at least two of the top lamp, the back lamp and the side lamp, may also be arranged.
(1) Method for detecting color rendering index of storage compartment
The color rendering index of each storage compartment of a refrigerator can be detected by:
when the storage compartment includes only one lamp, a plurality of measurements (for example, 3 measurements) may be performed on the color rendering index of the one lamp, and then an average value of the color rendering indexes obtained by the plurality of measurements is calculated as the color rendering index of the storage compartment. And eliminating the deviation introduced by single measurement by taking an average value through multiple measurements.
When the storage compartment comprises a plurality of lamps, the color rendering index of each lamp can be measured for a plurality of times, and the average value of the color rendering indexes obtained by the plurality of times of measurement is calculated and used as the color rendering index of each lamp. Then, the average value of the color rendering indexes of all lamps is calculated and used as the color rendering index of the storage compartment. For example, assuming that n (n is an integer greater than or equal to 2) lamps are disposed in a storage compartment, and the measured values of the color rendering indexes of the n lamps are color rendering index 1, color rendering indexes 2, …, and color rendering index n, respectively, the color rendering index= (color rendering index 1+color rendering index 2+ … +color rendering index n)/n of the storage compartment is determined.
Preferably, the weight of the color rendering index of each lamp can be set according to the visual importance of each lamp in the storage compartment to the user, and the weighted average of the color rendering indexes of all lamps is calculated according to the set weight to serve as the color rendering index of the storage compartment. For example, assume that n (n is an integer greater than or equal to 2) lamps are arranged in a storage room, the measured values of the color rendering indexes of the n lamps are respectively color rendering index 1, color rendering indexes 2, … and color rendering index n, and the weights of the color rendering indexes of the n lamps are respectively a 1 、a 2 、…、a n The color rendering index of the storage compartment= (color rendering index 1×a) 1 +color rendering index 2×a 2 + … + color index n×a n )/(a 1 +a 2 +…+a n ). The color rendering index of the storage compartment obtained in a weighted average mode can more accurately reflect the visual impression of the user on the lamplight, so that the control direction which meets the requirements of the user is provided for the illumination quality of the refrigerator product.
In the embodiment of the application, the color rendering index of the lamp can be measured by a commercially available instrument with a color rendering index test function, such as an MK350 spectrometer.
(2) Method for detecting color temperature of storage compartment
Similarly, the color temperature of each storage compartment of a refrigerator can be detected by:
when the storage compartment includes only one lamp, the color temperature of the one lamp may be measured multiple times (e.g., 3 times), and an average value of the color temperatures obtained by the multiple measurements may be calculated as the color temperature of the storage compartment.
When the storage compartment comprises a plurality of lamps, the color temperature of each lamp can be measured for a plurality of times, and the average value of the color temperatures obtained by the plurality of times of measurement is calculated and used as the color temperature of each lamp. Then, the average value of the color temperatures of all lamps is calculated as the color temperature of the storage compartment. For example, assuming that n (n is an integer greater than or equal to 2) lamps are disposed in a storage room, the measured values of the color temperatures of the n lamps are color temperature 1, color temperature 2, …, and color temperature n, respectively, then the color temperature of the storage room= (color temperature 1+color temperature 2+ … +color temperature n)/n.
Preferably, the weight of the color temperature of each lamp can be set according to the visual importance of each lamp in the storage compartment to the user, and the weighted average of the color temperatures of all lamps can be calculated according to the set weight to serve as the color temperature of the storage compartment. For example, let n lamps (n is an integer greater than or equal to 2) be arranged in a storage room, the measured color temperatures of the n lamps are respectively 1, 2, … and n, and the weights of the color temperatures of the n lamps are respectively b 1 、b 2 、…、b n The color temperature of the storage compartment= (color temperature 1×b) 1 +color temperature 2 Xb 2 + … + color temperature n×b n )/(b 1 +b 2 +…+b n )。
In the embodiment of the application, the color temperature of the lamp can be measured by a commercially available instrument with a color temperature testing function, such as an MK350 spectrometer.
(3) Method for detecting illuminance of storage compartment
As described above, illuminance means a luminous flux of visible light received per unit area. For each storage compartment, since the lamp is usually disposed at a specific position of the storage compartment, the illumination angles and luminous fluxes of the lights received at different positions in the storage compartment are different, so that to accurately measure the illuminance of the storage compartment, the measurement points in the storage compartment need to be properly selected. To properly select the illumination measurement points, the structural characteristics of the different storage compartments need to be considered.
For the refrigerating chamber, a plurality of layers of partition boards are generally arranged in the refrigerating chamber, the space in the refrigerating chamber is divided into a plurality of layers of storage spaces, and food materials are placed in the storage space above each layer of partition boards. In order to comprehensively reflect illuminance data of different positions in the refrigerating chamber, a plurality of points which are uniformly distributed can be respectively selected as measuring points on each layer of partition board, two side plates and a back plate of the refrigerating chamber. By uniformly distributed is meant herein that for each of the separator, side plates, back plate, the measurement points selected thereon are spaced uniformly from each other and all measurement points are substantially uniformly dispersed on the surface thereof. In addition, the number of the measurement points selected on each of the partition plate, the side plate and the back plate can be the same or different, and the measurement points are determined according to the sizes (such as the area, the length, the width and the height) of the partition plate, the side plate and the back plate, and the number of the measurement points is not particularly limited in the application.
The selection of the illuminance measurement points of the refrigerating chamber is described below by way of example in a specific application scenario.
Assuming that 3 layers of partition plates are provided in the refrigerating chamber, the refrigerating chamber space is divided into 3 layers of storage spaces. Each layer of storage space is defined by a partition plate of the current layer, a partition plate of the upper layer (a top plate of the refrigerating chamber for the first layer of storage space), two side plates and a back plate in sequence from top to bottom. A schematic diagram of illumination measurement point selection for each layer of storage space of a refrigerator according to an embodiment of the present application is shown in fig. 2. Referring to fig. 2, for each layer of storage space of the refrigerating chamber, 6 measurement points are uniformly selected on the current layer of partition plate, 3 measurement points are uniformly selected on each side plate, and 3 measurement points are uniformly selected on the back plate, so that the number of measurement points of each layer of storage space is 15, and the number of measurement points in the whole refrigerating chamber is 15×3=45.
The measuring points can be uniformly selected on each partition board, side board and back board in various modes, and the application is not particularly limited. Taking a baffle as an example, assuming that 6 measurement points are required to be uniformly selected on the baffle, the side length of the baffle in the length direction can be equally divided into 4 equal parts, the side length of the baffle in the width direction is equally divided into 3 equal parts, 3 equal division points between two end points on two opposite side lengths in the length direction are respectively connected, 2 equal division points between two end points on two opposite side lengths in the width direction are respectively connected, 6 intersection points are formed between the connection points, and the 6 intersection points are selected as the measurement points.
In a preferred embodiment, when measuring points are uniformly selected on each partition board, each side board and each back board, the plane areas of the partition board, each side board and each back board can be divided into equal parts according to the number of the required measuring points, and then the center point in each divided part is selected as the measuring point. Fig. 3 is a schematic view showing a manner of uniformly selecting measurement points of a partition, a side plate and a back plate of a refrigerating chamber according to an embodiment of the present application. It should be noted that, fig. 3 only illustrates a uniform selection manner of the measurement points on the partition board, but those skilled in the art will understand that the uniform selection manner of the measurement points is equally applicable to the side board and the back board. The following describes a uniform selection of measurement points with reference to fig. 3 by taking a separator as an example. Referring to fig. 3, assuming that 6 measurement points are uniformly selected on the separator, the planar area of the separator may be divided into six equal parts, and since the separator is generally rectangular, each equal part is also rectangular, one side of the equal part is 1/3 of the corresponding side of the separator, and the other side is 1/2 of the corresponding side of the separator. After the area is divided equally, two diagonal lines of each equal-divided surface are made, and the intersection point of the two diagonal lines is the center point of each equal-divided surface. The point taking mode is simple, convenient, quick and accurate, and can improve the detection efficiency and the accuracy of the detection result.
After the measurement points which are uniformly distributed on each layer of partition board, two side plates and back plate of the refrigerating chamber are respectively selected, the illuminance at each selected measurement point is measured. Then, an average value of illuminance at all measurement points of the refrigerating chamber is calculated as illuminance of the refrigerating chamber.
For a freezer compartment or a temperature change compartment, it is typically a drawer, with each drawer constituting a relatively independent storage space. Therefore, when illuminance of the freezing chamber or the variable temperature chamber is measured, a plurality of points uniformly distributed on the bottom surface of each drawer of the freezing chamber or the variable temperature chamber can be selected as measurement points. By uniformly distributed is meant herein that the selected measuring points on the bottom surface of the drawer are uniformly spaced from each other and that all measuring points are substantially uniformly dispersed on the bottom surface of the drawer. The number of the measuring points selected on the bottom surface of each drawer can be determined according to the size of the bottom surface of the drawer, and the application does not limit the number of the measuring points specifically. The selection of measuring points on the bottom surface of the drawer of the freezer or variable temperature chamber may be accomplished in a similar manner as the uniform selection of measuring points on the partition, side or back panel of the refrigerator.
A schematic diagram of illumination measurement point selection for a freezer or temperature change chamber is shown in fig. 4, in which a hexahedral representation of a single drawer of the freezer or temperature change chamber, in accordance with an embodiment of the present application. Referring to fig. 4, a plurality of points are uniformly selected as illuminance measuring points on the bottom surface of the drawer. It should be noted that the number of measurement points shown in fig. 4 is merely illustrative, and does not limit the present application.
In a preferred embodiment, when measuring points are uniformly selected on the bottom surface of the drawer of the freezing chamber or the temperature changing chamber, the area of the bottom surface of the drawer can be divided equally according to the number of the required measuring points, and then the central point in each divided surface is selected as the measuring point. A schematic diagram of a manner of uniformly selecting measurement points for the bottom surface of a drawer of a freezer or temperature change chamber according to an embodiment of the application is shown in fig. 5. Referring to fig. 5, assuming that 2 measurement points are uniformly selected on the bottom surface of each drawer, the area of the bottom surface of the drawer may be first halved. Since the bottom surface of the drawer is generally a regular rectangle, the long side of the rectangular bottom surface can be halved when halving, so that the rectangular bottom surface is halved into two halving surfaces. After the area is divided equally, two diagonal lines of each equal-divided surface are made, and the intersection point of the two diagonal lines is the center point of each equal-divided surface. The measuring points are selected in a mode of taking the center points after the areas are equally divided, so that the selecting operation of the measuring points is simplified, and the detecting efficiency and the accuracy of the detecting result can be improved.
After the uniform distribution of the measurement points on the bottom surface of each drawer of the freezing chamber or the temperature changing chamber, respectively, is completed, the illuminance at each of the selected measurement points is measured. Then, an average value of illuminance at all measurement points of the freezing chamber or the temperature changing chamber is calculated as illuminance of the freezing chamber or the temperature changing chamber.
In embodiments of the present application, the measurement of illuminance may be performed by a commercially available illuminance measuring instrument, such as a Z-10 smart illuminometer, or the like.
In addition, since the refrigerating chamber is generally disposed at the upper portion of the refrigerator body and is located at the eye level of the user, and the frequency of the user opening the refrigerating chamber to take food is also high, the illuminance uniformity of the refrigerating chamber and the brightness of the lamp are also important factors affecting the user experience. When the illuminance is uneven, obvious dark areas or bright areas appear in the refrigerating chamberAnd the area affects the use experience of the user. The brightness is a physical quantity indicating the intensity of the surface luminescence (reflection) of the illuminant (reflector), which is defined as the luminous intensity per unit projected area, in candela per square meter (cd/m) 2 ). When the brightness is too high, glare is easily caused, resulting in user discomfort. Thus, when the storage compartment is a refrigerated compartment, the detected lighting parameters may further comprise at least one of illuminance uniformity, luminaire brightness. The following describes a method for detecting illuminance uniformity and lamp brightness in a refrigerating chamber.
(4) Method for detecting illuminance uniformity of refrigerating chamber
The illuminance uniformity of the refrigerator compartment can be calculated by the following formula:
illuminance uniformity = minimum illuminance/average illuminance.
The average illuminance (i.e., the illuminance of the refrigerating chamber) can be obtained by the above-mentioned method for detecting the illuminance of the refrigerating chamber, that is, a plurality of points uniformly distributed on each layer of partition board, two side boards and back board of the refrigerating chamber are selected as measurement points, then the illuminance at each measurement point of the selected refrigerating chamber is measured, and then the average value of the illuminance at all measurement points of the refrigerating chamber is calculated. The minimum illuminance is then the minimum of the measured illuminance at all measurement points of the refrigerating chamber. After the minimum value of the illuminance at all the measurement points of the refrigerating chamber is determined, the minimum value of the illuminance is compared with the average illuminance, resulting in illuminance uniformity of the refrigerating chamber.
(5) Method for detecting brightness of lamp in refrigerating chamber
As previously mentioned, only one light fixture, such as a dome light, a back light, a side light, may be provided in the refrigerated compartment, as well as a plurality of light fixtures, such as a combination of at least two of the dome light, the back light, the side light. In fig. 6, a schematic diagram of measuring the brightness of a lamp of a refrigerating chamber according to an embodiment of the present application is shown, wherein the measurement is performed for a horizontally arranged dome lamp or backlight and a vertically arranged side lamp, respectively. The method for detecting the lamp brightness in the refrigerator will be described with reference to fig. 6.
Referring to fig. 6, in measuring the lamp brightness of the refrigerator compartment, for any one lamp within the refrigerator compartment, first, the brightest portion of the lamp is determined according to visual feedback of a designated height. The visual feedback here may simulate human visual feedback and the specified height may be set to meet the eye height of most people, such as 1.5m. In particular, for a dome lamp or a backlight, the brightest portion thereof is placed horizontally, and the height of the brightest portion is flush with the designated height. For the side lamp, the brightest part is arranged vertically, and the height of the vertical midpoint of the brightest part is flush with the designated height.
Then, a plurality of points are selected as measurement points at the brightest portion of the lamp, and the luminance at each measurement point of the lamp is measured. Preferably, the plurality of measurement points are spaced evenly from each other.
Finally, the average value of the brightness at all the measurement points of the lamp is calculated as the lamp brightness of the lamp.
In the embodiment of the application, the brightness can be measured in a dark environment, and a commercially available brightness measuring instrument such as a PR680 spectroradiometer and the like can be used as the brightness measuring instrument.
The brightness of each lamp of the refrigerating chamber can be accurately measured through visual feedback of an analog person, so that the anti-dazzle quality of the lamp of the refrigerating chamber of the refrigerator is improved in quality control.
Step S106, according to the type of the refrigerator, comparing the detected illumination parameters of the storage compartment of the refrigerator with the corresponding allowable range of the illumination parameters of the type of the refrigerator.
The dimensions of the refrigerator, and in particular the width of the refrigerator, can have a significant impact on the interior environment of the refrigerator and the lamp layout. When the width of the refrigerator is different, the parameter requirements on the lamp and the layout mode of the lamp are obviously different in order to realize sufficient inner cavity illumination. Accordingly, in the embodiment of the present application, the refrigerators may be classified according to the width of the refrigerator.
The respective lighting parameter allowance ranges for each refrigerator type may be pre-stored in the database in the form of a data table. A data table of the allowable range of the lighting parameters of a certain refrigerator type (for example, refrigerator type a of width 600) is exemplarily shown in table 1.
TABLE 1
In practical application, when comparing, according to refrigerator type, searching the allowable range of illumination parameters of corresponding category (detection environment and lamp layout) in the data table, and comparing the detected illumination parameters of the storage compartment of the refrigerator with the searched allowable range of corresponding illumination parameters. For example, for the illuminance of a refrigerator of type a detected in a display environment, including a side light+back light combination, the corresponding allowable range is found in the data table as 370-610, and the detected value of the illuminance of the refrigerator is compared with the found allowable range.
By presetting the allowable range of illumination parameters of different types of refrigerators as a qualification judgment standard, data support is provided for the control of the illumination quality of the inner cavity of the refrigerator.
Step S108, judging whether the illumination parameters of the storage compartment of the refrigerator are all within the corresponding allowable illumination parameter ranges.
If yes, step S110 is performed, it is determined that the illumination of the refrigerator is acceptable.
The qualified refrigerator determined by step S108 and step S110 may enter the next process (such as other detection) of the refrigerator, and the final detected qualified refrigerator product may enter the market.
In an alternative embodiment, if the illumination parameters of the storage compartments of the refrigerator do not all fall within the corresponding allowable illumination parameters, that is, 1 or more than 1 of the detected illumination parameters of the storage compartments of the refrigerator are not within the corresponding allowable illumination parameters, the refrigerator is judged to be unqualified in illumination. For the refrigerator judged as unqualified in illumination, the lamp of the refrigerator can be adjusted, and specific adjusting methods are well known to those skilled in the art and are not described herein. After the lamps are adjusted, the steps S104 to S108 can be repeated until the illumination parameters of the storage compartment of the refrigerator are within the corresponding allowable illumination parameters, that is, the refrigerator is qualified in illumination.
According to the embodiment of the application, the uniform measurement of the illumination parameters of the storage compartment is carried out under the uniform detection environment, the allowable range of the illumination parameters of the refrigerators of different types is provided as the qualification judgment standard, the uniform and standard inner cavity illumination quality detection can be carried out aiming at different types, different lamp layouts and different lamp types of the refrigerators, and technical support is provided for the light detection and product quality control of the refrigerators.
Having described various implementations of the various elements of the embodiment of fig. 1, the implementation of the illumination detection method of the refrigerator of the present application will be described in detail by way of specific embodiments.
Fig. 7 is a flowchart illustrating a lighting detection method of a refrigerator according to an embodiment of the present application. Referring to fig. 7, the method may include at least the following steps S702 to S712.
In step S702, a display environment and a use environment required for detection are constructed, each of which has preset illuminance, color rendering index, and color temperature.
In the embodiment, the illumination in the display environment is 820Lx, the color rendering index is 80Ra, and the color temperature is 6500K to 7000K. The illuminance under the use environment is 150Lx, the color rendering index is 80Ra, and the color temperature is 4000K.
Step S704, detecting illumination parameters of the storage compartment of the refrigerator in the constructed display environment and the use environment, respectively.
In this embodiment, at least 1 refrigerator is selected for detection for each type of refrigerator.
The storage compartment of the refrigerator includes a refrigerating compartment and a freezing compartment.
The illumination parameters of the refrigerating chamber include illuminance, illuminance uniformity, color rendering index, color temperature and lamp brightness, and the detection method of these illumination parameters of the refrigerating chamber is described above, and is not repeated here.
The lighting parameters of the freezing chamber include illuminance, color rendering index, and color temperature. The detection method of these illumination parameters of the freezing chamber is also described above, and will not be described here again.
Step S706, according to the type of the refrigerator, searching the corresponding allowable range of the illumination parameter of the type of the refrigerator, and comparing the detected illumination parameter of the storage compartment of the refrigerator with the searched corresponding allowable range of the illumination parameter.
In this embodiment, the data table of the allowable range of the lighting parameters according to the different refrigerator types can be similarly shown in the foregoing table 1.
Step S708, judging whether the illumination parameters of the storage compartments of the refrigerator are all within the corresponding illumination parameter allowable ranges, if so, turning to step S710, and if not, turning to step S712.
Step S710, judging that the illumination of the refrigerator is qualified, and ending the illumination detection flow.
Step S712, judging that the illumination of the refrigerator is unqualified, and adjusting the lamp of the refrigerator. After the adjustment, the process returns to step S704.
According to the embodiment of the application, the illumination parameters of the inner cavity of the refrigerator can be accurately detected, the refrigerator is classified into qualified and unqualified products according to the detected illumination parameters, and the unqualified products are readjusted and detected until the detection result of the products is qualified, so that the strict control of the illumination quality of the inner cavity of the refrigerator is realized, and the user satisfaction of the final product is improved.
By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the application have been shown and described herein in detail, many other variations or modifications of the application consistent with the principles of the application may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the application. Accordingly, the scope of the present application should be understood and deemed to cover all such other variations or modifications.
Claims (7)
1. A lighting detection method of a refrigerator, comprising:
constructing at least one detection environment, wherein each detection environment has preset ambient light parameters;
detecting illumination parameters of a storage compartment of the refrigerator in each detection environment;
according to the type of the refrigerator, comparing the detected illumination parameters of the storage compartment of the refrigerator with corresponding illumination parameter allowable ranges of the type of the refrigerator;
judging whether the illumination parameters of the storage compartment of the refrigerator are all within the corresponding allowable illumination parameter ranges;
if yes, judging that the illumination of the refrigerator is qualified;
wherein the storage compartment comprises at least one of a refrigerating chamber, a freezing chamber and a temperature changing chamber;
the illumination parameters include at least one of illuminance, color rendering index, color temperature;
the color rendering index, the color temperature and the illuminance of the storage compartment are measured by an instrument with a color rendering index test function, an instrument with a color temperature test function and an illuminance measuring instrument respectively; and is also provided with
When the illumination parameter includes illuminance, the illuminance of the storage compartment is detected by:
when the storage compartment is a refrigerating compartment, a plurality of points which are uniformly distributed are respectively selected as measuring points on each layer of partition board, two side boards and a back board of the refrigerating compartment;
measuring illuminance at each of the measurement points;
calculating an average value of the illuminance at all the measurement points as the illuminance of the refrigerating chamber;
when the storage compartment is a temperature changing chamber or a freezing chamber, a plurality of points which are uniformly distributed are selected as measuring points on the bottom surface of each drawer of the temperature changing chamber or the freezing chamber;
measuring illuminance at each of the measurement points;
and calculating the average value of the illumination at all the measuring points as the illumination of the temperature changing chamber or the freezing chamber.
2. The method of claim 1, wherein,
the detection environment comprises a display environment and a use environment;
the preset ambient light parameters include at least one of illuminance, color rendering index, and color temperature.
3. The method of claim 1, wherein,
when the illumination parameter includes a color rendering index, the color rendering index of the storage compartment is detected by:
when the storage compartment only comprises one lamp, measuring the color rendering index of the lamp for a plurality of times, and calculating the average value of the color rendering indexes obtained by the plurality of times as the color rendering index of the storage compartment;
when the storage compartment comprises a plurality of lamps, measuring the color rendering index of each lamp for a plurality of times, and calculating the average value of the color rendering indexes obtained by the plurality of times as the color rendering index of each lamp;
and calculating the average value of the color rendering indexes of all lamps and lanterns, and taking the average value as the color rendering index of the storage compartment.
4. The method of claim 1, wherein,
when the illumination parameter includes a color temperature, the color temperature of the storage compartment is detected by:
when the storage compartment only comprises one lamp, measuring the color temperature of the lamp for a plurality of times, and calculating the average value of the color temperatures obtained by the plurality of times as the color temperature of the storage compartment;
when the storage compartment comprises a plurality of lamps, measuring the color temperature of each lamp for a plurality of times, and calculating the average value of the color temperatures obtained by the plurality of times as the color temperature of each lamp;
and calculating the average value of the color temperatures of all lamps and lanterns, and taking the average value as the color temperature of the storage compartment.
5. The method according to any one of claims 1 to 4, wherein,
when the storage compartment is a refrigerating compartment, the illumination parameter further comprises at least one of illuminance uniformity and lamp brightness.
6. The method of claim 5, wherein,
when the illumination parameters further include illuminance uniformity, the illuminance uniformity of the refrigerator compartment is detected by:
a plurality of points which are uniformly distributed are respectively selected as measuring points on each layer of partition board, two side plates and a back board of the refrigerating chamber;
measuring illuminance at each measurement point of the refrigerating chamber;
calculating an average value of illuminance at all measurement points of the refrigerating chamber as an average illuminance;
determining a minimum value of illuminance at all measurement points of the refrigerating chamber;
and comparing the minimum value with the average illumination to obtain the illumination uniformity of the refrigerating chamber.
7. The method of claim 5, wherein,
when the lighting parameters further include light intensity, the light intensity of the refrigerator compartment is detected by:
for any lamp in the refrigerating chamber, determining the brightest part of the lamp according to visual feedback of a designated height;
selecting a plurality of points at the brightest part of the lamp as measurement points, and measuring the brightness at each measurement point of the lamp;
the average value of the brightness at all the measurement points of the luminaire is calculated as the luminaire brightness of the luminaire.
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