LED lamp bead lightening test device and test method thereof

Abstract

The invention discloses an LED lamp bead lightening testing device and a testing method thereof, and relates to the technical field of LED lamp bead testing, and the testing method comprises the following steps: calculating a static optical evaluation coefficient and a static electrical evaluation coefficient of a to-be-tested LED lamp bead group; calculating a static evaluation index of the to-be-tested LED lamp bead group, and sending out an abnormal analysis early warning of the to-be-tested LED lamp bead group; after the abnormal analysis early warning of the to-be-detected LED lamp bead group is received, all abnormal LED lamp beads in the to-be-detected LED lamp bead group are identified and recombined to form a to-be-detected abnormal lamp bead group, a stroboscopic index and a stroboscopic percentage are extracted, a dynamic evaluation index and a static evaluation index of the to-be-detected abnormal lamp bead group are calculated, an abnormal coefficient of the abnormal lamp bead group is calculated, and the abnormal coefficient of the to-be-detected abnormal lamp bead group is calculated. And a lamp bead production abnormity early warning is sent out. The abnormal degree in the LED lamp bead group is quantified, and a basis is provided for judging whether further measures need to be taken or not.

Description

Technical Field

[0001] The invention relates to the technical field of LED lamp bead testing, and in particular to an LED lamp bead lighting testing device and a testing method thereof. Background Art

[0002] At present, warehouses for prefabricated building components are often chaotically managed, with inadequate implementation of systems and discrepancies between accounts and actuals, resulting in uncertainty in the company's assets and inaccurate cost accounting, which affects the company's specific tax rate policy, income tax declaration and comprehensive budgeting. In addition, material procurement is not reasonable, the accuracy and predictability of procurement plan management is not strong, and material procurement is not strictly controlled, resulting in the failure to prepare materials that need to be prepared in advance, and the preparation of materials that do not need to be prepared, resulting in inventory backlogs, occupying a large amount of inventory funds, and bringing difficulties to inventory, cleaning, and reconciliation. In addition, some warehouse managers lack professional training and learning, resulting in their low business level and inability to effectively manage warehouses.

[0003] In the Chinese invention application with application publication number CN119406793A, an LED lamp bead lighting test device and a test method thereof are disclosed, including lamp beads, the front and rear side walls of which are fixedly connected with pins, and a discharging mechanism, the discharging mechanism is used to arrange a large number of lamp beads neatly; a detection mechanism, the discharging mechanism can make the arranged lamp beads pass through the detection mechanism in sequence; the detection mechanism is used to energize the pins of the arranged lamp beads and screen out the lamp beads that cannot be lit; a discharging mechanism, the discharging mechanism is used to transport the lamp beads that have passed the detection out of the device; In the above invention application, the lamp beads are neatly arranged by a discharging mechanism and transferred to a detection mechanism in sequence for automatic detection and screening, making the entire screening process more coherent and efficient. However, each LED lamp bead still needs to be lit up for detection in sequence. This process is very time-consuming, especially on large-scale production lines. Detection efficiency becomes a key factor restricting production speed.

[0004] To this end, the present invention provides an LED lamp bead lighting test device and a test method thereof. Summary of the invention

[0005] 1. Technical issues to be resolved In view of the deficiencies of the prior art, the present invention provides an LED lamp bead lighting test device and a test method thereof. The present invention calculates the static optical evaluation coefficient and the static electrical evaluation coefficient of the LED lamp bead group to be tested; calculates the static evaluation index of the LED lamp bead group to be tested, and issues an abnormal analysis warning of the LED lamp bead group to be tested; after receiving the abnormal analysis warning of the LED lamp bead group to be tested, identifies all abnormal LED lamp beads in the LED lamp bead group to be tested, recombines to form an abnormal lamp bead group to be tested, extracts the stroboscopic index and stroboscopic percentage, calculates the dynamic evaluation index and the static evaluation index of the abnormal lamp bead group to be tested, calculates the abnormal coefficient of the abnormal lamp bead group, and issues an abnormal lamp bead production warning. The abnormal degree in the LED lamp bead group is quantified, providing a basis for judging whether further measures need to be taken, thereby solving the technical problems recorded in the background technology.

[0006] (II) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: A method for testing the lighting of an LED lamp bead, comprising the following steps: Collect the brightness of the LED lamp group to be tested and color temperature , calculate the static optical evaluation coefficient of the LED lamp group to be tested , and collect the working voltage of the LED lamp group to be tested , Current and power , calculate the static electrical evaluation coefficient of the LED lamp group to be tested ; Get the static optical evaluation coefficient of the LED lamp group to be tested and static electrical evaluation coefficient , calculate the static evaluation index of the LED lamp group to be tested , and send out an abnormal analysis warning of the LED lamp bead group to be tested; After receiving the abnormal analysis warning of the LED lamp bead group to be tested, all abnormal LED lamp beads in the LED lamp bead group to be tested are identified, and they are recombined to form an abnormal lamp bead group to be tested, and the flicker index Ps and flicker percentage Pb are extracted. The dynamic evaluation index Dp and static evaluation index Jp of the abnormal lamp bead group to be tested are calculated, and the abnormal coefficient Yc of the abnormal lamp bead group is calculated, and an abnormal lamp bead production warning is issued.

[0007] Furthermore, an integrated light sensor is used to collect the brightness of the LED lamp group to be tested in real time. and color temperature , calculate the static optical evaluation coefficient of the LED lamp group to be tested : in, iIndicates the sequence number of each LED lamp bead group to be tested. , m is the total number of LED lamp beads to be tested, m is a positive integer, Indicates the standard brightness of the LED lamp group. Indicates the standard color temperature of the LED lamp group.

[0008] Brightness refers to the luminous intensity of a light source per unit projected area in a specific direction. To collect the brightness data of LED lamp beads, photoelectric devices such as photoresistor sensors or photodiodes can usually be used. These sensors can respond to the light emitted by LED lamp beads and convert it into electrical signals. By measuring the size of this electrical signal, the brightness of the LED lamp beads can be indirectly obtained.

[0009] Color temperature is a physical quantity that describes the color of a light source. It indicates which wavelength of radiation is the strongest among the radiation energy of the light source, usually in Kelvin (K). To collect the color temperature data of LED lamp beads, you can use a color thermometer or a spectrum analyzer.

[0010] Furthermore, a power meter is used to collect the working voltage of the LED lamp group to be tested. , Current and power , calculate the static electrical evaluation coefficient of the LED lamp group to be tested : in, Indicates the standard power of the LED lamp group. Indicates the standard operating voltage of the LED lamp group. Indicates the standard current of the LED lamp group.

[0011] Furthermore, the static optical evaluation coefficient of the LED lamp bead group to be tested is obtained. and static electrical evaluation coefficient , calculate the static evaluation index of the LED lamp group to be tested : The static evaluation index of the corresponding LED lamp group to be tested The calculation formula is as above.

[0012] Furthermore, when the static evaluation index of the LED lamp group to be tested is Exceeding the static threshold of the lamp group + , indicating that the LED lamp bead group to be tested is abnormal, and an abnormal analysis warning of the LED lamp bead group to be tested is issued externally; wherein, It represents the average value of the static evaluation index of the LED lamp bead group to be tested in historical dust. Indicates the variance of the static evaluation index of the historical LED lamp bead group to be tested; When the static evaluation index of the LED lamp group to be tested Does not exceed the static threshold of the lamp group + , it means that the LED lamp bead group to be tested is qualified.

[0013] Furthermore, after receiving the abnormal analysis warning of the LED lamp bead group to be tested, an industrial camera is used to take an image of the LED lamp bead group to be tested, and the Sobel operator is used to calculate the gradient amplitude of each pixel in the image of the LED lamp bead group to be tested. , when the gradient amplitude of the pixel Exceeding the standard gradient amplitude range When , the point is marked as an abnormal pixel point, and the LED lamp beads corresponding to all abnormal pixel points in the image of the LED lamp bead group to be tested are identified and recorded as abnormal lamp beads.

[0014] Furthermore, the identified abnormal lamp beads are reassembled to form an abnormal lamp bead group to be tested, and a high-speed camera is used to shoot a video to extract the brightness value of each frame in the video. , draw the brightness-time curve, and extract the stroboscopic index Ps and stroboscopic percentage Pb; Among them, the flicker index is the ratio of the "area above the average brightness" to the "total area under the curve". The larger the value, the more serious the flicker, and the smaller the value, the milder the flicker. The flicker percentage is the ratio of the "difference between the maximum brightness and the minimum brightness" to the "sum of the maximum brightness and the minimum brightness", multiplied by 100% to get the percentage value. The larger the value, the greater the relative amplitude of the brightness fluctuation; the smaller the value, the milder the brightness fluctuation.

[0015] Furthermore, the stroboscopic index Ps and stroboscopic percentage Pb of the abnormal lamp bead group to be tested are obtained, and the dynamic evaluation index Dp of the abnormal lamp bead group to be tested is calculated: in, Indicates the standard stroboscopic index of the LED lamp group. Indicates the standard strobe percentage of the LED lamp group.

[0016] Furthermore, the static evaluation index Jp of the abnormal lamp bead group to be tested is analyzed and calculated, and the abnormal coefficient Yc of the abnormal lamp bead group is calculated by combining the dynamic evaluation index Dp of the abnormal lamp bead group to be tested: When the abnormal coefficient of the abnormal lamp bead group exceeds the standard abnormal coefficient , and send out warnings of abnormal lamp bead production; Among them, the analysis method of the static evaluation index Jp of the abnormal lamp bead group to be tested is the same as the static evaluation index Jp of the LED lamp bead group to be tested. The analysis method is the same.

[0017] An LED lamp bead lighting test device, comprising: Lamp bead abnormality analysis module, collects the brightness of the LED lamp bead group to be tested and color temperature , calculate the static optical evaluation coefficient of the LED lamp group to be tested , and collect the working voltage of the LED lamp group to be tested , Current and power , calculate the static electrical evaluation coefficient of the LED lamp group to be tested ; Lamp bead abnormal warning module, obtains the static optical evaluation coefficient of the LED lamp bead group to be tested and static electrical evaluation coefficient , calculate the static evaluation index of the LED lamp group to be tested , and send out an abnormal analysis warning of the LED lamp bead group to be tested; After receiving the abnormal analysis warning of the LED lamp bead group to be tested, the abnormal lamp bead analysis module identifies all abnormal LED lamp beads in the LED lamp bead group to be tested, recombines them to form an abnormal lamp bead group to be tested, extracts the stroboscopic index Ps and stroboscopic percentage Pb, calculates the dynamic evaluation index Dp and static evaluation index Jp of the abnormal lamp bead group to be tested, calculates the abnormal coefficient Yc of the abnormal lamp bead group, and issues an abnormal warning of lamp bead production.

[0018] (III) Beneficial effects The present invention provides an LED lamp bead lighting test device and a test method thereof, which have the following beneficial effects: 1. Collect the brightness of the LED lamp group to be tested and color temperature , calculate the static optical evaluation coefficient of the LED lamp group to be tested , and collect the working voltage of the LED lamp group to be tested , Current and power , calculate the static electrical evaluation coefficient of the LED lamp group to be tested , potential performance problems can be discovered and resolved in a timely manner, thereby improving the reliability and stability of LED lamp beads.

[0019] 2. Obtain the static optical evaluation coefficient of the LED lamp group to be tested and static electrical evaluation coefficient , calculate the static evaluation index of the LED lamp group to be tested , an abnormal analysis warning of the LED lamp bead group to be tested is issued to the outside, and the performance data of the LED lamp bead group can be monitored in real time. Once an abnormality is found, an early warning is issued immediately, which helps to discover potential problems in time.

[0020] 3. After receiving the abnormal analysis warning of the LED lamp bead group to be tested, all abnormal LED lamp beads in the LED lamp bead group to be tested are identified, and they are recombined to form an abnormal lamp bead group to be tested, and the stroboscopic index Ps and stroboscopic percentage Pb are extracted. The dynamic evaluation index Dp and static evaluation index Jp of the abnormal lamp bead group to be tested are calculated, and the abnormal coefficient Yc of the abnormal lamp bead group is calculated. An abnormal warning of lamp bead production is issued to the outside, and the degree of abnormality in the LED lamp bead group is quantified, which provides a basis for judging whether further measures need to be taken. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a flow chart of a method for testing lighting a LED lamp bead according to the present invention; Figure 2 The present invention is a schematic diagram of the structure of an LED lamp bead lighting test device. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1 The present invention provides a method for testing the lighting of an LED lamp bead, comprising the following steps: Step 1: Collect the brightness of the LED lamp group to be tested and color temperature , calculate the static optical evaluation coefficient of the LED lamp group to be tested , and collect the working voltage of the LED lamp group to be tested , Current and power , calculate the static electrical evaluation coefficient of the LED lamp group to be tested .

[0024] The step 1 includes the following contents: Step 101: Use the integrated light sensor to collect the brightness of the LED lamp group to be tested in real time and color temperature , calculate the static optical evaluation coefficient of the LED lamp group to be tested : in, i Indicates the sequence number of each LED lamp bead group to be tested. , m is the total number of LED lamp beads to be tested, m is a positive integer, Indicates the standard brightness of the LED lamp group. Indicates the standard color temperature of the LED lamp group.

[0025] Brightness refers to the luminous intensity of a light source per unit projected area in a specific direction. To collect the brightness data of LED lamp beads, photoelectric devices such as photoresistor sensors or photodiodes can usually be used. These sensors can respond to the light emitted by LED lamp beads and convert it into electrical signals. By measuring the size of this electrical signal, the brightness of the LED lamp beads can be indirectly obtained.

[0026] Color temperature is a physical quantity that describes the color of a light source. It indicates which wavelength of radiation is the strongest among the radiation energy of the light source, usually in Kelvin (K). To collect the color temperature data of LED lamp beads, you can use a color thermometer or a spectrum analyzer.

[0027] Step 102: Use a power meter to collect the working voltage of the LED lamp group to be tested , Current and power , calculate the static electrical evaluation coefficient of the LED lamp group to be tested : in, Indicates the standard power of the LED lamp group. Indicates the standard operating voltage of the LED lamp group. Indicates the standard current of the LED lamp group.

[0028] When using, combine the contents in steps 101 and 102: Collect the brightness of the LED lamp group to be tested and color temperature , calculate the static optical evaluation coefficient of the LED lamp group to be tested , and collect the working voltage of the LED lamp group to be tested , Current and power , calculate the static electrical evaluation coefficient of the LED lamp group to be tested , potential performance problems can be discovered and resolved in a timely manner, thereby improving the reliability and stability of LED lamp beads.

[0029] Step 2: Obtain the static optical evaluation coefficient of the LED lamp group to be tested and static electrical evaluation coefficient , calculate the static evaluation index of the LED lamp group to be tested , and issue an abnormal analysis warning of the LED lamp bead group to be tested.

[0030] The step 2 includes the following contents: Step 201: Obtain the static optical evaluation coefficient of the LED lamp bead group to be tested and static electrical evaluation coefficient , calculate the static evaluation index of the LED lamp group to be tested : The static evaluation index of the corresponding LED lamp group to be tested The calculation formula is as above.

[0031] Step 202: When the static evaluation index of the LED lamp bead group to be tested is Exceeding the static threshold of the lamp group + , indicating that the LED lamp bead group to be tested is abnormal, and an abnormal analysis warning of the LED lamp bead group to be tested is issued. It represents the average value of the static evaluation index of the LED lamp bead group to be tested in historical dust. It represents the variance of the static evaluation index of the historical LED lamp bead group to be tested.

[0032] When the static evaluation index of the LED lamp group to be tested Does not exceed the static threshold of the lamp group + , it means that the LED lamp bead group to be tested is qualified.

[0033] When using, combine the contents in steps 201 and 202: Get the static optical evaluation coefficient of the LED lamp group to be tested and static electrical evaluation coefficient , calculate the static evaluation index of the LED lamp group to be tested , an abnormal analysis warning of the LED lamp bead group to be tested is issued to the outside, and the performance data of the LED lamp bead group can be monitored in real time. Once an abnormality is found, an early warning is issued immediately, which helps to discover potential problems in time.

[0034] Step 3. After receiving the abnormal analysis warning of the LED lamp bead group to be tested, identify all abnormal LED lamp beads in the LED lamp bead group to be tested, recombine them to form an abnormal lamp bead group to be tested, extract the stroboscopic index Ps and stroboscopic percentage Pb, calculate the dynamic evaluation index Dp and static evaluation index Jp of the abnormal lamp bead group to be tested, calculate the abnormal coefficient Yc of the abnormal lamp bead group, and issue an abnormal warning of lamp bead production.

[0035] The step three includes the following contents: Step 301: After receiving the abnormal analysis warning of the LED lamp bead group to be tested, use an industrial camera to take an image of the LED lamp bead group to be tested, and use the Sobel operator to calculate the gradient amplitude of each pixel in the image of the LED lamp bead group to be tested. , when the gradient amplitude of the pixel Exceeding the standard gradient amplitude range When , the point is marked as an abnormal pixel point, and the LED lamp beads corresponding to all abnormal pixel points in the image of the LED lamp bead group to be tested are identified and recorded as abnormal lamp beads.

[0036] in, j Indicates the sequential number of each pixel in the image of the LED lamp group to be tested.

[0037] Step 302: Recombine the identified abnormal lamp beads to form an abnormal lamp bead group to be tested, use a high-speed camera to shoot a video, and extract the brightness value of each frame in the video , draw the brightness-time curve, and extract the flicker index Ps and flicker percentage Pb.

[0038] Among them, the flicker index is the ratio of "area above average brightness" to "total area under the curve". The larger the value, the more serious the flicker, and the smaller the value, the milder the flicker. The flicker percentage is the ratio of "difference between maximum brightness and minimum brightness" to "sum of maximum brightness and minimum brightness", multiplied by 100% to get the percentage value. The larger the value, the greater the relative amplitude of brightness fluctuation; the smaller the value, the milder the brightness fluctuation.

[0039] Step 303, obtain the stroboscopic index Ps and stroboscopic percentage Pb of the abnormal lamp bead group to be tested, and calculate the dynamic evaluation index Dp of the abnormal lamp bead group to be tested: in, Indicates the standard stroboscopic index of the LED lamp group. Indicates the standard strobe percentage of the LED lamp group.

[0040] Step 304: Analyze and calculate the static evaluation index Jp of the abnormal lamp bead group to be tested, and calculate the abnormal coefficient Yc of the abnormal lamp bead group in combination with the dynamic evaluation index Dp of the abnormal lamp bead group to be tested: When the abnormal coefficient of the abnormal lamp bead group exceeds the standard abnormal coefficient , and issue an abnormal warning of lamp bead production to the outside, reflecting the existence of systematic or random problems in the LED lamp bead production process.

[0041] Among them, the analysis method of the static evaluation index Jp of the abnormal lamp bead group to be tested is the same as the static evaluation index Jp of the LED lamp bead group to be tested. The analysis method is the same.

[0042] When used, combine the contents in steps 301 to 304: After receiving the abnormal analysis warning of the LED lamp bead group to be tested, all abnormal LED lamp beads in the LED lamp bead group to be tested are identified, and they are recombined to form an abnormal lamp bead group to be tested, and the flicker index Ps and flicker percentage Pb are extracted. The dynamic evaluation index Dp and static evaluation index Jp of the abnormal lamp bead group to be tested are calculated, and the abnormal coefficient Yc of the abnormal lamp bead group is calculated. An abnormal warning of lamp bead production is issued to the outside, and the degree of abnormality in the LED lamp bead group is quantified, providing a basis for judging whether further measures need to be taken.

[0043] See also Figure 2 The present invention provides an LED lamp bead lighting test device, comprising: Lamp bead abnormality analysis module, collects the brightness of the LED lamp bead group to be tested and color temperature , calculate the static optical evaluation coefficient of the LED lamp group to be tested , and collect the working voltage of the LED lamp group to be tested , Current and power , calculate the static electrical evaluation coefficient of the LED lamp group to be tested .

[0044] Lamp bead abnormal warning module, obtains the static optical evaluation coefficient of the LED lamp bead group to be tested and static electrical evaluation coefficient , calculate the static evaluation index of the LED lamp group to be tested , and issue an abnormal analysis warning of the LED lamp bead group to be tested.

[0045] After receiving the abnormal analysis warning of the LED lamp bead group to be tested, the abnormal lamp bead analysis module identifies all abnormal LED lamp beads in the LED lamp bead group to be tested, recombines them to form an abnormal lamp bead group to be tested, extracts the stroboscopic index Ps and stroboscopic percentage Pb, calculates the dynamic evaluation index Dp and static evaluation index Jp of the abnormal lamp bead group to be tested, calculates the abnormal coefficient Yc of the abnormal lamp bead group, and issues an abnormal warning of lamp bead production.

[0046] The above embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination thereof. When implemented using software, the above embodiments may be implemented in whole or in part in the form of a computer program product. A person of ordinary skill in the art may appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein may be implemented in electronic hardware, or in a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution.

[0047] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0048] The above description is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application.

Claims

1. A method for testing the lighting of an LED lamp bead, characterized in that: The steps include: Collect the brightness of the LED lamp group to be tested and color temperature , calculate the static optical evaluation coefficient of the LED lamp group to be tested , and collect the working voltage of the LED lamp group to be tested , Current and power , calculate the static electrical evaluation coefficient of the LED lamp group to be tested ; Get the static optical evaluation coefficient of the LED lamp group to be tested and static electrical evaluation coefficient , calculate the static evaluation index of the LED lamp group to be tested , and send out an abnormal analysis warning of the LED lamp bead group to be tested; After receiving the abnormal analysis warning of the LED lamp bead group to be tested, all abnormal LED lamp beads in the LED lamp bead group to be tested are identified, and they are recombined to form an abnormal lamp bead group to be tested, and the flicker index Ps and flicker percentage Pb are extracted. The dynamic evaluation index Dp and static evaluation index Jp of the abnormal lamp bead group to be tested are calculated, and the abnormal coefficient Yc of the abnormal lamp bead group is calculated, and an abnormal lamp bead production warning is issued.

2. The LED lamp bead lighting test method according to claim 1, characterized in that: Use integrated light sensors to collect the brightness of the LED lamp group to be tested in real time and color temperature , calculate the static optical evaluation coefficient of the LED lamp group to be tested : in, i Indicates the sequence number of each LED lamp bead group to be tested. , m is the total number of LED lamp beads to be tested, m is a positive integer, Indicates the standard brightness of the LED lamp group. Indicates the standard color temperature of the LED lamp group.

3. The LED lamp bead lighting test method according to claim 1, characterized in that: At the same time, use the power meter to collect the working voltage of the LED lamp group to be tested , Current and power , calculate the static electrical evaluation coefficient of the LED lamp group to be tested : in, Indicates the standard power of the LED lamp group. Indicates the standard operating voltage of the LED lamp group. Indicates the standard current of the LED lamp group.

4. The LED lamp bead lighting test method according to claim 1, characterized in that: Get the static optical evaluation coefficient of the LED lamp group to be tested and static electrical evaluation coefficient , calculate the static evaluation index of the LED lamp group to be tested : The static evaluation index of the corresponding LED lamp group to be tested The calculation formula is as above.

5. The LED lamp bead lighting test method according to claim 1, characterized in that: When the static evaluation index of the LED lamp group to be tested Exceeding the static threshold of the lamp group + , indicating that the LED lamp bead group to be tested is abnormal, and an abnormal analysis warning of the LED lamp bead group to be tested is issued externally; wherein, It represents the average value of the static evaluation index of the LED lamp bead group to be tested in historical dust. Indicates the variance of the static evaluation index of the historical LED lamp bead group to be tested; When the static evaluation index of the LED lamp group to be tested Does not exceed the static threshold of the lamp group + , it means that the LED lamp bead group to be tested is qualified.

6. The LED lamp bead lighting test method according to claim 1, characterized in that: After receiving the abnormal analysis warning of the LED lamp bead group to be tested, an industrial camera is used to take an image of the LED lamp bead group to be tested, and the Sobel operator is used to calculate the gradient amplitude of each pixel in the image of the LED lamp bead group to be tested. , when the gradient amplitude of the pixel Exceeding the standard gradient amplitude range When , the point is marked as an abnormal pixel point, and the LED lamp beads corresponding to all abnormal pixel points in the image of the LED lamp bead group to be tested are identified and recorded as abnormal lamp beads.

7. The LED lamp bead lighting test method according to claim 1, characterized in that: The identified abnormal lamp beads are reassembled to form an abnormal lamp bead group to be tested, and a high-speed camera is used to shoot a video to extract the brightness value of each frame in the video. , draw the brightness-time curve, and extract the stroboscopic index Ps and stroboscopic percentage Pb; Among them, the flicker index is the ratio of "area above average brightness" to "total area under the curve". The larger the value, the more serious the flicker, and the smaller the value, the milder the flicker. The flicker percentage is the ratio of "difference between maximum brightness and minimum brightness" to "sum of maximum brightness and minimum brightness", multiplied by 100% to get the percentage value. The larger the value, the greater the relative amplitude of brightness fluctuation; the smaller the value, the milder the brightness fluctuation.

8. The LED lamp bead lighting test method according to claim 1, characterized in that: Get the stroboscopic index Ps and stroboscopic percentage Pb of the abnormal lamp bead group to be tested, and calculate the dynamic evaluation index Dp of the abnormal lamp bead group to be tested: in, Indicates the standard stroboscopic index of the LED lamp group. Indicates the standard strobe percentage of the LED lamp group.

9. The LED lamp bead lighting test method according to claim 1, characterized in that: Analyze and calculate the static evaluation index Jp of the abnormal lamp bead group to be tested, and combine it with the dynamic evaluation index Dp of the abnormal lamp bead group to be tested to calculate the abnormal coefficient Yc of the abnormal lamp bead group: When the abnormal coefficient of the abnormal lamp bead group exceeds the standard abnormal coefficient , and send out warnings of abnormal lamp bead production; Among them, the analysis method of the static evaluation index Jp of the abnormal lamp bead group to be tested is the same as the static evaluation index Jp of the LED lamp bead group to be tested. The analysis method is the same.

10. An LED lamp bead lighting test device, used to implement the method described in any one of claims 1 to 9, characterized in that: include: Lamp bead abnormality analysis module, collects the brightness of the LED lamp bead group to be tested and color temperature , calculate the static optical evaluation coefficient of the LED lamp group to be tested , and collect the working voltage of the LED lamp group to be tested , Current and power , calculate the static electrical evaluation coefficient of the LED lamp group to be tested ; Lamp bead abnormal warning module, obtains the static optical evaluation coefficient of the LED lamp bead group to be tested and static electrical evaluation coefficient , calculate the static evaluation index of the LED lamp group to be tested , and send out an abnormal analysis warning of the LED lamp bead group to be tested; After receiving the abnormal analysis warning of the LED lamp bead group to be tested, the abnormal lamp bead analysis module identifies all abnormal LED lamp beads in the LED lamp bead group to be tested, recombines them to form an abnormal lamp bead group to be tested, extracts the stroboscopic index Ps and the stroboscopic percentage Pb, calculates the dynamic evaluation index Dp and the static evaluation index Jp of the abnormal lamp bead group to be tested, calculates the abnormal coefficient Yc of the abnormal lamp bead group, and issues an abnormal warning of lamp bead production.

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