CN220650852U - Test bench and test system of matrix type LED module - Google Patents
Test bench and test system of matrix type LED module Download PDFInfo
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- CN220650852U CN220650852U CN202322228585.XU CN202322228585U CN220650852U CN 220650852 U CN220650852 U CN 220650852U CN 202322228585 U CN202322228585 U CN 202322228585U CN 220650852 U CN220650852 U CN 220650852U
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- 238000012360 testing method Methods 0.000 title claims abstract description 51
- 239000011159 matrix material Substances 0.000 title claims abstract description 36
- 238000004891 communication Methods 0.000 claims abstract description 15
- 238000004088 simulation Methods 0.000 abstract 1
- 230000003044 adaptive effect Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
Abstract
The utility model discloses a test bench and a test system of a matrix type LED module. The test system comprises a test board, an upper computer and a matrix type LED module. The upper computer and the matrix type LED module are connected with the test board through the CAN bus. The test bench comprises a controller, a CAN communication module, a power module and a status display lamp group. The CAN communication module, the power supply module and the status display lamp set are connected with the controller. The power module comprises a 220V alternating current interface, a 12V storage battery and a power control circuit. The test bench realizes the pixelated partitioned light distribution control test of the matrix type LED module through the simulation of the automobile self-adaptive headlamp controller.
Description
Technical Field
The utility model relates to a matrix type LED module light distribution test.
Background
Along with the development of intellectualization and safety in the field of automobile illumination, an adaptive headlamp control system is gradually popularized. The lamps adopted by the self-adaptive headlamp control system are matrix type LED modules. The self-adaptive control light distribution of the matrix LED module requires the LED module to realize the regional light control of pixelation and photoperiodization, and the complexity is high, so that the light distribution test of the matrix LED module in the development stage is difficult. In the prior art, in order to realize the pixelated partitioned light distribution control test of the matrix type LED module, the pixelated partitioned light distribution control of the LED module needs to be carried out by means of a self-adaptive headlight controller on an automobile. However, the adaptive headlight controller and the matrix LED module are not usually products of the same company, and there is an adaptation problem between the two, and in the absence of the adaptive headlight controller, the matrix LED module is very difficult to test in the development stage.
Disclosure of Invention
The utility model aims to solve the problems that: and when the adaptive headlamp controller is lack, the matrix type LED module is subjected to pixelated partitioning light distribution control test in the development stage.
In order to solve the problems, the utility model adopts the following scheme:
the utility model relates to a test board of a matrix type LED module, which comprises a controller, a CAN communication module, a power supply module and a status display lamp group; the power module comprises a power control circuit and an alternating current interface; the alternating current interface is connected with the controller through a power supply control circuit; the status display lamp group comprises a plurality of status display lamps connected with the controller; the CAN communication module is connected with the controller; the controller is used for receiving the upper computer test instruction through the CAN communication module, and providing direct current voltage required by the test for the matrix type LED module through the CAN communication module to realize the pixelated partitioned light distribution control test of the matrix type LED module.
Further, according to the test stand of the present utility model, the power supply module further includes a storage battery; the storage battery is connected with the controller through a power supply control circuit; the controller is also used for realizing the charge control of the storage battery through the power supply control circuit.
The utility model relates to a testing system of a matrix type LED module, which comprises the testing table, an upper computer and the matrix type LED module; the upper computer and the matrix type LED module are connected with the test board through the CAN bus.
The utility model has the following technical effects: according to the utility model, the pixelated partitioned light distribution control test of the LED module development stage is realized by simulating the self-adaptive headlight controller through the test bench.
Drawings
FIG. 1 is a schematic diagram of a test bench and a test system according to the present utility model.
The test bench comprises a test bench 1, a controller 11, a CAN communication module 12, a power module 13, a power control circuit 131, an alternating current interface 132, a storage battery 133 and a state display lamp set 14; 2 is the upper computer, 21 is CAN-USB conversion card, and 3 is matrix LED module.
Detailed Description
The utility model is described in further detail below with reference to the accompanying drawings.
Fig. 1 illustrates a test system for a matrix LED module. The test system comprises a test bench 1, an upper computer 2 and a matrix type LED module 3 to be tested. The test stand 1 includes a controller 11, a CAN communication module 12 connected to the controller 11, a power module 13, and a status display lamp group 14. The power module 13 includes a power control circuit 131, an ac interface 132, and a battery 133. The ac interface 132 and the battery 133 are connected to the controller 11 through the power control circuit 131. In this embodiment, the ac interface 132 is a 220V ac interface, and the battery 133 is a 12V battery pack formed by a plurality of lithium ion batteries. The power control circuit 131 converts 220V ac power into 12V dc power to supply power to the CAN communication module, except for responding to a control command corresponding to the controller 11. The status display lamp set 14 includes a plurality of status display lamps connected to the controller 11. Status display lamps typically employ LEDs. The controller 11 is connected to the CAN bus 9 via a CAN communication module 12. The upper computer 2 and the matrix type LED module 3 are connected with the test board 1, specifically, the controller 11 through the CAN bus 9. The upper computer 2 is preferably a desktop computer or a notebook computer, and is connected to the CAN bus 9 through a CAN-USB conversion card.
In the present embodiment, the controller 11 is implemented by a microprocessor and a memory. The controller 11 realizes the pixelated partitioned light distribution control test of the matrix LED module 3 by executing a computer program instruction set stored in the memory. That is, the test stand 1 realizes the pixelated partitioned light distribution control test of the matrix type LED module 3 by simulating the automobile adaptive headlamp controller. The controller 11 performs the following functions by executing a set of computer program instructions:
detecting whether the 220V ac power is connected to the ac power interface 132 or not through the power control circuit 131, and the charge capacity of the storage battery 132;
when it is detected that 220V ac is connected to ac power interface 132 and the amount of stored electricity of storage battery 132 is insufficient, charging of the battery of storage battery 132 is started by power supply control circuit 131. When battery 132 is fully charged, the charging of the battery of battery 132 is stopped.
The state of charge and the state of charge of the battery 132 are displayed by the display lamps specified in the status display lamp group 14.
The method comprises the steps of receiving a test instruction sent by an upper computer 2, converting the received test instruction into a pixelated partitioned light distribution control instruction of a matrix LED module 3, sending the pixelated partitioned light distribution control instruction to the matrix LED module 3 through a CAN bus 9, and simultaneously providing 12V direct current voltage required by test for the matrix LED module 3 through a CAN communication module 12 and the CAN bus 9.
And (3) corresponding the pixelated partitioned light distribution control instruction to a corresponding matrix type LED module 3 light distribution state, and displaying the test state through the display lamp specified by the state display lamp group 14.
Further, the power control circuit 131 of the present embodiment includes detection circuits such as power overvoltage, power undervoltage, load open circuit, and load short circuit.
Claims (3)
1. The test board of the matrix LED module is characterized by comprising a controller (11), a CAN communication module (12), a power supply module (13) and a state display lamp group (14); wherein the power supply module (13) comprises a power supply control circuit (131) and an alternating current interface (132); the alternating current interface (132) is connected with the controller (11) through the power supply control circuit (131); the status display lamp group (14) comprises a plurality of status display lamps connected with the controller (11); the CAN communication module (12) is connected with the controller (11); the controller (11) is used for receiving an upper computer test instruction through the CAN communication module (12) and providing direct current voltage required by the test for the matrix type LED module through the CAN communication module (12) so as to realize the pixelated partitioned light distribution control test of the matrix type LED module.
2. The test bench according to claim 1, characterized in that the power supply module (13) further comprises a battery (133); the storage battery (133) is connected with the controller (11) through the power supply control circuit (131); the controller (11) is also used for realizing the charge control of the storage battery (133) through the power supply control circuit (131).
3. A test system of matrix LED modules, characterized by comprising a test bench (1) according to claim 1 or 2, an upper computer (2) and a matrix LED module (3); the upper computer (2) and the matrix type LED module (3) are connected with the test board (1) through the CAN bus (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322228585.XU CN220650852U (en) | 2023-08-18 | 2023-08-18 | Test bench and test system of matrix type LED module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322228585.XU CN220650852U (en) | 2023-08-18 | 2023-08-18 | Test bench and test system of matrix type LED module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220650852U true CN220650852U (en) | 2024-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322228585.XU Active CN220650852U (en) | 2023-08-18 | 2023-08-18 | Test bench and test system of matrix type LED module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220650852U (en) |
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2023
- 2023-08-18 CN CN202322228585.XU patent/CN220650852U/en active Active
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