CN215449495U

CN215449495U - LED module detection circuit and device

Info

Publication number: CN215449495U
Application number: CN202121489332.2U
Authority: CN
Inventors: 王礼忠
Original assignee: Shenzhen Pti Technology Co ltd
Current assignee: Shenzhen Pti Technology Co ltd
Priority date: 2021-07-01
Filing date: 2021-07-01
Publication date: 2022-01-07
Anticipated expiration: 2031-07-01

Abstract

The utility model provides a detection circuit and a device of an LED module, which are used for detecting an LED-RGB lamp panel and comprise: the LED detection circuit, the main control board and the upper computer; the main control board is connected with the LED-RGB lamp panel and controls the LED-RGB lamp panel; the LED detection circuit is respectively connected with the main control board and the LED-RGB lamp panel and used for detecting LED parameters of the LED-RGB lamp panel; the upper computer is connected with the main control board and used for providing an operation interface for detecting LED parameters. The circuit provided by the utility model has the advantages of small volume, convenience in test, high test accuracy, rapidness in testing the LED module by programming a program through software, simplicity in manufacturing and low material cost.

Description

LED module detection circuit and device

Technical Field

The utility model belongs to the field of LED modules, and particularly relates to an LED module detection circuit and device.

Background

The LED module is a product formed by arranging LEDs (light emitting diodes) together according to a certain rule and then packaging the LEDs, and is a product formed by waterproof treatment, namely an LED module which is mainly used for displaying the night effect of advertising fonts (acryl and plastic uptake) and marks, takes characters or marks as media and is installed on the top or wall surface of a building, not only can show the daytime effect of the marks, but also can utilize the LEDs as a light emitting source to show the other effect at night, and is matched with an LED lighting application control system to carry out dynamic video control on the characters or the marks.

With the wide application of the LED module, the existing scheme for detecting the LED module has no fixed detection template, and can search for different LED light sources to test the quality of the channels of the LED module, the LED module has 12 channels to detect the color brightness and frequency of the LED, if 12 different LED light sources are searched to detect, the detection efficiency is low, and the detection precision of the existing detection scheme for the color brightness, the frequency and the like is not high.

In conclusion, the existing LED module detection scheme has the technical problems of low efficiency and low precision.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem, the present invention provides a detection circuit and device for an LED module, comprising:

in one aspect, the present invention provides a detection circuit for an LED module, which is used for detecting an LED-RGB lamp panel, and includes: the LED detection circuit, the main control board and the upper computer; the main control board is connected with the LED-RGB lamp panel and controls the LED-RGB lamp panel; the LED detection circuit is respectively connected with the main control board and the LED-RGB lamp panel and used for detecting LED parameters of the LED-RGB lamp panel; the upper computer is connected with the main control board and used for providing an operation interface for detecting LED parameters.

Preferably, the main control board is provided with a first interface and a second interface, the first interface is connected with the LED detection circuit, and the second interface is connected with the LED-RGB lamp panel.

Preferably, the main control board is connected with the LED-RGB lamp panel through a GPIO interface, and the LED-RGB lamp panel is controlled through the GPIO interface.

Preferably, the main control board controls the switching relay to light the LED-RGB lamp panel through the GPIO.

Preferably, the main control board is connected with the LED detection circuit through a Link Port.

Specifically, the LED detection circuit includes a color sensor and a CPLD, and the main control board transmits and receives data related to the color sensor through the CPLD.

Preferably, the LED detection circuit and the LED-RGB lamp panel are connected by an optical fiber.

Preferably, the upper computer is connected with the main control board through USB communication.

Further, the LED detection circuit detects color measurement RGB, color measurement HSV, chromaticity measurement XYZ, brightness measurement, and frequency measurement of the LED-RGB lamp panel.

In another aspect, the present invention provides an LED module detection apparatus, which includes the LED module detection circuit described in any one of the above.

Compared with the prior art, the utility model has the beneficial effects that:

Drawings

Fig. 1 is an overall circuit diagram of an LED module inspection according to the present invention.

Fig. 2 is a circuit diagram of an LED detection control circuit according to the present invention.

Fig. 3 is a control circuit of an LED-RGB lamp panel according to the present invention.

Illustration of the drawings:

1. an upper computer; 2. a main control board; 3. an LED detection circuit; 4. LED-RGB lamp plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the utility model described later can be combined with each other as long as they do not conflict with each other.

Before describing the embodiments of the present invention, the present specification will first describe the motivation of the present invention in conjunction with the prior art so that those skilled in the art can better understand the inventive contributions of the present invention.

The existing scheme for detecting the LED module has no fixed detection sample plate, different LED light sources can be found to test the quality of the channels of the LED module, the LED module has 12 channels to detect the color brightness and the frequency of the LED, if 12 different LED light sources are found to detect, the detection efficiency is low, and the existing detection scheme has low detection precision on the color brightness, the frequency and the like.

The utility model aims to provide an LED module detection circuit, which solves the problems of low detection efficiency and low detection precision in the prior art.

Referring to fig. 1, the present invention provides an LED module detection circuit for detecting an LED-RGB lamp panel 4, which mainly includes: the LED detection circuit 3, the main control board 2 and the upper computer 1; the main control board 2 is connected with the LED-RGB lamp panel 4 and controls the LED-RGB lamp panel 4; the LED detection circuit 3 is respectively connected with the main control board 2 and the LED-RGB lamp panel 4 and used for detecting LED parameters of the LED-RGB lamp panel 4; the upper computer 1 is connected with the main control board 2 and is used for providing an operation interface for detecting LED parameters.

It should be noted that the upper computer 1 may be a background computer or other existing technologies.

It should be noted that, the LED-RGB lamp panel 4 is provided with 12 LEDs, and the LED module to be detected is provided thereon; the main control board 2 is provided with programmable devices such as mcu, Arm and the like, and can be used for realizing programmable testing of the LED module;

the upper computer 1 is used for providing an operation interface for detecting LED parameters and is connected with the main control board 2, and preferably, the upper computer 1 is connected with the main control board 2 through USB communication.

The main control board 2 needs to be connected with the LED detection circuit 3 and the LED-RGB lamp panel 4, two connection interfaces, namely an interface A and an interface B, are arranged on the main control board 2, the interface A is connected with the LED detection circuit 3, and the second interface is connected with the LED-RGB lamp panel 4. The main control board 2 needs to be connected with the LED detection circuit 3 and the LED-RGB lamp panel 4 and can select multiple connection modes, preferably, the first interface on the main control board 2 is a 10pin oxhorn interface, the second interface is a 20pin oxhorn interface, the 10pin oxhorn interface is connected with the LED detection circuit 3, the 20pin oxhorn interface is connected with the LED-RGB lamp panel 4, and the oxhorn interface is a common interface, so that the whole circuit is simple to manufacture and low in cost.

It should be noted that the main control board 2 is connected to the LED-RGB lamp panel 4 through a GPIO interface, and the LED-RGB lamp panel 4 is controlled through the GPIO interface. The GPIO has the characteristics of low power consumption, small package, low cost, no need of writing extra codes and documents, no need of any maintenance work and the like, and the LED-RGB lamp panel 4 can be controlled with low cost and high efficiency through the GPIO.

Further, the main control board 2 controls the switching relay to light the LED-RGB lamp panel 4 through the GPIO, referring to fig. 3, 8 relays are arranged to control the 4 relays to light four colors-RGBW of the LED, and other 4 relays control the brightness of the LED, so that the functions of 12 channels of the LED module can be tested, and the isolation function of the relays can play a good protection role.

Referring to fig. 2, the main control board 2 is connected with the LED detection circuit 3 through a Link Port, the LED detection circuit 3 includes a color sensor and a CPLD, the main control board 2 sends and receives data related to the color sensor through the CPLD, and the color sensor selects the TCS 3400.

The LED detection circuit 3 is connected with 12 RGBWs on the LED-RGB lamp panel through optical fibers so as to obtain the LED color brightness and the flicker frequency, and the LED color brightness and the flicker frequency detection precision can be improved by adopting the optical fiber connection.

Further, the upper computer 1 issues a parameter detection instruction through the LED parameter detection interface, and the parameter detection instruction reaches the LED detection circuit 3 through the main control board 2, so that parameters of the LED-RGB lamp panel, such as color measurement RGB, color measurement HSV, chromaticity measurement XYZ, brightness measurement, and frequency measurement, can be detected, and the detected parameters are uploaded to the upper computer 1 through the main control board 2.

It should be noted that the parameter signals of color measurement RGB, color measurement HSV, chromaticity measurement XYZ, brightness measurement and frequency measurement are the terms commonly used by those skilled in the art.

The utility model provides an LED module detection device which comprises the LED module detection circuit.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. The utility model provides a LED module detection circuitry for detect LED-RGB lamp plate, its characterized in that includes: the LED detection circuit, the main control board and the upper computer; the main control board is connected with the LED-RGB lamp panel and controls the LED-RGB lamp panel; the LED detection circuit is respectively connected with the main control board and the LED-RGB lamp panel and used for detecting LED parameters of the LED-RGB lamp panel; the upper computer is connected with the main control board and used for providing an operation interface for detecting LED parameters.

2. The LED module detection circuit of claim 1, wherein the main control board has a first interface and a second interface, the first interface is connected to the LED detection circuit, and the second interface is connected to the LED-RGB lamp panel.

3. The LED module detection circuit of claim 1, wherein the main control board is connected with the LED-RGB lamp panel through a GPIO interface, and the LED-RGB lamp panel is controlled through the GPIO interface.

4. The LED module detection circuit of claim 3, wherein the main control board controls the switching relay to light the LED-RGB lamp panel through the GPIO.

5. The LED module detection circuit of claim 1, wherein the main control board is connected to the LED detection circuit through a Link Port.

6. The LED module detection circuit of claim 1, wherein said LED detection circuit comprises a color sensor and a CPLD, and said main control board transmits and receives data related to said color sensor through the CPLD.

7. The LED module detection circuit of claim 1, wherein the LED detection circuit and the LED-RGB light panel are connected by optical fibers.

8. The LED module detection circuit of claim 1, wherein said host computer is connected to said main control board via USB communication.

9. The LED module detection circuit of claim 1, wherein the LED detection circuit detects color measurements RGB, color measurements HSV, chromaticity measurements XYZ, luminance measurements, and frequency measurements of the LED-RGB light panel.

10. An LED module testing apparatus comprising the LED module testing circuit of any one of claims 1 to 9.