CN214413086U

CN214413086U - Real-time detection system based on LED operating condition

Info

Publication number: CN214413086U
Application number: CN202120519048.9U
Authority: CN
Inventors: 韦海
Original assignee: Dongguan Wordop Automation Technology Co ltd
Current assignee: Dongguan Wordop Automation Technology Co ltd
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2021-10-15
Anticipated expiration: 2031-03-11

Abstract

The utility model relates to the technical field of LED detection, in particular to a real-time detection system based on LED working state, which comprises a light source system; the light source system comprises an LED module, a current sampling module and a first main control module; the LED module comprises a plurality of LED lamp strings; each LED lamp string is provided with a plurality of LED lamp beads connected in series; the current sampling module comprises a plurality of resistors; an LED lamp string is connected with a resistor in series; the first main control module is used for detecting the current of the resistor on each LED lamp string. The utility model discloses a set up LED module, current sampling module and first host system, can detect the electric current of the resistance on each LED lamp cluster to whether this LED lamp cluster has the trouble can be known according to comparing the back with the default to first host system, realizes LED's real-time detection function.

Description

Real-time detection system based on LED operating condition

Technical Field

The utility model relates to a LED detects technical field, concretely relates to real-time detection system based on LED operating condition.

Background

In the field of machine vision inspection, the illumination light source is used for illuminating features, so that the gray value difference between the features and the background is maximized, and therefore, the illumination light source is required to have high brightness, and the brightness must be uniform.

The existing light source module adopts a plurality of LED lamp beads to be connected in series, then the power is increased in a parallel connection mode, and the LED lamp beads are uniformly distributed on a PCB (printed circuit board), so that the brightness uniformity of a light source is ensured.

Because of the LED production equipment of manufacturers, there is a probabilistic manufacturing process deviation, and certain defective rate can exist in the same batch of LED lamp beads. Such as short service life, large internal resistance, direct short circuit, etc. And the LED lamp bead works normally in a short time, and common equipment cannot be distinguished. When the LED lamp is in the market, the phenomena of local burning out, brightness, light attenuation and the like of a light source can occur due to long-time work, if the phenomena are not found in time, the shooting of a device camera or picture analysis and the like can be influenced, and great troubles are brought to the use of an application end client.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned among the prior art not enough, provide a real-time detection system based on LED operating condition.

The purpose of the utility model is realized through the following technical scheme: a real-time detection system based on LED working state comprises a light source system; the light source system comprises an LED module, a current sampling module and a first main control module; the LED module comprises a plurality of LED lamp strings; each LED lamp string is provided with a plurality of LED lamp beads connected in series; the current sampling module comprises a plurality of resistors; an LED lamp string is connected with a resistor in series;

the first main control module is used for detecting the current of the resistor on each LED lamp string.

The utility model is further arranged that a LED lamp string is connected with a resistor in series to form a detection branch; the detection branches are mutually connected in parallel.

The utility model is further arranged that one end of the LED lamp string is connected with the power supply; the other end of the LED lamp string is grounded through a resistor.

The utility model is further arranged that the first main control module is provided with a plurality of detection ports; and one detection port is arranged between the LED lamp string and the resistor of one detection branch circuit.

The utility model discloses further set up as, the real-time detection system based on LED operating condition still includes the controller; the controller is electrically connected with the light source system.

The utility model discloses it is further arranged that, the light source system also includes a first wireless module; the controller is provided with a second main control module and a second wireless module; the second main control module is connected with the second wireless module; the first main control module is connected with the first wireless module; the first wireless module is in wireless connection with the second wireless module.

The utility model is further arranged that the controller is provided with a display module; the display module is electrically connected with the second main control module.

The utility model is further provided with that the controller is provided with a brightness adjusting module; the brightness adjusting module is electrically connected with the second main control module.

The utility model has the advantages that: the utility model discloses a set up LED module, current sampling module and first host system, can detect the electric current of the resistance on each LED lamp cluster to whether this LED lamp cluster has the trouble can be known according to comparing the back with the default to first host system, realizes LED's real-time detection function.

Drawings

The invention is further described with the aid of the accompanying drawings, in which, however, the embodiments do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived from the following drawings without inventive effort.

FIG. 1 is a schematic block diagram of the present invention;

fig. 2 is a circuit diagram of the invention in which the LED module is matched with the current sampling module;

fig. 3 is a schematic diagram of a first main control module of the present invention;

fig. 4 is a schematic diagram of a first wireless module of the present invention;

fig. 5 is a schematic diagram of a second main control module of the present invention;

fig. 6 is a schematic diagram of a second wireless module according to the present invention;

wherein: 1. an LED module; 2. a first master control module; 21. a detection port; 3. LED lamp beads; 4. a resistance; 5. a second master control module; 6. a first wireless module; 7. a second wireless module; 8. a display module; 9. and a brightness adjusting module.

Detailed Description

The invention will be further described with reference to the following examples.

As can be seen from fig. 1 and fig. 6, the real-time detection system based on the LED working status according to the present embodiment includes a light source system; the light source system comprises an LED module 1, a current sampling module and a first main control module 2; the LED module 1 comprises a plurality of LED lamp strings; each LED lamp string is provided with a plurality of LED lamp beads 3 which are connected in series; the current sampling module comprises a plurality of resistors 4; an LED lamp string is connected with a resistor 4 in series;

the first main control module 2 is used for detecting the current of the resistor 4 on each LED lamp string.

Specifically, the real-time detection system based on the LED working state according to this embodiment can detect the current of the resistor 4 on each LED string by setting the LED module 1, the current sampling module, and the first main control module 2, so that the first main control module 2 can know whether the LED string has a fault after comparing with a preset value, thereby implementing the real-time detection function of the LED.

In the real-time detection system based on the LED working state described in this embodiment, an LED string and a resistor 4 are connected in series to form a detection branch; the detection branches are mutually connected in parallel. Specifically, this embodiment is equipped with two LED lamp pearls 3 on every LED lamp cluster through setting up three LED lamp cluster and three resistance 4 to form three parallelly connected detection branch road, make the structure more reasonable.

In the real-time detection system based on the working state of the LED in this embodiment, one end of the LED string is connected to a power supply; the other end of the LED lamp string is grounded through a resistor 4. The current of the resistor 4 is conveniently detected through the arrangement.

In the real-time detection system based on the LED working state according to this embodiment, the first main control module 2 is provided with a plurality of detection ports 21; a test port 21 is provided between the LED string of a test branch and the resistor 4. Specifically, in the present embodiment, the first main control module 2 is provided with three detection ports 21, which are VDD1, VDD2 and VDD3, respectively, and are connected to the three detection branches, so that the working states of the LED strings can be detected simultaneously.

In the real-time detection system based on the LED working status according to this embodiment, the real-time detection system based on the LED working status further includes a controller; the controller is electrically connected with the light source system. Through setting up the controller, be convenient for the user to observe the operating condition of LED and control light source system.

In the real-time detection system based on the LED working state according to this embodiment, the light source system further includes a first wireless module 6; the controller is provided with a second main control module 5 and a second wireless module 7; the second main control module 5 is connected with a second wireless module 7; the first main control module 2 is connected with a first wireless module 6; the first wireless module 6 is wirelessly connected with the second wireless module 7. Through the arrangement, the first main control module 2 and the second main control module 5 are conveniently in wireless connection; the first main control module 2 and the second main control module 5 may be MCUs with ADs; and the first wireless module 6 and the second wireless module 7 can be 485 communication modules.

In the real-time detection system based on the LED working state according to this embodiment, the controller is provided with a display module 8; the display module 8 is electrically connected with the second main control module 5. Through the arrangement, the working state of the LED can be displayed through the display module 8.

In the real-time detection system based on the LED working state described in this embodiment, the controller is provided with a brightness adjustment module 9; the brightness adjusting module 9 is electrically connected with the second main control module 5. The brightness adjusting module 9 can be a button or a knob, after the brightness adjusting module 9 is adjusted, the signal is transmitted to the first main control module 2 after passing through the second main control module 5, the second wireless module 7 and the first wireless module 6 in sequence, and the first main control module 2 adjusts the brightness of the LED.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a real-time detection system based on LED operating condition which characterized in that: comprises a light source system; the light source system comprises an LED module (1), a current sampling module and a first main control module (2); the LED module (1) comprises a plurality of LED lamp strings; each LED lamp string is provided with a plurality of LED lamp beads (3) which are connected in series; the current sampling module comprises a plurality of resistors (4); an LED lamp string is connected with a resistor (4) in series;

the first main control module (2) is used for detecting the current of the resistor (4) on each LED lamp string.

2. The real-time detection system based on the LED working state according to claim 1, characterized in that: an LED lamp string is connected with a resistor (4) in series to form a detection branch circuit; the detection branches are mutually connected in parallel.

3. The real-time detection system based on the LED working state according to claim 2, characterized in that: one end of the LED lamp string is connected with a power supply; the other end of the LED lamp string is grounded through a resistor (4).

4. The real-time detection system based on the LED working state according to claim 3, characterized in that: the first main control module (2) is provided with a plurality of detection ports (21); a detection port (21) is arranged between the LED lamp string of one detection branch circuit and the resistor (4).

5. The real-time detection system based on the LED working state according to claim 1, characterized in that: the real-time detection system based on the LED working state further comprises a controller; the controller is electrically connected with the light source system.

6. The real-time detection system based on the LED working state according to claim 5, characterized in that: the light source system further comprises a first wireless module (6); the controller is provided with a second main control module (5) and a second wireless module (7); the second main control module (5) is connected with the second wireless module (7); the first main control module (2) is connected with the first wireless module (6); the first wireless module (6) is wirelessly connected with the second wireless module (7).

7. The real-time detection system based on the LED working state according to claim 6, characterized in that: the controller is provided with a display module (8); the display module (8) is electrically connected with the second main control module (5).

8. The real-time detection system based on the LED working state according to claim 6, characterized in that: the controller is provided with a brightness adjusting module (9); the brightness adjusting module (9) is electrically connected with the second main control module (5).