CN218301706U

CN218301706U - LED health monitoring system

Info

Publication number: CN218301706U
Application number: CN202221913832.9U
Authority: CN
Inventors: 曹智勇; 王子骏; 师嘉仪; 张馨月; 李泽坤; 蒋俊康; 刘颖奇; 张慧琴
Original assignee: Changan University
Current assignee: Changan University
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2023-01-13
Anticipated expiration: 2032-07-22

Abstract

An LED health monitoring system comprises a central control module, an LED driving module, an LED illuminating module, a state monitoring module, a weather sensing module and a human-computer interaction module; the LED driving module, the weather sensing module and the man-machine interaction module are all connected to the central control module; the LED driving module is connected with the LED illuminating module, and a state monitoring module is arranged between the LED illuminating module and the central control module; the utility model discloses a plurality of characteristic parameter to LED lighting system monitor, can reflect the health status of LED light source and power simultaneously. The utility model discloses LED is at the electrical property under room temperature, the electric current not, can accurately reflect LED's electrical property under the different operating condition, provides the reference for the health status monitoring.

Description

LED health monitoring system

Technical Field

The utility model belongs to the technical field of the intelligent lighting technology and specifically relates to a LED health monitoring system is related to.

Background

The LED has many advantages such as high brightness, energy saving, and low price, so that it is gradually becoming a mainstream product in the illumination field. Although the reliability of LED devices is gradually improved with the continuous development of the technology and process level. However, at the same time, LED reliability has many problems unique to itself compared to other light fixtures:

(1) The LED is a point-shaped light source, the generated heat is concentrated in a micro area, the power density is high, the heat dissipation is difficult, the junction temperature is easy to rise, and the device is easy to degrade;

(2) After the LED is used for a period of time, the light color performance of the LED is reduced along with the aging of the device;

(3) The LED driving power supply structure is more complex compared with other types of power supply structures, and the power supply failure and invalidation problems caused by aging of components are more serious.

Therefore, although the theoretical lifetime of an LED can reach 10 ten thousand hours, in practical applications, temperature, humidity, current, etc. are important factors affecting the reliability and lifetime of the LED, making the lifetime significantly less than the expected lifetime. Therefore, it is very important to research the reliability and monitor the health status of the LED lighting system.

For high-power LEDs, particularly important public places such as stages and stadiums, the health state of the LEDs can be detected and evaluated more significantly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a LED health monitoring system to solve above-mentioned problem.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an LED health monitoring system comprises a central control module, an LED driving module, an LED illuminating module, a state monitoring module, a weather sensing module and a human-computer interaction module; the LED driving module, the weather sensing module and the man-machine interaction module are all connected to the central control module; the LED driving module is connected with the LED illuminating module, and a state monitoring module is arranged between the LED illuminating module and the central control module;

the weather sensing module is used for collecting real-time weather data;

the state monitoring module is used for monitoring real-time working state data of the LED lighting module;

the human-computer interaction module is used for inputting LED illumination requirements including illumination time periods and brightness, and an alarm threshold value of the early warning module and a sampling interval of the state detection module;

the central control module is used for outputting a control signal of the LED lighting module according to the data of the man-machine interaction module or the weather sensing module;

the LED driving module is used for outputting an output signal for controlling the LED brightness;

the display early warning module is used for displaying weather parameters, predicted values of the LED lighting modules and real-time working state data;

the LED lighting module is used for emitting light with corresponding brightness according to the control signal of the LED driving module.

Furthermore, the central control module is a positive atom stm32f103zet6 singlechip development board.

Further, the LED driving module comprises a 220V-to-5V AC-DC power conversion module, a risym direct-current voltage stabilizing module and a telesky photoresistor module, and the power conversion module, the risym direct-current voltage stabilizing module and the telesky photoresistor module are sequentially connected.

Furthermore, the LED lighting module is composed of mixed-connected LED lamps.

Further, the weather sensing module comprises a temperature and humidity sensor DHT11, a smoke sensor MQ-2 and a PM2.5 sensor GP2Y1014AU.

Further, the status monitoring module includes an ACS712 hall current detection module and a power detection module IM1253B.

Furthermore, the central control module is also connected with a display early warning module, and a TFT display screen is used for displaying the state data of the LED lighting module.

Further, the weather data includes outdoor brightness, air temperature, and humidity.

Further, the predicted values include current, voltage drop and housing temperature of the LED lighting module; the operating condition data includes current, voltage drop, and housing temperature of the LED lighting module.

Compared with the prior art, the utility model discloses there is following technological effect:

the utility model discloses a plurality of characteristic parameter to LED lighting system monitor, can reflect the health status of LED light source and power simultaneously.

The utility model discloses establish LED at the electrical property under room temperature, electric current not, can accurately reflect LED's electrical property under the different operating condition, provide the reference for the health status monitoring.

Drawings

Fig. 1 is a system structure diagram of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

an LED health monitoring system comprises a central control module, an LED driving module and a control module, wherein the central control module adopts a punctuation atom stm32f103zet6 singlechip development board and can be adjusted according to illumination intensity;

the device comprises a Jiaxin micro-digital 220V-to-5V AC-DC power conversion module, a risym direct current voltage stabilizing module and a telesky photoresistor module;

the LED illumination module with adjustable brightness consists of mixed-connected LED lamps;

the state monitoring module comprises an ACS712 Hall current detection module and a power detection module IM1253B;

the weather sensing module comprises a temperature and humidity sensor DHT11, a smoke sensor MQ-2 and a PM2.5 sensor GP2Y1014AU and a man-machine interaction module, and comprises a high-confidence electronic matrix keyboard module and a TFT LCD display screen; the LED driving module, the weather sensing module and the man-machine interaction module are all connected to the central control module; the LED driving module is connected with the LED illuminating module, and a state monitoring module is arranged between the LED illuminating module and the central control module;

the weather sensing module is used for collecting real-time weather data;

and the central control module is used for outputting a control signal of the LED lighting module according to the data of the man-machine interaction module or the weather sensing module.

The central control module is also connected with a display early warning module, uses a TFT display screen and is used for displaying the state data of the LED lighting module.

Weather data includes outdoor brightness, air temperature and humidity.

The predicted values comprise current, voltage drop and shell temperature of the LED lighting module; the operating condition data includes current, voltage drop, and housing temperature of the LED lighting module.

Claims

1. An LED health monitoring system is characterized by comprising a central control module, an LED driving module, an LED illuminating module, a state monitoring module, a weather sensing module and a human-computer interaction module; the LED driving module, the weather sensing module and the man-machine interaction module are all connected to the central control module; the LED driving module is connected with the LED illuminating module, and a state monitoring module is arranged between the LED illuminating module and the central control module;

the weather sensing module is used for collecting real-time weather data;

the central control module is used for outputting a control signal of the LED lighting module according to data of the human-computer interaction module or the weather sensing module;

the LED driving module is used for outputting an output signal for controlling the brightness of the LED;

2. The LED health monitoring system of claim 1, wherein the central control module is a punctual atomic stm32f103zet6 single chip microcomputer development board.

3. The LED health monitoring system of claim 1, wherein the LED driving module comprises a 220V to 5V AC-DC power conversion module, a risym DC voltage stabilization module and a telesky photoresistor module, and the power conversion module, the risym DC voltage stabilization module and the telesky photoresistor module are connected in sequence.

4. The LED health monitoring system of claim 1, wherein the LED lighting module comprises a hybrid LED lamp.

5. The LED health monitoring system of claim 1, wherein the weather sensing module comprises a temperature and humidity sensor DHT11, a smoke sensor MQ-2 and a PM2.5 sensor GP2Y1014AU.

6. The LED health monitoring system of claim 1, wherein the status monitoring module comprises the ACS712 Hall current detection module and the power detection module IM1253B.

7. The LED health monitoring system of claim 1, wherein the central control module is further connected to a display pre-warning module using a TFT display screen for displaying status data of the LED lighting module.

8. The LED health monitoring system of claim 1, wherein the weather data includes outdoor brightness, air temperature and humidity.

9. The LED health monitoring system of claim 1, wherein the predicted values include current, voltage drop, and case temperature of the LED lighting module; the operating condition data includes current, voltage drop, and housing temperature of the LED lighting module.