Intelligent Remote System Of High-Power White LED Micro-Coating

The phosphor coating and packaging of white light LEDs is the most important part of the production process,and this process directly affects the luminous effect and quality of white light LED products.At present,many white LED phosphor coatings are completed by mechanical coating equipment.However,the operation of mechanical equipment will inevitably fail.When the production scale is relatively large,a large amount of human resources will be consumed,and there may be problems with the production equipment and supervision.For the phosphor coating process for white LEDs,slight deviations in production parameters will seriously affect the quality and performance of LED products,so it is necessary to monitor the production process parameters in real time to ensure the quality of white LEDs.At the same time,the traditional white LED production is based on experience or prior experiments to determine the relevant coating parameters of the phosphor coating equipment,lacking scientific methods as a guide,which is not only time-consuming and laborious,but also difficult to meet the individual production requirements of customers.In order to overcome the above difficulties and further improve the efficiency and intelligence in production,this paper has carried out the following main research work:(1)Review of coating technology and remote monitoring.In this paper,the white LED related technology and production are reviewed,and the characteristics of remote monitoring technology,as well as the advantages of the application to the traditional production process are analyzed.(2)Overall design of remote coating monitoring system.This paper analyzes the key parameters of coating production process,proposes the overall functional requirements of remote monitoring system including remote monitoring terminal equipment,cloud server and remote client,and designs the overall framework of the system to meet the high concurrency,real-time and security of monitoring.(3)Function development and implementation of remote coating system.The key process data collection and upload are realized in the coating terminal,the high-performance cloud server is realized based on the reactor mode,and the database,data communication and coating feedback system are designed.Finally,the remote management and control of LED coating equipment are realized in the monitoring client to realize the remote coating function.(4)Research on spectral distribution model of white LED.Based on the analysis of the phosphor spectrum,a model which can highly fit the spectral distribution of white LED is proposed.The Adam optimization algorithm is improved,and a neural network model with coating parameters as input is designed to predict the spectral distribution and luminous quality of LED.(5)Experimental study and analysis of spectral prediction.The experimental results show that the prediction model can better predict the light quality,and provide the basis for the design of coating scheme for the personalized needs of customers.