基于.NET平台的LED光电参数测量系统设计与实现

Design and Implementation of the Testing System for LED Optoelectronic Parameters Based on .NET Platform

提高LED的光学和电学参数的测量精度与效率对于确保LED的产品质量、满足市场需求具有重要的意义。根据企业中LED的实际生产情况,给出了一种基于.NET平台的LED/板上芯片(COB)光电参数快速测量系统的软硬件设计方案。该系统通过可替换结构实现LED/COB多规格测量;通过与上层生产过程执行系统(MES)系统或企业资源规划(ERP)系统数据交互实现在线测量;通过设备各个独立运动部件的协同配合实现快速测量;通过光谱仪中线性电荷耦合元件(CCD)各个像素与LED波长的对应关系,实现了全光谱同时测量;通过对测量数据的处理,实现了基于LED光电和色度参数的自动分选。实验验证结果表明,系统能够有效提高LED光电参数测量的精度与效率。

It is great significance to improve the measurement accuracy and efficiency of LED optoelectronic parameters for promoting the quality of LED products and meeting market demands.According to the LED＇s actual producting conditions in the enterprise,a hardware and software design scheme for fast testing system of LED/chip on board（ COB） photoelectric parameters based on.NET platform were presented.LED/COB multi-specification measurement was realized with replaceable structure in the system.Online measurement was realized through data interaction with the manufacturing execution system（ MES） or enterprise resource planning system（ ERP）.Fast measurement was realized through the coordination and cooperation of individual moving parts of the equipment.Full spectrum simultaneously measurement was realized by the corresponding relationship between the various pixels of the linear CCD in the spectrometer and the LED wavelength.Automatic sorting was realized based on optoelectronic and color imetric parameters by the processing of the measurement data of the LEDs.The test results show that the system can effectively improve the measurement efficiency and accuracy of LED optoelectronic parameters.