机场助航灯具光轴检测系统设计

摘要

Considering the requirements of domestic airport navigation maintenance, existing problems and light-emitting characteristics, a design of optical axis detecting system of navigation light based on FPGA and CCD is proposed. Combination of FPGA and CCD is one of the features of this system, and key techniques are discussed emphatically,including selection of system sensor,modular design of FPGA and PCI bus transmission technology. System calibration is carried out , and the collected datas are processed by centroid algorithm. By detecting.offline lamps in the laboratory, this system is proved to be stable and reliable, and meets the actual needs of measurement%针对我国机场助航灯具维护需求、存在的问题和助航灯具的发光特性,介绍了一种基于现场可编程门阵列(FPGA)和CCD的助航灯具光轴检测方法的设计.采用FPGA与CCD相结合的硬件架构,重点讨论了系统传感器的选取,FPGA模块化设计,PCI总线传输等关键技术,进行了系统标定并用质心算法处理采集到的数据.通过实验室离线灯具测试,该系统工作稳定,可靠性好,能满足测量的实际需要.