红外热成像技术具有不停机、不接触和不解体的优点,逐渐应用在无人机电源系统故障诊断中。简要介绍了红外热成像技术的基本原理及方法流程,并对图像采集、图像预处理、特征参数提取以及模式识别的方法分别进行了详细的对比说明,使得红外热成像技术在无人机电源系统故障诊断应用中更加全面和系统。 Infrared thermography has the advantages of non-stop, non-contact and non-disintegration, and is gradually applied in the fault diagnosis of UAV power system. The basic principle and method flow of infrared thermal imaging technology are briefly introduced. The methods of image acquisition, image preprocessing, feature parameter extraction and pattern recognition are contrastively described in detail. The infrared thermal imaging technology is applied in UAV power system Fault diagnosis applications more comprehensive and systematic.