Multi methods of signal analysis and fault diagnosis , such as wavelet transform , emd analysis and fault diagnosis based on neural network , are provided in the system . by message board , users can ask for help if they happen to meet some problems . they can also bring forward their opinions and suggestion about this system to make remote maintenance more and more mature 此远程维护系统提供了多种诊断信号分析方法和多种故障诊断方法，如小波分析、 emd分析、神经网络故障诊断、 cbr专家系统等；同时，通过留言板用户还可以针对特殊疑难故障请求远程维护中心的帮助，或对本系统提出改进意见和建议。
