Abstract:In order to guarantee that the UAVs could share resources such as test equipments and technical staffs in long distance, a remote fault test and diagnosis system based on DataSocket technology and information fusion theory was designed. The system adopted PXI bus modules as data acquisition equipments, and use DataSocket technology and virtual instruments to realize the data transmission for long distance. The technology based on D-S evidence theory to fusion multiple intelligent diagnosis algorithms was used to improve the accuracy of diagnosis. At the same time, for the conveniences of fault information management, the database was used to store diagnosis, and B/S structure was used to get the information from long distance. This system can improve the accuracy of diagnosis, realize unified fault information management, reduce costs and improve efficiency, so it has application value.