| The unmanned aerial vehicles(UAV) were originally used for military field, it began to be used for civilian areas more than ten years. Small UAV in civilian areas become more and more popular, the path planning and track related technology the data link by scientific workers of various departments.This article describes the field of SUAV in civil applications as well as SUAV research status of key technologies, analysis of the current UAV data link in the route planning and lack of respect, and studied in these two areas:1 presents a geometric method based on three-dimensional route planning method, this method is proposed to fully take into account the following two aspects:(1) small unmanned aircraft in civilian areas in the less threatening conditions, abandoned the field of UAV in military applications of complex threat conditions.(2) the traditional route of basic civil UAV flying point to point with the horizontal plane, this method of route planning is the only disadvantage of autonomous navigation in the horizontal plane, there is the deviation of the accuracy.2 Propose a data link mode based on 3G wireless network.The design of this data link is the airborne part of the main ground station only needs to access some Internet terminals can be. Airborne Data Link hardware with S3C2440 processor core, a powerful portable linux network operating system. PPP dial-up through the establishment and WCDMA network connection, and airborne data links embedded Web server on the device portable. Airborne data links and ground stations for information exchange is conducted through dynamic web pages, in order to avoid increasing the burden on the server, using platform-independent Java Applet technology and flexible human-computer interaction. The ground station in the client browser supports Java VM can only run the program. Control interface through the Java Applet can be achieved on the UAV itself and the remote control of camera equipment. |
