Design of Point to Point Data Link System in Small Unmanned Helicopter

A secure and reliable data link transmission systems was needed to control unmanned helicopter flight in distance. The system was based on CM-t3530 that was a embedded core board produced by Compulab company,and to merging and coding the unmanned helicopter remote controller signal,the controller parameters and target queue.Using point to point data link communication protocol and defined the message standard of data link communication,realized the real-time transmission of the data that was between unmanned helicopter and ground station. Experimental results show that the point to point data link system can effectively solve the problem of long-distance communication,and it can meet the requirements of long-distance flight of unmanned helicopter.