The invention discloses an unmanned helicopter
relay data link system. The unmanned helicopter
relay data link system comprises a
relay unmanned helicopter module, a
base station module, a
ground station module, a remote controller module, a
wireless transmitting module, a
wireless receiving module, a relay unmanned helicopter main controller module and a target unmanned helicopter main controller module. The invention also discloses a control method for controlling the unmanned helicopter relay
data link system. The control method comprises the following steps: 1, outputting the parameters of a controller and transmitting the output parameters to the
base station module via a UDP network protocol by the
ground station module; 2, encapsulating acquired flight
control data and task data into one data frame by the
base station module; 3, extracting the
flight data and the task data in a data part respectively; 4, comparing the destination address of the data frame with the local address of an unmanned helicopter; 5, acquiring sensor data; and 6, after the base
station module receives downlink data packets, forwarding the received downlink data packets to the
ground station module. The unmanned helicopter relay data link system has the advantages of low communication cost,
high transmission efficiency, high generality and the like.