The invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to a multi-unmanned aerial vehicle synchronous positioning and mapping method based on block chain
information security enhancement. According to the invention, the data uploaded by the unmanned aerial vehicle can be stored in a non-tampering manner at the
server side by combining the block chain technology, and the function of the
group key is dynamically adjusted according to the state of the unmanned aerial vehicle, so that the unmanned aerial vehicle can be ensured to flexibly and safely join or exit from the network in different states; therefore, the flexibility and
fault tolerance of an unmanned aerial vehicle network are improved, a plurality of unmanned aerial vehicles collect and upload
local map data at the same time, the
server can integrate the data to form a larger regional map, the precision and efficiency of
environmental perception are improved, the redundancy is reduced, the reliability is improved, and the unmanned aerial vehicles can realize high-precision map construction. Meanwhile, the
chain structure of the block chain ensures the historical
traceability of each data block, and ensures that the source of map data is clear and the process is transparent.