In order to save the image data of UAV during flight,SD card is generally used as the storage device.However,in practical application,SD card can only be manually removed for data copy after the UAV operation task,and the data in SD card cannot be obtained,viewed or previewed in real time.In this paper,an SD card time-sharing multiplexing circuit is designed using multiplexer chip to realize the SHARING of SD data,and then the remote reading of SD card is realized through Raspberry PI and 4G communication module.The experiment results show that the scheme effectively avoids the problem of frequently inserting and removing SD cards to read data,improves the convenience and real-time of data acquisition,and has important engineering application value.
Key words
SD card /
UAV /
remote reading /
multiplexing /
data sharing
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