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When the explorers are injured or lost in the wild, they cannot leave their place and turn to the outside world for help.Rescuers cannot quickly reach explorers in a complex field environment，And during the time that aid workers arrive, the stranded may not be able to hold on for a variety of reasons.All I have to do is to quickly find the explorers in distress through unmanned aerial vehicles, and obtain the data of the explorers themselves and their surrounding environment, put in the rescue supplies, and establish a stable network platform, in order to ensure that the explorers minimal injury.