Drones learn to search forests for lost hikers

Each year, thousands of hikers and bushwalkers go missing in the wilderness. Now Swiss and Italian researchers have written software that allows drones to navigate tracks and trails in search for lost people. Belinda Smith reports. With the new drones, missing persons can be found and rescued quickly in forests and mountain areas.Credit: UZH/USI/SUPSI Imagine: on a bushwalk in the wilderness, you fall and break your leg. Your personal locator beacon is nowhere to be found, you’ve run out of food and it’s getting dark. Far from any mobile phone reception, your only option is to wait for help … which, in the middle of nowhere on a rarely used track, could take days. But after a few hours you hear a buzzing noise. Suddenly, around the bend flies a…


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