无人机可以用来投送信件、药品、急救用品和食品。它们具有飞得快、可以自主飞行、不受交通拥堵的影响、甚至在没有道路的情况下也可以运作等优点。如今,已经有很多公司在进行无人机小包裹投送的商业试验,工程师们也在不断研发新型无人机,以跟上电商行业的飞速发展。洛桑联邦理工学院开发了一种新型无人机,一次飞行距离可达2千米,专门用来投送不超过500克的包裹。这款无人机能自动避让障碍物,能飞到不平整甚至陡峭的目的地。最大的创新是它自带保护笼。保 UAVs can be used to deliver letters, medicines, first aid supplies and food. They have the advantages of flying fast, flying autonomously without being affected by traffic jams, and even operating without roads. Today, many companies are already conducting commercial trials of the delivery of small drone packages. Engineers are also constantly developing new types of unmanned aerial vehicles to keep up with the rapid growth of the e-commerce industry. EPFL has developed a new type of UAV that can fly up to 2 km in one flight and is designed to deliver parcels up to 500 grams. The drone automatically avoids obstacles and can fly to uneven or even steep destinations. The biggest innovation is that it comes with cage protection. Paul