Photo taken on April 18, 2018 shows sensors on top of a driverless street sweeper in Shanghai, East China. Two driverless street sweepers have been employed for trial run in Shanghai Tus-Caohejing Science Park recently.[Photo/Xinhua]
Photo taken on April 18, 2018 shows a driverless street sweeper in Shanghai, East China. [Photo/Xinhua]
Photo taken on April 18, 2018 shows a driverless street sweeper in Shanghai, East China. [Photo/Xinhua]
A staff shows trails of a driverless street sweeper in Shanghai, East China, April 18, 2018. [Photo/Xinhua]
