An autonomous sweeping robot cleans the road in a park in Shenzhen, South China's Guangdong Province on October 11, 2022. As one of the Chinese cities with the most complete robotics industry chain, the total output value of Shenzhen's robotics industry reached 158.2 billion yuan ($22.1 billion) in 2021, with the number of robotics enterprises totaling 945. Photo: VCG