Photo taken on Sept. 16, 2022 shows the indoor exhibition area of 2022 World Intelligent Connected Vehicles Conference in Shunyi District of Beijing, capital of China. The four-day 2022 World Intelligent Connected Vehicles Conference kicked off at China International Exhibition Center here Friday. (Xinhua/Ren Chao)

Photo taken on Sept. 16, 2022 shows an unmanned sweeper displayed at the outdoor exhibition area of 2022 World Intelligent Connected Vehicles Conference in Shunyi District of Beijing, capital of China. The four-day 2022 World Intelligent Connected Vehicles Conference kicked off at China International Exhibition Center here Friday. (Xinhua/Ren Chao)

Photo taken on Sept. 16, 2022 shows the outdoor exhibition area of 2022 World Intelligent Connected Vehicles Conference in Shunyi District of Beijing, capital of China. The four-day 2022 World Intelligent Connected Vehicles Conference kicked off at China International Exhibition Center here Friday. (Xinhua/Ren Chao)

Photo taken on Sept. 16, 2022 shows the outdoor exhibition area of 2022 World Intelligent Connected Vehicles Conference in Shunyi District of Beijing, capital of China. The four-day 2022 World Intelligent Connected Vehicles Conference kicked off at China International Exhibition Center here Friday. (Xinhua/Ren Chao)

(Resource:Xinhua)