A woman sees a robot doctor in Beijing, April 1, 2020. [Photo/Xinhua]

An employee uses voice to control an elevator at a hospital in Beijing, March 16, 2020. [Photo/Xinhua]

An employee shows an AI digital human infrared thermometer in Beijing, March 16, 2020. [Photo/Xinhua]

An employee shows an intelligent telephone robot for epidemic prevention in Beijing, March 16, 2020. [Photo/Xinhua]