A launch ceremony for the WIOT advertising campaign is held in Wuxi on Aug 28. [Photo/wxrb.com]

A passenger scans the expo's QR code on a metro train in Wuxi. [Photo/wxrb.com]

Metro trains and stations across Wuxi are emblazoned with posters promoting the upcoming 2017 World Internet of Things Expo, which will be held in the city on Sept 10-13.

Commuters can also find out more about the expo by scanning the QR codes on the posters.

Eight buses on lines 133 and 88 are also covered with WIOT posters to promote the event to more people.