Tech helps companies branch out to lift sales

Robust development of the digital economy and services sector in the coastal city of Qingdao, Shandong province, has improved people's lives and seen a number of local enterprises that diversified their product ranges enjoy increased sales.

Zou Yansong, vice-president of Qingdao Hisense Trans Tech, said a decade of research by the company on traffic congestion had helped traffic in the city flow more freely.

He said its key product, widely applied in daily life, is the "congestion killer", a smart transportation system that solves urban traffic bottlenecks by adjusting traffic lights in a timely manner if a road is blocked by an accident.