Chinese drone giant DJI is expected to launch a vacuum cleaning robot in a move set to intensify competition in the country’s crowded robotic cleaner market, according to a report by the state-backed financial newspaper China Securities Journal, citing internal sources. Shenzhen-based DJI will introduce a combination vacuum cleaner and mopping robot this month, a project that has been under development over the past four years, according to the report. The product is called DJI ROMO, according...