One of Japan's largest exhibitions featuring the latest in drone technology has opened in Chiba City, near Tokyo.
About 240 companies and organizations are taking part in the event.

Last December, the government changed the law to allow so-called Level four flights in which drones fly beyond the operator's line of sight in urban areas.

KDDI SmartDrone, a subsidiary of major telecom firm KDDI, demonstrated a remote-controlled flight of a drone located about 40 kilometers from the venue.

The drone uses the Starlink satellite communication network, and can fly in areas with poor wireless coverage. The company expects the drone to be used for construction projects in mountainous regions where there is a worker shortage.
KDDI SmartDrone President Hirono Masafumi said that he believes telecommunications companies have a big role to play in introducing technology into society. He said the company also take this as a business opportunity.

The exhibition also features drones that can operate in confined spaces. Developer, Liberaware, is showcasing a drone measuring about 20 centimeters in diameter and weighing about 240 grams. The company says it can fly inside smokestacks and attics, and be used for inspections at factories.

The event will run through Wednesday.