Photo/IllutrationSmart trash cans being tested at the Huis Ten Bosch theme park in Sasebo, Nagasaki Prefecture (Provided by Huis Ten Bosch)

SASEBO, Nagasaki Prefecture--Smart trash cans that measure the quantity of garbage inside them and radio staff members when full are being tested at the Huis Ten Bosch theme park here.

The park operator expects the device to help improve the work efficiency of its staff.

The smart trash can was developed jointly by online technology developer GMO Cloud KK in Tokyo and an HTB-affiliated robot company.

The trial was started in late November and is expected to continue through early 2018.

The level of trash is measured with sensors and notifications are sent to the park staff by radio when the quantity exceeds a certain level. Workers can also check the amount of rubbish with their smartphones and computers.

The new dustbin will save its staff the time taken to visually check the amount of trash inside the bins.