Hoya Robot able to go into burning buildings

Hoya is a rolling robot that resembles the Sony
Rolly, and travels at one foot per second. It has a range of 54 yards, and can transmit images of what is inside. It also has onboard lights to illuminate its path, and it can check a burning building for temperature, smoke, and gas.

The Hoya can withstand temperatures of up to 320 degrees Fahrenheit, is water resistant, and can withstand drops of six feet. It can operate up to 30 minutes without charging.

The Hoya robot took two years to develop with help from the Ministry of Knowledge Economy, and 50 fire stations in Korea are planned to receive 100 units for testing.

If this works, I would like to know how many lives this robot saves per year. I would also like to know how to get the Hoya up a flight of stairs.