NEWS

Using drone to inspect damage state of sewer

2020.06.19

 

We carried out inspection with the industrial drone to check the damage state of sewer.

 

Because the slippery ground, we must to pay more attention to fly drone than before.

Also,it’s very dark in the sewer.

We were shooting a crack of 0.2 mm from a distance of 1.5 m by 20-megapixel camera while we illuminated.