SERVICE VEHICLE WITH DRONE BASES

A service vehicle provides a platform for servicing a container handling vehicle while on a grid-based rail system of a three-dimensional storage grid of an automated storage system for storing storage containers. The service vehicle includes two or more wheel modules. Each module having a first set of wheels configured to move the vehicle along a first lateral direction of the grid-based rail system and a second set of wheels configured to move the vehicle along a second lateral direction of the grid-based rail system. The second direction is perpendicular to the first direction. A platform is mounted on the two or more wheel modules. The platform includes an enclosure that has at least one opening that can be closed by a barrier. The platform has a set of tracks matching the width of the tracks on the grid.