Abstract: An elevator system can include an elevator car comprising an elevator floor, the elevator car connected to a control system, wherein the elevator floor is configured to enable a rolling device to roll from a floor level onto the elevator floor, an elevator wireless communication module connected to the control system, an elevator framework in which the elevator car is configured and an elevator motor configured to raise and lower the elevator car as instructed by a mobile robot and as controlled by the control system according to instructions to the elevator system received via the elevator wireless communication module. The elevator system can be attached to a rack of shelves and be used to autonomously move mobile robots up and down to or from respective shelfs and/or a floor level.

Abstract: An apparatus having a self-contained hydraulic power module in operable communication with the apparatus, the module capable of being readily connected and disconnected to the apparatus for ready installation and/or replacement of the module as desired.