Systems and methods are disclosed for floor-based antennas for wireless communication in robotic environments. In one embodiment, an example wireless communication system may include a first antenna embedded in a concrete floor structure, where the first antenna may be configured to transmit data to a number of mobile robots in a robotic environment. Individual mobile robots can be configured to transport container pods throughout the robotic environment, and individual container pods may be configured to support a number of inventory containers.

Floor panels which are provided with a mechanical locking system including a displaceable tongue in a displacement groove. The tongue is moulded and provided with bendable protrusions. A building panel having an edge portion provided with a groove, in which a tongue formed as a separate part is received, wherein the tongue includes at least two bow shaped protrusions at a first long edge of the tongue, and wherein the protrusions are arranged bendable in the groove.

Floor panels which are provided with a mechanical locking system including a displaceable tongue in a displacement groove. The tongue is moulded and provided with bendable protrusions. A building panel having an edge portion provided with a groove, in which a tongue formed as a separate part is received, wherein the tongue includes at least two bow shaped protrusions at a first long edge of the tongue, and wherein the protrusions are arranged bendable in the groove.

Water vapor permeable ribbed membranes and related methods are provided. A water vapor permeable ribbed membrane has a top surface and a bottom surface opposite the top surface. The water vapor permeable ribbed membrane comprises a plurality of ribs located on at least the bottom surface. An adhesive layer is located on the plurality of ribs. When the adhesive layer is adhered to a top surface of another water vapor permeable ribbed membrane, the adhesive layer has a peel adhesion of at least 1.5 lb/in, as measured according to ASTM D3330 (Method B). The water vapor permeable ribbed membrane has a water vapor permeability of greater than 10 perms, as measured according to ASTM E96B.

A wall fastener assembly for retaining an attachment such as a girt alongside or near a wall includes an elongated shank that provides space for at least one intermediate wall layer between the girt and a supportive member such as a stud. A center bore extends through the wall fastener assembly, and may receive a fastener for securing the wall fastener assembly to the wall. Once the wall fastener assembly is secured to the wall, a proximally-located flange and a distal end of the shank bottom-out on different surfaces to ensure the attachment is properly mounted to the wall, and a distally-located sealing portion engages with an intermediate wall layer to form a fluid barrier within the wall.