A cover device for gratings, having a planar support (1) and a plurality of holding elements (20) which protrude at a bottom side (7) of the support (1), wherein a plurality of elevations (10) and recesses (11) are provided on an upper side (6) of the support (1).

A raised floor and an assembling method thereof includes a plurality of raised floor boards, wherein a plurality of raised floor boards are assembled and connected to form an integrated floor, an edge of the integrated floor close to the wall is supported by a leveling beam, and leveling screws are arranged below connecting positions of two adjacent raised floor boards, a reserved expansion joint is arranged between the edge of the integrated floor and the wall, and a position above the integrated floor close to the wall is fixedly connected with frame beam by an expansion screw. An edge of the raised floor board body structure is processed, so that the raised floor boards can be assembled through lap joint and connection of structures, and supported through the leveling screws when they are in mutually lap joint for assembly.

A portable support platform may include a plurality of elongate segments arranged substantially parallel and adjacent to one another. The segments may be configured for spanning a space between two support points to support a user. The platform may also include a tying portion configured for flexibly securing the plurality of segments together. The platform may be arranged in a substantially flat open position for supporting a user and a substantially rolled up closed position for convenient transport and storage.

An infrastructure floor tile for supporting and positioning a server rack in a datacenter includes a body including top, bottom and side surfaces and a first alignment surface on the top surface. The first alignment surface includes at least one of a projection and a recess. When a server rack is positioned on the first alignment surface of the infrastructure floor tile, the server rack is aligned by the first alignment surface relative to the body. N horizontal channels extend from one of the side surfaces to an opposite one of the side surfaces, where N is an integer greater than one. N vertical channels extending from the top surface of the body to the N horizontal channels, respectively. Power, cooling fluid and/or data lines are connected to the server rack through at least one of the N horizontal channels and at least one of the N vertical channels.

An infrastructure floor tile for supporting and positioning a server rack in a datacenter includes a body including top, bottom and side surfaces and a first alignment surface on the top surface. The first alignment surface includes at least one of a projection and a recess. When a server rack is positioned on the first alignment surface of the infrastructure floor tile, the server rack is aligned by the first alignment surface relative to the body. N horizontal channels extend from one of the side surfaces to an opposite one of the side surfaces, where N is an integer greater than one. N vertical channels extending from the top surface of the body to the N horizontal channels, respectively. Power, cooling fluid and/or data lines are connected to the server rack through at least one of the N horizontal channels and at least one of the N vertical channels.

A surface within a facility, such as a floor, is equipped with electromagnetic sensors that generate data indicative of the presence of objects, such as the feet of users, at or close to the floor. The data may also be indicative of cross-coupling resulting from a transfer of an electromagnetic signal by the object, such as from one foot to another of a user. The data is processed to determine presence of individual object representations, such as representing a foot. Information about object representations such as their movement, cross-coupling, physical distance between, or features of the object representation may be determined. This data may be used to maintain the identity of particular object representations, track object representations over time, determine that particular object representations are associated with a single user and so forth. Adjacent object representations may avoid merging by using a top-down cross sectioning technique.

An apparatus for destroying pathogens includes a platform and an LED matrix panel. The platform has a portion configured to permit passage of ultraviolet light therethrough. The LED matrix panel is disposed below the portion of the platform and includes a grid and a plurality of discreetly-controlled, ultraviolet light LEDs (UV LEDs). The grid defines a plurality of cells. Each UV LED is associated with one cell such that the cells direct the ultraviolet light emitted by the UV LEDs upwardly through the portion of the platform to sanitize an object supported on the portion of the platform.

The present invention is a modular structural building system and method consisting of prefabricated, precast, composite reinforced concrete raised floor and steel beam panels with adjustable levelling connection assemblies between panels, supported by columns. The system has the ability to accommodate the use of the floor by construction personnel during the on-site assembly process. The perimeter of the raised floor slab can be provided with ducts for a field installed conventional reinforcement means to create a continuous structural diaphragm for the floor panel.

An amusement system features an interactive floor with an array of panels laid out in one or more grids to collectively define an interactive floor surface, an illumination system operable to individually illuminate each panel, and a sensing system operable to detect presence of any participant atop any panel. A base frame of the interactive floor is composed of a plurality of base modules seated on a subfloor, and supporting a respective panel for one or more cells of the interactive floor. The base modules are not directly fastened together, and instead are only intercoupled by perimeter seals applied over peripheral regions of the panels of neighbouring modules. Separation of the modules is constrained by surrounding walls of a room fully occupied by the interactive floor. In gameplay, some panels are distinctively illuminated as hazards to be avoided by participants, subject to penalty.

An apparatus for destroying pathogens includes a platform and an LED matrix panel. The platform has a portion configured to permit passage of ultraviolet light therethrough. The LED matrix panel is disposed below the portion of the platform and includes a grid and a plurality of discreetly-controlled, ultraviolet light LEDs (UV LEDs). The grid defines a plurality of cells. Each UV LED is associated with one cell such that the cells direct the ultraviolet light emitted by the UV LEDs upwardly through the portion of the platform to sanitize an object supported on the portion of the platform.