A smart landing pad comprises a flexible display that shows images or patterns, and a protective layer over the display. The protective layer allows a UAV to land without damaging the display. Locator and range finder devices, coupled to the display, communicate with the UAV. The display is operative for wireless communications with a computer or mobile device that provides on-demand user functions, allowing for dynamically changing or customizing the images/patterns shown on the display. The images/patterns comprise a background area showing changeable images that match an environment where the landing pad is placed, and a target landing area surrounded by the background area. The target landing area includes a changeable insensitive, contrast portion, and changeable marker pattern portions having changeable colors/shapes. The images/patterns also include changeable QR codes on the target landing area. The display is IoT enabled so that data from the landing pad is remotely cloud accessible.

A convertible display includes a number of video display panels which are movable between a first position in which the panels extend in the same plane to define a unified display and a configuration in which one or more of the panels are moved into other planes which allow them to form steps. Multiple of the rotated panels may form a sequence of steps, e.g. a staircase. The convertible display may be moved via a robotic mount, whereby the position or orientation of the convertible display may be changed.

A simulative system includes a tombstone replica and at least one receiver peg receivable in a non-rotatable manner within a corresponding at least one slot embedded in an underside of the tombstone replica. The at least one receiver peg has a non-circular cross-section. A corresponding at least one stake is removably, slidably receivable in a non-rotatable manner within the at least one receiver peg. The at least one stake includes an upper, male connector portion for receipt into a respective receiver peg and a lower, post section having a pointed tip for driving into a ground surface.

The present invention discloses a display structure comprising at least one display module, wherein the display structure comprises at least one substrate layer comprising polymer, glass, ceramic or composite materials and integrated electrically conductive circuitry with electronics, where applicable, and light emitting devices; at least one electrically conductive layer, enabling intelligent control of the light emitting devices; wherein a display module comprises at least one coating or molded layer protecting the display structure from moist and other environmental effects; the display structure further comprises, when applicable, a number of structured, through-holes reaching through the whole display structure; the display structure is configured to be constructed from smaller, manufacturable sized display modules by interconnecting suitable amount of display modules into rows and columns; and the display structure is applicable to harsh environments comprising ice and outdoor conditions. Various coating layers and materials can be selected for the ice application use and for the outdoor use. The corresponding manufacturing method is also part of the inventive concept.

A variable traffic safety sign is useful in informing road users of the possibility of a surface of a road or bridge section being wet or frozen without using an additional external power source by exactly expressing freezing and wet roadbed conditions of the road or bridge section using a thermochromic paint and a humidity indicator paint, and also allowing road drivers to exactly recognize the roadbed conditions of the road or bridge section by displaying the freezing and wet roadbed conditions of the road or bridge section conditions in response to changes in temperature and humidity, respectively. Also, the variable traffic safety sign is readily applicable to structures such as a bridge crash barrier, a traffic safety sign board, a bridge guardrail, a road shoulder, and an inner part, entrance and exit of a tunnel.

A landscape feature placement tool, system, and associated methods are disclosed. The landscape feature placement tool can comprise a first segment, a second segment pivotally coupled to the first segment, a third segment pivotally coupled to the second segment, a first indicator configured to indicate a first angle between the first segment and the second segment, and a second indicator configured to indicate a second angle between the second segment and the third segment. The first, second, and/or third segments are selectively positioned relative to a reference and the first and/or second angles are selected to determine a location for placement of a landscape feature relative to the reference.

There is disclosed a road sign plate comprising a base plate (2), a series of LEDs (4) arranged on said base plate and supply means associated to said series of LEDs in which, particularly, there is a first resin layer (1) laid on which covers, at least, the base plate (2) and a second resin layer (7) arranged over said first resin layer, wherein said second resin layer (7) is of a translucent material. This road sign plate is not expensive, features great capacity of mechanical strength and electric resistance and improved translucency properties.

The application provides a floor tile screen, comprising a box body (1), a rear body (2), a PCB board (3) and a front body (4), wherein the rear body (2) is fixed on the box body (1); the PCB (3) is arranged between the rear body (2) and the front body (4), and provided with lamp beads; a plurality of transparent fixing columns (41) are fixedly arranged on the front body (4), pass through the PCB board (3), fixedly connected with the rear body (2), and avoid the lamp beads. The fixing column (41) has the function of limiting the front body (4), the front body (4) and the rear body (2) are connected together by fixing columns (41), to avoid separation; the fixing columns (41) are transparent, so that the light emitted by the lamp beads is not blocked, the display effect of the floor tile screen is improved.

A billboard which is formed as a dasher board (600) and adapted for use in a video content replacement system (400) is described. The dasher board (600) comprises at least one non-visible radiation source (604) arranged to emit non-visible radiation toward a light guide plate (602). The light guide plate (602) is arranged to distribute the non-visible radiation over the light guide plate (602) and radiate the non-visible radiation away from the dasher board (600). An area of the light guide plate (602) over which non-visible light is distributed from is correlated to an area of the dasher board (600) which is to be replaced in the video content replacement system (400). There is also described is a billboard (700) similarly adapted for use in a video content replacement system (400) and which comprises an electronic display, as well as a method of retrofitting an existing billboard (10) ready for use in a video content replacement system (400).

A method for installing an advertising unit on a ground surface includes cleaning an installation area located at the ground surface, applying an adhesive at the installation area, depositing the advertising unit at the installation area atop the adhesive, and curing the adhesive. In some embodiments, the advertising unit comprises a back unit having a track which accommodates a cover in a sliding fashion. In some embodiments, the installation area may be excavated to render an upper surface of the advertising unit flush with the surface of the ground when deposited.