A signaling device for increasing visibility of a mobile robot. The signaling device comprises (a) a base section, attached with a rotational joint to a side of the mobile robot, said rotational joint allowing the device to rotate clockwise and/or anticlockwise relative to the mobile robot, the rotational joint constructed and adapted to return the device to an equilibrium position; and (b) a body section comprising a mast, the body section flexibly attached to the base section at a lower extreme of the body section.

Provided is a digital billboard for vehicle. The technical gist of the present disclosure is that it can be installed in various vehicles such as buses and trucks, and can deliver advertisement contents to more citizens while driving, so that advertisers can quickly deliver advertisement contents or achieve advertising purpose, thereby maximizing the effect expected by advertisers. As a vehicle provided with a digital billboard travels, advertising contents can be imprinted in the minds of people due to dynamic visibility. In doing so, it is possible to easily achieve purposes intended by advertisers. In the event of a malfunction of the billboard, it is possible to easily replace the digital billboard firmly fixed in a sliding manner in an advertisement frame.

A placard frame comprises a first frame member and a second frame member spaced from the first frame member and extending therefrom at a margin, wherein the first and second frame members and the margin define an interior space adapted to receive a placard. A projection is disposed on one of the first frame member and the second frame member at a location one of at and adjacent to the margin wherein the projection extends into the interior space. Further, a slot is in communication with the interior space.

A license plate locking system is provided that will prevent theft of a license plate. The license plate locking system of the present invention comprises a hollow body, wherein said hollow body comprises an opening, a locking mechanism and a protrusion. The opening in the hollow body provides access to a plate holder device, such as a screw, wherein said plate holder device is positioned inside said hollow body and covered by non-removable cover with resilient properties rendering the screws inaccessible. This prevents the removal of the registration tags or license plate by unauthorized persons.

Systems and methods for exterior signage evaluation are disclosed herein. An example method includes receiving images of an exterior signage area of an exterior surface of a first vehicle, the images being obtained by the first vehicle, a second vehicle camera or an infrastructure camera, determining current environmental conditions around the first vehicle, processing the images of the exterior signage area using the current environmental conditions, wherein processing includes comparing an expected appearance of the exterior signage area with an actual appearance of the exterior signage area to determine a visual appearance quality of the exterior signage area, and presenting a message on a display that includes the visual appearance quality.

The invention includes a novel oscillating display device, system, and assembly configured to be mounted to an external surface and allow dynamic oscillation movement of a personalized display in response to an external force, such as air flow generated by the movement of a vehicle, while maintaining the display in an approximately horizontal position relative to an external viewer. The oscillating display of the invention may further include one or more marketing messages or advertisements to be displayed to a viewer.

The present invention is a display system affixed to the side panels of a truck whereby the system includes a cover configured for protecting the display from environmental damage.

The mounting bracket systems are used in pairs to support a banner on a vehicle. In a first embodiment, the system includes opposing masts having upper and lower extending tabs adapted for attaching a banner between the masts, an annular flange disposed around the mast, and a lower mast end inserted into a bushing attached to a vehicle by U-shaped mounting straps. In a second embodiment, the system includes opposing masts having upper and lower extending tabs adapted for attaching a banner between the masts. The bottom end of each mast is attached to a platform having an elongate U-shaped pocket insert having planar walls extending from the platform opposite the mast. The pocket inserts are adapted for insertion into stake pockets common to trucks and trailers that haul oversize loads. A clevis pin may be inserted through opposing walls of the pocket insert below the stake pocket.

A device according to the present invention provides for an improved display card holder assembly and methods of operation. Wherein the improved assembly provides for a sleeve, collar and holder in removable communication to increase stability and reduce vibration of the card holder assembly. The assembly providing for a first embodiment comprising a holder comprising a button mechanism and nodes, and a sleeve comprising tabs and extensions, for increased stability. The assembly providing for a second embodiment comprising a holder comprising a lever mechanism, and at least one of an over-mold and assembled sleeve/collar combination, for increased stability. The assembly providing for a third embodiment comprising a holder comprising a hinge mechanism for increased stability. The invention further providing for methods of operation of the embodiments.

A device for securing a display to a vehicle grill is disclosed, where the device includes a display holder that can hold license plates. The device includes a holder frame having a first end, a first side panel, and a second side panel, where the first end is configured to hold a display. A first hook and second hook are configured to engage a first portion of a front grill of a vehicle. Levers are connected to sliders and a handle bar connects the first lever to the second lever. The hook of the first slider and the hook of the second slider are configured to engage a second portion of the front grill of the vehicle. Together, the lower hooks and upper hooks lock onto the vehicle grill to secure the device with four points of contact in multiple locations.