A display device for a walker is disclosed which has a panel having a front side, a back side, a left side edge, a right side edge, a top side edge, and a bottom side edge, an interior pocket formed between the front side and the back side, a series of grommets positioned along the left side edge of the panel, a series of grommets positioned along the right side edge of the panel, and a closure device positioned along the top side edge.

A display device for a walker is disclosed which has a panel having a front side, a back side, a left side edge, a right side edge, a top side edge, and a bottom side edge, an interior pocket formed between the front side and the back side, a series of grommets positioned along the left side edge of the panel, a series of grommets positioned along the right side edge of the panel, and a closure device positioned along the top side edge.

Disclosed is a method of operating a moving robot including receiving a touch input or a voice input including a predetermined keyword, determining a guidance destination based on the predetermined keyword, creating a route to the determined guidance destination, moving along the created route, and displaying an advertisement image based on the predetermined keyword, thereby improving advertising effects and user satisfaction.

A traffic warning device includes a reflective warning plate and a foldable driving mechanism. The foldable driving mechanism includes a supporting bracket; a warning sign mounted to an upper side of the supporting bracket, and a plurality of walking or motion units mounted to a lower side of the supporting bracket. Each walking unit includes a supporting leg, a wheel rotatably connected to an end of the supporting leg, and a fastening unit. The other end of the supporting leg is rotatably connected to the supporting bracket. The supporting leg is rotatable between a folded position and a deployed position. The foldable driving mechanism is also disclosed.

A traffic warning device includes a reflective warning plate and a foldable driving mechanism. The foldable driving mechanism includes a supporting bracket; a warning sign mounted to an upper side of the supporting bracket, and a plurality of walking or motion units mounted to a lower side of the supporting bracket. Each walking unit includes a supporting leg, a wheel rotatably connected to an end of the supporting leg, and a fastening unit. The other end of the supporting leg is rotatably connected to the supporting bracket. The supporting leg is rotatable between a folded position and a deployed position. The foldable driving mechanism is also disclosed.

A control system for maintaining a traffic warning triangle at a constant speed when deployed, notwithstanding rises and falls in the road surface, includes a driver, a driving controller, a detector, and a processor. The driving controller controls the driver to drive the mobile warning triangle to move on a road at a predetermined speed. The detector obtains information as to the road. The processor outputs control signals to the driving controller to control the mobile warning triangle to move at the constant predetermined speed when moving. A control method of the mobile warning triangle is also provided.

A mobile robot includes a driver configured to provide a traveling function, a body disposed at an upper side of the driver, and formed to include an inclined surface protruding downward at front and rear surfaces thereof, a body frame disposed in the body, and one pair of displays coupled to the body frame, and disposed at front and rear surfaces of the body. The body frame includes body profiles disposed at left and right sides of the body frame, and formed to extend in a vertical direction, and display supports fixed to the body profiles to extend in forward and backward directions, and respectively coupled to the pair of the displays.

A mobile robot includes a driver configured to provide a traveling function, a body disposed at an upper side of the driver, and formed to include an inclined surface protruding downward at front and rear surfaces thereof, a body frame disposed in the body, and one pair of displays coupled to the body frame, and disposed at front and rear surfaces of the body. The body frame includes body profiles disposed at left and right sides of the body frame, and formed to extend in a vertical direction, and display supports fixed to the body profiles to extend in forward and backward directions, and respectively coupled to the pair of the displays.

A license plate holder includes a frame defining a central opening to permit display of indicia on license plate display region(s) of a license plate and defining frame display region(s) adjacent the central opening. A transmissive substrate includes one or more connectors to removably connect the transmissive substrate to a license plate base. In an assembled state with the transmissive substrate removably connected to the license plate base via the connector(s) and the frame interposed between the transmissive substrate and the license plate base, a central region of the transmissive substrate is positioned in front of the central opening and the license plate display region(s) and a peripheral region of the transmissive substrate is positioned in front of the frame display region(s).

A system to exhibit subjective messages on a vehicle including a memory, controller, transceiver, external display, camera, image recognition module, and technology platform. The memory is configured to comprise modules of executable instructions. The controller is configured to read and execute the modules. The transceiver is configured to communicate data transmissions. The external display is configured to exhibit information on the vehicle, visible in the external environment. The camera is configured to capture an image of the vehicle environment. The executable instructions enable the controller to: receive an image of the vehicle environment comprising a selected object; perform the image recognition module to identify the selected object; receive the results of the image recognition module; communicate the results to the technology platform; receive subjective message information from the technology platform; and operate the external display to exhibit the subjective message information to the vehicle environment.