An illuminating bow roller assembly to facilitate loading a watercraft onto a trailer under dark conditions is disclosed. Example components of the assembly include a pair of end bells, a roller, and a yoke into one or more of which lighting elements are recessed into, and a fastening assembly to connect the components to form the assembly. Generally, the lighting elements are arranged such that light therefrom is emitted toward one or more of the end bells and roller. The end bells and roller are composed of a translucent material that propagates light emitted from the lighting elements, which extends illumination to areas surrounding the bow roller assembly in addition to the bow roller assembly itself. A water-activated switch can be implemented to control the illumination of the assembly such that the lighting elements only emit light when the trailer is contacting water.

An illuminating bow roller assembly to facilitate loading a watercraft onto a trailer under dark conditions is disclosed. Example components of the assembly include a pair of end bells, a roller, and a yoke into one or more of which lighting elements are recessed into, and a fastening assembly to connect the components to form the assembly. Generally, the lighting elements are arranged such that light therefrom is emitted toward one or more of the end bells and roller. The end bells and roller are composed of a translucent material that propagates light emitted from the lighting elements, which extends illumination to areas surrounding the bow roller assembly in addition to the bow roller assembly itself. A water-activated switch can be implemented to control the illumination of the assembly such that the lighting elements only emit light when the trailer is contacting water.

The disclosure relates to a projection system and an operation method thereof. The projection system includes a central control platform and a projection apparatus. The central control platform generates a sequence signal according to a self-defined setting. The projection apparatus is coupled to the central control platform and includes a power circuit, a first processing circuit, and an optical engine module. The power circuit passes the sequence signal through an energy storage element to generate a power supply. The first processing circuit performs an operation based on the power supply to generate a decoding result according to the sequence signal. The optical engine module obtains image information according to the decoding result and generates a display image according to the image information.

A refuse vehicle includes a chassis, a vehicle body supported by the chassis, a lift assembly, and a projector. The vehicle body defines a receptacle for storing refuse. The lift assembly is configured to selectively engage a waste container. The lift assembly is movable between a first position and a second position. The projector is positioned to emit light outwardly away from the refuse vehicle and proximate the lift assembly to define a target area.

A refuse vehicle includes a chassis, a vehicle body supported by the chassis, a lift assembly, and a projector. The vehicle body defines a receptacle for storing refuse. The lift assembly is configured to selectively engage a waste container. The lift assembly is movable between a first position and a second position. The projector is positioned to emit light outwardly away from the refuse vehicle and proximate the lift assembly to define a target area.

Systems and methods for moving an illumination spot of a searchlight beam at a constant groundspeed. The method includes receiving state data comprising an attitude for the mobile platform. The method computes an elevation angle, theta, of the beam as a function of the attitude, an elevation actuator angle and a known mounting orientation for the searchlight. Responsive to receiving a searchlight control command from a user input device, the method determines a respective rate of change of theta, dtheta/dt, and rate of change of Psi, dPsi/dt, required to maintain the constant groundspeed of the illumination spot, as a function of the state data. The method updates theta responsive to the determined dtheta/dt and generates actuator control commands for an elevation actuator based thereon. The method updates Psi responsive to the determined dPsi/dt, and generates actuator control commands for an azimuth actuator based thereon.

A vehicle may include: a camera configured to obtain a surrounding image of the vehicle; and a controller configured to derive spatial recognition data by learning the surrounding image of the vehicle as an input value, derive object recognition data including wheel area data of surrounding vehicles by learning the surrounding image of the vehicle as an input value, determine a ground clearance between a bottom surface of a vehicle body of the surrounding vehicle and a ground by use of the spatial recognition data and the wheel area data, and control the vehicle to park the vehicle by reflecting the ground clearance.

Off-road lighting control systems and methods are disclosed herein. An example vehicle can include off-road lighting mounted to an outside of the vehicle, as well as a controller including a processor and memory. The processor executes instructions in memory to determine a category of a road that the vehicle is located on using location-based information and automatically control the off-road lighting based on the category of the road.

The lighting management system includes: a judgement unit configured to judge whether or not a lighting state around a vehicle based on a first lighting apparatus and a second lighting apparatus meets a first reference for a light amount and a second reference for at least one of a lighting range, a lighting color, and a flashing state; a first control unit configured to control the light amount of at least one of the first lighting apparatus and the second lighting apparatus so that the lighting state is brought to meet the first reference; and a second control unit configured to control at least one of the lighting range, the lighting color, and the flashing state of at least one of the first lighting apparatus and the second lighting apparatus so that the lighting state is brought to meet the second reference.

The lighting management system includes: a judgement unit configured to judge whether or not a lighting state around a vehicle based on a first lighting apparatus and a second lighting apparatus meets a first reference for a light amount and a second reference for at least one of a lighting range, a lighting color, and a flashing state; a first control unit configured to control the light amount of at least one of the first lighting apparatus and the second lighting apparatus so that the lighting state is brought to meet the first reference; and a second control unit configured to control at least one of the lighting range, the lighting color, and the flashing state of at least one of the first lighting apparatus and the second lighting apparatus so that the lighting state is brought to meet the second reference.