Disclosed is a training evaluation device for a vehicle having a first input interface for receiving a recording of a sign given by a road user, and a second input interface for receiving a driver control command corresponding to the sign, wherein the training evaluation device propagates an artificial neural network with the recording of the sign and the driver control command to obtain a vehicle control command in the propagation of the artificial neural network, and adjusts weighting factors such that the vehicle control command matches the driver control command, for the machine learning of a meaning of the sign. A method for training an artificial neural network, a working evaluation device for an automatically operated vehicle, a driver assistance system, and a method for recognizing a meaning of a sign and for indicating a vehicle reaction to a known meaning of this sign are also disclosed.

A light emitting sign apparatus including an optical fiber includes: an outer frame including an accommodation space having an opened front side; a front panel covering the front side of the outer frame, the front panel including first front emission holes; a light source module located in the accommodation space, the light source module including at least one light source; first front optical fibers having one ends connected to the first front emission holes and the other ends optically coupled to the at least one light source; at least one outer illumination sensor located in the accommodation space; and outer optical fibers having one ends connected outer emission holes provided in the outer frame and the other ends optically coupled to the at least one outer illumination sensor.

A light emitting sign apparatus including an optical fiber includes: an outer frame including an accommodation space having an opened front side; a front panel covering the front side of the outer frame, the front panel including first front emission holes; a light source module located in the accommodation space, the light source module including at least one light source; first front optical fibers having one ends connected to the first front emission holes and the other ends optically coupled to the at least one light source; at least one outer illumination sensor located in the accommodation space; and outer optical fibers having one ends connected outer emission holes provided in the outer frame and the other ends optically coupled to the at least one outer illumination sensor.

A portable barrier device and method of use are disclosed. The device may include a primary body unit, which may include one or more light sources, reflectors, and signs, any of which may be permanently or removably attached, such as by the use of magnets or slots. The device may include a power source, such as a battery, or it may be externally powered. The device may be used to power the light sources or to power or charge peripheral devices. The device may include one or more legs which may be removably attached or may rotate, slide, or otherwise fold out or extend to support the device and create a portable barrier. The device may also include one or more handles to aid in transport of the device. The legs may be manually deployed or using single-handed operation.

A portable barrier device and method of use are disclosed. The device may include a primary body unit, which may include one or more light sources, reflectors, and signs, any of which may be permanently or removably attached, such as by the use of magnets or slots. The device may include a power source, such as a battery, or it may be externally powered. The device may be used to power the light sources or to power or charge peripheral devices. The device may include one or more legs which may be removably attached or may rotate, slide, or otherwise fold out or extend to support the device and create a portable barrier. The device may also include one or more handles to aid in transport of the device. The legs may be manually deployed or using single-handed operation.

A traffic control system and method in which a sensor and processor interact with at least one road module to illuminate and/or cause to flash in response to predetermined road surface and/or traffic conditions. The system and method can be configured to interact with vehicles, including autonomous vehicles, traveling on the road in which the road module(s) are embedded. The road surface and/or traffic conditions include an EMS vehicle located in proximity to a fire hydrant, vehicle located in proximity to a bus stop, a vehicle located in proximity to an intersection with a bicycle and/or pedestrian path intersecting with said road in which said road modules and/or one or more light strips are embedded.

A vision guide with a light guiding rod including rope member formed by twisting plural strands; light guiding rod of circumferentially light emitting type being adheringly wound around spiral indentations formed between strands on outer circumference of rope member with core layer made of acrylic-based resin and clad layer made of fluorine-based resin; and light source attached to end portion of light guiding rod, wherein amount of change luminance of light guiding rod in test time over duration of 1000 hours by accelerated weathering tester is contained within range of ?10%; amount of change in each numerical value of chromaticity [x, y] is contained within range of ?0.02; flexural modulus of elasticity of light guiding rod under atmosphere of ?20 degrees Centigrade is contained at range of 0.5-5.0?10.sup.3 MPa; rope member is formed by twisting strands at twisting angle from 10?-20?; and spiral indentations are uniformly formed with pitch from 100 mm-200 mm.

A system for illuminating a carriageway in a case of fog includes a road safety barrier arranged along the carriageway, at least one fog density detecting device arranged along the road safety barrier, and a plurality of light sources borne by the road safety barrier, distributed along the road safety barrier, and oriented for each to emit a light beam having a direction that is transversal to an extension axis of the road safety barrier so as to illuminate signage on the carriageway. A control unit that is connected to the light sources and to the fog density detecting device is configured to activate the light sources when the fog density detecting device detects a fog density value of above a threshold value.

A system for illuminating a carriageway in a case of fog includes a road safety barrier arranged along the carriageway, at least one fog density detecting device arranged along the road safety barrier, and a plurality of light sources borne by the road safety barrier, distributed along the road safety barrier, and oriented for each to emit a light beam having a direction that is transversal to an extension axis of the road safety barrier so as to illuminate signage on the carriageway. A control unit that is connected to the light sources and to the fog density detecting device is configured to activate the light sources when the fog density detecting device detects a fog density value of above a threshold value.

A light emitting sign apparatus using an optical fiber includes: a front panel including a plurality of emission holes; a plurality of optical fibers having one ends respectively connected to the plurality of emission holes and the other ends constituting a concentrated bundle; and a light source assembly including a plurality of light emitting diodes optically coupled to the other ends of the plurality of optical fibers, wherein the plurality of light emitting diodes are located on a plane. Each of the plurality of light emitting diodes belongs to any one of a plurality of groups, one ends of the plurality of groups are connected to the same node, and different power voltages are applied to the other ends of the plurality of groups.