A vision system for a vehicle towing a trailer includes a camera disposed at a rear portion of the trailer and viewing rearward of the trailer. A trailer antenna is disposed at the trailer and in data communication with the camera, and a vehicle antenna is disposed at the vehicle and in data communication with a control unit disposed at the vehicle. The trailer antenna is operable to transmit signals representative of image data captured by the camera toward a road surface along which the vehicle and trailer are traveling so that the transmitted signals reflect off of the road surface and toward the vehicle antenna disposed at the vehicle. The vehicle antenna receives the reflected RF signals and communicates data to the control unit that are representative of the received reflected signals.

Method and system for remotely detecting a vehicle positioned in at least one of several possible adjacent lanes, which lanes are arranged one after the other in a lateral direction, wherein reading antennas are arranged to read received electro-magnetic signals received from vehicles, at different lateral reading locations. The method involves measuring an electromagnetic signal received from the vehicle by several of said reading antennas; determining, for each of said several reading antennas, a respective received electromag-netic signal strength; determining, based upon knowledge about a respective relative geometric position and the said respective determined signal strength of each of the said several reading antennas, a geometric centre of gravity for a first signal strength function, which is the received signal strength as a function of physical lateral position; and detecting the vehicle as present in a lane in which the said geometric centre of gravity lies.

Resonant sensors for environmental health risk detection are disclosed. A mechanical member may include at least one meso-scale or micro-scale resonator disposed on a surface of the mechanical member. Additionally, the at least one meso-scale or micro-scale resonator may include a plurality of first carbon particles configured to uniquely resonate in response to an electromagnetic ping based at least in part on a concentration level of the first carbon particles within the at least one meso-scale or micro-scale resonator. Further, the at least one meso-scale or micro-scale resonator may be configured to resonate at a first frequency in response to the electromagnetic ping when the mechanical member is in a first state, and may be configured to resonate at a second frequency in response to the electromagnetic ping when the mechanical member is in a second state.

A component including a substrate with dielectric coating on the substrate. The electrical reactance of the dielectric coating configured for the propagation of electromagnetic surface waves. The dielectric coating is arranged as a plurality of discrete pathways. Also a signal transmission system including a component, an electromagnetic surface wave transmitter coupled to the substrate, and an electromagnetic surface wave receiver also coupled to the substrate.

An Improved Roadway Guidance System provides guidance elements in a roadway as means to guide a vehicle along the roadway, as well as supply important information to the vehicle to enhance the autonomous operation of the vehicle in a safe and efficient manner. The system comprises at least three parts: (1) the use of overlaid roadway emitter strips that provide an extended excitation/emission field simultaneous with direct guidance instructions to passing vehicles; (2) the use of a linearly-arranged antenna array system provided on the vehicle and adapted for interaction with the emitter strips for positionally locating the vehicle within a travel lane and providing additional informative data for operation of the vehicle; and (3) the use of a multi-port Receiver Unit that works with the antenna array and the host vehicle's guidance system to optimize autonomous operation of the vehicle.

A data transmission device has an elongated hollow profile with a hollow space extending in a longitudinal direction of the hollow profile, with the hollow profile having a longitudinal slot extending in the longitudinal direction for a transmission unit which moves relative to the hollow space at least in the longitudinal direction and which extends at least partially into the longitudinal slot. At least one sealing element extending along the hollow profile for sealing off at least one portion of the hollow space is provided. A conductor rail system includes a conductor rail for supplying at least one electrical load with electrical power, which load can be moved in the longitudinal direction along the conductor rail, with at least one conductor strand extending in the longitudinal direction with an electrically conducting conductor profile for contacting a sliding contact of the load and with at least one data transmission device extending in the longitudinal direction.

An antenna for a communication device, and also an RFID reader incorporating the antenna, are disclosed. The antenna has a structure including a ground portion and a radiating component. The radiating component has a first side, and a second side that is spaced apart from the first side. The first side has a ground edge portion which is in contact with the ground portion, and the first side extends, from its ground edge portion, away from a surface on one side of the ground portion. The second side also has a ground edge portion which is in contact with the ground portion, and the second side also extends, from its ground edge portion, away from a surface on said one side of the ground portion.

The present disclosure discloses a communication system and a power control unit included therein. The communication system comprises a signal source, one or more amplifiers, one or more terminators and leaky transmission lines. The signal source is configured to provide communication signals. The one or more amplifiers are configured to amplify incoming communication signals. The one or more terminators configured to terminate communication signals. The leaky transmission lines are disposed in correspondence with sections of a elongated area and connect the signal source to each of the one or more terminators via at least one of the amplifiers. The communication system further comprises sensors and the power control unit. Each of the sensors is positioned in correspondence with one of the amplifiers and the terminators and configured to sense whether a vehicle approaches said one of the amplifiers and the terminators. The power control unit is configured to receive sensing results from the sensors and to control each of the amplifiers to amplify its incoming communication signals to a normal power level P.sub.normal or a power level lower than P.sub.normal based on the received sensing results.

A vehicle-mounted patch antenna device includes a substrate, a ground conductor provided on the substrate, an antenna element section, a stub, and a notification circuit section. The antenna element section is provided on a surface that faces a surface on which the ground conductor of the substrate is provided, and includes a power feeding section and a degeneracy separation element section. The stub is provided on a surface on which the antenna element section of the substrate is provided, and is a microstrip line that uses the ground conductor. The notification circuit section is provided on the substrate, and is connected adjacent to an area in which current distribution is minimum in a peripheral area other than an area in which the power feeding section of the antenna element section is provided.

System of automatic guidance of vehicles by means of the detection of changes of the dielectric properties in a pre-recorded rail-guide, wherein the dielectric changes are detected by a high resolution radar device and wherein the control system of the vehicle has the ancillary means required to convert it to an auto guidance system characterized in that the system is composed of the following elements: pre-recorded rail-guide (1) information reading device auxiliary means of the control of the vehicle.