A proximity detection device for a vehicle is shown and described. The proximity detection device for a vehicle includes a housing. The housing is made up of a solid exterior and an interior volume. The housing encloses at least one sensor which is operably coupled to a CPU. The CPU is then operably coupled to an alarm. The proximity detection device may be incorporated into a vehicle. Further, multiple proximity detection devices may be incorporated into a vehicle for any number of reasons.

A vehicular lamp fitting and the like capable of preventing the distance between a radar unit and the radar cover from changing are provided. A vehicular lamp fitting includes: a lamp housing; an outer lens attached to the lamp housing while covering an opening of the lamp housing, and forming a first space between the outer lens and the lamp housing; a lamp unit disposed in the first space; a radar housing; a radar cover attached to the radar housing while covering an opening of the radar housing, and forming a second space between the radar cover and the radar housing; a radar unit disposed in the second space; a first fixing part fixing the radar unit to the radar housing; and a second fixing part fixing the radar cover to the radar housing.

A radar assembly includes a front bumper assembly, a radar support structure and a radar unit. The front bumper assembly has a support bracket. The radar support structure has first bracket that is fixed to the support bracket. The radar support structure second bracket is movable relative to the first bracket and the support bracket between a rest position and a deformed position. The radar unit is supported to the second bracket to move with the second bracket relative to the first bracket and the support bracket.

A vehicular lamp fitting includes: a structure including a lamp housing and an outer lens attached to the lamp housing and forming a first space between the outer lens and the lamp housing; a lamp unit disposed in the first space; and the outer lens includes a recess recessed toward the lamp housing; wherein the vehicular lamp fitting further comprises: a radar cover that is detachably fixed to the structure in a state of covering the recess, and forms a second space between the radar cover and the recess; a bracket including one end detachably fixed to the structure, its opposite other end detachably fixed to the structure, and a bracket body provided between the one end and the other end and disposed in the second space; and a radar unit disposed in the second space in a state of detachably being fixed to the bracket body.

Various embodiments are directed to a radar reflector configured for radar-based distance measurements for determining a position of an elevator car within an elevator shaft. The radar reflector comprises three or more triangular panels defining a pyramidal frustum volume having a base plane and an upper plane that are parallel. The pyramidal frustum volume is configured to directly reflect radar signals originating from a radar transceiver back to the radar transceiver based at least in part on the triangular panels being mutually perpendicular at a projected apex above the upper plane. The reflected radar signals reflected by the radar reflector have substantially parallel trajectories with the original, pre-reflected radar signals emitted by the radar transceiver. The triangular panels of the radar reflector being mutually perpendicular advantageously maintains direct reflection of radar signals in spite of any potential horizontal tilt of the radar reflector to a certain extent.

Threat identification devices, systems, and methods are disclosed which identify and locate various threats and provide a variety of countermeasures to reduce the loss of life in an attack. In one implementation, a device is provided with a housing and a plurality of tubes coupled to and extending from the housing. Sensors are located within the tubes for sensing external conditions. A control unit is in electronic communication with the sensors. Upon detection of an external condition, the sensors transmit a signal to the control unit, which activates countermeasures, including rotating light sources to identify the location of the external condition as well as preferred escape routes. The control unit may also transmit signals to other devices in the environment, including video panels and speakers, to provide instructions.

A vehicular radar sensing system includes a radar sensor disposed at a vehicle so as to sense exterior of the vehicle and having at least one transmitter that transmits radio signals and at least one receiver that receives radio signals. The radar sensor includes a transmitting wave guide antenna and a receiving wave guide antenna, a PCB, and a processor operable to process radio signals transmitted by the at least one transmitter and received by the at least one receiver. Each of the wave guide elements includes a respective wave guide slot disposed at the inboard side of the PCB, and another respective wave guide slot that guides the radio signals to or from the environment, and a respective air wave guide that guides the radio signals between the respective wave guide slots.

A radar-based fill-level measuring device, comprises the following parts: a semiconductor component for producing electrical high-frequency signals or for determining the fill-level value from the received high-frequency signals; a dielectric waveguide placed in contact with the semiconductor component to couple the high-frequency signals as radar signals into an antenna and/or to couple received radar signals from the antenna as electrical signals into the semiconductor component; a potting encapsulation, which encapsulates at least the waveguide radially such that a defined cavity is formed between the waveguide and the potting encapsulation.

A radar chip including a waveguide coupling configured to couple a radar signal of the radar chip into and out of an antenna or a waveguide of a radar gauge is provided, the waveguide coupling including: a radio frequency substrate including a line, a radiating element, and a substrate-integrated waveguide disposed therebetween and connected thereto, configured to transmit the radar signal between the radar chip and the antenna or waveguide of the radar gauge and to couple the radar signal into and out of the antenna or waveguide of the radar gauge. A method of fabricating a radar chip having a waveguide coupling is also provided.

A radar sensor for sensing the level of a product or the topology of the surface of a product having a continuously operated clock that closes a power supply line to the processor at a predetermined time to activate the processor. Thereupon, the processor controls the switching arrangement to activate the radar chip.