摘要:
An antenna apparatus includes a substrate, a first antenna, and a second antenna. The substrate includes two or more pattern-forming layers which are layered via at least one insulating layer. The two or more pattern-forming layers include a first pattern-forming layer and a second pattern-forming layer which are different from each other. The first pattern-forming layer forms one of both outer layers located at both surfaces of the substrate. The first antenna is formed on the first pattern-forming layer, includes a plurality of antenna elements arrayed in a row, and radiates electromagnetic waves in a layer direction of the plurality of layers. The second antenna is formed on the second pattern-forming layer, is arranged on at least one side of both sides of the antenna array direction of the plurality of antenna elements of the first antenna section, and radiates electromagnetic waves in the antenna array direction.
摘要:
A speed calculating device calculates the speed of an object around a moving body and includes: an image detection unit that captures an image of the surroundings of the moving body and detects the object from the captured image; and a speed calculation unit that calculates the speed of the object, using a moving body speed indicating the speed of the moving body and an image speed, which indicates the speed of the object and is calculated from the image, at a ratio corresponding to a distance from the moving body to the object. The speed calculation unit calculates the speed of the object using the moving body speed and the image speed such that the ratio of the moving body speed increases as the distance to the object increases and the ratio of the image speed increases as the distance to the object decreases.
摘要:
A multitone nonlinear radar system (and a method of operating such a system) comprising a transmitter that transmits a signal comprising at least two predetermined frequency components; a receiver operating to receive return signals comprising harmonics of at least two predetermined frequencies, combinations of the at least two predetermined frequency components, and combinations of the harmonics of the at least two predetermined frequency components that are within a predetermined selected frequency range that has been predetermined to enable detection and/or classification of an electronic device; at least one antenna operating to transmit and receive electromagnetic radiation operatively connected to the transmitter and receiver; the receiver comprising at least one high pass filter for attenuating linear reflections at the two predetermined frequencies, and an analyzer;whereby electronic devices may be detected and identified by analyzing return signals within a predetermined frequency range.
摘要:
Radar in accordance with some embodiments of the inventive concept may include a transmission part outputting a signal to a target object; a receiving part receiving a reflected signal corresponding to the output signal of the transmission part; and a signal processing part receiving the reflected signal from the receiving part to distinguish the target object. The signal processing part directly samples the reflected signal and compares any one of the directly sampled reflected signal and a signal that the directly sampled reflected signal is restored with restored reflected signal data to distinguish the target object.
摘要:
A swiveling body is installed on a base in a swivelable manner. An electric motor for swiveling swivels the swiveling body. An inverter supplies electric power to the electric motor for swiveling. An obstacle detector detects an obstacle around the base and transmits a detected result to a control unit. When the obstacle detector detects the obstacle, the control unit determines whether or not the obstacle is present within a monitoring region, and when the obstacle is present inside the monitoring region, the control unit stops the electric motor for swiveling. In order to avoid danger, the swiveling operation can be stopped more safely.
摘要:
A vehicle detecting sensor assembly (1) includes a microwave module (4) and a radome (5) for detecting the presence or absence of a parked vehicle, parked in a predetermined parking area (3), according an FMCW scheme. A shielding member (10) is provided on each of left and right sides, each of upper and lower sides or each of upper and lower and left and right sides of the module so as to protrude in a direction, conforming to the direction of transmission of a microwave, so that a detection range angle by the microwave can be varied in dependence on the position of the sensor and the size of the parking area, and a so disposed that the distance of separation between the module and the radome, through which the microwave passes, may lie in the vicinity of n times the half-wave length of the microwave.
摘要:
A device and methods of using the device to provide timing and detection of the finish line for a sporting event are described. The device makes use of a Doppler radar transducer to detect the user as they approach and pass the finish line. In some embodiment the device further includes sensors that detect false starts and measure physiological parameters of the user during the event.
摘要:
A target detection apparatus includes a first target detection section which detects a target which exists ahead of a vehicle and has a height sufficient to strike against the vehicle; a second target detection section which detects the target in an area different from an area in which the target is detected by the first target detection section, and a reliability degree setting section which sets a target reliability degree indicating probability that the target exists. When the target is detected only by the first target detection section or the second target detection section, and after the target is detected by both the first and the second target detection sections, the reliability setting section sets the target reliability degree based on an overlap detection time which is a period of time during which both the first and the second target detection sections continuously detect the target.
摘要:
An upper parking meter outer housing component that includes a parking meter cap is provided. The parking meter cap includes an outer surface, an inner surface defining an interior cavity, and a lower edge portion defining an opening into the interior cavity. The lower edge portion is configured to be coupled to a lower housing component of single space meter such that a meter mechanism may be enclosed within the interior cavity of the upper meter dome. The meter cap includes a vehicle sensor coupled to the inner surface of the upper meter dome. The meter cap includes a solar panel coupled to the inner surface of the upper meter dome and configured to supply power to the vehicle sensor.
摘要:
A radar transmitter Txs (s=1) generates a baseband transmission signal by modulating a first code sequence having a prescribed code length on the basis of a first transmission timing signal and gives a first transmission phase shift corresponding to each transmission cycle to the transmission signal. A radar receiver Txs (s=2) generates a baseband transmission signal by modulating a second code sequence having the prescribed code length on the basis of a second transmission timing signal and gives, to the transmission signal, a second transmission phase shift that correspond to each transmission cycle and opposite to the first transmission phase.