摘要:
In order to provide a driving assistance device capable of inhibiting execution of driving assistance in a scene other than an intersection at which the driving assistance is required, a driving assistance device 2 is provided with a microphone 32 mounted on an own vehicle 1 and configured to detect sound information around the own vehicle 1, an assistance executing unit 80 configured to execute the driving assistance, and an assistance determining unit 76 configured to determine whether the driving assistance is executed and determine an assistance level at the time of executing the driving assistance, based on a reverberating sound of a sound emitted from the own vehicle 1 and included in the sound information detected by the microphone 32. According to this, the assistance executing unit 80 can provide just enough driving assistance according to visibility of a crossing road 92 from a travel road 91 and inhibit the execution of the driving assistance in a scene other than an intersection 93 at which the driving assistance is required.
摘要:
A robot includes a robot body having forward and rearward portions, a sonar system, a drive system, and a control system. The sonar system is disposed on the robot body and has an array of emitters and an array of receivers arranged along a forward surface of the forward portion of the robot body. The emitters emit a sound wave and the receivers receive reflections of the sound wave. The array of emitters includes an odd number of emitters and the array of receivers includes an even number of receivers. The drive system supports the robot body and is configured to maneuver the robot across a floor surface along a path. The control system is supports by the robot body and is in communication with the drive system and the sonar system. The control system processes sensor signals received from the array of receivers.
摘要:
An analysis device 110 comprising an input to receive ultrasound data from an interface 127 between two elements 123 and 125 moving relative to each other or tribologically; ultrasound transducer 120 is mounted onto element 123. A processor determines time of flight data from the ultrasound data, the magnitude of the echo may be derived using a Fast Hilbert Transform and the envelope correlated with a reference signal. Contact stress and/or contact load is derived in the first element from time of flight data independent of phase shift. The greatest component of the ultrasound is perpendicular to the interface. In a second invention the stress may be derived from a change in speed of the ultrasound due to the acoustoelastic effect. The analysis device may be incorporated into a system for monitoring bearings, ball races, rolling element races or rolling elements in turbines, wind turbines, railed vehicles, vehicle tracks, metal rolling mills or hydro power generators.
摘要:
The invention relates to an ultrasonic sensor arrangement (2) for a motor vehicle (1), having a trim component (4, 5, 8, 9) and a first ultrasonic sensor (10 to 13) which is arranged with its diaphragm on a rear side of the trim component (4, 5, 8, 9), with the result that the diaphragm is designed to transmit and/or receive ultrasonic signals through the trim component (4, 5, 8, 9), wherein the trim component (4, 5, 8, 9) is a mudguard (4, 5, 8, 9) for the motor vehicle (1).
摘要:
Die Erfindung bezieht sich auf eine Ultraschallüberwachungsvorrichtung zur Bestimmung der Bewegungsrichtung und/oder der Bewegungsgeschwindigkeit eines Objekts, umfassend einen Ultraschallsender und einen Ultraschallempfänger, wobei während des Betriebs der Ultraschallüberwachungsvorrichtung der Ultraschallsender ein Ultraschallsignal aussendet, das ausgesandte Ultraschallsignal an einem Objekt reflektiert wird und der Ultraschallempfänger das reflektierte Ultraschallsignal empfängt, gekennzeichnet durch einen Taktgenerator zur Erzeugung eines ersten Taktsignals und eines zweiten Taktsignals, wobei das erste Taktsignal und das zweite Taktsignal eine vorgegebene Phasendifferenz aufweisen, einen ersten Demodulator zur Demodulation des empfangenen Ultraschallsignals, wobei der erste Demodulator in Abhängigkeit vom Zustand des ersten Taktsignals aktiviert oder deaktiviert ist und ein erstes Ausgangssignal ausgibt, einen zweiten Demodulator zur Demodulation des empfangenen Ultraschallsignals, wobei der zweite Demodulator in Abhängigkeit vom Zustand des zweiten Taktsignals aktiviert oder deaktiviert ist und ein zweites Ausgangssignal ausgibt, und eine Auswerteeinheit zur Bestimmung der Bewegungsrichtung und/oder der Bewegungsgeschwindigkeit des Objekts anhand des ersten und des zweiten Ausgangssignals.