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公开(公告)号：US12111395B2
公开(公告)日：2024-10-08
申请号：US18299928
申请日：2023-04-13
发明人： Marek Hustava , Pavel Kostelnik
CPC分类号： G01S15/931 , G01S7/52004 , G01S7/523 , G01S7/527 , G01S7/536 , G01S15/10 , G01S15/101
摘要： An illustrative controller includes: a transmitter to drive an acoustic transducer to generate a first acoustic burst and a second acoustic burst; a receiver coupled to the acoustic transducer to sense a first response to the first acoustic burst and a second response to the second acoustic burst; and a processing circuit to derive output data from the first and second responses in part by determining an offset frequency difference between the first and second responses, wherein the first acoustic burst has a first characteristic frequency and the second acoustic burst has a second characteristic frequency different from the first characteristic frequency.
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公开(公告)号：US12099118B2
公开(公告)日：2024-09-24
申请号：US17582128
申请日：2022-01-24
发明人： John P. Lesso , Claire Motion
CPC分类号： G01S15/523 , G01R19/0038 , G01S7/527
摘要： Circuitry comprising excitation circuitry for supplying a transducer with an excitation signal to generate a detection signal and current monitor circuitry for monitoring current through the transducer.
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公开(公告)号：US11959792B2
公开(公告)日：2024-04-16
申请号：US16755070
申请日：2018-09-11
IPC分类号： G01F23/296 , G01F23/284 , G01F23/2962 , G01S7/292 , G01S7/35 , G01S7/527 , G01S13/88 , G01S15/88
CPC分类号： G01F23/2962 , G01F23/284 , G01S7/292 , G01S7/354 , G01S7/527 , G01S13/88 , G01S15/88
摘要： The present disclosure relates to a method for safe and exact ascertaining of fill level of a fill substance located in a container by means of an ultrasonic, or radar-based, fill level measuring device. In such case, the method is distinguished by the feature that the evaluation curve created based on the reflected received signal is differently greatly smoothed as a function of measured distance. To achieve this, the evaluation curve can be specially filtered, depending on the application. In this way, noise fractions and disturbance echoes can be efficiently suppressed, without unnecessarily limiting the accuracy of the fill level measurement.
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公开(公告)号：US20230367007A1
公开(公告)日：2023-11-16
申请号：US18226290
申请日：2023-07-26
发明人： Shinichi SASAKI , Takaaki ASADA
CPC分类号： G01S15/101 , G01S7/527
摘要： An object detection system includes an acoustic wave generator to generate an acoustic wave by generating heat upon energization and a processing circuit to perform object detection processing to detect an object in target space using an acoustic wave generated by the acoustic wave generator. The object detection processing includes setting processing, wave transmission processing, and determination processing. The setting processing sets a search range corresponding to a distance to the object in the target space. The wave transmission processing controls the acoustic wave generator to generate an acoustic wave at a target sound pressure associated with a search range set in the setting processing. The determination processing acquires, from a wave receiver to receive an acoustic wave from the target space, a received-wave signal representing an acoustic wave received by the wave receiver and determines whether the object is present based on the received-wave signal.
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公开(公告)号：US20180210074A1
公开(公告)日：2018-07-26
申请号：US15745669
申请日：2016-07-14
CPC分类号： G01S7/539 , G01S7/527 , G01S7/5273 , G01S15/003 , G01S15/025 , G01S15/88 , G01S15/931 , G01S2015/937 , G01S2015/938
摘要： The present invention provides a system for use in a vehicle for determining an indication of the type of terrain in the vicinity of the vehicle. The system comprises a processor arranged to receive acoustic sensor output data from at least one vehicle-mounted acoustic sensor, the or each acoustic sensor being arranged to receive a reflected signal from the terrain in the vicinity of the vehicle, the processor also being arranged to calculate at least one acoustic parameter in dependence on the acoustic sensor output data. The system also comprises a data memory arranged to store pre-determined data relating the at least one acoustic parameter to a particular terrain type. The processor is arranged to compare the at least one acoustic parameter with the pre-determined data to determine an indication of the particular terrain type based on the acoustic sensor output data only.
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公开(公告)号：US20180180732A1
公开(公告)日：2018-06-28
申请号：US15391524
申请日：2016-12-27
CPC分类号： G01S15/931 , G01S7/527 , G01S15/101 , G01S15/36 , G01S2015/932 , G01S2015/938
摘要： One example includes an ultrasonic ranging system. The system includes an ultrasonic transducer configured to transmit an ultrasonic signal and to receive reflected ultrasonic signal paths having been reflected from a plurality of target objects during a ranging operation. The system also includes a ranging processor configured to detect a location associated with the plurality of target objects based on monitoring phase information associated with the reflected ultrasonic signal paths.
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公开(公告)号：US20180164433A1
公开(公告)日：2018-06-14
申请号：US15830122
申请日：2017-12-04
申请人： Rohm Co., Ltd.
发明人： Kazuma Mishima
CPC分类号： G01S15/10 , G01S7/527 , G01S15/04 , G01S15/102 , G08G1/16
摘要： An ultrasonic sensor includes a transmitter configured to transmit an output wave signal in an ultrasonic region using a piezoelectric element, a receiver configured to receive an input wave signal in the ultrasonic region using the piezoelectric element or an additional piezoelectric element, and a logic part configured to control the transmitter and the receiver. The transmitter is configured to superimpose ID information on the output wave signal. The logic part is configured to perform proximity detection and distance measurement of a detection object by identifying the input wave signal based on the ID information.
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公开(公告)号：US09921057B2
公开(公告)日：2018-03-20
申请号：US14948230
申请日：2015-11-20
发明人： Wancheng Zhou , Liming Huang
CPC分类号： G01B17/00 , G01S7/524 , G01S7/527 , G01S7/5273 , G01S7/529 , G01S15/93 , G01S15/931
摘要： Methods, systems and device are provided for improving the range and accuracy of proximity measurement such as in ultrasonic sensing systems. In particular, the blind zone caused by reverberation signals can be reduced or eliminated by attenuating signals received during the time period corresponding to the blind zone without. In an implementation, an attenuator circuit is selected by a switch to process received signals during the blind zone time period and deselected by the switch after the time zone time period. Additionally, the accuracy and range of the measurement can be improved by varying the gain provided to the received signals based on the varying measuring distance. In an implementation, a gain-adjustable amplifier is controlled by a gain control signal to provide incremental gain as time increases.
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公开(公告)号：US09823104B2
公开(公告)日：2017-11-21
申请号：US13773447
申请日：2013-02-21
发明人： Francis Rowe , Marc Parent
摘要： Apparatus and methods for velocity scanning in, e.g., bodies of water. In one embodiment, a scanned one-dimensional transducer array Doppler sonar arrangement is used to remotely measure both vertical and horizontal profiles of a river or channel along-stream water velocities within a cross-section of the river/channel from a single side-mounted sonar.
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公开(公告)号：US20170242120A1
公开(公告)日：2017-08-24
申请号：US15515537
申请日：2015-10-21
CPC分类号： G01S15/931 , G01S7/527 , G01S7/56 , G01S7/62 , G01S15/46 , G01S15/878 , G01S2015/938
摘要： An obstacle detection apparatus for vehicles includes: a first ultrasonic sensor for detecting a distance to an obstacle; a second ultrasonic sensor at a position of the vehicle for receiving a reflection wave from the obstacle of an ultrasonic wave from the first ultrasonic wave; a notifier that gives a notification of detecting the obstacle present within a preset distance in one or more of predetermined notification areas including a first notification area for the first ultrasonic sensor, and a second notification area for the second ultrasonic sensor detects the obstacle for the vehicle; and a controller that controls contents to be notified by the notifier. Furthermore, the controller determines whether a first indirect wave distance and a second indirect wave distance are used to determine whether to give the notification of detecting the obstacle in the first notification area.
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