ULTRASONIC SENSOR SYSTEM HAVING A VARYING SOLID ANGLE

    公开(公告)号:US20240159898A1

    公开(公告)日:2024-05-16

    申请号:US18548406

    申请日:2022-09-28

    申请人: Robert Bosch GmbH

    IPC分类号: G01S15/931

    CPC分类号: G01S15/931 G01S2015/932

    摘要: A method for operating at least one ultrasonic sensor array, in particular, using a control unit. The ultrasonic sensor array is driven to generate sonic echos. Reflected sonic echos are received by the ultrasonic sensor array, in order to generate measurement data on the basis of the received sonic echos. The ultrasonic sensor array is driven to generate and receive sonic echos in such a manner, that a horizontal and/or vertical solid angle of a detecting range is changed. A control unit, a computer program, and a machine-readable storage medium, are also described.

    Method and system for recognizing objects using ultrasonic signals

    公开(公告)号:US11086012B2

    公开(公告)日:2021-08-10

    申请号:US16477774

    申请日:2017-12-11

    申请人: Robert Bosch GmbH

    摘要: A method for operating an ultrasonic measuring device, encompassing the steps of receiving echo amplitudes, ascertaining object distances for the received echo amplitudes, computing normalized echo amplitudes for the received echo amplitudes, a received echo amplitude with a certain object distance being divided by a reference echo amplitude for the same or a similar object distance, encoding the normalized echo amplitudes, and transmitting the encoded echo amplitudes to a control unit. Also described is a related computer program, a system for carrying out the method, and a vehicle that includes a driving assistance system.

    METHOD AND DEVICE FOR OPERATING AN ACOUSTIC SENSOR

    公开(公告)号:US20210063148A1

    公开(公告)日:2021-03-04

    申请号:US16960015

    申请日:2019-01-15

    申请人: Robert Bosch GmbH

    发明人: Michael Schumann

    IPC分类号: G01B17/02 G01S15/88 G01S15/10

    摘要: A device and a method for operating an acoustic sensor. An acoustic signal is emitted with the aid of the acoustic sensor, a first signal component of the acoustic signal having a first frequency and a second signal component of the acoustic signal having a second frequency, an aperture angle of the acoustic sensor differing for the first frequency and the second frequency, receiving the acoustic signal with the aid of the acoustic sensor, after it has been reflected at an object; and evaluating the received acoustic signal to ascertain an elevation angle based on a signal amplitude of the first signal component and a signal amplitude of the second signal component of the received acoustic signal, the elevation angle describing a position deviation of the object from a sensor axis of the acoustic sensor.

    METHOD FOR ACQUIRING THE SURROUNDING ENVIRONMENT AND SYSTEM FOR ACQUIRING THE SURROUNDING ENVIRONMENT FOR A MOTOR VEHICLE

    公开(公告)号:US20190318623A1

    公开(公告)日:2019-10-17

    申请号:US16379384

    申请日:2019-04-09

    申请人: Robert Bosch GmbH

    摘要: A method for acquiring the surrounding environment of a motor vehicle. The motor vehicle has at least one ultrasound sensor. The ultrasound sensor includes an ultrasound transducer for sending, the ultrasound sensor receiving acoustic environmental signals, in particular audible environmental signals, in that the ultrasound sensor is controlled in its evaluation in such a way that sound waves having frequencies below a resonant frequency of the ultrasound transducer, in particular audible sound waves, of an environmental signal are acquired and evaluated. Environmental signals are understood as acoustic signals that are not produced by the ultrasound transducer itself, but rather by an external sound source that in particular differs from the motor vehicle. This can be for example the siren of a rescue vehicle or emergency vehicle, or the horn of some other motor vehicle.

    METHODS FOR DETECTING SENSOR DEGRADATION IN DISTANCE SENSORS
    9.
    发明申请
    METHODS FOR DETECTING SENSOR DEGRADATION IN DISTANCE SENSORS 有权
    用于检测距离传感器传感器降级的方法

    公开(公告)号:US20150260833A1

    公开(公告)日:2015-09-17

    申请号:US14440774

    申请日:2013-09-24

    申请人: ROBERT BOSCH GMBH

    IPC分类号: G01S7/52 G01S15/88

    摘要: A method for detecting a sensor degradation in distance sensors, having the following: a) sending out at least one transmit pulse; b) acquisition of a sensor signal at least in a decay interval; and c) determination of a degree of degradation based on a frequency response of the acquired sensor signal. Also described is a computer program product, a distance sensor unit, and a driver assistance system for carrying out such methods.

    摘要翻译: 一种用于检测距离传感器的传感器劣化的方法,具有以下功能:a)发送至少一个发射脉冲; b)至少在衰减间隔中获取传感器信号; 以及c)基于所获取的传感器信号的频率响应来确定劣化程度。 还描述了一种用于执行这种方法的计算机程序产品,距离传感器单元和驾驶员辅助系统。

    Sensor for emitting signals and for receiving reflected echo signals, and system including a control unit and such a sensor

    公开(公告)号:US11580793B2

    公开(公告)日:2023-02-14

    申请号:US16605871

    申请日:2018-05-07

    申请人: Robert Bosch GmbH

    摘要: A sensor, including at least one transducer for emitting signals and for receiving reflected echo signals, the transducer being set up to output an analog measuring signal, an analog-to-digital converter for converting the analog measuring signal into a digital measuring signal, an evaluation unit for evaluating the digital measuring signal, and a communication unit for transmitting a measuring result of the evaluation via a digital communication interface. The communication unit is equipped to receive a request for diagnostic data via the digital communication interface, and is also equipped to switch the sensor to diagnostic operation and to transmit requested diagnostic data via the digital communication interface. The communication unit is set up to communicate with at least two different data rates via the digital communication interface, a higher data rate being used for transmitting the diagnostic data than for transmitting the measuring result during normal operation of the sensor.