Device and method for the acoustic examination of objects in the environment of a means of conveyance

A technology of the surrounding environment and vehicles, applied in the direction of using re-radiation, re-radiation of sound waves, measuring devices, etc., to achieve the effect of simplifying signal analysis and processing

Active Publication Date: 2017-03-22
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Furthermore, the present method has the disadvantage that only the exceeding of the minimum intensity is analyzed.

Method used

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  • Device and method for the acoustic examination of objects in the environment of a means of conveyance
  • Device and method for the acoustic examination of objects in the environment of a means of conveyance
  • Device and method for the acoustic examination of objects in the environment of a means of conveyance

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Embodiment Construction

[0033] figure 1 A top view of a car 10 is shown as a self-vehicle with an embodiment of the device according to the invention. The device comprises a first acoustic sensor 1 which is incorporated in the left front side of the passenger car. Corresponding acoustic sensors 2 , 3 , 4 are arranged in the three remaining corners and are each connected via information technology to an electronic control unit 5 as evaluation unit. Furthermore, the electronic control unit 5 is connected via information technology to a non-volatile data memory 6 , in which data memory references are stored in the form of predefined temporal profiles of the intensity parameters of the sensor signals. Acoustic sensors 1 , 2 , 3 , 4 have different directional characteristics 11 , 12 , 13 , 14 , which result from manufacturing-related differences as well as from differences in installation within the respective peripheral device. Furthermore, the respective orientations of the acoustic sensors 1 , 2 , 3 ...

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Abstract

The invention relates to a device and a method for the acoustic examination of objects (20, 30, 40) in the environment of a means of conveyance (10). The method comprises the steps of: - detecting sound emitted by an object (20, 30, 40) in the environment by means of a sensor (1, 2, 3, 4), - evaluating the sensor signal over time, and - recognising a position and / or a relative movement (P) and / or a spatial extent of the object (20, 30, 40) in the environment on the basis of a comparison of a time profile (5) of an intensity variable of the sensor signal with a predefined reference (6).

Description

technical field [0001] The invention relates to a device and a method for checking surrounding objects of a vehicle. The invention relates in particular to the acoustic examination of the position and / or relative movement and / or spatial extent of objects in the surrounding environment. Background technique [0002] In particular, sound-based driver assistance systems are known in the prior art which check the echoes of the transmitted measurement signals as follows: whether surrounding objects are contained in the surroundings of the own vehicle, which At what distance the surrounding objects are located relative to the ego vehicle and, if applicable, in which direction they are currently moving. In addition to maneuvering at low own speeds, for example during parking, sound-based surroundings detection systems are also used at high own speeds for detecting objects in the vehicle surroundings of the own vehicle. In this case, a reminder should be given to the driver of the...

Claims

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Application Information

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IPC IPC(8): G01S11/14G01S7/539G01S15/93G01S15/931
CPCG01S11/14G01S7/539G01S15/931
Inventor M·卡尔
Owner ROBERT BOSCH GMBH
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