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Method for initial calibration of a sensor for a driver assistance system of a vehicle

A driver assistance, sensor technology, applied in vehicle components, control/regulation systems, vehicle wireless communication services, etc., to achieve fast and efficient transmission methods, accurate detection effects

Pending Publication Date: 2019-12-31
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this measurement of the travel axis and the calibration in the test bench requires valuable time

Method used

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  • Method for initial calibration of a sensor for a driver assistance system of a vehicle
  • Method for initial calibration of a sensor for a driver assistance system of a vehicle

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Embodiment Construction

[0025] figure 1 A schematic diagram of a system 100 for initial calibration of a sensor 1 for a driver assistance system is shown. A vehicle 10 can be seen having a sensor 1 (for example in the form of a video sensor, radar sensor, lidar sensor, etc.). The sensor 1 transmits a measurement beam M to a point target device 3 of known position which is arranged outside the vehicle 10 . For radar sensors, the point target device 3 has a plurality of reflective (for example metallic) surfaces arranged at 90° to one another, whereby the measurement beam M is reflected back to the sensor 1 due to multiple reflections.

[0026] For other types of sensors 1 , technically other configurations of the point target device 3 are conceivable here. In this way, the point target device 3 fulfills the function of a point target or a corner reflector. The result of this is that a sensor axis 5 arranged perpendicularly to vehicle sensor 1 , which, when correctly oriented, has the same orientati...

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PUM

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Abstract

A method for initial calibration of a sensor (1) for a driver assistance system of a vehicle (10), comprising the steps of: detecting a trajectory of the vehicle by way of a reference device (2) disposed externally to the vehicle (10); ascertaining a sensor axis (5) of the sensor (1); ascertaining a travel axis (6) of the vehicle (10) from the detected trajectory; and ascertaining an angle ([alpha]) between the sensor axis (5) and the travel axis (6).

Description

technical field [0001] The invention relates to a method for initial calibration of sensors of a driver assistance system of a vehicle. Furthermore, the invention relates to a system for initial calibration of sensors of a driver assistance system of a vehicle. Furthermore, the invention relates to a computer program product. Background technique [0002] In order to be able to use the sensor's driver assistance functions from the moment it leaves the factory, the sensor must first be calibrated. Such calibration is currently usually carried out on the chassis frame with a modified axis pointing to a suitable target. However, this measurement of the travel axis and the calibration in the test bench requires valuable time. Contents of the invention [0003] It is therefore the object of the present invention to provide a method for an improved initial calibration of sensors of a driver assistance system. [0004] According to a first aspect, the task is solved by a meth...

Claims

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Application Information

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IPC IPC(8): G01S7/40G01S7/497H04W4/40
CPCG01S7/40G01S7/497H04W4/40G06T7/73G06T2207/30241G06T2207/30244G06T2207/30252G01S17/931G01S7/4972G01S7/403G01S7/4082G05D1/0212B60W50/00H04N17/002B60W2050/0083B60W2420/403B60W2420/408
Inventor A·C·乌尔里希S·多伦坎普
Owner ROBERT BOSCH GMBH