Optoelectronic detection device and method for detecting the environment of a motor vehicle in a scanning manner

A technology for motor vehicles and the surrounding environment, applied in the field of laser scanners, can solve the problems of large design complexity, multiple light sources, low scanning rate, etc., achieve high power balance, ensure power balance, and save costs

Active Publication Date: 2016-03-09
VALEO SCHALTER & SENSOREN
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the large number of detector cells results in low scan rates, which means that multiple light sources are required
[0006] Although known laser scanners achieve a large total sensing sector by merging the sensing sectors of the two mirrors, a great design complexity and thus a corresponding manufacturing cost must be accepted

Method used

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  • Optoelectronic detection device and method for detecting the environment of a motor vehicle in a scanning manner
  • Optoelectronic detection device and method for detecting the environment of a motor vehicle in a scanning manner
  • Optoelectronic detection device and method for detecting the environment of a motor vehicle in a scanning manner

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Embodiment Construction

[0026] figure 1 A side view of a motor vehicle 1 is shown, which has one or more driver assistance systems for assisting the driver, which take into account the surroundings of the motor vehicle 1 . The driver assistance system includes a central computer unit—not shown—and a sensor system that supplies the central unit with measurement data. The vehicle sensor system comprises in particular one or more optoelectronic detection devices 2 , ie laser scanners. In the exemplary embodiment shown, such a detection device 2 is positioned in the front region of the motor vehicle 1 , ie in the region of the radiator grille. In this case, the detection device 2 monitors the surroundings of the motor vehicle 1 . It is part of a Lidar system in which electromagnetic radiation 3 (laser pulses) is emitted and light reflected by target objects Z in the surroundings of the motor vehicle 1 (light beam 5) is detected.

[0027] figure 2 and image 3 The basic design of the detection devic...

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Abstract

The invention relates to a scanning optoelectronic detection device and to a method for detecting the environment of a motor vehicle (1) in a scanning manner by means of an optoelectronic detection device (2). The detection device (2) comprises a transmitting and receiving optical unit (4), which outputs electromagnetic beams and images reflected beams on a detector, wherein the detector has a multi-cell design and comprises a plurality of detector cells for providing electrical reception signals in dependence on received reflected beams, which detector cells are lined up in a detector cell stack and can be evaluated in parallel measurement planes. The detection device also comprises a mirror support (7) having mirror surfaces (9, 10) facing away from each other, which are arranged tilted at a tilt angle in relation to an axis of rotation (8) of the mirror support (7) and which image different vertical detection ranges for reflected beams onto the detector. According to the invention, in order to enable the detection of the environment of a motor vehicle by means of an optoelectronic detection device with the greatest possible detection range and with little construction complexity, such certain tilt angles alpha of the mirror surfaces (9, 10) are provided that the detection ranges (14', 14") overlap in a center section of a total detection range (16).

Description

technical field [0001] The invention relates to a scanning opto-electronic detection device for a motor vehicle, in particular a laser scanner, according to the preamble of claim 1 . The invention also relates to a method according to the preamble of claim 6 for sensing the surroundings of a motor vehicle by scanning with an opto-electronic detection device, in particular a laser scanning instrument. Background technique [0002] In the automotive sector, a large number of driver assistance systems are increasingly being used, ie electronic supplementary devices for assisting the driver, especially in driving situations. Against this background, various driver assistance systems with safety and convenience functions based on panoramic view sensors are known, such as adaptive speed regulators, collision avoidance systems, parking assistance, lane departure warning assistance and the like. In this context, laser-based measuring devices for motor vehicles are known under the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/42G01S17/93G01S7/481G02B26/10G01S17/931
CPCG01S17/42G01S7/4816G01S7/4817G02B26/101G01S17/931
Inventor M.凯勒
Owner VALEO SCHALTER & SENSOREN
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