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Radar and video information fusing method applied to advanced emergency brake system

An emergency braking and video information technology, applied in braking safety systems, automatic starting devices, instruments, etc., can solve the problems of video dependence, failure to complement the advantages of radar and video information, and inability to make up for the easy missed detection of video, etc. Achieve the effect of preserving rationality, improving performance, and ensuring accuracy

Active Publication Date: 2015-01-21
ZHENGZHOU YUTONG BUS CO LTD
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AI Technical Summary

Problems solved by technology

The disadvantage of this method is that it relies too much on video, which can only make up for the shortcomings of radar that cannot distinguish obstacles, but cannot make up for the shortcomings of video that are easy to miss detection, and cannot realize the complementary advantages of radar and video information.

Method used

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  • Radar and video information fusing method applied to advanced emergency brake system
  • Radar and video information fusing method applied to advanced emergency brake system

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Embodiment Construction

[0027] The present invention will be further introduced below in conjunction with the accompanying drawings and specific embodiments.

[0028] Such as Figure 1 ~ Figure 2 As shown, the present invention provides a method for fusion of radar and video information applied to an advanced emergency braking system, comprising the following steps:

[0029] (1) The radar and video are used to detect the front respectively, and the targets and related characteristic data within the corresponding detection range of the front are obtained, such as distance, azimuth, speed, etc., and each target and its characteristic data are passed to the next link .

[0030] (2) Set confidence functions for radar signal and video signal respectively, and evaluate the confidence of each detected target.

[0031] The basis for evaluating the confidence of the target detected by the radar includes the relative orientation relationship between the target and the radar, the relative speed, the relative ...

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Abstract

The invention discloses a radar and video information fusing method applied to an advanced emergency brake system. A mode of combining confidence level evaluation and matching is adopted to determine a true barrier target; confidence level evaluation is used for enabling targets obtained through radars and videos to be scientifically and effectively screened out; a matching link is added, and the accuracy of the targets is further determined; for the targets which cannot be matched and are above trust values, early warning is still carried out, and rationality of the targets is reserved; the false alarm is effectively reduced; compared with an existing fusion method, rationality of signals detected by the radars and the videos can be completely, scientifically and effectively reserved, different measures are adopted in signals with different confidence levels, and therefore the performance of the advanced emergency brake system is importantly improved. Rationality of radar and video information is effectively reserved, and therefore real complementation of the radar and video information is achieved.

Description

technical field [0001] The invention relates to a radar and video information fusion method applied to an advanced emergency braking system. Background technique [0002] At present, in the vehicle-mounted advanced emergency braking system, radar and video are usually used alone or in combination as the main detection sensors to help the system realize subsequent actions such as alarming, braking, and even avoidance. [0003] The detection of radar has the advantages of rarely missing detection, high accuracy of detecting target object data, and especially good at obtaining target object speed information, but it cannot distinguish the type of target object. If it is used alone, because it cannot distinguish the type of the target object, it often causes many unnecessary alarms or braking. [0004] Video detection can distinguish target objects, so that the system can take corresponding actions according to different types of targets. However, video detection has strict re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T7/12B60T17/18G06K9/62
CPCB60T17/18B60T7/12G06F18/00
Inventor 李珺汤望李会仙路晓静
Owner ZHENGZHOU YUTONG BUS CO LTD
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