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Device for detecting parking space and method thereof

A parking space and exploration device technology, which is applied to indicate the direction of each open space in the parking lot, measuring devices, instruments, etc., can solve problems such as difficult sensor replacement, and achieve the effect of improving overall performance and accuracy

Active Publication Date: 2016-04-06
HYUNDAI MOBIS CO LTD
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AI Technical Summary

Problems solved by technology

[0009] However, in the conventional parking assist system, it is difficult to replace it with other sensors in terms of price

Method used

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  • Device for detecting parking space and method thereof
  • Device for detecting parking space and method thereof
  • Device for detecting parking space and method thereof

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Experimental program
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Embodiment Construction

[0037] A parking space exploration device according to one aspect of the present invention includes: a signal preprocessing unit that filters the reflected signal returned by the ultrasonic signal emitted from the ultrasonic sensor attached to the vehicle in the corner section of the obstacle; based on the corner of the pattern An estimating unit that extracts the intersection of a plurality of circles with a radius of a plurality of measurement distances collected from the reflected signal as the vehicle moves, and the ultrasonic wave using the current position of the ultrasonic sensor as a reference point In the sensing area of ​​the sensor, it is estimated that the reflection angle defined between the first line (afirst line) that bisects the sensing area and the second line (asecond line) connecting the reference point and the intersection point is based on the estimation The reflection angle of, estimates the corner section of the obstacle; and the parking space exploration...

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Abstract

A device for detecting a parking space of a smart parking assistant system (SPAS) is disclosed. A device for detecting a parking space includes: a signal pre-processing unit configured to filter reflection signals which are ultrasonic signals reflected and returned from a corner section of an obstacle, the ultrasonic signals being emitted from ultrasonic sensors attached to a vehicle; a pattern-based corner estimating unit configured to extract a crossing point of a plurality of circles having a plurality of measurement distances, which are collected from the reflection signals according to a movement of the vehicle as radiuses, estimate a reflection angle between a first line for bisecting a detection region within the detection region of the ultrasonic sensor, which has an attachment position of the ultrasonic sensor as a reference point, and a second line for connecting the reference point and the crossing point, and estimate the corner section of the obstacle based on the estimated reflection angle; and a parking space detecting unit configured to detect a parking space of the vehicle according to the estimated corner section.

Description

Technical field [0001] The invention relates to a parking space exploration device and a method for exploring a parking space by using an ultrasonic sensor in an automatic parking assistance system. Background technique [0002] Recently, a parking assistance system (SmartParkingAssistSystem: SPAS) that supports parallel parking and right-angle parking is being developed. [0003] Such SPAS Figure 1a As shown, it can be composed of multiple ultrasonic sensors, ESC, MDPS, SPASECU, HMI, etc. [0004] Generally speaking, the multiple ultrasonic sensors installed in the vehicle are composed of 8 (8EA) front and rear ultrasonic sensors and 4 (4EA) side ultrasonic sensors. The front and rear ultrasonic sensors are based on the driving direction of the vehicle to detect the longitudinal direction. Obstacles, lateral ultrasonic sensors detect lateral obstacles. The detected obstacle information is transmitted to the SPAS controller. [0005] SPASECU such as Figure 1b As shown, based on the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S15/02G01S15/93G01S15/931
CPCG01S2015/935G01S15/931G08G1/14
Inventor 李庸周魏民焕吴振荣申益秀黄载皓
Owner HYUNDAI MOBIS CO LTD
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