EP 3132280 A1 20170222 - METHOD FOR DETECTING AN OBJECT IN A NEAR FIELD OF AN ULTRASONIC SENSOR
Title (en)
METHOD FOR DETECTING AN OBJECT IN A NEAR FIELD OF AN ULTRASONIC SENSOR
Title (de)
VERFAHREN ZUM ERKENNEN EINES OBJEKTES IN EINEM NAHBEREICH EINES ULTRASCHALLSENSORS
Title (fr)
PROCÉDÉ PERMETTANT D'IDENTIFIER UN OBJET DANS UNE ZONE PROCHE D'UN CAPTEUR ULTRASONORE
Publication
Application
Priority
- DE 102014207129 A 20140414
- EP 2015052999 W 20150212
Abstract (en)
[origin: WO2015158443A1] The invention relates to a method for detecting an object in a near field of an ultrasonic sensor. The method comprises the steps of exciting a sound transducer of the ultrasonic sensor by means of a transmission signal, capturing a decay signal (1), which describes the decay behavior of the sound transducer after the excitation of the sound transducer, determining a deviation between the decay signal (1) and a reference decay signal (2), and detecting the presence of an object in the near field of the ultrasonic sensor on the basis of the determined deviation. Thus, objects in a near field of the ultrasonic sensor and under a measuring range of the ultrasonic sensor can be reliably detected. A near field is a field in front of the sound transducer of the ultrasonic sensor in which an exact measurement by means of the pulse-echo method is not possible, because the decay signal is superposed on an echo of the transmission signal.
IPC 8 full level
G01S 7/52 (2006.01); G01S 7/527 (2006.01); G01S 15/04 (2006.01); G01S 15/931 (2020.01)
CPC (source: EP KR)
G01S 7/52004 (2013.01 - EP KR); G01S 7/527 (2013.01 - EP KR); G01S 15/04 (2013.01 - EP KR); G01S 15/931 (2013.01 - KR); G01S 15/931 (2013.01 - EP)
Citation (search report)
See references of WO 2015158443A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102014207129 A1 20151015; CN 106164700 A 20161123; CN 106164700 B 20191126; EP 3132280 A1 20170222; KR 102289589 B1 20210817; KR 20160145086 A 20161219; WO 2015158443 A1 20151022
DOCDB simple family (application)
DE 102014207129 A 20140414; CN 201580019542 A 20150212; EP 15705567 A 20150212; EP 2015052999 W 20150212; KR 20167031275 A 20150212