DE102013205312A1 - Functional test of an ultrasonic sensor - Google Patents
Functional test of an ultrasonic sensor Download PDFInfo
- Publication number
- DE102013205312A1 DE102013205312A1 DE102013205312.6A DE102013205312A DE102013205312A1 DE 102013205312 A1 DE102013205312 A1 DE 102013205312A1 DE 102013205312 A DE102013205312 A DE 102013205312A DE 102013205312 A1 DE102013205312 A1 DE 102013205312A1
- Authority
- DE
- Germany
- Prior art keywords
- ultrasonic sensor
- measurement signals
- time window
- detected
- threshold value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52004—Means for monitoring or calibrating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
- G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/56—Display arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
Verfahren zur Funktionsprüfung eines Ultraschallsensors mit den Schritten Erfassen (100) von ersten Messsignalen (2) in einem ersten Zeitfenster, Bestimmen (110) eines Schwellenwerts in Abhängigkeit der erfassten ersten Messsignale, Erfassen (120) von zweiten Messsignalen (3) in einem zweiten Zeitfenster, Erzeugen (130) einer Kennzahl in Abhängigkeit der erfassten zweiten Messsignale und des Schwellenwertes, dadurch gekennzeichnet, dass in Abhängigkeit der Kennzahl ein Signal (4) erzeugt wird, das die Funktionsfähigkeit des Ultraschallsensors (5) repräsentiert.Method for functional testing of an ultrasonic sensor with the steps of acquiring (100) first measurement signals (2) in a first time window, determining (110) a threshold value depending on the acquired first measurement signals, acquiring (120) second measurement signals (3) in a second time window , Generating (130) a code as a function of the detected second measurement signals and the threshold value, characterized in that as a function of the code, a signal (4) is generated which represents the functionality of the ultrasonic sensor (5).
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Funktionsprüfung eines Ultraschallsensors.The invention relates to a method and a device for functional testing of an ultrasonic sensor.
Stand der TechnikState of the art
Aus der Schrift
In der Schrift
Offenbarung der ErfindungDisclosure of the invention
Das Verfahren zur Funktionsprüfung eines Ultraschallsensors erfasst erste Messsignale in einem ersten Zeitfenster und bestimmt in Abhängigkeit der ersten Messsignale einen Schwellenwert. Das Verfahren erfasst des Weiteren zweite Messsignale in einem zweiten Zeitfenster und erzeugt in Abhängigkeit der zweiten Messsignale und des Schwellenwerts eine Kennzahl. Erfindungsgemäß wird in Abhängigkeit der Kennzahl ein Signal erzeugt, das die Funktionsfähigkeit des Ultraschallsensors repräsentiert.The method for functional testing of an ultrasonic sensor detects first measurement signals in a first time window and determines a threshold value as a function of the first measurement signals. The method further detects second measurement signals in a second time window and generates a characteristic in dependence on the second measurement signals and the threshold value. According to the invention, a signal is generated as a function of the characteristic number, which signal represents the functionality of the ultrasonic sensor.
Die erfindungsgemäße Vorrichtung verwendet das erfindungsgemäße Verfahren.The device according to the invention uses the method according to the invention.
Der Vorteil des erfindungsgemäßen Verfahrens und der erfindungsgemäßen Vorrichtung ist, dass die Funktionsfähigkeit des Ultraschallsensors auf einfache Weise im laufenden Betrieb des Ultraschallsystems ermittelt werden kann. Weiterhin ist vorteilhaft, dass der Schwellenwert nicht fest vorgegeben ist, sondern dynamisch bestimmt werden kann. Außerdem können durch den Schwellenwert Objektechos und Bodenechos auf einfache Weise vom Rauschen getrennt werden.The advantage of the method according to the invention and the device according to the invention is that the functionality of the ultrasonic sensor can be determined in a simple manner during operation of the ultrasound system. Furthermore, it is advantageous that the threshold value is not fixed, but can be determined dynamically. In addition, the threshold allows object echoes and bottom echoes to be easily separated from noise.
In einer Weiterbildung wird die Kennzahl bestimmt in Abhängigkeit der Anzahl der erfassten zweiten Messsignale pro Zeiteinheit, die den Schwellenwert, insbesondere um mindestens 5%, 10%, 15% oder 20%, überschreiten.In a development, the characteristic number is determined as a function of the number of detected second measurement signals per time unit, which exceed the threshold value, in particular by at least 5%, 10%, 15% or 20%.
Der Vorteil dabei ist, dass die Kennzahl auf einfache Weise mit Hilfe eines Zählers bestimmt werden kann.The advantage here is that the code can be easily determined using a counter.
In einer weiteren Ausgestaltung wird die Kennzahl bestimmt in Abhängigkeit der Summe der Pulsbreiten der erfassten zweiten Messsignale, die den Schwellenwert, insbesondere um mindestens 5%, 10%, 15% oder 20%, überschreiten.In a further refinement, the characteristic number is determined as a function of the sum of the pulse widths of the detected second measurement signals which exceed the threshold value, in particular by at least 5%, 10%, 15% or 20%.
Der Vorteil dabei ist, dass die Kennzahl auf einfache Weise mit Hilfe eines Addierers bestimmt werden kann.The advantage here is that the code can be determined easily with the help of an adder.
In einer Weiterbildung wird das Signal erzeugt, das die Funktionsfähigkeit des Ultraschallsensors repräsentiert, wenn die Kennzahl einen Bezugswert überschreitet.In a further development, the signal is generated which represents the functionality of the ultrasonic sensor when the characteristic number exceeds a reference value.
Weitere Vorteile ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen bzw. aus den abhängigen Patentansprüchen. Further advantages will become apparent from the following description of exemplary embodiments or from the dependent claims.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Die vorliegende Erfindung wird nachfolgend anhand bevorzugter Ausführungsformen und beigefügter Zeichnungen erläutert. Es zeigen:The present invention will be explained below with reference to preferred embodiments and accompanying drawings. Show it:
Ausführungsformen der Erfindung Embodiments of the invention
In einem folgenden Schritt
In einem weiteren Schritt
In Abhängigkeit des Vergleichs der Kennzahl mit dem Bezugswert wird in einem nächsten Schritt
In einem weiteren Schritt
In dem vorstehenden Ausführungsbeispiel erfolgt Schritt
In einem weiteren Ausführungsbeispiel erfolgt die Ableitung des Schwellenwerts zeitlich nach dem Erfassen der zweiten Messsignale im zweiten Zeitfenster, aber vor der Erzeugung der Kennzahl.In a further embodiment, the derivation of the threshold takes place in time after the detection of the second measurement signals in the second time window, but before the generation of the code.
Außerdem weist das Mittel
In einem weiteren Ausführungsbeispiel wird der Schwellenwert, z. B. als Werkseinstellung, im Speicher
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102009003049 A1 [0002] DE 102009003049 A1 [0002]
- DE 102005057973 A1 [0003] DE 102005057973 A1 [0003]
- DE 102008044088 A1 [0016] DE 102008044088 A1 [0016]
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013205312.6A DE102013205312A1 (en) | 2013-03-26 | 2013-03-26 | Functional test of an ultrasonic sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013205312.6A DE102013205312A1 (en) | 2013-03-26 | 2013-03-26 | Functional test of an ultrasonic sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102013205312A1 true DE102013205312A1 (en) | 2014-10-02 |
Family
ID=51519720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102013205312.6A Ceased DE102013205312A1 (en) | 2013-03-26 | 2013-03-26 | Functional test of an ultrasonic sensor |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102013205312A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3073287A1 (en) | 2015-03-23 | 2016-09-28 | Robert Bosch Gmbh | Method and device for determining a blindness of any sensor of a sensor array |
EP3096161A1 (en) * | 2015-05-21 | 2016-11-23 | Robert Bosch Gmbh | Method for detecting continuous interference and/or foreign sound interference and corresponding device |
JP2021517646A (en) * | 2018-04-04 | 2021-07-26 | ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツングRobert Bosch Gmbh | Methods and equipment for functional monitoring of ultrasonic sensors |
WO2022101128A1 (en) * | 2020-11-11 | 2022-05-19 | Valeo Schalter Und Sensoren Gmbh | Verification of the operability of a laser scanner |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005057973A1 (en) | 2005-12-05 | 2007-06-06 | Robert Bosch Gmbh | Method for functional testing of an ultrasonic sensor and distance measuring device |
DE102008040219A1 (en) * | 2008-07-07 | 2010-01-14 | Robert Bosch Gmbh | Method for the dynamic determination of the noise level |
DE102008044088A1 (en) | 2008-11-26 | 2010-05-27 | Robert Bosch Gmbh | Method for the dynamic determination of the noise level |
DE102009003049A1 (en) | 2009-05-13 | 2010-11-18 | Robert Bosch Gmbh | Method for functional testing of an ultrasonic sensor on a motor vehicle, method for operating an ultrasonic sensor on a motor vehicle and distance measuring device with at least one ultrasonic sensor for use in a motor vehicle |
-
2013
- 2013-03-26 DE DE102013205312.6A patent/DE102013205312A1/en not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005057973A1 (en) | 2005-12-05 | 2007-06-06 | Robert Bosch Gmbh | Method for functional testing of an ultrasonic sensor and distance measuring device |
DE102008040219A1 (en) * | 2008-07-07 | 2010-01-14 | Robert Bosch Gmbh | Method for the dynamic determination of the noise level |
DE102008044088A1 (en) | 2008-11-26 | 2010-05-27 | Robert Bosch Gmbh | Method for the dynamic determination of the noise level |
DE102009003049A1 (en) | 2009-05-13 | 2010-11-18 | Robert Bosch Gmbh | Method for functional testing of an ultrasonic sensor on a motor vehicle, method for operating an ultrasonic sensor on a motor vehicle and distance measuring device with at least one ultrasonic sensor for use in a motor vehicle |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3073287A1 (en) | 2015-03-23 | 2016-09-28 | Robert Bosch Gmbh | Method and device for determining a blindness of any sensor of a sensor array |
DE102015205180A1 (en) * | 2015-03-23 | 2016-09-29 | Robert Bosch Gmbh | Method and apparatus for determining a blindness of each sensor of a sensor group |
DE102015205180B4 (en) * | 2015-03-23 | 2016-11-03 | Robert Bosch Gmbh | Method and apparatus for determining a blindness of each sensor of a sensor group |
EP3096161A1 (en) * | 2015-05-21 | 2016-11-23 | Robert Bosch Gmbh | Method for detecting continuous interference and/or foreign sound interference and corresponding device |
JP2021517646A (en) * | 2018-04-04 | 2021-07-26 | ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツングRobert Bosch Gmbh | Methods and equipment for functional monitoring of ultrasonic sensors |
JP6992197B2 (en) | 2018-04-04 | 2022-01-13 | ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング | Methods and equipment for functional monitoring of ultrasonic sensors |
US11313957B2 (en) | 2018-04-04 | 2022-04-26 | Robert Bosch Gmbh | Method and device for monitoring the function of ultrasonic sensors |
WO2022101128A1 (en) * | 2020-11-11 | 2022-05-19 | Valeo Schalter Und Sensoren Gmbh | Verification of the operability of a laser scanner |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102014226073A1 (en) | Method and device for operating a radar system of a motor vehicle | |
DE102010033207B4 (en) | Method and device for monitoring the surroundings of a vehicle | |
DE102007039348A1 (en) | Distance sensor and method for determining a distance | |
DE102014201482A1 (en) | Method and device for detecting a malfunction of an ultrasonic transducer by evaluating an impedance envelope | |
DE102015218570A1 (en) | Object identification device | |
DE102016225590A1 (en) | Radar device and sensor fusion system using these | |
DE102013205312A1 (en) | Functional test of an ultrasonic sensor | |
DE102017220860A1 (en) | Method for determining the position of the center of gravity of a vehicle | |
DE102014213122A1 (en) | Apparatus and method for sound-based environment detection | |
WO2018153892A1 (en) | Method and device for providing ultrasonic signal information | |
DE102012219508A1 (en) | Method and device for driver status detection | |
DE102019216017A1 (en) | Method and device for processing a Doppler range matrix and radar system | |
DE102021128801A1 (en) | Biological detection device | |
DE102012024334A1 (en) | Method for determining existence and e.g. position of objects for operating driver assistance device of motor car, involves performing retrodiction of existence probabilities of objects during supply of unactual sensor data to fusion system | |
DE102011121000A1 (en) | Method for determining threshold value curve for sensor of motor car, involves switching sensor to configuration mode to determine threshold value curve by which transmission signal is sent by sensor and a reception signal is received | |
DE102015225109A1 (en) | A method and apparatus for classifying eye opening data of at least one eye of an occupant of a vehicle and method and apparatus for detecting drowsiness and / or instantaneous sleep of an occupant of a vehicle | |
DE102019204209A1 (en) | Method and system for determining a functional status of a microphone | |
DE102008008956A1 (en) | Method and arrangement for availability testing of ultrasonic sensors | |
DE102018117516B3 (en) | Detection and elimination of interference signals by coded ultrasonic emissions on an ultrasonic sensor | |
DE102017128983A1 (en) | Method for estimating a height of an object in an environmental region of a motor vehicle by means of an ultrasound sensor with statistical evaluation of a received signal, control device and driver assistance system | |
DE102014207086A1 (en) | Apparatus and method for sound-based environment detection | |
DE102020103403A1 (en) | IMPACT DETECTION SYSTEM FOR A VEHICLE AND IMPACT DETECTION METHOD FOR IT | |
DE102020106498A1 (en) | Object detection device | |
DE102014224911A1 (en) | Method and device for determining statistical properties of raw measured values | |
DE102018124055A1 (en) | Method for determining a distance of an object in a swing-out area of an ultrasonic sensor, computer program product, electronic computing device and ultrasonic sensor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R012 | Request for examination validly filed | ||
R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final | ||
R003 | Refusal decision now final |
Effective date: 20141209 |