DE102016215102A1 - Pedestrian detection by radar - Google Patents
Pedestrian detection by radar Download PDFInfo
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- DE102016215102A1 DE102016215102A1 DE102016215102.9A DE102016215102A DE102016215102A1 DE 102016215102 A1 DE102016215102 A1 DE 102016215102A1 DE 102016215102 A DE102016215102 A DE 102016215102A DE 102016215102 A1 DE102016215102 A1 DE 102016215102A1
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- pedestrian
- radar
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- 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
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
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- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/42—Simultaneous measurement of distance and other co-ordinates
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- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
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- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radar Systems Or Details Thereof (AREA)
- Traffic Control Systems (AREA)
Abstract
Die Erfindung betrifft einen Radarsensor in einem Fahrzeug und ein Verfahren zur Erkennung von Fußgängern. Die aus der Radarwelle ermittelten Informationen über Ausdehnung, Geschwindigkeit und Abstand von Körperteilen eines Fußgängers werden zum Erkennen eines Fußgängers herangezogen.The invention relates to a radar sensor in a vehicle and a method for detecting pedestrians. The information about the extent, speed and distance of body parts of a pedestrian determined from the radar wave are used to detect a pedestrian.
Description
Die Erfindung betrifft einen Radarsensor in einem Fahrzeug und ein Verfahren zur Erkennung von Fußgängern. The invention relates to a radar sensor in a vehicle and a method for detecting pedestrians.
Stand der Technik State of the art
Die Sicherheitseinrichtung in Fahrzeugen wurde in der Vergangenheit weiter verbessert und dadurch die Sicherheit der Fahrzeuginsassen erhöht. Von dieser Entwicklung haben Fußgänger im Allgemeinen wenig profitiert, da sich die Sicherheitseinrichtungen auf die Fahrzeuginsassen beschränkten. The safety device in vehicles has been further improved in the past, thereby increasing the safety of the vehicle occupants. Pedestrians generally did not benefit much from this development because the safety equipment was limited to the occupants of the vehicle.
Vorrausetzung für den Schutz von Fußgängern ist zuerst ihre gesicherte Klassifizierung als Fußgänger und damit eine erfolgreiche Unterscheidung von anderen Objekten. Da in Fahrzeugen zunehmend Radarsysteme eingesetzt werden, bietet sich die Nutzung des Radarsensors zum Erkennen von Fußgängern an. A prerequisite for the protection of pedestrians is first their secure classification as a pedestrian and thus a successful distinction from other objects. As radar systems are increasingly being used in vehicles, the use of the radar sensor for recognizing pedestrians offers itself.
Aus „Detection and analysis of human motion by radar“ von Chen (
Aufgabe und Lösung Task and solution
Aufgabe der vorliegenden Erfindung ist es die Fußgängererkennung mittels Radarstrahlen noch weiter zu verbessern. Object of the present invention is to improve pedestrian detection by means of radar still further.
Die Aufgabe wird durch den Gegenstand der unabhängigen Patentansprüche gelöst. Weitere vorteilhafte Ausgestaltungen sind Gegenstand der abhängigen Patentansprüche. The object is solved by the subject matter of the independent patent claims. Further advantageous embodiments are the subject of the dependent claims.
Erfindungsgemäß weist ein Verfahren zum Erkennung eines Fußgängers folgende Schritte auf, Aussenden und Empfangen einer Radarwelle, Ermitteln einer Relativgeschwindigkeit vom Körper und mindestens einer Extremität des Fußgängers aus der empfangenen Radarwelle, Ermitteln einer Ausdehnung vom Körper und mindestens einer Extremität des Fußgängers aus der empfangenen Radarwelle, Erkennen des Fußgängers aus den ermittelten Relativgeschwindigkeiten und den Ausdehnungen. According to the invention, a method for detecting a pedestrian comprises the steps of emitting and receiving a radar wave, determining a relative velocity of the body and at least one extremity of the pedestrian from the received radar wave, determining an extent of the body and at least one extremity of the pedestrian from the received radar wave, Detecting the pedestrian from the determined relative speeds and expansions.
In vorteilhafter Weise weisen die Arm- und Beinbewegungen eine höhere Varianz der Geschwindigkeit auf als der Rumpf des Fußgängers. Die Radarreflexpunkte der Arme und Beine können dadurch einen Mikrodoppler erzeugen, der eine Klassifikation des Objektes als Fußgänger ermöglichen kann. Advantageously, the arm and leg movements have a higher variance in speed than the pedestrian's trunk. The radar reflex points of the arms and legs can thereby produce a microdoppler, which can allow a classification of the object as a pedestrian.
In einer vorteilhaften Ausgestaltung der Erfindung kann ferner ein Abstand zum Körper und mindestens einer Extremität des Fußgängers aus der empfangenen Radarwelle ermittelt werden und das Erkennen des Fußgängers ferner aus der Differenz dieser beiden Abstände erfolgen. In an advantageous embodiment of the invention, a distance to the body and at least one extremity of the pedestrian from the received radar wave can also be determined and further the detection of the pedestrian from the difference of these two distances.
In vorteilhafter Weise können so die unterschiedlen Abstände zwischen dem Radarsensor und zumindest den Armen, Beinen und Rumpf des Fußgängers für eine Klassifikation des Objektes als Fußgänger genutzt werden. Advantageously, the different distances between the radar sensor and at least the arms, legs and trunk of the pedestrian can thus be used for a classification of the object as a pedestrian.
Bevorzugt kann eine Vielzahl von Radarwellen ausgesendet und empfangen werden und der Fußgänger durch Bilden von mindestens einem Mittelwert der ermittelten Relativgeschwindigkeiten und Ausdehnungen erkannt werden. Preferably, a plurality of radar waves can be transmitted and received, and the pedestrian can be identified by forming at least one mean value of the determined relative speeds and expansions.
In vorteilhafter Weise ermöglicht die Mittelwertbildung von ermittelten Relativgeschwindigkeiten und/oder Ausdehnungen die Erkennung des Fußgängers weiter zu verbessern. Einzelne Messfehler können somit weniger ins Gewicht fallen. Advantageously, the averaging of determined relative speeds and / or expansions makes it possible to further improve the recognition of the pedestrian. Individual measurement errors can thus be less significant.
Weiter Bevorzugt kann eine Vielzahl von Radarwellen ausgesendet und empfangen werden und der Fußgänger durch eine Periodizität in den ermittelten Relativgeschwindigkeit erkannt werden. Further preferably, a plurality of radar waves can be transmitted and received and the pedestrian can be recognized by a periodicity in the determined relative speed.
In vorteilhafter Weise kann aus der Periodizität der ermittelten Relativgeschwindigkeit auf einen Fußgänger geschlossen werden, da sich Arme und Beine innerhalb von bestimmten Grenzen mit gleicher Geschwindigkeit bewegen. Advantageously, it can be concluded from the periodicity of the determined relative speed to a pedestrian, as move arms and legs within certain limits at the same speed.
Weiter bevorzugt kann der Fußgänger erkannt werden, wenn mindestens eine der folgenden Bedingungen vorliegt, die Geschwindigkeit eines Oberkörpers unter 15 km/h liegt, die Geschwindigkeit eines Beines unter 30 km/h, die Geschwindigkeit eines Armes unter 30 km/h, und der Abstand von zwei Beinen relativ zueinander weniger als 1 m beträgt. More preferably, the pedestrian can be identified if at least one of the following conditions is present, the speed of a torso below 15 km / h, the speed of a leg below 30 km / h, the speed of an arm below 30 km / h, and the distance of two legs relative to each other is less than 1 m.
In vorteilhafter Weise werden damit Grenzen berücksichtigt, die eine Person nicht überschreiten kann. Ein ermittelter Wert außerhalb dieser Grenzen kann somit das Erkennen eines Objekts als Fußgänger ausschließen. Advantageously, this limits are taken into account that can not exceed a person. A determined value outside of these limits can therefore exclude the recognition of an object as a pedestrian.
In einer weiteren Ausgestaltung der Erfindung kann eine Warnung abhängig von einem erkannten Fußgänger an den Fahrer erfolgen. In a further embodiment of the invention, a warning can be made depending on a detected pedestrian to the driver.
In vorteilhafter Weise kann der Fahrer vor Fußgängern gewarnt werden und sich somit das Verletzungsrisiko von Fußgängern im Straßenverkehr verringern. Advantageously, the driver can be warned against pedestrians and thus reduce the risk of injury of pedestrians in traffic.
Erfindungsgemäß ist ein Radarsensor zum Durchführen eines der vorherigen Verfahren eingerichtet. According to the invention, a radar sensor is set up to perform one of the previous methods.
Figurenbeschreibung figure description
Die in
Die Relativgeschwindigkeitsverteilung
Eine vergrößerte Darstellung der Relativgeschwindigkeitsverteilung
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 Nicht-PatentliteraturCited non-patent literature
- 1-4244-1539-X/08, 2008 IEEE [0004] 1-4244-1539-X / 08, 2008 IEEE [0004]
Claims (7)
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DE102016215102.9A DE102016215102A1 (en) | 2016-08-12 | 2016-08-12 | Pedestrian detection by radar |
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DE102016215102.9A DE102016215102A1 (en) | 2016-08-12 | 2016-08-12 | Pedestrian detection by radar |
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Cited By (10)
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---|---|---|---|---|
WO2019141588A1 (en) * | 2018-01-18 | 2019-07-25 | Audi Ag | Method for operating a vehicle guiding system which is designed to guide a motor vehicle in a completely automated manner, and motor vehicle |
EP3553552A1 (en) * | 2018-04-11 | 2019-10-16 | Aptiv Technologies Limited | Method for the recognition of a moving pedestrian |
EP3553551A1 (en) * | 2018-04-10 | 2019-10-16 | Aptiv Technologies Limited | Method for the recognition of an object |
DE102019201892A1 (en) * | 2019-02-13 | 2020-08-13 | Continental Automotive Gmbh | Method for detecting movement of an object |
WO2021117559A1 (en) * | 2019-12-09 | 2021-06-17 | 京セラ株式会社 | Electronic device, method for controlling electronic device, and program |
CN113138386A (en) * | 2020-01-16 | 2021-07-20 | 为昇科科技股份有限公司 | Living body radar detection system, judgment method thereof and feature database establishment method |
US11320830B2 (en) | 2019-10-28 | 2022-05-03 | Deere & Company | Probabilistic decision support for obstacle detection and classification in a working area |
US11402486B2 (en) | 2018-04-11 | 2022-08-02 | Aptiv Technologies Limited | Method for the recognition of objects |
US12032059B2 (en) | 2019-05-24 | 2024-07-09 | 3M Innovative Properties Company | Radar-optical fusion article and system |
EP4254005A4 (en) * | 2020-11-27 | 2024-10-30 | Kyocera Corp | Electronic device, electronic device control method, and program |
Citations (1)
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DE102016001772A1 (en) * | 2016-02-16 | 2016-08-11 | Daimler Ag | Method for movement and behavior prediction in objects in a vehicle environment |
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2016
- 2016-08-12 DE DE102016215102.9A patent/DE102016215102A1/en not_active Ceased
Patent Citations (1)
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DE102016001772A1 (en) * | 2016-02-16 | 2016-08-11 | Daimler Ag | Method for movement and behavior prediction in objects in a vehicle environment |
Non-Patent Citations (5)
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1-4244-1539-X/08, 2008 IEEE |
BJÖRKLUND, S. u.a.: Millimeter-Wave Radar Micro-Doppler Signatures of Human Motion. In: Proceedings of the International Radar Symposium (IRS) 2011 * |
CHEN, V.C.: Detection and Analysis of Human Motion by Radar. In: IEEE Radar Conference, 1-4244-1539-X/08, 2008 * |
ROHLING, H. u.a.: Pedestrian Detection Procedure integrated into an 24 GHz Automotive Radar. In: IEEE Radar Conference 2010, S. 1229-1232 * |
RYTEL-ANDRIANIK, R. u.a.: Micro-Range, micro-Doppler joint analysis of pedestrian radar echo. In: Signal Processing Symposium (SPSympo), 2015 * |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2019141588A1 (en) * | 2018-01-18 | 2019-07-25 | Audi Ag | Method for operating a vehicle guiding system which is designed to guide a motor vehicle in a completely automated manner, and motor vehicle |
US11131766B2 (en) | 2018-04-10 | 2021-09-28 | Aptiv Technologies Limited | Method for the recognition of an object |
EP3553551A1 (en) * | 2018-04-10 | 2019-10-16 | Aptiv Technologies Limited | Method for the recognition of an object |
US10929653B2 (en) | 2018-04-11 | 2021-02-23 | Aptiv Technologies Limited | Method for the recognition of a moving pedestrian |
US11402486B2 (en) | 2018-04-11 | 2022-08-02 | Aptiv Technologies Limited | Method for the recognition of objects |
EP3553552A1 (en) * | 2018-04-11 | 2019-10-16 | Aptiv Technologies Limited | Method for the recognition of a moving pedestrian |
DE102019201892A1 (en) * | 2019-02-13 | 2020-08-13 | Continental Automotive Gmbh | Method for detecting movement of an object |
US12032059B2 (en) | 2019-05-24 | 2024-07-09 | 3M Innovative Properties Company | Radar-optical fusion article and system |
US11320830B2 (en) | 2019-10-28 | 2022-05-03 | Deere & Company | Probabilistic decision support for obstacle detection and classification in a working area |
JP7153784B2 (en) | 2019-12-09 | 2022-10-14 | 京セラ株式会社 | ELECTRONIC DEVICE, ELECTRONIC DEVICE CONTROL METHOD, AND PROGRAM |
JP2022009825A (en) * | 2019-12-09 | 2022-01-14 | 京セラ株式会社 | Electronic apparatus, method for controlling electronic apparatus, and program |
JPWO2021117559A1 (en) * | 2019-12-09 | 2021-12-16 | 京セラ株式会社 | Electronic devices, control methods and programs for electronic devices |
US20230003876A1 (en) * | 2019-12-09 | 2023-01-05 | Kyocera Corporation | Electronic device, method for controlling electronic device, and program |
WO2021117559A1 (en) * | 2019-12-09 | 2021-06-17 | 京セラ株式会社 | Electronic device, method for controlling electronic device, and program |
EP3851871A1 (en) * | 2020-01-16 | 2021-07-21 | Cubtek Inc. | Living body radar system, identification method, and feature database establishment method |
CN113138386A (en) * | 2020-01-16 | 2021-07-20 | 为昇科科技股份有限公司 | Living body radar detection system, judgment method thereof and feature database establishment method |
EP4254005A4 (en) * | 2020-11-27 | 2024-10-30 | Kyocera Corp | Electronic device, electronic device control method, and program |
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