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DE4442189C2 - Distance measurement and selective information transfer system for automotive applications - Google Patents

Distance measurement and selective information transfer system for automotive applications

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Publication number
DE4442189C2
DE4442189C2 DE4442189A DE4442189A DE4442189C2 DE 4442189 C2 DE4442189 C2 DE 4442189C2 DE 4442189 A DE4442189 A DE 4442189A DE 4442189 A DE4442189 A DE 4442189A DE 4442189 C2 DE4442189 C2 DE 4442189C2
Authority
DE
Germany
Prior art keywords
distance
information
distance measurement
trigger
transfer system
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.)
Expired - Fee Related
Application number
DE4442189A
Other languages
German (de)
Other versions
DE4442189A1 (en
Inventor
Martin Spies
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE4442189A priority Critical patent/DE4442189C2/en
Publication of DE4442189A1 publication Critical patent/DE4442189A1/en
Application granted granted Critical
Publication of DE4442189C2 publication Critical patent/DE4442189C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/091—Traffic information broadcasting
    • G08G1/092—Coding or decoding of the information
    • 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems
    • G08G1/161—Decentralised systems, e.g. inter-vehicle communication
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0134—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to imminent contact with an obstacle, e.g. using radar systems
    • 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
    • G01S2013/9316—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles combined with communication equipment with other vehicles or with base stations
    • 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
    • G01S2013/9323—Alternative operation using light waves
    • 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
    • G01S7/003—Transmission of data between radar, sonar or lidar systems and remote stations
    • G01S7/006—Transmission of data between radar, sonar or lidar systems and remote stations using shared front-end circuitry, e.g. antennas
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096766—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission
    • G08G1/096783—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission where the origin of the information is a roadside individual element

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Optical Radar Systems And Details Thereof (AREA)

Description

Stand der TechnikState of the art

Zur reinen Abstandsmessung oder Differenzgeschwindigkeitsmessung mit Licht- oder Hochfrequenzimpulsen sind eine Reihe von Verfahren wie z. B. DE 41 27 168 C2, DE 36 40 449 C1, DE 30 20 996 C3, DE 41 23 056 A1 bekannt.For pure distance measurement or differential speed measurement with light or Radio frequency pulses are a number of methods such as e.g. B. DE 41 27 168 C2, DE 36 40 449 C1, DE 30 20 996 C3, DE 41 23 056 A1 are known.

Für die Informationsübertragung von Fahrzeug zu Fahrzeug und zu Verkehrsleitsystemen sind Funk, Telefon, Signalbrücken und Infrarot-Sende- und Empfangseinrichtungen be­ kannt wie z. B. DE 28 08 544 C2 und US 5,070,334.For the transmission of information from vehicle to vehicle and to traffic management systems are radio, telephone, signal bridges and infrared transmitters and receivers knows how z. B. DE 28 08 544 C2 and US 5,070,334.

Alle diese Systeme haben den Nachteil, daß Sie zur Selektierung der Teilnehmer entwe­ der eine Kodierung benötigen oder nur im extremen Nahbereich von einigen Metern funk­ tionieren.All these systems have the disadvantage that you either have to select the participants who need coding or only radio in the extremely close range of a few meters tioning.

Beschreibung der ErfindungDescription of the invention

Vorliegende Erfindung nützt das in mehreren Strahlbereichen (Kanälen) messende Abstandsmeßsystem zugleich zur Informationsübertragung zwischen Fahrzeugen und auch zu Verkehrsschildern und Baken und selektiert die Information durch die gleich­ zeitige Verarbeitung der gemessenen Entfernung zum Informationssender und -empfänger.The present invention makes use of that which measures in several beam areas (channels) Distance measuring system for the transmission of information between vehicles and also to traffic signs and beacons and selects the information through the same timely processing of the measured distance to the information transmitter and -receiver.

Zu diesem Zweck besteht gemäß Fig. 1 das Gesamtsystem aus Empfangs- und Sende­ optik (101), aus der Empfangseinheit (102) bestehend aus mehreren Kanälen, der Sende­ einheit (103) ebenfalls mit mehreren Kanälen. Diese beiden Einheiten (102, 103) sind mit dem Signalprozessor (104) und seiner Taktsteuerung verbunden. Dem System wird eine Einheit für Informationsübertragung und -empfang (105) hinzugefügt, die direkt mit dem Auswerterechner (106) und damit mit dem Signalprozessor (104) verbunden oder inte­ griert ist.For this purpose, according to FIG. 1, the overall system consists of receiving and transmitting optics ( 101 ), of the receiving unit ( 102 ) consisting of several channels, the transmitting unit ( 103 ) also having several channels. These two units ( 102 , 103 ) are connected to the signal processor ( 104 ) and its clock control. The system is a unit for information transmission and reception ( 105 ) is added, which is directly connected or integrated with the evaluation computer ( 106 ) and thus with the signal processor ( 104 ).

Das System hat eine Versorgung (107) und eine Schnittstelle zum Fahrzeug (108). Das System kann mit Lichtquellen oder Hochfrequenzstrahlung arbeiten.The system has a supply ( 107 ) and an interface to the vehicle ( 108 ). The system can work with light sources or high frequency radiation.

Bei der Entfernungsmessung werden je Kanal mehrere Impulse ausgesendet, die bei der erfindungsgemäßen Informationsübertragung wie folgt verwendet werden:
Zum einen kann die Entfernungsmessung getrennt von der Informationsübertragung erfol­ gen. Entsprechend Fig. 2 wird ein Impulszug 201 ausgesandt der als Impulszug 202 empfangen wird. Nach diesem Impulszug wird mit dem gleichen Sender die Information, z. B. durch zeitliche Kodierung der Pulse (203) übertragen und vom Partner-Kfz oder -Sig­ nal oder -Informationssystem die Information als kodierte Impulsgruppe (204) abgegeben und durch das System empfangen. Durch die Korrelation dieser Information mit der Ent­ fernungsmessung und dem jeweiligen Sende-Empfangskanal kann diese Information ei­ nem bestimmten Partner zugeordnet werden.When measuring distance, several pulses are emitted per channel, which are used in the information transmission according to the invention as follows:
On the one hand, the distance measurement can take place separately from the information transmission. According to FIG. 2, a pulse train 201 is sent which is received as a pulse train 202 . After this pulse train with the same transmitter, the information such. B. transmitted by time coding of the pulses ( 203 ) and from the partner vehicle or signal or information system the information as a coded pulse group ( 204 ) and received by the system. By correlating this information with the distance measurement and the respective send / receive channel, this information can be assigned to a specific partner.

Zum anderen ist es möglich die Sendeimpulsgruppe, die der Entfernungsmessung dient, entsprechend Fig. 3 direkt im Zeitkodierverfahren so zu gestalten, daß Entfernungsmes­ sung und Informationsübertragung zugleich erfolgen.On the other hand, it is possible to design the transmission pulse group used for distance measurement according to FIG. 3 directly in the time coding method so that distance measurement and information transmission take place simultaneously.

Die Antwort des Partners erfolgt als Impulsgruppe (302) jeweils mit einer bekannten Zeit­ differenz (303) von z. B. 100 ns-10 µs und ist damit eindeutig zuordenbar und vom Ab­ standsmeßsignal (304) unterscheidbar, da die Laufzeit durch die bekannte Entfernung ebenfalls durch die Halbierung der durch die Entfernungsmessung ermittelten Laufzeit (305) ausgeglichen werden kann.The partner's response is as a pulse group ( 302 ) with a known time difference ( 303 ) of z. B. 100 ns-10 microseconds and is thus clearly assignable and distinguishable from the distance measurement signal ( 304 ), since the transit time can also be compensated for by the known distance by halving the transit time determined by the distance measurement ( 305 ).

Durch dieses Verfahren können mehrere Informationen aus unterschiedlichen Entfernun­ gen räumlich durch die Anordnung der Kanäle und abstandsmäßig durch die Entfernungs­ messung zugeordnet werden.This method allows multiple pieces of information to be moved from different distances ge spatially by the arrangement of the channels and spaced by the distance measurement can be assigned.

Dabei wird z. B. entsprechend Fig. 4 vom Fahrzeug (401) das System mit seinen 7 Kanä­ len (402a bis 402g) eingesetzt. Das Fahrzeug (403) hat den Abstand (4032) und befindet sich in den Kanälen (402f) und (402g). Seine Information an das Fahrzeug (401) setzt es mit dem Signal (4031) in Kanal (402g) ab. Das gleiche gilt für das Fahrzeug (404) mit sei­ nem Abstand (4042) und seiner Information (4041) im Kanal (402d) und die Information aus dem Verkehrszeichen (405) mit seinem Abstand (4052) und seiner Information (4051) in Kanal (402a) und (402b). Damit sind alle Informationen eindeutig zuordenbar. Die Ko­ dierung der Information kann innerhalb der Entfernungsmessung mit Mehrfachpulsen in sehr kurzem Abstand von z. B. 10 ns erfolgen oder bei sequentieller Entferungserfassung in einem entsprechenden Raster, bei dem keine oder wenig Mehrdeutigkeiten mit dem ei­ gentlichen Meßsignal auftreten.Here, for. B. according to Fig. 4 of the vehicle ( 401 ) the system with its 7 channels ( 402 a to 402 g). The vehicle ( 403 ) has the distance ( 4032 ) and is in the channels ( 402 f) and ( 402 g). It sends its information to the vehicle ( 401 ) with the signal ( 4031 ) in channel ( 402 g). The same applies to the vehicle ( 404 ) with its distance ( 4042 ) and its information ( 4041 ) in the channel ( 402 d) and the information from the traffic sign ( 405 ) with its distance ( 4052 ) and its information ( 4051 ) in Channel ( 402 a) and ( 402 b). This means that all information can be clearly assigned. The coding of the information can be within the distance measurement with multiple pulses in a very short distance from z. B. 10 ns or with sequential distance detection in a corresponding grid, in which little or no ambiguity with the egg yeast measurement signal occur.

In das System können auch reine Empfänger entsprechend Fig. 5 eingebunden werden die nur Empfangsoptik (501), Empfänger (502), Signalprozessor (503), Datenselektion (504), Fahrzeugschnittstelle (505) und Versorgung (506) enthalten. Der Abstand wird diesem reinen Empfangssystem durch den jeweiligen Sender mitgeteilt. Dieses System kann zur Aktivierung oder Vorbereitung von passiven Schutzmaßnahmen für Fahrzeuge und oder Insassen bei Front-, Seiten- oder Heckaufprall verwendet werden.Pure receivers according to FIG. 5 can also be integrated into the system which only contain the receiving optics ( 501 ), receiver ( 502 ), signal processor ( 503 ), data selection ( 504 ), vehicle interface ( 505 ) and supply ( 506 ). The distance is communicated to this pure reception system by the respective transmitter. This system can be used to activate or prepare passive protective measures for vehicles and or occupants in the event of a front, side or rear impact.

Darüber hinaus ist das System für die Beurteilung von Verkehrssituationen über informa­ tionsfähige Verkehrszeichen oder Baken geeignet. In addition, the system for assessing traffic situations is via informa capable traffic signs or beacons.  

Bei Einführung einer Straßenbenutzungsgebühr kann das erfindungsgemäße System auch zur Erfassung, Identifizierung und Kostenzuordnung verwendet werden.With the introduction of a road user fee, the system according to the invention can can also be used for recording, identification and cost allocation.

Claims (5)

1. System zur Abstandsmessung und selektiven Informationsübertragung mittels elektromagnetischer Strahlung für Kraftfahrzeug-Verkehrs­ anwendungen, dadurch gekennzeichnet, dass die reine Abstands­ messung nach dem Impulslaufzeit-Messprinzip erfolgt und mit diesen Impulsen auch Informationen ausgewertet werden und das Senden und Empfangen über mehrere räumlich getrennte Strahlbereiche (Kanäle) erfolgt.1. System for distance measurement and selective information transmission by means of electromagnetic radiation for motor vehicle traffic applications, characterized in that the pure distance measurement is carried out according to the pulse transit time measurement principle and with these pulses information is also evaluated and the transmission and reception over several spatially separated beam areas ( Channels). 2. System nach Anspruch 1, dadurch gekennzeichnet, dass die Informa­ tionsübertragung entweder zusammen mit oder zeitlich getrennt von der Abstandsmessung erfolgt.2. System according to claim 1, characterized in that the informa tion transfer either together with or separately from the Distance measurement takes place. 3. System nach Anspruch 1, dadurch gekennzeichnet, dass eine Korrela­ tion zwischen Abstand und Information verwendet wird, um die die Information austauschenden Partner und deren Abstand untereinander zu definieren und abstandsmäßig und/oder räumlich zuzuordnen.3. System according to claim 1, characterized in that a correla tion between distance and information is used by the Information exchanging partners and their distance from each other to be defined and assigned in terms of distance and / or space. 4. System nach einem der vorhergehenden Ansprüche, dadurch gekenn­ zeichnet, dass passive oder aktive Informationsübertragungssysteme zum Auslösen oder Vorbereiten der Auslösung einer Sicherheits- oder Schutzmaßnahmen dienen.4. System according to any one of the preceding claims, characterized records that passive or active information transmission systems to trigger or prepare to trigger a security or Protective measures serve. 5. Verwendung des Systems nach einem der vorhergehenden Ansprüche zur Verkehrsüberwachung, Straßenbenutzung, Identifizierung von Fahr­ zeugen und Kostenzuordnung.5. Use of the system according to one of the preceding claims for traffic monitoring, road use, identification of driving witness and cost allocation.
DE4442189A 1994-11-28 1994-11-28 Distance measurement and selective information transfer system for automotive applications Expired - Fee Related DE4442189C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4442189A DE4442189C2 (en) 1994-11-28 1994-11-28 Distance measurement and selective information transfer system for automotive applications

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4442189A DE4442189C2 (en) 1994-11-28 1994-11-28 Distance measurement and selective information transfer system for automotive applications

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DE4442189A1 DE4442189A1 (en) 1996-05-30
DE4442189C2 true DE4442189C2 (en) 2002-04-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012103085B4 (en) 2011-04-12 2023-02-02 Electronics And Telecommunications Research Institute radar device

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DE19625960C2 (en) * 1996-06-28 2000-05-31 Thomas Rudel Device for the transmission of information from vehicle to vehicle
DE19732044A1 (en) * 1997-07-25 1999-02-11 Bosch Gmbh Robert Distance measurement arrangement for motor vehicles
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DE19902185A1 (en) * 1999-01-21 2000-08-10 Bosch Gmbh Robert Device for determining the distance and data transmission in a motor vehicle
DE19963006A1 (en) 1999-12-24 2001-06-28 Bosch Gmbh Robert Method to detect and evaluate objects near vehicle, involves determining speed and distance of target object within virtual barrier or range gate, whose length and distance from vehicle can be varied
DE10004215C2 (en) * 2000-02-01 2003-04-17 Bosch Gmbh Robert Use of an arrangement for length measurement and information transmission for a power tool
DE10049906A1 (en) 2000-10-10 2002-04-11 Bosch Gmbh Robert Sensor device with pulse-echo radar system e.g. for automobile, uses switched transmitter and receiver groups with separate detection of stoichastic pulse sequence for each transmission window
DE10124909A1 (en) 2001-05-22 2002-12-19 Bosch Gmbh Robert Method and device for operating a radar sensor arrangement
DE10208332A1 (en) * 2002-02-27 2003-09-04 Bosch Gmbh Robert Pulse radar device and method for detecting, for detecting and / or for evaluating at least one object
DE10350553A1 (en) 2003-10-29 2005-06-02 Robert Bosch Gmbh Device and method for detecting, detecting and / or evaluating at least one object
DE10358857A1 (en) * 2003-12-16 2005-07-21 Robert Bosch Gmbh Distance measuring device for control
JP2005181193A (en) * 2003-12-22 2005-07-07 Tdk Corp Pulse-wave radar apparatus
GB2415560A (en) * 2004-06-25 2005-12-28 Instro Prec Ltd Vehicle safety system having a combined range finding means and a communication means
EP3164860A4 (en) 2014-07-03 2018-01-17 GM Global Technology Operations LLC Vehicle cognitive radar methods and systems
US10495732B2 (en) 2014-07-03 2019-12-03 GM Global Technology Operations LLC Vehicle radar methods and systems
CN107209262A (en) * 2014-07-03 2017-09-26 通用汽车环球科技运作有限责任公司 Radar for vehicle method and system

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DE102012103085B4 (en) 2011-04-12 2023-02-02 Electronics And Telecommunications Research Institute radar device

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