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GB2268031A - Automobile sensing and communicating transponder - Google Patents

Automobile sensing and communicating transponder Download PDF

Info

Publication number
GB2268031A
GB2268031A GB9211632A GB9211632A GB2268031A GB 2268031 A GB2268031 A GB 2268031A GB 9211632 A GB9211632 A GB 9211632A GB 9211632 A GB9211632 A GB 9211632A GB 2268031 A GB2268031 A GB 2268031A
Authority
GB
United Kingdom
Prior art keywords
transponder
vehicle
signal generator
interrogating signal
radar
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.)
Withdrawn
Application number
GB9211632A
Other versions
GB9211632D0 (en
Inventor
David William Jesinger
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.)
Roke Manor Research Ltd
Original Assignee
Roke Manor Research Ltd
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 Roke Manor Research Ltd filed Critical Roke Manor Research Ltd
Priority to GB9211632A priority Critical patent/GB2268031A/en
Publication of GB9211632D0 publication Critical patent/GB9211632D0/en
Publication of GB2268031A publication Critical patent/GB2268031A/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/82—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted
    • G01S13/825—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted with exchange of information between interrogator and responder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or trains
    • B61L25/04—Indicating or recording train identities
    • B61L25/045—Indicating or recording train identities using reradiating tags
    • 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
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • G01S13/765—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted with exchange of information between interrogator and responder
    • 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
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/017—Detecting movement of traffic to be counted or controlled identifying 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
    • 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
    • G01S2013/9327—Sensor installation details
    • G01S2013/93271—Sensor installation details in the front of the 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
    • 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
    • G01S2013/9329—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles cooperating with reflectors or transponders

Landscapes

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

Abstract

The transponder is for use in conjunction with a microwave vehicle sensing apparatus Fig. 2 (not shown). The transponder comprises means for incorporating identification data or other information relevant to a vehicle on the received signal by frequency or time domain coding of the offset signal generated by modulator 2 and means 4 for re-radiating the response signal. The transponder is either mounted on a vehicle or is interrogated by a vehicle. <IMAGE>

Description

Automobile Sensinq and Communicatinq Transponder The present invention relates to transponders for use in conjunction with microwave automobile sensing systems.
Our co-pending application of even date describes a high range resolution automobile radar which can be fitted to automobiles in order to provide collision avoidance and station-keeping capabilities among other facilities.
According to the present invention there is provided a transponder for use in conjunction with a microwave vehicle sensing apparatus, comprising means for receiving microwave sensing signals, means for generating data signals incorporating information relevant to a vehicle in conjunction with which the transponder is being used, means for combining the data signals with the received sensing signals to provide response signals and means for radiating the response signals.
The means for generating the data signals may comprise a frequency-offsetting mixer/oscillator and the data signals may embody information in the form of time or frequency domain coding of the output of the frequency offset oscillator.
The microwave vehicle sensing apparatus may comprise a radar system adapted to provide position data related to an automobile.
The invention will now be described, by way of example, with reference to the accompanying drawings, in ;hic > , Figure 1 is a block circuit diagram of a transponder embodying the invention, Figure 2 is a representation of the embodiment of Figure 1 used in a radar based vehicle station keeping system, Figure 3 is a representation of the embodiment of Figure 1 in a road-to-vehicle communication system, and Figure 4 is a representation of the embodiment of Figure 1 in a vehicle-to-road communication system.
Referring to Figure 1, an automobile communications transponder embodying the invention comprises a receiving antenna 1, a frequency offset-digital modulator 2, and a mixer 3 to which signals received by the antenna 1 and the output signals from the modulator 2 are applied. The output signals from the modulator 2 are arranged to embody information relevant to a vehicle, not shorn, in conjunction with which the transponder is being used.
The information may be embodied in the forms of time or frequency domain coding of the offset frequence signal generated by the modulator 2. The resultant response signals are radiated by an output antenna 4. If desired, an amplifier 5, as shown by the dotted outline, can be included between the mixer 3 and the antenna 4.
Any signal received by the antenna 1 is first translated by the modulator 2 and mixer 3 and then radiated by the antenna 4, with cr without amplification.
Because the transponder itself does not produce a response signal in the microwave region of the electromagnetic spectrum, 5 low in cost no pot:er consumption. Radar signals returned by surrounding clutter remain at the frequency transmitted by the radar signal generator (+ any appropriate Doppler shift) and as such cannot be distinguished in the offset transponder channel. This is a very important requirement for the practical operation of a radar based system. Information can be transferred from the transponder to a receiver by frequency or time domain coding of the offset oscillator/modulator 2. Also the operating range of the transponder can be varied by altering the amount of amplification, if any, incorporated into the loop.
Figure 2 shows a transponder similar to that described with reference to Figure 1 incorporated in a vehicle station keeping system. Referring to the drawing, a vehicle 21 is fitted with a range radar transmitter 22 of the type described in our co-pending application. Another vehicle 23 is fitted with a rearward facing transponder 24 of the type previously described. When the vehicle 23 is within a specified range gate of the vehicle 21, the transponder 24 radiates a signal which can be utilised to concrol the drive system of the vehicle 21 to monitor the specified separation between the vehicles 21 and 23. If desire, the transponder 24 can be made to emit a signal which positively identifies the vehicle 21 and also carries information needed to control the vehicle group as a whole.
Figure 3 shows how information can be relayed from a roadside station to vehicles travelling along the road.
A transponder 31 such as that described with reference to Figure 1 is mounted on a gantry 32 in such a position that it can be interrogated by a radar sensor 33 mounted on a vehicle 34. The transponder 31 can be arranged to r de traffic and/or route in1o) Oll to the interrogating vehicle 34. If desired, the transponder 31 can have more than one offset channel so as to enable differing functions to be performed. Also, transponders could be used to mark hazards.
Figure 4 shows an arrangement which, in effect, is the inverse of that of the embodiment of Figure 3. In this case, an interrogating radar 41 is mounted on a gantry 42 and the transponder 43 is mounted upon the rear of a vehicle 44. Such a system could be used te implement road pricing, locate security or emergency vehicles, or even track stolen cars.

Claims (9)

  1. Claims
    Autombile Sensinq and Communicatinq Transnonder 1. A transponder for use in conjunction with a microwave vehicle sensing apparatus, comprising means for receiving microwave sensing signals, means for generating data signals incorporating information relevant to a vehicle in conjunction with which the transponder is being used, means for combining the data signals with the received sensing signals to provide response signals and means for radiating the response signals.
  2. 2. A transponder according to Claim 1 wherein the means for generating the data signals comprises a frequencyoffsetting oscillator.
  3. 3. A transponder according to Claim 2 wherein the output of the frequency offsetting oscillator is time or frequency domain coded to embody the information relevant to the said vehicle.
  4. 4. A transponder according to any of Claims 1 to 3 in association with a radar interrogating signal generator.
  5. 5. A transponder and radar interrogating signal generator according to Claim 4 wherein the transponder is attached to one vehicle and the radar interrogating signal generator is attached to another vehicle, the arrangement being such that the transponder only generates response signals when the separation between the vehicles is within predetermined limits.
  6. 6. A transponder and radar interrogating signal generator according to Claim A wherein the transponder is c.ėd to a vehicle and the radar interrogating signal generator is attached to a structure associated with a road upon which the vehicle is travelling.
  7. 7. A transponder and radar interrogating signal generator according to Claim 4 wherein the transponder is attached to a structure associated with a road upon which the vehicle is travelling and the radar interrogating signal generator is attached to the vehicle.
  8. 8. A transponder for use in conjunction with a microwave vehicle sensing apparatus substantially as hereinbefore described and with reference to Figure 1 of the accompanying drawings.
  9. 9. A transponder in association with a microwave interrogating signal generator substantially as hereinbefore described and with reference to Figures 2 to 4 of the accompanying drawings.
GB9211632A 1992-06-02 1992-06-02 Automobile sensing and communicating transponder Withdrawn GB2268031A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9211632A GB2268031A (en) 1992-06-02 1992-06-02 Automobile sensing and communicating transponder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9211632A GB2268031A (en) 1992-06-02 1992-06-02 Automobile sensing and communicating transponder

Publications (2)

Publication Number Publication Date
GB9211632D0 GB9211632D0 (en) 1992-07-15
GB2268031A true GB2268031A (en) 1993-12-22

Family

ID=10716379

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9211632A Withdrawn GB2268031A (en) 1992-06-02 1992-06-02 Automobile sensing and communicating transponder

Country Status (1)

Country Link
GB (1) GB2268031A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4417688C1 (en) * 1994-05-20 1995-07-13 Licentia Gmbh Transponder system for moving motor vehicle identification
WO1998008311A1 (en) * 1996-08-19 1998-02-26 Tagmaster Ab Information link
US6577266B1 (en) * 2001-10-15 2003-06-10 Sandia Corporation Transponder data processing methods and systems
EP1209615A3 (en) * 2000-11-06 2003-07-23 Advanced Microwave Engineering di Salvador Claudio e C. S.a.s. Dual band transponder system
WO2005106526A1 (en) * 2004-04-27 2005-11-10 Daimlerchrysler Ag Method for initiating safety measures for a motor vehicle

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1346846A (en) * 1970-05-05 1974-02-13 Sfim Process and system for the identification of a vehicle
GB1488850A (en) * 1973-12-27 1977-10-12 Rca Corp Electronic identification system
GB1505152A (en) * 1974-08-16 1978-03-30 Philips Ltd Transponder system
GB1507050A (en) * 1975-03-21 1978-04-12 Plessey Co Ltd Interrogator/transponder systems
US4104630A (en) * 1976-06-21 1978-08-01 Chasek Norman E Vehicle identification system, using microwaves
GB1534750A (en) * 1975-12-25 1978-12-06 Tokyo Shibaura Electric Co Object identifying apparatus
GB1538157A (en) * 1975-03-27 1979-01-10 Stiftelsen Inst Mikrovags System for the registration of objects
GB2163324A (en) * 1984-08-16 1986-02-19 Electromatic Transponder
GB2227909A (en) * 1988-11-03 1990-08-08 Nat Res Dev Transmission and reception of electric signals carrying information : automatic toll collection.
GB2239571A (en) * 1989-12-29 1991-07-03 Schlumberger Ind Ltd Transponder

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1346846A (en) * 1970-05-05 1974-02-13 Sfim Process and system for the identification of a vehicle
GB1488850A (en) * 1973-12-27 1977-10-12 Rca Corp Electronic identification system
GB1505152A (en) * 1974-08-16 1978-03-30 Philips Ltd Transponder system
GB1507050A (en) * 1975-03-21 1978-04-12 Plessey Co Ltd Interrogator/transponder systems
GB1538157A (en) * 1975-03-27 1979-01-10 Stiftelsen Inst Mikrovags System for the registration of objects
GB1534750A (en) * 1975-12-25 1978-12-06 Tokyo Shibaura Electric Co Object identifying apparatus
US4104630A (en) * 1976-06-21 1978-08-01 Chasek Norman E Vehicle identification system, using microwaves
GB2163324A (en) * 1984-08-16 1986-02-19 Electromatic Transponder
GB2227909A (en) * 1988-11-03 1990-08-08 Nat Res Dev Transmission and reception of electric signals carrying information : automatic toll collection.
GB2239571A (en) * 1989-12-29 1991-07-03 Schlumberger Ind Ltd Transponder

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4417688C1 (en) * 1994-05-20 1995-07-13 Licentia Gmbh Transponder system for moving motor vehicle identification
US5719550A (en) * 1994-05-20 1998-02-17 Licentia Patent Verwaltungs-Gmbh Arrangement for identification of a movable object having a transponder
WO1998008311A1 (en) * 1996-08-19 1998-02-26 Tagmaster Ab Information link
EP1209615A3 (en) * 2000-11-06 2003-07-23 Advanced Microwave Engineering di Salvador Claudio e C. S.a.s. Dual band transponder system
US6577266B1 (en) * 2001-10-15 2003-06-10 Sandia Corporation Transponder data processing methods and systems
WO2005106526A1 (en) * 2004-04-27 2005-11-10 Daimlerchrysler Ag Method for initiating safety measures for a motor vehicle

Also Published As

Publication number Publication date
GB9211632D0 (en) 1992-07-15

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)