EP0789419B1 - Dispositif et procédé de transmission d'informations pour système à guide d'ondes rayonnant - Google Patents

Dispositif et procédé de transmission d'informations pour système à guide d'ondes rayonnant Download PDF

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Publication number
EP0789419B1
EP0789419B1 EP97400236A EP97400236A EP0789419B1 EP 0789419 B1 EP0789419 B1 EP 0789419B1 EP 97400236 A EP97400236 A EP 97400236A EP 97400236 A EP97400236 A EP 97400236A EP 0789419 B1 EP0789419 B1 EP 0789419B1
Authority
EP
European Patent Office
Prior art keywords
mobile
resonant cavity
energy
resonant
radiating
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 - Lifetime
Application number
EP97400236A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0789419A1 (fr
Inventor
Marc GEC Alsthom Transport SA Heddebaut
Jean GEC Alsthom Transport SA Rioult
Marion Inrets Berbineau
Denis Duhot
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.)
Alstom Transport SA
Original Assignee
GEC Alsthom Transport SA
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 GEC Alsthom Transport SA filed Critical GEC Alsthom Transport SA
Priority to SI9730299T priority Critical patent/SI0789419T1/xx
Publication of EP0789419A1 publication Critical patent/EP0789419A1/fr
Application granted granted Critical
Publication of EP0789419B1 publication Critical patent/EP0789419B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • 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
    • B61L25/021—Measuring and recording of train speed
    • 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
    • B61L25/023—Determination of driving direction of vehicle or train
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/16—Continuous control along the route
    • B61L3/22—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation
    • B61L3/227—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation using electromagnetic radiation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
    • H01Q1/3233—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0006—Particular feeding systems
    • H01Q21/0037—Particular feeding systems linear waveguide fed arrays
    • H01Q21/0043—Slotted waveguides

Definitions

  • the present invention relates to devices and methods of transmitting information, in general, and relates, more particularly, to a device and a information transmission method for guide system of radiating waves.
  • This system is likely to locate mobiles traveling along the radiating waveguide.
  • This location is based on the use of specific location slots.
  • These location slots are complementary to the slots regularly arranged continuously along the guide of radiating waves and are perpendicular to these slits regular.
  • Information relating to the location of mobiles is only accessible on the fly, i.e. when the mobile moves along the radiating waveguide.
  • the mobile is in the area of garage workshop or in the parking area or at the entrance to station.
  • Document EP 529 581 discloses a system of localization by microwave electromagnetic waves using a waveguide to know the position of a mobile by injection into the waveguide of one or several frequencies each including a message of particular location and by filtering out level of each tag the only message intended for the tag concerned.
  • the advantage of such a system is that it allows localization of a mobile whether or not it is stopped on a tag, but has the disadvantage of not allow the transmission of locally generated information.
  • An object of the invention is therefore a device for transmission of information for waveguide system radiant.
  • Another object of the invention is a method of transmission of information for waveguide system radiant.
  • the information transmission device for radiating waveguide system of the invention satisfies also to any of the characteristics according to attached subclaims.
  • the system information transmission method with a radiating waveguide of the invention also satisfies to any of the features according to the subclaims attached.
  • the information transmission device for radiating waveguide system of the invention can be example title entirely created using a section short radiating waveguide right, dimension close to the wavelength in the air of signals propagated in the radiating waveguide.
  • An advantage of the device and the method of transmission of information for waveguide system radiant of the invention is to take only one energy very reduced, about 0.02 dB, on the waveguide radiant and therefore to be able to have transmission as frequently as the exploitation of movable along the radiating waveguide requires it.
  • Another advantage of the device and the method of transmission of information for waveguide system radiant of the invention is to achieve a simple set, autonomous and provided with a minimum of components and connections.
  • Another advantage of the device and the method of transmission of information for waveguide system radiant of the invention is not to require a source of continuous energy.
  • Another advantage of the device and the method of transmission of information for waveguide system beaming from the invention is to be likely to provide a precise location pulse signal.
  • Another advantage of the device and the method of transmission of information for waveguide system radiating from the invention is to be likely to indicate the direction of movement of the mobile without ambiguity.
  • the IAGO system uses the large bandwidth of a microwave waveguide operating in TE 01 mode to authorize in particular the transmission of high-speed information between ground and mobiles.
  • This large bandwidth also allows transmit in the waveguide radiating a wave additional unmodulated carrier.
  • Such an unmodulated carrier wave is emitted at low level and is propagated all along the waveguide radiant.
  • This unmodulated carrier wave undergoes little attenuation and is amplified by the same repeaters online than those exploited to regenerate others signals transmitted in the radiating waveguide.
  • the unmodulated carrier wave is therefore present on the entire length of the essentially radiating waveguide inside the guide.
  • This unmodulated carrier wave is not discernible from the mobile and also does not carry the origin identifiable information or signature.
  • the device and the information transmission method for guide system of radiating waves are such that they consist in taking along the waveguide radiant and in strategic places to the exploitation of mobiles part of the energy is indistinguishable in the waveguide in the overall energy balance.
  • the energy withdrawn is radiated to the mobile.
  • Figure 1 is a general view of the device transmission of information for waveguide system radiating according to the preferred embodiment of the invention.
  • the mobile (not shown) is a railway vehicle.
  • the mobiles can be trolleys or any other means mobile.
  • a resonant cavity 1 is arranged on one side of the radiating waveguide 2.
  • the radiating waveguide 2 and the resonant cavity 1 each have, on their facing sides, a directional coupler, respectively 3 and 4.
  • the directional couplers are made, for example, two large circular openings per compared to the period of the unmodulated carrier wave.
  • Figure 2 shows the radiating waveguide of the Figure 1 transmission device and its coupler directive.
  • FIG. 3A represents the resonant cavity of the Figure 1 transmission device and its coupler directive.
  • the radiating waveguide operates in TE 01 mode. There is therefore practically no electric field on the lateral sides of this radiating waveguide.
  • Such an embodiment makes it possible to obtain repeated coupling coefficients on the order of -40 dB compared to the power level transmitted in the guide of radiating waves.
  • the length of the resonant cavity 1 is as small as possible so that the interior volume of this resonant cavity resonates in the cavity according to a fundamental mode TE 011 .
  • any directivity is eliminated and the coupling coefficient remains identical whether the radiating waveguide is supplied upstream or downstream.
  • the TE 011 fundamental mode resonant cavity is short-circuited at its ends and has a resonant half-wave slot 5.
  • the resonant half-wave slot is made on the large outer face of the resonant cavity facing the rail vehicle.
  • the resonant half-wave slot is oriented perpendicular to the slots 6 of the radiating waveguide.
  • This half-wave resonant slot radiates the coupled energy from the radiating waveguide to the resonant cavity in TE 011 mode.
  • the radiation from the resonant half-wave slit takes place in linear polarization perpendicular to regular slots of the radiating waveguide.
  • This radiation thus authorizes a decoupling of the order by 15 dB compared to the signals transmitted by the slots of transmission and speed measurement of the waveguide.
  • the carrier wave propagating in the waveguide which is a pure sinusoidal signal, is locally coupled to the rail vehicle by means of the resonant cavity and its resonant half-wave slot.
  • This sinusoidal signal is locally modulated.
  • a modulation device by example a Schottky type diode, is placed between the edges of the half-wave resonant slit at a point of high impedance at the desired frequency.
  • FIG. 3B represents the resonant cavity and its modulation device.
  • This diode is polarized by means of a current applied to its terminals and is likely to short-circuit the resonant half-wave slit to the rhythm of the polarization, the slit presenting at this point and for the working frequency considered a point of high impedance.
  • the coupling coefficient existing between the guide of radiating waves and the resonant cavity being of the order of -40 dB, the mismatch linked to this short circuit to the rhythm modulation is not detectable in the waveguide radiant.
  • the modulated signal is only fed back to -80 dB below reference level towards the radiating waveguide, ie - 40 dB in the waveguide direction radiating towards cavity resonant and -40 dB in the direction of resonant cavity towards guide of radiating waves.
  • the modulated signal produced in the resonant cavity is therefore neither transmitted along the radiating waveguide, nor passed upstream or downstream of the resonant cavity.
  • a device 8 generates the signal representing the information to be transmitted to the rail vehicle.
  • This signal representing the information to be transmitted is for example a signal composed of a binary sequence.
  • the possible bit rate is important and is not limited only by switching times of the Schottky diode and the frequency of the pure sinusoidal signal.
  • the device 8 generating the signal representing the information to be transmitted may include a picocontroller type device memorizing on a memory of the EEPROM type a frame and generating this frame so repetitive to the Schottky diode from then that energy is supplied to it.
  • the energy present in the resonant cavity being very low, around 40 dB below the power level present in the radiating waveguide, it is possible to judiciously arrange the device 8 generating the signal representing the information to be transmitted inside the resonant cavity without significantly disturbing either the functioning of this electronic circuit, nor the resonance in fundamental mode of the resonant cavity.
  • FIG. 3C represents the resonant cavity and its device generating the signal representing the information to transmit.
  • the power of this device 8 generating the signal representing the information to be transmitted can advantageously be supplied by remote power to by means of a low frequency signal operating at a few hundreds of kilo hertz or even a few mega hertz.
  • Figure 4 is a general view of the device transmission of information and its remote power device.
  • This low frequency signal is magnetically coupled to the resonant cavity by means of two resonant loops 9, 10A or 10B.
  • a first resonant loop 9 of the series type is associated with energy emission and a second resonant loop 10A, 10B of the parallel type is associated with energy reception, emission and reception of energy being carried out at the remote power frequency.
  • the energy emission loop 9 is integral with the rail vehicle (not shown) and generates permanence a little energy, for example worth less than a watt, for at least one loop energy receiver 10A, 10B integral with the cavity resonant 1.
  • the energy reception loop 10A, 10B remotely powers the device 8 generating the signal representing information to be transmitted when the vehicle passes rail.
  • the signal representing the information to be transmitted to the rail vehicle will only be generated when the device 8 generating the signal representing the information to transmit will be powered by remote power.
  • a first energy reception loop 10A is arranged upstream of the resonant cavity 1 and supplied, when approaching or when moving away from the railway vehicle, a continuous supply voltage V 1
  • a second energy reception loop 10B is arranged downstream of the resonant cavity 1 and supplied when moving away from or when approaching the railway vehicle a continuous supply voltage V 2 .
  • the device 8 generating the signal representing the information to be transmitted can thus be remotely supplied continuously during the passage of the railway vehicle from upstream downstream of the resonant cavity or vice versa.
  • the transition from DC voltage V 1 to DC voltage V 2 or vice versa can be used to provide a signal for the railway vehicle to pass over the resonant cavity.
  • the transition from DC voltage V 1 to DC voltage V 2 can also be used to provide a signal indicating the direction of passage upstream to downstream of the rail vehicle.
  • the transition from DC voltage V 2 to DC voltage V 1 can also be used to provide a signal indicating the direction of passage downstream to upstream of the rail vehicle.
  • FIG. 5 represents an embodiment of the modulated carrier wave receiving device arranged on the mobile.
  • This reception device 11 consists of a antenna 12 connected to an amplification chain 13, filtering at the frequency of the pure sinusoidal signal and amplitude detection and has the function of reproducing the information transmitted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Computer Security & Cryptography (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Health & Medical Sciences (AREA)
  • Near-Field Transmission Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Transmitters (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Radio Relay Systems (AREA)
  • Traffic Control Systems (AREA)
  • Waveguide Aerials (AREA)
  • Discharge Of Articles From Conveyors (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
  • Optical Communication System (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
EP97400236A 1996-02-09 1997-02-03 Dispositif et procédé de transmission d'informations pour système à guide d'ondes rayonnant Expired - Lifetime EP0789419B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9730299T SI0789419T1 (en) 1996-02-09 1997-02-03 Device and method for transmission of information for systems with radiating waveguides

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9601620A FR2744865B1 (fr) 1996-02-09 1996-02-09 Dispositif et procede de transmission d'informations pour systeme a guide d'ondes rayonnant
FR9601620 1996-02-09

Publications (2)

Publication Number Publication Date
EP0789419A1 EP0789419A1 (fr) 1997-08-13
EP0789419B1 true EP0789419B1 (fr) 2001-12-12

Family

ID=9489034

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97400236A Expired - Lifetime EP0789419B1 (fr) 1996-02-09 1997-02-03 Dispositif et procédé de transmission d'informations pour système à guide d'ondes rayonnant

Country Status (23)

Country Link
US (1) US6034646A (es)
EP (1) EP0789419B1 (es)
JP (1) JP3839118B2 (es)
KR (1) KR100451066B1 (es)
CN (1) CN1096754C (es)
AT (1) ATE210898T1 (es)
AU (1) AU709313B2 (es)
BG (1) BG62868B1 (es)
BR (1) BR9700897A (es)
CA (1) CA2197110C (es)
CZ (1) CZ290348B6 (es)
DE (1) DE69708945T2 (es)
DK (1) DK0789419T3 (es)
ES (1) ES2167688T3 (es)
FR (1) FR2744865B1 (es)
HU (1) HU219939B (es)
IL (1) IL120157A (es)
PL (1) PL181409B1 (es)
PT (1) PT789419E (es)
RU (1) RU2168273C2 (es)
SI (1) SI0789419T1 (es)
SK (1) SK284030B6 (es)
ZA (1) ZA97974B (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3617374B2 (ja) * 1998-07-07 2005-02-02 株式会社村田製作所 方向性結合器、アンテナ装置および送受信装置
FR2873341B1 (fr) * 2004-07-21 2014-08-15 Siemens Transp Systems Dispositif de couplage electromagnetique, vehicule incorporant ledit dispositif
FR2916907B1 (fr) * 2007-05-31 2010-09-10 Alstom Transport Sa Dispositif de communication pour vehicule ferroviaire
FR3009818B1 (fr) * 2013-08-20 2015-09-18 Alstom Transport Sa Dispositif de securite ferroviaire et procede de detection associe
US9606224B2 (en) * 2014-01-14 2017-03-28 Alstom Transport Technologies Systems and methods for vehicle position detection
TWI637607B (zh) * 2017-06-23 2018-10-01 智易科技股份有限公司 無線通訊模組
WO2021210003A1 (en) * 2020-04-16 2021-10-21 Motx Ltd. Optical communication link for moving elements
CN113063994B (zh) * 2021-03-24 2022-06-14 中国人民解放军国防科技大学 有源超表面强辐照场性能测试装置及系统
KR102507952B1 (ko) * 2022-02-11 2023-03-09 주식회사 에이치엘클레무브 안테나 모듈

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3546633A (en) * 1966-01-04 1970-12-08 Gen Electric Electrically tunable microwave band-stop switch
GB1240588A (en) * 1968-07-30 1971-07-28 Japan National Railway Improvements in or relating to communication control systems
JPS5521489B2 (es) * 1972-10-05 1980-06-10
EP0274055B1 (fr) * 1986-12-12 1993-03-10 Gec Alsthom Sa Dispositif de transmission d'informations et/ou d'instructions à large bande passante entre un élément mobile et un poste de contrôle
DE3781534T2 (de) * 1986-12-15 1993-01-07 Sumitomo Electric Industries Strassenrandbakensystem.
FR2623460B1 (fr) * 1987-11-20 1990-11-16 Alsthom Balise d'identification lors du passage d'un mobile en un point donne
US5136225A (en) * 1989-04-14 1992-08-04 Gec Alsthom Sa Device for guiding vehicles on a virtual track
FR2680876B1 (fr) * 1991-08-30 1993-11-19 Gec Alsthom Sa Systeme de localisation par ondes electromagnetiques hyperfrequences.
FR2730817B1 (fr) * 1995-02-21 1997-04-04 Gec Alsthom Transport Sa Dispositif de localisation d'un vehicule se deplacant le long de moyens de propagation d'ondes electromagnetiques
FR2736225B1 (fr) * 1995-06-27 1997-08-01 Gec Alsthom Transport Sa Dispositif permettant de s'affranchir des problemes de diaphonie lors de la localisation d'un vehicule se deplacant le long de moyens de propagation d'ondes electromagnetiques

Also Published As

Publication number Publication date
CN1096754C (zh) 2002-12-18
EP0789419A1 (fr) 1997-08-13
ATE210898T1 (de) 2001-12-15
CZ38097A3 (en) 1997-08-13
PL181409B1 (pl) 2001-07-31
HUP9700343A3 (en) 2000-05-29
FR2744865B1 (fr) 1998-03-20
PT789419E (pt) 2002-05-31
BG62868B1 (bg) 2000-09-29
AU709313B2 (en) 1999-08-26
HU9700343D0 (en) 1997-03-28
DK0789419T3 (da) 2002-04-08
DE69708945T2 (de) 2002-08-01
IL120157A (en) 1999-10-28
FR2744865A1 (fr) 1997-08-14
CN1164779A (zh) 1997-11-12
BG101191A (en) 1997-09-30
CA2197110A1 (fr) 1997-08-10
SI0789419T1 (en) 2002-06-30
JPH09265597A (ja) 1997-10-07
BR9700897A (pt) 1999-01-12
CA2197110C (fr) 2003-08-05
KR100451066B1 (ko) 2005-01-13
CZ290348B6 (cs) 2002-07-17
ZA97974B (en) 1998-04-16
PL318367A1 (en) 1997-08-18
HU219939B (hu) 2001-09-28
AU1250097A (en) 1997-08-14
RU2168273C2 (ru) 2001-05-27
IL120157A0 (en) 1997-06-10
ES2167688T3 (es) 2002-05-16
SK18397A3 (en) 1999-02-11
KR970062739A (ko) 1997-09-12
DE69708945D1 (de) 2002-01-24
HUP9700343A2 (en) 1997-12-29
JP3839118B2 (ja) 2006-11-01
SK284030B6 (sk) 2004-08-03
US6034646A (en) 2000-03-07

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