EP1486931A2 - Übertragung von Warnmeldungen zwischen Fahrzeugen auf einer Strasse und einem Verkehrsinformationsnetz - Google Patents

Übertragung von Warnmeldungen zwischen Fahrzeugen auf einer Strasse und einem Verkehrsinformationsnetz Download PDF

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Publication number
EP1486931A2
EP1486931A2 EP04291488A EP04291488A EP1486931A2 EP 1486931 A2 EP1486931 A2 EP 1486931A2 EP 04291488 A EP04291488 A EP 04291488A EP 04291488 A EP04291488 A EP 04291488A EP 1486931 A2 EP1486931 A2 EP 1486931A2
Authority
EP
European Patent Office
Prior art keywords
broadcasting
road network
network according
messages
target messages
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.)
Granted
Application number
EP04291488A
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English (en)
French (fr)
Other versions
EP1486931A3 (de
EP1486931B1 (de
Inventor
Yves Robin-Jouan
Jean-Marc Blosseville
Guy Le Marc
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.)
Navecom
Stic
Laboratoire Central des Ponts et Chaussees
Institut National de Recherche sur les Transports et leur Securite INRETS
Original Assignee
Livic
Navecom
Stic
Laboratoire Central des Ponts et Chaussees
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.)
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Publication date
Application filed by Livic, Navecom, Stic, Laboratoire Central des Ponts et Chaussees filed Critical Livic
Publication of EP1486931A2 publication Critical patent/EP1486931A2/de
Publication of EP1486931A3 publication Critical patent/EP1486931A3/de
Application granted granted Critical
Publication of EP1486931B1 publication Critical patent/EP1486931B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G08G1/0962—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
    • G08G1/096775—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 central station
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • 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
    • G08G1/096708—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control
    • G08G1/096716—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control where the received information does not generate an automatic action on the vehicle control
    • 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
    • G08G1/096733—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place
    • G08G1/096758—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place where no selection takes place on the transmitted or the received information

Definitions

  • the present invention relates to the general field of dissemination of alert and safety messages on an axis by road, to and / or from vehicles traveling on said axis.
  • patent US4764978 describes a system for transmitting information transmitted by emergency vehicles, for vehicles traveling on the road network. These messages are broadcast on AM and FM frequencies so as to be received on the car radio cars.
  • French patent FR2718404 describes a method and a device for transmitting from one road vehicle to another and by radio means, information regarding road safety. This process allows a vehicle on the one hand to send, thanks to a transmitter low power radio information to other vehicles within a few hectometers, and on the other hand to automatically receive the information from other vehicles, and activate a alert system allowing the driver to interpret information easily and to know the nature of danger he will encounter (sound or optical system).
  • the device thus prevents drivers arriving in a potentially dangerous area, and therefore encourage people to slow down to avoid chain accidents due to to surprise and speed.
  • Another US patent US4403208 describes a system alarm transmission or alert signals between two vehicles by transmitting a radio frequency signal to limited range.
  • European patent EP0817151 describes a process for individually alert traffic incidents to using an on-board device and a device stationary using broadcast type broadcast of incident messages with local selection based on primary incident messages (M1).
  • M1 primary incident message
  • M2 secondary incident messages
  • CA coordinates
  • Each receiving device that receives a message secondary incident derives from coordinates (CA) of the incident received and proper contact details (C1, C2, C3) as well as from their determined modifications a decision on reconciliation or non-reconciliation of the vehicle of this incident, and in the event of reconciliation of the incident, delivers a message (A).
  • French patent FR2629404 proposes an installation automobile accident warning system which includes a medium to create an alarm signal, medium which can be achieved by a shock sensor or by a manual switch, a means of transmitting alarms by electromagnetic or ultrasonic waves, a means of reception of alarm signals and a means of warning.
  • the shock sensor produces a signal which triggers the emission of an alarm for example, by means of a antenna positioned on the car. All others automobiles, within a maximum distance, fitted from a compatible warning facility receive these alarm signals activating a means of warning in these automobiles.
  • French patent 9614682 presents an embodiment effective emergency communication between vehicles, using a single frequency and sharing time recurring cycles, fixing the sampling period.
  • Each cycle is divided into slices, the number of slices determining the instantaneous capacity of the system (without collision).
  • An automatic relay function but selective is proposed to extend the range in multi-hops, from cycle to cycle. Overall synchronization is ensured on a statistical mode, which makes it possible to get rid of the topology and any reference clock.
  • French patent FR2831760 describes a device for similar time sharing, completely backed by a infrastructure of fixed access points, which control and orchestrate exchanges between vehicles and infrastructure. Relay functions are provided to bypass the effects of masks between vehicles.
  • the system integrates the protocols of the Internet world, both for security services (automatic driving or assistance) that for logistics or comfort services.
  • the object of the present invention is to remedy these disadvantages by proposing a reliable solution, allowing broadcast an alert effectively even when a number reduced vehicle only has equipment specific, and for which the costs of equipment or retrofitting infrastructure are moderate.
  • the present invention relates to a network of wireless communication deployed along a traffic and transmitting devices and receivers located on the trackside and on board the vehicles for data transfer corresponding. Transfer is routed automatically according to several possible links, in cascade or in parallel, vehicle-to-vehicle, vehicle-to-vehicle infrastructure and vehicle infrastructure.
  • the invention allows the support of a minimum security functions, using only vehicle-to-vehicle communications.
  • the transition under and outside infrastructure is carried out without discontinuity.
  • FM Frequency Modulation
  • VHF 107.7 MHz or others in Europe
  • DAB Frequency Modulation
  • the format used is the very classic format analog RCA for Hi-Fi stereo (L + R and L-R, with sub pilot carrier), to which are added one or more subcarriers for additional services such as RDS-TMC broadcast messaging (at 57 kHz).
  • DAB networks Digital Audio Broadcast
  • Digital Audio Broadcast for highways are at the stage of project and their future depends more generally on the future of DAB technology itself. It is a system of purely digital broadcasting, based on a format of OFDM (Orthogonal Frequency) multi-carrier modulation Multiplex Division).
  • OFDM Orthogonal Frequency
  • DSRC type ETSI: Digital Short range communications, in radio band 5.8 GHz
  • BOCOM magnetic loops
  • Direct vehicle-vehicle communication systems are currently emerging for transmission rapid alert upstream of the vehicle flow to direct destination of following vehicles.
  • the content is consisting of short messages in real time, demanding low latency and transit times, and good availability.
  • Such systems focused on local security, are want independent of any fixed infrastructure but the global security encourages the principle of routing to a possible infrastructure point for actions concerted with treatment centers.
  • One of the interests of MTNET relaying is to facilitate such routing.
  • the ARCOS program introduces front-end architecture communications, which allows transparent cooperation between vehicle-vehicle and vehicle-infrastructure vectors.
  • Future SARI program plans to generalize solutions vehicle-vehicle type MTNET or IVHW with fixed accesses to infrastructure.
  • Candidate technologies are still experimentation stage.
  • the working groups international (ANSI, ETSI, ISO) on CALM (Continuous Air interface for Long and Medium distance) partly resume the principles of these programs and solutions for a application at 5.9 GHz.
  • CBTC Control-Command train safety on the ground
  • Some are derived from WLAN, with some doubts about performance and cohabitation possible with office and consumer applications.
  • CALM derivative by adaptation the the original intended for the road, is also considered.
  • Others are proprietary solutions coupled more or less closely with applications (autopilot and regulation).
  • SOFRANET trade name
  • SOFRANET offers an architecture that exploits the best the properties of radio propagation, between trains and a series of cooperative base stations.
  • a triple transmission diversity brings robustness to a level never reached.
  • Isofrequency resource is shared in high speed peak TDMA, driven by the infrastructure, with mobility management.
  • the system basically targets vehicle (train) to infrastructure communications, but reserve is provided for relaying between vehicles (trains) in difficult environments (metro in tunnel and obstacles of type "plug" presented from one train to another, between stations spaced up to 2000 m).
  • the whole is redundant (1 + 1) at the rate of one channel per direction of propagation; he supports IP v6 and its suite, and is administered under SNMP on a standard platform.
  • the object of the invention is in particular to alleviate the described disadvantages of state-of-the-art solutions, for the exchange of "target messages", defined as corresponding to security services, priority, but also to additional logistics, comfort or commercial exploitation.
  • a dual vehicle-vehicle regime and vehicle-infrastructure-vehicle is taken into account for exchange of target security messages.
  • the invention relates according to its meaning most general a target message delivery system on a road network equipped with transmission terminals radiofrequency intended for example for the broadcasting of a dedicated FM program, characterized in that said terminals include an additional receiver capable of receiving alert messages from additional transmitters equipping at least some vehicles.
  • each of said terminals includes means for the transfer of messages received by the receiver additional to a message distribution server alert.
  • the system includes a server broadcast sending messages on the network of broadcasting.
  • the system comprises a electronic circuit for adapting a receiver vehicle on-board broadcasting for transmission a digital alert signal.
  • said electronic circuit is connected to a common antenna with the receiving antenna the car radio.
  • the system comprises transmitters installed in said terminals for the localized emission of alert messages.
  • the system is characterized in that the dissemination of alert messages is performed with an isofrequency resource, generalized to the scale of a road network.
  • the transmission of alert messages can be performed on a broadcasting channel dedicated to road traffic regulation, fully compatible with the original service.
  • TDMA Time Division Multiple Access: Multiple Access to Time Distribution
  • TDMA Time Division Multiple Access: Multiple Access to Time Distribution
  • synchronous or asynchronous, respecting successive time slots of fixed size but configurable, in which unmarked frames of data can be transmitted by different vehicles or infrastructure base stations.
  • Specific tranches are allocated to the infrastructure, with an identifiable signature, and according to a regular time pattern, facilitating the synchronization of exchanges, when said infrastructure is available.
  • the system plans to systematically reserve a slice after each useful slice emitted by a mobile, at for immediate relaying by the current base station (i) any infrastructure, in electromagnetic range mobile, without the intervention of host centers.
  • it has the capacity to authorize or not, according to the topology, the upstream (i-1) and downstream (i + 1) base stations to relay a second time such an alert in the original tranche
  • the system manages the priority of access to other services between vehicles or between vehicle and servers connected to infrastructure.
  • the practical realization reuses for the part part of the modules of a modern car radio, which are added a transmitter module, a duplexer -to switching or other-, a specific modem and a module digital signal and interface processing.
  • the realization takes advantage of the reuse of highway edge FM broadcasting transmitters, in adding to each a receiver, a modem and a module symmetrical digital processing and interface to those of the on-board part, plus a possible connection to transport networks (Intranet and Internet services operated or no).
  • the system offers the reuse of emergency call beacons, suitably renovated by the contribution of transmitter, receiver, modem, processing and digital interfaces of the same type as those already used.
  • the system is remarkable in that the isofrequency resource can identify itself to a band II FM broadcasting channel VHF, 450 kHz wide, or an equivalent band channel Low UHF (around 400 or 800 MHz), or even a set of VHF narrowband contiguous channels (40-200 MHz).
  • the system is remarkable in that the 450 kHz channel can already be occupied by a broadcasting program dedicated to "FM Highway" type traffic, at 107.7 MHz.
  • the format used ensures compatibility reciprocal with low speed for new services (4.5 kb / s, indicative).
  • the system is remarkable in that this flow can be increased to at least 64 kb / s in case of release or specialization of the 450 kHz mentioned.
  • This solution allows the rise in power of secondary services based on infrastructure.
  • the system is remarkable in that the alarm service is provided by frames of a few tens of bytes (typically 8 to 32) deposited in slices of a few dozen milliseconds (typically 10 to 100) for a peak rate of a few kb / s (typically 2.4 to 9.6), with a capacity of a few dozen simultaneous alarms (typically 20); all these values remain configurable in a larger measured.
  • the radio frequency characteristics of equipment can be adjusted to be compatible with recurrence geographic of FM broadcasting transmitters (5 to 20 km) or that of emergency call beacons (2 to 3 km).
  • a second objective of the invention is to allow spontaneous transitions from the cooperative regime with infrastructure to the autonomous regime and vice versa, without interruption of service or reconfiguration.
  • a third objective of the invention is to optimize service reach and real-time performance alert and other security services through a relaying by the infrastructure, when available. This relaying is accompanied by a report to the centers business intelligence, whose system will route feedback possible in the medium term (wider dissemination of Alert scale, information, instructions). Excluding infrastructure available, this goal boils down to ensuring the same services in a simplified manner, in autonomous mode, without use relaying between vehicles.
  • a fourth objective of the invention is to provide complementary services with priority grading, in support on infrastructure, when available.
  • the activity such services will leverage the resource share not mobilized by the security services, which will remain preemptible by them at any time.
  • a fifth objective of the invention is the ability to cooperation with a first type of infrastructure existing, namely dedicated FM broadcasting networks, with a minimum of adaptation of these. This goal will be ensured by directly reusing the allocated resource for broadcasting, in simple overlay, so that directly re-use existing transmitters.
  • a sixth objective of the invention is to allow service and performance extensions from the first type of infrastructure, in full broadcasting channel (replacement of the existing chain or use of a channel adjacent), or from a second type infrastructure, lighter, introduced at beacons emergency call when renovating this equipment.
  • a seventh objective of the invention is the reuse and improvement of a sector very economical on-board equipment (car radio), as well as reuse of antennas and wiring installed in original equipment in vehicles.
  • the slices are joined together by pairs: there are pairs of slices for mobiles and pairs of slices for fixed, the latter arranged in a recurring manner, so as to punctuate the cycles.
  • a mobile can send a security message (alert for example) as soon as the channel is free, occupying a slice.
  • the second installment of the pair is left free for possible relaying by the current terminal (i) of infrastructure, if the service justifies it.
  • a second relaying is optional, further upstream and / or downstream (terminals i-1, i + 1) by reusing the first tranche, by capture effect.
  • the first tranche of a pair assigned to fixed lines contains information about easement, especially for overall synchronization and multiplexing of successive terminals).
  • the second tranche is a slice of resource reservation request by mobile for secondary services. Flags there are deposited by mobiles with an access period drawn from the chance by them along a discreet grid.
  • the equipment infrastructure performs the appropriate priority processing, by giving priority to authorized safety messages freely at the start of the cycle, and leaving a margin for less equal to a pair of slices, before letting go messages from secondary services (at the end of the cycle). It is the current terminal i which is addressed to a mobile (meaning descending from the data) in the first tranche, while the mobile responds in the second tranche of the pair (upward direction of data).
  • the system grants mobile phones pairs of slices for secondary services according to the order in which they deposited their flags in the section of terminal i reserved for this purpose in the current cycle. Some resilience can be insured (reservation maintained for a few cycles), if the traffic conditions allow it. Any collision detected on the first part of the cycle and on the margin between service security and secondary services is resolved on cycle next, at the expense of secondary services.
  • the system has a certain freedom of configuration of its timing according to the characteristics of the deployment (for example distance between terminals), required security performance and expected traffic as well to a lesser extent the desired profile for secondary services.
  • guard intervals between slices and between pairs of slices to account for limitations physical such as propagation time and reversal of transmitters and receivers (operation in work-study simplex).
  • the invention is not limited to a purely material implantation but that it can also be implemented as a sequence of instructions of a computer program or any form mixing a part hardware and a software part (notably in the form of protocol) on the ground and on board, supported by the blocks functional called TS ("Signal Processing"). Blocks similar functions are to be expected in the centers servers.
  • the general principle of the invention takes advantage of a network topology of the "band” or “ribbon” type, adapted targeted road applications.
  • the invention is applicable not only to road safety but to safety functions of the same type for other means of transport, not guided or guided: rail, metro, waterways (rivers, canals, channels and straits such as the English Channel), or even aircraft in their navigation lanes.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Traffic Control Systems (AREA)
  • Circuits Of Receivers In General (AREA)
EP04291488A 2003-06-12 2004-06-14 Übertragung von Warnmeldungen zwischen Fahrzeugen auf einer Strasse und einem Verkehrsinformationsnetz Expired - Lifetime EP1486931B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0307093A FR2856178B1 (fr) 2003-06-12 2003-06-12 Communications d'alerte generalisees entre des vehicules circulant sur route et un eventuel reseau d'information routier
FR0307093 2003-06-12

Publications (3)

Publication Number Publication Date
EP1486931A2 true EP1486931A2 (de) 2004-12-15
EP1486931A3 EP1486931A3 (de) 2006-06-07
EP1486931B1 EP1486931B1 (de) 2008-04-16

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EP04291488A Expired - Lifetime EP1486931B1 (de) 2003-06-12 2004-06-14 Übertragung von Warnmeldungen zwischen Fahrzeugen auf einer Strasse und einem Verkehrsinformationsnetz

Country Status (4)

Country Link
EP (1) EP1486931B1 (de)
AT (1) ATE392689T1 (de)
DE (1) DE602004013075T2 (de)
FR (1) FR2856178B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114745699A (zh) * 2022-06-13 2022-07-12 成都市以太节点科技有限公司 基于神经网络的车车通信模式选择方法、系统及存储介质

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007054221B4 (de) 2007-11-12 2013-12-05 Rail.One Gmbh Oberbau für eine Schienenfahrbahn
DE102010064086A1 (de) * 2010-12-23 2012-06-28 Continental Automotive Gmbh Fahrzeugantennensystem für V2X Kommunikation

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FR2692741B1 (fr) * 1992-06-17 1994-09-02 Autoroutes Cie Financ Indle Perfectionnement aux réseaux isofréquence.
JP3593844B2 (ja) * 1997-04-24 2004-11-24 ソニー株式会社 情報受信方法、ナビゲーション装置及び自動車
JP3547300B2 (ja) * 1997-12-04 2004-07-28 株式会社日立製作所 情報交換システム
JP2990267B1 (ja) * 1998-08-27 1999-12-13 建設省土木研究所長 道路情報通信システム
KR100366716B1 (ko) * 1998-10-13 2003-01-06 가부시키가이샤 자나비 인포메틱스 방송형 정보제공 시스템 및 주행환경 정보수집 장치
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114745699A (zh) * 2022-06-13 2022-07-12 成都市以太节点科技有限公司 基于神经网络的车车通信模式选择方法、系统及存储介质
CN114745699B (zh) * 2022-06-13 2022-09-02 成都市以太节点科技有限公司 基于神经网络的车车通信模式选择方法、系统及存储介质

Also Published As

Publication number Publication date
DE602004013075T2 (de) 2009-06-25
EP1486931A3 (de) 2006-06-07
EP1486931B1 (de) 2008-04-16
DE602004013075D1 (de) 2008-05-29
ATE392689T1 (de) 2008-05-15
FR2856178B1 (fr) 2005-09-16
FR2856178A1 (fr) 2004-12-17

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