EP0715285B1 - Méthode pour réduire la quantité de données qui doit être transmise par véhicules d'une flotte de véhicules - Google Patents

Méthode pour réduire la quantité de données qui doit être transmise par véhicules d'une flotte de véhicules Download PDF

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Publication number
EP0715285B1
EP0715285B1 EP95250276A EP95250276A EP0715285B1 EP 0715285 B1 EP0715285 B1 EP 0715285B1 EP 95250276 A EP95250276 A EP 95250276A EP 95250276 A EP95250276 A EP 95250276A EP 0715285 B1 EP0715285 B1 EP 0715285B1
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EP
European Patent Office
Prior art keywords
vehicles
data
vehicle
transmitted
preset values
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
EP95250276A
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German (de)
English (en)
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EP0715285A1 (fr
Inventor
Christian Dipl.-Ing. Hort
Werner Dr. Schulz
Josef Dipl.-Ing. Heimann
Karlheinz Dipl.-Math. Schlottbom
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Vodafone GmbH
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Mannesmann AG
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Publication date
Application filed by Mannesmann AG filed Critical Mannesmann AG
Publication of EP0715285A1 publication Critical patent/EP0715285A1/fr
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    • 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
    • G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
    • G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
    • G08G1/0141—Measuring and analyzing of parameters relative to traffic conditions for specific applications for traffic information dissemination
    • 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
    • G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
    • G08G1/0108—Measuring and analyzing of parameters relative to traffic conditions based on the source of data
    • G08G1/0112—Measuring and analyzing of parameters relative to traffic conditions based on the source of data from the vehicle, e.g. floating car data [FCD]
    • 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
    • G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
    • G08G1/0125—Traffic data processing
    • G08G1/0133—Traffic data processing for classifying traffic situation

Definitions

  • the invention relates to a method for reducing a vehicle Vehicle fleet, in particular a sample vehicle fleet to be transferred Amount of data from vehicle data, the information about the operating status and / or the surroundings of the vehicles and position data Information about the position of the vehicles in a predetermined Coordinate system included at a certain point in time after detection the resulting vehicle and position data in the vehicle for wireless Transmission of vehicle and position data to a higher-level Traffic calculator.
  • Data records that include the position data of the vehicles in the vehicle fleet and the have corresponding vehicle data from the vehicles via radio to the To receive the receiving point of the higher-level traffic computer have several disadvantages.
  • the higher-level traffic calculator must be based on the predetermined algorithms from the received data sets Calculate information or predictions.
  • the computing load of the parent traffic calculator the larger the processed Amount of data is. That of each sample vehicle in the fleet after a fixed
  • data records transmitted in the schema contain at least partially at the moment superfluous data that unnecessarily increase the computing load, which u. a. especially then the case is when multiple vehicles in the sample vehicle fleet share the same road drive on.
  • the invention provides that the vehicles of the vehicle fleet collectively, or if these form an organizational unit individually, it is predetermined which of the accruing vehicle and position data under which conditions at the higher-level traffic computers are to be transmitted.
  • a data transfer can for example depending on a distance traveled and / or Period of time are triggered.
  • the vehicles can also have a Receive instructions on which geographic positions or which ones When the vehicle and position data are to be recorded Has.
  • the specification is made at least temporarily by wireless transmission from one outside of the vehicles fixed default device.
  • the specifications of the specification device are expediently entered via a Mobile communication device, in particular via radio telephone or radio, to the Vehicles transmitted.
  • a radio telephone has the advantage of two-way communication.
  • the transmission via radio or traffic radio relieves the load on the radio telephone network and only requires a decoder for what is usually already there Receiving device, e.g. a car radio.
  • the radio telephone network load especially at various radio telephone networks with a short range, can also be used for Information gathering used, for example, with regard to traffic density become.
  • a particularly advantageous embodiment of the invention provides that with the The only requirement for vehicles is the spatial or temporal spacing of the Transmission of vehicle and position data is transmitted.
  • the spatial or is the time interval between data transmission to a higher-level traffic computer thereby for all vehicles or for one type of vehicle (truck or car) or for everyone vehicles in a given geographic area constant and is given to the vehicles depending on the situation. It is a Adaptation to the current situation, which can be achieved with relatively simple means current road conditions and / or the spatial distribution of the vehicle fleet.
  • the Invention proposed that a typical in the specification of the vehicles Driving profile (e.g. traffic jam or slow-moving traffic or city traffic) transmitted or is activated from an existing stock in the vehicle, if available The vehicle and position data are immediately transmitted. This creates the opportunity to target specific and immediate To be able to react to traffic situations.
  • a typical in the specification of the vehicles Driving profile e.g. traffic jam or slow-moving traffic or city traffic
  • the vehicle and position data are immediately transmitted. This creates the opportunity to target specific and immediate To be able to react to traffic situations.
  • An additional relief of the radio telephone network is achieved in that The default is to temporarily mute vehicles. This is especially when the radio telephone network is overloaded or when there is very little Traffic is an advantage.
  • the specifications be made individually to the Vehicles of the vehicle fleet are transmitted if the vehicle fleet has a forms an organizational unit, especially for bus companies, freight forwarders and the like.
  • the figure shows schematically the course of several streets and a motorway and the positions of the Vehicles at a certain time.
  • the course of the Motorway section and the street sections are the positions of the vehicles too a certain point in time in the form of black dots, which are in move in the direction of the motorway and road sections.
  • the All of the vehicle and position data of a vehicle fleet, for example, with five hundred vehicles would already be a very large one in one Cellular radio network cell to be transmitted simultaneously and by the parent Traffic calculator mean amount of data to be processed.
  • a vehicle in a sample fleet has sensors installed in the vehicle that continuously changing state variables such as B. the speed that Engine speed, outside temperature, humidity, etc.
  • the Vehicle also has sensors that detect discrete state variables, such as. B. the Position of various switches (wipers, lights, fog lights, Rear window heating, etc.) record.
  • the vehicle is still with devices equipped, the operation of active devices (actuators) such.
  • actuators such.
  • ASR Display traction control system
  • Also owns the vehicle as a positioning system e.g. a GPS receiver (GPS same as Global Positioning System) as a positioning device.
  • GPS receiver GPS same as Global Positioning System
  • the GPS receiver continuously generates position data at predetermined time intervals that the current position (length, width, time) of the vehicle in a predetermined Coordinate system (longitude. Latitude) contains.
  • the sensors and The data generated for the devices for displaying the operation of the actuators form the Vehicle data from which a higher-level traffic computer or a system of decentralized computers in connection with the corresponding Position data (including the associated time data) information or Can calculate predictions about traffic conditions and road conditions.
  • the on-board computer also controls and monitors data transmission to the higher-level traffic computer, which takes place via a radio telephone network.
  • the on-board computer receives the respective specifications of the higher-level Traffic calculator.
  • the requirements for the vehicles essentially contain instructions about which of the resulting vehicle and position data to the higher-level Traffic computers are to be transmitted, and according to which covered Distances and / or time spans.
  • the specification of a maximum time period is for provided the cases where due to a traffic jam and in the event of a vehicle failure the specified distance is only covered after a very long time or not.
  • the vehicles are given which ones geographical positions, in which geographic areas or to which Points in time of the acquisition of the vehicle and position data and / or The data must be transferred to the higher-level traffic computer.
  • Amounts of data can also meet special conditions (e.g.
  • the specifications for the vehicles in this regard be changed so that only the vehicles on this road or in this area their Transmit data to the higher-level traffic computer, so that a dynamic Adaptation of the amount of data transferred to the requirements of Traffic detection is possible and at the same time the radio telephone network is as little as is possibly charged.
  • the vehicle traffic on the road on which the vehicles are F12 - F15 are not peculiar, so the data of these four Vehicles are all within a narrow tolerance band and therefore in the Within the given accuracy are to be regarded as the same, the default look for these four vehicles so that only the position data in relatively large Time intervals are to be transmitted to the higher-level traffic computer.
  • the Vehicles are also subject to limit values, for example for the medium speed and for the medium fluctuation range of the medium Get speed transmitted, if it is exceeded or undershot a Immediate transmission of vehicle and position data to the parent Traffic calculator has to be done.
  • the higher-level traffic computer In the event of an accident on the motorway between vehicles F3 and F4, the higher-level traffic computer request vehicles F1 to F3 by default, to transmit certain vehicle and position data at very short intervals, while the specifications of vehicles F4 to F7 do not initially change.
  • the high data density caused by the accident can affect the parent Traffic computers overload when vehicles F12 to F14, as specified want to transfer their data at this time as well.
  • the higher-level traffic computer can control vehicles F12 temporarily mute to F14 by means of a corresponding specification, i.e. any Prevent data transmission to the higher-level traffic computer.
  • the specifications are sent from the higher-level traffic computer to a Hand over default device and from the default device via radio to the Transfer vehicles.
  • An acknowledgment of receipt of the specifications by the Vehicles are usually not provided, but is a possible variant, for example in areas with poor reception conditions.
  • the default device is fixed outside the vehicles and data technology directly connected to the higher-level traffic computer.
  • the specifications broadcast by the default device are received via the radio receiver available in the vehicles, the integrated Decoder filters out the specifications from the received signals. Of the Radio receiving device will be the default over that installed in the vehicle Transfer the data bus to the on-board computer.
  • the on-board computer constantly checks whether the temporarily stored vehicle and position data at the parent Traffic calculator must be transmitted.
  • the vehicle data is a data set consisting of time and position data assigned.
  • the position data is sent to the GPS by the on-board computer - Receiver provided immediately and in the memory of the on-board computer filed. If the requirements specified in the specifications apply, the On-board computer via radio telephone the data connection to the parent Traffic computer and successively transfers the requested in the specification Records.
  • the data is already processed by the On-board computer. For example, the street can be based on the position data be determined on which the vehicle is currently located.

Claims (11)

  1. Procédé pour réduire une quantité de données de véhicules à transmettre à partir de véhicules d'une flotte de véhicules, en particulier une flotte de véhicules échantillons, qui contiennent des informations sur l'état de fonctionnement et/ou l'environnement des véhicules, et de données de positions, qui contiennent des informations sur la position des véhicules dans un système prédéterminé de coordonnées à chaque fois à un moment déterminé, après détection des données de véhicules et de positions résultantes dans le véhicule pour le transfert sans fil des données de véhicules et de positions à un calculateur de trafic associé,
    caractérisé en ce qu'il est indiqué aux véhicules de la flotte de véhicules quelles données de véhicules et de positions résultantes, dans quelles conditions, doivent être transmises au calculateur de trafic associé, par quoi des informations sont transmises aux véhicules et il est constamment surveillé dans les véhicules, en référence aux informations, si les données doivent être transmises, et en ce que les informations peuvent être influencées sans fil par un dispositif d'information agencé de façon fixe à l'extérieur des véhicules, grâce à quoi les informations peuvent être adaptées de façon dynamique et, ainsi, la quantité de données à transmettre aux véhicules peut être réduite.
  2. Procédé selon la revendication 1,
    caractérisé en ce que les informations sont des indications concernant les positions géographiques et/ou les moments et/ou les étendues parcourues et/ou les événements pour lesquels un transfert de données doit être effectué.
  3. Procédé selon la revendication 1 ou 2,
    caractérisé en ce que les informations sont transmises aux véhicules individuels par l'intermédiaire d'un radiotéléphone.
  4. Procédé selon la revendication 1 ou 2,
    caractérisé en ce que les informations sont transmises aux véhicules par l'intermédiaire d'un appareil de communication mobile, en particulier une radio de trafic.
  5. Procédé selon la revendication 1 ou 2,
    caractérisé en ce que, avec les informations aux véhicules, il est transmis, à chaque fois, l'écart spatial ou temporel pour le transfert régulier des données de véhicules et de positions.
  6. Procédé selon une des revendications 1 à 5,
    caractérisé en ce que, avec les informations aux véhicules, pour des données de véhicules et/ou de positions déterminées, sont transmises des valeurs limites pour lesquelles, lorsque celles-ci sont dépassées ou ne sont pas atteintes, un transfert des données de véhicules et de positions est effectué.
  7. Procédé selon une des revendications 1 à 6,
    caractérisé en ce que, dans les informations aux véhicules, il est transmis un profil de conduite comme modèle de comparaison, lors de la présence duquel un transfert des données de véhicules et de positions est effectué.
  8. Procédé selon une des revendications 1 à 7,
    caractérisé en ce que, dans les informations, il est prévu une commutation silencieuse temporaire de véhicules.
  9. Procédé selon la revendication 8,
    caractérisé en ce que la détection et le traitement des données dans les véhicules et l'échange des données avec le calculateur de trafic associé sont commandés par un ordinateur de bord.
  10. Procédé selon la revendication 9,
    caractérisé en ce que le dispositif d'information est relié, par une technique de transfert de données, au calculateur de trafic associé.
  11. Procédé selon une des revendications 1 à 10,
    caractérisé en ce que les informations sont transmises individuellement aux véhicules de la flotte de véhicules, quand la flotte de véhicules forme une unité organisée.
EP95250276A 1994-11-28 1995-11-16 Méthode pour réduire la quantité de données qui doit être transmise par véhicules d'une flotte de véhicules Expired - Lifetime EP0715285B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4444393 1994-11-28
DE4444393 1994-11-28
DE19513640 1995-04-04
DE19513640A DE19513640C2 (de) 1994-11-28 1995-04-04 Verfahren zur Reduzierung einer aus den Fahrzeugen einer Fahrzeugflotte zu übertragenden Datenmenge

Publications (2)

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EP0715285A1 EP0715285A1 (fr) 1996-06-05
EP0715285B1 true EP0715285B1 (fr) 1999-06-16

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EP95250276A Expired - Lifetime EP0715285B1 (fr) 1994-11-28 1995-11-16 Méthode pour réduire la quantité de données qui doit être transmise par véhicules d'une flotte de véhicules

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EP (1) EP0715285B1 (fr)
AT (1) ATE181440T1 (fr)
DE (2) DE19513640C2 (fr)
ES (1) ES2132521T3 (fr)
GR (1) GR3030454T3 (fr)

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CN101861608B (zh) * 2007-11-15 2013-03-27 大陆-特韦斯贸易合伙股份公司及两合公司 车辆信息的传输
CN102027523B (zh) * 2008-05-15 2016-08-03 佳明瑞士有限责任公司 虚拟交通传感器
RU172827U1 (ru) * 2017-05-03 2017-07-26 Александр Николаевич Дегтярев Устройство формирования и передачи на наземный регистратор видеофайла развития чрезвычайной ситуации на опасном производственном объекте

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DE19513640A1 (de) 1996-06-05
EP0715285A1 (fr) 1996-06-05
GR3030454T3 (en) 1999-09-30
ES2132521T3 (es) 1999-08-16
DE19513640C2 (de) 1997-08-07
DE59506226D1 (de) 1999-07-22
ATE181440T1 (de) 1999-07-15

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