EP2171701A1 - Avertissement de dangers basé sur un serveur - Google Patents

Avertissement de dangers basé sur un serveur

Info

Publication number
EP2171701A1
EP2171701A1 EP08736506A EP08736506A EP2171701A1 EP 2171701 A1 EP2171701 A1 EP 2171701A1 EP 08736506 A EP08736506 A EP 08736506A EP 08736506 A EP08736506 A EP 08736506A EP 2171701 A1 EP2171701 A1 EP 2171701A1
Authority
EP
European Patent Office
Prior art keywords
warning
hazard
data
unit
danger
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.)
Ceased
Application number
EP08736506A
Other languages
German (de)
English (en)
Inventor
Ulrich STÄHLIN
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.)
Continental Teves AG and Co OHG
Original Assignee
Continental Teves AG and Co OHG
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 Continental Teves AG and Co OHG filed Critical Continental Teves AG and Co OHG
Publication of EP2171701A1 publication Critical patent/EP2171701A1/fr
Ceased 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
    • G08G1/0962—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
    • G08G1/096741—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place where the source of the transmitted information selects which information to transmit to each vehicle
    • 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
    • G08G1/20—Monitoring the location of vehicles belonging to a group, e.g. fleet of vehicles, countable or determined number of vehicles
    • G08G1/205—Indicating the location of the monitored vehicles as destination, e.g. accidents, stolen, rental

Definitions

  • the invention relates to the navigation and safety technology for vehicles.
  • the invention relates to a hazard alert unit for a vehicle, a hazard warning system for a plurality of vehicles, the use of a hazard alert unit in a vehicle, a method of alerting a plurality of vehicles to hazards, a computer program product, and a computer readable medium.
  • CGS Hazard warnings based on DSRC Dedicated Short Range Communication
  • DSRC Dedicated Short Range Communication
  • FCD Floating Car Data
  • GPS Global Positioning System
  • GSM Global System for Mobile Communication
  • GPRS Global System for Mobile Communication
  • the GPS receiver measures the position and the FCD method determines from many of these position data travel times of the vehicle.On the GSM network, these travel times as a pearl necklace, where individual points of the It can use these travel times to draw conclusions about the traffic situation, thus collecting traffic status data for traffic information services.
  • a hazard warning unit for a vehicle which is designed to detect dangers and warn of dangers, and which a detection unit in the vehicle for detecting a measured value, an analysis unit for determining whether the detected measured value corresponds to a hazard , and a communication unit for communicating information about the danger to a center when the detected measurement corresponds to the hazard.
  • the danger warning unit is able to detect and then analyze a multiplicity of different measured values.
  • the hazard warning unit can determine whether a dangerous situation exists. For example, the hazard warning unit detects an intervention of the electronic stability program ESP, the corresponding driven speed, the location of the occurrence of this intervention and the current outside temperature. This multitude of measured data is then analyzed and if, for example, a certain speed is not exceeded, but, for example, at the same time a certain temperature is undershot, information data is generated which indicates, for example, black ice. This information data is then transmitted to the central office, which optionally carries out a further evaluation of the information data.
  • the communication unit is designed to transmit the measured value by means of GPRS, UMTS or WiMax.
  • the range of dissemination of the information is significantly greater than with a hazard warning via DSRC. Because in addition one - A -
  • Central station is used with a server and no direct connection between the different vehicles is necessary, the information can also be cached.
  • the information data about the danger also contain additional information data about the location at which the measured value was acquired, about the time at which the measured value was detected, and about the communication unit which transmits the information to the control center sends to the central office.
  • the center is allowed to assign the received data to a corresponding vehicle and also to prevent misuse, for example, by paying attention only to the data of registered vehicles.
  • the communication unit is designed to receive warning data from the control center, the warning data being based on the information data of another communication unit received in the center.
  • information and warnings are received from a plurality of vehicles in the center. After a corresponding evaluation, the warning data are also sent to other vehicles. In this way it is possible to receive warnings from other road users, in which case in each case the center is interposed.
  • the center manages the warning data, filters the warning data, sorts the warning data and can send specific, selected warning data to selected vehicles.
  • the communication unit for retrieving the warning data is executed by the control center at fixed times.
  • the driver of the hazard warning unit can specify at what times the retrieval should take place. Furthermore, the driver can trigger such data retrieval when he z. B. wants to update his digital map.
  • the danger warning unit furthermore has an encryption unit for encrypting the information data, so that an unambiguous assignment of the encrypted information data to the danger warning unit is possible.
  • the detection unit has a GPS sensor, an environment sensor, an ESP sensor, a camera, an ABS (anti-lock braking system) sensor, an ASR (drive slip control) sensor and / or or a speed sensor.
  • a temperature sensor may also be provided.
  • control center is a traffic data center as a service provider.
  • a danger warning system for warning against dangers for a multiplicity of vehicles is specified, which one above Having the danger warning unit described and a center for receiving information from the danger warning unit and for transmitting warning data to the danger warning unit, the control panel is also designed to generate the warning data based on the measured values.
  • the center is designed to transmit first warning data to a first hazard warning unit of a first vehicle and to transmit second warning data to a second hazard warning unit of a second vehicle, the first warning data being different from the second warning data.
  • the center is configured to individually transmit individualized warning data to the plurality of vehicles.
  • the control center can transmit specific, selected vehicle-specific warning data to each vehicle.
  • the warning data may differ from vehicle to vehicle, depending on where the vehicle is located. For example, a first vehicle only needs warning data regarding a first part of its digital map, whereas a second vehicle needs warning data concerning a very different, second part of its digital map because the second vehicle is in a different location.
  • the center is designed to receive information data from a plurality of hazard warning units of different vehicles and to generate warning data based on all received measured values. Furthermore, the control center can receive additional information, for example measurement data from sensors outside the vehicles. These are, for example, induction loops in a road or detectors on the roadside or, for example, under a bridge.
  • the received data can then be statistically evaluated in the control center.
  • methods of data mining can be used, ie statistical-mathematical methods for pattern recognition.
  • a danger warning unit described above in a vehicle is specified.
  • the vehicle is, for example, a motor vehicle, such as a car, bus or truck, or else a rail vehicle, a ship, an aircraft, such as a helicopter or airplane, or, for example, a bicycle.
  • the alert data transmitted from the center to a vehicle may be used to update a digital map, such as a digital navigation map.
  • a digital map such as a digital navigation map.
  • the general term "digital map” also means maps for advanced driver assistance systems (ADAS, Advanced Driver Assistance System), without this being a navigation takes place.
  • a method for warning a plurality of vehicles of dangers in which a measured value is detected by a detection unit in a first vehicle. It is then determined whether the detected measured value corresponds to a hazard. If the acquired measured value coincides with the Danger corresponds to a transmission of information about the risk data to a central office.
  • storage of the type of hazard, the location at which the measured value was detected, the time at which the measured value was detected, and an identification of the communication unit which transmitted the information to the center are also stored. in the central office. Furthermore, a generation of warning data is based on the stored data within the center.
  • retrieval of warning data relevant to a specific second vehicle takes place from the center by the second vehicle.
  • a computer program product which, when executed on a processor, directs the processor to perform the method steps outlined above.
  • a computer-readable medium having stored thereon a computer program product which, when executed on a processor, instructs the processor to perform the method steps outlined above.
  • a fundamental consideration of the invention is to be seen in that an automatic identification of a hazard that has been detected with the aid of a vehicle sensor system, takes place within the vehicle and then a corresponding danger message is transmitted to a control center.
  • the control center evaluates all received messages and informs each participating vehicle of the dangers that are relevant for this vehicle.
  • Fig. 1 shows a schematic representation of a hazard warning unit according to an embodiment of the invention.
  • Fig. 2 shows a schematic representation of a hazard warning system according to an embodiment of the invention.
  • FIG. 3 shows a schematic illustration of a detail of a digital navigation map and an acoustic warning unit according to an exemplary embodiment of the invention.
  • FIG. 4 shows a detail of a digital navigation map for another vehicle according to an embodiment of the invention.
  • FIG. 5 shows a flowchart of a method according to an embodiment of the invention.
  • the danger warning unit 100 has a detection unit 101, an analysis unit 102 and a communication unit 103.
  • the detection unit 101 includes a plurality of different sensors, such as an ESP system 104, a temperature sensor 105, and a GPS unit 106 (hereinafter also referred to as a positioning unit).
  • the analysis unit 102 receives the measured values from the detection unit 101 and can perform an analysis of these measured values as to whether the measured values indicate an actual danger.
  • the communication unit 103 has an antenna 113, via which a wireless communication with a server (see reference number 203 in FIG. 2) can take place.
  • An input unit 111 is connected to the analysis unit 102, which also serves to control the systems connected thereto.
  • Various settings of the hazard warning unit can be made via the input unit 111 and, for example, for a navigation unit, a destination and possibly also a location can be selected.
  • the input of the destination is, for example, by entering the full name of the destination or by selecting from a list that is displayed on an optical output unit, such as a monitor 109, possible. On the monitor 109, the guidance information is also output.
  • warnings can also be output from the control panel on the monitor.
  • the hazard warning unit 100 has a navigation unit and a GPS receiver 106, which is designed to receive navigation signals from GPS satellites.
  • the positioning unit 106 may be implemented for other satellite navigation systems.
  • the unit 100 for performing dead reckoning additionally has a direction sensor 107, a travel distance sensor 108 and possibly also a steering wheel angle sensor 114.
  • Signals of the GPS receiver, the odometer sensor, the direction sensor and / or the steering wheel angle sensor are processed in the control unit or detection unit 102, for example.
  • the vehicle positions determined from these signals are compared with the road maps via map matching.
  • the route guidance information thus obtained is finally output via the monitor 109.
  • an encryption unit 115 which encrypts the data which are to be transmitted via the communication unit 103 to the center 200 (see FIG. 2).
  • a hazard is detected (eg, smoothness, a broken-down vehicle, a previous accident, etc.)
  • this information is transmitted by means of GPRS, UMTS, WiMax or another transmission technology into a database of the system 200.
  • the location (GPS position), detection time and who wrote the danger to the database are also stored.
  • Other vehicles have access to the database via GPRS, UMTS, WiMax, etc. and always receive the relevant information for their area. Relevant are all hazards within a certain distance of the vehicle. There is also the possibility to request or retrieve all information, if necessary for a route calculation.
  • the transmitted data is protected by cryptographic techniques (encrypted) and assigned to exactly one transmitter. This ensures that no misinformation by third parties in the database.
  • a service provider may also be provided, which offers the function in combination with other functions (eg floating car data).
  • FIG. 2 shows a schematic representation of a hazard warning system with a hazard warning unit 100 and a control center 200.
  • the danger warning unit 100 is installed in a vehicle 201.
  • the large number of sensors is not shown.
  • the center 200 also includes a communication unit 202 having a corresponding antenna 204 connected to the server 203.
  • the center 200 and the danger warning unit 100 communicate wirelessly via the radio transmission link 205 with each other.
  • FIG. 3 shows a section 301 from a digital navigation map.
  • a road 302 to which the vehicle 303 is traveling in an east-northeast direction.
  • two danger warnings 304 and 305 are displayed, which correspond to the measurement locations 306, 307.
  • These hazards were detected by other vehicles and transmitted to the control center, whereupon the control center transmitted the warnings to the hazard warning unit of the vehicle 303.
  • This transmission took place because the vehicle 303 moves toward the two danger spots 306, 307. Since the driver is already relatively close to the danger spot 306, an acoustic warning 110 is additionally provided in order to alert him to the danger.
  • FIG. 4 shows a section 401 from another digital navigation map of a second vehicle.
  • the map section 401 shows a road 402 on which the vehicle 403 is located.
  • a danger location 405 can be seen with a corresponding warning 404.
  • This data was transmitted to the second vehicle because the second vehicle 403 moves toward the danger location 405.
  • the warning data of Figure 3 has not been transmitted to the second vehicle to minimize data traffic.
  • step 501 the acquisition of measured values in a vehicle and an analysis of the measured values connected thereto are performed to determine whether the measured values correspond to a hazard.
  • step 502 the transmission of the danger by means of GPRS, UMTS, etc. to a server, which then stores the type of danger, the position of the vehicle, the detection time and specific transmitter information.
  • the data transmission takes place with the help of a cryptography technique.
  • step 503 the center generates warning data based on the transmitted information.
  • step 504 the warning data is retrieved from another designated vehicle from the center.
  • the information or warning data can be downloaded from the server by the vehicle by means of GPRS, UMTS or WiMax if this information is relevant to the vehicle.
  • One criterion for relevance is, for example, the distance of the vehicle from the location of the hazard.
  • the data can be downloaded at fixed time intervals or a so-called push service can be used to warn against dangers with high impact.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Traffic Control Systems (AREA)
  • Navigation (AREA)

Abstract

Selon un exemple de réalisation de l'invention, une unité d'avertissement de dangers pour un véhicule, pour détecter des dangers et pour avertir de la présence de dangers, présente une pluralité d'unités de détection pour détecter des valeurs de mesure et une unité d'analyse pour analyser les valeurs de mesure. Dans le cas de la détection d'un danger, une communication de danger est envoyée à un serveur central qui peut alors la communiquer à d'autres véhicules. Les informations de danger peuvent aussi être mémorisées temporairement par le serveur.
EP08736506A 2007-06-22 2008-04-23 Avertissement de dangers basé sur un serveur Ceased EP2171701A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007029226 2007-06-22
DE102008012660A DE102008012660A1 (de) 2007-06-22 2008-03-05 Serverbasierte Warnung vor Gefahren
PCT/EP2008/054935 WO2009000572A1 (fr) 2007-06-22 2008-04-23 Avertissement de dangers basé sur un serveur

Publications (1)

Publication Number Publication Date
EP2171701A1 true EP2171701A1 (fr) 2010-04-07

Family

ID=40030937

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08736506A Ceased EP2171701A1 (fr) 2007-06-22 2008-04-23 Avertissement de dangers basé sur un serveur

Country Status (4)

Country Link
US (1) US8354942B2 (fr)
EP (1) EP2171701A1 (fr)
DE (1) DE102008012660A1 (fr)
WO (1) WO2009000572A1 (fr)

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Also Published As

Publication number Publication date
DE102008012660A1 (de) 2008-12-24
US20100164752A1 (en) 2010-07-01
US8354942B2 (en) 2013-01-15
WO2009000572A1 (fr) 2008-12-31

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