EP2186078B1 - Emergency calling device for a vehicle - Google Patents

Emergency calling device for a vehicle Download PDF

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Publication number
EP2186078B1
EP2186078B1 EP08787510A EP08787510A EP2186078B1 EP 2186078 B1 EP2186078 B1 EP 2186078B1 EP 08787510 A EP08787510 A EP 08787510A EP 08787510 A EP08787510 A EP 08787510A EP 2186078 B1 EP2186078 B1 EP 2186078B1
Authority
EP
European Patent Office
Prior art keywords
emergency call
server
connection
vehicle
data
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.)
Active
Application number
EP08787510A
Other languages
German (de)
French (fr)
Other versions
EP2186078A1 (en
Inventor
Ulrich STÄHLIN
Marc Menzel
Robert Gee
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 EP2186078A1 publication Critical patent/EP2186078A1/en
Application granted granted Critical
Publication of EP2186078B1 publication Critical patent/EP2186078B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G08G1/096708—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
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/095—Traffic lights
    • 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
    • G08G1/096725—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 generates 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
    • 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
    • G08G1/096783—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 roadside individual element

Definitions

  • the invention relates to the emergency call and safety technology for vehicles.
  • the invention relates to an emergency call device for a vehicle for network-based transmission of an emergency call, an emergency call system, the use of an emergency call device in a vehicle, a vehicle with an emergency call device, and a method.
  • Vehicle emergency call systems have been known for some time.
  • additional service providers may be involved in the communication chain of an emergency call.
  • Most of the information about the accident of the vehicle to a rescue center Public Safety Answering Point, PSAP is sent, which is staffed and which assigns the rescue mission to an ambulance, which is currently in the vicinity of the accident, centrally makes.
  • PSAP Public Safety Answering Point
  • the rescue center uses a fixed database in which the ambulance data is stored.
  • the rescue center and possible helpers such as paramedics
  • GSM Global System for Mobile Communications
  • the rescue center and possible helpers mostly standardized fully digital mobile networks such as the Global System for Mobile Communications (GSM) used.
  • GSM Global System for Mobile Communications
  • satellite navigation systems such as the Global Positioning System (GPS) or generally a Global Navigation Satellite System (GNSS).
  • GPS Global Positioning System
  • GNSS Global Navigation Satellite System
  • an emergency call device for a vehicle for network-based transmission of an emergency call, an emergency call system, a use, a method, a program element, and a computer-readable medium according to the features of the independent claims. Further developments of the invention will become apparent from the dependent claims. The described embodiments equally relate to the emergency call device, the emergency call system, the use, the vehicle, the method, the program element and the computer-readable medium.
  • Ecall automated emergency call
  • Bcall automated technical service call
  • auxiliary unit in the context of the invention, both any medical emergency service, such as an ambulance to understand, as well as any technical support service, such as the General German Automobile Club (ADAC), local workshops, service mobile or other medical or technical support facilities, the In the event of an accident or technical failure, the user of the vehicle can provide assistance.
  • ADAC General German Automobile Club
  • an emergency call device for a vehicle for the network-based transmission of an emergency call to auxiliary units.
  • the emergency call device has an interface for establishing a connection with a server, as well as a transmitting unit for transmitting emergency call data to the server via the connection.
  • the connection is a permanent IP connection and the network interface is in case of acceptance of the emergency call by an auxiliary unit continues to set up a communication connection with the auxiliary unit via the server.
  • the communication connection uses the already existing IP connection between the emergency call device and the server.
  • an automated emergency call is transmitted to the emergency server via a transmitting unit of the emergency call device
  • the necessary data such as position, severity of the accident, type of accident and, for example, individual data about the occupants are transmitted to the emergency server via the IP connection in addition to the emergency call.
  • the server in turn automatically transmits the emergency call to the nearby free auxiliary units. It is thus possible to preselect the free auxiliary units by the server.
  • the server works fully automatically.
  • the individual connections between the server and the respective rescue units can be any physical connection for the exchange of data, such as an IP connection or a GSM radio connection. If an auxiliary unit accepts the emergency call, a connection, for example a voice connection, is established from the receiving rescue unit to the vehicle via the server.
  • At least the part of the communication link between the vehicle and the server uses the still existing IP connection between the vehicle and the server.
  • a routing of the server is thus not required and the setup time and error rate can be reduced.
  • a voice over IP connection can be established in the already existing IP connection.
  • each auxiliary unit can also maintain its respective connection to the server to optimize the setup time.
  • the communication link has a first and a second section.
  • the first section is between the emergency call device and the server, and the second section is between the server and the auxiliary unit accepting the emergency call.
  • At least the first section of the communication connection is a voice over IP connection.
  • the vehicle in such an automated emergency call, the vehicle establishes an IP connection to the server and transmits the necessary data to the server. If an ambulance picks up the emergency call, a voice connection is established via Voice over IP. Since both the vehicle and the server are already registered in the network and there is an IP connection between the vehicle and the server, a voice-over-IP connection can be established without any technical outlay and without any further loss of time.
  • no rescue coordination center is necessary for transmitting the emergency call to the auxiliary units.
  • the emergency unit accepting the emergency call is selected by the direct, independent acceptance of the emergency call of the auxiliary unit.
  • auxiliary units eliminates the need for a mediating body, such as a Public Safety Answering Points or a rescue center, which must be staffed. This can save costs and avoid sources of error. Likewise, the self-selection of the auxiliary unit, which can provide assistance and accepts the emergency call to avoid avoiding the incorrect assignment by the rescue center.
  • the emergency call data are selected from the group consisting of the current and historical position of the vehicle, type of accident, severity of an accident, time of accident, number of occupants, individual information of the occupants, biometric information, information on a technical defect, Fault diagnostic information, and measurements from sensors of the vehicle.
  • assistance can be given to the emergency call, which is adapted individually to the present case.
  • that auxiliary unit can decide to accept the emergency call, which has the necessary elements for optimal assistance.
  • the historical position may be retrieved later by pre-recording the positions of the vehicle.
  • the safety can e.g. be increased in the event that the position determining unit should fail.
  • the type of emergency call data and the parameters of the technical transmission of the emergency call data are adapted to additional information.
  • the additional information corresponds to the external environment of the vehicle.
  • the external environment of the vehicle includes not only the physical and meteorological environmental conditions and the static traffic conditions such as the course of roads, but also the information landscape formed by other vehicles and an infrastructure via communication with the vehicle. Likewise, the external environment includes measured values that are determined by a detection unit of the vehicle.
  • this embodiment of the invention not only emergency data, but general data concern and also a communication between the vehicle and the vehicle or a communication between the vehicle and infrastructure is possible with this embodiment of the invention.
  • the infrastructure may be, for example, a server.
  • the emergency call device is thus a communication unit. This situation-dependent transmission of data can also serve to reduce the transmitted data rate and the amount of data sent in standard situations that do not include an emergency call.
  • a communication unit for a first vehicle for transferring data between the first vehicle and a second vehicle or between the first vehicle and an infrastructure is thus indicated.
  • the communication unit has a transmitting unit, a memory unit and a computing unit.
  • the memory unit is designed to supply additional information.
  • the arithmetic unit for adapting the type of data and for adapting technical parameters of the transmission on the basis of Additional information executed.
  • the additional information corresponds to the external environment of the first vehicle.
  • the memory unit receives data from e.g. a detection unit, provided by the second vehicle or by an infrastructure, based on which the arithmetic unit adapts the parameters of the transmission such as bandwidth, data format or frequency of a transmission.
  • an increased bandwidth, an extended file content, an adapted data format or an increased sampling rate of measured values for the communication with the server, with auxiliary units, with other vehicles or with an infrastructure can mean a gain in security.
  • a situation-adapted reduction of the bandwidth of the vehicle-to-server or vehicle-to-auxiliary unit communication can provide an increased bandwidth for other applications. It can thus be avoided that always the same unadjusted base set of data is transmitted to the server or the auxiliary units. This reduces the amount of data to be sent and saves storage space.
  • the technical parameters of the communication of the vehicle are adapted to the external environment of the vehicle.
  • the vehicle of the emergency call device no longer needs to do so.
  • a vehicle In order to properly assess the information landscape and external environment, a vehicle must, in addition to the information of a message, also take note of its reception time, repetition rate, reception strength and geographical position of the transmitter. From this data, it can then calculate whether it has to send out this message or whether it makes more sense to remain silent. The establishment of a permanent IP connection is not required, but still advantageous.
  • the type of emergency call data is selected from the group consisting of data format, content of the data and format of the data.
  • the parameters of the technical transmission are selected from the group consisting of data rate, frequency of updating the data and bandwidth of the established connection.
  • bandwidth and data rate By adapting the bandwidth and data rate to the current situation in which the vehicle is located, more bandwidth and storage capacity can be made available for other communication tasks. It may, for example, the update of the GPS coordinates of the vehicle in their frequency to the situation in which the vehicle is adjusted. In this case, the situation can be detected by a situation analysis on the basis of the data from environmental sensors or, for example, digital data of a digital map by the emergency call device.
  • the additional information is selected from the group consisting of information from a digital map, information of a situation analysis by means of sensors, meteorological information, danger information from a user of the vehicle, information from other road users and information of a traffic infrastructure.
  • the emergency call device can determine the potential danger or potential for special situations (use cases) and adapt and select the type of data such as format and content for an emergency call or other communications. For example, more data can be sent in front of or behind a curve than on a straight line. Furthermore, for example, at intersections that are part of a traffic infrastructure, information about the gas pedal and the brake pedal of a vehicle can be sent to the surrounding vehicles. This can make a statement about the behavior and the actions of a driver. Depending on the situation, the data will be adjusted. Another possibility is to perform, for example, a situation analysis based on the data from environment sensors or sensors of a detection unit and to adapt the data sent and the data rate to the determined situation.
  • the data rate of the IP connection or the data rate of the communication connection can be linked to the severity of the defect or the danger of the situation or current data, for example Smoke development sensors are adjusted.
  • an increased security can be achieved by means of the emergency call device.
  • the communication between the sensors, the controller and the transmitter or receiver in the vehicle is wired or wireless, e.g. via short-range communication such as Bluetooth.
  • each emergency call device can also be a permanently installed device.
  • the emergency call device may be a fixed emergency call column on a road.
  • an emergency call system for vehicles for network-based transmission of an emergency call is specified.
  • the emergency call system has an emergency call device according to one of the preceding embodiments of the invention and a server.
  • the server is designed such that the emergency call is forwarded to all server-side registered auxiliary units.
  • an emergency call device in a vehicle is indicated.
  • a vehicle with an emergency call device according to one of the preceding exemplary embodiments is specified.
  • a method for network-based transmission of an emergency call of an emergency call device in a vehicle to auxiliary units comprises the following steps: establishing a first connection between the vehicle and the server, sending emergency call data by the emergency call device to a server via the first connection, distributing the emergency call data by the server to the auxiliary units via a second connection, establishing a Communication link between the vehicle and an auxiliary unit accepting the emergency call via the server.
  • the first connection is a permanent IP connection and the communication connection uses the already existing IP connection.
  • the communication link has a first and a second section.
  • the first section is between the emergency call device and the server, and the second section is between the server and the auxiliary unit accepting the emergency call.
  • the establishment of a voice over IP connection takes place at least in the first section of the communication connection.
  • the second section of the communication connection between the server and the auxiliary unit both by means of IP connection or GSM connection as well as by means of any other possible physical data transmission connection.
  • the still existing IP connection is used between the vehicle and the server in order to be able to accelerate the establishment of a voice connection such as a Voice over IP connection in the existing IP connection.
  • the method further comprises the steps of: adjusting the type of emergency call data and the parameters of the technical transmission of the emergency call data to additional information, wherein the additional information corresponds to the external environment of the vehicle.
  • the external environment of the vehicle is not only due to the physical environmental conditions and meteorological conditions, but also the information landscape that is formed by other vehicles or by transmitting infrastructures.
  • the physical environmental conditions can be done, for example, by sensors of a detection unit of the emergency call device.
  • the amount of data and its content is adapted to the particular situation of the vehicle. For example, it can be determined via digital data by the emergency call device, which danger potential exists due to the route dynamics. But other data of the digital map can be used.
  • the type of emergency call data is selected from the group consisting of data format, content of the data and format of the data.
  • the technical transmission parameters are selected from the group consisting of data rate, frequency of update of the data, and bandwidth of the established connection.
  • the sending of redundant information can be avoided.
  • the update of a GPS position can be reduced in frequency if a minimum speed is exceeded.
  • the method further comprises the following steps: providing information about the auxiliary units in the form of an emergency call database to the server by a certification authority and allowing a registration of voluntary auxiliary units in the database by a certification authority.
  • voluntary support units can register with the certification body and have them registered in the emergency database. These new, voluntary aid units then receive the information about an accident as well as the previously registered auxiliary units and can, under certain circumstances, come to the accident site faster and help. This can be done faster help. In order to prevent misuse of this information, the certification body must check the applicant and check for any necessary criteria. Only then is it possible to register in the emergency database with a correspondingly updated transmission to the server.
  • the volunteer support units may be relief workers in factories, doctors, military or retired military personnel.
  • a Bcall can be, for example, voluntary auxiliary units by local workshops or private car experts or employees of motor vehicle associations.
  • the certified registration of voluntary auxiliary units may be used for the categorized supply of information services.
  • sports facilities for travelers can be provided by sports clubs, which are auxiliary units.
  • directions to local attractions for example, can be offered by voluntary additional services. It can be ensured by the certification authority that the entry in the server is not abused.
  • a program element is specified which, when executed on a processor, instructs the processor to perform the above steps.
  • a computer-readable medium on which a program element is stored is indicated, which, when stored on a computer
  • Processor is instructing the processor to perform the above steps.
  • the computer program element may be part of a software that is stored on a processor of the emergency call device.
  • the computer program element can be used in a control unit or a computer unit which, in combination with the emergency call device, initiates and regulates the automated emergency call.
  • this embodiment of the invention comprises a computer program element, which already uses the invention from the beginning, as well as a program element, which causes an existing program for use of the invention by an update.
  • media conversion generally refers to the transfer, conversion or conversion of a file from one file format to another. This applies to the transfer of data between different media and file systems as well as for the transfer of data from one storage medium to another.
  • the control unit can access the detection unit and let the detection unit communicate the current vehicle position.
  • the detection unit for example, a GPS receiver.
  • media conversion refers to the conversion of data between visual, auditory and textual formats, as well as combination formats thereof.
  • the media-converted data can be transmitted, for example, directly to the receiver selected by the control unit.
  • address information can be made clear to the user of a digital map.
  • Fig. 1 shows an emergency call system 113 with an emergency call device 101 and a server 106.
  • the emergency call device for a vehicle for network-based transmission of an emergency call to auxiliary units 104 is executed. The transmission takes place directly so without forwarding the emergency call by a rescue center with persons.
  • the emergency call device comprises a network interface 102 and a transmission unit 103.
  • a connection 107 can be established to the server.
  • the connection 107 is an IP connection that is maintained permanently between the vehicle and the server during an emergency call.
  • the vehicle transmits the necessary data such as position, accident severity and, for example, the time of the accident via the IP connection.
  • the message about the emergency call to all auxiliary units 104 is sent by means of respective connections 114 between the server and the auxiliary unit and also transmits the relevant information.
  • a communication link 108 is established between the emergency call accepting unit 105 and the vehicle 100 via the server.
  • the connection 114 between the server and the auxiliary units can be, for example, an IP connection or also a GSM connection or also any other physical connection for data transmission.
  • the first part 109 of the communication connection 108 can use the existing IP connection and save setup times.
  • the first part 109 may be implemented as a Voice over IP connection between the server and the emergency call device 101. Since routing no longer has to be performed by the server, the setup time of the voice connection is unnecessary.
  • Fig. 1 an emergency database 111 shown in the server, in which the information about the auxiliary units 104 are stored.
  • a certification authority 112 is shown, through which voluntary additional auxiliary units can be entered into the emergency database after a qualifying examination by the certification authority.
  • These additional auxiliary units can indicate under what circumstances they want to be notified in the event of an emergency call.
  • Crucial parameters may be, for example, time of day, distance to the accident, type of road on which the accident took place, or severity of the accident. Due to the direct connection to the auxiliary units, the selection of that auxiliary unit which accepts the emergency call can be made independently by the auxiliary unit. An immediate and self-sufficient emergency call can thus take place. In addition to shorter connection times, lower costs and a lower susceptibility to errors can be realized.
  • FIG. 12 shows vehicle-to-vehicle communication 206 and vehicle-to-infrastructure communication 202 according to one embodiment of the invention.
  • vehicles 100 are shown and an infrastructure 201, for example, as a server, as in Fig. 1 shown with reference numeral 106 may be executed.
  • 201 can also be a transport infrastructure.
  • communication units 203 are shown in the vehicles, for example, as an emergency call device as in Fig. 1 101 may be implemented.
  • the communication units are configured to communicate data between a first and a second vehicle or between a vehicle and the infrastructure.
  • each communication unit can have a transmitting unit, a memory unit and a computing unit.
  • the memory unit can be designed to supply additional information.
  • the arithmetic unit for adapting the type of data and for adapting technical parameters of the transmission the data is executed on the basis of the additional information, the additional information corresponding to the external environment of the first vehicle.
  • communication 202 between the vehicle and the infrastructure may be as IP connection 107 as in FIG Fig. 1 shown to be executed.
  • the format of the data to be transmitted via the communication 206 and 202 as well as the data rate can be adapted to the respective situation of the vehicle. For example, it can be determined on the basis of a digital map, which danger potential exists for special situations. Thereupon, the bandwidth of the communication link 202 and 206 may be reduced or increased by the communication units 203. But also on the basis of sensor values of a detection unit, which is located in the vehicle, the data traffic can be adjusted. The available bandwidth can be used for other communication tasks of the vehicle.
  • This control unit is able to regulate and control the adaptation of the data traffic of the emergency call device 103 or the transmission unit (see page 16 above) on the basis of the measured values.
  • Measured values can be stored in a memory 318.
  • a monitor is indicated at 319, on which, for example, current values of the sensors can be displayed.
  • an output unit 320 and an input unit 321 are shown as a user interface.
  • a driver assistance system 322 may be used in the system 300.
  • An encryption device 323 is able to increase the security of communication with other vehicles or infrastructure facilities.
  • the IP connection which can be maintained permanently, can be established to the server.
  • Fig. 4 shows a flowchart according to an embodiment of the invention.
  • step S1 a first connection is established between the vehicle and a server.
  • step S2 emergency call data is sent by the emergency call device to a server via the first connection.
  • step S3 emergency call data is distributed by a server to the auxiliary units via a second connection, wherein establishment of a communication connection between the vehicle and an emergency unit accepting the emergency call is made via the server through step S4.
  • a voice over IP connection is established at least in the first section of the communication connection.
  • step S6 the type of emergency call data and / or the parameters of the technical transmission of the emergency call data are adapted to additional information.
  • step S7 information about the auxiliary units in the form of an emergency call database is provided to the server by a certification authority.
  • Method step S8 describes allowing a registration of voluntary auxiliary units in the database by a certification authority.

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Abstract

A network-based emergency call device for a vehicle. A first connection between the vehicle and a server is firmly prescribed as a permanent IP connection. This connection is used to send an emergency call, together with the necessary emergency call data to the server. The latter forwards the emergency to all the registered assistance units via further connections directly and without human action. The assistance unit providing assistance is selected automatically by taking the emergency call by an assistance unit. The subsequent setup of a communication link between the assistance unit taking the call and the vehicle involves the use of the already existing IP connection between the vehicle and the server for the communication link which is to be set up. The data to be transmitted and the data rate can also be customized to the current situation of the vehicle and to the surroundings of the vehicle.

Description

Gebiet der Erfindung:Field of the invention:

Die Erfindung betrifft die Notruf- und Sicherheitstechnik für Fahrzeuge. Insbesondere betrifft die Erfindung eine Notrufeinrichtung für ein Fahrzeug zum netzwerkbasierten Übermitteln eines Notrufs, ein Notrufsystem, die Verwendung einer Notrufeinrichtung in einem Fahrzeug, ein Fahrzeug mit einer Notrufeinrichtung, sowie ein Verfahren.The invention relates to the emergency call and safety technology for vehicles. In particular, the invention relates to an emergency call device for a vehicle for network-based transmission of an emergency call, an emergency call system, the use of an emergency call device in a vehicle, a vehicle with an emergency call device, and a method.

Technologischer Hintergrund:Technological background:

Fahrzeugnotrufsysteme sind seit längerer Zeit bekannt. Zur automatisierten Absetzung eines Notrufs (Ecall) werden Sendeeinheiten in Fahrzeugen platziert, um im Falle eines Unfalls automatisch eine einheitliche Nummer, beispielsweise die Euronotrufnummer 112 oder die 911 in den USA, anzuwählen. Möglicherweise sind zusätzlich weitere Dienstleister an der Kommunikationskette eines Notrufs beteiligt.
Meist wird die Information über den Unfall vom Fahrzeug an eine Rettungsleitstelle (Public Safety Answering Point, PSAP) geschickt, welche personell besetzt ist und welche eine Zuweisung des Rettungsauftrages an einen Krankenwagen, der sich gerade in der Nähe des Unfallortes befindet, zentral vornimmt. Dabei greift die Rettungsleitstelle auf eine fest vorgegebene Datenbank zurück, in welcher die Daten der Krankenwagen gespeichert sind.Vehicle emergency call systems have been known for some time. For automatic cancellation of an emergency call (Ecall), transmitting units are placed in vehicles in order to automatically dial a uniform number in the case of an accident, for example the Euro emergency number 112 or the 911 in the USA. In addition, additional service providers may be involved in the communication chain of an emergency call.
Most of the information about the accident of the vehicle to a rescue center (Public Safety Answering Point, PSAP) is sent, which is staffed and which assigns the rescue mission to an ambulance, which is currently in the vicinity of the accident, centrally makes. The rescue center uses a fixed database in which the ambulance data is stored.

Weiterhin werden zur Datenübermittlung zwischen den Fahrzeugen, welche mit Ecall ausgestattet sind, der Rettungsleitstelle und möglichen Helfern, wie beispielsweise Sanitätern, meist standardisierte volldigitale Mobilfunknetze wie das Global System for Mobile Communications (GSM), verwendet. Weiterhin werden zur geographischen Ortung des Unfalls Geodaten mit Hilfe von Satellitennavigationssystemen wie dem Global Positioning System (GPS) oder allgemein einem Global Navigation Satellite System (GNSS) übertragen. So ist eine schnelle Feststellung des Unfallortes gewährleistet. Dabei wird ein vordefinierter Datensatz an die Rettungsleitstelle übermittelt.Furthermore, for data transmission between the vehicles, which are equipped with Ecall, the rescue center and possible helpers, such as paramedics, mostly standardized fully digital mobile networks such as the Global System for Mobile Communications (GSM) used. Furthermore, for geographic location of the accident geodata with the help of satellite navigation systems such as the Global Positioning System (GPS) or generally a Global Navigation Satellite System (GNSS). Thus, a quick determination of the accident location is guaranteed. In this case, a predefined data record is transmitted to the rescue coordination center.

US 6 147 598 und EP 1 814 093 offenbaren Notrufsysteme mit Übertragung und/oder Bereitstellung von Daten über das Internet. US 6,147,598 and EP 1 814 093 reveal emergency call systems with transmission and / or provision of data via the Internet.

Zusammenfassung der Erfindung:Summary of the invention:

Es ist eine Aufgabe der Erfindung, einen verbesserten Notruf für Fahrzeuge bereitzustellen.It is an object of the invention to provide an improved emergency call for vehicles.

Es sind eine Notrufeinrichtung für ein Fahrzeug zum netzwerkbasierten Übermitteln eines Notrufs, ein Notrufsystem, eine Verwendung, ein Verfahren, ein Programmelement, sowie ein computerlesbares Medium gemäß den Merkmalen der unabhängigen Ansprüche angegeben. Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen. Die beschriebenen Ausführungsbeispiele betreffen gleichermaßen die Notrufeinrichtung, das Notrufsystem, die Verwendung, das Fahrzeug, das Verfahren, das Programmelement und das computerlesbare Medium.There are provided an emergency call device for a vehicle for network-based transmission of an emergency call, an emergency call system, a use, a method, a program element, and a computer-readable medium according to the features of the independent claims. Further developments of the invention will become apparent from the dependent claims. The described embodiments equally relate to the emergency call device, the emergency call system, the use, the vehicle, the method, the program element and the computer-readable medium.

Es sei darauf hingewiesen, dass im Kontext der Erfindung die folgenden Definitionen und Abkürzungen benutzt werden.It should be noted that the following definitions and abbreviations are used in the context of the invention.

Notruf:emergency:

Darunter ist sowohl ein automatisierter Notruf (Ecall) sowie auch ein automatisierter technischer Serviceruf (Breakdown Call, Bcall) zu verstehen. Weiterhin kann damit auch jede andere Kommunikation innerhalb eines Informationsdienstes gemeint sein.This includes both an automated emergency call (Ecall) as well as an automated technical service call (Breakdown Call, Bcall). Furthermore, this can also mean any other communication within an information service.

Verbindung:Connection:

Darunter ist jede physikalische Verbindung zu verstehen, welche einen Austausch von Daten zwischen einem Sender und einem Empfänger erlaubt.This means any physical connection that allows an exchange of data between a sender and a receiver.

Hilfseinheit:Auxiliary unit:

Unter dem Begriff Hilfseinheit ist im Kontext der Erfindung sowohl jeder medizinische Hilfsdienst, wie ein Rettungswagen, zu verstehen, als auch jeder technische Hilfsdienst, wie z.B. der Allgemeine Deutsche Automobil Club (ADAC), lokale Werkstätten, Servicemobile oder sonstige medizinische oder technische Hilfseinrichtungen, die im Falle eines Unfalls oder eines technischen Ausfalls dem Benutzer des Fahrzeuges Hilfe leisten können.The term auxiliary unit in the context of the invention, both any medical emergency service, such as an ambulance to understand, as well as any technical support service, such as the General German Automobile Club (ADAC), local workshops, service mobile or other medical or technical support facilities, the In the event of an accident or technical failure, the user of the vehicle can provide assistance.

Gemäß einem Ausführungsbeispiel der Erfindung ist eine Notrufeinrichtung für ein Fahrzeug zum netzwerkbasierten Übermitteln eines Notrufs an Hilfseinheiten angegeben. Dabei weist die Notrufeinrichtung eine Schnittstelle zum Aufbau einer Verbindung mit einem Server auf, ebenso eine Sendeeinheit zum Übermitteln von Notrufdaten an den Server über die Verbindung. Dabei ist die Verbindung eine dauerhafte IP-Verbindung und die Netzwerkschnittstelle ist im Falle einer Annahme des Notrufs durch eine Hilfseinheit weiterhin zum Aufbau einer Kommunikationsverbindung mit der Hilfseinheit über den Server ausgeführt. Weiterhin nutzt die Kommunikationsverbindung die bereits bestehende IP-Verbindung zwischen der Notrufeinrichtung und dem Server.According to one exemplary embodiment of the invention, an emergency call device for a vehicle is provided for the network-based transmission of an emergency call to auxiliary units. In this case, the emergency call device has an interface for establishing a connection with a server, as well as a transmitting unit for transmitting emergency call data to the server via the connection. In this case, the connection is a permanent IP connection and the network interface is in case of acceptance of the emergency call by an auxiliary unit continues to set up a communication connection with the auxiliary unit via the server. Furthermore, the communication connection uses the already existing IP connection between the emergency call device and the server.

Durch die bereits bestehende IP-Verbindung zwischen dem Fahrzeug und dem Server, welche dauerhaft während des Notrufs aufrecht erhalten bleiben kann, ist ein schnellerer Aufbau einer Kommunikationsverbindung zwischen der Hilfseinheit, die den Notruf angenommen hat und dem Fahrzeug möglich. Ein Routen durch den Server kann entfallen. Durch die Verwendung der bestehenden IP-Verbindung entfällt somit die sonst notwendige Aufbauzeit für beispielsweise eine Sprachverbindung. Weiterhin entfällt durch die direkte Verbindung zu den Hilfseinheiten die Notwendigkeit einer vermittelnden Stelle, die personell besetzt sein muss. Ein schnellerer, effizienterer, kostengünstigerer und weniger fehleranfälligerer automatisierter Notruf ist somit möglich.Due to the already existing IP connection between the vehicle and the server, which can be maintained permanently during the emergency call, a faster establishment of a communication connection between the auxiliary unit that has accepted the emergency call and the vehicle is possible. Routing through the server can be omitted. By using the existing IP connection thus eliminates the otherwise necessary setup time for example, a voice connection. Furthermore, due to the direct connection to the auxiliary units, there is no need for a mediating position, which must be staffed. A faster, more efficient, less expensive and less error-prone automated emergency call is thus possible.

Wird ein automatisierter Notruf über eine Sendeeinheit der Notrufeinrichtung an den Notfallserver übermittelt, so werden neben dem Notruf die notwendigen Daten wie Position, Schwere des Unfalls, Art des Unfalls sowie z.B. individuelle Daten über die Insassen an den Notfallserver über die IP-Verbindung übermittelt. Der Server wiederum übermittelt voll automatisiert den Notruf an die in der Nähe befindlichen freien Hilfseinheiten. Es ist somit eine Vorauswahl hinsichtlich der freien Hilfseinheiten durch den Server möglich. Dabei arbeitet der Server vollautomatisiert. Die einzelnen Verbindungen zwischen dem Server und den jeweiligen Rettungseinheiten können jede beliebige physikalische Verbindung zum Austausch von Daten sein wie beispielsweise eine IP-Verbindung oder eine GSM-Funkverbindung. Nimmt eine Hilfseinheit den Notruf an, so wird eine Verbindung z.B. eine Sprachverbindung von der annehmenden Rettungseinheit zu dem Fahrzeug über den Server aufgebaut. Zumindest der Teil der Kommunikationsverbindung, der sich zwischen dem Fahrzeug und dem Server befindet, nutzt dabei die immer noch bestehende IP-Verbindung zwischen dem Fahrzeug und dem Server. Ein Routen des Servers ist somit nicht erforderlich und die Aufbauzeit und Fehleranfälligkeit kann reduziert werden. Beispielsweise kann eine Voice over IP-Verbindung in der bereits bestehenden IP-Verbindung aufgebaut werden. Zusätzlich kann ebenso jede Hilfseinheit ihre jeweilige Verbindung zum Server zur Optimierung der Aufbauzeit aufrechterhalten.If an automated emergency call is transmitted to the emergency server via a transmitting unit of the emergency call device, the necessary data such as position, severity of the accident, type of accident and, for example, individual data about the occupants are transmitted to the emergency server via the IP connection in addition to the emergency call. The server in turn automatically transmits the emergency call to the nearby free auxiliary units. It is thus possible to preselect the free auxiliary units by the server. The server works fully automatically. The individual connections between the server and the respective rescue units can be any physical connection for the exchange of data, such as an IP connection or a GSM radio connection. If an auxiliary unit accepts the emergency call, a connection, for example a voice connection, is established from the receiving rescue unit to the vehicle via the server. At least the part of the communication link between the vehicle and the server uses the still existing IP connection between the vehicle and the server. A routing of the server is thus not required and the setup time and error rate can be reduced. For example, a voice over IP connection can be established in the already existing IP connection. In addition, each auxiliary unit can also maintain its respective connection to the server to optimize the setup time.

Gemäß einem weiteren Ausführungsbeispiel der Erfindung weist die Kommunikationsverbindung einen ersten und einen zweiten Abschnitt auf. Dabei besteht der erste Abschnitt zwischen der Notrufeinrichtung und dem Server und der zweite Abschnitt besteht zwischen dem Server und der den Notruf annehmenden Hilfseinheit. Dabei ist zumindest der erste Abschnitt der Kommunikationsverbindung eine Voice over IP-Verbindung.According to a further embodiment of the invention, the communication link has a first and a second section. The first section is between the emergency call device and the server, and the second section is between the server and the auxiliary unit accepting the emergency call. At least the first section of the communication connection is a voice over IP connection.

Mit anderen Worten stellt bei einem solchen automatisierten Notruf das Fahrzeug eine IP-Verbindung zu dem Server her und übermittelt die notwendigen Daten an den Server. Nimmt ein Rettungswagen den Notruf an, so wird eine Sprachverbindung über Voice over IP zu diesem aufgebaut. Da sowohl das Fahrzeug als auch der Server bereits im Netzwerk angemeldet sind und eine IP-Verbindung zwischen dem Fahrzeug und dem Server besteht, kann ohne jeglichen technischen Aufwand und ohne weitere Zeitverluste eine Voice over IP-Verbindung hergestellt werden.In other words, in such an automated emergency call, the vehicle establishes an IP connection to the server and transmits the necessary data to the server. If an ambulance picks up the emergency call, a voice connection is established via Voice over IP. Since both the vehicle and the server are already registered in the network and there is an IP connection between the vehicle and the server, a voice-over-IP connection can be established without any technical outlay and without any further loss of time.

Gemäß einem weiteren Ausführungsbeispiel der Erfindung ist zur Übermittlung des Notrufs an die Hilfseinheiten keine Rettungsleitstelle notwendig. Ebenso erfolgt eine Auswahl der den Notruf annehmenden Hilfseinheit durch die unmittelbare, selbstständige Annahme des Notrufs der Hilfseinheit.According to a further exemplary embodiment of the invention, no rescue coordination center is necessary for transmitting the emergency call to the auxiliary units. Likewise, the emergency unit accepting the emergency call is selected by the direct, independent acceptance of the emergency call of the auxiliary unit.

Durch die direkte Verbindung zu den Hilfseinheiten entfällt die Notwendigkeit einer vermittelnden Stelle, wie beispielsweise eines Public Safety Answering Points oder einer Rettungsleitstelle, die personell besetzt sein muss. Es können so Kosten gespart und Fehlerquellen vermieden werden. Ebenso kann die Selbstauswahl der Hilfseinheit, die Hilfe leisten kann und den Notruf annimmt eine Vermeidung der fehlerhaften Zuweisung durch die Rettungsleitstelle bedeuten.The direct connection to the auxiliary units eliminates the need for a mediating body, such as a Public Safety Answering Points or a rescue center, which must be staffed. This can save costs and avoid sources of error. Likewise, the self-selection of the auxiliary unit, which can provide assistance and accepts the emergency call to avoid avoiding the incorrect assignment by the rescue center.

Gemäß einem weiteren Ausführungsbeispiel der Erfindung sind die Notrufdaten ausgewählt aus der Gruppe bestehend aus aktueller und historischer Position des Fahrzeuges, Art eines Unfalls, Schwere eines Unfalls, Unfallzeitpunkt, Anzahl der Insassen, individuelle Information der Insassen, biometrische Information, Informationen zu einem technischen Defekt, Fehlerdiagnoseinformationen, und Messwerte von Sensoren des Fahrzeuges.According to a further exemplary embodiment of the invention, the emergency call data are selected from the group consisting of the current and historical position of the vehicle, type of accident, severity of an accident, time of accident, number of occupants, individual information of the occupants, biometric information, information on a technical defect, Fault diagnostic information, and measurements from sensors of the vehicle.

Mit anderen Worten kann eine Hilfe auf den Notruf erfolgen, welche individuell auf den vorliegenden Fall angepasst wird. Mittels der gesendeten Daten kann sich diejenige Hilfseinheit zur Annahme des Notrufs entschließen, welche die notwendigen Elemente zur optimalen Hilfeleistung aufweist. Die historische Position kann durch vorangegangenes Aufzeichnen der Positionen des Fahrzeuges später wieder zur Verfügung gestellt werden. Damit kann die Sicherheit z.B. für den Fall erhöht werden, dass die Positionsbestimmungseinheit ausfallen sollte.In other words, assistance can be given to the emergency call, which is adapted individually to the present case. By means of the transmitted data, that auxiliary unit can decide to accept the emergency call, which has the necessary elements for optimal assistance. The historical position may be retrieved later by pre-recording the positions of the vehicle. Thus, the safety can e.g. be increased in the event that the position determining unit should fail.

Gemäß einem weiteren Ausführungsbeispiel der Erfindung ist die Art der Notrufdaten und die Parameter der technischen Übermittlung der Notrufdaten an Zusatzinformation angepasst. Dabei korrespondiert die Zusatzinformation mit der äußeren Umgebung des Fahrzeuges.According to a further exemplary embodiment of the invention, the type of emergency call data and the parameters of the technical transmission of the emergency call data are adapted to additional information. In this case, the additional information corresponds to the external environment of the vehicle.

Dabei gehören zur äußeren Umgebung des Fahrzeuges nicht nur die physischen und meteorologischen Umweltbedingungen und die statischen Verkehrsverhältnisse wie Straßenverläufe, sondern auch die Informationslandschaft, die durch andere Fahrzeuge und eine Infrastruktur über Kommunikation mit dem Fahrzeug gebildet wird. Ebenso gehören zur äußeren Umgebung Messwerte, die von einer Detektionseinheit des Fahrzeuges ermittelt werden.The external environment of the vehicle includes not only the physical and meteorological environmental conditions and the static traffic conditions such as the course of roads, but also the information landscape formed by other vehicles and an infrastructure via communication with the vehicle. Likewise, the external environment includes measured values that are determined by a detection unit of the vehicle.

Dabei kann dieses Ausführungsbeispiel der Erfindung nicht nur Notrufdaten, sondern allgemeine Daten betreffen und auch eine Kommunikation zwischen Fahrzeug und Fahrzeug bzw. eine Kommunikation zwischen Fahrzeug und Infrastruktur ist mit diesem Ausführungsbeispiel der Erfindung möglich. Dabei kann die Infrastruktur beispielsweise ein Server sein. Die Notrufeinrichtung ist somit eine Kommunikationseinheit. Diese situationsabhängige Übermittlung von Daten kann ebenso dazu dienen, in Standardsituationen, die nicht einen Notruf beinhalten die gesendete Datenrate und die gesendete Datenmenge zu reduzieren.In this case, this embodiment of the invention not only emergency data, but general data concern and also a communication between the vehicle and the vehicle or a communication between the vehicle and infrastructure is possible with this embodiment of the invention. The infrastructure may be, for example, a server. The emergency call device is thus a communication unit. This situation-dependent transmission of data can also serve to reduce the transmitted data rate and the amount of data sent in standard situations that do not include an emergency call.

Mit anderen Worten ist damit eine Kommunikationseinheit für ein erstes Fahrzeug zum Übermitteln von Daten zwischen dem ersten Fahrzeug und einem zweiten Fahrzeug oder zwischen dem ersten Fahrzeug und einer Infrastruktur angegeben. Dabei weist die Kommunikationseinheit eine Sendeeinheit, eine Speichereinheit und eine Recheneinheit auf. Weiterhin ist die Speichereinheit zur Zuführung von Zusatzinformation ausgeführt. Weiterhin ist die Recheneinheit zur Anpassung der Art der Daten und zur Anpassung technischer Parameter der Übermittlung auf Basis der Zusatzinformation ausgeführt. Dabei korrespondiert die Zusatzinformation mit der äußeren Umgebung des ersten Fahrzeuges.In other words, a communication unit for a first vehicle for transferring data between the first vehicle and a second vehicle or between the first vehicle and an infrastructure is thus indicated. In this case, the communication unit has a transmitting unit, a memory unit and a computing unit. Furthermore, the memory unit is designed to supply additional information. Furthermore, the arithmetic unit for adapting the type of data and for adapting technical parameters of the transmission on the basis of Additional information executed. In this case, the additional information corresponds to the external environment of the first vehicle.

Mit der Zuführung der Zusatzinformation werden der Speichereinheit diejenigen Daten aus z.B. einer Detektionseinheit, von dem zweiten Fahrzeug oder von einer Infrastruktur bereitgestellt, auf Basis welcher die Recheneinheit die Parameter der Übermittlung wie Bandbreite, Datenformat oder Frequenz einer Übermittlung anpasst.With the addition of the additional information, the memory unit receives data from e.g. a detection unit, provided by the second vehicle or by an infrastructure, based on which the arithmetic unit adapts the parameters of the transmission such as bandwidth, data format or frequency of a transmission.

Dabei kann beispielsweise in Gefahrensituationen eine erhöhte Bandbreite, ein erweiterter Dateiinhalt, ein angepasstes Datenformat oder eine erhöhte Abtastrate von Messwerten für die Kommunikation mit dem Server, mit Hilfseinheiten, mit anderen Fahrzeugen oder mit einer Infrastruktur einen Sicherheitsgewinn bedeuten. Es können mehr sicherheitsrelevante Daten, wie aktuelle Messwerte, von z.B. einem Rauchsensor gesendet werden. Damit können Rettungskosten eingespart werden. Durch eine situationsangepasste Reduzierung der Bandbreite der Fahrzeug-zu-Server- oder Fahrzeug-zu-Hilfseinheit-Kommunikation kann anderen Anwendungen eine erhöhte Bandbreite zur Verfügung gestellt werden. Es kann damit vermieden werden, dass stets der gleiche unangepasste Basissatz an Daten an den Server oder die Hilfseinheiten übermittelt wird. Damit kann die zu sendende Datenmenge reduziert und Speicherplatz eingespart werden. Mit anderen Worten werden die technischen Parameter der Kommunikation des Fahrzeuges an äußere Umgebung des Fahrzeuges angepasst.In hazardous situations, for example, an increased bandwidth, an extended file content, an adapted data format or an increased sampling rate of measured values for the communication with the server, with auxiliary units, with other vehicles or with an infrastructure can mean a gain in security. More safety-relevant data, such as current measured values, of e.g. be sent to a smoke sensor. So rescue costs can be saved. A situation-adapted reduction of the bandwidth of the vehicle-to-server or vehicle-to-auxiliary unit communication can provide an increased bandwidth for other applications. It can thus be avoided that always the same unadjusted base set of data is transmitted to the server or the auxiliary units. This reduces the amount of data to be sent and saves storage space. In other words, the technical parameters of the communication of the vehicle are adapted to the external environment of the vehicle.

Wird zum Beispiel innerhalb eines kurzen Zeitfensters von mehreren Fahrzeugen, die in einem kurzen Abstand vorausfahren, dieselbe Situation gemeldet, braucht das Fahrzeug der erfindungsgemäßen Notrufeinrichtung dies nicht mehr tun. Um die Informationslandschaft und äußere Umgebung richtig zu beurteilen, muss ein Fahrzeug neben den Informationen einer Meldung auch deren Empfangszeitpunkt, Wiederholrate, Empfangsstärke und geographische Position des Senders beachten. Aus diesen Daten kann es dann berechnen, ob es diese Meldung auch aussenden muss oder ob es sinnvoller ist, stumm zu bleiben. Der Aufbau einer dauerhaften IP Verbindung ist hierfür nicht erforderlich, aber dennoch vorteilhaft.If, for example, the same situation is reported within a short time window of several vehicles driving ahead at a short distance, the vehicle of the emergency call device according to the invention no longer needs to do so. In order to properly assess the information landscape and external environment, a vehicle must, in addition to the information of a message, also take note of its reception time, repetition rate, reception strength and geographical position of the transmitter. From this data, it can then calculate whether it has to send out this message or whether it makes more sense to remain silent. The establishment of a permanent IP connection is not required, but still advantageous.

Gemäß einem weiteren Ausführungsbeispiel der Erfindung ist die Art der Notrufdaten ausgewählt aus der Gruppe bestehend aus Datenformat, Inhalt der Daten und Aufbereitungsart der Daten. Die Parameter der technischen Übermittlung sind ausgewählt aus der Gruppe bestehend aus Datenrate, Frequenz einer Aktualisierung der Daten und Bandbreite der aufgebauten Verbindung.According to a further exemplary embodiment of the invention, the type of emergency call data is selected from the group consisting of data format, content of the data and format of the data. The parameters of the technical transmission are selected from the group consisting of data rate, frequency of updating the data and bandwidth of the established connection.

Durch die Anpassung der Bandbreite und der Datenrate an die aktuelle Situation, in der sich das Fahrzeug befindet, kann für andere Kommunikationsaufgaben mehr Bandbreite sowie Speicherkapazität zur Verfügung gestellt werden. Es kann beispielsweise auch die Aktualisierung der GPS-Koordinaten des Fahrzeuges in ihrer Frequenz an die Situation, in der sich das Fahrzeug befindet, angepasst werden. Dabei kann die Situation durch eine Situationsanalyse auf Basis der Daten von Umfeldsensoren oder beispielsweise von digitalen Daten einer digitalen Karte durch die Notrufeinrichtung erfasst werden.By adapting the bandwidth and data rate to the current situation in which the vehicle is located, more bandwidth and storage capacity can be made available for other communication tasks. It may, for example, the update of the GPS coordinates of the vehicle in their frequency to the situation in which the vehicle is adjusted. In this case, the situation can be detected by a situation analysis on the basis of the data from environmental sensors or, for example, digital data of a digital map by the emergency call device.

Gemäß einem weiteren Ausführungsbeispiel der Erfindung ist die Zusatzinformation ausgewählt aus der Gruppe bestehend aus Information aus einer digitalen Karte, Information einer Situationsanalyse mittels Sensoren, meteorologische Information, Gefahreninformation von einem Benutzer des Fahrzeuges, Information von anderen Verkehrsteilnehmern und Information einer Verkehrsinfrastruktur.According to a further exemplary embodiment of the invention, the additional information is selected from the group consisting of information from a digital map, information of a situation analysis by means of sensors, meteorological information, danger information from a user of the vehicle, information from other road users and information of a traffic infrastructure.

Beispielsweise kann die Notrufeinrichtung auf Basis einer digitalen Karte ermitteln, welches Gefahrenpotential bzw. welches Potential für spezielle Situationen (Use Cases) vorhanden ist und daran angepasst die Art der Daten wie Format und Inhalt für einen Notruf oder auch andere Kommunikationen auswählen und anpassen. So können beispielsweise vor oder hinter einer Kurve häufiger Daten versendet werden als auf gerade Strecke. Weiterhin können beispielsweise an Kreuzungen, die Teil einer Verkehrsinfrastruktur sind, Informationen über das Gaspedal und das Bremspedal eines Fahrzeuges an die umliegenden Fahrzeuge versendet werden. Damit kann eine Aussage über das Verhalten und die Aktionen eines Fahrers gemacht werden. Je nach Situation werden die Daten angepasst. Eine andere Möglichkeit ist es, beispielsweise eine Situationsanalyse auf Basis der Daten von Umfeldsensoren oder Sensoren einer Detektionseinheit durchzuführen und die versendeten Daten und die Datenrate an die ermittelte Situation anzupassen.For example, based on a digital map, the emergency call device can determine the potential danger or potential for special situations (use cases) and adapt and select the type of data such as format and content for an emergency call or other communications. For example, more data can be sent in front of or behind a curve than on a straight line. Furthermore, for example, at intersections that are part of a traffic infrastructure, information about the gas pedal and the brake pedal of a vehicle can be sent to the surrounding vehicles. This can make a statement about the behavior and the actions of a driver. Depending on the situation, the data will be adjusted. Another possibility is to perform, for example, a situation analysis based on the data from environment sensors or sensors of a detection unit and to adapt the data sent and the data rate to the determined situation.

Sollte ein Fahrzeug beispielsweise einen technischen Defekt haben und einen Breakdown Call mittels IP-Verbindung an den Server absetzen, kann die Datenrate der IP-Verbindung oder auch die Datenrate der Kommunikationsverbindung an die Schwere des Defekts oder die Gefährlichkeit der Situation oder an aktuelle Daten beispielsweise eines Rauchentwicklungssensors angepasst werden. Damit kann eine gesteigerte Sicherheit mittels der Notrufeinrichtung erreicht werden.For example, if a vehicle has a technical defect and sends a breakdown call to the server via an IP connection, the data rate of the IP connection or the data rate of the communication connection can be linked to the severity of the defect or the danger of the situation or current data, for example Smoke development sensors are adjusted. Thus, an increased security can be achieved by means of the emergency call device.

Die Kommunikation zwischen den Sensoren, dem Steuergerät und Sender oder Empfänger im Fahrzeug erfolgt kabelgebunden oder kabellos, z.B. über Nahbereichskommunikation wie Bluetooth.The communication between the sensors, the controller and the transmitter or receiver in the vehicle is wired or wireless, e.g. via short-range communication such as Bluetooth.

Es sei darauf hingewiesen, dass jede Notrufvorrichtung auch eine fest installierte Vorrichtung sein kann. Beispielsweise kann die Notrufeinrichtung eine fixierte Notrufsäule an einer Straße sein.It should be noted that each emergency call device can also be a permanently installed device. For example, the emergency call device may be a fixed emergency call column on a road.

Gemäß einem weiteren Ausführungsbeispiel der Erfindung ist ein Notrufsystem für Fahrzeuge zum netzwerkbasierten Übermitteln eines Notrufs angegeben. Dabei weist das Notrufsystem eine Notrufeinrichtung nach einem der vorhergehenden Ausführungsbeispiele der Erfindung auf sowie einen Server. Weiterhin ist der Server derart ausgeführt, dass der Notruf an alle serverseitig registrierten Hilfseinheiten weitergeleitet wird.According to a further exemplary embodiment of the invention, an emergency call system for vehicles for network-based transmission of an emergency call is specified. In this case, the emergency call system has an emergency call device according to one of the preceding embodiments of the invention and a server. Furthermore, the server is designed such that the emergency call is forwarded to all server-side registered auxiliary units.

Gemäß einem weiteren Ausführungsbeispiel der Erfindung ist die Verwendung einer Notrufeinrichtung in einem Fahrzeug angegeben.According to a further exemplary embodiment of the invention, the use of an emergency call device in a vehicle is indicated.

Gemäß einem weiteren Ausführungsbeispiel der Erfindung ist ein Fahrzeug mit einer Notrufeinrichtung nach einem der vorherigen Ausführungsbeispiele angegeben.According to a further exemplary embodiment of the invention, a vehicle with an emergency call device according to one of the preceding exemplary embodiments is specified.

Gemäß einem weiteren Ausführungsbeispiel der Erfindung ist ein Verfahren zum netzwerkbasierten Übermitteln eines Notrufs einer Notrufeinrichtung in einem Fahrzeug an Hilfseinheiten angegeben. Dabei weist das Verfahren die folgende Schritte auf: Aufbauen einer ersten Verbindung zwischen dem Fahrzeug und dem Server, Senden von Notrufdaten durch die Notrufeinrichtung an einen Server über die erste Verbindung, Verteilen der Notrufdaten durch den Server an die Hilfseinheiten über eine zweite Verbindung, Aufbauen einer Kommunikationsverbindung zwischen dem Fahrzeug und einer den Notruf annehmenden Hilfseinheit über den Server. Dabei ist die erste Verbindung eine dauerhafte IP-Verbindung und die Kommunikationsverbindung nutzt die bereits bestehende IP-Verbindung.According to a further exemplary embodiment of the invention, a method for network-based transmission of an emergency call of an emergency call device in a vehicle to auxiliary units is specified. In this case, the method comprises the following steps: establishing a first connection between the vehicle and the server, sending emergency call data by the emergency call device to a server via the first connection, distributing the emergency call data by the server to the auxiliary units via a second connection, establishing a Communication link between the vehicle and an auxiliary unit accepting the emergency call via the server. The first connection is a permanent IP connection and the communication connection uses the already existing IP connection.

Mittels dieses erfindungsgemäßen Verfahrens eines automatisierten Notrufs kann die sonst notwendige Aufbauzeit für die Kommunikationsverbindung zwischen dem Fahrzeug und dem Server eingespart werden. Dadurch kann eine schnellere Hilfeleistung erreicht und Rettungskosten eingespart werden.By means of this inventive method of an automated emergency call, the otherwise necessary setup time for the communication link between the vehicle and the server can be saved. As a result, faster assistance can be achieved and rescue costs can be saved.

Gemäß einem weiteren Ausführungsbeispiel der Erfindung weist die Kommunikationsverbindung einen ersten und einen zweiten Abschnitt auf. Dabei besteht der erste Abschnitt zwischen der Notrufeinrichtung und dem Server und der zweite Abschnitt besteht zwischen dem Server und der den Notruf annehmenden Hilfseinheit. Nach Annahme des Notrufs durch eine Hilfseinheit erfolgt das Aufbauen einer Voice over IP-Verbindung zumindest im ersten Abschnitt der Kommunikationsverbindung.According to a further embodiment of the invention, the communication link has a first and a second section. The first section is between the emergency call device and the server, and the second section is between the server and the auxiliary unit accepting the emergency call. After acceptance of the emergency call by an auxiliary unit, the establishment of a voice over IP connection takes place at least in the first section of the communication connection.

Es besteht somit die Möglichkeit, den zweiten Abschnitt der Kommunikationsverbindung zwischen dem Server und der Hilfseinheit sowohl mittels IP-Verbindung oder GSM-Verbindung als auch mittels jeder anderen möglichen physikalischen Datenübertragungsverbindung zu realisieren. Jedoch wird zwischen dem Fahrzeug und dem Server die immer noch bestehende IP-Verbindung genutzt, um eine Sprachverbindung wie beispielsweise eine Voice over IP-Verbindung in der bestehenden IP-Verbindung beschleunigt aufbauen zu können.It is thus possible to realize the second section of the communication connection between the server and the auxiliary unit both by means of IP connection or GSM connection as well as by means of any other possible physical data transmission connection. However, the still existing IP connection is used between the vehicle and the server in order to be able to accelerate the establishment of a voice connection such as a Voice over IP connection in the existing IP connection.

Gemäß einem weiteren Ausführungsbeispiel der Erfindung weist das Verfahren weiterhin die Schritte auf: Anpassen der Art der Notrufdaten und der Parameter der technischen Übermittlung der Notrufdaten an Zusatzinformation, wobei die Zusatzinformation mit der äußeren Umgebung des Fahrzeuges korrespondiert.According to a further embodiment of the invention, the method further comprises the steps of: adjusting the type of emergency call data and the parameters of the technical transmission of the emergency call data to additional information, wherein the additional information corresponds to the external environment of the vehicle.

Dabei besteht die äußere Umgebung des Fahrzeuges nicht nur durch die physischen Umweltbedingungen und meteorologischen Gegebenheiten, sondern auch die Informationslandschaft, die durch andere Fahrzeuge oder durch sendende Infrastrukturen gebildet wird. Dabei können die physischen Umweltbedingungen beispielsweise durch Sensoren einer Detektionseinheit der Notrufeinrichtung erfolgen. Mit anderen Worten wird die Menge an Daten und ihr Inhalt an die jeweilige Situation des Fahrzeuges angepasst. Beispielsweise kann über digitale Daten durch die Notrufeinrichtung ermittelt werden, welches Gefahrenpotential aufgrund der Streckendynamik vorliegt. Aber auch andere Daten der digitalen Karte können verwendet werden.In this case, the external environment of the vehicle is not only due to the physical environmental conditions and meteorological conditions, but also the information landscape that is formed by other vehicles or by transmitting infrastructures. The physical environmental conditions can be done, for example, by sensors of a detection unit of the emergency call device. In other words, the amount of data and its content is adapted to the particular situation of the vehicle. For example, it can be determined via digital data by the emergency call device, which danger potential exists due to the route dynamics. But other data of the digital map can be used.

Gemäß einem weiteren Ausführungsbeispiel der Erfindung ist die Art der Notrufdaten ausgewählt aus der Gruppe bestehend aus Datenformat, Inhalt der Daten und Aufbereitungsart der Daten. Ebenso sind die Parameter der technischen Übermittlung ausgewählt aus der Gruppe bestehend aus Datenrate, Frequenz einer Aktualisierung der Daten und Bandbreite der aufgebauten Verbindung.According to a further exemplary embodiment of the invention, the type of emergency call data is selected from the group consisting of data format, content of the data and format of the data. Similarly, the technical transmission parameters are selected from the group consisting of data rate, frequency of update of the data, and bandwidth of the established connection.

Dadurch kann das Versenden redundanter Information vermieden werden. Beispielsweise kann die Aktualisierung einer GPS-Position in ihrer Häufigkeit reduziert werden, falls eine Mindestgeschwindigkeit unterschritten wird.As a result, the sending of redundant information can be avoided. For example, the update of a GPS position can be reduced in frequency if a minimum speed is exceeded.

Gemäß einem weiteren Ausführungsbeispiel der Erfindung weist das Verfahren weiterhin die folgenden Schritte auf: Bereitstellen von Information über die Hilfseinheiten in Form einer Notrufdatenbank an den Server durch eine Zertifizierungsstelle und Zulassen einer Eintragung von freiwilligen Hilfseinheiten in die Datenbank durch eine Zertifizierungsstelle.According to a further embodiment of the invention, the method further comprises the following steps: providing information about the auxiliary units in the form of an emergency call database to the server by a certification authority and allowing a registration of voluntary auxiliary units in the database by a certification authority.

Zusätzlich zu den Hilfseinheiten, die bereits registriert sind, können sich freiwillige Hilfseinheiten bei der Zertifizierungsstelle registrieren und in die Notrufdatenbank eintragen lassen. Diese neuen, freiwilligen Hilfseinheiten erhalten dann ebenso wie die bisher eingetragenen Hilfseinheiten die Information über einen Unfall und können unter Umständen schneller zur Unfallstelle kommen und helfen. Damit kann eine schnellere Hilfeleitung erfolgen. Um Missbrauch dieser Information zu verhindern, muss die Zertifizierungsstelle den Bewerber kontrollieren und auf vorgeschriebene notwendige Kriterien prüfen. Erst danach ist eine Eintragung in die Notrufdatenbank mit entsprechend aktualisierter Übermittlung an den Server möglich. Im Falle eines Ecalls können die freiwilligen Hilfseinheiten beispielsweise Nothelfer in Betrieben, Ärzte, Militär bzw. pensionierte Militärangehörige sein. Für einen Bcall können beispielsweise freiwillige Hilfseinheiten durch lokale Werkstätten oder private Kfz-Fachleute oder auch Mitarbeiter von Kfz-Vereinen sein. Ebenso kann die zertifizierte Eintragung freiwilliger Hilfseinheiten für das kategorisierte Angebot von Informationsdiensten angewendet werden. So können beispielsweise Sportmöglichkeiten für Reisende durch Sportvereine, die Hilfseinheiten darstellen, bereitgestellt werden. Ebenso können Wegbeschreibungen zum Beispiel zu lokalen Sehenswürdigkeiten, von freiwilligen zusätzlichen Hilfsdiensten angeboten werden. Dabei kann durch die Zertifizierungsstelle sichergestellt werden, dass die Eintragung in den Server nicht missbraucht wird.In addition to the auxiliary units already registered, voluntary support units can register with the certification body and have them registered in the emergency database. These new, voluntary aid units then receive the information about an accident as well as the previously registered auxiliary units and can, under certain circumstances, come to the accident site faster and help. This can be done faster help. In order to prevent misuse of this information, the certification body must check the applicant and check for any necessary criteria. Only then is it possible to register in the emergency database with a correspondingly updated transmission to the server. For example, in the case of ecalls, the volunteer support units may be relief workers in factories, doctors, military or retired military personnel. For a Bcall can be, for example, voluntary auxiliary units by local workshops or private car experts or employees of motor vehicle associations. Likewise, the certified registration of voluntary auxiliary units may be used for the categorized supply of information services. For example, sports facilities for travelers can be provided by sports clubs, which are auxiliary units. Likewise, directions to local attractions, for example, can be offered by voluntary additional services. It can be ensured by the certification authority that the entry in the server is not abused.

Gemäß einem weiteren Ausführungsbeispiel ist ein Programmelement angegeben, das, wenn es auf einem Prozessor ausgeführt wird, den Prozessor anleitet, die oben angegebenen Schritte durchzuführen.According to a further embodiment, a program element is specified which, when executed on a processor, instructs the processor to perform the above steps.

Gemäß einem weiteren Ausführungsbeispiel ist ein computerlesbares Medium, auf dem ein Programmelement gespeichert ist, angegeben, das, wenn es auf einemAccording to a further embodiment, a computer-readable medium on which a program element is stored is indicated, which, when stored on a computer

Prozessor ausgeführt wird, den Prozessor anleitet, die oben angegebenen Schritte durchzuführen.Processor is instructing the processor to perform the above steps.

Dabei kann das Computerprogrammelement zum Beispiel Teil einer Software sein, die auf einem Prozessor der Notrufeinrichtung gespeichert ist. Ebenso kann das Computerprogrammelement in einer Steuereinheit oder einer Computereinheit verwendet werden, welche in Kombination mit der Notrufeinrichtung den automatisierten Notruf veranlasst und regelt. Weiterhin umfasst dieses Ausführungsbeispiel der Erfindung ein Computerprogrammelement, welches schon von Anfang an die Erfindung verwendet, sowie auch ein Programmelement, welches durch eine Aktualisierung (Update) ein bestehendes Programm zur Verwendung der Erfindung veranlasst.For example, the computer program element may be part of a software that is stored on a processor of the emergency call device. Likewise, the computer program element can be used in a control unit or a computer unit which, in combination with the emergency call device, initiates and regulates the automated emergency call. Furthermore, this embodiment of the invention comprises a computer program element, which already uses the invention from the beginning, as well as a program element, which causes an existing program for use of the invention by an update.

Weiterhin ist es möglich, dass alle in diesem Dokument erwähnten Daten mittels Medienkonvertierung verändert werden. Der Begriff Medienkonvertierung bezeichnet ganz allgemein die Überführung, Umwandlung oder Konvertierung einer Datei von einem Dateiformat in ein anderes. Das gilt für den Transfer von Daten zwischen unterschiedlichen Medien und Dateisystemen ebenso, wie für die Übertragung von Daten von einem Speichermedium auf ein anderes. Soll beispielsweise ein Notruf abgesetzt werden, kann die Steuereinheit auf die Detektionseinheit zurückgreifen und sich von der Detektionseinheit die aktuelle Fahrzeugposition mitteilen lassen. Hierfür weist die Detektionseinheit beispielsweise einen GPS-Empfänger auf.Furthermore, it is possible that all data mentioned in this document will be changed by means of media conversion. The term media conversion generally refers to the transfer, conversion or conversion of a file from one file format to another. This applies to the transfer of data between different media and file systems as well as for the transfer of data from one storage medium to another. If, for example, an emergency call is to be issued, the control unit can access the detection unit and let the detection unit communicate the current vehicle position. For this purpose, the detection unit, for example, a GPS receiver.

Weiterhin betrifft der Begriff Medienkonvertierung die Umwandlung von Daten zwischen visuellen, auditiven und textuellen Formaten, sowie Kombinationsformate derselben. Dabei können die medienkonvertierten Daten beispielsweise direkt an den von der Steuereinheit ausgewählten Empfänger übermittelt werden. Damit kann beispielsweise Adressinformation dem Benutzer einer digitalen Karte deutlich gemacht werden.Furthermore, the term media conversion refers to the conversion of data between visual, auditory and textual formats, as well as combination formats thereof. The media-converted data can be transmitted, for example, directly to the receiver selected by the control unit. Thus, for example, address information can be made clear to the user of a digital map.

Ergänzend sei darauf hingewiesen, dass "umfassend" und "aufweisend" keine anderen Elemente oder Schritte ausschließen und "eine" oder "ein" keine Vielzahl ausschließen. Ferner sei darauf hingewiesen, dass Merkmale oder Schritte, die mit dem Verweis auf eines der obigen Ausführungsbeispiele beschrieben worden sind, auch in Kombination mit anderen Merkmalen oder Schritten anderer oben beschriebener Ausführungsbeispiele der Erfindung verwendet werden können. Bezugszeichen in den Ansprüchen sind nicht als Einschränkung anzusehen.In addition, it should be noted that "comprising" and "having" do not exclude other elements or steps, and "a" or "an" do not exclude a multitude. It should also be appreciated that features or steps described with reference to any of the above embodiments may also be used in combination with other features or steps of other embodiments of the invention described above. Reference signs in the claims are not to be considered as limiting.

Im Folgenden werden mit Verweis auf die Figuren bevorzugte Ausführungsbeispiele der Erfindung beschrieben.In the following, preferred embodiments of the invention will be described with reference to the figures.

Kurze Beschreibung der Figuren:

  • Fig. 1 zeigt eine schematische Darstellung eines Notrufsystems gemäß einem Ausführungsbeispiel der Erfindung.
  • Fig. 2 zeigt eine schematische Darstellung einer Kommunikation zwischen Fahrzeugen und einer Infrastruktur gemäß einem Ausführungsbeispiel der Erfindung.
  • Fig. 3 zeigt eine Notrufeinrichtung mit einem Detektionssystem gemäß einem Ausführungsbeispiel der Erfindung.
  • Fig. 4 zeigt ein Flussdiagramm eines Verfahrens gemäß einem Ausführungsbeispiel der Erfindung.
Brief description of the figures:
  • Fig. 1 shows a schematic representation of an emergency call system according to an embodiment of the invention.
  • Fig. 2 shows a schematic representation of a communication between vehicles and an infrastructure according to an embodiment of the invention.
  • Fig. 3 shows an emergency call device with a detection system according to an embodiment of the invention.
  • Fig. 4 shows a flowchart of a method according to an embodiment of the invention.

Die Darstellungen in den Figuren sind schematisch und nicht maßstäblich.The illustrations in the figures are schematic and not to scale.

In den folgenden Figurenbeschreibungen werden für die gleichen oder ähnlichen Elemente die gleichen Bezugsziffern verwendet.In the following figure descriptions, the same reference numerals are used for the same or similar elements.

Fig. 1 zeigt ein Notrufsystem 113 mit einer Notrufeinrichtung 101 und einem Server 106. Dabei ist die Notrufeinrichtung für ein Fahrzeug zum netzwerkbasierten Übermitteln eines Notrufs an Hilfseinheiten 104 ausgeführt. Die Übermittlung erfolgt dabei direkt also ohne Weiterleitung des Notrufs durch eine Rettungsleitstelle mit Personen. Dabei umfasst die Notrufeinrichtung eine Netzwerkschnittstelle 102 und eine Sendeeinheit 103. Mittels der Netzwerkschnittstelle und der Sendeeinheit kann eine Verbindung 107 zu dem Server aufgebaut werden. Dabei ist die Verbindung 107 eine IP-Verbindung, die dauerhaft zwischen dem Fahrzeug und dem Server während eines Notrufs aufrechterhalten wird. Das Fahrzeug übermittelt über die IP-Verbindung die notwendigen Daten wie Position, Unfallschwere und beispielsweise Unfallzeitpunkt. Über den Server wird die Nachricht über den Notruf an alle Hilfseinheiten 104 mittels jeweiligen Verbindungen 114 zwischen dem Server und der Hilfseinheit versendet und dabei auch die relevanten Informationen übermittelt. Fig. 1 shows an emergency call system 113 with an emergency call device 101 and a server 106. In this case, the emergency call device for a vehicle for network-based transmission of an emergency call to auxiliary units 104 is executed. The transmission takes place directly so without forwarding the emergency call by a rescue center with persons. In this case, the emergency call device comprises a network interface 102 and a transmission unit 103. By means of the network interface and the transmission unit, a connection 107 can be established to the server. In this case, the connection 107 is an IP connection that is maintained permanently between the vehicle and the server during an emergency call. The vehicle transmits the necessary data such as position, accident severity and, for example, the time of the accident via the IP connection. Via the server, the message about the emergency call to all auxiliary units 104 is sent by means of respective connections 114 between the server and the auxiliary unit and also transmits the relevant information.

Nimmt eine Hilfseinheit den Notruf an, so wird eine Kommunikationsverbindung 108 zwischen der den Notruf annehmenden Hilfseinheit 105 und dem Fahrzeug 100 über den Server aufgebaut. Dabei kann die Verbindung 114 zwischen dem Server und den Hilfseinheiten beispielsweise eine IP-Verbindung oder auch eine GSM-Verbindung oder auch jede andere physikalische Verbindung zur Datenübertragung sein. Aufgrund der dauerhaft bestehenden IP-Verbindung 107 zwischen Fahrzeug und Server kann der erste Teil 109 der Kommunikationsverbindung 108 die bestehende IP-Verbindung nutzen und Aufbauzeiten sparen. Beispielsweise kann der erste Teil 109 als Voice over IP-Verbindung zwischen dem Server und Notrufeinrichtung 101 ausgeführt sein. Da kein Routing mehr durch den Server vorgenommen werden muss, erübrigt sich die Aufbauzeit der Sprachverbindung.If an auxiliary unit accepts the emergency call, a communication link 108 is established between the emergency call accepting unit 105 and the vehicle 100 via the server. In this case, the connection 114 between the server and the auxiliary units can be, for example, an IP connection or also a GSM connection or also any other physical connection for data transmission. Due to the permanently existing IP connection 107 between the vehicle and the server, the first part 109 of the communication connection 108 can use the existing IP connection and save setup times. For example, the first part 109 may be implemented as a Voice over IP connection between the server and the emergency call device 101. Since routing no longer has to be performed by the server, the setup time of the voice connection is unnecessary.

Es ist weiterhin in Fig. 1 eine Notrufdatenbank 111 in dem Server gezeigt, in welcher die Informationen über die Hilfseinheiten 104 gespeichert sind. Ebenso ist eine Zertifizierungsstelle 112 gezeigt, durch welche freiwillige, zusätzliche Hilfseinheiten nach einer qualifizierenden Prüfung durch die Zertifizierungsstelle in die Notrufdatenbank eingetragen werden können. Dabei können diese zusätzlichen Hilfseinheiten angeben, unter welchen Umständen sie bei einem Notruf benachrichtigt werden wollen. Entscheidende Parameter können hier beispielsweise Uhrzeit, Distanz zum Unfall, Straßentyp, auf dem der Unfall stattgefunden hat, oder Schwere des Unfalls sein. Durch die direkte Verbindung zu den Hilfseinheiten kann die Auswahl derjenigen Hilfseinheit, welche den Notruf annimmt, selbstständig durch die Hilfseinheit erfolgen. Eine unmittelbare und autarke Notrufannahme kann somit erfolgen. Damit können neben verkürzten Verbindungszeiten auch geringere Kosten und eine geringere Fehleranfälligkeit realisiert werden.It is still in Fig. 1 an emergency database 111 shown in the server, in which the information about the auxiliary units 104 are stored. Likewise, a certification authority 112 is shown, through which voluntary additional auxiliary units can be entered into the emergency database after a qualifying examination by the certification authority. These additional auxiliary units can indicate under what circumstances they want to be notified in the event of an emergency call. Crucial parameters may be, for example, time of day, distance to the accident, type of road on which the accident took place, or severity of the accident. Due to the direct connection to the auxiliary units, the selection of that auxiliary unit which accepts the emergency call can be made independently by the auxiliary unit. An immediate and self-sufficient emergency call can thus take place. In addition to shorter connection times, lower costs and a lower susceptibility to errors can be realized.

Fig. 2 zeigt eine Fahrzeug-zu-Fahrzeug-Kommunikation 206 und eine Fahrzeug-zu-Infrastruktur-Kommunikation 202 gemäß einem Ausführungsbeispiel der Erfindung. Dabei sind Fahrzeuge 100 gezeigt sowie eine Infrastruktur 201, die beispielsweise auch als Server, wie in Fig. 1 mit Bezugszeichen 106 gezeigt, ausgeführt sein kann. 201 kann aber ebenso eine Verkehrsinfrastruktur darstellen. Dabei sind Kommunikationseinheiten 203 in den Fahrzeugen gezeigt, die beispielsweise als Notrufeinrichtung wie in Fig. 1 mit 101 gezeigt, ausgeführt sein können. Die Kommunikationseinheiten sind zum Übermitteln von Daten zwischen einem ersten und einem zweiten Fahrzeug oder zwischen einem Fahrzeug und der Infrastruktur ausgeführt. Dabei kann jede Kommunikationseinheit eine Sendeeinheit, eine Speichereinheit und eine Recheneinheit aufweisen. Weiterhin kann die Speichereinheit zur Zuführung von Zusatzinformationen ausgeführt sein. Weiterhin kann die Recheneinheit zur Anpassung der Art der Daten und zur Anpassung technischer Parameter der Übermittlung der Daten auf Basis der Zusatzinformationen ausgeführt sein, wobei die Zusatzinformationen mit der äußeren Umgebung des ersten Fahrzeuges korrespondieren. Fig. 2 FIG. 12 shows vehicle-to-vehicle communication 206 and vehicle-to-infrastructure communication 202 according to one embodiment of the invention. In this case, vehicles 100 are shown and an infrastructure 201, for example, as a server, as in Fig. 1 shown with reference numeral 106 may be executed. But 201 can also be a transport infrastructure. In this case, communication units 203 are shown in the vehicles, for example, as an emergency call device as in Fig. 1 101 may be implemented. The communication units are configured to communicate data between a first and a second vehicle or between a vehicle and the infrastructure. In this case, each communication unit can have a transmitting unit, a memory unit and a computing unit. Furthermore, the memory unit can be designed to supply additional information. Furthermore, the arithmetic unit for adapting the type of data and for adapting technical parameters of the transmission the data is executed on the basis of the additional information, the additional information corresponding to the external environment of the first vehicle.

Weiterhin kann die Kommunikation 202 zwischen dem Fahrzeug und der Infrastruktur als IP-Verbindung 107 wie in Fig. 1 gezeigt, ausgeführt sein.Furthermore, communication 202 between the vehicle and the infrastructure may be as IP connection 107 as in FIG Fig. 1 shown to be executed.

Mit anderen Worten kann das Format der zu sendenden Daten über die Kommunikation 206 und 202 sowie die Datenrate an die jeweilige Situation des Fahrzeuges angepasst sein. Beispielsweise kann auf Basis einer digitalen Karte ermittelt werden, welches Gefahrenpotential für spezielle Situationen vorliegt. Daraufhin kann die Bandbreite der Kommunikationsverbindung 202 und 206 von den Kommunikationseinheiten 203 reduziert oder erhöht werden. Aber auch auf Basis von Sensorwerten einer Detektionseinheit, die sich im Fahrzeug befindet, kann der Datenverkehr angepasst werden. Die darauf zur Verfügung stehende Bandbreite kann für andere Kommunikationsaufgaben des Fahrzeuges verwendet werden.In other words, the format of the data to be transmitted via the communication 206 and 202 as well as the data rate can be adapted to the respective situation of the vehicle. For example, it can be determined on the basis of a digital map, which danger potential exists for special situations. Thereupon, the bandwidth of the communication link 202 and 206 may be reduced or increased by the communication units 203. But also on the basis of sensor values of a detection unit, which is located in the vehicle, the data traffic can be adjusted. The available bandwidth can be used for other communication tasks of the vehicle.

Fig. 3 zeigt ein System 300 mit einer Notrufeinrichtung 103 und einer Detektionseinheit 316. Zur erfindungsgemäßen Anpassung der Datenrate und des Datenformats an die jeweilige Situation des Fahrzeuges können Werte verschiedener Sensoren zu einer Situationsanalyse verwendet werden. Es kann beispielsweise ein Geschwindigkeitsmesser 301, ein Federwegsensor 302, eine ESP-Sensorik 303, ein optischer Detektor 304, ein Strahlsensor 305, eine Positionsbestimmungseinheit 306, eine Navigationseinheit 307, ein Richtungssensor 308, ein Wegstreckensensor 309 oder ein Lenkraddrehwinkelsensor 310 verwendet werden. Dabei ist eine Steuereinheit 317 gezeigt, die als CPU ausgeführt sein kann. Diese Steuereinheit ist in der Lage, die Anpassung des Datenverkehrs der Notrufeinrichtung 103 oder der Sendeeinheit (siehe Seite 16 oben) auf Basis der Messwerte zu regeln und steuern. In einem Speicher 318 können Messwerte abgelegt werden. Weiterhin ist mit 319 ein Monitor angegeben, auf welchem beispielsweise aktuelle Werte der Sensoren angezeigt werden können. Weiterhin ist eine Ausgabeeinheit 320 und eine Eingabeeinheit 321 als User Interface gezeigt. Ebenso kann ein Fahrerassistenzsystem 322 in dem System 300 verwendet werden. Eine Verschlüsselungseinrichtung 323 vermag dabei die Sicherheit der Kommunikation mit anderen Fahrzeugen oder Infrastruktureinrichtungen zu erhöhen. Mittels der Antenne 324 kann die IP-Verbindung, die dauerhaft aufrechterhalten werden kann zu dem Server aufgebaut werden. Fig. 3 shows a system 300 with an emergency call device 103 and a detection unit 316. For the inventive adaptation of the data rate and the data format to the respective situation of the vehicle, values of different sensors can be used for a situation analysis. For example, a speedometer 301, a spring travel sensor 302, an ESP sensor 303, an optical detector 304, a beam sensor 305, a position determination unit 306, a navigation unit 307, a direction sensor 308, a distance sensor 309, or a steering wheel rotation angle sensor 310 may be used. In this case, a control unit 317 is shown, which may be designed as a CPU. This control unit is able to regulate and control the adaptation of the data traffic of the emergency call device 103 or the transmission unit (see page 16 above) on the basis of the measured values. Measured values can be stored in a memory 318. Furthermore, a monitor is indicated at 319, on which, for example, current values of the sensors can be displayed. Furthermore, an output unit 320 and an input unit 321 are shown as a user interface. Likewise, a driver assistance system 322 may be used in the system 300. An encryption device 323 is able to increase the security of communication with other vehicles or infrastructure facilities. By means of the antenna 324, the IP connection, which can be maintained permanently, can be established to the server.

Fig. 4 zeigt ein Flussdiagramm gemäß einem Ausführungsbeispiel der Erfindung. In Schritt S1 wird eine erste Verbindung zwischen dem Fahrzeug und einem Server aufgebaut. In Schritt S2 werden Notrufdaten durch die Notrufeinrichtung an einen Server über die erste Verbindung gesendet. In Schritt S3 werden Notrufdaten durch einen Server an die Hilfseinheiten über eine zweite Verbindung verteilt, wobei das Aufbauen einer Kommunikationsverbindung zwischen dem Fahrzeug und einer den Notruf annehmenden Hilfseinheit über den Server durch Schritt S4 erfolgt. In Verfahrensschritt S5 wird eine Voice over IP-Verbindung zumindest im ersten Abschnitt der Kommunikationsverbindung aufgebaut. In Verfahrensschritt S6 werden die Art der Notrufdaten und / oder die Parameter der technischen Übermittlung der Notrufdaten an Zusatzinformation angepasst. In Schritt S7 wird Information über die Hilfseinheiten in Form einer Notrufdatenbank an den Server durch eine Zertifizierungsstelle bereitgestellt. Der Verfahrensschritt S8 beschreibt das Zulassen einer Eintragung von freiwilligen Hilfseinheiten in die Datenbank durch eine Zertifizierungsstelle. Fig. 4 shows a flowchart according to an embodiment of the invention. In step S1, a first connection is established between the vehicle and a server. In step S2, emergency call data is sent by the emergency call device to a server via the first connection. In step S3, emergency call data is distributed by a server to the auxiliary units via a second connection, wherein establishment of a communication connection between the vehicle and an emergency unit accepting the emergency call is made via the server through step S4. In method step S5, a voice over IP connection is established at least in the first section of the communication connection. In method step S6, the type of emergency call data and / or the parameters of the technical transmission of the emergency call data are adapted to additional information. In step S7, information about the auxiliary units in the form of an emergency call database is provided to the server by a certification authority. Method step S8 describes allowing a registration of voluntary auxiliary units in the database by a certification authority.

Claims (13)

  1. Emergency call device (101) for a vehicle (100) for the network-based transmission of an emergency call to assistance units (104), said emergency call device having:
    a network interface (102) for setting up a connection (107) to a server (106);
    a transmission unit (103) for transmitting emergency call data to the server via the connection;
    wherein the connection (107) is a permanent IP connection;
    wherein the network interface is also designed to set up a communication link (108) to an assistance unit via the server in the event of said emergency call being taken by said assistance unit; and
    wherein the communication link uses the already existing IP connection between the emergency call device and the server.
  2. Emergency call device according to Claim 1,
    wherein the communication link comprises a first (109) and a second (110) section;
    wherein the first section exists between the emergency call device and the server;
    wherein the second section exists between the server and the assistance unit (105) taking the emergency call; and
    wherein at least the first section of the communication link is a Voice-over-IP connection.
  3. Emergency call device according to one of Claims 1 and 2,
    wherein transmission of the emergency call to the assistance units does not require a public safety answering point; and
    wherein the assistance unit taking the emergency call is selected by the direct, independent taking of the emergency call by the assistance unit.
  4. Emergency call device according to one of the preceding claims,
    wherein the emergency call data are selected from the group comprising the current and historical position of the vehicle, the nature of an accident, the seriousness of an accident, the time of an accident, the number of occupants, individual information from the occupants, biometric information, information relating to a technical fault, error diagnosis information, and measured values from sensors in the vehicle.
  5. Emergency call device according to one of the preceding claims,
    wherein the nature of the emergency call data and the parameters of the technical transmission of the emergency call data have been customized to supplementary information; and
    wherein the supplementary information corresponds to the external surroundings of the vehicle.
  6. Emergency call device according to Claim 5,
    wherein the nature of the emergency call data is selected from the group comprising data format, content of the data, and nature of the conditioning of the data; and
    wherein the parameters of the technical transmission are selected from the group comprising data rate, frequency of update for the data, and bandwidth of the connection which has been set up.
  7. Emergency call system (113) for vehicles for the network-based transmission of an emergency call, said emergency call system having:
    an emergency call device according to one of Claims 1 to 6;
    a server;
    wherein the server is designed to forward the emergency call to all the assistance units registered on the server.
  8. Use of an emergency call device according to one of Claims 1 to 6 in a vehicle.
  9. Vehicle having an emergency call device according to one of Claims 1 to 6.
  10. Method for the network-based transmission of an emergency call from an emergency call device in a vehicle to assistance units, said method having the following steps:
    a first connection is set up between the vehicle and a server (S1);
    emergency call data are sent by the emergency call device to a server via the first connection (S2);
    the emergency call data are distributed to the assistance units by the server via a second connection (S3) ;
    a communication link is set up between the vehicle and an assistance unit, taking the emergency call, via the server (S4);
    wherein the first connection is a permanent IP connection; and
    wherein the communication link uses the already existing IP connection.
  11. Method according to Claim 10;
    wherein the communication link comprises a first and a second section;
    wherein the first section exists between the emergency call device and the server;
    wherein the second section exists between the server and the assistance unit taking the emergency call; said method also having the following step:
    a Voice-over-IP connection is set up at least in the first section of the communication link (S5).
  12. Method according to one of Claims 10 and 11, also having the following steps:
    the nature of the emergency call data and the parameters of the technical transmission of the emergency call data are customized to supplementary information (S6);
    wherein the supplementary information corresponds to the external surroundings of the vehicle.
  13. Method according to one of Claims 10 to 12, also having the following steps:
    information about the assistance units is provided for the server in the form of an emergency call database (111) by a certification point(112) (S7);
    and
    voluntary assistance units are approved for entry into the database by a certification point (S8).
EP08787510A 2007-08-29 2008-08-27 Emergency calling device for a vehicle Active EP2186078B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007040972 2007-08-29
PCT/EP2008/061214 WO2009027427A1 (en) 2007-08-29 2008-08-27 Emergency calling device for a vehicle
DE102008039831A DE102008039831A1 (en) 2007-08-29 2008-08-27 Emergency call device for a vehicle

Publications (2)

Publication Number Publication Date
EP2186078A1 EP2186078A1 (en) 2010-05-19
EP2186078B1 true EP2186078B1 (en) 2011-05-04

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EP08787510A Active EP2186078B1 (en) 2007-08-29 2008-08-27 Emergency calling device for a vehicle

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US (1) US8331338B2 (en)
EP (1) EP2186078B1 (en)
AT (1) ATE508448T1 (en)
DE (3) DE102008035992A1 (en)
ES (1) ES2365292T3 (en)
WO (1) WO2009027427A1 (en)

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Also Published As

Publication number Publication date
ATE508448T1 (en) 2011-05-15
EP2186078A1 (en) 2010-05-19
WO2009027427A1 (en) 2009-03-05
DE102008039831A1 (en) 2009-03-05
US20100284382A1 (en) 2010-11-11
DE102008035992A1 (en) 2009-03-05
DE502008003444D1 (en) 2011-06-16
US8331338B2 (en) 2012-12-11
ES2365292T3 (en) 2011-09-28

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