A SYSTEM AND A METHOD FOR PROVIDING A COMMUNICATION LINK

Abstract: A system and a method for providing a communication link between a central station (11) and a remote mobile or stationary object (13) comprises transmitting and receiving communication means (13) comprises transmitting and receiving communication means (14, 15) for speech and data transmission. The communication link copmrises a speech transmission link between the central station (11) and the remote object (13). The communication link also comprises a data transmission link between the remote object and the central station which is reouted via a centralized communication and database server (10) for handling operator and/or object related information. The method comprises the steps of establishing a speech connection between the central station (11) and the remote object (13), and simulatneously establishing data connections between the remote object (13) and the communication and database server (10) as well as between the central station and the communication and database server.

Description: C . 13264 /KS , 2000-02-25 Title : A system and a method for providing a communication link TECHNICAL FIELD The present invention relates to the field of wireless communication, and more precisely, to a system and a method for providing a communication link between a central station and a remote mobile or stationary object by means of transmitting and receiving communication means for speech and data transmission. The invention also relates to a use of such a system. BACKGROUND OF THE INVENTION US 5890061 discloses an emergency message system for- a mobile vehicle for communication with a response centre. A cellular transceiver has a restricted and an unrestricted operation mode. The restricted operating mode is selectable by a user to establish communication links that are permitted during normal operation, whereas the unrestricted operation mode is activated prior to initiating a request for assistance in case of emergency, thereby allowing a more reliable connection over a cellular telephone network. Further, emergency message systems for mobile vehicles are disclosed in US 5781101, US 5687215, US 5686910 and US 5572204, respectively. A user can request emergency or roadside assistance from a response service centre by activating a button in the vehicle. The global positioning system is used to continuously store the vehicle location. A cellular telephone network is used to contact the service centre and to transfer via modem, a data string containing information to assist the service centre in acting on the request. The various systems comprise additional means either for storing system information, for sending a termination tone to the vehicle upon satisfactory completion of the request, for initiating an automatic call-in to the service centre if a predetermined time has elapsed since the last connection and for initiating a second call to a different number if a first attempt to contact the response centre has been unsuccessful, respectively. These prior art systems are not very well suited to environments and situations where a vehicle travels across a border from one country to another. Usually, this involves the transfer of responsibility from one service centre operator to another. A large amount of functionality is needed for this transfer to function smoothly, without risk of interrupting service. For example, a customer database will have to be maintained and updated at every customer service station. It is a problem for a large number of customer service station operators to allocate resources for up grading and scaling up the telematic infra-structure in response to a growing number of service clients. Also, it will be difficult to add or remove ' services to this environment where different service operators may have different types of system platforms with completely different interfaces to service clients. It would be desirable for a service client to have access to the same level of service, and via a transparent interface, when travelling across a continent, for example Europe. SUMMARY OF THE INVENTION What are needed are therefore a system and a method for providing a communication link between a central station and a remote mobile or stationary object that avoids the above described disadvantages. According to the invention, this is achieved by providing the communication link with both a speech transmission link between the central station and the operator of the remote object, as well as a data transmission link between the remote object and the central station which is routed via a centralized communication and database server for handling operator and/or object related information. This system and method is especially suitable and provided for exchange of information, data and even software programs, as well as for voice communication between cars, trucks boats or other vehicles on one hand and at least one central station on the other hand. This central station may for example be a center or service station of a manufacturer, a head station for guiding or operating the vehicles, or for providing assistance in case of emergency or accident, respectively. Further, the system and method is suitable and provided for communication with facilities and plants in remote areas which are operated, controlled, observed or monitored from one or more of those central stations. According to an advantageous embodiment of the invention, the communication and database server comprises a communication server with functionality for handling operator and object identification, an operator and object information database as well an application server with functionality for making relevant information available to the central station. According to another embodiment of the invention, the application server is provided with functionality for updating operator and object information. Preferably, the communication links are established via a cellular communication network or a satellite communication network. In a particular embodiment of the invention, the central station is a customer service center and the remote object is a vehicle, a boat, a plane or a remote facility or plant. This vehicle, boat or plane may be provided with a Global Positioning System, GPS, for providing information regarding its position. The method according to the invention is characterized in the steps of establishing a speech connection between the central station and the remote object, and simultaneously establishing data connections between the remote object and a communication and database server as well as between the central station and said communication and database server. According to a preferable embodiment of the method according to the invention, it includes the steps of locating the position of the remote object, controlling the functional and operational status of the remote object and its operator, and adapting the response to the type of service requested. According to still another embodiment of the method, it includes the steps of providing the communication and database server with the functionality for adding, removing and updating services. BRIEF DESCRIPTION OF THE DRAWINGS The invention will be further described in the following, in a non-limiting way with reference to the accompanying drawings in which: FIG 1 is a schematic view showing elements of a system according to the invention, including remote objects, a public switched telephone network, a customer service center and a telematics enterprise manager, and FIG 2 illustrates in more detail the relationship of the telematics enterprise manager and different customer service centers. DETAILED DESCRIPTION OF THE INVENTION Fig 1 shows the major components of a preferred embodiment of the inventive system and its environment. It comprises a customer service center server (CSCS) 10 and a customer service center (CSC) 11 with an operator 12. At least one vehicle 13, vessel or a plane, as well as one or more stationary objects like a remote facility or plant are able to communicate with the CSCS 10 and the CSC 11 via a cellular communication network 14 like GSM (European standard) or AMPS (US standard) and/or a satellite communication network 15, both for voice communication, and for exchange of information data, each in both directions. Further, even software programs may be transmitted if necessary. The vehicle position may be detected by means of the global positioning system (GPS) 16. An emergency assistance vehicle 17 and a roadside assistance vehicle 18 communicate with the CSC 11 in a similar manner or in any other way and are activated by the CSC in response to an assistance request from the vehicle 13. In general, the system provides telephone services and emergency and technical assistance using both cellular and satellite communication. This allows for a reliable connection both between the vehicle and the CSCS and the vehicle and the CSC, as well as between the CSCS and the CSC. For example, the speech link between the vehicle and the CSC may be used as a backup for transmission of data via DTMF, e.g. in case of an interrupt of the data transmission link between the vehicle and the CSCS. The above-described system can automatically handle emergency situations, remote diagnostics, and maintenance and command to said vehicle 13. Further, a vehicle driver or operator of a remote facility can manually request assistance or trigger an emergency signal to the CSC and the CSCS, and additionally, the vehicle or remote facility can automatically inform the CSC and the CSCS in case of emergency, malfunction or for other reasons. All these exchange of data, voice and information (and even software) is conducted with high reliability due to the use of both cellular and satellite communication. The actual position of the vehicle is evaluated by means of the global positioning system. The relationship between the customer service station server (CSCS) 10 and a number of individual customer service centers (CSC) 11 is shown in Fig. 2. The CSCS is provided with a communication server 19 for handling data communication via cellular or satellite communication networks 20, from a service system client vehicle 13 or a remote facility. A service request message from the vehicle 13 or the remote facility is transferred to a functionality application server 21 who activates relevant service functionality corresponding to a customer service subscription. This process involves retrieval of relevant information data from a customer and vehicle database 22. The retrieved information data is routed by a central service center manager 11 to the respective local CSC operator 11a which has initially been selected as the most suitable for responding to the service request message from the customer, and which simultaneously is linked via a separate speech link to the customer, either by means of a cellular or a satellite communication network. Thus, the CSCS 10 supplies the selected local CSC 11a with all customer and vehicle information needed for responding to the service request message. For example, this information may include customer address, vehicle registration number, vehicle type and specifications, a diagnostic report like engine status and brake status or malfunction, as well as the GPS position data of the vehicle. This information may be used by the CSC for adapting its response to the service request message, so that vehicle maintenance and repair may be performed with accuracy. The customer and vehicle database 22 may receive new vehicle data from a vehicle dealer 23 and new customer subscription data from a customer 24, for example via a World Wide Web server 25. Each customer service center 11 may represent a national service center operator which is provided with a database that may include relevant national level data, e.g. maps, local roadside traveler service, traffic jam information, ferry operator information and similar information that is vital to a traveler. Billing information to the customer may be sent from the CSC 11 via the functionality application server 21 and the customer and vehicle database 22 to a billing server 26. The above described system offers the possibility for the functionality application server 21 to retrieve information from or send command to any module in the vehicle 13 connected to the internal vehicle data bus or network. These reports and information can be stored by the customer and vehicle database 22 and be used for vehicle maintenance and repair. The above-described system may be automatically activated by means of at least one sensor, which for example detects an air-bag deployment. Also, the service subscription can be activated by an alarm in case of theft. A conflict concerning simultaneous execution of several such services is handled automatically by the functionality application server 21 by assigning and affecting a priority to each service type. Preferably, an air-bag deployment notification has the highest priority. If for example a driver asks for roadside assistance, the roadside assistance service of the system is activated. If subsequently the driver or a sensor signals an emergency, the roadside assistance is deactivated and the emergency assistance service is activated. If then an accident occurs, the emergency assistance service is deactivated and an air-bag deployment notification is activated. The driver of a vehicle 13 can request service in any case. If he or she is lost, vehicle position is reported using GPS controller, and navigational information is provided by voice or data communication. If the vehicle has broken down, remote vehicle diagnostics may be performed, vehicle position is reported using GPS and breakdown mechanic and roadside assistance is informed. These are only a few examples of possible assistance the above-described system may offer. The inventive system manages cellular communication and satellite communication as a backup when no cellular network is currently available. The inventive system is modular and can be customized according to the needs. Possible applications concern any critical object in remote areas and which is accessible with difficulties. The object may for example be a water pump in a desert, an electricity generator in the mountains or a navigation beacon on an island. The object can send an equipment diagnostic report periodically and offer the possibility for a remote user to retrieve information from or send commands to any module of the equipment connected to the internal data bus or network. These reports and information can be stored by the functionality application server and be used for the equipment maintenance and repair. In case of a major problem detected by a sensor, the actual problem and equipment status can be reported. Data messages between the vehicle 13 and the CSCS 10 as well as between the CSCS 10 and the CSC 11, preferably has a standard format like for example Global Automotive Protocol for Telematics Standard (GATS) . The data message must contain at least one service identifier (code) for selecting the requested service. The modular architecture of the inventive system makes it applicable to both mobile vehicles and static equipment and even small airplanes. The invention is not limited to the above-described embodiments, but several modifications are possible within the scope of the following claims.

Claims: CLAIMS 1. A system for providing a communication link between a central station (11) and a remote mobile or stationary object (13) by means of transmitting and receiving communication means (14, 15) for speech and data transmission, c h a r a c t e r i z e d in that the communication link comprises both a speech transmission link between the central station (11) and the operator of the remote object (13) , as well as a data transmission link between the remote object and the central station which is routed via a centralized communication and database server (10) for handling operator and/or object related information. 2. A system according to claim 1, c h a r a c t e r i z e d in that the communication and database server (10) comprises a communication server (19) with functionality for handling operator and object identification, an operator and object information database (22) as well an application server (21) with functionality for making relevant information available to the central station (11) • 3. A system according to claim 2, c h a r a c t e r i z e d in that the application server (21) is provided with functionality for updating operator and object information. 4. A system according to any one of claims 1-3, c h a r a c t e r i z e d in that the communication links are established via a cellular communication network (14) or a satellite communication network (15) . 5. A system according to claim 4, c h a r a c t e r i z e d in that the central station (11) is a customer service center and the remote object (13) is a vehicle, a boat, a plane or a remote facility or plant. 6. An apparatus according to claim 5, c h a r a c t e r i z e d in that the vehicle, boat or plane (13) is provided with a Global Positioning System, GPS (16) , for providing information regarding its position. 7. Use of a system according to anyone of claims 1-6 for activating a service center response to a vehicle service request call. 8. A method for providing a communication link between a central station (11) and a remote mobile or stationary object (13) , c h a r a c t e r i z e d in the steps of establishing a speech connection between the central station (11) and the remote object (13), and simultaneously establishing data connections between the remote object and a communication and database server (10) as well as between the central station and said communication and database server (10) . 9. A method according to claim 8, c h a r a c t e r i z e d in the steps of locating the position of the remote object (13) , controlling the functional and operational status of the remote object and its operator, and adapting the response to the type of service requested. 10. A method according to any one of claims 8-9, c h a r a c t e r i z e d in the steps of providing the communication and database server (10) with the functionality for adding, removing and updating services.

Inventors: BENGTSSON ANDERS, GUDMUNDSSON STEFAN, SENA MICHAEL, BENGTSSON, ANDERS, GUDMUNDSSON, STEFAN, SENA, MICHAEL
Applicants: BENGTSSON ANDERS, GUDMUNDSSON STEFAN, SENA MICHAEL, VOLVO TEKNISK UTVECKLING AB, BENGTSSON, ANDERS, GUDMUNDSSON, STEFAN, SENA, MICHAEL
Application year: 2001
Main classification: G08B25
IPC codes: B60R25, H04W4, H04W64