DE102015214565B4 - Telematic device and method for operating this - Google Patents

Abstract

The invention relates to a telematics device for reading and / or feeding data via an OBD interface in a motor vehicle and for forwarding the data by means of a mobile radio connection, wherein an OBD connector module in the OBD interface of the motor vehicle can be inserted, wherein a transmission module (1 ), which is connectable via a radio link with the OBD connector module for data exchange, wherein the transmission module (1) comprises a mobile radio module, by which a connection can be made in a mobile network, wherein the transmission module (1) connectable to an electrical system socket of the motor vehicle is and can be supplied with voltage via this vehicle power socket. Moreover, the invention relates to a method for operating the telematics device.

Description

Technical area

The invention relates to a telematics device for reading and / or feeding data via an OBD interface in a motor vehicle and for forwarding the data by means of a mobile radio connection, wherein an OBD connector module in the OBD interface of the motor vehicle can be inserted. Moreover, the invention relates to a method for operating the telematics device.

State of the art

In modern motor vehicles, a so-called on-board diagnostic interface, hereinafter referred to as OBD interface, is provided, which allows access to the data bus of the motor vehicle and thus access to relevant real-time and diagnostic information. To be able to display and evaluate the data, a device is needed that can be coupled to the standardized OBD interface and that can forward the data to a display unit and / or a processing unit.

For this purpose, so-called OBD dongle are known on the market, which have a standardized plug, which can be plugged into the OBD interface. To transmit the data OBD dongles are known which have a built-GSM mobile communication unit. Access to the mobile network allows the data to be forwarded to an evaluation unit or display unit arranged in the vehicle or at any point outside the vehicle.

A disadvantage of such devices is in particular that the integration of GSM mobile communication units leads to an increase in volume of the OBD dongle, whereby an inadmissible exceeding of the usually available space is achieved. Such an OBD dongle can no longer be arranged under the existing cover flap of the OBD interface so that it protrudes into the passenger compartment. In particular, with an arrangement of the OBS interface in the driver's footwell, this results in a considerably increased risk of injury in the event of an accident.

Alternatively, OBD dongle are known, which have an integrated interface for communication according to the Bluetooth standard. Although these are space-saving, they require a transmitting unit to transmit the data. This is regularly formed in the applications known in the art by a mobile phone or a smartphone. A disadvantage of these solutions is in particular that a data transfer is possible only with entrained, charged and connected mobile phone.

From the US 2013/0246135 A1 a telematics device according to the preamble of claim 1 is known. The US 2012/0094657 A1 also shows a known telematics device.

Presentation of the invention, object, solution, advantages

It is the object of the present invention to provide a telematics device, which allows both the reading and / or feeding of data via the OBD interface as well as the transfer of data via a connection in a mobile network. Furthermore, in particular the size of the OBD dongle should be particularly small and be a permanent independent of a mobile phone entrained connection in a mobile network. In addition, it is the object of the invention to provide a method for operating the telematics device.

The object with regard to the telematics device is achieved by a telematics device having the features of claim 1.

An embodiment of the invention relates to a telematics device for reading and / or feeding data via an OBD interface in a motor vehicle and for forwarding the data by means of a mobile radio connection, wherein an OBD connector module in the OBD interface of the motor vehicle can be inserted, wherein a transmission module is provided, which is connectable via a radio link with the OBD connector module for data exchange, wherein the transmission module has a mobile module through which a connection can be made in a mobile network, the transmission module with an electrical system socket of the motor vehicle is connected and via this electrical outlet with a Voltage is supplied.

The telematics device consists of two separate elements that have no physical connection through cables or similar elements. The OBD connector module has a standardized interface that can be plugged into the OBD interface of the motor vehicle. In addition to this interface, the OBD connector module has a radio interface that uses, for example, the Bluetooth standard. Via this radio interface, a data connection to the transmission module can be established. As an alternative to a Bluetooth connection, a different radio standard can also be provided. The OBD connector module has for connection to the OBD interface of the motor vehicle in particular a compatible with the OBD interface connector.

The transmission module is a unit detached from the OBD connector module, which unit can be arranged in the interior of the motor vehicle. Preferably, the transmitting unit is plugged directly into a vehicle electrical outlet. This may particularly preferably be formed by the cigarette lighter. The insertion of the transmission module in the cigarette lighter is particularly advantageous, as this the transmission module is conveniently located within the reach of the driver. The operation of the transmitter module on any existing keys is favored by this arrangement.

Data can be obtained from the data bus of the motor vehicle continuously via the OBD plug module, which allow, for example, condition monitoring of the vehicle. It is also possible to carry out a diagnosis of the motor vehicle via the data obtained. Likewise, data sent to the OBD connector module may also be transferred to the data bus of the motor vehicle via the OBD interface.

Via the transmission module, data can be sent out of the motor vehicle and / or data can be received. Accordingly, it is also foreseeable that settings in the motor vehicle are changed by the OBD connector module according to specifications from the outside.

The invention is characterized in that the transmitter module has a plug standardized according to DIN ISO 4165 or has a connector standardized according to SAE J563. A connector according to one of these two standards is particularly advantageous because these standards define the two most commonly used electrical sockets.

It is particularly advantageous if the spatial extent of the OBD connector module along the insertion direction of the OBD connector module is less than 15 mm, wherein the expansion is preferably less than 9 mm.

In order to produce the smallest possible space requirement, the extent of the OBD connector module along its plug-in direction is limited. Particularly preferred is an extension which is smaller than 9 mm, since then the OBD connector module is designed so compact that the OBD connector module fits in the inserted state under the often provided covers the OBD interfaces in motor vehicles.

It is also advantageous if the radio link between the OBD connector module and the transmission module can be generated using the Bluetooth standard. The Bluetooth standard is particularly advantageous because it is widely used and a variety of electronic devices uses the Bluetooth standard. This makes a connection with other devices particularly easy. In addition, the stability of the radio connection is very good and it is a data transfer even over medium distances away.

It is also preferable if the transmitter module has an actuatable button, the operation activating a preprogrammed sequence. In particular, the button can also be illuminated and designed both as a button and as a switch. It is particularly preferred if the triggered sequence is formed, for example, by the transmission of data or by establishing a voice connection.

Moreover, it is advantageous if the operable button along the insertion of the transmitter module is actuated in the electrical system socket. This is advantageous to ensure easy operation.

Furthermore, it is advantageous if a wireless connection, preferably a Bluetooth connection, can be produced by the transmission module to a hands-free device installed in the motor vehicle, wherein a voice connection can be established by the transmission module. This is particularly advantageous in order to realize additional functions, such as telephone-based additional services, without additional hardware costs. A telephone-based additional service can be, for example, an emergency call that is sent to an emergency call center or another predefinable subscriber.

It is also expedient if the transmission module has a sensor for detecting an accident. Such a sensor may be particularly preferably formed by an acceleration sensor.

Moreover, it is advantageous if the transmission module has a satellite positioning module. This allows the accurate determination of a position of the motor vehicle.

Furthermore, it is expedient if the transmission module has a WLAN interface for generating a data connection in the mobile radio network. This is advantageous in order to continue to offer additional services. In particular, in the course of progressive networking, it is advantageous to offer a simple connection for electronic devices that have a WLAN interface.

It is also advantageous if the OBD connector module and / or the transmission module has an encryption chip, by means of which the transmitted data can be encrypted. This is particularly advantageous to ensure that data transfer is secure and no unauthorized third party access gets to those coming from the motor vehicle or going to the motor vehicle data.

The object with regard to the method is achieved by a method having the features of claim 12.

An embodiment of the invention relates to a method, wherein a radio link is generated between the OBD connector module and the transmission module, wherein continuously or at predetermined evaluation times data of the motor vehicle via the OBD connector module are transmitted to the transmission module and the data from the transmission module by means of a cellular connection a memory unit and / or an evaluation unit are transmitted.

Such a method is particularly advantageous for sending data from the motor vehicle via the transmission module to a memory unit and / or an evaluation unit. A memory unit and / or an evaluation unit can be formed, for example, by a central data center, to which the data is transmitted. Also a transfer to a private PC or another computer is possible. The OBD connector module is designed to save space and has a connector for contacting the OBD interface of the motor vehicle only via a transmitting unit that establishes a connection to the transmission module of the telematics device. The sending module may eventually forward the data to the destination via a cellular connection.

It is also expedient if an emergency call is triggered by the pressing of a button on the transmitter module or by the detection of an accident by a sensor, wherein during the emergency call a predefined data packet is sent via the mobile network to a receiver and / or a voice connection to a predefined Receiver is generated.

The automatic dispatch of a predefined data packet or the generation of a voice connection in the event of a detected accident is particularly advantageous in order to be able to quickly provide assistance to the occupants of the motor vehicle. In particular, if the inmates are unconscious, sending a data packet is particularly helpful. Such a predefined data packet can be constructed, for example, according to the EU-wide standard "eCall" or the "ERA Glonass" used in Russia.

Moreover, it is advantageous if the voice connection is made using a Bluetooth-connected hands-free device in the motor vehicle. This is advantageous because Bluetooth is a widespread transmission standard in electronic devices and thus high compatibility can be achieved. It can be made in this way a voice connection without the OBD connector module or the transmission module itself would have to have a microphone or a speaker.

It is also preferable if the transmission module establishes a data connection to a mobile radio network, wherein the WLAN interface of the transmission module forms an access point for further electronic media. This is advantageous in order to generate a so-called "hot spot" for mobile use. This allows, for example, the occupants to create a data connection with their WLAN-enabled devices.

Advantageous developments of the present invention are described in the subclaims and in the following description of the figures.

Brief description of the drawings

In the following the invention will be explained in detail by means of embodiments with reference to the drawings. In the drawings show:

1 an illustration of the transmission module, as provided in the telematics device according to the invention,

2 a block diagram illustrating a first application of the telematics device, and

3 a block diagram illustrating a second application of the telematics device.

Preferred embodiment of the invention

The 1 shows an illustration of a transmission module 1 as used in the telematics device according to the invention. The transmission module 1 has a button 2 on, which can be additionally illuminated. At the opposite end are opposite contacts 3 shown, which serve for electrical contacting of the transmitter module by a vehicle power socket. The contacts 3 are in the radial direction of the transmitter module 1 from. In the axial direction protrudes from the transmitter module 1 another electrical contact 4 out, which is also the electrical contact of the transmitter module 1 serves.

The contacts 3 and 4 form with the shape of the transmitter module 1 preferably a standardized interface for the electrical contacting and the attachment of the transmitter module in a vehicle electrical outlet. Such an interface may be, for example, the cigarette lighter or other electrical outlet in the vehicle.

The button 2 is actuated in the axial direction. Inside the transmitter module 1 At least one mobile radio unit is provided which allows a connection to a mobile radio network. All common mobile radio standards, such as LTE, UMTS or GSM, can be used here. Furthermore, in the transmission module 1 preferably provided an encryption chip for encrypting the data sent. In addition, a sensor, which is designed in particular for the detection of accidents, in the transmission module 1 be arranged.

The transmission module can be designed in many ways, in particular with regard to its optical appearance. The picture of the 1 is exemplary.

The 2 shows a first application in which the telematics device can be used. In block 5 a radio link is created between the OBD connector module and the transmitter module. This can be generated, for example, as a Bluetooth connection. In the block 6 Data that has been read out of the motor vehicle via the OBD connector module is transmitted to the transmission module by the OBD connector module. In this case, both the OBD connector module and the transmission module are arranged within the motor vehicle.

In the block 7 For example, the data that was previously encrypted via the integrated encryption chip, if necessary, is forwarded via a mobile radio connection to a memory unit and / or an evaluation unit.

This application corresponds to the normal operation during which data are read out by the motor vehicle and sent to a central location for data storage and data evaluation. Based on the data monitoring of the motor vehicle can take place, for example, to detect defects and malfunctions early on. In addition, commands can also be transmitted in the reverse direction to the motor vehicle.

3 shows an alternative application. This alternative use case, for example, corresponds to the discontinuation of an emergency call as a result of an accident. In block 8th if the button of the transmitter module is pressed or an integrated sensor, for example an acceleration sensor, has detected an accident. This represents the start signal for this application.

The following is in the block 9 generates a Bluetooth connection to a carried in the car headset or handsfree. This happens, for example, after a sensor has detected an accident or after the button of the transmitter module has been pressed.

In the block 10 Finally, a predefined data packet containing, for example, the GPS coordinates, forwarded via the transmission module using the mobile network to a predefined emergency center. For example, the standardized methods "eCall" in the EU or "ERA Glonass" in Russia can be used for this purpose. Alternatively or additionally, in block 10 also be established a voice connection to an emergency reception. If the occupant is still able to do so after an accident, or if there is only a breakdown, the inmate can then speak with a person at the emergency reception. In this way, targeted help can be arranged.

The embodiments of the 1 to 3 In particular, they have no restrictive character and serve to clarify the inventive concept.

LIST OF REFERENCE NUMBERS

1

transmitter module

2

stud

3

electric contact

4

electric contact

5

block

6

block

7

block

8th

block

9

block

10

block

Claims (15)

Telematic device for reading and / or feeding data via an OBD interface in a motor vehicle and for forwarding the data by means of a mobile radio connection, wherein an OBD connector module in the OBD interface of the motor vehicle can be inserted, wherein a transmission module ( 1 ) is provided, which is connectable via a radio link with the OBD connector module for data exchange, wherein the transmission module ( 1 ) has a mobile radio module, by means of which a connection can be produced in a mobile radio network, characterized in that the transmission module ( 1 ) is connectable to a vehicle power socket of the motor vehicle and can be supplied with a voltage via this vehicle power socket, and the transmission module ( 1 ) has a connector standardized according to DIN ISO 4165 or has a connector standardized to SAE J563. Telematics device according to claim 1, characterized in that the spatial extent of the OBD connector module along the insertion direction of the OBD connector module is smaller than 15 mm, wherein the expansion is preferably less than 9 mm. Telematics device according to one of the preceding claims, characterized in that the radio link between the OBD connector module and the transmission module ( 1 ) is producible using the Bluetooth standard. Telematic device according to one of the preceding claims, characterized in that the transmission module ( 1 ) an operable button ( 2 ), wherein the actuation activates a preprogrammed sequence. Telematic device according to one of the preceding claims, characterized in that the actuatable button ( 2 ) along the insertion direction of the transmission module ( 1 ) Can be actuated in the electrical system socket. Telematics device according to one of the preceding claims, characterized in that the transmission module ( 1 ), a radio link, preferably a Bluetooth connection, can be produced to a speakerphone installed in the motor vehicle, wherein by the transmission module ( 1 ) A voice connection can be established. Telematic device according to one of the preceding claims, characterized in that the transmission module ( 1 ) has a sensor for detecting an accident. Telematic device according to one of the preceding claims, characterized in that the transmission module ( 1 ) has a satellite positioning module. Telematic device according to one of the preceding claims, characterized in that the transmission module ( 1 ) has a WLAN interface for generating a data connection in the mobile network. Telematics device according to one of the preceding claims, characterized in that the OBD connector module and / or the transmission module ( 1 ) has an encryption chip by which the transmitted data is encrypted. Method for operating a telematics device according to one of the preceding claims, wherein between the OBD plug-in module and the transmission module ( 1 ) a radio link is generated, wherein continuously or at predeterminable evaluation times data of the motor vehicle via the OBD connector module to the transmission module ( 1 ) and the data from the transmission module ( 1 ) are transmitted by means of a mobile radio connection to a memory unit and / or an evaluation unit, characterized in that the transmission module ( 1 ) has a connector standardized according to DIN ISO 4165 or has a connector standardized to SAE J563. Method according to claim 11, characterized in that by pressing a button ( 2 ) on the transmitter module ( 1 ) or by the detection of an accident by a sensor an emergency call is triggered, during the emergency call a predefined data packet is sent via the mobile network to a receiver and / or a voice connection is generated to a predefined receiver. A method according to claim 12, characterized in that the voice connection is made using a Bluetooth-connected hands-free device in the motor vehicle. Method according to one of claims 11 to 13, characterized in that the transmission module ( 1 ) establishes a data connection to a mobile radio network, wherein the WLAN interface of the transmission module ( 1 ) forms an access point for other electronic media. Telematics device according to one of claims 1 to 10 or method according to one of claims 11 to 14, characterized in that the telematics device is adapted to transmit commands to the motor vehicle.

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