DE102017209797A1 - Method and device for operating a display system with a driver assistance system and data glasses - Google Patents

Abstract

The invention relates to a method for operating a display system with a driver assistance system and data glasses in a motor vehicle, comprising the following steps:
- determining that a wearer of the data glasses has left the motor vehicle;
Providing vehicle status information to the data glasses via a communication link, wherein the vehicle state information indicates one or more vehicle states upon leaving the motor vehicle by the wearer of the data glasses;
Providing an indication in the data goggles depending on the vehicle condition information after a departure of the motor vehicle is detected.

Description

Technical area

The invention relates to display systems with data glasses, in particular for use in a motor vehicle. Furthermore, the present invention relates to measures for providing vehicle state information when leaving the motor vehicle by the driver.

Technical background

Data glasses, also known as head-mounted displays, are known which, with the aid of a display device, can display an image on one or two display surfaces in the field of vision of the wearer of the data glasses. The display surfaces correspond to reflection surfaces on viewing windows, via which images or display information, such as text, symbols, graphics, video displays and the like, are projected into the eye of the wearer of the data glasses. The viewing glasses of the data glasses are transparent, so that the data glasses can be used to perceive the real environment in the usual way. In addition, data glasses are also known, which include a non-transparent display area for directly displaying the corresponding display information.

The display information can be presented to the wearer of the data glasses usually contact-analogue, d. H. shown in such a way that the display information is bound to an object or a position in the vehicle environment. Thereby, a display information is superimposed on the specific location or object in the real environment, regardless of the viewing direction of the wearer of the data glasses. Thus, the display information is displayed in a specific orientation of the data glasses on their display area.

This is from the publication DE 10 2014 206 623 A1 a device for determining the pose of data goggles is known, comprising a display and a camera. The device is designed to take pictures of the surroundings of the data glasses with the aid of the camera, to detect the image of a stored and predefined area of the surroundings in the recordings of the camera, to detect a feature in the recognized image of the area and to reflect the pose of the data glasses Consideration of the particular feature in the recordings.

The display information may include driver and vehicle condition information, warnings, navigation information, menu and context information, and information of the entertainment system. In particular, navigation information, warnings, information of the entertainment system as well as menu and context information can be displayed in the data glasses abruptly in order to draw the attention of the driver to the relevant information. In addition, provided menu information can inform the wearer of the data glasses about choices of other functions and encourage them to operate the menu and to activate more functions.

Data glasses are usually in communication with a driver assistance system that generally performs functions provided to assist the driver. Displays in the data glasses are usually initiated by the driver assistance system by a corresponding display information is transmitted from the driver assistance system to the data glasses. These ads may result in pose-dependent and pose-independent displays in the data goggles.

When leaving the motor vehicle, the driver generally retains the data glasses, so that the data glasses lose the communication link to the driver assistance system when they are removed from the location of the motor vehicle.

In addition, various warning mechanisms can be implemented in motor vehicles, which alert the driver to undesired vehicle conditions when leaving the motor vehicle. However, these are usually perceptible only in the interior of the motor vehicle and can no longer be perceived as soon as the driver has closed the vehicle door when leaving the vehicle.

It is an object of the present invention to provide an improved safety system for a motor vehicle, with which the user when leaving the vehicle to unwanted vehicle states or other undesirable situations can be pointed.

Disclosure of the invention

This object is achieved by the method for operating a driver assistance system with data glasses according to claim 1 and by the data glasses, the driver assistance system and the overall system according to the independent claims.

Further embodiments are specified in the dependent claims.

• - Feststellen, dass ein Träger der Datenbrille das Kraftfahrzeug verlassen hat;
• - Bereitstellen einer Fahrzeugzustandsinformation an die Datenbrille über eine Kommunikationsverbindung, wobei die Fahrzeugzustandsinformation einen oder mehrere unerwünschte Fahrzeugzustände beim Verlassen des Kraftfahrzeugs durch den Träger der Datenbrille angibt;
• - Bereitstellen einer Anzeige in der Datenbrille abhängig von der Fahrzeugzustandsinformation, nachdem ein Verlassen des Kraftfahrzeugs festgestellt wird.

According to a first aspect, a method for operating a display system with a driver assistance system and data glasses in a motor vehicle provided, with the following steps:

• - determining that a wearer of the data glasses has left the motor vehicle;
• Providing vehicle status information to the data glasses via a communication link, wherein the vehicle state information indicates one or more undesired vehicle states upon leaving the motor vehicle by the wearer of the data glasses;
• Providing an indication in the data goggles depending on the vehicle condition information after a departure of the motor vehicle is detected.

One idea of the above method is that after detection of a leaving of a motor vehicle by a wearer of data glasses, in particular the driver of the motor vehicle, vehicle state information is transmitted to the data glasses which point the wearer of the data glasses to unwanted states of the motor vehicle.

Such unwanted vehicle conditions may indicate, for example, opened windows, an open sunroof, unlocked vehicle doors and a mobile device forgotten in the motor vehicle. In this case, the display of the vehicle condition information should only be displayed on the data glasses when it has been reliably recognized that the wearer of the data glasses has left the motor vehicle. In this way, the driver, when he leaves the place of the motor vehicle with attached goggles, be notified of the display device of the data glasses on unwanted vehicle states, so that it can take measures to eliminate the unwanted vehicle conditions. Thus, a warning of the driver for unwanted vehicle conditions even after closing the vehicle door is possible, and due to the differentiated display option in the data glasses, the unwanted vehicle conditions can be detailed, so that the wearer of the data glasses who want to leave the motor vehicle, informs about unwanted vehicle conditions is and can fix them specifically.

• - dass die Kommunikationsverbindung zwischen der Datenbrille und dem Fahrerassistenzsystem unterbrochen wird; und/oder
• - dass die Fahrzeugtüren verschlossen werden und sich die Position des Fahrers außerhalb des Kraftfahrzeugs befindet, insbesondere durch Erkennen mithilfe einer Sitzbelegungserkennung, und/oder
• - dass sich keine Person im Fahrzeuginnenraum befindet, und/oder
• - dass die geografische Position der Datenbrille zum Zeitpunkt eines Abbrechens der Kommunikationsverbindung zwischen der Datenbrille und dem Fahrerassistenzsystem eine Entfernung vom Kraftfahrzeug aufweist; und/oder
• - dass ein Tracking der Datenbrille nicht mehr möglich ist, da die markanten vorbestimmten Strukturen im Fahrzeuginnenraum für die Posenerkennung nicht mehr durch die Datenbrillenkamera erfasst werden können und nicht innerhalb einer vorbestimmten Zeitdauer wiedergefunden werden; und/oder
• - dass der Träger der Datenbrille eine Aussteigbewegung vollzogen hat.

It can be determined leaving the motor vehicle thereby

• - That the communication link between the smart glasses and the driver assistance system is interrupted; and or
• - That the vehicle doors are closed and the position of the driver is outside the motor vehicle, in particular by detecting using a seat occupancy recognition, and / or
• - that no person is in the vehicle interior, and / or
• - That the geographical position of the data glasses at the time of breaking off the communication link between the smart glasses and the driver assistance system has a distance from the motor vehicle; and or
• - That a tracking of the data glasses is no longer possible because the distinctive predetermined structures in the vehicle interior for the pose detection can not be detected by the data camera and are not recovered within a predetermined period of time; and or
• - That the wearer of the data glasses has completed a descent.

Furthermore, the display in the data goggles can only be provided depending on the vehicle condition information after a locking of the motor vehicle is detected after leaving.

• - einen Zustand einer Beleuchtungseinrichtung,
• - einen Öffnungszustand von Fenstern oder des Schiebedachs,
• - einen Zustand der Handbremse, insbesondere wenn ein Parken des Kraftfahrzeugs an einer Steigung festgestellt wird,
• - einen Zustand, der angibt, dass sich ein Mobilgerät des Trägers der Datenbrille nach dem Verlassen im Kraftfahrzeug befindet.

According to one embodiment, the vehicle state information may include at least one of the following vehicle states:

• a state of a lighting device,
• an opening state of windows or sunroof,
• a state of the handbrake, in particular when a parking of the motor vehicle is detected on a slope,
• - A state indicating that a mobile device of the wearer of the data glasses after leaving the vehicle is.

• - eine direkte Kommunikationsverbindung zwischen der Datenbrille und dem Fahrerassistenzsystem, oder
• - eine indirekte Kommunikationsverbindung über ein Mobilgerät als ein Proxy-Mobilgerät, oder
• - eine indirekte Kommunikationsverbindung über eine fahrzeugexterne Backend-Einrichtung
• - erfolgen

Furthermore, providing the vehicle condition information to the data glasses on

• a direct communication link between the smart glasses and the driver assistance system, or
• an indirect communication connection via a mobile device as a proxy mobile device, or
• - An indirect communication connection via an off-board backend facility
• - respectively

It can be provided that the vehicle status information includes information about the presence of a mobile device in the motor vehicle after leaving the motor vehicle, wherein the vehicle state information displayed is that the mobile device is located in the motor vehicle.

In particular, it can be stated that the mobile device is in the motor vehicle while leaving the vehicle if a communication connection between the smart phone and the mobile device breaks off before the communication connection between the mobile device and the driver assistance system breaks off.

• - eine direkte Kommunikationsverbindung zwischen der Datenbrille und dem Fahrerassistenzsystem, oder
• - eine indirekte Kommunikationsverbindung über das Mobilgerät, oder
• - eine indirekte Kommunikationsverbindung über eine fahrzeugexterne Backend-Einrichtung erfolgen

Furthermore, the provision of the vehicle condition information, which indicates the presence of the mobile device in the motor vehicle during the departure of the motor vehicle, can over

• a direct communication link between the smart glasses and the driver assistance system, or
• - an indirect communication connection via the mobile device, or
• - Make an indirect communication connection via an off-vehicle back-end device

It can be provided that after providing the display in the data glasses, the vehicle states of the vehicle information are set to respective parking conditions when a control element on the data glasses is actuated.

According to an embodiment, the provision of the display in the data glasses can be performed only for a predetermined period of time.

• - festzustellen, dass ein Träger der Datenbrille das Kraftfahrzeug verlassen hat;
• - eine Fahrzeugzustandsinformation über eine Kommunikationsverbindung zur Übermittlung an eine Datenbrille bereitzustellen, wobei die Fahrzeugzustandsinformation einen oder mehrere unerwünschte Fahrzeugzustände beim Verlassen des Kraftfahrzeugs durch den Träger der Datenbrille angibt.

According to a further aspect, a driver assistance system is provided in a motor vehicle, wherein the driver assistance system is designed to:

• - declare that a goggle wearer has left the motor vehicle;
• provide vehicle status information via a communication link for transmission to a smart phone, wherein the vehicle state information indicates one or more undesirable vehicle states upon leaving the motor vehicle by the wearer of the data glasses.

According to another aspect, there is provided a display system comprising the above driver assistance system and data glasses in a motor vehicle, wherein the data glasses are configured to provide an indication depending on the vehicle condition information after an exit of the motor vehicle is detected.

• - eine direkte Kommunikationsverbindung zwischen der Datenbrille und dem Fahrerassistenzsystem,
• - eine indirekte Kommunikationsverbindung über ein Mobilgerät, und
• - eine indirekte Kommunikationsverbindung über eine fahrzeugexterne Backend-Einrichtung.

According to a further aspect, a data goggle for a display system in a motor vehicle is provided, wherein the one communication device is provided to provide a communication connection with a driver assistance system via at least two of the following alternatives:

• a direct communication connection between the data glasses and the driver assistance system,
• - an indirect communication connection via a mobile device, and
• - An indirect communication connection via an off-board backend facility.

list of figures

• 1 eine schematische Darstellung eines Systems mit einem Fahrerassistenzsystem und einer Datenbrille zum Einsatz in einem Kraftfahrzeug; und
• 2 ein Flussdiagramm zur Veranschaulichung eines Verfahrens zum Betreiben des Gesamtsystems.

Embodiments are explained below with reference to the accompanying drawings. Show it:

• 1 a schematic representation of a system with a driver assistance system and a data glasses for use in a motor vehicle; and
• 2 a flowchart for illustrating a method for operating the entire system.

Description of embodiments

1 shows a schematic representation of a display system 2 in particular for use in a motor vehicle 1 , The display system 2 includes a driver assistance system 4 that in communication connection 5 with a data glasses 3 stands. The communication connection 5 is designed as a data transmission channel over which bidirectional data can be transmitted. The communication links described herein are capable of providing any type of data and information to and from the driver assistance system 4 and the data glasses 3 to transmit, for example, based on a packet-based data transmission.

The data glasses 3 is with two transparent lenses 32 provided in a frame 31 are enclosed in a conventional manner. The frame 31 is with eyeglass temples 33 provided so that the data glasses 3 can be worn on the head of a user in a conventional manner.

The lenses 32 are still each with a transparent display area 35 provided by a suitable means, such as one on the frame 31 arranged display device 36 , a display image in the eye of the wearer of the data glasses 3 can be projected. The display device 36 For this purpose, a microprocessor or a comparable computing unit and an imaging unit, such. As a projection device or the like, have. The imaging unit may be configured to generate an electronically generated display image for reflection on the display display area 35 into the eye of the wearer of the data glasses 3 to judge.

Due to the transparent design of the display surface 35 The electronically generated image can pass through the display area 35 Superimposed perceptible real environment. Using the display device 36 For example, display information such as a text, a symbol, video information, graphics or the like may be displayed on one or both display surfaces 35 being represented.

The data glasses 3 can be worn like a typical visual aid on the user's head, the data glasses 3 with the frame 31 rests on the nose of the user and the hanger 33 abut laterally on the user's head. The viewing direction of the user in the straight-ahead direction then takes place through the viewing windows 32 essentially through the transparent display surfaces 35 , so that the user's line of sight of the orientation of the data glasses 3 corresponds or can be derived from it.

Furthermore, the data glasses 3 with a control unit 37 be provided. The control unit 37 may be suitably configured to data glasses functions and functions of the display system 2 perform. This can be done by the driver assistance system 2 with the data glasses 3 in communication with display information regarding contact-analog or non-contact-analogue virtual objects to the data glasses 3 to convey. The display information defines the position and representation of the virtual objects with respect to the vehicle, ie in a vehicle coordinate system (reference system of the motor vehicle).

For example, the control unit 37 Perform a pose detection function in the form of a tracking process to a pose of the head or the data glasses 3 in a vehicle interior. The pose of a data glasses 3 herein refers to the spatial position of the data glasses 3 in the vehicle coordinate system and their three-dimensional orientation. The control unit 37 can do this with a suitable data camera 38 be connected, which is approximately in the direction of the wearer of the data glasses 3 is directed. The data camera 38 regularly captures camera images and transmits them to the control unit 37 , The control unit 37 evaluates the camera images and tries using pattern recognition method finds distinctive predetermined structures of the vehicle interior in the camera image whose positions are known. This can in a conventional manner, the pose of the data glasses 3 be determined.

The driver assistance system 4 stands with at least one vehicle device 42 in conjunction to collect ride, driver and / or vehicle relevant information as vehicle state information and execute driver assistance functions accordingly. For the transmission of information to the driver of the motor vehicle, display information is generated which is composed of virtual objects that are contact-analogous or non-contact-analogous on the display surface 35 the data glasses 3 are to be displayed. In the contact-analog display of a virtual object, the virtual object in question is so on the display surface 35 the data glasses 3 positions the virtual object to a specific spatial position. When changing the pose of the data glasses 3 the relevant virtual object moves accordingly on the display surface 35 the data glasses 3 ,

The data glasses 3 can still have a control B in the form of a key switch or the like, to simple confirmations by the wearer of the data glasses 3 to be able to make.

To establish the communication connection 5 has the driver assistance system 4 a communication device 41 and the data glasses 3 a corresponding communication unit 39 on. This allows the construction of a broadband data connection. The communication device 41 and the communication unit 39 maintain an existing data connection unless the termination of the data connection is instructed or the data glasses 3 out of reach of the driver assistance system 4 located. Upon termination of the communication connection, the communication device attempt 41 and the communication unit 39 at least for a predetermined period of time, regularly or continuously, to rebuild the communication link.

The communication connection 5 between the data glasses 3 and the driver assistance system 4 can directly, z. B. via a Bluetooth connection. A mobile device 6 can also be in communication with the driver assistance system 4 stand.

Alternatively, the communication connection 5 between the data glasses 3 and the driver assistance system 4 indirectly via a mobile device 6 , ie a so-called proxy mobile device, are constructed, for example, a conventional mobile phone or a smartphone of the wearer of the data glasses 3 can be. In this case, the data glasses 3 in communication with the mobile device 5 ' , the data from and to the data glasses 3 to the driver assistance system 4 via another communication connection 5 ' passes.

In alternative embodiments, the driver assistance system 4 directly or indirectly eg on the mobile device 6 with a backend setup 7 in communication connection 8th stand to transfer information. Furthermore, in one embodiment, the communication unit 39 the data glasses 3 also be formed, directly to the backend device in communication 9 to step.

The driver assistance system 4 is designed to capture information about vehicle conditions. In particular, information of the motor vehicle can be detected when leaving the motor vehicle 1 for the driver of the motor vehicle 1 are relevant. For example, as the vehicle states, the locking state of vehicle doors, the opening state of one or more windows and / or a sunroof, the activation state of lighting devices and other vehicle devices that can be activated even when the ignition is switched off can be specified. Furthermore, the presence of a mobile device which is in communication with the driver assistance system can be regarded as the vehicle state.

In 2 is shown schematically a flowchart illustrating a method that the driver of the motor vehicle 1 points to unwanted vehicle conditions when leaving the vehicle.

• - dass die Kommunikationsverbindung 5 zwischen der Datenbrille 3 und dem Fahrerassistenzsystem 4 abreißt;
• - dass die Fahrzeugtüren verschlossen werden und sich die Position des Fahrers außerhalb des Kraftfahrzeugs 1 befindet, beispielsweise durch Erkennen mithilfe einer Sitzbelegungserkennung,
• - dass sich keine Person im Fahrzeuginnenraum befindet,
• - dass die geographische Position der Datenbrille 3, die mithilfe einer in der Datenbrille 3 vorgesehenen GPS-Einheit bestimmt wird, zum Zeitpunkt eines Abbrechens der Kommunikationsverbindung 5 zwischen der Datenbrille 3 und dem Fahrerassistenzsystem 4 von der Position des Kraftfahrzeugs 1 abweicht,
• - dass ein Tracking der Datenbrille 3 nicht mehr möglich ist, da die markanten vorbestimmten Strukturen im Fahrzeuginnenraum für die Posenerkennungsfunktion nicht mehr durch die Datenbrillenkamera 38 (Inside-out-Tracking) erfasst werden können und nicht innerhalb einer vorbestimmten Zeitdauer wiedergefunden werden;
• - dass der Träger der Datenbrille 3 eine z. B. durch einen Initialsensor in der Datenbrille 3 festgestellte Aussteigbewegung vollzogen hat, d. h. z. B. in Form einer Bewegung nach links (Linkslenker) und einer Bewegung nach oben.

In step S1, it is checked whether the driver of the motor vehicle 1 wearing a data glasses 3 carries, has left the vehicle. This can be determined, for example, by

• - that the communication connection 5 between the data glasses 3 and the driver assistance system 4 tear off;
• - That the vehicle doors are closed and the position of the driver outside the vehicle 1 located, for example, by recognizing by seat occupancy recognition,
• - that no person is inside the vehicle,
• - that the geographical position of the data glasses 3 using a in the data glasses 3 provided GPS unit is determined at the time of a termination of the communication link 5 between the data glasses 3 and the driver assistance system 4 from the position of the motor vehicle 1 deviates
• - that a tracking of the data glasses 3 is no longer possible because the distinctive predetermined structures in the vehicle interior for the pose detection function no longer through the data camera 38 (Inside-out tracking) can be detected and not recovered within a predetermined period of time;
• - that the wearer of the data glasses 3 a z. B. by an initial sensor in the data glasses 3 ascertained ascending movement has completed, ie, for example, in the form of a movement to the left (left-hand drive) and a movement upwards.

It is determined that the driver is the motor vehicle 1 has left (alternative: yes), then the procedure with step S2 continued, otherwise (alternative: no) becomes step S1 jumps back.

Once it has been established that the driver is the motor vehicle 1 has left, is in step S2 Checks if the driver is the motor vehicle 1 has locked. The interlock may be taken as an indication that the driver does not intend to shortly to the vehicle 1 to return. If a locking of the vehicle doors is detected (alternative: yes), then the procedure with step S3 otherwise, the step becomes S1 jumps back.

In step S3 be from the driver assistance system 4 to the data glasses 3 Vehicle state information about unwanted vehicle states transmitted, the unwanted vehicle states at the time of leaving the motor vehicle 1 (Step S1 ) or at the time of locking the vehicle door (determined by step S2 ), such as a vehicle state of an activated lighting device, an opening state of one or more windows or the sunroof, a state of a released parking brake, in particular if additionally parking the motor vehicle 1 is ascertained on a slope or gradient, or the like, insofar as these of predetermined reference vehicle conditions, such as. B. closed windows, closed sunroof, lights off, switched on handbrake and the like, differ. The reference vehicle states can thereby indicate a parking state which determines the parking state of the motor vehicle 1 indicates.

There is no direct communication connection to the data glasses 3 , if appropriate, if so provided data glasses 3 and driver assistance system 4 communication links 8th . 9 to the backend facility 7 can build the vehicle state information from the driver assistance system 4 to the backend facility 7 and from the backend device to the data glasses 3 , in particular also indirectly via a with the data glasses 3 communicatively connected mobile device 6 be transmitted.

As vehicle state information can also be transmitted, if after finding a Leaving the driver of the motor vehicle 1 the mobile device 6 still in the vehicle 1 located. This can be determined, for example, by the fact that the communication connection 5 ' between the data glasses 3 and the mobile device 6 breaks off before the communication connection 5 ' between the mobile device 6 and the driver assistance system 4 aborts. Therefore, it can be concluded that the driver is out of range of the mobile device 6 has moved out since the mobile device 6 still located in the vehicle interior. In this case, as another vehicle state, the vehicle state information to the data glasses 3 be transmitted to the mobile device 6 in the motor vehicle 1 located. Thus, the driver is advised that he may be the mobile device 6 in the motor vehicle 1 forgot.

Is there a direct communication connection between the data glasses 3 and a backend facility 7 Thus, as described above, the vehicle condition may be that of the mobile device 6 remained in the vehicle interior, of the driver assistance system 4 or from the mobile device 6 via the backend device to the data glasses 3 be transmitted.

The vehicle state information becomes in step S4 suitably on the display surface 35 through the display device 35 the data glasses 3 shown.

In step S5 will check if the control B on the data glasses 3 has been actuated. If this is the case (alternative: yes), then the procedure with step S6 continued, otherwise with step S7 ,

In step S6 is via an existing communication link to the driver assistance system 4 this instructed to adjust as far as possible, the vehicle states automatically to a park state. Communication with the driver assistance system 4 may vary depending on the configuration of the display system 2 through the direct communication connection 5 , about the backend device 7 or via the mobile device 6 respectively.

In step S7 is queried whether since the display of the vehicle state information a predetermined period of time, for. B. 30 s - 60 s, has elapsed. If this is the case (alternative: yes), go to step S1 jump back, otherwise it will step to S5 jumps back.

In one example, a wearer has the data glasses 3 , z. As a driver, after getting out of a motor vehicle 1 forget to close the side windows and the mobile device 6 take. After leaving the motor vehicle 1 has been reliably detected, then the driver in the data glasses 3 shown that the windows are open and the mobile device 6 located in the vehicle interior. Furthermore, the driver by operation of the control element B on the data glasses 3 confirming the acknowledgment of the corresponding vehicle states and, at the same time, the instruction to the driver assistance system 4 to put the vehicle states in a park state, ie to close the side windows.

LIST OF REFERENCE NUMBERS

1

motor vehicle

2

display system

3

data glasses

31

frame

32

visors

33

Temples

35

transparent display area

36

display

37

control unit

38

Data POV

39

communication unit

B

operating element

5, 5 ', 5 ", 8, 9

communication link

4

Driver assistance system

41

communicator

42

vehicle equipment

6

mobile device

7

Back-end device

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102014206623 A1 [0004]

Claims (13)

Method for operating a display system (2) with a driver assistance system (4) and data glasses (3) in a motor vehicle (1), comprising the following steps: - determining that a wearer of the data glasses (3) has left the motor vehicle (1); Providing vehicle status information to the data glasses (3) via a communication link (5, 5 ', 5 "), the vehicle condition information indicating one or more undesired vehicle conditions upon leaving the motor vehicle (1) by the wearer of the data glasses (3); - Providing an indication in the data goggles (3) depending on the vehicle state information after a departure of the motor vehicle (1) is detected. Method according to Claim 1 in which a departure from the motor vehicle (1) is detected by - the communication link (5, 5 ', 5 ") being interrupted between the data goggles (3) and the driver assistance system (4); and / or - the vehicle doors being closed and the position of the driver is outside the motor vehicle (1), in particular by detecting by means of a seat occupancy recognition, and / or - that there is no person in the vehicle interior, and / or - that the geographical position of the data glasses (3) at the time of a cancellation the communication link (5, 5 ', 5 ") between the data glasses (3) and the driver assistance system (4) has a distance from the motor vehicle (1); and / or - that a tracking of the data glasses (3) is no longer possible because the distinctive predetermined structures in the vehicle interior for the pose detection can not be detected by the data camera (38) and are not recovered within a predetermined period of time; and / or - that the wearer of the data glasses (3) has made a descent movement. Method according to Claim 1 or 2 in which the display in the data glasses (3) is only provided depending on the vehicle condition information after a locking of the motor vehicle (1) is detected after leaving. Method according to one of Claims 1 to 3 wherein the vehicle state information comprises at least one of the following states: a state of a lighting device, an opening state of one or more windows or a sunroof, a state of a handbrake, a state indicating that a mobile device 6 of the wearer is located the data glasses (3) after leaving the vehicle (1) is located. Method according to one of Claims 1 to 4 wherein providing the vehicle condition information to the smart goggles (3) via - a direct communication link (5) between the smart glasses (3) and the driver assistance system (4), or - an indirect communication link (5 ', 5 ") via a mobile device (6 ) as a proxy mobile device, or - an indirect communication link (8, 9) via a vehicle external backend device (7) Method according to one of Claims 1 to 5 wherein the vehicle state information includes information on the presence of a mobile device (6) in the motor vehicle (1) during the departure of the motor vehicle (1), indicated as vehicle state information, that the mobile device (6) is located in the motor vehicle (1). Method according to Claim 6 in which it is determined that the mobile device (6) in the motor vehicle (1) is in the motor vehicle (1) when leaving a communication link (5 ') between the data goggles (3) and the mobile device (6) before the vehicle Communication connection (5 ") between the mobile device (6) and the driver assistance system (4) stops. Method according to Claim 6 or 7 wherein providing the vehicle condition information indicative of the presence of the mobile device (6) in the motor vehicle (1) while leaving the motor vehicle (1) via - a direct communication link between the smart goggles (3) and the driver assistance system (4), or an indirect communication connection via the mobile device (6), or - an indirect communication connection via a vehicle external backend device (7). Method according to one of Claims 1 to 8th in which, after providing the display in the data glasses (3), the vehicle states of the vehicle information are set to respective parking conditions when an operating element (B) on the data glasses (3) is actuated. Method according to one of Claims 1 to 9 , wherein the provision of the display in the data glasses (3) takes place only for a predetermined period of time. Driver assistance system (4) in a motor vehicle (1), wherein the driver assistance system (4) is designed to: - determine that a wearer of the data glasses (3) has left the motor vehicle (1); vehicle status information via a communication link (5, 5 ', 5 ", 8, 9) for transmission to a data goggle (3), wherein the vehicle state information one or more undesired vehicle states when leaving the motor vehicle (1) by the wearer of data goggles ( 3). Display system (2) with a driver assistance system (4) according to Claim 11 and a data goggle (3) in a motor vehicle (1), wherein the data goggle is configured to provide an indication depending on the vehicle state information after a departure of the motor vehicle (1) is detected. Data goggles (3) for a display system (2) in a motor vehicle (1), wherein the one communication device is provided to provide a communication link with a driver assistance system (4) via at least two of the following alternatives: a direct communication connection between the data glasses (3) and the driver assistance system (4), an indirect communication connection via a mobile device (6), and - An indirect communication connection via a vehicle external backend device (7).

Images