Device and method for determining information in a motor vehicle by means of a 3D sensor having a holographic mirror
阅读说明：本技术 借助于具有全息镜的3d传感器确定机动车辆内信息的设备和方法 (Device and method for determining information in a motor vehicle by means of a 3D sensor having a holographic mirror ) 是由 S·霍克 S·哈尔特曼 于 2018-11-26 设计创作，主要内容包括：本发明涉及一种用于确定机动车辆的内部空间的至少一个部分区域中的信息的设备,其中所述机动车辆具有用于照明所述内部空间的光源,并且该照明借助于由所述光源发射的光束来进行,其中所述光束遵循从所述光源到所述内部空间的待照明部分区域的发射路径,其特征在于,所述机动车辆具有用于信息检测的传感器,并且所述信息检测借助于包含与所述内部空间的所述部分区域有关的数据的光来进行,其中所述光束遵循从所述内部空间的被照明的部分区域到所述传感器的接收路径,并且其中存在用于对所述光束进行衍射的全息图并且所述全息图被定位成,使得所述全息图能够实现所述光束既沿着所述发射路径又沿着所述接收路径的衍射。此外还设置了用于确定所述信息的方法。(The invention relates to a device for determining information in at least one partial region of an interior of a motor vehicle, wherein the motor vehicle has a light source for illuminating the interior space and the illumination is carried out by means of a light beam emitted by the light source, wherein the light beam follows an emission path from the light source to the partial area of the interior space to be illuminated, characterized in that the motor vehicle has a sensor for information detection and the information detection is carried out by means of light containing data relating to the partial region of the interior space, wherein the light beam follows a receiving path from the illuminated partial region of the interior space to the sensor, and wherein a hologram for diffracting the light beam is present and positioned, such that the hologram enables diffraction of the beam along both the transmit path and the receive path. A method for determining the information is also provided.)
1. Device for determining information in at least one partial region (4) of an interior space (3) of a motor vehicle (1), wherein the motor vehicle (1) has a light source (9) for illuminating the interior space (3) and the illumination is carried out by means of a light beam (10) emitted by the light source (9), wherein the light beam (10) follows an emission path from the light source (9) to the partial region (4) of the interior space (3) to be illuminated,
the motor vehicle (1) has a sensor (8) for information detection and the information detection is carried out by means of a light beam (10) containing data relating to the partial region (4) of the interior space (3), wherein the light beam (10) follows a reception path from the illuminated partial region (4) of the interior space (3) to the sensor (8), and wherein a hologram (7) for diffracting the light beam (10) is present and the hologram (7) is positioned such that the hologram (7) enables diffraction of the light beam (10) both along the emission path and along the reception path.
2. Device according to claim 1, characterized in that the sensor (8) for information detection comprises a 3D camera.
3. The apparatus according to any of the preceding claims, characterized in that the hologram (7) is positioned at a vehicle roof (6).
4. The device according to any of the preceding claims, characterized in that the light beam (10) emitted by the light source (9) is deflected at an optical element (15) in the direction of the hologram (7).
5. Device according to any of the preceding claims, characterized in that there are a plurality of holograms (7), and in particular that different holograms (7) diffract different wavelengths of light.
6. The device according to claim 5, characterized in that the hologram (7) is constructed as a multiplex hologram or a layer stack-individual hologram or as a combination of a multiplex hologram and a layer stack-individual hologram.
7. Device according to any of the preceding claims, characterized in that the light beams (10) emitted for illumination have different light wavelengths.
8. Device according to any one of the preceding claims, characterized in that the light beam (10) is configured as polychromatic light, wherein in particular at least one of the following types of light sources (9) is used:
-a spectrally wide light source (9) to generate the polychromatic light,
-a light source (9) having a plurality of defined light wavelengths for generating the polychromatic light,
-a spectrally narrowband emitting light source (9) for generating said polychromatic light, the light wavelength of said light source (9) being tunable.
9. The device according to any one of the preceding claims, characterized in that there are a plurality of light sources (9), and in particular a plurality of light sources (9), wherein the plurality of light sources emit light beams (10) having different light wavelengths.
10. Device according to any of the preceding claims, characterized in that a color filter (18) is present, in particular a switchable color filter (18) for selecting a defined light wavelength.
11. The device according to any one of the preceding claims, characterized in that there are a plurality of sensors (8), and in particular a plurality of sensors (8) for detecting different light wavelengths.
12. Method for determining information in at least one partial region (4) of an interior space (3) of a motor vehicle (1), wherein the motor vehicle (1) has a light source (9) for illuminating the interior space (3) and the light source (9) emits a light beam (10) illuminating the partial region (4) of the interior space (3) along a transmission path in which the information is to be determined, characterized in that the motor vehicle (1) has a sensor (8) for information detection and the sensor (8) receives the light beam (10) which transmits data relating to the partial region (4) of the interior space (3) along a reception path,
and wherein the light beam (10) is diffracted at the hologram (7) to determine information of the partial area (4), wherein the hologram (7) is positioned such that the light beam (10) is diffracted at the hologram (7) both along the transmit path and along the receive path.
13. Method according to claim 12, characterized in that the three-dimensional data of the partial region (4) of the interior space (3) is determined by means of a 3D camera, wherein the optical path of the 3D camera in both the emission direction and in the reception direction is deflected at the hologram (7), wherein the hologram (7) is positioned in particular at a vehicle roof (6).
14. Method according to any of claims 12 to 13, characterized in that the information from the partial region (4) of the inner space is determined by means of a light beam (10) diffracted at the hologram (7) and, additionally, the information from a further partial region (5) of the inner space (3) is determined by means of a direct light beam (10).
15. Method according to any one of claims 12 to 14, characterized in that information from different partial areas (4) of the interior space (3) is determined, wherein a plurality of holograms (7) is used and different holograms (7) diffract different light wavelengths, and the information determination is carried out for each partial area (4) by means of a light beam (10) having a respectively defined light wavelength.
Technical Field
The invention relates to a device for determining information in at least one partial region of an interior of a motor vehicle, wherein the motor vehicle has a light source for illuminating the interior space and the illumination is carried out by means of a light beam emitted by the light source, wherein the light beam follows an emission path from the light source to the partial area of the interior space to be illuminated, characterized in that the motor vehicle has a sensor for information detection and the information detection is carried out by means of a light beam containing data relating to the partial region of the interior space, wherein the light beam follows a receiving path from the illuminated partial region of the interior space to the sensor, and wherein a hologram for diffracting the light beam is present and positioned, such that the hologram enables diffraction of the beam along both the transmit path and the receive path. A method for determining the information is also provided.
Background
Motor vehicles are increasingly equipped with auxiliary systems, safety systems or even autonomous driving systems. In the context of such partially or highly autonomous driving, vehicle interior space viewing becomes increasingly important. Ideally, 3D data of all occupants should be detected here. The detection of these data is particularly relevant to Passive security (Passive security). For example, the manner of deployment of the airbag should be adapted to the occupant to be protected. The Seat Belt Reminder (Seat Belt Reminder) can only be activated when a person is actually sitting in the respective Seat. This function of the harness should be compatible with extreme body positions (feet on the dashboard, knees clipped to the back of the front seat, lying down … …). Furthermore, if corresponding occupants are identified and known, the comfort and infotainment functions may be automatically adapted to those occupants. Furthermore, gesture control, for which it is advantageous to detect high-resolution 3D data, is increasingly used within the scope of the new HMI concept. One possibility to detect such data is to use a ToF camera (Time-of-Flight) camera, which operates with light in the near infrared range, for example light with a wavelength of 850nm or 940 nm.
Automotive manufacturers have rejected mounting optical sensors with fisheye lenses in the middle of the headliner because such concepts are not applicable to vehicles with panoramic roofs or convertibles. In contrast, an optical sensor mounted at the position of the rear view mirror cannot detect the entire rear seat row for geometrical reasons, let alone the possible other rows of seats, since the front seat row blocks a large spatial area. However, for example, the identification of a child in a rear seat, if necessary in a rear-oriented child seat, is an important and problematic application.
Holographic elements are known from optical devices. In contrast to conventional optics, for a holographic optical element implemented as a volume hologram, the beam deflection is not predetermined by refraction, but by diffraction at the volume grating. The holographic optical element can be produced in a transmissive and reflective manner and, by freely selecting the angle of incidence and the angle of emergence or the angle of diffraction, it can be realized in a new construction form. Here, the holographic diffraction grating is exposed into a film (
Disclosure of Invention
Advantageously, the device according to the invention enables the recording range of the sensor to be extended to a plurality of additional partial regions of the interior space.
This is made possible according to the invention by the features specified in the independent patent claims. Further configurations of the invention are the subject of the dependent claims.
According to the inventive device for determining information in at least one partial region of an interior space of a motor vehicle, wherein the motor vehicle has a light source for illuminating the interior space and the illumination is carried out by means of a light beam emitted by the light source, wherein the light beam follows an emission path from the light source to the partial area of the interior space to be illuminated, characterized in that the motor vehicle has a sensor for information detection and the information detection is carried out by means of a light beam containing data relating to the partial region of the interior space, wherein the light beam follows a receiving path from the illuminated partial region of the interior space to the sensor, and wherein a hologram for diffracting the light beam is present and positioned, such that the hologram enables diffraction of the beam along both the transmit path and the receive path.
This is understood to mean the detection of data from a partial region of the interior space. In this case, this may be, for example, general information about the interior space (e.g. seat occupancy) or a determination (e.g. recognition) of the occupant and/or an observation (monitoring) of the occupant's body posture, gestures, head orientation, facial expressions, etc. Here, the determined data may be three-dimensional data. For determining these data, for example, a 3D camera, for example a time-of-flight camera, is used. Furthermore, any type of holographic optical element, in particular a reflection hologram, can be used as a hologram. A hologram is also understood to be an entire system of multiple holograms (e.g. a layer composite of multiple holograms) and/or integrated into a vehicle component (e.g. a hologram is applied to a glass plate in a headliner). Furthermore, the positioning of the hologram is coordinated with the position of the camera and of the lighting device. Also the partial area to be observed, the wave and angle selectivity and the intended light wavelength are taken into account. Positioning is understood to mean both a local position and a possible installation at a specific angle. In view of the known geometric relationships of the interior space and the positions of the elements, the desired information, for example relating to the position of the occupant in the partial region, can be determined from the light waves, for example by means of a computer unit. In addition to the terms "transmit path" and "receive path", reference is often made to a "transmit direction" or "transmit channel", and similarly to a receive direction or receive channel. The transmission path extends from the light source to the object to be determined and the reception path extends from the object to be determined to the sensor. The emitted light beam can be either a light beam for purely illuminating the interior space or a light beam for recording the interior space. Of course, in the correct physical way, instead of a light beam, only the term "light" is referred to, the term "light beam" being used for image representation in support of this idea.
Thereby, a system for observing a particular partial region of the interior space can advantageously be created. In particular, this makes it possible to observe, with simple means, an interior space which cannot be detected directly due to the position of the camera. Furthermore, a flexible use of the system is possible, since the hologram can be adapted to vehicles with different geometries. By acting on the hologram in both directions, the hologram can be used both to illuminate a partial region along the transmit path and to direct the beam back along the receive path. This system makes it possible to reduce costs, since all partial areas or occupants can be detected using only one (or a small number of) sensors. Furthermore, no additional light sources are required in the partial region to be analyzed. A reduction in the number of components also results in a reduction in the installation space. Since not only the front passengers can be identified by the system, an increase in the comfort of the passengers in the rear seats is achieved, for example by automatically adapting infotainment and comfort functions. Furthermore, the proposed solution is characterized by a low-cost structure — in addition to the reduced number of components, the holograms used are also relatively inexpensive. Furthermore, the angle and wave selectivity of the hologram reduces the interference light caused by the ambient light, so that the determined data is of high quality.
In an advantageous embodiment, the device is characterized in that the sensor for information detection comprises a 3D camera.
This is understood to mean the determination of three-dimensional data about the part region. For this purpose, so-called 3D cameras are used. For example, a time-of-flight camera may be used. The time-of-flight camera has a special imager with special pixels and determines the time required for the beam to go between emission and return, from which the distance can be determined. By detecting all partial regions and occupants completely in three dimensions, safety can be further increased, for example by special adaptations in terms of passive safety.
In one possible configuration, the device is characterized in that the hologram is positioned at the vehicle roof.
As already mentioned, the term "positioning" should be understood in a broad sense, e.g. how the hologram is introduced, coated, mounted, integrated, etc. Advantageously, by this positioning, for example by means of a camera mounted at the position of the rear view mirror, the rear seats can be detected geometrically completely. The light path is not blocked by the front row of seats. Advantageously, the hologram can be positioned at a panoramic roof even in a vehicle having the panoramic roof, since the panoramic roof remains transparent to visible light.
In a preferred embodiment, the device is characterized in that the light beam emitted by the light source is deflected at the optical element in the direction of the hologram.
An optical element is to be understood as an objective or other optical device having a particular shape or particular material combination and thus being capable of achieving a defined angle of incidence and exit. The optical element is positioned and/or mounted at or in close proximity to the lighting device and/or the sensor. The optical elements also act in multiple directions, that is, they enable the light waves to be conducted and deflected along the transmission path and the reception path. In this case, the light beam is deflected in the emission direction in the direction of the hologram. Furthermore, the light beam is deflected in a receiving direction substantially in the direction of the sensor. Alternatively, the deflection can also be effected by means of an optical element in the direction of a spatially known receiver remote from the transmitter. The functionality of the system can thereby advantageously be improved. This also results in an increased design margin and installation space advantages with regard to the positioning and orientation of the sensor and the light source.
In an alternative embodiment, the device is characterized by the presence of a plurality of holograms, and in particular by the fact that different holograms diffract different wavelengths of light.
This is understood to mean that different partial regions of the interior space can be illuminated or observed by means of different holograms. For example, polychromatic light can be used for this purpose for illumination. Only light waves of a particular wavelength or range of wavelengths of light are diffracted at each hologram. Corresponding to the angular selectivity of the respective diffraction hologram, the respective light beam of a particular light wavelength range is forwarded into a specific partial region of the interior space at a respective exit angle. Advantageously, other rows of seats, for example third or other rows of seats in a bus, may be detected by using a plurality of holograms. The positioning of the hologram may for example be performed at the same location in the vehicle. Of course, it is also advantageously conceivable to position at least one or more holograms at the second location and/or at other locations.
In an advantageous embodiment, the device is characterized in that the hologram is designed as a multiplex hologram or a layer stack individual hologram or as a combination of a multiplex hologram and a layer stack individual hologram.
This is understood to mean that there are a plurality of holograms for diffracting the light beam. Here, each hologram has its own characteristics. The holograms may be spatially co-located. This embodiment is carried out, for example, as a layer stack of individual holograms. The use of multiple holograms having different characteristics (e.g., wave selectivity) is particularly suited in conjunction with the use of polychromatic light from light sources that emit different wavelengths of light or different ranges of wavelengths of light. Thus, the efficiency of the individual holograms can be advantageously adapted to the system. In the case of multiple holograms, the efficiency decreases as the number of holograms increases. In the case of a layer stack, scattering effects at the layer stack can be problematic or there is an impractical layer stack. Furthermore, a color filter may advantageously be used in front of the sensor.
In one possible embodiment, the device is characterized in that the light beams emitted for illumination have different light wavelengths.
This is understood to be the use of light beams having different wavelengths of light. By means of the corresponding features of the hologram, a specific wavelength of light is then caused to be diffracted at the hologram at a specific angle. For example, multiple holograms may be positioned at the same location as a stacked hologram. In this case, the incident light beams (emission paths) have the same incident angle. A defined wavelength of light is diffracted at the associated hologram and output at a particular exit angle. In this case, different light waves have different exit angles. Diffraction or deflection of the reflected light beam (reception path) proceeds in a similar manner. The information at the sensor can be separated by using and combined with color filters. Advantageously, the information determination in the different regions of the interior space can be carried out by the angle and the wave selectivity of the height of the hologram. Thereby, for example, different partial regions of the interior space can be observed.
In a preferred embodiment, the device is characterized in that the light beam is embodied as polychromatic light, in particular using a spectrally broad light source, or a light source having a plurality of defined light wavelengths, or a spectrally narrowly emitting light source, the light wavelengths of which can be tuned.
Advantageously, by combining polychromatic light with a plurality of holograms having different wavelengths of light and angular selectivity, only one light source and only one camera can be used to record and view different partial areas of the interior space.
In an alternative embodiment, the device is characterized in that there are a plurality of light sources, and in particular, a plurality of light sources emitting light with different wavelengths of light.
Advantageously, each partial region of the interior space to be recorded can be illuminated separately by using a plurality of light sources, for example with different light wavelengths. This makes it possible to achieve advantages in terms of installation space and installation volume.
In one possible embodiment, the device is characterized by the presence of color filters, in particular switchable color filters for selecting defined light wavelengths.
This is understood to mean the presence and use of a color filter in order to selectively extract information from light beams having different wavelengths of light in front of the sensor. The color filter is especially positioned and/or mounted at or in close proximity to the sensor. For example, multiple color filters may also be present and used. Furthermore, color filters are advantageously assigned to defined pixels of the sensor. Alternatively, the light sources can also be operated sequentially with simultaneous evaluation of the light beams received in the sensors.
In a preferred embodiment, the device is characterized in that there are a plurality of sensors, and in particular a plurality of sensors for detecting different wavelengths of light.
This is understood to mean that one or more other sensors, at least other imagers, are present and used to view different partial areas of the interior space. These additional sensors are positioned to be arranged slightly displaced from the original sensor (imager). Furthermore, advantageously, not only one or more further sensors can be used, but also a corresponding light source for each camera.
Furthermore, according to the invention, a method is specified for determining information in at least one partial region of an interior of a motor vehicle, wherein the motor vehicle has a light source for illuminating the interior and the light source emits light which illuminates a partial region of the interior along an emission path, in which partial region the information is to be determined. According to the invention, the method is characterized in that the motor vehicle has a sensor for information detection, and the sensor receives light which transmits data relating to the partial region of the interior space along a receiving path, and in that the light is diffracted at a hologram to determine the information of the partial region, wherein the hologram is designed such that the light is diffracted at the hologram both along the transmitting path and along the receiving path.
For further explanation and advantages of the method, reference is made to the preceding description.
In an advantageous embodiment, the method is characterized in that the three-dimensional data of the partial region of the interior space is determined by means of a 3D camera, wherein the beam path of the 3D camera in the transmission direction and in the reception direction is deflected at the hologram, wherein the hologram is positioned in particular at the vehicle roof.
This is understood as using at least one (or more) 3D camera(s) to e.g. observe the partial region of the interior space or to recognize a person or a body posture or gesture of a person. For example, time-of-flight cameras are used for this purpose. The hologram is positioned at the vehicle roof, for example, between the pillars a-B and/or B-C and/or C-D and/or a-C. Of course, it is also conceivable to mount the hologram to different areas and/or also across multiple areas.
In a possible embodiment, the method is characterized in that the information from one partial region of the interior is determined by means of the light diffracted at the hologram and, in addition, the information from a further partial region of the interior is determined by means of the light which takes the direct path.
This is understood to mean that the partial regions are observed by means of the hologram, which partial regions can only be observed by means of diffraction of the light beam, but not by means of a direct light beam. The method thus makes it possible to determine information from partial regions of the interior space by means of the light beam diffracted at the hologram, which partial regions cannot be detected by means of the direct light beam. However, other partial regions are also directly observed. Thereby, the recording area of the sensor can advantageously be considerably enlarged and further components can be saved.
In a preferred embodiment, the method is characterized in that information from different partial regions of the interior space is determined, wherein a plurality of holograms are used and different holograms diffract light of different wavelengths, and the information determination is carried out for each partial region by means of light having a respectively defined wavelength of the light.
This is understood to mean that each hologram diffracts light of a particular wavelength (actually a small range of wavelengths) (wavelength selectivity). Furthermore, the light of the specific wavelength is diffracted in a characteristic manner by the hologram (angle selectivity). That is, for example, a hologram deflects light of a particular wavelength to an exit angle of 30 ° at an incident angle of 10 °. The other wavelengths of light are not diffracted or diffracted into the exit direction. In contrast, the second hologram diffracts light of a different wavelength to an exit angle of 40 ° at an incident angle of 10 °. However, again, the second hologram does not diffract the first wavelength of light. This feature is of course defined and known. This characteristic can be adapted to the respective system/requirements by means of material parameters (thickness and refractive index modulation of the holographic layer). In combination with the known positioning of the hologram, it can be determined very precisely which wavelengths of light can be used to observe which partial region of the interior space.
Drawings
It should be noted that the features listed individually in the description can be combined with one another in any technically meaningful way and show further configurations of the invention. Further features and suitability of the invention result from the description of the embodiments on the basis of the figures.
In the drawings:
fig. 1 shows a schematic representation of information determination by means of a hologram; and
FIG. 2 shows the diffraction behavior of a monochromatic light beam at a hologram; and
FIG. 3 shows the diffraction behavior of a polychromatic light beam at a holographic complex; and
fig. 4 shows the receive path of a ToF camera with a beam deflected by an HOE; and
FIG. 5 shows the receive path of a ToF camera with multiple beams, each appropriately deflected by an HOE complex, and exemplary optical elements and color filters; and
fig. 6 shows method steps of an exemplary representation of the method.
Detailed Description
Fig. 1 shows a schematic representation of information determination by means of a hologram. A motor vehicle 1 is shown here, in the
Fig. 2 shows an exemplary diffraction behavior of a monochromatic light beam at a hologram. The mode of action of the
Fig. 3 also shows the diffraction behavior of a polychromatic light beam at a holographic complex. In this case, a plurality of diffraction angles are fanned out by a plurality of holograms for a plurality of wavelengths (for example for detecting different sitting postures). Here, each wavelength range corresponds to a diffraction angle range. The resolution of the system is defined here in particular by the number of holograms. In the example shown, incident light beams 11a, 11b, 11c, 11d are found, which have respectively different light wavelengths. These incident beams all have the same angle of
The different individual holograms can be stored (i.e. transformed) either as so-called multiplex holograms into one layer, as a stack of layers consisting of individual holograms, or according to a combination of both (adapted to the respective system configuration). By careful selection of the material parameters, the selectivity of the individual holograms can be adapted such that the individual holograms only diffract light of the relevant wavelength. The hologram or the layer stack can also be used simultaneously for the return channel. The beam path is reversible and the hologram bundles and directionally transmits the reflected beam in the direction of the light source or sensor.
Fig. 4 shows the reception path of the ToF camera with the light beam via the hologram and the optical element. An exemplary reception path for two
Fig. 5 shows the receive path of a ToF camera with multiple beams along the hologram and optical elements and color filters. This embodiment includes the use of polychromatic light. In this case, it is possible to operate both with spectrally broad light sources and with light sources of a plurality of defined wavelengths or whose wavelength can be tuned, although it is emitted in a spectrally narrow band. A hologram is required for each wavelength to be used. Accordingly, in the embodiment shown, a plurality of holograms 7a, 7b, 7c, 7d are superimposed. Here, multiple diffraction angles may be monitored by multiple holograms for multiple wavelengths (e.g., for detecting different sitting postures). Here, each wavelength corresponds to one diffraction angle. The resolution of the system is defined here in particular by the number of holograms. For the technical description, reference is also made to the description of fig. 3. On the detector side, wavelength separation can be achieved by means of a color filter 18. The color filter 18 is advantageously implemented as a diffractive element. Here, color filters may be respectively assigned to different pixels. In this case, the superimposed light beams are spectrally fanned out and each pixel or pixel region is "assigned" a defined wavelength.
Fig. 6 shows method steps of an exemplary representation of the method. The method is initiated, for example, when the vehicle is started or when an auxiliary function or a monitoring function is activated. In a first method step S1, for example, a polychromatic light source is operated such that polychromatic light is emitted from the light source. The light is deflected in the direction of the hologram at the objective lens between the light source and the hologram. In a second step S2, the light is diffracted at the hologram corresponding to the angle and wave selectivity of the hologram. A corresponding light beam of a specific wavelength is forwarded at a specific angle into a defined partial region of the interior space for illumination. In step S3, information recording of the partial region or the occupant and its position, body posture, gesture, facial expression, and the like is performed. The beam is reflected at the object and directed back in the direction of the hologram. In step S4, diffraction is again performed at the hologram in correspondence with the angle and wave selectivity of the hologram. The return directed beam is re-deflected at the objective lens, this time in the direction of the image sensor. The image sensor may be, for example, a time-of-flight camera with a corresponding imager. In a next step S5, data recording of the light is performed by means of the image sensor. The method then continues with step S1. Furthermore, after step S5, the data material is analyzed in step S6, for example by means of a control device. From the data material, corresponding information can be derived, which is used, for example, as input for further method steps. For example, in step S7, a passive safety system (e.g., an airbag or a seat belt system) may be adapted to the body posture of the occupant. Here, it may even be considered to switch off the passive safety system if this improves the safety of the occupants. Of course, automatic control and adaptation of comfort and infotainment functions is also possible.
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