DE102019209950A1 - Method for sunglasses analysis and display adjustment - Google Patents

Abstract

The invention relates to a method for adjusting a display device in the interior of a vehicle, comprising the steps of detecting a vehicle occupant; anddetecting whether the detected vehicle occupant is wearing sunglasses; characterized by the further steps of analyzing the detected sunglasses; andadjusting the display device based on the result of the analysis of the detected sunglasses.

Description

The present invention relates to a method for adjusting a display device in the interior of a vehicle, comprising the steps of detecting a vehicle occupant and detecting whether the detected vehicle occupant is wearing sunglasses. The invention also relates to a vehicle suitable for carrying out the method. The invention also relates to a computer program comprising commands that cause the method to be carried out, a data carrier on which the computer program is stored, and a data carrier signal that the computer program or data of the method transmits.

Sunglasses are used by people in particular when there is or could be an increased risk of glare or when the brightness of the surroundings exceeds a level that is tolerable for the person's eye. The sunglasses not only avoid the often undesirable glare or reduce brightness, but also information that is provided by a display device, such as a display, a head-up display, an instrument panel, a smartphone, a tablet or the like Display device to be transmitted to the user, changed or influenced in such a way that they cannot be correctly perceived by the user. For example, it can happen that sunglasses, which mainly reduce light in the red and infrared spectral range, cannot perceive warning messages in red by the user or the person to be warned. This can endanger the safety of people and other people and objects, especially when handling vehicles.

Sunglasses detection devices are known in the prior art for determining whether or not a driver is wearing sunglasses.

In the DE 102015219111 A1 discloses a method for controlling lighting of operating elements in a motor vehicle with an interior camera for recording a driver. In the method, a restriction in perception of the driver, such as glare or sunglasses, is determined and the brightness of the control elements is then increased.

In the CN 103465825 A a method is also disclosed in which the illuminance of a vehicle-mounted display is increased when it is determined that the driver is wearing sunglasses. This is determined either by the fact that the detected face area with sunglasses is reduced compared to the face area without sunglasses, or that the area with sunglasses detected as eyes is enlarged compared to the area without sunglasses detected as eyes.

From the JP 2011145863 A a method is known with which the detection accuracy of a center point determination of the face of a driver who wears sunglasses is improved. For example, the driver's face is illuminated by a light source and a center point is calculated based on the enlarged reflective surface of the sunglasses lenses.

From the JP 2008224565 A a method is known in which the condition of a person's eyes can be determined. A brightness distribution is used to determine whether the person has their eyes open, whether the eyes are closed or whether the person is wearing sunglasses.

In the prior art, however, it is only examined whether the driver is wearing sunglasses or not. This is an unspecific analysis that leads to an unspecific adjustment that is unsuitable in individual cases and possibly even irritating for the driver. This endangers driving safety. A security enhancing solution is desirable.

Perception restrictions caused by sunglasses can lead to incorrectly assessed situations, especially in traffic, and thus to increased risks for people and objects.

The method according to the invention has the steps “analysis of the detected sunglasses” and “adjustment of the display device based on the result of the analysis of the detected sunglasses”. By analyzing the sunglasses, properties are determined which can be used when adjusting the display device in order to improve the perception of the user of the sunglasses of the display device or of parts of the display device. This has the advantage that the display device is adapted to the properties of the sunglasses and an improved perception of the display device is achieved for the user of the sunglasses.

According to the invention, the properties of the sunglasses are analyzed and the change in the lighting of the operating elements is changed in relation to the properties of the sunglasses.

The inventors of the present invention have found that it is of great importance to detect, collect and evaluate the properties of the sunglasses in order to adapt display devices to the changed perception of the user.

Furthermore, it is proposed according to the invention that when analyzing the detected sunglasses, the steps “sending a signal in the direction of the detected sunglasses”, “recording a reaction of the sunglasses to the sent signal” and “determining at least one characteristic property of the sunglasses based on the sent out signal” Signal and the recorded reaction ”.

As a result, the properties of the sunglasses can be recognized in a particularly advantageous manner. In particular, because the properties of the signal are known and these are changed by the sunglasses, the various properties of sunglasses and display devices can be dealt with particularly well.

It is also proposed that the signal be emitted by a light source or an antenna or by both. The light source can be designed to emit an electromagnetic signal with different properties, such as an emission in a specific spectral range, a specific wavelength, a specific polarization or other properties of an electromagnetic signal. The spectrum can be composed of a single region or of different regions and can comprise at least one of a multispectral region, an IR region, a visible region and a UV region. The antenna can transmit an electromagnetic signal of at least one of a radio wave range, a microwave range, and a millimeter wave range, for example.

The different spectral ranges each have their own advantages. For example, the emission in the radio wave, microwave, millimeter wave, IR and UV ranges is generally imperceptible to a user and therefore cannot disturb the user or other people. The visible areas cover the areas of the user's ability to perceive and can thus not only show the absorption or reflection capacity of the sunglasses particularly well, but are also particularly relevant for the adjustment of the display device.

It is also provided that the reaction of the sunglasses to the transmitted signal is recorded by a recording unit. The recording unit is advantageously designed to detect at least one of the areas of the transmitted signal. The recording unit can thus be specially designed for the light source and the antenna as well as the possible reactions of sunglasses.

The analysis of the detected sunglasses includes the further steps of “taking a picture”, “comparing the taken picture with data stored in a database” and “determining characteristic properties of the detected sunglasses from the taken picture and the stored data”. The recording is made with a recording unit. The image made and the data stored in the database enable a particularly advantageous comparison and a simple determination of the properties of the sunglasses. The recording unit can in particular be designed as a camera or as an electromagnetic short-range reader. A design as a camera has the additional advantage that the recording can also be used for other purposes and an already existing camera, for example an interior surveillance system or a video system, can also be used. The design as an electromagnetic short-range device enables particularly simple and advantageous detection, in particular because primarily only the distance to the reading device is important and complete or partial covering of the sunglasses does not necessarily interfere with detection. In particular, if the electromagnetic short-range device has several antennas, it is possible to determine the position of sunglasses, for example via triangulation.

Provision is also made for the detected sunglasses to be contained in the image made and for the data stored in the database to be images of various sunglasses. This enables a comparison and a simple determination of the properties of the sunglasses.

As an alternative or in addition, it is provided that the image made is a recording comprising the detected sunglasses and that the data stored in the database are data from the vehicle occupant. This enables a particularly advantageous comparison and a simple determination of the properties of the sunglasses.

The data of the vehicle occupant are preferably data from the iris, a retinal scan or a face recognition method. These are advantageously suitable, inter alia, for authentication and / or for activating and / or unlocking functions, in particular vehicle functions. This data is generated regularly and is therefore used for other functions. This enables a particularly advantageous comparison and a simple determination of the properties of the sunglasses.

Furthermore, a code belonging to the sunglasses can be on the created recording, in particular an optical code such as a QR code, or a code based on an electromagnetic short-range system, such as an RFID code and related data stored in a database . This enables a particularly advantageous comparison and a simple determination of the properties of the sunglasses.

An adjusting device which is suitable for carrying out the method described above is advantageously also provided. The adjusting device comprises a receiving unit and at least one of a transmitting unit, a communication device and a computing unit. The adjustment device can thus be flexibly configured for different requirements and designs. In addition, the advantages of the above method are also transferred to the adjustment device.

The adjustment device can in particular comprise tunable signal sources, in particular light sources such as LEDs, OLEDs, arc light sources, IR emitters and other suitable signal sources.
The adjustment device can in particular also comprise tunable recording units, such as CCD or CMOS sensors. The signal sources and / or the recording units are preferably combined with materials and components that allow or improve the tunability. In particular, these can be filters, microsystems (MEMS) and nanosystems (NEMS), which can in particular include a tunable cavity, electronic and acoustic modulators, in particular electro-optical or acousto-optical modulators, frequency combs, signal conductors, in particular optical fibers, reflectors, gratings and others for selection materials and components suitable for certain areas of a relevant property.

According to the invention, a vehicle is also provided which comprises such an adjusting device or which uses the above method. In this way, the restrictions on perception caused by sunglasses for the users of the vehicle can be reduced or compensated, which can be particularly advantageous in road traffic in particular. In addition, the advantages of the above method are also transferred to the vehicle according to the invention.

In addition, a computer program according to the invention is provided which comprises commands which cause the adjustment device or the vehicle to carry out the method. The computer program is a flexible and easy to retrofit and upgrade option for implementing the method.

A data carrier signal according to the invention is also provided that transmits the computer program according to the invention and the data described above. As a result, the use and transmission of the computer program and the data can be implemented flexibly and easily regardless of stationary conditions.

Furthermore, a data carrier according to the invention is provided on which the computer program for carrying out the method is stored. As a result, the computer program can be easily and flexibly retrofitted, modified and executed.

The method according to the invention can also be used, for example, to compensate for an incorrect or changed color perception triggered by sunglasses.

Sunglasses are also referred to here in particular as sunglasses, as these are primarily responsible for the change in perception. It can also happen that, at first glance, there is no difference between two sunglasses models, but the properties of the sunglasses lenses differ in at least one area. This is advantageously also recognized by analyzing the detected sunglasses.

Properties of sunglasses can generally include all the features of sunglasses, such as color, shape, size, texture, optical properties, such as in particular light refraction, absorption and transmission, mechanical properties, such as in particular hardness, resistance and elasticity. The properties of the sunglass lenses are determined in particular by the material, such as glass, plastic or other materials, by the shape, the cut and the coating. A subset of the properties of sunglasses form the relevant properties.

Relevant properties of sunglasses are properties on the basis of which the perception of the display device for the user can be directly improved. Since the deterioration of the perceptual ability of the display device is primarily based on the ability of the sunglasses to weaken or block optical radiation, the relevant properties of sunglasses are those that are directly related to the changes caused by the sunglasses and thus directly allow the Adapt properties of the emission of the display device in order to bring about improved transmission on the sunglasses. For example, are such relevant properties Transmission, reflection or absorption curves, values and ranges for properties such as wavelength, frequency, intensity, polarization, pulse duration and energy density. It is important in this context that the relevant properties of some sunglasses can change. This can be particularly dependent on external factors such as temperature, light spectrum or light intensity. This can or must be taken into account when adapting the display device. The relevant properties can be checked periodically or continuously in order to identify changes in the relevant properties. Alternatively or additionally, information arriving from other sources, in particular through recording units or via a communication interface, can determine those external factors that change the relevant properties of the sunglasses or that can be used to determine that those external factors that change the relevant properties of the sunglasses have changed, change or will change, it can be deduced that the relevant properties of the sunglasses have changed, change or will change. An example of such changing sunglasses are self-tinting sunglasses.

Further features of the present invention will become apparent from the following description and the appended claims in conjunction with the figures.

Figure list

• 1 a and 1 b show schematically the person detection and sunglasses detection known in the prior art for a vehicle;
• 2 shows a flow chart of a method according to the invention;
• 3a to 3c show a schematic sectional view of a vehicle according to the invention;
• 4th shows a schematic representation of a possible analysis situation;
• 5a and 5b show exemplary sunglasses in a two- or three-dimensional coordinate system;
• 6th shows an exemplary functional diagram; and
• 7th shows a schematic sectional view of a vehicle according to the invention.

Figure description

In the 1 a is schematically a vehicle 1 as shown in the prior art, in which at least one person P , here five people as an example P1 - P5 , which are detected by a (not shown) person detection device, as already known in the prior art. This already known detection can now also be particularly distinguished by the fact that it also includes a classification, marking and further observation of the detected people, but also of as yet undetected people, of objects and free spaces in which people could also be.

In 1b is schematically the starting situation 1a shown in the example, three of the five people wearing sunglasses S1- S3 wear. A sunglasses detection device (also not shown here) detects, for example, as described in the prior art, whether one of the detected persons P1 - P5 wearing sunglasses.

2 shows a flow chart of a method according to the invention. There are various options in it, such as properties of sunglasses S. can be determined. After in step 21st sunglasses S. was detected in a person is shown in step 22nd the analysis carried out. The analysis is carried out based on an analysis method. As an analysis method, at least one is from a design recognition 22a , Code recognition 22b , active detection 22c , Comparison recording 22d and data comparison 22e , intended.

With the design recognition 22a a recording is made on which the sunglasses S. is included. An analysis program analyzes the recording and extracts features of the sunglasses from it S. , in particular features such as shape, color, size, characters, symbols, such as brands, and design elements that can be characteristic of certain sunglasses or their manufacturers. This can also include signs and features that are not visible or verifiable with the naked eye, in particular security features that identify the origin or originality of the sunglasses S. should verify, as well as changing features, in particular features dependent on the perspective. In particular, these can be at least one of the properties from holographic, kinematic, fluorescent, phosphorescent, optically variable, light-dependent, scattering, glossy and transparent.

A plurality of recordings are preferably made, in particular from different angles. This can be realized by several recording devices, but also by several consecutive recordings. In particular, when the person or the person's head is moving, several recordings can be made different angles can be realized. Recordings can also be made during the initial process, stored in a memory and then retrieved again if necessary.

With code recognition 22b will one look at the sunglasses S. located electronic and / or optical code is used to protect the sunglasses S. to identify or determine the properties of the sunglasses. On the one hand, information about the sunglasses can be stored on an electronic component, such as a radio frequency identifiable component (RFID component, Radio-Frequency IDentification) or a near-field communication chip (NFC chip, Near Field Communication) S. , in particular a clear model identification and / or information about the properties or the relevant properties of the sunglasses S. stored and read out during code recognition. The other hand can be on the sunglasses S. there may also be an optical code, such as a barcode, a QR code or a hologram, on which information about the sunglasses is present S. , in particular a clear model identification and / or information about the properties or the relevant properties of the sunglasses S. are stored and which can be read out during code recognition.

With active detection 22c an active signal is sent out by the adjustment device and a reaction from the sunglasses S. recorded. Properties of the sunglasses can be determined based on the difference between the transmitted signal and the recorded reaction S. , especially relevant properties of the sunglasses S. , determine. For example, a signal source that can send out signals with different properties, in particular wavelengths, polarizations, intensities or pulse durations, allows the sunglasses to react S. record depending on the transmitted signal properties. For example, a light source is such a type of signal source and the wavelength is such a signal property. This can show, for example, that there are wavelength ranges in which the sunglasses S. is more permeable or transparent, and wavelength ranges in which the sunglasses S. mostly reflected or absorbed. This can all be applied analogously to other properties of the transmitted signal.

At the comparison recording 22d becomes a shot of the person wearing sunglasses S. prepared. An analysis program analyzes the recording and compares it with a recording of the same person without sunglasses S. . This shot without sunglasses S. can be requested from the adjustment facility. So can the user of the sunglasses S. An output device indicates acoustically or visually that a recording without sunglasses S. is needed. This recording can also be recorded during another process and then used for the analysis. For example, a retina or face scan can be used to identify the person or to activate a function without sunglasses S. be performed. Such an image can also already be stored in a memory, in particular a vehicle memory, in a database or on a mobile terminal of the user and made available for analysis. Based on the difference between shooting people with and without sunglasses S. can be properties of the sunglasses S. , especially relevant properties of the sunglasses S. , determine.

When comparing data 22e becomes a shot of the person wearing sunglasses S. prepared. An analysis program analyzes the recording and compares it with data from the same person. This can be, for example, data from ID cards, purchases, inventory lists, data available on the Internet, medical data, body data, such as data from a 3-D scan, a face scan and the like. Properties of the sunglasses can be determined based on the data and the analyzed recording S. , especially relevant properties of the sunglasses S. , determine.

All of the data obtained by the aforementioned analysis methods can be used in step 23 with the data of a database 23a be matched. There are in the database 23a Data 231a - 231z , in particular various sunglasses with their properties and, in particular, their relevant properties. The properties relevant to the adaptation of the display device can then be performed in step 24 to be determined.

Alternatively or additionally, the data generated by the code recognition 22b who have favourited active detection 22c , the comparison shot 22d or the data comparison 22e can also be used directly to determine the properties of the sunglasses that are relevant for the adaptation of the display devices S. in step 24 to determine.

In step 25th can then use the display devices based on the relevant properties of the sunglasses S. be adjusted. On the one hand can be the areas where the sunglasses S. is more permeable, then preferably emitted by a display device so that the perception of the display device is improved. On the other hand, there can also be areas that are covered by the sunglasses S. are mostly blocked, then amplified by a display device so that the Perception of the display device in these areas is improved. Furthermore, it is possible to avoid the largely blocked areas essentially completely and instead switch to other, not so strongly blocked areas.

In general, it is particularly advantageous if the properties of sunglasses can be examined spectrally. This can be done, for example, in that the light source emits light in a certain spectral range and the recording unit is sensitive in all these spectral ranges or over a large spectral range, whereby the width and position of the spectral range of the emitted light can advantageously be varied. If the recorded image consists of several images, each assigned to a spectral range with a certain width and position, it is possible to determine the transmission of the sunglasses as a function of the wavelength or the frequency of the light. However, it can also be provided that the light source emits a fixed and advantageously a very broad spectral range, such as the spectral range visible to humans, and the recording unit, similar to a spectrometer, emits the detected light not only in terms of position, but also with regard to other properties such as wavelength or frequency, polarization, direction and / or intensity.
Based on the specific properties of the sunglasses or the sunglasses, display devices of the vehicle can then be adapted to the perception of the people changed by the sunglasses. Display devices that are specifically and / or individually intended for certain people can only be adapted to the sunglasses worn by these people. Alternatively and / or additionally it can be provided that the display devices are operated in a pulsed mode. In this pulsed mode, the display device can alternately display different display profiles. Individual display profiles are matched to the properties of individual sunglasses. By rapidly changing different display profiles, the properties of different sunglasses can be taken into account and thus the perception of the display device can be improved for several people at the same time. This is possible in particular because the human eye has a certain inertia.

The decision for which display device or which part of a display device is to be adapted which of the properties can also be made as a function of a recognized viewing direction or head orientation of the driver or another user. A viewing direction can also be recorded by a camera, in particular an interior camera. In doing so, it is determined to which display elements the reduced perceptual ability relates and then a particularly advantageous, restricted adaptation of the properties for individual display elements is carried out. For example, only the brightness or the color of the display elements that the user is currently viewing are changed. In this way, in particular, a possible distraction of the driver or another user due to an avoided change in the properties of other display elements can be excluded or reduced. As a result, different display elements on a single display device for different users whose sunglasses have different properties can be changed simultaneously in an advantageous manner. Of course, the change in the properties of the display elements can also be maintained for a certain period of time, even if the user changes the viewing direction. For example, the changed properties of the display elements can be retained if the user briefly looks at the road. The viewing direction can, for example, also only determine which display element is currently relevant to the user and thus decides which display element needs to be adapted to the properties. A viewing direction of the driver is therefore advantageously recorded and the properties of the display elements are adapted as a function of the recorded viewing direction of the user. It can also be provided that the users are assigned a priority level and that the adaptation of display devices and display elements is carried out based on the priority level of the user, the relevance of the information to be displayed, the relevance of the display device or the display element and the viewing direction of the user .
Alternatively, it can also be provided that the display device is adapted to a common value of all sunglasses that are worn by people inside the vehicle.

The 3a shows schematically a side view of a vehicle according to the invention 9 , in which a person P inside the vehicle one sunglasses S. wearing. There is also an adjustment device in the vehicle 3 . The adjustment device 3 is designed to be a pair of sunglasses detected by the sunglasses detection device (not shown) S. analyze to properties of sunglasses S. to determine. For this purpose, it has a receiving unit 7th on to a signal s2 to receive from the sunglasses and / or to take a picture of the interior.

The 3b also shows schematically a side view of the vehicle according to the invention 9 , in which a person P sunglasses inside the vehicle S. wearing. There is also an adjustment device in the vehicle 3 . The adjustment device 3 is designed to be a pair of sunglasses detected by the sunglasses detection device (not shown) S. analyze to properties of sunglasses S. to determine. To do this, it has a transmitter unit 5 on that a signal s1 towards the sunglasses S. sends out, and a recording unit 7th to get a signal s2 in response to the transmitted signal s1 to recieve. In the in 3b The illustrated embodiment comprises the adjusting device 3 spatially separated transmission units 5 and recording units 7th . The transmitting and receiving units 5 , 7th can also be designed as part of another vehicle device or a mobile terminal and from the adjustment device 3 shared and / or controlled

The 3c also shows schematically a side view of the vehicle 9 and adjustment device 3 . The adjustment device 3 is designed here to produce a recording, in particular a recording of the interior of the vehicle 9 , of people and / or of sunglasses. The adjustment device 3 can essentially also be designed in one piece, as shown here, so that the transmission unit 5 to send the signal s1 and the pickup unit 7th to receive the signal s2 are included in a common housing.

Furthermore, the adjusting device 3 comprise a computing unit which is derived from the transmitted signal s1 and from the received signal s2 and / or the relevant properties of the sunglasses from the recordings S. can determine.

Alternatively or additionally, the analysis unit can also comprise a communication device which can communicate with internal or external systems and services, in particular with external data beacons and servers.

So that the adjustment device can analyze not only sunglasses of a specific vehicle occupant, but also sunglasses of other vehicle occupants, the transmitting unit can or can 5 and / or the receiving unit 7th be positioned in the vehicle so that the signal s1 can essentially reach all areas in the vehicle and the signal s2 can essentially be received from all areas in the vehicle, but at least all positions in which a vehicle occupant can sit. In this context, it can also be taken into account that the vehicle occupants can assume different seated positions, especially in autonomous vehicles, in particular lying down or positioned against the direction of travel. The spatial coverage can also be achieved in that there are several transmission units 5 and several recording units 7th that are distributed throughout the vehicle.

4th is a schematic front view of a possible analysis situation in which recordings can be made. There are three people P1 - P3 shown, each with a pair of sunglasses S1 - S3 wear. The sunglasses differ S1 - S3 among themselves. While sunglasses S2 a different shape than the sunglasses S1 , S3 has, has sunglasses S3 three different areas B1 - B3 on. The properties, especially the optical properties, in the areas B1 - B3 differ from each other. From the people P1 - P3 and the sunglasses S1 - S3 a recording can be made. The shots can have different properties of the sunglasses S1 - S3 to be determined.

In one embodiment, the images of the sunglasses S1 - S3 compared with a series of images of sunglasses that are stored in a database. Properties such as color, shape or size can be used to find the correct match for the sunglasses S1 - S3 found in the database. Further properties can then be stored in the database, in particular information about the optical properties of the glasses, such as color, color gradients, transmission, absorption, reflection or emission.

Alternatively or additionally, the recordings of the people P1 - P3 with the sunglasses S1 - S3 with recordings of the people P1 - P3 without sunglasses, which can be stored in a database. By comparing the two recordings, you can see the properties of the sunglasses S1 - S3 can be determined, in particular information about the optical properties of the glasses, such as refractive index, transmission, absorption, reflection or emission.

In addition, an analysis of the prevailing light conditions, in particular via intensity, spectral range and / or polarization, can be provided in order to determine the properties of the sunglasses S1 - S3 to support. An analysis of the existing shadows can also be provided in order to determine the properties of the sunglasses S1 - S3 to support.

In 5a is a front view of sunglasses S. and a coordinate system is shown. The coordinate system consists of an X and a Y axis. As a result, each point of the sunglasses can be described by an X and a Y coordinate and various properties of the sunglasses can be localized. For example with point p1 who has the coordinates x2 and y1 owns, certain properties be associated while with point p2 who has the coordinates x1 and y2 possesses certain other properties.

In 5b is also sunglasses S. and a coordinate system is shown. Unlike in 4A however, in addition to the X and Y axes, there is also a Z axis that is orthogonal to the X and Y axes. This enables every point of the sunglasses S. to describe using an X, Y and Z coordinate and to determine or assign one or more properties to each point. In particular, properties such as colors, shapes and optical properties can be localized in order to identify sunglasses through the analysis.

In 6th are three different exemplary functions in a function diagram F1 - F3 shown in which a property E. a pair of sunglasses over a variable K is applied. While at function F1 the property E. over the entire parameter range of the variable K is constant, has function F2 the property E. a definite maximum M. and a wide area to the right and left of the curve in which the property E. not determined or zero. With function F3 there are several local maxima and minima of the property E. over the entire range of values shown from K are distributed. The shape of the functions F1 - F3 is shown here only by way of example and can generally include any combination of function and / or form.
The variable K can take on very different forms. K can be, for example, the distance between two points, a spectrum, in particular a frequency or wavelength spectrum, a polarization direction, an angle or another physical parameter.
The property E. can also take on very different forms. E. can be for example an intensity, an absorption, a transmission, a reflection, a polarization, an emission or another physical parameter. The property can in particular be a property of the glasses of the sunglasses.
In a particularly preferred embodiment, the property is E. a relevant property, such as absorption, and the variable K a spectrum, for example a wavelength spectrum. In this way, for example, the adaptation of a display device to wavelength ranges with a high or low absorption can be improved and thus reduces a possible restriction of perception that the sunglasses cause for a user.

In 7th Figure 3 is a side view of a vehicle according to the invention 9 depicted in which a person P sunglasses S. wearing. The vehicle 9 has an adjustment device 3 on the at least one transmitter unit 5 and a receiving unit 7th includes. Data that the adjustment device 3 are generated via a communication unit 10 , which can be vehicle-bound or non-vehicle-bound, to a station 14th Posted. In 7th stands vehicle 9 with the station 14th via communication signals 11 , which can in particular also include a data carrier signal, in connection. Another example is a relay station 13th interposed, which the communication signals 11 forwards. Relay station 13th can also be a ground station, a satellite and / or another active signal source. station 14th can for example be a data center, a data center and / or a center of another service provider, the data that the vehicle 9 sends, analyzes and processes and / or data that the vehicle 9 required to the vehicle 9 sends. However, the data can also be distributed or processed using edge computing or fog computing.

Data on sunglasses, people and / or a combination of the data on sunglasses and people can also be stored in the vehicle. This has the advantage that a communication connection with a station does not have to be established for every request. Especially when the same people with the same sunglasses drive the vehicle over and over again 1 use, the adjustment device can fall back on preferred data.

Data on the properties of sunglasses can also be stored in a mobile terminal device and / or in the sunglasses themselves. For example, an electronic and / or optical code can be present on the surface of the sunglasses, which code can preferably be recognized by the adjustment device and evaluated directly. The code can be used, for example, to directly assign a serial number and / or a model to the sunglasses, so that the search in a database is made easier. However, the code can also directly describe the properties of the sunglasses, in particular the glasses, so that no search in a database is necessary.

The signals may include at least one of an electromagnetic wave and a sound wave.

The method can also be used outside of a vehicle in order to adapt display devices to the properties of sunglasses that are worn by one or more users of the display devices.

Nowadays there are signal sources and sensors for various purposes in different positions in the vehicle. The next The adjustment device presented below is advantageously designed to access and / or control all of the signal sources and sensors that are already present. Furthermore, a large number of people inside the vehicle also use mobile terminals, such as smartphones, smartwatches, tablets and the like, in particular also a technology that replaces these mobile terminals and which also have signal sources and sensors. The adjustment device is advantageously also designed to connect to these mobile terminals in order to access and / or control the data, signal sources, display devices and sensors.

A particularly advantageous embodiment of a signal source can be implemented in the form of a display device. Display devices are designed to provide information to a person. In particular, this can also be done optically. When providing optical information, the user generally looks directly at the display device. This illuminates the face and especially the eye area. Sunglasses that the user wears are thus located directly between the display and the user. This means that the probability is very high that the user cannot perceive the full lighting and / or a true-color reproduction of the display, since the sunglasses are generally designed to keep light from the user's eyes.

In order to distinguish the areas in which the sunglasses are more permeable or transparent from the areas in which the sunglasses are more absorbent or reflective, the display device can be controlled in such a way that it sequentially outputs a series of displays. The display representations can differ in particular in terms of the parameters intensity, display pattern, color, color composition, wavelength, frequency, display duration, repetitions and / or polarization. If the reactions of the sunglasses to the various displays are recorded by a sensor, an analysis program can determine the relevant properties of the sunglasses directly. In some display devices, such a sensor in the form of a camera is present in the housing or in the frame, so that the user can improve the perception of the display device with such a combination of display device, sensor and analysis program.

List of reference symbols

1

vehicle

3

Adjustment device

5

Sending unit

7th

Recording unit

9

vehicle

10

Communication unit

11

Communication signal

13

Relay station

14th

station

21, 22, 23, 24, 25

step

22a, 22b, 22c, 22d, 22e

Analytical method

23a

Database

231a -231z

Data

24

25th

P, P1, P2, P3, P4, P5

person

S, S1, S2, S3

sunglasses

s1, s2

signal

X, Y, Z

Coordinate axes

p1, p2

Point

x1, x2, y1, y2

Coordinates

F1, F2, F3

function

E.

property

K

variable

B1, B2, B3

Area

M.

maximum

QUOTES INCLUDED IN THE DESCRIPTION

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Patent literature cited

• DE 102015219111 A1 [0004]
• CN 103465825 A [0005]
• JP 2011145863 A [0006]
• JP 2008224565 A [0007]

Claims (10)

Method for adjusting a display device in the interior of a vehicle, comprising the steps of - detection of a vehicle occupant (P); and - detection (21) whether the detected vehicle occupant (P) is wearing sunglasses (S); characterized by the further steps - analysis (22) of the detected sunglasses (S); and adjustment (25) of the display device based on the result (24) of the analysis (22) of the detected sunglasses (S). Procedure according to Claim 1 , characterized in that the analysis (22) of the detected sunglasses (S) includes the further steps - transmission (22c) of a signal (s1) in the direction of the detected sunglasses (S); - Recording (22c) a reaction (s2) of the sunglasses (S) to the transmitted signal (s1); and - determining (24) at least one characteristic property (E) of the sunglasses (S) based on the transmitted signal (s1) and the recorded reaction (s2); having. Procedure according to Claim 2 , characterized in that the signal (s1) is transmitted by a transmission unit (5) which comprises a light source and / or an antenna, the light source being designed to transmit an electromagnetic signal from a multispectral range and / or an IR To emit area and / or a visible area and / or a UV area; and wherein the antenna is designed to transmit an electromagnetic signal of a radio wave range and / or a microwave range and / or a millimeter wave range. Procedure according to Claim 2 or 3 , characterized in that the reaction (s2) of the sunglasses to the transmitted signal is recorded by a recording unit (7), the recording unit (7) being designed to detect at least one of the areas of the transmitted signal (s1). Method according to one of the preceding claims, characterized in that the analysis of the detected sunglasses includes the further steps - taking (22) a picture; - Comparing (23) the recording made with data stored in a database; and - determining (24) characteristic properties (E) of the detected sunglasses (S) from the image made and the stored data; having, wherein the recording is made with a receiving unit (7). Procedure according to Claim 5 , characterized in that (i) the taken picture is a picture comprising the detected sunglasses, and the data stored in the database are data from different sunglasses; or (ii) the taken picture is a picture comprising the detected sunglasses, and the data stored in the database are data of the vehicle occupant, which in particular comprise data of the iris, a retinal scan or a face recognition method; or (iii) the image made is a recording comprising a code belonging to the sunglasses that have been detected and the data stored in the database are data relating to the code belonging to the sunglasses that have been detected. Vehicle (9) which the method according to one of the Claims 1 to 6th executes. Computer program comprising commands that cause the vehicle to follow Claim 7 the method according to one of the Claims 1 to 6th executes. Data carrier signal that at least one from the computer program according to Claim 8 and the data according to one of the Claims 5 or 6th transmits. Data carrier on which the computer program is after Claim 8 to carry out the method according to one of the Claims 1 to 6th is stored.

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