DE102020104354A1 - Method for determining a state of health of an occupant of a vehicle with regard to a motion sickness, determination system and vehicle - Google Patents

Abstract

The invention relates to a method for determining the state of health of an occupant (7) of a vehicle (1), in which at least one acoustic signal of a body part of the occupant (7) is detected with an acoustic detection unit (9, 10, 13, 15, 16) and depending on whether the occupant (7) has motion sickness as a state of health, with the at least one acoustic detection unit (9, 10, 13, 15, 16) acoustic signals from the stomach (18) of the occupant (7) and / or of the intestine (19) of the occupant (7) are detected and depending on these acoustic stomach signals and / or the acoustic intestinal signals, it is determined whether the occupant (7) has motion sickness or the probability of the occupant (7) getting motion sickness. The invention also relates to a determination system (8) and a vehicle (1).

Description

One aspect of the invention relates to a method for determining a state of health of an occupant of a vehicle. In the vehicle, at least one acoustic signal of a body part of the occupant is detected with an acoustic detection unit. Depending on this, it is determined whether the occupant has motion sickness as a health condition. Another aspect of the invention relates to a determination system for a vehicle. Another aspect of the invention relates to a vehicle.

Travel sickness or motion sickness, which is also technically referred to as kinetosis, is the name given to physical reactions such as paleness, dizziness, headache, nausea and vomiting, which can be triggered by unfamiliar movements, for example in a means of transport.

In conventional vehicles that are manually driven by a driver, motion sickness occurs primarily in people who travel as passengers. This can be a front passenger or vehicle occupants in the rear of the vehicle.

Since vehicles will also be operated more and more autonomously in the future, motion sickness can therefore increasingly occur not only among the named, positionally designated vehicle occupants, but also among those vehicle occupants who are seated in the driver's seat in conventional vehicles.

In conventional vehicles that are maneuvered manually by a driver, the latter can be acted upon if a vehicle occupant feels uncomfortable and has motion sickness. In particular, the corresponding driving behavior can then be changed by the driver himself.

Since the comfort for a vehicle occupant is to be improved not only in conventional vehicles maneuvered by a driver, but also in autonomously operated vehicles, the recognition of motion sickness as a state of health of an occupant of a vehicle is very advantageous.

In this context, from the DE 2017 206 012 B3 a method for operating a vehicle is known. It should be recognized there whether a vehicle occupant has or gets motion sickness or so-called motion sickness. In order to be able to evaluate this, movement data from the body or from at least one body part of the vehicle occupant are recorded there with a sensor unit. This can be done with a camera, for example. In addition, vibration sensors, motion sensors, stretch marks, body scales, and pressure sensors can also be used. It is also possible there that a sensor measures, for example, the movement of the buttocks or the body weight of the driver and thus conclusions can be drawn about the movements and vibrations acting on the driver's stomach. However, more detailed evaluations in this regard are not carried out. Therefore, the determination of whether the vehicle occupant has or will develop motion sickness is only possible in a relatively rudimentary manner.

In addition, from the US 2014/0176296 A1 a method and a system for determining travel sickness also of a vehicle occupant in a vehicle are known. The system there can also have a microphone which can generate audio data. In particular, it is provided there that the heartbeat of a vehicle occupant is acoustically recorded by such a microphone. This information is intended to be taken into account in determining whether a vehicle occupant has or will develop motion sickness.

The procedures known from the prior art represent possibilities in which central body parts are not or only insufficiently observed, but which provide a particularly decisive criterion as to whether the vehicle occupant has or will get motion sickness.

The object of the present invention is to create a method, a determination system and a vehicle in which or with which specific body parts of the vehicle occupant are analyzed and based on the assessment of the state of health of motion sickness.

This object is achieved by a method, a determination system and a vehicle according to the independent claims.

One aspect of the invention relates to a method for determining a state of health of an occupant of a vehicle. In the method, at least one acoustic detection unit is used to detect at least one acoustic signal of a body part of the occupant. Depending on this, it is determined whether the occupant has motion sickness as a health condition. With the at least one acoustic detection unit, acoustic signals from the stomach of the occupant and / or acoustic signals from the intestine of the occupant are detected directly. Depending on these acoustic stomach signals and / or these acoustic intestinal signals, it is determined whether the occupant has motion sickness or is with him what likelihood the occupant will get motion sickness. With the proposed method, very specific body parts, namely the stomach and / or intestines, are analyzed directly. This analysis is very specific, namely acoustically. By evaluating possible acoustic signals from precisely these two body parts, conclusions can be drawn more precisely whether the vehicle occupant has motion sickness. In particular, it can also be used to improve the assessment of whether the occupant will get motion sickness. Since the stomach and / or the intestines generate very specific acoustic signals, they can be taken into account particularly advantageously when assessing motion sickness. This improves the accuracy of the statement about possible or potential motion sickness.

Furthermore, through such an acoustic analysis of very specific body parts, the vehicle occupant is also affected as little as possible by such a procedure.

It is preferably provided that an acoustic stomach signal and / or at least one acoustic bowel signal is detected by at least one acoustic detection unit on a vehicle seat of the vehicle. This local positioning of a detection unit achieves a very specific local proximity to a position of the body parts of an occupant that is usually to be expected. This enables particularly precise acoustic detection. In an advantageous embodiment it is provided that an acoustic stomach signal and / or at least one acoustic bowel signal is detected by at least one acoustic detection unit on a seat belt of the vehicle seat on which the occupant is sitting. This also creates a possibility to enable a particularly precise acoustic analysis. By means of these specific positions of at least one respective acoustic detection unit, a possibly falsifying acoustic ambient signal can also be at least clearly pushed into the background due to the local proximity. Relatively quiet acoustic signals from the stomach and / or the intestines can also be detected through these local positions. In addition, these specific positions of acoustic detection units are also such that they do not disturb a vehicle occupant. Nonetheless, the positions are such that they are inevitably very close to the vehicle occupant when the latter is properly seated in the driver's seat.

In an advantageous embodiment it can be provided that at least one acoustic detection unit is arranged on a backrest of the vehicle seat. Additionally or instead, at least one detection unit can be arranged on opposite side cheeks of the backrest, which are oriented towards the front and which laterally stabilize the upper body of the vehicle occupant. It is thus possible for signals to be recorded acoustically from the back and / or from the side. Particularly in the case of a seat belt, it can be provided that at least one acoustic detection unit is attached to such a belt section, which runs across the vehicle seat in the area of the pelvis when the seat belt is put on. Additionally or instead, at least one acoustic detection unit can be formed on a section of the seat belt which, coming from one shoulder, runs across the upper body to the opposite side. An acoustic detection unit, especially if it is arranged on a seat belt, can be designed to be very flat. It can be arranged non-destructively detachable on the seat belt. However, it can also be designed to be integrated into the seat belt.

In particular, an acoustic detection unit is designed as a microphone. For example, it can then also be a seat belt microphone if it is arranged in a seat belt. Additionally or instead it can also be possible for at least one microphone to be formed on or in the seat part of the vehicle seat.

In particular, it is provided that ambient noises in the vehicle and / or ambient noises outside the vehicle are filtered out of the recorded acoustic signals from the evaluation of the recorded acoustic signals. They are not taken into account for determining the state of health. For the determination of the state of health, only the acoustic signals filtered in this regard are then taken into account. In particular, such ambient noises that were generated in the time interval of the signal detection are filtered out. The analysis can be made more precise by such a procedure. Falsifications of the acoustic signal, which occur due to such ambient noise, can thereby be eliminated.

It is preferably provided that at least one acoustic reference noise is provided for a stomach noise, in particular typical of motion sickness, and / or at least one acoustic reference noise for an intestinal noise, in particular typical of motion sickness. In particular, at least one such reference signal is compared with the at least one recorded acoustic signal during the evaluation. This is a further, very advantageous embodiment, since it enables the precision of the statement about motion sickness to be increased again. Since the reference signals provide precise information on how Stomach noises and / or intestinal noises sound, in particular in the presence or impending travel sickness, so this procedure can further increase the precision of the statement about the state of health with regard to travel sickness.

A first acoustic reference noise is preferably provided for a stomach noise that is typical in particular for motion sickness in a first driving situation of the vehicle and / or a first movement situation of the vehicle and / or a first occupant situation, and at least one second acoustic reference noise is provided for a, in particular for Travel sickness typical stomach noise in a different second driving situation of the vehicle and / or a different second movement situation of the vehicle and / or an occupant situation different from the first one. When an acoustic signal is detected, the current and / or past and / or expected future driving situation of the vehicle, and / or the current and / or past and / or expected future movement situation of the vehicle, and / or the current and / or past occupant situation determined. Depending on this current and / or past and / or expected future driving situation of the vehicle, and / or the current and / or past and / or expected future movement situation of the vehicle, and / or the current and / or past occupant situation, one of the Reference noises are selected and used as a basis for comparison with the acoustic signal, so that depending on this comparison it is determined whether the occupant has motion sickness or with what probability the occupant will get motion sickness. The same can be done with regard to the intestines. Using these approaches, very specific scenarios can be assessed that suggest motion sickness or that will cause motion sickness in the future.

• - ein autonomer Betrieb des Fahrzeugs oder ein manueller Betrieb des Fahrzeugs durch einen Fahrer;
• - eine Tätigkeit des Insassen im Fahrzeug;
• - ein Verlauf der Fahrbahn, auf welcher sich das Fahrzeug bewegt;
• - eine Position des Fahrzeugs.

A past and / or current and / or expected future driving situation of the vehicle is preferably taken into account to determine the health status of the occupant with regard to motion sickness; in particular, a driving situation is characterized by at least one of the following criteria:

• - an autonomous operation of the vehicle or a manual operation of the vehicle by a driver;
• - an occupant activity in the vehicle;
• a course of the roadway on which the vehicle is moving;
• - a position of the vehicle.

• - Geschwindigkeit des Fahrzeugs;
• - Dämpfung des Fahrzeugs;
• - Neigung des Fahrzeugs.

A past and / or current and / or expected future movement situation of the vehicle is preferably taken into account to determine the health status of the occupant with regard to motion sickness; in particular, a movement situation is characterized by at least one of the following criteria:

• - the speed of the vehicle;
• - damping of the vehicle;
• - vehicle inclination.

• - Zeit der Nahrungsaufnahme des Insassen;
• - Art der Kleidung des Insassen, insbesondere im Bereich des Rumpfs des Insassen;
• - Klima im Innenraum des Fahrzeugs;
• - Geschlecht und/oder Alter des Insassen.

For the determination of the occupant's state of health with regard to motion sickness, a past and / or current and / or expected future occupant situation is preferably taken into account; in particular, the occupant situation is characterized by at least one of the following criteria:

• - time of ingestion of food;
• - the type of clothing worn by the occupant, particularly around the occupant's torso;
• - climate in the interior of the vehicle;
• - Gender and / or age of the occupant.

In an advantageous embodiment, an acoustic signal is detected with a first detection unit in the vehicle. At least one second acoustic signal is detected with a second detection unit in the vehicle. The two acoustic signals are weighted as a function of the times at which they were detected and / or as a function of the positions of the detection units in relation to the occupant, in particular his stomach and / or intestines, and / or relative to one another. This weighting is taken into account to determine whether the occupant has motion sickness or the probability that the occupant will get motion sickness. In this way, in the case of a number of recorded acoustic signals, these can also be evaluated and a related priority list of the recorded acoustic signals can be generated. This makes the assessment more precise, since more suitable acoustic signals may be considered with a higher weighting than others.

In one embodiment, the weighting can take place as a function of at least one location of an acoustic detection unit relative to the abdominal area of the occupant. For example, the acoustic signal of the detection unit closest to the abdominal area can have the highest weighting. It can also be the case that an acoustic signal from an acoustic detection unit, which is arranged on a belt section and thus rests against the abdominal area from the front, is given the highest weighting. There can be a weighting too take place in such a way that the loudest acoustic signal has the highest weighting. Likewise, an acoustic signal can be given the highest weighting that was recorded first.

When evaluating an acoustic signal, it can be taken into account, for example, not only with the weightings, whether the occupant is wearing specific clothing, such as a coat or a jacket. In particular, whether this is closed in the abdominal area. For example, this can be recorded with the camera. For example, the acoustic attenuation of the acoustic signal by this item of clothing can then be taken into account.

It is also possible for an acoustic signal from the stomach to be distinguished from an acoustic signal from the intestine. In one embodiment it can be provided that an acoustic signal of the stomach has a higher weighting than the acoustic signal of the intestine.

In an advantageous embodiment, if at least two acoustic detection units, which are arranged in particular on different components of the vehicle, are present, a time sequence can be specified in which the units detect signals one after the other. You can also acquire signals at least temporarily at the same time.

Another aspect of the invention relates to a determination system for a vehicle for determining a health status of an occupant with regard to a possible motion sickness. The determination system has at least one acoustic detection unit and an evaluation unit. The determination system is designed to carry out a method according to the above-mentioned aspect or an advantageous embodiment thereof. In particular, this method is carried out with the determination system.

Another aspect of the invention relates to a vehicle with a determination system according to the aspect mentioned above. The vehicle is in particular a motor vehicle. For example, it can be a passenger car or a truck.

In particular, the method is carried out in an at least partially autonomous, in particular fully autonomous, vehicle. This procedure is advantageous precisely when, in such vehicles, the vehicle occupants become less aware of their surroundings. It can thus be achieved that vehicle occupants in such autonomous vehicles can pursue even more other activities in vehicles, such as reading, watching TV or the like, and still reduce the probability that they will fall ill with motion sickness. The utility of the vehicle in such an autonomous driving process can thereby be improved for a vehicle occupant. This makes it easier to carry out secondary activities while driving, which is even easier with regard to motion sickness. In particular, this also enables improved occupant detection to be made possible and thus personalized and situation-dependent functional offers to be made possible.

This also means that the method enables information to be output to the vehicle occupant as a function of the fully automatic determination of the state of health. For example, depending on the result of the determination, information can be transmitted to him that he is already suffering from motion sickness or will suffer from motion sickness for the foreseeable future. In this way, the vehicle occupant can, if necessary, still react to this himself in order to be able to avoid this occurrence of motion sickness.

In addition, it is also possible for the current activity and / or activity of the occupant in the vehicle to be recorded. For example, this can be done via a registration unit. This detection unit can be at least one camera, for example. In this context, it can be analyzed whether this activity and / or activity of the occupant should be continued or at least reduced and / or changed in order to be able to reduce or avoid the existing motion sickness and / or the potential future motion sickness . In particular, with the method it is also possible that when motion sickness is recognized or a certain probability that the occupant will get motion sickness, suggestions are made as to how the vehicle occupant can reduce and / or avoid this. In particular, specific seating positions and / or viewing directions and / or activities can be proposed to him in this context. A health maintenance system can thus also be provided with the determination system in a quasi-automated manner. It is thus not only recognized whether motion sickness is present or will occur, but how it can then also be reduced or ended or avoided in principle.

Such auxiliary information can be output acoustically and / or optically.

It is also possible for a mobile detection unit to be used as the acoustic detection unit. This can be in the vehicle can be taken and stolen from the vehicle. Such a detection unit can be a multifunction device in an advantageous embodiment. This means that, in addition to the acoustic detection of noises, it is also designed to have at least one other different function. For example, such a detection unit can be a communication terminal, such as a mobile radio terminal. In particular, the vehicle occupant can then use his own mobile radio device himself in order to be able to record acoustic signals in this regard. For this purpose, it can be provided, for example, that a receiving area, such as a recess with a holder or other insertion pocket, is provided on the vehicle seat and / or the safety belt in order to be able to attach such a device. This can then communicate wirelessly with an evaluation unit of the determination system.

An acoustic detection unit is preferably arranged in the region of the abdomen when an occupant is sitting on a vehicle seat.

As already explained above, it can be provided that ambient noise and noise are filtered out of the recorded acoustic signal by means of evaluation algorithms. It can also be provided that the acoustic signals are contextualized. In an advantageous embodiment, this includes the consideration of individual reference signals for intestinal noises and / or stomach noises that represent current specific driving situations, such as autonomous driving or manual driving or secondary activities of the occupant in the vehicle or the course of the road or GPS knowledge about the vehicle . In addition, information relating to the current state of the vehicle occupant, for example whether he has just eaten or drunk immediately before the detection or in a specific time interval before the detection, can be taken into account in this regard. This can be detected, for example, by a detection unit such as a camera in the vehicle. The current state of the vehicle, such as the driving speed and the damping, can also be taken into account in this regard. All these aspects can be presented with reference signals in order to be able to analyze and evaluate the current actual situation of the vehicle occupant even more precisely.

• 1 eine schematische Darstellung eines Ausführungsbeispiels eines erfindungsgemäßen Fahrzeugs mit einem Ausführungsbeispiel eines erfindungsgemäßen Bestimmungssystems; und
• 2 eine schematische Frontansicht auf einen Insassen eines Fahrzeugs mit angelegtem Sicherheitsgurt.

An exemplary embodiment of the invention is described below. This shows:

• 1 a schematic representation of an embodiment of a vehicle according to the invention with an embodiment of a determination system according to the invention; and
• 2 a schematic front view of an occupant of a vehicle with the seat belt fastened.

The exemplary embodiment explained below is a preferred embodiment of the invention. In the exemplary embodiment, the described components of the embodiment each represent individual features of the invention that are to be considered independently of one another, which also develop the invention independently of one another and are therefore also to be regarded as part of the invention individually or in a combination other than the one shown. Furthermore, the described embodiment can also be supplemented by further features of the invention that have already been described.

In the figures, functionally identical elements are each provided with the same reference symbols.

In 1 is a vehicle 1 shown. The vehicle 1 is here a motor vehicle, in particular a passenger car. The vehicle 1 has a passenger compartment 2 on. In this passenger compartment 2 is at least a vehicle seat 3 arranged. This has a backrest 4th and a seating area 5 on. In particular, the backrest 4th Sidewalls 6th on, of which in 1 only one can be seen. This sidewall 6th is from one side edge of the backrest 4th protruding to the front. This becomes an occupant of the vehicle 1 that is on the vehicle seat 1 sits with his upper body supported on the side.

The vehicle 1 also has an electronic identification system 8th on. This electronic identification system 8th has at least one acoustic detection unit.

In particular, the determination system 8th several acoustic detection units. In the exemplary embodiment shown, it is provided that at least one acoustic detection unit 9 on the backrest 4th and / or at least one acoustic detection unit 10 on the side cheek 6th is arranged. In particular, the acquisition unit 9 and or 10 viewed in height direction at stomach level of an occupant 7th positioned. Additionally or instead it can be provided that at least one acoustic detection unit is attached to a seat belt 11 of the vehicle 1 is arranged. The safety belt 11 can, in one embodiment, a belt section 12th exhibit. This is at hip height as a kind of lower band on one Side of the vehicle seat running to the opposite side of the vehicle seat. It can be provided that in this belt section 12th at least one acoustic detection unit 13th is arranged.

In one embodiment, the seat belt 11 another strap section 14th on. In the exemplary embodiment, this runs from an upper shoulder area of the occupant 7th across the chest and stomach to an opposite lower end. It can be provided that also in this belt section 14th at least one acoustic detection unit 15th is arranged. There can also be a plurality of acoustic detection units and / or a plurality of acoustic detection units can be arranged in each of the specifically named components.

The acoustic detection units 9 , 10 , 13th and 15th can be permanently installed in the functional components mentioned and thus cannot be removed. However, they can also be detachably arranged thereon in a non-destructive manner. It can additionally or instead also be provided that at least one acoustic detection unit 16 in the seat part 5 is installed.

The acoustic detection units are preferably arranged in such a way that they are in an area 17th of the inmate 7th are relatively positioned in which a stomach 18th and / or an intestine 19th of the inmate 7th are arranged when this is on the vehicle seat 3 sits. The acoustic detection units 9 , 10 , 13th , 15th , 16 are especially microphones. You can hear acoustic signals from the stomach 18th and / or the intestine 19th detect.

In the exemplary embodiment shown, it can be provided that the vehicle 1 manually by an occupant 7th to be led. Preferably the vehicle is 1 but a fully autonomous vehicle. In one such embodiment, the occupant is 7th not a driver, just a non-maneuvering vehicle occupant.

The determination system 8th In an advantageous embodiment, it also has an evaluation unit 20th on. The evaluation unit 20th can in the vehicle 1 be arranged. However, it can also be arranged externally. It is for wireless communication with the registration units 9 , 10 , 13th , 15th , 16 educated. However, wired communication can also be provided at least in part. At least one registration unit 9 , 10 , 13th , 15th , 16 can be part of a multifunction device. This multifunction device can, for example, also be designed for other telecommunications. It can be a portable cellular terminal.

The vehicle 1 can also have at least one optical detection unit 21 exhibit. This can be, for example, a camera that is sensitive in particular in the spectral range that is visible to humans. With this registration unit 21 can the inmate 7th are recorded. In addition, the vehicle can 1 also a display unit 22nd exhibit. With this, information can be output optically and / or acoustically.

Especially when driving the vehicle 1 can be the health status of the occupant 7th with the electrical identification system 8th are recorded, in particular are recorded automatically. In particular, monitoring with regard to motion sickness of the occupant can be carried out in this context 7th respectively. It can be checked whether the occupant 7th already has motion sickness. In addition or instead, it can also be determined with what probability the occupant is 7th Will get motion sickness due to current conditions. This takes place as a function of the recorded acoustic signals relating to the stomach 18th and / or the intestines 19th .

It can be provided that in the evaluation unit 20th one or more acoustic reference noises are stored. These can be stomach noises typical of motion sickness and / or bowel noises typical of motion sickness. Are with at least one acoustic detection unit 9 , 10 , 13th , 15th , 16 Stomach noises and / or intestinal noises are recorded as acoustic signals, so these can be compared with the reference noises. In particular, the recorded acoustic signal is filtered before this comparison. In particular, ambient noises and / or noise are filtered out. Several different reference noises can also be stored, which are contextualized. For example, reference noises typical for the intestines and / or the stomach can not only be stored here, but this can also be done with a view to very specific driving situations of the vehicle 1 and / or very specific vehicle states or movement situations of the vehicle 1 are taken into account and / or very specific occupant situations are taken into account. This results in the most diverse and very detailed assessment scenarios in order to be able to judge whether the occupant is on the basis of the recorded acoustic signals 7th already has motion sickness and / or with what probability he will get motion sickness, in particular due to the current situation.

In addition, it enables the determination system 8th is also designed to provide specific information to the occupant after such an analysis 7th to pass on. this can be corresponding information about the relevant state of health. In addition or instead, information can also be output for the occupant 7th help to reduce motion sickness and / or avoid motion sickness that has not yet occurred. For example, in this context it can be dependent on the occupant's activity carried out in the past and / or current 7th in the vehicle 1 , for example reading and / or typing on a laptop or the like, and / or other, the surroundings of the vehicle 1 non-perceptual activity in the vehicle 1 an appropriate assessment will be made. Depending on these activities, it can be concluded whether they have an intensifying or weakening effect on the current state of health with regard to motion sickness. Depending on this, the determination system can then 8th Recommendations for action are generated and via the output unit 22nd issued to the occupant. In this context, information about a specific position of the occupant can be provided 7th in the vehicle 1 and / or by reducing and / or increasing and / or changing his current activity in the vehicle 1 be. This assessment of the determination system 8th with a view to making a recommendation to the occupant 7th can additionally or instead also depend on the current driving state of the vehicle 1 is and / or how the vehicle status of the vehicle 1 will be in a future movement time interval. This movement time interval can be the immediately following one that follows the assessment time. In this context, the expected driving dynamics of the vehicle 1 and / or a course of the road on which the vehicle is traveling 1 drives based on its navigation route.

It is also possible that if there are several acoustic detection units 9 , 10 , 13th , 15th , 16 are present, at least one acoustic signal is detected by at least two of the detection units, and these signals are weighted. This weighting can in turn take place, for example, to the effect of where the position of the respective detection unit is and / or where the position is relative to the stomach 18th and / or to the intestine 19th is and / or what the occupant state or the occupant situation is.

In 2 is a simplified front view of the occupant 7th shown. Here is an embodiment of the seat belt 11 shown. Examples here are in or on the belt section 12th at least two separate acoustic detection units 13th educated. In addition or instead of this, it is also possible in or on the further belt section 14th at least two separate acoustic detection units 15th be arranged, in particular in the area of the abdomen of the occupant 7th when the inmate 7th on the vehicle seat 3 sits and the seat belt 11 is properly created.

List of reference symbols

1

vehicle

2

Passenger compartment

3

Vehicle seat

4th

backrest

5

sitting area

6th

Sidewall

7th

inmate

8th

Determination system

9

Registration unit

10

Registration unit

11

Seat belt

12th

Strap section

13th

Registration unit

14th

Strap section

15th

Registration unit

16

Registration unit

17th

area

18th

stomach

19th

colon

20th

Evaluation unit

21

Registration unit

22nd

Display unit

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was 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.

Patent literature cited

• DE 2017206012 B3 [0007]
• US 2014/0176296 A1 [0008]

Claims (10)

Method for determining a state of health of an occupant (7) of a vehicle (1), in which at least one acoustic signal of a body part of the occupant (7) is detected with an acoustic detection unit (9, 10, 13, 15, 16) and determined as a function thereof whether the occupant (7) has motion sickness as a state of health, characterized in that with the at least one acoustic detection unit (9, 10, 13, 15, 16) acoustic signals from the stomach (18) of the occupant (7) and / or acoustic signals Signals of the intestine (19) of the occupant (7) are detected and, depending on these acoustic stomach signals and / or the acoustic intestinal signals, it is determined whether the occupant (7) has motion sickness or the probability of the occupant (7) getting motion sickness. Procedure according to Claim 1 , characterized in that an acoustic stomach signal and / or at least one acoustic bowel signal is recorded by at least one acoustic detection unit (9, 10, 13, 15, 16) on a vehicle seat (3) of the vehicle (1) and / or an acoustic stomach signal and / or at least one acoustic bowel signal is detected by at least one acoustic detection unit (9, 10, 13, 15, 16) on a seat belt (11) of the vehicle seat (1) on which the occupant (7) is sitting. Procedure according to Claim 1 or 2 , characterized in that, when evaluating the recorded acoustic signals, ambient noises in the vehicle (1) and / or ambient noises outside the vehicle (1), in particular those that were generated in the time interval of the signal detection, are filtered out of the detected acoustic signals and for the Determination of the state of health only the filtered acoustic signals are taken into account. Method according to one of the preceding claims, characterized in that at least one acoustic reference noise is provided for a stomach noise, in particular typical of motion sickness, and / or at least one acoustic reference noise for an intestinal noise, in particular typical of motion sickness, and the at least one detected acoustic signal is compared with at least one reference signal. Method according to one of the preceding claims, characterized in that a first acoustic reference noise for a stomach noise, particularly typical of motion sickness, in a first driving situation of the vehicle (1) and / or a first movement situation of the vehicle (1) and / or a first occupant situation is provided, and at least one second acoustic reference noise for a stomach noise, particularly typical of motion sickness, in a second driving situation of the vehicle (1) that is different from the first and / or a second movement situation of the vehicle (1) different from the first and / or one to the first different occupant situation is provided, and when an acoustic signal is recorded, the current and / or past and / or expected future driving situation of the vehicle (1), and / or the current and / or past and / or expected future movement situation of the vehicle ( 1), and / or the current and / or past occupant situation is determined, depending on this current and / or past and / or expected future driving situation of the vehicle (1), and / or the current and / or past and / or expected future movement situation of the vehicle ( 1), and / or the current and / or past occupant situation, one of the reference noises is selected and used as a basis for comparison with the acoustic signal, so that, depending on this comparison, it is determined whether the occupant (7) Has motion sickness or the probability that the occupant (7) will get motion sickness. Method according to one of the preceding claims, characterized in that a first acoustic reference noise for a bowel noise, particularly typical of motion sickness, in a first driving situation of the vehicle (1) and / or a first movement situation of the vehicle (1) and / or a first occupant situation is provided, and at least one second acoustic reference noise for an intestinal noise, particularly typical of motion sickness, in a different second driving situation of the vehicle (1) and / or a different second movement situation of the vehicle (1) and / or an occupant situation different from the first is provided, and when an acoustic signal is detected, the current and / or past and / or expected future driving situation of the vehicle (1), and / or the current and / or past and / or expected future Movement situation of the vehicle (1), and / or the current and / or past occupant situation is determined, depending on this current and / or past and / or expected future driving situation of the vehicle (1), and / or the current and / or past and / or expected future movement situation of the vehicle ( 1), and / or the current and / or past occupant situation, one of the reference noises is selected and used as a basis for comparison with the acoustic signal, so that, depending on this comparison, it is determined whether the occupant (7) has motion sickness or the probability of it Occupant (7) will get motion sickness. Method according to one of the preceding claims, characterized in that a past and / or current and / or expected future driving situation of the vehicle (1) is taken into account to determine the state of health of the occupant (7) with regard to motion sickness, in particular a driving situation caused by at least one of the following criteria is characterized: an autonomous operation of the vehicle (1) or a manual operation of the vehicle (1) by a driver; - an activity of the occupant (7) in the vehicle (1); - A course of the roadway on which the vehicle (1) is moving; - a position of the vehicle (1) and / or a past and / or current and / or expected future movement situation of the vehicle (1) is taken into account to determine the health status of the occupant (7) with regard to motion sickness, in particular a movement situation at least one of the following criteria is characterized: speed of the vehicle (1); - damping of the vehicle (1); - Inclination of the vehicle (1), and / or a past and / or current and / or expected future occupant situation is taken into account to determine the state of health of the occupant (7) with regard to motion sickness, the occupant situation in particular by at least one of the following criteria the following is characterized: - time the occupant consumed food (7); - type of clothing of the occupant (7), in particular in the area of the trunk of the occupant (7); - Climate in the interior (2) of the vehicle (1); - Gender and / or age of the occupant (7). Method according to one of the preceding claims, characterized in that an acoustic signal is detected with a first detection unit (9, 10, 13, 15, 16) in the vehicle (1) and at least one second acoustic signal is detected with a second detection unit (9, 10) , 13, 15, 16) is detected in the vehicle (1), the two acoustic signals depending on the times at which they were detected and / or depending on the positions of the detection units (9, 10, 13, 15, 16) to the occupant (7) and / or relative to one another, the weighting being taken into account to determine whether the occupant (7) has motion sickness or the probability that the occupant (7) will get motion sickness. Determination system (8) for a vehicle (1) for determining the state of health of an occupant (7) with regard to a possible motion sickness, which has at least one acoustic detection unit (9, 10, 13, 15, 16) and an evaluation unit (20), the Determination system (8) is designed to carry out a method according to one of the preceding claims. Vehicle (1) with a determination system (8) according to Claim 9 .

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