EP4651800A1 - Verfahren zur beurteilung eines vitalparameters eines passagiers sowie system und kraftfahrzeug - Google Patents
Verfahren zur beurteilung eines vitalparameters eines passagiers sowie system und kraftfahrzeugInfo
- Publication number
- EP4651800A1 EP4651800A1 EP23818385.9A EP23818385A EP4651800A1 EP 4651800 A1 EP4651800 A1 EP 4651800A1 EP 23818385 A EP23818385 A EP 23818385A EP 4651800 A1 EP4651800 A1 EP 4651800A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- activity
- vital parameter
- passenger
- state class
- assigned
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/16—Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state
- A61B5/18—Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state for vehicle drivers or machine operators
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
- A61B5/6893—Cars
Definitions
- the invention relates to a method for assessing a vital parameter of a passenger as well as a system and a motor vehicle.
- the invention is based on the object of improving the setting of a vehicle function with respect to a passenger.
- the object is achieved by the subject matter of the independent patent claims.
- Advantageous developments of the invention are defined by the dependent patent claims, the following description and the figures.
- One aspect of the invention relates to a method for assessing a vital parameter of a passenger in a vehicle. At least one vital parameter of the passenger is recorded using a first measuring unit. A vital parameter state class is determined depending on the recorded vital parameter. An activity of the passenger is recorded using a second measuring unit. The recorded activity is assigned to an activity state class. An assessment result is then determined from a comparison of the assigned vital parameter state class with the assigned activity state class. A vehicle function of the vehicle is set depending on the assessment result.
- the first measuring unit has an electroencephalography device (EEG device).
- EEG device records voltage fluctuations on the surface of the head.
- the cause of these voltage fluctuations are physiological processes in individual brain cells, which contribute to the brain's information processing through changes in electrical state.
- the voltage fluctuations have different frequencies in particular. These can be divided into frequency bands, so-called EEG bands.
- the frequency bands can be divided into delta waves, theta waves, alpha waves, beta waves and gamma waves.
- the at least one vital parameter of the passenger is the frequency of the voltage fluctuations recorded by the EEG device.
- the recorded vital parameter can be assigned to the vital parameter state class.
- Possible Vital parameter state classes include “relaxation,” “concentration,” “sleep,” and “stress.”
- the second measuring unit for recording the passenger's activity can, for example, work according to a different functional principle to the first measuring unit.
- the second measuring unit comprises a camera or a time-of-flight camera.
- the camera which can also be referred to as an interior camera, records the passenger.
- the passenger performs the activity, such as reading.
- the activity can be recognized, for example, using a computing unit.
- the activity can then be assigned to the activity state class.
- There are several activity state classes for example "relaxation”, “concentration”, "sleep” and "stress”.
- reading can be assigned to the activity state class "concentration”.
- the vital parameter state class is compared with the activity state class.
- the assessment result of this comparison indicates, for example, whether the assigned vital parameter state class matches the assigned activity state class. For example, if the recorded vital parameter of the passenger was assigned to the vital parameter state class “sleep” and the recorded activity of the passenger was assigned to the activity state class “concentration”, then the vital parameter state class and the activity state class do not match. From this, it can be determined, for example, as an assessment result that the passenger is in an internal state in which he could sleep. The recorded activity of reading in this example requires concentration and is therefore assigned to the activity state class “concentration”. Thus, in this example, the assigned vital parameter state class and the assigned activity state class do not match. It is possible that the passenger feels stressed and/or unwell as a result.
- the vehicle function to be adjusted is, for example, the brightness of a light in the vehicle and/or a massage setting for a vehicle seat and/or a setting for a seat heater for the vehicle seat and/or a setting for an audio system in the vehicle. It is possible that one or more vehicle functions of the vehicle are adjusted as required depending on the assessment result.
- the passenger is supported according to his inner, mental state, which is described by the vital parameter state class.
- the brightness of the light can be dimmed so that the passenger can sleep.
- the vital parameter state class matches the assigned
- Activity state class This makes it possible for the passenger's mental state to be improved because a discrepancy between the passenger's inner state and the passenger's activity has been eliminated.
- the passenger it is also possible for the passenger to be supported in their activity.
- the vehicle function can be set in such a way that the passenger's inner state is adapted to the activity.
- the brightness of the light in the vehicle can be increased. This can also eliminate the discrepancy between the passenger's inner state and the passenger's activity. This also improves the passenger's mental state and they feel comfortable and not stressed.
- a degree of a state of the assigned vital parameter state class is determined depending on a measured value of the recorded vital parameter.
- the assessment result is determined depending on this.
- the degree of state expression can be referred to as a confidence value.
- the degree of state expression can be referred to as a confidence value. For example, if the frequency of the voltage fluctuations measured by the EEG device is in a frequency range that lies in a border area between two different frequency bands, then the degree of state expression is lower than for frequencies that do not lie in such a border area.
- delta waves have a frequency between 0.1 and ⁇ 4 Hz. Delta waves are particularly typical of a deep sleep phase. Theta waves are in the frequency range between 4 and 8 Hz. Theta waves occur particularly frequently when you are sleepy. For example, if the recorded frequency is 4 Hz, then the confidence value for theta waves can be set low.
- the confidence value can, for example, be between 0 and 100 percent.
- the vehicle function can be adjusted as required, since the assessment result is determined depending on the degree of the state.
- the determined frequency is 4 Hz and the passenger is to be supported in the activity of reading, which corresponds to the activity state class "concentration".
- it is particularly advantageous if the brightness of the light in the vehicle is set brighter than with a determined frequency that lies in a frequency range between 7 and 8 Hz.
- At least one additional vital parameter is determined.
- the vital parameter state class is determined depending on the additional vital parameter. This can improve the determination of the passenger's internal state.
- the additional vital parameter can be used, for example, to verify the measured value of the first recorded vital parameter.
- the other vital parameter is a conductivity of the passenger’s skin, which can be used to detect sweat, a passenger’s pulse or pupil dilation. of the passenger. If necessary, the additional vital parameter is recorded with another measuring unit.
- the first recorded vital parameter is assigned to a vital parameter status class according to its measured value. At least temporarily, at least one further vital parameter can be determined at the same time and also assigned to a vital parameter status class. If necessary, the respective assigned vital parameter status classes match. In this case, a high degree of status expression can be determined.
- AI artificial intelligence
- a neural network is used to improve the assignment of the recorded measurements of the vital parameters.
- the artificial intelligence can be trained in particular using data from a large number of vehicles and measurements from the measuring units. This can ensure that the vital parameter state class is determined that corresponds to the internal state of the passenger.
- sensor data is generated to record the activity using the second measuring unit.
- the generated sensor data is evaluated using artificial intelligence and assigned to an activity.
- the activity is in turn assigned to the activity state class.
- an activity can be recognized from the evaluated sensor data.
- the activity is carried out by the passenger.
- the recognized activity is assigned the respective activity state class.
- the assigned activity state class is a target state of the passenger in which he should be when carrying out the recognized activity.
- the use of artificial intelligence improves the recognition of the activity and thus the assigned activity state class.
- the assessment result is displayed to the passenger.
- the passenger is shown at least one suggestion.
- the vehicle function is adjusted.
- Different cases can be distinguished, particularly depending on the assessment result. For example, if the assessment result contains information that the assigned vital parameter state class does not match the assigned activity state class and, in particular, a high degree of state was determined, then this can be displayed to the passenger if necessary. For example, the passenger is shown "You are in a different current state" on an output unit. The display or output to the passenger can be acoustic or visual. The user can be shown a suggestion as to whether a currently determined mental state that corresponds to the vital parameter state class should be promoted or whether they would like support in changing their mental state and thus adapting it to the current activity.
- the assigned vital parameter state class may correspond to the activity state class. If the degree of the state is low, the output unit can suggest to the passenger whether he would like to be supported according to his internal state.
- the vital parameter state class “stress” is recognized. Then, regardless of the assigned activity state class, the passenger is shown the following suggestion, for example: “We have recognized that you are in a stressful state. Should we help you to relax?” By distinguishing between the different cases, it is possible to adjust the vehicle function as required depending on the assessment result.
- the at least one vital parameter is recorded using an electroencephalography device of the first measuring unit.
- an EEG device By using an EEG device, the assignment of the vital parameter to the vital parameter state class is possible in a particularly reliable manner.
- the activity is recorded using a camera of the second measuring unit.
- the camera records the passenger and generates sensor data.
- the passenger's activity can be recognized by analyzing the sensor data.
- the sensor data can also be used to record other vital parameters.
- fleet data is used to assign the vital parameter to the vital parameter state class and/or to assign the recorded activity to the activity state class.
- the fleet data can be used to train artificial intelligence.
- the fleet data contains, for example, information on recorded vital parameters and the respective assigned vital parameter status classes and/or the recorded activities and the respective assigned activity status classes of a large number of vehicles, in particular more than 10 vehicles, in particular more than 100, in particular more than 1,000 vehicles.
- the vital parameter is assigned to the vital parameter status class and/or the recorded activity is assigned to the activity status class reliably.
- a further aspect of the invention relates to a system.
- the system has a first measuring unit for detecting at least one vital parameter of a person. Furthermore, the system has a determination unit for determining a vital parameter state class depending on the recorded vital parameters.
- the system has a second measuring unit for recording an activity of the person, an assignment unit for assigning the recorded activity to an activity state class and a computing unit for determining an assessment result from a comparison of the assigned vital parameter state class with the assigned activity state class and for setting a function depending on the assessment result.
- a further aspect of the invention relates to a motor vehicle.
- the motor vehicle has a system according to the invention.
- an error message and/or a request for the passenger to provide feedback is issued and/or a standard setting and/or a predetermined initial state is set.
- the invention also includes at least one computing unit for the motor vehicle.
- the at least one computing unit can have a data processing device or a processor device that is set up to carry out an embodiment of the method according to the invention.
- the processor device can have at least one microprocessor and/or at least one microcontroller and/or at least one FPGA (Field Programmable Gate Array) and/or at least one DSP (Digital Signal Processor).
- the processor device can have program code that is set up to carry out the embodiment of the method according to the invention when executed by the processor device.
- the program code can be stored in a data memory of the processor device.
- a processor circuit of the processor device can, for example, have at least one circuit board and/or at least one SoC (System on Chip).
- the invention also includes further developments of the motor vehicle according to the invention and of the system according to the invention, which have features as have already been described in connection with the further developments of the method according to the invention. For this reason, the corresponding further developments of the motor vehicle according to the invention and of the system according to the invention are not described again here.
- the motor vehicle according to the invention is preferably designed as a motor vehicle, in particular as a passenger car or truck, or as a passenger bus.
- the invention also includes a computer-readable storage medium, comprising commands which, when executed by a computer or a computer network, cause it to carry out an embodiment of the method according to the invention.
- the storage medium can, for example, be designed at least partially as a non-volatile data memory (e.g. as a flash memory and/or as an SSD - solid state drive) and/or at least partially as a volatile data memory (e.g. as a RAM - random access memory).
- the storage medium can also, for example, be operated as a so-called app store server on the Internet.
- the computer or computer network can provide a processor circuit with at least one microprocessor.
- the commands can be provided as binary code or assembler and/or as source code of a programming language (e.g. C).
- the invention also includes combinations of the features of the described embodiments.
- the invention therefore also includes implementations that each have a combination of the features of several of the described embodiments, provided that the embodiments have not been described as mutually exclusive.
- FIG. 1 shows an embodiment of a flow chart of a method according to the invention
- Fig. 2 is a schematic representation of an embodiment of modules of a system according to the invention.
- Fig. 3 is a schematic representation of an embodiment of a vehicle with a system according to the invention.
- Fig. 1 shows an embodiment of a flow chart for a method for assessing a vital parameter of a passenger of a vehicle 15.
- the vehicle 15 is fully autonomous.
- a vital parameter of the passenger is recorded by means of a first measuring unit 5 (Fig. 2).
- a first measuring unit 5 for example, an EEG device can be used as part of the first measuring unit 5. This can in particular be installed in a seat of the vehicle 15.
- a vital parameter state class is determined depending on the recorded vital parameter. For example, there are the vital parameter state classes "relaxation”, “concentration”, “sleep” and "stress”.
- a measurement signal from the EEG device can be evaluated, for example, by at least one computing unit 9 (Fig. 3), for example by determining a frequency band of the measurement signal. Depending on the determined frequency band, the corresponding vital parameter state class can then be assigned if necessary.
- An example assignment of the frequency bands to the vital parameter state classes can in particular be the following.
- Delta waves with a frequency of 0.1 Hz to ⁇ 4 Hz can be assigned to the vital parameter state class "sleep".
- Theta waves with a frequency of 4 Hz to ⁇ 8 Hz can be assigned to the vital parameter state class “relaxation”, alpha waves with a frequency of 8 Hz to ⁇ 13 Hz to the vital parameter state class “concentration” and beta waves with a frequency between 13 Hz and ⁇ 30 Hz, in particular between 21 Hz and 38 Hz, to the vital parameter state class “stress”.
- a step S3 an activity of the passenger is recorded by means of a second measuring unit 7 (Fig. 2).
- the second measuring unit 7 can, for example, have a camera that is directed in particular at the passenger.
- the camera can generate a further measurement signal, in particular camera images.
- the recorded activity is assigned to an activity state class.
- the further measurement signal for example from the at least one computing unit 9, is evaluated.
- the passenger's eyes are part of the camera images.
- the computing unit 9 can, for example, recognize and analyze the eyes, for example whether they are moving back and forth to read, are closed or are directed at something outside the vehicle 15.
- an artificial intelligence can be trained in particular to recognize an activity of the passenger, for example from the camera images, and to assign this to an activity state class.
- the recognized activity can be assigned to an activity state class “relaxation”, “concentration”, “sleep” or “stress”. In particular, there can be the same activity and vital parameter state classes.
- an assessment result is determined from a comparison of the assigned vital parameter state class with the assigned activity state class. To do this, it can first be checked whether the vital parameter state class corresponds to the activity state class. In addition, in one embodiment, a degree of expression of the vital parameter state class can also be determined. In addition, it can be checked if necessary whether the vital parameter state class "stress" was assigned to the vital parameter. The assessment result can then, for example, contain information about whether the vital parameter state class corresponds to the activity state class, the degree of expression and optionally whether the vital parameter state class "stress" was assigned to the vital parameter.
- a vehicle function of the vehicle 15 is set depending on the assessment result.
- a massage function of a vehicle seat of the vehicle 15, an audio system and/or a video system can be set for this purpose.
- One goal can be, for example, that the vital parameter of the passenger is changed in such a way that the vital parameter, in particular when the vital parameter is recorded again, can be assigned to the vital parameter state class that corresponds to the same activity state class.
- Another goal can be that the degree of expression should be increased, but the vital parameter state class should not be changed.
- the passenger is suggested to change his activity because his current activity is assigned to an activity state class that does not match the vital parameter state class.
- the vehicle function can also be set in such a way that the passenger is supported in changing his activity.
- steps S3 and S4 can be carried out at least temporarily simultaneously with steps S1 and S2. If necessary, step S5 can only be carried out once steps S2 and S4 have been completed.
- Fig. 2 shows a schematic representation of an embodiment of modules of a system according to the invention for assessing at least one vital parameter of the passenger.
- the system can have the modules “Sensory current condition” 1 , “Improvement of well-being” 2, “Sensory current activity” 3 and “Vehicle condition control” 4.
- the “sensory current state” module 1 can carry out steps S1 and S2.
- the “sensory current state” module 1 has, for example, the first measuring unit 5 to carry out step S1.
- the measuring unit 5 can have an EEG device integrated into a headrest of the vehicle seat.
- the “sensory current state” module 1 can also have a determination unit 6 to carry out step S2.
- the determination unit 6 can in particular have an artificial intelligence module EEG state classifier, in particular a neural network.
- the vital parameter state class can be determined according to the vital parameter. Furthermore, the degree of severity can in particular be determined.
- the "sensor current activity” module 3 can, for example, carry out steps S3 and S4.
- the "sensor current activity” module 3 can have the second measuring unit 7 and the allocation unit 8.
- the second measuring unit 7 can have the camera for observing the passenger.
- the allocation unit 8 can be a passenger activity classifier module, in particular another neural network. to recognize the activity and to assign the activity to an activity state class.
- the “improvement in well-being” module can, for example, have at least one computing unit 9 for carrying out step S5 and, if necessary, an output unit 10.
- the output unit 10 can output information to the passenger visually and/or acoustically.
- the output unit 10 can output the assessment result to the passenger, for example by displaying it on a screen in the vehicle 15.
- suggestions can be displayed to the passenger in particular depending on the assessment result.
- the passenger can then select whether he or she would like to be supported in what way.
- the passenger can select the suggestion, for example, by voice or a haptic input, in particular on the screen.
- the passenger can choose whether he or she would like to be supported in changing the vital parameter so that the assigned vital parameter state class corresponds to the activity state class, or whether he or she would like to change his or her activity and maintain the current activity state class and be supported in doing so, or whether he or she would like no support.
- the passenger can choose whether or not he would like to be supported according to his vital parameter state class.
- the threshold can be statically defined, if applicable, or it can correspond to the average degree of expression of the previously recorded vital parameters.
- no suggestion can be displayed and steps S1 to S5 are carried out again, in particular after a specified time interval.
- the passenger can select whether he or she would like to be supported in relaxing.
- the “vehicle state control” module 4 has, for example, a controller 11, an actuator 12, a controlled system 13 and a measuring element 14.
- controllers 11 can be used, which in particular carry out step S6.
- the desired vital parameter state class can in particular be determined depending on the passenger’s selection.
- Possible actuators 12 can be a massage function of a vehicle seat of the vehicle 15 or other settings of the vehicle seat, an audio system of the vehicle 15 for playing music, a brightness or color of an interior lighting of the vehicle 15 or a setting for output on the screen of the vehicle 15.
- the controlled system 13 can be the passenger, in particular his internal state and/or his well-being.
- the measuring element 14 can have the first measuring unit 5, which in particular comprises the EEG device, and the determination unit 6, which in particular comprises the EEG state classifier module.
- the desired vital parameter state class can be “relaxation”. Then, for example, a relaxing massage and/or dimmed interior lighting and/or relaxing music can be set. If necessary, the screen can also be switched off.
- the desired vital parameter state class can be “concentration”. Then, for example, an activating massage and/or bright interior lighting and/or activating music can be set. If necessary, sights of the current surroundings of the vehicle 15 can be displayed on the screen.
- the desired vital parameter state class can be "sleeping”. Then, for example, a dimmed interior lighting and/or a reclining position of the vehicle seat can be set. If necessary, the screen can be switched off.
- Steps S1 to S6 can then be carried out again, for example after a predetermined time interval, for example 15 minutes.
- Fig. 3 shows a schematic representation of a vehicle 15 which has the system for assessing the vital parameters of the passenger of the vehicle 15.
- the system can, for example, have the first measuring unit 5, the second measuring unit 7, the determination unit 6, the allocation unit 8 and the at least one computing unit 9.
- the allocation unit 8 and the determination unit 6 can in particular be part of the computing unit 9.
- Step S1 can be carried out by means of the first measuring unit 5, which can in particular have an EEG device.
- Step S2 can be carried out by means of the determination unit 6, which can be designed as a Kl-module EEG state classifier.
- Step S3 can be carried out by means of the second measuring unit 7, which can include the camera.
- Step S4 can be carried out by means of the allocation unit 8, which can be designed as a Kl-module passenger activity classifier.
- Steps S5 and S6 can be carried out by means of the computing unit 9.
- the examples show in particular how the well-being of passengers in autonomous ferry operations can be improved through artificial intelligence-based EEG state control.
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- General Health & Medical Sciences (AREA)
- Biophysics (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
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- Pathology (AREA)
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- Child & Adolescent Psychology (AREA)
- Developmental Disabilities (AREA)
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102023101376.9A DE102023101376A1 (de) | 2023-01-20 | 2023-01-20 | Verfahren zur Beurteilung eines Vitalparameters eines Passagiers sowie System und Kraftfahrzeug |
| PCT/EP2023/084258 WO2024153388A1 (de) | 2023-01-20 | 2023-12-05 | Verfahren zur beurteilung eines vitalparameters eines passagiers sowie system und kraftfahrzeug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4651800A1 true EP4651800A1 (de) | 2025-11-26 |
Family
ID=89121756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23818385.9A Pending EP4651800A1 (de) | 2023-01-20 | 2023-12-05 | Verfahren zur beurteilung eines vitalparameters eines passagiers sowie system und kraftfahrzeug |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4651800A1 (de) |
| CN (1) | CN120603536A (de) |
| DE (1) | DE102023101376A1 (de) |
| WO (1) | WO2024153388A1 (de) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0821318D0 (en) * | 2008-11-24 | 2008-12-31 | Avidan Dan | Alarm system and method |
| US8872640B2 (en) * | 2011-07-05 | 2014-10-28 | Saudi Arabian Oil Company | Systems, computer medium and computer-implemented methods for monitoring health and ergonomic status of drivers of vehicles |
| WO2015127193A1 (en) * | 2014-02-20 | 2015-08-27 | Faurecia Automotive Seating, Llc. | Vehicle seat with integrated sensors |
| DE102016207447A1 (de) | 2016-04-29 | 2017-11-02 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zur Insassenassistenz für ein Fahrzeug und Vorrichtung hierfür |
| US10317900B2 (en) * | 2016-05-13 | 2019-06-11 | GM Global Technology Operations LLC | Controlling autonomous-vehicle functions and output based on occupant position and attention |
| US10867218B2 (en) | 2018-04-26 | 2020-12-15 | Lear Corporation | Biometric sensor fusion to classify vehicle passenger state |
| DE102019204201B4 (de) * | 2019-03-27 | 2025-08-14 | Volkswagen Aktiengesellschaft | Verfahren und Vorrichtung zum Anpassen einer Fahrstrategie eines zumindest teilautomatisiert fahrenden Fahrzeugs |
| DE102020208722A1 (de) | 2020-07-13 | 2022-01-13 | Volkswagen Aktiengesellschaft | Verfahren zur Unterstützung eines Fahrzeuginsassen vor, während und nach einer Schlafpause während einer autonomen Fahrt in einem Fahrzeug |
-
2023
- 2023-01-20 DE DE102023101376.9A patent/DE102023101376A1/de active Pending
- 2023-12-05 WO PCT/EP2023/084258 patent/WO2024153388A1/de not_active Ceased
- 2023-12-05 EP EP23818385.9A patent/EP4651800A1/de active Pending
- 2023-12-05 CN CN202380091878.8A patent/CN120603536A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102023101376A1 (de) | 2024-07-25 |
| WO2024153388A1 (de) | 2024-07-25 |
| CN120603536A (zh) | 2025-09-05 |
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