Carsickness intervention method and system and vehicle

Abstract

The invention provides a carsickness intervention method and system and a vehicle, and the method comprises the steps: obtaining the first speed information of the vehicle, the carsickness feature information of a carsickness person in the vehicle, and the operation parameters of each carsickness intervention device; determining a first carsickness intervention level suitable for the carsickness person according to the first speed information, the carsickness feature information and a preset mapping relation; if an obtained first parameter value is greater than a preset parameter threshold value after the operation parameters of the carsickness intervention equipment configured by the first carsickness intervention level are adjusted according to the parameter adjusting quantity, degrading the first carsickness intervention level into a second carsickness intervention level; and performing carsickness intervention operation on the carsickness person according to the second carsickness intervention level. In combination with the speed information of the vehicle, the carsickness feature information of the carsickness persons in the vehicle and the operation parameters and the safe operation parameters of the carsickness intervention equipment, the carsickness intervention level is determined in a self-adaptive mode, and the reliable, accurate and personalized carsickness intervention effect is achieved.

Description

Technical Field

[0001] This application relates to the field of vehicle control technology, and in particular to a motion sickness intervention method, system and vehicle. Background Technology

[0002] With the rapid development of automotive intelligence, AR-HUD (Augmented Reality Head-Up Display) systems, as a core component integrating perception, interaction, and display in intelligent cockpits, are gradually being promoted and applied in various vehicle models. AR-HUD systems use augmented reality technology to project key information such as navigation and vehicle speed onto the driver's field of vision, overlaying it with the real road scene, effectively reducing eye deviation and improving driving safety and experience.

[0003] In related technologies, AR-HUD systems generally adopt a 2D projection scheme with a fixed virtual image distance and static screen layout. The navigation, vehicle speed and other information displayed are always superimposed on the same depth plane. When drivers and passengers experience pre-motion sickness symptoms or are already experiencing motion sickness, the high brightness and high dynamic changes of the HUD screen will exacerbate visual-vestibular conflict and induce or aggravate motion sickness symptoms. Based on this, no effective motion sickness intervention scheme has been developed. Summary of the Invention

[0004] This application discloses a motion sickness intervention method, system, and vehicle, which addresses the technical problem of the lack of effective motion sickness intervention methods for people experiencing motion sickness in a vehicle.

[0005] This application provides a vehicle intervention method, the method comprising: acquiring first speed information of the vehicle, motion sickness characteristic information of a person experiencing motion sickness inside the vehicle, and operating parameters of each motion sickness intervention device; determining a first motion sickness intervention level applicable to the person experiencing motion sickness based on the first speed information, the motion sickness characteristic information, and a preset mapping relationship, wherein the mapping relationship represents the correspondence between different combinations of speed information and motion sickness characteristic information and motion sickness intervention levels, and each motion sickness intervention level is configured with a corresponding motion sickness intervention device and a parameter adjustment amount of the motion sickness intervention device; if, after adjusting the operating parameters of the motion sickness intervention device configured for the first motion sickness intervention level according to the parameter adjustment amount, the obtained first parameter value is greater than a preset parameter threshold, then the first motion sickness intervention level is downgraded to a second motion sickness intervention level, wherein the parameter threshold represents the upper limit of the operating parameters allowed by the motion sickness intervention device when intervening in the person experiencing motion sickness; and performing motion sickness intervention operations on the person experiencing motion sickness according to the second motion sickness intervention level.

[0006] In one embodiment of this application, after downgrading the first motion sickness intervention level to the second motion sickness intervention level, the method further includes: if the second motion sickness intervention level is the lowest motion sickness intervention level among all motion sickness intervention levels, and the second parameter value obtained after adjusting the operating parameters of the motion sickness intervention device configured for the second motion sickness intervention level according to the parameter adjustment amount is greater than the parameter threshold, then a prompt instruction for smooth vehicle driving is generated to alleviate the motion sickness symptoms of the person experiencing motion sickness based on the smooth vehicle condition.

[0007] In one embodiment of this application, before downgrading the first motion sickness intervention level to the second motion sickness intervention level, the method further includes: obtaining the maximum operating parameter of the motion sickness intervention device configured for the first motion sickness intervention level, wherein the maximum operating parameter is greater than the parameter threshold; if the first parameter value is greater than the maximum operating parameter, then downgrading the first motion sickness intervention level to the third motion sickness intervention level, wherein the level of the third motion sickness intervention level is higher than the level of the second motion sickness intervention level, and as the motion sickness intervention level decreases, the number of motion sickness intervention devices configured for each motion sickness intervention level decreases and / or the parameter adjustment amount corresponding to the motion sickness intervention device decreases.

[0008] In one embodiment of this application, motion sickness intervention is performed on the person experiencing motion sickness according to the second motion sickness intervention level, including: if the person experiencing motion sickness is a single individual, the operating parameters of the motion sickness intervention device configured for the second motion sickness intervention level are directly adjusted according to the parameter adjustment amount to complete the motion sickness intervention operation; if the person experiencing motion sickness is a multiple individual, the types of all motion sickness intervention devices to be controlled are determined according to the motion sickness intervention devices configured for the second motion sickness intervention level according to the needs of different individuals experiencing motion sickness, wherein the motion sickness intervention devices include shared intervention devices and dedicated intervention devices for each individual experiencing motion sickness in each seat, the shared intervention devices include head-up display devices, air conditioning devices, and fragrance devices, and the dedicated intervention devices include seat airbags and rear-seat display devices; for the dedicated intervention devices, the parameters are adjusted according to their respective parameter adjustment amounts, and for the shared intervention devices, the parameters are adjusted according to the parameter adjustment amounts required by different individuals experiencing motion sickness to complete the motion sickness intervention operation.

[0009] In one embodiment of this application, for the shared intervention device, parameter adjustment is performed according to the parameter adjustment amount required by different motion sickness sufferers, including: if the shared intervention device is the air conditioning device and the aromatherapy device, then the parameter adjustment amount corresponding to the higher motion sickness intervention level among the second motion sickness intervention levels required by different motion sickness sufferers is determined as the target parameter adjustment amount of the shared intervention device; and the operating parameters of the shared intervention device are adjusted according to the target parameter adjustment amount.

[0010] In one embodiment of this application, for the shared intervention device, parameter adjustment according to the parameter adjustment amount required by different motion sickness sufferers further includes: if the shared intervention device is the head-up display device, then obtaining the effective viewing distance and effective viewing angle range of each passenger's seat relative to the displayed virtual image; determining the offset of the display position of the displayed virtual image corresponding to the second motion sickness intervention level of each motion sickness sufferer as the candidate offset of the shared intervention device, wherein the operating parameters of the head-up display device include the display position of the displayed virtual image; determining multiple total offsets after the display position adjustment based on each candidate offset, and calculating each total offset with the effective viewing distance of each passenger to obtain the target viewing angle of each passenger under different total offsets; determining the target offset based on the target viewing angle of each passenger under different total offsets and the effective viewing angle range corresponding to each passenger, and adjusting the display position based on the target offset.

[0011] In one embodiment of this application, after performing motion sickness intervention on the person experiencing motion sickness according to the second motion sickness intervention level, the method further includes: monitoring the number of times the person experiencing motion sickness triggers the motion sickness intervention operation to obtain the number of interventions; if the number of interventions is greater than a preset number threshold within a preset monitoring period, then after a preset interval period, and under the condition that the motion sickness index corresponding to the person experiencing motion sickness is greater than a preset index threshold, the motion sickness intervention operation continues to be performed on the person experiencing motion sickness.

[0012] In one embodiment of this application, before acquiring the first speed information, the motion sickness feature information, and the operating parameters, the method further includes: acquiring the vehicle's second speed information and a sequence of eye images of each passenger, wherein the second speed information includes longitudinal acceleration, and the eye images in the eye image sequence are arranged in chronological order; inputting each eye image sequence into a pre-constructed semantic segmentation model to extract the contour point coordinates of the pupil edges in the eye images, thereby obtaining a sequence of contour point coordinates of the pupil edges of each passenger, wherein the contour point coordinates in the contour point coordinate sequence are arranged in chronological order; determining the tremor frequency of each passenger's pupils based on each contour point coordinate sequence, and performing a weighted calculation on the longitudinal acceleration and the tremor frequency to obtain the motion sickness index of each passenger; if the motion sickness index of any passenger is greater than the index threshold, then the any passenger is identified as the person experiencing motion sickness.

[0013] This application also provides a motion sickness intervention system, the system comprising: a data acquisition module for acquiring first speed information of a vehicle, motion sickness characteristic information of a person experiencing motion sickness inside the vehicle, and operating parameters of each motion sickness intervention device; a matching module for determining a first motion sickness intervention level for the person experiencing motion sickness based on the first speed information, the motion sickness characteristic information, and a preset mapping relationship, wherein the mapping relationship represents the correspondence between different combinations of speed information and motion sickness characteristic information and motion sickness intervention levels, and each motion sickness intervention level is configured with a corresponding motion sickness intervention device and a parameter adjustment amount for the motion sickness intervention device; an adjustment module for downgrading the first motion sickness intervention level to a second motion sickness intervention level if, after adjusting the operating parameters of the motion sickness intervention device configured for the first motion sickness intervention level according to the parameter adjustment amount, the obtained first parameter value is greater than a preset parameter threshold, wherein the parameter threshold represents the upper limit of the allowed operating parameters of the motion sickness intervention device when intervening in the person experiencing motion sickness; and an intervention module for performing motion sickness intervention operations on the person experiencing motion sickness according to the second motion sickness intervention level.

[0014] This application also provides a vehicle that uses the motion sickness intervention method as described above, or includes the motion sickness intervention system as described above.

[0015] The beneficial effects of this application are as follows: This application provides a motion sickness intervention method, system, and vehicle. First, it acquires the vehicle's initial speed information, the motion sickness characteristics of the person experiencing motion sickness inside the vehicle, and the operating parameters of each motion sickness intervention device. Then, based on the initial speed information, the motion sickness characteristics, and a preset mapping relationship, it determines the applicable initial motion sickness intervention level for the person experiencing motion sickness. Different motion sickness intervention levels are configured with corresponding motion sickness intervention devices and parameter adjustment amounts for these devices. If, after adjusting the operating parameters of the motion sickness intervention devices configured for the initial motion sickness intervention level according to the parameter adjustment amount, the obtained initial parameter value is greater than a preset parameter threshold, then the initial motion sickness intervention level is downgraded to a second motion sickness intervention level. The first level, a threshold parameter, represents the upper limit of the allowed operating parameters for the motion sickness intervention device when intervening in individuals experiencing motion sickness. Finally, the intervention is performed based on the second motion sickness intervention level. The intervention is adaptively determined based on vehicle speed information and the motion sickness characteristics of the individuals inside the vehicle. Furthermore, by combining the operating parameters of the motion sickness intervention device with the upper limit of allowed operating parameters, the intervention level is adaptively adjusted. This ensures the effectiveness of the intervention while avoiding the exacerbation of motion sickness symptoms due to excessive adjustment of device operating parameters, thus achieving reliable, accurate, and personalized motion sickness intervention and improving the user experience. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0017] In the attached diagram: Figure 1 This is a schematic diagram illustrating the implementation environment of a motion sickness intervention system, as shown in an exemplary embodiment of this application. Figure 2 This is a flowchart illustrating a motion sickness intervention method as shown in an exemplary embodiment of this application; Figure 3 This is a block diagram illustrating a motion sickness intervention system as shown in an exemplary embodiment of this application; Figure 4 This is a schematic diagram of the structure of an in-vehicle terminal provided in one embodiment of this application. Detailed Implementation

[0018] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0019] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the shape, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0020] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the present application. However, it will be apparent to those skilled in the art that embodiments of the present application may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the present application.

[0021] AR-HUD systems use augmented reality technology to project key information such as navigation and vehicle speed onto the driver's field of vision, overlaying it with the real road scene, thus improving driving safety and experience. However, AR-HUD systems generally use a 2D projection scheme with a fixed virtual image distance and static image layout. The displayed navigation, vehicle speed, and other information are always superimposed on the same depth plane. When passengers experience pre-motion sickness symptoms or are already experiencing motion sickness, the high brightness and high dynamic changes of the HUD image can exacerbate visual-vestibular conflict, inducing or worsening motion sickness symptoms. As a result, no effective motion sickness intervention solution has been developed.

[0022] Therefore, please see Figure 1 , Figure 1 This is a schematic diagram illustrating the implementation environment of a motion sickness intervention system, as shown in an exemplary embodiment of this application. Figure 1 As shown, the implementation environment includes a vehicle 110 and a motion sickness intervention system 120. The motion sickness intervention system 120 is embedded in the vehicle 110 and is used to implement motion sickness intervention control for people experiencing motion sickness inside the vehicle 110. The motion sickness intervention system 120 includes, but is not limited to, vehicle infotainment systems and onboard computers. Based on the vehicle's speed information and the motion sickness characteristics of the people experiencing motion sickness inside the vehicle, it adaptively determines the motion sickness intervention level to intervene in the people experiencing motion sickness. In addition, it combines the operating parameters of the motion sickness intervention device with the upper limit of the operating parameters allowed when intervening in the people experiencing motion sickness, and adaptively adjusts the motion sickness intervention level. This can ensure the effectiveness of the intervention measures while avoiding the situation where the motion sickness symptoms are aggravated due to excessive adjustment of the device's operating parameters, thereby achieving reliable, accurate and personalized motion sickness intervention and improving the user experience.

[0023] Please see Figure 2 , Figure 2 This is a flowchart illustrating an exemplary embodiment of a motion sickness intervention method according to this application. The method can be applied to... Figure 1 The implementation environment shown is specifically executed by the motion sickness intervention system 120 within that implementation environment. It should be understood that this method can also be applied to other exemplary implementation environments and executed by devices in other implementation environments; this embodiment does not limit the implementation environment to which the method is applicable.

[0024] like Figure 2 As shown, in an exemplary embodiment, the motion sickness intervention method includes at least steps S210 to S240, which are described in detail below: Step S210: Obtain the vehicle's first speed information, the motion sickness characteristics of the people in the vehicle, and the operating parameters of each motion sickness intervention device.

[0025] The first velocity information includes longitudinal acceleration; there is at least one person who is prone to motion sickness.

[0026] Step S220: Based on the first speed information, motion sickness characteristic information and the preset mapping relationship, determine the first motion sickness intervention level applicable to the motion sickness person. The mapping relationship represents the correspondence between different combinations of speed information and motion sickness characteristic information and motion sickness intervention level. Each motion sickness intervention level is equipped with a corresponding motion sickness intervention device and the parameter adjustment amount of the motion sickness intervention device.

[0027] Each motion sickness intervention level is equipped with at least one motion sickness intervention device. When there are multiple motion sickness intervention devices, each motion sickness intervention device is equipped with a corresponding parameter adjustment amount.

[0028] Step S230: If the first parameter value obtained after adjusting the operating parameters of the motion sickness intervention device configured for the first motion sickness intervention level by the parameter adjustment amount is greater than the preset parameter threshold, then the first motion sickness intervention level is downgraded to the second motion sickness intervention level. Here, the parameter threshold represents the upper limit of the operating parameters allowed when the motion sickness intervention device intervenes in motion sickness.

[0029] Among them, the parameter thresholds can be set according to specific situations or needs. Different motion sickness intervention devices have different parameter thresholds, which serve as the upper limit of the allowed operating parameters when the motion sickness intervention device intervenes in people with motion sickness, representing the safe operating range under the condition of not aggravating the motion sickness symptoms of the people with motion sickness. The first motion sickness intervention level is higher than the second motion sickness intervention level, that is, the degree of motion sickness intervention corresponding to the first motion sickness intervention level is greater than the degree of motion sickness intervention corresponding to the second motion sickness intervention level. In addition, the first and second in the first and second motion sickness intervention levels are only used to distinguish different motion sickness intervention levels, and do not represent the intervention level.

[0030] Step S240: Perform motion sickness intervention on the person experiencing motion sickness according to the second motion sickness intervention level.

[0031] In step S210, when it is necessary to intervene in motion sickness for people with motion sickness, the current first speed information of the vehicle, the current motion sickness characteristics information of the people with motion sickness in the vehicle, and the current operating parameters of each motion sickness intervention device are obtained to provide a data basis for determining the subsequent motion sickness intervention level.

[0032] In step S220, based on the obtained first speed information and motion sickness characteristic information, the first motion sickness intervention level corresponding to the first speed information and motion sickness characteristic information can be determined from the mapping relationship. The obtained first motion sickness intervention level is configured with at least one corresponding motion sickness intervention device and the parameter adjustment amount of the at least one motion sickness intervention device.

[0033] In step S230, if the first parameter value obtained after adjusting the operating parameters of the motion sickness intervention device configured for the first motion sickness intervention level by the parameter adjustment amount is greater than the parameter threshold corresponding to the motion sickness intervention device configured for the first motion sickness intervention level, it indicates that performing motion sickness intervention based on the first motion sickness intervention level may cause the motion sickness symptoms of the person with motion sickness to become more severe. Therefore, the first motion sickness intervention level is marked as infeasible. Thus, the first motion sickness intervention level needs to be downgraded to the second motion sickness intervention level that meets the conditions. That is, the second motion sickness intervention level is a motion sickness intervention level that will not cause the motion sickness symptoms of the person with motion sickness to worsen. In other words, after adjusting the operating parameters of the motion sickness intervention device configured for the second motion sickness intervention level by the parameter adjustment amount, the third parameter value obtained is less than or equal to the parameter threshold to ensure that the motion sickness symptoms of the person with motion sickness will not worsen due to the motion sickness intervention operation. The downgrading of the first motion sickness intervention level to the second motion sickness intervention level that meets the conditions is achieved through at least one downgrading operation.

[0034] In step S240, motion sickness intervention is performed on the person experiencing motion sickness according to the second motion sickness intervention level. This involves adjusting the operating parameters of the motion sickness intervention device configured for the second motion sickness intervention level according to the parameter adjustment amount, thereby completing the motion sickness intervention operation.

[0035] In this embodiment, the motion sickness intervention level is adaptively determined based on the vehicle's speed information and the motion sickness characteristics of the person experiencing motion sickness inside the vehicle. The intervention level is then adjusted adaptively by combining the operating parameters of the motion sickness intervention device with the upper limit of the allowed operating parameters when intervening in the person experiencing motion sickness. This ensures the effectiveness of the intervention measures while avoiding the situation where the motion sickness symptoms are aggravated due to excessive adjustment of the device's operating parameters. As a result, reliable, accurate and personalized motion sickness intervention is achieved, improving the user experience.

[0036] In addition, based on the preset mapping relationship, the corresponding motion sickness intervention level is matched, enabling rapid decision-making on the motion sickness intervention level.

[0037] For example, the motion sickness characteristic information includes the motion sickness index of the person experiencing motion sickness and the seat label of the seat in which the person experiencing motion sickness is sitting. The motion sickness index represents the degree of motion sickness, and the higher the value, the higher the degree. The seat label includes, but is not limited to, the driver's seat label, the front passenger seat label, the rear left seat label, and the rear right seat label.

[0038] In this exemplary embodiment, the first motion sickness intervention level corresponding to the person experiencing motion sickness is determined based on the vehicle's first speed information, their own motion sickness index, and the seat identifier of the seat they are in. In other words, changes in the first speed information, the motion sickness index, or the seat identifier may affect the motion sickness intervention device corresponding to the person experiencing motion sickness and / or the parameter adjustment amount of the motion sickness intervention device, so as to achieve the effect of adaptive motion sickness intervention operation according to the seat of the person experiencing motion sickness, and can provide differentiated motion sickness intervention for the front passenger and rear passengers.

[0039] For example, motion sickness intervention devices include, but are not limited to, head-up displays, air conditioning systems, fragrance devices, seat airbags, and rear-seat display screens; the operating parameters of the head-up display include the display position of the virtual image, and the corresponding parameter adjustment includes the offset of the display position in the horizontal and / or vertical directions; the operating parameters of the air conditioning system include the external airflow rate, and the corresponding parameter adjustment includes the adjustment of the external airflow rate; the operating parameters of the fragrance device include the release concentration, and the corresponding parameter adjustment includes the adjustment of the release concentration; the operating parameters of the seat airbag include the airbag displacement, and the corresponding parameter adjustment includes the adjustment of the airbag displacement; the operating parameters of the rear-seat display screen include the screen deformation, and the corresponding parameter adjustment includes the adjustment of the screen deformation.

[0040] In this exemplary embodiment, the seat airbag includes an upper seat back airbag, a middle seat back airbag, and a lower seat back airbag, corresponding to the occupant's scapular region, lumbar region, and sacral region, respectively. The rear-seat display devices include a left-side rear-seat display device and a right-side rear-seat display device, both corresponding to passengers experiencing motion sickness in the rear seats.

[0041] Furthermore, this exemplary embodiment does not limit the types of motion sickness intervention devices, nor does it limit the types of operating parameters of head-up displays, air conditioning devices, fragrance devices, seat airbags, and rear-seat display devices.

[0042] In this way, based on the multimodal device collaborative intervention mechanism, the head-up display device is not only an optical display device, the air conditioning device is not only a cooling or heating device, the fragrance device is not only functional, the seat airbag is not only a collision protection or static massage device, and the rear-seat display device is not only an entertainment device. Instead, the potential anti-motion sickness capabilities of each device are explored, so that the head-up display device, air conditioning device, fragrance device, seat airbag and rear-seat display device work together to intervene in motion sickness. This not only enhances the motion sickness intervention effect, but also improves the utilization rate of the devices. Moreover, it can adapt to the configuration of head-up display device, air conditioning device, fragrance device, seat airbag and rear-seat display device in different vehicle models. It can be integrated without modifying the electronic and electrical architecture of the whole vehicle, which is easy to mass-produce and implement at a low cost.

[0043] In addition, in this exemplary embodiment, when there is only one motion sickness intervention device, it is called a single-channel intervention method, and when there are multiple motion sickness intervention devices, it is called a multi-channel intervention method.

[0044] For example, a motion sickness intervention device configured for a certain level of motion sickness intervention includes a head-up display and a seat airbag. The head-up display has an offset amount for the display position of the virtual image, and the seat airbag has an adjustment amount for the airbag displacement of the upper seat back airbag, the middle seat back airbag, and the lower seat back airbag.

[0045] For example, in each motion sickness intervention level, as the motion sickness intervention level decreases, the number of motion sickness intervention devices configured for each motion sickness intervention level decreases and / or the parameter adjustment amount corresponding to the motion sickness intervention devices decreases; the motion sickness intervention levels, from low to high, include Level 1 motion sickness intervention, Level 2 motion sickness intervention, Level 3 motion sickness intervention and Level 4 motion sickness intervention.

[0046] In this exemplary embodiment, as the motion sickness intervention level decreases, the differences between each motion sickness intervention level are: the number of configured motion sickness intervention devices decreases, or the number of configured motion sickness intervention devices is the same, but the parameter adjustment amount corresponding to the motion sickness intervention devices decreases, or the number of configured motion sickness intervention devices decreases, and the corresponding parameter adjustment amount also decreases.

[0047] This enables multimodal, hierarchical intervention of head-up displays, air conditioning systems, fragrance systems, seat airbags, and rear-seat displays, avoiding a one-size-fits-all approach.

[0048] For example, if the seat markings for the passenger's seat do not include the left and right rear seat markings, the motion sickness intervention device, in addition to the head-up display, will add seat airbags, air conditioning, and aromatherapy devices to form a four-level motion sickness intervention system, as the levels of motion sickness intervention increase from low to high. If the seat markings for the passenger's seat include the left and / or right rear seat markings, the motion sickness intervention device, in addition to the head-up display and rear display screen, will add seat airbags, air conditioning, and aromatherapy devices to form a four-level motion sickness intervention system, as the levels of motion sickness intervention increase from low to high.

[0049] For example, if the seat markings for the passenger do not include the rear left and rear right seat markings, the motion sickness intervention devices include at least one of the following: a head-up display (HUD), a seat airbag, an air conditioning unit, and a fragrance device. As the motion sickness intervention level increases, the parameter adjustment amount corresponding to each device gradually increases, forming a four-level motion sickness intervention. If the seat markings for the passenger include the rear left and / or rear right seat markings, the motion sickness intervention devices include at least one of the following: a head-up display (HUD), a rear-seat display screen, a seat airbag, an air conditioning unit, and a fragrance device. As the motion sickness intervention level increases, the parameter adjustment amount corresponding to each device gradually increases, forming a four-level motion sickness intervention. Taking the head-up display as an example, as the motion sickness intervention level increases, the offset of the display position of the virtual image configured on the head-up display gradually increases, forming a four-level motion sickness intervention.

[0050] For example, if the seat markings for the passenger experiencing motion sickness do not include the left and right rear seat markings, the motion sickness intervention devices, in addition to the head-up display, sequentially add seat airbags, air conditioning, and aromatherapy devices as the intervention levels increase from low to high, with the parameter adjustment range for the same intervention device gradually increasing, forming a four-level motion sickness intervention. If the seat markings for the passenger experiencing motion sickness include the left and / or right rear seat markings, the motion sickness intervention devices, in addition to the head-up display and rear display screens, sequentially add seat airbags, air conditioning, and aromatherapy devices, with the parameter adjustment range for the same intervention device gradually increasing, forming a four-level motion sickness intervention. If a motion sickness intervention device configured for any motion sickness intervention level adds a seat airbag to the head-up display, then a motion sickness intervention device configured for a motion sickness intervention level one level higher than that level adds a seat airbag and an air conditioning system to the head-up display. Furthermore, the parameter adjustment range of the head-up display configured for the higher-level motion sickness intervention is greater than that of the head-up display configured for the arbitrary motion sickness intervention level, and the parameter adjustment range of the seat airbag configured for the higher-level motion sickness intervention is also greater than that of the seat airbag configured for the arbitrary motion sickness intervention level.

[0051] For example, the parameter thresholds of each motion sickness intervention device can be set by: setting them according to experimental calibration, or setting them according to the operating parameters recorded in historical motion sickness intervention operations when each motion sickness intervention device caused the motion sickness symptoms of the person to worsen.

[0052] In one embodiment, after downgrading the first motion sickness intervention level to the second motion sickness intervention level, the method further includes: if the second motion sickness intervention level is the lowest among all motion sickness intervention levels, and the second parameter value obtained after adjusting the operating parameters of the motion sickness intervention device configured for the second motion sickness intervention level according to the parameter adjustment amount is greater than the parameter threshold, then a prompt instruction for smooth vehicle driving is generated to alleviate the motion sickness symptoms of the person experiencing motion sickness based on the smooth vehicle condition.

[0053] In this embodiment, considering that even the lowest level of motion sickness intervention cannot meet the safety operating parameter limits, a prompt instruction for smooth vehicle driving is automatically generated to alleviate motion sickness symptoms through a smooth vehicle state. In this way, combined with speed adjustment, low-intrusion motion sickness intervention is achieved, further ensuring the effectiveness of motion sickness intervention.

[0054] For example, the second motion sickness intervention level is the lowest motion sickness intervention level among all motion sickness intervention levels. Its motion sickness intervention equipment includes a head-up display (HUD). After offsetting the display position of the virtual image of the HUD by the offset corresponding to the lowest motion sickness intervention level on the basis of the original offset, if it is still greater than the upper limit of the operating parameters allowed by the HUD when intervening in motion sickness, a prompt instruction for smooth vehicle driving is generated to alleviate the motion sickness symptoms of the person with motion sickness based on the smooth state of the vehicle.

[0055] In one embodiment, before downgrading the first motion sickness intervention level to the second motion sickness intervention level, the method further includes: obtaining the maximum operating parameter of the motion sickness intervention device configured for the first motion sickness intervention level, wherein the maximum operating parameter is greater than a parameter threshold; if the first parameter value is greater than the maximum operating parameter, then the first motion sickness intervention level is downgraded to the third motion sickness intervention level, wherein the level of the third motion sickness intervention level is higher than the level of the second motion sickness intervention level.

[0056] Among them, the maximum operating parameter refers to the maximum amount that the motion sickness intervention device can achieve, such as the maximum external airflow that the external airflow of the air conditioning equipment can achieve; the third motion sickness intervention level is higher than the second motion sickness intervention level, that is, the degree of motion sickness intervention corresponding to the third motion sickness intervention level is greater than the degree of motion sickness intervention corresponding to the second motion sickness intervention level; the third, second, and first in the third, second, and first motion sickness intervention levels are only used to distinguish different motion sickness intervention levels and do not represent the intervention level.

[0057] In this embodiment, considering the possibility that the operating parameters of the motion sickness intervention device may exceed the maximum operating parameters when adjusted again, after determining the first motion sickness intervention level, it is necessary to perform a feasibility check on the motion sickness intervention device. That is, to determine whether the first parameter value obtained after adjusting the operating parameters of the motion sickness intervention device configured for the first motion sickness intervention level by the parameter adjustment amount is greater than the maximum operating parameter. If the first parameter value is greater than the maximum operating parameter, it indicates that the motion sickness intervention device is not feasible, and the first motion sickness intervention level needs to be downgraded to the third motion sickness intervention level that meets the conditions. That is, after adjusting the operating parameters of the motion sickness intervention device configured for the third motion sickness intervention level by the parameter adjustment amount, the fourth parameter value obtained is less than or equal to the maximum operating parameter, so as to ensure that the motion sickness intervention operation is executed normally. The downgrade of the first motion sickness intervention level to the third motion sickness intervention level that meets the conditions is achieved based on at least one downgrade operation.

[0058] Subsequently, based on whether the value of the fourth parameter is greater than the parameter threshold, it is determined whether the third motion sickness intervention level needs to be downgraded to the second motion sickness intervention level. If it is greater, it needs to be downgraded. Downgrading the third motion sickness intervention level to the second motion sickness intervention level that meets the conditions is achieved based on at least one downgrade operation. If it is less than or equal to, the motion sickness intervention operation is directly performed on the motion sickness person based on the third motion sickness intervention level.

[0059] In this way, by combining the feasibility verification and safety verification of motion sickness intervention equipment, a double safety net is formed, which can ensure the effectiveness of motion sickness intervention without triggering equipment overload or aggravating the motion sickness symptoms of the person experiencing motion sickness.

[0060] For example, the motion sickness intervention equipment configured for the first motion sickness intervention level includes a head-up display (HUD). If the position of the virtual image displayed on the HUD is offset from its original offset by the offset corresponding to the lowest motion sickness intervention level, and this offset is greater than the maximum offset that the HUD can perform, then the first motion sickness intervention level is downgraded to the third motion sickness intervention level that meets the conditions.

[0061] For example, if the third motion sickness intervention level is the lowest among all motion sickness intervention levels, and the fourth parameter value obtained after adjusting the operating parameters of the motion sickness intervention device configured at the third motion sickness intervention level according to the parameter adjustment amount is greater than the maximum operating parameter, then a prompt instruction for smooth vehicle driving is generated to alleviate the motion sickness symptoms of the person experiencing motion sickness based on the smooth vehicle condition.

[0062] For example, if there are multiple motion sickness intervention devices configured for the first motion sickness intervention level, and the first parameter value corresponding to at least one motion sickness intervention device is greater than its maximum operating parameter, then the first motion sickness intervention level needs to be downgraded to the third motion sickness intervention level.

[0063] In one embodiment, motion sickness intervention is performed on individuals experiencing motion sickness according to a second motion sickness intervention level. This includes: if there is only one person experiencing motion sickness, the operating parameters of the motion sickness intervention equipment configured for the second motion sickness intervention level are directly adjusted according to the parameter adjustment amount to complete the motion sickness intervention operation; if there are multiple people experiencing motion sickness, the types of all motion sickness intervention equipment to be controlled are determined according to the motion sickness intervention equipment configured for the second motion sickness intervention level according to the needs of different individuals experiencing motion sickness. The motion sickness intervention equipment includes shared intervention equipment and dedicated intervention equipment for each individual experiencing motion sickness in their respective seats. Shared intervention equipment includes head-up display equipment, air conditioning equipment, and aromatherapy equipment. Dedicated intervention equipment includes seat airbags and rear-seat display screen equipment. For dedicated intervention equipment, parameters are adjusted according to their respective parameter adjustment amounts. For shared intervention equipment, parameters are adjusted according to the parameter adjustment amounts required by different individuals experiencing motion sickness to complete the motion sickness intervention operation.

[0064] Among them, shared intervention equipment refers to equipment that can provide motion sickness intervention for people in multiple seats in a vehicle, while dedicated intervention equipment refers to equipment that can provide motion sickness intervention only for people in specific seats.

[0065] In this embodiment, considering that the person experiencing motion sickness may include at least one of the following three occupants: the driver, the front passenger, and the rear passenger. Therefore, motion sickness intervention is performed based on an intelligent collaborative mechanism for multi-occupant scenarios. This mechanism distinguishes between single-person and multi-person motion sickness scenarios, dynamically identifies and coordinates shared intervention equipment and dedicated intervention equipment, and adjusts parameters according to the intervention levels of different occupants. In particular, it achieves multi-demand fusion control for shared equipment, avoiding intervention conflicts. This allows for the satisfaction of the personalized intervention needs of each seated occupant while efficiently coordinating shared and dedicated equipment, thus improving the overall accuracy of the intervention.

[0066] For example, if both the front passenger and the passenger on the left rear seat are prone to motion sickness, the second level of motion sickness intervention equipment for the front passenger includes a head-up display and a front passenger seat airbag, while the second level of motion sickness intervention equipment for the passenger on the left rear seat includes a head-up display and a left rear seat airbag. In this case, the front passenger seat airbag, as the dedicated intervention device for the front passenger, has its parameters adjusted according to its corresponding adjustment amount; the left rear seat airbag, as the dedicated intervention device for the passenger on the left rear seat, has its parameters adjusted according to its corresponding adjustment amount; while the head-up display, as a shared intervention device for both the front passenger and the passenger on the left rear seat, has its parameters adjusted based on the individual needs of each passenger, thus completing the motion sickness intervention operation.

[0067] In one embodiment, for shared intervention equipment, parameter adjustment is performed according to the parameter adjustment amount required by different motion sickness sufferers, including: if the shared intervention equipment is an air conditioning device and an aromatherapy device, the parameter adjustment amount corresponding to the higher motion sickness intervention level among the second motion sickness intervention levels required by different motion sickness sufferers is determined as the target parameter adjustment amount of the shared intervention equipment; and the operating parameters of the shared intervention equipment are adjusted according to the target parameter adjustment amount.

[0068] Specifically, the parameter adjustment amount corresponding to the higher motion sickness intervention level among the second motion sickness intervention levels required by different motion sickness sufferers is determined as the target parameter adjustment amount of the shared intervention equipment. In other words, the maximum parameter adjustment amount corresponding to the second motion sickness intervention level required by different motion sickness sufferers is determined as the target parameter adjustment amount.

[0069] In this embodiment, in scenarios involving multiple people experiencing motion sickness, a strategy is adopted to adjust the parameters of shared intervention devices such as air conditioning and fragrance by adjusting the amount corresponding to the higher intervention level. This ensures that the intervention intensity meets the needs of those with more severe motion sickness, while also taking into account the intervention effect for multiple people experiencing motion sickness.

[0070] In one embodiment, for a shared intervention device, parameter adjustment based on the parameter adjustment amount required by different motion sickness sufferers further includes: if the shared intervention device is a head-up display device, obtaining the effective viewing distance and effective viewing angle range of each passenger's seat relative to the displayed virtual image; determining the offset of the display position of the virtual image corresponding to the second motion sickness intervention level of each motion sickness sufferer as a candidate offset of the shared intervention device, wherein the operating parameters of the head-up display device include the display position of the virtual image; determining multiple total offsets after display position adjustment based on each candidate offset, and calculating each total offset with the effective viewing distance of each passenger to obtain the target viewing angle of each passenger under different total offsets; determining the target offset based on the target viewing angle of each passenger under different total offsets and the corresponding effective viewing angle range of each passenger, and adjusting the display position based on the target offset.

[0071] Among them, the effective viewing distance refers to the effective distance between the occupant's eye point position in their seat and the virtual image generated by the head-up display device. Within this distance range, the virtual image content is clear; beyond this range, the virtual image may be blurry or invisible. The effective viewing angle range refers to the range of angles within which the occupant's line of sight can comfortably cover the virtual image in their seat. Within this range, visual comfort and content readability can be ensured. The total offset is calculated by the original offset and the offset to be executed. Each seat is configured with an effective viewing distance and an effective viewing angle range, which are obtained through pre-calibration. For example, the effective viewing angle range γ corresponding to a certain seat is 15 degrees. The target viewing angle refers to the angle between the occupant's line of sight in their seat and the center of the adjusted virtual image, under the total offset. It is used to assess whether the current display position falls within the effective viewing angle range. The total offset is the total offset after adjusting the original offset according to the offset to be executed.

[0072] In this embodiment, in a multi-person motion sickness scenario, for a shared intervention device such as a head-up display, the optimal position offset of the displayed virtual image is dynamically calculated and optimized by combining the effective viewing distance and effective viewing angle range of each passenger. This enables the shared intervention device to effectively intervene in the motion sickness of each person, and adjust the display position without affecting the viewing comfort of other passengers, thus balancing the effectiveness of motion sickness intervention with user experience.

[0073] For example, the formula for calculating the target perspective is: Equation (1) in, Indicates the target's perspective; Indicates the total offset; Indicates the effective line of sight.

[0074] For example, the target offset is determined based on the target viewing angle of each occupant under different total offsets and the effective viewing angle range of each occupant: if the target viewing angle of each occupant is within the corresponding effective viewing angle range under the target total offset, then the candidate offset corresponding to the target total offset is determined as the target offset to ensure that each occupant is within the effective viewing angle range; if there are occupants whose target viewing angle is not within the corresponding effective viewing angle range under all total offsets, or if each occupant's target viewing angle is within the corresponding effective viewing angle range only under different total offsets, then the target offset is set to zero to avoid causing additional visual or tactile interference to other occupants.

[0075] In one embodiment, after performing motion sickness intervention on a person with motion sickness according to a second motion sickness intervention level, the method further includes: monitoring the number of times the person with motion sickness triggers the motion sickness intervention operation to obtain the number of interventions; if the number of interventions is greater than a preset number threshold within a preset monitoring period, then after a preset interval period, and under the condition that the motion sickness index corresponding to the person with motion sickness is greater than a preset index threshold, the motion sickness intervention operation continues to be performed on the person with motion sickness.

[0076] The index threshold can be set according to specific circumstances or needs, or it can be obtained through experimental calibration. If the motion sickness index of the passenger is greater than the index threshold, it indicates that the passenger has begun to experience motion sickness symptoms. The monitoring duration can be set according to specific circumstances or needs, or it can be obtained through experimental calibration. The interval duration can be set according to specific circumstances or needs, or it can be obtained through experimental calibration. The frequency threshold can be set according to specific circumstances or needs, or it can be obtained through experimental calibration.

[0077] For example, if the monitoring duration is set to 30 seconds, the threshold for the number of times is set to 5, and the interval duration is set to 10 seconds, if a person experiencing motion sickness triggers the motion sickness intervention operation more than 5 times within a continuous 30 seconds, then a 10-second interval is entered. If the motion sickness index of the person experiencing motion sickness is still greater than the index threshold after 10 seconds, then the motion sickness intervention operation for the person experiencing motion sickness continues.

[0078] In this embodiment, the same passenger is continuously tracked so that if the number of times the passenger triggers motion sickness intervention is too frequent, intermittent protection is taken to avoid excessive intervention that may further aggravate motion sickness symptoms.

[0079] In one embodiment, before acquiring the first speed information, motion sickness feature information, and operating parameters, the method further includes: acquiring the vehicle's second speed information and a sequence of eye images of each occupant, wherein the second speed information includes longitudinal acceleration, and the eye images in the eye image sequence are arranged in chronological order; inputting each eye image sequence into a pre-constructed semantic segmentation model to extract the contour point coordinates of the pupil edges in the eye images, thereby obtaining a sequence of contour point coordinates of the pupil edges of each occupant, wherein the contour point coordinates in the contour point coordinate sequence are arranged in chronological order; determining the tremor frequency of each occupant's pupils based on the contour point coordinate sequence, and performing a weighted calculation on the longitudinal acceleration and tremor frequency to obtain the motion sickness index of each occupant; if the motion sickness index of any occupant is greater than the index threshold, then that occupant is identified as a person suffering from motion sickness.

[0080] The chronological order is arranged according to the order in which the eye images were acquired; the longitudinal acceleration in the second velocity information can be the average value of the longitudinal acceleration during the time the eye image sequence was acquired.

[0081] In this embodiment, a lightweight semantic segmentation network is used to extract pupillary tremor features. Combined with vehicle motion information and the pupillary tremor features of each passenger, the motion sickness index of each passenger is determined, realizing millisecond-level risk index calculation. Then, based on the index threshold, it is further determined whether each passenger is motion sick. This can accurately and efficiently detect the motion sickness state of passengers and gain time for proactive intervention.

[0082] In addition, in this embodiment, if the motion sickness index of any passenger is greater than the index threshold, it indicates that there is a person with motion sickness in the vehicle and motion sickness intervention logic needs to be activated. If the motion sickness index of all passengers is less than or equal to the index threshold, it indicates that there is no person with motion sickness in the vehicle and motion sickness intervention logic does not need to be activated.

[0083] For example, eye images can be continuously acquired using an infrared pupil camera installed in the area of ​​a vehicle's roof reading light. However, this application embodiment does not limit the type of camera or the camera installation area.

[0084] For example, the construction of a semantic segmentation model includes: obtaining an eye image sample set, wherein the eye image sample set includes multiple eye image samples with labeled pupil regions; training a semantic segmentation network based on the eye image sample set to obtain a semantic segmentation model.

[0085] For example, determining the tremor frequency of the occupant's pupil based on the contour point coordinate sequence includes: performing a Fourier transform on the contour point coordinate sequence to obtain the corresponding frequency domain representation; calculating the spectral amplitude and searching for the frequency component with the largest amplitude within a preset physiological tremor frequency range; determining the frequency component corresponding to the largest amplitude as the tremor frequency of the occupant's pupil; or, inputting the contour point coordinate sequence into a pre-constructed tremor frequency prediction model to obtain the tremor frequency of the occupant's pupil, wherein the tremor frequency prediction model is trained based on the contour point coordinate sequence of the pupil edge labeled with the tremor frequency.

[0086] In addition, the above methods can be used in combination, such as taking the average of the tremor frequencies under various methods to improve the accuracy and robustness of tremor frequency estimation.

[0087] For example, the formula for calculating the motion sickness index is: Equation (2) in, Indicates the motion sickness index; Indicates the frequency of vibration; Indicates longitudinal acceleration; Weights representing the frequency of tremors; The weight represents the longitudinal acceleration.

[0088] The aforementioned motion sickness intervention method first acquires the vehicle's initial speed information, the motion sickness characteristics of the passengers inside the vehicle, and the operating parameters of each motion sickness intervention device. Then, based on the initial speed information, motion sickness characteristics, and a preset mapping relationship, it determines the appropriate initial motion sickness intervention level for the passengers. Different motion sickness intervention levels are configured with corresponding motion sickness intervention devices and parameter adjustment amounts for these devices. If, after adjusting the operating parameters of the motion sickness intervention devices configured for the initial motion sickness intervention level according to the parameter adjustment amount, the obtained initial parameter value is greater than a preset parameter threshold, then the initial motion sickness intervention level is downgraded to a second motion sickness intervention level. This parameter threshold characterizes the motion sickness... The vehicle intervention device sets the upper limit of permissible operating parameters when intervening in individuals experiencing motion sickness. Finally, based on the second motion sickness intervention level, the device adaptively determines the intervention level based on vehicle speed information and the motion sickness characteristics of the individuals inside the vehicle. Furthermore, by combining the device's operating parameters with the upper limit of permissible operating parameters, the intervention level is adaptively adjusted. This ensures the effectiveness of the intervention while avoiding exacerbation of motion sickness symptoms due to excessive adjustment of device operating parameters, thus achieving reliable, accurate, and personalized motion sickness intervention and improving the user experience.

[0089] Please see Figure 3 , Figure 3 This is a block diagram illustrating a motion sickness intervention system as shown in an exemplary embodiment of this application. The system can be applied to... Figure 1 The implementation environment shown is intended to illustrate the system, but it should be understood that the system can also be applied to other exemplary implementation environments. This embodiment does not limit the implementation environment to which the system is applicable.

[0090] like Figure 3 As shown, in an exemplary embodiment, the motion sickness intervention system 300 includes at least a data acquisition module 310, a matching module 320, an adjustment module 330, and an intervention module 340, which are described in detail below: The data acquisition module 310 is used to acquire the vehicle's first speed information, the motion sickness characteristics of the people in the vehicle, and the operating parameters of each motion sickness intervention device; The matching module 320 is used to determine the first motion sickness intervention level applicable to the person suffering from motion sickness based on the first speed information, motion sickness feature information and the preset mapping relationship. The mapping relationship represents the correspondence between different combinations of speed information and motion sickness feature information and motion sickness intervention level. Each motion sickness intervention level is configured with a corresponding motion sickness intervention device and the parameter adjustment amount of the motion sickness intervention device. The adjustment module 330 is used to downgrade the first motion sickness intervention level to the second motion sickness intervention level if the first parameter value obtained after adjusting the operating parameters of the motion sickness intervention device configured for the first motion sickness intervention level by the parameter adjustment amount is greater than the preset parameter threshold. The parameter threshold represents the upper limit of the operating parameters allowed by the motion sickness intervention device when intervening in motion sickness. Intervention module 340 is used to perform motion sickness intervention operations on individuals with motion sickness according to the second motion sickness intervention level.

[0091] It should be noted that the motion sickness intervention system provided in the above embodiments and the motion sickness intervention method provided in the above embodiments belong to the same concept. The content of the operation of each module has been described in detail in the method embodiments, and will not be repeated here.

[0092] This application also provides a vehicle that uses the motion sickness intervention method as described above, or includes the motion sickness intervention system as described above.

[0093] Please see Figure 4 , Figure 4 This is a schematic diagram of the structure of an in-vehicle terminal provided in one embodiment of this application. Figure 4 A schematic diagram of a computer system suitable for implementing the vehicle-mounted terminal of this application is shown. It should be noted that... Figure 4 The computer system 400 of the vehicle terminal shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0094] like Figure 4 As shown, the computer system 400 includes a Central Processing Unit (CPU) 401, which can perform various appropriate actions and processes, such as executing the methods described in the above embodiments, based on programs stored in Read-Only Memory (ROM) 402 or programs loaded from storage portion 408 into Random Access Memory (RAM) 403. The RAM 403 also stores various programs and data required for system operation. The CPU 401, ROM 402, and RAM 403 are interconnected via a bus 404. An Input / Output (I / O) interface 405 is also connected to the bus 404.

[0095] The following components are connected to I / O interface 405: an input section 406 including a keyboard, mouse, etc.; an output section 407 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 408 including a hard disk, etc.; and a communication section 409 including a network interface card such as a LAN (Local Area Network) card, modem, etc. The communication section 409 performs communication processing via a network such as the Internet. A drive 410 is also connected to I / O interface 405 as needed. A removable medium 411, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., is installed on drive 410 as needed so that computer programs read from it can be installed into storage section 408 as needed.

[0096] Specifically, according to embodiments of this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program including a computer program for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication section 409, and / or installed from removable medium 411. When the computer program is executed by central processing unit (CPU) 401, it performs various functions defined in the system of this application.

[0097] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. A method for intervening in motion sickness, characterized in that, The method includes: Acquire the vehicle's initial speed information, the motion sickness characteristics of passengers inside the vehicle, and the operating parameters of each motion sickness intervention device; Based on the first speed information, the motion sickness feature information and the preset mapping relationship, the first motion sickness intervention level applicable to the motion sick person is determined. The mapping relationship represents the correspondence between different combinations of speed information and motion sickness feature information and motion sickness intervention level. Each motion sickness intervention level is equipped with a corresponding motion sickness intervention device and the parameter adjustment amount of the motion sickness intervention device. If the operating parameters of the motion sickness intervention device configured for the first motion sickness intervention level are adjusted according to the parameter adjustment amount, and the obtained first parameter value is greater than the preset parameter threshold, then the first motion sickness intervention level is downgraded to the second motion sickness intervention level, wherein the parameter threshold represents the upper limit of the operating parameters allowed by the motion sickness intervention device when intervening in the motion sickness person; Motion sickness intervention procedures are performed on the individuals experiencing motion sickness according to the second motion sickness intervention level.

2. The motion sickness intervention method according to claim 1, characterized in that, After downgrading the first motion sickness intervention level to the second motion sickness intervention level, the following is also included: If the second motion sickness intervention level is the lowest among all motion sickness intervention levels, and the second parameter value obtained after adjusting the operating parameters of the motion sickness intervention device configured for the second motion sickness intervention level according to the parameter adjustment amount is greater than the parameter threshold, then a prompt instruction for smooth vehicle driving is generated to alleviate the motion sickness symptoms of the person experiencing motion sickness based on the smooth vehicle condition.

3. The motion sickness intervention method according to claim 1, characterized in that, Before downgrading the first motion sickness intervention level to the second motion sickness intervention level, the following is also included: Obtain the maximum operating parameters of the motion sickness intervention device configured for the first motion sickness intervention level, wherein the maximum operating parameters are greater than the parameter threshold. If the first parameter value is greater than the maximum operating parameter, the first motion sickness intervention level is downgraded to the third motion sickness intervention level, wherein the third motion sickness intervention level is higher than the second motion sickness intervention level. As the motion sickness intervention level decreases, the number of motion sickness intervention devices configured for each motion sickness intervention level decreases and / or the parameter adjustment amount corresponding to the motion sickness intervention device decreases.

4. The motion sickness intervention method according to claim 1, characterized in that, Motion sickness intervention procedures are performed on the individuals experiencing motion sickness according to the second motion sickness intervention level, including: If the person experiencing motion sickness is a single individual, the operating parameters of the motion sickness intervention device configured for the second motion sickness intervention level are adjusted according to the parameter adjustment amount to complete the motion sickness intervention operation. If there are multiple people experiencing motion sickness, the types of motion sickness intervention devices to be adjusted are determined according to the second motion sickness intervention level configured according to the needs of different people experiencing motion sickness. The motion sickness intervention devices include shared intervention devices and dedicated intervention devices for people experiencing motion sickness in each seat. The shared intervention devices include head-up display devices, air conditioning devices, and aromatherapy devices. The dedicated intervention devices include seat airbags and rear-seat display devices. For the dedicated intervention device, the parameters are adjusted according to their respective parameter adjustment values. For the shared intervention device, the parameters are adjusted according to the different motion sickness patients' needs to complete the motion sickness intervention operation.

5. The motion sickness intervention method according to claim 4, characterized in that, For the shared intervention device, parameter adjustments are made according to the different needs of individuals experiencing motion sickness, including: If the shared intervention device is the air conditioning device and the fragrance device, then the parameter adjustment amount corresponding to the higher motion sickness intervention level among the second motion sickness intervention levels required by different motion sickness patients is determined as the target parameter adjustment amount of the shared intervention device. The operating parameters of the shared intervention device are adjusted according to the target parameter adjustment amount.

6. The motion sickness intervention method according to claim 4, characterized in that, For the shared intervention device, adjusting the parameters according to the different needs of people experiencing motion sickness also includes: If the shared intervention device is the head-up display device, then the effective viewing distance and effective viewing angle range of each passenger's seat relative to the displayed virtual image are obtained; The offset of the display position of the virtual image corresponding to the second motion sickness intervention level of each motion sickness person is determined as the candidate offset of the shared intervention device, wherein the operating parameters of the head-up display device include the display position of the virtual image; Based on each candidate offset, determine multiple total offsets after the display position adjustment, and calculate each total offset with the effective viewing distance of each occupant to obtain the target viewing angle of each occupant under different total offsets; The target offset is determined based on the target viewing angle of each occupant under different total offsets and the effective viewing angle range corresponding to each occupant, and the display position is adjusted according to the target offset.

7. The motion sickness intervention method according to any one of claims 1 to 6, characterized in that, After performing motion sickness intervention on the person experiencing motion sickness according to the second motion sickness intervention level, the procedure further includes: The number of times the motion sickness intervention was triggered by the individuals experiencing motion sickness was monitored to obtain the number of interventions. If the number of interventions exceeds a preset threshold within a preset monitoring period, then after a preset interval, and provided that the motion sickness index of the person experiencing motion sickness exceeds a preset index threshold, the motion sickness intervention operation will continue for that person.

8. The motion sickness intervention method according to claim 7, characterized in that, Before acquiring the first speed information, the motion sickness characteristic information, and the operating parameters, the process further includes: Acquire the vehicle's second speed information and a sequence of eye images of each occupant, wherein the second speed information includes longitudinal acceleration, and the eye images in the eye image sequence are arranged in chronological order; Each eye image sequence is input into a pre-built semantic segmentation model to extract the contour point coordinates of the pupil edge in the eye image, thereby obtaining the contour point coordinate sequence of each occupant's pupil edge, wherein the contour point coordinates in the contour point coordinate sequence are arranged in chronological order. Based on the coordinate sequence of each contour point, the tremor frequency of each passenger's pupils is determined, and the longitudinal acceleration and the tremor frequency are weighted and calculated to obtain the motion sickness index of each passenger. If any passenger's motion sickness index is greater than the index threshold, then that passenger is identified as a person suffering from motion sickness.

9. A motion sickness intervention system, characterized in that, The system includes: The data acquisition module is used to obtain the vehicle's initial speed information, motion sickness characteristics of passengers in the vehicle, and operating parameters of various motion sickness intervention devices. The matching module is used to determine the first motion sickness intervention level applicable to the person experiencing motion sickness based on the first speed information, the motion sickness feature information and the preset mapping relationship. The mapping relationship represents the correspondence between different combinations of speed information and motion sickness feature information and the motion sickness intervention level. Each motion sickness intervention level is configured with a corresponding motion sickness intervention device and the parameter adjustment amount of the motion sickness intervention device. The adjustment module is used to downgrade the first motion sickness intervention level to the second motion sickness intervention level if the first parameter value obtained after adjusting the operating parameters of the motion sickness intervention device configured for the first motion sickness intervention level according to the parameter adjustment amount is greater than a preset parameter threshold. The parameter threshold represents the upper limit of the operating parameters allowed by the motion sickness intervention device when intervening in the motion sickness person. The intervention module is used to perform motion sickness intervention operations on the person experiencing motion sickness according to the second motion sickness intervention level.

10. A vehicle, characterized in that, The motion sickness intervention method as described in any one of claims 1 to 8 may be used, or the motion sickness intervention system as described in claim 9 may be used.

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