Method and device for preventing carsickness of passengers and medium

Abstract

The invention relates to a method and device for preventing carsickness of passengers and a medium, and belongs to the technical field of vehicles. The method comprises the steps that the current transverse acceleration of the vehicle is detected; detecting a current angular velocity of the vehicle; if the current transverse acceleration is greater than or equal to the transverse acceleration threshold and the current angular velocity is greater than or equal to the angular velocity threshold, detecting whether an anti-carsickness active help-seeking instruction is received at the current moment; if the anti-carsickness active help-seeking instruction is received at the current moment, playing an audio frequency of a preset frequency or a breathing guidance audio frequency so as to relieve disorder of a vestibular system; if the anti-carsickness active help seeking instruction is not received at the current moment, detecting a current physiological index of the passenger; judging whether the current physiological index is in a carsickness characterization range or not; and if the current physiological index is within the carsickness characterization range, entering a carsickness relieving mode. By detecting the shaking condition of the vehicle and the physiological indexes of the passengers, the carsickness relieving mode is automatically triggered, and the user experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a method, a device and a medium for preventing passengers from getting carsick. Background Art

[0002] Motion sickness is a common syndrome caused by information inconsistency between the visual system, vestibular system and proprioceptive system. There are two ways to relieve motion sickness: first, reduce the occurrence of motion sickness by providing stable visual stimulation through the large screen in the car; second, reduce the information inconsistency between the vestibular system and the visual system through anti-motion sickness glasses; third, relieve motion sickness through medication.

[0003] Disadvantages of the above methods: Disadvantage of the first method: the need to keep staring at the screen, affecting the riding experience; Disadvantage of the second method: anti-motion sickness glasses are inconvenient to use; Disadvantage of the third method: drugs can cause side effects. Summary of the invention

[0004] The present disclosure provides a method, device and medium for preventing passengers from motion sickness, so as to solve the above technical problems.

[0005] According to a first aspect of the present disclosure, a method for preventing passengers from getting motion sickness is provided, the method comprising: detecting a current lateral acceleration of a vehicle by means of a high-precision accelerometer; detecting a current angular velocity of the vehicle by means of a gyroscope; if the current lateral acceleration is greater than or equal to a lateral acceleration threshold, and the current angular velocity is greater than or equal to an angular velocity threshold, detecting whether an anti-motion sickness active help instruction is received at the current moment; if an anti-motion sickness active help instruction is received at the current moment, playing an audio or breathing guidance audio of a preset frequency to relieve the disorder of the vestibular system; if no anti-motion sickness active help instruction is received at the current moment, detecting the current physiological index of the passenger by means of a sensor attached to the passenger's body; judging whether the current physiological index is within the range of motion sickness characterization; if the current physiological index is within the range of motion sickness characterization, entering a motion sickness relief mode.

[0006] In some embodiments, the lateral acceleration threshold is set to 0.3g.

[0007] In some embodiments, the angular velocity threshold is set to 0.2 rad / s.

[0008] In some embodiments, the physiological indicator is heart rate, heart rate variability, skin electrical response, or respiratory rate; the motion sickness characterization range of heart rate is 70 beats / minute to 120 beats / minute; the motion sickness characterization range of heart rate variability is 42 milliseconds to 58.8 milliseconds; the motion sickness characterization range of skin electrical response is 30µS to 50µS; the motion sickness characterization range of respiratory rate is 25 times / minute to 30 times / minute.

[0009] In some embodiments, the preset frequency is 1 Hz, 2 Hz, or 4 Hz.

[0010] According to a second aspect of the present disclosure, there is provided a device for preventing passengers from getting motion sickness, comprising: a current lateral acceleration detection module for detecting the current lateral acceleration of a vehicle by means of a high-precision accelerometer; a current angular velocity detection module for detecting the current angular velocity of the vehicle by means of a gyroscope; an anti-motion sickness active help instruction detection module for detecting whether an anti-motion sickness active help instruction is received at the current moment if the current lateral acceleration is greater than or equal to a lateral acceleration threshold, and the current angular velocity is greater than or equal to an angular velocity threshold; an audio playback module for playing an audio or breathing guidance audio of a preset frequency to relieve the disorder of the vestibular system if an anti-motion sickness active help instruction is received at the current moment; a current physiological index detection module for detecting the current physiological index of the passenger by means of a sensor attached to the passenger's body if no anti-motion sickness active help instruction is received at the current moment; a motion sickness characterization range judgment module for judging whether the current physiological index is within the motion sickness characterization range; and a motion sickness relief module entry module for entering a motion sickness relief mode if the current physiological index is within the motion sickness characterization range.

[0011] According to a third aspect of the present disclosure, a device for preventing passengers from getting motion sickness is provided, comprising: a memory; and a processor coupled to the memory, the processor being configured to execute the method for preventing passengers from getting motion sickness as described above based on instructions stored in the memory.

[0012] According to a fourth aspect of the present disclosure, a computer storable medium is provided, on which computer program instructions are stored, and when the instructions are executed by a processor, the method for preventing passengers from motion sickness as described above is implemented.

[0013] The beneficial effects of the present disclosure are as follows: by detecting the shaking of the vehicle (lateral acceleration, angular velocity) and the physiological indicators of the passengers, the motion sickness of the passengers is determined. When the passengers are motion sick, audio stimulation is automatically played to relieve the disorder of the vestibular system and relieve motion sickness. When the shaking of the vehicle is detected and the anti-motion sickness active help command is detected, the audio to relieve motion sickness is directly played, and the anti-motion sickness active help priority is higher than the motion sickness relief automatic trigger mode. Since motion sickness can be effectively relieved through audio, there is no need to use drugs, anti-motion sickness glasses, and visual compensation systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0015] Figure 1 is a flow chart illustrating a method for preventing passengers from experiencing motion sickness according to some embodiments of the present disclosure.

[0016] Figure 2 is a block diagram showing an apparatus for preventing passengers from motion sickness according to some embodiments of the present disclosure.

[0017] Figure 3 is a block diagram showing an apparatus for preventing passengers from motion sickness according to other embodiments of the present disclosure.

[0018] Figure 4 is a block diagram illustrating a computer system for implementing some embodiments of the present disclosure. DETAILED DESCRIPTION

[0019] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure unless otherwise specifically stated.

[0020] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0021] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0022] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0023] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0024] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0025] Figure 1 is a flow chart showing a method for preventing passengers from motion sickness according to some embodiments of the present disclosure. Figure 1 As shown, the method for preventing passengers from motion sickness includes steps 110 to 170.

[0026] In step 110 , the current lateral acceleration of the vehicle is detected by means of a high-precision accelerometer.

[0027] In step 120 , the current angular velocity of the vehicle is detected with the aid of a gyroscope.

[0028] In step 130, if the current lateral acceleration is greater than or equal to the lateral acceleration threshold, and the current angular velocity is greater than or equal to the angular velocity threshold, it is detected whether an anti-motion sickness active assistance instruction is received at the current moment.

[0029] In step 140, if an anti-motion sickness active help instruction is received at the current moment, an audio with a preset frequency or a breathing guidance audio is played to relieve the disorder of the vestibular system.

[0030] In step 150, if no anti-motion sickness active assistance command is received at the current moment, the current physiological index of the passenger is detected by means of a sensor attached to the passenger's body.

[0031] In step 160, it is determined whether the current physiological index is within the range of motion sickness.

[0032] In step 170, if the current physiological index is within the range of motion sickness representation, the motion sickness relief mode is entered.

[0033] The sensors monitor passengers’ physiological indicators in real time, such as heart rate (HR), heart rate variability (HRV), galvanic skin response (EDA / GSR) and respiratory rate, as follows: Heart rate (HR): Normal state: 60-100 beats / minute; Motion sickness: usually increases by 10-20%, heart rate rises to about 70-120 beats / minute;

[0034] Heart rate variability (HRV): Normal state: HRV is high. Typical values ​​of heart rate variability (HRV) are usually expressed in the form of SDNN (standard deviation) or RMSSD (root mean square deviation). For healthy adults, the normal SDNN value is 50-70 milliseconds, while the normal range of RMSSD is 20-50 milliseconds; When motion sickness occurs: HRV decreases significantly, with a decrease of about 16-20%.

[0035] Galvanic skin response (EDA / GSR): Normal state: 5-20 µS; when motion sickness occurs: may increase to 30-50 µS, an increase of about 50%.

[0036] Respiratory rate: Normal state: 12-20 times / minute; when motion sickness occurs: rises to about 25-30 times / minute.

[0037] The vehicle's shaking is monitored by high-precision accelerometers and gyroscopes, as follows: Acceleration (LateralAcceleration): Under normal conditions, lateral acceleration remains below 0.1-0.2g and will not cause motion sickness symptoms; when the lateral acceleration exceeds 0.2g, especially above 0.3g, the risk of motion sickness increases significantly.

[0038] Angular Velocity (measured by gyroscope): In the range of 0.05-0.1 rad / s, passengers generally do not feel motion sickness; when the angular velocity exceeds 0.1 rad / s, especially 0.2 rad / s, motion sickness symptoms will appear significantly.

[0039] Quick response: When a passenger is detected to be experiencing possible motion sickness symptoms, the system immediately initiates relief mode, playing audio of specific frequencies to stimulate the vestibular system or providing breathing guidance audio: as follows: Studies have shown that audio in the low-frequency range of 1 Hz to 4 Hz can have a positive effect on relieving motion sickness symptoms. For example, audio frequencies of 1 Hz, 2 Hz, and 4 Hz are considered effective.

[0040] Active help from the user: Passengers can actively request help through voice commands, and the system will play corresponding soothing audio or provide personalized guidance based on the request. Active help has a higher priority than the above automatic trigger. When the user makes a request, the voice prompts to enter the motion sickness relief mode. Automatic triggering is a bottom-line mechanism. When the user's physiological indicators and vehicle shaking reach critical values, the voice actively broadcasts to ask the user whether to turn on the motion sickness relief mode.

[0041] In the method of the embodiment of the present disclosure, the motion sickness of the passenger is determined by detecting the shaking of the vehicle (lateral acceleration, angular velocity) and the physiological indicators of the passenger. When motion sickness occurs, audio stimulation is automatically played to relieve the disorder of the vestibular system and relieve motion sickness. When the shaking of the vehicle is detected and the anti-motion sickness active help instruction is detected, the audio to relieve motion sickness is directly played, and the anti-motion sickness active help has a higher priority than the motion sickness relief automatic trigger mode. Since motion sickness can be effectively relieved through audio, there is no need to use drugs, anti-motion sickness glasses, and visual compensation systems.

[0042] Figure 2 is a block diagram showing an apparatus for preventing passengers from motion sickness according to some embodiments of the present disclosure. Figure 2 As shown, the device 200 for preventing passengers from motion sickness includes a current lateral acceleration detection module 210, a current angular velocity detection module 220, an anti-motion sickness active help instruction detection module 230, an audio playback module 240, a current physiological index detection module 250, a motion sickness characterization range judgment module 260, and a motion sickness relief module entry module 270.

[0043] The current lateral acceleration detection module 210 is configured to detect the current lateral acceleration of the vehicle by means of a high-precision accelerometer;

[0044] The current angular velocity detection module 220 is configured to detect the current angular velocity of the vehicle by means of a gyroscope;

[0045] The motion sickness prevention active help-seeking instruction detection module 230 is configured to detect whether the motion sickness prevention active help-seeking instruction is received at the current moment if the current lateral acceleration is greater than or equal to the lateral acceleration threshold and the current angular velocity is greater than or equal to the angular velocity threshold;

[0046] The audio playing module 240 is configured to play an audio of a preset frequency or a breathing guidance audio to relieve the disorder of the vestibular system if an anti-motion sickness active help instruction is received at the current moment;

[0047] The current physiological index detection module 250 is configured to detect the current physiological index of the passenger by means of a sensor attached to the passenger's body if no anti-motion sickness active help instruction is received at the current moment;

[0048] A motion sickness characterization range determination module 260 is configured to determine whether the current physiological index is within a motion sickness characterization range;

[0049] The motion sickness relief module enters module 270, and is configured to enter a motion sickness relief mode if the current physiological indicator is within the motion sickness characterization range.

[0050] In the device of the disclosed embodiment, the motion sickness of the passenger is determined by detecting the shaking of the vehicle (lateral acceleration, angular velocity) and the physiological indicators of the passenger. When motion sickness occurs, audio stimulation is automatically played to relieve the disorder of the vestibular system and relieve motion sickness. When the shaking of the vehicle is detected and the anti-motion sickness active help instruction is detected, the audio to relieve motion sickness is directly played, and the anti-motion sickness active help has a higher priority than the motion sickness relief automatic trigger mode. Since motion sickness can be effectively relieved through audio, there is no need to use drugs, anti-motion sickness glasses, and visual compensation systems.

[0051] Figure 3 is a block diagram showing an apparatus for preventing passengers from motion sickness according to other embodiments of the present disclosure.

[0052] like Figure 3 As shown, the device 300 for preventing motion sickness of a passenger includes a memory 310; and a processor 320 coupled to the memory 310. The memory 310 is used to store instructions for executing the corresponding embodiment of the method for preventing motion sickness of a passenger. The processor 320 is configured to execute the method for preventing motion sickness of a passenger in any of some embodiments of the present disclosure based on the instructions stored in the memory 310.

[0053] Figure 4 is a block diagram showing a computer system for implementing some embodiments of the present disclosure. Figure 4 As shown, computer system 400 may be embodied in the form of a general purpose computing device. Computer system 400 includes memory 410, processor 420, and bus 430 that connects various system components.

[0054] The memory 410 may include, for example, a system memory, a non-volatile storage medium, etc. The system memory may store, for example, an operating system, an application program, a boot loader, and other programs. The system memory may include a volatile storage medium, such as a random access memory (RAM) and / or a cache memory. The non-volatile storage medium may store, for example, instructions for executing at least one of the corresponding embodiments of the method for preventing motion sickness in passengers. The non-volatile storage medium includes, but is not limited to, a disk memory, an optical memory, a flash memory, and the like.

[0055] The processor 420 may be implemented by a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistors, etc., as discrete hardware components. Accordingly, each module in the entry module such as the current lateral acceleration detection module, the current angular velocity detection module, the anti-motion sickness active help instruction detection module, the audio playback module, the current physiological index detection module, the motion sickness characterization range judgment module, and the motion sickness relief module may be implemented by a central processing unit (CPU) running instructions in a memory to execute corresponding steps, or by a dedicated circuit to execute corresponding steps.

[0056] The bus 430 may use any of a variety of bus architectures, including, but not limited to, an Industry Standard Architecture (ISA) bus, a Micro Channel Architecture (MCA) bus, and a Peripheral Component Interconnect (PCI) bus.

[0057] The computer system 400 may also include an input / output interface 440, a network interface 450, a storage interface 460, etc. These interfaces 440, 450, 460, the memory 410, and the processor 420 may be connected via a bus 430. The input / output interface 440 may provide a connection interface for input / output devices such as a display, a mouse, and a keyboard. The network interface 450 may provide a connection interface for various networked devices. The storage interface 460 may provide a connection interface for external storage devices such as a floppy disk, a USB flash drive, and an SD card.

[0058] Here, various aspects of the present disclosure are described with reference to flowcharts and / or block diagrams of methods, devices, and computer program products according to embodiments of the present disclosure. It should be understood that each frame of the flowchart and / or block diagram and the combination of frames can be implemented by computer-readable program instructions.

[0059] These computer-readable program instructions may be provided to a processor of a general-purpose computer, a special-purpose computer or other programmable device to produce a machine, so that the processor executes the instructions to produce means for implementing the functions specified in one or more blocks in the flowchart and / or block diagram.

[0060] These computer-readable program instructions may also be stored in a computer-readable memory, which cause the computer to work in a specific manner to produce an article of manufacture, including instructions for implementing the functions specified in one or more blocks in the flowchart and / or block diagram.

[0061] The present disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects.

[0062] In the present disclosure, the motion sickness of the passenger is determined by detecting the shaking of the vehicle (lateral acceleration, angular velocity) and the physiological indicators of the passenger. When motion sickness occurs, audio stimulation is automatically played to relieve the disorder of the vestibular system and relieve motion sickness. When the shaking of the vehicle is detected and the anti-motion sickness active help command is detected, the audio to relieve motion sickness is directly played. The priority of the anti-motion sickness active help is higher than the automatic trigger mode for relieving motion sickness. Since motion sickness can be effectively relieved through audio, there is no need to use drugs, anti-motion sickness glasses, and visual compensation systems.

[0063] So far, the method, device and medium for preventing motion sickness of passengers according to the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0064] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A method for preventing passengers from motion sickness, characterized in that: The method comprises: Detecting the current lateral acceleration of the vehicle with the aid of a high-precision accelerometer; Detect the current angular velocity of the vehicle with the help of a gyroscope; If the current lateral acceleration is greater than or equal to the lateral acceleration threshold, and the current angular velocity is greater than or equal to the angular velocity threshold, detecting whether an anti-motion sickness active assistance instruction is received at the current moment; If an anti-motion sickness active help command is received at the current moment, an audio with a preset frequency or a breathing guidance audio is played to relieve the disorder of the vestibular system; If no anti-motion sickness active help command is received at the current moment, the current physiological indicators of the passenger are detected by means of sensors attached to the passenger's body; Determining whether the current physiological indicator is within the range of motion sickness indication; If the current physiological index is within the range of motion sickness, the motion sickness relief mode is entered.

2. The method for preventing passengers from motion sickness according to claim 1, characterized in that: The lateral acceleration threshold is set to 0.3g.

3. The method for preventing passengers from motion sickness according to claim 1, characterized in that: The angular velocity threshold is set to 0.2 rad / s.

4. The method for preventing passengers from motion sickness according to claim 1, characterized in that: The physiological index is heart rate, heart rate variability, galvanic skin response, or respiratory rate; The heart rate range for motion sickness is 70 to 120 beats per minute. The range of heart rate variability in representing motion sickness is 42 milliseconds to 58.8 milliseconds; The range of motion sickness characterization of skin galvanic response is 30µS~50µS; The respiratory rate that indicates motion sickness ranges from 25 to 30 times per minute.

5. The method for preventing passengers from motion sickness according to claim 1, characterized in that: The preset frequency is 1 Hz, 2 Hz, or 4 Hz.

6. A device for preventing passengers from motion sickness, characterized in that: include: A current lateral acceleration detection module, used to detect the current lateral acceleration of the vehicle with the aid of a high-precision accelerometer; A current angular velocity detection module, used to detect the current angular velocity of the vehicle with the aid of a gyroscope; an anti-motion sickness active help-seeking instruction detection module, configured to detect whether an anti-motion sickness active help-seeking instruction is received at the current moment if the current lateral acceleration is greater than or equal to a lateral acceleration threshold, and the current angular velocity is greater than or equal to an angular velocity threshold; An audio playback module is used to play an audio of a preset frequency or a breathing guidance audio to relieve the disorder of the vestibular system if an anti-motion sickness active help instruction is received at the current moment; The current physiological index detection module is used to detect the current physiological index of the passenger by means of a sensor attached to the passenger's body if no anti-motion sickness active help instruction is received at the current moment; A motion sickness characterization range judgment module, used to judge whether the current physiological index is within the motion sickness characterization range; The motion sickness relief module enters the module, and is used to enter the motion sickness relief mode if the current physiological index is within the motion sickness characterization range.

7. A device for preventing passengers from motion sickness, characterized in that: include: Memory; as well as A processor coupled to the memory, wherein the processor is configured to execute the method for preventing motion sickness of a passenger according to any one of claims 1 to 5 based on instructions stored in the memory.

8. A computer storable medium, characterized in that: Computer program instructions are stored thereon, and when the instructions are executed by a processor, the method for preventing passengers from motion sickness as claimed in any one of claims 1 to 5 is implemented.

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