Carsickness sensing device, seat, vehicle and motion sickness detection method

Abstract

The invention discloses a carsickness sensing device, a seat, a vehicle and a motion sickness detection method. The carsickness sensing device comprises a seat cover, a driving device and a controller, the sensor is arranged on the seat cover; the motion sickness detection integrated module is arranged on the seat cover and connected with the sensor, and the motion sickness detection integrated module is configured to be used for receiving the sensing signal of the sensor, determining body sign information of the user according to the sensing signal and sending the body sign information to the terminal equipment. According to the carsickness sensing device disclosed by the invention, the motion sickness detection integrated module integrates a body sign signal detection function, a sensing signal processing function and an information transmission function, so that additional components do not need to be arranged at other positions to realize corresponding functions, the integration level is improved, and the cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent seats, and in particular to a motion sickness sensing device, a seat, a vehicle and a motion sickness detection method. Background Art

[0002] With the booming development of the automobile industry, traffic congestion is becoming more and more common. Many people are prone to motion sickness symptoms such as nausea, dizziness, and vomiting when riding in public transportation, which seriously affects the comfort of the journey and daily travel. At present, motion sickness detection devices or systems usually use one or more sensors to detect the vital signs of passengers, but the current smart seat covers only have the function of detecting vital signs, or need to set up additional electronic control units in other locations of the vehicle, such as on the seats, to analyze the vital signs to determine whether the user is in a state of motion sickness, which has low integration and high cost. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a motion sickness sensing device, which improves integration and reduces costs.

[0004] The present invention also provides a seat, comprising the above-mentioned motion sickness sensing device.

[0005] The present invention also provides a vehicle, comprising the above-mentioned seat.

[0006] The present invention also proposes a motion sickness detection method, which is detected by the above-mentioned motion sickness sensing device.

[0007] A motion sickness sensing device according to an embodiment of the present invention includes: a seat cover; a sensor, wherein the sensor is arranged on the seat cover; and a motion sickness detection integrated module, wherein the motion sickness detection integrated module is arranged on the seat cover and connected to the sensor, wherein the motion sickness detection integrated module is configured to receive a sensing signal from the sensor and determine physical sign information of a user based on the sensing signal, and determine whether the user is in a motion sickness state and / or the degree of the motion sickness state based on the physical sign information of the user, and send the information to a terminal device.

[0008] According to the motion sickness sensing device of the embodiment of the present invention, the sensor and the motion sickness detection integrated module are arranged on the seat cover, the motion sickness detection integrated module is connected to the sensor, and the motion sickness detection integrated module is configured to receive the sensing signal of the sensor and determine the user's physical sign information according to the sensing signal, and determine whether the user is in a motion sickness state and / or the degree of the motion sickness state according to the user's physical sign information, and send it to the terminal device. The motion sickness detection integrated module integrates the physical sign signal detection function, the sensing signal processing function and the information transmission function, thereby, there is no need to arrange additional components at other positions to realize the above functions, thereby improving the integration and reducing the cost.

[0009] In some embodiments of the present invention, the physical sign information includes at least one of a respiratory rate, a heart rate, a power spectrum density of a low-frequency signal of heart rate variability, and a power spectrum density of a high-frequency signal of heart rate variability.

[0010] In some embodiments of the present invention, the motion sickness detection integrated module includes: a motion sickness detection algorithm module, which is connected to the sensor, used to receive the sensor signal of the sensor and determine the user's physical sign information based on the sensor signal, and determine whether the user is in a motion sickness state and / or the degree of the motion sickness state based on the user's physical sign information; a wireless transmission module, which is connected to the motion sickness detection algorithm module, used to wirelessly send the user's physical sign information to a terminal device, and the motion sickness detection algorithm module and the wireless transmission module are integrated into one.

[0011] In some embodiments of the present invention, the wireless transmission module is a WIFI module or a Bluetooth module.

[0012] In some embodiments of the present invention, the motion sickness detection integrated module is disposed inside or outside the seat cover.

[0013] In some embodiments of the present invention, when the motion sickness detection integrated module is disposed outside the seat cover, the motion sickness detection integrated module is disposed at both side edges of the seat cover in the width direction.

[0014] In some embodiments of the present invention, the sensor is disposed inside the seat cover.

[0015] In some embodiments of the present invention, along a thickness direction of the seat cover, the seat cover includes multiple layers of seat layer covers, and the sensor is disposed between two adjacent layers of the seat layer covers.

[0016] In some embodiments of the present invention, the seat layer cover is a cloth layer, a fabric layer, a linen layer, a leather layer, a plush layer, an ice silk layer or a polyester layer, and the materials of the multiple layers of the seat layer cover are the same or different.

[0017] In some embodiments of the present invention, the sensor is adhered to the seat cover or sewn onto the seat cover.

[0018] In some embodiments of the present invention, the seat cover includes a seat cushion cover and a backrest cover, the seat cushion cover and the backrest cover are separate parts or integrated parts, and at least one of the seat cushion cover and the backrest cover is provided with the sensor; or, the seat cover is a seat cushion cover or a backrest cover.

[0019] In some embodiments of the present invention, the sensor is provided in the seat cushion cover, the seat cushion cover has a sciatic area and a thigh area, and the sensor is provided in the sciatic area and / or the thigh area; and / or, the sensor is provided in the backrest cover, the backrest cover has a chest area corresponding to the user's chest cavity, and the sensor is provided in the chest area.

[0020] In some embodiments of the present invention, at least one of the two sides in the width direction of the seat cover has an airbag outlet; and / or the seat cover is a full-cover type or a half-cover type; and / or the seat cover is provided with Velcro for connection.

[0021] In some embodiments of the present invention, the sensor is one or more; and / or the sensor is a flexible sensor; and / or the length of the sensor is greater than or equal to 2 cm; and / or the width of the sensor is greater than or equal to 1 cm; and / or the thickness of the sensor is less than or equal to 5 mm; and / or the sensor is in the shape of a strip, a wave, a circle, a rectangle, a triangle, or a combination of at least two of the strip, the wave, the circle, the rectangle and the triangle.

[0022] In some embodiments of the present invention, the motion sickness sensing device further includes a power supply device, which is disposed on the seat cover and is used to supply power to the motion sickness detection integrated module and / or the sensor.

[0023] A seat according to an embodiment of the present invention includes the above-mentioned motion sickness sensing device.

[0024] According to the seat of the embodiment of the present invention, by providing the above-mentioned motion sickness sensing device, the sensor and the motion sickness detection integrated module are provided on the seat cover, the motion sickness detection integrated module is connected to the sensor, and the motion sickness detection integrated module is configured to receive the sensing signal of the sensor and determine the user's physical sign information according to the sensing signal, and determine whether the user is in a motion sickness state and / or the degree of motion sickness according to the user's physical sign information, and send it to the terminal device. The motion sickness detection integrated module integrates the physical sign signal detection function, the sensing signal processing function and the information transmission function, thereby, there is no need to set additional components at other positions to realize the above-mentioned functions, thereby improving the integration and reducing the cost.

[0025] A vehicle according to an embodiment of the present invention includes the above-mentioned seat.

[0026] According to the vehicle of the embodiment of the present invention, by providing the above-mentioned seat and the above-mentioned motion sickness sensing device, the sensor and the motion sickness detection integrated module are provided on the seat cover, the motion sickness detection integrated module is connected to the sensor, and the motion sickness detection integrated module is configured to receive the sensing signal of the sensor and determine the user's body sign information according to the sensing signal, and determine whether the user is in a motion sickness state and / or the degree of motion sickness according to the user's body sign information, and send it to the terminal device. The motion sickness detection integrated module integrates the body sign signal detection function, the sensing signal processing function and the information transmission function, thereby, there is no need to provide additional components at other positions to realize the above-mentioned functions, thereby improving the integration and reducing the cost.

[0027] According to the motion sickness detection method of the embodiment of the present invention, detection is performed by the above-mentioned motion sickness sensing device; the motion sickness detection method comprises:

[0028] determining that a user is seated on the seat cover;

[0029] Obtaining a pressure value of the sensor;

[0030] Determining the user's physical sign information according to the pressure value of the sensor;

[0031] Determine that the user is experiencing motion sickness;

[0032] The signal that the user is in a motion sickness state is transmitted to the terminal device.

[0033] According to the motion sickness detection method of the embodiment of the present invention, the above-mentioned motion sickness sensing device is used for detection, and the sensor and the motion sickness detection integrated module are arranged on the seat cover, the motion sickness detection integrated module is connected to the sensor, and the motion sickness detection integrated module is configured to receive the sensing signal of the sensor and determine the user's physical sign information according to the sensing signal, and determine whether the user is in a motion sickness state and / or the degree of motion sickness according to the user's physical sign information, and send it to the terminal device. The motion sickness detection integrated module integrates the physical sign signal detection function, the sensing signal processing function and the information transmission function, thereby, there is no need to arrange additional components at other positions to realize the above-mentioned functions, thereby improving the integration and reducing the cost.

[0034] In some embodiments of the present invention, determining that the user is in a motion sickness state includes:

[0035] The user's physical sign information is detected within a preset time, and the user's physical sign information meets the motion sickness condition at least twice in a row within the preset time.

[0036] In some embodiments of the present invention, the physical sign information includes respiratory rate, heart rate, heart rate variability low frequency signal power spectral density and heart rate variability high frequency signal power spectral density, and the motion sickness onset condition includes satisfying at least three of the following conditions:

[0037] Detecting that the heart rate continues to increase within the first preset range;

[0038] detecting that the respiratory rate continues to increase within a second preset range;

[0039] detecting that the power spectrum density of the low-frequency signal of heart rate variability continues to increase within a third preset range;

[0040] It is detected that the power spectrum density of the heart rate variability high-frequency signal continues to decrease within a fourth preset range.

[0041] In some embodiments of the present invention, the first preset range is 60-100 times / minute; and / or, the second preset range is 16-20 times / minute; and / or, the third preset range is 40-80nu; and / or, the fourth preset range is 10-50nu.

[0042] In some embodiments of the present invention, a signal indicating that the user is in a motion sickness state is transmitted to a terminal device wirelessly.

[0043] In some embodiments of the present invention, the terminal device is a mobile terminal or a vehicle-mounted terminal.

[0044] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0046] Figure 1 is a three-dimensional diagram of a seat according to an embodiment of the present invention, wherein the seat cover includes a cushion cover and a backrest cover;

[0047] Figure 2 is a perspective view of a seat according to an embodiment of the present invention, wherein the seat cover includes a cushion cover;

[0048] Figure 3 4 is a flow chart of a motion sickness detection method according to an embodiment of the present invention.

[0049] Reference numerals:

[0050] 100. Seat;

[0051] 10. Motion sickness sensing device;

[0052] 1. Seat cover; 11. Cushion cover; 12. Backrest cover;

[0053] 2. Sensor;

[0054] 3. Motion sickness detection integrated module;

[0055] 20. Seat body. DETAILED DESCRIPTION

[0056] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0057] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0058] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] Reference below Figure 1 and Figure 2 A motion sickness sensing device 10 according to an embodiment of the present invention is described.

[0060] like Figure 1 and Figure 2As shown, a motion sickness sensing device 10 according to an embodiment of the present invention includes: a seat cover 1, a sensor 2 and a motion sickness detection integrated module 3.

[0061] Specifically, refer to Figure 1 and Figure 2 , sensor 2 is provided on the seat cover 1, motion sickness detection integrated module 3 is provided on the seat cover 1 and connected to sensor 2, motion sickness detection integrated module 3 is configured to receive the sensing signal of sensor 2 and determine the user's physical sign information according to the sensing signal, and determine whether the user is in a motion sickness state and / or the degree of motion sickness according to the user's physical sign information, and send it to the terminal device. It should be noted that the motion sickness detection integrated module 3 and sensor 2 can be connected by wire, such as by a shielded wire.

[0062] It can be understood that the sensor 2 can be a pressure sensor or a comprehensive sensor (such as an infrared and pressure integrated sensor, etc.). For example, the pressure sensor can detect the mechanical stress applied by the user and the mechanical stress generated by the user's physiological factors. For example, the comprehensive sensor can detect the mechanical stress applied by the user and the mechanical stress generated by the user's physiological factors and the temperature change generated by the user's physiological factors, thereby forming a sensing signal (such as a pressure signal or a temperature signal, etc.), and the motion sickness detection integrated module 3 can amplify, filter, perform digital-to-analog conversion, calculate and store the sensing signal, thereby converting it into the user's physical sign information.

[0063] After the motion sickness detection integrated module 3 determines that the user is in a motion sickness state and / or the degree of motion sickness based on the user's physical sign information, the user's motion sickness state (in or not) and the degree of motion sickness can be sent to a terminal device (such as a vehicle's central control screen, etc.), so that the terminal device can make changes to the user's environment or the user can actively control the terminal device to make changes to the environment, thereby alleviating the user's motion sickness.

[0064] For example, when the seat cover 1 is used on the seat 100 of a vehicle, after the motion sickness detection integrated module 3 determines that the user is in a motion sickness state and / or the degree of motion sickness according to the user's physical sign information, the user's motion sickness state and the degree of motion sickness can be sent to the vehicle's central control screen. The user sees the displayed information and can reduce the vehicle's speed according to the actual situation, thereby alleviating the user's motion sickness.

[0065] Among them, since the motion sickness detection integrated module 3 integrates the body sign signal detection function, the sensor signal processing function and the information transmission function, there is no need to set additional components such as electronic controllers at other locations to realize the above functions, thereby improving the integration and reducing the cost.

[0066] In addition, the seat cover 1 is used to be arranged on the seat 100, and the sensor 2 and the motion sickness detection integrated module 3 are both arranged on the seat cover 1. Compared with the sensor 2 and the motion sickness detection integrated module 3 being arranged on the seat 100, there is no need to disassemble the seat 100, which facilitates the replacement and maintenance of the sensor 2 and the motion sickness detection integrated module 3, and the replacement and maintenance costs are low.

[0067] Furthermore, the motion sickness sensing device 10 of the present invention only uses the sensor 2 , which has lower hardware cost, integration complexity, computing consumption and power consumption than using multiple sensors, thereby further reducing the cost of the motion sickness sensing device 10 .

[0068] The motion sickness sensing device 10 of the present invention is used on a seat 100 of a vehicle, but the present invention is not limited thereto. The motion sickness sensing device 10 may also be used on a seat 100 of a ship or a seat 100 of an airplane, etc.

[0069] According to the motion sickness sensing device 10 of the embodiment of the present invention, the sensor 2 and the motion sickness detection integrated module 3 are arranged on the seat cover 1, the motion sickness detection integrated module 3 is connected to the sensor 2, and the motion sickness detection integrated module 3 is configured to receive the sensing signal of the sensor 2 and determine the user's physical sign information according to the sensing signal, and determine whether the user is in a motion sickness state and / or the degree of motion sickness according to the user's physical sign information, and send it to the terminal device. The motion sickness detection integrated module 3 integrates the physical sign signal detection function, the sensing signal processing function and the information transmission function, thereby, there is no need to set additional components at other positions to realize the above functions, thereby improving the integration and reducing the cost.

[0070] In some embodiments of the present invention, the physical sign information includes at least one of the respiratory rate, heart rate, power spectral density of low-frequency signal of heart rate variability, and power spectral density of high-frequency signal of heart rate variability. For example, in the present invention, the physical sign information includes the respiratory rate, heart rate, power spectral density of low-frequency signal of heart rate variability, and power spectral density of high-frequency signal of heart rate variability. However, the present invention is not limited to this, and the physical sign information may also include one or more of the respiratory rate, heart rate, heart rate variability time domain signal and frequency domain signal.

[0071] It should be noted that, for example, taking sensor 2 as a pressure sensor, when the user breathes, the user's chest cavity will expand / contract accordingly, thereby causing a pressure change on sensor 2. Sensor 2 converts the mechanical deformation into an electrical signal, which can then be reprocessed to infer the user's breathing rate.

[0072] For another example, taking sensor 2 as a pressure sensor, the minute changes in body motion produced by the heart during contraction and relaxation are called cardiac impact signals. The cardiac impact signals reflect the mechanical motion state of the heart. By detecting the pressure changes caused by the minute body motions of the user caused by the heartbeat, the cardiac impact signals can be obtained, and then the vital sign signal parameters such as heart rate and heart rate variability can be calculated.

[0073] Among them, during the occurrence of motion sickness, the human heart rate and respiratory rate will increase to a certain extent. The high-frequency signal (0.15-0.4Hz) and low-frequency signal (0.05-0.15Hz) in the heart rate variability characterize the regulatory effect of the autonomic nervous system when motion sickness occurs. The high-frequency signal reflects the function of the parasympathetic nervous system, and the low-frequency signal reflects the function of the sympathetic nervous system. After the occurrence of motion sickness, the sympathetic nerve activity is generally enhanced and the parasympathetic nerve activity is weakened. Therefore, the power spectral density of the low-frequency signal in the heart rate variability shows an increasing trend, and the power spectral density of the high-frequency signal in the heart rate variability shows a decreasing trend. Therefore, the changes in the power spectral density of the respiratory rate, heart rate, low-frequency signal of heart rate variability, and the power spectral density of the high-frequency signal of heart rate variability can be used as a basis for judging the occurrence of motion sickness.

[0074] In the prior art, the occurrence of motion sickness is determined by detecting changes in heart rate and respiratory rate. However, in the present invention, in addition to detecting changes in heart rate and respiratory rate, a spectrum analysis algorithm is additionally used to compare the heart rate variability of the occupant with information related to the sympathetic nerves and parasympathetic nerves (power spectrum density of low-frequency signals of heart rate variability and changes in power spectrum density of high-frequency signals of heart rate variability). This is more accurate than using only heart rate and respiratory rate as the basis for determining the occurrence of motion sickness.

[0075] For example, the motion sickness detection integrated module 3 processes the received sensor signals, obtains the breathing signal in the 0.1-0.5Hz band and the heartbeat signal in the 0.5-30Hz band through digital filtering, and then obtains the heart rate value and the breathing rate value through peak monitoring, interval sequence extraction and other algorithms. Then, the heartbeat signal is Fourier transformed to obtain the spectrum information, and the high-frequency signal of the heart rate variability of 0.15-0.4Hz is separated from the low-frequency signal of the heart rate variability of 0.05-0.15Hz, and then the power spectrum density of the high-frequency signal of the heart rate variability and the low-frequency signal of the heart rate variability are calculated respectively.

[0076] In some embodiments of the present invention, the motion sickness detection integrated module 3 includes: a motion sickness detection algorithm module and a wireless transmission module. The motion sickness detection algorithm module is connected to the sensor 2, and is used to receive the sensing signal of the sensor 2 and determine the user's physical sign information based on the sensing signal, and determine whether the user is in a motion sickness state and / or the degree of the motion sickness state based on the user's physical sign information; the wireless transmission module is connected to the motion sickness detection algorithm module, and is used to wirelessly send the user's physical sign information to the terminal device. The motion sickness detection algorithm module and the wireless transmission module are integrated into one.

[0077] It can be understood that the motion sickness detection algorithm module includes a circuit board and a control chip, the circuit board has a signal circuit, the signal circuit is connected to the wireless transmission module, and the control chip is arranged on the circuit board, and the control chip is used to process the sensing signal of the sensor 2 and control the on and off of the signal circuit. Thus, the motion sickness detection integrated module 3 can receive the sensing signal of the sensor 2 and determine the user's physical sign information according to the sensing signal, and determine whether the user is in a motion sickness state and / or the degree of motion sickness according to the user's physical sign information.

[0078] The setting of the wireless transmission module can enable the motion sickness detection integrated module 3 to wirelessly send the user's physical sign information to the terminal device, and the setting of the wireless transmission module reduces the line setting between the motion sickness detection integrated module 3 and the terminal device, saving line costs.

[0079] Furthermore, when the motion sickness detection algorithm module determines that the user is in a motion sickness state and / or the degree of motion sickness attack according to the user's physical sign information, it controls the signal circuit leading to the wireless transmission module to be connected, so that the wireless transmission module can wirelessly send the user's physical sign information to the terminal device. When the motion sickness detection algorithm module determines that the user is not in a motion sickness attack according to the user's physical sign information, it controls the signal circuit leading to the wireless transmission module to be disconnected, so that the wireless transmission module is in a non-working state, saving energy consumption.

[0080] It should be noted that the control chip may be an ST 32-bit MCU (Microcontroller Unit) chip.

[0081] In some embodiments of the present invention, the wireless transmission module is a WIFI module or a Bluetooth module, thereby realizing a wireless signal connection between the motion sickness detection integrated module 3 and the terminal device.

[0082] In some embodiments of the present invention, Figure 1 and Figure 2As shown, the motion sickness detection integrated module 3 is arranged inside or outside the seat cover 1. It is understandable that when the motion sickness detection integrated module 3 is arranged inside the seat cover 1, the interference of the external environment on the motion sickness detection integrated module 3 can be reduced, so that the detection result is more accurate. When the motion sickness detection integrated module 3 is arranged outside the seat cover 1, the replacement and maintenance of the motion sickness detection integrated module 3 can be facilitated.

[0083] For example, Figure 1 and Figure 2 In the example shown, the motion sickness detection integrated module 3 is disposed outside the seat cover 1 , but the present invention is not limited thereto, and the motion sickness detection integrated module 3 may also be disposed inside the seat cover 1 .

[0084] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, when the motion sickness detection integrated module 3 is disposed outside the seat cover 1, the motion sickness detection integrated module 3 is disposed at both side edges in the width direction of the seat cover 1. Thus, the contact between the user and the motion sickness detection integrated module 3 can be reduced, thereby reducing the pressure damage to the motion sickness detection integrated module 3 when the user sits on the seat 100, thereby increasing the service life of the motion sickness detection integrated module 3.

[0085] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the sensor 2 is arranged inside the seat cover 1. Thus, the interference of the external environment on the sensor 2 is reduced, so that the detection result of the sensor 2 is more accurate.

[0086] In some embodiments of the present invention, the seat cover 1 includes multiple layers of seat covers along the thickness direction of the seat cover 1 , and the sensor 2 is disposed between two adjacent layers of the seat covers, thereby facilitating installation and removal of the sensor 2 for maintenance.

[0087] In some embodiments of the present invention, the seat cover is a cloth layer, a fabric layer, a linen layer, a leather layer, a plush layer, an ice silk layer or a polyester layer, and the materials of the multiple seat covers are the same or different, so as to facilitate the personalized selection of users.

[0088] In some embodiments of the present invention, the sensor 2 is bonded to the seat cover 1 or sewn to the seat cover 1. Thus, the connection reliability between the sensor 2 and the seat cover 1 is improved, and different connection methods can meet the needs of different scenarios, thereby improving applicability.

[0089] In some embodiments of the present invention, Figure 1As shown, the seat cover 1 includes a cushion cover 11 and a backrest cover 12, the cushion cover 11 and the backrest cover 12 are separate parts or integrated parts, and at least one of the cushion cover 11 and the backrest cover 12 is provided with a sensor 2; for example, in the present invention, both the cushion cover 11 and the backrest cover 12 are provided with a sensor 2, but the present invention is not limited to this, and the sensor 2 may be provided only in the cushion cover 11 or in the backrest cover 12.

[0090] It is understandable that the cushion cover 11 is provided with a sensor 2, taking the sensor 2 as a pressure sensor as an example, so that the tiny body movement changes generated by the user's heart during contraction and relaxation, that is, the cardiac impact signal, can be detected. The cardiac impact signal reflects the mechanical movement state of the heart, and the pressure changes caused by the tiny body movement of the user caused by the heartbeat can be detected to obtain the cardiac impact signal, and then calculate the vital sign signal parameters such as heart rate and heart rate variability. The motion sickness detection integrated module 3 can detect the changes in heart rate, heart rate variability low-frequency signal, and heart rate variability high-frequency signal, so as to facilitate the judgment of whether the user is in a motion sickness state.

[0091] The backrest cover 12 is provided with a sensor 2, so that the sensor 2 can detect the heartbeat signal and the pressure change caused by breathing, and then calculate the vital sign signal parameters such as heart rate, respiratory rate and heart rate variability. The motion sickness detection integrated module 3 can detect the changes in the respiratory rate, heart rate, heart rate variability low frequency signal power spectrum density, and heart rate variability high frequency signal power spectrum density, so as to facilitate the judgment of whether the user is in a motion sickness state.

[0092] Furthermore, the motion sickness detection integrated module 3 is simultaneously connected to the sensors 2 in the seat cushion cover 11 and the backrest cover 12, and the sensor signals of the sensors 2 in the seat cushion cover 11 and the backrest cover 12 are comprehensively processed, so that the judgment and detection results are more accurate. In addition, the motion sickness detection integrated module 3 is simultaneously connected to the sensors 2 in the seat cushion cover 11 and the backrest cover 12, which reduces the number of motion sickness detection integrated modules 3 and reduces the cost compared to two motion sickness detection integrated modules 3, which are respectively connected to the sensors 2 in the seat cushion cover 11 and the backrest cover 12.

[0093] or, as Figure 2 As shown, the seat cover 1 is a seat cushion cover or a backrest cover 12 , thereby reducing the cost of the seat cover 1 .

[0094] In some embodiments of the present invention, Figure 1 and Figure 2As shown, a sensor 2 is provided in the seat cushion cover 11, and the seat cushion cover 11 has a sciatic area and a thigh area, and the sensor 2 is provided in the sciatic area and / or the thigh area; it can be understood that after the user sits down, the sciatic area and the thigh area of ​​the seat cushion cover are subjected to the greatest pressure, and the sensor 2 is provided in the sciatic area and / or the thigh area, so that it is convenient for the sensor 2 to detect a stronger cardiac impact signal, thereby improving the detection accuracy.

[0095] In some embodiments of the present invention, Figure 1 As shown, a sensor 2 is provided in the backrest cover 12, and the backrest cover 12 has a chest area corresponding to the chest cavity of the user, and the sensor 2 is provided in the chest area. It can be understood that when the user breathes, the chest cavity will deform, and the heart is also located in the chest cavity of the user. Therefore, the sensor 2 is provided in the chest area, which can facilitate the sensor 2 to detect the pressure changes caused by the heartbeat and the pressure changes caused by breathing, thereby improving the detection accuracy.

[0096] In some embodiments of the present invention, at least one of the two sides in the width direction of the seat cover 1 has an airbag outlet; therefore, when the seat cover 1 is used for a seat 100 of a vehicle, airplane, ship or other transportation vehicle, the user's driving or riding safety can be improved.

[0097] In some embodiments of the present invention, the seat cover 1 is of a full-cover type or a half-cover type, thereby enriching the types of the seat cover 1 so that the seat cover 1 can adapt to different application scenarios, thereby improving the applicability of the seat cover 1.

[0098] In some embodiments of the present invention, a Velcro is provided on the seat cover 1. It is understandable that the Velcro can be used to connect with the seat 100, thereby improving the reliability of the connection with the seat 100. At the same time, the seat cover 1 and the seat 100 are connected by the Velcro, which facilitates the removal and installation of the seat cover 1.

[0099] In some embodiments of the present invention, the sensor 2 is one or more; thereby, the reliability and accuracy of the detection can be improved. Figure 1 In the example shown, there are two sensors 2, for example Figure 2 In the example shown, there is one sensor 2 , but the present invention is not limited thereto, and there may be more sensors 2 , for example, 3, 4, 5, 6 or 7 sensors.

[0100] In some embodiments of the present invention, the sensor 2 is a flexible sensor; it is understandable that the flexible sensor enables the sensor 2 to have a certain deformation and bending ability, so that it can withstand multiple extrusions and bending, and improve the service life of the sensor 2. For example, the sensor 2 can be a flexible piezoresistive film, a flexible composite piezoelectric film, a PVDF (polyvinylidenedifluoride) piezoelectric film, an EMFi (ElectroMechanical Film) piezoelectric film or a flexible piezoelectric cable.

[0101] In some embodiments of the present invention, the length of the sensor 2 is greater than or equal to 2 cm; for example, 2 cm, 4 cm, 5 cm or 6 cm, thereby making the sensing area of ​​the sensor 2 sufficient and improving the detection accuracy.

[0102] In some embodiments of the present invention, the width of the sensor 2 is greater than or equal to 1 cm; for example, 1 cm, 4 cm, 5 cm or 6 cm, thereby making the sensing area of ​​the sensor 2 sufficient and improving the detection accuracy.

[0103] In some embodiments of the present invention, the thickness of the sensor 2 is less than or equal to 5 mm; for example, 1 mm, 2 mm, 3 mm or 5 mm, thereby ensuring that the sensor 2 has a certain deformation and bending ability, so that it can withstand multiple extrusions and bending, thereby increasing the service life of the sensor 2.

[0104] In some embodiments of the present invention, the sensor 2 is in the shape of a strip, a wave, a circle, a rectangle, a triangle, or a combination of at least two of the strip, the wave, the circle, the rectangle, and the triangle, so that the sensor 2 can adapt to different application scenarios, thereby improving the applicability of the sensor 2.

[0105] For example, Figure 1 In the example shown, the sensor 2 is rectangular, for example Figure 2 In the example shown, the sensor 2 is S-shaped, but the present invention is not limited thereto, and the sensor 2 may also be in other shapes.

[0106] In some embodiments of the present invention, the motion sickness sensing device 10 also includes a power supply device, which is arranged on the seat cover 1 and is used to supply power to the motion sickness detection integrated module 3 and the sensor 2; it can be understood that the power supply device can supply power to a vehicle power supply, a mobile power supply or other external power supply, etc., thereby realizing the operation of the motion sickness detection integrated module 3 and the sensor 2.

[0107] Reference below Figure 1 and Figure 2 A seat 100 according to an embodiment of the present invention is described.

[0108] like Figure 1 and Figure 2 As shown, the seat 100 according to the embodiment of the present invention includes the motion sickness sensing device 10 mentioned above.

[0109] Specifically, refer to Figure 1 and Figure 2 The seat 100 also includes a seat body 20 , and the motion sickness sensing device 10 is disposed on the seat body 20 .

[0110] According to the seat 100 of the embodiment of the present invention, by providing the above-mentioned motion sickness sensing device 10, the sensor 2 and the motion sickness detection integrated module 3 are provided on the seat cover 1, the motion sickness detection integrated module 3 is connected to the sensor 2, and the motion sickness detection integrated module 3 is configured to receive the sensing signal of the sensor 2 and determine the user's physical sign information according to the sensing signal, and determine whether the user is in a motion sickness state and / or the degree of motion sickness according to the user's physical sign information, and send it to the terminal device. The motion sickness detection integrated module 3 integrates the physical sign signal detection function, the sensing signal processing function and the information transmission function, thereby, there is no need to set additional components at other positions to realize the above-mentioned functions, thereby improving the integration and reducing the cost.

[0111] A vehicle according to an embodiment of the present invention will be described below.

[0112] The vehicle according to the embodiment of the present invention includes the seat 100 described above.

[0113] According to the vehicle of the embodiment of the present invention, the seat 100 and the motion sickness sensing device 10 are provided, the sensor 2 and the motion sickness detection integrated module 3 are provided on the seat cover 1, the motion sickness detection integrated module 3 is connected to the sensor 2, and the motion sickness detection integrated module 3 is configured to receive the sensing signal of the sensor 2 and determine the user's physical sign information according to the sensing signal, and determine whether the user is in a motion sickness state and / or the degree of motion sickness according to the user's physical sign information, and send it to the terminal device. The motion sickness detection integrated module 3 integrates the physical sign signal detection function, the sensing signal processing function and the information transmission function, thereby, there is no need to set additional components at other positions to realize the above functions, thereby improving the integration and reducing the cost.

[0114] Reference below Figure 3 A motion sickness detection method according to an embodiment of the present invention is described.

[0115] like Figure 3 As shown, the motion sickness detection method according to the embodiment of the present invention is detected by the motion sickness sensing device 10 mentioned above; the motion sickness detection method includes:

[0116] Determine that the user sits on the seat cover 1 ; when the user sits on the seat cover 1 , the sensor 2 can detect the corresponding pressure, thereby determining that the user sits on the seat cover 1 .

[0117] The pressure value of the sensor 2 is obtained; when it is determined that the user sits on the seat cover 1, the sensor 2 can detect the pressure changes caused by the user's breathing and / or heartbeat. When the seat cover 1 includes a backrest cover 12, the sensor 2 can detect the pressure changes caused by the user's breathing and heartbeat; when the seat cover 1 includes a cushion cover, the sensor 2 can detect the pressure changes caused by the user's heartbeat.

[0118] The user's physical sign information is determined according to the pressure value of the sensor 2; the motion sickness detection integrated module 3 receives the sensing signal from the sensor 2, processes it, and converts the sensing signal into the user's physical sign information.

[0119] Determine that the user is in a state of motion sickness; the motion sickness detection integrated module 3 can determine that the user is in a state of motion sickness based on the user's physical sign information.

[0120] A signal indicating that the user is in a motion sickness state is transmitted to the terminal device; when the motion sickness detection integrated module 3 determines that the user is in a motion sickness state, the motion sickness state signal can be transmitted to the terminal device, so that the terminal device or the user adjusts the surrounding environment to alleviate the user's motion sickness state.

[0121] According to the motion sickness detection method of the embodiment of the present invention, the motion sickness sensing device 10 is used for detection, the sensor 2 and the motion sickness detection integrated module 3 are arranged on the seat cover 1, the motion sickness detection integrated module 3 is connected to the sensor 2, and the motion sickness detection integrated module 3 is configured to receive the sensing signal of the sensor 2 and determine the user's physical sign information according to the sensing signal, and determine whether the user is in a motion sickness state and / or the degree of motion sickness according to the user's physical sign information, and send it to the terminal device. The motion sickness detection integrated module 3 integrates the physical sign signal detection function, the sensing signal processing function and the information transmission function, thereby, there is no need to set additional components at other positions to realize the above functions, thereby improving the integration and reducing the cost.

[0122] In some embodiments of the present invention, Figure 3 As shown, determining that the user is in a motion sickness state includes:

[0123] The user's physical sign information is detected within a preset time, and the user's physical sign information meets the motion sickness onset condition at least twice in a row within the preset time. It can be understood that by the user's physical sign information meeting the motion sickness onset condition at least twice in a row within the preset time, it is possible to avoid occasional judgment and detection errors of the user's physical sign information, thereby improving the accuracy of the detection and judgment of the motion sickness sensing device 10.

[0124] Further, the preset time is greater than or equal to 30 seconds, for example, the preset time may be 30 seconds, 50 seconds, 60 seconds or 70 seconds, etc. The preset time is greater than or equal to 30 seconds, so that there is a sufficient time period to detect the user's physical sign information, thereby avoiding misjudgment of the motion sickness sensing device 10 caused by a short-term change in the physical sign information, thereby improving the accuracy of detection and judgment of the motion sickness sensing device 10.

[0125] Furthermore, the motion sickness detection integrated module 3 updates the motion sickness signal every preset time. When the motion sickness detection integrated module 3 detects that the user does not meet the motion sickness conditions, the motion sickness detection integrated module 3 suspends sending the motion sickness signal to the terminal device, thereby reducing power consumption.

[0126] In some embodiments of the present invention, the physical sign information includes respiratory rate, heart rate, heart rate variability low frequency signal power spectral density and heart rate variability high frequency signal power spectral density, and the motion sickness onset condition includes satisfying at least three of the following conditions:

[0127] Detecting that the heart rate continues to increase within the first preset range;

[0128] detecting that the respiratory rate continues to increase within a second preset range;

[0129] detecting that the power spectrum density of the low-frequency signal of heart rate variability continues to increase within a third preset range;

[0130] It is detected that the power spectrum density of the heart rate variability high-frequency signal continues to decrease within a fourth preset range.

[0131] It can be understood that by judging at least three physical signs as the conditions for motion sickness onset, the misjudgment of the motion sickness sensing device 10 can be further reduced, thereby further improving the accuracy of detection and judgment of the motion sickness sensing device 10.

[0132] In some embodiments of the present invention, the first preset range is 60-100 beats / minute; it is understandable that when the heart rate continues to increase in the range of 60-100 beats / minute, it is more consistent with the occurrence of motion sickness, thereby improving the accuracy of the motion sickness sensing device 10 in judging the occurrence of motion sickness in the user.

[0133] In some embodiments of the present invention, and / or, the second preset range is 16-20 times / minute; it is understandable that when the breathing rate continues to increase in the range of 16-20 times / minute, it is more consistent with the occurrence of motion sickness, thereby improving the accuracy of the motion sickness sensing device 10 in judging the occurrence of motion sickness in the user.

[0134] In some embodiments of the present invention, and / or, the third preset range is 40-80nu; it can be understood that when the power spectral density of the heart rate variability low-frequency signal continues to increase in the range of 40-80nu, it is more consistent with the occurrence of motion sickness, thereby improving the accuracy of the motion sickness sensing device 10 in judging the occurrence of motion sickness in the user.

[0135] In some embodiments of the present invention, and / or, the fourth preset range is 10-50nu; it can be understood that when the power spectral density of the high-frequency signal of heart rate variability continues to decrease in the range of 10-50nu, it is more consistent with the occurrence of motion sickness, thereby improving the accuracy of the motion sickness sensing device 10 in judging the occurrence of motion sickness in the user.

[0136] In some embodiments of the present invention, the signal indicating that the user is in a motion sickness state is transmitted to the terminal device by wireless means, thereby reducing the line settings between the motion sickness detection integrated module 3 and the terminal device and saving line costs.

[0137] In some embodiments of the present invention, the terminal device is a mobile terminal or a vehicle-mounted terminal. The mobile terminal is a mobile phone, a tablet or a computer, and the vehicle-mounted terminal can be a central control display screen. Thus, it is convenient for the terminal device or the user to actively adjust the surrounding environment through the terminal device, thereby alleviating the user's motion sickness.

[0138] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0139] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A motion sickness sensing device, characterized in that: include: Seat covers; a sensor, the sensor being disposed on the seat cover; A motion sickness detection integrated module, wherein the motion sickness detection integrated module is disposed on the seat cover and connected to the sensor, and the motion sickness detection integrated module is configured to receive a sensing signal from the sensor and determine a user's physical sign information based on the sensing signal, and determine whether the user is in a motion sickness state and / or the degree of the motion sickness state based on the user's physical sign information, and send the information to a terminal device.

2. The motion sickness sensing device according to claim 1, characterized in that: The physical sign information includes at least one of a respiratory rate, a heart rate, a power spectrum density of a low-frequency signal of heart rate variability, and a power spectrum density of a high-frequency signal of heart rate variability.

3. The motion sickness sensing device according to claim 1, characterized in that: The motion sickness detection integrated module comprises: a motion sickness detection algorithm module, the motion sickness detection algorithm module being connected to the sensor, and being used to receive a sensing signal from the sensor and determine the user's physical sign information according to the sensing signal, and to determine whether the user is in a motion sickness state and / or the degree of the motion sickness state according to the user's physical sign information; A wireless transmission module, which is connected to the motion sickness detection algorithm module and is used to wirelessly send the user's physical sign information to the terminal device. The motion sickness detection algorithm module and the wireless transmission module are integrated into one.

4. The motion sickness sensing device according to claim 3, characterized in that: The wireless transmission module is a WIFI module or a Bluetooth module.

5. The motion sickness sensing device according to claim 1, characterized in that: The motion sickness detection integrated module is arranged inside or outside the seat cover.

6. The motion sickness sensing device according to claim 5, characterized in that: When the motion sickness detection integrated module is arranged outside the seat cover, the motion sickness detection integrated module is arranged at both side edges of the seat cover in the width direction.

7. The motion sickness sensing device according to claim 1, characterized in that: The sensor is arranged inside the seat cover.

8. The motion sickness sensing device according to claim 1, characterized in that: Along the thickness direction of the seat cover, the seat cover includes multiple layers of seat layer covers, and the sensor is arranged between two adjacent layers of the seat layer covers.

9. The motion sickness sensing device according to claim 8, characterized in that: The seat layer cover is a cloth layer, a fabric layer, a linen layer, a leather layer, a plush layer, an ice silk layer or a polyester layer, and the materials of the multiple layers of the seat layer cover are the same or different.

10. The motion sickness sensing device according to claim 1, characterized in that: The sensor is bonded to the seat cover or sewn to the seat cover.

11. The motion sickness sensing device according to claim 1, characterized in that: The seat cover comprises a cushion cover and a backrest cover, wherein the cushion cover and the backrest cover are separate parts or integrated parts, and at least one of the cushion cover and the backrest cover is provided with the sensor; Or, the seat cover is a seat cushion cover or a backrest cover.

12. The motion sickness sensing device according to claim 11, characterized in that: The sensor is arranged in the seat cushion cover, the seat cushion cover has a seat bone area and a thigh area, and the sensor is arranged in the seat bone area and / or the thigh area; And / or, the sensor is arranged in the backrest cover, the backrest cover has a chest area corresponding to the user's chest cavity, and the sensor is arranged in the chest area.

13. The motion sickness sensing device according to claim 1, characterized in that: At least one of the two sides in the width direction of the seat cover has an airbag outlet; And / or, the seat cover is a full-cover type or a half-cover type; And / or, the seat cover is provided with Velcro for connection.

14. The motion sickness sensing device according to claim 1, characterized in that: The sensor is one or more; And / or, the sensor is a flexible sensor; And / or, the length of the sensor is greater than or equal to 2 cm; And / or, the width of the sensor is greater than or equal to 1 cm; And / or, the thickness of the sensor is less than or equal to 5 mm; And / or, the sensor is in the shape of an elongated strip, a wavy shape, a circle, a rectangle, a triangle, or a combination of at least two of the elongated strip, the wavy shape, the circle, the rectangle, and the triangle.

15. The motion sickness sensing device according to claim 1, characterized in that: It also includes a power supply device, which is arranged on the seat cover and is used to supply power to the motion sickness detection integrated module and / or sensor.

16. A seat, characterized in that: Comprising a motion sickness sensing device according to any one of claims 1-15.

17. A vehicle, characterized in that: Comprising a seat according to claim 16.

18. A method for detecting motion sickness, characterized in that: The motion sickness detection method is detected by a motion sickness sensing device according to any one of claims 1 to 15, comprising: determining that a user is seated on the seat cover; Obtaining a pressure value of the sensor; Determining the user's physical sign information according to the pressure value of the sensor; Determine that the user is experiencing motion sickness; The signal that the user is in a motion sickness state is transmitted to the terminal device.

19. The motion sickness detection method according to claim 18, characterized in that: Determining that the user is in a motion sickness state includes: The user's physical sign information is detected within a preset time, and the user's physical sign information meets the motion sickness condition at least twice in a row within the preset time.

20. The motion sickness detection method according to claim 19, characterized in that: The physical sign information includes respiratory rate, heart rate, heart rate variability low-frequency signal power spectral density and heart rate variability high-frequency signal power spectral density, and the motion sickness onset condition includes satisfying at least three of the following conditions: Detecting that the heart rate continues to increase within the first preset range; detecting that the respiratory rate continues to increase within a second preset range; detecting that the power spectrum density of the low-frequency signal of heart rate variability continues to increase within a third preset range; It is detected that the power spectrum density of the heart rate variability high-frequency signal continues to decrease within a fourth preset range.

21. The motion sickness detection method according to claim 20, characterized in that: The first preset range is 60-100 times / minute; And / or, the second preset range is 16-20 times / minute; And / or, the third preset range is 40-80nu; And / or, the fourth preset range is 10-50nu.

22. The motion sickness detection method according to claim 18, characterized in that: The signal that the user is in a motion sickness state is transmitted to the terminal device wirelessly.

23. The motion sickness detection method according to claim 18, characterized in that: The terminal device is a mobile terminal or a vehicle-mounted terminal.

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