Passenger fatigue detection method and device, storage medium and equipment

Abstract

The invention relates to a passenger fatigue detection method and device, a storage medium and equipment. The passenger fatigue detection method comprises the following steps: acquiring a pressure measurement value in a preset area of a seat assembly; comparing the change value of the total value of the pressure measurement values with a preset change limit value to judge whether the passenger acts or not; action frequency information and action time information of the passenger are obtained based on the judgment result of whether the passenger acts or not; and judging whether the passenger is tired based on the action frequency information and the action time information of the passenger to obtain a passenger fatigue detection result. The method can effectively detect the fatigue state of the passenger, and is simple, high in feasibility and convenient to popularize and use.

Description

Technical Field

[0001] The present disclosure relates to the field of detection technology, and in particular, to an occupant fatigue detection method, device, storage medium and equipment. Background Art

[0002] With the rapid development of modern transportation, cars, trains, airplanes and other transportation tools have become an indispensable part of people's daily life and work. However, long-term driving or riding in these transportation tools often causes passengers to become fatigued, affecting their physical health and user experience. In addition, with the continuous improvement of living standards, people have put forward higher requirements for the intelligence and comfort of cars. Therefore, researching methods and products that can effectively detect the fatigue state of passengers is of great significance to protecting the physical health of passengers and meeting relevant market needs. Summary of the invention

[0003] The purpose of the present invention is to provide a new occupant fatigue detection method, device, storage medium and equipment, which can effectively detect the fatigue state of the occupant. The method is simple, highly feasible and easy to promote and use.

[0004] According to a first aspect of the present invention, a method for detecting occupant fatigue is proposed, the method comprising: obtaining pressure measurement values ​​within a preset area of ​​a seat assembly; comparing a change in a total value of the pressure measurement values ​​with a preset change limit value to determine whether the occupant is moving; obtaining the occupant's movement frequency information and movement time information based on a result of determining whether the occupant is moving; determining whether the occupant is fatigued based on the occupant's movement frequency information and movement time information to obtain an occupant fatigue detection result.

[0005] The first aspect described above may include any of the following preferred features alone or in combination.

[0006] Preferably, judging whether the occupant is fatigued based on the occupant's action number information and action time information includes: obtaining the occupant's action number within a preset time period based on the occupant's action number information and action time information; when the occupant's action number within the preset time period is greater than a preset number limit value, judging that the occupant is in a fatigued state.

[0007] Preferably, the method of judging whether the occupant is fatigued based on the occupant's action number information and action time information includes: obtaining the time duration taken for the occupant's action number to reach a preset time limit value based on the occupant's action number information and the time information; when the time duration taken for the occupant's action number to reach the preset time limit value is less than the preset time limit value, judging that the occupant is in a fatigued state.

[0008] Preferably, the method further includes: detecting whether there is an external disturbance by means of an external fluctuation detection means; and judging whether the occupant has taken action based on the detection result of the external disturbance and the comparison result of the change value of the total value of the pressure measurement value with a preset change limit value.

[0009] Preferably, the seat assembly includes a plurality of the preset areas, and the method further includes: performing area detection on the plurality of the preset areas to obtain occupant fatigue detection results of each preset area; and adjusting the seat assembly based on the occupant fatigue detection results of each preset area.

[0010] Preferably, the plurality of preset areas include a backrest area and a seat cushion area, and at least one pressure measuring unit is arranged in each of the backrest area and the seat cushion area.

[0011] Preferably, the adjustment of the seat component includes massage adjustment, angle adjustment, vibration adjustment and / or temperature adjustment.

[0012] According to a second aspect of the present invention, a seat assembly is proposed, comprising: a seat body; at least one sensor, which is arranged on the seat body; a controller, which is communicatively connected to the sensor and is programmed to obtain an occupant fatigue detection result according to the following method, the method comprising: obtaining a pressure measurement value in a preset area of ​​the seat assembly through the sensor; comparing a change value of a total value of the pressure measurement value with a preset change limit value to determine whether the occupant is moving; obtaining the occupant's movement frequency information and movement time information based on the judgment result of whether the occupant is moving; and determining whether the occupant is fatigued based on the occupant's movement frequency information and movement time information to obtain an occupant fatigue detection result.

[0013] According to a third aspect of the present invention, an occupant fatigue detection device is proposed, comprising: a pressure measurement value acquisition module, configured to acquire pressure measurement values ​​within a preset area of ​​a seat assembly; a first judgment module, configured to compare a change value of a total value of the pressure measurement values ​​with a preset change limit value to determine whether the occupant is moving; an action information acquisition module, configured to acquire action number information and action time information of the occupant based on a result of a judgment of whether the occupant is moving; and a second judgment module, configured to determine whether the occupant is fatigued based on the action number information and action time information of the occupant to obtain an occupant fatigue detection result.

[0014] According to a fourth aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium has computer-executable instructions stored thereon, wherein the computer-executable instructions are used to execute the occupant fatigue detection method.

[0015] According to a fifth aspect of the present invention, a computing device is proposed, comprising: at least one processor; and a memory for storing computer executable instructions, which, when the computer executable instructions are executed, enable the at least one processor to execute the occupant fatigue detection method. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features and advantages of the present invention will be better understood from the following detailed description of preferred embodiments in conjunction with the accompanying drawings, in which the same reference numerals represent the same or similar components.

[0017] Figure 1 A schematic flow chart of a method for detecting occupant fatigue according to an embodiment of the present invention is shown.

[0018] Figure 2a A structural schematic diagram of a seat assembly according to an embodiment of the present invention is shown.

[0019] Figure 2b A structural schematic diagram of another seat assembly according to an embodiment of the present invention is shown.

[0020] Figure 3a A schematic diagram of a pressure-fixed-frequency-massage-single-speed active adjustment method for a seat assembly according to an embodiment of the present invention is shown.

[0021] Figure 3b A schematic diagram of a pressure-fixed frequency-massage-multi-speed active adjustment method for a seat assembly according to an embodiment of the present invention is shown.

[0022] Figure 3c A schematic diagram of a pressure-order-angle-single-speed active adjustment method for a seat assembly according to an embodiment of the present invention is shown.

[0023] Figure 3d A schematic diagram of a pressure-order-angle-multi-level active adjustment method for a seat assembly according to an embodiment of the present invention is shown.

[0024] Figure 3e A schematic diagram of an air pressure-fixed frequency-massage-single-speed active adjustment method of a seat assembly according to an embodiment of the present invention is shown.

[0025] Figure 3f A schematic diagram of an air pressure-fixed frequency-massage-multi-speed active adjustment method of a seat assembly according to an embodiment of the present invention is shown.

[0026] Figure 3g A schematic diagram of an air pressure-fixed order-angle-single-speed active adjustment method for a seat assembly according to an embodiment of the present invention is shown.

[0027] Figure 3hA schematic diagram of an air pressure-fixed order-angle-multi-level active adjustment method for a seat assembly according to an embodiment of the present invention is shown.

[0028] Figure 4a A schematic diagram of a pressure-timing-massage-single-speed active adjustment method for a seat assembly according to another embodiment of the present invention is shown.

[0029] Figure 4b A schematic diagram of a pressure-timing-massage-multi-speed active adjustment method for a seat assembly according to an embodiment of the present invention is shown.

[0030] Figure 4c A schematic diagram of a pressure-timing-angle-single-speed active adjustment method for a seat assembly according to an embodiment of the present invention is shown.

[0031] Figure 4d A schematic diagram of a pressure-timing-angle-multi-speed active adjustment method for a seat assembly according to an embodiment of the present invention is shown.

[0032] Figure 4e A schematic diagram of an air pressure-timing-massage-single-speed active adjustment method for a seat assembly according to an embodiment of the present invention is shown.

[0033] Figure 4f A schematic diagram of an air pressure-timing-massage-multi-speed active adjustment method of a seat assembly according to an embodiment of the present invention is shown.

[0034] Figure 4g A schematic diagram of an air pressure-timing-angle-single-gear active adjustment method for a seat assembly according to an embodiment of the present invention is shown.

[0035] Figure 4h A schematic diagram of an air pressure-timing-angle-multi-speed active adjustment method for a seat assembly according to an embodiment of the present invention is shown.

[0036] Figure 5 An exemplary block diagram of an occupant fatigue detection device according to an embodiment of the present invention is shown.

[0037] Figure 6 An exemplary block diagram of a computing device according to an embodiment of the present invention is shown.

[0038] Figure 7 A schematic diagram of a seat assembly according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0039] The following detailed description is merely exemplary in nature and is not intended to limit the application and use. Furthermore, the present invention is not intended to be limited by any stated or implied theory presented in the foregoing technical field, background technology, summary of the invention or the following detailed description.

[0040] As described below, some exemplary embodiments of the present disclosure provide an occupant fatigue detection method, device, storage medium and equipment, which adopt a new approach to analyze the pressure measurement values ​​collected on the seat assembly to determine whether the occupant is fatigued. The method is simple and effective and is suitable for various types of transportation and application scenarios.

[0041] refer to Figure 1 , shows a schematic flow chart of a method 100 for detecting occupant fatigue according to an embodiment of the present invention. Figure 1 As shown, the occupant fatigue detection method 100 includes the following steps 110-140:

[0042] Step 110, obtaining the pressure measurement value in the preset area of ​​the seat component. The pressure measurement value can be obtained by a pressure measuring unit arranged in the preset area of ​​the seat component. The pressure measuring unit can be a piezoresistive sensor, a piezocacapacitive sensor, a strain-type planar pressure pad and / or various types of air pressure sensors. One or more pressure measuring units can be arranged in the preset area, and the pressure measuring unit can be arranged at any position in the preset area, such as a central position or a position near the side edge. Preferably, when a plurality of pressure measuring units are arranged in the preset area, the plurality of pressure measuring units are evenly distributed in a queue.

[0043] The preset area is at least a part of the contactable area between the occupant and the seat assembly. The preset area can be a backrest area, a seat cushion area, a headrest area, a seat cushion wing area, a leg rest area or an armrest area. In some examples, the seat assembly includes multiple preset areas, such as a backrest area and a seat cushion area, wherein at least one pressure measuring unit is arranged in each area. In some examples, the fatigue detection results of the occupants in each preset area are obtained by performing regional detection on multiple preset areas; and the seat assembly is adjusted based on the fatigue detection results of the occupants in each preset area. In some examples, the adjustment of the seat assembly includes massage adjustment and / or angle adjustment. Among them, the massage adjustment includes turning on the massage system, turning off the massage system and / or adjusting the massage level. Among them, the angle adjustment includes adjusting the front and rear inclination angles, the left and right inclination angles and / or the diagonal inclination angles of the seat cushion and the backrest.

[0044] Step 120, compare the change value of the total value of the pressure measurement value with the preset change limit value to determine whether the occupant has taken action. Specifically, in some examples, when the change value of the total value of the pressure measurement value is greater than the preset change limit value, it is determined that the occupant has taken action; when the change value of the total value of the pressure measurement value is less than or equal to the preset change limit value, it is determined that the occupant has not taken action.

[0045] refer to Figure 2a , shows a schematic diagram of a seat assembly with four sensors arranged on the backrest. Figure 2b , showing a schematic diagram of a seat assembly with four sensors arranged on the seat cushion. Figure 2a and Figure 2b For example, four sensors are arranged in the contact area between the backrest or seat cushion and the occupant. When the occupant's state changes, the pressure measurement values ​​of the four sensors change from p1, p2, p3, p4 to p1', p2', p3', p4'. In this example, the change value Δp of the total value of the pressure measurement value is the absolute value of the difference between the sum of the pressure measurement values ​​in the two states, which can be expressed as follows:

[0046]

[0047] In addition, the preset change limit value is represented by C. When Δp>C, it is determined that the occupant has taken an effective action.

[0048] In some examples, judging whether the occupant has taken action further includes: detecting whether there is an external disturbance by means of external fluctuation detection; judging whether the occupant has taken action based on the detection result of the external disturbance and the comparison result of the change value of the total value of the pressure measurement value and the preset change limit value. Specifically, in some examples, when it is detected that there is an external disturbance and the change value of the total value of the pressure measurement value is greater than the preset change limit value, it is judged that the occupant has not taken action; when it is not detected that there is an external disturbance and the change value of the total value of the pressure measurement value is greater than the preset change limit value, it is judged that the occupant has taken action; when it is detected that there is an external disturbance and the change value of the total value of the pressure measurement value is less than or equal to the preset change limit value, it is judged that the occupant has not taken action; when it is not detected that there is an external disturbance and the change value of the total value of the pressure measurement value is less than or equal to the preset change limit value, it is judged that the occupant has not taken action. In some examples, the external fluctuation detection means include a body vibration sensor and / or a body camera. This example can effectively eliminate the passenger action recognition error caused by external factors by adopting the external fluctuation detection means, such as continuous turning, bumpy road conditions, etc.

[0049] Step 130, based on the result of determining whether the occupant has taken an action, obtain the occupant's action frequency information and action time information. In some examples, when it is determined that the occupant has taken an action, the occupant's action frequency is accumulated and the time of each action is recorded.

[0050] Step 140, based on the occupant's action number information and action time information, determine whether the occupant is fatigued to obtain an occupant fatigue detection result. In some examples, based on the occupant's action number information and action time information, the occupant's action number within a preset time period is obtained; when the occupant's action number within the preset time period is greater than a preset number limit value, it is determined that the occupant is in a fatigue state. In other examples, based on the occupant's action number information and time information, the duration taken for the occupant's action number to reach a preset number limit value is obtained; when the duration taken for the occupant's action number to reach a preset number limit value is less than a preset duration limit value, it is determined that the occupant is in a fatigue state.

[0051] It is worth mentioning that compared with the existing image processing technology or vital sign technology, the occupant fatigue detection method of the present invention determines whether the occupant is fatigued based on the frequency of the occupant's movements, and has the advantages of being simple, easy to implement, and low cost. In addition, in the occupant fatigue detection method, the number and deployment location of the pressure measurement units have little effect on the accuracy of the judgment result, further improving the flexibility of the relevant product design and better meeting the personalized needs of users.

[0052] Furthermore, based on the occupant fatigue detection results obtained by the occupant fatigue detection method of the aforementioned embodiment, the seat assembly may be adjusted to reduce fatigue of the occupant and provide comfortable support.

[0053] Reference Figure 3a-3h , a schematic diagram showing various methods for actively adjusting a seat assembly according to an embodiment of the present invention. Figure 3aIt is a schematic diagram of the pressure-fixed-time-massage-single-speed active adjustment method of the seat assembly, and its specific implementation method can be described as follows. First, collect the current total pressure value P1 of the pressure pad covered by the contact surface. When the total pressure value changes, the changed total pressure value is recorded as P2, and the instantaneous change value of the total pressure value ΔP=|P2-P1| is calculated. Set the total pressure value change limit value C, set the number of occupant actions N, and the initial value N=0. When the judgment condition is met: ΔP>C and there is no external disturbance, the number of occupant actions N counts +1; when the judgment condition is not met: ΔP>C and there is no external disturbance, the number of occupant actions N counts +0. The total value of the occupant action count at the current time tn is recorded as Nt, and the occupant action limit value N' is set. The moment when the total count value is Nt-N' is recorded as t, and the time limit value T1 is set. When the judgment condition tn-t<T1 is met, it is judged that the occupant is in a state of fatigue, and the seat is automatically adjusted to start massage, and reset after T2 time; when the judgment condition tn-t<T1 is not met, it is judged that the occupant is not in a state of fatigue, and tn and t are recalculated according to the above process. When the massage stops, tn and t are recalculated according to the above process. When the judgment condition tn-t<T1 is met, it is judged that the occupant is still in a state of fatigue, and the massage is repeatedly started, and the duration is set to T2; when the judgment condition tn-t<T1 is not met, it is judged that the occupant has eliminated fatigue, and the adjustment ends.

[0054] Reference Figure 3e-3h In other examples, the pressure pads in the active adjustment method can be replaced by air bags. Figure 3b and 3f In other embodiments, in the fixed-time active adjustment method, the massage adjustment can be replaced by a single-speed massage adjustment with a multi-speed massage adjustment. The different implementation steps of the multi-speed massage adjustment are as follows: after the first massage stops, tn and t are recalculated according to the above process. When the judgment condition tn-t<T1 is met, it is judged that the occupant is still in a tired state, and the massage is started by increasing the strength by one level, and the duration is set to T2; when the judgment condition tn-t<T1 is not met, it is judged that the occupant has eliminated fatigue and the adjustment is ended.

[0055] Reference Figure 3c , 3d, 3g and 3h, in some other examples, the massage adjustment in the fixed-time active adjustment method can be replaced by the angle adjustment of the seat component. Among them, the angle adjustment includes single-speed angle adjustment and multi-speed angle adjustment. In some examples, the implementation method of single-speed angle adjustment is as follows: when the judgment condition tn-t<T1 is met, it is judged that the occupant is in a state of fatigue, the seat inclination is adjusted, and reset after T2 time; when the judgment condition tn-t<T1 is not met, it is judged that the occupant is not in a state of fatigue, and tn and t are recalculated according to the above process. When the seat inclination is reset, tn and t are recalculated according to the above process. When the judgment condition tn-t<T1 is met, it is judged that the occupant is still in a state of fatigue, and the seat inclination is repeatedly adjusted, and the duration is set to T2; when the judgment condition tn-t<T1 is not met, it is judged that the occupant has eliminated fatigue and the adjustment is ended.

[0056] In some examples, the implementation method of multi-level angle adjustment is as follows: when the judgment condition tn-t<T1 is met, it is judged that the occupant is in a state of fatigue, the seat inclination is adjusted, and reset after T2 time; when the judgment condition tn-t<T1 is not met, it is judged that the occupant is not in a state of fatigue, and tn and t are recalculated according to the above process. When the seat inclination is reset, tn and t are recalculated according to the above process. When the judgment condition tn-t<T1 is met, it is judged that the occupant is still in a state of fatigue, and an additional level of inclination angle adjustment is added, and the duration is set to T2; when the judgment condition tn-t<T1 is not met, it is judged that the occupant has eliminated fatigue and the adjustment is ended. In other examples, massage adjustment and angle adjustment can be performed at the same time.

[0057] Reference Figure 4a-4h , shows a schematic diagram of various timing active adjustment methods of a seat assembly according to an embodiment of the present invention. Figure 4aIt is a schematic diagram of the pressure-timing-massage-single-speed active adjustment method of the seat assembly, and its specific implementation method can be described as follows. First, collect the current total pressure value P1 of the pressure pad covered by the contact surface. When the total pressure value changes, the changed total pressure value is recorded as P2, and the instantaneous change value of the total pressure value ΔP=|P2-P1| is calculated. Set the total pressure value change limit value C, set the number of occupant actions N, and the initial value N=0. When the judgment condition is met: ΔP>C and there is no external disturbance, the number of occupant actions N counts +1; when the judgment condition is not met: ΔP>C and there is no external disturbance, the number of occupant actions N counts +0. The total count value of the number of occupant actions at the current moment is recorded as Nt, and the total count value of the number of occupant actions T1 time before the current moment is recorded as Nt', and the number of occupant actions limit value N' is set. When the judgment condition Nt-Nt'>N' is met, it is judged that the occupant is in a state of fatigue, and the seat is automatically adjusted to start massage, and reset after T2 time; when the judgment condition Nt-Nt'>N' is not met, it is judged that the occupant is not in a state of fatigue, and Nt and Nt' are recalculated according to the above process. When the massage stops, Nt and Nt' are recalculated according to the above process. When the judgment condition Nt-Nt'>N' is met, it is judged that the occupant is still in a state of fatigue, and the massage is repeatedly started, and the duration is set to T2; when the judgment condition Nt-Nt'>N' is not met, it is judged that the occupant has eliminated fatigue, and the adjustment ends.

[0058] See also Figure 4e-4h In other examples, the pressure pads in the timing adjustment method can be replaced with air bags. Figure 4c , 4d , 4g and 4h, in some other examples, the massage adjustment in the timed active adjustment method can be replaced by the angle adjustment of the seat component (it can be a single-level angle adjustment or a multi-level angle adjustment). In some examples, the implementation method of the single-level angle adjustment is as follows: when the judgment condition Nt-Nt'>N' is met, it is judged that the occupant is in a state of fatigue, the seat inclination is adjusted, and reset after T2 time; when the judgment condition Nt-Nt'>N' is not met, it is judged that the occupant is not in a state of fatigue, and Nt and Nt' are recalculated according to the above process. When the seat inclination is reset, Nt and Nt' are recalculated according to the above process. When the judgment condition Nt-Nt'>N' is met, it is judged that the occupant is still in a state of fatigue, and the seat inclination is repeatedly adjusted, and the duration is set to T2; when the judgment condition Nt-Nt'>N' is not met, it is judged that the occupant has eliminated fatigue and the adjustment is ended.

[0059] In some examples, the implementation method of multi-level angle adjustment is as follows: when the judgment condition Nt-Nt'>N' is met, it is judged that the occupant is in a state of fatigue, the seat inclination is adjusted, and reset after T2 time; when the judgment condition Nt-Nt'>N' is not met, it is judged that the occupant is not in a state of fatigue, and Nt and Nt' are recalculated according to the above process. When the seat inclination is reset, Nt and Nt' are recalculated according to the above process. When the judgment conditions Nt and Nt' are met, it is judged that the occupant is still in a state of fatigue, and an additional level of inclination angle adjustment is added to the seat, and the duration is set to T2; when the judgment conditions Nt and Nt' are not met, it is judged that the occupant has eliminated fatigue and the adjustment is ended. In other examples, massage adjustment and angle adjustment can be performed at the same time.

[0060] See also Figure 4b and 4f In other embodiments, in the timed active adjustment method, the single-speed massage adjustment can be replaced by a multi-speed massage adjustment, and the different implementation steps of the multi-speed massage adjustment are as follows: after the first massage stops, Nt and Nt' are recalculated according to the above process. When the judgment condition Nt-Nt'>N' is met, it is judged that the occupant is still in a state of fatigue, and the massage is started with an increased strength of one level, and the duration is set to T2; when the judgment condition Nt-Nt'>N' is not met, it is judged that the occupant has eliminated fatigue and the adjustment is ended.

[0061] In other examples, based on the occupant fatigue detection result obtained by the occupant fatigue detection method of the aforementioned embodiment, the seat assembly can also be vibrated and adjusted. The vibration unit provided in the seat assembly can be used to realize the reminder function of the occupant in a fatigue state. Furthermore, the vibration unit can also provide an auxiliary massage function. In other examples, the reminder function of the occupant in a fatigue state can also be realized through the audio unit.

[0062] In some other examples, the occupant fatigue detection result obtained by the occupant fatigue detection method of the above embodiment can also adjust the temperature of the seat assembly. For example, when it is detected that the occupant is in a fatigue state and the current season is winter, the ambient temperature is increased by the heating unit provided in the seat assembly to improve the comfort of the occupant; when it is detected that the occupant is in a fatigue state and the current season is summer, the ambient temperature is lowered by adjusting the ventilation to improve the comfort of the occupant.

[0063] Reference Figure 5, shows a block diagram of an occupant fatigue detection device 500 according to an embodiment of the present invention. The occupant fatigue detection device 500 comprises: a pressure measurement value acquisition module 510, configured to acquire the pressure measurement value in the preset area of ​​the seat component; a first judgment module 520, configured to compare the change value of the total value of the pressure measurement value with the preset change limit value to determine whether the occupant has moved; an action information acquisition module 530, configured to acquire the action number information and action time information of the occupant based on the judgment result of whether the occupant has moved; a second judgment module 540, configured to determine whether the occupant is fatigued based on the action number information and action time information of the occupant to obtain the occupant fatigue detection result.

[0064] Furthermore, in some examples, the detection device 500 also includes an adjustment module (not shown), which is configured to adjust the seat assembly based on the detection result of occupant fatigue to relieve occupant fatigue and improve riding comfort. The specific adjustment method can be flexibly set according to the application scenario of the device. For example, when the vehicle is provided with a massage system, occupant fatigue can be relieved by adjusting the massage system. For another example, when the angle of the seat assembly is adjustable, the riding comfort can be improved by adjusting the angle of the seat assembly.

[0065] refer to Figure 6 , a block diagram of a computing device 600 according to an embodiment of the present invention is shown. The computing device 600 includes at least one processor 610 and a memory 620 coupled to the at least one processor 610. The memory 620 is used to store machine-readable instructions, and when the machine-readable instructions are executed by at least one processor 610, the processor 610 executes the method in the above embodiment (for example, any one or more steps in the aforementioned method 100). In some examples, the processor may be a controller of a vehicle (for example, an electronic processing unit (ECU) or the like).

[0066] See also Figure 7 Another embodiment of the present invention provides a seat assembly 700, which includes a seat body 710; at least one sensor 720, which is arranged on the seat body 710; a controller 730, which is in communication with the sensor 720 and is programmed to obtain an occupant fatigue detection result according to the following method, the method comprising: obtaining a pressure measurement value in a preset area of ​​the seat assembly through the sensor 720; comparing a change value of a total value of the pressure measurement value with a preset change limit value to determine whether the occupant is moving; obtaining the occupant's movement frequency information and movement time information based on the determination result of whether the occupant is moving; judging whether the occupant is fatigued based on the occupant's movement frequency information and movement time information to obtain an occupant fatigue detection result.

[0067] The present invention further provides a vehicle, which may include the occupant fatigue detection device 500 or the computing device 600 or the seat assembly 700 described above. In some examples, the vehicle includes the occupant fatigue detection device 500 and a seat assembly, in which a pressure measurement unit is arranged. The pressure measurement unit is in communication connection with the occupant fatigue detection device 500, and is used to send the collected pressure measurement information to the occupant fatigue detection device 500 in real time for the device to process to obtain the occupant fatigue detection result.

[0068] In addition, alternatively, the above method can be implemented by a computer-readable storage medium. Computer-readable storage media are loaded with computer-readable program instructions for executing various embodiments of the present disclosure. Computer-readable storage media can be a tangible device that can hold and store instructions used by an instruction execution device. Computer-readable storage media can be, for example, but not limited to, electrical storage devices, magnetic storage devices, optical storage devices, electromagnetic storage devices, semiconductor storage devices, or any suitable combination of the above. More specific examples (non-exhaustive lists) of computer-readable storage media include: portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), static random access memories (SRAM), portable compact disk read-only memories (CD-ROM), digital versatile disks (DVD), memory sticks, floppy disks, mechanical encoding devices, such as punch cards or protruding structures in grooves on which instructions are stored, and any suitable combination of the above. The computer-readable storage medium used herein is not to be construed as a transient signal per se, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium (e.g., light pulses through a fiber optic cable), or an electrical signal transmitted through wires.

[0069] Therefore, in another embodiment, the present disclosure proposes a computer-readable storage medium having computer-executable instructions stored thereon, where the computer-executable instructions are used to execute any steps of the methods in various embodiments of the present disclosure.

[0070] It should be noted that the present invention (e.g., the inventive concept, etc.) has been described in the specification of this patent document and / or illustrated in the drawings according to the exemplary embodiments; the embodiments of the present invention are presented only by way of example and are not intended to limit the scope of the present invention. The structure and / or arrangement of the elements of the inventive concept embodied in the present invention as described in the specification and / or illustrated in the drawings is merely illustrative. Although the exemplary embodiments of the present invention have been described in detail in this patent document, it is readily understood by those of ordinary skill in the art that equivalents, modifications, variations, etc. of the subject matter of the exemplary embodiments and alternative embodiments are possible and are considered to be within the scope of the present invention; all of these subject matters (e.g., modifications, variations, embodiments, combinations, equivalents, etc.) are intended to be included within the scope of the present invention. It should also be noted that various / other modifications, changes, substitutions, equivalents, alterations, omissions, etc. may be made in the configuration and / or arrangement of the exemplary embodiments (e.g., in terms of concepts, designs, structures, devices, forms, assemblies, constructions, means, functions, systems, processes / methods, steps, the order of process / method steps, operations, operating conditions, performances, materials, compositions, combinations, etc.) without departing from the scope of the present invention; all of these subjects (e.g., modifications, changes, embodiments, combinations, equivalents, etc.) are intended to be included within the scope of the present invention. The scope of the present invention is not intended to be limited to the subject matter (e.g., details, structures, functions, materials, behaviors, steps, sequences, systems, results, etc.) described in the specification and / or drawings of this patent document. Considering that the claims of this patent document will be appropriately interpreted as covering the full scope of the subject matter of the present invention (e.g., including any and all such modifications, changes, embodiments, combinations, equivalents, etc.); it should be understood that the terms used in this patent document are intended to provide a description of the subject matter of the exemplary embodiments, rather than as a limitation on the scope of the present invention.

[0071] It should also be noted that, depending on the exemplary embodiment, the present invention may include conventional technologies (such as technologies implemented and / or integrated in exemplary embodiments, modifications, variations, combinations, equivalents), or may include any other applicable technologies (present and / or future) with the ability to perform the functions and processes / operations described in the specification and / or illustrated in the figures. All of these technologies (such as technologies implemented in embodiments, modifications, variations, combinations, equivalents, etc.) are considered to be within the scope of the present invention of this patent document.

Claims

1. A method for detecting occupant fatigue, comprising: obtaining pressure measurements within a predetermined area of ​​the seat assembly; Comparing the change value of the total value of the pressure measurement value with a preset change limit value to determine whether the occupant has taken action; Based on the result of determining whether the occupant has taken action, obtaining the occupant's action frequency information and action time information; Whether the occupant is fatigued is determined based on the occupant's action frequency information and action time information to obtain an occupant fatigue detection result.

2. The occupant fatigue detection method according to claim 1, wherein: The step of judging whether the occupant is fatigued based on the occupant's action number information and action time information includes: Based on the action number information and action time information of the occupant, obtaining the action number of the occupant within a preset time period; When the number of actions of the occupant within the preset time period is greater than a preset number limit, it is determined that the occupant is in a fatigue state.

3. The occupant fatigue detection method according to claim 1, wherein: The step of judging whether the occupant is fatigued based on the occupant's action number information and action time information includes: Based on the action number information of the occupant and the time information, obtaining the time taken by the occupant's action number to reach a preset limit value; When the time taken for the occupant's action times to reach a preset time limit is less than a preset time limit, it is determined that the occupant is in a fatigue state.

4. The occupant fatigue detection method according to claim 1, wherein: Also includes: Detect whether there is external disturbance by means of external fluctuation detection; Based on the detection result of the external disturbance and the comparison result of the change value of the total value of the pressure measurement value and the preset change limit value, it is judged whether the occupant has taken action.

5. The occupant fatigue detection method according to claim 1, wherein the seat assembly comprises a plurality of the preset areas, and the method further comprises: Performing regional detection on the plurality of preset areas to obtain occupant fatigue detection results of the respective preset areas; The seat assembly is adjusted based on the occupant fatigue detection results of the respective preset areas.

6. The occupant fatigue detection method according to claim 5, wherein: The plurality of preset areas include a backrest area and a seat cushion area, and at least one pressure measuring unit is disposed in each of the backrest area and the seat cushion area.

7. The occupant fatigue detection method according to claim 5, wherein: Adjustments to the seat assembly include massage adjustment, angle adjustment, vibration adjustment and / or temperature adjustment.

8. A seat assembly comprising: Seat body; at least one sensor disposed on the seat body; A controller is in communication with the sensor and is programmed to obtain an occupant fatigue detection result according to the following method, the method comprising: obtaining pressure measurement values ​​within a preset area of ​​the seat assembly through the sensor; Comparing the change value of the total value of the pressure measurement value with a preset change limit value to determine whether the occupant has taken action; Based on the result of determining whether the occupant has taken action, obtaining the occupant's action frequency information and action time information; Whether the occupant is fatigued is determined based on the occupant's action frequency information and action time information to obtain an occupant fatigue detection result.

9. An occupant fatigue detection device, comprising: A pressure measurement value acquisition module configured to acquire a pressure measurement value within a preset area of ​​the seat assembly; A first judgment module is configured to compare a change value of the total value of the pressure measurement value with a preset change limit value to judge whether the occupant has taken action; an action information acquisition module, configured to acquire action number information and action time information of the occupant based on the judgment result of whether the occupant has taken an action; The second judgment module is configured to judge whether the occupant is fatigued based on the occupant's action number information and action time information to obtain an occupant fatigue detection result. 10 . A computer-readable storage medium having computer-executable instructions stored thereon, wherein the computer-executable instructions are used to execute the occupant fatigue detection method according to any one of claims 1 to 7.

11. A computing device comprising: at least one processor; as well as A memory for storing computer executable instructions, which, when executed, enables the at least one processor to perform the occupant fatigue detection method according to any one of claims 1 to 7.

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