Seat comfort evaluation method, device, equipment and storage medium

Abstract

The present invention belongs to the field of vehicle technology, and discloses a seat comfort evaluation method, device, equipment and storage medium. The present invention obtains a human body evaluation model based on a comfort evaluation instruction; performs a comfort evaluation on a zero-gravity seat according to posture constraints, a human body evaluation model and a comfort simulation analysis method to obtain comfort evaluation parameters; and determines the comfort evaluation result of the zero-gravity seat according to the comfort evaluation parameters and the comfort evaluation standard. Through the above method, the human body evaluation model is placed on the zero-gravity seat according to the posture constraints, and a comfort evaluation is performed based on the comfort simulation analysis method to obtain the comfort evaluation parameters of the zero-gravity seat. The comfort evaluation result of the zero-gravity seat is obtained by using the comfort evaluation parameters and the comfort evaluation standard, thereby realizing the analysis of the user's comfort under the action of the zero-gravity seat and ensuring the accuracy of the comfort analysis result.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a seat comfort evaluation method, device, equipment and storage medium. Background Art

[0002] As products in the domestic automobile market continue to innovate, consumers have higher and higher requirements for vehicles. Simple performance has long been unable to meet the needs of today's consumers. Various large-screen in-car, game controllers, wireless charging, and even one-click bed functions have been launched, aiming to create a variety of application scenarios in the car to meet customer needs. Zero-gravity seats are one of the scene applications, dedicated to creating an exclusive space in the car to relax the body and mind, completely release fatigue, and let customers feel like they are resting at home and find a sense of belonging at home. In the scene requirements of zero-gravity seats, human-machine comfort is the core. How to ensure the comfort of the human body under the zero-gravity seat is particularly important, which directly affects the customer evaluation of this scene. Summary of the invention

[0003] The main purpose of the present invention is to provide a seat comfort evaluation method, device, equipment and storage medium, aiming to solve the technical problem that the comfort of zero-gravity seats cannot be evaluated in the prior art.

[0004] To achieve the above object, the present invention provides a seat comfort evaluation method, which comprises the following steps:

[0005] When receiving a comfort evaluation instruction for a zero-gravity seat, acquiring a human body evaluation model based on the comfort evaluation instruction;

[0006] Performing a comfort evaluation on the zero-gravity seat according to the posture constraint condition, the human body evaluation model and the comfort simulation analysis method to obtain a comfort evaluation parameter;

[0007] The comfort evaluation result of the zero-gravity seat is determined according to the comfort evaluation parameter and the comfort evaluation standard.

[0008] Optionally, the comfort evaluation of the zero-gravity chair is performed according to the posture constraint condition, the human body evaluation model and the comfort simulation analysis method to obtain the comfort evaluation parameters, including:

[0009] Determine the joint angle range according to the posture constraints;

[0010] Adjusting the posture of the human body evaluation model according to the joint angle range and the zero-gravity chair to obtain a target human body model;

[0011] The comfort of the zero-gravity seat is evaluated according to the target human body model and the comfort simulation analysis method to obtain comfort evaluation parameters of the zero-gravity seat.

[0012] Optionally, before determining the comfort evaluation result of the zero-gravity seat according to the comfort evaluation parameter and the comfort evaluation standard, the method further includes:

[0013] Obtain normal seat evaluation parameters;

[0014] Comparing the normal seat evaluation parameter with the comfort evaluation parameter to determine a comfort comparison result of the zero-gravity seat;

[0015] When the comfort comparison result of the zero-gravity seat is a preset comfort comparison result, the comfort evaluation result of the zero-gravity seat is determined according to the comfort evaluation standard and the comfort evaluation parameter.

[0016] Optionally, determining the comfort evaluation result of the zero-gravity seat according to the comfort evaluation standard and the comfort evaluation parameter includes:

[0017] Determine the evaluation index range of each comfort level according to the comfort evaluation standard;

[0018] Determining the seat comfort level of the zero-gravity seat according to the comfort evaluation parameter and the evaluation index range of each comfort level;

[0019] A comfort evaluation result of the zero-gravity seat is determined according to the seat comfort level of the zero-gravity seat.

[0020] Optionally, before obtaining the normal seat evaluation parameter, the method further includes:

[0021] Obtaining a current operating state of the zero-gravity chair;

[0022] When the current operating state of the zero-gravity chair is the closed state, the human body evaluation model is adjusted according to a preset human body posture to obtain a human body in a target posture;

[0023] A comfort evaluation is performed according to the target posture human body and the comfort simulation analysis method to determine normal seat evaluation parameters.

[0024] Optionally, when receiving a comfort evaluation instruction for the zero-gravity chair, acquiring a human body evaluation model based on the comfort evaluation instruction includes:

[0025] Upon receiving a comfort evaluation instruction for the zero-gravity seat, determining a plurality of human body model sizes according to the comfort evaluation instruction;

[0026] determining a plurality of human evaluation models according to the plurality of human model sizes;

[0027] The step of evaluating the comfort of the zero-gravity seat according to the posture constraint condition, the human body evaluation model and the comfort simulation analysis method to obtain comfort evaluation parameters includes:

[0028] Comfort evaluations are performed respectively according to posture preset conditions, multiple human body evaluation models and the zero-gravity seat to obtain comfort evaluation parameters of each human body evaluation model under the zero-gravity seat.

[0029] Optionally, before the comfort evaluation of the zero-gravity chair is performed according to the posture constraint condition, the human body evaluation model and the comfort simulation analysis method to obtain the comfort evaluation parameter, the method further includes:

[0030] Obtaining a current operating state of the zero-gravity chair;

[0031] When the current operating state of the zero-gravity seat is a closed state, generating a seat start instruction according to the comfort evaluation instruction;

[0032] adjusting the current operating state of the zero-gravity seat to a start state according to the seat start instruction;

[0033] According to the startup state, a step of evaluating the comfort of the zero-gravity seat according to posture constraints, the human body evaluation model and a comfort simulation analysis method is performed to obtain comfort evaluation parameters.

[0034] In addition, to achieve the above-mentioned purpose, the present invention also provides a seat comfort evaluation device, which includes:

[0035] An acquisition module, configured to acquire a human body evaluation model based on a comfort evaluation instruction for a zero-gravity seat when receiving the comfort evaluation instruction;

[0036] An evaluation module, used to evaluate the comfort of the zero-gravity seat according to the posture constraint condition, the human body evaluation model and the comfort simulation analysis method, and obtain comfort evaluation parameters;

[0037] A processing module is used to determine a comfort evaluation result of the zero-gravity seat according to the comfort evaluation parameter and the comfort evaluation standard.

[0038] In addition, to achieve the above-mentioned purpose, the present invention also proposes a seat comfort evaluation device, which includes: a memory, a processor, and a seat comfort evaluation program stored in the memory and executable on the processor, and the seat comfort evaluation program is configured to implement the steps of the seat comfort evaluation method described above.

[0039] In addition, to achieve the above-mentioned purpose, the present invention also proposes a storage medium, on which a seat comfort evaluation program is stored, and when the seat comfort evaluation program is executed by a processor, the steps of the seat comfort evaluation method described above are implemented.

[0040] The present invention obtains a human body evaluation model based on the comfort evaluation instruction when receiving a comfort evaluation instruction for a zero-gravity seat; performs a comfort evaluation on the zero-gravity seat according to posture constraints, the human body evaluation model, and a comfort simulation analysis method to obtain comfort evaluation parameters; and determines the comfort evaluation result of the zero-gravity seat according to the comfort evaluation parameters and the comfort evaluation standard. Through the above method, the human body evaluation model is placed on the zero-gravity seat according to the posture constraints, and a comfort evaluation is performed based on the comfort simulation analysis method to obtain the comfort evaluation parameters of the zero-gravity seat. The comfort evaluation result of the zero-gravity seat is obtained by using the comfort evaluation parameters and the comfort evaluation standard, thereby realizing the analysis of the user's comfort under the action of the zero-gravity seat and ensuring the accuracy of the comfort analysis results. It has innovative guiding significance for the development of zero-gravity seats and their usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a structural schematic diagram of a seat comfort evaluation device in a hardware operating environment involved in an embodiment of the present invention;

[0042] Figure 2 It is a flowchart of the first embodiment of the seat comfort evaluation method of the present invention;

[0043] Figure 3 A schematic diagram of a zero-gravity sitting posture according to an embodiment of a seat comfort evaluation method of the present invention;

[0044] Figure 4 It is a flowchart of the second embodiment of the seat comfort evaluation method of the present invention;

[0045] Figure 5 A schematic diagram of a human body model according to an embodiment of a seat comfort evaluation method of the present invention;

[0046] Figure 6 A schematic diagram of a human body model according to another embodiment of the seat comfort evaluation method of the present invention;

[0047] Figure 7 A schematic diagram of a human body model according to another embodiment of the seat comfort evaluation method of the present invention;

[0048] Figure 8 It is a flowchart of a third embodiment of a seat comfort evaluation method of the present invention;

[0049] Fig. 9 A schematic diagram of a normal sitting posture according to an embodiment of a seat comfort evaluation method of the present invention;

[0050] Fig.10 It is a structural block diagram of the first embodiment of the seat comfort evaluation device of the present invention.

[0051] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0052] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0053] Reference Figure 1 , Figure 1 It is a schematic diagram of the structure of a seat comfort evaluation device in the hardware operating environment involved in an embodiment of the present invention.

[0054] like Figure 1 As shown, the seat comfort evaluation device may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a wireless fidelity (Wireless-Fidelity, Wi-Fi) interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM) memory, or a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk memory. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0055] Those skilled in the art will understand that Figure 1 The structure shown in the figure does not constitute a limitation on the seat comfort evaluation device, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0056] like Figure 1 As shown, the memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and a seat comfort evaluation program.

[0057] exist Figure 1 In the seat comfort evaluation device shown, the network interface 1004 is mainly used for data communication with the network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the seat comfort evaluation device of the present invention can be set in the seat comfort evaluation device, and the seat comfort evaluation device calls the seat comfort evaluation program stored in the memory 1005 through the processor 1001, and executes the seat comfort evaluation method provided by the embodiment of the present invention.

[0058] The embodiment of the present invention provides a seat comfort evaluation method, referring to Figure 2 , Figure 2 The figure is a flow chart of a first embodiment of a seat comfort evaluation method of the present invention.

[0059] In this embodiment, the seat comfort evaluation method includes the following steps:

[0060] Step S10: upon receiving a comfort evaluation instruction for a zero-gravity chair, obtaining a human body evaluation model based on the comfort evaluation instruction.

[0061] It should be noted that the execution subject of this embodiment is a seat comfort evaluation device, wherein the seat comfort evaluation device has functions such as data processing, data communication and program running, and the seat comfort evaluation device can be an integrated controller, a control computer and other devices, and of course, it can also be other devices with similar functions, which is not limited in this embodiment. In this embodiment, the seat comfort evaluation device is taken as an example of a vehicle controller for explanation.

[0062] It is understandable that the zero-gravity human posture comes from NASA's (National Aeronautics and Space Administration) concept of zero gravity. NASA proposed the concept of neutral body posture (NBP) based on the natural posture of the human body in near-zero gravity. Maintaining this posture, all parts of the body are most evenly stressed and feel the most comfortable. Therefore, the key to lying down comfortably is to slightly lower the legs, straighten the spine, and allow the body's joints to form a specific angle of zero gravity. According to the zero-gravity posture defined by this concept, the 2D human body model is as follows: Figure 3 In this embodiment, the zero-gravity chair includes a footrest and a legrest to meet the zero-gravity posture requirements.

[0063] In a specific implementation, when a comfort evaluation instruction for a zero-gravity chair is received from a user, a human body evaluation model is obtained based on the comfort evaluation instruction. In this embodiment, the human body evaluation model refers to a compliance test model designed according to ergonomics and safety standards. The above model represents the body size and structure of an adult, so as to evaluate the comfort of the user under the influence of different seats. In this embodiment, a plurality of human body evaluation models of different heights can be selected for testing. For example, 95%, 50%, and 5% human body evaluation models can be selected for subsequent comfort evaluation, where 95%, 50%, and 5% respectively represent human body evaluation models of different heights.

[0064] Step S20: performing comfort evaluation on the zero-gravity chair according to posture constraint conditions, the human body evaluation model and a comfort simulation analysis method to obtain comfort evaluation parameters.

[0065] It should be noted that, since the comfort evaluation process requires the human body evaluation model to be in a zero-gravity posture, with the legs slightly lowered and the spine straightened, the body joints form a specific angle of zero gravity. Therefore, in this embodiment, the posture preset condition refers to the range of each joint angle in the zero-gravity posture.

[0066] It is understandable that the comfort simulation analysis method is based on the RAMSIS (Rational Automotive Manikin System for Industrial Simulation) tool. RAMSIS is a virtual human modeling and simulation software used for ergonomic design of cars, airplanes and other vehicles. It can help engineers simulate the posture, comfort and safety of passengers or drivers in vehicles for better design and evaluation. RAMSIS software can help manufacturers optimize seat design, control panel layout, accessibility and other factors to improve the riding and driving experience.

[0067] In a specific implementation, the comfort evaluation parameter may be a comfort score of the zero-gravity seat or a discomfort score of the zero-gravity seat. In the present embodiment, the discomfort score of the zero-gravity seat is selected as the comfort evaluation parameter.

[0068] It should be noted that the human body evaluation model is placed on the zero-gravity seat according to the posture constraint conditions, and the comfort evaluation is performed through the comfort simulation analysis method, so as to obtain the comfort evaluation parameters of the zero-gravity seat. In this embodiment, the position of the zero-gravity seat is any other seating position in the vehicle except the main driving seat.

[0069] It is understood that RAMSIS Discomfort Analysis, one of the powerful analysis functions of RAMSIS, allows the designer to determine the static discomfort level of different body parts related to the driving posture simulated by RAMSIS. Therefore, the designer can study the impact on driving posture and discomfort when the layout design is changed, allowing to optimize the corresponding driver comfort in the early digital stage of the vehicle development process. RAMSIS evaluates the lack of discomfort better than comfort, because discomfort is related to more tangible physical parameters such as muscle tension, fatigue, blood circulation or pain, and both the reduction and increase of discomfort can be actually perceived / felt by the human body. Therefore, to a certain extent, discomfort can be measured. On the other hand, comfort is rarely precise and is often related to emotional parameters.

[0070] In practice, at the beginning of RAMSIS development, no specific model of driver comfort was implemented in the software. It is still a common consensus that driver comfort involves too many complex parameters, not some objective ones (such as joint angles, muscle tension and pressure), but many subjective ones (such as cultural background, previous driving experience and ideology). Generally speaking, comfort is a large subjective experience and it is very difficult to describe comfort with physical parameters alone. For the above reasons, a discomfort evaluation function was developed in RAMSIS, which was not determined by developing a physical model for discomfort, but was determined by evaluation based on experimental data. For the discomfort measurement, an adjustable physical model vehicle was used. Three configurations of vehicle models were used for this experiment, including a minibus, a sedan and a sports car. During the driving task, the experimental subject's (driver's) posture (joint angle) was measured in three-dimensional coordinate representation. The measurement subjects were asked to rate their perceived discomfort in different parts of the body and the overall discomfort feeling, on a continuous scale, using a standardized questionnaire. The body parts were neck, shoulder, back, hip, left leg, right leg, left arm and right arm. The discomfort ratings on the questionnaire for each test subject were statistically correlated with the test subject's posture data using multiple linear regression analysis. In this way, a mathematical relationship was established between posture and self-perceived discomfort that could be used to determine the discomfort of other parts of the body. It was found that for each body part, the discomfort level was influenced by several joint points. It was found that relatively "distant" joints influenced the discomfort of some body parts. It can be assumed that this phenomenon is due to the fact that the body tries to compensate for the pressure acting on a certain body area by transferring part of the pressure to other parts of the body. The discomfort measurements were collected while the test subjects were performing normal driving tasks, when the joint forces were at or within the physiological limits, so it was not possible to study the discomfort levels in extreme cases. It was found that within the "reasonable" range of joint excursions, i.e. the normal driving posture, the discomfort and joint excursion had a more or less linear relationship. Close to the physiological limits, the discomfort increased exponentially with increasing joint excursion. In order to fully simulate the power-order increase in discomfort corresponding to joint displacements within the physiological boundary area, experimental data are called power-order pain components. This function ensures that, without affecting the established relationship between posture and discomfort, the joint angles that are more likely to be adopted in the driving posture lead to a power-order increase in discomfort in the surrounding area of ​​the body. The correlation between posture and self-perceived discomfort level can be used to predict the posture discomfort associated with the RAMSIS simulated driving posture. Designers can therefore study the impact of design changes on driver posture and comfort and optimize arrangements related to driver comfort early in the design phase.

[0071] Step S30: Determine the comfort evaluation result of the zero-gravity seat according to the comfort evaluation parameter and the comfort evaluation standard.

[0072] It should be noted that the comfort evaluation standard includes the discomfort score range corresponding to different comfort levels under each evaluation item. For ease of understanding, Table 1 is used as an example. It is not limited to the values ​​and levels in Table 1 and can be set according to actual conditions.

[0073] Table 1

[0074]

[0075] It can be understood that the comfort evaluation level of the zero-gravity seat can be determined based on the comfort evaluation parameters and the comfort evaluation range, and the comfort evaluation result of the zero-gravity seat can be obtained through the comfort evaluation level of the zero-gravity seat.

[0076] This embodiment obtains a human body evaluation model based on the comfort evaluation instruction when receiving a comfort evaluation instruction for a zero-gravity seat; performs a comfort evaluation on the zero-gravity seat according to posture constraints, the human body evaluation model, and a comfort simulation analysis method to obtain comfort evaluation parameters; and determines the comfort evaluation result of the zero-gravity seat according to the comfort evaluation parameters and the comfort evaluation standard. In the above manner, the human body evaluation model is placed on the zero-gravity seat according to the posture constraints, and a comfort evaluation is performed based on the comfort simulation analysis method to obtain the comfort evaluation parameters of the zero-gravity seat. The comfort evaluation result of the zero-gravity seat is obtained by using the comfort evaluation parameters and the comfort evaluation standard, thereby realizing the analysis of the user's comfort under the action of the zero-gravity seat and ensuring the accuracy of the comfort analysis results. This has innovative guiding significance for the development of zero-gravity seats and their usage scenarios.

[0077] refer to Figure 4 , Figure 4 It is a flow chart of a second embodiment of a seat comfort evaluation method of the present invention.

[0078] Based on the first embodiment, step S20 of the seat comfort evaluation method of this embodiment includes:

[0079] Step S21: Determine the joint angle range according to the posture constraint conditions.

[0080] It should be noted that, since the posture preset conditions include the range of each joint angle under the zero gravity posture, for ease of understanding, an example is given through Table 2, and it is not limited to the numerical range in Table 2, and can be set according to actual conditions.

[0081] Table 2

[0082]

[0083] It can be understood that, based on the posture constraint conditions, the joint angle range of each body part of each human evaluation model in a zero-gravity posture can be determined.

[0084] Step S22: adjusting the posture of the human body evaluation model according to the joint angle range and the zero-gravity chair to obtain a target human body model.

[0085] It should be noted that the human body evaluation model is placed on the zero-gravity chair according to the joint angle range, at which time the footrest and legrest of the zero-gravity chair are both opened, and based on the angles of the footrest and legrest, the calf of the human body evaluation model is placed on the legrest, and the foot of the human body evaluation model is placed on the footrest, and the joint angles of various parts of the human body evaluation model are measured to see whether they are within the joint angle range. In this embodiment, since the upper body of the human body evaluation model can be adjusted by the seat back, it is very easy to reach various angles and meet various posture requirements, so only the angles of various parts of the lower body of the human body evaluation model are measured to see whether they are within the joint angle range.

[0086] It can be understood that when the joint angles of various parts of the human body evaluation model are within the joint angle range, it means that the human body evaluation model is already in a zero gravity posture. At this time, there is no need to adjust the posture. The human body evaluation model with completed posture adjustment is the target human body model.

[0087] Step S23: performing a comfort evaluation on the zero-gravity seat according to the target human body model and the comfort simulation analysis method to obtain a comfort evaluation parameter of the zero-gravity seat.

[0088] It should be noted that the discomfort score of the lower body of the target human model in zero-gravity posture is evaluated based on the comfort simulation analysis method, so as to obtain the comfort evaluation parameters of the zero-gravity seat.

[0089] It can be understood that in order to ensure the rationality and accuracy of the evaluation and avoid contingency in the evaluation process, further, when receiving the comfort evaluation instruction for the zero-gravity seat, the human body evaluation model is obtained based on the comfort evaluation instruction, including: when receiving the comfort evaluation instruction for the zero-gravity seat, multiple human body model sizes are determined according to the comfort evaluation instruction; multiple human body evaluation models are determined according to the multiple human body model sizes; the comfort evaluation of the zero-gravity seat is performed according to the posture constraint conditions, the human body evaluation model and the comfort simulation analysis method to obtain comfort evaluation parameters, including: the comfort evaluation is performed according to the posture preset conditions, multiple human body evaluation models and the zero-gravity seat respectively, and the comfort evaluation parameters of each human body evaluation model under the zero-gravity seat are obtained.

[0090] In a specific implementation, when a comfort evaluation instruction for a zero-gravity seat is received, the height dimensions of multiple required human models are determined according to the comfort evaluation instruction. The dimensions of multiple required human models are human model dimensions. A corresponding human evaluation model is selected according to the multiple human model dimensions. When performing a subsequent comfort evaluation, each human evaluation model needs to perform the same steps to obtain the comfort evaluation parameters of each human evaluation model, and the comfort evaluation results of human evaluation models of different human model dimensions under a zero-gravity seat are obtained, thereby avoiding contingency during the test. For example, Figure 5 , 6 As shown in , 7 , 95%, 50%, and 5% of the human evaluation model are in a zero-gravity posture located on a zero-gravity seat, respectively.

[0091] It should be noted that in order to ensure the accuracy of the test, it is necessary to ensure that the comfort of the zero-gravity seat is evaluated when it is started. Furthermore, before the comfort evaluation parameters are obtained by evaluating the comfort of the zero-gravity seat according to the posture constraints, the human body evaluation model and the comfort simulation analysis method, the process also includes: obtaining the current operating state of the zero-gravity seat; when the current operating state of the zero-gravity seat is the closed state, generating a seat start-up instruction according to the comfort evaluation instruction; adjusting the current operating state of the zero-gravity seat to the start-up state according to the seat start-up instruction; and executing the steps of evaluating the comfort of the zero-gravity seat according to the posture constraints, the human body evaluation model and the comfort simulation analysis method according to the start-up state to obtain the comfort evaluation parameters.

[0092] It is understandable that before conducting a comfort evaluation on a zero-gravity seat, it is necessary to obtain the current operating status of the zero-gravity seat. When the current operating status of the zero-gravity seat is in the off state, a seat start instruction is generated according to the comfort evaluation instruction, and based on the seat start instruction, the current operating status of the zero-gravity seat is adjusted to the start state, and the footrest and leg rest of the zero-gravity seat are opened, thereby conducting a comfort evaluation on the zero-gravity seat.

[0093] In this embodiment, the joint angle range is determined according to the posture constraint condition; the posture of the human evaluation model is adjusted according to the joint angle range and the zero-gravity chair to obtain a target human model; the comfort evaluation of the zero-gravity chair is performed according to the target human model and the comfort simulation analysis method to obtain the comfort evaluation parameters of the zero-gravity chair. In the above manner, the comfort evaluation parameters of the zero-gravity chair can be accurately obtained.

[0094] refer to Figure 8 , Figure 8 It is a flow chart of a second embodiment of a seat comfort evaluation method of the present invention.

[0095] Based on the above embodiment, the seat comfort evaluation method of this embodiment further includes, before step S20:

[0096] Step S01: Obtain normal seat evaluation parameters.

[0097] It should be noted that the normal seat evaluation parameter refers to the evaluation parameter of the human body evaluation model when it is located in a normal seat on an unactivated zero gravity seat. The normal seat evaluation parameter can be a comfort score or an discomfort score. In this embodiment, the discomfort score is selected as the normal seat evaluation parameter.

[0098] It can be understood that in order to obtain accurate normal seat evaluation parameters, further, before obtaining the normal seat evaluation parameters, it also includes: obtaining the current operating state of the zero-gravity seat; when the current operating state of the zero-gravity seat is the closed state, adjusting the posture of the human body evaluation model according to the preset human body posture to obtain the target posture human body; performing comfort evaluation according to the target posture human body and comfort simulation analysis method to determine the normal seat evaluation parameters.

[0099] In the specific implementation, the evaluation process of normal seat evaluation parameters needs to be carried out when the zero-gravity seat is turned off. Therefore, it is necessary to first determine the current operating state of the zero-gravity seat. When the current operating state of the zero-gravity seat is the turned off state, obtain the preset human body posture. The preset human body posture is the human body posture in a normal upright sitting position, for example, keeping the spine straight, feet flat on the ground, knees at a 90-degree angle, shoulders relaxed, etc.

[0100] It can be understood that the human body evaluation model is placed on a seat without activating the footrest and legrest, and the posture of the human body evaluation model is adjusted according to the preset human body posture to obtain the target posture human body, and the target posture human body is the human body evaluation model after the posture adjustment, for example Fig. 9 shown.

[0101] In a specific implementation, the discomfort score of the lower body of the target posture model in a normal sitting position is evaluated based on a comfort simulation analysis method, thereby obtaining normal seat evaluation parameters.

[0102] Step S02: Compare the normal seat evaluation parameter with the comfort evaluation parameter to determine the comfort comparison result of the zero-gravity seat.

[0103] It should be noted that after the human evaluation model of the same height and size is evaluated for comfort, the obtained normal seat evaluation parameters and comfort evaluation parameters are compared to determine the comfort comparison result of the zero-gravity seat. In this embodiment, since the evaluation parameter is a discomfort score, when the comfort evaluation parameter of the zero-gravity seat is lower than the score of the normal seat evaluation parameter, it means that the human body will feel more comfortable in the zero-gravity seat, and when the comfort evaluation parameter of the zero-gravity seat is lower than the score of the normal seat evaluation parameter, it means that the human body will feel more comfortable in the normal sitting position.

[0104] It can be understood that after the actual vehicle test, the normal seat evaluation parameters and comfort evaluation parameters obtained are shown in Table 3 and Table 4 respectively. It can be seen that the discomfort of the zero-gravity posture of each human body model with the leg rest opened is significantly lower than that of the normal sitting posture, that is, the user comfort under the zero-gravity seat is better, and the comfort is significantly improved compared with the normal sitting posture. Therefore, within the opening travel of the foot rest of the zero-gravity seat, each user can reach the zero-gravity calf angle range and meet the human body comfort.

[0105] Step S03: When the comfort comparison result of the zero-gravity seat is a preset comfort comparison result, the comfort evaluation result of the zero-gravity seat is determined according to the comfort evaluation standard and the comfort evaluation parameter.

[0106] It should be noted that when the comfort evaluation parameter is lower than the normal seat evaluation parameter score, it means that the comfort comparison result of the zero-gravity seat is the preset comfort comparison result. At this time, the comfort evaluation result of the zero-gravity seat is determined according to the comfort evaluation standard and the comfort evaluation parameter.

[0107] It can be understood that in order to obtain more accurate and intuitive comfort evaluation results of the zero-gravity seat, further, the comfort evaluation results of the zero-gravity seat are determined according to the comfort evaluation standard and the comfort evaluation parameters, including: determining the evaluation index range of each comfort level according to the comfort evaluation standard; determining the seat comfort level of the zero-gravity seat according to the comfort evaluation parameters and the evaluation index range of each comfort level; determining the comfort evaluation results of the zero-gravity seat according to the seat comfort level of the zero-gravity seat.

[0108] In a specific implementation, based on the discomfort evaluation standard including the discomfort score range corresponding to different comfort levels under each evaluation item, the discomfort score range corresponding to the discomfort level is the evaluation index range of each comfort level, and the evaluation index range of the comfort evaluation parameter of the zero-gravity seat is determined, so as to obtain the seat comfort level of the zero-gravity seat, and obtain the comfort evaluation result based on the seat comfort level of the zero-gravity seat. In this embodiment, when the comfort evaluation parameter of the zero-gravity seat includes the evaluation parameters corresponding to multiple evaluation items, based on the evaluation index range corresponding to different comfort levels of different evaluation items, the seat comfort level corresponding to the zero-gravity seat under different evaluation items is determined, and the seat comfort level corresponding to the zero-gravity seat under different evaluation items is used as the comfort evaluation result of the zero-gravity seat.

[0109] This embodiment obtains normal seat evaluation parameters; compares the normal seat evaluation parameters with the comfort evaluation parameters to determine the comfort comparison result of the zero-gravity seat; when the comfort comparison result of the zero-gravity seat is a preset comfort comparison result, the comfort evaluation result of the zero-gravity seat is determined according to the comfort evaluation standard and the comfort evaluation parameters. In the above manner, the accuracy of the comfort evaluation result of the zero-gravity seat is guaranteed.

[0110] In addition, an embodiment of the present invention further proposes a storage medium, on which a seat comfort evaluation program is stored. When the seat comfort evaluation program is executed by a processor, the steps of the seat comfort evaluation method described above are implemented.

[0111] Reference Fig.10 , Fig.10 It is a structural block diagram of the first embodiment of the seat comfort evaluation device of the present invention.

[0112] like Fig.10 As shown, the seat comfort evaluation device proposed in the embodiment of the present invention includes:

[0113] The acquisition module 10 is used to acquire the human body evaluation model based on the comfort evaluation instruction when receiving the comfort evaluation instruction for the zero-gravity chair.

[0114] The evaluation module 20 is used to evaluate the comfort of the zero-gravity chair according to the posture constraint conditions, the human body evaluation model and the comfort simulation analysis method to obtain comfort evaluation parameters.

[0115] The processing module 30 is used to determine the comfort evaluation result of the zero-gravity seat according to the comfort evaluation parameter and the comfort evaluation standard.

[0116] This embodiment obtains a human body evaluation model based on the comfort evaluation instruction when receiving a comfort evaluation instruction for a zero-gravity seat; performs a comfort evaluation on the zero-gravity seat according to posture constraints, the human body evaluation model, and a comfort simulation analysis method to obtain comfort evaluation parameters; and determines the comfort evaluation result of the zero-gravity seat according to the comfort evaluation parameters and the comfort evaluation standard. In the above manner, the human body evaluation model is placed on the zero-gravity seat according to the posture constraints, and a comfort evaluation is performed based on the comfort simulation analysis method to obtain the comfort evaluation parameters of the zero-gravity seat. The comfort evaluation result of the zero-gravity seat is obtained by using the comfort evaluation parameters and the comfort evaluation standard, thereby realizing the analysis of the user's comfort under the action of the zero-gravity seat and ensuring the accuracy of the comfort analysis results. This has innovative guiding significance for the development of zero-gravity seats and their usage scenarios.

[0117] In one embodiment, the evaluation module 20 is further used to determine the joint angle range according to the posture constraint condition;

[0118] Adjusting the posture of the human body evaluation model according to the joint angle range and the zero-gravity chair to obtain a target human body model;

[0119] The comfort of the zero-gravity seat is evaluated according to the target human body model and the comfort simulation analysis method to obtain comfort evaluation parameters of the zero-gravity seat.

[0120] In one embodiment, the evaluation module 20 is further used to obtain normal seat evaluation parameters;

[0121] Comparing the normal seat evaluation parameter with the comfort evaluation parameter to determine a comfort comparison result of the zero-gravity seat;

[0122] When the comfort comparison result of the zero-gravity seat is a preset comfort comparison result, the comfort evaluation result of the zero-gravity seat is determined according to the comfort evaluation standard and the comfort evaluation parameter.

[0123] In one embodiment, the evaluation module 20 is further used to determine the evaluation index range of each comfort level according to the comfort evaluation standard;

[0124] Determining the seat comfort level of the zero-gravity seat according to the comfort evaluation parameter and the evaluation index range of each comfort level;

[0125] A comfort evaluation result of the zero-gravity seat is determined according to the seat comfort level of the zero-gravity seat.

[0126] In one embodiment, the evaluation module 20 is further used to obtain the current operating state of the zero-gravity chair;

[0127] When the current operating state of the zero-gravity chair is the closed state, the human body evaluation model is adjusted according to a preset human body posture to obtain a human body in a target posture;

[0128] A comfort evaluation is performed according to the target posture human body and the comfort simulation analysis method to determine normal seat evaluation parameters.

[0129] In one embodiment, the acquisition module 10 is further used to determine the sizes of multiple human models according to the comfort evaluation instruction when receiving the comfort evaluation instruction for the zero-gravity chair;

[0130] determining a plurality of human evaluation models according to the plurality of human model sizes;

[0131] The step of evaluating the comfort of the zero-gravity seat according to the posture constraint condition, the human body evaluation model and the comfort simulation analysis method to obtain comfort evaluation parameters includes:

[0132] Comfort evaluations are performed respectively according to posture preset conditions, multiple human body evaluation models and the zero-gravity seat to obtain comfort evaluation parameters of each human body evaluation model under the zero-gravity seat.

[0133] In one embodiment, the evaluation module 20 is further used to obtain the current operating state of the zero-gravity chair;

[0134] When the current operating state of the zero-gravity seat is a closed state, generating a seat start instruction according to the comfort evaluation instruction;

[0135] adjusting the current operating state of the zero-gravity seat to a start state according to the seat start instruction;

[0136] According to the startup state, a step of evaluating the comfort of the zero-gravity seat according to posture constraints, the human body evaluation model and a comfort simulation analysis method is performed to obtain comfort evaluation parameters.

[0137] It should be understood that the above is only an example and does not constitute any limitation on the technical solution of the present invention. In specific applications, technicians in this field can make settings as needed, and the present invention does not limit this.

[0138] It should be understood that, although the various steps in the flowchart in the embodiment of the present application are displayed in sequence according to the indication of the arrows, these steps are not necessarily performed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and it can be performed in other orders. Moreover, at least a portion of the steps in the figure may include a plurality of sub-steps or a plurality of stages, and these sub-steps or stages are not necessarily performed at the same time, but can be performed at different times, and their execution order is not necessarily performed in sequence, but can be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

[0139] It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of the present invention. In practical applications, technicians in this field can select part or all of them according to actual needs to achieve the purpose of the present embodiment, and no limitation is made here.

[0140] In addition, it should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0141] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0142] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as a read-only memory (ROM) / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0143] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A seat comfort evaluation method, characterized in that: The seat comfort evaluation method comprises: When receiving a comfort evaluation instruction for a zero-gravity seat, acquiring a human body evaluation model based on the comfort evaluation instruction; Performing a comfort evaluation on the zero-gravity chair according to the posture constraint conditions, the human evaluation model and the comfort simulation analysis method to obtain a comfort evaluation parameter, wherein the posture constraint conditions include the range of each joint angle under the zero-gravity posture; Determining a comfort evaluation result of the zero-gravity seat according to the comfort evaluation parameter and the comfort evaluation standard; The comfort evaluation of the zero-gravity seat is performed according to the posture constraint condition, the human body evaluation model and the comfort simulation analysis method to obtain the comfort evaluation parameters, including: Determine the joint angle range according to the posture constraints; Adjusting the posture of the human body evaluation model according to the joint angle range and the zero-gravity chair to obtain a target human body model; The comfort of the zero-gravity seat is evaluated according to the target human body model and the comfort simulation analysis method to obtain comfort evaluation parameters of the zero-gravity seat.

2. The seat comfort evaluation method according to claim 1, characterized in that: Before determining the comfort evaluation result of the zero-gravity seat according to the comfort evaluation parameter and the comfort evaluation standard, the method further includes: Obtain normal seat evaluation parameters; Comparing the normal seat evaluation parameter with the comfort evaluation parameter to determine a comfort comparison result of the zero-gravity seat; When the comfort comparison result of the zero-gravity seat is a preset comfort comparison result, the comfort evaluation result of the zero-gravity seat is determined according to the comfort evaluation standard and the comfort evaluation parameter.

3. The seat comfort evaluation method according to claim 2, characterized in that: Determining the comfort evaluation result of the zero-gravity seat according to the comfort evaluation standard and the comfort evaluation parameter includes: Determine the evaluation index range of each comfort level according to the comfort evaluation standard; Determining the seat comfort level of the zero-gravity seat according to the comfort evaluation parameter and the evaluation index range of each comfort level; A comfort evaluation result of the zero-gravity seat is determined according to the seat comfort level of the zero-gravity seat.

4. The seat comfort evaluation method according to claim 2, characterized in that: Before obtaining the normal seat evaluation parameters, the method further includes: Obtaining a current operating state of the zero-gravity chair; When the current operating state of the zero-gravity chair is the closed state, the human body evaluation model is adjusted according to a preset human body posture to obtain a human body in a target posture; A comfort evaluation is performed according to the target posture human body and the comfort simulation analysis method to determine normal seat evaluation parameters.

5. The seat comfort evaluation method according to any one of claims 1 to 4, characterized in that: When receiving a comfort evaluation instruction for the zero-gravity chair, acquiring a human body evaluation model based on the comfort evaluation instruction includes: Upon receiving a comfort evaluation instruction for the zero-gravity seat, determining a plurality of human body model sizes according to the comfort evaluation instruction; determining a plurality of human evaluation models according to the plurality of human model sizes; The step of evaluating the comfort of the zero-gravity seat according to the posture constraint condition, the human body evaluation model and the comfort simulation analysis method to obtain comfort evaluation parameters includes: Comfort evaluations are performed respectively according to posture preset conditions, multiple human body evaluation models and the zero-gravity seat to obtain comfort evaluation parameters of each human body evaluation model under the zero-gravity seat.

6. The seat comfort evaluation method according to any one of claims 1 to 4, characterized in that: Before the comfort evaluation of the zero-gravity seat is performed according to the posture constraint condition, the human body evaluation model and the comfort simulation analysis method to obtain the comfort evaluation parameter, the method further includes: Obtaining a current operating state of the zero-gravity chair; When the current operating state of the zero-gravity seat is a closed state, generating a seat start instruction according to the comfort evaluation instruction; adjusting the current operating state of the zero-gravity seat to a start state according to the seat start instruction; According to the startup state, a step of evaluating the comfort of the zero-gravity seat according to posture constraints, the human body evaluation model and a comfort simulation analysis method is performed to obtain comfort evaluation parameters.

7. A seat comfort evaluation device, characterized in that: The seat comfort evaluation device comprises: An acquisition module, configured to acquire a human body evaluation model based on a comfort evaluation instruction for a zero-gravity seat when receiving the comfort evaluation instruction; An evaluation module, used for evaluating the comfort of the zero-gravity chair according to the posture constraint conditions, the human evaluation model and the comfort simulation analysis method to obtain comfort evaluation parameters, wherein the posture constraint conditions include the range of each joint angle under the zero-gravity posture; A processing module, used for determining a comfort evaluation result of the zero-gravity seat according to the comfort evaluation parameter and the comfort evaluation standard; The evaluation module is also used to determine the joint angle range according to the posture constraint conditions; adjust the posture of the human body evaluation model according to the joint angle range and the zero-gravity chair to obtain a target human body model; and evaluate the comfort of the zero-gravity chair according to the target human body model and the comfort simulation analysis method to obtain comfort evaluation parameters of the zero-gravity chair.

8. A seat comfort evaluation device, characterized in that: The seat comfort evaluation device includes: a memory, a processor, and a seat comfort evaluation program stored in the memory and executable on the processor, wherein the seat comfort evaluation program is configured to implement the seat comfort evaluation method according to any one of claims 1 to 6.

9. A storage medium, characterized in that: The storage medium stores a seat comfort evaluation program, and when the seat comfort evaluation program is executed by the processor, the seat comfort evaluation method according to any one of claims 1 to 6 is implemented.

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