Seat belt automatic adjustment method, system, and vehicle

Abstract

The application provides a seat belt automatic adjustment method, system and vehicle, and the method comprises the following steps: obtaining body posture information of a target passenger collected by a passenger monitoring module, wherein the target passenger is a passenger who is seated on a target seat and does not wear a target seat belt matched with the target seat; and controlling the movement of the target seat belt according to the body posture information, so as to adjust the tongue plate of the target seat belt to a target height through the seat belt of the target seat belt. The seat belt automatic adjustment method provided by the application can adjust the tongue plate of the seat belt to a height convenient for the passenger to grab according to the body posture of the passenger, so as to facilitate the passenger to wear the seat belt, and the intelligent level is high and the user experience can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of safety belts, in particular to a safety belt automatic adjustment method, system and vehicle. BACKGROUND

[0002] The safety belt of an automobile is a kind of passenger restraint device, and is a very effective safety device on the automobile. When the automobile collides, the safety belt can restrain the passenger on the seat, so that the head and chest of the passenger do not incline forward to collide with the steering wheel, instrument panel and windshield, etc., and can reduce the danger of secondary collision of the passenger.

[0003] The webbing of the safety belt in the automobile is usually fixed and hung on a structural member on one side of the seat, for example, the safety belt of the front seat is fixed and hung on the B pillar of the vehicle. When the passenger wears the safety belt, it is necessary to turn around to find the tongue plate on the webbing to pull the webbing to fix the tongue plate in the safety belt buckle on the other side of the seat, which brings inconvenience to passengers with high or low sitting height, and cannot meet the demand of users for intelligence. In particular, if the driver forgets to wear the safety belt, it will bring great driving risk to turn around to find the safety belt tongue plate during driving. SUMMARY

[0004] Therefore, the main purpose of the present application is to provide a safety belt automatic adjustment method, system and vehicle, which aims to solve the technical problems of inconvenient use and low intelligence level of the safety belt in the prior art.

[0005] To achieve the above-mentioned purpose, the first aspect of the present application provides a safety belt automatic adjustment method for adjusting a safety belt on a vehicle seat, wherein the safety belt comprises a webbing and a tongue plate connected to the webbing. The safety belt automatic adjustment method comprises: acquiring body posture information of a target passenger collected by a passenger monitoring module, wherein the target passenger is a passenger who is seated on a target seat and does not wear a target safety belt matched with the target seat; and controlling the movement of the webbing of the target safety belt according to the body posture information, so as to adjust the tongue plate of the target safety belt to a target height through the webbing of the target safety belt.

[0006] The safety belt automatic adjustment method provided by the present application can conveniently grasp the tongue plate of the target safety belt by acquiring the body posture information of the target passenger collected by the passenger monitoring module, and adjusting the tongue plate of the target safety belt to the target height through the webbing of the target safety belt according to the body posture information, which has high intelligence level and can improve user experience.

[0007] Optionally, the target height comprises a first target height; and the controlling the webbing movement of the target safety belt to adjust the tongue plate of the target safety belt to the target height by the webbing of the target safety belt according to the body posture information of the target occupant comprises: determining whether the target occupant currently maintains a preset sitting posture according to the body posture information of the target occupant; if it is determined that the target occupant currently maintains the preset sitting posture, determining a current height of a preset part of the body of the target occupant according to the body posture information, and controlling the webbing movement of the target safety belt until the tongue plate of the target safety belt is adjusted to the first target height, wherein the first target height is the same as the current height of the preset part of the body of the target occupant.

[0008] Optionally, the target height comprises a second target height; and the controlling the webbing movement of the target safety belt to adjust the tongue plate of the target safety belt to the target height by the webbing of the target safety belt according to the body posture information of the target occupant comprises: determining whether the target occupant has a trend of grabbing the target safety belt according to the body posture information of the target occupant obtained within a preset time; if it is determined that the target occupant has the trend of grabbing the target safety belt, determining a current height of a hand of the target occupant for grabbing the target safety belt according to the body posture information, and controlling the webbing movement of the target safety belt until the tongue plate of the target safety belt is adjusted to the second target height, wherein the second target height is the same as the current height of the hand of the target occupant for grabbing the target safety belt.

[0009] Optionally, the safety belt automatic adjustment method further comprises: collecting and saving body feature information of the target occupant, and saving the first target height corresponding height information.

[0010] Optionally, the safety belt automatic adjustment method further comprises: after the target occupant wears the target safety belt, monitoring whether the target safety belt is unfastened; if it is monitored that the safety belt is unfastened, controlling the webbing movement of the target safety belt according to the first target height corresponding height information until the tongue plate of the target safety belt is adjusted to the first target height.

[0011] Optionally, the safety belt automatic adjustment method further comprises: in response to a vehicle engine-off operation, deleting the body feature information of all the occupants and the first target height corresponding height information.

[0012] Optionally, after it is monitored that the target occupant does not wear a safety belt, the safety belt automatic adjustment method further comprises: controlling the vehicle to perform an alarm reminder.

[0013] The application further provides a seat belt automatic adjustment system for adjusting seat belts on a vehicle seat, the seat belt comprising a webbing and a tongue plate connected to the webbing. The seat belt automatic adjustment system comprises a control module and an occupant monitoring module, the control module being electrically connected to the occupant monitoring module, and the control module being configured to perform the above-described seat belt automatic adjustment method.

[0014] Optionally, the seat belt automatic adjustment system further comprises a motor and a retractor matched with each seat belt, wherein the motor is electrically connected to the control module, and the control module is configured to control the working state of the motor. The retractor is connected to the webbing of the corresponding seat belt and the corresponding motor, and the motor is configured to drive the retractor to rotate when working to drive the corresponding webbing to move.

[0015] The application further provides a vehicle comprising a vehicle body, a seat, and the above-described seat belt automatic adjustment system, wherein the seat belt automatic adjustment system and the seat are arranged in the vehicle body.

[0016] Additional aspects and advantages of the application will be made apparent by the following description. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic diagram of a vehicle provided by an embodiment of the application.

[0018] Figure 2 is a circuit structural schematic diagram of a seat belt automatic adjustment system provided by an embodiment of the application.

[0019] Figure 3 is a flowchart of a seat belt automatic adjustment method provided by an embodiment of the application.

[0020] Figure 4 is a first detailed flowchart of step 640 in Figure 3

[0021] Figure 5 is a second detailed flowchart of step 640 in Figure 3

[0022] Figure 6 is a third detailed flowchart of step 640 in Figure 3

[0023] Figure 7 is a flowchart of another seat belt automatic adjustment method provided by an embodiment of the application.

[0024] The following is a description of the reference signs: ​​​

[0025] Vehicle 1

[0026] Safety belt automatic adjustment system 100

[0027] Vehicle body 200

[0028] Seat 300

[0029] B-pillar 400

[0030] Safety belt 10

[0031] Webbing 11

[0032] Tongue 12

[0033] Buckle 13

[0034] Reel 20

[0035] Motor 30

[0036] Control module 40

[0037] Seat occupancy sensor 50

[0038] Buckle sensor 60

[0039] Occupant monitoring module 70

[0040] Steps 610-730, 641-649, 651

[0041] The following detailed description will further describe the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0043] In the description of the present application, it should be noted that the terms "upper", "lower", "left", "right", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0044] The present application provides a vehicle 1, please see Figures 1-2The vehicle includes a vehicle body 200 and a seat 300. The seat 300 is disposed within the vehicle body 200, and a seat belt 10 is fitted onto the seat 300. The seat belt 10 includes a webbing 11, a tongue plate 12 connected to the webbing 11, and a buckle 13 for locking the tongue plate 12. When the occupant is not wearing the seat belt 10, the webbing 11 of the seat belt 10 is suspended from a structural member on one side of the seat 300 (e.g., Figure 1 The tongue plate 12 is fixedly connected to the webbing 11, and the tongue plate 12 can move with the movement of the webbing 11. In other embodiments, the tongue plate 12 can also be slidably connected to the webbing 11. Accordingly, the webbing 11 is provided with a blocking part (not shown in the figure), and the tongue plate 12 has a slot (not shown in the figure). The webbing 11 passes through the slot so that the tongue plate 12 can be slidably engaged with the seat belt webbing 11. The blocking part is located below the tongue plate 12 and is wider than the slot. The blocking part can restrict the tongue plate 12 to slide above the blocking part. When the seat belt 10 is suspended on the structural member, the tongue plate 12 slides down to the blocking part under the action of gravity. At this time, when the seat belt 10 moves, it will also drive the tongue plate 12 to move through the blocking part. After the occupant is seated in the seat 300, they can wear the seat belt 10 by pulling the tongue plate 12 to allow the webbing 11 to cross their body, and then pressing the tongue plate 12 into the buckle 13. After the occupant has worn the seat belt 10, they can unbuckle the seat belt 10 by pressing the button on the buckle 13 to release the tongue plate 12. In existing vehicles, the seat belt is fixedly suspended on a structural component on one side of the seat. When the occupant wears the seat belt, they need to turn around to grab the tongue plate, which is not very intelligent and inconvenient to use. In particular, if the driver forgets to wear the seat belt, turning at a large angle to grab the seat belt tongue plate while driving poses a great driving risk.

[0045] In view of this, the vehicle 1 provided in this application also includes an automatic seat belt adjustment system 100 disposed in the vehicle body 200. The automatic seat belt adjustment system 100 is used to adjust the height of the tongue plate 12 of the seat belt 10 on the seat 300 according to the occupant's body posture, so as to facilitate the occupant to grab the tongue plate 12 to wear the seat belt 10. Specifically, the automatic seat belt adjustment system 100 includes a retractor 20, a motor 30, a control module 40, and an occupant monitoring module 70.

[0046] The passenger monitoring module 70 is electrically connected with the control module 40, and the passenger monitoring module 70 is configured to collect image information (the image information includes body posture information and body feature information of a passenger, for example, face information) and transmit the collected image information to the control module 40. For example, the passenger monitoring module 70 includes at least one of a DMS (Drive Monitoring System) camera and an OMS (Occupancy Monitoring System) camera. The DMS can not only identify the face state of the driver, but also check the alertness of the driver, which helps to improve the safety performance and can realize a new generation of auxiliary driving function. The OMS camera is an extension of the DMS camera, and the safety performance of the vehicle can be further improved by monitoring the face and body movements of the passengers in the vehicle. For example, the OMS can be used to collect the body posture information of the passengers in the vehicle to assist in determining whether the passengers are seated, whether there is a trend of pulling the safety belt, whether the safety belt is worn properly, and whether a child or a pet is left alone. For example, the passenger monitoring module 70 is arranged above the rearview mirror inside the vehicle body 200.

[0047] The control module 40 is also electrically connected with the motor 30, and the control module 40 is configured to control the working state (including forward rotation and reverse rotation) of the motor 30. Further, the motor 30 is connected with the retractor 20, the webbing 11 is wound on the reel (not shown in the figure) in the corresponding retractor 20, and the motor 30 drives the retractor 20 to push or retract the webbing 11 in response to the control instruction of the control module 40, so as to adjust the height of the tongue plate 12. Specifically, the control module 40 is configured to determine a target occupant who is seated on the seat 300 and does not wear the safety belt 10 matched with the seat 300, and control the motor 30 to drive the retractor 20 to rotate to drive the webbing 11 to move to adjust the height of the tongue plate 12 according to the body posture information of the occupant collected by the occupant monitoring module 70, so as to facilitate the occupant to quickly pull the tongue plate 12. Further, the control module 40 adjusts the height of the tongue plate 12 by executing the safety belt automatic adjustment method provided in the embodiments of the present application, which will be described in detail below. The target seat includes the front seat in the vehicle 1. The control module 40 can be a vehicle controller of the vehicle 1, or can be a microcontroller unit (MCU), a single-chip microcomputer, a digital signal processor (DSP) or other control devices. The retractor 20, the motor 30 and the control module 40 can be arranged in a structural member (for example, a B-pillar) on one side of the seat 300.

[0048] Optionally, the automatic adjustment system 100 further comprises a seat sensor 50 and a buckle sensor 60 which are electrically connected with the control module 40 respectively. The seat sensor 50 is arranged below the cushion of the seat 300, and the seat sensor 50 is configured to detect the load of the seat 300 and output a corresponding load detection signal to the control module 40, so that the control module 40 judges whether the occupant is seated on the seat 300. The buckle sensor 60 is arranged in the buckle 13, and the buckle sensor 60 is configured to detect the locking state of the buckle 13 and output a corresponding locking state detection signal to the control module 40, so that the control module 40 judges whether the tongue plate 12 is inserted into the buckle 13.

[0049] Please refer to Figure 3 , Figure 3 is a flowchart of a safety belt automatic adjustment method provided in the present application, and the safety belt automatic adjustment method specifically comprises the following steps:

[0050] Step 610, when the vehicle 1 is in the starting state, whether there is a passenger seated on the target seat 300 is monitored. If there is a passenger seated on the target seat 300, step 620 is executed, otherwise, return to step 610 to continue monitoring whether there is a passenger seated on the target seat 300.

[0051] Since the safety belt 10 of the front seat 300 in the vehicle 1 is hung on the B pillar, it is convenient to adjust. Therefore, the target seat 300 is preferably the driver's seat and / or the front passenger seat. Of course, in other embodiments, the target seat 300 can also include rear seats.

[0052] Illustratively, the control module 40 can determine whether there is a passenger seated on the target seat 300 based on the load detection signal output by the seat occupancy sensor 50 and / or the image information collected by the passenger monitoring module 70. In the embodiment of the present application, the safety belt automatic adjustment system 100 is automatically started after the vehicle 1 starts, that is, when the vehicle 1 starts, the control module 40 starts to execute the safety belt automatic adjustment method. Alternatively, the passenger can turn off the safety belt automatic adjustment function through the central control PAD (also known as the vehicle controller), so that the control module 40 stops executing the safety belt automatic adjustment method. Alternatively, the control module 40 can also start to execute the safety belt automatic adjustment method when the preset triggering condition is met, otherwise, the safety belt automatic adjustment method is not executed. For example, the preset triggering condition can include but is not limited to at least one of the following conditions: receiving the unlocking signal of the vehicle 1, the passenger opening the door (any door of the vehicle 1), the passenger closing the door, etc. Generally, when the vehicle starts to drive, there will be no passenger getting on the seat, therefore, the control module 40 can only execute step 610 during the vehicle 1 starts to drive, that is, if no passenger is seated on the target seat 300 when the vehicle 1 starts to drive, it can be determined that there will be no passenger seated on the target seat 300, and it will not return to step 610. Therefore, system resources and energy can be saved.

[0053] Step 620, monitoring whether the occupant wears the target seat belt 10 matched with the target seat 300. If it is monitored that the occupant does not wear the target seat belt 10 matched with the target seat 300, step 630 is executed, otherwise, the flow ends. Illustratively, the control module 40 can determine whether the occupant seated on the seat 300 wears the target seat belt 10 based on the load detection signal output by the seating sensor 50 and the buckle state detection signal output by the buckle sensor 60. Of course, the control module 40 can also determine whether the occupant seated on the seat 300 wears the target seat belt 10 based on the image information collected by the occupant monitoring module 70.

[0054] Step 630, obtaining the body posture information of the target occupant collected by the occupant monitoring module 70, wherein the target occupant is the occupant seated on the target seat 300 and does not wear the target seat belt 10 matched with the target seat 300.

[0055] Step 640, controlling the movement of the webbing 11 of the target seat belt 10 according to the body posture information, so as to adjust the tongue plate 12 of the target seat belt 10 to a target height through the webbing 11 of the target seat belt 10. In the embodiment of the present application, the height of an object can be understood as the vertical height relative to the floor of the vehicle 1, and of course, other components can also be used as the reference of the system.

[0056] In an embodiment, the target height includes a first target height. Please refer to Figure 4 , Figure 4 is Figure 3 the first refined flowchart of step 640. The control of the movement of the webbing 11 of the target seat belt 10 according to the body posture information, so as to adjust the tongue plate 12 of the target seat belt 10 to a target height through the webbing 11 of the target seat belt 10, specifically includes:

[0057] Step 641, determining whether the target occupant currently maintains a preset sitting posture according to the body posture information of the target occupant. If it is determined that the target occupant currently maintains a preset sitting posture, step 642 is executed, otherwise, returning to step 630 to continue collecting the body posture information of the target occupant.

[0058] It should be noted that after the target passenger sits on the target seat 300, the target passenger can make various postures, such as sitting straight, turning around, leaning, turning over, bending, standing up, etc. Therefore, after receiving the body posture information, the control module 40 analyzes the received body posture information to determine which body posture the target passenger is currently in. The preset sitting posture includes a sitting straight posture and a sitting posture with a body trunk inclined to the left or right by a small angle. For example, the target passenger sits on the target seat 300, and the inclination angle of the body trunk is within a preset angle range (for example, 10 degrees). In the embodiment of the present application, the frequency of collecting the body posture information of the target passenger by the passenger monitoring module 70 in step 630 can be real-time collection, or collection according to a preset time interval (for example, 10 ms). That is, the control module 40 receives the current body posture information of the target passenger in real time or according to a preset time interval, and analyzes and determines the current body posture information.

[0059] In step 642, the current height of the preset part of the body of the target passenger is determined according to the body posture information, and the webbing 11 of the target safety belt 10 is controlled to move until the tongue plate 12 of the target safety belt 10 is adjusted to the first target height, wherein the first target height is the same as the current height of the preset part of the body of the target passenger. It is found through investigation that most passengers are used to pulling the tongue plate 12 from the same position as the height of their shoulders when wearing the safety belt 10, and therefore, the preset part is preferably the shoulder of the target passenger. Of course, in other embodiments, the preset part can also be adjusted according to the habit of the passenger, for example, the preset part can also be the neck of the target passenger. For example, the tongue plate 12 of the target safety belt 10 can be adjusted to the first target height by the following method: the initial height of the tongue plate 12 is obtained through the image information collected by the passenger monitoring module 70, the height difference between the initial height and the first target height is calculated, and the number of revolutions of the spool of the retractor 20 is calculated according to the height difference, and then the motor 30 is controlled to drive the retractor 20 to rotate according to the number of revolutions, so as to adjust the tongue plate 12 of the target safety belt 10 to the first target height. In the embodiment of the present application, the heights of two objects are the same, which means that the height difference between the two objects is within a preset difference range (for example, 1 cm).

[0060] It can be understood that when it is determined that the target passenger currently maintains the preset sitting posture, the control module 40 controls the movement of the webbing 11 of the target safety belt 10 according to the preset sitting posture, and adjusts the height of the tongue plate 12 of the target safety belt 10 to be the same as the height of the shoulder of the target passenger in the preset sitting posture, so that the passenger can grab the tongue plate 12 near the position of the shoulder when maintaining the preset sitting posture, without turning around to grab, and wearing is convenient.

[0061] In another embodiment, the target height includes a second target height. Please refer to Figure 5 , Figure 5 is Figure 3 a second refinement flowchart of step 640 in FIG. 6. The control of the movement of the webbing 11 of the target safety belt 10 according to the body posture information to adjust the tongue plate 12 of the target safety belt 10 to a target height by the webbing 11 of the target safety belt 10 specifically includes:

[0062] Step 643, determining whether the target passenger grabs the target safety belt 10 according to the body posture information of the target passenger. If it is determined that the target passenger grabs the target safety belt 10, the flow ends, otherwise, step 644 is performed.

[0063] Step 644, determining whether the target passenger has a motion trend of grabbing the target safety belt 10 according to the body posture information of the target passenger acquired within a preset time. If it is determined that the target passenger has a motion trend of grabbing the target safety belt 10, step 645 is performed, otherwise, step 630 is returned. As described above, the frequency of collecting the body posture information of the target passenger by the passenger monitoring module 70 in step 630 can be real-time collection, or can be collection according to a preset time interval (for example, 10 ms), so that the control module 40 can analyze and determine the motion trend of the target passenger according to a plurality of continuous body posture information collected within a certain period of time, for example, the control module 40 can determine whether the target passenger has a motion trend of grabbing the target safety belt 10 according to a plurality of continuous postures of the hand of the target passenger within a period of time from a previous preset time (for example, 30 ms) to the present time.

[0064] Step 645, determining the current height of the hand of the target passenger grabbing the target safety belt 10 according to the body posture information, and controlling the movement of the webbing 11 of the target safety belt 10 until the tongue plate 12 of the target safety belt 10 is adjusted to the second target height, wherein the second target height is the same as the current height of the hand of the target passenger grabbing the target safety belt 10, and step 645 is performed before returning to step 630.

[0065] It can be understood that when it is determined that the target passenger has a motion trend of grabbing the target safety belt 10, the control module 40 controls the movement of the webbing 11 of the target safety belt 10 in real time and quickly according to the current height of the hand of the target passenger grabbing the target safety belt 10, so that the height of the tongue plate 12 is dynamically synchronized with the current height of the hand of the target passenger grabbing the target safety belt 10 until the target passenger grabs the tongue plate 12, so that the passenger can grab the tongue plate 12 with his hand without turning around, and the wearing is convenient.

[0066] In yet another embodiment, the target height includes a first target height and a second target height. Please refer to Figure 6 , Figure 6 is Figure 3 a third refinement flowchart of step 640 in FIG. 6. The controlling the movement of the webbing 11 of the target safety belt 10 to adjust the tongue plate 12 of the target safety belt 10 to a target height by the webbing 11 of the target safety belt 10 according to the body posture information of the target passenger specifically includes:

[0067] Step 646, determining whether the target passenger grabs the target safety belt 10 according to the body posture information of the target passenger. If it is determined that the target passenger grabs the target safety belt 10, the flow ends, otherwise, step 647 is executed.

[0068] Step 647, determining whether the current height of the preset part of the body of the target passenger is the same as the height of the tongue plate 12 of the target safety belt 10. If the current height of the preset part of the body of the target passenger is the same as the height of the tongue plate 12 of the target safety belt 10, step 650 is executed, otherwise, step 648 is executed.

[0069] Step 648, determining whether the target passenger currently maintains a preset sitting posture. If it is determined that the target passenger currently maintains a preset sitting posture, step 649 is executed, otherwise, step 630 is returned.

[0070] Step 649, determining the current height of the preset part of the body of the target passenger according to the body posture information, and controlling the movement of the webbing 11 of the target safety belt 10 until the tongue plate 12 of the target safety belt 10 is adjusted to the first target height.

[0071] Step 650, determining whether the target passenger has a motion trend of grabbing the target safety belt 10 according to the body posture information of the target passenger obtained within a preset time. If it is determined that the target passenger has a motion trend of grabbing the target safety belt 10, step 651 is executed, otherwise, step 630 is returned.

[0072] Step 651, determine the current height of the hand of the target passenger grabbing the target safety belt 10 according to the body posture information, and control the movement of the webbing 11 of the target safety belt 10 until the tongue plate 12 of the target safety belt 10 is adjusted to the second target height, and return to step 630 after step 651 is completed.

[0073] Please refer to Figure 7 , Figure 7 is another flowchart of the safety belt automatic adjustment method provided by the present application, which specifically comprises the following steps:

[0074] Step 660, collect and save the body feature information of the target passenger, and save the first target height corresponding height information. The first target height is the same as the current height of the preset part of the body of the target passenger when maintaining a preset sitting posture.

[0075] Step 670, after the target passenger wears the safety belt, monitor whether the target safety belt 10 is unfastened. If it is monitored that the target safety belt 10 is unfastened, step 680 is performed, otherwise, step 670 is performed again to continue monitoring whether the target safety belt 10 is unfastened. Illustratively, the control module 40 can determine whether the target safety belt 10 is unfastened based on the buckle state detection signal output by the buckle sensor 60. Of course, the control module 40 can also determine whether the target safety belt 10 is unfastened based on the image information collected by the passenger monitoring module 70.

[0076] Step 680, according to the first target height corresponding height information, control the movement of the webbing 11 of the target safety belt 10 until the tongue plate 12 of the target safety belt 11 is adjusted to the first target height.

[0077] Step 690, obtain the body posture information of the target passenger collected by the passenger monitoring module.

[0078] Step 710, determine whether the target passenger grabs the target safety belt 10 according to the body posture information of the target passenger. If it is determined that the target passenger grabs the target safety belt 10, the flow is ended, otherwise, step 720 is performed.

[0079] Step 720, determine whether the target passenger has a trend of grabbing the target safety belt 10 according to the body posture information of the target passenger obtained within a preset time. If it is determined that the target passenger has a trend of grabbing the target safety belt 10, step 730 is performed, otherwise, return to step 690.

[0080] At step 730, the current height of the hand of the target passenger grabbing the target safety belt 10 is determined according to the body posture information, and the webbing 11 of the target safety belt 10 is controlled to move until the tongue plate 12 of the target safety belt 10 is adjusted to the second target height, wherein the second target height is the same as the current height of the hand of the target passenger grabbing the target safety belt 10. After step 730 is performed, the process returns to step 690.

[0081] It can be understood that during the driving of the vehicle 1, the passenger may be uncomfortable due to long sitting, and then unfasten the safety belt to adjust the body position and sitting posture. When the control module 40 monitors that the target safety belt 10 is unfastened, the control module 40 controls the movement of the webbing 11 of the target safety belt 10 until the tongue plate 12 of the target safety belt 11 is adjusted to the first target height, i.e., the tongue plate 12 is adjusted to the height of the preset part (e.g., shoulder) of the passenger to wait for the passenger to pull. In this way, the intelligent level is higher, and the user experience is better.

[0082] Optionally, the safety belt automatic adjustment method further comprises:

[0083] In response to a vehicle engine-off operation, the body feature information of all passengers and the first target height corresponding height information are deleted. In this embodiment, the body feature information of all passengers and the first target height corresponding height information saved by the control module 40 will not be uploaded to the cloud, but will only be retained in the vehicle terminal of the vehicle 1, which is internal data. Therefore, external devices cannot extract these data, thereby avoiding the leakage of personal privacy data of the passengers. When the vehicle 1 is turned off, the control module 40 deletes all the body feature information of the passengers and the first target height corresponding height information saved by the control module 40. In this way, the security of the data can be further improved. Of course, in other embodiments, the control module 40 can also retain the body feature information of the passengers and the first target height corresponding height information. In this way, when the passenger next time rides the vehicle 1, the control module 40 can identify the body feature information of the passenger to directly obtain the height information corresponding to the preset part (e.g., shoulder) of the passenger, thereby controlling the movement of the webbing 11 of the target safety belt 10, and adjusting the tongue plate 12 of the target safety belt 10 to the first target height. In this way, the efficiency is more optimal, and the intelligent level is higher.

[0084] Optionally, the safety belt automatic adjusting method provided by the embodiments of the present application further comprises: after monitoring that the target occupant does not wear a safety belt, controlling the vehicle 1 to perform alarm reminding. Illustratively, the controlling the vehicle 1 to perform alarm reminding comprises at least one of the following modes: controlling the vehicle 1 to emit an alarm sound, controlling the vehicle 1 to emit an alarm light, controlling the seat 300 of the vehicle 1 to vibrate, and controlling the steering wheel of the vehicle 1 to vibrate. Illustratively, the controlling the vehicle 1 to emit an alarm light comprises at least one of the following modes: controlling the atmosphere lamp of the vehicle 1 of a set color (for example, red) to be lighted and continuously flickered, and controlling the illuminating lamp inside the cabin of the vehicle 1 to be lighted and continuously flickered.

[0085] The safety belt automatic adjusting method provided by the embodiments of the present application can conveniently enable the occupant to grab the tongue plate of the target safety belt, and has high intelligent level and can improve user experience.

[0086] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A method for automatically adjusting a seat belt, used to adjust a seat belt on a vehicle seat, the seat belt comprising a webbing and a tongue plate connected to the webbing; characterized in that, The automatic seat belt adjustment method includes: The system acquires body posture information of a target occupant collected by an occupant monitoring module, wherein the target occupant is an occupant seated in a target seat and not wearing a target seatbelt compatible with the target seat; and Based on the body posture information, control the movement of the webbing of the target seat belt to adjust the tongue of the target seat belt to the target height through the webbing of the target seat belt; The target height includes a first target height and / or a second target height dynamically determined based on the body posture information. The first target height is the same as the current height of a preset part of the target occupant's body, and the second target height is the same as the current height of the target occupant's hand gripping the target seat belt.

2. The automatic seat belt adjustment method as described in claim 1, characterized in that, The target height includes a first target height; the step of controlling the movement of the webbing of the target seat belt according to the body posture information, so as to adjust the tongue of the target seat belt to the target height through the webbing of the target seat belt, includes: Based on the target occupant's body posture information, determine whether the target occupant is currently maintaining a preset sitting posture; If it is determined that the target occupant is currently maintaining a preset sitting posture, the current height of a preset part of the target occupant's body is determined based on the body posture information, and the movement of the target seat belt webbing is controlled until the tongue of the target seat belt is adjusted to the first target height.

3. The automatic seatbelt adjustment method as described in claim 1, characterized in that, The target height includes a second target height; the step of controlling the movement of the webbing of the target seat belt according to the body posture information, so as to adjust the tongue of the target seat belt to the target height through the webbing of the target seat belt, includes: Based on the body posture information of the target occupant obtained within a preset time period, it is determined whether the target occupant has a tendency to grab the target seat belt; If it is determined that the target occupant has a tendency to grab the target seat belt, the current height of the target occupant's hand grabbing the target seat belt is determined based on the body posture information, and the movement of the webbing of the target seat belt is controlled until the tongue of the target seat belt is adjusted to the second target height.

4. The automatic seatbelt adjustment method as described in claim 2, characterized in that, The automatic seat belt adjustment method further includes: Collect and save the body characteristic information of the target occupant, and save the height information corresponding to the height of the first target.

5. The automatic seatbelt adjustment method as described in claim 4, characterized in that, The automatic seat belt adjustment method further includes: After the target occupant has put on the target seat belt, monitor whether the target seat belt has been unfastened; If the seat belt is detected to be unfastened, the movement of the webbing of the target seat belt is controlled according to the height information corresponding to the first target height until the tongue of the target seat belt is adjusted to the first target height.

6. The automatic seatbelt adjustment method as described in claim 4, characterized in that, The automatic seat belt adjustment method further includes: In response to the vehicle being turned off, all occupant body characteristic information and the height information corresponding to the first target height are deleted.

7. The automatic seatbelt adjustment method according to any one of claims 1-6, characterized in that, After detecting that the target occupant is not wearing a seat belt, the automatic seat belt adjustment method further includes: Control the vehicle to issue an alarm.

8. An automatic seatbelt adjustment system for adjusting a seatbelt on a vehicle seat, the seatbelt comprising a webbing and a tongue connected to the webbing; characterized in that, The automatic seat belt adjustment system includes a control module and an occupant monitoring module. The control module is electrically connected to the occupant monitoring module and is used to execute the automatic seat belt adjustment method as described in any one of claims 1-7.

9. The automatic seatbelt adjustment system as described in claim 8, characterized in that, The automatic seat belt adjustment system also includes a motor and a retractor for each seat belt, wherein the motor is electrically connected to the control module, and the control module is used to control the working state of the motor; The retractor is connected to the webbing of the corresponding safety belt and the corresponding motor. The motor is used to drive the retractor to rotate during operation, thereby driving the corresponding webbing to move.

10. A vehicle, characterized in that, include: Vehicle body; Seats; as well as The automatic seat belt adjustment system as described in claim 8 or 9, wherein both the automatic seat belt adjustment system and the seat are disposed in the vehicle body.

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