Safety belt system, adjustment method, device, vehicle, medium and program product

Abstract

The invention provides a safety belt system, an adjusting method, equipment, a vehicle, a medium and a program product. The safety belt system comprises a sensor assembly, a belt winder and a processing module. The sensor assembly is connected with the processing module and used for obtaining sitting posture information and abdomen position information of a user and transmitting the sitting posture information and the abdomen position information to the processing module. The processing module is used for generating an adjusting instruction based on the sitting posture information and the abdomen position information; the belt winder is connected with the processing module and used for adjusting the length and tension of the safety belt based on the adjusting instruction. Through the synergistic effect of the sensor assembly and the belt winder, the sensor assembly provides high-precision sitting posture state input for generation of an adjusting instruction through fusion of sitting posture information and abdomen positioning data, so that the safety belt can avoid an abdomen area, and the safety of a user is improved while the abdomen of the user is prevented from being pressed. It is ensured that the safety belt provides enough fixing force in the collision or emergency braking scene, and the safety and comfort of the pregnant woman in the driving scene are remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle safety, in particular to a safety belt system, a regulating method, a device, a vehicle, a medium and a program product. BACKGROUND

[0002] The design of traditional vehicle safety belts is mainly aimed at the body characteristics of non-pregnant users, and its fixing mode is usually a three-point safety belt, including a shoulder strap and a cross strap, wherein the cross strap passes under the abdomen of the user. For users in the pregnancy period, this design has risks: as the abdomen of the user in the pregnancy period gradually increases, the cross strap of the traditional safety belt directly presses the abdominal area, which may pose a threat to the health of the fetus and other serious consequences. In addition, pregnant women frequently adjust their sitting posture during driving due to changes in their body center of gravity, and have higher requirements for the adaptability of safety belts.

[0003] In the prior art, the improvement scheme of the vehicle safety belt for users in the pregnancy period mainly includes two types: by increasing the length of the safety belt or adjusting the path of the safety belt, the safety belt is bypassed around the abdominal area and directly fixed at the root of the thigh. Although this scheme can avoid abdominal compression, it has the problem of fixed point deviation, and the binding force of the safety belt at the root of the thigh is insufficient, which leads to the inability to effectively constrain the torso in the event of a collision or sudden braking, thereby increasing the risk of sliding. Some schemes attempt to increase the additional fixed points, such as auxiliary buckles under the seat, to enhance the fixing effect. However, this scheme relies on manual operation by the driver and cannot adapt to changes in the sitting posture of pregnant women or the increase in the size of the abdomen in real time, and lacks dynamic response capability in emergency conditions.

[0004] Therefore, how to avoid the compression of the safety belt on the abdomen of the pregnant woman while ensuring that the safety belt provides sufficient fixing force in the event of a collision or sudden braking is a problem that needs to be solved at present. SUMMARY

[0005] The embodiments of the present application provide a safety belt system, a regulating method, a device, a vehicle, a medium and a program product to achieve the synergistic effect of dynamic fixing and abdominal avoidance.

[0006] In a first aspect, the embodiments of the present application provide a safety belt system, comprising: a sensor assembly, a belt winder and a processing module;

[0007] The sensor assembly is connected to the processing module and is configured to obtain sitting posture information and abdominal position information of a user, and transmit the sitting posture information and the abdominal position information to the processing module;

[0008] The processing module is configured to generate a regulating instruction based on the sitting posture information and the abdominal position information;

[0009] The belt winder is connected to the processing module and is configured to adjust the length and tension of the safety belt based on the regulating instruction.

[0010] In one embodiment, the belt retractor comprises a driving unit and a tension detection unit;

[0011] The tension detection unit is connected to the processing module and is configured to detect a tension state of the safety belt;

[0012] The processing module is further configured to generate an adjustment instruction based on the tension state;

[0013] One end of the driving unit is connected to the processing module, and the other end of the driving unit is connected to the safety belt; the driving unit is configured to adjust the length and tension of the safety belt based on the adjustment instruction.

[0014] In one embodiment, the safety belt comprises a first shoulder strap, a second shoulder strap, a leg fixing belt, and a waist belt;

[0015] The first shoulder strap and the second shoulder strap are cross-fixed on the seat and the mounting base;

[0016] The waist belt is wound around the abdominal position through a pelvic support buckle and is fixed on the mounting base;

[0017] The leg fixing belt is configured to fix the legs on the mounting base.

[0018] In one embodiment, the safety belt system further comprises a guide buckle assembly, wherein the guide buckle assembly is arranged on the left and right sides below the seat and is configured to guide the safety belt to avoid the abdominal area of the user.

[0019] In one embodiment, the guide buckle assembly comprises a sliding guide rail and a limiting buckle;

[0020] The sliding guide rail extends transversely along the seat, and the limiting buckle is arranged at the end of the sliding guide rail and cooperates with the metal buckle of the safety belt.

[0021] In one embodiment, the limiting buckle comprises a main body and a spring-driven locking mechanism;

[0022] The spring-driven locking mechanism is connected to the main body of the limiting buckle through a compression spring and is automatically locked when the metal buckle of the safety belt slides to the end of the sliding guide rail.

[0023] In one embodiment, the sensor assembly comprises a pressure sensor, an infrared sensor, or an ultrasonic sensor;

[0024] The pressure sensor is embedded in the surface of the seat cushion, and the infrared sensor or the ultrasonic sensor is arranged in the middle of the seat.

[0025] In a second aspect, the embodiments of the present application provide a vehicle comprising a central control interaction system and a safety belt system as described above; the safety belt system is connected to the central control interaction system.

[0026] The central control interaction system is used for displaying state information of the safety belt in real time, and the state information includes tension of the safety belt and avoidance state of the abdominal region.

[0027] In one of the embodiments, the central control interaction system further comprises a voice module, which is used for generating a voice prompt based on the state information of the safety belt to assist the user in operation.

[0028] In a third aspect, the embodiments of the present application provide a safety belt adjusting method, which is applied to any of the above safety belt systems, and comprises the following steps:

[0029] Obtaining sitting posture information and abdominal position information of the user;

[0030] Generating an adjusting instruction based on the sitting posture information and the abdominal position information;

[0031] Adjusting the length and tension of the safety belt by the belt reel based on the adjusting instruction.

[0032] In one of the embodiments, the generating of the adjusting instruction based on the sitting posture information and the abdominal position information comprises the following steps:

[0033] Generating the adjusting instruction based on body shape prediction data of the user in different pregnancy periods and historical data of the sensor, and the adjusting instruction comprises individualized safety belt adjusting parameters.

[0034] In one of the embodiments, the obtaining of the sitting posture information and the abdominal position information of the user comprises the following steps:

[0035] Obtaining sitting posture pressure distribution data of the user by a pressure sensor;

[0036] Obtaining three-dimensional coordinate data of the abdominal region of the user by an infrared sensor;

[0037] Fusing the pressure distribution data and the three-dimensional coordinate data.

[0038] In a fourth aspect, the embodiments of the present application provide a safety belt adjusting device, which comprises a memory and a processor.

[0039] The memory stores computer execution instructions;

[0040] The processor executes the computer execution instructions stored in the memory, so that the processor executes any of the above methods.

[0041] In a fifth aspect, the embodiments of the present application provide a computer readable storage medium, which stores computer execution instructions, and the computer execution instructions are executed by a processor to implement any of the above methods.

[0042] In a sixth aspect, an embodiment of the present application provides a computer program product, comprising a computer program, which, when executed by a processor, implements any of the above methods.

[0043] The safety belt system provided by the embodiment of the present application, the adjusting method, the device, the vehicle, the medium and the program product, the safety belt system comprises a sensor assembly, a belt reel and a processing module; the sensor assembly is connected with the processing module, is used for acquiring sitting posture information and abdominal position information of a user, and transmits the sitting posture information and the abdominal position information to the processing module; the processing module is used for generating an adjusting instruction based on the sitting posture information and the abdominal position information; the belt reel is connected with the processing module, and is used for adjusting the length and tension of the safety belt based on the adjusting instruction. Through the cooperation of the sensor assembly and the belt reel, the dual contradiction of insufficient fixing force and abdominal compression risk of the traditional safety belt in the pregnant woman driving scene is solved, the sensor assembly provides high-precision sitting posture state input for the generation of the adjusting instruction through the fusion of the sitting posture information and the abdominal positioning data; secondly, the adjusting instruction is dynamically generated, so that the safety belt can avoid the abdominal area, avoid the compression of the user's abdomen, ensure that the safety belt provides sufficient fixing force in the collision or emergency braking scene, realize the double insurance of active avoidance and dynamic enhancement of fixing, and significantly improve the safety and comfort of the pregnant woman in the driving scene. BRIEF DESCRIPTION OF DRAWINGS

[0044] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0045] Figure 1 A structural schematic diagram of a safety belt system provided by an embodiment of the present application;

[0046] Figure 2 A front view of a safety belt system provided by an embodiment of the present application;

[0047] Figure 3 A side view of a safety belt system provided by an embodiment of the present application;

[0048] Figure 4 A structural schematic diagram of a safety belt system provided by an embodiment of the present application;

[0049] Figure 5 A structural schematic diagram of a sliding rail, a limiting buckle and a guide buckle assembly provided by an embodiment of the present application;

[0050] Figure 6 A schematic diagram of a vehicle provided by an embodiment of the present application;

[0051] Figure 7 A schematic diagram of a safety belt system and a central control interaction system provided by an embodiment of the present application;

[0052] Figure 8 The flow chart of the safety belt adjusting method provided by an embodiment of the present application is shown in the figure.

[0053] Figure 9 The structural schematic diagram of the safety belt adjusting device provided by the present application is shown in the figure.

[0054] The specific embodiments of the present application have been shown in the above figures, and will be described in more detail hereinafter. These figures and the written description are not intended to limit the scope of the present application in any way, but to illustrate the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0055] The exemplary embodiments will be described in detail herein with reference to the accompanying drawings. The following description is presented with reference to the accompanying drawings, in which the same numbers represent the same or similar elements throughout the several figures. The embodiments described in the following exemplary embodiments are not meant to represent all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the appended claims.

[0056] First, the terms involved in the present application are explained:

[0057] Pressure sensor: refers to a device that converts physical pressure into an electrical signal, such as a resistance pressure sensor that outputs a signal by changing the resistance value under pressure.

[0058] Infrared sensor: refers to a device that measures distance by emitting and receiving reflected signals.

[0059] Prior art: The design of traditional vehicle-mounted safety belts is mainly aimed at the body characteristics of non-pregnant users, and its fixing method is usually a three-point safety belt, with a shoulder strap and a cross strap that passes under the abdomen of the user. For users in the pregnancy period, this design poses a risk: as the abdomen of a user in the pregnancy period gradually increases with the pregnancy period, the cross strap of the traditional safety belt directly presses the abdominal area, which may pose a threat to the health of the fetus and other serious consequences. For users in the pregnancy period, the current improvement scheme for safety belts includes two types: one is to increase the length of the waist belt, which passes the safety belt over the abdominal area and directly fixes it at the root of the thigh. The other is to increase an adjustable buckle on the basis of the standard safety belt, allowing manual adjustment of the waist belt position to avoid the abdomen.

[0060] Disadvantages: Extending the seatbelt only avoids the abdomen through static path adjustment, but its high redundancy leads to insufficient fixation force in a collision; adding auxiliary buckles to optimize fixation relies on manual operation and cannot respond to dynamic needs during driving; considering the application scenario, pregnant women need to frequently adjust their seating position while driving (such as turning, pressing the accelerator or brake), and the fixation points of traditional seatbelts cannot adapt dynamically, leading to the risk of abdominal compression or fixation failure. Therefore, existing technologies cannot simultaneously achieve both effective seatbelt fixation and abdominal protection.

[0061] This application applies to driving scenarios for pregnant users, specifically including: (1) changes in seat belt tightness caused by the adjustment of sitting posture during vehicle operation; (2) dynamic fixation requirements for pregnant women during emergency braking or minor collisions.

[0062] Starting with the core issue of how to achieve active avoidance and dynamic fixation of the abdomen by the seat belt, the inventors have provided a seat belt system that solves the dual contradiction of insufficient fixation force and abdominal pressure risk in traditional seat belts for pregnant women driving scenarios through the synergistic action of sensor components and belt reel. The sensor components provide high-precision sitting posture input for generating adjustment commands by fusing sitting posture information and abdominal positioning data. Secondly, the dynamic generation of adjustment commands ensures that the seat belt avoids the abdominal area, preventing abdominal pressure on the user while ensuring that the seat belt provides sufficient fixation force in collision or emergency braking scenarios. This achieves dual protection of active avoidance and dynamic enhanced fixation, significantly improving the safety and comfort of pregnant women driving.

[0063] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0064] like Figure 1 As shown, Figure 1 This is a schematic diagram of a seat belt system provided in an embodiment of this application. The seat belt system includes: a sensor assembly, a belt reel, and a processing module; the sensor assembly is connected to the processing module and is used to acquire the user's sitting posture information and abdominal position information, and transmit the sitting posture information and abdominal position information to the processing module; the processing module is used to generate adjustment commands based on the sitting posture information and abdominal position information; the belt reel is connected to the processing module and is used to adjust the length and tension of the seat belt based on the adjustment commands.

[0065] This application addresses the dual contradiction of insufficient restraint and abdominal pressure risk posed by traditional seat belts in driving scenarios for pregnant women through the synergistic effect of sensor components and seat belt reel. The sensor components provide high-precision sitting posture input for generating adjustment commands by fusing sitting posture information with abdominal positioning data. Secondly, the dynamic generation of adjustment commands ensures that the seat belt avoids the abdominal area, preventing abdominal pressure while ensuring sufficient restraint in collision or emergency braking scenarios. This achieves dual protection of active avoidance and dynamic enhanced restraint, significantly improving the safety and comfort of pregnant women in driving scenarios.

[0066] In one embodiment, the seat belt includes a first shoulder strap, a second shoulder strap, a leg restraint strap, and a lap belt; the first and second shoulder straps are cross-secured to the seat and the mounting base; the lap belt passes over the abdomen via a pelvic support buckle and is secured to the mounting base; the leg restraint strap is used to secure the legs to the mounting base.

[0067] like Figure 2 As shown, Figure 2 This is a front view of a seatbelt system provided according to an embodiment of this application. Figure 3 As shown, Figure 3 This is a side view of a seatbelt system provided according to an embodiment of this application. (In conjunction with...) Figure 2 , Figure 3 The seat belt in this application uses a four-point fixing method, while traditional seat belts use a three-point method, including shoulder straps, lap belts, pelvic support buckles, leg restraint straps, and mounting bases to secure the user's body to the seat. Specifically, the shoulder straps pass through the shoulder, with the first and second shoulder straps crossing and securing to the seat to stabilize the user's upper body; the lap belt wraps around the user's abdomen to provide abdominal support; the pelvic support buckle is located in the pelvic area to ensure pelvic stability; the leg restraint straps wrap around the thighs to secure the legs; and the mounting base secures the entire device to the chair.

[0068] In one embodiment, the pelvic support buckle is a portable fastening mechanism.

[0069] In one embodiment, the sensor assembly includes a pressure sensor and an infrared sensor; the pressure sensor is embedded in the surface of the seat cushion, and the infrared sensor is located in the center of the seat.

[0070] In one embodiment, the sensor assembly also includes an ultrasonic sensor.

[0071] Posture information includes pressure distribution information. For example, when a pregnant woman gets into the car, the pressure sensor detects concentrated pressure in the groin area, and the infrared sensor scans and finds that the abdomen is located slightly to the left of the center line of the seat. The data is fed back to the processing module, which generates a three-dimensional coordinate mapping map.

[0072] Specifically, dynamic adjustment is achieved through the collaborative work of multiple sensors. When the pregnant woman sits down, pressure sensors detect changes in posture, infrared or ultrasonic sensors scan the abdominal position, and transmit the data to the processing module. The processing module, combined with a preset ergonomic model, calculates the optimal avoidance path and tension value of the seat belt, generates adjustment commands, and sends them to the belt reel.

[0073] In one embodiment, the reel includes a drive unit and a tension detection unit; the tension detection unit is connected to a processing module and is used to detect the tension state of the seat belt; the processing module is also used to generate adjustment commands based on the tension state; one end of the drive unit is connected to the processing module, and the other end of the drive unit is connected to the seat belt; the drive unit is used to adjust the length and tension of the seat belt based on the adjustment commands.

[0074] Specifically, the drive unit drives the reel to adjust the lap belt length, ensuring the seat belt wraps around the abdomen and fits snugly against the groin. Simultaneously, the tension detection unit provides real-time tension data to ensure adequate restraint. During driving, the sensor assembly continuously monitors changes in posture and abdominal position, dynamically fine-tuning the seat belt length and tension to ensure comfort. Furthermore, in the event of sudden braking or a collision, the seat belt is tightened first, and the reel is locked to prevent forward torso thrust. Additionally, the guide buckle assembly's limiting buckle prevents seat belt slippage, achieving active protection.

[0075] In one embodiment, the drive unit is an electric motor.

[0076] In one embodiment, the seat belt system further includes a guide buckle assembly located on the left and right sides below the seat to guide the seat belt away from the user's abdominal area.

[0077] Specifically, the guide buckle assembly, fixed under the seat, adjusts the abdominal section of the seatbelt from the traditional path (center of the abdomen) to the groin area, achieving physical path avoidance. The reel's drive unit is mechanically connected to the seatbelt reel, dynamically adjusting the reel length based on the tension value fed back by the tension detection unit. Specifically, when the tension detection unit detects abnormal seatbelt tension, such as an imbalance caused by changes in posture, the drive unit drives the reel to rotate via a gear set, adjusting the seatbelt length to restore the target tension. The guide buckle assembly and the reel, through a mechanical connection—such as the linkage between the guide rail and the reel—achieve coordinated control of the seatbelt path and tension, ensuring the seatbelt always fits snugly against the groin and chest / shoulder areas.

[0078] In one embodiment, the processing module is a central processing unit.

[0079] like Figure 4 As shown, Figure 4This is a schematic diagram of a seatbelt system provided in one embodiment of this application. The figure shows a seatbelt system specifically designed for pregnant women. This system monitors pressure in the pregnant woman's abdomen and pelvic region using multiple sensor components to provide more precise safety protection. The system includes shoulder straps, a pregnant woman's abdominal pressure sensor assembly, a pelvic support buckle, a pelvic region pressure sensor assembly, leg restraint straps, and buckles. An intelligent reel, connected to the shoulder straps and leg restraint straps, controls the tension of the seatbelt to ensure proper fastening. Sensor signal lines transmit data to a central processing unit, which is responsible for data analysis and control to intelligently adjust the operation of the reel. The entire system is powered through the vehicle's power interface, ensuring additional safety for pregnant women while the vehicle is in motion. The design in this application not only meets the needs of different users but also improves the safety of pregnant women in vehicles.

[0080] This application resolves the contradiction between traditional seat belts' abdominal compression and insufficient restraint by combining the physical path avoidance of the guide buckle assembly with the dynamic tension adjustment of the reel. The guide rail structure of the guide buckle assembly mechanically fixes the abdominal section of the seat belt to the groin, eliminating the risk of abdominal compression. The closed-loop control logic of the drive unit and tension detection unit ensures that the seat belt tension is always within the target range, avoiding restraint failure due to excessive looseness and reducing comfort due to excessive tightness. In collision or emergency braking scenarios, the drive unit prioritizes tightening the seat belt and locking the reel, working in conjunction with the limiting function of the guide buckle assembly to prevent seat belt slippage or loosening, thus achieving a balance between torso restraint and abdominal protection. This structural design, through the combination of physical path avoidance and dynamic adjustment, provides a solution that combines safety and comfort for pregnant women driving.

[0081] In one embodiment, the guide buckle assembly includes a sliding guide rail and a limiting buckle; the sliding guide rail extends laterally along the seat, and the limiting buckle is located at the end of the sliding guide rail and engages with the metal fastener of the seat belt.

[0082] Specifically, such as Figure 5 As shown, Figure 5 This is a schematic diagram of the slide rail, limiting buckle, and guide buckle assembly provided in one embodiment of this application. The slide rail is a linear track structure used to guide the seat belt path, such as a U-shaped groove made of metal or polymer material, which provides a movement trajectory for the seat belt. The limiting buckle is a mechanical structure used to fix the end of the seat belt. The slide rail extends along the lateral direction of the seat, and the metal buckle of the seat belt slides along the rail to adjust the path. The limiting buckle is located at the end of the rail and engages with the metal buckle through a spring locking mechanism to ensure that the seat belt is fixed in the thigh area after adjustment. The mechanical cooperation between the slide rail and the limiting buckle ensures that the seat belt path remains stable during dynamic adjustment, and at the same time, prevents slippage through the locking function during collision or sudden braking.

[0083] This application utilizes a mechanical limiting design with sliding guide rails and limit buckles to ensure that the seat belt path remains fixed after adjustment, avoiding the risk of slippage due to inertia. The locking function of the limit buckles prioritizes locking the seat belt in emergency situations, enhancing the stability of the restraint force. At the same time, the linear trajectory design of the sliding guide rails makes the seat belt fit more precisely, further improving the abdominal avoidance effect.

[0084] In one embodiment, the limiting buckle includes a main body and a spring-driven locking mechanism; the spring-driven locking mechanism is connected to the limiting buckle main body via a compression spring and automatically locks when the metal buckle of the seat belt slides to the end of the sliding guide rail.

[0085] Specifically, the spring-driven locking mechanism is a mechanical structure that achieves automatic locking through spring force, such as a linkage device containing a compression spring and engaging teeth, its function being to prevent seat belt slippage. When the metal buckle of the seat belt slides to the end along the sliding guide rail, the spring-driven locking mechanism uses the elastic potential energy of the compression spring to drive the engaging teeth to engage with the metal buckle, achieving automatic locking. In collision or emergency braking scenarios, the locking mechanism is activated first to prevent the seat belt from slipping due to inertia. This application, through the automatic activation mechanism of the spring-driven locking mechanism, ensures that the seat belt immediately enters the locking state after adjustment, improving the response speed in emergency situations; at the same time, the mechanical design of the locking mechanism achieves reliable fixation without external energy, enhancing the stability and reliability of the device.

[0086] like Figure 6 As shown, Figure 6 The diagram below illustrates a vehicle according to an embodiment of this application. The vehicle includes a central control interaction system and any of the aforementioned seat belt systems. The seat belt system is connected to the central control interaction system. The central control interaction system is used to display the status information of the seat belt in real time, including the tension of the seat belt and the avoidance status of the abdominal area.

[0087] In one embodiment, the central control interaction system further includes a voice module, which generates voice prompts based on the seat belt status information to assist user operation.

[0088] Specifically, such as Figure 7 As shown, Figure 7This is a schematic diagram of a seatbelt system and a central control interaction system provided in an embodiment of this application. The seatbelt system includes a seatbelt adjustment device, which includes a tension sensor and a leg avoidance sensor. The central control interaction system refers to a display and interaction module integrated into the vehicle's central control screen, such as a touch screen and a voice prompt device, used to provide seatbelt status information and user guidance. The central control interaction system receives seatbelt status signals from a data processing unit via an electrical connection and displays the seatbelt tension and abdominal avoidance status in real time on the vehicle's central control screen; the voice module provides real-time prompts through the audio system to assist the driver in adjusting their seating posture. This application enhances the user's perception of the seatbelt status through the visualization and voice guidance functions of the central control interaction system; secondly, real-time display and voice prompts assist the driver in optimizing their seating posture and operation, enhancing the ease of use and safety of the device.

[0089] like Figure 8 As shown, Figure 8 This is a flowchart illustrating a seatbelt adjustment method according to an embodiment of this application. Applied to any of the above-described seatbelt systems, the seatbelt adjustment method includes the following steps:

[0090] Step S801: Obtain the user's sitting posture information and abdominal position information.

[0091] Specifically, the sensor module, such as the pressure sensor and the infrared sensor, first collects the pregnant woman's sitting posture information and abdominal position information in real time, such as pressure distribution values ​​and three-dimensional coordinates, and then transmits this information to the processing module.

[0092] Step S802: Generate adjustment instructions based on sitting posture information and abdominal position information.

[0093] Specifically, the processing module analyzes the seat belt path avoidance requirements based on sitting posture information and abdominal position information through adjustment algorithms, and generates adjustment instructions.

[0094] In one embodiment, the adjustment algorithm is a fuzzy control algorithm. The fuzzy control algorithm uses the degree of abdominal offset as an input variable and, through a fuzzy rule base (e.g., if the user's sitting posture offset is large, the motor accelerates on the left side), generates seatbelt path adjustment instructions to ensure the seatbelt path avoids the abdominal area. Other algorithms may be used in other examples, and this application does not limit them.

[0095] Step S803: Based on the adjustment command, dynamically adjust the length and tension of the safety belt through the reel.

[0096] Specifically, the drive unit in the reel dynamically adjusts the length and tension of the seat belt according to the adjustment command, ensuring that the seat belt avoids the abdominal area and maintains a fixing force.

[0097] This application addresses the dual challenges of insufficient restraint and abdominal pressure risk posed by traditional seat belts in pregnant women's driving scenarios through the synergistic effect of sensors, adjustment algorithms, and a reel. Sensors provide high-precision seating posture input to the adjustment algorithm by fusing pressure distribution and abdominal positioning data. The adjustment algorithm, based on fuzzy control logic, dynamically generates seat belt path adjustment commands to ensure the seat belt avoids the abdominal area. The drive unit, through precise execution of the electric motor, ensures sufficient restraint force in collision or emergency braking scenarios. For example, when the pregnant woman's abdomen shifts to one side, the adjustment algorithm can calculate the avoidance path in real time and adjust the seat belt length and tension through the drive unit, avoiding abdominal pressure while maintaining restraint. This achieves the dual goals of active avoidance and dynamic enhanced restraint, significantly improving safety and comfort in pregnant women's driving scenarios.

[0098] In one embodiment, step S802 specifically includes the following steps:

[0099] Based on the user's body shape prediction data at different stages of pregnancy and historical data from sensors, adjustment instructions are generated, including personalized seat belt adjustment parameters.

[0100] Specifically, personalized adjustment parameters are generated using body shape prediction models or historical data. For example, the body shape prediction model predicts the trend of body shape changes in the later stages based on the pregnant woman's historical abdominal contour data and dynamically adjusts the seat belt avoidance strategy; historical data is used to generate personalized parameters (such as pressure thresholds). This application actively adjusts the seat belt path to avoid compression, while optimizing the balance between fixation force and comfort through personalized parameters, significantly improving the adaptability for long-term use and reducing the need for frequent manual adjustments by pregnant women due to changes in body shape.

[0101] In one embodiment, step S801 specifically includes the following steps:

[0102] The pressure distribution data of the user's sitting posture is obtained through pressure sensors.

[0103] The infrared sensor acquires the three-dimensional coordinate data of the user's abdominal area.

[0104] The pressure distribution data and three-dimensional coordinate data are fused together.

[0105] Specifically, by collaboratively acquiring data from pressure sensors and infrared sensors, the system generates data on the sitting pressure distribution and three-dimensional abdominal coordinates. A multimodal sensor fusion module weights and processes this data to generate a high-precision description of the sitting posture, ensuring the accuracy and real-time performance of seatbelt path adjustments. This example provides more comprehensive data support for dynamic seatbelt adjustment, further reducing the risk of abdominal pressure while enhancing the stability of the fixing force in collision scenarios.

[0106] This application provides a seatbelt adjustment device, including: a memory and a processor;

[0107] The memory stores instructions that the computer executes;

[0108] The processor executes computer execution instructions stored in memory, causing the processor to perform any of the methods described above.

[0109] Figure 9 This is a structural schematic diagram of the seat belt adjustment device provided in this application. Figure 9 As shown, the seat belt adjustment device 900 provided in this embodiment includes at least one processor 901 and a memory 902. Optionally, the seat belt adjustment device 900 further includes a communication component 903. The processor 901, memory 902, and communication component 903 are connected via a bus 909.

[0110] In a specific implementation, at least one processor 901 executes computer execution instructions stored in memory 902, causing at least one processor 901 to perform the above-described method.

[0111] The specific implementation process of processor 901 can be found in the above method embodiments, and its implementation principle and technical effect are similar. It will not be repeated here.

[0112] In the above embodiments, it should be understood that the processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), etc. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in this invention can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules within the processor.

[0113] The memory may include random access memory (RAM) and may also include non-volatile memory (NVM), such as at least one disk storage device.

[0114] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of illustration, the buses shown in the accompanying drawings are not limited to a single bus or a single type of bus.

[0115] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the above-described method.

[0116] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the above-described method.

[0117] The aforementioned readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.

[0118] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can reside in an application-specific integrated circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in the device.

[0119] The division of units is merely a logical functional division; in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0120] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0121] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0122] If a function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0123] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0124] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A seatbelt system, characterized in that, include: Sensor components, tape reel, and processing module; The sensor assembly is connected to the processing module and is used to acquire the user's sitting posture information and abdominal position information, and transmit the sitting posture information and abdominal position information to the processing module. The processing module is used to generate adjustment instructions based on the sitting posture information and abdominal position information; The tape reel is connected to the processing module and is used to adjust the length and tension of the seat belt based on the adjustment command.

2. The seatbelt system according to claim 1, characterized in that, The tape reel includes a drive unit and a tension detection unit; The tension detection unit is connected to the processing module and is used to detect the tension state of the seat belt; The processing module is also used to generate adjustment commands based on the tension state; One end of the drive unit is connected to the processing module, and the other end of the drive unit is connected to the seat belt; The drive unit is used to adjust the length and tension of the seat belt based on the adjustment command.

3. The seatbelt system according to claim 2, characterized in that, The seat belt includes a first shoulder strap, a second shoulder strap, a leg restraint strap, and a lap belt; The first shoulder strap and the second shoulder strap are cross-fixed to the seat and the mounting base; The belt passes around the abdomen via a pelvic support buckle and is fixed to the mounting base; The leg securing strap is used to secure the legs to the mounting base.

4. The seat belt system according to any one of claims 1-3, characterized in that, The seat belt system also includes a guide buckle assembly, which is located on the left and right sides under the seat to guide the seat belt away from the user's abdominal area.

5. The seatbelt system according to claim 4, characterized in that, The guide buckle assembly includes a sliding guide rail and a limiting buckle; The sliding guide rail extends laterally along the seat, and the limiting buckle is located at the end of the sliding guide rail and cooperates with the metal buckle of the seat belt.

6. The seatbelt system according to claim 5, characterized in that, The limiting buckle includes a main body and a spring-driven locking mechanism; The spring-driven locking mechanism is connected to the limiting buckle body via a compression spring, and automatically locks when the metal buckle of the seat belt slides to the end of the sliding guide rail.

7. The seatbelt system according to claim 1, characterized in that, The sensor assembly includes a pressure sensor, an infrared sensor, or an ultrasonic sensor; The pressure sensor is embedded in the surface of the seat cushion, and the infrared sensor or the ultrasonic sensor is located in the middle of the seat.

8. A vehicle, characterized in that, It includes a central control interaction system and a seat belt system as described in any one of claims 1-7; the seat belt system is connected to the central control interaction system; The central control system is used to display the status information of the seat belt in real time, including the tension of the seat belt and the avoidance status of the abdominal area.

9. The vehicle according to claim 8, characterized in that, The central control interaction system also includes a voice module, which generates voice prompts based on the status information of the seat belt to assist the user in operation.

10. A seatbelt adjustment method, applied to the seatbelt system according to any one of claims 1-7, characterized in that, include: Obtain the user's sitting posture and abdominal position information; Based on the sitting posture information and the abdominal position information, an adjustment command is generated; Based on the adjustment command, the length and tension of the seat belt are dynamically adjusted by the reel.

11. The method according to claim 10, characterized in that, The step of generating adjustment instructions based on the sitting posture information and the abdominal position information specifically includes: Based on the user's body shape prediction data at different stages of pregnancy and historical data from sensors, adjustment instructions are generated, including personalized seat belt adjustment parameters.

12. The method according to claim 10, characterized in that, The acquisition of the user's sitting posture information and abdominal position information specifically includes: Data on the pressure distribution of the user's sitting posture is obtained through pressure sensors; The user's abdominal region is acquired using an infrared sensor; The pressure distribution data and three-dimensional coordinate data are fused together.

13. A seatbelt adjustment device, characterized in that, include: Memory, processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory, causing the processor to perform the method as described in any one of claims 10-12.

14. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the method as described in any one of claims 10-12.

15. A computer program product, characterized in that, Includes a computer program that, when executed by a processor, implements the method described in any one of claims 10-12.

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