Vehicle seat use state detection method and system, vehicle and electronic equipment

Abstract

The invention discloses a vehicle seat use state detection method and system, a vehicle and electronic equipment, and relates to the technical field of engines. According to the method, when it is determined that an obtained bearing signal is larger than 0, a feedback signal is obtained, in other words, a braid detection device installed at an outlet of a safety belt retractor of a vehicle detects a signal returned by a safety braid, the safety braid is formed by connecting multiple sections, and the signals, detected by the braid detection device, returned by all the sections have differences; and meanwhile, the first preset corresponding relation representing the corresponding relation between the feedback signal and the pull-out length of the safety braid is set, so that the use state of the vehicle seat corresponding to the safety braid is determined based on the feedback signal and the first preset corresponding relation. Therefore, the problems that when a pressure sensor and other sensors are matched with a lock catch to detect whether the use state of the vehicle seat is in compliance or not, the detection accuracy is low, the cost is high, and the detection scene coverage is incomplete are solved.

Description

Technical Field

[0001] The present application relates to the field of automotive technology, and more specifically, to a method and system for detecting the usage status of a vehicle seat, a vehicle, and electronic equipment. Background Art

[0002] Currently, there are many non-compliant behaviors regarding the use of vehicle seats. For example, riding without wearing a seat belt, wearing a seat belt but not wrapping around the body, using a child safety seat on a seat equipped with a front airbag, and using a child under 12 years old without a child safety seat.

[0003] Several methods are primarily used to detect vehicle seat usage. One involves installing a pressure sensor on the seat. When someone sits, the sensor detects pressure changes, thereby determining whether the seat is occupied. The sensor then checks whether the seatbelt tongue is inserted into the buckle to determine if the seatbelt is properly used. However, this method is susceptible to spoofing, for example, by using a separate, fake tongue inserted into the buckle. Another method involves installing an infrared sensor near the seat. When someone sits, the infrared sensor detects the body's heat signature, thereby determining whether the seatbelt is occupied. The sensor then checks whether the seatbelt tongue is inserted into the buckle to determine if the seatbelt is properly used. However, this method has the disadvantages of being susceptible to interference from ambient temperature and light, being costly, and being susceptible to spoofing when a fake tongue is inserted into the buckle. Finally, a tension sensor is installed on the seatbelt buckle or tongue. When the seatbelt is pulled out and around a person, the tension sensor detects changes in tension, thereby determining if the seatbelt is properly used. The disadvantage of this method is that the tension sensor is easily disturbed by fluctuations in the seat belt tension and, in some cases, may not accurately determine whether the seat belt is used correctly. Furthermore, none of the above methods can detect improper placement of child safety seats.

[0004] It can be seen that when the currently commonly used methods are used to detect whether the vehicle seat usage status is compliant, there are not only problems of low detection accuracy and high cost, but also problems such as incomplete coverage of detection scenarios. Summary of the Invention

[0005] In view of this, the embodiments of the present application are committed to providing a method, system, vehicle and electronic device for detecting the usage status of a vehicle seat, so as to solve the problems of low detection accuracy, high cost and incomplete detection scenario coverage when using sensors such as pressure sensors in conjunction with locks to detect whether the usage status of a vehicle seat is compliant.

[0006] In a first aspect, the present invention provides a method for detecting a vehicle seat usage status, comprising:

[0007] Acquire a load-bearing signal, wherein the load-bearing signal is pressure data returned by a pressure detection device installed at a vehicle seat;

[0008] Determine whether the load-bearing signal is greater than 0;

[0009] After determining that the load-bearing signal is greater than 0, obtaining a feedback signal, wherein the feedback signal is a signal returned by a webbing detection device installed at an outlet of a seat belt retractor of the vehicle after detecting the seat belt;

[0010] The safety webbing is composed of multiple connected sections, and the signals returned by the webbing detection device after detection of each section of the safety webbing are different;

[0011] Based on the feedback signal and a first preset correspondence, the usage status of the vehicle seat corresponding to the safety belt is determined. The first preset correspondence is the correspondence between the feedback signal and the pulled-out length of the safety belt. The usage status includes compliant usage and non-compliant usage.

[0012] In a possible implementation, determining the usage status of the vehicle seat corresponding to the safety belt based on the feedback signal and the first preset correspondence includes:

[0013] determining an actual extended length of the safety belt based on the feedback signal and the first preset correspondence;

[0014] Determining the preset length range within which the actual pulled-out length falls;

[0015] When the actual extended length is within a first preset length range, determining that the vehicle seat is in a non-compliant state of use and triggering a corresponding preset reminder signal;

[0016] Wherein, the preset reminder signal includes: a first reminder signal and a second reminder signal;

[0017] The first reminder signal is generated when the actual pulled-out length is within a second preset length range, and is used to indicate that the safety webbing corresponding to the vehicle seat has not been pulled out;

[0018] The second reminder signal is generated when the actual pulled-out length is within a third preset length range, indicating that the pulled-out length of the safety belt has not reached a preset required length, wherein the preset required length is the minimum length required for the safety belt to be pulled out and pass around the body of a driver and passenger sitting on the vehicle seat;

[0019] The upper limit of the second preset length range is smaller than the lower limit of the third preset length range.

[0020] In a possible implementation, the vehicle seat usage status detection method further includes:

[0021] determining an actual load bearing of the vehicle seat based on the load bearing signal;

[0022] The usage state of the vehicle seat is determined based on the actual load-bearing, the actual pulled-out length, and a second preset corresponding relationship, where the second preset corresponding relationship is a corresponding relationship between the weight of the driver and the pulled-out length of the safety belt.

[0023] In a possible implementation, determining the usage state of the vehicle seat based on the actual load-bearing capacity, the actual extended length, and a second preset corresponding relationship includes:

[0024] When the actual pulled-out length is within a fourth preset length range, a target weight range corresponding to the actual pulled-out length is determined in the second preset relationship, and a lower limit value of the fourth preset length range is greater than an upper limit value of the first preset length range;

[0025] determining whether the actual weight-bearing capacity is within the target weight range;

[0026] When the actual load-bearing capacity is outside the target weight range, determining that the vehicle seat is in an unqualified state and triggering the corresponding preset reminder signal;

[0027] Wherein, the preset reminder signal includes: a third reminder signal;

[0028] The third reminder signal is generated when the actual load is outside the target weight range, and is used to indicate that a first object is placed on the vehicle seat.

[0029] In a possible implementation, determining the usage state of the vehicle seat based on the actual load-bearing capacity, the actual extended length, and a second preset corresponding relationship further includes:

[0030] When the actual extended length is within a fifth preset length range, obtaining a seating requirement of the vehicle seat, wherein a lower limit value of the fifth preset length range is greater than an upper limit value of the fourth preset length range;

[0031] Based on the seating requirement, determining whether the vehicle seat allows placement of a child safety seat;

[0032] When it is determined that the vehicle seat does not allow the placement of a child safety seat, or when the vehicle seat allows the placement of a child safety seat and the actual load-bearing capacity is outside the target weight range agreed upon in the second preset correspondence, determining that the usage status of the vehicle seat is non-compliant and triggering the corresponding preset reminder signal;

[0033] Wherein, the preset reminder signal includes: a fourth reminder signal and a fifth reminder signal;

[0034] The fifth reminder signal is generated when the vehicle seat does not allow the placement of a child safety seat, and is used to indicate that a child safety seat is placed on the vehicle seat;

[0035] The sixth reminder signal is generated when the vehicle seat allows a child safety seat to be placed and the actual load-bearing capacity is outside the target weight range agreed upon by the second preset correspondence, and is used to indicate that a second object is placed on the vehicle seat.

[0036] In a possible implementation, the feedback signal is an optical signal.

[0037] In a second aspect, the present invention provides a vehicle seat usage status detection system, comprising: a safety webbing, a pressure detection device, a webbing detection device and a detection unit; wherein,

[0038] The safety webbing is composed of multiple connected sections, and the signals returned by the webbing detection device after detection of each section of the safety webbing are different;

[0039] The pressure detection device is installed at the vehicle seat and is used to detect the weighing data of the vehicle seat and generate a weighing signal;

[0040] The webbing detection device is installed at the exit of the seat belt retractor of the vehicle, and is used to send a detection signal to the seat belt and receive the returned detection signal to generate a feedback signal;

[0041] The detection unit is used to receive the weighing signal and, after determining that the load-bearing signal is greater than 0, obtain the feedback signal, and determine the usage status of the vehicle seat corresponding to the safety belt based on the feedback signal and a first preset correspondence. The first preset correspondence is the correspondence between the feedback signal and the pulled-out length of the safety belt. The usage status includes compliant use and non-compliant use.

[0042] In a possible implementation, the webbing detection device is a photoelectric detection device, which emits detection light to illuminate the safety webbing and generates the feedback signal based on a light signal reflected back by the safety webbing.

[0043] In a third aspect, the present invention provides a vehicle, comprising a vehicle body and the vehicle seat usage status detection system provided in the second aspect of the present invention.

[0044] In a fourth aspect, the present invention provides an electronic device, comprising:

[0045] processor;

[0046] a memory for storing instructions executable by the processor;

[0047] The processor is used to execute the vehicle seat usage status detection method provided by the first aspect of the present invention.

[0048] The vehicle seat usage status detection method provided by the present invention obtains a feedback signal when it is determined that the acquired load-bearing signal is greater than 0, that is, when it is determined that a person or object is on the vehicle seat. This is the signal returned by a webbing detection device installed at the exit of the vehicle's seatbelt retractor after detecting the safety webbing. The safety webbing is composed of multiple connected sections, and the signals returned by the webbing detection device after detection of each section are different. A first preset correspondence is also set to represent the correspondence between the feedback signal and the extended length of the safety webbing. This allows the extended length of the safety webbing to be determined based on the feedback signal, thereby determining the vehicle seat usage status corresponding to the safety webbing based on the feedback signal and the first preset correspondence. In other words, by detecting the vehicle seat usage status based on the extended length of the safety webbing, the detection accuracy and detection scenario coverage are effectively improved while reducing usage costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.

[0050] Figure 1 FIG2 is a flow chart of a method for detecting the use status of a vehicle seat provided by an embodiment of the present invention;

[0051] Figure 2 FIG2 is a structural diagram of an example of a method for detecting the use status of a vehicle seat provided by an embodiment of the present invention;

[0052] Figure 3 It is a flow chart showing the use status detection method of a vehicle seat provided by an embodiment of the present invention;

[0053] Figure 4 FIG2 is a structural diagram of a vehicle seat usage status system provided by an embodiment of the present invention;

[0054] Figure 5 FIG2 is a schematic structural diagram of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0055] Unless otherwise defined, technical or scientific terms used in the embodiments of this specification should have the same ordinary meaning as those understood by persons of ordinary skill in the art to which this specification pertains. The terms "first," "second," and similar terms used in the embodiments of this specification do not denote any order, quantity, or importance, but are provided solely to avoid confusion between constituent elements.

[0056] Unless the context requires otherwise, throughout this specification, the term "plurality" means "at least two," and "including" is to be interpreted as open and inclusive, meaning "including, but not limited to." Throughout this specification, the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic associated with the embodiment or example is included in at least one embodiment or example of this specification. The schematic representations of these terms do not necessarily refer to the same embodiment or example.

[0057] The following will be combined with the drawings in the embodiments of this specification to clearly and completely describe the technical solutions in the embodiments of this specification. Obviously, the embodiments described are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this specification.

[0058] Understandably, the traditional method for detecting compliance with vehicle seat usage is to determine if a weight has been added to the vehicle seat and then check whether the corresponding seat belt tongue is inserted into the buckle. Clearly, this detection method cannot accurately detect non-compliant behaviors such as inserting a separate tongue into the buckle or inserting the seat belt directly into the buckle without passing it around the body. Furthermore, it cannot effectively detect non-compliant behaviors such as children under 12 sitting in the passenger seat, objects placed in the passenger seat, or child safety seats installed. To address these issues, new detection methods have emerged, such as using cameras to identify whether seat occupants are correctly using seat belts, and employing multi-sensor fusion technologies such as pressure sensors and infrared sensors. However, while camera-based detection can identify objects placed on the seat and the age of the passenger, it is susceptible to factors such as interior lighting and the color of the driver's clothing, leading to incorrect seat belt identification and misjudgment. Furthermore, the high cost of multi-sensor fusion technology prevents widespread adoption.

[0059] The present invention aims to solve the above-mentioned problem by utilizing a webbing detection device installed at the outlet of the vehicle's seat belt retractor to detect the safety webbing composed of multiple connected sections, and to determine the pulled-out length of the safety webbing, thereby realizing accurate detection of whether the vehicle seat usage status is compliant using the pulled-out length of the safety webbing.

[0060] Furthermore, the vehicle seat usage status detection method provided by the present invention is executed on an electronic device, which can be a control feedback unit connected to the vehicle controller, or the vehicle controller itself, or an intelligent terminal such as a laptop computer remotely connected to the vehicle controller, or a network-side server.

[0061] Based on the above, see Figure 1 , Figure 1 This is a flow chart of a method for detecting the use status of a vehicle seat provided by an embodiment of the present invention. Figure 1 As shown, the process of the method may include:

[0062] S100: Obtain a load-bearing signal.

[0063] The load-bearing signal is pressure data returned by a pressure detection device installed on the vehicle seat.

[0064] It is understandable that the pressure detection device can be any sensor that can sense weight changes, such as a pressure sensor, a weight sensor, etc., and is not specifically limited here.

[0065] Specifically, by installing a pressure detection device at the vehicle seat, real-time detection of the driver or objects placed on the vehicle seat can be achieved through the pressure changes detected by the pressure detection device.

[0066] S110: Determine whether the load-bearing signal is greater than 0.

[0067] Specifically, when the vehicle seat is empty, the weighing signal detected by the pressure detection device can be set to 0. When someone or an object is placed on the vehicle seat, the pressure detected by the pressure detection device increases. At this time, by determining whether the weighing signal is greater than 0, it can be accurately determined whether an object is placed or a person is sitting on the vehicle seat.

[0068] It is understood that the purpose of determining whether the load signal is greater than 0 is to determine whether a person is sitting on the vehicle seat through pressure changes. Therefore, to prevent the pressure detection device from returning a load signal greater than 0 even when a user places a lightweight item, such as a backpack, on the vehicle seat, the pressure detection device can be configured to only return a load signal greater than 0 when the weight corresponding to the pressure change is greater than a certain value, thereby improving the practicality of the detection method provided by this embodiment.

[0069] S120: After determining that the load-bearing signal is greater than 0, obtain a feedback signal.

[0070] The feedback signal is a signal returned by a webbing detection device installed at the exit of the seat belt retractor of the vehicle after detecting the seat belt.

[0071] The safety webbing is composed of multiple connected sections, and the signals returned by the webbing detection device after detection of each section of the safety webbing are different.

[0072] In some possible embodiments, the webbing detection device can be configured as one or more photoelectric detection units arranged at the outlet of the seat belt retractor, and the safety webbing is configured to be composed of multiple sections of belts of different colors connected together, so that when the photoelectric detection unit emits detection light and shines it on the safety webbing, the safety webbing can reflect back a colored light signal, and the color of the reflected light signal will be different depending on the length of the safety webbing pulled out.

[0073] In some possible embodiments, the safety belt may be configured to be composed of multiple sections of belts made of different materials. When the photoelectric detection unit emits detection light to illuminate the safety belt, the returned light signals may be different due to the difference in materials.

[0074] Based on this, in an optional embodiment, the feedback signal is an optical signal.

[0075] S130: Determine a usage status of the vehicle seat corresponding to the safety belt based on the feedback signal and the first preset correspondence.

[0076] Among them, the first preset corresponding relationship is the corresponding relationship between the feedback signal and the pulled-out length of the safety belt, and the usage status includes compliant use and non-compliant use.

[0077] Specifically, because the safety webbing is composed of multiple connected sections, and the length of each section of the safety webbing is known, the correspondence between the feedback signal and the safety webbing pulled-out length can be set as a first preset correspondence. Then, by determining the safety webbing pulled-out length corresponding to the signal returned by the webbing detection device in the first preset correspondence, the actual pulled-out length of the safety webbing can be determined.

[0078] In some possible embodiments, the seat belt is configured to consist of four segments of different colors, A, B, C, and D. When the seat belt is not in use, the feedback signal returned by the webbing detection device corresponds to color A. When the seat belt is pulled out but not wrapped around the body, and the seat belt tongue is directly inserted into the buckle, the feedback signal returned by the webbing detection device corresponds to color B. When the seat belt is pulled out and properly wrapped around the body, and the seat belt tongue is inserted into the buckle, the feedback signal returned by the webbing detection device corresponds to color C. When the seat belt is pulled out and wrapped around the child safety seat, and the seat belt tongue is inserted into the buckle, the feedback signal returned by the webbing detection device corresponds to color D. In other words, accurate detection of vehicle seat compliance can be achieved by using the colors corresponding to the feedback signals.

[0079] In this embodiment, by using a webbing detection device to detect a safety webbing composed of multiple connected sections and the difference in the signals returned by the webbing detection device, it is possible to accurately determine whether the safety belt is being used correctly. This avoids the problems of existing technologies that are susceptible to deception and environmental interference, and improves the reliability of the detection. Furthermore, the webbing detection device and the safety webbing are relatively low in cost, thereby reducing overall costs.

[0080] In an optional embodiment, determining the usage status of the vehicle seat corresponding to the safety belt based on the feedback signal and the first preset correspondence includes:

[0081] Determining an actual extended length of the safety webbing based on the feedback signal and the first preset correspondence;

[0082] Determine whether the actual pull-out length falls within the preset length range;

[0083] When the actual extended length is within a first preset length range, determining that the vehicle seat is in an unqualified state and triggering a corresponding preset reminder signal;

[0084] The preset reminder signal includes: a first reminder signal and a second reminder signal;

[0085] The first reminder signal is generated when the actual pulled-out length is within a second preset length range, and is used to indicate that the safety webbing corresponding to the vehicle seat has not been pulled out;

[0086] The second reminder signal is generated when the actual pulled-out length is within a third preset length range, indicating that the pulled-out length of the safety belt has not reached a preset required length, where the preset required length is the minimum length required for the safety belt to be pulled out and pass around the body of a driver or occupant sitting on the vehicle seat;

[0087] The upper limit of the second preset length range is smaller than the lower limit of the third preset length range.

[0088] It is understandable that the length of the seat belt pulled out varies when a young child is seated in the vehicle seat, or when an adult is seated but not wearing a seat belt, or when the seat belt is inserted directly into the buckle without wrapping it around the body. Therefore, by setting preset length ranges for the seat belt pull-out length corresponding to different situations and then comparing the actual pull-out length of the seat belt with the different preset length ranges, it is possible to determine whether the vehicle seat is in compliance with the regulations. Specifically, if the actual pull-out length of the seat belt falls outside the first preset length range, i.e., if the actual pull-out length of the seat belt meets the pull-out length requirement, the vehicle seat is determined to be in compliance with the regulations.

[0089] Specifically, taking the vehicle seat usage status detection method provided by this embodiment as an example, executed through a control feedback unit, the webbing detection device first converts the signal returned by the safety webbing detection into an electrical signal, i.e., a feedback signal, and transmits it to the control feedback unit. The control feedback unit then determines the actual extended length of the safety webbing corresponding to the feedback signal based on a first preset correspondence, i.e., converts the feedback signal into a length value. The control feedback unit then determines whether the vehicle seat is in compliance with the vehicle seat usage regulations by determining whether the actual extended length of the safety webbing falls within a preset length range.

[0090] More specifically, by triggering corresponding preset reminder signals, users can be reminded in a timely manner to use safety belts and vehicle seats correctly.

[0091] It should be noted that, when the safety belt is not pulled out or does not pass around the human body and the lock tongue of the safety belt is directly inserted into the buckle, the pulled-out length of the safety belt (the first preset length range) is significantly smaller than the pulled-out length after the safety belt passes around the human body, and the length when it does not pass around the human body and is directly connected to the buckle (the third preset length range) is significantly longer than when the safety belt is not pulled out (the second preset length range). Therefore, by setting the first preset length range and further subdividing the first preset length range into the second preset length range and the third preset length range, it is possible to distinguish between the two types of non-compliant vehicle seat usage: the safety belt is not used and the safety belt is directly connected to the buckle without passing around the human body.

[0092] It is understandable that for non-compliant behaviors such as the driver and passengers not using seat belts, the seat belts not wrapping around the body but directly connecting to the buckle, or placing a child safety seat on the front passenger seat, since the difference in the pulled-out length of the seat belts is quite obvious, accurate detection can be made by testing the actual pulled-out length of the seat belts. However, for non-compliant behaviors such as children under 12 years old sitting in the front passenger seat, placing heavy objects on the vehicle seat, etc., detection errors are prone to occur simply by testing the pulled-out length of the seat belts.

[0093] Based on this, in an optional embodiment, the vehicle seat usage status detection method further includes:

[0094] Determine the actual load of the vehicle seat based on the load signal;

[0095] The usage state of the vehicle seat is determined based on the actual load-bearing capacity, the actual extended length and the second preset corresponding relationship.

[0096] Among them, the second preset corresponding relationship is the corresponding relationship between the weight of the driver and the pulled-out length of the safety belt.

[0097] In this embodiment, by pre-setting a second preset correspondence including the correspondence between the seat load-bearing and the length of the safety belt pulled out, when performing vehicle seat usage status detection, the actual load-bearing of the vehicle seat, the actual pulled-out length of the safety belt and the second preset correspondence can be combined for detection, thereby further improving the accuracy of the detection and the comprehensiveness of the detection scene coverage.

[0098] In an optional embodiment, determining the usage state of the vehicle seat based on the actual load-bearing capacity, the actual extended length, and the second preset corresponding relationship includes:

[0099] When the actual pulled-out length is within the fourth preset length range, a target weight range corresponding to the actual pulled-out length is determined in the second preset relationship.

[0100] Wherein, the lower limit value of the fourth preset length range is greater than the upper limit value of the first preset length range;

[0101] Determine whether the actual weight bearing is within the target weight range;

[0102] When the actual load is outside the target weight range, the vehicle seat is determined to be in an unqualified state and a corresponding preset reminder signal is triggered;

[0103] The preset reminder signal includes: a third reminder signal;

[0104] The third reminder signal is generated when the actual load is outside the target weight range, and is used to indicate that a first object is placed on the vehicle seat.

[0105] Specifically, when the actual load-bearing capacity is within the target weight range, the vehicle seat is determined to be in compliance with usage, that is, the passenger's body shape calculated based on the weight of the passenger on the seat is consistent with the actual pulled-out length of the safety belt.

[0106] More specifically, taking the detection method provided in this embodiment as an example, the control feedback unit receives the electrical signal Y (actual load) fed back by the pressure detection device, assuming that the actual load has the following values:

[0107] 0: No one sitting or items placed (including safety seats);

[0108] 0 < Y < Y1: Place an item (excluding a safety seat) or a child;

[0109] Y1 < Y < Y2: Place an item (including a safety seat) or a child;

[0110] Y2 < Y: Place an item (heavy object) or an adult.

[0111] And as described above, it is still assumed that the safety belt consists of 4 segments of different colors A, B, C, and D, and the feedback signal is X. When the safety belt is not in use, the feedback signal X returned by the belt detection device corresponds to color A; when the safety belt is pulled out but not bypassed around the body and the seat belt tongue is directly inserted into the buckle, the feedback signal X returned by the belt detection device corresponds to color B; when the seat belt is pulled out and correctly bypassed around the human body and the seat belt tongue is inserted into the buckle, the feedback signal X returned by the belt detection device corresponds to color C, and when the seat belt is pulled out and bypassed around a child safety seat and the seat belt tongue is inserted into the buckle, the feedback signal X returned by the belt detection device corresponds to color D. Then the fourth preset length range is the feedback signal X corresponding to color C.

[0112] Further, when the part of the safety belt corresponding to color C is further subdivided based on a multi-segment belt body of a preset length, for example, subdivided into colors C1 - C5, the pulling-out length of the safety belt when it bypasses the human body and is connected to the buckle can be further subdivided through the feedback signal, and then the corresponding relationship between the pulling-out length of each subdivided safety belt and the weight of the driver and passengers can be obtained through the second preset relationship.

[0113] Based on this, combining the actual load-bearing, the actual pulling-out length, and the second preset corresponding relationship, when the actual pulling-out length of the safety belt does not correspond to the actual load-bearing, the control feedback unit can determine that there is not an adult sitting on the vehicle seat but an object is placed that can make the pulling-out length of the safety belt fall within the range of color C, thereby further improving the detection accuracy.

[0114] It can be understood that based on the seating requirements of the vehicle seat, it is not allowed to place a child safety seat in the co-driver seat. Based on this, in an optional embodiment, determining the use state of the vehicle seat based on the actual load-bearing, the actual pulling-out length, and the second preset corresponding relationship further includes:

[0115] When the actual pulling-out length is within the fifth preset length range, obtain the seating requirements of the vehicle seat.

[0116] Wherein, the lower limit value of the fifth preset length range is greater than the upper limit value of the fourth preset length range;

[0117] [[ID=,]]Based on the seating requirements, determine whether the vehicle seat allows the placement of a child safety seat;

[0118] When it is determined that the vehicle seat does not allow the placement of a child safety seat, or the vehicle seat allows the placement of a child safety seat and the actual load is outside the target weight range stipulated by the second preset corresponding relationship, determine that the usage status of the vehicle seat is non-compliant and trigger a corresponding preset reminder signal;

[0119] Among them, the preset reminder signals include: the fourth reminder signal and the fifth reminder signal;

[0120] The fifth reminder signal is generated when the vehicle seat does not allow the placement of a child safety seat and is used to indicate that a child safety seat is placed on the vehicle seat;

[0121] The sixth reminder signal is generated when the vehicle seat allows the placement of a child safety seat and the actual load is outside the target weight range stipulated by the second preset corresponding relationship, and is used to indicate that a second item is placed on the vehicle seat.

[0122] It should be noted that when it is determined that the vehicle seat allows the placement of a child safety seat and the actual load is within the target weight range stipulated by the second preset corresponding relationship, determine that the usage status of the vehicle seat is compliant.

[0123] In some possible embodiments, still taking the above-mentioned value ranges of X and Y as an example, the control feedback unit receives the signal W (1 = allowed, 0 = not allowed) indicating whether a child safety seat can be placed on the seat. Then, in combination with the actual load, the actual pulled-out length and the second preset corresponding relationship, the control feedback unit can obtain the following several judgment results and trigger corresponding preset reminder signals Z:

[0124] If X = A and Y = 0, then Z = [No one is sitting in this position|No item (safety seat) is placed], and the safety belt is not used.

[0125] If X = A and 0 < Y < Y1, then Z = [An item (excluding the safety seat) is placed in this position|Child], and the safety belt is not used.

[0126] If X = A and 0 < Y < Y2, then Z = [An item (including the safety seat) is placed in this position|Child], and the safety belt is not used;

[0127] If X = A and Y2 < Y, then Z = [An item (heavy object) is placed in this position|Adult], and the safety belt is not used.

[0128] If X = B and Y2 < Y, then Z = [The user has not fastened the seat belt|An item (heavy object) is placed in this position].

[0129] If X = C and 0 < Y < Y2, then Z = [The child in this position has not used a child safety seat|An item (excluding the safety seat) is placed].

[0130] If X = Cn (n = 1, 2, 3, 4 or 5) and Y does not belong to the target weight range corresponding to Cn, then Z = the item placed by the child at this position (excluding the safety seat).

[0131] If X = D, Y1 < Y < Y2, and W = 0, then Z = the child safety seat is not allowed to be placed on this seat and properly fixed.

[0132] In summary, taking the webbing detection device as a photoelectric sensor and the pressure detection device as a pressure sensor, and applying the control feedback unit to execute the vehicle seat usage status detection method provided in the above embodiments as an example, the layout of the control feedback unit 001 and the photoelectric sensor 002 at the safety webbing 003 is as Figure 2 shown, where the pressure sensor is not shown in the figure. The specific process of implementing the method provided in the above embodiments is as Figure 3 shown, that is, when the load-bearing signal received by the pressure sensor is greater than 0, the photoelectric sensor emits detection light to the safety webbing and receives the returned reflected light, converts it into a feedback signal and sends it to the control feedback unit. The control feedback unit determines the state of the safety webbing according to the feedback signal and the load-bearing signal sent by the pressure sensor, and triggers an alarm device to emit a corresponding preset reminder signal when it is determined that the usage status of the vehicle seat is non-compliant, so that the user can get a reminder according to the preset reminder signal such as visual or sound prompts, and make timely adjustments to ensure the compliance of the vehicle seat usage.

[0133] Next, a vehicle seat usage status detection system provided by an embodiment of the present invention will be introduced. The vehicle seat usage status detection system described below can be considered as a module architecture for implementing the vehicle seat usage status detection method provided by an embodiment of the present invention; the content described below can be referred to each other with the above content.

[0134] See Figure 4 , Figure 4 is a structural block diagram of a vehicle seat usage status detection system provided by an embodiment of the present invention. The system may include: a safety webbing 10, a pressure detection device 20, a webbing detection device 30, and a detection unit 40; where

[0135] The safety webbing 10 is composed of multiple connected segments, and the signals returned by each segment of the safety webbing 10 detected by the webbing detection device 30 are different;

[0136] The pressure detection device 20 is installed at the vehicle seat and is used to detect the weighing data of the vehicle seat and generate a weighing signal;

[0137] The webbing detection device 30 is installed at the outlet of the seat belt retractor of the vehicle and is used to send a detection signal to the safety webbing 10 and receive the returned detection signal to generate a feedback signal;

[0138] The detection unit 40 is used to receive the weighing signal and obtain a feedback signal after determining that the load-bearing signal is greater than 0, and determine the usage status of the vehicle seat corresponding to the safety belt 10 based on the feedback signal and a first preset correspondence. The first preset correspondence is the correspondence between the feedback signal and the pulled-out length of the safety belt. The usage status includes compliant use and non-compliant use.

[0139] Optionally, the webbing detection device 30 is a photoelectric detection device, which emits detection light to illuminate the safety webbing 10 and generates the feedback signal based on a light signal reflected back by the safety webbing 10 .

[0140] Optionally, the detection unit 40 is specifically configured to:

[0141] Determining an actual extended length of the safety webbing based on the feedback signal and the first preset correspondence;

[0142] Determine whether the actual pull-out length falls within the preset length range;

[0143] When the actual extended length is within a first preset length range, determining that the vehicle seat is in an unqualified state and triggering a corresponding preset reminder signal;

[0144] The preset reminder signal includes: a first reminder signal and a second reminder signal;

[0145] The first reminder signal is generated when the actual pulled-out length is within a second preset length range, and is used to indicate that the safety webbing corresponding to the vehicle seat has not been pulled out;

[0146] The second reminder signal is generated when the actual pulled-out length is within a third preset length range, indicating that the pulled-out length of the safety belt has not reached a preset required length, where the preset required length is the minimum length required for the safety belt to be pulled out and pass around the body of a driver or occupant sitting on the vehicle seat;

[0147] The upper limit of the second preset length range is smaller than the lower limit of the third preset length range.

[0148] Optionally, the detection unit 40 is further configured to:

[0149] Determine the actual load of the vehicle seat based on the load signal;

[0150] The usage status of the vehicle seat is determined based on the actual load-bearing, the actual pulled-out length and a second preset corresponding relationship, where the second preset corresponding relationship is the corresponding relationship between the driver and passenger weight and the pulled-out length of the safety belt.

[0151] Optionally, the detection unit 40 is further specifically configured to:

[0152] When the actual pulled-out length is within a fourth preset length range, a target weight range corresponding to the actual pulled-out length is determined in the second preset relationship, and a lower limit value of the fourth preset length range is greater than an upper limit value of the first preset length range;

[0153] Determine whether the actual weight bearing is within the target weight range;

[0154] When the actual load is outside the target weight range, the vehicle seat is determined to be in an unqualified state and a corresponding preset reminder signal is triggered;

[0155] The preset reminder signal includes: a third reminder signal;

[0156] The third reminder signal is generated when the actual load is outside the target weight range, and is used to indicate that a first object is placed on the vehicle seat.

[0157] Optionally, the detection unit 40 is further specifically configured to:

[0158] When the actual extended length is within a fifth preset length range, obtaining a seating requirement of the vehicle seat, wherein a lower limit value of the fifth preset length range is greater than an upper limit value of the fourth preset length range;

[0159] Determine whether the vehicle seat allows the placement of a child safety seat based on seating requirements;

[0160] When it is determined that the vehicle seat does not allow the placement of a child safety seat, or when the vehicle seat allows the placement of a child safety seat and the actual load-bearing capacity is outside the target weight range specified in the second preset correspondence, determining that the usage status of the vehicle seat is non-compliant and triggering a corresponding preset reminder signal;

[0161] The preset reminder signals include: a fourth reminder signal and a fifth reminder signal;

[0162] The fifth reminder signal is generated when the vehicle seat does not allow the placement of a child safety seat, and is used to indicate that a child safety seat is placed on the vehicle seat;

[0163] The sixth reminder signal is generated when the vehicle seat allows a child safety seat to be placed and the actual load is outside the target weight range agreed upon in the second preset correspondence, and is used to indicate that a second object is placed on the vehicle seat.

[0164] Optionally, an embodiment of the present application further provides a vehicle, and the vehicle provided in this embodiment includes a vehicle body and a vehicle seat usage status detection system as provided in the above embodiment.

[0165] Optionally, an embodiment of the present application further provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the vehicle seat usage status detection method provided by the above-mentioned methods.

[0166] Below, reference Figure 5 To describe the electronic device provided by the embodiment of the present application, the electronic device provided by the embodiment may include: at least one processor 100, at least one communication interface 200, at least one memory 300 and at least one communication bus 400;

[0167] In the embodiment of the present invention, the number of the processor 100, the communication interface 200, the memory 300, and the communication bus 400 is at least one, and the processor 100, the communication interface 200, and the memory 300 communicate with each other through the communication bus 400; obviously, Figure 5 The communication connections shown for the processor 100, communication interface 200, memory 300, and communication bus 400 are merely optional;

[0168] Optionally, the communication interface 200 may be an interface of a communication module, such as an interface of a GSM module; the processor 100 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement an embodiment of the present invention.

[0169] The memory 300 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0170] The processor 100 is specifically configured to execute an application program in the memory to implement the steps of the above-mentioned vehicle seat usage status detection method.

[0171] The basic principles of the present application have been described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, and effects mentioned in this application are merely illustrative and not restrictive, and it should not be assumed that these advantages, strengths, and effects are required of each embodiment of this application. In addition, the specific details disclosed above are merely illustrative and facilitating understanding, and are not restrictive. The above details do not limit this application to necessarily being implemented using the above specific details.

[0172] The block diagrams of the devices, devices, equipment, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As will be appreciated by those skilled in the art, these devices, devices, equipment, and systems can be connected, arranged, or configured in any manner. Words such as "include," "comprise," "have," and the like are open-ended words, meaning "including but not limited to," and can be used interchangeably therewith. The words "or" and "and" used herein refer to the words "and / or" and can be used interchangeably therewith, unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to," and can be used interchangeably therewith.

[0173] It should also be noted that in the apparatus, device, and method of the present application, each component or each step can be decomposed and / or recombined, and such decomposition and / or recombination should be regarded as equivalent solutions of the present application.

[0174] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0175] It should be understood that the qualifiers "first", "second", "third", "fourth", "fifth" and "sixth" used in the description of the embodiments of the present application are only used to more clearly illustrate the technical solutions and cannot be used to limit the scope of protection of the present application.

[0176] The above description has been provided for the purpose of illustration and description. Furthermore, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A method for detecting the use status of a vehicle seat, characterized in that: include: Acquire a load-bearing signal, wherein the load-bearing signal is pressure data returned by a pressure detection device installed at a vehicle seat; Determine whether the load-bearing signal is greater than 0; After determining that the load-bearing signal is greater than 0, obtaining a feedback signal, wherein the feedback signal is a signal returned by a webbing detection device installed at an outlet of a seat belt retractor of the vehicle after detecting the seat belt; The safety webbing is composed of multiple connected sections, and the signals returned by the webbing detection device after detection of each section of the safety webbing are different; Based on the feedback signal and a first preset correspondence, the usage status of the vehicle seat corresponding to the safety belt is determined. The first preset correspondence is the correspondence between the feedback signal and the pulled-out length of the safety belt. The usage status includes compliant usage and non-compliant usage.

2. The method according to claim 1, characterized in that The determining, based on the feedback signal and the first preset correspondence, the usage status of the vehicle seat corresponding to the safety belt includes: determining an actual extended length of the safety belt based on the feedback signal and the first preset correspondence; Determining the preset length range within which the actual pulled-out length falls; When the actual extended length is within a first preset length range, determining that the vehicle seat is in a non-compliant state of use and triggering a corresponding preset reminder signal; Wherein, the preset reminder signal includes: a first reminder signal and a second reminder signal; The first reminder signal is generated when the actual pulled-out length is within a second preset length range, and is used to indicate that the safety webbing corresponding to the vehicle seat has not been pulled out; The second reminder signal is generated when the actual pulled-out length is within a third preset length range, indicating that the pulled-out length of the safety belt has not reached a preset required length, wherein the preset required length is the minimum length required for the safety belt to be pulled out and pass around the body of a driver and passenger sitting on the vehicle seat; The upper limit of the second preset length range is smaller than the lower limit of the third preset length range.

3. The method according to claim 2, characterized in that Also includes: determining an actual load bearing of the vehicle seat based on the load bearing signal; The usage state of the vehicle seat is determined based on the actual load-bearing, the actual pulled-out length, and a second preset corresponding relationship, where the second preset corresponding relationship is a corresponding relationship between the weight of the driver and the pulled-out length of the safety belt.

4. The method according to claim 3, characterized in that The determining the usage state of the vehicle seat based on the actual load-bearing capacity, the actual extended length, and a second preset corresponding relationship includes: When the actual pulled-out length is within a fourth preset length range, a target weight range corresponding to the actual pulled-out length is determined in the second preset relationship, and a lower limit value of the fourth preset length range is greater than an upper limit value of the first preset length range; determining whether the actual weight-bearing capacity is within the target weight range; When the actual load-bearing capacity is outside the target weight range, determining that the vehicle seat is in an unqualified state and triggering the corresponding preset reminder signal; Wherein, the preset reminder signal includes: a third reminder signal; The third reminder signal is generated when the actual load is outside the target weight range, and is used to indicate that a first object is placed on the vehicle seat.

5. The method according to claim 4, characterized in that The determining of the usage state of the vehicle seat based on the actual load-bearing capacity, the actual extended length, and a second preset corresponding relationship further includes: When the actual extended length is within a fifth preset length range, obtaining a seating requirement of the vehicle seat, wherein a lower limit value of the fifth preset length range is greater than an upper limit value of the fourth preset length range; Based on the seating requirement, determining whether the vehicle seat allows placement of a child safety seat; When it is determined that the vehicle seat does not allow the placement of a child safety seat, or when the vehicle seat allows the placement of a child safety seat and the actual load-bearing capacity is outside the target weight range agreed upon in the second preset correspondence, determining that the usage status of the vehicle seat is non-compliant and triggering the corresponding preset reminder signal; Wherein, the preset reminder signal includes: a fourth reminder signal and a fifth reminder signal; The fifth reminder signal is generated when the vehicle seat does not allow the placement of a child safety seat, and is used to indicate that a child safety seat is placed on the vehicle seat; The sixth reminder signal is generated when the vehicle seat allows a child safety seat to be placed and the actual load-bearing capacity is outside the target weight range agreed upon by the second preset correspondence, and is used to indicate that a second object is placed on the vehicle seat.

6. The method according to any one of claims 1 to 5, characterized in that The feedback signal is an optical signal.

7. A vehicle seat usage status detection system, characterized in that: include: Safety webbing, pressure detection device, webbing detection device and detection unit; wherein, The safety webbing is composed of multiple connected sections, and the signals returned by the webbing detection device after detection of each section of the safety webbing are different; The pressure detection device is installed at the vehicle seat and is used to detect the weighing data of the vehicle seat and generate a weighing signal; The webbing detection device is installed at the exit of the seat belt retractor of the vehicle, and is used to send a detection signal to the seat belt and receive the returned detection signal to generate a feedback signal; The detection unit is used to receive the weighing signal and, after determining that the load-bearing signal is greater than 0, obtain the feedback signal, and determine the usage status of the vehicle seat corresponding to the safety belt based on the feedback signal and a first preset correspondence. The first preset correspondence is the correspondence between the feedback signal and the pulled-out length of the safety belt. The usage status includes compliant use and non-compliant use.

8. The system according to claim 7, characterized in that The webbing detection device is a photoelectric detection device, which emits detection light to illuminate the safety webbing and generates the feedback signal based on a light signal reflected back by the safety webbing.

9. A vehicle, characterized in that: The vehicle seat usage status detection system comprises a vehicle body and the vehicle seat usage status detection system as claimed in claim 7 or 8.

10. An electronic device, characterized in that: The electronic device comprises: processor; a memory for storing instructions executable by the processor; The processor is configured to execute the method according to any one of claims 1 to 6.

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