A safety belt control method and device based on child state, medium and equipment

Abstract

The application belongs to the technical field of automobiles and provides a safety belt control method and device based on the state of a child, a medium and equipment, which comprises the following steps: in response to a lock buckle locking instruction, controlling the safety belt lock buckle of the child to be locked; judging whether the vehicle has collided, and if so, unlocking the safety belt lock buckle; otherwise, acquiring the heart rate of the child, the safety belt stretch length and the voice of the child at a plurality of continuous time points; based on the heart rate of the child at the plurality of continuous time points, calculating the average heart rate and judging the heart rate range in which the child is located; based on the safety belt stretch length at the plurality of continuous time points, identifying the safety belt state by calculating the variance of the safety belt stretch length; based on the voice of the child at the plurality of continuous time points, extracting the tone features and identifying the emotion of the child; based on the heart rate range in which the child is located, the safety belt state and the emotion of the child, judging the state of the child; and based on the state of the child, controlling the safety belt stretch length. The risk that the child moves around and struggles to break free from the safety belt can be avoided, and the safety of the child is protected.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of automobiles, and particularly relates to a safety belt control method and device based on the state of a child, a medium and equipment. BACKGROUND

[0002] The statements in this section merely provide background information related to the present application and do not necessarily constitute prior art.

[0003] When children between 4 and 12 years old ride in a car, they cannot sit in the front passenger seat and need to sit in the back seat of the car. If there is an adult accompanying the ride, the rear passenger can easily take care of the child in the back row, but there are also many cases where one adult takes one child to ride in a car. It is difficult for the adult to be distracted to check the child's condition while driving, and if the child unfastens the safety belt and moves around in the car, or even moves his hands and body out of the window, then in this case, the child's life safety will have a greater security risk.

[0004] At present, the vehicle-mounted robot seat can compare the tightness of the child safety belt with the preset tightness by detecting the tightness of the child safety belt, so as to realize the tightening and loosening of the child safety belt. However, it cannot identify the state of the child, cannot adjust the safety belt according to the different states of the child such as crying, sleeping, etc., cannot relieve the anxious state of the child when riding in a car, and still affects the safe driving of the adult. SUMMARY

[0005] In order to solve the technical problems in the background art, the present application provides a safety belt control method and device based on the state of a child, a medium and equipment, which adjusts and controls the safety belt according to the state of the child, can avoid the risk of the child moving around and struggling with the safety belt, is beneficial to protect the safety of the child, and by analyzing the change of the stretching amplitude of the safety belt in a period of time, the influence of the different heights and sizes of the child and the instantaneous action on the recognition result of the safety belt state is avoided to the greatest extent, which is beneficial to accurately judge the state of the child.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0007] The first aspect of the present application provides a safety belt control method based on the state of a child.

[0008] A safety belt control method based on the state of a child, comprising:

[0009] In response to the locking instruction of the lock buckle, the safety belt lock buckle of the child is controlled to be locked;

[0010] determining whether the vehicle has a collision, if yes, unlocking the safety belt buckle; otherwise, obtaining the child's heart rate, the safety belt stretch length and the child's voice at continuous time points; calculating the average heart rate based on the child's heart rate at continuous time points, determining the heart rate range in which the child is located; based on the safety belt stretch length at continuous time points, identifying the safety belt state by calculating the variance of the safety belt stretch length; based on the child's voice at continuous time points, extracting the tone feature and identifying the child's emotion; based on the child's heart rate range, the safety belt state and the child's emotion, determining the child's state.

[0011] controlling the safety belt stretch length based on the child's state.

[0012] Further, the control step of the safety belt stretch length comprises:

[0013] adjusting the safety belt stretch length level based on the child's state;

[0014] obtaining the child's weight, height and age, combining the safety belt stretch length level, and calling the upper limit of the safety belt stretch length;

[0015] controlling the safety belt based on the upper limit of the safety belt stretch length.

[0016] Further, it further comprises: controlling the playing content of the player based on the child's state.

[0017] Further, the heart rate range comprises a resting heart rate range, a normal heart rate range and an exercise heart rate range, and the heart rate range has different value ranges according to different child's weight, height and age.

[0018] Further, the tone feature is extracted by using a convolutional neural network, and the child's emotion is identified by processing the tone features at a plurality of continuous time points in a period of time through a long short-term memory network.

[0019] Further, the safety belt state identification method is: when the variance is lower than a first threshold, the safety belt state is no fluctuation; when the variance is greater than the first threshold and lower than a second threshold, the safety belt state is smaller fluctuation; when the variance is greater than the second threshold and lower than a third threshold, the safety belt state is larger fluctuation.

[0020] Further, the child's state comprises sleeping, normal and anxious, and when the child's state is anxious, an alarm instruction is sent.

[0021] The second aspect of the application provides a safety belt control device based on a child's state.

[0022] A safety belt control device based on a child's state comprises:

[0023] The locking module is configured to control the locking of the child's seat belt buckle in response to a buckle locking instruction.

[0024] The monitoring module is configured to: determine whether the vehicle has a collision, and if so, unlock the seat belt buckle; otherwise, acquire the child's heart rate, seat belt stretch length and child's voice at a plurality of continuous time points; calculate an average heart rate based on the child's heart rate at the plurality of continuous time points, and determine a heart rate range in which the child is located; identify the seat belt state by calculating the variance of the seat belt stretch length based on the seat belt stretch length at the plurality of continuous time points; extract a tone feature based on the child's voice at the plurality of continuous time points, and identify the child's emotion; and determine the child's state based on the heart rate range in which the child is located, the seat belt state and the child's emotion.

[0025] The control module is configured to control the seat belt stretch length based on the child's state.

[0026] The third aspect of the present application provides a computer readable storage medium.

[0027] A computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the child state-based seat belt control method according to the first aspect.

[0028] The fourth aspect of the present application provides a computer device.

[0029] A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the child state-based seat belt control method according to the first aspect when executing the program.

[0030] Compared with the prior art, the present application has the following advantages:

[0031] The present application detects the seat belt state by analyzing the change in the stretch amplitude of the seat belt over a period of time through variance, rather than data at a certain time point, thereby avoiding the influence of different child heights and body shapes and instantaneous actions on the recognition result of the seat belt state to the greatest extent, and facilitating accurate determination of whether the child has a continuous movement or even an attempt to break free from the seat belt.

[0032] The present application has the function of actively monitoring the child's state, and by setting sensors, the child's heart rate, seat belt state and emotion are monitored, the child's state is identified, and the seat belt is adjusted and controlled according to the child's state, thereby avoiding the risk of the child moving and breaking free from the seat belt, and further protecting the child's safety.

[0033] The rear seat safety belt is buckled, and the rear seat child cannot unlock the safety belt buckle, thereby avoiding the situation that the child loses the protection of the safety belt by unlocking the safety belt during driving, and when the car collides or some emergency occurs, the rear seat safety belt restores the normal safety belt function, and the child can be manually unlocked to facilitate timely escape.

[0034] The application controls the playing content of the player according to the state of the child, shifts the attention of the child, alleviates the anxious state of the child when the child is in the car, and prevents the child from being naughty and disturbing the safe driving of the parents.

[0035] When the state of the child is anxious, the application timely feeds back the abnormal situation to the parents, so that the parents can timely pay attention to the abnormal state of the child and alleviate the anxious state of the child when the child is in the car. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0037] Figure 1 is a flow chart of a safety belt control method based on the state of a child according to an embodiment of the present application;

[0038] Figure 2 is a structural schematic diagram of a computer device according to an embodiment of the present application. DETAILED DESCRIPTION

[0039] The present application will be further described below in combination with the drawings and embodiments.

[0040] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0041] It should be noted that the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form, and in addition, it should be understood that when the terms "comprise" and / or "include" are used in the specification, they indicate the presence of a feature, step, operation, device, component and / or combination thereof.

[0042] It is to be understood that the arrangements of the flow diagrams and block diagrams of the drawings illustrate the architecture, functionality, and operation of possible implementations of methods and apparatuses according to various embodiments of the present application. It is to be noted that each block in the flow diagrams or block diagrams can represent a module, a segment, or a portion of code, which can include one or more executable instructions for implementing the specified logical functions. It should also be noted that in some alternative implementations, the functions noted in the blocks can occur out of the order noted in the figures. For example, two blocks noted in succession can in fact be executed substantially concurrently or can sometimes be executed in reverse order, depending on the functionality involved. It should also be noted that each block in the flow diagrams and / or block diagrams and combinations of blocks in the flow diagrams and / or block diagrams can be implemented by special-purpose hardware-based devices, which perform the specified functions or operations, or can be implemented by a combination of special-purpose hardware-based devices and computer instructions.

[0043] Embodiment one

[0044] The embodiment provides a safety belt control method based on child state.

[0045] The safety belt control method based on child state provided by the embodiment is used for solving the safety problem of children on the back seat of a car when parents drive alone with children.

[0046] The safety belt control method based on child state provided by the embodiment is used for solving the safety problem of children on the back seat of a car when parents drive alone with children.

[0047] The safety belt control method based on child state provided by the embodiment is used for solving the safety problem of children on the back seat of a car when parents drive alone with children. Figure 1 The safety belt control method based on child state provided by the embodiment is used for solving the safety problem of children on the back seat of a car when parents drive alone with children.

[0048] Step 1, after the user buckles up the child in the back row, the central control or voice opens the "back row safety belt child mode", and obtains the child's weight and age through the central control or voice, and obtains the setting of whether the lock is locked, the safety belt stretch length level, whether to play children's songs / stories, whether to open the adaptive adjustment function, etc. through the central control or voice.

[0049] Step 2, according to the child's weight, height and age, and the safety belt stretch length level, the upper limit of the safety belt stretch length is retrieved, and the safety belt is controlled based on the upper limit of the safety belt stretch length. The safety belt will not be able to continue to stretch after stretching to the upper limit, in order to prevent excessive stretching, so that the child has the opportunity to escape from the safety belt, thereby losing the protection effect.

[0050] Among them, the safety belt stretch length level includes three levels of tight, normal and loose. The central control stores the upper limit of the safety belt stretch length corresponding to different weight, height and age, and safety belt stretch length level. For example, when the child's weight is 20kg, the age is 5 years old, and the safety belt stretch length level is tight, the upper limit of the safety belt stretch length is l1, when the safety belt stretch length level is normal, the upper limit of the safety belt stretch length is l2, and when the safety belt stretch length level is loose, the upper limit of the safety belt stretch length is l3, l3>l2>l1.

[0051] Step 3, in response to the lock buckle locking instruction, the back row safety belt lock buckle is locked (the left and right seats in the back row can be controlled respectively).

[0052] Under normal circumstances, the back row safety belt lock buckle cannot be opened automatically after being locked, and needs to be authorized by the main driver to be unlocked. The main driver can authorize unlocking by operating the central control screen or the voice control system. In this way, the problem of children unlocking the safety belt during driving is solved.

[0053] When the car collides or some emergency occurs, and the safety belt has completed the protection of the child, the back row safety belt child mode will automatically exit, and the normal safety belt function will be restored, and the lock can be manually unlocked to facilitate the child to escape in time.

[0054] Step 4, determine whether the vehicle has collided, if so, exit the back row safety belt child mode, unlock the safety belt lock, and the safety belt returns to normal safety belt function, and the safety belt can be manually unlocked to facilitate the child to escape in time; otherwise, go to step 5.

[0055] Step 5, in response to the back row safety belt child mode instruction, the monitoring device operates to monitor the child's state, and determines whether the child's state is normal. If so, continue to monitor the child's state, otherwise, go to step 6 and step 7.

[0056] Step 501, continuously monitor the heart rate of the child wearing the safety belt by setting a sensor on the safety belt, calculate the average heart rate data in a period of time, and compare the average heart rate data with different heart rate ranges to determine the heart rate range of the child.

[0057] In this embodiment, according to the weight, height and age of the child, the resting heart rate range, normal heart rate range and exercise heart rate range are retrieved.

[0058] In this embodiment, the sensor for monitoring the heart rate of the child is a heart rate sensor, which is embedded in a mounting shell that can be adjusted on the safety belt. For details, please refer to the patent with application number CN202222783656.8.

[0059] Step 502, a sensor for detecting the stretching length of the safety belt is arranged at the end of the safety belt, and the stretching length at several consecutive time points in a period of time is obtained to identify the safety belt state.

[0060] The safety belt state includes no fluctuation, small fluctuation and large fluctuation.

[0061] In this embodiment, the sensor for detecting the stretching length of the safety belt is a displacement sensor.

[0062] As an implementation, based on the stretching length at several consecutive time points in a period of time, the safety belt state is identified by calculating the variance. The variance is:

[0063] S = [(M - x1)2 + (M - x2)2 + (M - x3)2 + … + (M - xn)2] / n.

[0064] Wherein, xi represents the stretching length at the i-th time point, M is the average value of the stretching length at several consecutive time points in a period of time, and n is the number of time points in a period of time.

[0065] For example, when the variance is lower than the first threshold, the safety belt state is no fluctuation; when the variance is greater than the first threshold and lower than the second threshold, the safety belt state is small fluctuation; when the variance is greater than the second threshold and lower than the third threshold, the safety belt state is large fluctuation.

[0066] The central control analyzes the change of the stretching amplitude of the safety belt in a period of time through the variance, rather than the data at a certain moment, to detect the sitting posture of the child, which maximizes the influence of the child's height and size and instantaneous action on the result, and can accurately determine whether the child has the behavior of continuously moving or even trying to break free from the safety belt.

[0067] Step 503, obtain the child's voice at several consecutive time points in a period of time, extract the tone features, and identify the child's emotion.

[0068] The emotion is divided into stable, poor and good.

[0069] In the embodiment, the child voice can be recorded by a recording device arranged on the top or both sides of the rear seat.

[0070] The tone feature is extracted by a convolutional neural network. The tone features of several continuous time points in a period of time are input into a long short-term memory (LSTM) network to identify the emotion of the child.

[0071] The tone of the child's speech is detected. The tone emitted by a person in different emotions is different. If only the decibel size of the sound is detected, it is obviously not accurate enough. If the tone is detected to be sad and rapid, the child is likely to be in a poor state of mind; if the tone is detected to be slow, the child is basically in a good state of mind.

[0072] In step 504, the current physical and psychological state of the child is comprehensively evaluated by the heart rate range of the child, the posture (the state of the safety belt) and the tone information (the emotion of the child), so as to ensure the accuracy of the evaluation result.

[0073] Specifically, the state of the child is determined based on the heart rate range of the child, the state of the safety belt and the emotion.

[0074] The state of the child includes sleeping, normal, and anxious (crying or continuously moving). For example, if the heart rate range is the resting heart rate range, the state of the safety belt is no fluctuation, and the emotion is stable, the state of the child is sleeping; if the heart rate range is the normal heart rate range, the state of the safety belt is small fluctuation, and the emotion is stable or good, the state of the child is normal; if the heart rate range is the exercise heart rate range, the state of the safety belt is large fluctuation, and the emotion is poor, the state of the child is crying; if the heart rate range is the normal heart rate range, the state of the safety belt is large fluctuation, and the emotion is normal or good, the state of the child is continuously moving or even trying to break free from the safety belt. Crying and continuously moving are both anxious states.

[0075] In step 6, in response to the adaptive adjustment function opening instruction, the state of the child identified in step 5 is obtained, and part of the function is adaptively adjusted.

[0076] For example, when the child state is sleeping, the adjustment of the safety belt stretch length level is tight, the upper limit of the safety belt stretch length is reduced, and the vehicle is prevented from shaking and waking up the child; when the child state is normal, no adjustment is made; when the child state is crying, the central control controls the player to play (the loudspeaker at the child's seat) a children's song or a story to divert the child's attention, which can not only have a calming effect but also does not affect the safe driving of the parents, and at the same time, the safety belt stretch length level is adjusted to be tight, and the upper limit of the safety belt stretch length is reduced to prevent the child from moving around and causing danger; when the child state is continuously moving around, the central control controls the player to play a children's song or a story to divert the child's attention, and at the same time, the safety belt stretch length level is adjusted to be tight, and the upper limit of the safety belt stretch length is reduced to prevent the child from moving around and causing danger.

[0077] In the present embodiment, the control of the safety belt stretch length adopts a retractor, that is, the central control calculates the retraction force to control the retractor according to the difference between the upper limit of the adjusted safety belt stretch length and the current safety belt stretch length, and the specific process can refer to the patent with the application number CN201310681115.7.

[0078] Step 7, if the child state is abnormal (crying or continuously moving around), an alarm is immediately given to remind the parent who is the driver to care about the rear child as soon as possible.

[0079] Step 8, in response to the offline mode start instruction set by the user through the central control or voice, the offline mode is started, and in the offline mode, the central control synchronizes the child state information recognized in step 5 to the mobile phone APP.

[0080] When the parent needs to get off the vehicle temporarily and it is inconvenient to take the child together, the mobile phone offline mode can be started before getting off, and once an abnormal situation occurs, the system can immediately alarm the parent, the parent can communicate with the child through the mobile phone APP and the in-vehicle loudspeaker microphone, calm the child's mood, and return to the vehicle as soon as possible to ensure the safety of the child.

[0081] Embodiment Two

[0082] The present embodiment provides a safety belt control device based on a child state.

[0083] A safety belt control device based on a child state, comprising:

[0084] A locking module configured to control the safety belt lock of the child to be locked in response to a lock instruction;

[0085] The monitoring module is configured to: determine whether the vehicle has a collision, and if so, unlock the seat belt buckle; otherwise, acquire the child heart rate, the seat belt stretch length and the child voice at a plurality of continuous time points; calculate the average heart rate based on the child heart rate at the plurality of continuous time points, and determine the heart rate range in which the child is located; identify the seat belt state by calculating the variance of the seat belt stretch length based on the seat belt stretch length at the plurality of continuous time points; extract the tone feature based on the child voice at the plurality of continuous time points, and identify the child emotion; and determine the child state based on the heart rate range in which the child is located, the seat belt state and the child emotion.

[0086] The control module is configured to control the seat belt stretch length based on the child state.

[0087] It should be noted that: the above embodiment provides a seat belt control device based on the child state, and only the division of the above functional modules is exemplified, and in actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the electronic device is divided into different functional modules to complete all or part of the functions described above. In addition, the seat belt control device based on the child state provided by the above embodiment and the seat belt control method based on the child state belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0088] Embodiment three

[0089] The embodiment provides a computer readable storage medium, which stores a computer program, and the program is executed by a processor to realize the steps in the seat belt control method based on the child state provided in the above embodiment one.

[0090] Embodiment four

[0091] The embodiment provides a computer device, which includes a memory, a processor and a computer program stored in the memory and executable on the processor, and the processor realizes the steps in the seat belt control method based on the child state provided in the above embodiment one when executing the program.

[0092] Figure 2 The structure schematic diagram of the computer device provided by an example embodiment of the present application is shown. The computer device includes a processor and a memory.

[0093] The processor can include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The processor can be implemented in at least one of a hardware form of a DSP (Digital Signal Processing), an FPGA (Field Programmable Gate Array), a PLA (Programmable Logic Array). The processor can also include a main processor and a coprocessor, the main processor being a processor for processing data in an awake state, also referred to as a CPU (Central Processing Unit), and the coprocessor being a low-power processor for processing data in a standby state. In some embodiments, the processor can be integrated with a GPU (Graphics Processing Unit) for rendering and drawing content required to be displayed by the display screen. In some embodiments, the processor can further include an AI (Artificial Intelligence) processor for processing computing operations related to machine learning.

[0094] The memory can include one or more computer-readable storage media that can be non-transitory. The memory can also include a high-speed random access memory, and a nonvolatile memory such as one or more disk storage devices, flash storage devices. In some embodiments, the non-transitory computer-readable storage medium in the memory is used to store at least one computer program for being executed by the processor to implement the in-vehicle personnel detection method provided by the method embodiments in the present application.

[0095] Those skilled in the art can understand that the structure shown does not constitute a limitation on the computer device, and can include more or fewer components than those shown, or combine certain components, or adopt different component arrangements.

[0096] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A seatbelt control method based on a child's state, characterized in that, include: In response to a buckle locking command, control the child's seatbelt buckle to lock; Determine if a collision has occurred. If so, unlock the seatbelt buckle; otherwise, acquire the child's heart rate, seatbelt extension length, and child's voice over several consecutive time intervals. Calculate the average heart rate based on the child's heart rate over several consecutive time intervals to determine the child's current heart rate range. Based on the seat belt extension length at several consecutive moments, the seat belt status is identified by calculating the variance of the seat belt extension length. Based on children's speech at several consecutive moments, tone features are extracted to identify children's emotions; the child's state is determined based on the child's heart rate range, seat belt status, and the child's emotions. Based on the child's condition, control the seat belt extension length; The child's state includes sleeping, normal, and agitated, and an alarm command is sent when the child's state is agitated. The steps for controlling the seat belt extension length include: Adjust the seat belt tension level according to the child's condition; Obtain the child's weight, height, and age, and in conjunction with the seat belt extension length rating, retrieve the upper limit of the seat belt extension length; Seat belts are controlled based on the upper limit of their stretch length.

2. The seatbelt control method based on a child's status according to claim 1, characterized in that, Also includes: Based on the child's status, the playback content of the player is controlled.

3. The seatbelt control method based on a child's status according to claim 1, characterized in that, The heart rate range includes the resting heart rate range, the normal heart rate range, and the exercise heart rate range, and the heart rate range varies depending on the child's weight, height, and age.

4. The seatbelt control method based on a child's status according to claim 1, characterized in that, The extraction of tone features is performed using a convolutional neural network, and the recognition of children's emotions is obtained by processing tone features at several consecutive time points within a certain period of time using a long short-term memory network.

5. A seatbelt control method based on a child's status according to claim 1, characterized in that, The method for identifying the seat belt status is as follows: when the variance is lower than the first threshold, the seat belt status is without fluctuation; when the variance is greater than the first threshold but lower than the second threshold, the seat belt status is with small fluctuation; when the variance is greater than the second threshold but lower than the third threshold, the seat belt status is with large fluctuation.

6. A seatbelt control device based on a child's status, characterized in that, include: The locking module is configured to control the child's seatbelt buckle to lock in response to a buckle locking command. The monitoring module is configured to: determine whether a collision has occurred; if so, unlock the seat belt buckle; otherwise, acquire the child's heart rate, seat belt extension length, and child's voice at several consecutive time intervals; and calculate the average heart rate based on the child's heart rate at several consecutive time intervals to determine the child's heart rate range. Based on the seat belt extension length at several consecutive moments, the seat belt status is identified by calculating the variance of the seat belt extension length. Based on children's speech at several consecutive moments, tone features are extracted to identify children's emotions; the child's state is determined based on the child's heart rate range, seat belt status, and the child's emotions. The control module is configured to control the seat belt extension length based on the child's state. The child's state includes sleeping, normal, and agitated, and an alarm command is sent when the child's state is agitated. The steps for controlling the seat belt extension length include: Adjust the seat belt tension level according to the child's condition; Obtain the child's weight, height, and age, and in conjunction with the seat belt extension length rating, retrieve the upper limit of the seat belt extension length; Seat belts are controlled based on the upper limit of their stretch length.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the steps of a child-based seatbelt control method as described in any one of claims 1-5.

8. A computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the steps of the seat belt control method based on a child's state as described in any one of claims 1-5.

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