Control method of child safety seat

Abstract

The invention provides a control method of a child safety seat, and relates to the technical field of child safety seats. The control method comprises the following steps: acquiring a signal sent by a detection device; judging whether the back of the seat is in a sliding-out position or not; if it is judged that the seat back is located at the sliding-out position, the driving mechanism is controlled to drive the seat back to return to the initial position, by means of the control method, the seat back can be automatically controlled to return to the original position, the operation difficulty is lowered, and potential safety hazards are avoided.

Description

Technical Field

[0001] This application relates to the technical field of child safety seats, and more particularly, to a control method for a child safety seat. Background Art

[0002] With the development of the child safety seat industry, the function of the backrest sliding out has gradually gained favor among child seat manufacturers and consumers due to its convenience for children to ride and be taken out. However, there are still the following problems in actual use: after parents hold the child with both hands and get out of the seat, they still need to use one hand or other parts of the body to manually push the backrest back to its original position, which is not only inconvenient to operate but also poses a safety hazard. Summary of the Invention

[0003] The objectives of this application include, for example, providing a control method for a child safety seat that can automatically control the backrest to return to its original position, reduce the operation difficulty, and avoid safety hazards.

[0004] The embodiments of this application can be implemented as follows:

[0005] The embodiments of this application provide a control method for a child safety seat, which is applied to a child safety seat. The child safety seat includes a seat base, a seat backrest movably disposed on the seat base, and a driving mechanism for driving the seat backrest to move. A detection device for detecting a child getting out of the seat is disposed on the seat base or the seat backrest. The control method includes:

[0006] Obtain the signal sent by the detection device;

[0007] Determine whether the seat backrest is in the slid-out position;

[0008] If it is determined that the seat backrest is in the slid-out position, control the driving mechanism to drive the seat backrest to return to the initial position.

[0009] Optionally, the detection device is a buckle detection device. The step of obtaining the signal sent by the detection device includes:

[0010] Obtain the signal sent by the buckle detection device indicating that the buckle is opened.

[0011] Optionally, the detection device is a human body infrared induction device. The step of obtaining the signal sent by the detection device includes:

[0012] Obtain the signal sent by the human body infrared induction device indicating the absence of a human body.

[0013] Optionally, the detection device is an ambient light sensor. The step of obtaining the signal sent by the detection device includes:

[0014] Obtain the signal sent by the ambient light sensor indicating an increase in light intensity.

[0015] Optionally, the detection device is a Bluetooth module, and the step of obtaining the signal sent by the detection device includes:

[0016] Obtain the signal sent by the Bluetooth module indicating that the Bluetooth connection is disconnected.

[0017] Optionally, a microswitch is provided on the seat base or the seat back, and the microswitch is used to be triggered during the movement of the seat back. The step of determining whether the seat back is in the slid-out position includes:

[0018] Determine whether the seat back is in the slid-out position according to the trigger state of the microswitch.

[0019] Optionally, the drive mechanism includes a motor. The step of determining whether the seat back is in the slid-out position includes:

[0020] Obtain the number of rotations of the motor, and determine whether the seat back is in the slid-out position according to the number of rotations of the motor.

[0021] Optionally, a displacement sensor for detecting the sliding distance of the seat back is provided on the seat base or the seat back. The step of determining whether the seat back is in the slid-out position includes:

[0022] Determine whether the seat back is in the slid-out position according to the signal sent by the displacement sensor.

[0023] Optionally, the control method further includes:

[0024] Determine whether the seat back has returned to the initial position according to the signal sent by the displacement sensor;

[0025] If it is determined that the seat back has returned to the initial position, send a in-place message.

[0026] Optionally, a sound sensor for detecting the sound generated during the movement of the seat back is provided on the seat base or the seat back. The step of determining whether the seat back is in the slid-out position includes:

[0027] Determine whether the seat back is in the slid-out position according to the signal sent by the sound sensor.

[0028] Optionally, the child safety seat includes a timer. If it is determined that the seat back is in the slid-out position, the step of controlling the drive mechanism to drive the seat back to return to the initial position includes:

[0029] If it is determined that the seat backrest is in the slid-out position, control the timer to start timing until the timer finishes timing;

[0030] Control the drive mechanism to drive the seat backrest back to the initial position.

[0031] Optionally, the step of controlling the timer to start timing until the timer finishes timing when it is determined that the seat backrest is in the slid-out position includes:

[0032] If it is determined that the seat backrest is in the slid-out position, control the timer to alternately run between timing and stopping timing until the total running time of the timer reaches a preset time.

[0033] Optionally, the child safety seat includes a battery, and the battery is electrically connected to the detection device to supply power to the detection device; the step of controlling the drive mechanism to drive the seat backrest back to the initial position when it is determined that the seat backrest is in the slid-out position includes:

[0034] If it is determined that the seat backrest is in the slid-out position, control the drive mechanism to drive the seat backrest back to the initial position according to the change in the battery power.

[0035] Optionally, the control method further includes:

[0036] During the process of the seat backrest returning to the initial position, obtain a signal sent by the drive mechanism indicating that the seat backrest encounters an obstacle;

[0037] When obtaining the signal that the seat backrest encounters an obstacle, send out an alarm message.

[0038] The beneficial effects of the control method of the child safety seat provided by the embodiments of the present application include, for example: in order to be able to automatically control the backrest to return to its original position, a control method for a child safety seat is designed. The child safety seat includes a seat base, a seat backrest movably arranged on the seat base, and a drive mechanism for driving the movement of the seat backrest. A detection device for detecting a child leaving the seat is arranged on the seat base or the seat backrest. When a parent holds the child away from the seat backrest with both hands, a signal sent by the detection device is obtained. At this time, it is further determined whether the seat backrest is in the slid-out position. If it is determined that the seat backrest is already in the slid-out position, control the drive mechanism to drive the seat backrest back to the initial position, so that the seat backrest can be automatically controlled to return to its original position without additional operation, reducing the operation difficulty and also avoiding the safety hazard of the parent holding the child and manually pushing the seat backrest back. Description of the Drawings

[0039] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0040] Figure 1 It is an exploded view of the child safety seat in the embodiment of the present application;

[0041] Figure 2 It is a schematic diagram of the seat back in the initial position in the embodiment of the present application;

[0042] Figure 3 It is a schematic diagram of the seat back in the slid-out position in the embodiment of the present application;

[0043] Figure 4 It is a flowchart of steps S1 - S3 in the control method of the embodiment of the present application;

[0044] Figure 5 It is a flowchart of steps S4 - S5 in the control method of the embodiment of the present application;

[0045] Figure 6 It is a flowchart of sub-steps S31 - S32 in the control method of the embodiment of the present application.

[0046] Icons: 100 - seat base; 110 - rotating disk; 200 - seat back. Detailed implementation manners

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0048] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application to be protected, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0049] It should be noted that: similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0050] In the description of the present application, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed during use. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0051] In addition, if terms such as "first", "second", etc. are only used for distinguishing descriptions, they cannot be understood as indicating or implying relative importance.

[0052] It should be noted that, without conflict, the features in the embodiments of the present application can be combined with each other.

[0053] As disclosed in the background art section, a child safety seat with a function of sliding out the backrest still has the following problems in actual use: after the parent holds the child with both hands and gets out of the seat, they still need to use one hand or other parts of the body to manually push the backrest back to its original position. This is not only inconvenient to operate but also poses a safety hazard. The embodiments of the present application provide a control method for a child safety seat, at least for solving this technical problem.

[0054] Please refer to Figures 1 - 3 , the embodiments of the present application provide a control method for a child safety seat, which is applied to a child safety seat. The child safety seat includes a seat base 100, a seat backrest 200 movably arranged on the seat base 100, and a driving mechanism for driving the movement of the seat backrest 200. A detection device for detecting a child leaving the seat is arranged on the seat base 100 or the seat backrest 200.

[0055] A rotating disk 110 is rotatably arranged on the seat base 100, and the rotation of the rotating disk 110 is driven by a driving member such as a motor; the seat backrest 200 is slidably arranged on the rotating disk 110 so that the seat backrest 200 can slide out and retract in the horizontal direction. The driving mechanism is used to drive the seat backrest 200 to slide out and retract, and the detection device is used to detect whether a child leaves the seat.

[0056] The child safety seat further includes a controller, which is electrically connected to the driving mechanism and the detection device at the same time, and can implement the above-mentioned control method for the child safety seat. Among them, the controller can be an integrated circuit chip with the ability to process signals. The above-mentioned controller can be a general-purpose processor, including a central processing unit, and can also be a single-chip microcomputer, a micro-control unit, a complex programmable logic device, a field programmable gate array, an application-specific integrated circuit, an embedded ARM and other chips.

[0057] Please refer to Figure 4 , the control method includes:

[0058] Step S1: Obtain the signal sent by the detection device.

[0059] Step S2: Determine whether the seat backrest 200 is in the slid-out position.

[0060] Step S3: If it is determined that the seat backrest 200 is in the slid-out position, control the drive mechanism to drive the seat backrest 200 back to the initial position.

[0061] In the above steps, the controller obtains the signal sent by the detection device in real time. When the parent holds the child in both hands and takes the child away from the seat backrest 200, the controller obtains the signal sent by the detection device. At this time, the controller then determines whether the seat backrest 200 is in the slid-out position. If it is determined that the seat backrest 200 is already in the slid-out position, control the drive mechanism to drive the seat backrest 200 back to the initial position, so that the seat backrest 200 can be automatically controlled to return to its original position without additional operations, reducing the operation difficulty and also avoiding the safety hazard of manually pushing back the seat backrest 200 while the parent is holding the child.

[0062] In some embodiments, the detection device is a buckle detection device, and step S1 includes: obtaining the signal sent by the buckle detection device indicating that the buckle is opened.

[0063] A buckle for restraining the child is provided on the seat backrest 200, and the buckle detection device is used to detect whether the buckle is opened; the buckle detection device is electrically connected to the controller. Once the buckle detection device detects that the buckle is opened, the controller can obtain the signal sent by the buckle detection device indicating that the buckle is opened. At this time, if it is determined that the seat backrest 200 is already in the slid-out position, control the drive mechanism to drive the seat backrest 200 back to the initial position.

[0064] In some embodiments, the detection device is a human body infrared induction device, and step S1 includes: obtaining the signal sent by the human body infrared induction device indicating the absence of a human body.

[0065] The human body infrared induction device is used to detect whether there is a human body on the seat backrest 200. The human body infrared induction device is electrically connected to the controller. Once the human body infrared induction device detects the absence of a human body on the seat backrest 200, the controller can obtain the signal sent by the human body infrared induction device indicating the absence of a human body. At this time, if it is determined that the seat backrest 200 is already in the slid-out position, control the drive mechanism to drive the seat backrest 200 back to the initial position.

[0066] In some embodiments, the detection device is an ambient light sensor, and step S1 includes: obtaining the signal sent by the ambient light sensor indicating an increase in light intensity.

[0067] The ambient light sensor is used to detect the light intensity around the seat back 200. When a child sits on the seat back 200, due to the occlusion of the child's body, the light intensity around the seat back 200 remains in a relatively stable state; when the child leaves the seat, the light intensity detected by the ambient light sensor will suddenly increase and change greatly, and the change amount of the light intensity can be determined according to the actual product usage situation.

[0068] The ambient light sensor is electrically connected to the controller. Once the light intensity detected by the ambient light sensor suddenly increases and changes greatly, the controller can obtain the signal sent by the ambient light sensor indicating an increase in light intensity. At this time, if it is determined that the seat back 200 has been in the slid-out position, the control drive mechanism is controlled to drive the seat back 200 back to the initial position.

[0069] In some embodiments, the detection device is a Bluetooth module, and step S1 includes: obtaining the signal sent by the Bluetooth module indicating the disconnection of the Bluetooth connection.

[0070] The Bluetooth module is used to establish a Bluetooth connection with a Bluetooth device such as the parent's mobile phone or the smart bracelet worn by the child. When the parent picks up the child and moves away from the seat by a certain distance, the Bluetooth module will disconnect the Bluetooth connection with the parent's mobile phone or the smart bracelet worn by the child.

[0071] The Bluetooth module is electrically connected to the controller. Once the Bluetooth module disconnects the Bluetooth connection with a Bluetooth device such as the parent's mobile phone or the smart bracelet worn by the child, the controller can obtain the signal sent by the Bluetooth module indicating the disconnection of the Bluetooth connection. At this time, if it is determined that the seat back 200 has been in the slid-out position, the control drive mechanism is controlled to drive the seat back 200 back to the initial position.

[0072] In some embodiments, a microswitch is provided on the seat base 100 or the seat back 200. The microswitch is used to be triggered during the movement of the seat back 200. Step S2 includes: judging whether the seat back 200 is in the slid-out position according to the trigger state of the microswitch.

[0073] A trigger piece can be provided on the seat back 200, and the microswitch is provided on the seat base 100. The trigger piece abuts against the microswitch during the movement of the seat back 200 to trigger the microswitch. When the microswitch is triggered, the seat back 200 is in the slid-out position.

[0074] The microswitch is electrically connected to the controller. Once the microswitch is triggered, the controller determines that the seat back 200 is in the slid-out position.

[0075] In other embodiments, the microswitch can also be replaced with an optoelectronic switch, a Hall sensor, a reed switch, etc.

[0076] In some embodiments, the driving mechanism includes a motor, and step S2 includes: obtaining the number of rotations of the motor, and determining whether the seat backrest 200 is in the slid-out position according to the number of rotations of the motor.

[0077] The motor is electrically connected to the controller. During rotation, the motor sends the number of rotations to the controller, and the controller can determine whether the seat backrest 200 is in the slid-out position according to the difference between the number of rotations of the motor when the seat backrest 200 is in the initial position and the current number of rotations.

[0078] Once the difference between the number of rotations of the motor when the seat backrest 200 is in the initial position and the current number of rotations reaches a preset value, the controller determines that the seat backrest 200 is in the slid-out position.

[0079] In an alternative embodiment, when the seat backrest 200 is in the initial position, the controller clears the number of rotations of the motor, so that the current number of rotations of the motor is the same each time the seat backrest 200 reaches the slid-out position. As long as the motor reaches this current number of rotations, the controller can determine that the seat backrest 200 is in the slid-out position.

[0080] In some embodiments, a displacement sensor for detecting the sliding distance of the seat backrest 200 is provided on the seat base 100 or the seat backrest 200, and step S2 includes: determining whether the seat backrest 200 is in the slid-out position according to the signal sent by the displacement sensor.

[0081] The displacement sensor detects the sliding distance of the seat backrest 200 during the process of the seat backrest 200 sliding from the initial position to the slid-out position, and sends the sliding distance signal of the seat backrest 200 to the controller. When the sliding distance of the seat backrest 200 from the initial position reaches a preset distance, the controller determines that the seat backrest 200 is in the slid-out position.

[0082] Please refer to Figure 5 , the control method further includes:

[0083] Step S4: Determine whether the seat backrest 200 has returned to the initial position according to the signal sent by the displacement sensor.

[0084] Step S5: If it is determined that the seat backrest 200 has returned to the initial position, send an in-place message.

[0085] It should be noted that during the process of the seat backrest 200 sliding from the extended position to the initial position, the displacement sensor detects the sliding distance of the seat backrest 200 and sends the distance signal of the sliding of the seat backrest 200 to the controller. When the sliding distance of the seat backrest 200 from the extended position reaches the preset distance, the controller determines that the seat backrest 200 is in the initial position. When the controller determines that the seat backrest 200 has returned to the initial position, the controller issues a in-place message to prompt the user, and this in-place message can be a sound message or a light message.

[0086] In some embodiments, a sound sensor for detecting the sound generated during the movement of the seat backrest 200 is provided on the seat base 100 or the seat backrest 200. Step S2 includes: determining whether the seat backrest 200 is in the extended position according to the signal sent by the sound sensor.

[0087] It should be noted that during the process of the seat backrest 200 sliding out and retracting, different frequencies of sound will be generated when the seat backrest 200 moves to different positions. When the seat backrest 200 slides out to the extended position, a preset frequency of sound is generated. The sound sensor is used to detect the sound during the movement of the seat backrest 200 in real time and send the sound signal to the controller. The controller can analyze the frequency of the sound using a sound recognition algorithm. If the controller analyzes that the frequency of the sound is the preset frequency, it is determined that the seat backrest 200 is in the extended position.

[0088] Please refer to Figure 6 , in some embodiments, the child safety seat includes a timer. Step S3 includes:

[0089] Sub-step S31: If it is determined that the seat backrest 200 is in the extended position, control the timer to start timing until the timing of the timer is completed.

[0090] Sub-step S32: Control the drive mechanism to drive the seat backrest 200 to return to the initial position.

[0091] The timer is electrically connected to the controller, and the timer can perform positive timing or countdown timing.

[0092] In the case of positive timing of the timer, if it is determined that the seat backrest 200 is in the extended position, the timer starts positive timing. After the positive timing is completed, the controller controls the drive mechanism to drive the seat backrest 200 to return to the initial position.

[0093] In the case of countdown timing of the timer, if it is determined that the seat backrest 200 is in the extended position, the timer starts countdown timing. After the countdown timing is completed, the controller controls the drive mechanism to drive the seat backrest 200 to return to the initial position.

[0094] Adopting the method of controlling the seat backrest 200 to retract after the timing ends can give parents enough time to organize items or perform other operations after picking up the child.

[0095] The timing time can be determined according to actual needs. For example, users can set the timing time through the operation buttons on the seat or the mobile phone APP, and the timing time can be selected from 5 to 60 seconds.

[0096] When the detection device is a human infrared sensor, if it is determined that the seat backrest 200 is in the slid-out position, the timer is controlled to start timing. If no new human body is detected during the timing process, after the timing is completed, the controller controls the driving mechanism to drive the seat backrest 200 back to the initial position.

[0097] When the detection device is a Bluetooth module, if it is determined that the seat backrest 200 is in the slid-out position, the timer is controlled to start timing. If no new Bluetooth connection request is detected during the timing process, after the timing is completed, the controller controls the driving mechanism to drive the seat backrest 200 back to the initial position.

[0098] When the detection device is an ambient light sensor, if it is determined that the seat backrest 200 is in the slid-out position, the timer is controlled to start timing. If the light intensity detected by the ambient light sensor hardly changes during the timing process, after the timing is completed, the controller controls the driving mechanism to drive the seat backrest 200 back to the initial position.

[0099] Further, sub-step S31 includes: if it is determined that the seat backrest 200 is in the slid-out position, the timer is controlled to alternately run between timing and stopping timing until the total running time of the timer reaches the preset time.

[0100] If it is determined that the seat backrest 200 is in the slid-out position, the controller first controls the timer to time. After the timing (such as 0.5 seconds) is completed, the controller controls the timer to stop timing. After stopping timing for a period of time (such as 2 seconds), the controller then controls the timer to time again, and so on, until the total running time of the timer reaches the preset time (such as 5 seconds), where the total running time of the timer includes the timing duration and the stopping timing duration.

[0101] Adopting the intermittent timing method can enable the timer to switch between the working state and the non-working state, which helps to reduce the power consumption of the timer.

[0102] In some embodiments, the child safety seat includes a battery, and the battery is electrically connected to the detection device to supply power to the detection device; step S3 includes: if it is determined that the seat backrest 200 is in the slid-out position, the driving mechanism is controlled to drive the seat backrest 200 back to the initial position according to the change in the battery power.

[0103] The battery is built into the child safety seat and is used to supply power to the detection device. Therefore, the battery power will gradually decrease during operation. The battery can be charged by an external power source when the battery power is low.

[0104] The battery is electrically connected to the controller. The controller can obtain the battery power information. If it is determined that the seat backrest 200 is in the slid-out position, the controller starts to monitor the change in the battery power. When the battery power drops to a certain extent (such as the battery power drops by 5%), the controller controls the driving mechanism to drive the seat backrest 200 back to the initial position.

[0105] The method of dynamically delaying according to the actual battery power does not require additional setting of time parameters, and when the battery power is low, it can preferentially ensure the normal operation of the function of retracting the seat backrest 200.

[0106] In some embodiments, the control method further includes: during the process of the seat backrest 200 retracting to the initial position, obtaining a signal sent by the driving mechanism indicating that the seat backrest 200 encounters an obstacle; when obtaining the signal that the seat backrest 200 encounters an obstacle, sending out an alarm message.

[0107] The signal sent by the driving mechanism indicating that the seat backrest 200 encounters an obstacle can be a current feedback signal sent by a sensor (such as a grating or an encoder disk) on the motor shaft when the motor encounters an obstacle. When the controller obtains the signal that the seat backrest 200 encounters an obstacle, the controller sends out an alarm message to prompt the user. The alarm message can be a sound message or a light message.

[0108] In summary, the embodiments of the present application provide a control method for a child safety seat. When the parent holds the child away from the seat backrest 200 with both hands, the controller obtains the signal sent by the detection device. At this time, it is further determined whether the seat backrest 200 is in the slid-out position. If it is determined that the seat backrest 200 is already in the slid-out position, the controller controls the driving mechanism to drive the seat backrest 200 back to the initial position, so that the seat backrest 200 can be automatically controlled to return to its original position without additional operation, reducing the operation difficulty and also avoiding the safety hazard of manually pushing back the seat backrest 200 while the parent is holding the child.

[0109] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for controlling a child safety seat, characterized in that: Applied to a child safety seat, the child safety seat comprises a seat base, a seat back movably arranged on the seat base, and a driving mechanism for driving the seat back to move, the seat base or the seat back is provided with a detection device for detecting a child leaving the seat, and the control method comprises: Acquiring a signal sent by the detection device; determining whether the seat back is in a slid-out position; If it is determined that the seat back is in the slide-out position, the driving mechanism is controlled to drive the seat back to return to the initial position.

2. The method for controlling a child safety seat according to claim 1, characterized in that: The detection device is a buckle detection device, and the step of obtaining a signal sent by the detection device includes: A signal indicating that the buckle is open and sent by the buckle detection device is obtained.

3. The method for controlling a child safety seat according to claim 1, characterized in that: The detection device is a human infrared sensing device, and the step of obtaining a signal sent by the detection device includes: A signal indicating that no human body exists and sent by the human body infrared sensing device is obtained.

4. The method for controlling a child safety seat according to claim 1, characterized in that: The detection device is an ambient light sensor, and the step of acquiring a signal sent by the detection device includes: A signal indicating an increase in light intensity sent by the ambient light sensor is obtained.

5. The method for controlling a child safety seat according to claim 1, characterized in that: The detection device is a Bluetooth module, and the step of acquiring a signal sent by the detection device includes: A signal indicating a disconnection of the Bluetooth connection sent by the Bluetooth module is obtained.

6. The method for controlling a child safety seat according to claim 1, characterized in that: A micro switch is provided on the seat base or the seat back, and the micro switch is used to be triggered during the movement of the seat back. The step of determining whether the seat back is in the slide-out position includes: Whether the seat back is in the slide-out position is determined according to the triggering state of the micro switch.

7. The method for controlling a child safety seat according to claim 1, characterized in that: The driving mechanism includes a motor, and the step of determining whether the seat back is in the slide-out position includes: The number of rotations of the motor is obtained, and whether the seat back is in the slide-out position is determined according to the number of rotations of the motor.

8. The method for controlling a child safety seat according to claim 1, characterized in that: The seat base or the seat back is provided with a displacement sensor for detecting the sliding distance of the seat back, and the step of determining whether the seat back is in the sliding out position comprises: It is determined whether the seat back is in the slide-out position according to the signal sent by the displacement sensor.

9. The method for controlling a child safety seat according to claim 8, characterized in that: The control method further comprises: Determining whether the seat back has returned to the initial position according to the signal sent by the displacement sensor; If it is determined that the seat back has returned to its initial position, an arrival information is issued.

10. The method for controlling a child safety seat according to claim 1, characterized in that: The seat base or the seat back is provided with a sound sensor for detecting the sound generated during the movement of the seat back, and the step of determining whether the seat back is in the slide-out position includes: It is determined whether the seat back is in the slide-out position according to the signal sent by the sound sensor.

11. The method for controlling a child safety seat according to claim 1, characterized in that: The child safety seat includes a timer, and if it is determined that the seat back is in the slid-out position, the step of controlling the driving mechanism to drive the seat back to return to the initial position includes: If it is determined that the seat back is in the slid-out position, controlling the timer to start timing until the timer expires; The driving mechanism is controlled to drive the seat back to return to an initial position.

12. The method for controlling a child safety seat according to claim 11, characterized in that: If it is determined that the seat back is in the slid-out position, the step of controlling the timer to start timing until the timer expires comprises: If it is determined that the seat back is in the slide-out position, the timer is controlled to alternately run between timing and stopping timing until the total running time of the timer reaches a preset time.

13. The method for controlling a child safety seat according to claim 1, characterized in that: The child safety seat comprises a battery, and the battery is electrically connected to the detection device to supply power to the detection device; If it is determined that the seat back is in the slid-out position, the step of controlling the driving mechanism to drive the seat back to return to the initial position comprises: If it is determined that the seat back is in the slid-out position, the driving mechanism is controlled to drive the seat back to return to the initial position according to the change in the power level of the battery.

14. The method for controlling a child safety seat according to claim 1, characterized in that: The control method further comprises: During the process of the seat back returning to the initial position, obtaining a signal sent by the driving mechanism indicating that the seat back encounters resistance; When a signal that the seat back is blocked is obtained, an alarm message is issued.

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