Multi-terminal control method for child safety seat, and multi-terminal control system

Abstract

A multi-terminal control method for a child safety seat, and a multi-terminal control system. The multi-terminal control system (10) comprises a mobile terminal (200), and a child safety seat (100) and an in-vehicle terminal interconnection system (310) of a vehicle which are in communication connection with the mobile terminal, wherein the in-vehicle terminal interconnection system (310) is further connected to an in-vehicle infotainment product. When running an application program for controlling the child safety seat (100), the mobile terminal (200 acquires state data of the child safety seat (100), processes the state data to obtain a system interface, and then synchronizes the system interface to the in-vehicle terminal interconnection system (310), so as to display the state data on the in-vehicle infotainment product. When sensing a control operation of a user with regard to the in-vehicle infotainment product, the in-vehicle terminal interconnection system (310) sends user control information to the mobile terminal (200), such that the mobile terminal performs state adjustment on the child safety seat. In this way, a driver and a passenger can view or adjust the state of the child safety seat (100) by means of the in-vehicle infotainment product in a traveling scenario, such that potential traveling safety hazards can be effectively reduced.

Description

Multi-terminal control method and system for child safety seat Technical Field

[0001] The present invention relates to the field of child safety seats, and in particular to a multi-terminal control method and system for a child safety seat. Background Art

[0002] Car seat belts act as a restraint and cushioning system, absorbing impact energy and dissipating inertial forces to prevent or mitigate injuries to drivers and passengers. During a collision or emergency braking, seat belts secure passengers to their seats, preventing them from being thrust forward due to inertia and protecting them from secondary impacts. However, car seat belts are designed for adults weighing 36 kg and over 140 cm tall, and are not suitable for children.

[0003] While driving, many parents mistakenly believe that holding their children in their arms while wearing seatbelts is the safest approach. However, the impact of a collision is so strong that children can easily break through the restraints of their parents' arms and get injured. Therefore, installing a child safety seat in the car and properly placing the child in the safety seat is the correct way to protect children while driving.

[0004] As child safety seats become increasingly electronic and intelligent, more and more users are opting for smarter child safety seats, hoping for more intuitive installation instructions and more convenient control methods. With today's intelligently designed child safety seats, users can control the child safety seat using a terminal device. This control process typically involves contactless data exchange between the child safety seat and the terminal device, often involving uplink detection data and downlink control commands.

[0005] When users need to adjust and control child safety seats with children in them, they usually do so through their mobile phones. This control method is more convenient when the car is parked, but in driving scenarios, especially when the driver uses this control method, it neither provides a good user experience nor increases driving safety risks. Summary of the Invention

[0006] The object of the present invention is to provide a multi-terminal control method and system for a child safety seat, so as to improve the problems existing in the prior art.

[0007] The embodiments of the present invention can be implemented as follows:

[0008] In a first aspect, the present invention provides a multi-terminal control method for a child safety seat, which is applied to a multi-terminal control system, wherein the multi-terminal control system includes the child safety seat, a mobile terminal, and an onboard terminal interconnection system of a vehicle, wherein the onboard terminal interconnection system is communicatively connected to an onboard entertainment information product carried by the vehicle; the mobile terminal is communicatively connected to both the child safety seat and the onboard terminal interconnection system, and the mobile terminal is installed with an application for controlling the child safety seat; the method comprises:

[0009] When the mobile terminal runs the application, it obtains status data of the child safety seat and processes the status data before displaying the system interface of the application;

[0010] The mobile terminal synchronizes the system interface to the vehicle terminal interconnection system to display the status data on the vehicle entertainment information product;

[0011] When the in-vehicle terminal interconnection system senses a user's control operation on the in-vehicle entertainment information product, the in-vehicle terminal interconnection system sends corresponding user control information to the mobile terminal;

[0012] The mobile terminal adjusts the state of the child safety seat based on the user control information.

[0013] In an optional embodiment, the step of synchronizing the system interface with the vehicle terminal interconnection system by the mobile terminal to display the status data on the vehicle entertainment information product includes:

[0014] The mobile terminal transcodes the video stream of the system interface based on the interface parameters of the in-vehicle entertainment information product to obtain encoded data;

[0015] The mobile terminal sends the encoded data to the vehicle terminal interconnection system;

[0016] The in-vehicle terminal interconnection system decodes the encoded data to display the status data on the in-vehicle entertainment information product.

[0017] In an optional embodiment, after the step of the mobile terminal acquiring the status data of the child safety seat and processing the status data and then displaying the system interface of the application, the method further includes:

[0018] The mobile terminal acquires control data when sensing a user's control operation on the system interface;

[0019] The mobile terminal generates a control instruction based on the control data, and sends the control instruction to the child safety seat;

[0020] The child safety seat executes the control instruction to adjust its state.

[0021] In an optional embodiment, the step of the mobile terminal adjusting the state of the child safety seat based on the user control information includes:

[0022] The mobile terminal generates a control instruction based on the user control information, and sends the control instruction to the child safety seat;

[0023] The child safety seat executes the control instruction to adjust its state.

[0024] In an optional embodiment, the user's control operation on the in-vehicle entertainment information product is an air gesture operation, a touch operation or a voice input operation of the user on the in-vehicle entertainment information product.

[0025] In an optional embodiment, the control instruction is used to instruct the child safety seat to adjust a seat position, adjust a temperature, or adjust a ventilation setting.

[0026] In a second aspect, the present invention provides a multi-terminal control system, comprising a child safety seat, a mobile terminal, and an onboard terminal interconnection system of an automobile, wherein the onboard terminal interconnection system is communicatively connected to an onboard entertainment information product carried by the automobile; the mobile terminal is communicatively connected to the child safety seat and the onboard terminal interconnection system, and the mobile terminal is installed with an application for controlling the child safety seat;

[0027] The mobile terminal is used to obtain status data of the child safety seat when running the application, and display the system interface of the application after processing the status data;

[0028] The mobile terminal is further used to synchronize the system interface to the vehicle terminal interconnection system so as to display the status data on the vehicle entertainment information product;

[0029] The vehicle terminal interconnection system is used to send corresponding user control information to the mobile terminal when sensing the user's control operation on the vehicle entertainment information product;

[0030] The mobile terminal is further configured to adjust the state of the child safety seat based on the user control information.

[0031] In an optional embodiment, the mobile terminal is further configured to perform video stream transcoding on the system interface based on interface parameters of the in-vehicle entertainment information product to obtain encoded data;

[0032] The mobile terminal is further configured to send the encoded data to the vehicle terminal interconnection system;

[0033] The in-vehicle terminal interconnection system is further used to decode the encoded data so as to display the status data on the in-vehicle entertainment information product.

[0034] In an optional embodiment, the mobile terminal is further configured to obtain control data when sensing a user's control operation on the system interface;

[0035] The mobile terminal is further configured to generate a control instruction based on the control data, and send the control instruction to the child safety seat;

[0036] The child safety seat is further configured to execute the control instruction to adjust the state.

[0037] In an optional embodiment, the mobile terminal is further configured to generate a control instruction based on the user control information, and send the control instruction to the child safety seat;

[0038] The child safety seat is further configured to execute the control instruction to adjust the state.

[0039] Compared with the prior art, the embodiment of the present invention provides a multi-terminal control method and system for a child safety seat. The multi-terminal control system includes a mobile terminal and a child safety seat and a vehicle-mounted terminal interconnection system that are communicatively connected thereto. The vehicle-mounted terminal interconnection system is communicatively connected to the vehicle-mounted entertainment information product installed in the vehicle. When the mobile terminal is used to control the running application of the child safety seat, it obtains the status data of the child safety seat and displays the system interface of the application after processing. The system interface is then synchronized to the vehicle-mounted terminal interconnection system to display the status data on the vehicle-mounted entertainment information product. When the vehicle-mounted terminal interconnection system senses the user's control operation on the vehicle-mounted entertainment information product, it sends the corresponding user control information to the mobile terminal so that the mobile terminal adjusts the status of the child safety seat based on the user control information. In this way, in a driving scenario, the driver and passengers can view the status of the child safety seat through the vehicle-mounted entertainment information product, which can effectively reduce driving safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0041] FIG1 is an architecture diagram of a multi-terminal control system provided by an embodiment of the present invention.

[0042] FIG2 is a flow chart of a multi-terminal control method for a child safety seat provided by an embodiment of the present invention.

[0043] FIG3 is a second flow chart of a multi-terminal control method for a child safety seat provided by an embodiment of the present invention.

[0044] FIG4 is an interactive topology diagram of a multi-terminal control system provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0047] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0048] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0049] As child safety seats become increasingly electronic and intelligent, more and more users are opting for smarter child safety seats, hoping for more intuitive installation instructions and more convenient control methods. With today's intelligently designed child safety seats, users can control the child safety seat using a terminal device. This control process typically involves contactless data exchange between the child safety seat and the terminal device, often involving uplink detection data and downlink control commands.

[0050] When users need to adjust and control child safety seats with children in them, they usually do so through their mobile phones. This control method is more convenient when the car is parked, but in driving scenarios, especially when the driver uses this control method, it neither provides a good user experience nor increases driving safety risks.

[0051] Another existing method for controlling child safety seats involves installing a child safety seat control program as a third-party application on the vehicle's in-vehicle computer (the abbreviation for the in-vehicle infotainment system installed in the car). This allows the computer to directly access child safety seat data for user viewing and control. Communication between the computer and the child safety seat can involve short-range communication methods such as Bluetooth and mobile hotspots, as well as long-range communication using fourth-generation or fifth-generation mobile communication technologies in conjunction with a cloud service backend.

[0052] However, data exchange between child safety seats and vehicle computers still presents numerous challenges. Regarding short-range communication, differences in wireless communication technologies, underlying protocol stacks, and data definitions can lead to compatibility issues between child safety seats and vehicle computers from different manufacturers. For example, some car models utilize Bluetooth Low Energy technology only for car keys, making child safety seats using Bluetooth communications incompatible with these vehicles.

[0053] In terms of remote communication methods, the data interaction between the child safety seat and the car computer will involve the cloud service background of the child safety seat manufacturer. However, due to the strict data management specifications and user privacy regulations of the automobile manufacturers, this kind of remote communication is very likely to be impossible to achieve.

[0054] Furthermore, there are compatibility issues between child safety seat applications and vehicle computer displays. Because vehicle computer display screens vary in size across different car manufacturers, child safety seat manufacturers must develop applications for different vehicle computers to accommodate a wider range of vehicle models. This significantly increases development costs and inefficiencies. Furthermore, the maintainability of each application version is extremely low (due to limited over-the-air firmware upgrades on vehicle computers), and third-party applications are not user-friendly.

[0055] Based on the discovery of the above technical problems, the inventors have proposed the following technical solutions after creative work to solve or improve the above problems. It should be noted that the defects existing in the solutions in the above prior art are the results obtained by the inventors after practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed in the embodiments of this application below for the above problems should all be the contributions made by the inventors to this application in the process of invention and creation, and should not be understood as technical contents known to those skilled in the art.

[0056] Please refer to Figure 1, which is an architectural diagram of a multi-terminal control system provided by an embodiment of the present invention. The multi-terminal control system 10 includes a child safety seat 100, a mobile terminal 200, and an in-vehicle terminal interconnection system 310 of a car 300. The in-vehicle terminal interconnection system 310 is also communicatively connected to an in-vehicle entertainment information product 320 installed in the car 300.

[0057] The mobile terminal 200 is in communication with the child safety seat 100 and the vehicle-mounted terminal interconnection system 310 , and an application for controlling the child safety seat is installed in the mobile terminal 200 .

[0058] Among them, the in-vehicle terminal interconnection system 310 is a system built into many new car models. This type of system standardizes the presentation of appearance elements at the development end, and can adaptively display mobile terminal applications on different display devices, making it convenient for users to use standardized third-party applications in in-vehicle infotainment products.

[0059] Optionally, the mobile terminal 200 may be a user's smartphone, smart tablet, or smart wearable device. The communication method between the child safety seat 100 and the mobile terminal 200 may be short-range wireless communication, such as Bluetooth or a mobile hotspot. The communication method between the mobile terminal 200 and the vehicle-mounted terminal interconnection system 310 may be wired communication, such as a USB data cable connection, or short-range wireless communication, such as Bluetooth or a mobile hotspot. The present invention does not limit the communication method between the child safety seat 100 and the mobile terminal 200 or the communication method between the mobile terminal 200 and the vehicle-mounted terminal interconnection system 310.

[0060] Please refer to FIG2 , which is a flow chart of a multi-terminal control method for a child safety seat according to an embodiment of the present invention. The method is executed by the multi-terminal control system described above. The method includes the following steps S101 to S104:

[0061] S101. When running an application, the mobile terminal obtains status data of the child safety seat, processes the status data, and displays it on the system interface of the application.

[0062] In this embodiment, the child safety seat status data may include, but is not limited to, seat position data, temperature data, child seating status, buckle data, etc. When the mobile terminal runs an application, it can obtain the status data from the child safety seat and then display the application's system interface based on the status data. That is, the user can view the child safety seat status data on the application's system interface displayed on the mobile terminal.

[0063] S102: The mobile terminal synchronizes the system interface to the vehicle terminal interconnection system to display status data on the vehicle entertainment information product.

[0064] In this embodiment, the mobile terminal can synchronize the system interface of the application to the vehicle terminal interconnection system, so that the vehicle terminal interconnection system can adaptively display the system interface on the vehicle entertainment information product, allowing the user to view the status data of the child safety seat.

[0065] Optionally, the mobile terminal can initiate interface synchronization with the vehicle terminal interconnection system in the following three situations:

[0066] (1) When the mobile terminal is connected to the in-vehicle entertainment information product, interface synchronization can be triggered;

[0067] (2) Interface synchronization can be automatically initiated when the child safety seat is active (for example, when the vehicle is started and a passenger is detected sitting in the child safety seat);

[0068] (3) The user manually requests synchronization. For example, the user can select a specific interface synchronization option in the application of the mobile terminal, such as when the user enters the device mapping interface, or when the user controls the device.

[0069] S103. When the vehicle terminal interconnection system senses the user's control operation on the vehicle entertainment information product, it sends the corresponding user control information to the mobile terminal.

[0070] S104: The mobile terminal adjusts the status of the child safety seat based on the user control information.

[0071] In this embodiment, the in-vehicle entertainment and information product is a smart in-vehicle screen. User control operations on the in-vehicle entertainment and information product can be air gestures, touch controls, or voice input. Correspondingly, the user control information returned to the mobile terminal by the in-vehicle terminal interconnection system is gesture information, touch information, or user voice input. The mobile terminal can adjust the status of the child safety seat based on the user control information synchronized back by the in-vehicle terminal interconnection system.

[0072] It can be understood that the various sensors built into the in-vehicle entertainment information products can identify and perceive the user's control operations, and the in-vehicle terminal interconnection system can obtain the user control information, and then the in-vehicle terminal interconnection system can transmit the user control information back to the mobile terminal.

[0073] In a multi-terminal control method for a child safety seat provided by an embodiment of the present invention, a mobile terminal can synchronize the application's system interface with an in-vehicle terminal interconnection system to display status data on an in-vehicle entertainment and information product. Upon detecting a user's control operation on the in-vehicle entertainment and information product, the in-vehicle terminal interconnection system sends the corresponding user control information to the mobile terminal. The mobile terminal then adjusts the child safety seat's status based on the user control information. This method allows users to control child safety seats through in-vehicle entertainment and information products, effectively reducing driving safety risks.

[0074] In an optional implementation, the sub-steps of S102 may include S1021 to S1023:

[0075] S1021. The mobile terminal transcodes the video stream of the system interface based on the interface parameters of the in-vehicle entertainment information product to obtain encoded data.

[0076] In this embodiment, the mobile terminal can perform video stream transcoding on the system interface based on the interface parameters of the in-vehicle entertainment information product to obtain encoded data, which is digitized video and audio data.

[0077] S1022. The mobile terminal sends the encoded data to the vehicle terminal interconnection system.

[0078] S1023. The in-vehicle terminal interconnection system decodes the encoded data to display the status data on the in-vehicle entertainment information product.

[0079] In this embodiment, the in-vehicle terminal interconnection system decodes the encoded data, and then displays the page of the in-vehicle entertainment information product as the system interface of the application program after adaptive processing.

[0080] In an optional implementation, the sub-steps of step S104 may include:

[0081] S1041. The mobile terminal generates a control instruction based on the user control information and sends the control instruction to the child safety seat;

[0082] S1042. The child safety seat executes a control instruction to adjust its status.

[0083] In this embodiment, the child safety seat can support the user to adjust the seat position, adjust the temperature or adjust the ventilation settings, etc. through the in-vehicle entertainment information product.

[0084] Specifically, the control command can be used to instruct the child safety seat to adjust its seat position, temperature, or ventilation settings. Correspondingly, after executing the control command, the child safety seat can send feedback information to the mobile terminal. This feedback information can include execution results or current status data. The mobile terminal can then update the system interface based on this information and synchronize the updated system interface with the in-vehicle entertainment information product.

[0085] In an optional implementation, the user may also directly use the mobile terminal to directly control the child safety seat. Based on FIG2 , referring to FIG3 , the following steps may be further included after the above step S101:

[0086] S105 : When the mobile terminal senses a user's control operation on the system interface, the mobile terminal adjusts the state of the child safety seat based on corresponding control data.

[0087] In this embodiment, the user's control operation on the system interface can be an air gesture operation, a touch operation, or a voice input operation.

[0088] Optionally, the sub-steps of S105 may include S1051 to S1053:

[0089] S1051. When the mobile terminal senses a user's control operation on the system interface, it obtains control data.

[0090] S1052: The mobile terminal generates a control instruction based on the control data, and sends the control instruction to the child safety seat;

[0091] S1053. The child safety seat executes a control instruction to adjust its status.

[0092] In this embodiment, the child safety seat can also support the user to directly adjust the seat position, adjust the temperature or adjust the ventilation settings through the mobile terminal. That is, the control instruction can be used to instruct the child safety seat to adjust the seat position, adjust the temperature or adjust the ventilation settings.

[0093] It should be noted that the execution order of the steps in the above method embodiment is not limited to that shown in the drawings, and the execution order of the steps shall be based on actual application conditions.

[0094] Please refer to Figure 4, which is an interactive topology diagram of a multi-terminal control system provided by an embodiment of the present invention. The child safety seat and the mobile terminal can exchange data via wireless communication using a specific communication protocol. This interaction involves uplinking status data and downlinking control data required by the application.

[0095] To enable in-vehicle infotainment products that don't have integrated child safety seat applications to synchronize data with child safety seats, the in-vehicle terminal interconnection system built into the in-vehicle infotainment product uses a specific communication protocol, using wired communication such as USB or short-range wireless communication such as Bluetooth and mobile hotspots, to enable communication between the mobile terminal and the in-vehicle terminal interconnection system. This allows for the exchange of digital video and audio signals, as well as touch information, allowing the in-vehicle infotainment product to adaptively display the child safety seat's system interface. The in-vehicle terminal interconnection system relies on the in-vehicle infotainment product's operating system, which standardizes the design specifications and presentation rules of interface elements at the development level, presenting predictable application interfaces on various system interfaces and offering excellent compatibility.

[0096] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0097] As Figure 4 clearly shows, there are two types of contactless interaction between users and child safety seats: one is the mobile terminal's system interface, and the other is the in-vehicle infotainment product's adaptive system interface. Users can operate on both interfaces to achieve scenario-based control of the child safety seat. Users can select a control method based on their specific circumstances to control the child's safety status, effectively reducing driving safety risks for the user as a driver. The in-vehicle infotainment product's adaptive system interface display relies on communication between the mobile terminal and the in-vehicle terminal interconnect system. This eliminates the need for in-vehicle infotainment products to install third-party applications (child safety seat applications). This eliminates the need for child safety seat manufacturers to develop software for each type of in-vehicle infotainment product, saving development costs.

[0098] An embodiment of the present invention also provides a multi-terminal control system, which includes a child safety seat, a mobile terminal and a vehicle-mounted terminal interconnection system of a car, wherein the vehicle-mounted terminal interconnection system is communicatively connected to the vehicle-mounted entertainment information product carried by the car; the mobile terminal is communicatively connected to the child safety seat and the vehicle-mounted terminal interconnection system, and the mobile terminal is installed with an application for controlling the child safety seat.

[0099] The mobile terminal is used to obtain the status data of the child safety seat when running the application, and to process the status data and display it on the system interface of the application;

[0100] The mobile terminal is also used to synchronize the system interface to the vehicle terminal interconnection system to display status data on the vehicle entertainment information product;

[0101] The vehicle terminal interconnection system is used to send corresponding user control information to the mobile terminal when sensing the user's control operation on the vehicle entertainment information product;

[0102] The mobile terminal is further used to adjust the status of the child safety seat based on the user control information.

[0103] Optionally, the mobile terminal is also used to transcode the video stream of the system interface based on the interface parameters of the in-vehicle entertainment information product to obtain encoded data; the mobile terminal is also used to send the encoded data to the in-vehicle terminal interconnection system; the in-vehicle terminal interconnection system is also used to decode the encoded data to display status data on the in-vehicle entertainment information product.

[0104] Optionally, the mobile terminal is also used to obtain control data when sensing the user's control operation on the system interface; the mobile terminal is also used to generate control instructions based on the control data and send the control instructions to the child safety seat; the child safety seat is also used to execute the control instructions to adjust the status.

[0105] Optionally, the mobile terminal is further configured to generate a control instruction based on the user control information and send the control instruction to the child safety seat; the child safety seat is further configured to execute the control instruction to adjust its status.

[0106] In summary, an embodiment of the present invention provides a multi-terminal control method and system for a child safety seat. The multi-terminal control system includes a mobile terminal and a child safety seat and a vehicle-mounted terminal interconnection system that are communicatively connected thereto. The vehicle-mounted terminal interconnection system is communicatively connected to the vehicle-mounted entertainment information product carried by the vehicle. When the mobile terminal is used to control the running application of the child safety seat, it obtains the status data of the child safety seat and displays the system interface of the application after processing. The system interface is then synchronized to the vehicle-mounted terminal interconnection system to display the status data on the vehicle-mounted entertainment information product. When the vehicle-mounted terminal interconnection system senses the user's control operation on the vehicle-mounted entertainment information product, it sends the corresponding user control information to the mobile terminal so that the mobile terminal adjusts the status of the child safety seat based on the user control information. In this way, in a driving scenario, the driver and passengers can view the status of the child safety seat through the vehicle-mounted entertainment information product, which can effectively reduce driving safety hazards.

[0107] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A multi-terminal control method for a child safety seat, characterized in that: Applied to a multi-terminal control system, the multi-terminal control system includes the child safety seat, a mobile terminal and an on-board terminal interconnection system of a car, the on-board terminal interconnection system is communicatively connected with an on-board entertainment information product carried by the car; the mobile terminal is communicatively connected with both the child safety seat and the on-board terminal interconnection system, and the mobile terminal is installed with an application for controlling the child safety seat; the method includes: When the mobile terminal runs the application, the mobile terminal obtains the status data of the child safety seat, and displays the system interface of the application after processing the status data; The mobile terminal synchronizes the system interface to the vehicle terminal interconnection system to display the status data on the vehicle entertainment information product; When the in-vehicle terminal interconnection system senses the user's control operation on the in-vehicle entertainment information product, the corresponding user control information is sent to the mobile terminal; The mobile terminal adjusts the state of the child safety seat based on the user control information.

2. The method according to claim 1, characterized in that The step of synchronizing the system interface of the mobile terminal to the vehicle terminal interconnection system so as to display the status data on the vehicle entertainment information product includes: The mobile terminal performs video stream transcoding on the system interface based on the interface parameters of the in-vehicle entertainment information product to obtain encoded data; The mobile terminal sends the encoded data to the vehicle terminal interconnection system; The in-vehicle terminal interconnection system decodes the encoded data to display the status data on the in-vehicle entertainment information product.

3. The method according to claim 1, characterized in that After the step of obtaining the status data of the child safety seat by the mobile terminal and displaying the system interface of the application after processing the status data, the method further includes: The mobile terminal acquires control data when sensing a user's control operation on the system interface; The mobile terminal generates a control instruction based on the control data, and sends the control instruction to the child safety seat; The child safety seat executes the control instruction to adjust its state.

4. The method according to claim 1, characterized in that: The step of adjusting the state of the child safety seat by the mobile terminal based on the user control information comprises: The mobile terminal generates a control instruction based on the user control information, and sends the control instruction to the child safety seat; The child safety seat executes the control instruction to adjust its state.

5. The method according to claim 1, characterized in that The user's control operation on the in-vehicle entertainment information product is the user's air gesture operation, touch operation or voice input operation on the in-vehicle entertainment information product.

6. A multi-terminal control system, characterized in that: The multi-terminal control system includes a child safety seat, a mobile terminal and an on-board terminal interconnection system of a car, wherein the on-board terminal interconnection system is communicatively connected to an on-board entertainment information product carried by the car; the mobile terminal is communicatively connected to the child safety seat and the on-board terminal interconnection system, and the mobile terminal is installed with an application for controlling the child safety seat; The mobile terminal is used to obtain the status data of the child safety seat when running the application, and display the system interface of the application after processing the status data; The mobile terminal is also used to synchronize the system interface to the vehicle terminal interconnection system to display the status data on the vehicle entertainment information product; The vehicle terminal interconnection system is used to send corresponding user control information to the mobile terminal when sensing the user's control operation on the vehicle entertainment information product; The mobile terminal is further used to adjust the state of the child safety seat based on the user control information.

7. The system according to claim 6, characterized in that The mobile terminal is also used to perform video stream transcoding on the system interface based on the interface parameters of the in-vehicle entertainment information product to obtain encoded data; The mobile terminal is also used to send the encoded data to the vehicle terminal interconnection system; The vehicle terminal interconnection system is also used to decode the encoded data to display the status data on the vehicle entertainment information product.

8. The system according to claim 6, characterized in that The mobile terminal is also used to obtain control data when sensing a user's control operation on the system interface; The mobile terminal is further used to generate a control instruction based on the control data, and send the control instruction to the child safety seat; The child safety seat is further used to execute the control instruction to adjust the state.

9. The system according to claim 6, characterized in that The mobile terminal is further used to generate a control instruction based on the user control information, and send the control instruction to the child safety seat; The child safety seat is further used to execute the control instruction to adjust the state.

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