Method for distinguishing left and right of movable rear row control screen of vehicle

Abstract

This application discloses a method for distinguishing left and right positions using a movable rear-seat control screen for vehicles, relating to the field of rear-seat control screen technology. The method includes the following steps: obtaining connection status information between the movable rear-seat control screen and the base of the rear door interior panel control screen; the connection status information includes the conduction status between the positive power port and the ground port, and the conduction status between the positive signal port and the negative signal port; and basing the method on the conduction status between the positive power port and the ground port. This application achieves flexible handheld operation and a stable plug-and-play experience through a mobile phone-like movable control screen combined with a plug-in structure and contact connection design, reducing the barrier to entry and improving human-computer interaction efficiency. Simultaneously, it identifies left and right positions through contact conduction and maintains the determination result, combining a time strategy to achieve functional isolation and dynamic energy consumption management, meeting the needs of multi-user independent control and privacy.

Description

Technical Field

[0001] This application relates to the field of automotive rear seat control screen technology, specifically to a method for distinguishing left and right in a movable automotive rear seat control screen. Background Technology

[0002] With the continuous improvement of automotive intelligence and digitalization, vehicle products are increasingly focusing on enhancing user experience beyond basic travel functions, particularly in terms of convenience, comfort, and entertainment. Currently, mainstream models generally adopt an integrated or connected design for the instrument cluster and central control display in the front row to enhance visual impact and information interaction efficiency. However, in the rear row, due to limitations in vehicle class, space layout, and structural design, rear control screens are typically located in the center armrest (behind the CNSL), rear passenger dashboard, or door trim panels, and are often fixed in place. These fixed rear control screens generally achieve unified control of functions such as air conditioning, seats, and entertainment through the vehicle's in-vehicle system, improving the operational convenience and riding experience for rear passengers to some extent. Furthermore, with the development of multi-screen interaction, some models are beginning to be equipped with multiple rear control terminals to meet the needs of multiple passengers using them simultaneously.

[0003] However, in existing technologies, when a vehicle is equipped with multiple rear-seat control screens, the lack of effective differentiation mechanisms in the hardware structure and system logic of each screen makes it difficult for the system to accurately identify the physical location (e.g., left or right) of each screen, thus hindering independent control of left and right side functions. For example, in scenarios involving seat adjustment, local air conditioning control, or private entertainment content, it is impossible to limit a particular control screen to control only its corresponding side, easily causing operational interference and privacy issues. Furthermore, existing rear-seat control screens are mostly fixed structures, lacking flexible removal and relocation capabilities. Even in designs that incorporate movable control terminals, effective position recognition and status maintenance mechanisms are generally not established, causing the control terminal to lose its original functional affiliation after leaving its installation location, further limiting the realization of independent multi-user interactive experiences.

[0004] Therefore, how to accurately identify the left and right positions of the control screen in the application scenario of a movable control screen and support independent control of the corresponding functions has become a technical problem that urgently needs to be solved in this field.

[0005] The information disclosed in the background section is only intended to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this application is to provide a method for distinguishing left and right in a movable rear-seat control screen for vehicles, so as to solve the problems in the background art mentioned above.

[0007] To achieve the above objectives, this application provides the following technical solution: a method for distinguishing left and right sides of a movable rear-seat control screen in a vehicle, comprising the following steps: Obtain the connection status information between the vehicle's movable rear control screen and the rear door interior panel control screen base. The connection status information includes the conduction status between the power positive port and the ground port, as well as the conduction status between the signal positive port and the signal negative port. Based on the conduction state between the power supply positive port and the ground port, determine whether the vehicle movable rear control screen is in the state inside the control screen base or outside the control screen base, and record the corresponding duration parameter in the state inside the control screen base or outside the control screen base. Based on the conduction state between the positive and negative signal ports, the movable rear control screen of the vehicle is determined to be either the left or right control screen when it is inside the control screen base, and the determination result of left or right control screen is maintained when it is outside the control screen base. Based on the state inside or outside the control panel base, the duration parameters, and the judgment results of the left or right control panel, the corresponding display strategy and electrical control strategy are executed. The left control panel executes the left function control strategy, and the right control panel executes the right function control strategy.

[0008] Preferably, the continuity between the power positive port and the ground port is established through the crimping contact between the bottom contact of the control panel and the elastic contact inside the base. The contact is made of elastic conductive material, and the contact is arranged in sequence along the insertion direction of the control panel as the power positive port, the signal positive port, the signal negative port and the ground port. Stable contact pressure is maintained by the elastic deformation of the contact.

[0009] Preferably, the conduction relationship between the positive signal port and the negative signal port is configured through a preset conductive path inside the base. The left side of the vehicle has a conductive connection structure inside the base, while the right side of the vehicle has a disconnected structure inside the base. Electrical coding is formed through different connection relationships.

[0010] Preferably, during the period when the control panel is detached from the base, the internal storage unit records the most recent position determination result and continuously outputs the corresponding side function control logic throughout the detachment period until the position determination result is updated when the conduction relationship between the power positive port and the ground port is re-established.

[0011] Preferably, the duration parameter is recorded by an internal timing unit, and independent timing is performed for the power-on state inside the base, the power-off state inside the base, and the state detached from the base. When different timing results reach a preset threshold, screen saver display, standby operation, or power-off operation mode is triggered.

[0012] Preferably, the control screen adopts a mobile phone-like structure, and has card slots of different sizes and contours on the upper and lower edges. The lower card slot adopts a trapezoidal outline design, which restricts the insertion direction through geometric differences.

[0013] Preferably, the base is provided with an upper tongue and an ejector structure. The upper tongue is driven by a pressing mechanism to move in the vertical direction to release the control panel from its locked state. The ejector structure is provided with an elastic element for energy storage and release.

[0014] Preferably, the control screen display strategy includes an information display mode and a function control mode. The information display mode is used to present vehicle operation information and user setting information, while the function control mode is used to execute the control logic of the corresponding electrical equipment. The different modes are switched through duration parameters and conduction status changes.

[0015] Preferably, the bottom of the control panel is provided with multiple sets of conductive contacts linearly distributed along the insertion direction. The contacts correspond to the positive power port, the positive signal port, the negative signal port, and the ground port, respectively. An elastic conductive contact structure is provided at the corresponding position inside the base. The conductive contact structure generates continuous contact pressure through deformation. Different conduction paths are configured on the left and right sides of the base. One side forms a closed loop between the positive signal port and the negative signal port through internal conductive connection, while the other side maintains an open circuit structure. The conduction state is kept and recorded in conjunction with the internal storage unit of the control panel.

[0016] Preferably, the control panel body has an upper slot structure and a lower slot structure at both ends along the longitudinal direction. The upper slot has a straight opening outline for guiding and positioning, and the lower slot has a trapezoidal outline and forms a one-way matching relationship with the corresponding insertion structure of the base. The lower slot has linearly distributed conductive contacts embedded in it along the length direction. The conductive contacts are respectively connected to the positive power port, the positive signal port, the negative signal port, and the ground port. The insertion direction is limited by the geometric constraints of the slot.

[0017] The technical effects and advantages provided by this application in the above technical solution are as follows: This application designs the control screen as a movable, smartphone-like form factor, combined with a plug-in installation structure and electrical identification mechanism, enabling rear-seat occupants to flexibly perform interactive operations in different seating postures. Especially with the seats unfolded, users can achieve handheld control without relying on a fixed installation position, significantly improving usability and operational comfort. Simultaneously, through the coordinated design of structural limits and contact connections, the control screen's insertion and removal processes are smoother and more stable, avoiding misoperation and poor contact issues, further enhancing the overall user experience. Furthermore, the smartphone-like interface reduces the difficulty for users to adapt to the in-vehicle system, making the interaction more intuitive and natural, helping to shorten the learning cycle and improve system efficiency, thus demonstrating higher human-computer interaction friendliness in practical applications.

[0018] This application constructs a left / right recognition mechanism based on contact conduction status, enabling the control screen to automatically determine its position when inserted into the base and maintain this determination even after removal from the installation position. This ensures stable output of function assignments and avoids control confusion caused by position changes. Furthermore, combined with time-parameter control logic, the system can automatically switch between display and operating modes according to different usage states, achieving a dynamic balance between information display and energy consumption management. Moreover, the separate control method for left and right functions effectively meets the independent operation needs of different occupants, enhancing personalized experience while strengthening privacy protection during use, making the vehicle's interactive system more suitable for practical applications in multi-user scenarios. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a diagram showing the composition of the control panel base in this application.

[0021] Figure 2 This is a diagram illustrating the installation and operation method of the control panel in this application.

[0022] Figure 3 This is a schematic diagram showing the arrangement of two contacts in this application, which are in contact with the D+ and D- contacts.

[0023] Figure 4 This is a schematic diagram showing the conduction of the D+ and D- contacts on the left side of the base of this application.

[0024] Figure 5 This is a schematic diagram showing the D+ and D- contacts of the base on the right side of this application disconnected.

[0025] Figure 6 This is the determination logic for the rear control screen in this application.

[0026] Figure 7 This is a structural diagram illustrating the control panel of this application.

[0027] Figure 8 A diagram showing the arrangement of a multi-touch structure on the underside of a movable rear-seat control panel in a vehicle, and its position on the control panel itself.

[0028] Figure 9 This diagram defines the electrical parameters of the control panel contacts, where each contact corresponds to the connection relationships of the power supply positive terminal, signal positive terminal, signal negative terminal, and grounding port. Detailed Implementation

[0029] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that the description of this disclosure will be more complete and fully convey the concept of the exemplary embodiments to those skilled in the art.

[0030] This application provides a method for distinguishing left and right sides of a movable rear-seat control screen in a vehicle, including the following steps: Obtain the connection status information between the vehicle's movable rear control screen and the rear door interior panel control screen base. The connection status information includes the conduction status between the power positive port and the ground port, as well as the conduction status between the signal positive port and the signal negative port. Based on the conduction state between the power supply positive port and the ground port, determine whether the vehicle movable rear control screen is in the state inside the control screen base or outside the control screen base, and record the corresponding duration parameter in the state inside the control screen base or outside the control screen base. Based on the conduction state between the positive and negative signal ports, the movable rear control screen of the vehicle is determined to be either the left or right control screen when it is inside the control screen base, and the determination result of left or right control screen is maintained when it is outside the control screen base. Based on the state inside or outside the control panel base, the duration parameters, and the judgment results of the left or right control panel, the corresponding display strategy and electrical control strategy are executed. The left control panel executes the left function control strategy, and the right control panel executes the right function control strategy.

[0031] Specific implementation method one: as follows Figures 1 to 6As shown, in this embodiment, the movable rear-seat control screen of the vehicle adopts an embedded installation structure on the rear door interior panel. A control screen base cavity is provided on the inner side of the rear door interior panel. The control screen base is arranged inclined along the longitudinal direction of the vehicle, with the opening facing the passenger side for easy operation and retrieval. The overall shape of the control screen is similar to a mobile phone structure, and its size matches the inner contour of the base cavity. In terms of structural matching, a small gap is reserved between the outer perimeter frame of the control screen and the inner wall of the base cavity to ensure smooth insertion. At the same time, the stability after insertion is ensured by the vertical limiting structure.

[0032] Inside the control panel base, there is an upper tongue at the top and a lower tongue at the bottom. The upper tongue is set vertically and is linked to the removal button. The removal button is located on the side wall or exposed area of ​​the base for easy one-handed operation. In the initial state, the upper tongue is extended inward and is used to limit and lock the upper end of the control panel after it is inserted. When the user presses the removal button, the removal button moves the upper tongue upward vertically, causing the upper tongue to release the limit on the control panel, thereby releasing the upper constraint of the control panel.

[0033] An ejector structure is located near the bottom of the base. Inside the ejector structure is an elastic element, preferably a compression spring or leaf spring. One end of the elastic element is fixed to the internal support surface of the base, and the other end corresponds to the lower contact surface of the control panel. During the insertion of the control panel, the lower end of the control panel contacts the ejector structure and compresses the elastic element inward, storing energy. When the upper latch releases its locking mechanism, the elastic element releases its stored elastic potential energy, pushing the control panel to move in the opposite direction of insertion, thus automatically ejecting the control panel a certain distance. The user can then directly grasp the control panel to remove it. This mechanical relationship is illustrated in the attached diagram as a control... When the control panel is inserted, it slides inward and compresses the bottom area. After the button is triggered, it pushes outward. In terms of electrical connection, the lower insertion tongue area is equipped with multiple metal conductive contacts. The contacts are arranged along the insertion direction of the control panel. The elastic copper contact structure is preferred to ensure good contact reliability. These include power supply positive contacts and grounding contacts for power supply, as well as signal positive contacts and signal negative contacts for signal identification. Corresponding contact interfaces are provided at the bottom of the control panel. When the control panel is fully inserted into the base, the contacts form a stable conductive path under mechanical clamping, thereby realizing power transmission and signal interaction.

[0034] Regarding the implementation of the left-right differentiation function, the base is designed with different electrical states in the left and right positions. Specifically, the positive and negative signal contacts inside the base on the left side of the vehicle are connected through a conductive path, while the positive and negative signal contacts inside the base on the right side of the vehicle are kept disconnected, or they are differentiated through different impedance paths. Thus, when the control panel is inserted in different positions, the internal circuit of the control panel can detect the difference in the conduction state between the positive and negative signal contacts. By detecting this conduction or open circuit state, the internal logic of the control panel determines whether the physical position of the current control panel is left or right. In the attached figure, this is represented by the different contact connection methods inside the left and right bases, with one side forming a closed loop and the other side being an open circuit.

[0035] In terms of control logic, after the control panel is inserted and a contact connection is established, it first determines whether it is currently inside the base by checking the continuity between the positive power contact and the ground contact. When continuity is detected between the positive power contact and the ground contact, it enters the state inside the base. In this state, it continues to check the continuity between the positive signal contact and the negative signal contact. When continuity is detected, it is determined to be the left control panel; when an open circuit is detected, it is determined to be the right control panel. Subsequently, the software inside the control panel loads the corresponding function configuration interface according to the determination result. For example, the left control panel only displays the left seat adjustment, the left air conditioning zone control, and the left entertainment function card, while the right control panel only displays the corresponding right function, thereby achieving function isolation and user privacy protection. After the control panel is removed from the base, the continuity between the positive power contact and the ground contact disappears, and the control panel enters the state of being detached from the base. At this time, the control panel maintains the left and right determination results obtained when it was last inserted into the base, and does not change due to being detached from the base. This allows the user to continue operating the corresponding side's function while holding the control panel, avoiding functional confusion.

[0036] In terms of timing strategy, the control screen internally records the duration of the state inside and outside the base. When inside the base and the power-on time exceeds a preset threshold, the control screen enters screen saver mode, displaying vehicle information cards. When the power-off time exceeds different thresholds, it sequentially enters standby and power-off states to reduce power consumption. When detached from the base, it also enters standby or power-off states based on the duration, thus balancing user experience and energy consumption control. From the perspective of overall structure and connection, the upper tongue and the removal button constitute a mechanical locking and releasing path, the ejection structure provides elastic ejection power, and the lower tongue area bears the load. The electrical connection and signal recognition functions are integrated. The control panel itself acts as a mobile terminal, forming a plug-in coupling relationship with the base. The mechanical structure, electrical connection, and control logic work together to achieve reliable fixation, convenient removal, and automatic identification and function matching of the left and right positions of the control panel. The positional relationship of each component is clearly shown in the attached diagram. The upper tongue is located at the top and is linked to the buttons, while the lower tongue is located at the bottom and has contacts. The push-out structure is located at the bottom and forms elastic support. After insertion, the contacts form an electrical connection path. The whole system constitutes a simple but complete installation and recognition solution for a movable rear-seat control panel in a vehicle.

[0037] Specific implementation method two: such as Figure 7 As shown, in this embodiment, the movable rear-seat control screen of the vehicle identifies the current usage scenario of the control screen and executes the corresponding strategy by comprehensively judging the electrical connection status and time parameters during the overall system operation. The core judgment basis is based on the conduction status between the power positive port and the ground port and the conduction status between the signal positive port and the signal negative port, and combines the time dimension to form a multi-state switching mechanism, thereby constructing a complete control screen working status management system.

[0038] In terms of structural fit, after the control panel is inserted into the base, its bottom electrical contacts form a crimped connection with the corresponding contacts inside the base, creating a stable conductive path between the power positive port and the ground port. Simultaneously, the signal positive port and signal negative port exhibit different electrical states depending on the structural differences on the left and right sides of the base. This conductive relationship is used as the basis for judgment and is collected in real-time by the control panel's internal circuitry. In the specific judgment process, the presence of a current path between the power positive port and the ground port is first detected to determine if the control panel is currently inside the base. When a closed loop is detected between the two, the control panel is determined to be inside the base. At this time, the control panel enters the charging and preparation stage. When the vehicle is powered on, power is transmitted through the base to the power management unit inside the control panel. The control panel illuminates the display interface and enters normal operation mode. Simultaneously, a timing mechanism is activated to record the duration of being inside the base. When the duration exceeds a preset threshold, the control panel switches from the initial working interface to an information display interface. This interface can display user-preset card content, including but not limited to vehicle speed information, navigation route, ambient weather, current time, and personalized settings. This provides an information display function even when the user does not actively operate the system.

[0039] If the control panel is inside the base but no continuity is detected between the power positive port and the ground port, it indicates that the vehicle is in a power-off state or the power path is interrupted. At this time, the system enters a graded energy-saving strategy based on the duration of the power outage. When the duration of the power outage exceeds threshold two, the control panel exits the information display interface and enters a low-power standby state, shutting down the high-power display and computing units, and retaining only the necessary monitoring circuits. When the duration of the power outage further exceeds threshold three, the control panel enters a completely powered-off state, cutting off the internal power output and retaining only the minimum wake-up capability, thereby achieving power protection when the vehicle is stationary.

[0040] After the control panel detaches from the base, since there is no longer a conductive path between the power positive port and the ground port, the system determines that it is currently in an external state. At this time, the control panel continues to operate by relying on the internal battery power supply. At the same time, an independent timing mechanism is started to record the duration of detachment from the base. When the detachment time exceeds threshold two, the control panel automatically enters standby mode to reduce battery consumption. When the detachment time exceeds threshold three, the control panel performs a power-off operation to further extend the battery life. Throughout the process, the determination of the internal and external state of the base and the time strategy form a dual constraint, which ensures the continuity of user experience while taking into account energy consumption control.

[0041] Regarding left and right position recognition, position determination is achieved by detecting the electrical state between the positive and negative signal ports. When a continuity relationship is detected between the positive and negative signal ports, the control panel identifies it as the left position. At this time, the system loads the left-side exclusive function configuration, including left-side seat adjustment control, left-side air conditioning zone control, and entertainment content interface related to the left-side occupant, and restricts control commands to only act on the relevant electrical equipment on the left. When an open circuit is detected between the positive and negative signal ports, the control panel identifies it as the right position, the system loads the right-side function configuration, and limits the control range to the right-side electrical equipment, thereby achieving functional isolation and occupant privacy protection.

[0042] After the control panel is removed from the base, although the power path is disconnected and it enters the state outside the base, the left and right position determination results are not reset. Instead, they are recorded by the internal storage unit and continuously maintained. This maintenance mechanism continues throughout the entire period of removal from the base until the next time it is reinserted into the base and the electrical status is re-detected. This design ensures that the user can continue to operate the corresponding side function while holding the device, avoiding functional errors caused by position changes.

[0043] In terms of system linkage, the internal software of the control panel determines the current operating strategy based on the status inside and outside the base, the left and right position determination results, and the duration parameter. When inside the base and in a powered-on state, it prioritizes information display and charging functions. When inside the base but in a powered-off state, it gradually enters the energy-saving mode. When outside the base, it controls the operating mode based on the battery status and time parameters. At the same time, the left and right function isolation logic remains effective in any state, so that the control panel can provide a consistent and user-expected interactive experience in different usage scenarios.

[0044] From the perspective of the overall logical structure, this implementation method constructs a multi-dimensional state management mechanism based on electrical conduction status, using time parameters as adjustment means, and using functional configuration as the output result. Through simple and reliable hardware detection methods combined with flexible software strategies, it can achieve accurate state identification and strategy execution of the control panel in different positions (inside and outside the base, left and right) and at different time stages. This not only improves the reliability and response speed of the system, but also effectively reduces the implementation cost, and has good engineering application value and promotion prospects.

[0045] Specific implementation method three: such as Figure 8 and Figure 9 As shown in the figure, in this embodiment, the movable rear control screen of the vehicle adopts a smartphone-like design. Its shape is a flat rectangular structure, with the front being the display area and the back being the shell structure. The edges form a continuous edging contour. As can be seen from the figure, the overall thickness of the control screen is relatively thin, and the side transitions are rounded, which facilitates handheld operation and embedded installation. Moreover, the structural design takes into account both aesthetics and engineering reliability.

[0046] The control panel body structure features an upper and lower locking slot at its longitudinal ends. These slots are located at the top and bottom edges of the control panel, respectively, and extend along the width to form a mating interface. The upper slot primarily engages with the upper limiting structure of the base, while the lower slot engages with the lower supporting structure of the base and the electrical connection area. As can be seen from the attached diagram, the upper and lower slots differ significantly in size and shape. The upper slot has a regular open structure with a relatively straight outline, while... The lower slot adopts a trapezoidal outline design, with a cross-section that is narrower at the top and wider at the bottom or tilted to one side. This trapezoidal structure allows the device to enter the base only in a specific direction during insertion, thus achieving a foolproof function. That is, when the user tries to insert the control panel in the wrong direction, interference will occur because the shape of the slot cannot match the insertion structure of the base, preventing complete insertion and avoiding problems such as contact misalignment or abnormal electrical connection. This error-proof mechanism, achieved through structural geometric differences, can complete the direction verification without additional sensors or electronic identification, and has the advantages of low cost and high reliability.

[0047] Inside the control panel, there is an independent battery unit located in the middle of the housing. The battery unit is connected to the display screen, processing unit, and communication unit through a power management circuit. It provides continuous power support after the control panel is detached from the base, enabling the control panel to be used handheld. Users can still operate the interface, browse information, and control functions after detaching from the base, significantly improving the flexibility of use.

[0048] In the electrical connection section, multiple metal contacts are arranged along the length of the lower slot area. As shown in the attached diagram, the contacts are linearly arranged and embedded in the bottom or side wall of the slot. These contacts are connected to the battery management circuit and the signal processing circuit via internal wires. Two sets of contacts are used for power supply connection: one set serves as the positive power port, and the other set serves as the ground port. When the control panel is inserted into the base, the corresponding contacts inside the base and the contacts on the control panel form a press-fit connection, thereby establishing a power input path to enable battery charging and power supply to the control panel. The other two sets of contacts are used for signal transmission, corresponding to the positive and negative signals in the USB interface, labeled D+ and D- in the attached diagram. These two sets of contacts can be used not only for data communication but also for position identification. In terms of structural design, these contacts are all made of elastic metal material, which ensures stable contact pressure during insertion through elastic deformation, thereby improving conductivity reliability and reducing contact resistance fluctuations.

[0049] Regarding the contact arrangement, from one side to the other, the sequence is: positive power port, positive signal port, negative signal port, and ground port. This arrangement facilitates establishing a ground connection before establishing a power connection during insertion, thereby improving electrical safety. At the same time, the signal contact is located in the middle, which can reduce external interference.

[0050] When the control panel is inserted into the base, the lower slot first contacts the base guide structure and guides it in. Then, the contacts gradually contact the corresponding contacts inside the base and form a conductive path. The upper slot cooperates with the upper structure of the base at the insertion end to form a positioning constraint, so that the control panel is restricted in three dimensions, thereby ensuring the stability and reliability after insertion.

[0051] In terms of functionality, the aforementioned contact structure not only enables power supply and data transmission, but also provides basic support for subsequent left and right recognition logic. Specifically, the position of the control panel is determined by detecting the electrical state difference between the positive and negative signal ports. Different connection relationships can be preset inside the base in different base positions. For example, the positive and negative signal ports can be connected inside one base, while the other side remains open. Thus, the left and right positions can be identified by detecting the connection status after the control panel is inserted.

[0052] In terms of overall structural relationship, the control panel shell, card slot structure, battery unit and contact assembly form an integrated design. The card slot serves both as a mechanical connection function and as an electrical interface carrier function. The contact assembly is embedded in the card slot and connected to the battery and control unit through internal circuitry, achieving a high degree of integration between structure and electrical systems. This design not only reduces the number of additional interfaces, but also improves the overall compactness of the system.

[0053] As can be seen from the positional relationship in the attached diagram, the contacts are concentrated in the middle area of ​​the lower slot to ensure that an electrical connection is established first after insertion, while the upper slot mainly serves as a guide and limiter. The two have a clear division of labor and work together. In addition, during long-term use, the trapezoidal slot structure can automatically align the position during insertion and removal, reducing the impact of human deviation on contact. At the same time, due to the different sizes of the upper and lower slots, users can intuitively judge the correct direction by feel or sight during operation, further improving the human-computer interaction experience.

[0054] In summary, this implementation method integrates multiple functions such as mechanical error prevention, electrical connection, power supply management, and position recognition by introducing a differentiated card slot structure and multi-functional contact design on the basis of a mobile phone-like form. It not only meets the usage requirements of a movable and handheld control screen, but also provides a stable and reliable hardware foundation for subsequent control logic. While ensuring structural simplicity, it also achieves functional expansion, providing a highly integrated and easy-to-engineer solution for in-vehicle rear-seat interactive systems.

[0055] The foregoing has only described certain exemplary embodiments of this application by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of this application. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of this application.

Claims

1. A method for determining whether a control panel for a rear seat of a vehicle is for a left or right side, characterized by: Includes the following steps: Obtain the connection status information between the vehicle's movable rear control screen and the rear door interior panel control screen base. The connection status information includes the conduction status between the power positive port and the ground port, as well as the conduction status between the signal positive port and the signal negative port. Based on the conduction state between the power supply positive port and the ground port, determine whether the vehicle movable rear control screen is in the state inside the control screen base or outside the control screen base, and record the corresponding duration parameter in the state inside the control screen base or outside the control screen base. Based on the conduction state between the positive and negative signal ports, the movable rear control screen of the vehicle is determined to be either the left or right control screen when it is inside the control screen base, and the determination result of left or right control screen is maintained when it is outside the control screen base. Based on the state inside or outside the control panel base, the duration parameters, and the judgment results of the left or right control panel, the corresponding display strategy and electrical control strategy are executed. The left control panel executes the left function control strategy, and the right control panel executes the right function control strategy.

2. The method of claim 1, wherein the method is characterized by: The continuity between the power positive port and the ground port is established through the crimping contact between the contacts at the bottom of the control panel and the elastic contacts inside the base. The contacts are made of elastic conductive material and are arranged sequentially along the insertion direction of the control panel as the power positive port, signal positive port, signal negative port and ground port. Stable contact pressure is maintained by the elastic deformation of the contacts.

3. The method of claim 2, wherein the method is characterized by: The conduction relationship between the positive and negative signal ports is configured through a preset conductive path inside the base. The left side of the vehicle has a conductive connection structure inside the base, while the right side of the vehicle has a disconnected structure inside the base. Electrical coding is formed through different connection relationships.

4. The method of claim 1, wherein the method is characterized by: During the period when the control panel is detached from the base, the internal storage unit records the most recent position determination result and continuously outputs the corresponding side function control logic throughout the detachment period until the position determination result is updated when the conduction relationship between the power positive port and the ground port is re-established.

5. The method of claim 1, wherein the method is characterized by: The duration parameter is recorded by the internal timing unit, and independent timing is performed for the power-on state inside the base, the power-off state inside the base, and the state detached from the base. When different timing results reach the preset threshold, the screen saver display, standby operation, or power-off operation mode is triggered.

6. The method of claim 1, wherein the method is characterized by: The control screen has a mobile phone-like structure, with card slots of different sizes and outlines on the top and bottom edges. The lower card slot has a trapezoidal outline design, which restricts the insertion direction through geometric differences.

7. The method of claim 1, wherein the method is characterized by: The base has an upper tongue and an ejector structure inside. The upper tongue is driven by a pressing mechanism to move vertically to release the control panel from its locked state. The ejector structure has an elastic element inside for energy storage and release.

8. The method of claim 5, wherein the method is characterized by: The control panel display strategy includes an information display mode and a function control mode. The information display mode is used to present vehicle operation information and user settings information, while the function control mode is used to execute the control logic of the corresponding electrical equipment. The different modes are switched by the duration parameter and the change of conduction state.

9. The method of claim 2, wherein the method is characterized by: The bottom of the control panel is equipped with multiple sets of conductive contacts linearly distributed along the insertion direction. The contacts correspond to the positive power port, positive signal port, negative signal port, and ground port, respectively. The corresponding positions inside the base are provided with elastic conductive contact structures. The conductive contact structures generate continuous contact pressure through deformation. Different conduction paths are configured on the left and right sides of the base. One side forms a closed loop between the positive signal port and the negative signal port through internal conductive connection, while the other side maintains an open circuit structure. The conduction status is kept and recorded in conjunction with the internal storage unit of the control panel.

10. The method of claim 6, wherein the method is characterized by: The control panel body has an upper slot structure and a lower slot structure at both ends along the longitudinal direction. The upper slot has a straight opening outline for guidance and positioning, while the lower slot has a trapezoidal outline and forms a one-way matching relationship with the corresponding insertion structure of the base. The lower slot has linearly distributed conductive contacts embedded in it along the length direction. The conductive contacts are connected to the positive power port, the positive signal port, the negative signal port, and the ground port, respectively. The insertion direction is limited by the geometric constraints of the slot.

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