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.