Abstract: The present disclosure relates to the technical field of campus local area networks (LANs), and particularly discloses a method and system for implementing multi-service bearer in a passive optical LAN (POL). The method includes: step S1: constructing a POL, and accessing an entire campus network at a bandwidth of Gigabit according to a point-to-multipoint star topology including three layers: a core layer, a convergence layer, and an access layer, to form a 10 Gbit backbone, wherein an optical network terminal enters a room and is deployed according to such a manner that one classroom or functional room has one terminal mode; step S2: planning and managing the entire POL, defining a plurality of LANs through software definition (SD-LAN), wherein different LANs bear different services; and step S3: allocating different service bandwidths to different LANs through a sharding mechanism of the PON, and the like.

Abstract: A personalized scene image processing method is provided for a terminal device. The method includes acquiring, according to a touch event triggered in a screen region of the terminal device, a trajectory of the touch event in the screen region; generating a virtual model, according to a projection of the trajectory of the touch event in a space coordinate system; reconstructing a model view of the virtual model mapped within a field of view of the terminal device, according to a position and posture of the terminal device in the space coordinate system; and overlaying a scene image acquired by the terminal device in the position and posture with the model view to obtain a personalized scene image.

Abstract: The application provides a gate driver circuit and a multiphase intelligent power module. When a first switch unit is closed, a power supply charges a first capacitor and a second capacitor, and a first buffer provides a gate voltage for a first power transistor. The first capacitor can improve the potential of the gate of the first power transistor, so that the first power transistor is turned on; second capacitor can provide a negative turn-off voltage for the first power transistor, and can adaptively convert external voltage into voltage that can drive the power transistor. Moreover, the circuit can be realized easily and the voltage of the first power transistor is stable.