Abstract: The present disclosure provides a target object tracking method. In this disclosure, the point cloud data sequence in the target scene is collected by lidars and the first frame of cloud point data is extracted; the bounding box of the target object in the first frame of cloud point data is determined using the preset three-dimensional target tracking algorithm. All the target point clouds in the bounding box are extracted to generate the first template point cloud. The template expansion processing is performed using the preset ATG algorithm to obtain the second template point cloud. The point cloud features in the search area of other frames of point cloud data are extracted, and are compared with the second template point cloud and the reference template point cloud to obtain the comparison result. Based on the comparison result, the tracking result of the target object is generated and displayed.

Abstract: An antenna assembly and a vehicle are provided. The antenna assembly includes a first carrier plate, a first circuit board, a second carrier plate, and a second circuit board. The first circuit board is disposed between the first carrier plate and the second carrier plate, and the second carrier plate is disposed between the first circuit board and second circuit board. The first circuit board includes at least one antenna element, the second circuit board includes at least one coupler, the second circuit board is configured to receive an excitation signal, the excitation signal is coupled to the at least one antenna element by the at least one coupler, and the at least one antenna element is configured to generate an antenna signal according to the excitation signal and radiate the antenna signal.

Abstract: Disclosed are a control signal pulse width extraction-based phase-locked acceleration circuit and a phase-locked loop system, the phase-lock acceleration circuit includes a pulse width extraction control circuit and a current injection switch module; the control output terminal of the pulse width extraction control circuit is connected to the current injection control terminal of the current injection switch module, and the stepping current control terminal of the current injection switch module and the driving input terminal of the pulse width extraction control circuit are both connected to the preset control signal output end of a phase frequency detector for use in controlling, according to pulse width changes of signals outputted by the preset control signal output end, the current injection switch module to inject charges until the phases of a reference clock signal and feedback clock signal inputted by the phase frequency detector are synchronized.

Abstract: Disclosed are a control signal pulse width extraction-based phase-locked acceleration circuit and a phase-locked loop system, the phase-lock acceleration circuit includes a pulse width extraction control circuit and a current injection switch module; the control output terminal of the pulse width extraction control circuit is connected to the current injection control terminal of the current injection switch module, and the stepping current control terminal of the current injection switch module and the driving input terminal of the pulse width extraction control circuit are both connected to the preset control signal output end of a phase frequency detector for use in controlling, according to pulse width changes of signals outputted by the preset control signal output end, the current injection switch module to inject charges until the phases of a reference clock signal and feedback clock signal inputted by the phase frequency detector are synchronized.

Abstract: This application discloses a rotating mechanism for a display terminal and a vehicle having the same. The rotating mechanism includes: a mounting unit, a clutch unit, and a drive unit, the mounting unit being configured to mount a display terminal, the clutch unit including a first engaging portion and a second engaging portion, the first engaging portion being connected to the mounting unit, and the drive unit having a power output member capable of outputting torque, the power output member being detachably connected to the second engaging portion and capable of transmitting torque, and the first engaging portion and the second engaging portion being in power coupling connection.

Abstract: A recharging control method of a desktop robot is provided. The desktop robot includes a robot body provided with a camera and a base. The recharging control method includes the following steps.

Abstract: This application discloses a rotating mechanism for a display terminal and a vehicle having the same. The rotating mechanism includes: a mounting unit, a clutch unit, and a drive unit, the mounting unit being configured to mount a display terminal, the clutch unit including a first engaging portion and a second engaging portion, the first engaging portion being connected to the mounting unit, and the drive unit having a power output member capable of outputting torque, the power output member being detachably connected to the second engaging portion and capable of transmitting torque, and the first engaging portion and the second engaging portion being in power coupling connection.