Abstract: An optical phased array lidar includes: a laser, for emitting a laser signal; an optical beam splitter, for splitting a laser signal into multiple sub-signals, and distributing them to corresponding optical paths; a phase controller connected to the optical beam splitter, for regulating phases of the multiple sub-signals; an optical antenna array based on a one-dimensional grating structure, connected to the phase controller and for uniformly scattering the phase-regulated sub-signals into free space; and a silicon nitride waveguide array, for transmitting the sub-signals and phase-regulated sub-signals to realize the transmission of near-infrared light and visible light. The optical phased array lidar uses a silicon nitride waveguide array for transmission, thereby realizing the transmission of near-infrared light and visible light. In this way, the lidar can work in the visible light band, thereby broadening the working ranging thereof.

Abstract: A self-reconfigurable robot module and self-reconfigurable robot is provided, which belongs to technical field of robots. Self-reconfigurable robot module comprises rolling shell, magnet and driving mechanism. Magnet locates in and magnetically connected with rolling shell. Driving mechanism locates in rolling shell, magnet connects to driving mechanism, driving mechanism abuts against inner wall of rolling shell through attraction force, used for driving magnet to move along inner wall of rolling shell and changing gravity center of self-reconfigurable robot module.

Abstract: Provided is a video sharing method performed by a server and including: acquiring video data and location points from N capturing terminals respectively, the video data used for recording videos captured by the capturing terminals, the location points used for recording locations of the capturing terminals upon acquiring the video data; sending the location points to M viewing terminals, each of N and M is a positive integer greater than 1; acquiring a target location point from a Q-th terminal, the Q-th terminal being one of the M viewing terminals, 1?Q?M, and the target location point being one of the location points; and sending J-th video data to the Q-th terminal based on the target location point, the J-th video data being video data captured by a J-th terminal at the target location point, and the J-th terminal being one of the N capturing terminals, 1?J?N.

Abstract: A cable climbing robot includes a climbing front body and a detection body. The climbing front body includes a front body rack, duct propellers, a front body clasping units and a front body control modules, the duct propellers are mounted on the outer side of the front body rack; the front body clasping unit includes a front body clasping electric motor, a front body clasping transmission component and a front body clasping member; the front body clasping electric motor is fixedly mounted on the front body rack, and the front body clasping electric motor drives the front body clasping member via the front body clasping transmission component; the front body control module is mounted on the front body rack, and the front body control module is electrically connected to the duct propellers and the clasping electric motor.

Abstract: An optical phased array lidar includes: a laser, for emitting a laser signal; an optical beam splitter, for splitting a laser signal into multiple sub-signals, and distributing them to corresponding optical paths; a phase controller connected to the optical beam splitter, for regulating phases of the multiple sub-signals; an optical antenna array based on a one-dimensional grating structure, connected to the phase controller and for uniformly scattering the phase-regulated sub-signals into free space; and a silicon nitride waveguide array, for transmitting the sub-signals and phase-regulated sub-signals to realize the transmission of near-infrared light and visible light. The optical phased array lidar uses a silicon nitride waveguide array for transmission, thereby realizing the transmission of near-infrared light and visible light. In this way, the lidar can work in the visible light band, thereby broadening the working ranging thereof.