Other

Beijing Bytedance Network Technology Co., Ltd.

Peking University

China University of Geosciences (beijing)

Shu Tao

Hao Xu

Song Li

Dazhen Tang

Jie Yang

Yujia Wang

Gao Liu

Shida Chen

Shu Hua Liu

Heng Zhang

Xin He

Xinyang Men

Yaning Wu

Shuxiu Zheng

Guofeng Shen

Xiaoqiao Jiao

The present disclosure relates to a system and method for capturing movement trajectories of particulate matter. The system includes: micro lidar measurement equipment and a camera. The micro lidar measurement equipment includes: a laser device, a pitching platform, and a protective casing for the laser device, and the laser device is located on the pitching platform. The laser device is configured to emit a laser. The camera is configured to shoot the laser, determine particulate matter concentrations according to a grayscale of pixels and a height of the pixels in a photo shoot, and compare differences in spatial distribution of particulate matter concentrations at different time to obtain the movement trajectories of the particulate matter.

System and method for capturing movement trajectories of particulate matter

The present disclosure relates to a video transmission method, an electronic device and a computer readable medium. The method is applied to a first application installed in a first terminal, where the first terminal is further installed with a second application. The method includes: acquiring a current video frame; performing special effect processing on the current video frame according to a received special effect setting instruction, and generating a target video frame; and sending the target video frame to the second application. Thus, the first application can be matched with any second application that needs to use a special effect processing function, and the second application can be enabled to obtain a special effect-processed video on the premise that the second application does not need to be redeveloped.

Video transmission method, electronic device and computer readable medium

The present disclosure relates to a video processing method and apparatus, a computer-readable medium and an electronic device. The method is applied to a first terminal, including: identifying a target object in a current video frame; receiving a special effect setting instruction input by a user; determining a plurality of special effects to be superposed according to the special effect setting instruction; and superposing the plurality of special effects to be superposed with the target object to acquire a processed video frame. In this way, synchronous superposition of a plurality of special effects can be implemented by one video processing process based on the current video frame, so that the plurality of special effects can take effect at the same time, thereby improving processing efficiency of special effects. In addition, an unnecessary intermediate video rendering process is also omitted, which is beneficial to improve terminal performance and user experience.

Video processing method and apparatus, and computer-readable medium and electronic device

The present invention discloses an adjustable gas detection device for coal bed comprising a detection direction adjustment assembly, a suction head angle adjustment assembly and an analysis bin, wherein the suction head angle adjustment assembly includes a suction head first-level angle adjustment assembly and a suction head second-level angle adjustment assembly, and the suction head first-level angle adjustment assembly includes a suction head that sucks a gas through a suction pump and sends it into the analysis bin through a suction pipe for analysis; the detection direction adjustment assembly and the suction head angle adjustment assembly jointly adjust a position and a direction of the suction head. The gas detection device for coal bed of the present invention has many degrees of freedom, can quickly complete the angle adjustment, and realizes rapidly-oriented detection, as well as having advantages of high control efficiency, rapid response, flexibility and reliability.

Adjustable gas detection device for coal bed

Disclosed is a fracturing device for extraction of coalbed methane in low permeability reservoir. In the disclosure, by controlling the fracturing of fracturing pipes and the sealing of a segmented sealing mechanism for fracturing using a fracturing controller, the fracturing in fracturing holes can be effectively controlled. The segmented sealing mechanism for fracturing in the disclosure can separate each of the fracturing pipes in the fracturing holes separately in a sealed manner respectively, and perform segmented fracturing operations using each of the fracturing pipes, so as to effectively improve the uniformity and thoroughness of fracturing and ensure fracturing ability. In the disclosure, when the sealing operations are performed in each segment, the sealing effect of each segment can be ensured, and the sealing efficiency can be ensured, so that the fracturing ability of each segment of fracturing is improved to ensure the fracturing effect.

Fracturing device for extraction of coalbed methane in low permeability reservoir

In the present disclosure, by providing a rotary torque sensor and an auxiliary drive mechanism, the drilling drive can be well controlled according to the required torque. For example, when encountering rock formations, the auxiliary drive mechanism can be used for simultaneous driving drilling, and when drilling in soft formations, only by disconnecting the transmission can the operation be completed, so as to effectively reduce energy consumption and improve utilization. In the present disclosure, when a rotary torque is greater than a set value, the controller controls the auxiliary drive mechanism to transmit to the main drive column and drive the main drive column, and when the rotary torque is smaller than or equal to the set value, the controller controls the power transmission between the auxiliary drive mechanism and the main drive column to be disconnected.

Drilling device at extracting opening for extraction of coalbed methane

Growing community of inventors

Beijing, China

Shu Tao