Huawei Technologies Co., Limited

Beijing Xiaomi Mobile Software Co., Ltd.

China University of Petroleum

Semiconductor Manufacturing International (shanghai) Corporation

Semiconductor Manufacturing International (beijing) Corporation

Ubtech Robotics Corp Ltd

Wuyi University

Beijing Shida Rongzhi Sci. and Tech. Ltd. Co.

Beijing Shida Rongzhi Science & Technology Ltd Co.

China Railway 16th Bureau Grouia Co., Ltd.

China Railway 16th Bureau Group Road & Bridge Engineering Co., Ltd.

Wei Fang

Shengyu Gong

Xin Fang

Wenhao Tian

Hongming Liu

Jirui Zou

Xiang'an Yue

Weiqing An

Chungang Li

Xuegang Feng

Yin Zhu

Xu Wei

Dong Yang

Chaojun Deng

Fei Ma

Zhiwen Yang

Wenjun Chang

Hongbin Wu

Youjun Xiong

Jing Li

Lei Zhang

Yanjun Liu

Jiawen Hu

Chen Gong

Shun Hao

Facan Feng

Fengwei Tian

Peng Nie

Banghong Hu

Mingfei Chen

Yake Hao

Xu Hu

Xie Miao

Tao Hou

Jindong Pan

Zehui Kang

Yihong Zhang

Junbin Zhang

Tuo Pang

Hongli Zheng

Siliang Du

Chao Yu

Juanjuan Cao

Hualiang Shi

Yiguo Qi

Zengbo Shi

Lijuan Zhang

Shengxu Zhao

Bin Kong

Jueshun Zhao

Youjun Fu

Yongjun Wei

Disclosed is an intelligent anti-seismic device for a shallow foundation ancient building, which may include a land, a foundation base and an ancient building body, foundation pit is excavated on a surface of the land, a plurality of piles are arranged on an inner wall of the foundation pit, a foundation side beam is integrally formed by pouring on tops of the plurality of piles, a first earthquake proof mechanism capable of being lifted and lowered is fixed on a top of the foundation side beam, a well-shaped base is integrally formed on the inner wall of the foundation pit, a second earthquake proof mechanism is fixed on a surface of the well-shaped base, a frame is fixed on both tops of the first earthquake proof mechanism and the second earthquake proof mechanism, a grillage beam is integrally formed on an inner wall of the frame.

Intelligent anti-seismic device for shallow foundation ancient buildings, and construction method therefor

This application provides a visual feature database construction method, including: obtaining a database creation image; performing feature extraction on the database creation image to obtain a feature point of the database creation image and a descriptor of the feature point of the database creation image; intersecting a ray corresponding to the feature point of the database creation image with a 3D model, to determine the 3D position of the intersection point at which the ray intersects with the 3D model as the 3D position of the feature point of the database creation image; and writing the descriptor of the feature point of the database creation image and the database creation image into a visual feature database, to construct the visual feature database.

Visual feature database construction method, visual positioning method and apparatus, and storage medium

A circuit board assembly is applied to the field of electronic communications technologies to resolve a prior-art heat dissipation problem of a circuit board. The circuit board assembly combines, on a second circuit board, low-speed signals transmitted between a plurality of I/O modules and an IC chip, and then transmits the combined low-speed signals to the IC chip by using a low-speed cable. A low-speed signal sent by the IC chip to the plurality of I/O modules is extended to a plurality of low-speed signals on the second circuit board, and then the plurality of low-speed signals are separately sent to the plurality of I/O modules. This may be applied to a scenario in which a relatively large quantity of electronic components need to be disposed on a circuit board.

Circuit board assembly and electronic device

Mobile phone

Embodiments of this application provide an optical fiber ferrule, where n rows of optical fiber holes are symmetrically distributed on a mating end face of the ferrule, n&#x3e;=3, and n is an odd number. Based on the layout design of optical fiber holes on the optical fiber ferrule, this application provides an optical fiber connector that includes a plurality of rows of optical fiber holes and that is compatible with one row and a relatively small number of rows of optical fiber holes, so that an optical fiber connector with a large number of cores can be forward compatible with an optical fiber connector with a small number of cores, thereby improving expandability and compatibility of the optical fiber ferrule.

Optical fiber ferrule and optical fiber connector

A method, an apparatus, and a system for measuring a network delay are disclosed. The method includes: acquiring delay measurement information obtained by measuring a service flow by at least one target logical port TLP, where the delay measurement information includes: timestamp information, a service flow identifier, and a TLP identifier; and transmitting the delay measurement information to a measurement control point MCP, so that the MCP determines details about a network delay according to the timestamp information, the service flow identifier, and the TLP identifier. Embodiments of the present application further provide an apparatus and a system for measuring a network delay. Embodiments of the present application achieve direct and accurate delay measurement of a service flow in scenarios of point to point transmission or point to multipoint transmission on the network, and reflect details about a real delay of the service flow.

Method, apparatus, and system for measuring network delay

The present disclosure provides a pose determining method for a mobile robot as well as an apparatus and a mobile robot thereof. The method includes: obtaining a first position of a mobile robot in each local map after building an initial local map corresponding to a current environment and rotating; determining first environmental contour points of each of the local maps and corresponding first gradient directions, and obtaining a relative position of each of the first environmental contour points and the corresponding first position; building an angle histogram in each of the local maps; determining a second position of second environmental contour points of a global map and corresponding second gradient directions; and predicting a third position in the global map of the mobile robot, counting an appearance amount of the third positions, and determining a target pose of the mobile robot in the global map.

Pose determining method for mobile robot and apparatus and mobile robot thereof

The present application provides an apparatus and a method for measuring apparent permeability of a tight rock core, the apparatus comprises: a rock core holder, a first high-pressure injection pump, a second high-pressure injection pump, a micro-differential pressure meter, a micro-flow meter, a first pressure control unit, a second pressure control unit, a first valve, a second valve, a third valve, and a fourth valve; the first pressure control unit comprises: a first pressure-resistant piston container and a second pressure-resistant piston container, both of which are divided into an upper cavity and a lower cavity by a piston, the upper cavities of the first pressure-resistant piston container and the second pressure-resistant piston container are filled with gases and communicate with each other, and the lower cavity of the first pressure-resistant piston container is filled with pump pressure-transmission liquids, and the lower cavity of the second pressure-resistant piston container is filled with experimental fluids.

Apparatus and method for measuring apparent permeability of tight rock core

A high-temperature, high-pressure, and low-velocity gas microtube viscosity measuring apparatus that comprises a thermotank, a fluid filtering and measuring device, a micro-pressure difference metering device, and a data acquisition and processing system. The fluid filtering and measuring device includes a filter, a microtube connector, a flow rate measuring liquid storage tank, an automatic micro-flow rate metering device, and an intermediate container connected in series via pipelines. The micro-pressure difference metering device is connected at two ends to pipelines at the two ends of the microtube connector via detection pipelines. The data acquisition and processing system is electrically connected to the micro-pressure difference metering device and the automatic micro-flow rate metering device to receive pressure difference data and flow rate data.

High-temperature, high-pressure, and low-velocity gas microtube viscosity measuring apparatus and measuring method thereof

Growing community of inventors

Beijing, China

Wei Fang