Chinese Academy of Sciences

Hewlett Packard Enterprise Development LP

Tsinghua University

Zynga Inc.

Beijing Didi Infinity Technology and Development Co., Ltd.

Beijing Oriental Railway Technology Development Co., Ltd

International Business Machines Corporation

Nuctech Company Limited

China Construction Bank Corporation

Beijing Ten Dimensions Technology Co., Ltd.

Chao Guo

Lei Zhang

Bin Zhou

Zhiqiang Wang

Lin Lin

Lingyu Zhang

Lin Hou

Zhen Shen

Xiaobing Liu

Feiyue Wang

Gang Xiong

Feng Lin

Zexiang Huang

Shengwei Li

Xiangsheng Pang

Chong Shen

Jinming Cao

Xingguang Yu

Huiqiang Liu

Kerry Yang

Xiuqin Shang

Meng Li

Jun Yan

Zhe Wang

Yuan He

Xiao Wang

Jianpo Han

Wei Xu

Quanwei Song

Ting Ting Zhang

Yuqing Li

Yi Xie

Li Wan

Ying Jiang

Qiangqiang Wang

Junping Shi

Xuefu Wang

Hang Gao

Hongqi Li

Xiong Zhang

Wentao Yan

Jiawei Liao

Hongxin Li

Zhengpeng Wu

Yucheng Dong

Huaping Li

Wenjun Ge

Yinqian Cheng

Dongxiao Li

Xiaoyao Yang

Wenpeng Gao

Can Luo

Jianming Fu

Jiajun Huang

Meihua Zhao

Xisong Dong

One aspect provides a system and method for provisioning an access point (AP) in a wireless mesh network. During operation, a controller can obtain a set of published global encryption parameters comprising a master public key, apply an identity-based encryption (IBE) scheme to encrypt a configuration message based at least on the master public key, and transmit the encrypted configuration message to a proxy device, which forwards the encrypted configuration message to the AP. The proxy device is coupled to the controller via a previously established secure communication channel and coupled to the AP via an open communication channel. The AP can decrypt the encrypted configuration message using an AP-specific secret key generated based on a unique identifier of the AP and a master private key corresponding to the master public key, thereby facilitating provisioning of the AP based on the configuration message.

Secure zero-exchange provision system for wireless mesh access points

Examples described herein provide multi-band channel scanning. Examples may include transmitting, by a first radio of a first network device operating at a first frequency band below the millimeter-wave (mmWave), a beacon frame indicating a particular scanning channel of a second frequency band within the mmWave, receiving, by a second radio of the first network device operating the second frequency band, a probe request from a second network device via the particular scanning channel, wherein the probe request is in response to the beacon frame received by the second network device, and in response to the probe request, transmitting, by the second radio of the first network device, a probe response in each of one or more sector transmitting directions via the particular scanning channel.

Multi-band channel scanning

This application relates to an overload and unbalanced load detecting system for a railway and a detecting method. This system includes at least one steel rail. A rail web of each steel rail is provided with two sampling points at two sides between every two adjacent rail sleepers, respectively, and the two sampling points on one side are symmetrically disposed about the steel rail with respect to the two sampling points on the other side. A fiber-optic sensitive element used for continuously measuring a load when a train passes through the two sampling points is obliquely fixed at each sampling point, and two fiber-optic sensitive elements on the same side of each steel rail are disposed at an angle of 90° with each other.

Overload and unbalanced load detecting system for railway and detecting method

An apparatus and method for providing social network content in an online game is disclosed herein. Content is obtained from a social network site and is displayed within the game. The game also provides a mechanism for the user of the game to generate content to the posted within the social network from within the game. Such generated content is automatically posted in the social network for a recipient specified by the user.

Providing social network content in games

An additive manufacturing apparatus utilizing combined electron beam selective melting and electron beam cutting. One electron beam emitting, focusing, and scanning device (6) is capable of emitting electron beams (67, 68) in three modes of heating, selective melting, and electron beam cutting. The electron beam in the heating mode is emitted to scan and preheat a powder bed (7). The electron beam (67) in the selective melting mode is emitted to scan and melt powder (71) in a section outline to form a section layer of a component. The electron beam (68) in the electron beam cutting mode is emitted to perform one or more cutting scans on inner and outer outlines (74, 75) of a section of the component to obtain accurate and smooth inner and outer outlines of the section. The heating, melting deposition, and outline cutting processes are repeated to obtain a required three-dimensional physical component.

Additive manufacturing apparatus utilizing combined electron beam selective melting and electron beam cutting

An online monitoring device of 3D printing equipment includes a signal collection module, a signal processing module, a feature extraction module, a monitoring module and a knowledge base module. A vibration signal of a preset component of the 3D printing equipment is collected by a vibration sensor. The collected vibration signal of each preset component is converted from an analog signal to a digital signal and the spectrum characteristics are extracted. Based on the spectrum characteristics of each preset component, the operation state type of the preset component is obtained by a comparative analysis model. The knowledge base module is configured to store newly added samples and initial samples of the 3D printing equipment. The initial samples include spectrum characteristic information and corresponding fault category of known faults, and the newly added samples include spectrum characteristic information and corresponding fault category of new faults.

Online monitoring device and system for a 3D printing device

An additive manufacturing device utilizing an electron beam and laser integrated scanning comprises: a vacuum generating chamber (); a worktable means having a forming region at least provided in the vacuum generating chamber (); a powder supply means configured to supply a powder to the forming region; an electron-beam emission focusing and scanning means () and an laser-beam emission focusing and scanning means () configured in such a manner that a scanning range of the electron-beam emission focusing and scanning means () and a scanning range of the laser-beam emission focusing and scanning means () cover at least a part of the forming region; and a controller configured to control the electron-beam emission focusing and scanning means () and the laser-beam emission focusing and scanning means () to perform a powder integrated-scanning and forming treatment on the forming region.

Additive manufacturing device utilizing EB-laser composite scan

The present disclosure relates to a method and system for determining a final location associated with a service requester. The method includes obtaining, by at least one computer server of an online transportation service platform, an initial location associated with a service requester; comparing, by the at least one computer server, the initial location with a plurality of candidate locations in a database to generate at least one match result; and determining, by the at least one computer server, a final location based on the at least one match result, wherein the final location is associated with the initial location.

System and method for determining location

A neural network-based error compensation method for 3D printing includes: compensating an input model by a deformation network/inverse deformation network constructed and trained according to a 3D printing deformation function/inverse deformation function, and performing the 3D printing based on the compensated model. Training samples of the deformation network/inverse deformation network include to-be-printed model samples and printed model samples. The deformation network constructed according to the 3D printing deformation function is marked as a first network. During training of the first network, the to-be-printed model samples are used as real input models, and the printed model samples are used as real output models. The inverse deformation network constructed according to the 3D printing inverse deformation function is marked as a second network. During training of the second network, the printed model samples are used as real input models, and the to-be-printed model samples are used as real output models.

Neural network-based error compensation method, system and device for 3D printing

An optical fiber detection device with a steel rail as an elastomer and a railway overload and unbalanced load detection system. The optical fiber detection device includes a shear force detection device, the shear force detection device includes an optical fiber sensitive element which is fixed on a neutral axis of the steel rail through low-energy spot welding.

Optical fiber detection device with steel rail as elastomer and railway overload and unbalanced load detection system

The present disclosure relates to vehicle traction apparatus and radiation imaging check systems. One illustrative implementation may comprise two parallel tracks, two sets of traction mechanisms and a driving unit, wherein the tracks are disposed on a ground. The two sets of traction mechanisms may be respectively disposed on the two tracks. Further, the driving unit may be adapted for driving the two sets of traction mechanisms to synchronously move along the two tracks. In some embodiments, each of the two sets of traction mechanisms includes a body, a cantilever, a lifting driving mechanism and a wheel supporting assembly, and may include features such as the body being mounted on the track, the cantilever being disposed parallel to a direction of the tracks, and/or both ends of the cantilever being respectively connected with the lifting driving mechanism and the wheel supporting assembly.

Vehicle traction system and radiation imaging check system

The present disclosure discloses system parameter processing method, device and system. The method includes receiving a parameter processing instruction input by a user; responding to parameter processing sub-instruction to acquire a responding result; storing the responding result corresponding to parameter processing sub-instruction in a preset format; comparing the actual value of the parameter corresponding to the parameter identifier to be processed with the test value thereof respectively; and outputting a comparison result.

System parameter processing method, device and system

This Invention provides a system which enables recording/replaying Web-based user steps including a client and a server, wherein the server includes: Web Application means for displaying Web interface for the client, where user's actions on web interface form said Web-based user steps; A recorder/player which is set in front of the Web application means for recording said Web-based user steps and enables replaying the recorded user steps; the storage means for storing the Web-based user steps recorded in recorder/player. This invention also provides a related Server, recorder/player and method. With this invention, the user steps can be easily recorded and replayed in the browser without any help from other installation programs and thus can be shared by other users.

Record/replay of user-input instructions to a web application

Growing community of inventors

Beijing, China

Chao Guo