China Mobile Communications Group Co., Ltd.

China Mobile Communication Co.,ltd Research Institute

Other

Tsinghua University

Shandong Provincial Communications Planning and Design Institute

Lenovo (beijing) Limited

Beijing Lenovo Software Ltd.

Li Su

Bo Yang

Wei Liu

Depeng Jin

Chuanyi Ma

Junzhi Yan

Tao Mu

Weiling Wu

Shen He

Zhen Tu

Pengfei Zhou

Jie Ma

Kai Zhao

Ye Tian

Yufeng Bi

Kai Wang

Haitao Du

Qiyun Wei

Wenshu Jiang

Guohua Han

Peiyang Fang

Huajun Pang

The present disclosure provides an access control method, an access control apparatus, a network side device, a terminal and a blockchain node, wherein the access control method includes: receiving relevant information to be verified that is sent by a terminal and corresponds to an access request, wherein the relevant information to be verified includes private key signature information of the terminal and position information of preset information in the blockchain; acquiring the preset information from the blockchain according to the position information; verifying the terminal according to the private key signature information and the preset information; acquiring, in a case that verification is passed, attribute information of the terminal from a blockchain ledger according to the preset information; and feedbacking a request response for access control to the terminal according to the attribute information.

Access control method, apparatus, network side device, terminal and blockchain node

A configuration method includes: the terminal device generating a second key on the basis of a first key, and performing encryption and/or integrity protection on a certificate request message on the basis of the second key; and sending a first request message, the first request message comprising the certificate request message encrypted and/or integrity-protected via the second key.

Configuration method and apparatus for terminal device, and communication device

Provided in embodiments of the present disclosure are a blockchain-based method and system for SDP access control. An SDP connection accepting host transmits information of the SDP connection accepting host and a supported connection policy to a blockchain system node, performs blockchain node verification and consensus, and records in a blockchain ledger; an SDP connection initiating host submits an identity authentication request to the blockchain system node; the blockchain system node verifies information of the identity authentication request, and searches for a list of SDP connection accepting hosts accessible to the SDP connection initiating host, and returns to the SDP connection initiating host; the SDP connection initiating host initiates a connection request, the connection request comprising a signature of the blockchain system node with respect to the SDP connection accepting hosts; the SDP connection accepting host verifies the connection request initiated by the SDP connection initiating host and provides an access service upon successful verification. The embodiments of the present disclosure prevent an SDP controller from coming under a DDoS attack and prevent the SDP controller from implementing an incorrect authorization.

Blockchain-based method and system for SDP access control

A method and device for judging intercity transportation modes based on mobile phone data solves the problems of difficult data acquisition and low data processing efficiency in the existing solutions. The method includes: obtaining the trajectory of each user from the mobile phone data; extracting an intercity traffic sub-trajectory in the trajectory of each user; and judging the transportation mode of the intercity traffic sub-trajectory. The solution has the advantages of easy data acquisition, high data processing efficiency and capability of achieving long-term monitoring.

Method and device for judging intercity transportation mode based on mobile phone data

A multiple axle-sleeve driving bidirectional rotating wheel-shaped fan turbine and a bushing wheel-shaped fan compressor, including: a working component, a driving component, a structural and installed component and a starting component. A wheel-shaped fan of the turbine drives a corresponding wheel-shaped fan of compressor to rotate through a driving axle sleeve. A rotating direction of the wheel-shaped fan of the turbine is opposite to a rotating direction of a wheel-shaped fan adjacent to the wheel-fan and rotating speed of the plurality of wheel-shaped fan is different. Each of the auxiliary wheel-shape fans is respectively bushed on each of the wheel-shaped fans of the compressor. A turbojet assembled with this disclosure has a high functionality, a light weight, a quick heat dissipation, an excellent anti-surging and a low energy consumption.

Multiple axle-sleeve driving bidirectional rotating wheel-shaped fan turbine and a bushing wheel-shaped fan compressor

The present invention provides a method for judging a highway abnormal event, which can determine the traffic jam phenomenon in the target road segment based on the trajectory data of each sample vehicle of the target road segment. The solution of the present invention has the following beneficial effects of 1. comprehensively considering the vehicle speed information of the sample vehicles to judge the traffic jam event; 2. determining the overall traffic jam event of the target road segment; 3. more accurately judging the traffic jam event of the target road segment.

Method for judging highway abnormal event

A control method and an electronic device are provided in this application. The control method includes: determining a first operating area where an operator performs a gesture operation according to sensing information obtained by the at least two sensing units, where, sensing information from various spatial areas are obtained the at least two sensing units, the first operating area includes at least one spatial area of the various spatial areas; and generating and executing a first control instruction corresponding to the first operating area based on at least a configuration relationship between an operating area and an instruction, where the first control instruction is different from a second control instruction which is generated when the operator performs a gesture operation in a second operating area.

Control method and electronic device

Absolute amplitude sensor device

Growing community of inventors

Beijing, China

Li Su