Tianjin University

State Grid Corporation of China

North China Electric Power University

State Grid Tianjin Electric Power Company

Electric Power Science & Research Institute of State Grid Tianjin Electric Power Company

Catarc Co., Ltd.

Tao Li

Zhixin Wu

Xudong Wang

Yi Ding

Ning Chen

Keqiu Li

Wei Fan

Guodong Li

Yan Qi

Xuejun Shang

Xianglei Zhu

Jiancheng Chi

Tie Qiu

Zhijun Zhang

Jie Zhang

Pan Zhang

Ning Jiang

Yanxin Shi

Haodong Wang

Xiaobo Zhou

Menghan Wu

Sai Zhang

Ning Kang

Xianming Meng

Tong Song

Xingfeng Cao

Pengfei Ren

Xiaozhong Wu

Xinfu Zheng

The present invention discloses an intelligent internet of things integrated perception system and method thereof, the integrated perception system comprises a data perception layer (); a connection and transmission layer (); an edge computation layer (); a cloud computation layer (); an application layer (). The data perception layer () is composed of a plurality of sensor device nodes, and transmits the monitored environmental data to the edge computation layer () through the connection and transmission layer (); the cloud computation layer () performs data fusion according to data provided by each edge computation device, and forms action instructions for the plurality of application devices. Multi-layer IoT integrated perception is realized, and the requirement for the comprehensive and integrated processing of different types of data in the IoT is satisfied, realizes the deployment of the monitoring network topology of the data perception layer and improves the monitoring efficiency of the sensor device nodes.

Intelligent internet of things integrated perception system and method thereof

A method, a system and a device for determining interlaminar shear strength of a composite laminated plate are provided. The method includes following steps: constructing a force-displacement curve of a composite laminated plate specimen based on strain data, corresponding to different displacements of the indenter, of the composite laminated plate specimen; determining a dominant strain based on plane strain nephograms; reading any defect in the plane strain nephogram corresponding to one displacement as a current defect, and determining a test force acting on the whole composite laminated plate specimen corresponding to the reference displacement of the indenter as a critical strain value; determining a product of the critical strain value and shear modulus under the dominant strain as the shear strength between adjacent single layers to be tested.

Method, system and device for determining interlaminar shear strength of composite laminated plate

The present application relates to a method for evaluating an operation of a distribution network based on data capture and Spark. The method includes: acquiring a packet from a terminal, and mirroring the packet through a mirroring port of a switch to acquire a mirror packet of the packet; analyzing the mirror packet, acquiring a 101/104 protocol packet, and storing the 101/104 protocol packet into an HDFS; acquiring the 101/104 protocol packet from the HDFS, parsing the 101/104 protocol packet on a Spark platform to acquire a parameter in the 101/104 protocol packet, and analyzing and processing the parameter to obtain a key indicator for evaluating the operation of the distribution network; and displaying the key indicator through a web page.

Method and system for evaluating an operation of a distribution network

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Tianjin, China

Tao Li