China University of Mining and Technology

State Grid Corporation of China

Beijing Smartchip Microelectronics Technology Comp

Xianhui Wang

Wei Liu

Qiang Wu

Zheng Li

Fei Chen

Jia Zhao

Yifan Zeng

Yubo Wang

Jin Yan Shao

Chunsheng Liu

Yujie Xu

Dan Luo

Zhanxia Wu

Zhuangjie Cui

Deyong Xiao

Hongguang Dai

Weiqi Hao

Kunpeng Xu

Provided are a networking method, communication method, and communication system for a multi-mode communication device, a device, and a chip. The networking method includes: sending response information about available communication modes between a network access node and a to-be-connected node to the network access node, where the available communication modes are divided into a plurality of sets, and modes in each of the sets are incompatible with each other, and modes in different sets are compatible with each other; and locking an optimal mode, selected from each of the sets based on the response information, as handshake information between the two nodes when a preset negotiation result is met, such that the network access node reports corresponding routing information, and a root node updates networking routing information.

Networking method, communication method, and communication system for multi-mode communication device, device, and chip

A coal rock interface directional detection device based on elastic waves includes: a probe body including an elastic wave receiving device and an elastic wave excitation device spaced set at the top; a protective tube with one end connected to the adapter. The protective tube includes a collection circuit board inside the protective tube, and the collection circuit board is electrically connected to the elastic wave receiving device and the elastic wave excitation device; a sleeve, installed outside the protective tube, with one end connected to the side of the probe body near the adapter and with the other end connected to the side of the protective tube away from the adapter; and a control host, wirelessly connected with the acquisition circuit board. A coal rock interface directional detection method based on elastic waves applied in the coal rock interface directional detection device is also disclosed.

Coal rock interface directional detection device and method based on elastic waves

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Beijing, China

Xianhui Wang