Sensing and communication optimization method and device for coal mine safety monitoring scene

Abstract

The invention provides a sensing and communication optimization method and device for a coal mine safety monitoring scene, and relates to the technical field of wireless communication. Comprising the following steps: arranging a multi-hop reconfigurable intelligent surface RIS with a switch in a tunnel of a coal mine communication sensing network to carry out communication sensing; and determining an initial objective function, and according to the initial objective function, respectively optimizing the power, the phase, the switch and the transmission rate in the communication sensing process, thereby completing the optimization of sensing and communication of the coal mine safety monitoring scene. Compared with a traditional coal mine scene, the energy efficiency of the coal mine scene with the RIS is remarkably improved. By adjusting the phase shift matrix of the RIS, the phase of the electromagnetic wave can be dynamically regulated and controlled in a channel, and beam forming at the RIS end is realized. Due to the fact that the number of the communication links is large, when faults are repaired, other links can be selected for information transmission, and therefore it is guaranteed that the communication system can work continuously.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a sensing and communication optimization method and device for a coal mine safety monitoring scene. Background technique [0002] my country's deep coal strata are complex and diverse, with serious mining disturbances and many underground hazards, including coal and gas explosions, magma, floods and other disasters. In order to coordinate the contradiction between complex mining environment and safe and efficient mining, it is very important to choose an effective mining method. The six major production systems of coal mines: coal mining, excavation, electromechanical, transportation, ventilation, and ground surveying and prevention of water, all of which require corresponding and excellent technologies. [0003] With the development of mining technology, my country is currently moving towards the diversification of mining technology, the continuous strengthening of deep w...

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Problems solved by technology

[0009] Aiming at the channel estimation and network deployment of RIS in the prior art, and how to jointly optimize the RIS phase shift matrix and transmit power to make the system energy efficient, the present invention proposes a sensing and communication optimization method for coal mine safety monitoring scenarios and device

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