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Study on Dynamic Monitoring System of Surrounding Rock in Underground Coal Preparation Chamber
Author: ZhengYangBing
Tutor: XuZhiQiang
School: Beijing
Course: Detection Technology and Automation
Keywords: underground coal preparation chamber surrounding rock monitor wireless sensornetworks(WSNs) MAC layer protocol routing protocol
CLC: TD94
Type: PhD thesis
Year: 2014
Downloads: 125
Quote: 0
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Abstract
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The underground coal preparation technology can realize green mining and solve the pollutionproblems effectively caused by inoue coal preparations, which has become a research hotpot atpresent. Meanwhile the dynamic monitoring methods of surrounding rock in underground coalpreparation chamber need a further more research. This paper proposes a new sensor way tomonitor the absolute displacement of surrounding rocks based on bolt, and a new method tomonitor the floor deformation based on MEMS sensors according to the characteristics ofunderground coal preparation chamber in Shandong xinwen coal mine, which are testedsuccessfully in field. After this, the possible effects to wireless electromagnetic wave transmissioncaused by chamber indoor environment factors are studied through field testing, numericalcalculation and modeling simulation, which makes sure the.best setting position of sensor nodesthat meets the requirements of surrounding rock convergence measurement. At the same time, thealgorithm application deficiencies of RI-MAC protocol and LEACH routing protocol inunderground coal preparation chamber are improved, and the simulation results show that theimproved protocol are more suitable for underground coal preparation wireless environment. Atlast, this research builds a new underground coal preparation wireless sensor network topology,and designs a dynamic monitoring system for underground coal preparation, the feasibility ofwhich are verified by indoor test.
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CLC: > Industrial Technology > Mining Engineering > Beneficiation > Coal
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