Zobrazeno 1 - 10
of 121
pro vyhledávání: '"coal mine communication"'
Akademický článek
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Publikováno v:
Gong-kuang zidonghua, Vol 41, Iss 3, Pp 105-107 (2015)
For problems that existing coal mine communication systems are overlapping partly in functions and difficult to integrate each other, a new coal mine communication system was designed by use of next generation network technology. The new system integ
Externí odkaz:
https://doaj.org/article/65bb00481e3642859c4e40ac82031199
Autor:
LIU Peng
Publikováno v:
Gong-kuang zidonghua, Vol 39, Iss 1, Pp 23-26 (2013)
For problem that transmission data in TD-SCDMA communication system of coal mine easily loss or change influenced by environmental factor, the paper proposed a scheme of using message middleware technology in coal mine communication system, introduce
Externí odkaz:
https://doaj.org/article/35a3aa559249479eaed702c0b3bf2295
Autor:
SUN Jiping
Publikováno v:
Gong-kuang zidonghua, Vol 41, Iss 2, Pp 1-5 (2015)
The paper analyzed characteristics of gas, water and roof accidents of coal mine during 2009-2013, obtained numbers of accidents and deaths accounted for 78.54% and 78.80% respectively at mining working face of the most accidents. It put forward mobi
Externí odkaz:
https://doaj.org/article/a9ddf6dfcd50406f900ebeca2278b4d5
Publikováno v:
Progress in Electromagnetics Research Letters; 2024, Vol. 115, p36-46, 8p
Conference
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Autor:
Ma Long
Publikováno v:
IOP Conference Series: Earth and Environmental Science. 692:042110
The mine-used 5G hybrid networking wireless system mainly uses 4G technology to provide voice calls, and 5G technology mainly provides high-definition video analysis, big data transmission and remote wireless control services. In this paper, the mine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3e72e46ad82979b9fccf337a242cb04
https://doi.org/10.1088/1755-1315/692/4/042110
https://doi.org/10.1088/1755-1315/692/4/042110
Autor:
BAI Xuefeng, SHU Xiaojun
Publikováno v:
Gong-kuang zidonghua, Vol 49, Iss 7, Pp 14-18 (2023)
Mine communication is an indispensable part of the intelligent development of coal mines. This paper analyzes the advantages and disadvantages of different communication systems and technologies in different development stages of wireless communicati
Externí odkaz:
https://doaj.org/article/a0f3a157e6da4a61aaa02dfded28b6dc
Publikováno v:
Gong-kuang zidonghua, Vol 49, Iss 5, Pp 127-132 (2023)
Due to space limitations, multi frequency multiple-input multiple-output (MIMO) antennas have strong coupling problems caused by small unit spacing. In order to solve the above problems, a mine high isolation tri-band MIMO antenna has been designed.
Externí odkaz:
https://doaj.org/article/f275392f12a24202ad1b7dc5871c09ce
Publikováno v:
Journal of Electromagnetic Waves & Applications. Sep2023, Vol. 37 Issue 13, p1106-1121. 16p.