Overview of time synchronization technology for underground coal mine IoTs perception layer
Time synchronization is the basis and prerequisite for precise information perception in intelligent mines. Many characteristics of underground space in coal mines, such as narrow and long terrain and uneven surface of the roadway, can cause large cumulative effect of synchronization error and poor...
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| Autor*in: |
YUAN Liang1 [verfasserIn] CHEN Zhenping2 [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Chinesisch |
| Erschienen: |
2021 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
In: Gong-kuang zidonghua - Editorial Department of Industry and Mine Automation, 2021, 47(2021), 11, Seite 7 |
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| Übergeordnetes Werk: |
volume:47 ; year:2021 ; number:11 ; pages:7 |
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10.13272/j.issn.1671-251x.17845 |
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DOAJ019145225 |
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| 520 | |a Time synchronization is the basis and prerequisite for precise information perception in intelligent mines. Many characteristics of underground space in coal mines, such as narrow and long terrain and uneven surface of the roadway, can cause large cumulative effect of synchronization error and poor reliability of signal transmission, which brings great challenges to the research of time synchronization technology among wireless nodes. Two basic time synchronization methods, hierarchical time synchronization and distributed time synchronization method, are introduced in this paper. The special requirements of time synchronization methods for underground coal mine IoTs are analyzed. In addition to the convergence and synchronization precision, the energy efficiency, the topology robustness and the scalability of the synchronization algorithm need to be considered as well. The method should have less communication volume, longer synchronization period and certain topology robustness. Moreover, the method should be able to reduce the cumulative effect of synchronization error caused by large network diameter, and adapt to impact of network scale changes. The current research status of time synchronization of underground coal mine IoTs perception layer is analyzed, and it is concluded that the current research results mainly focus on network structure, synchronization precision and synchronization energy consumption. The research direction of time synchronization technology for underground coal mine IOTs perception layer is prospected, and it is pointed out that the focuses of future research is to design a time synchronization method with certain robustness to topology and time delay in the context of the particularity of underground communication environment and space environment in coal mine: ① It is suggested to improve the robustness of time synchronization method to topology from the perspective of topology dynamic maintenance. ② It is advised to improve the convergence speed of consistent time synchronization method from the perspective of communication topology virtual construction. ③ It is proposed to improve the robustness of time synchronization method to transmission delay from the perspective of timestamp processing and matrix completion. | ||
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10.13272/j.issn.1671-251x.17845 doi (DE-627)DOAJ019145225 (DE-599)DOAJddc77a80cd074f5484febb9bfd6e2639 DE-627 ger DE-627 rakwb chi TN1-997 YUAN Liang1 verfasserin aut Overview of time synchronization technology for underground coal mine IoTs perception layer 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Time synchronization is the basis and prerequisite for precise information perception in intelligent mines. Many characteristics of underground space in coal mines, such as narrow and long terrain and uneven surface of the roadway, can cause large cumulative effect of synchronization error and poor reliability of signal transmission, which brings great challenges to the research of time synchronization technology among wireless nodes. Two basic time synchronization methods, hierarchical time synchronization and distributed time synchronization method, are introduced in this paper. The special requirements of time synchronization methods for underground coal mine IoTs are analyzed. In addition to the convergence and synchronization precision, the energy efficiency, the topology robustness and the scalability of the synchronization algorithm need to be considered as well. The method should have less communication volume, longer synchronization period and certain topology robustness. Moreover, the method should be able to reduce the cumulative effect of synchronization error caused by large network diameter, and adapt to impact of network scale changes. The current research status of time synchronization of underground coal mine IoTs perception layer is analyzed, and it is concluded that the current research results mainly focus on network structure, synchronization precision and synchronization energy consumption. The research direction of time synchronization technology for underground coal mine IOTs perception layer is prospected, and it is pointed out that the focuses of future research is to design a time synchronization method with certain robustness to topology and time delay in the context of the particularity of underground communication environment and space environment in coal mine: ① It is suggested to improve the robustness of time synchronization method to topology from the perspective of topology dynamic maintenance. ② It is advised to improve the convergence speed of consistent time synchronization method from the perspective of communication topology virtual construction. ③ It is proposed to improve the robustness of time synchronization method to transmission delay from the perspective of timestamp processing and matrix completion. intelligent mine; coal mine iots; precise perception; perception layer time synchronization; hierarchical time synchronization; distributed time synchronization Mining engineering. Metallurgy CHEN Zhenping2 verfasserin aut In Gong-kuang zidonghua Editorial Department of Industry and Mine Automation, 2021 47(2021), 11, Seite 7 (DE-627)1680984667 1671251X nnns volume:47 year:2021 number:11 pages:7 https://doi.org/10.13272/j.issn.1671-251x.17845 kostenfrei https://doaj.org/article/ddc77a80cd074f5484febb9bfd6e2639 kostenfrei http://www.gkzdh.cn/jn-abD.aspx?ArticleID=15299 kostenfrei https://doaj.org/toc/1671-251X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_2055 GBV_ILN_2817 AR 47 2021 11 7 |
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Overview of time synchronization technology for underground coal mine IoTs perception layer |
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Overview of time synchronization technology for underground coal mine IoTs perception layer |
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YUAN Liang1 |
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Overview of time synchronization technology for underground coal mine IoTs perception layer |
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Time synchronization is the basis and prerequisite for precise information perception in intelligent mines. Many characteristics of underground space in coal mines, such as narrow and long terrain and uneven surface of the roadway, can cause large cumulative effect of synchronization error and poor reliability of signal transmission, which brings great challenges to the research of time synchronization technology among wireless nodes. Two basic time synchronization methods, hierarchical time synchronization and distributed time synchronization method, are introduced in this paper. The special requirements of time synchronization methods for underground coal mine IoTs are analyzed. In addition to the convergence and synchronization precision, the energy efficiency, the topology robustness and the scalability of the synchronization algorithm need to be considered as well. The method should have less communication volume, longer synchronization period and certain topology robustness. Moreover, the method should be able to reduce the cumulative effect of synchronization error caused by large network diameter, and adapt to impact of network scale changes. The current research status of time synchronization of underground coal mine IoTs perception layer is analyzed, and it is concluded that the current research results mainly focus on network structure, synchronization precision and synchronization energy consumption. The research direction of time synchronization technology for underground coal mine IOTs perception layer is prospected, and it is pointed out that the focuses of future research is to design a time synchronization method with certain robustness to topology and time delay in the context of the particularity of underground communication environment and space environment in coal mine: ① It is suggested to improve the robustness of time synchronization method to topology from the perspective of topology dynamic maintenance. ② It is advised to improve the convergence speed of consistent time synchronization method from the perspective of communication topology virtual construction. ③ It is proposed to improve the robustness of time synchronization method to transmission delay from the perspective of timestamp processing and matrix completion. |
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Time synchronization is the basis and prerequisite for precise information perception in intelligent mines. Many characteristics of underground space in coal mines, such as narrow and long terrain and uneven surface of the roadway, can cause large cumulative effect of synchronization error and poor reliability of signal transmission, which brings great challenges to the research of time synchronization technology among wireless nodes. Two basic time synchronization methods, hierarchical time synchronization and distributed time synchronization method, are introduced in this paper. The special requirements of time synchronization methods for underground coal mine IoTs are analyzed. In addition to the convergence and synchronization precision, the energy efficiency, the topology robustness and the scalability of the synchronization algorithm need to be considered as well. The method should have less communication volume, longer synchronization period and certain topology robustness. Moreover, the method should be able to reduce the cumulative effect of synchronization error caused by large network diameter, and adapt to impact of network scale changes. The current research status of time synchronization of underground coal mine IoTs perception layer is analyzed, and it is concluded that the current research results mainly focus on network structure, synchronization precision and synchronization energy consumption. The research direction of time synchronization technology for underground coal mine IOTs perception layer is prospected, and it is pointed out that the focuses of future research is to design a time synchronization method with certain robustness to topology and time delay in the context of the particularity of underground communication environment and space environment in coal mine: ① It is suggested to improve the robustness of time synchronization method to topology from the perspective of topology dynamic maintenance. ② It is advised to improve the convergence speed of consistent time synchronization method from the perspective of communication topology virtual construction. ③ It is proposed to improve the robustness of time synchronization method to transmission delay from the perspective of timestamp processing and matrix completion. |
| abstract_unstemmed |
Time synchronization is the basis and prerequisite for precise information perception in intelligent mines. Many characteristics of underground space in coal mines, such as narrow and long terrain and uneven surface of the roadway, can cause large cumulative effect of synchronization error and poor reliability of signal transmission, which brings great challenges to the research of time synchronization technology among wireless nodes. Two basic time synchronization methods, hierarchical time synchronization and distributed time synchronization method, are introduced in this paper. The special requirements of time synchronization methods for underground coal mine IoTs are analyzed. In addition to the convergence and synchronization precision, the energy efficiency, the topology robustness and the scalability of the synchronization algorithm need to be considered as well. The method should have less communication volume, longer synchronization period and certain topology robustness. Moreover, the method should be able to reduce the cumulative effect of synchronization error caused by large network diameter, and adapt to impact of network scale changes. The current research status of time synchronization of underground coal mine IoTs perception layer is analyzed, and it is concluded that the current research results mainly focus on network structure, synchronization precision and synchronization energy consumption. The research direction of time synchronization technology for underground coal mine IOTs perception layer is prospected, and it is pointed out that the focuses of future research is to design a time synchronization method with certain robustness to topology and time delay in the context of the particularity of underground communication environment and space environment in coal mine: ① It is suggested to improve the robustness of time synchronization method to topology from the perspective of topology dynamic maintenance. ② It is advised to improve the convergence speed of consistent time synchronization method from the perspective of communication topology virtual construction. ③ It is proposed to improve the robustness of time synchronization method to transmission delay from the perspective of timestamp processing and matrix completion. |
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Overview of time synchronization technology for underground coal mine IoTs perception layer |
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https://doi.org/10.13272/j.issn.1671-251x.17845 https://doaj.org/article/ddc77a80cd074f5484febb9bfd6e2639 http://www.gkzdh.cn/jn-abD.aspx?ArticleID=15299 https://doaj.org/toc/1671-251X |
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