Article(id=1149742082992026217, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1149742076708962589, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1672-6073.2024.05.018, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1710518400000, receivedDateStr=2024-03-16, revisedDate=1717603200000, revisedDateStr=2024-06-06, acceptedDate=null, acceptedDateStr=null, onlineDate=1752049473759, onlineDateStr=2025-07-09, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752049473759, onlineIssueDateStr=2025-07-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752049473759, creator=13701087609, updateTime=1752049473759, updator=13701087609, issue=Issue{id=1149742076708962589, tenantId=1146029695717560320, journalId=1146123302524792850, year='2024', volume='37', issue='5', pageStart='1', pageEnd='143', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1752049472262, creator=13701087609, updateTime=1753780124752, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1157000959420354689, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1149742076708962589, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1157000959420354690, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1149742076708962589, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=124, endPage=129, ext={EN=ArticleExt(id=1149742083189158510, articleId=1149742082992026217, tenantId=1146029695717560320, journalId=1146123302524792850, language=EN, title=DBN-based Reliability Evaluation of LTE-M Train-ground Radio Communication System, columnId=1152669334582243706, journalTitle=Urban Rapid Rail Transit, columnName=Electrical and Mechanical Engineering, runingTitle=null, highlight=null, articleAbstract=
To address the problems of dynamic failure and different services in the reliability analysis of an LTEM (Long Term Evolution for Machines) trainground radio communication system, this study evaluated the reliability of an LTEM trainground radio communication system based on a dynamic Bayesian network (DBN). First, the reliability block diagram, which was constructed by analyzing the LTEM system structure and function, was transformed into a DBN, and the DBN structure and parameter modeling were conducted. Subsequently, the reliability of the LTEM system was obtained and compared based on the forward inference of the DBN. Finally, based on the backward inference of the DBN, the weaknesses of the LTEM system were recognized as a reference for operation and maintenance. The results indicate that while the LTEM system is highly reliable, the building baseband unit and train access unit are vulnerabilities that require attention.
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针对 LTEM 车地无线通信系统可靠性分析中存在动态失效及承载不同业务等问题,基于动态贝叶斯网络对 LTEM 车地无线通信系统进行可靠性评估。首先,在分析 LTEM 系统结构和功能的基础上构建可靠性框图,并将可靠性框图转化为动态贝叶斯网络,实现网络的结构学习和参数学习。然后,通过动态贝叶斯网络正向推理得到 LTEM 系统承载不同业务的可靠度并进行比较分析。最后,通过动态贝叶斯网络反向推理得到 LTEM 系统的薄弱环节。研究结果表明:LTEM车地无线通信系统运行100周后,承载CBTC业务的可靠度为0.90317,承载乘客信息系统等业务的可靠度为0.71991;基带处理单元、列车接入单元为系统薄弱环节,需要重点关注。
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, authorsList=杨安玉)}, authors=[Author(id=1154000585620705877, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=yanganyu2008@126.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1154000585746534997, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, authorId=1154000585620705877, language=EN, stringName=Anyu YANG, firstName=Anyu, middleName=null, lastName=YANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=China Railway Siyuan Survey and Design Group Co., Ltd. Wuhan 430063, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1154000585872364120, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, authorId=1154000585620705877, language=CN, stringName=杨安玉, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=中铁第四勘察设计院集团有限公司 武汉 430063, bio={"content":"
杨安玉,男,硕士,高级工程师,从事轨道交通通信信号研究,yanganyu2008@126.com
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杨安玉,男,硕士,高级工程师,从事轨道交通通信信号研究,yanganyu2008@126.com
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95(3): 267-277., articleTitle=The use of Bayesian network modelling for maintenance planning in a manufacturing industry, refAbstract=null)], funds=[Fund(id=1154000591526286040, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, awardId=2023YFC3807505, language=CN, fundingSource=国家重点研发计划项目(2023YFC3807505), fundOrder=null, country=null), Fund(id=1154000591618560729, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, awardId=2022K053, language=CN, fundingSource=铁四院重点科研项目(2022K053), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1154000585444545104, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, xref=null, ext=[AuthorCompanyExt(id=1154000585448739408, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, companyId=1154000585444545104, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=China Railway Siyuan Survey and Design Group Co., Ltd. Wuhan 430063), AuthorCompanyExt(id=1154000585452933713, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, companyId=1154000585444545104, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=中铁第四勘察设计院集团有限公司 武汉 430063)])], figs=[ArticleFig(id=1154000589726929587, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, language=EN, label=Figure 1, caption=
Networking structure of LTE-M train-ground radio communication system, figureFileSmall=MU0d1GnfSyAVlGBxAt0fEQ==, figureFileBig=TbIicumx5psWonL2qd22kQ==, tableContent=null), ArticleFig(id=1154000589798232757, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, language=CN, label=图 1, caption=
LTE-M 车地无线通信系统组网结构, figureFileSmall=MU0d1GnfSyAVlGBxAt0fEQ==, figureFileBig=TbIicumx5psWonL2qd22kQ==, tableContent=null), ArticleFig(id=1154000589865341623, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, language=EN, label=Figure 2, caption=
DBN model, figureFileSmall=zuke507WkGMI7N26bbm2lA==, figureFileBig=w7eHdwnybmj7wWsH7m6o2Q==, tableContent=null), ArticleFig(id=1154000589936644792, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, language=CN, label=图 2, caption=
DBN 模型, figureFileSmall=zuke507WkGMI7N26bbm2lA==, figureFileBig=w7eHdwnybmj7wWsH7m6o2Q==, tableContent=null), ArticleFig(id=1154000590024725178, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, language=EN, label=Figure 3, caption=
Conversion from RBD to DBN, figureFileSmall=3uK5BIARVQ2KMUcx+IOrZA==, figureFileBig=Qi9ZYu0dQTjxVvk2iMqjmw==, tableContent=null), ArticleFig(id=1154000590083445434, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, language=CN, label=图 3, caption=
RBD 转化为 DBN, figureFileSmall=3uK5BIARVQ2KMUcx+IOrZA==, figureFileBig=Qi9ZYu0dQTjxVvk2iMqjmw==, tableContent=null), ArticleFig(id=1154000590150554300, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, language=EN, label=Figure 4, caption=
RBN of LTE-M system, figureFileSmall=A7JZ13iDR7R7BKggy4iZcw==, figureFileBig=vr8DNeHAKp9JbqRNhZRGKw==, tableContent=null), ArticleFig(id=1154000590238634686, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, language=CN, label=图 4, caption=
LTE-M 系统可靠性框图, figureFileSmall=A7JZ13iDR7R7BKggy4iZcw==, figureFileBig=vr8DNeHAKp9JbqRNhZRGKw==, tableContent=null), ArticleFig(id=1154000590301549248, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, language=EN, label=Figure 5, caption=
DBN of LTE-M system, figureFileSmall=3HycYgZpfsPgLZAcUmg0bg==, figureFileBig=rWAS5C/hIEnuMWRf7VV3rg==, tableContent=null), ArticleFig(id=1154000590456738498, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, language=CN, label=图 5, caption=
LTE-M 系统 DBN, figureFileSmall=3HycYgZpfsPgLZAcUmg0bg==, figureFileBig=rWAS5C/hIEnuMWRf7VV3rg==, tableContent=null), ArticleFig(id=1154000590515458755, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, language=EN, label=Figure 6, caption=
Reliability of LTE-M system, figureFileSmall=t8uWKRU11KNpqavC6Cz1dg==, figureFileBig=qM5CQaPA4NRRGTdHda9KsA==, tableContent=null), ArticleFig(id=1154000590565790405, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, language=CN, label=图 6, caption=
LTE-M 系统可靠度, figureFileSmall=t8uWKRU11KNpqavC6Cz1dg==, figureFileBig=qM5CQaPA4NRRGTdHda9KsA==, tableContent=null), ArticleFig(id=1154000590620316359, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, language=EN, label=Figure 7, caption=
The difference between posterior probability and prior probability of each device over 100 weeks, figureFileSmall=F9+q28JHp+k6PZ8pN3EgFQ==, figureFileBig=hzRxySJ1CscTMHzhuyiHIA==, tableContent=null), ArticleFig(id=1154000590704202441, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, language=CN, label=图 7, caption=
运行 100 周后各设备后验概率与先验概率的差值, figureFileSmall=F9+q28JHp+k6PZ8pN3EgFQ==, figureFileBig=hzRxySJ1CscTMHzhuyiHIA==, tableContent=null), ArticleFig(id=1154000590821642955, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, language=EN, label=Table 1, caption=
LTE-M system requirements for each service, figureFileSmall=null, figureFileBig=null, tableContent=
| 业务类型 | 业务特点 | 可靠性要求 |
| CBTC | 通过车地通信传输列 车位置和移动授权等 信息来实现对列车控 制功能 | 对通信技术的可靠性及无线信 息的传输效率要求非常高,要 求平均故障间隔(Mean Time Between Failure, MBTF)大于 $2 \times {10}^{5}\mathrm{\;h}$ |
| CCTV | 用于车内视频监控及 视频文件的实时回传 | 对通信技术的可靠性要求较 高,要求 MBTF 大于 $1 \times {10}^{5}\mathrm{\;h}$ |
| PIS | 用于车厢内资讯发布、 乘客指引信息的视频 展播 | 对通信技术的可靠性要求较 高,要求 MBTF 大于 $1 \times {10}^{5}\mathrm{\;h}$ |
), ArticleFig(id=1154000590939083468, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, language=CN, label=表 1, caption=
LTE-M 系统各业务需求, figureFileSmall=null, figureFileBig=null, tableContent=
| 业务类型 | 业务特点 | 可靠性要求 |
| CBTC | 通过车地通信传输列 车位置和移动授权等 信息来实现对列车控 制功能 | 对通信技术的可靠性及无线信 息的传输效率要求非常高,要 求平均故障间隔(Mean Time Between Failure, MBTF)大于 $2 \times {10}^{5}\mathrm{\;h}$ |
| CCTV | 用于车内视频监控及 视频文件的实时回传 | 对通信技术的可靠性要求较 高,要求 MBTF 大于 $1 \times {10}^{5}\mathrm{\;h}$ |
| PIS | 用于车厢内资讯发布、 乘客指引信息的视频 展播 | 对通信技术的可靠性要求较 高,要求 MBTF 大于 $1 \times {10}^{5}\mathrm{\;h}$ |
), ArticleFig(id=1154000591085884110, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, language=EN, label=Table 2, caption=
Conditional probability of S node in series and parallel structures, figureFileSmall=null, figureFileBig=null, tableContent=
| 系统 结构 | A | B | 失效 概率 | 系统 结构 | A | B | 失效 概率 |
| 串联 结构 | $W$ | $W$ | 0 | 并联 结构 | $W$ | $W$ | 0 |
| $W$ | $F$ | 1 | $W$ | $F$ | 0 |
| $F$ | $W$ | 1 | $F$ | $W$ | 0 |
| $F$ | $F$ | 1 | $F$ | $F$ | 1 |
), ArticleFig(id=1154000591157187280, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, language=CN, label=表 2, caption=
串联、并联结构节点 $\mathrm{S}$ 条件概率, figureFileSmall=null, figureFileBig=null, tableContent=
| 系统 结构 | A | B | 失效 概率 | 系统 结构 | A | B | 失效 概率 |
| 串联 结构 | $W$ | $W$ | 0 | 并联 结构 | $W$ | $W$ | 0 |
| $W$ | $F$ | 1 | $W$ | $F$ | 0 |
| $F$ | $W$ | 1 | $F$ | $W$ | 0 |
| $F$ | $F$ | 1 | $F$ | $F$ | 1 |
), ArticleFig(id=1154000591257850578, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, language=EN, label=Table 3, caption=
Failure rate and 100-week prior/posterior probability of components, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 元件 | 失效率 | 先验概率 | 后验概率 |
| 1 | SBS | 6.07 | 0.096 9 | 0.177 |
| 2 | MS | 8.37 | 0.1310 | 0.312 |
| 3 | DRCS | 3.11 | 0.050 8 | 0.122 |
| 4 | EPC | 1.54 | 0.025 5 | 0.031 4 |
| 5 | LTEBS | 6.07 | 0.096 9 | 0.177 |
| 6 | BBU | 3.97 | 0.064 5 | 0.174 |
| 7 | RRU | 3.10 | 0.050 8 | 0.137 |
| 8 | TAU | 8.00 | 0.126 0 | 0.339 |
), ArticleFig(id=1154000591320765140, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149742082992026217, language=CN, label=表 3, caption=
元件失效率及 100 周后先验/后验概率, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 元件 | 失效率 | 先验概率 | 后验概率 |
| 1 | SBS | 6.07 | 0.096 9 | 0.177 |
| 2 | MS | 8.37 | 0.1310 | 0.312 |
| 3 | DRCS | 3.11 | 0.050 8 | 0.122 |
| 4 | EPC | 1.54 | 0.025 5 | 0.031 4 |
| 5 | LTEBS | 6.07 | 0.096 9 | 0.177 |
| 6 | BBU | 3.97 | 0.064 5 | 0.174 |
| 7 | RRU | 3.10 | 0.050 8 | 0.137 |
| 8 | TAU | 8.00 | 0.126 0 | 0.339 |
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