Case knowledge reuse method of railway train control system emergency plan

doi:10.16265/j.cnki.issn1003-3033.2022.S2.0053

Abstract

Abstract:

In order to improve the operability and practicability of heavy-haul railway coal transportation accident rescue plan, this paper analyzes the knowledge structure of the response plan of the train control system of CHN Energy Shuohuang Railway Company, integrates fitness and relevance in similarity calculation, and proposes a new case retrieval method, namely new similarity calculation method. The knowledge-sharing architecture was constructed based on ″2-layer ontology″ organization mode, the threshold was set to retrieve historical cases through the knowledge reuse model, and the new similarity calculation method was used to judge the historical cases with higher fitness, and the practical application has been applied in the production safety accident rescue and emergency drill of CHN Energy's emergency command system. The results show that the proposed method can screen out historical cases that are applicable to the current case in terms of fitness and similarity, provide a feasible treatment reference scheme for the emergency response process of the current case, and effectively shorten the response time of coordinated rescue.

Key words: railway train control system, emergency handling, case search, knowledge reuse, emergency case

ZHAO Kaigong, ZHANG Xiaolei, LI Changming, ZHAO Chenghao, GAI Yongling. Case knowledge reuse method of railway train control system emergency plan[J]. China Safety Science Journal, 2022, 32(S2): 217-224.

Figures/Tables 11

Fig.1

Fig.2

Fig.3

Fig.4

Fig.5

Tab.1

Fig.6

Tab.2

Tab.3

Case description unit weight

C_i	a	b	c	d	e	f
γ-c_i(D)=\|p_c-c_i(D)\|/\|U\|	0.67	0.58	0.83	0.67	0.5	0.75
Sig(C_i)=γ(D)-γ-c_i(D)	0.33	0.42	0.17	0.33	0.5	0.25
$ω (C i) = S i g (C i) / ∑ S i g (C i)$	0.165	0.21	0.085	0.165	0.25	0.125

Tab.3

Tab.4

Partial and weighted similarity between the source case and the present case

局部相似度	故障现象	列控中心部件	无线闭塞中心部件	临时限速服务器部件	地面电子单元部件	安全数据网部件	加权相似度
S_j	0.165	0.210	0.085	0.165	0.25	0.125	1
$S 2 h$ /S_c	0.348	1	0	0	1	0	0.540 0
$S 3 h$ /S_c	1	0	1	1	1	1	0.790 0
$S 4 h$ /S_c	0.384	1	1	0	0	1	0.480 0
$S 5 h$ /S_c	0.384	0	1	0	1	1	0.520 0
$S 6 h$ /S_c	1	1	0	0	1	1	0.750 0

Tab.4

Tab.5

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案例	问题部分						结论部分
案例	故障现象	列控中心	无线闭塞中心	临时限速服务器	地面电子单元	安全数据网部件	故障原因	故障部件	操作
1	电源灯熄灭	电源模块	—	—	电源板	—	跳闸或故障	电源模块	检查;更换
2	网络中断	—	交换机	—	—	路由器	硬件故障; 掉电	交换机; 路由器	检查是否掉电; 更换;检查电源
3	系统崩溃黑屏	显示器	—	服务器	—	—	关闭; 系统损坏	服务器	检查对键盘、显示器、鼠标的连接;重装操作系统和软件
4	亮红灯	—	—	—	处理器板	—	输出通道有短路	处理器板	检查防雷单元;检查输出电缆是否短路
5	控制台红光带	主机	—	—	—	—	断电或死机	主机	重启;检查
6	系统崩溃黑屏	—	服务器	—	—	—	系统损坏	服务器	装操作系统和软件
7	电源灯熄灭	—	服务器	服务器	—	—	掉电	服务器	检查
8	网络中断	—	—	交换机	—	—	硬件故障	交换机	检查
9	通信中断	光缆	接口	接口	—	线路	硬件故障	站间光缆; 接口;交换机	检查;更换

赋值	故障现象a	列控中心故障b	无线闭塞中心故障c	临时限速服务器故障d	地面电子单元故障e	安全数据网故障f	故障原因M₁
0	—	无故障件	无故障件	无故障件	无故障件	无故障件	—
1	控制台红光带	电源板块	服务器	服务器	电路板	线路	掉电
2	亮红灯	通信板	交换机	交换机	处理器版	端口	损坏
3	系统崩溃黑屏	显示器	接口	操作系统	通信板	路由器	短路
4	网络中断	指示灯	—	接口	电源板	主机	故障
5	电源灯灭	主机	—	—	—	—	死机
6	通信中断	光缆	—	—	—	—	—

案例号	问题部分						结论部分
案例号	故障现象	列控中心部件	无线闭塞中心部件	临时限速服务器部件	地面电子单元部件	安全数据网部件	故障原因	故障部件	操作
3	系统崩溃黑屏	显示器	—	服务器	—	—	关闭;系统损坏	服务器	检查对键盘、显示器、鼠标的连接;重装操作系统和软件
当前案例	花屏状态	—	—	服务器操作系统	—	—	系统损坏	服务器	重装操作系统和软件