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Research on the Method of Keeping the Safety of Zone Controller System Data

Author: YueLong
Tutor: WangHaiFeng
School: Beijing Jiaotong University
Course: Traffic Information Engineering \u0026 Control
Keywords: CBTC Zone controller ZC Data Security Data security methods Relational database
CLC: TP309.2
Type: Master's thesis
Year: 2011
Downloads: 67
Quote: 1
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Abstract


Area Control System (Zone Controller) plays an important role in the CBTC (Communication Based Train Control) system , it is provided for the train running approach MA information , ZC system data security is directly related to the train operation . So how to protect the the ZC system data security is essential . This paper describes the protection of the CBTC system data security and data security method for ZC subsystem . Its data constraint relations and the actual line topology relationship by introducing the concept of object-relational database , the database design . Database version number through the multi version control system management , real-time monitoring of data , modify , and improve the security of the system database . In addition, two by two method of data security to provide further protection. This paper focuses on how to protect dynamic data security and discuss functional modules for ZC . Actual ZC data were analyzed by the method of using cyclic redundancy . Further, by the lines of a strong logical data modeling language , the formal data model is established on the line data , and the security of the data model in ZC system Formal analysis . Finally, in order to further protect the correctness ZC MA information , the paper proposes a reverse search MA information system provides redundant data for proofreading, so as to ensure the correctness and availability of data .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > General issues > Security and confidentiality > Data security
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