Design of the Long-term Safety Monitoring System of Zhicheng Yangtze River Bridge

• 来源期刊: 中国铁路（英文版）
• 关键词: Zhicheng Yangte River Bridge safty monitring system four-level network systems VPN technology
• 年，卷（期）: 2008,（1）
• 页码范围: 39-47
• 页数: 9页
• 语种: 英文

摘要

The long-term safety monitoring system of Zhicheng Yangtze River Bridge was established in the principle of open information service and standardized systems engineering.The ADSL dynamic IP communication network established by using VPN technology and application of encryption technology,tunnel technology and user identification accreditation technology have made the system safer and more reliable.The system can fulfill real-time,regular and triggered signal collection according to needs and may give notice or alarm for the discovery of real-time failure.Monitored data can be collected and stored to provide reliable data for stipulating technical indicators for safety operation of the large-span railway bridges.The system,after its completion,can maintain its long-term stable running,take hold of the running condition of all locations of bridge under monitoring,evaluate the overall situation and life cycle,and make available the technical reserves for the Infrastructure Inspection Center of MOR.