Railway
1. Monitoring Background
China is carrying out large-scale construction and planning of rail transit, such as high-speed rail and subway, all over the country. The implementation of the rail transit structure health automation monitoring system will make it easier for enterprises and safety supervision departments to quickly grasp the latest developments of technical indicators closely related to project safety, and will help to timely grasp the operation and safety status of the project. Collecting monitoring data, recording remediation plans, systematically organizing and accumulating information, timely grasping the structural health status of existing projects under construction or in operation, and constantly summarizing experience and lessons can provide a reliable basis for disease control and also provide reference for related engineering design, construction, operation and maintenance units in the future.
2. System Overview
Online monitoring of rail transit mainly includes: structural health monitoring of rail transit during construction and operation, such as high-speed rail lines, railways, and subway operating lines. Among them, automated monitoring of roadbed settlement and track settlement is an important factor in monitoring during construction and operation.
Main monitoring contents
Monitoring basis
Technical Specification for Construction Monitoring of Urban Rail Transit Engineering DG/TJ 08-2224-2017
GB50911-2013 of Technical Specifications for Monitoring of Urban Rail Transit Engineering
Technical Code for Monitoring of Building Foundation Pit Engineering GB 50497-2009
Code GBT50308-2017 for Surveying of Urban Rail Transit Engineering
System function
Data acquisition and transmission function
The equipment of data acquisition and transmission system of our company mainly includes: data acquisition instrument, serial port server, A/D conversion equipment, transmission cable and wireless data transmission module. For each monitoring sub-item, the information collection and transmission node will be arranged according to the on-site environment of the structure, and the real-time data obtained by various parameter sensors will be uploaded to the central server host through the wireless data transmission module for data recording and analysis.
Reserved manual port for data collection and transmission
When manual monitoring is required, our company's data acquisition and transmission system still has a transmission port for manual portable acquisition instrument, which can collect data manually.
Data analysis function
The monitoring and analysis option is to organize the data collected and returned by all devices on site and display them in the system according to time. The system will self-diagnose the data to determine its validity, mainly by comparing the same group with historical data to see if it is a single mutation value. For effective data, the system will sort out and analyze the classification, and users can view and analyze the data they need.
Monitoring and early warning function
According to the different range of monitoring and control indicators, the early warning is divided into three levels for monitoring process management, and the monitoring data is compared with the three-level early warning value to determine the monitoring and early warning level of the site.
Information push function
Our online monitoring system works 24 hours a day without interruption. In case of abnormal conditions of structures, it will send early warning information to the user's mobile terminal. According to different alarm levels added by the user, the system will automatically send short messages according to the alarm level.
Report production function
The user can carry out to check out the data report export, after the user enters the system, you can download the data you need.
