地铁隧道形变监测系统数据通信研究

 运营地铁隧道的形变包括隧道纵轴线沿横断面的位移及隧道横断面形状的变化，当隧道形变过大时将影响地铁安全运营。本研究提供一种基于图像传感器和隧道检测装置的隧道形变检测系统。由于隧道形变监测采集的数据量很大，传输过程难免出错。通过制定通信协议和编写相应的软件程序，实现上位机与下位机的数据通信，可实现系统数据的收发、计算和存储功能，程序简洁，数据接收基本可靠，且能长期稳定运行，为上位数据处理和信息发布提供可靠的基础数据，进而为准确预测地铁隧道的运营情况提供参考。

Data Communication Research of Subway Tunnel Deformation Monitoring System

The deformation of operating subway tunnel includes the displacement of the tunnel longitudinal axis line along the cross-section and the changes of tunnel cross-sectional shape. However, the security of subway operation should be affected if the deformation of tunnel is too large. A deformation detection system has been given in this article, which is made based on the image sensors and tunnel deformation detecting devices. And the deformation detection could be perfectly accomplished owing to its high degree of automation and good repeatability. But actually the amounts of data collected are so large that some mistakes can not be avoided in the process of transmission. Here data collected could be transmitted in security by making reasonable concise communication protocols and compiling effective communication programs, which provides reliable basic data to right monitoring results. The data communication between the host computer and the slave computer is basically achieved. The functions of accounting and saving and collecting and receiving of data also carry out. The program is compact and the received data is credible. The stability of the program meet the requirement of the system. The basic data can be provided for the host computer. According to the data, it can be trust to the intuitionistic data for the information issuance. The data can be provided for forecasting correctly the condition of the subway tunnel.