摘要
检测地铁隧道是否发生形变关系到列车行车安全。近年来,基于激光扫描测量原理的车载式隧道形变检测系统有了长足发展,但仍然存在相对定位精度不高的问题,导致最终的形变检测精度受限。本文设计了基于多传感器融合的地铁隧道形变检测定位系统,能够将同一线路同一位置多次检测的数据匹配,快速定位隧道位置,利于建立隧道模型。实验结果表明,该系统能够有效进行相对定位,精度可达±10cm,具有一定的工程应用价值。
Deformation detection of the metro tunnel is related to the subway driving safety. In recent years, the vehiclemounted tunnel deformation detection system based on laser scanning measurement principle has developed a lot, but the relative positioning accuracy is still not high, which leads to the limitation on the ultimate deformation detection accuracy. In this paper, the deformation detection and positioning system based on multi-sensor data fusion is designed, which can match the multiple metrical data of the same line at the same position and position the tunnel quickly to help building the tunnel model. Experimental results indicate that the system can effectively carry out the relative positioning, with the accuracy of ±10cm. Therefore, this system has a certain engineering application value.
出处
《电子设计工程》
2016年第21期147-149,152,共4页
Electronic Design Engineering
关键词
多传感器融合
相对定位
地铁隧道
形变检测
multi-sensor data fusion
relative positioning
metro tunnel
deformation detection
