Research Article

Health Monitoring System with Hybrid Laser Sensor Networks and Cloud Computing for Subway Tunnels

Table 1

Features of various deformation monitoring technology.

MethodEfficiencyPrecisionApplication scopeCostReal-time monitoringInteraction

Automated close-range photogrammetry [13]NormalNormalSectionNormal (60–180 RMB/m)YesNo
Measuring robot [14]Relatively highRelatively highSection, critical areaNormal (75–250 RMB/m)YesNo
Automatic hydrostatic leveling system [15]HighRelatively highOnly settlementRelatively high (376–450 RMB/m)NoNo
Bassett convergence system [16]HighPoorMedium section, critical areaExtreme high (1592–2062 RMB/m)NoNo
SOFO and FBG optical fiber [17,18]HighHighSection, critical areaNormal (190–250 RMB/m)NoNo
Intelligent monitoring and early warning systemHighRelatively highSection, critical areaYesYes