Real-time monitoring and early warning device for tunnel collapse

The utility model discloses a real-time monitoring and early warning device for tunnel collapse. The transmitting part comprises a plurality of laser transmitting devices; the monitoring part comprises a monitoring device and a display device; laser emitted by a laser emitting device installed at th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CEN YANGRUN, WU XIAOFENG, XU HONGBING, CHEN ZHANGLIN, LI JIN, LIU HONGJIANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GYROSCOPIC INSTRUMENTS MEASURING MEASURING ANGLES MEASURING AREAS MEASURING DISTANCES, LEVELS OR BEARINGS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MINING NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS SURVEYING TESTING
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