US 12,264,997 B2
System for synchronous monitoring of multi-point displacement and rotation responses of large structure, and data analysis method therefor
Dongyu Zhang, Harbin (CN); and Li Ni, Harbin (CN)
Appl. No. 18/008,995
Filed by Dongyu Zhang, Harbin (CN)
PCT Filed May 13, 2021, PCT No. PCT/CN2021/093545
§ 371(c)(1), (2) Date Dec. 8, 2022,
PCT Pub. No. WO2022/142065, PCT Pub. Date Jul. 7, 2022.
Claims priority of application No. 202011626873.5 (CN), filed on Dec. 30, 2020.
Prior Publication US 2023/0280236 A1, Sep. 7, 2023
Int. Cl. G01M 5/00 (2006.01); G01B 11/00 (2006.01)
CPC G01M 5/005 (2013.01) [G01B 11/005 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A system for synchronous monitoring of multi-point displacement and rotation responses of a structure, characterized in that the system comprises a laser sensor mounted at a monitoring point of the structure, and a laser receiver mounted at a fixed position,
wherein a laser device is disposed inside the laser sensor, and wherein the laser receiver is disposed on an optical path of the laser sensor;
wherein laser sensors are mounted at each monitoring point of the structure, and each laser receiver receives laser emitted by at least one laser sensor;
wherein the laser receiver comprises: a laser receiving window for receiving laser emitted by the laser sensor, a tilting plate adjustable in angle, a tilting target capable of reflecting laser, a front camera for photographing the tilting target, a plane reflecting mirror, a plane reflecting mirror, a non-reflective target, and a rear camera for photographing the non-reflective target; and the laser receiving window is disposed at a front end of the laser receiver, the tilting plate is disposed at a front bottom of the laser receiver, the tilting target is laid on a surface of the tilting plate, the front camera is mounted on a front top of the laser receiver, a lens of the front camera faces the tilting target, the plane reflecting mirror is disposed on a top of the laser receiver, the plane reflecting mirror is disposed at a middle bottom of the laser receiver, the non-reflective target is disposed at a rear bottom of the laser receiver, the rear camera is mounted at a rear top of the laser receiver, and a lens of the rear camera faces the non-reflective target.