一种无稳定观测点结构多点位移透射式激光监测系统及其数据处理方法

By using a multi-point displacement transmission laser monitoring system for structures without stable observation points, and by employing a bidirectional laser transmission sensing unit and data processing methods, the problem of insufficient accuracy in structural displacement monitoring under unstable observation points has been solved, and accurate multi-point displacement monitoring of large-scale civil engineering structures has been achieved.

CN120740476BActive Publication Date: 2026-07-17HARBIN INST OF TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HARBIN INST OF TECH
Filing Date
2025-07-07
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing structural displacement monitoring technologies are difficult to accurately measure structural displacement under conditions without stable observation points, especially for multi-point displacement monitoring of large civil engineering structures where the accuracy is insufficient.

Method used

A multi-point displacement transmission laser monitoring system without stable observation points is adopted, including a bidirectional laser transmission sensing unit, a laser emitter, and a synchronous control and data processing module. The system uses a semi-transparent/semi-reflective mirror window and a diffuse reflection target to form a laser spot. The camera identifies the displacement of the laser spot, and the structural displacement is calculated by combining the data processing methods.

Benefits of technology

Precise monitoring of multi-point displacement of structures was achieved under conditions without stable observation points, improving the monitoring accuracy and stability of large-scale civil engineering structures.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120740476B_ABST
    Figure CN120740476B_ABST
Patent Text Reader

Abstract

本发明提出一种无稳定观测点结构多点位移透射式激光监测系统及其数据处理方法。该系统主要由双向激光透射传感单元、激光发射器以及同步控制与数据处理模块三部分构成。所有双向激光透射传感单元按直线排列,两端设有激光发射器,所发射激光束穿透所有的双向激光透射传感单元。双向激光透射传感单元内部设有半透 / 半反镜面视窗、漫反射靶标和相机。半透 / 半反镜面视窗反射入射激光束至漫反射靶标形成光斑,相机记录并识别光斑移动位移。结合本发明提出的数据处理方法,可在无稳定观测点条件下实现待测结构多点位移准确监测。本发明所述系统适用于桥梁、隧道、高层建筑等大型土木工程结构的施工期变形监控或者工程全寿命周期结构健康监测。
Need to check novelty before this filing date? Find Prior Art