一种移动式表层沉降和位移监测平台及系统
The mobile surface settlement and displacement monitoring system, which uses drones equipped with GNSS receivers and monitoring bases, solves the problems of high equipment cost, low efficiency, limited accuracy, and poor environmental adaptability in traditional technologies. It achieves low-cost, high-efficiency, and accurate unmanned monitoring, improving monitoring accuracy and environmental adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI WATERWAY ENG DESIGN & CONSULTING CO LTD
- Filing Date
- 2025-09-29
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional surface settlement and displacement monitoring technologies suffer from high equipment costs, low monitoring efficiency, limited accuracy, and poor environmental adaptability, making it difficult to achieve unmanned, low-cost, efficient, and accurate monitoring.
The system employs a drone equipped with a dual-frequency, multi-system GNSS receiver, combined with an inverted triangular pyramid guide post and a monitoring base, to achieve automatic navigation, obstacle avoidance, and pinpoint landing. It integrates UWB positioning tags and QR code markings, supports a rapid static measurement mode, and enables real-time data transmission via a satellite communication link. Data analysis is performed using RTK post-processing algorithms and anomaly detection algorithms.
It reduced equipment costs, improved monitoring efficiency and accuracy, enhanced adaptability and safety in complex environments, enabled fully unmanned operation, simplified monitoring processes, and improved the stability of data transmission.
Smart Images
Figure CN224517765U_ABST
Abstract
Claims
1. A mobile platform for monitoring surface subsidence and displacement, the platform comprising: include: The drone is equipped with a dual-frequency multi-system GNSS receiver, and the bottom of the drone is fixed with an inverted triangular pyramid guide post. The drone is equipped with automatic cruise, obstacle avoidance and fixed-point landing modules. The monitoring base uses an inverted triangular truncated positioning hole to match the inverted triangular pyramid guide post on the bottom of the drone, and integrates UWB positioning tags and QR code markings to guide the drone to accurately dock on the monitoring base. The GNSS receiver is fixed to the fuselage of the UAV and is used to collect three-dimensional coordinate data of the monitoring points; The flight control platform, which includes a flight control terminal, a communication system, and a flight control system, is used to control the take-off, landing, cruise, and homing of the UAV.
2. The mobile platform for surface settlement and displacement monitoring of claim 1, wherein, The UAV has a maximum takeoff weight of ≤6.8kg, environmental adaptability meets the requirements of maximum wind resistance of level 7, maximum flight altitude of 500m, and endurance of 30-50 minutes with a payload of 1.5kg.
3. The mobile surface settlement and displacement monitoring platform according to claim 1, characterized in that, The UAV's RTK mode positioning accuracy is ±0.1m horizontally and ±0.15m vertically, and the integrated PID control algorithm enables fully unmanned operation.
4. The mobile platform for surface settlement and displacement monitoring of claim 1, wherein, The QR code mark is square with a side length of 10-15cm and is used to trigger the UAV to start the landing procedure at a height of 10m. The UWB positioning tag works with the UWB module of the UAV to achieve a positioning accuracy of ±3cm.
5. The mobile platform for surface settlement and displacement monitoring of claim 1, wherein, The inverted triangular pyramid guide post is made of carbon fiber composite material, which meets the dual requirements of lightweight and strength; the inner wall of the inverted triangular truncated positioning hole is made of carbon fiber composite material or ceramic coating, which realizes physical alignment with the inverted triangular pyramid guide post at the bottom of the UAV within ±3cm.
6. The mobile platform for surface settlement and displacement monitoring of claim 1, wherein, The monitoring base has a load-bearing capacity of ≥20kg. After horizontal calibration, it is fixed on a hard foundation at the monitoring point where settlement needs to be monitored. The monitoring points have good visibility between them, with no large areas of buildings around them at an elevation angle of 10 degrees or more, and are far away from strong signal sources and interference sources.
7. The mobile platform for surface settlement and displacement monitoring of claim 1, wherein, The GNSS receiver supports four major satellite systems: GPS, GLONASS, BDS, and Galileo. It has a static positioning accuracy of ±5mm in three dimensions and a data sampling rate of 10Hz. It is fixed to the drone body by a carbon fiber bracket and shock-absorbing pads.
8. A mobile surface layer settlement and displacement monitoring system, characterized in that, include: The information acquisition layer, consisting of the mobile surface settlement and displacement monitoring platform as described in claim 1, is used to acquire three-dimensional coordinate data of monitoring points; The data transmission layer uses a satellite communication link, including a UAV communication module, satellite communication and ground receiving antenna, to achieve real-time data transmission. The data processing center is equipped with calculation software, analysis tools, and a report generation module. The calculation software supports RTK post-processing algorithms, and the analysis tools integrate Z-score anomaly detection and K-means clustering algorithms, outputting settlement, displacement, and settlement rate with an accuracy of ±5mm.
9. The mobile surface layer settlement and displacement monitoring system of claim 8, wherein, The data processing center supports the automatic generation of settlement trend curves and alarms for abnormal data.