CN-121999577-A - Multi-mode intelligent slope monitoring target system and slope monitoring method

CN121999577ACN 121999577 ACN121999577 ACN 121999577ACN-121999577-A

Abstract

The invention discloses a multi-mode intelligent slope monitoring target system and a slope monitoring method, wherein the system comprises an intelligent target arranged on the surface of a slope and multi-spectrum detection equipment for remotely observing the slope; the intelligent target active heating unit is used for generating infrared thermal signals with specific codes, the multispectral detection device is used for acquiring a slope infrared thermal image sequence taking the intelligent target as an observation target, identifying and positioning the intelligent target from the slope infrared thermal image sequence according to the specific codes in the infrared thermal signals, tracking the position of the intelligent target in the slope infrared thermal image sequence in a sub-pixel level precision manner to generate displacement data of the slope surface, analyzing temperature field distribution in the slope infrared thermal image sequence, and identifying a local temperature gradient abnormal region which is not matched with the displacement data by combining the displacement data. According to the invention, all-weather high-precision displacement monitoring and thermal anomaly area synchronous identification of the side slope surface are realized, and the early warning timeliness of geological disasters is improved.

Inventors

WU KEWEI
HUANG MEIHUA
HE XIAOGANG
YAN JINYU
GUO CHANGQUAN

Assignees

北京卓视智通科技有限责任公司

Dates

Publication Date: 20260508
Application Date: 20251225

Claims (10)

1. The multi-mode intelligent slope monitoring target system is characterized by comprising an intelligent target arranged on the surface of a slope and multi-spectrum detection equipment for remotely observing the slope; the intelligent target comprises a shell and an active heating unit integrated inside the shell, wherein the active heating unit is used for generating an infrared heat signal with specific codes; the multispectral detection device is used for: acquiring a side slope infrared thermal image sequence taking the intelligent target as an observation target; Identifying and locating the intelligent target from the side slope infrared thermal image sequence according to a specific code in the infrared thermal signal; tracking the position of the intelligent target in the slope infrared thermal image sequence with sub-pixel level precision to generate displacement data of the slope surface; And analyzing the temperature field distribution in the side slope infrared thermal image sequence, and combining the displacement data to identify a local temperature gradient abnormal region which is not matched with the displacement data.
2. The multi-modal intelligent slope monitoring target system of claim 1, wherein the intelligent target further comprises a temperature sensing unit disposed on the housing for acquiring temperature data of an installation location of the intelligent target.
3. The multi-modal intelligent slope monitoring target system of claim 1 wherein the active heat generating unit comprises a micro-heating element and an encoding control circuit for controlling the micro-heating element to operate in a predetermined encoding mode to generate the specifically encoded infrared heat signal.
4. The multi-modal intelligent slope monitoring target system as claimed in claim 3 wherein the predetermined encoding mode is to cause periodic on-off or stepped power changes to the micro-heating element.
5. The multi-modal intelligent slope monitoring target system of claim 1 wherein the multi-spectral detection device further comprises a visible light imaging unit for acquiring visible light image data of the slope.
6. The multi-modal intelligent slope monitoring target system of claim 1, wherein the multi-spectral detection device is deployed at a fixed observation point and continuously scans and images a slope area where a plurality of the intelligent targets are deployed to form a temporally continuous monitoring data stream.
7. The multi-modal intelligent slope monitoring target system of any of claims 1 to 6, wherein the multi-spectral detection device is specifically configured to: and calculating the position change of the intelligent target in continuous image frames through a digital image phase correlation algorithm based on the slope infrared thermal image sequence, and generating the displacement data of the slope surface.
8. The multi-modal intelligent slope monitoring target system of claim 7, wherein the multi-spectral detection device is specifically configured to: And analyzing the temperature field distribution in the side slope infrared thermal image sequence, comparing the space-time variation of the temperature field distribution with the displacement data, and judging the local temperature gradient abnormal region which is not matched with the displacement data by adopting an artificial intelligence algorithm.
9. The multi-modal intelligent slope monitoring target system of claim 1, wherein the housing is constructed of a thermophysical parameter engineered material having a thermal capacity and conductivity configured to characterize local thermal boundary conditions of the housing in contact with the slope surface.
10. A slope monitoring method employing a multi-modal intelligent slope monitoring target system as claimed in any one of claims 1 to 9, comprising: acquiring a side slope infrared thermal image sequence taking the intelligent target as an observation target; Identifying and locating the intelligent target from the side slope infrared thermal image sequence according to a specific code in the infrared thermal signal; tracking the position of the intelligent target in the slope infrared thermal image sequence with sub-pixel level precision to generate displacement data of the slope surface; And analyzing the temperature field distribution in the side slope infrared thermal image sequence, and combining the displacement data to identify a local temperature gradient abnormal region which is not matched with the displacement data.

Description

Multi-mode intelligent slope monitoring target system and slope monitoring method Technical Field The invention relates to the technical field of geological disaster monitoring and early warning, in particular to a multi-mode intelligent slope monitoring target system and a slope monitoring method. Background Slope stability monitoring is a key link for geological disaster prevention and control, and the prior art has obvious limitations in practical application. The traditional contact type monitoring method (such as inclinometers, strain gauges and the like) needs to arrange sensors in or on the surface of a slope body, so that the construction difficulty is high, the cost is high, the influence of construction disturbance is easy, and the sensor is difficult to deploy in a large scale in complex mountain areas with dense vegetation and steep topography. Even if a non-contact optical measurement means is adopted, multiple constraints are faced, namely firstly, the monitoring efficiency is seriously dependent on illumination conditions, the image acquisition quality is greatly reduced at night, in cloudy days or in rainy and snowy days, all-weather observation in the true sense cannot be realized, secondly, dense vegetation coverage can completely cover the surface of a slope, so that an optical target cannot be identified, the loss rate of a monitoring point is extremely high, thirdly, the measuring precision and the data continuity of the existing method are insufficient for micro deformation such as shallow peristalsis and uneven settlement, and the space-time evolution detail of a displacement field is difficult to capture. More critical is that the traditional monitoring stays at the position data recording layer, lacks the perception capability of landslide precursor information such as micro-crack initiation, local stress concentration and the like, cannot identify the development process of a sliding crack surface from microscopic features such as thermodynamic abnormality, non-uniformity of a displacement mode and the like, causes early warning lag, and is difficult to realize the technical crossing from 'post-monitoring' to 'pre-prediction'. In addition, the existing monitoring system is also difficult to meet the application requirements of unmanned and remote integration in the aspects of data transmission, energy consumption management and long-term stability in the field, and the construction of an intelligent early warning network for regional landslide disasters is restricted. Accordingly, there is a need to provide a solution to the above-mentioned problems. Disclosure of Invention In order to solve the technical problems, the invention provides a multi-mode intelligent slope monitoring target system and a slope monitoring method. In a first aspect, the invention provides a multi-mode intelligent slope monitoring target system, which has the following technical scheme: the intelligent target is deployed on the surface of a side slope, and multispectral detection equipment for remotely observing the side slope is provided; the intelligent target comprises a shell and an active heating unit integrated inside the shell, wherein the active heating unit is used for generating an infrared heat signal with specific codes; the multispectral detection device is used for: acquiring a side slope infrared thermal image sequence taking the intelligent target as an observation target; Identifying and locating the intelligent target from the side slope infrared thermal image sequence according to a specific code in the infrared thermal signal; tracking the position of the intelligent target in the slope infrared thermal image sequence with sub-pixel level precision to generate displacement data of the slope surface; And analyzing the temperature field distribution in the side slope infrared thermal image sequence, and combining the displacement data to identify a local temperature gradient abnormal region which is not matched with the displacement data. The multi-mode intelligent slope monitoring target system has the following beneficial effects: the system solves the problems of insufficient measurement precision of small deformation and missing of landslide precursor information caused by illumination and vegetation shielding, realizes all-weather high-precision displacement monitoring and synchronous identification of thermally abnormal areas on the surface of the side slope, and improves the early warning timeliness of geological disasters. Based on the scheme, the multi-mode intelligent slope monitoring target system can be improved as follows. In an optional manner, the intelligent target further comprises a temperature sensing unit, wherein the temperature sensing unit is arranged on the shell and is used for acquiring temperature data of the installation position of the intelligent target. The intelligent target temperature monitoring system has the beneficial effects that temperature data of th