Geological deformation analyzer

Geological deformation analyzerIt is a new type of non-contact two-dimensional displacement monitoring sensor, based on machine vision technology, using an artificial intelligence dedicated embedded system platform, high-performance image sensors, professional grade photography lenses, embedded industry best image measurement algorithms, local calculation, and multiple communication interfaces to output real-time two-dimensional displacement data. It has high measurement accuracy, adaptive distance measurement, large measurement range, and multiple targets per machine; Features such as small size, high integration, and easy installation and construction.

The target or feature point (located at key parts of the tested structure) is imaged on the photosensitive surface of the image sensor through the telephoto optical system of the digital image displacement sensor (digitizing the three-dimensional space image in reality into a virtual two-dimensional plane image. Matching the object point in objective reality with the image point in the digital image one by one). After image processing recognition and high-precision positioning technology, the precise position of the image point is determined, and finally the spatial position of the target point is determined by the object image relationship. By comparing and analyzing the spatial positions of feature points at different times, the two-dimensional displacement changes of feature points are determined, and the deformation parameters of the corresponding positions of the measured structure are obtained. The working principle is shown in Figure 3.

Geological deformation analyzerFeatures and characteristics

Based on machine vision and high-precision sub-pixel image algorithm technology, it has higher accuracy compared to traditional measurement sensors and can simultaneously provide two-dimensional displacement data

Non contact measurement: The equipment adopts non-contact imaging method, which is less affected by environmental temperature and humidity, and can be used in full view

Can replace traditional static level to monitor bridge deflection and displacement;

One machine with multiple targets, high data correlation: reduces the cost of multi-point measurement and provides multi-point displacement parameters at the same time,

High sampling frequency: Using hardware modules and algorithms for high-speed image acquisition, processing, storage, and transmission, it has a high sampling frequency to avoid missing data in unexpected events;

Watchdog Protection: Supports software and hardware watchdogs to ensure that devices work 24/7 without stopping, ensuring real-time long-term monitoring in complex outdoor environments;

Proprietary technology to avoid interference: The device adopts a special invisible light wavelength target, effectively avoiding visible light interference and reducing interference caused by rainy and foggy weather.

Technical Specifications

Installation Diagram

As a form of deformation description, deflection can evaluate the quality and operational status of bridges, reflecting their stiffness. The dynamic deflection of a bridge is the most real-time reflection of its stiffness and the most realistic response of the bridge under vehicle loads. Under the action of vehicle loads, bridge structures will experience greater deformation and stress than under the same static load, therefore monitoring the dynamic deflection of bridges has important scientific research value and practical significance.

The digital image displacement sensor used for bridge deflection measurement has high monitoring accuracy, large measurement range, multi-point deflection synchronous real-time measurement, small size, high reliability, easy installation and construction, and is suitable for long-term, online automated measurement. During deflection measurement, the target is installed at the position of the test point and rigidly connected to the measured target; The digital image sensor is installed in a relatively static and stable position (such as a bridge pier). After the image sensor in the sensor captures changes in the target, the parameters of the target's position over time can be calculated through image measurement algorithms, and the displacement of the target can be analyzed and calculated to obtain the dynamic deflection changes of the measured target. Long term monitoring can also obtain static deflection changes of the bridge. The layout of measuring points and monitoring data are shown in Figure 4.

3.2 Software Diagram

Select the appropriate area in the software as the area of interest, and the software will calculate the position of the light and mark it in the center, which users can use as a reference.