This optical fiber-based slope monitoring system offers significant advantages over traditional electrical systems. Its passive design eliminates the need for power at the sensing points, greatly increasing reliability in harsh environments such as extreme temperatures and remote locations. Using Fiber Bragg Grating (FBG) technology, it provides highly accurate biaxial tilt measurements up to 40°, enabling early detection of ground movement. The system’s multiplexed capability allows multiple sensors to be installed on a single fiber, reducing installation complexity and cost. These features make it a scalable, low-maintenance, and robust solution for continuous, real-time monitoring of slope stability and infrastructure safety.

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Landslides and structural failures pose serious risks to infrastructure and public safety, especially in areas with unstable terrain. Traditional monitoring systems often rely on electrical components, which are prone to failure in harsh environmental conditions such as extreme temperatures, moisture, and ground movement. These limitations hinder accurate, real-time monitoring and delay early warnings that could prevent disasters. There is a critical need for a more reliable, durable, and precise monitoring solution that can operate effectively in challenging environments to detect early signs of ground instability.

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The solution is a real-time slope monitoring system that uses optical fiber technology, specifically Fiber Bragg Grating (FBG), to detect ground movement and structural instability. Unlike conventional systems, this innovation is fully passive and contains no electrical components, making it highly reliable in harsh environments. It enables accurate biaxial tilt measurements of up to 40° and can operate in extreme temperatures ranging from -25°C to 80°C. Its multiplexed design allows many sensors to be deployed along a single fiber, offering a scalable, low-maintenance, and highly effective early warning system for landslides and infrastructure monitoring.

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The innovation lies in a real-time, optical fiber-based monitoring system that uses Fiber Bragg Grating (FBG) technology to detect ground tilt and structural movement with high precision. Unlike traditional systems that rely on electrical components, this fully passive system operates without power at the sensing points, making it highly durable and reliable in extreme conditions. It enables biaxial tilt measurements of up to 40° and supports the deployment of multiple sensors on a single fiber through a multiplexed design. This allows for large-scale, continuous monitoring of slopes and structures, offering an advanced and resilient solution for early warning and disaster prevention.

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