Substrate-Embedded Fiber Optic Sensors for Boundary Traversal Detection
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Solution Overview
Problem
Conventional barriers defining boundaries are ineffective in preventing unauthorized traversal due to remote locations and limited policing resources, allowing unauthorized individuals to traverse barriers without detection or timely response.
Innovation Solution
A system utilizing fiber optic sensors embedded in a substrate along the boundary, capable of detecting and responding to intrusions by generating alarms, lights, or tracking intruders, with the ability to determine the location and direction of traversal events with high resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional barriers (fences, walls) are used to define boundaries, then physical impediment is provided, but detection capability and response time are insufficient
Solution Approach 1:
The patent replaces conventional mechanical barriers (fences, walls) with a fiber optic sensing system that uses optical principles to detect intrusions. The fiber optic sensors embedded in the substrate detect vibrations, strain, or temperature changes caused by traversal attempts, converting mechanical intrusion events into optical signals for detection and alerting authorities in near real-time.
Solution Approach 2:
The fiber optic sensors act as an intermediary between the physical boundary and the monitoring system. They are embedded in the substrate along the boundary and mediate the detection process by sensing physical disturbances and transmitting this information to the monitoring system, enabling timely detection without requiring constant physical presence.
2Measurement precision
If fiber optic sensors are embedded in substrate along the boundary, then detection precision and response time improve, but device complexity and installation difficulty increase
Solution Approach 1:
The patent merges the fiber optic sensors with the existing substrate (soil, ground, or barrier structure) by embedding them during installation. This integration approach combines the sensing function with the boundary structure itself, reducing the need for separate monitoring infrastructure and simplifying the overall system while maintaining high detection precision.
Solution Approach 2:
The fiber optic sensing system serves multiple functions: it detects intrusions, provides location information, and can be installed along existing boundaries without requiring complete replacement of the boundary structure. This multi-functionality reduces complexity by using a single system for detection, monitoring, and alerting.
3Reliability
If continuous surveillance is implemented along the boundary, then detection capability improves, but energy consumption and cost increase
Solution Approach 1:
The fiber optic sensing system enables periodic or event-triggered monitoring rather than requiring constant active surveillance. The sensors continuously monitor for disturbances but only activate alerting mechanisms when intrusions are detected, significantly reducing energy consumption while maintaining reliable detection capability throughout the boundary.
Solution Approach 2:
The fiber optic sensors are passive elements that detect intrusions through physical disturbances in the substrate without requiring active power consumption for sensing. The system leverages the natural physical properties of the substrate and the sensors to provide continuous surveillance with minimal energy input, as the intrusion events themselves generate the detection signals.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Provides continuous surveillance and near real-time alerts for boundary traversal, enabling immediate response by authorities, enhancing the detection and deterrence of unauthorized access.
Implementation Method 1
Sensors within a substrate that extends along the boundary can be used for producing such signals. The substrate can be soil of which ground at the boundary is comprised, a man-made material located within such soil or a material from which a barrier along the boundary is constructed. The sensors can be fiber optic sensors that extend contiguously along a length of the boundary
Data Source
AI summary
Disclosed herein are systems and methods configured to produce and monitor signals that characterize activities corresponding to intruders (e.g., persons and/or animals) traversing a boundary that at least partially defines a designated area. Such activities can characterize one or more persons traversing a boundary or attempting to traverse a barrier that defines the boundary. Sensors within a substrate that extends along the boundary can be used for producing such signals. The substrate can be soil of which ground at the boundary is comprised, a manmade material located within such soil or a material from which a barrier along the boundary is constructed. The sensors can be fiber optic sensors that extend contiguously along a length of the boundary and/or can be fiber optic sensors that are located at discrete locations along the length of the boundary. The signals can cause one or more responsive actions to be implemented.