Low latency disturbance detection using distributed optical fiber sensors
| Autor: | Daniel M. Munoz, Ingemar Söderquist, Carolina Franciscangelis, Fabiano Fruett, Walter Margulis |
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| Rok vydání: | 2017 |
| Předmět: |
Engineering
Optical fiber business.industry Optical cross-connect Sobel operator 02 engineering and technology Electromagnetic interference law.invention Computer Science::Hardware Architecture 020210 optoelectronics & photonics law Fiber optic sensor 0202 electrical engineering electronic engineering information engineering Electronic engineering Time domain Latency (engineering) business Field-programmable gate array |
| Zdroj: | ICNSC |
| Popis: | Distributed optical fiber sensors based on phase-sensitive optical time domain reflectometry (Φ-OTDR) are feasible options to detect perturbations in kilometric security perimeters or mechanical structures. This technique takes advantage of electromagnetic interference immunity, small dimensions, lightweight, flexibility, and capability. Moreover, this technique can be combined with dedicated hardware architectures, in order to improve its performance and reliability. This work proposes the use of parallel hardware architectures to implement real-time detecting and locating perturbations in a Φ-OTDR distributed optical fiber vibration sensor. Hardware architectures of the iterative moving average filter and the Sobel filter were mapped on field programmable gate arrays, exploring the intrinsic parallelism in order to achieve real-time requirements. A performance comparison between the proposed solutions was addressed in terms of hardware cost, latency and power consumption. |
| Databáze: | OpenAIRE |
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