研究目的
The integration of biosensors into the EPON network (IEEE 802.3ah) to monitor breathing, and verification of their coexistence under laboratory conditions.
研究成果
The study confirms the functionality of fibre-optic breath monitors based on grating and interferometric principles and their successful integration into a passive optical network without affecting data communication. Key findings include the importance of controlling interference visibility for phase sensors and the feasibility of operating grating sensors from the provider side without data loss.
研究不足
The simulation environment is primarily designed for fibre communication networks, making accurate simulation of complex sensors like interferometers challenging. The integration of sensors into the network without compromising data communication requires careful control of modulation depth and spectral overlap.
1：Experimental Design and Method Selection:
The study involves the integration of two basic fibre-optic breath monitors into the EPON network, testing their coexistence with conventional data communication services through simulation and laboratory tests.
2：Sample Selection and Data Sources:
The sensors are tested in a laboratory setting, with their outputs compared to a conventional breath monitor.
3：List of Experimental Equipment and Materials:
Includes a Mach-Zehnder interferometer as a phase sensor, a light source tunable in the 1500-1610 nm range, a detector array, a measuring card, and a reference breath monitor (Model 1132 Pneumotrace II?).
4：Experimental Procedures and Operational Workflow:
The process involves inserting the sensors into the network, simulating their impact on data communication, and verifying their function as biosensors through laboratory measurements.
5：Data Analysis Methods:
The signal from the sensors is analyzed using an application written in LabView, performing discrete Fourier transformation and frequency filters for further frequency domain analysis.
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