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An OCARI-Based Wireless Sensor Network for Heat Measurements during Outdoor Fire Experiments.
Thierry Carlotti1, Xavier Silvani2, Eric Innocenti3
1Laboratoire Sciences Pour l'Environnement, CNRS UMR 6134-University of Corsica, Bat.CRIT 3ieme etage, Campus Grimaldi, 20 250 CORTE Northern Corsica, France. carlotti@univ-corse.fr.
Sensors (Basel, Switzerland)
|January 10, 2019
Summary
This study introduces a new wireless sensor network for outdoor fire experiments, overcoming limitations in energy consumption and timestamping found in older systems. The OCARI stack provides reliable data for heat measurements in real-world fire conditions.
Area of Science:
- Engineering
- Computer Science
- Fire Science
Background:
- Wireless sensor networks (WSNs) are crucial for remote data acquisition.
- Existing WSN solutions for fire experiments, like Zigbee, have limitations in energy control and precise timestamping.
- Proprietary systems hinder user control over critical measurement parameters.
Purpose of the Study:
- To develop and evaluate a novel wireless measurement system for outdoor fire experiments.
- To overcome the limitations of existing wireless solutions, particularly in energy consumption and timestamping.
- To provide a reliable and controllable WSN for heat flux and temperature measurements in fire scenarios.
Main Methods:
- Design of an Atmel/ARM-based platform compatible with the OCARI (Open Communication Protocol for Ad Hoc Reliable Industrial Instrumentation) stack.
- Integration of K-type thermocouples and heat fluxmeters for data acquisition.
- Deployment of a 5-node WSN in outdoor fire experiments with controlled fuel loads and variable wind conditions.
- Comparison of WSN data with simultaneous measurements from a standard wired datalogger.
Main Results:
- The OCARI-WSN system successfully recorded heat transducer data during natural fires.
- Measurements from the wireless system demonstrated high correlation with the wired datalogger.
- The system overcame previous technological breakdowns in timestamping for low-energy wireless solutions.
- Reliable data acquisition was achieved under variable fire sizes and wind conditions.
Conclusions:
- The developed OCARI-WSN offers a robust and controllable wireless solution for outdoor fire experiments.
- This system addresses key limitations in energy consumption and timestamping, improving upon existing technologies.
- The findings support the adoption of this WSN for accurate and reliable fire research.
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