Bench Testing and Field Deployment The development process has been rigorous, with extensive bench testing to ensure the system's reliability before field deployment. The Seeed Studio Xiao ESP32-C3 module has proven particularly adept at handling sensor readings, including smoothing out the data from the MaxBotix ultrasonic sensor. Data transmission success rates have been impressive, with a 96 per cent success rate in NB-IoT data transmission during testing, and 100 per cent data capture over multiple readings. Despite an accidental drop test, the sensors remained fully
operational, demonstrating their durability. The first two units have now been deployed in the field, and early indications suggest that the sensors are performing exceptionally well, delivering reliable data to SEPA's corporate timeseries database via an AWS API.
Achieving Key Objectives Syme set out with clear goals for this project, all of which have been met: • Fit and Forget: The sensor is designed for long-term deployment with minimal maintenance.
• High Precision: The system achieves 1mm resolution in water level measurements and high accuracy in temperature and humidity readings.
• Self-Sustaining Power: The combination of a rechargeable battery and solar panel eliminates the need for regular battery replacements.
• Frequent Data Collection: The sensor takes readings and transmits data every 15 minutes, providing timely and detailed environmental data.
• Cost-Effective: There are no ongoing subscription costs, making the system a financially sustainable solution.
• Hot Swappable Sensor Module: The sensor pack can be easily replaced or upgraded in the field, adding to its longevity and adaptability.
• Corporate Database Integration: The system integrates seamlessly with SEPA's existing data infrastructure.
Looking Forward With the successful deployment of the initial units, Bryce is now looking to scale up production, with plans to deploy a larger batch of sensors in the near future. Additionally, there are exciting developments on the horizon, including a radar sensor upgrade and a version of the sensor system that incorporates satellite communications for use in even more remote locations. Bryce Syme’s work with the Dragino Technology Co.,
Limited kit, Fibox TEMPO Electrical Enclosure, and other advanced components exemplifies the potential for innovative, reliable, and cost-effective solutions in environmental monitoring. As SEPA continues to deploy these sensors, the data collected will play a crucial role in safeguarding Scotland’s natural environment, demonstrating the significant impact of cutting-edge technology in the field.
"PERFECT 7"
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