研究目的
To develop a flexible, lightweight, and minimally intrusive monitoring system for assessing animals' behavioral responses, improving comfort and free movement during activity logging.
研究成果
The developed system provides a simple, cost-effective, and customizable method for animal monitoring, reducing impact on animals and enabling monitoring of small species previously not feasible. It shows potential for wide applications in animal studies, with future integration with satellite trackers for broader monitoring capabilities.
研究不足
Experiments lasted only up to one day, limiting long-term durability assessment. The system may not be suitable for all animal species or environments without further customization. Wireless range is up to 100 meters, which could restrict monitoring in vast areas without additional infrastructure.
1：Experimental Design and Method Selection:
The system is based on detecting magnetic fields from composite magnets using a magnetic sensor. It includes fabrication of NdFeB/PDMS composite magnets with varying powder concentrations, alignment with a magnetic field, and coating for durability. A wireless data acquisition unit with Bluetooth transmission is used for real-time monitoring.
2：Sample Selection and Data Sources:
Animals monitored include crabs (Libinia emarginata), giant turtles (Aldabrachelys gigantean), and giant clams (Tridacna gigas). Data is collected on movements such as limb activity, heart rate, and gill movements.
3：List of Experimental Equipment and Materials:
NdFeB microparticles (MQP-16-7FP), PDMS (Sylgard 184), PMMA molds, CO2 laser cutter, magnetic field sensor (TMR2305), Bluetooth chip (nRF52832), flexible battery, Parylene C coating, smartphones, and computers for data display and storage.
4：Experimental Procedures and Operational Workflow:
Fabricate composite magnets by mixing PDMS and curing agent, adding NdFeB particles, pouring into molds, aligning with a 1.5 T magnetic field, curing at 90°C for an hour, and coating with Parylene C. Attach magnets to moving body parts and sensors to fixed parts. Acquire signals wirelessly via Bluetooth, transmit to smartphone app, and analyze data.
5：5 T magnetic field, curing at 90°C for an hour, and coating with Parylene C. Attach magnets to moving body parts and sensors to fixed parts. Acquire signals wirelessly via Bluetooth, transmit to smartphone app, and analyze data.
Data Analysis Methods:
5. Data Analysis Methods: Magnetic field vectors are transmitted at 10 readings per second, visualized on a smartphone app, and further processed on a computer to extract information on activity levels, behaviors, and environmental effects.
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