This wireless device is able to log upto 9 axis motion data, time and geo-location at a configurable frequency into an SD card. Additionally, it also has the capability to continuously record data to a remote EC2 Instance wirelessly via TCP/IP at a max rate of 40Hz and was tested to upload a several million records. The project was developed with the intention of analysing the motion of an elephant to determine optimal kinetic energy harvesting techniques. Two scintific contributions were made based on this dataset. First was published at IEEE GLOBECOM 2016 named "Design of a Low-Frequency Linear Motion Testbed for Electromagnetic Kinetic Energy Harvesters in JumboNet" and the second "Design of a Kinetic Energy Harvester for Elephant Mounted Wireless Sensor Nodes of JumboNet" published at the NITC/SEARCC Conference.
More information about this development can be found from here.
This device was designed to efficiently harvest as low as microwatts (μW) to milliwatts (mW) of energy generated from a variety of sources such as solar, thermoelectric, electromagnetic and vibration energy. The strength of energy scavenging capability of this design emerges from the capabilities of the TI BQ25504 IC. The MSP430 MCU further extends the unit’s lifetime with it's ultra-low power capabilities. This system was formulated with the intention of enabling a mechanism to log prolonged locomotion data of wild elephants to propose a solution to the Elephant Human Conflict (HEC) in Sri Lanka.
During the internship at the Airport and Aviation, I undertook a project to develop a simple circuit that demonstrates the basic concept of a radar using reflected ultrasonic waves. The project was presented at the annual national exhibition "Deyata Kirula", 2013. The project involved no programmable devices.