As a summer Intern at the Indian Institute of Science under K.V.S Hari, I worked on an inertial navigational system using a pair of wireless Crossbow® TelosB Mote’s. The TelosB mote is built on the MSP430 platform with an accelerometer, gyroscope, humidity, temperature and other sensors on board.
I attempted to compute and plot the movement of one of the sensors relative to its starting position using Matlab, using the log with the sensor readings; the final goal was to make this a real-time navigation system. I initially used the two axis accelerometer, but faced problems with the jitter in the readings, and a bias introduced by the earth’s gravitational force. I tried to adjust for this using the inbuilt 2 axis gyroscope, but still faced large problems with the bias.
On the suggestion of my advisor, I eventually stopped work on this project, and began exploring Binaural Spatial Audio.Tags: 2010, Accelerometers, Embedded Systems, Indian Institute of Science, Matlab