Surveying Surveillance: Alex Haw gives a talk at the Surveillance Symposium, London where he discusses the speculative idea of making surveillance visible to the public.
41. COTS Dust
GOALS:
• Create a network of sensors
• Explore system design issues
• Provide a platform to test Dust
components
• Use off the shelf components
42. COTS Dust - RF Motes
– Atmel Microprocessor
– RF Monolithics transceiver
• 916MHz, ~20m range, 4800 bps
– 1 week fully active, 2 yr @1%
N
W
E
S
2 Axis Magnetic
Sensor
2 Axis Accelerometer
Light Intensity
Sensor
Humidity Sensor
Pressure Sensor
Temperature Sensor
43. COTS Dust - Optical Motes
Laser mote
• 650nm laser pointer
• 2 day life full duty
CCR mote
• 4 corner cubes
• 40% hemisphere
44. 1 Mbps CMOS imaging receiver
10mW, 1mrad
Optical
Filter Collection
Lens
64x64
CMOS
Imager
10cm
5mm
200m
Photosensor
CRC Check
SIPO Shift
Local Bus Driver
Register
2 km
Field of View
of Single Pixel
Signal Processing
A/D Conversion
Off Chip
Bus Driver
Pixel Array