Cots Dust, Large Scale Models for Smart Dust, are devices that incorporate communications, processing, sensors, and batteries into a package about a cubic inch in size. The devices were largely designed by Seth Hollar under the advisorial guidance of Professor Kris Pister.
Master's Thesis on COTS Dust is here.
COTS Dust were designed with the intention of testing out communication and sensing capabilities of large numbers of nodes. Potential applications are limitless! They can range from fire detectors to espionage, from earthquake monitoring to people tracking.
|RF Mote||RF 916.5MHz OOK
5kbps 20 meter range
Sensors: 2 axis magnetometers, 2 axis accelerometers, light, tempereature, pressure
|The RF motes' final design was finished in the early part of 1999. Since then, various projects have been undertaken to test communication protocols for distributed sensor networks with the RF motes.|
|Laser Mote||Laser Module: 3 mW optical transmission150 mWelectrical power.
10's of km range.
Sensors: temperature, light, pressure, humidity
|The Laser Mote has been used to demonstrate the long range communication capabilities in small packages. Matthew Last and company have demonstrated 21 Km one way communication from San Francicsco to Berkeley.|
|Corner Cube Reflector/Light Receiver Communication.
Range is function of the intensity of the laser.
|The Corner Cube Reflector (CCR) is a MEMS device that allows for passive laser communications. The device is being used as a test platform to demonstrate the communication algorithms that will ultimately be implemented on Smart Dust.|
|RF 916.5MHz OOK
10kbps 20 meter range
|The Mini Mote is a miniaturized version of the RF Mote. It's smaller size and simpler circuit design makes it both cheaper and easier to handle.|
|Steerable Laser Beam Communication with integrated CCD camera
|MALT was built in order to demonstrate steerable laser beam communication. Algorithms are underway to investigate how two such devices can locate and communicate to one another without initially knowing the location of the other device.|
|RF 916.5 MHz OOK
10kbps 20 meter range
Sensors: light, temperature
|weC is the next revision of the Mini Mote. The primary advantage of the weC mote is that it can be reprogrammed wirelessly. Currently, weC mote is being used in an EECS graduate class at Berkeley.|
|The IrDA mote was designed to interface with other IrDA compliant devices (ex. Palm Pilot). The ubiquity of the IrDA standard would allow these motes direct communiction with commerical equipment.|
Questions? Comments? Please contact Seth Hollar.
This site is a mirror of http://www-bsac.eecs.berkeley.edu/archive/users/hollar-seth/macro_motes/macromotes.html