sensors & surveillance in remote and border areas
Post on 15-Feb-2016
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SENSORS & SURVEILLANCE IN
REMOTE AND BORDER AREASRichard May
Myotis Wireless
TopicsThe limits to PowerThe Power hogA new approach
Limitless power ….
.. and limits …. Shoot here
SIMPLER IS BETTER …
Vibration
> 10 years continuous
Colibrys
Proximity
9,000,000 measurements
Maxbotix
Images
900,000 VGA pictures
Omnivision
Radio
½ - 5 months
Leading industrial brand
Why?
The easy and the hardEASY: Turn the radio
off!HARD: wake up whenever needed
Low power radio operation
Wake up and join
network
SleepSleep
t
I
WASTED
Say hello to “chirps”Chirp:
A signal whose frequency increases or decreases with time
Chirp Example (up-chirp)
Signal
A
tt
Frequency
f
The usefulness of chirps
The chirp at the transmitter…Attenuated, with noise, at receiver
Chirp’s frequency / time relationship
Detected signal
CSS Communications System
Data
t
Data
Myotis Beta prototype - actual
t
Rx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
2.5 ms
Radio
1-5 years
Myotis
Flexible Network Topology
Industrial Version
Questions?
Thank you!
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