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!