Rokonet Orbit-6 Specifications download pdf (Page 35)

e Detection Technologies

(A) (B)

Variable

Pet

Threshold

Intruder

Signal

Level

Pet

Signal

Level

Fixed

Threshold

PIR

Signal

Strength

Figure

Frequency /Crossing

Speed of the Beams

Adaptive

Threshold

Fixed Threshold

in conventional

detectores

PIR

Signal

PIR Signal Level Depends

on the Crossing Speed

Figure

ACT™ enables superior catch performance by

switching to MW-only mode either when the room

temperature is close to body temperature, or when

a cloaking attempt is recognized. Delivering

exceptionally high detection capabilities, as well as

immunity from false alarms, ACT™ thwarts even the

most sophisticated burglars.

Intelligent Digital Signal Processing

PIR Technology for WatchOUT, Industrial LuNAR, iWISE

and Wireless PIR detectors

Setting the alarm threshold for detectors is a major

challenge for manufacturers. If the threshold is

set too low, the detector will be prone to false

alarms; if set too high, the detector will not be

sufficiently responsive. ROKONET’s Intelligent DSP

provides a real-time adaptation of the threshold

to the speed that the intruder crosses the beams

rather than a factory-fixed threshold, as shown in

Figure 2.

Variable Pet Threshold™ (VPT™)

PIR Technology for WatchOUT, iWISE DT Pet, iWISE Pet,

Zodiac DT Pet, Zodiac Pet and Wireless Pet

ROKONET’s unique VPT™ algorithms – together with

a custom-designed lens – enables detectors to easily

distinguish between intruders and pets, while

ensuring superior catch performance. PIR signal

levels depend on the crossing frequency of the

detection beams. An intruder with a high crossing

frequency (B) may have a lower signal level than a

pet with a lower crossing frequency (A). Using a

constant threshold may result in detecting pets

while ignoring people!

ROKONET’s VPT™ algorithm solves this problem by

measuring the crossing frequency and selecting the

correct threshold level for the alarm. The threshold

is set above the pet signal and below the intruder

level for each frequency, assuring that intruders are

detected while pets are ignored, as illustrated in

Figure 3 above.

Frequency /Crossing

Speed of the Beams

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 59 60

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Rokonet Orbit-6 Specifications Page 35

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