1. External perimeter protection Active Infra Red Motion sensors
Farshid Ossareh
December 2004

2. 1 – Beginning: The audience challenge
principle
Theory
Working
Switching
Visibility
Fog discrimination
1 – Beginning: The audience challenge

3. SB series use the active infra red light
950 nm
400 nm
500 nm
700 nm
600 nm
5µm
Near
infrared
Far infrared
Ultraviolet
V i s i b l e
L i g h t
ACTIVE
Infra Red
PASSIVE
Infra Red
TYPE of the detector >>>>
SB series use the active infra red light

4. Working principle
Invisible IR signal beams between transmitter and reciever over a protected distance
Transmitter
Reciever

5. Working principle 2°
Transmitter
Reciever
Transmitter send a light signal which is invisible to
human (infrared signal wave of 900nm).
Reciever act as a elctronic eye, analyze the amplitude of the signal send by transmitter

6. Working principle Not sensitive to rain2°
Transmitter
Reciever
Not sensitive to rain
Not sensitive to any movement doesn’t cut the beams
Not sensitive to EM wave and signals

7. Communication principle
Pulsed beams and selectable channels
Ch1
Ch2
Ch3
Ch4
Channels are made by pulse frequency
Rec Trans
Receiver on ch1 will only see the Transmitter on ch1 & …
Ch 1
Ch1
Ch 2

8. Switching principle SB250 / SB2100
Communication princple: Pulsed beams and selectable channels
Rotection zone is about 20cm
Both beams needs to be intruppted to trigger the alarm

9. Switching principle SB450 / SB4100 / SB4200
Communication princple: Pulsed beams and selectable channels
Rotection zone is about 40cm
Both beams needs to be intruppted to trigger the alarm

10. Visibilty diagram AIR Range
Geneal rule: the range is equal to visibilty on site.
The SB series range
Theoretical max range: 2550m
When the visibility is 200m, the range will be 200m
When the visibility is 60m (fog), the range will be 60m
AIR Range
200m
100m
50m
If the average visibility during the normal fog is 80m, it is recommended not to install a 100 or 200m product.
80m
50m m m Visibility

11. Fog dectection
Receiver analyse the signal power

12. Fog dectection
When the signal amplitude at the reciever reaches the minimun level the disqualification relay will be triggered,

13. Spec. Feature
If the alarm relays are connected in serie and there is a steady obstruction, the AIR beam will release the alarm relay and trigger disqualication relay.
Alarm relay
(NC)
Max 60 s
Disq relay
(NO)

14. 1 – Beginning: The audience challenge2
Range
Selection
Modular beams
Modular pillars
1 – Beginning: The audience challenge

15. How to select the products
On price
Perception to detection
Perimeter Detection
Low risk
Perimeters high walls
Perimeters rond the building
High risk
Big factories
Mid Risk
Garage/Concession
Small factory

16. External perimeter protection Active Infra Red Motion sensors
Modular AIR beams

17. SB250 / SB2100 2 beams Range: SB250 125m indoor 50m outdoor
4 channel selection
Thermostaic contrlled heater on board
Protection hight: 20cm
Tx Ch 1
Rx Ch 1
Tx Ch 2
Rx Ch 2
Tx Ch 3
Rx Ch 3
Tx Ch 4
Rx Ch 4

18. SB450 / SB4200 4 beams Range: SB250 125m indoor 50m outdoor
4 channel selection
Thermostaic contrlled heater on board
Protection hight 40cm
Tx Ch 1
Rx Ch 1
Tx Ch 2
Rx Ch 2
Tx Ch 3
Rx Ch 3
Tx Ch 4
Rx Ch 4

19. External perimeter protection Active Infra Red Motion sensors
Mounted in Pillars

20. Mounted in pillars
To increase the protection hight, SB beams can be mounted in a mouting pillars.
Available in : 1m, 1.5m, 2m, 2.5m, 3m

21. Back to back moting
Both sides of the pillars can be used for the back to back mounting

22. 1 – Beginning: The audience challenge3
1 – Beginning: The audience challenge
Installation

23. Beam alignement
Horizontal alignment
Vertical alignement

24. Power supply cable selction
Cable lengthe for power supply of 12V DC
Cable lengthe for the heater of 12V DC/AC
In case the mentioned cable lengthe/diameter limits your installation,
use the optional 230VAC power supply (SB52)

25. Installation guideline
The protected area should not cut any beams

26. Installation guideline
Max 10° as accepted for the correct functionality
Maximum 10°

27. Installation guidelines
Fence is the best physical perimeter protection which keep the large animals away

28. Installation guidelines
No vegeation my be between the Tx and Rx

29. 1 – Beginning: The audience challenge4
Application
1 – Beginning: The audience challenge

30. Military base
VIP Estates /
Residences
Airports
Communication
Centre
Correctional
Institution
Commercial
Industrial