Can 1 AIRS Beam Protect A 4-Sided Perimeter Or Should We Deploy Multiple Sensors?
Can 1 AIRS Beam Protect A 4-Sided Perimeter – Yes, an active infrared beam can theoretically be used to protect a 4-sided perimeter, though we have never tried it ourselves.
You’d need to deploy a single-beam active infrared sensor and multiple reflectors to get around your 4-sided perimeter. Though a long-range AIRs beam would typically push to up to 300 metres line of sight, you’ll lose 60 per cent of your range when reflecting it 3 times. That will bring your perimeter down to around 120m to ensure sufficient signal is getting from the transmitter to the receiver to maintain a seal.
When using a single reflected AIRs beam it’s also worth considering use of a double-knock device in external applications. Double knock devices fulfill a similar role to pulse count functions in a PIR and while double knock will reduce sensitivity, it will ensure the possibility of false alarms will be significantly reduced.
You’d only bounce beams for reasons of budget or tricky power location, or just for the sheer joy of getting more out of a detector that had way more reach than your application required – we’d suggest you play around with such a detection zone at home or the office first – though there are customers who love to experiment.
We’d be happy if an AIRs expert weighed in with some comment either below or replied directly to editor@sen.news because while we’re convinced it’s technically possible to bounce AIRs around a 4-sided sterile zone we can’t find a solution that claims to be able to do it.
Regardless – here’s a link to a local Takex AIRs beams distributor – no doubt Stanley El Komala at BGWT will be able to tell you if he thinks we’re crazy or not – as ever, there’s more SEN news here.
“Can 1 AIRS Beam Protect A 4-Sided Perimeter Or Should We Deploy Multiple Sensors?”
