Long distance IR beams interfaced to RS485 based alarm system

[backspace]

Long distance IR barrier beam:
Use a http://www.roithner-laser.com, http://scratchpad.wikia.com/wiki/InfraRedLeds
parabolic reflector for IR beams to extend the range of the beam. The
parabolic reflector focuses the IR beam of the diode installed inside
the it. http://www.kemo-electronic.com Infrared led kit has a range of
50m using a magnifying lens placed over the receiving IR-led.
Combining a parabolic reflector lens to transmit to a magnifying lens
at the receiving end will extend the range of a barrier beam to 100m.
The Kemo Kit nr.b213 #24-194 only has a magnifying lens over the
receiving IR diode and achieves a distance of 50m. Elektor
Electronics p.55 and p.19 July/August 2002 has a design idea on
building an IR barrier circuit.

Order the passive components and pay somebody in China to hand
assemble it in bulk. Connect upto 400 of these cheaply built IR beam
modules around every window and doorway and interface it to
http://scratchpad.wikia.com/wiki/RS485 circuits for our custom
designed alarm system. Each RS485 node connects an ARM processor which
monitor the N/C condition on its port as close
as possible to the IR circuit, PIR or contact switch.

See http://scratchpad.wikia.com/wiki/ConfiguringAlarmSystem and
http://scratchpad.wikia.com/wiki/SecuringPerimeter

[Robert L Bass]

> Order the passive components and pay somebody in China to hand
> assemble it in bulk...

Sorry, that's just not an option.

--

Regards,
Robert L Bass

=============================>
Bass Home Electronics
941-925-8650
4883 Fallcrest Circle
Sarasota · Florida · 34233
http://www.bassburglaralarms.com
=============================>

[Frank Olson]

Robert L Bass wrote:
>> Order the passive components and pay somebody in China to hand
>> assemble it in bulk...
>
> Sorry, that's just not an option.
>


For you, yeah... the Chinese don't speak Portuguese.

[backspace]

http://en.wikipedia.org/wiki/Z-Wave

The fatal flaw with radio communication is spectrum jamming. If you
cut the phone lines the GSM radio will kick in. But if you use
http://www.phonejammer.com - there goes the GSM link.

One should try and run http://scratchpad.wikia.com/wiki/RS485 wires or
even http://scratchpad.wikia.com/wiki/DsLam twisted pair to all the
nodes and have some permanent http://scratchpad.wikia.com/wiki/MeshNetworking
Wi-Fi backup system to stream to a distant premise alarm data in real-
time. The mesh networking the wiki refers to is the http://www.locustworld.com
Ad-hoc
protocol it contains over 400 page on installing and operating an Ad-
hoc mesh. Zigbee for example uses some ad-hoc mesh protocol.

The only alternative to phonejammer on the GSM spectrum is to build
your own http://scratchpad.wikia.com/wiki/GpsAndGprs GSM modem by
hacking the patents that detect spectrum jamming.

The present alarm systems with all their cryptic input panels is a
joke. We need to use an embedded ARM processor running Linux and
Python that accepts a text file or some XML standard.

[Robert L Bass]

"backspace" wrote:
>
The fatal flaw with radio communication is spectrum jamming. If you
cut the phone lines the GSM radio will kick in. But if you use
http://www.phonejammer.com - there goes the GSM link.

Fortunately, there just aren't that many people out there using
jammers to block a neighbor's lighting control system.

> The present alarm systems with all their cryptic input panels is a
> joke...

Not really. Although a skilled person with the right tools and prior
knowledge of the system in use at a given property could get through,
most residential users need not fear. The guy with the right talents
and the right gear will set his sights on bigger targets.

> We need to use an embedded ARM processor running Linux and Python
> that accepts a text file or some XML standard.\

Build one and I'll market it.

--

Regards,
Robert L Bass

=============================>
Bass Home Electronics
941-925-8650
4883 Fallcrest Circle
Sarasota · Florida · 34233
http://www.bassburglaralarms.com
=============================>