the view from mt invensys geoff mulligan artificer – invensys controls dir. technology –...

The View from Mt Invensys

Geoff MulliganArtificer – Invensys Controls

Dir. Technology – Advanced Building Systemsgeoff@mulligan.com

Who is Invensys

•Automotive HVAC Controls

•Humidistat and motor speed controls

•Time Controls

•Thermostats

•Heat alarms

•Time Controls

OK, so?

● We will ship:– 50M smoke and co detectors– 40M to 50M appliance controls– 10M water heater controls– 5M thermostats– 1 – 2M refrigeration controls– ...

● We want to/need to/must interconnect these devices!

Goals

● Lots of Sensors – 100s; Many controls – 10s● No new wires; Reduce installation costs● Inexpensive - < $3 modules● Internet Connectivity● Open Standards

Open Standards

Standards are great – everyone should have one.

actually

“Efficiencies of proprietary solutions will be overcome by technology advances within one

development cycle”

What about Zigbee

● SNL● Stack is too:

– large – 64K– complex– expensive– untested– not IP compatible

Barriers to deployment● New Radio● New MAC – CSMS/CA plus GTS/Beaconing● New Network – AODV plus Cluster Tree● New API – Zigbee API plus ZODs● New Application

● CSMA/CA only MAC● AODV and IP● Sockets and SNMP

Risk Mitigation

To v6 or Not to v6

● 10M to 50M devices per year● Devices have IEEE 64bit addresses● Auto-configuration● No Nat