DIY Zoning: 7 Years Down The Road Vadim Tkachenko Before we start: questions Write notes and pass them up so there's a.
Download ReportTranscript DIY Zoning: 7 Years Down The Road Vadim Tkachenko Before we start: questions Write notes and pass them up so there's a.
DIY Zoning: 7 Years Down The Road Vadim Tkachenko Before we start: questions Write notes and pass them up so there's a chance to answer them in depth later, online Forgot to ask? Not a problem – send it to the mailing list Introduction Introduction What DZ is? A Knowledge Base A Temperature Zoning System Introduction What DZ is? A Knowledge Base A Temperature Zoning System What DZ is not? Can't buy Can't pay anyone to make for you (yet) Gestation Gestation Iowa house built in 1849 with no A/C Arizona tri-level – scorching upstairs, freezing downstairs Gestation Iowa house built in 1849 with no A/C Arizona tri-level – scorching upstairs, freezing downstairs Existing solutions: dumb systems, lying salespeople, incompetent consultants Gestation Iowa house built in 1849 with no A/C Arizona tri-level – scorching upstairs, freezing downstairs Existing solutions: dumb systems, lying salespeople, incompetent consultants Last straw: “You're too $^&* smart, we're not gonna do business with you” Inception Inception What one can't buy, one has to make KISS and cheap Proper way to eat the elephant: one bite at a time Therefore, “The Seven Steps” Technicalities Technicalities Step 1: Sensor Network Cheap: $3 1-Wire sensors Distributed Autoconfiguration, capabilities discovery Heterogeneous Technicalities Step 1: Sensor Network Cheap: $3 1-Wire sensors Distributed Autoconfiguration, capabilities discovery Heterogeneous Step 2: Data Acquisition rrdtool, xAP, xPL, generic broadcast Technicalities Step 3: Visualization Too many ways You'd be surprised Long term trends important Stop, think, fix obvious problems Technicalities Step 4: Dampers R/C Servos Cheap “Worse Is Better” Technicalities Step 5: Core Logic Container architecture Unlimited zones Arbitrarily complex schedules Pluggable control strategies Technicalities Step 6: Passive Mode No need to fiddle with HVAC May just work for you Gets insurance off your back Technicalities Step 7: Total Control STOP! Abandon hope, all ye who enter here You must understand the consequences They will be after you if something goes wrong Technicalities Beyond All kinds of sensors, not just temperature Fault tolerance: can of worms Home automation integration Remote access Family friendly controls Denial Denial HVAC contractors: “This is more complicated than rocket science” Not really, but close enough Denial HVAC contractors: “This is more complicated than rocket science” Not really, but close enough “Get out of our business and stay out” I don't think so Denial HVAC contractors: “This is more complicated than rocket science” “Get out of our business and stay out” Not really, but close enough I don't think so It is too complicated for them, too Acceptance Acceptance Top link on Google for “temperature zoning” Ahead of Honeywell, Carrier, Trane, Arzel Zoning and others (they do this for living) Respected by HVAC contractors http://hvac-talk.com/vbb/showthread.php?t=141295&page=2 Side Effects You can be sure you did something good when it turns out you've been ripped off Imitation, flattery, Honeywell thermostats Side Effects You can be sure you did something good when it turns out you've been ripped off Imitation, flattery, Honeywell thermostats They still haven't called Side Effects You can be sure you did something good when it turns out you've been ripped off Imitation, flattery, Honeywell thermostats They still haven't called Big, bad wolf out there Side Effects You can be sure you did something good when it turns out you've been ripped off Imitation, flattery, Honeywell thermostats They still haven't called Big, bad wolf out there Chilling effect: most of research is private now Maturity Maturity Monolithic became modular Centralized became distributed “Do all things poorly” became “do one thing, do it good”, many times over “Need to know what great ideas to discard” Interoperability is the key Change of focus: Now that we've taken care of your sinusitis... Enterprise Ramifications Enterprise Ramifications Parallel semantics perfected Distributed semantics uncovered Fault tolerance is most stringent There is no such thing as too much monitoring JMX instrumentation helps Long term trends important: visualize! Component model and pattern reuse Questions? DIY Zoning http://diy-zoning.sourceforge.net/ http://diy-zoning.blogspot.com/ Google search “temperature zoning”