Interesting concept but I don't think it's advised to be opening and closing vents like that. I researched bypass dampers a few years ago and the hvac guys mentioned not to close off vents. Something to do with static pressure in the system and stress on the blower.
I think the state of hvac in the modern home is ridiculous in this day and age. We need a system like that one but it needs to be paired with a variable blower and compressor. It's definitely time for a smart hvac system (that's reasonably priced).
Yup, I agree - it's time for modernization. Every room should be a zone with a sensor suite (air quality, humidity level, and temperature) and every zone should have individual controls for the following:
1. Fresh, filtered air from the outside
2. Heating
3. Cooling
4. Air movement (via ceiling fan)
5. Humidity (humidification & dehumidification)
6. (optional) Radiant heat for warm floors
Obviously there is spillover to the entire house, but I don't really want to pay to heat or cool a room that no one is using (not to mention control HVAC on dozens or hundreds of feet of ductwork). If the system could automatically keep each room at the minimum levels to avoid temperature swing issues (mold, rot, etc.) but then give you super-zoned control, that'd be ideal. Slap a radiant floor in, some ceiling fans, and a ceiling-mounted Mr. Slim system like this:
http://innovations.mitsubishi-les.com/en/mr-slim/pla-rp
Mitsubishi is slowing adding residential digital controls into their system: (for Europe anyway)
http://www.melcloud.com/
Also, indoor air quality has historically been pretty bad in American homes, especially since a lot of us use non-vented range hoods on our stoves. So you could break it down into separate systems that all tie together, like a ductwork system that has an air purifier:
http://www.iqair.com/home-air-purifiers/wholehouseairpurifiers/perfect16
There's a good article here with more info about ventilation & IAQ: (plus a bit on HRV/ERV stuff)
http://www.iqair.com/newsroom/2013/energy-efficiency-ventilation-and-indoor-air-quality
The problem is, there's still some missing technology. We have individual room humidifiers & dehumidifiers, and whole-house versions of those like this:
http://www.ultra-aire.com/
&
http://www.aprilaire.com/whole-house-products/whole-house-products/humidifiers
But not really ones that do individual rooms, aside from standalone models that you plug into the wall. I think as more homes get more airtight thanks to stuff like concrete & steel construction, or SIP boards with better insulation, this will become more important for managing your energy bills & giving everyone individual comfort. Again, not that it's an
overly huge deal, but if you can save a few bucks in HVAC costs & also give people control per room zone, that'd be a big seller for me, at least. Plus, you get a little more distribution so that if you have one failure, it doesn't nuke control for your whole house, which is nice. But again, that's kind of minor stuff since it rarely happens & you can just have a fixit company come out for a repair within a day or two.