zondag 16 maart 2014

Requirements


  • The Somfy controller (SC) needs to be able to communicate via Ethernet with the Vera. I want to position the SC close to the part of the house where the shades are, to limit the cabling to the sensors. A network cable and power outlets are already present on that location.
  • The automatic control should not cause the shades to go up/down too often.
  • The shades should be opened automatically in the evening after sunset.
  • One vertical shade is mounted on the first floor facing the South and covers all windows from the outside.  Main purpose of this shade is to limit the temperature of the rooms there. 
    • Two windows there can be opened and prevent lowering the shade and detection is needed wether the windows are opened/closed. 
    • Another window and a door can also prevent lowering the shade, but they are always closed and only opened for maintenance. An override must be available to block automatic control in case of maintenance.
    • The shade should be lowered when the sun starts heating the rooms.
  • Another vertical blind is mounted on the outside of the kitchen window also facing the South. Two purposes here: limit the temperature in the room, but also to prevent direct sunlight into the kitchen.
    • One window there can be opened and prevent lowering the shade, but this windows is always closed and only opened for maintenance. An override must be available to block automatic control in case of maintenance.
  • A horizontal blind is mounted in a sun room at the back of the house. Two purposes here: limit the temperature in the sun room, but also to prevent direct sunlight into the house.
  • The values of the sun light / temperature readings and also the control of the shades should be logged to be able to analyse and fine tune the automatic control.

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