Browse Prior Art Database

ARIGO - A Peer-to-Peer Home Automation Network

IP.com Disclosure Number: IPCOM000116419D
Original Publication Date: 1995-Sep-01
Included in the Prior Art Database: 2005-Mar-30
Document File: 6 page(s) / 211K

Publishing Venue

IBM

Related People

Bapst, U: AUTHOR [+7]

Abstract

Peer-to-Peer Control and Communication Network Involving Personal Computers and Stations (Modules or Nodes) Connected via Their AC Power Lines

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 29% of the total text.

ARIGO - A Peer-to-Peer Home Automation Network

Peer-to-Peer Control and Communication Network Involving Personal
Computers and Stations (Modules or Nodes) Connected via Their AC
Power Lines

      Described is a peer-to-peer home network called ARIGO which
connects all electric appliances in a home or office to exchange
control and data communication signals between a personal computer
and various types of stations (modules or nodes) via the AC power
line.  The advantage of such a network lies in the fact that power
lines are installed in any building, hence new installations can be
avoided.  The electric appliances comprise all lamps, heating,
window-screen controls, security devices, etc. Any other
communication medium (2-wire copper, infrared wireless, radiowave,
telephone modem) can be incorporated for specific requirements.  In
many cases, a combination of some of the communication means
mentioned before is the most appropriate solution for a user.

      In general, the network called ARIGO herein consists of one PC
and various stations (Figure) to read out sensors and control
specific functions according to the parameters read from the sensors.

      The key ingredients of ARIGO are a controller (preferably a PC,
a notebook, a control board, a touch screen, or a workstation), an
electronic device interfacing the controller and the communication
medium (AC power line) and the stations (Figure).  The interface
contains the electronic device to modulate the signal frequency onto
the AC power line as well as to receive and recognize data or control
signals.  The controller (henceforth, simply called PC) serves to
install the stations in the network, configure the signal and control
functions within and amongst the stations, and is used to monitor,
collect and store data like e.g., temperature, brightness, current,
voltage, power, etc.  Otherwise, the PC may be switched off and the
network is running independently.

      Remote access to ARIGO is provided by a telephone or fax modem
connected to the PC or to ARIGO stations to set parameters and to
check the status of the different electric devices and appliances
within the ARIGO network.

General security criteria:
  -  The PC must identify a particular station and distinguish it
from
      other stations within the same AC circuit or on the same radio
      frequency.
  -  The stations may not be accessed by a second PC running in the
      same AC circuit or using the same wireless communication
scheme,
      e.g., the same radio frequency.
  -  The identification of the stations must be complex enough to
      avoid triggering of the station by AC or radiowave noise and/or
      external AC disturbances.
  -  It must be easy for the user to install a new station and do the
      configuration properly.
  -  For a given combination of stations it must possible to replace
      the PC (in case of break-down, for insta...