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Process for allocating addresses to newly connected apparatus in a domestic network controlled by a master controller

  • US 5,481,750 A
  • Filed: 09/01/1994
  • Issued: 01/02/1996
  • Est. Priority Date: 01/17/1991
  • Status: Expired due to Fees
First Claim
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1. Process for the allocation of addresses in a domestic network for the distribution of electrical energy in a dwelling, said domestic network using carrier currents for a transmission of information between emitter-receivers (2, 3) called slaves which are connected by a socket (9) to said domestic network, each of said slaves comprising a microcontroller (4, 5) and an EEPROM memory adapted to contain the addresses relative to the slave and to the dwelling and at least one master controller (MC) (6) comprising a display unit (DU) and a microcontroller (7) for information processing which is connected to a programming keyboard (8), said master controller comprising memory storing user programs and the address allocated to each slave located in said dwelling, said process comprising the steps of:

  • a) a user activating the master controller (MC) by typing on the keyboard (8) a numeral corresponding to said address to be allocated and for indicating to said master controller (MC) that a new slave is connected to said domestic network and requests the allocation of an address;

    b) awaiting a first message M1 from the slave and starting simultaneously a time-delay at the end of which the master controller (MC) is automatically deactivated if it receives no message from the slave newly connected;

    c) said user actuating a pushbutton (13) on the said newly connected slave which triggers a production by a program (14) of said first message (M1) for requesting the allocation of an address;

    d) sending said first message (M1) onto said domestic network to the master controller (MC);

    e) delaying the transmission of an acknowledgment signal (ACK) from said slave until said slave receives a second message (M2) transmitted by the master controller (MC);

    f) transmitting a second message (M2) to the slave, by the master controller (MC) upon receiving a message (M1), said message (M2) comprising said numeral corresponding to said address allocated by said user of the slave; and

    g) storing, in said EEPROM memory of said slave, said allocated address contained in said message (M2), said allocated address thus becoming the address of said slave on said domestic network;

    h) transmitting, through said domestic network, by said slave upon receipt of the message (M2), the acknowledgment signal (ACK) to the master controller (MC).

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