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Method for determining a connection order of nodes on a powered audio bus

  • US 9,913,034 B2
  • Filed: 09/06/2016
  • Issued: 03/06/2018
  • Est. Priority Date: 09/04/2015
  • Status: Expired due to Fees
First Claim
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1. A method for determining a connection order of at least two nodes on a powered audio bus, the method comprising the steps of:

  • providing a powered audio bus;

    providing nodes connected to said powered audio bus, each of the nodes comprising;

    a node processing unit and a node memory, the node memory being arranged to store at least a node identifier;

    a node receiver and a node transmitter arranged to receive and transmit communication on said powered audio bus;

    a bus power monitoring unit;

    a utility unit arranged to provide a utility function of said node, the utility unit of at least one of the nodes comprising at least one loudspeaker and at least one amplifier arranged to drive said loudspeaker based on control information and audio information received from said powered audio bus by said node receiver; and

    a power converter arranged to convert power from said powered audio bus to supply power to at least partly the node processing unit, the node receiver, the node transmitter and the utility unit;

    providing a bus driver connected to said powered audio bus at a bus driver portion of said powered audio bus, the bus driver being arranged to feed control information and audio information into the powered audio bus, the bus driver comprising a driver processing unit and a driver memory, the driver memory being arranged to store at least said node identifiers for said nodes;

    providing a bus power supply connected to said powered audio bus at said bus driver portion of said powered audio bus, the bus power supply being arranged to feed power into the powered audio bus;

    arranging for a subset of the nodes to draw power from said bus power supply via said powered audio bus;

    using said bus power monitoring units of said subset to determine a farthest node as one node of said subset which is connected to said powered audio bus farther away from said bus driver than any other node of said subset;

    using said node transmitter and node receiver of said determined farthest node to communicate a node identifier with said bus driver so that a node identifier for said determined farthest node is stored in said node memory and said controller memory.

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