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Device for transmitting data and control commands via radio connections in a distributed control system for one or more machines and/or processes

  • US 6,985,724 B2
  • Filed: 02/27/2001
  • Issued: 01/10/2006
  • Est. Priority Date: 03/31/2000
  • Status: Expired due to Term
First Claim
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1. A network having a plurality of nodes forming a distributed control system for a plurality of machines with pre-established communication connections between said nodes comprising:

  • a system for pre-establishing communications between a plurality of nodes by assigning unique transmit and receive time slots to said plurality of nodes and for placing other nodes in a receive only state;

    a radio transmitter and receiver at each node for receiving information from other nodes and transmitting information to other nodes via radio communications during transmit and receive time slots assigned to said node;

    a local clock; and

    a connection device connected to said local clock for enabling said transmitter and receiver during said time slots wherein each of said plurality of nodes is a transmitting node and transmits information to a pre-identified receiving node during a time said pre-identified node has a corresponding receive time slot, and receives information during a time slot in which another of said nodes is transmitting information, whereby communications are established between nodes needing information from other nodes, and said other nodes remain in a receive only state.

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