초록 ▼

A network for sensing, communicating and controlling where a plurality of cells communicate in the network through packets. A first cell transmits a sequence number and a retransmit flag with the messages. The messages are acknowledged by a second cell if the sequence number is different that the pr

A network for sensing, communicating and controlling where a plurality of cells communicate in the network through packets. A first cell transmits a sequence number and a retransmit flag with the messages. The messages are acknowledged by a second cell if the sequence number is different that the previously received sequence number. If the sequence number is the same, the second cell acknowledges the message only if the retransmit flag indicates the message is being retransmitted by the first cell. The second cell takes action on the message only if the sequence number is different than the previously received sequence number.

대표청구항 ▼

In a network for sensing, communicating and controlling where said network includes at least a first and a second media, an improvement comprising: a first plurality of cells coupled to said first media; a second plurality of cells coupled to said second media; a third cell coupled to both said firs

In a network for sensing, communicating and controlling where said network includes at least a first and a second media, an improvement comprising: a first plurality of cells coupled to said first media; a second plurality of cells coupled to said second media; a third cell coupled to both said first and second media; at last one of said first cells and one of said second cells having a common group identification number and being assigned a group function for said group, said group function being a common task for sensing, communicating and controlling carried out by said cells in said group identified by said common group identification number; said third cell having said common group identification number for repeating messages broadcast between said cells having said common group identification number; whereby sensing and control over a network having a plurality of media is achieved.