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Energy efficient method for communication between a wireless sensor network and an industrial control system

  • US 9,750,083 B2
  • Filed: 12/04/2012
  • Issued: 08/29/2017
  • Est. Priority Date: 06/11/2010
  • Status: Active Grant
First Claim
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1. A method for communication between a device node of a wireless sensor network and control equipment of an industrial control system, said network comprising a plurality of said device nodes and a gateway, said method comprisingreceiving a data packet from a said device node of said network, said data packet including at least one encrypted part,examining said received data packet received at the gateway from a said device node in said network and checking for presence of at least one indicator for data packet aggregation indicating an aggregated data packet,reconstructing, on finding at least one data packet aggregation indicator, a first data packet included in the aggregated data packet bya) retrieving a source address of the first data packet, and retrieving a decryption key associated with the source address,b) extracting data from the first data packet, and decrypting using said decryption key one or more encrypted data parts of the first data packet, andtransmitting the reconstructed first data packet to the industrial control system.

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