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METHOD AND APPARATUS FOR ENERGY-OPTIMIZED DATA TRANSMISSION USING THE OPC UA PROTOCOL IN RADIO NETWORKS

  • US 20160073443A1
  • Filed: 09/09/2015
  • Published: 03/10/2016
  • Est. Priority Date: 09/10/2014
  • Status: Active Grant
First Claim
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1. A method for communication between at least one client and at least one server in a client/server system using an OPC UA communication protocol and having a Keep Alive mechanism that ends a data connection between a server and a client when no data packets are transmitted during a given Keep Alive time period, said client/server system permitting only requests from the at least one client and only responses to requests from the at least one server, said method comprising the steps of:

  • receiving an initial trigger message sent from the at least one server to the at least one client device after the end of the Keep Alive time period, andinitiating the transmission of an OPC UA request by the at least one client to the at least one server in response to the initial trigger message received from the server by the client after the data connection between the OPC UA server and the OPC UA client is ended, so that communication between the server and the OPC UA client is initiated by the server after the Keep Alive mechanism ends the data connection between them.

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