Point-to-Multipoint Polling in a Monitoring System for an Electric Power Distribution System
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United States of America Patent
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Issued Date -
Feb 5, 2015
app pub date -
Aug 1, 2013
filing date -
Aug 1, 2013
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Abstract
An automation controller may wirelessly poll a plurality of remote monitoring devices configured to monitor an electric power distribution system and store monitored system data collected therefrom. The automation controller may be wirelessly coupled to the plurality of remote monitoring devices using a spread-spectrum protocol, such as Bluetooth®. The automation controller may gather the monitored system data using the Distributed Network Protocol (DNP3). DNP3 packets may be communicated as the payload of Bluetooth® packets. The spread-spectrum protocol may limit the number of devices to which the automation controller may be actively connected at one time. Accordingly, the automation controller may couple and uncouple from the remote monitoring devices in a round-robin pattern to collect the monitored system data from all of the remote monitoring devices. The automation controller may provide engineering access and/or collect relay event data using the spread-spectrum protocol and a high-bandwidth protocol.
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