Efficient firmware update in a narrow bandwidth system
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United States of America Patent
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Aug 2, 2016
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N/A
app pub date -
Mar 15, 2013
filing date -
May 4, 2012
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Abstract
An advanced metering infrastructure may be configured for automated meter reading, such as of utility (electric, natural gas, etc.) meters. Within a network, a data collector communicates with, and receives meter data from, a plurality of endpoints. Firmware on the endpoints may be updated by transmission, from the data collector, of a new firmware image. In one example, the data collector sends an announcement of a firmware update to the plurality of endpoints. At a time indicated by the announcement, the data collector multicasts the firmware update a plurality of times. The data collector then receives indications from a plurality of endpoints that did not successfully receive all blocks of the multicast firmware update. In response, the data collector sends missing blocks to the plurality of endpoints according to the indications.
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