System and method for backing up distributed controllers in a data network
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United States of America Patent
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Apr 20, 2004
Grant Date -
N/A
app pub date -
Feb 28, 2001
filing date -
Feb 28, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system and method for the rapid configuration and connection of a backup controller in a distributed data network such as an automated fuel distribution network. Each service-station site in the network has a site controller that supervises operations of the site components, such as the fuel dispenser and credit-card reader, communicating with them through an on-site router, or hub. The fuel-distribution site also communicates with the central network controller through the same hub. In the event of a site-controller outage, one of several spare controllers, usually co-located with the network controller, is loaded and configured to function as the site controller. It is then placed in communication with the site components via a data-network connection, such as through the Internet. The hub switches communications protocols from serial data to packets suitable for Internet communications.
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