Service providing device, alternative service providing device, relaying device, service providing system, and service providing method
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United States of America Patent
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Oct 20, 2020
Grant Date -
Nov 2, 2017
app pub date -
Apr 26, 2017
filing date -
Apr 28, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A service providing device included in a process control system in a plant, the service providing device includes a communicator configured to perform communication via a network, a service provider configured to provides a service via the communicator by exclusively assigning first identification information to one of the service providing device and an alternative service providing device, the first identification information being common to the alternative service providing device which provides the service instead of the service providing device, and a heartbeat transmitter configured to transmit heartbeat information for notifying that the service is normal to the alternative service providing device via a relaying device by using second identification information which is different from the first identification information.
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