July 2017
Beginner to intermediate
378 pages
10h 26m
English
Content preview from Analytics for the Internet of Things (IoT)
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Tips for analytics
Make sure the time the device records the data is tracked along with the time the data is received. You can monitor delivery times to diagnose issues and keep a close eye on information lag times. For example, if you notice the delivery time steadily increases just before you get a data loss, it is probably something in the networking and not the device that is causing the issue.
Since MQTT enables subscribers and publishers to be offline if necessary, the time the message is received could be very different from when it was originated. This can affect the predictive modeling accuracy if the time received becomes significantly distant from when the event being analyzed actually occurred. If connections are persistent, this ...
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