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Measuring How Fast Your IIoT Queries Are Degrading (opens on the source site)
Stop waiting for the dashboard to get slow. Record latency against row count, fit the curve, and get a date when your query breaches its target.
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Continuous Aggregate Refresh Policies for Solar and Wind SCADA Data: Choosing the Right Policy Shape (opens on the source site)
Five refresh policy shapes for solar and wind SCADA: frequent, daily, hierarchical, retention-aware, and manual. Pick the one that fits each job.
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Normalizing a Wide Well and Pipeline Telemetry Table Without Re-Ingesting History (opens on the source site)
Reshape a wide oilfield SCADA table into a narrow hypertable plus tag metadata, in place, with dashboards running and history left where it is.
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Sizing Your IIoT Table Before You Deploy (opens on the source site)
A 20-byte sensor reading costs 95.6 on disk. Measure bytes per row, project 631 billion rows, and test your ingest ceiling before the schema review.
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RFC 9880 and the IoT Validation Problem (opens on the source site)
The IoT/IIoT world has a data model problem and the concept of Digital Twin has made this issue more important. Plenty of people have tried to fix it. RFC 9880 and its Semantic Definition Format (SDF) are a serious attempt: a JSON-based, ecosystem-neutral way to describe what a device is and what it does. I have had some experiences with this specification, and I’ve understood that the format shows its full value once you treat it as source code, something you compile.
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How I Built Monitoring for My Home Solar System — And Why You Might Need It Too (opens on the source site)
Svitgrid dashboard: real-time power flow from PV to battery, home, and grid A few months into living with my home solar installation, I realized the apps shipped by inverter manufacturers were, to put it politely, unloved. Menus that read like Modbus register dumps. Graphs that took ten seconds to load. No clean way to share access with my family without handing out a password. So I started building my own — and that side project turned into Svitgrid, a solar monitoring platform that now ships on iOS, Android, and the web. This post is the story of how Svitgrid came together, the…
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India’s First Instant Print Store (opens on the source site)
Leveraging IoT to deliver printouts to your doorstepSetting up our Printout Delivery Store has been highly satisfying. At one end is the joy of customers discovering an easy, home-delivered solution for last-minute printouts. But even more enjoyable is the knowledge that we created a nationwide service with only a Raspberry Pi and a seamless print flow that effectively harnesses the power of our instant delivery.But we did face some challenges along the way. Post-launch, our customers started experiencing many consistency issues, which had to be fixed before we could scale this service. These…
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