Sensor Data Is Not the Same as Truth
Explain why IoT sensor readings need freshness, range, calibration, and confidence checks before decisions use them.
The number is only useful when you know whether the sensor deserved your trust. The teach Sensors can fail quietly. They can drift, lose sensitivity, move, report late, report with poor precision, or be installed in a place that measures the wrong condition. NIST calls out these practical properties because IoT systems are distributed physical systems, not just databases with neat rows. The trust wrapper A professional telemetry packet carries the value plus context: who produced it, when it was observed, where it was installed, how fresh it is, what range is plausible, and whether the device is healthy enough…
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