Synthetic Sensors: Towards General-Purpose Sensing
summary
A single wall‑powered board combines nine physical sensors (vibration, microphone, EMI, thermal, pressure, light, color, magnetic, radio) and performs on‑board feature extraction, sends encrypted features to a cloud ensemble of SVMs, and virtualizes outputs as 38 synthetic sensors. It runs across five rooms for two weeks, showing stable signals and achieving 96% average accuracy (98% when retested a week later), and supports second‑order counts and state machines.
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