<b>Explanatory Modeling of Cross-Sensor Communication Breakdown in Heterogeneous Industrial IoT Networks for Air Quality Monitoring</b>

These systems are usually evaluated by how accurately their constituents measure. This article argues that their decisive failure mode is different and less well theorized cross-sensor communication breakdown, the process by which streams that individually remain valid cease to agree with one another.

Existing research addresses the detection and tolerance of faults : node failures, link failures, energy depletion, packet loss. That work has produced mature diagnostic taxonomies and fault-tolerant routing schemes, but detection is not explanation. We develop an explanatory framework that reconstitutes communication breakdown as a violation of an interaction contract : an exchange succeeds only when the receiver can reconstruct the time, place, uncertainty, and provenance of an observation, and fails whenever that reconstruction fails, whether or not the packet arrived.