Sensor-Guard

SensorGuard is a fault detection and diagnostics (FDD) platform for HVAC and building automation systems. It scans BAS trend data for contradictions between signal pairs — command vs. position, supply temperature vs. setpoint, airflow vs. demand — and returns a ranked fault report with root cause isolated from cascade effects. Unlike rule-based AFDD tools that fire threshold alarms, SensorGuard flags structural contradictions in the data. When a cooling valve is commanded to 92% but position reads 5%, that is not a threshold violation — it is a decoupled actuator. SensorGuard identifies the pattern, estimates the energy waste, and explains what likely failed and when the pattern started. Key capabilities:

Stuck valve and damper actuator detection Sensor drift and bias identification Supply air temperature deviation analysis Root cause vs. cascade fault separation Cost impact estimate per fault Fault lifecycle management — acknowledge, investigate, resolve Auto-generated PDF reports for stakeholders Works with CSV exports from any BAS vendor — Trane, Honeywell, JCI, Siemens, Schneider Live BACnet/IP monitoring on Professional plan

No hardware required. Upload a CSV trend export and get a fault report in minutes. No training period, no model tuning, no opaque anomaly scores — every alert includes the exact contradiction that triggered it. Designed for facility managers, building engineers, energy managers, and BAS contractors who need actionable diagnostics, not more noise. 14-day free trial. No credit card required.