Storage quality depends on more than a single temperature reading. Reliable monitoring requires sensor state, zone context, alarm ownership, power and equipment conditions, and an audit trail that explains what happened and how the team responded.
Operational problem
Cold rooms, warehouses and transport staging areas may use disconnected loggers, building systems and refrigeration controls. The result is fragmented visibility and delayed investigation when an excursion occurs.
Signals and systems
The core pattern includes temperature and humidity by zone, door state, compressor or evaporator status, power availability and optional product-probe channels. BACnet, Modbus, MQTT and OPC UA can be used depending on the existing equipment.
- Environmental sensors and probes
- Building or refrigeration controllers
- Door and occupancy signals
- Power and equipment-status channels
Delfers architecture
SensX Edge continues collecting and buffering during network disruption. SensX Boundary presents site and zone status, excursions, owned alarms and reports. SensX Foundry governs thresholds, delays, escalation rules and commissioning state.
Human workflow
An excursion is assigned to a responsible team with an SLA. The workflow records acknowledgement, investigation, corrective action and closure evidence. Sensor failure and stale data remain separate from genuine environmental excursions.
Expected capability and evidence boundary
The design can support continuous condition visibility, faster alarm ownership and a clearer audit trail. Product-loss avoidance, compliance outcomes and response-time improvement must be verified at the deployed site.
Standards and primary sources used for context.
These links provide technical context. Their inclusion does not claim product certification or compliance unless explicitly stated elsewhere.
- BACnet and ASHRAE Standard 135ASHRAEOfficial resources for the building automation and control network protocol.
- OPC UA specificationsOPC FoundationOfficial published OPC UA specifications and companion information models.
- 21 CFR Part 11 electronic records and signaturesElectronic Code of Federal RegulationsCriteria for trustworthy electronic records, electronic signatures and related controls.
