Synergy Automatics · Industrial IoT
Temperature & Humidity Monitoring
Map heat and moisture conditions underground to support heat-stress management, ventilation planning and equipment reliability.
What this connected-mine application does
Map heat and moisture conditions underground to support heat-stress management, ventilation planning and equipment reliability.
The practical objective is not simply to collect more data. It is to establish a trustworthy measurement chain, detect abnormal conditions, preserve the relevant operating context and route information to the team that can act on it.
- Dry-bulb temperature
- Relative humidity
- Calculated heat-index or site-approved heat-stress indicator
- Air velocity
- Equipment enclosure temperature
- Trend and duration above action level
| Primary field devices | Industrial temperature/humidity transmitters; Air-velocity sensors; Wearable or portable environmental nodes; Gateway or mesh repeater; Dashboard heat map |
|---|---|
| Data update pattern | Event-driven alarms with periodic telemetry. Critical events should be timestamped and transmitted immediately where the communications design permits. |
| Connectivity options | Industrial Ethernet, fibre, Wi-Fi, leaky-feeder, LoRaWAN or private LTE/5G as site conditions permit. |
| Alarm and analytics | Notify responsible personnel when site-approved heat or humidity action levels persist or sensors fail. |
| Common integration | Common interfaces include dry contacts, 4–20 mA, Modbus RTU/TCP, OPC UA, EtherNet/IP, CAN/J1939, MQTT, SNMP or REST APIs where supported by the source equipment. |
| Data continuity | Timestamp at the edge, monitor signal quality and device health, and use store-and-forward buffering so short network outages do not create silent data gaps. |
| Environmental design | Use mine-suitable enclosures, protected cabling and glands, appropriate ingress/impact resistance, and certified equipment wherever the hazardous-area classification requires it. |
A five-layer implementation pattern
Measure
Approved sensors and machine interfaces capture the required physical or operating state.
Control locally
Existing PLCs, protection and safety systems retain their required local authority.
Acquire at edge
A rugged gateway timestamps, buffers, normalises and validates incoming data.
Transmit securely
Mine communications carry telemetry and alarms with health and quality monitoring.
Visualise and integrate
Dashboards, historians and APIs support response, maintenance and reporting.
Where the solution can be applied
- Deep workings
- Poorly ventilated headings
- Workshops and pump chambers
- Refuge chambers and electrical rooms
Potential benefits
- Identification of heat-stress zones
- Better work-rest and ventilation decisions
- Protection of sensitive electrical equipment
- Historical seasonal and depth trends
- Remote verification of refuge conditions
Design details that determine success
- Use the mine-approved occupational heat-stress method
- Shield probes from radiant heat and direct water
- Consider sensor response time and condensation
- Include manual verification and worker feedback
Notify responsible personnel when site-approved heat or humidity action levels persist or sensors fail. Dashboard alerts, remote notifications and analytics should complement—not replace—certified protection, local interlocks, emergency procedures, statutory inspections and competent decision-making.
Continue exploring the connected mine
Implementation questions
Can Temperature & Humidity Monitoring connect to existing PLC, SCADA or mine systems?
Usually, yes. The preferred approach is to reuse approved source data and add isolated field instrumentation only where required. The final interface depends on available protocols, network segregation, data ownership and the source equipment vendor.
Does the IoT layer replace local protection or safety controls?
No. Protection relays, safety PLCs, emergency stops, gas trips, fire systems and other approved local functions remain the primary safety and control layer. IoT adds visibility, history, notifications and decision support.
What happens when underground communications are interrupted?
Critical local functions continue independently. A suitable edge gateway buffers timestamped data, raises a communications-health alarm and forwards retained records after the connection returns.
How are sensors and alarm levels selected?
Selection starts with the mine risk assessment, required decision, environmental classification, measuring range, response time, maintainability and applicable rules. Alarm and trip levels must be approved for the specific site and jurisdiction.
Discuss Temperature & Humidity Monitoring
Discuss field instrumentation, edge connectivity, dashboards and integration with the Synergy Automatics team.
Engineering note: Instrument selection, hazardous-area certification, alarm limits, interlocks and network architecture must be validated against the mine risk assessment, applicable legislation, equipment approvals and site operating procedures.