Why it matters
Without this system, unidentified CO can contaminate breathing air, triggering regulator free-flows, nausea, or worse, and insurance claims can arise from unsafe air events.
From design to safety
Design
AI-guided site and sensor layout
The design maps intake position, wind direction, exhaust routing, and alarms to decide optimal sensor placement and pipe routing for clean air ingress. It specifies CO monitor spacing, air filtration adequacy, redundancy paths, and failure mode documentation for redress.
- compressor intake filter
- intake pipe
- wind direction sensor
Build
Systems integration and calibration
During build, data wiring, CO monitor installation, alarm integration, and wind sensors are configured to ensure reliable cross-communication and signal integrity. It includes calibration jig setup, labeling scheme, and QA test plans with pass criteria.
- CO monitor module
- engine exhaust outlet
Operation
Real-time monitoring and alerting
In operation, AI analyzes CO levels, flow rates, exhaust pressure, and alarm status to trigger audible/visual alarms and advisory actions. It logs events, updates dashboards, and escalates to the supervisor when thresholds are exceeded.
- CO monitor module
- engine exhaust outlet
- audible alarm horn
Maintenance
Diagnostics and calibration routines
Maintenance runs include sensor drift checks, CO monitor calibration, intake filter inspection, and pipe integrity tests to sustain accuracy. It enforces cadence, documents results, and schedules corrective actions.
- compressor intake filter
- intake pipe
- wind direction sensor
Safety
Emergency action and compliance
Safety uses AI to enforce EAP steps, record incidents, and verify oxygen kit readiness and regulatory documentation. It requires sign-off on changes by the Safety Officer and maintains audit-ready records.
- audible alarm horn
- CO monitor module
Part by part
- 1
compressor intake filter
- Watch for
- unexpected degradation of filter media, blockage signs, reduced airflow
- AI action
- analyze airflow metrics and flag clog trends for replacement or cleaning, trigger maintenance work order with priority code
- 2
intake pipe
- Watch for
- corrosion, leaks, or joint loosening at pipe connections
- AI action
- detect pressure drops and seal integrity issues, trigger inspection order, log location and action taken
- 3
CO monitor module
- Watch for
- sensor drift, false readings, or sensor outage
- AI action
- initiate recalibration or sensor replacement, alert technician, attach calibration certificate and last calibration date
- 4
engine exhaust outlet
- Watch for
- backdraft, heat buildup, or improper routing
- AI action
- alert for routing correction or venting optimization, record routing change and expected impact on intake quality
- 5
wind direction sensor
- Watch for
- unexpected wind shifts affecting intake exposure
- AI action
- adjust intake position recommendations and warn crew, save wind history for trend analysis
- 6
audible alarm horn
- Watch for
- alarm failure, delay, or masking by ambient noise
- AI action
- activate backup alarm or escalate to supervisor notification, log alert integrity check
Worked example
Catching a CO spike at intake
Illustrative scenario with sample data.
A mid-size operation with 4 boats monitors air intake during busy charter. An unexpected wind shift concentrates exhaust near the intake during a lunch hour.
Signal in
co_ppm: 15, threshold: 5, wind_direction: NW, intake_airflow: 1200 L/min, sensor_status: OK, timestamp: 2026-11-08T12:15Z
System out
ALERT: CO spike detected. Action: increase intake velocity, switch to alternative intake, log incident, notify safety officer; maintenance advised after dive window.
Human sign-off: Dive centre safety officer reviews the alert, confirms ventilation adjustment is implemented, and approves a post-event inspection and sensor calibration.
How to roll it out
Phase 1
Weeks 1 to 4
Baseline sensors and alarms installed, cross-checked with airflow patterns and wind data.
Phase 2
Weeks 5 to 8
Fine-tune thresholds, calibrate CO monitor modules, and implement routine AI-driven checks.
Phase 3
Weeks 9 to 12
Formalize maintenance cadence, incident reporting, and EAP integration into daily operations.
Where people stay in charge
- All CO-related decisions must be approved by the Safety Officer or designated supervisor prior to action.
- Sensor calibrations and alarm thresholds may only be adjusted after a validated test and sign-off from the cylinder testing/maintenance team.
- Emergency actions must follow the published Emergency Action Plan and regulatory requirements, with documented sign-off by the dive operations manager.
Questions owners and crews ask
What signals trigger the CO monitoring system to act?
The system reacts to CO concentration rise, airflow anomalies, wind direction changes, and sensor status shifts, prompting alarms, ventilation adjustments, and maintenance alerts.
Who signs off on CO monitor calibration and alarm threshold changes?
The Safety Officer signs off calibration and threshold changes after a validated test and technician verification.
How does the system handle a false CO alarm?
The AI rechecks sensor readings, cross-validates with airflow data, and can trigger a controlled re-test before escalating to personnel.
What records are kept for compliance and insurance?
Event logs, sensor calibration records, maintenance actions, and EAP sign-offs are stored for audit and insurance review.