AIS have developed an extensive suite of applications – covering hardware and software – for infrastructure projects. A summary of these applications is provided below.
If you have any other control applications, please call us and one of our consultants will meet with you to discuss requirements and derive a scope of work.
Tunnels
Site Wide SCADA & Control
Supervisory monitoring & control for Operators, Maintenance & Management – fault tolerant & high availability
Fire Detection
Linear heat sensors for tunnel; Interface to fire alarm system for cross passages; VEASDA sensors for gas detection
Smoke Detection
Fixed CCTV systems with analysers for smoke detection;Links to linear heat for automatic fire response using coincidence of detection
Life Safety HMI
Integrating safety systems into a single user interface for emergency management & system control
Lighting Control
Supervisory control of intelligent LED lighting; direct control of luminaries; control of L20; Transition; Exit zones; Interface to tunnel luminance photometer
Generators & HV
Management of changeover / recovery between DNO supplies & Generators; Fault tolerant PLC control; Generator testing with loadbanks
Ventilation
Longitudinal & Transverse; Invert Purging; Metro systems; Full & back up modes; Link to signalling (rail) for emergency train ventilation
Pollution Monitoring
Detection of CO, NO2, Visibility; Link to tunnel ventilation for automatic pollution control
Pumping
Duty, Assist & Standby operation; Mechanical or ultrasonic level switches; Hydrocarbon detection & diversion of flow to interceptor tanks
Tunnel Operation Reports
KPI reports on alarms, equipment & road availability
CCTV
Automatic vehicle detection; stopped vehicles; pedestrians on roadway
Fire Suppression
Pumping station & release valve control for water mist or deluge systems
SIL 2 Approved Systems
BS EN 61508 & BS EN 50128 (Rail) compliant
Wayfinding Lights
Active signage during an incident that requires tunnel evacuation
Emergency Telephones
Voice Over IP
Training Simulators
Training for tunnel operators in normal & emergency modes
Bridges
Wind Speed & Direction
Measurements and displays via SCADA
Met Office link for wind speed & direction forecasts
Plotting actual vs forecast; Prediction of intervention measures / closures for high winds
Bridge Lighting & Signage Control
Bridge Structural Health Monitoring
Weather impact analysis; Accelerometers for vibration monitoring; Wind speed & direction monitoring; Rain meters; Tilt meters to measure deck movement
