Sensice ice detectors Dr Ulf Elman, President Sensice
Traffic accidents in Sweden : Sensice at snowy or icy road surface conditions, of these did occur during black ice conditions, and in addition did 572 accidents related to aquaplaning occur
Fixed applications Roadside mounting Sensice
Fixed applications Icing alert at building entrances Sensice
Fixed applications Ice detection at airports Sensice
Fixed applications Ice sheet or icicle buildup at sensitive spots Sensice
In-car mounting Detection range: 50m Sensice
In-car mounting Continuous detection with a response time of 0.1 s Sensice
In-car mounting Insensitive to ambient light and works in darkness Sensice
In-car mounting Several interface options: Sensice Display integrated with detector Separate display unit FlexRay, CAN-bus, Ethernet, USB, RS232 or RS485
In-car mounting Placing the detector head: Sensice Integrated display and detector head behind windscreen Separate detector head at front of vehicle
General properties Uses infrared spectroscopy Sensice
General properties Principles of spectroscopy Sensice Ice transparent to visible light Ice is reflective (metal like) in the MIR range Ice is distinctly coloured in the NIR range
General properties Four state system Sensice Dry 2. Wet 3. Ice 4. Mix of ice and water
General properties Six state system Sensice Wet 1. Dry 3. Clear ice 4. Snow 5. Sleet 6. Wet clear ice
General properties Six state system Sensice Ice and water ratio Ice and water thickness Accepts larger layer thickness range
Failure rate Sensice Unable to separate water/ice on windscreen or in the air from water/ice on road surface Intrinsic failure rate External error sources Staring system, detection area may leave road surface Objects in line of sight, such as wipers or other cars, may interfer with detection
Synergy effects Sensice Does not interfer with infrared night vision system and may share some optics with it May beneficially use rain sensor data If mounted behind windscreen it may use wiper control system data Cooperates advantageously with adaptive headlights
Decreasing size and weight Sensice Present volume 2.8 l, weight 2.7 kg Next version volume 1.0 l, weight 0.5 kg Ultimate size limit set by aperture sizes, may be made far smaller and much more lightweight
Sensices unique detectors Excessively expensive systems for ice detection have been around for decades Sensice Sensices ice detectors are unique in that they are produceable at cost levels acceptable to consumers
Company facts, Sensice Sensice Founded 2004 First order september 2005 (Volvo, LuTH) Two patents granted, further patents pending
Thank you Sensice Further information: Inquiries: