Product | ADAS & DMS

Event Triggers

What are event triggers?

What are trigger thresholds?

An event trigger is a decision rule that defines the conditions in which an event should be generated. Smarter AI supports a wide range of event triggers related to ADAS and DMS.

Trigger thresholds are the values that control the sensitivity of the trigger and can be adjusted to meet specific customer requirements. For example, consider the trigger threshold for detecting tailgating. This threshold could be set to determine the minimum distance or time gap between vehicles that constitutes tailgating.

For a fleet of light-duty trucks, a shorter following distance might be acceptable, thus requiring a higher threshold for tailgating detection. Conversely, for a fleet of heavy-duty trucks, a longer following distance is typically needed for safe operation, so a lower threshold would be applied to detect tailgating sooner. This customization ensures that the trigger thresholds are tailored to the operational characteristics of different types of vehicles.

What are pre/post event buffers?

The pre-buffer is the time (in seconds) before a trigger generates an event, which defines the event recording's start time. The post-buffer is the time (in seconds) after the trigger generates an event, which defines the event recording's end time. Both parameters control the total length of the event recording.

Smarter AI triggers and thresholds

Smarter AI supports a wide range of ADAS and DMS triggers that can be deployed to your Smarter AI cameras with the ability to modify thresholds. Below is a list of all triggers that Smarter AI supports along with their default thresholds.

Smarter AI Event Triggers
Category Trigger Name Description Configurable Parameters Default (Metric) Default (Imperial) Audible Alert
ADAS Collision A vehicle collides with another vehicle or object,
resulting in impact and potential damage. 		None N/A N/A Collision.
Defensive Driving Reducing speed to maintain a safe following distance when another vehicle merges ahead
at an unsafe following distance. 		Speed
Time to Collision 		30 to 90 km/h : 1 s
90 to 120 km/h : 0.75 s
≥ 120 km/h : 0.5 s 		18 to 56 mph : 1 s
56 to 75 mph : 0.75 s
≥ 75 mph : 0.5 s 		Safe Driving.
Lane Straddling Driving a vehicle over 2 lanes,
which can disrupt traffic flow and lead to collisions. 		Duration 5 s 5 s Keep inside the lane.
Near Collision A vehicle comes dangerously close to a collision,
but avoids it through sudden braking or maneuvers. 		None N/A N/A Near Collision.
Rolling Stop Failing to come to a complete stop
at a stop sign or red light,
instead rolling through the intersection. 		Speed 3.6 km/h 2.2 mph Rolling Stop.
Solid Lane Violation The vehicle crosses a solid lane Speed
Duration 		40 km/h
3 s		 25 mph
3 s		 Solid Lane Violation.
Speeding Exceeding the posted speed limit,
increasing the risk of a collision. 		Tolerance 8 km/h 5 mph Speeding.
Tailgating Following another vehicle too closely,
reducing stopping distance
and increasing the risk of collision. 		Speed
Time to Collision 		30 to 60 km/h : 1 s
60 to 90 km/h : 1.25 s
≥ 90 km/h : 1.5 s 		18 to 37 mph : 1 s
37 to 56 mph : 1.25 s
≥ 56 mph : 1.5 s 		Tailgating.
DMS Distraction A driver’s attention is diverted,
increasing the risk of a collision. 		Duration 6 s 6 s Eyes on the road.
Drinking A driver is detected consuming a beverage,
potentially impairing their control. 		Duration
Vehicle Speed 		5 s
20 km/h		 5 s
12.5 mph		 Hands on the wheel.
No Seatbelt A driver or passenger is not wearing a seatbelt,
violating safety regulations. 		Speed 20 km/h 12.5 mph Fasten your seatbelt.
Passenger Disallowed The number of passengers in a vehicle exceeds a permitted limit. Number of Passengers 3 passengers 3 passengers No additional passengers allowed.
Phone Usage A driver is detected using a phone,
posing a safety risk. 		Duration 5 s 5 s Put your phone down.
Smoking A driver is detected smoking while driving,
which can lead to distractions. 		None N/A N/A Smoking.
Telematics Harsh Acceleration A rapid increase in vehicle speed,
indicating aggressive driving. 		G force 0.4 G 0.4 G Harsh acceleration.
Harsh Braking A sudden increase in braking force,
indicating an emergency stop or aggressive driving. 		G force 0.6 G 0.6 G Harsh Braking.
Harsh Cornering A fast, sharp turn,
indicating cornering at an unsafe speed. 		G force 0.5 G 0.5 G Harsh Cornering.

FAQs

  • There are 4 combinations to choose from:

    Snapshot and Video: Records a snapshot and a video.

    Snapshot: Records a snapshot..

    Video: Records a video.

    None: Does not record a snapshot or a video.

  • A chime is a sound produced by the camera when it triggers an event.

    A trigger may also include voice coaching, which provides verbal instructions or feedback when an event is triggered.

  • Cooldown is the minimum interval between 2 identical events. It can be adjusted in seconds or disabled.

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