What triggers video events in Reveal

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Video recordings are uploaded to Reveal when unsafe driving behavior (such as hard braking) is detected by the vehicle tracker (in real time) and AI Dashcam (in real time).

When a video is recorded, the cloud AI analyzes the video by looking for objects near the vehicle (such as stop signs and road users) and by comparing the road speed with the speed of the vehicle.

When the cloud AI detects multiple events happening around the same time, its classification level is based on the most severe incident.

In this article:

How detection works
Events detected by the vehicle tracker
Videos not triggering?

How detection works

All vehicles are fitted with a vehicle tracker. Video users have cameras fitted to the vehicle. This is either an AI Dashcam or road-facing camera (model 2). The cloud AI interacts with all camera types.


	Vehicle tracker	Camera AI	Cloud AI
What type of AI does it use?	None	Camera AI	Cloud AI
Where is it?	One the tracker	On the AI Dashcam	On a remote server
What does it do?	The tracker triggers a harsh driving event based solely on factors such as speed and g-force.	Camera AI constantly monitors driving behavior, provides immediate feedback to drivers and triggers videos to be uploaded to Reveal.	The cloud AI, also known as the video analytics engine, analyzes the severity of an event after it has happened. At this time, it also recognizes incidents such as Tailgating.
When does it run?	After the harsh driving event.	In real-time. It runs constantly, when the vehicle is on, to monitor driving behavior.	After the event. It analyzes videos moments after it receives them from the camera.
What events can it detect?	Hard braking Hard acceleration Harsh cornering Sudden force Skip to details	Road-facing: Tailgating Pedestrian ahead Driver-facing: Tiredness Distraction Smoking Phone call detection	Road-facing: Tailgating Rolling stop Posted speed exceeded Driver-facing: Phone distraction Seat belt unfastened
How does it affect classification?	Generates events	Generates events	Classifies events
How do I learn more?	Harsh driving incident report Vehicle tracker models	What triggers videos and in-cab alerts Update video triggers and in-cab alerts Dual-facing AI Dashcam Road-facing AI Dashcam	How videos are classified Camera models

Events detected by the vehicle tracker

The following unsafe driving behaviors are detected by the vehicle tracker:

Hard acceleration
- The vehicle speeds up suddenly (by more than 5 mph (8 km/h) per second).
- The g-force is above 0.220g for at least 1 second.
Harsh cornering
- The vehicle makes a harsh turn at speed.
- The g-force is above 0.4g for at least 2 seconds.
Hard braking
- The vehicle slows down suddenly (speed decreased by more than 6 mph (9.5 km/h) per second).
- The g-force is above 0.265g for at least 1 second.
Sudden force
- The vehicle jolts suddenly (caused by impact with a person, animal, or object, for example).
- The g-force is above 0.7g for 0.1 second.
- Sudden force is only detected by certain device models. Contact Support to find out whether your device can detect it.

Videos not triggering?

If videos are not appearing in the Video List, check whether a camera is working.