What triggers video events in Reveal

Video recordings are uploaded to Reveal when unsafe driving behaviour (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 analyses 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 device type
Events detected by the vehicle tracker
Events detected by the cloud AI
Events detected by the camera AI
How to identify the device installed in a vehicle
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.

Table 2.

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

Events detected by device type

Events detected by the vehicle tracker

The following unsafe driving behaviours 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.

Events detected by the cloud AI

How the cloud AI detects events.

Events detected by the camera AI

What triggers videos and in-cab alerts.

How to identify the device installed in a vehicle

All vehicles are fitted with a vehicle tracker by default. Go to Admin > Camera List to see which camera models are installed in your fleet.

Videos not triggering?

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