Much like your car's seatbelt warning, it doesn't start beeping at you until your vehicle is in motion. This is because the threat of an accident is much lower when your vehicle is stopped.
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With an Alert Trigger, we can achieve much the same result by connecting an appropriate signal to the Blindsight Processing Unit. The input will serve to enable or disable alerts for the operator.
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This is a very powerful feature that helps ensure Blindsight detections are ones that the operator needs to know about. Additionally, the events generated in the timeline allow us to calculate how many hours the machine would be considered "dangerous", also known as the machines "Danger Hours".
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The machines total "Danger Hours" are used to calculate "The Blindsight Index".

During the initial risk assessment of the vehicle, it will be clear if there is a particular direction or mode the vehicle needs to be in for it to present a danger to others on site.
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For example, you're operating a vehicle with poor rear visibility and both Blindsight sensors have been installed to help ensure the vehicle is not reversed into people or vehicles, then Blindsight should only alert you when the vehicle is traveling in reverse. By connecting Blindsight to the reverse signal from the vehicle, you can enable alerts only when the vehicle is in reverse.

The Alert Trigger's input configuration is completed via the web console. This includes enabling the feature as well as setting disable requirement. As the input accepts a system voltage input, it is up you to decide if that input enables or disables the alerts.

The Alert Trigger can be found by navigating to the BPU tab >>> then clicking "Manage" on the device you wish to configure. Screenshot below:

See exactly when the vehicle was put in reverse with the "BPU Detections Enabled" & "BPU Detections Disabled" events types. Screenshots below:

For technical implementation, here's a link to our wiring diagram.

Bulldozer
Both sensors are facing the rear danger zone. We recommend the Alert Trigger is configured to alert the operator only when vehicle is in reverse.
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​Danger Hours = number of hours that the operator had the vehicle in reverse and the vehicle is dangerous.

Excavator
Both sensors are facing the rear and right side. We recommend the Alert Trigger is configured to alert the operator only when the hydraulics/pilot lock has been activated.
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​Danger Hours = number of hours that the operator activated the hydraulics and the machine is dangerous.
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