V2 Alert Trigger
- J. Wills
- Daniel Smith (Unlicensed)
The BPU takes a voltage level input to enable and disable the system. This is a crucial connection as it allows Blindsight to only be active when the vehicle is dangerous. The connection depends on the vehicle and where the sensors are placed.
Example 1 - Front end loader
A typical installation on a loader has the sensors out the rear of the vehicle. Blindsight should only alert the operator when the vehicle is in reverse. The alert trigger has been connected to the reverse alarm. When the vehicle is in reverse, the alarm is on, hence we have chosen to enable detections on a “High” signal.
Example 2 - Excavator
A typical installation on an excavator has the sensors out the rear and right side of the vehicle. Blindsight should only alert the operator when the vehicle is able to move, including slewing motions. In this case the alert trigger has been connected to the safe to approach light, which is controlled by the isolator/pilot lock arm. When the operator is in the vehicle with the isolator arm down, the safe to approach light turns off and the alert trigger is enabled.
PWM Support
Some new vehicles have a pulsing signal being applied to some of their actuators, including the reverse alarm. To support this, there is a delay feature. A setting of “1” second is usually adequate but will be dependent on the particular vehicle.
