This device uses Triangular Planar Array (TPA) technology to reliably detect the
presence of a vehicle in a wide variety of drive-thru applications including parking,
access control, car wash, banking and fast food. Unlike a vehicle loop detector
configuration that requires the installation of a loop in the pavement, the USVD-
4X may be simply mounted on a post or order box and aimed at the location of
the vehicle when in position to perform a transaction or place an order. Also,
unlike other technologies, the USVD-4X does not require any set up or functional
adjustments, other than simply installing and aiming. The USVD-4X greatly
reduces the cost associated with installation of vehicle detection capabilities
compared to loop detectors for these types of applications.
The USVD-4X requires 12-24VDC/VAC and provides a form “C” set or relay
contacts indicating vehicle presence.
Utilizing TPA technology, the detection head consists of 4 ultrasonic transducers
that connect to the internal microprocessor-based control board. The detection
head “scans” the expected location for a vehicle and activates its output upon
detection of a vehicle.