When checking out, the security guard scans the barcode
card getting from the driver to get the id-number. The system
will load all of the information in database which match
with this id-number, e.g., the driver’s face, license plate images,
license plate letters, and timestamp. At that time, the
security guard can manually compare these in/out images
(loading from database and from the current cameras) while
the IPSS automatically recognizes the license plate and compares
with the information retrieved from database. If these
information are not matched, the system will raise the beep
as well as a warning message.