Surfaced detection system for airports

A system for monitoring the position and identity of an object located within a scanning region, comprising:

• a machine readable code positioned upon and uniquely identifying said object;
• a first optical scanner located adjacent said scanning region and having a scanning beam extent substantially encompassing said scanning region for deriving first scan signals corresponding with said machine readable code and the azimuth of said object with respect to said first optical scanner;
• a second optical scanner spaced a predetermined distance from said first optical scanner, located adjacent said scanning region and having a scanning beam extent substantially encompassing said scanning region for deriving second scan signals corresponding with said machine readable code and the azimuth of said object with respect to said second optical scanner;
• readout means responsive to a data signal input for displaying information related to the position and identification of said object;
• a memory retaining accessible identifying data corresponding with said code;
• and
• control means responsive to said first and second scan signals and said predetermined distance for accessing said memory for said identifying data, for deriving the position of said object with respect to said first and second optical scanners, and for deriving said data signal input in correspondence therewith.