Reverse-beacon indoor positioning system using existing detection fields

A method for locating a reverse-beacon in a detection field comprising:

• providing a reverse-beacon comprising a transceiver and a computer in communication with said transceiver;
• providing a plurality of system nodes deployed to form a detection field;
• moving said reverse-beacon into said detection field;
• receiving at said reverse-beacon, first system node signals from a first system node in said plurality of system nodes at said transceiver;
• receiving at said reverse-beacon, second system node signals from a second system node in said plurality of system nodes at said transceiver;
• receiving at said reverse-beacon, third system node signals from a third system node in said plurality of system nodes at said transceiver;
• converting at said computer said first system node signals, said second system node signals, and said third system node signals to a historical dataset comprising:
• a first system node identifier and a first system node distance associated with said first system node;
• and
• a second system node identifier and a second system node distance associated with said second system node;
• a third system node identifier and a third system node distance associated with said third system node;
• repeating said receiving first system node signals, said receiving second system node signals, said receiving third system node signals, and said converting a plurality of times to form a plurality of said historical datasets;
• determining at said computer a location of said reverse-beacon relative to said detection field, based upon comparing each of said historical datasets in said plurality of historical datasets to calculate a location of said reverse-beacon within said detection field.