Occupant position tracking using imaging sensors

A system for locating an occupant within an area, the system comprising:

• a first sensor positioned in an area and at a first location relative to a reference point in the area, the first sensor including a first field of view;
• a second sensor positioned in the area and at a second position relative to the reference point, the second sensor including a second field of view, such that the second field of view overlaps the first field of view;
• a computing system in communication with the first sensor and the second sensor, wherein the computing system is configured to:
• determine a first distance from the first sensor to the occupant based on detection signals from the first sensor, wherein determining the first distance further includes determining a first azimuth angle between a reference axis and a line of sight from the first sensor to the occupant based on:
• a field of view of the first sensor;
• a field of view of a pixel in the first plurality of pixels of the first sensor;
• and
• a pixel number assigned to the pixel of the first plurality of pixels,
• determine a second distance from the second sensor to the occupant based on detection signals from the second sensor, and
• determine a coordinate position of the occupant relative to the reference point based on the determined first distance and the determined second distance.

A computer program product comprising one or more non-transitory machine readable mediums encoding a plurality of instructions that when executed by one or more processors cause a process to be carried out for determining a location of an occupant within an area, the process comprising:

• determining a first distance from the occupant to a first sensor based on a first thermal energy input received by the first sensor and a known location of the first sensor relative to a reference point within the area, wherein determining the first distance further includes determining a first azimuth angle between a reference axis and a line of sight from the first sensor to the occupant based on:
• a field of view of the first sensor;
• a field of view of a pixel in the first plurality of pixels of the first sensor;
• and
• a pixel number assigned to the pixel of the first plurality of pixels;
• determining a second distance from the occupant to a second sensor based on a second thermal energy input received by the second sensor and a known location of the second sensor relative to the reference point, the first and second sensors being located at different locations within the area;
• and
• determining a coordinate position of the occupant in the area relative to the reference point based on the determined first distance and the determined second distance.