Graph-based facility navigation using rf fingerprints

A system comprising:

• a memory storing processor-readable code;
• and
• at least one processor coupled to the memory, the at least one processor configured to execute the processor-readable instructions to cause the at least one processor to perform operations comprising:
• determining a plurality of radio frequency (RF) fingerprints at corresponding locations within a facility, the plurality of RF fingerprints indicating signal strengths from RF devices at the corresponding locations, the RF devices including electronic shelf labels (ESLs);
• determining a graph based on the plurality of RF fingerprints;
• receiving a current RF fingerprint for a user within the facility;
• determining, based on the current RF fingerprint, a current location of the user within the graph;
• determining a route to a target product by traversing the graph from the current location to a target location for the target product;
• and
• displaying the route to a user while navigating the facility to the target location.

A non-transitory computer-readable medium storing instructions that, when executed by a processor, cause the processor to perform operations comprising:

• determining a plurality of radio frequency (RF) fingerprints at corresponding locations within a facility, the plurality of RF fingerprints indicating signal strengths from RF devices at the corresponding locations, the RF devices including electronic shelf labels (ESLs);
• determining a graph based on the plurality of RF fingerprints;
• receiving a current RF fingerprint for a user within the facility;
• determining, based on the current RF fingerprint, a current location of the user within the graph;
• determining a route to a target product by traversing the graph from the current location to a target location for the target product;
• and
• displaying the route to a user while navigating the facility to the target location.

A guidance system comprising:

• a plurality of electronic shelf labels (ESLs);
• and
• a computing device configured to perform operations comprising:
• determining a plurality of radio frequency (RF) fingerprints at corresponding locations within a facility, the plurality of RF fingerprints indicating signal strengths from the plurality of ESLs;
• determining a graph based on the plurality of RF fingerprints;
• receiving a current RF fingerprint for a user within the facility;
• determining, based on the current RF fingerprint, a current location of the user within the graph;
• determining a route to a target product by traversing the graph from the current location to a target location for the target product;
• and
• displaying the route to a user while navigating the facility to the target location.