Patent ID: 11892563
Assignee: PROJECT CANARY, PBC
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 12:
13. A system for detecting human presence in an outdoor monitored site, the system comprising:
at least three transmitters for transmitting radio signals;
at least three receivers for receiving radio signals;
wherein each of the at least three transmitters is configured to receive radio signals transmitted by each of the at least three receivers; and

a human presence detecting device comprising:
a processor; and
a memory storing a plurality of processor-executable instructions which, upon execution by the processor, cause the processor to:
extract, by a first machine learning network, channel state information data from the radio signals, wherein the channel state information data comprises:
phase values; and
amplitude values;

convert, by the first machine learning network, the channel state information data into an image representation map, by performing domain translation of the channel state information data using a two-branch encoder-decoder network; and
generate, by a second machine learning network, a surface map based on the image representation map, wherein the surface map is a representation of correspondence between the image representation map and a 3-dimensional (3D) surface associated with a human body.