Presence detection with dynamic radar operating modes

A computer-implemented method, comprising:

• implementing, by a computer system associated with a device, a first radar configuration for a radar sensor, the first radar configuration associated with a first mode, the first radar configuration comprising a first frame per second (FPS) rate and a first difference threshold, wherein the first difference threshold is based at least in part on an average magnitude of radar signal returns detected by the radar sensor over a period of time and a multiplier;
• receiving, by the computer system, first data comprising at least two consecutive frames, wherein the at least two consecutive frames comprise output data of radar signal returns from the radar sensor in the first radar configuration;
• determining, by the computer system, a presence of an object within a field of view of the radar sensor based at least in part on whether a difference between a peak magnitude of radar signal returns in a first frame of the first data and a peak magnitude of radar signal returns in a second frame of the first data exceeds the first difference threshold;
• instructing, by the computer system, the device to turn on based at least in part on determining the presence of the object;
• and
• implementing, by the computer system, a second radar configuration associated with a second mode based at least in part on determining an absence of the object using second data received from the radar sensor using the first radar configuration and the first difference threshold, the second radar configuration comprising a second FPS rate and a second difference threshold.

A computer system comprising:

• a processor;
• a radar sensor configured to capture data within a field of view of the radar sensor using one or more radar configurations;
• and
• a memory storing computer-readable instructions that, upon execution by the processor, configure the computer system to:
• implement a second radar configuration of the one or more radar configurations, the second radar configuration comprising a second frame per second (FPS) rate and a second difference threshold, wherein the second difference threshold is based at least in part on an average magnitude of radar signal returns detected by the radar sensor over a period of time and a multiplier;
• receive second data comprising at least two consecutive frames, wherein the at least two consecutive frames comprise output data of radar signal returns from the radar sensor in the second radar configuration;
• determine a static presence of an object within the field of view of the radar sensor based at least in part on whether a difference between a peak magnitude of radar signal returns in a first frame of the second data and a peak magnitude of radar signal returns in a second frame of the second data exceeds the second difference threshold, the computer system associated with a device configured to present content;
• and
• implement a first radar configuration in response to determining the static presence of the object, the first radar configuration comprising a first FPS rate and a first difference threshold.