Techniques for optimizing motion detection using PIR detectors

An electronic device comprising:

• a wireless communication component;
• first, second, third, and fourth pyroelectric sensing elements, wherein the second pyroelectric sensing element is disposed between the first pyroelectric sensing element and the third pyroelectric sensing element, and wherein the third pyroelectric sensing element is disposed between the second pyroelectric sensing element and the fourth pyroelectric sensing element;
• one or more processors, and
• one or more computer readable media storing processor executable instructions which, when executed using the one or more processors, cause the electronic device to perform operations comprising
• receiving first data generated based on the first pyroelectric sensing element and the third pyroelectric sensing element,
• receiving second data generated based on the second pyroelectric sensing element and the fourth pyroelectric sensing element,
• determining a first absolute value based on the first data,
• determining a second absolute value based on the second data,
• determining a first sum value based on the first absolute value and the second absolute value,
• comparing the first sum value to a first threshold,
• determining a first difference value based on a first value based on the first data and a second value based on the second data,
• comparing the first difference value to a second threshold, and
• based on the comparing of the first sum value to the first threshold and the first difference value to the second threshold, sending, using the wireless communication component, third data.

An electronic device comprising:

• a wireless communication component;
• first, second, third, and fourth pyroelectric sensing elements, wherein the second pyroelectric sensing element is disposed between the first pyroelectric sensing element and the third pyroelectric sensing element, and wherein the third pyroelectric sensing element is disposed between the second pyroelectric sensing element and the fourth pyroelectric sensing element;
• one or more processors, and
• one or more computer readable media storing processor executable instructions which, when executed using the one or more processors, cause the electronic device to perform operations comprising
• receiving, from an integrated circuit component, first data generated at a first time based on the first pyroelectric sensing element and the third pyroelectric sensing element,
• receiving, from an integrated circuit component, second data generated at a second time based on the first pyroelectric sensing element and the third pyroelectric sensing element, the second time being after the first time,
• determining a slope value based on the first data and the second data,
• comparing the slope value to a first threshold,
• based on the comparing of the slope value to the first threshold, determining an offset value based on the second data,
• receiving, from an integrated circuit component, third data generated at a third time based on the first pyroelectric sensing element and the third pyroelectric sensing element, the third time being after the second time,
• receiving, from an integrated circuit component, fourth data generated based on the second pyroelectric sensing element and the fourth pyroelectric sensing element,
• based on the third data, the fourth data, and the offset value, sending, using the wireless communication component, event data.

A method comprising:

• generating, at a first time, first data based on a first pyroelectric sensing element and a second pyroelectric sensing element;
• generating, at a second time, second data based on the first pyroelectric sensing element and the second pyroelectric sensing element;
• determining a slope value based on the first data and the second data;
• based on comparing the slope value to a first threshold, determining an offset value using a first value indicated by the second data;
• generating, at a third time, third data based on the first pyroelectric sensing element and the second pyroelectric sensing element, wherein the third time is after the first time and the second time;
• determining a second value based on the third data;
• based on comparing the second value to a second threshold, sending alert data using a wireless communication component.