Thermal array sensor provides accurate people detection in intelligent lighting controls

The Grid-EYE® thermal sensor from Panasonic has an 8 x 8 grid which generates a 64-pixel thermal image. With people tracking and counting algorithms, the sensor enables lighting controls to dim or turn-on LEDs automatically.

The Grid-EYE thermal sensor from Panasonic is a sophisticated sensor for detecting the presence of people, enabling intelligent control and dimming of lighting systems to save power and improve responsiveness to user demand. 

The Grid-EYE infrared array sensor is a 64-pixel infrared camera housed in a compact surface-mount package. Grid-EYE combines a MEMS sensor chip, a digital ASIC with an I2C interface, and a lens in an 11.6 mm x 8 mm x 4.3 mm package. 

The thermopile elements are in an 8 x 8 grid format which measures both temperature and temperature gradients contactlessly. These temperature outputs can be converted to a 64-pixel thermal image.

Sensor outputs that show the presence of people in the controlled space can be used for various functions:

  • To configure lights to brighten when the space is occupied, reducing energy usage in areas that are not being used 
  • To create heat maps to show how people use the space. This enables a building operator to optimize layouts and pathways. The data can also be used to inform decisions about wayfinding and guidance
  • To count occupants of a room for safety and regulation purposes 


Because the Grid-EYE provides a deliberately low-resolution, 64-pixel image output, this monitoring of people’s usage of a space is inherently anonymized, and so avoids the risk of infringing users’ right to privacy.


Product Name Type Field of View Amplification Factor Operating Voltage Part Number Temperature of Measured Object
Grid-EYE Narrow angle 35.6° Low Gain 3.3 V AMG883642 -20°C to 100°C
Standard type 60° High Gain 3.3 V AMG8833 0°C to 80°C
Low Gain AMG8834 -20°C to 100°C
High Gain 5 V AMG8853 0°C to 80°C
Low Gain AMG8854 -20°C to 100°C
Wide angle 90° High Gain 3.3 V AMG883543 0°C to 80°C
5 V AMG885543
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