The AMG88xx series of Grid-EYE sensors from Panasonic feature 64 thermopile elements in an 8×8 grid array that can detect absolute temperatures by infrared radiation. The Grid-EYE range has recently been expanded to include a new high performance type, standard parts have a human detection distance up to 5 meters whilst the new higher performance types have an increased human detection distance of up to 7 meters.
Grid-EYE is able to measure actual temperature and temperature gradients effectively providing a thermal image of the area being monitored. This allows the sensor to easily detect multiple persons and identify their positions and direction of movement, this can be done almost independent of ambient lighting conditions and without disturbing privacy as with conventional cameras.
The cost-effective Grid-EYE High Precision Infrared Array Sensors are based on advanced MEMS technology and offer a robust and compact solution for contactless temperature measurement across the entire specified area with very accurate results. The built-in silicon lens provides a viewing angle of 60°.
Key Features
- Based on advanced MEMS technology
- Temperature detection of two-dimensional area: 8 × 8 array (64 pixels)
- Choice of operating voltages: 3.3 VDC or 5.0 VDC
- Available in standard and high performance types with human detection distance up to 7 meters
- Available in Low Gain or High Gain versions
- Digital I2C output
- Capability for contactless temperature measurement with ±2.5°C accuracy
- Compact SMD package compatible with reflow solder process
- Operating temperature range 0°C to +80°C (High Gain) and -20°C to +80°C (Low Gain)
- RoHS compliant
Data
Grid-EYE AMG88xx datasheet The temperature measurement values can be read out via I²C interface at 1 or 10 frames per second. The interrupt signal output delivers a quick response to time-critical events, offering a high degree of flexibility. The high gain sensors have a typical temperature accuracy of ±2.5°C whereas the low gain sensors have an accuracy of ±3.0°C.
Functional Block diagram
Compared to single element thermopile sensors and pyro-electric detectors, Grid-EYE sensors offer designers extended possibilities for detecting persons and objects, enabling advanced applications. Typical applications include Professional and Consumer kitchen appliances, HVAC systems, Building controls, Energy management, Digital signage, Security systems, Patient position detection, Thermal imaging, Industrial process control, Contact-less temperature measurement and Automatic door and occupancy controls.
Panasonic have developed a Grid-EYE evaluation kit which comes complete with all the hardware, leads and software required along with an easy to follow quick start guide. This comprehensive and well supported evaluation kit enables designers to rapidly prototype proof of concept sensor designs for the next generation of advanced products.
