The solution is based on Panasonic’s Grid- EYE infrared (IR) sensor array. The Grid-EYE is a surface-mount sensor which has an 8 x 8 array of IR pixels, providing a ‘heat map’ of the field of view. IR sensors respond to sources of heat such as human bodies. The Grid-EYE sensor can readily detect multiple bodies in its field of view
and distinguish them from background sources of IR radiation with the aid of provided algorithms.
It provides sufficient resolution to detect the presence of individual people and their direction of movement, but not to identify them. This anonymous means of people counting is ideal for many people-movement applications in which the flow of people is the important parameter, not the identities of the people.
A Grid-EYE sensor solution could, for instance, be mounted at each door of a metropolitan train’s carriages to count the number of people entering and leaving at each station.
In the Future Electronics IoT solution, the Grid-EYE sensor’s digital output is transmitted via a LoRa® long-range, low-power radio to an internet gateway. A LoRa radio operating in licence-free radio spectrum has an open-space range of up to 15km, and provides a low-cost means to achieve wireless connectivity to a backhaul network.
The Future Electronics solution links the Grid-EYE sensor to the Flashnet inteliLIGHT® cloud-based monitoring application. This may be configured to display people counts, traffic flows and other information on any web browser.
• 7m maximum human detection range
• 60° viewing angle
• 4.5mA current in normal operating mode
• I2C interface
• Frame rate: 10 frames/s or 1 frame/s