Learning Center

Our current sensor has a 60º field of view. The coverage area of each sensor depends on its mounting height; for example, at a mounting height of 3.1 meters / 10.2 ft , the coverage area is 3.6 x 3.6 meters / 11.8 ft x 11.8 ft.

The positional accuracy of our current sensor is at +/- 30 cm (1ft), Headcount accuracy 95+% *, surface temperature reading at +/- 0.5 C.
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*measured at standard indoor environment at 10ft installation height.

Our sensor can measure human body temperature at close range. However, when installed overhead for spatial monitoring, the accuracy of the body temperature fluctuates as the sensor does not point to body parts where the individual's thermal signal is the strongest.

Depending on the height and subsequent coverage, one single sensor can detect as many as six (6) distinct people standing simultaneously next to each other in a 5ft x 5ft square*. Since a Butlr Network can extend indefinitely in indoor spaces, the number of people the entire network can detect at the same time is equally indefinite and relative to the number of sensors a network consists of.
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*measured at standard indoor environment at 10ft installation height.

Yes, this feature is expected in Q4 2021.

No - our algorithm is designed to work with multiple installation scenarios including overlapping sensor coverage. Simply put, our sensors automatically stitch up together to form a seamless heatmap for continuous trajectories.

Passive Infrared Sensors (PIR) allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensors range. The difference between our Heatic Sensor and a PIR sensor is that Heatic Sensor can detect all sorts of presence, and is not limited to people in motion. Our Heatic Sensors can successfully detect people sleeping, sitting and lying down and their location in the space— a PIR sensor cannot. Finally, the Heatic sensors perform significantly better in more complicated spatial scenarios with significantly higher accuracy than PIR technology.

Each Hive can support up to 12 sensors while maintaining real-time update rates.

There are no limits when it comes to quantity of detected objects or covered area; a Butlr sensor network can extend indefinitely in indoor spaces, provided that we deploy the needed amount of Heatic sensors and Hives.

Heatic Hive and Sensors will form a mesh network when successfully connected. The network coverage will extend with more sensors added to the network. We recommend deploying the first sensor within 10 meters (35 feet) of the hive.  The new sensors added to the network should be 10 meters from any devices (sensors or hive) in the network.

Our sensors capture only low-resolution, thermal data. This type of data is inherently non-identifying and non-sensitive. Our sensors do not capture Personally Identifiable Information like personal characteristics, retina scans, voice signatures, or facial geometry.

There are two types of data traveling to our servers: raw sensor data and spatial data. The raw sensor data are low-resolution, thermal information; inherently non-identifying and non-sensitive. The second type, the spatial data, is the information the user provides through the setup app, e.g., location of furniture objects and names of rooms. The system has no way of scanning or acquiring this type of information via the sensors.

Active data (hot storage) are stored for up to three (3) months.

We have an extended policy securing both our time-series and static data, in transit and in storage. Should your legal or technical department wish to learn more about the technical specifications of our security practices, feel free to reach out to us at privacy@butlr.io