FLIR Exx-EST has three built-in FLIR EST Screening modes:
• Auto mode
• Button mode
• Operator mode
In Screening mode, the camera measures the surface temperature around the tear duct.
An alarm will trigger if the measured temperature is higher than the sum of a reference
temperature average and an allowed deviation.
The reference temperature average is calculated based on measurement samples regis-
tered by the camera. The allowed deviation can be specified by a setting.
Note
• When in screening mode, no images are saved by the camera.
• The camera only stores the temperature values of some measurements used for the
calculation of the reference temperature. It is impossible to connect these values to
any individual.
8.1
Auto mode
Auto mode is intended for screening at a screening station. The screening is fully auto-
mated and no operator interaction is normally required, except for initiation of the system.
The camera detects when someone stands in front of the screening station and then
shows live video on the display. The display graphics guide the person into the correct
position for the screening. When the person is in a good position, the camera measures
the temperature of the hottest spot within a measurement box, evaluates the measure-
ment, and displays a result.
8.2
Button mode
Button mode is intended for screening at a screening station. An operator is required to
initiate the system and during the screening process.
In Button mode, the screened person stands in front of the camera, looking at a display.
When the person is in a good position for screening, the operator presses a Bluetooth
button to trigger the screening. The camera detects and measures the temperature of
the hottest spot within a measurement box, evaluates the measurement, and displays a
result.
8.3
Operator mode
In Operator mode, an operator actively screens people when they are in the correct
position.
Before the screening, the operator must record reference samples. To keep the refer-
ence temperature up to date, the operator must also periodically record new samples.
8.4
Working principle (Auto and Button mode)
8.4.1
Moving average
The camera uses a relative temperature screening method, with a moving average as
reference. The moving average is calculated based on temperature measurement sam-
ples, which are registered automatically.
During the screening procedure, the camera compares the measured temperature with
the sum of the moving average and a configurable allowed deviation. The elevated
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