Factory Reset; Usb Upgrade - ZKTeco ProBio(QR) User Manual

ProBio (QR)
1:1 Threshold Value
1:N Threshold Value
Exposure
Quality
NOTE: Improper adjustment of the exposure and quality parameters may severely affect the performance
of the device. Please adjust the exposure parameter only under the guidance of the after-sales service
personnel of our company.

Factory Reset

The Factory Reset function restores the device settings such as communication settings and system settings,
to the default factory settings (this function does not clear registered user data).
Click Reset on the System interface and then select OK to restore the default factory settings.

USB Upgrade

With this option, the device firmware can be upgraded by using the upgrade file in a USB disk. Before
conducting this operation, ensure that the USB disk is properly inserted into the device and contains the
correct upgrade file.
If no USB disk is inserted in, the system gives the following prompt after you click USB Upgrade on the
System interface.
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Under 1:1 verification mode, the verification will only be successful when the
similarity between the acquired facial image and the user's facial templates
enrolled in the device is greater than the set value.
The valid value ranges from 55 to 120. The higher the thresholds, the lower the
misjudgement rate and the higher the rejection rate, and vice versa. It is
recommended to set the default value of 75.
Under 1:N verification mode, the verification will only be successful when the
similarity between the acquired facial image and all registered facial templates is
greater than the set value.
The valid value ranges from 65 to 120. The higher the thresholds, the lower the
misjudgement rate and the higher the rejection rate, and vice versa. It is
recommended to set the default value of 82.
This parameter is used to set the exposure value of the camera.
It is the image quality for facial registration and comparison. The higher the
value, the clearer image is required.
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