8.4.2.4 Tamper Detection

Tamper Detection is used to detect possible tampering like the camera being unfocused, obstructed or moved. This functionality alerts security staff immediately when any above-mentioned actions occur.



Settings steps are shown as follows:

Step1: Enable Tamper Detection and set detecting sensitivity;



[Schedule Settings]

Step2: Set detection schedule;

Note: This part is the same as the regular schedule settings. You can refer to 8.4.2.1 Region Entrance.

[Alarm Action]

Step3: Set alarm action;

Note:
  • This part is the same as the regular alarm settings. You can refer to Description of the buttons.
  • If you enable External Output and choose Constant External Output Action Time, when possible tampering is detected, External Output Action alarm time will be always constant till the alarm is released.
  • The algorithm supports defocus detection in Tamper Detection function.