8.4.2.8 Object Left/Removed

Object Left can detect and prompt an alarm if an object is left in a pre-defined region. Object Removed can detect and prompt an alarm if an object is removed from a pre-defined region.

Settings steps are shown as follows:

[Detection Settings]

Step1: Selected effective region including Normal and Advanced.

Normal mode is effective for all detection areas.

Advanced methods will work in specific fields of view and require setting a preset.

Step2: Selected detection region and enable object left/removed detection (Or you can enable both features at the same time).

[General Settings]

Step3: Set Min. time, detecting sensitivity and object size limits.

Table 1. Description of the buttons

Parameters	Function Introduction
Min. Time	After setting Min. time from 5s to 1800s, any objects are left in the selected area or removed from the selected area over the minimum time will trigger the alarm.
Sensitivity	Level 1~10 are available, the default level is 5. The higher the sensitivity, the easier it is for moving objects to be recorded in the results. Note: The sensitivity can be configured to detect various movement according to different requirements. When the level of sensitivity is low, slight movement won’t trigger the alarm.
Min. Size	Draw the screen or input pixel number to set the minimum size of the detected object. When the object is smaller than this size, it will not be detected. The default minimum size is 3*3.
Max. Size	Draw the screen or input pixel number to set the maximum size of the detected object. When the object is larger than this size, it will not be detected. The default maximum size is 320*240.

[Schedule Settings]

Step4: Set detection schedule;

[Alarm Action]

Step5: Set alarm action;