NVR 2.0 User Manual (4
th
ed.)
61
Figure11.6 Goods detection
（
1
）
Channel: Select the channel;
（
2
）
Detect Mode: divided into front-end and local, two models to the actual
capacity of the product subject, select the front-end mode requires front-end IPC support,
select the local mode requires NVR support.
（
3
）
Enable: Check to enable the target count;
（
4
）
Display In Preview: When enabled, you can see the detection line and the
statistical result in the preview interface.
（
5
）
Detect Area: Each screen can be set up to 4 detection area, drag the mouse
directly on the screen to draw the line, release the left button, move the mouse again to
form a second left-click line, and then click Right after the automatic closure of the
formation of the region is the detection area (to set up a qualified area at least manually
draw two lines);
（
6
）
Detection Type: "lost items", "items left behind", "missing items or items left
behind" 3 types;
（
7
）
Proportion: moving objects in the screen than the size of the set when the
size can be used as "items";
（
8
）
Detection time: detected items lost / left more than this time to trigger the
alarm;
In accordance with the above settings, in the channel screen, the proportion of more
than 150 items in the detection area disappeared more than 30s, triggered object
detection alarm, alarm before and after the real-time preview screen, respectively, as
shown in figure 11.7 and figure 11.8. (Which identifies the blue rectangle that is missing
the area where the goods)
