PLANET CV3-M1024 - Manual (Page 22)

Configuring Tripwire
To configure tripwire, select “Tripwire” from the “Event Mode” drop-
down menu. Click and hold down the mouse left button to draw a line
on the video:
To re-arrange the position of the line, hover the mouse cursor onto either tip
end and once you see the color of the cell box becomes green, click and
hold down the mouse and move the cell box to a desired new position:
The tripwire function can be configuring to detect traffic
coming from one way or both. Bi-directional detection is
enabled by default; to configure detection for one way only,
click the cell box in the middle of the line. Click again to
change direction.