Too many motion alerts.
An alert system you have learned to ignore is worse than none, because you will ignore the real one too. Almost all of it comes from six causes, and each has a specific fix.
- Trees and plantsAnything that moves in wind will trigger forever. Exclude it from the zone rather than trying to tune around it.
- Rain, snow and fogClose to the lens and lit by infrared, precipitation looks like a large fast object. Shielding the lens and pulling the zone in both help.
- Insects and spidersDrawn to the infrared, and a moth at 3 cm fills the frame. A web across the lens triggers all night. This is a cleaning problem more than a settings problem.
- Headlights and passing trafficA road in the corner of the frame will generate alerts all evening. Exclude the road.
- Shadows and cloudMoving shade over a wall reads as motion. Sensitivity helps; zone shape helps more.
- Infrared switchingThe whole image changes when day/night mode flips, which can register as one big event. Expect two a day and ignore them.
The instinct is to turn sensitivity down, which also makes the camera miss a person in dark clothing. Shaping the zone is almost always the better move: mark only the ground somebody must cross — the path to the door, the gate, the area in front of the shed — and leave the sky, the road and the trees out of it. VISEC's motion algorithm adapts to how busy a camera is, so a well-drawn zone lets it settle.
- Minimum object sizeIgnoring very small movements removes insects and leaves without touching people and vehicles.
- Sensitivity, gentlySmall steps, and check at night as well as in daylight. Night is where over-tuning costs you.
- Move the cameraSometimes the answer is physical: angle it down so the sky and the road leave the frame entirely.
- Separate recording from alertingRecord generously, alert narrowly. You lose nothing from the archive and stop training yourself to dismiss the notification.
Quick answers.
Should I just turn the sensitivity right down?
It is the most common mistake. A camera insensitive enough to ignore rain will also ignore a person walking slowly in dark clothing. Shape the zone instead.
Can one camera have different zones?
The motion settings are per camera, so each one can watch only the part of its view that matters.
Will fewer alerts mean less recording?
Only if you tie them together. Keep recording on a generous motion setting and put the tighter rule on the alert.
Try it on one camera.
The free license is the complete program — recording, alerts, plate recognition, QR reading and access control. It does not expire.