How to block trees or unwanted movement from recording in my DVR / NVR or triggering too many notifications
Tags: false motion detection, PIR sensor issues, camera false triggers, non-human motion recording, heat source interference, electrical noise interference, loose mounting problems, sunlight interference, camera positioning tips, thermal-sensing camera tips, motion detection optimization, unwanted recording triggers, camera sensitivity adjustment, environmental factors affecting recording, reducing false alerts, camera installation guidelines, motion sensor calibration, preventing false recordings, camera field of view adjustments, troubleshooting motion detection
NOTE: This article also applies if you receive too many notifications on the app triggered by non-human objects.
PIR sensors can detect heat (infrared radiation) from objects within and even outside the camera's field of view. Paired with moving objects captured by the camera like trees, swaying objects in sunlight, or cars passing, it can trigger the camera to record.
In this article, you will learn what settings on your recorder you can configure to virtually eliminate false triggers.
Remove The 'Red Boxes' From Constantly Moving Objects
The 'red boxes' shown above are the areas where the camera can detect movement. If trees are constantly moving or your camera is facing the road, you might want to remove these boxes so it doesn't trigger on those areas. Here's how you can remove it:
- Access the recorder's setup, go to Alarm, and click Detection.
- Click on the gear icon beside the Channel number you want to customize.
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- Deselect the areas (click the red boxes to clear it) where the cause of false triggers are.
- Right-click the mouse to exit that page.
- Click on Apply to save.
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Any movement on the red areas or boxes will be picked up.
Set up Analytics
DID YOU KNOW? Only selected units or kits have the capable hardware to have Analytics, and each has its own set of Analytics available. The units are:
- DVRs (except model numbers with 'X')
- NVRs - visit this article and click the Analytics tab to see what type of Analytics your NHD camera supports (the camera's are doing the Analytics, not the recorder)
- NVW-800CAM
In a nutshell, Analytics provides you with much greater control over how your system detects motion. Below is a YouTube playlist that explains how a specific type of Analytics work.
You can also check your recorder's manual for more details.
Relocate Or Reposition The Camera
The ideal position of the camera is 7-8 feet high, pointing downwards at an angle to cover the area where people will be walking across the camera’s path, and pointing the lens away from direct sunlight.
Visit the following links for more information about what heat sources outside of the camera's field of view that can trigger the camera's PIR sensors for recording and notifications:
NOTE: This should be a last resort only if lowering sensitivity, configuring area setup, nor analytics are not feasible options.