How to Stop False Alerts from Your Fermax Video Intercom
A Fermax video intercom system enhances your security by alerting you to activity at your entrance. However, if the system is not configured correctly, it can lead to a high number of "false alerts"—notifications for events that are not genuine visitors, such as moving shadows, passing cars, or even bad weather.
These unwanted notifications can be frustrating and may cause you to ignore a real alert. This guide will help you understand and configure your Fermax system's motion detection to ensure you only receive notifications for events that matter.
Understanding Motion Detection in Fermax Systems
Most Fermax video door entry systems with a camera use pixel-based motion detection. This means the system detects motion by analysing changes in the video image from one moment to the next. It does not inherently know the difference between a person, a car, or a shadow; it only sees that a cluster of pixels has changed. This is why proper configuration is so important.
Step 1: Adjust Motion Detection Sensitivity
The sensitivity setting determines how much change in the image is required to trigger a motion event. A high sensitivity level will cause the system to alert on very small changes, which is the primary cause of false alerts.
- Access the Settings Menu: Depending on your model (e.g., DUOX, MEET), you will need to access the settings via the indoor monitor or a web browser interface for IP-based systems. This may require an installer code.
- Locate Motion Detection: Navigate through the menu to find the "Motion Detection," "Video Motion," or "VMD" settings.
- Lower the Sensitivity: The setting is often a numerical scale or a set of levels (e.g., Low, Medium, High). If you are getting false alerts, your setting is too high. Reduce the sensitivity significantly—for example, from 80% down to 40%—and observe the results. You can fine-tune it later.
Step 2: Configure the Detection Area (Motion Mask)
One of the most effective tools for eliminating false alerts is the Detection Area, sometimes called a motion mask or region of interest. This feature allows you to specify where in the camera's view it should look for motion.
- In the motion detection settings menu, you should find an option to Set Area or Configure Mask.
- This will typically display the camera's view with a grid overlay.
- Select only the critical areas. For a front door, this would be the doorstep and the direct approach path.
- Deselect areas of common false triggers. This includes the street, public footpaths, swaying trees, and any reflective surfaces. By telling the system to ignore these zones, you cut off the source of most false alerts.
Step 3: Optimise Intercom Placement and Environment
The physical installation of the outdoor panel plays a key role.
- Field of View: The camera should be aimed to capture visitors at your door, not the entire street. If it's aimed too high or too wide, it will constantly be triggered by irrelevant public activity.
- Lighting Conditions: Drastic light changes can trigger alerts. For example, passing car headlights at night can sweep across the panel and set off the motion sensor. While not always avoidable, be aware that this can be a cause. Setting a proper detection area can help mitigate this.
- Weather: Heavy rain or snow falling directly in front of the lens can sometimes be interpreted as motion. Ensure the panel is installed with adequate protection from the elements where possible.
By carefully adjusting the sensitivity and precisely defining the detection area, you can dramatically improve the accuracy of your Fermax video intercom's motion detection. This will ensure that when you receive an alert through the Fermax BLUE app or on your monitor, it's for a genuine event that requires your attention.