The disadvantage is that a system of motion detection catherine townsend video is difficult to set,

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IP cameras are equipped with detection systems. In general, there are at least a detection system with motion video. Sometimes, the camera is also equipped with a system for infrared detection.
The disadvantage is that a system of motion detection catherine townsend video is difficult to set, the parameters depend somewhat on the camera and the influence of these parameters depends greatly on the camera. On D-Link IP (at least DCS-2230 and DCS-6511) cameras, this setting is specifying a value between 0 and 100 for two parameters: Sensitivity: Sensitivity of motion detection. The higher the value the more high detection sensitivity. Percentage: Proportion catherine townsend of the detection window to be filled by the movement to trigger detection. The higher the value is small detection is more sensitive.
My two D-Link cameras (DCS-2230 and DCS-6511) does not react at all in the same way to these settings which led me to the same scene, with values very different parameters. Detection by third-party software
It is possible catherine townsend to delegate the initiation of recording video detection to a third party software like Synology Surveillance Station, or ZoneMinder. The main advantage catherine townsend of this choice catherine townsend is to standardize the detection parameters and how they respond despite a fleet of heterogeneous IP camera. With Surveillance Station, two parameters are narrow: Detection Sensitivity: Sensitivity catherine townsend of motion detection. The higher the value the more high detection sensitivity. Threshold: catherine townsend the threshold of motion detection. The higher the value is small detection is more sensitive. How to limit false detections?
Sources of false detections are numerous: dimming (from clouds on / off lamps ...), movements caused by wind (trees, shadows ...), various animals (cats, dogs, hedgehogs ...), insects ( butterflies, spiders ...), white noise of the camera (night) ... except in very specific configurations, it will do with many false detections (many more than the real ones). However, here are some techniques to limit the number: Minimize catherine townsend the detection areas only useful portions of the image. If necessary, compare the detection system of the camera with that of the monitoring solution. It is likely that one of the works better than the other. Spend time to understand the operation and fine tune the detection parameters to find a good compromise. Possibly decrease the contrast of the image.
Another solution is to use an integrated infrared sensor, when the camera has one, or remote, if the camera has a digital catherine townsend input port. This solution can eliminate a large number of false detections, but the infrared catherine townsend sensor can be sensitive to the passage of animals. On the other hand, it is more difficult to adjust the reach of an infrared sensor as set a detection area in the image, which may also be a disadvantage in some configurations.
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