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DVR Model RNL16 - RLC 811a camerasI need a detailed explanation that I cannot find in anything provided on this site. I am getting too many false alerts (no motion in recorded view) and missing vehicle detection on the same camera. Detection
Detection - SettingsSensitivity for Smart DetectionI am missing detection of vehicles sometimes and getting false detections of headlights that come at the front of the property, even though it is covered by a zone set to protect from alerts.Alarm DelayObject SizeIf you draw a box for the Minimum and maximum object size and save it will show on refresh on each side of the screen. the object size for person or vehicle will be different dependent upon it's proximity (distance from) to the camera. In other words the size of an objet that is 300 feet away is different than the size it takes up on the screen if it is 10 feet away. So when drawing this box, how does the system interpret this information. Is it important to set these values? Are they better left alone?
Hello, there. As for the sensitivity for smart detection, the higher the level, the more sensitive the motion detection. For instance, in level 1, the alert will be triggered when motion is detected in 10% of the motion detection area; In level 50, the alert will be triggered when motion is detected in 0.5% of the motion detection area.You can set different motion sensitivity values for the four time periods. You may change each period’s starting and ending time to adapt to the changing lighting conditions of the surroundings. It is recommended to set the sensitivity higher (10-50) in the daytime and lower (1-10) at night time.To find the best sensitivity values at different times in day/night, please test the system during different time periods. You may ask a friend to move in front of the camera for which you want to adjust the sensitivity. The ideal sensitivity level is the one when your friend's movements always trigger the motion detection, and there are no false triggers (or very few) when your friend isn’t moving.
@reolink-fiona Great information- I did not know to adjust the sensitivity for dark hours- that makes sense as to why I get mor false alerts at night. Thank you !
As for the Object Size, moving objects that are smaller than the minimum object size or bigger than the maxmum object size will not trigger alarm. You can customized the object size by your actual usage. It is not necessary to set it. If so, the alarm will be triggered when there is an object in view.As for the Alarm Delay, quite a lot of false alarms happen at night or on snowy or rainy days. If snowflakes and raindrops enter the box of the stationary object, resulting in sudden changes and false alarms. To reduce this circumstance, we add the Alarm Delay feature.How it works: AI may take 20 frames in 1 second to analyze and see how many frames are with the motion. Only when AI detects motions in most of the frames, this motion is considered a true alarm. We recommend you to untag any motion if posssible. Just detect person, vehicle. And enable the alarm delay to reduce the false alarm.Recommended settingsFor person detection, 1 second;For vehicle detection, 1-3 seconds.
@reolink-fiona Thank yo for your reply. My question related to object size is where you position the box, in this ca*se the maximum size (green box). When positioned in the bottom of the frame it may represent a small riding lawn mower for instance. When positioned in the upper part of the frame it may represent a Semi tractor trailer. SO how does this work?
@wleibrook_480642943336579 Hi, there. The object size is not related to where you position the box. For example, in the human/vehicle alarm mode, any moving person or vehicle that appears in the camera's field of view will be recognized. And an alarm will be triggered if the sizes of them on the screen exceed the Minimum Object Size and being smaller than the Maximum Object Size. You can also disable the Object Size. Then it will trigger alarms without restricting the size of the recognized person or vehicle.
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