Questions about day/night brightness management (profile)

Gleneroo · 2019-07-22T13:02:49+00:00

Hello I have 7 cameras Dahua IPC-HDW4631C. They are located near the roof, POE fed. 4 are connected to my Dahua NVR. It is 8 channels with 4 POE ports (model: DHI-NVR4108-P-4KS2). I also have a Dahua POE switch, where the 3 remaining are connected. Everything is working (mostly) fine ; NVR records ; I receive snapshots for motion detection ; I have app to view records ; etc. I have few problems of lesser importance and maybe some experienced or curious people can help me with those: 1/ Day/night: During day time, cameras image is perfect, but during night, maybe because they are far from the ground, it is mostly deep black. I need to connect to camera (NVR doesn't have enough options) I can fix that a bit with playing with settings (brightness, contrast, etc). But these settings will make an image far too bright during the day. I would like to have these settings applied only during night, when darkness falls below a certain level. Actually, it could very well be when camera automatically switches from day to night mode (IR turns on). Ideally, the settings could move progressively ; that would be perfect. At the moment, what I have done is setting a profile (in "profile management") and I can set a schedule when it switches from day mode to night mode. The time of switch is fixed, and applies exactly every day (currently 7am and 10pm). This is far from ideal because during winter or summer it is not the same, and at the exact time of switch, before and after, image is not ideal. 2/ Motion detection: I receive far too many snapshots. E.g. it can be insects, shadow of the trees if there is wind, etc. I have tried playing with sensitivity and aperture settings, but things don't really improve. Anyway, I have read somewhere motion detection was outdated and now we should use IVS. I understand IVS cannot really be set up from NVR but needs to connect to camera directly. Fine. Connecting to camera, I can enable IVS, tripwire, activate, emails settings. But I have never received any snapshot... Any help welcome. 3/ Connecting to cameras: Here is my network. I don't manage to connect to cameras in NVR subnet. In NVR menu, there is an IE link, but it just opens an IE page with the addreess, which of course doesn't help. If I connect (old) 10.1.1.65 to POE switch, it keeps its address in 10.1.1.x ! I know I just have to connect it to a computer, but the thing is there is no power supply on these cameras, other than POE (and since they are on the roof, it is not accessible). What if I connect target camera on POE switch, connect computer to uplink on POE switch, and POE switch not being connected to the internet anymore ? Briefly, how to connect to these cameras currently on NVR ? Thank you

Questions about day/night brightness management (profile)

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