Ho praticamente da quasi un anno installato un impianto di videosorveglianza Dahua IP, ma su una telecamera ptz ho un difetto durante il corso della giornata, sarebbe gradito qualsiasi informazione, da come si vede nel video, l'immagine fa questo difetto, se servono altre informazioni e dettagli non ci sono problemi... Ho bisogno di aiuto, grazie
alastairstevenson
Staff member
Have you tried a hard reset of the camera?
What is the model number?
Hai provato a fare un hard reset della fotocamera?
Qual è il numero del modello?
What is the model number?
Hai provato a fare un hard reset della fotocamera?
Qual è il numero del modello?
IAmATeaf
Known around here
Is that happening during a transition period from say day to night or night to day? Something very similar happens to one of my cams at these times where the camera hunts between switching between day/night settings and can’t quite make its mind up.
If this is the issue then you can get around it by sending commands to the cam to force it into day/night on a schedule.
If this is the issue then you can get around it by sending commands to the cam to force it into day/night on a schedule.
[CITAZIONE="TonyR, post: 877278, membro: 752"]
Hai provato a fare un hard reset della fotocamera?
Qual è il numero del modello?
Hai provato a fare un hard reset della fotocamera?
Qual è il numero del modello?
[/CITAZIONE]
No, questo no, non ancora, sto cercando di evitarlo, il modello è Dahua SD6C3425XB-HNR-A-PV1 4MP
Hai provato a fare un hard reset della fotocamera?
Qual è il numero del modello?
Hai provato a fare un hard reset della fotocamera?
Qual è il numero del modello?
[/CITAZIONE]
No, questo no, non ancora, sto cercando di evitarlo, il modello è Dahua SD6C3425XB-HNR-A-PV1 4MP
[CITAZIONE="IAmATeaf, post: 877280, membro: 69210"]
Ciò accade durante un periodo di transizione, diciamo, dal giorno alla notte o dalla notte al giorno? Qualcosa di molto simile accade a una delle mie telecamere in questi momenti, quando la telecamera va a caccia tra il passaggio tra le impostazioni giorno/notte e non riesce a decidersi.
Se questo è il problema, puoi aggirarlo inviando dei comandi alla telecamera per forzare l'attivazione del modo giorno/notte secondo una programmazione.
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No, in pieno giorno. E solo di giorno
Ciò accade durante un periodo di transizione, diciamo, dal giorno alla notte o dalla notte al giorno? Qualcosa di molto simile accade a una delle mie telecamere in questi momenti, quando la telecamera va a caccia tra il passaggio tra le impostazioni giorno/notte e non riesce a decidersi.
Se questo è il problema, puoi aggirarlo inviando dei comandi alla telecamera per forzare l'attivazione del modo giorno/notte secondo una programmazione.
[/CITAZIONE]
No, in pieno giorno. E solo di giorno
[CITAZIONE="Bnmcorp, post: 877250, membro: 209803"]
Ho praticamente da quasi un anno installato un impianto di videosorveglianza Dahua IP, ma su una telecamera ptz ho un difetto durante il corso della giornata, sarebbe gradito qualsiasi informazione, da come si vede nel video, l'immagine fa questo difetto, se servono altre informazioni e dettagli non ci sono problemi... Ho bisogno di aiuto, grazie
[/CITAZIONE]
Ma vorrei chiedere se potrebbe essere un problema di spinotti e giunzioni o ossido sui contatti...?? Potrebbe creare certi problemi?
Ho praticamente da quasi un anno installato un impianto di videosorveglianza Dahua IP, ma su una telecamera ptz ho un difetto durante il corso della giornata, sarebbe gradito qualsiasi informazione, da come si vede nel video, l'immagine fa questo difetto, se servono altre informazioni e dettagli non ci sono problemi... Ho bisogno di aiuto, grazie
[/CITAZIONE]
Ma vorrei chiedere se potrebbe essere un problema di spinotti e giunzioni o ossido sui contatti...?? Potrebbe creare certi problemi?
IAmATeaf
Known around here
The only thing that might be worth checking is the power requirement for the cam and what your switch can supply? Only thing I can think of if it’s happening during the day
[CITAZIONE="IAmATeaf, post: 877293, membro: 69210"]
L'unica cosa che potrebbe valere la pena di controllare è il fabbisogno energetico della cam e cosa può fornire il tuo switch? L'unica cosa che mi viene in mente se succede durante il giorno
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Puoi aiutarmi a capire se ti mando le specifiche? gentilmente... Questo e lo switch a cui e collegato solo due cam, quella in questione e questa Dahua IPC-HFW2841T-ZS 8MP
L'unica cosa che potrebbe valere la pena di controllare è il fabbisogno energetico della cam e cosa può fornire il tuo switch? L'unica cosa che mi viene in mente se succede durante il giorno
[/CITAZIONE]
Puoi aiutarmi a capire se ti mando le specifiche? gentilmente... Questo e lo switch a cui e collegato solo due cam, quella in questione e questa Dahua IPC-HFW2841T-ZS 8MP
So you have asked about this camera in another thread.. To answer your questions on this camera. Yes the contacts can be an issue, How are you powering this camera? The camera requires POE+ and can work with 24vdc at 2.5amps.. plus or - 25% so that means that the camera can work at 18vdc to 30vdc.. So the issue could be Power supply if you are using the included power supply or I think it was,, If it was you need to make sure that you are powering the camera as close to it as you can so you don't get a large voltage drop..
Problem that people can have is they use a power supply that came with camera at home location and pull under sized wire to the camera. So lets say that your cameras location is 25 feet from the power supply. The power wire is only 5 foot long. That means that 20 foot of cable has to be ran to the camera.. For me and might be over kill, But I would run 16ga wire. not some cheap CCA but some real copper wire and because it is an alarm output camera I would maybe run 14ga wire just to be safe. Problem is that most of the junk people buy not knowing is CCA and that can act up with heat of the day or if the cable is ran in a hot attic..
Problem that people can have is they use a power supply that came with camera at home location and pull under sized wire to the camera. So lets say that your cameras location is 25 feet from the power supply. The power wire is only 5 foot long. That means that 20 foot of cable has to be ran to the camera.. For me and might be over kill, But I would run 16ga wire. not some cheap CCA but some real copper wire and because it is an alarm output camera I would maybe run 14ga wire just to be safe. Problem is that most of the junk people buy not knowing is CCA and that can act up with heat of the day or if the cable is ran in a hot attic..
I had this problem and I asked for help in this post but it has nothing to do with the other one where I just want to replace it with another type DH-SDT6C432, the problem still remains, I have not solved it, to answer your questions; no, I do not use the power supply supplied with a poe switch that I bought on amazon, you can find all the info above; only two cameras are connected and at the beginning everything worked fine, then it started to do this defect.. this is what the technical sheet says
Power Supply:24 VDC, 2.5 A (± 25%) (included),PoE+ (802.3at)
Yes but keep in mind that data is with quality cables. I am not saying that you are not using pure copper cables but I have repaired my fair share of cameras that were connected to cat cable that was CCA. Most times with a camera like yours a high power POE PTZ would have killed it by now.. With it being a day issue it could be that the cable you are using is a high quality CCA cable and the issues that you have is related by the cable getting warm in the days heat? did the camera come with power supply when new? Some do and some don't so I don't know if this one did or if it was one of them ones that needed to buy if you wanted one? IF it did. I know not many people have a power source next to the cameras location but for testing it I would remove the camera from the POE switch and test it with the cameras Power supply even if you have to pull an Extension cable for the power. Keep in mind that can be tricky as well lol.. Don't want to pull a small cord for this because the power supply will want some good voltage and current from your power grid..
Another thing that it might be and if you have not tested it, I would change POE ports on your switch to see if maybe the issue is with your port.. Could be errors, dirty port, or many things. It is strange that the issue would be going still with what I seen in your video since Sept 2024 if it was CCA issue. Again could be a higher quality CCA that the camera is able to get most of the current it needs and has not damaged the POE PD circuit or POE Transformer as they can even with a lower current camera of mine new from box was letting my friend use while he was waiting for replacement, Just plugging the camera into his cable the camera powered on, and by the time we made it 100 feet to his monitor room the camera died lol.. It was very low current camera. But after that I found his CCA was in the attic and was very low quality.. If it was a PTZ camera would have not lived a second lol..
Another thing that it might be and if you have not tested it, I would change POE ports on your switch to see if maybe the issue is with your port.. Could be errors, dirty port, or many things. It is strange that the issue would be going still with what I seen in your video since Sept 2024 if it was CCA issue. Again could be a higher quality CCA that the camera is able to get most of the current it needs and has not damaged the POE PD circuit or POE Transformer as they can even with a lower current camera of mine new from box was letting my friend use while he was waiting for replacement, Just plugging the camera into his cable the camera powered on, and by the time we made it 100 feet to his monitor room the camera died lol.. It was very low current camera. But after that I found his CCA was in the attic and was very low quality.. If it was a PTZ camera would have not lived a second lol..
So let me understand would it be repairable? I will try to connect its power supply (already in the package) with a flying cable, thanks for the advice, then I will update you. For the rest I would like to understand, so the AC cables are not suitable? I have already changed the POE ports.
I know I'm being pushy but thank you so much for all the help you're giving
So it's not easy to tell someone what an issue is only some ideas what might be an issue. Bad cables or ends. Bad ports or packet loss caused bt many different issues. Distance. So testing with power supply can help understand what might be the cause.
okay as soon as I can in these days, I will try to connect its original power supply and I will let you know how it goes.