Wireless bridge effects on Dahua cameras?

QuattroZ

Young grasshopper
Nov 6, 2024
64
22
UK
I have a garage which is around 40ft from the front of my house.
There are two cameras on the garage, one at each end.
The signals/data from the cameras is transmitted via a wireless bridge to the nvr in the house.
The cameras work ok in daylight, and intrusions are notified on the nvr by a beeper .
The system is set up to arm after 730pm and disarm after 630am.

I performed a walk round to check all the 5 cameras on the property sound and flash after 730pm.
Camera on the back of the garage: white light came on but dim even though the Illumination setting was the same as the others. No alarm sounder or flashing or flashing red/blue lights.

Camera on front of garage: Dim white light, but alarm sounder/flashing lights do work.


Brief History
Oct 27th When I performed a search on the rear camera, I found that my intrusion blacked out the image to the extent that I could just about make out my face as I moved around in the zone.

Oct29th On the front camera, a day later after arming, I was at my computer screen which is next to the monitor, with all cameras images showing in monochrome,when there was a disturbance on the camera.
I then did a search on that camera, and found that it had blacked out too.

back to today.
I opened the Camera image section, and looked at the profiles for all of the cameras.

When I switched from auto to colour all the cameras including the front and rear garage cams showed a coloured image, and in both day and night Profile. Bear in mind it was 830pm in UK so it's dark.

I returned the rear camera to the day profile and auto in the day/night mode. And I also reduced the Illumination to 50 from 80 to see if it made any difference.

Next I re-entered the Rear camera zone. Still no alarms.

When I returned to replay the footage the screen went from monochrome to colour when I entered the intrusion zone, and the image was there if somewhat gloomy. I had taken my spotlight torch, and this positively affected the areas illuminated buy the torch. Still no alarm sounder or lights.

I'd previously had a fiddle with some of the wires in the garage to check if the RJ45s were fully seated.

These two cams have always shown up as Disconnected in Camera / PoE ( red dot next to the port number.)
However under Camera list/Device status, all 5 cameras show green dots. Even though Motion in disabled there are green dots against the cameras
In Camera list/camera list, the garage cams are connected to 37777 - these transmit via the wireless bridge and the gismo in the attachment
The light grey cable goes to the NVR, and the black cable comes from whatever is attached to the Witek on the front of the house, with the signals from both garage cams
Gismo from Witek to NVR.JPG

Anyone else had this kind of problem?

Apologies for starting another thread on my problems.
 
This has nothing to do with the wireless bridge.

This is all camera settings and/or limitations of the cameras.

As I mentioned in your other thread, those cameras are known to be problematic, and even more so at night.

8MP on a 1/2.8" sensor will struggle at night, and that camera struggles even more than most 8MP on the 1/2.8" sensor.

And then the changes you made that you don't know what effect they had compounded it.

Lot's of threads here where people showed how bad the 3849 camera is in performing:

IPC-HDW3849H-AS-PV issues

IPC-HDW3849H-AS-PV loses connection/reboots during the day

Replaced HDW5442TMP-ASE by HFW3849T1P

Dahua 8mp (TIOC): Full Colour, Active Deterrence & AI

IPC-HDW3849H-AS-PV Video Quality
 
Thanks Wittaj.
I'm pretty sure I haven't changed anything apart from fiddling with the image settings - as I said it all works in Daylight no problem, but the alarms aren't on during daylight. I'll run a test tomorrow to see what happens.
I will read the threads religiously.
Latest from the installer - his employee he offered to send to fix the problem -
"No he won’t be, he doesn’t want to come and deal with all your questions unfortunately. He’s also about to go on maternity leave for two weeks.

I think the only option now is to take the equipment out and leave you the cabling in place along with the wireless bridge. Our cost for this is about £1200, we can then refund the rest back to you which would be £1440. More than enough to buy your own equipment. " Some service eh?
 
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Thanks Wittaj.
I'm pretty sure I haven't changed anything apart from fiddling with the image settings - as I said it all works in Daylight no problem, but the alarms aren't on during daylight. I'll run a test tomorrow to see what happens.
I will read the threads religiously.
Latest from the installer - his employee he offered to send to fix the problem -
"No he won’t be, he doesn’t want to come and deal with all your questions unfortunately. He’s also about to go on maternity leave for two weeks.

I think the only option now is to take the equipment out and leave you the cabling in place along with the wireless bridge. Our cost for this is about £1200, we can then refund the rest back to you which would be £1440. More than enough to buy your own equipment. " Some service eh?
If the UK has any sort of contractor or business bureau (like BBB.org here) or license board where you can post how poorly the vendor responded to your issue I'd be sure to give them a scathing review.
 
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Thanks Wittaj.
I'm pretty sure I haven't changed anything apart from fiddling with the image settings - as I said it all works in Daylight no problem, but the alarms aren't on during daylight. I'll run a test tomorrow to see what happens.
I will read the threads religiously.
Latest from the installer - his employee he offered to send to fix the problem -
"No he won’t be, he doesn’t want to come and deal with all your questions unfortunately. He’s also about to go on maternity leave for two weeks.

I think the only option now is to take the equipment out and leave you the cabling in place along with the wireless bridge. Our cost for this is about £1200, we can then refund the rest back to you which would be £1440. More than enough to buy your own equipment. " Some service eh?

But you fiddling with the image settings could be what caused it.

Any camera, even crappy 8MP on 1/2.8" sensors can do ok in the daylight.

At night, that sensor needs a ton of light. And the piddly LED white lights on those cameras are not powerful enough to provide enough light to get an image.

It honestly may be better for you to take them up on that offer to remove those cameras and give you a refund and buy better cameras.


Here was a thread of someone burned by an installer with the 4MP version of that camera. You can see how bad this was performing at night - the same issues you are experiencing - works in day and not at night - well 8MP would be twice as dark as these images and probably why you have black images:

Dahua TIOC camera does not recognize the IVS rule at night, original support is at a loss...


We hate to say it, but we see way too often these "professionals" providing cheap @$$ crap. Here is just a sampling of people that came here after being burned by a "professional" that provided them with the wrong system or a ridiculously high quote for cheap cameras and they replaced cameras based on our FREE suggestions and then started capturing what they wanted:

Human / Face detection


Storage Expansion - X54A5L


Got an installer quote - recommending Lorex


Eyeonet, anyone?


Camera upgrade.


Help newb here with a messed install looking for help.


Has anyone heard of Eclipse Cams/NVR?


 
But you fiddling with the image settings could be what caused it.
Yesterday was the first time I altered the Profile and Day/night modes. The problems started long before then.
Re refunds He reckons the cost of installing the wireless bridge and all the cabling was £1200 = $1515 so he will only refund $1820 of the $3330mI paid him.
He wants to remove the cameras and the NVR and the Monitor.
I am about to start reading your links re camera 3849H-AS-PV, and then I can make a decision based on the cost of better cameras.
Could I use my computer to drive the cameras?
 
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If the UK has any sort of contractor or business bureau (like BBB.org here) or license board where you can post how poorly the vendor responded to your issue I'd be sure to give them a scathing review.
The sad thing is at first I thought he quite good - I actually gave him aa good review on Trustpilot:smash::smash: In my ignorance ........! I may visit Trustpilot again and amend my previous comments. I have been in contact with an organization call the Citizen's Advice Bureau, and they have some standard words which they give you to use before they invoke the Trading Standards people who will see all the info, emails etc.But I will contact them again on Monday next.
I don't fancy these jokers coming back to rip out the cabling when they remove the stuff,and causing all sorts of damage to my property.
 
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But you fiddling with the image settings could be what caused it.

Any camera, even crappy 8MP on 1/2.8" sensors can do ok in the daylight.

At night, that sensor needs a ton of light. And the piddly LED white lights on those cameras are not powerful enough to provide enough light to get an image.

It honestly may be better for you to take them up on that offer to remove those cameras and give you a refund and buy better cameras.


Here was a thread of someone burned by an installer with the 4MP version of that camera. You can see how bad this was performing at night - the same issues you are experiencing - works in day and not at night - well 8MP would be twice as dark as these images and probably why you have black images:

Dahua TIOC camera does not recognize the IVS rule at night, original support is at a loss...


We hate to say it, but we see way too often these "professionals" providing cheap @$$ crap. Here is just a sampling of people that came here after being burned by a "professional" that provided them with the wrong system or a ridiculously high quote for cheap cameras and they replaced cameras based on our FREE suggestions and then started capturing what they wanted:

Human / Face detection


Storage Expansion - X54A5L


Got an installer quote - recommending Lorex


Eyeonet, anyone?


Camera upgrade.


Help newb here with a messed install looking for help.


Has anyone heard of Eclipse Cams/NVR?


The Dahua TIOC camera etc link problem sounds familiar especially the"support" from Dahua. Also, two of the house cameras have responded to increasing the illumination, and the images are excellent at night.

Regarding logging in to the NVR via a browser could I do the same for the cameras, as I have the IP codes?
The Camera encoding untouched by yours truly.The quality is 4, and the I frame interval is 2 seconds. From what I picked up, the bitrates are too high, but I don't know about the I Frame intervals.
The display res. is 1920x1080 VGA/HDMI

Camera encoding.JPG
 
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These show the cameras and their ports.
 

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You shouldn't make any changes to the cameras in the NVR, but rather the actual camera GUI.

You don't have to hide the IP addresses as those are the same for everyone.

Slide the slider at the bottom of that 2nd screen over and you will see an "e" logo - select that and that is how you login to the cameras (same user/pw as the NVR unless the installer did something weird):

1731862392406.png
 
You don't have to hide the IP addresses as those are the same for everyone.
Yes and I'd be more prone to redacting the camera serial numbersthat are visible than those private IP's. :cool:
 
Yes and I'd be more prone to redacting the camera serial numbersthat are visible than those private IP's. :cool:
errrr...Thanks for that guys. Have you any comments about the Encoding settings?
also to wittaj : I don't have the same format as you on Camera/Camera list/Camera List - the last title on the bottom row is SN, and there is no header for browser. As for the 37777 ports ,these two are for the garage cameras via the wireless bridge.
 
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As for the 37777 ports ,these two are for the garage cameras via the wireless bridge.
That's because they are on the LAN, not on the NVR's private server and different subnet for cameras on the POE ports.
 
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So that is not a cause for cocncern.


"The only true wisdom is in knowing you know nothing." - Socrates.