th111447

The prices for the NVR5XXX appear to be higher than the NVR4XXX. I'm not complaining but some strange. Interesting they went from NVR3XXX to NVR5XXX then NVR4XXX. Go figure! Thanks again

What does the NVR5216 offer that's better than the NVR4216? When I review the spec sheets the NVR5216 states 160 Mbps which is less than the 4216. The 5216 also states ONVIF 2.0 conformance while the 4216 states 2.3. Can anyone point out why I would purchase a 5216 versus a 4216?

So it looks my assumption is in-correct. I guess I'll have to buy another NVR if I want 3 or 5 MP cameras. Guess I will stick with the old 720p's. Thanks for pointing out the difference.

I do not have an NVR5XXX. I assume the dual core processors are the same in the NVR5XXX and NVR32XX.

I pulled up some specs from a prior post for the NVR and cameras I'm running. If you need more information let me know. I'm curious how to update the software to allow support for 3 mb and 5 mb cameras and increasing fps and bit rates. NVR-3216 # cat /proc/cpuinfo Processor : ARM926EJ-S rev 5 (v5l) BogoMIPS : 134.75 Features : swp half thumb fastmult edsp java CPU implementer : 0x41 CPU architecture: 5TEJ CPU variant : 0x0 CPU part : 0x926 CPU revision : 5 Cache type : write-back Cache clean : cp15 c7 ops Cache lockdown : format C Cache format : Harvard I size : 16384 I assoc : 4 I line length : 32 I sets : 128 D size : 8192 D assoc : 4 D line length : 32 D sets : 64 Hardware : DaVinci DM365 EVM Revision : 3650000 Serial : 0000000000000000 # exit Connection closed by foreign host /usr # cat /proc/cpuinfo machine : hdk7108 processor : 0 cpu family : sh4 cpu type : STx7108 cut : 2.x cpu flags : fpu icbi synco fpchg cache type : split (harvard) icache size : 32KiB (2-way) dcache size : 32KiB (2-way) address sizes : 32 bits physical bogomips : 494.59 HFW2100 Processor : ARM926EJ-S rev 5 (v5l) BogoMIPS : 134.75 Features : swp half thumb fastmult edsp java CPU implementer : 0x41 CPU architecture: 5TEJ CPU variant : 0x0 CPU part : 0x926 CPU revision : 5 Cache type : write-back Cache clean : cp15 c7 ops Cache lockdown : format C Cache format : Harvard I size : 16384 I assoc : 4 I line length : 32 I sets : 128 D size : 8192 D assoc : 4 D line length : 32 D sets : 64 Hardware : DaVinci DM365 EVM Revision : 3650000 Serial : 0000000000000000

I have used telnet into the NVR and that's how I know the specs. I'm curious how to modify the code to tweak the MBs, frame rates and 3 mp etc. I see some Challenge.rar file and have not had time to extract it and look thru the code.

It appears the dual-core processors and memory are the same so the current NVR3416 has the ability to run the 3 mp and 5 mp cameras but simply does not provide the interface for using. Will you confirm we are paying for software updates when we upgrade the Dahua NVR? Is this true?

Let me ask this question. Has anyone applied firmware for an NVR32XX using a different dahua's NVR firmware file. Ex. Apply firmware from NVR5xxx to NVR32XX. Considering hardware specs match can I apply firmware from NVR5XXX to get the functionality in the software? I wouldn't have a problem paying for a new NVR if it had more processing power or memory but when all the hardware specs match, it seems foolish to pay for a new NVR when theh software just needs tweaked.

Guys- I currently have a Dahua NVR3216. It appears nearly all the Dahua NVR's have the same dual core processor and I assume the memory is the same as well. I assume a lot of the NVR's have the same hardware and they are simply selling other NVR's at higher cost with the firmware updated to allow more fps, mbs and support for 3mb and 5mb cameras. Is there a way I can update my Dahua NVR-3216 so it supports 3mb cameras? I have not had time to try to poke around with the code but thought I'd ask. My assumption is the software is the only thing changing on most of these NVR's because they all seem to have dual-core processors. I'd prefer to not have to purchase a new NVR with the same hardware just to get the interface to allow the support. Any input appreciated.

Dexterash, your statements are accurate and I am assuming the 32xxx and 52xxx have the same dual core processor. I can not validate this because I do not have a 52XX and I should not have made that statement without confirming this. If anyone can confirm the processor speed in the 52xx, we will know for sure if it is better to buy the 52XX instead of the 32XX. Thanks for pointing this out and it's a valid point.

Agree!

Yep, doesn't seem like anybody can answer the tech questions on the 52xx. At any rate, if it's a dual core I think it's a waste of money to pay more for it versus purschasing the 32XX. I just didn't want to see others get suckered into paying more for a 52XX and not get any performance improvements.

zikronix- Try setting CBR(constant bit rate) to 8092 and identify what your max bit rate is on the Swann NVR. It should error at some point and tell you, you have exceeded the bit rate. At least my Dahua does at 32 mb/s. I think you should be using 8092 bit rate with those nice 1080p cams. Curious if the NVR allows you to do this.

Doesn't the NVR allow you to change the bit rate? My test was using CBR on the Dahua with 4092 bit rate. I thought to record the best quality for 1080p you need 8092 bit rate. It's obvious there are limitations on all these NVR's. It's figuring out if the NVR will meet the users needs. I jumped the gun and bought the Dahua NVR-3216 before doing my homework. I think building a system is the best route if your technical. I may start investigating using a Dell PowerEdge server with two quad core CPU's. The IP cameras are CPU bound and this would imply 8 processors. You can pick up a 2900 or 2950 on Ebay for 250 and up. I still need to research it more thoroughly and look at power consumption and disk storage but it definately has the CPU power for what I want to do. I'd like to run 12 cams full quality recording at 720p for the fw2100 cams. Eventually I'll build something but time is the issue with the job and kids.

zikronix I'm assuming you have a different NVR and not the Dahua for the Swann/Lorex cameras and it also has a dual core cpu. It will be interesting to see the results but the cpu intensity could be handled differently with this NVR. If using 720p ensure bit rate is 4096 and if 1080p ensure it is 8096 on each camear and see what happens. My statements were in regards to how the Dahua performs with a dual core cpu but I'd be curious to see the results.