SunnyKim
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Posts posted by SunnyKim
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For home applications with a rather tight budget, the conventional analog systems would be OK. Good quality Cameras should be less than U$20 each and 8 Ch DVR less than U$40. Buy a DVR that allows D1 or WD1(960H) recording for each camera. HD- Analog systems, HD -AHD or HD-TVI, could cost a bit more than the conventional analog systems. Of course, if you play a budget of more than U$100 per camera, then IP camera system.
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Good Day Guys...
I am bringing back this thread since I have a similar situation.
I have (1) DVR (16 channel) and I want to connect (2) Monitors to it, but I want each monitor to show different cameras.
For example:
I want CH01, CH02, CH03, CH04 - to show on Monitor1
I want CH05, CH06, CH07, CH08 - to show on Monitor2
While all is recording at the same time on this (1) DVR
I think this is the same scenario as the OP had.
Can anyone advise me as to how I can achieve this?
And if the Multiplexor mentioned in the above quote can really be used to achieve this?
Thanks Much!
I do not think the chipset inside the DVR would support these features that you mentioned. Though Technically not challenging, you have to understand that the chipset already utilizes 100 % of the DRAM bandwidth allowed. No more bandwidth to enable the feature, for the most of the chipsets involved.
If the cameras are analog or HD analog, you have to buy another DVR and T type camera signal splitter for feeding the camera signals to the DVR.
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You may consider to go for HD -Analog system: HD-AHD or HD-TVI, as you already have BNC cables installed. These HD Analog systems - stand alone DVR, also support conventional analog cameras as well.
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any ideas?ideally 4k MJPEG streaming at above 20fps
Price isnt too much of a concern. I have done some research however i was just wondering what the word on the street is so to speak.
Thanks
Challenging what for? Testing equipments?
How to send or record?
JPEG/4K/and 20 FPS.
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The button battery is placed for keeping the exact time for date/hours/seconds.
You need to adjust time manually when booting up the systems.
Replacing the battery does not need to reboot the systems. No troubles. Go for it.
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We are realistic about cost and the idea of paying a yearly fee for online storage. We are just having a hard time finding what seems to be dependable technology.
Does anyone have suggestions for us to continue looking? Is automatic online storage of any type, even stills, unrealistic?
Thanks - Lily and family.
On line storage sounds Fancy. But it can record as small as its limited network bandwidth,as you may experience when accessing video with your smart phone. It does not increase the bandwidth. Just buy a HDD for stand alone DVR for storing good quality video at such a low cost.
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Any analog cameras would fit, if B+ means Power (Battery) Plus.
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The addition of two 720P highly likely over-loaded the CPU.
You may Reduce the number of frames for recording the 720P, or use sub-streams for live view.
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I know the dome cameras can be mounted on the wall and ceiling, what about just sitting in a windowsill? Would the picture be upside down or anything; or would it depend on the camera, if you could move the lens?You may not need to worry: There are options for Horizontal Mirroring or Vertical Flipping video images on Cameras or DVRs.
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Sunny I do appreciate your assistance with this issue.But can you explain to me how you would "Verfiy the translation one on one, each camera vs the number".
Sorry, but I think I'm missing something here that you are trying to explain to me.
Cheers
For each mode(recording/preview/remote view of recording/remote view of preview), write down the camera number displayed for each camera.
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Verfiy the translation one on one, each camera vs the number. Find out which camera is missing or its number assigned for each mode.
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Could be a software bug? Translated to Camera 0 ~ Camera 15 from Camera1 ~16.
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IP camera could cost more than U$100, a piece, letting alone the software cost. I would recommend HD-Analog cameras of HD1080P resolution, costing less than U$40, a piece and with its corresponding DVR.
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Hi AllI have a LookC surveillance system with 4 wired cameras which is quite old but worked fine until today the hard drive has gone and so i dont have the software to reinstall on a new hardrive,Which was using LookC software.
My only thought is installing windows or ubuntu onto new hardrive and using another software.
Im stuck because Lookc is no longer trading any ideas please.
many thanks for reading
julian
It sounds analog system. Buy a new DVR Box supporting WD1/960H resolution, costing you no more than U$30, in order to save the cameras.
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hi I have no idea what power supply or cable I have they are the basic setup that comes with a SWANN camera package the DVR is numbered H.264.thanks
If getting better with two cameras plugged off, specially at night, that would mean Power Shortage.
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For home application, D1/960H/720P/1080P would be fine. I mean they are not necessarily to be IP cameras,costing more. And More than 1080P could be over-kill.Glad to see Sunny!
You start to recommend 1080P cameras
one day you will mention 3MP and more
I hope the day would come soon when all monitors we are getting, by default, at least UHD-4K or UHD-8K and as low as less than U$200.
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Sounds Confusing. Maybe it fails to play back video after recording (storing compressed bit stream) to hard disc. Be noted that Onvif cameras does not quarantee the successful playback of video stream.
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For home application, D1/960H/720P/1080P would be fine. I mean they are not necessarily to be IP cameras,costing more. And More than 1080P could be over-kill.
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I know HD-AHD DVRs support both HD-AHD cameras and anaog cameras at the same time. HD-TVI DVRs are likely to. Please make sure the HD-TVI DVR can support analog cameras and HD-TVI cameras at the same time.
With compositve (CVBS/NTSC/PAL) feed to a HDTV or UHD, you would get the limited video quality of composite. The DVR may support output of VGA or HDMI of 1080P. Please check.
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I remember seeing those in Mobotix. They are not necessarily to be 360 FishEye. Just simple 4 lens modules in a single camera, saving installation and wiring.
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Sunny may be you know
What is effective bandwidth of HD Analog signal?
What is sampling frequency of HD Analog?
Thx
I do not have the number. No worth. It could depend on the quality of the cable and distance for being applied. Last time I told you 3 Mhz. But yours were 4.5 Mhz, I recall. No use to argue about. I would give a try, assuming 8Mhz bandwidth would cheat on customers.
Everybody wishes to have more bandwidth. But destined to be limited physically. God rules. I do not think anyone would try to figure out those numbers. No pennies worth. That's the attitude for those involved. That's why I wrote "who cares as long as visual quality is accepted"
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Thank you. I understand now!Still strange that most NVR-chipset-creators skip 4mp in their standard.
But as you can see in the post above, a few have support for 4mp.
I do not know whys, either. There was a guy, Boogieman, who has promoted 4MP cameras for a quite while. He may know the reason whys? He will get you the answer if he is able to come around this forum. You may give him a bit time before you move down to 2 MP (1080P) cameras. They are supported by almost all NVRs.
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In Chinese, Hard to teach new tricks to an old dog, Poor Chinese Dog who needs to learn English at the same time.
In math, more pixels = more image detail, everything else remaining constant. And in my opinion, more image detail = better, everything else remaining constant.
Being given a new trick, consult with your math teacher, if you do not understand the concept of Frequency. More number of Pixels do not always give you more image detail. Image detail represents high frequency components when mouldated and transmitted over the cable. The high frequency component is getting deteriorated when going through a some distance over a cable. Then starting to lose Syncs which are placed on rather low frequency band. You may have noticed this in all Analog HD system (HD-CVI, HD-TVI, HD-AHD), starting to lose color components that is placed in the high frequency band. To send 1080P over some distance over some quality cable is believed to a quite challenge. How to send 3MP, 4MP, 5MP, 8MP, things? The cheat is simply blurring down details, high frequence, possibly as low as analog camera signal band (NTSC /PAL) after low pass filtering. They know it was OK to send analog camera signal relatively long distance. Who cares as long as visual quality is accepted and the price is much much lower than IP camera's????
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I guess you have been mis-lead. To record something does not mean much to an NVR. To be precise, it simply stores the compressed bit streams sent by the cameras that you hooked on. NVR plays back the videos on the monitor by de-compressing the bitstream from HDD or Network. The IP camera does compress the video into compressed bit stream, say 2MP/3MP/4MP/5MP, etc. Stand alone NVRs carry a chipset of a limited capacity to decompress the bit streams. Good chances that your NVR can not handle 4MP or 5MP cameras, unless otherwise specified.
How is this system for a residential home?
in Security Cameras
Posted
Amazon, E-Bay, Alibaba, etc are the place you can shop around. Check out Costco, Sam's, Lorex whether they have a package deal with much cheaper delivery cost. FYI, you do not have compatibility issues with analog systems. Any analog DVR supports any analog cameras. One more, select DVR that supports D1 or WD1 recording for each camera. Old DVRs were limited to CIF recording for each camera. Thus poor visual quality.