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    Various viewing stations throughout a house?

    The BI route may be on the table. These are my present thoughts on the subject: There are hardware requirements for both. I think dedicated PC + tablets will be cheaper than the NVRs, but the savings will be fairly insignificant against the overall cost of the cameras. The more resilient system...
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    Various viewing stations throughout a house?

    All options are open. I want to work with screens I know I will have already, though. There will be a big flat screen in a communal room. There will also be a decent-sized TV in my bedroom and possibly a smaller one, high in a kitchen corner. The bar I am unsure of, I am old-school and I don't...
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    Various viewing stations throughout a house?

    I want a solution that doesn't dedicate dedicated cabling for a specific purpose. I also want something that is "plug and play" without needing to know too much. I found it complicated enough to record a TV program whilst watching another channel from a top box on a VCR. ( I could never remember...
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    Various viewing stations throughout a house?

    That is a valid point. I have seen this issue on smart TVs. Do you have a comment on sufficient resolution and screen size? I think the larger the screen and the further away the viewer, the less resolution you can get away with. Although it appears that 4K screens are the order of the day now...
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    Various viewing stations throughout a house?

    As the final design is unknown, I'd rather run a generic infrastructure that could be used for multiple purposes, so I think CAT cables and fibre fit the bill the best. Yes, I'd like a TV turn-on to be event-driven, but unless it is an off-the-shelf solution, I am not interested. I am aware of...
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    Various viewing stations throughout a house?

    Let me preface this by saying I am very much at a learning stage, so if I am off on a tangent, please let me know (gently). Some context: The goal is to have 3 to 4 viewing screens throughout a sprawling house. (Final view locations undecided, and future extensions of the buildings are...
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    LPC vs LPR - Dahua model number questions

    I am confused about Dahua model numbers for their traffic cams. Perhaps someone could guide me? I am trying to learn about ANPR, and I am afraid I might make some expensive mistakes. I have seen this model at a good price: DHI-ITC237-PU1A-IRHL And I have seen this model as well: Dahua...
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    POE question

    This a very useful write-up, so with typical POE, there is a negotiation process about the power levels ( which my particular illuminator won't satisfy) at specific voltage levels that are too high for my illuminator's supply anyway. So typical POE, POE+ & POE++ is out. So my options are a 12 v...
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    POE question

    My understanding of passive POE (which may be wrong) is that the PSU voltage supplied to the switch is the voltage that appears on the ethernet cable. But, Yes, I have heard of a "negotiating process". (POE or POE+ or POE++) There are protocol standards, not just power capabilities, so it...
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    POE question

    Sorry, this forum automatically inserts a hyperlink, so " That illuminator" is not the illuminator to which I was referring. However, you have answered my question, standard POE voltage is too high. Would a passive POE switch at 24V avoid splitters?
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    POE question

    I am considering an external 13W IR illuminator. The supply voltage is listed at 12 -32Vdc or 24 Vac. Can this be fed directly from POE, or do I need a POE 12V splitter? I guess what I am asking is, with POE, is there some handshaking protocol that needs to be manipulated by the user device to...
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    Interior Camera Recommendation

    @samplenhold, Does this arrangement allow IR to reach through your glass at night? "This is a Dahua IPC-HDBW4231FP-AS which is similar to the one fenderman listed. While it is not monitoring the inside, you can see how unobtrusive it is."
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    Smart motion detection questions 3.0 vs 4.0 vs SMD Plus

    But are they more reliably human-selective? See my first post requirement. I require PIR capability that is human selective, nor regions that are all motion selective
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    Smart motion detection questions 3.0 vs 4.0 vs SMD Plus

    To answer my own question 1: It seems SMD Plus predates SMD3.0, so it would appear that SMD Plus is to be used if SMD is unavailable on camera to achieve the best reliability. This website seems to quantify the relationship between the three. Answering question 2 ...
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    Smart motion detection questions 3.0 vs 4.0 vs SMD Plus

    I am learning more about this because I intend to trigger outside lights for humans instead of wildlife and dogs from IR-capable cameras. I believe SMD4.0 is the latest and greatest on-camera AI. I can also use limited channels on my NVR5208 EI in a mode listed as "SMD Plus" in the specs. 1...
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    The PTZ we wanted? Maybe?

    It was the tracking capability of the SD4A216DB-HNY I was enquiring about from Andy. And that was his reply, so yes, I am taking it as the 2MP model. The way I see it, it has more zoom than the 64mm fixed cam at 2MP on the same sensor at a similar price. So the PTZ function is practically free.
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    The PTZ we wanted? Maybe?

    Andy says: It has the same tracking as the SD4A425DB-HNY, so I ordered one immediately.
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    The PTZ we wanted? Maybe?

    It would interest me if this model had decent auto-tracking and a good review/price point. I'd take a few.
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    Problem with Dahua IPC-EBE81242-AS-S2 12MP

    It should be powered up. Your PC should have an IP address of 192.168.1.XXX, where XXX is not 108. Type 192.168.1.108 into your web browser address bar. It should respond. If it doesn't respond, other than repeating the procedure, I wouldn't know further.
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    Problem with Dahua IPC-EBE81242-AS-S2 12MP

    Yes, there is a reset button. Take off the back. Press it whilst the camera is powered on. I held it for 30s, shorter may have worked, but that is what I did, and it defaulted to 192.168.1.108. From there I could change the IP address and gateway to suit my home network. Edit: I bought it used.
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    Dahua NVR - Selecting playback video from timeline jumps randomly (VIDEO)

    I experience similar behaviour with the latest NVR 5208 E/I.
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    Multiple 8 Channel NVRs vs 1 32 Channel NVR. ( Or go for a higher spec altogether).

    Thanks, I know that, but I don't have a feel for it. It would seem that the older 80Mbps NVRs max out at about three 4 K cameras in terms of bandwidth. The new EI NVRs are 384Mbps max, so I'll still push the envelope with a 32-channel NVR. Even though I will have 60% of 4K cameras (as...
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    Multiple 8 Channel NVRs vs 1 32 Channel NVR. ( Or go for a higher spec altogether).

    Thanks, you have helped me a lot in my understanding of a system.
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    Multiple 8 Channel NVRs vs 1 32 Channel NVR. ( Or go for a higher spec altogether).

    For clarification, I take this to mean I can control 8 PTZs from 24 spotter cams with a 5x32 EI NVR?
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    Multiple 8 Channel NVRs vs 1 32 Channel NVR. ( Or go for a higher spec altogether).

    The broad plan would be to: Use the internal camera SMD AI of the spotter cams to trigger various PTZs to move around on a 32-channel NVR. It would appear that my intended spotter cameras have this capability. I presume the control of PTZ cameras from this distributed on-cam AI would invoke the...
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    Multiple 8 Channel NVRs vs 1 32 Channel NVR. ( Or go for a higher spec altogether).

    So a 32-channel NVR would allow me multiple spotter/PTZ combinations. I could then assign all my PTZ streams (sans spotters) to my existing 8-channel and distribute this HDMI cable to remote screens. The PTZ NVR would be a de-cluttered visual summary of events. Yes, I think this suit my needs...
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    Multiple 8 Channel NVRs vs 1 32 Channel NVR. ( Or go for a higher spec altogether).

    Alternatively, can a single camera be assigned to more than 1 NVR? In other words, could a PTZ and the associated spotter cams actually be on the same NVR, but that same PTZ's stream be viewable from a different NVR? Assuming the PTZ feeds are where the action is, then I could collect PTZ...
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    Multiple 8 Channel NVRs vs 1 32 Channel NVR. ( Or go for a higher spec altogether).

    I am unsure if I came across clearly enough on my first query point. I know you can have multiple PTZs and multiple spotter cams on a single NVR. My query was can I have a spotter cam only on NVR1 that triggers a PTZ only on NVR2 if they are on the same network?
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    Multiple 8 Channel NVRs vs 1 32 Channel NVR. ( Or go for a higher spec altogether).

    Ok, so I put my toe in the water with an exploratory NVR5208-EI. I am happy with it, but it quickly became apparent I will need a lot more channels. My cameras will combine the better-respected cameras on this forum, so I expect about 60% of the channels will be 4K. (I want to use DAHUA...
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    Lightning

    @garycrist, You are correct. This is why earthing wires and cables should not have unnecessary bends and coils and have minimum magnetic proximity to other metals. (IOW: don't put the earth cabling in metal conduit). The preferred path of charge to Earth must have as little impedance...
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