Javik

These are Tyco Illustra 12MP fisheye cameras, used with a Tyco Exacq capture server.

Is there such a thing as external motion tracking software for IP cameras? IP video is different from traditional analog video servers, in that the recorder is not involved with motion sensing and instead it is all handled directly by the IP camera. I have a bunch of 12MP fisheye cameras, and I have discovered that when these are used to cover a very large area, the camera's built-in motion detection is basically useless because the motion cells are smaller than the built-in detection grid of the camera, and so it almost never detects anything. I have to run these cameras on a continuous 24x7 schedule which eats disk storage space. Is there such a thing as external motion tracking software? This would essentially be a server-based software that watches a livestream of the camera, does its own motion sensing, and sends out an alarm signal that the recording server uses to activate recording for that camera. An external server-based motion tracker could have a much finer motion detection grid and have far more image processing power than an IP camera, which is limited in CPU power both by POE power draw limits and thermal dissipation of the fanless camera enclosure.

This is the camera that I am researching, that has no building corner mount from the manufacturer. But it does have a panomorph fisheye lens, is listed as Immervision compatible, and is the lowest cost, highest resolution Immervision compatible fisheye that I can find so far. I don't know how this forum feels about posting (gasp) actual product pricing.. CNB MPC1070PN 5 Megapixel Outdoor Panoramic Network Vandal Dome https://www.surveillance-video.com/camera-mpc1070pn.html/ , CNB company Tech Support says: WDB101 metal wall bracket will not work with MPC1070PN. We currently do not have the bracket for this product.

Have you tried either disabling or covering the built-in IR illuminators with black tape, so they don't light up the wall and blind the camera?

I am currently looking at buying some outdoor fisheye camers from a company that oddly does not have a corner mount bracket, even though the camera is outdoor IP66 rated. Is there such a thing as a universal corner mount bracket to hang out from the corner of a building, for a "ceiling mount" camera to hang from? It could have a bowl shaped rain cap, over the camera junction box. I suppose something could be welded together from steel rods and plates, or even just use pressure-treated wood posts, but I'm not very handy.

The ACTi E96 isn't any better. It too proclaims "The ACTi E96 5-Megapixel Vandal-Resistant Indoor Mini Dome Camera (NTSC) features a 1.19mm hemispheric fisheye fixed lens. The E96 delivers images at a resolution of 2592 x 1944." And yet this is what I can find about the actual capabilities of the E96: As a fisheye only the center circle is usable so it's actually 1944 (sensor height) divided by 2 (circle radius), squared, times pi... 1944 / 2 = 972 ^ 2 = 944784 * pi = 2,968,126 basically the same as the previous "5MP" fisheye.

It's really hard to compare different fisheye camera products when companies outright lie about their product specifications. Vivotek FE8182 Advertising: "VIVOTEK’s FE8182 is a Recessed-Mount fisheye network camera, featuring a detailed 5-Megapixel resolution sensor with superb image quality" Reality: 15 fps @ 1920 x 1920 1920 * 1920 = 3,686,400 pixels How do you get 5 MP out of that? Oh, it's because they're using a rectangular sensor and 1.3 MP of the sensor is looking at solid black all the time outside the edges of the fisheye lens view and is useless. But hey, it's a 5 MP sensor! And actually it's not even 3.68 MP, because the fisheye is a circle, and their stated resolution is for a square sensor area. The corners of the square are also permanently looking at black, and the actual resolution is the area of a circle.. pixel radius squared times pi. 960 ^ 2 * 3.1415... = 2,895,291 So this "5MP fisheye" is actually about 2.9 megapixel usable.

Well speaking in general server technology concepts, there are two forms of reliability. One is against storage drive failure, and the other is against power failure. Drive hardware failure protection is called RAID. One or more extra hard drives are used which don't store anything but provide protection in case another fails. Basic: RAID-1 or RAID-5 Good: RAID-1 + hotspare or RAID-5 + hotspare Better: RAID-6 Best: RAID-6 + hotspare Power failure protection usually involves a UPS and a communication cable between the UPS and the protected device: - When the UPS detects a power failure, the protected device continues to run on battery power from the UPS. - The device is informed by the UPS of the power failure. The device starts a controlled shutdown process so that data is not corrupted or lost. - The UPS goes into "sleep mode" to conserve battery capacity after the device turns off. - When power is restored, the UPS wakes up and powers up the protected device. This is a standard protection method against power failure for full-blown computers running a Windows operating system. However, I don't know if any of the custom all-in-one standalone DVR boxes that can also do this. It's not easy to find this information, due to the reseller rebranding BS that muddles and confuses the surveillance industry.

Please explain why a company would do this. I do not see the point of being deceptive and confusing your potential customers.

I have absolutely no idea what is going on here. I am looking for a certain new Dahua NVR, and I find this website, which has it, except they call it a "Cantek" NVR. If I search their catalog for Dahua, no results for Dahua come up, but instead I get the entire Dahua product line, renamed as "Cantek". https://www.surveillance-video.com/nsearch/?cat=0&q=dahua#/?keywords=dahua&search_return=all I'm looking for the "DH-NVR608-32-4K". They've got it except they're calling it a "Cantek CW-NVR608-32-4K": https://www.surveillance-video.com/network-cw-nvr608-32-4k.html/ And I click on the specifications PDF, well what do you know, but it is Dahua's specifications page: https://www.surveillance-video.com/media/lanot/attachments/customimport/CW-NVR608-32-4K.pdf Screenshot: What. The. Heck. ???

It is mysterious why a camera with POE would also offer Wifi capability. I assume this is because most cameras offer both POE and regular DC-only power capability. Is there a third option, where the POE Ethernet communications span length is too long (such as previously used for power and balun analog video) so the camera is configured to use POE, but use Wifi to connect instead?

Has anyone used fisheye cameras in school hallways before? These may work well in school hallways where you have kids beating each other over the head, taking things from other kids' lockers, whacking the guy in front of them while walking, etc. It's so hard to point a normal box camera in a manner that covers a whole hallway completely. , However, being a fisheye, I expect the side views are going to be a whole lot of nothing of the walls of the hall, wasting pixels on blank walls over the heads of people. The Hikvision DS-2CD2942F may be a partial solution to wasted pixels, as it apparently has more of an oval fisheye, so it can extend lengthwise along a hallway. But their documentation is very unclear about the fisheye shape. Also, so far I have not found if any sort of adjustment of the fisheye lens/zoom is possible for this model. I assume the lens is fixed? I'd rather not have to buy one, to find out how it works.

I see there are two versions of the Hikvision fisheye. The basic one is the "DS-2CD2942" and there's a youtube video of what it looks like. Apparently there is another model called the "DS-2CD2942-IW" Weirdly, Hikvision's own website doesn't show a -W option, only -I/S: http://overseas.hikvision.com/us/Products_accessries_10536_i7597.html

Is there a list anywhere of all-in-one DVRs / NVRs with RAID6 or hotspare support? If you're serious about keeping your security camera data around and surviving drive failures then you need RAID redundancy, and you need it to be able to repair itself and/or survive one or two drive failures in rapid succession. Most generic NVRs seem to be single disk or RAID-0 disk spans without any failure protection. If you lose a disk, you will lose part of or everything recorded. With RAID 1/5 there is one redundant drive. Any one drive can fail and you don't lose anything. With RAID-6 there are two redundant drives. Any two drives can fail and you don't lose anything. With RAID 1/5/6 + hotspare there are one or spare drives not used for anything. Any array drive can fail, and the controller will automatically grab the hotspare and use it to repair the array, restoring drive redundancy in a few hours. Maximum data protection comes from RAID6 + hotspares. If one drive fails and the array starts rebuilding, and then a second drive fails before the rebuild onto the hotspare finishes, no data is lost. Because 3 or more drives are used for data protection, the array costs are highest, though it is essentially insurance money paid in advance to protect against failure. For quite a while there have been generic RAID-1 soft-mirroring controllers but the implementations are often cruddy and repair/rebuild is complex and difficult. Just identifying which drive failed with these cheap RAID-1 controllers is often difficult. So looking for all-in-one systems RAID 5/6 and hotspares appears to be the best way to find the more reliable and easier to manage storage systems.

?? weird. And what happens when someone is trying to use networking wifi with that system nearby? the 2.4ghz band is so overused, that seems like a potentially very unreliable wireless video method.