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1337.807

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Posts posted by 1337.807

  1. Posted

    Just been with the Samsung guys today, the current front end recommended is the ssm software and the current NVR srn1000, for bigger camera system they are recommending an i7 processor pc- would suspect that if just 6 cameras then an i5 may be fine.

     

    You could go i5 but you need to configure the stream settings of each camera because it eats a lot of process even you are only using 6 cameras. If you are only using 6 then go for srn-1673s or 873s. They come with a built-in poe switch port at the back and can support full 2mp@ all channels

  2. Posted

    Can any body suggest a really good quality HD IP Poe camera around the £100, Samsung are so expensive, are Hikvision cameras any good, I am trying to get the best picture quality at a reasonable price, I have decided to purchase the Samsung NVR SRN-472S recorder, please help a novice

     

     

    The NVR can support HIKVision cameras. Hikvision cams are reslly good and they are cheap nice quality too to be honest. There are Samsung cameras that comes cheap now a days but stripped down, they are expensive because the design typically is install and wait till it breaks in the next 6 years, we do have clients who are so satisfied because since the day we installed it we have never encountered trouble since. Get the Lite series but if you still find it expensive then go for HIKVision cameras again they will work since both manufacturers are serious with OnVIF compliance.

  3. Posted

    Even if it's ONVIF it doesn't mean that it supports ever function. Typically they only go with continuous recording or what the camera can give to the NVR. Did you try updating the camera firmware? Wireless isn't reliable as it looks better go wired like that guy said, I agree with him. You should have gone with a Samsung camera to get things on the same picture or a different camera manufacturer who is serious about compliance.

     

    Have you tried to manually add the camera instead of auto.search?

  6. Posted

    How about the lifespan of the wire or when the switch fails for some reason? the ports and stuff? Yeah I think centralized power and less wires is great but I guess lets just say security matters not installation.

     

    Because to be completely honest I don't have any problems with PoE switches at all trouble is when the switch fails or a port fails.

  8. Posted

    Can you please explain to me the true function of RoI and how it looks like? Does it work like this? I have a camera lets say 3MP then I focused it at 6 doors, now I want to record the 3rd door only without touching or adjusting the lens. Is that how RoI works? I'm kinda confused because I saw one that it's RoI actually just blurs the area that is not selected but records the whole area.

     

    Can you post pictures too?

  9. Posted

    There should not be any reason that the PTZ control should not work, as long as the network can transmit and receive data transparently from both ends (pretty much any standard network connection should do this, unless specifically configured otherwise).

     

    In the analog PTZ world, control data was carried by a separate set of wires from the video; in the network world, it's all simply data being carried back and forth on one cable.

     

    so in other words it will work in a Cisco Smart switch... I always rely on the product documentation because they will tell if it wont work on this kind of setup. I am really concern about PTZ working over fiber optic.....

  10. Posted

    I have a good question. Okay here is the set up we have Network PTZ cameras and we are going to connect them using fiber optic switches, we are going to use Cisco Smart Switches to be precise Catalyst Series 2900 with 2x SFP slots. Now my problem is the PTZ Protocol. Will the PTZ signal pass to the Cisco switch? Because someone informed me that Cisco and Pelco has something that they are sort of connected to them and the PTZ function might not work so I am concern about the protocol stuff. Can I control the PTZ function if I am going to use a Cisco switch? We are going to use Samsung Network PTZ cameras.

     

     

    Thank you again guys!

  11. Posted

    For cat5 you can use any switch to extend the 100m limitation.

     

    Uhm we will us Cat6 cables since we are going to deploy them outdoor. Yeah I'm thinking of using switches but will use like may because the cameras are scattered all around the complex and they are in a perimeter. To add the cameras are PTZ... So I'm looking for alternatives like extenders but if I cannot find and I reach my deadline then no other choice we'll use switches and lots of them

  15. Posted

    Hi all have tried to connect dvr to net on 2 pc,s(not at same time) both keep getting socket error,

    any ideas please,

     

    thanks

    jw

     

     

    Define exactly how does your connection setup look like? Like are they on a switch, router, etc... All I can see if I understand your question correctly is that you are trying to connect your DVR to the internet and you want to access the DVR on a PC? At this point is it has something to do with port forwarding.

  16. Posted

    In looking at your previous postings, I was thinking that the camera locations were inaccessible for cabling directly. Since then, you indicated that you would be cabling the cameras that were under 100 meters, but not over.

     

    If you are just considering the Ethernet cabling limits, and could get cable to the farther cameras, there are some products to consider over wireless.

     

    Take a look at the Veracity Outreach, http://www.veracityglobal.com/products/ethernet-and-poe-extension/outreach.aspx , these can extend your Ethernet cabling beyond the 100 meter limit, or look at DSL-type extenders, these can go 1000 meters+ over CAT3 or 5 cable, at high data rates.

     

     

    I see an ethernet extender that works like a repeater but more than of a repeater its like a switch type repeater. To be honest I am thinking of this one that you suggested a switch like repeater but I don't know the name. Now I'm learning much from you! According to the product documentation it can extend another 100m from the limit. What do you think if I use 3 of this linked together will that work? or for example I will group the locations like 3 cameras connected to a PoE Switch then an extender going to another PoE switch, I'm thinking that it will work. I will upload a related drawing for you and my new design with the extenders applied. By the way I also saw a Ethernet to Coax I was thinking of that may work too but I'm concern about the signal being transmitted incorrectly for data like I'll access the camera built-in utility not working over that kind of extender. What do you think?

     

    Oh by the way I didn't mention that the cameras that we're going to use are PTZ's....

  17. Posted

    Niel here are the things you need for you to access the device in your PC using the software(I'm sure that this one is compatible with the Smart Viewer and the Net-i viewer CMS software) or accessing it using your web-browser.

     

    .....

     

    You need a Crossover ethernet cable to connect the PC and the DVR

    On your PC if it is an XP goto

    -Start>Contol Panel>Network Connections(if you are on classic view)>right-click on your Local Area Connection>Properties>Click Internet Protocol(TCP/IP)>choose Use the following address>

    Inside the IP Address box type:192.168.1.101 or any number from 1 to 254 except 100 because usually that is the default IP address of a Samsung DVR

    Under the Subnet Mask make sure that the number is set to 255.255.255.0

    No need to fill the gateway and the DNS Address because you ain't going to access it to the internet or outside.

     

    To verify that you and the DVR are connected you need to ping the DVR and use the default IP Address.

     

    If everything is set then you go to your browser(e.g. IEx, Firefox) but I recommend IE. Type 192.168.1.100 and then the authentication screen will appear the username is admin and check the manual for the password I'm sure it's 11111111 or maybe 4321.

     

    Hope it helps!

  18. Posted

    Do you have clear line of sight between all PTZ locations, and the projected AP location, and are the cameras surrounding the AP in all directions, or in a single direction that could be addressed with a 90 degree or 120 degree angle sector antenna ?.

     

    Also, be aware of what is referred to as "Fresnel Zone" interference, that basically means that you need a zone around the line of sight between radios to be clear of obstructions (at 250 Meters, and 5GHz band, that's approx. 1.8 meters in diameter at the midpoint.

     

    At those distances and bandwidth requirements, I would think that Ubiquiti NanoStation Loco M5's at the camera locations, and a Bullet M5 with an omnidirectional antenna should work fine.

     

    We decided to go wired and wireless, all cameras with less than 90mtrs will be connected directly to the switch and the cams that are more than 90mtrs will be connected wireless. The only thing that I hate are the marketing people at the office they told me that I am a being too good for that setup... WTF?! I'm just doing my job... I really hate them can't they visualized that I'm a newbie and I'm just doing everything I can to provid a quick solution. I asked for professional help here at this forum and personally, and yet they say that I'm pretending to be good?! Why are there such kind of people? I asked questions and see comments and other responses I'm not being a know it all kind of person. I hate that dude in the office. I hate that instead of they advise you they even pull you down and give you negative remarks. To be completely honest I feel that those guys doesn't believe in my skills. But hell look at their side they can't even tell what CMS does a particular camera uses. Grrrrrrrrrr........ You know what dude I really appreciate your help. You're being kind and doing it in a nice approach.

  19. Posted

    To really answer your question well, we need a lot more details: Is each camera getting it's own wireless transmitter, going back to a central Access Point, what compression/resolution are you using, what framerate you are trying to get, etc...You need to calculate the total bandwidth requirement to see what you will need.

     

    My suggestion for lower cost wireless gear is Ubiquiti's wireless "N" data rate gear, in the 5GHz band (NanoStation Loco M5 at the cameras, Rocket M5 with sector antenna or multiple Bullet M5's with small directional antennas for the AP(s).

     

    Under good conditions, you can get up to 60-80MBPS (per AP)total throughput on that gear.

     

    Yes they are going to have there own wireless transmitter(AP) since they're IP Cameras. Well the compression method is H.264 or MPEG4 AVC then the framerate will be set to 15 or maybe 10 and the resolution is 702x240(Half or 2CIF). In my calculations the maximum throughput of each camera is 400kBps to 512kBps(if set to the highest settings that the camera can support. I can see each transfer rate to the NVR's utility). We are going to use Samsung NVR and Neti Ware cameras. Currently one of our wireless suppliers said that this setup might fail(and I'm also afraid of that especially when it rains) the supplier was proposing for Alvarion but I prefer RadWin but the cost is extremely high!!!! We are planning of using fiber optic cables but the PTZ cameras are scattered around the perimeter.

  20. Posted

    Alright here is the setup we have 12 PTZ IP cameras and we are going to connect them wirelessly on a Network Video Recorder. Now the farthest PTZ camera is estimated to be 250m. The AP and antennas that we are going to use can reach up to 500m with a power of 18dBi. Now I need your suggestion will the video transmission be smooth or we are going to have tons of problems with it? Like latency, interference, and the environment. The area is an open field. Any of you guys tried an setup a similar case. I asked this question because we are going to use D-Link Access Points and Antennas. I am proposing RadWin but they said it's too expensive. Thank you!

  21. Posted

    hi ive got similer problem, am using a thompson st510 modem and a cnm dvr, ive fitted an netgear router inbetween and can get the dvr and internet on lan, but cant get the dvr to work over the net, am using a dyndns account

    i would be grateful if anyone may no what to do

     

    did you open some ports in the router? as you can see you are behind a router and viewing a certain host in your network requires a port to be opened so that the services on that host can be accessed. A DVR behind a router requires port forwarding, usually you can find the settings in the DVR's user manual.

  24. Posted

    Hi

     

    I am trying to learn the basics of cctv and what a description of an item means so that I can understand my needs in surveillance

     

    Best regards

     

     

    A book, browsing this forum, and going to wikipedia would help you a lot. Welcome buddy!

  25. Posted

    CIF @ 15fps constant... you don't say how many cameras, but I would expect with 2TB, you'd get at least a couple months.

     

     

    So in other words soundy all we can do are predictions on how long would it take till the hard disk fills? In summary the size of the recording in each second will depend on the settings such as Frame rate, resolution, compression method the DVR is using, record type if it's continuous or motion detect, the complexity of the scene, and many more. Do you have a computation table soundy? By experience is it ok if you share some stories ?

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