Sabtu, 02 November 2013

How to, internet based surveillance camera system?

best 8 camera dvr security system on CH DVR Indoor Outdoor CCTV Video Surveillance Security Camera System ...
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Joe


I want to make a surveillance system so that I am able to have a camera or two at my house and one or two at my office (about 1 mile away). They need to be able to see at night and perform well outside as thats where the majority of them will be.

I would like to be able to have them all tie in together so that I can view them remotely from one place, or preferably my cellphone or a laptop.

Thank you in advance for any help!



Answer
Start with a budget. Is this worth $1,000, $5,000 or more to you?

Also, since you don't seem to have any specific data network or security camera experience, you might consider hiring this out or contacting a reputable security company to do the work for you.

Being a mile apart tells me you will need two different systems. One home, one office. The biggest reason is the two different local area networks (LAN) used that will connect to the internet.

There are essentially two ways to do this.

1) Analog cameras connect to a DVR, the DVR connects to the LAN.
In this scenario, there are two options. One has the DVR being accessed remotely so there are data network security and segmentation issues to deal with otherwise the video data could easily overwhelm a poorly designed network. The other has the video being sent to a "service" - most of the manufacturers have this - and to see what your cameras see, you log into their network.

2) IP network based cameras are on a LAN. The camera views are accessed remotely so there are data network security and segmentation issues to deal with otherwise the video data could easily overwhelm a poorly designed network. If video is to be stored, then add in a computer of appropriate horsepower and hard drive size to store the video.

In all cases, be sure to add a battery back up system that powers the cameras, DVR, router, hubs switches, computer and whatever else is associated with the security camera system. It would be silly to have a "power outage" cause a security camera outage.

Cameras rated for outdoors, with night vision (infrared emitters) will cost a little more than small indoor type cameras. At the consumer grade level for analog cameras (that connect to a DVR), plan to spend at least $150 per camera. Lorex and Swann make decent ones. If you need "vandal resistant" or decide to go with IP based cameras, expect to spend around $2,000 per camera. Pelco makes good ones. If Pan-Tilt-Zoom functionality is required, the camera price increases to around $3,000.

The DVRs at the consumer level start at about $400 for a decent 4-channel system. You may need to add a hard disc drive if the one included is not large enough. An 8 or 9-channel DVR weighs in at around $650. A good Pelco DVR will be in the $5,000 range.

There are several more permutations, but the gist of this explanation is that your simple question does not necessarily have a simple answer.

Which home security is the best to use and which is best rated?




Kandy


Which home security is the best to use and which is best rated?


Answer
Hello

Alarm system are outated a CCTV camera system does everything an alarm system does and it will pay or itself because there are no monthly fee's, plus you can view your property from anywhere in the world in real time using an i phone, android or PC.


http://www.ascendentgroup.com/home.htm

Here is a write-up that explains IP, analog and Hybrid CCTV systems and the pros and cons of each.

http://www.ascendentgroup.com/home.htm

Many people have a misconception that IP has Superior scalability then Analog but with the advancements of DVR's this simply isn't true, with our X3 DVR you can monitor up to 16,000 cameras using our Central management Suite each camera could even be from a different DVR and a different site.

What is the Advantage of IP?
Many of the so called advantages of IP simply don't hold water in the real world, IP is mainly Hype and marketing and outside of a few niche applications such as 1 camera installs, where MP cameras are needed or large scale wireless projects which represent about 2% of the total CCTV market, IP has very few advantages compared to analog based on performance, cost and reliability.

Analog transmits over the internet faster and uses less bandwidth this allows you view you cameras in real time and control PTZ cameras, IP has to much lag and latency to do either properly as it has to transmit and receive video over the network.

IP or Analog why choose ?
What Ascendent Technology has done is allowed our X4S standalone DVR's to work as IP servers to convert analog cameras into IP cameras ( 4/8/16ch) in a U1 or U2 rack mountable case. Its the best of both worlds a standalone DVR that works autonomously with storage, playback and search, with the features of IP cameras to distribute video over networks and record on NVR's making a humongous CCTV system powered by Ascendent's Tri-fusion platform. ( Ascendents oes not charge for their 64CH NVR/Client software )

Scalability and flexibility
Ascendent's standalone, PC- DVR's and IP cameras can record at one resolution and stream at another, its integrated VBR and CBR lets you manage the amount of data and bandwidth that is used by each camera individually giving you the security and reliability of analog with the flexibility and interoperability IP to offer unlimited expandability by adding 1-64 cameras at a time. Ascendent's X4 Trifusion platform integrates the X4 PC, X4S standalone DVRs, X4-IP-Pro and, IP HD mega pixel cameras simultaneously. The Tri-fusion platform not only manages video but can integrate access control, analytics, biometrics, building management, NVR/DVRs, and other 3rd party applications from the leading security providers.

Cost Effective
The X4 Trifusion platform takes full advantage or prior security investments and existing wiring infrastructures while offering the best of breed technology creating a cost effective long term solution to suite the needs of small business to global enterprises.(unlike most companies Ascendent does not charge for their software you buy an IP product it will ship with our 64CH NVR server/client software)

IP cameras are usually based on CMOS
Analog cameras are based on CCD (usually)

CMOS has some significant disadvantages compared to CCD, this means CMOS
have inferior ability to cope with ambient lighting such as back light, bright, deep shadows contrasts, low light and IR this is also known as the real word.

File Size:
The smaller the files size the more images that are able to be sent and the faster they can be processed improving both FPS and speed. File size is the heart of any DVR and goes far beyond just its streaming capabilities as it also determines the recoding storage time, how much you can back up at once, how fast it renders and searches video. The file size of a DVR impacts the performance of the DVR in just about every aspect from speed to longevity and is often the most import spec of any DVR.


Most routers are not designed to handle IP cameras they have enough bandwidth but they are not able to process the amounts of commands. (9 IP cameras 30FP is 230 instructions per second) standard routers have enough bandwidth (up to 1GB) but cant handle the amount of tasks (instructions) so frames get dropped latency is introduced effectiveness of other devices such as POS, printers and data storage are affected and compromised.


IP does have applications and in some cases IP cameras are the only way to do a project but I would estimate that for 95% of applications analog is cheaper and higher performance with a lower cost of ownership and better reliability.

The best solution is using analog cameras with dvr's that have the ability to convert analog cameras into IP devices, that have on site storage so you only stream video over the network when you are viewing your cameras either LAN or WAN or to and from multiple sites.

Email: info@ascendentgroup.com
http://www.ascendentgroup.com/




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