Thursday, March 14, 2013

Guarding against theft using Outdoor IP Camera



Are you ever have the experience of worried about strangers knocking at your door when your child at home alone? May be every parents have this kind of feeling. Needless to say, that is really a dangerous situation when adults were not at home. Thief or evil guy may take the chance of using children’s innocent resorts to all means in order to achieve his goal. How can we parents to avoid the same thing happen again? We would like to introduce Outdoor IP Camera. The best life and property guarder of your family.

Network Attached Outdoor IP Cameras and Wireless IP Camera attach to the network just like a computer. Set the IP address and they can be viewed by a web browser. Add powerful IP software and you can create a sophisticated surveillance system. Outdoor IP Cameras are much easier to install then the older analog CCTV cameras. The cameras are all connected to the network using standard network cable. The latest cameras can even be powered over Ethernet (POE), making installation even simpler. The new outdoor IP cameras from Axis are powered by POE.
Our complete Outdoor IP Camera systems for indoor or outdoor applications include Outdoor IP cameras, servers, storage, enclosures, lenses and software; everything you need to create a working surveillance system.

That sounds simple enough but when you’re trying to choose the right Outdoor IP camera you’ll begin to notice how many different types of cameras there are:
Weatherproof IP Cameras
Wireless IP Cameras
Indoor IP Cameras / Outdoor IP Cameras


That list can be even further segmented but you get the idea. It can be a dizzying process to wade through the available choices. But, there’s a reason for all the options and in our ongoing discussion of how to find the right Outdoor IP Camera for your project I’ll be detailing the camera types and how/where they are used.

Do you have a clear mind about Outdoor IP Camera, if not, buying one and supplying a more security environment for your children .

Sunday, March 10, 2013

Analog vs. Digital Resolution – TVL vs. Pixels



One of the most confusing and difficult topics in the CCTV world is resolution. Most of us have digital cameras or video camcorders and have heard the term megapixel used as the most common comparison in resolution between various makes and models. We are also aware that a larger number means better picture quality, but many people do not know why. In the CCTV security camera world, though, most cameras are still analog and their resolution is measured differently from what we are used to.

When measuring analog resolution, a TV line does not have a defined number of individual pixels. Instead, the term “TV lines” refers to the number of discernable horizontal or vertical lines on the screen. Analog security cameras are measured in Analog TV Lines, and most of them have between 420 and 580. The higher number of TV Lines, the more information captured. These types of cameras connect to a security DVR or CCTV VCR via coaxial video cable.
Zoomed too far into a picture from a website and seen the image go from clear to a bunch of colored squares – each one of those squares is an individual pixel. A megapixel (MP) is 1 million pixels, and is a specific measurement for digital resolution that encompasses the area of the output video.

Example: If a camera outputs a signal that is 1280×1024 pixels, it is shooting at a megapixel resolution of 1280 x 1024 = 1,310,720 pixels = 1.3 Megapixels (MP).

The most common type of digital security cameras are IP Cameras. These, like your digital camera at home, use strictly digital resolution. They utilize a network connection to either act as a standalone device or connect to a network-based DVR (Digital Video Recorder) or NVR (Network Video Recorder). IP Cameras have fixed resolutions and are now approaching, and in several cases exceeding, 1 megapixel in resolution, on average. Many of these cameras also support POE (Power Over Ethernet), which allows them to be powered by the Ethernet cable used for network connectivity, and PTZ (Pan Tilt Zoom), allowing for remote control of the pan, tilt and zoom features, if applicable.
I hope this helped everyone distinguish the differences between Analog (TV Line) and Digital (Pixel) Resolution. We would love to know what you think of our articles, and if you have any further questions, don’t hesitate to leave a comment!

Tuesday, February 19, 2013

Setting up a Secure Wireless Network with the TP-Link TL-WR541G.

Setting up a secure wireless network with the TP-Link TL-WR541G.

During the Commissioning of Video Product you need to Setting up a secure wireless network, I share only TP-Link Make WR541G product only.
In the picture above the address bar has http://arindamcctvaccesscontrol.blogspot.com OR http://www.google.com in it. Just replace all of that with the internal IP address of your router. By default the IP address should be set to 192.168.1.1.
You should see a box prompting you for your username and password. Enter your username and password now.
The Default Router Username is: admin
The Default Router Password is: admin

Click the Ok button to log in to your router.

Default Usernames and Passwords for other Routers
Please visit our Default Router Passwords page if the username and password shown below did not work for you.
If you can't login to your router because you forgot your router username and password, use ourHow to Reset a Router Password guide to set your router back to its factory settings.
Click the Wireless link near the left side of the page.
You should now see a new menu. In this new menu, click Wireless Settings.
In the box called SSID put a name that you make up. You will need to remember this name because it will be used to connect to your wireless network. Do not make it obvious to guess, the network name should be difficult for your neighbors to guess. If you can not think of anything, simply use your first name.

In the box called Channel, pick a random channel number. Channels make it so that you and your neighbors can use your own wireless networks without interfering with each other. By picking a random channel you reduce the chance of your neighbor using the same channel as you.

Turn on the option called Wireless Router Radio.

Turn off the option called SSID Broadcast. This turns off the broadcast of your networks name making it more difficult for other people to find your network. You do not want to broadcast your networks name.

Turn on the option called Wireless Security.

Select WEP from the Security Type drop down box.

Select Open System from the Security Option drop down box.

Select Hexadecimal from the WEP Key Format drop down box.

Put a dot into the Key 1 radio button.

If you are using WPA
Now you need to make up a passphrase.

Your WPA key can be a plain text, human readable sentence. Make sure it is long, however, because recent hack attempts have exploited short WPA passphrases. Your WPA passphrase should be at least 30 letters long.

Onnce you have made up your passphrase, write it down somewhere. You will need it at each computer that you are going to connect to your network.

If you are using WEP
Now you need to make up your network key.

It doesn't matter what this key is, as long as it is random. A network key is a password that is 26 characters long, and made up of only the letters A,B,C,D,E,F and the numbers 0,1,2,3,4,5,6,7,8,9. If you are using 128 bit WEP, then your key must be exactly 26 characters long, and the more random it is, the better it is. Here is an example of a random 128 bit network key:

7F5B3FD23A8EC290AC682DF8FA

Onnce you have made up your key, write it down somewhere. You will need it at each computer that you are going to connect to your network.

Now put the key you made up in the box called Key 1.

Select 128bit from the Key Type drop down box.

When you're finished, click save near the bottom of the screen to save your changes.

And that's it! You're done!

Saturday, February 16, 2013

CCTV Time Lapse Recorder ?



A Time Lapse recorder is one of the most important components of a surveillance system. Time Lapse recorders are highly durable recording machines made to operate 24 hours a day 365 days a year using standard VHS tapes. These professional recorders are made with the finest quality parts and industrial decks. Some of their main features are event reordering, super fast time and date search, time and date generator and real time recording. Time Lapse recorders have the recording capability from 12 hours to 1280 hours. Time Lapse recorder can be triggered by an external alarm, which will cause the unit to switch to recording mode.

Thursday, February 14, 2013

Arguments against Video Surveillance



As the use of CCTV cameras increases across the United States and globe, so does the debate over their numbers and motives. In a previous post, Arguments for Video Surveillance, we looked at four arguments for video surveillance. These arguments included peace of mind, loss prevention, crime deterrent, and crime solving.
But what about the other side of the fence? The ACLU has an entire Web site, You Are Being Watched, devoted to the “high costs of camera surveillance systems, both in terms of money and civil liberties,” and there are a large number of individuals and other groups out there that oppose “big brother” watching our every move.
So, what are some of the arguments against the use of CCTV surveillance systems?
  1. Invasion of Privacy – This is the most common argument against surveillance systems. While video surveillance is more commonly accepted in public areas, this sentiment comes into play with the use of covert and hidden cameras in almost every case.
  2. Mistrust – The use of security cameras in your home or business can make its occupants feel mistrusted. If your family members or employees are under constant surveillance, there is likely to be hostility and animosity in the air.
  3. Not Proven Effective – Studies done in California and London have found that security cameras had little to no effect on reducing the crime rate. With an increase in the sheer number of cameras in many large cities, many replacing human security guards, this is a strong argument that will be the main target of many opposing groups.
  4. Misuse and Abuse – The footage captured by CCTV cameras becomes susceptible to abuse and misuse by those who have access to it. For instance, the footage can be used to discriminate against people and for voyeurism. In the age of the internet, this is another huge deal, as can be seen by all of the “hilarious” YouTube videos out there. I doubt the subjects would find most of them as funny.
All of these reasons are valid arguments against CCTV surveillance. There are many cities and countries that have massive surveillance systems, and we will likely see a large increase in public monitoring in future, so the more the public knows about the industry and their rights, etc, the more everyone can prepare for when it happens in your little corner of the globe.
Do you have any additional arguments against the use of security camera systems? What are your thoughts? Will you fight them, or open your “public” life up willingly to being observed? Let us know – we’d love to hear from you.

Saturday, January 26, 2013

How fiber optic cabling combined with PoE converters allows long-distance IP camera placement



Power over Ethernet (PoE) technology enables powering IP surveillance cameras through the transfer of DC electrical power along with data over standard unshielded twisted pair (UTP) cabling. This cabling connects to a network device through an RJ-45 port that injects the power from power sourcing equipment such as a PoE switch or midspan PoE injector. PoE provides a flexible and convenient means of powering devices that are located in out-of-the-way locations, and saves money by eliminating the expense and difficulty of direct electrical wiring. A challenge with PoE is reaching remote locations outside the distance limitation of UTP cabling. According to the TIA/EIA 568-5-A standard for category 5e cable, the maximum length for a cable segment is 100 meters (328 ft), and PoE power injectors or midspans do not increase the distance of the data link.



So, how do you get beyond that 100-meter limit? Once answer is through fiber optics. Fiber optic cabling is an effective method to overcome the distance and bandwidth limitations of UTP, and media converters are a commonly used to integrate copper network equipment and fiber. Since DC power cannot be conducted over fiber, PoE media converters are the solution to extend network distances via fiber to remote IP cameras. A PoE media converter converts the fiber to copper, and sends DC power to the camera over the UTP cabling.

How PoE Media Converters Work
On the main article image/PoE schematic that appears at right, an Ethernet switch with RJ-45 ports resides in a control room or data closet. The copper UTP cabling is converted to fiber with a standard media converter. The fiber is run a long distance to the PoE media converter located near a convenient AC or DC power source, where it converts the fiber back to copper UTP. The PoE media converter also functions as a power-sourcing mini switch, and injects PoE (DC power) over the UTP cable. At the other end of the UTP cable is the IP camera, located up to 100 meters away from the PoE media converter.
PoE media converters are available with Gigabit Ethernet and Fast Ethernet data rates and can support PoE (15.4 watts) or PoE+ (25.5 watts). PoE media converters function like PoE mini-switches, and are available in a variety of multi-port configurations, including dual RJ-45 and dual fiber ports. They can support fixed fiber connectors or small form pluggable transceivers.
To understand those power specifications, it’s worth knowing that in 2003, the IEEE ratified the 802.3af PoE Standard. That standard provides up to 15.4 watts of power per port. Late in 2009, the IEEE ratified the 802.3at PoE Standard known as PoE+ that provides up to 25.5 watts of power for each port. PoE+ can be required to power IP cameras with Pan-Tilt-Zoom (PTZ) / Speed Dome Camera capabilities, and weather-hardened cameras used in cold environments that feature blowers and de-icers.

Leverage the Benefits of Fiber
There are several solutions available to extend the distances of PoE network links, including LAN extenders that convert Ethernet to DSL, UTP to coax converters and wireless technology. When you’re going long distance, however, fiber optic cabling provides several advantages over these technologies.
Unlike copper, fiber extends network distances up to 87 miles (140 kilometers) per link with no data deterioration over distance (signal deterioration is to be expected in copper cabling). LAN extenders can only extend network distances about 3,300 feet, but a data rate of 100 Mbps can drop by 70 percent at longer distances.
Fiber cabling provides security benefits as well. It is a secure medium that generates no electro-magnetic emission and is very difficult to tap. Fiber is also very reliable because it is not susceptible to electrical interference, or data loss due to temperature or atmospheric conditions.