Tag: CCTV

If the security cameras would not have been there it would have been extremely difficult to interrogate any incident. It keeps a vigil on all the persons visiting a particular place and keeping the security personals informed about their various activities. A Close Circuit Television Camera can be installed anywhere easily without the knowledge of common people. If required they can record the conversations too. Different varieties of security cameras are available in the market for different purposes at different rates. Obviously to monitor a large area like railway station or market place you need high resolution cameras which are capable of covering a large area. Generally these days, small Security Cameras Systems are installed at different places and they are connected to a security server room where the output of all cameras can be seen on one single monitor.

Different varieties of cameras are now available in the market. With the technology becoming more upgraded high resolution cameras are also accessible. These cameras give clearer picture and can record the video for longer period of time. The cost of installation is also low. Cameras are even available for small shops such as jeweler’s shop, bookstores, cafes, and even in some homes. Elderly people and home makers generally stay alone during the afternoon. In such cases it becomes essential for them to install a CCTV in order to protect them from the robbers who become active during this hour. They barge into the house forcibly and take away all the cash and valuables by taking them as hostages. Obviously it is better to remain on the safe side than to face the worse.

It has become very essential for everybody to remain safe and secure with the increase in the crime rate day to day. Incidents like terrorist attacks, robbery, stealing, and smuggling of goods, killing and snatching of valuable items have become very common vandalizing the national property and threatening the people. By the time the police and investigating agencies reach the spot everything is already ransacked. They enquire about the whereabouts of the incident to the eye witnesses and the collected evidences. But the most trusted witness is the security cameras if that spot has one. They perceive carefully and minutely at the recordings of the camera and then plan their further strategy. So it is very vital to install the security cameras systems at places which are very delicate from security point of view. Security camera systems make the task easy for the police to search and collect the evidence and proceed in their evidence.

About Author : Saymon Scott is a technology expert. His researches on the security cameras systems have been used widely in homes and offices. For more of his updates on the latest security camera systems visit the website:

If you are looking to install security cameras in and around your house or business, the first question that comes to your mind is what type of camera you should install. Is an IP network camera the best choice, or should one opt for traditional, tried and tested analog cameras? To make the right decision you need to seriously look into the advantages and disadvantages of both and come to a fair conclusion.

The major difference between the analog and IP camera is the way in which the video signals are delivered. IP network cameras digitize the video signal using a specialized encoder that connects directly to IP networks and allow users to view, store and analyze full motion video from anywhere on the network via a standard web browser.Analog cameras turn the video signal into a format that can be received by a television or other receiver, such as a VCR or monitor.

Pros of IP Cameras

Better Wireless Reception-IP cameras are highly secure and encrypted and also need authentication for access. These cameras also have a greater field of view, and, being digital, no unnecessary conversion is required. So image quality remains high even when transferred over the network.

Ease of Installation No extra wiring is required as you can use the existing network wiring within your home. This can make the installation task much easier.A built-in gateway separates internet cameras from the regular data network so the influence of video recording on bandwidth is minimized.

Remote Accessibility-IP network cameras connect directly to IP networks and allow users to view, store and analyze full motion video from anywhere on the network via a standard web browser.IP cameras are better suited especially for remote surveillance needs.

Real Time Event Recording The IP camera system is more efficient as it records events in real time and provides alerts in case of any suspicious activity.

Extended Range -It is easy to extend the range of the security camera cabling long distances using IP, or internet protocol. This can be achieved using routers and switches.

Cons of IP Cameras

Higher Price-The prices of IP-based cameras are slightly higher than analog cameras due to the additional technology built into the camera. There are many lower end, low resolution IP cameras that are low in cost. But high-end IP and megapixel cameras are very expensive, and the disk storage required for higher volumes of video data also significantly increases the expense.

Higher Bandwidth Required– IP cameras require more bandwidth than analog cameras.

Pros of Analog Cameras

Cost -Analog cameras cost less thanIP Cameras. The cost advantage of analog recording is especially true for users who already have a legacy coaxial or UTP wiring in place and do not need to install a large number of cameras (analog cameras require a lot of wiring, which can be expensive and disruptive in terms of site modifications).

Larger Variety -There is a huge variety of analog cameras in various sizes and shapes to choose from.The analog cameras allow you to mix and match camera equipment, thus saving a lot of money during repairs.

Cons of Analog Cameras

Investment Cost for Security of Larger Areas- Installation costs over large areas are exorbitant. The number of monitoring stations is limited as the investment needed to repeat costly switching infrastructures is steep.

Cabling -Adding more network cameras to the system is very difficult because each camera requires its own cable. Image quality is also lost when long cables are used.

No Real Time Recording-Traditional CCTV systems record events that can only be viewed after the event has occurred.

Advanced analytics is one of the outstanding features ofIP video camerasthat simply cannot be matched by traditional analog CCTV systems. It offers so many advantages that this feature alone can often justify the IP solution. When weighing the pros and cons of analog and IP cameras, the decision ultimately comes down to your specific surveillance needs. Once you make an accurate assessment of your requirements, the decision on which camera type to go with will become much easier.

Huge selection of CCTV cameras available on the market, and from their proper choice will depend on what you will create on-screen security system.When buying you can rely on a good salesperson and pick camera on his advice basis. But on the other hand, often companies do not sell what client really needs.Instead they would sell surplus and unwanted equipment, and products at more expensive price. If you do not like when you wereripped-off, you will have at least slightly to make sense of what are the surveillance cameras and what parameters they are characterized.

For ease of installation, video surveillance cameras made with different design. Common type of surveillance cameras are conventional cameras.They are installed with brackets on horizontal surfaces such as ceilings. To install security cameras inoutdoor, wet locations a protective outdoor housing need to be installed to protect camera from rain and cold weather conditions.CCTV cameras apart from its own primary function, they perform they work as scare away the villain.

Mini compact cameras may have a different shape (cylindrical, oval, rectangular, etc.). Some have size of a cigarette lighter. Often used where necessary to keep the interior design or not lure attention.Open-frame cameras in small sizes that can be embedded in a suitable enclosure. Most often used to conceal the installation, or installation of a thermal compact. Due to lack of housing, such cameras are cheaper than conventional.

Spy cameras often just look like a protection or smoke detector. And used mainly for cover video surveillance. Street cameras are designed for installation in street criteria. These cameras have a sealed enclosure with heater, sun visor, and often only built-in infrared light.The cost of street cameras consistently lower than the cost of similar conventional camera, placed in outdoor housing.

Resolution of a surveillance camera is measured in TV lines (TVL). Considered average resolution 420 TVL, and the highest resolution – 700 TVL.The highest resolution is required when necessary to distinguish small details, for example, license plate, numbers on the bills, the numbers of machines, etc.

Another important factor is light sensitivity (low light). It is measured in Lux and characterizes camera’s ability to “see” in insufficient light conditions. The smaller the Luxon the camera, the better picture gets at night. Black and white cameras have better sensitivity in the dark. Normal sensitivity for black and white cameras is 0.05 Lux, for the color it is 0.5 Lux.

With regard to certain vendors, it is considered that the European, South American and Japanese cameras are better than Asian (China, Korea, etc.). Although, the ratio of cost and quality of Taiwanese cameras is ideal for most suppliers.

With so many choices of surveillance cameras in the market, it is easy for a consumer to get overwhelmed in choosing the best security camera for their system needs. No matter what type of surveillance application you are installing, there are some basic things that all consumers should consider in order to make a good choice. This will be the first of a series of articles to help guide a non-technical person that is researching the purchase of a surveillance system. The main topic for this first article of the series is security camera resolution.

It is important to know what resolution means when shopping for a surveillance camera. CCTV cameras have a resolution range from 330 TVL (television lines) to 600 TVL. For color resolution, CCTV cameras max out at 560 lines, however you can get black and white CCTV surveillance cameras in 600 TVL. IP security cameras are now available in much higher resolution, up to 5 megapixels. What does this mean?

In the United States, regular TV transmission (not high definition) displays 480 lines of resolution. So it is possible to purchase CCTV cameras that can record equal to or greater resolution than TV. Obviously the higher the resolution of the camera that you choose, the more detail you will see in your surveillance video. High definition television (HDTV) displays either 1080 or 720 lines of resolution depending on the channel and the type of HDTV that you have. In order to get higher resolution from surveillance cameras, the only choice is IP based megapixel cameras, which connect over an IP network instead of a closed circuit. Generally, IP mega-pixel cameras are much more expensive than CCTV cameras. For high end applications that demand ultra-high resolution, megapixel cameras can capture surveillance video at more than twice the resolution of high definition television.

Some people that are shopping for a security camera are unrealistic (because of their lack of experience) about what a surveillance camera can capture (especially CCTV cameras). I will go into more detail about lens types and sizes in the next article in this series. I must touch on it briefly now as it is so closely related to resolution. For this example, we will use a 3.6mm lens which gives you about a 90 degree field of view outward from the lens. Some people think that if you take a 480 lines of resolution camera with a 3.6mm lens that you will be able to get a clear picture both of an object that is 20 feet away and an object that is 80 feet away. This is not true. While the 3.6mm lens will easily pick up the object in detail at 20 feet away, it cannot pick it up at 80 feet away also with the same 3.6mm lens. In order to pick up the object at the further distance, you have to either use a larger lens that would make the image appear more close up or use a high end megapixel camera that would allow the operator to zoom in digitally without distorting the picture. Digital zoom is possible with high end megapixel cameras, but not with normal resolution CCTV cameras. Because of the huge price difference between CCTV and IP mega-pixel cameras, a lot of times it makes sense to add additional CCTV cameras instead of upgrading to megapixel cameras. This will lead us into the next article which will be about understanding and choosing the right camera lens.

The Benefits of Cctv Cameras

CCTV is that the abbreviation for closed circuit television and it refers to transmitting a proof to specific monitors. The sets of monitors that receive the signal from a CCTV camera are specific and their range is limited. Unlike broadcast television, a CCTV security camera doesnt transmit the signal openly. The most common feature of CCTV is that of being employed for surveillance, and , thus CCTV security cameras are presumably placed in crowded places or places where security could be a should, like airports, banks, ATMs, military facilities, casinos, etc. A CCTV camera can conjointly be found in a corner shop or a gas station, if the owner chooses to put in one so as to confirm protection for customers.

But CCTV cameras are not limited to watching airports and banks. They will also be installed in environments that aren’t comfy for folks, or with the aim to record a process that’s observed and controlled from a management room. The conditions below which some industrial processes happen are dangerous for individuals and it’s for this sort of processes that CCTV cameras are designed. The law sometimes needs the installation of such CCTV cameras for industrial processes that take place within reactors or inside the facilities that manufacture nuclear fuel.

A CCTV camera will now be found within taxis furthermore, with the purpose to discourage violence against the taxi driver. CCTV cameras are utilized in police vans when these are on a surveillance mission.

Although their primary purpose is that of ensuring security, the CCTV security cameras have caused an on-going debate, because of the fact that they are increasingly used in public places. The issue is that a CCTV camera violates the right to privacy, that some individuals take into account a lot of necessary than their own security.

CCTV cameras where initially used within government facilities and once they began to be used outside these facilities, it had been primarily for security inside banks. However, the system has experienced such a growth and therefore the expenses of purchase and installation of a CCTV camera have dropped so much that it is now affordable and advisable for people to have their own CCTV security camera within their homes. CCTV security cameras are now used successfully in parking tons and statistics show that automobile crime was considerably reduced when the installation of such cameras. However, as way as the other institutions are concerned, the installation of a CCTV security camera has nevertheless to prove its advantages relating to crime deterring. Some communities have embraced this security system, others havent. In some cities, there are CCTV cameras everywhere, providing surveillance on estates, automobile parks, stations and thus on. In other countries, CCTV security cameras aren’t thus common because they meet robust opposition due to their lack of privacy.

Eventually it has been agreed that CCTV cameras dont have a spectacular result as far as crime prevention is worried, particularly if we take into account the actual fact that these cameras often become targets of violence themselves. However, the result on detecting criminals is the foremost considerable and the photographs caught by CCTV security cameras will be used to prosecute such criminals.

Traffic congestion and accidents are typically noticed with the help of a CCTV camera, which is part of the system that monitors traffic. The registration plates of a car are sometimes browse with the aid of a CCTV camera and also the owner is fined in case of misconduct in traffic.