It is essential to take security seriously in this modern age. It is not just businesses and commercial properties that need good security but it is our homes too. With crime increasing and burglaries very common place, it is very important to consider the available security options and choose one that is the best fit for you.
One of the most popular and cost effective ways of providing security in the home and place of work is with CCTV cameras and equipment. CCTV cameras can act as a very successful prevention to thieves and burglars, certainly making them think twice at the very least. The technology behind security equipment these days is incredibly advanced, and it is even possible to hook the cameras up to an ordinary television or computer to watch the footage.
What is CCTV?
Most people think that understanding CCTV is a some difficult, but then again, many don’t even know what it is ... so what exactly is Closed Circuit Television?
Closed-circuit television (CCTV), also known as video surveillance is a closed circuit system and all the elements are directly connected. The picture is viewed or recorded by CCTV security cameras is not broadcasted. Instead, the video imagery or simple video is recorded onto a DVR (digital video recorder) or NVR (network video recorder).
CCTV equipment can record video continuously or be programmed to monitor a specific event or certain time of day. The video can be stored for a period of time at various levels of quality so personnel can go back and examine old video.
History of CCTV:
CCTV was actually used for the very first time in the year 1942 in Germany to observe the launching of a rocket. Then CCTV security cameras was became popular for security in banks and casinos, but today they are used primarily for surveillance purposes by retail businesses, airports, restaurants, monitoring traffic and other institutions to protect merchandise and keep their customers safe. However, today as they become simple and inexpensive enough to be used for home security.
Which type of Security Camera should you use?
A wide variety of cameras are available in market today for video surveillance purposes. They have different features, styles and options and you have to find out the right CCTV security system that will depend on several factors such as whether you will use the security cameras inside or out, during the day, nighttime, or both.
Here are some tips to help you out.
1) Dome CCTV Camera:
Dome CCTV Cameras are most commonly used for indoor security and surveillance applications. The camera unit is mounted inside a transparent dome and they are both ceiling mounted or suspended from a wall mounted bracket depending on the application and the field of view required. Dome cameras are commonly used in surveillance systems inside of homes, casinos, retail stores, and restaurants. Because of their dome shape makes it difficult to tell in which direction the camera is pointing. Dome cameras are also available in mini- and micro- versions for separate deployments and are available in a range of housings to suit various architectural styles.
Dome cameras come in a wide variety of forms. Each dome security camera type provides unique features and functions. It is possible to choose a combination dome camera that offers more than one of the described features.
a) Indoor and Outdoor:
Typically all outdoor cameras can also be used indoors, but not all indoor cameras can be used outdoors. Outdoor dome cameras consist of special materials that cannot withstand certain types of weather and temperatures. Outdoor dome security cameras can withstand all types of weather and temperature. Indoor cameras are perfect for those who only need indoor protection.
b) Infrared Dome Cameras:
Infrared cameras are often called “Night Vision” cameras because they can ‘see’ at night. Infrared Cameras produce high resolution color video during the day. They contain a series of IR Light Emitting Diodes, or LEDs, that allow camera viewing in total darkness by switching to infrared mode. In infrared mode the image is captured in black and white.
However, do not confuse “Night Vision” with “Day / Night Cameras”. Day / Night cameras do not have infrared lights built in.
c) Day/Night Dome Cameras:
Most CCTV dome cameras are day/night cameras camera which has an extra sensitive imaging chip that allows it to capture a good picture in low light situations without using infrared lighting. This works well for example if there are street lights outside or an exterior light that can be left on at night. Keep in mind that cameras without infrared lighting will not capture an image with zero light. The other issue to consider is that infrared cameras require more power (more amperage). The power requirements are provided in the specs for each camera.
d) Vandal Resistance:
Vandal Resistance dome cover can be constructed of very strong vandal proof glass or plastic to prevent destruction to the camera. These cameras are used in areas where there is a high risk of people trying to damage the security cameras. These cameras are suitable places like prisons and jails or other high traffic areas where there could be vandalism.
e) PTZ (Pan-Tilt-Zoom):
Pan-Tilt-Zoom, or PTZ,, cameras move left or right, up or down, and zoom in or out. Because of the movement range, PTZ dome cameras replace the need for two or more stationary cameras. The cameras often include a feature called automatic object tracking. This means that the camera detects motion and after detection takes place, it zooms in and follows the moving object. PTZ CCTV cameras are usually large in size and 360 degrees viewing capability. They also have larger lens and components encased in large dome type housing, which makes it easier for you to scan the entire covered area and reduces the number of cameras needed.
2) IP (Internet Protocol) Camera:
Internet protocol (IP) cameras are webcams used for surveillance. IP cameras connect directly to the network with no dependence on any other device. These cameras connect to the Internet and allow the user to view the surveillance area from home or anywhere in the world where there is broadband Internet connection.
Non-IP cameras usually connect to a Digital Video Recorder. They do not have direct Internet connections, but the DVRs they connect to might have one.
Each type of IP camera is ideal for specific purposes. For example, dome IP cameras are made for outdoor use, while PTZ IP cameras provide the best viewing angles, and IP cameras equipped with infrared light are meant for nighttime surveillance. Therefore, it is important that shoppers know the different types of network security cameras.
3) Bullet Cameras:
Bullet cameras are placed inside a housing, which is generally long kike a cylinder that looks like a bullet. This housing protects the camera from all kinds of weather condition, dust, dirt, rain, hail and other harmful elements.
These cameras are ideal for outdoor use, particularly in applications that require long distance viewing. . A mounting bracket enables the camera to be pointed in the desired direction. These are used in residential places as well as commercial places.
The bullet type camera may vary in size and capability. Some of these cameras may have manual zoom lens and higher range capacity. They usually have automatic backlight compensation feature that automatically adjusts the camera’s electronic shutter to see clearly through contrasting light. They can be installed on the ceiling or the wall and they requires power adaptors.
4) C-Mount Cameras:
A C mount is a type of lens mount commonly found on 16mm movie cameras and closed-circuit television cameras. The advantage to a C-Mount Camera is that the lens can be changed. If you need to see facial detail further than 35 or 40 ft then you'll need a c-mount camera with a special lens. C-Mount lenses are available from 4mm to 100mm. A 4mm lens provides facial detail and a 70 degree angle of view focused up to about 35 ft. An example of where you might use a 4mm lens is in a small office, or at home to focus on your driveway.
How to Install a Security Camera System for a House or small office?
As IP surveillance is quickly becoming the most flexible and future-proof option for security and surveillance installations, it is important for users to understand common pitfalls, customization options and the advantages of a fully digital system.
Here are steps that security professionals can take in order to implement a successful CCTV Surveillance system.
First step of any camera installation is to make a diagram of your surveillance needs. Draw a rough diagram for your house or office. Prioritize the areas you want to watch the most, and then decide where you can place cameras. While planning for camera locations please take in consideration light condition and check out each location to make sure it is not blocked by anything and provides the best view possible.
2) Choosing a CCTV Camera
There are many CCTV cameras on the market, and it is important to get the one that will work best for your situation.
Before purchasing your CCTV camera, it is important to understand how the camera will be used and the type of budget allowed for the camera.
3) Type of Equipment Needed:
Before you can install your CCTV camera, you must have the proper equipment for installation. When searching for a camera to purchase, look at all the items included with the CCTV camera.
The necessary components for a surveillance system include surveillance cameras, a digital video recorder ( DVR ), a power supply, cables, and a monitor. In Digital Video Recorder (DVR) you store your footage. This device stores all the videos and displays output on a monitor or TV. Typically DRV comes in 1, 4, 8 and 16 camera channel. It includes a hard disk and you have to select the capacity of hard disk according to camera connected and recording time.
4) Choosing Installation Places:
After making sure that all of the components are on hand, the next step is to choose where the cameras will be installed.
It is ideal to place outdoor cameras where an outer wall meets the roof. Generally, the roof slightly overhangs there, providing the camera with some protection from inclement weather.
For indoor installations, it is best to choose low profile spots when installing cameras, but ones that still allow the camera to cover the desired area.
Also select the place, where you are going to place DVR and display monitor. All the cables from all cameras are comes to this place, so take care while selecting this place.
5) Setting up the Wiring:
Setting up the wiring includes drilling holes and running wire between walls and ceilings and floors
6) Placing the Cameras:
Mounting systems for security cameras differ from model to model, so it is best to follow the manufacturer’s instructions for placing the cameras.
7) Connecting the Components:
After the cameras have been placed, the next step is to connect all of the components of the surveillance system together. The cameras should first be connected to the DVR
After the cameras have been connected to the DVR and the power connector, the power connector is then connected either to a power distribution box or directly to the power supply
8) Configuring the System:
Configuring the surveillance system to work with a computer is a straightforward process. Once the system is connected and powered up, software is installed onto the computer.