In the modern times, fool-proof security has become a much more important of a concern for businesses, institutions and even for governments than it ever was. It may have made the businessman a bit more obsessive about the safety of his investments, but on the flip side it has given a big boost to the advancement and growth of the security surveillance sector. Many businesses and even households with security concerns are taking security camera installations a lot more seriously with every passing day.
A Surveillance Camera not only helps in keeping crime under control, but also helps in monitoring a location or activity of an individual/group and helps in keeping unwanted guests at bay. In order to secure a property or to prevent theft, most of us are opting for video surveillance cameras. In support to this trend, is the boom in IT sector, which has triggered the availability of more advanced technological innovations in security at much better economy.
There are many different types of security surveillance related cameras, which can be used in a variety of different situations and settings. This article will focus on the surveillance camera types and their uses.
Wired and Wireless surveillance cameras- Security cameras are available in Wireless and Wired forms. Wireless cameras are those cameras which can be interfaced to a DVR/NVR through a wire. The advantage of a wired security surveillance camera is that it is more reliable than its wireless cousin. Unless the wire line gets tampered, the reliability factor remains intact in this arrangement. Obviously, as the name suggests, wireless surveillance cameras are those cameras which do not have the need to be powered by a power utility. They can run on a battery or on solar power and can be interfaced with the monitoring station via wireless internet connectivity. In areas, where power and internet connectivity is deficient, a wireless security camera will be the right choice to be deployed. The main advantage of such a camera is that its can be easily installed. But due to signal interference, these cameras are not reliable. For those applications which need a permanent set up of security surveillance, wired surveillance camera deployment is preferred.
Dome surveillance cameras- Dome surveillance cameras are usually found in indoor environments than in outdoor. These cameras are small in size and are surrounded by a vandal proof transparent plastic casing, which sometimes is covered in black color. The appearance of them makes their presence felt in the environment and this deters the criminals, as they have a fear of being constantly watched.
Bullet Surveillance cameras- Bullet cameras are long, sleek and can be placed in outdoor and indoor environments. These security cameras are offered with a resistance for wind, water, snow and can withstand any type of weather conditions. In practical, such cameras need cleaning of lens window on a regular note.
Black White vs. Color Surveillance cameras- Colored surveillance cameras are often preferred in most of the environments, as they help to distinguish individual items, color of clothing and many such features. Whereas, black & white cameras offer plain videos and so may not be a good take in this digital world. But in environments such as discotheques, B/W cameras offer effective video monitoring with the presence of a large lens, which allows them to capture a lot of light. So, light distraction will never obstruct the ability to clear capture the video in B/W cameras.
PTZ Cameras- Pan, tilt and zoom cameras are those surveillance cameras which can be rotated back and forth and sometimes can be panned to 360 degrees. These cameras can also be tilted and zoomed and can be used on indoor and outdoor environments. These cameras are on high demand as they can be remotely controlled and configured over IP. PTZ cameras can be housed in weather and vandal proof housing if needed.
Thermal Imaging cameras- Thermal Imaging cameras work on a principle of sensing objects based on the heat radiation emitted by a person, vehicle or an object. This ability of them makes them apt to be used in environments such as very low light conditions. Basically, these cameras can also be called as infrared radiation devices, which can monitor the area 24 hours a day and seven days a week. It also helps in detecting motion from almost a 3KM range and so these cameras are mainly used in military related environments. The only disadvantage of a thermal security camera is that it cannot provide evidence for property damage and cannot identify people for video evidence.
Hope, this article helps you in designing your video surveillance system.