What is AHD Camera?
The composite video baseband signal (CVBS) is the most often used signal format. Its popularity, simplicity of use, and strength have made it a good integral part of presence. CVBS is in truth a de facto signal standard for analog video surveillance systems. As all of us bid farewell to analog TV with worldwide analog switch-off (ASO) and shift on to the associated with digital TV, digital systems, such as DVB-T, ISDB-T, and ATSC, became well-known and indispensable much such as CVBS in the analog age. AHD leverages the extremely robust AV transmission capability of DTV in order to easily and seamlessly update an analog cctv surveillance system to digital complete HD. It is anticipated AHD to become the de facto standard with regard to digital video surveillance techniques in the future.
Analogue HD and IP Cameras versus the Traditional ones
When it comes to those components that are used in the technology that assists in smooth functioning of the business, several questions arise. Same is the case for surveillance cameras that are used at work. Analogue high definition cameras were recently released and patented by NextChip and these cameras are especially designed for those CCTV users who are looking for a cost effective system to keep track of the surrounding. For basic monitoring, Analogue HD cameras might be worthy of consideration but it is best to compare them with IP cameras and the traditional ones that are also competing in the market and satisfying needs of the consumers in the CCTV market.
The quality and efficiency of cameras are defined by the number of megapixels that make up the output of camera. There are mainly two kinds of cameras that are used in work environments. Some companies have adopted IP cameras while some have made use of analogue HD cameras. Both of these cameras have one million pixels as compared to a basic analogue camera that uses not more than 400,000 pixels. Due to so many megapixels in IP cameras and Analogue HD cameras, these technologies are great for recognition. These cameras have the ability to easily detect faces and even the number plates on the vehicles. Such IP cameras are enabled with a powerful tool called POE that makes sure that signals are transmitted efficiently with the help of just one cable of Cat 5E through a switch. Businesses prefer these cameras because it does not bound them to use a lot of cables when installing CCTV cameras. Moreover, the videos output is also saved in for of NVR.
In comparison to the IP cameras and Analogue HD cameras, the basic and traditionally used CCTV cameras require a lot of cables to function that creates hassles in wiring. Also the video output is stored in for of DVR which means that the videos have to be recorded locally as compared to universal recording in the megapixel cameras.
An IP camera can be of two kinds. One is in HD while the other can be a megapixel camera. The difference between both is significant because HD cameras are supposed to be megapixel cameras, while the megapixel cameras are not always in HD as it depends on the resolution of the image that is made up of megapixels. While HD cameras offer at most 2.1 megapixels, the megapixel cameras offer 16 megapixels and a higher quality of output to the users. There is a difference in the video format in terms of resolution as well. A megapixel camera will obviously offer a better aspect ratio as compared to other cameras.
The functioning and quality of megapixel cameras also depend on the number of pixels. Usually the lenses of megapixel cameras offer more between one to two million pixels in resolution, but this resolution does not really depend on the kind of lens that is used but the glass does matter. Most traditional lenses offer at most 0.5 million pixels which is quite low when compared to the resolution that can be offered by megapixel cameras.
AHD is a novel method pioneered by Nextchip. Nextchip has devoted much source into the development plus promotion of AHD options. Nextchip has developed important enabling products, reference system designs, and applications with regard to AHD. These products plus applications enable seamless plus friendly transition of video surveillance systems from analog to digital, be this all-new digital installations or even upgrades from existing analog installations.