What is AHD

Recently, the network eye AHD as the security high-definition field new product and the technology, has aroused the industry personage's widespread concern. Many people are not fully aware of what AHD is. I hereby give you a more comprehensive explanation.

First, the concept

In the universal sense, AHD is the abbreviation of American Heritage dictionary, the phonetic transcription of American traditional dictionaries, which is used more. And from the angle of security to explain, AHD representative is analog high Definition.

The Analog high definition means the simulation of a higher resolution. In terms of high definition, in short, we usually use the physical resolution of more than 720p format is called as HD, referred to as HD. The vertical resolution of the image is 1080i, 720p, or 1080p. 1080i refers to the resolution of 1920x1080, the adoption of interlaced scanning, rendering 30 full screen per second, 720p refers to the resolution of 1280x720, the adoption of sequential scan, 60 full screen per second, the 1080p refers to the resolution of 1920x1080, sequential scanning, Renders 60 full frames per second.

The AHD is based on the AHD protocol, using analog coaxial cable to transmit progressive scan HD video.

Second, the characteristics

AHD with the traditional equipment as simple and convenient operation, with the ordinary 75-3-axis can be used as far as 500 meters high-definition lossless transmission, breaking through the existing transmission of HD video transmission limit, can achieve low cost, long distance, no delay, high efficiency, anti-interference and easy implementation of Megapixel HD video transmission.

Iii. Scope of application

AHD follows the approach and method of simulating SD transmission, which can reduce the complexity of construction deployment, reduce the cost and maintenance complexity of auxiliary materials, and the technical requirements of construction personnel. Ideal for upgrading old systems, the SD can be easily upgraded to HD without changing the original system. In addition, HD quality SD price, so that AHD in the civil and industrial-grade market has a very large space for development.

Iv. about Network Eye AHD

Network Eye AHD HD series products, by the era of China's independent research and development, and in the industry first launched. Its set of AHD HD modules, AHD HD cameras and AHD DVR backend in one, is a set of fully intellectual property of the HD solution. Network Eye AHD HD series of products will be the leader in high-definition industry, not only lead the new trend of security market vane, more in line with the current business, the actual needs of users.

V. Development prospects

In this era of analog-to-digital high-definition surveillance, in such a time full of opportunities but also dangerous, the era of China's first attack for the high-definition market injected a new vitality. We can see that AHD is undoubtedly another technological innovation in the HD market, and will become a new trend in the security market.