Airport Security Digital Analysis

Digitization is not unfamiliar at the airport. As early as 2004 to 2005, some areas of the Capital Airport have already begun to use digital technology to build video surveillance systems. In 2006, the all-digital CCTV system at the T3 terminal of the Capital Airport can be said to have opened up. The prelude of the digitalization of China’s airport CCTV system, we can also call it the first year of the digitized CCTV of China’s airports. After that, digital CCTV systems based on digital video codecs will become unwritten regulations for large and small airports. Many internationally renowned security vendors such as Honeywell, GE, and NICE have all provided their own solutions and provided fresh blood for the emerging digital security market. Since then, airports have used all-IP technology in local areas. Camera application. However, from a comprehensive digital perspective, the digitalization of CCTV over these years is only the beginning of all-digitalization, and there is still a long way to go from true digitalization.

The most typical is the airport access control. Although some international access control solutions already support controller-level IP access, most of the controllers and readers still retain the traditional independent wiring configuration in the era of weak currents. These connections, whether 485 or Wiegand, are independent of the IP environment. Imagine that when CCTV at the airport entered the era of all-digital digital cameras based on IP networks, all the power supply, image, and control were implemented through the integrated wiring IP platform. Isn't it still necessary to set up a separate wiring environment for access control? The answer is definitely negative. Imagine if the power supply, instructions, signals, and electric lock operations of the access control are all the same as those of the CCTV system. Is it possible to implement the PoE IP network more conveniently and more in line with the application requirements of the oversized coverage area of ​​the airport terminal? At least in the wiring and CCTV unified.

In fact, some mainstream access control brand products have surpassed the all-IP design. For example, in the wired IP environment, the integrated design of the card reader and the controller is completely implemented by PoE, even though the electric lock can also be driven by PoE; in the absence of a wired connection, the card reader can be transmitted through the wireless network. It is even possible to transfer data through a smart card without anything. Of course, the full digitalization is not just CCTV and access control, but it will be widely used. The audio pickup, monitoring, and broadcasting will all become digital. In fact, looking beyond the airport security, even applications such as BA and asset positioning will eventually enter the all-digital platform.

The overall digital trend, in simple terms, at least two aspects of the actual driving force. The first is intelligent, convenient management: early typical analog devices such as cameras and optical transceivers do not have remote unified management capabilities. With the increase in user demand, some analog devices have also gradually had some remote management capabilities, such as the camera's 485 communication port, managed optical transceivers, and so on. However, these managements are "independent and unrelated" from a macro perspective. The management and interface protocols of analog cameras cannot be used on manageable optical transceivers. Even optical transceivers, brand A and brand B management models and Interface protocols are also different. This result will inevitably lead to management complexity and confusion. In fact, excessive management is no different from it. However, after full digitalization, or simply describing all TCP/IP-based protocols, the standard management form based on the TCP/IP protocol can be widely applied to various devices, at least at the basic communication level, which can be completely unified. This so-called The "form" is actually a network management protocol such as SNMP that is widely accepted by digital devices. When all devices are digitized, the security device itself is basically the same as the network device. Therefore, the widely used management modes and methods on the network will be easily migrated to the management of the security system. It is also unified and convenient.

The second is cost control: This cost control can be understood as material costs and labor costs. Due to the continuous soaring of copper materials, too much wiring will result in a higher proportion of transmission costs in the entire system. Integrating power supply, signal and control on a digital network is undoubtedly the most feasible and convenient way. In addition, PON The widespread use of fiber optic technologies such as /EPON/GPON has greatly reduced the cost of a digital network platform, and the use of copper has been maximally controlled. The human cost aspect makes it easier to understand that the cost of laying a set of cables must be less than the number of sets of cables. Therefore, in the future, 95% of the weak wiring of the airport will be an IP network based on the integrated wiring technology, and only 5% of the ratio will be the independent wiring environment of some special systems.