System analysis of the echelon scheme for the formation of the switching field of the centralized video surveillance node of office infocommunication systems

Author(s):  
А.Б. Семенов ◽  
Д.А. Гончаров ◽  
А.В. Лёвкин

Введено понятие эшелонной схемы построения коммутационного поля центрального узла систем IP-видеонаблюдения и выполнена соответствующая ей модернизация типовых принципов расположение образующего его оборудования. Обоснована возможность размещения оборудования центрального узла в 19-дюймовом шкафу шириной 600 мм при количестве телекамер вплоть до 480. Проведена оценка средней длины коммутационных шнуров и показано, что обращение к эшелонной схеме дает практически двукратное сокращение этого параметра, что улучшает условия администрирование системы. The concept of an echelon scheme for constructing the switching field of the central node of IP-video surveillance systems was introduced and the corresponding modernization of the standard principles of the arrangement of the equipment forming it was performed. The possibility of placing the equipment of the central unit in a 19-inch cabinet 600 mm wide with the number of cameras up to 480 was substantiated. The estimation of the average length of the patch cords was carried out and was shown that the use of the echelon scheme gave an almost double reduction of this parameter that improved the conditions for system administration.

2017 ◽  
Vol 100 (2) ◽  
pp. 227-240 ◽  
Author(s):  
Smart C. Lubobya ◽  
Mqhele Enock-Hershal Dlodlo ◽  
Gerhard de Jager ◽  
Ackim Zulu

Sensors ◽  
2021 ◽  
Vol 21 (13) ◽  
pp. 4419
Author(s):  
Hao Li ◽  
Tianhao Xiezhang ◽  
Cheng Yang ◽  
Lianbing Deng ◽  
Peng Yi

In the construction process of smart cities, more and more video surveillance systems have been deployed for traffic, office buildings, shopping malls, and families. Thus, the security of video surveillance systems has attracted more attention. At present, many researchers focus on how to select the region of interest (RoI) accurately and then realize privacy protection in videos by selective encryption. However, relatively few researchers focus on building a security framework by analyzing the security of a video surveillance system from the system and data life cycle. By analyzing the surveillance video protection and the attack surface of a video surveillance system in a smart city, we constructed a secure surveillance framework in this manuscript. In the secure framework, a secure video surveillance model is proposed, and a secure authentication protocol that can resist man-in-the-middle attacks (MITM) and replay attacks is implemented. For the management of the video encryption key, we introduced the Chinese remainder theorem (CRT) on the basis of group key management to provide an efficient and secure key update. In addition, we built a decryption suite based on transparent encryption to ensure the security of the decryption environment. The security analysis proved that our system can guarantee the forward and backward security of the key update. In the experiment environment, the average decryption speed of our system can reach 91.47 Mb/s, which can meet the real-time requirement of practical applications.


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