As the earliest application of video surveillance, the development of the security market has been unusually rapid and has begun to take shape. In recent years, it has been developing rapidly at a rate of about 15% to 25% per year. "Harmonious society, safe city" not only put forward new and higher requirements for security product technology and solutions, but also changed the concept of security monitoring applications.
Security monitoring development and information storage are in three stages. We can clearly see the changes and development of storage technology for monitoring data. The CCTV (Closed Circuit TV) system featuring analog signals and equipment was originally used to store monitoring data using VCR (VideoCassetteRecorders), and DVRs (DigitalVideoRecorders) or network-enabled NVRs (NetworkDVRs) in digital or partially digital monitoring systems. ) Storage monitoring data; and now to the vigorous development of network video surveillance systems (IP monitoring systems), using updated storage technology (DAS, NAS, IPSAN or FCSAN, etc.) to store monitoring data. This is the three-step development path that the surveillance system has followed, and it is also the three different eras of monitoring data storage.
Objectively speaking, the current simulation technology still occupies a large proportion, but its limitations are very obvious. The increasingly extensive and deep application of digital and networked security technologies is an inevitable development trend. In the early days of the security market for analog and digital technologies, users were more concerned with hardware devices such as cameras. Therefore, in the first and second generation monitoring systems, the problem of storage concern and resolution was how to faithfully monitor the monitored data. Recorded in complete, in order to prepare for future incidents can effectively query, so the importance of monitoring data is played very limited, it can be said that the focus of attention is on the monitoring data collection and transmission side. With the development of networked monitoring, the collection and application of data has become more and more widespread and the scope has become wider and wider. Traditional data storage methods are increasingly unable to meet requirements, which means that even the most basic data is difficult to meet afterwards. From the user's point of view, the existing monitoring is basically an independent system. Different industries or industries in different regions can obtain a variety of effective information through surveillance cameras, but it is difficult to achieve sharing, let alone security. Effective management of information.
In fact, the security monitoring system not only raises higher requirements on the security monitoring technology itself, but also puts higher requirements on the storage of monitoring data. With the increase in the application scale and requirements of security monitoring systems, the higher requirements for monitoring data can be reflected in several major aspects (1) the reliability and integrity of monitoring data storage;
(2) The scalability of monitoring data storage includes: how to meet the need for higher resolution or more acquisition points for data acquisition and how to meet the need for longer data acquisition time;
(3) How to share monitoring data of each part.
Is storage technology widely used in IT application solutions (such as DAS, NAS, IPSAN, and FCSAN) directly applied to security monitoring systems? Can storage technology in IT technology integrate with surveillance systems? Theoretically, it is entirely possible that existing storage technologies can fully meet these requirements. Considering the characteristics of video surveillance data stream (streaming) access, if the code stream access characteristics for security monitoring are reasonably customized, the cost performance will be more reasonable. Therefore, the storage technology can completely meet the needs of future generations of security monitoring systems for security data in future reference, and can solve the problem of reliable, complete, and shared storage of monitoring data.
Security monitoring development and information storage are in three stages. We can clearly see the changes and development of storage technology for monitoring data. The CCTV (Closed Circuit TV) system featuring analog signals and equipment was originally used to store monitoring data using VCR (VideoCassetteRecorders), and DVRs (DigitalVideoRecorders) or network-enabled NVRs (NetworkDVRs) in digital or partially digital monitoring systems. ) Storage monitoring data; and now to the vigorous development of network video surveillance systems (IP monitoring systems), using updated storage technology (DAS, NAS, IPSAN or FCSAN, etc.) to store monitoring data. This is the three-step development path that the surveillance system has followed, and it is also the three different eras of monitoring data storage.
Objectively speaking, the current simulation technology still occupies a large proportion, but its limitations are very obvious. The increasingly extensive and deep application of digital and networked security technologies is an inevitable development trend. In the early days of the security market for analog and digital technologies, users were more concerned with hardware devices such as cameras. Therefore, in the first and second generation monitoring systems, the problem of storage concern and resolution was how to faithfully monitor the monitored data. Recorded in complete, in order to prepare for future incidents can effectively query, so the importance of monitoring data is played very limited, it can be said that the focus of attention is on the monitoring data collection and transmission side. With the development of networked monitoring, the collection and application of data has become more and more widespread and the scope has become wider and wider. Traditional data storage methods are increasingly unable to meet requirements, which means that even the most basic data is difficult to meet afterwards. From the user's point of view, the existing monitoring is basically an independent system. Different industries or industries in different regions can obtain a variety of effective information through surveillance cameras, but it is difficult to achieve sharing, let alone security. Effective management of information.
In fact, the security monitoring system not only raises higher requirements on the security monitoring technology itself, but also puts higher requirements on the storage of monitoring data. With the increase in the application scale and requirements of security monitoring systems, the higher requirements for monitoring data can be reflected in several major aspects (1) the reliability and integrity of monitoring data storage;
(2) The scalability of monitoring data storage includes: how to meet the need for higher resolution or more acquisition points for data acquisition and how to meet the need for longer data acquisition time;
(3) How to share monitoring data of each part.
Is storage technology widely used in IT application solutions (such as DAS, NAS, IPSAN, and FCSAN) directly applied to security monitoring systems? Can storage technology in IT technology integrate with surveillance systems? Theoretically, it is entirely possible that existing storage technologies can fully meet these requirements. Considering the characteristics of video surveillance data stream (streaming) access, if the code stream access characteristics for security monitoring are reasonably customized, the cost performance will be more reasonable. Therefore, the storage technology can completely meet the needs of future generations of security monitoring systems for security data in future reference, and can solve the problem of reliable, complete, and shared storage of monitoring data.