The Safe City Project is an urban security project that the state vigorously implements and promotes to maintain social public safety. Over the past ten years, the Safe City project with a video surveillance system as the core has initially constructed a nationwide "Skynet" covering public areas and vital parts, providing a powerful surveillance weapon for my country's security industry.
With the changes in the networking and high-definition of security video surveillance systems, especially the construction of safe cities and the in-depth mining of applications in various industries, the massive urban scale and cross-regional surveillance systems have a great impact on storage capacity, scalability, stability, and There is a stronger demand for reliability and so on. Cloud storage can achieve massive scale effects and elastic expansion through key technologies such as cloud computing and virtualization, reducing operating costs and avoiding waste of resources.
In terms of storage capacity management, higher-capacity storage devices can meet the rapid growth of data. A virtual storage pool composed of PB-level data storage products can form a super-large-scale data storage space to cope with massive video data storage.
Massive video data has promoted the development of graphics and image retrieval and intelligent analysis technologies. It is undoubtedly a high-cost and low-return investment to rely solely on manual methods to realize the supervision of mass data. Therefore, the mass video data stored in the cloud needs a kind of Quickly retrieve the video data, through the analysis and calculation of the massive data, according to the expected predetermined strategy and calculation principle, the intelligent analysis algorithm can be used to analyze the video data. Similarly, intelligent analysis technology can also be integrated with other technologies and work with application systems such as the Internet of Things, alarm systems, automation, etc., to provide the necessary basic data and decision-making basis for the decision-making process of various application systems.
Cloud storage and the development of video surveillance technology are inextricably linked
Up to now, the security industry has gone through multiple video storage stages. The three stages of simulation, digitization, and networking of the monitoring system have appeared in different forms of monitoring data storage networks, especially in the large-scale safe city. Deploy high-definition and networked video surveillance systems to present higher-quality video images and precise intelligent data analysis and mining. In surveillance video, from the original "visible" to the current "see clearly, see far, see clearly", from manual image monitoring and data analysis to the use of intelligent analysis technology to intelligent real-time video analysis and Intelligent surveillance, through the calculation and processing of massive video surveillance data, can realize detailed analysis of high-definition video quality, intelligently mine data of similar characteristics and behaviors, and provide accurate data basis for event decision-making and business analysis.
Safe city is a derivative of smart city. With more and more surveillance applications, information fusion, information intelligent mining, large-scale data intelligent analysis and decision-making, cloud computing and other advanced technologies, especially in the cross-regional large-scale industry applications such as Safe City, it is very important for massive The demand for high-definition video data storage systems means the improvement of data storage capacity and computing performance. Storage products have high performance, high capacity, high reliability and scalability, and at the same time realize in-depth integration with surveillance system applications to meet the needs of video surveillance systems Special business applications for video data management.
Second, in the large-scale high-definition storage deployment in Safe City, improve data compression technology, disk defragmentation technology, disk bad track avoidance, equipment operation and maintenance technology, etc., in the environment of mass data storage, reduce the disk failure rate and reduce the disk capacity space The waste, which can effectively reduce the subsequent maintenance costs.
Finally, from the perspective of the entire safe city high-definition video surveillance solution, the cloud storage system is not a simple accumulation of storage devices. As the central node for video data storage and management, cloud storage integrates with the overall solution to optimize video data management. All storage nodes for high-definition video data can be used as mutual backup nodes and management nodes for application systems, in a mass-deployed monitoring system , Can improve the disaster resistance of the whole solution system, and ensure the stability and reliability of the system.
Cloud storage accelerates the development of safe cities to high-definition, intelligent, and networked directions
In the application of core technologies, cloud storage accelerates the development trend of high-definition, intelligent, and networked safe cities. Cloud storage must use its high-efficiency mass data storage and capacity management as its core application, and integrate with security application systems. Its main core technologies include virtualization technology, data security storage and protection technology, and intelligent distributed video data screening, analysis and calculation And other technologies.
Virtualization technology is to virtualize many storage devices into a single logical device form that is easy to manage. Physical disks are divided into virtual disks, and the virtual disks are deepened using fine-grained management and virtual disk operation technologies to achieve higher and more flexible management efficiency. Performance and capacity space, through virtual disk allocation technology, improve disk utilization.
Data security and protection technology based on cloud storage. Cloud storage is a storage center for massive data. Storage resources are integrated into the large storage system through the cloud. More attention should be paid to the management capabilities of high-definition video itself. A safe and reliable data protection mechanism must be provided to allow legitimate authorized users to access the corresponding resources. , To ensure that any equipment failure or catastrophic event will not cause data loss. Different data storage nodes in cloud storage are mutually data backup and data recovery mechanisms to achieve redundant backup between devices. Current data protection technologies include CDN snapshot technology, n+m device-level redundancy technology, etc. in resource management, and Huawei Cloud Storage also proposes n+0 device-level redundancy technology, which liberates streaming media and management systems. The problem of equipment bottlenecks in the world is to apply multi-hardware architecture to eliminate single-point component failures within the equipment, and to improve the reliability and safety of data storage in cloud storage through data security and protection technology.
Intelligent data screening and analysis technology is also the development trend of efficient capacity management of cloud storage. How to use distributed storage nodes to achieve efficient screening of massive data includes classification, search, preview, scheduling, intelligent analysis and processing of large-scale high-definition videos, etc. Quickly and flexibly call up the expected high-definition video data, analyze and process the fragmented video data, and store important key data for a long time. Non-key data can selectively reduce the storage time. Intelligent analysis technology is used to achieve Intelligent analysis, improve the management and processing capabilities of high-definition video data, use the built-in or independent software management platform, from the integrated management and supervision of equipment resources (including performance, storage capacity, equipment components), video and image resources, to achieve intelligence , Visualization, automatic resource scheduling and other comprehensive management. Through this technology, automatic analysis, early warning, calculation and processing of events are realized, taking into account the accuracy of video analysis, disk management efficiency, video data search and data security, and outputting highly accurate data analysis basis for event decision-making.
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