Intelligent Security Integrated Management Platform Architecture Analysis
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1, multi-level pyramid index architecture
The intelligent security integrated management platform adopts a multi-level pyramid super index mode. Through the three-level indexing mode of database, storage server, and file, combined with ASMF file technology, it can achieve ultra-high response of second-level playback of any video camera at any time. speed. When the multi-level pyramid super index mode is positioned, layer-by-layer segmented query access is used to quickly determine any frames and video segments in the file without analyzing the entire index, which greatly improves the file positioning and response speed; ASMF files Fully independent of the operating system, direct read and write operations on the disk, with high I / O read and write performance, in Shanghai Pudong HD project, more than 12,000 high-definition cameras, 15-day storage capacity, 20PB data retrieval to achieve second-level retrieval Playback has been unanimously affirmed by the user.
2. Infinitely Expanded Virtual Storage Striping Technology
The intelligent security integrated management platform provides a virtual storage stripe technology. The so-called virtual storage striping technology is to form a basic unit by associating a certain amount of cameras, corresponding capacity storage units, and storage streaming media servers through precise accounting. This basic unit is a virtual storage stripe. The virtual storage stripe can be expanded indefinitely to meet the seamless expansion of monitoring and monitoring systems. It can support seamless construction from dozens of roads to tens of thousands of road cameras, thereby building a large-scale, super-large monitoring system. The virtual storage stripe is relatively independent and managed by the management platform. It is unified and dispatched. The effectiveness of this technology has been fully demonstrated in the Shanghai Pudong HD project.
3, highly reliable N+M backup mechanism
The most critical security system is stability, never black screen, intelligent security integrated management platform to take a variety of security, reliability design, to ensure the reliability of the management center: to achieve a distributed system through the parallel domain architecture, each parallel domain can operate independently Multiple parallel domains can synchronize data management with each other and achieve unified management by phases. Key components in the system, such as streaming media servers and storage arrays, are configured with N+M minimum redundancy to ensure that when the streaming media server and storage array fail, backup devices can immediately take over, and the core management server uses dual-machine real-time. Hot Standby. In the event of a database failure relying on local indexes to ensure that data is not lost, power failure recovery in the event of large-scale power outages, all devices can automatically restart the recovery, a lot of security backup mechanism design, all-round protection and security monitoring system's reliable operation.
4, the application of the industry - integration of innovative * combat system
The intelligent security integrated management platform is a large and medium-sized security management platform that can meet the security management needs of most industries and users. However, in the deepening applications of the industry, general-purpose large- and medium-sized security management platforms cannot meet the user's industry requirements. The industry conducts research and development for targeted applications and functions.
In the “Perceived New District†project in the Wuxi New District, the users of the Wuxi New District* branch office put forward the requirements for the construction of an actual combat platform, based on the video surveillance system in the Wuxi New District, and integrated the video surveillance system, HD bayonet system, case event system, and operation and maintenance. The system's unified* real-time platform integrates information resources such as videos, bayonet, case events, and pictures, and provides functions that meet the needs of business units for each branch of the branch. For example, it provides video patrol functions for police stations, surveillance rooms, and other units. It provides emergency command and on-site disposal functions for the command room, provides vehicle search, video search, collision comparison, event evaluation functions for criminal cases, provides efficient late-stage video troubleshooting tools for criminal investigation, and provides system-wide operation monitoring functions for ICT departments.
* As an integrated business platform, the actual combat system is not a simple data collection, but is integrated for integration. It is an integrated and innovative new business platform. It conducts targeted research and development on the basis of aggregation, and meets the case judgments and data mining of various business units. Incident management, operation and maintenance needs.
5, industrial applications - mutual integration of rail transit monitoring system
Rail transit (subway, fast rail) is the backbone of urban public transportation. It has the characteristics of energy saving, land saving, large capacity, all-weather, no pollution, and safety. It is a green environmental protection transportation system that meets the requirements of the national sustainable development strategy and is particularly suitable for large and medium-sized cities. Such as Beijing Metro Changping, Fangshan, Yizhuang three subway video monitoring system, the project is a typical industrial application of video surveillance system, not only to achieve the Beijing subway station simulation system centralized networking control management, and to achieve and control center of the ISCS Interoperability of third-party systems such as TCC, centralized alarm, operation control, and clock synchronization, as well as intelligent functions such as legacy items, alarms that pass through restricted areas, motion detection, personnel detention, and sudden passenger flow alarms.
(1) are generally made of carbonized carbon steel (accounting for 99% of total production). It can also be made of stainless steel or non-ferrous metals.
(2) The product must be heat treated. Carbon steel tapping screws must be carbonized and stainless steel tapping screws must be solution hardened. In order to make tapping screws to meet the requirements of the standard of mechanical properties and performance.
(3) The product surface hardness is high, the core toughness is good. That is, "soft inside strong outside". This is a major feature of tapping Screw performance requirements. If the surface hardness is low, it can not be screwed into the matrix; If the core toughness is poor, a twist will break, can not be used. So "inside soft outside steel" is self-tapping screw to meet the use of performance, very important requirements.
(4) The surface of the product needs surface protection treatment, generally electroplating treatment. Some product surface must be treated by phosphate (photostatting), such as wall panel self - tapping screws for photostatting.
(5) Production by cold heading process. It is recommended to use high-speed cold heading machine and high-speed wire rolling machine or high-speed planetary wire rolling machine. High speed is emphasized here to ensure product quality. Only the head of tapping screw produced by high-speed machine is well formed and the thread quality is high.