Inspur Mass Storage Opens New Application of Video Monitoring in Safe City

Under the vigorous promotion of national policies, the construction of safe cities has achieved a certain level after the development in recent years, and the safety of urban people has been guaranteed. With the development of the industry and the maturity of the market, law enforcement agencies have put forward higher requirements for the construction of “Safe City”. Traditional products and solutions cannot meet this demand, and there are many traditional products and solutions. defect.

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Nowadays, most urban surveillance is high-definition video surveillance with 4Mbps and 8Mbps streams. Traditional products (such as 512KB, 2Mbps stream traditional products) can not meet the current needs, which puts forward the network bandwidth and data storage capacity of the product. new challenge. The following table is to calculate the video file size generated by one video in a day according to different code streams.

For example: a city safe city plans to build 3,000 points, the video is saved for one month, all cameras use D1 resolution (2Mbps stream) for video recording. It takes about 648GB to calculate a single-channel video recording for one month, and about 1944TB for 3,000 points. With some disk redundancy and hot spare, the total space will reach about 2PB. It can be seen that the demand for storage capacity of video surveillance has increased by terabytes.

As far as the solution is concerned, most of the surveillance solutions on the market currently use analog cameras + digital hard disk recorders (DVRs), network high-definition cameras (IPCs) to write directly to network video storage (NVR), network high-definition cameras (IPC) + streaming media. Server + Network Storage (IPSAN), each of which has its drawbacks.

Analog camera + digital hard disk recorder (DVR) mode, the front-end video surveillance image of this scheme is not clear, and most of them are used in applications such as residential areas, enterprise factories, supermarkets, banks, etc. with few points and small coverage. The advantages are low cost and simple management; the shortcomings are short storage time, unclear video image, and high single point failure rate.

The network high-definition camera (IPC) writes directly to the network video storage (NVR) mode, and is generally applied to large-scale safe cities with wide coverage, long transmission distance, and high network bandwidth. The advantage of this solution is that the front-end streaming server is omitted, which saves the cost to a certain extent. The disadvantage is that when the number of concurrent connections increases, the NVR collapses and the data is lost. When the video surveillance reaches thousands of channels, the number of NVRs will increase, occupying a large space in the equipment room, and the NVRs are scattered, and the management is complicated. The rate is high and it is easy to cause data loss.

Network HD Camera (IPC) + Streaming Media Server + Network Storage (IPSAN) This solution fills the shortcomings of the way network video cameras (IPC) write directly to network video storage (NVR), spreading the pressure of video reading and writing to each On the streaming media server, it is the most important solution for the construction of a safe city. The disadvantage is that as the number of video surveillance channels increases, the number of streaming media servers increases linearly, increasing the cost of customer input and occupying a large amount of space in the computer room. Equipment management is complex.

Inspur leading solution:

The analysis of the safe city solution in the market today basically consists of three parts: the front-end video surveillance device, the forwarding streaming media server, and the storage device. When the number of video devices increases, the forwarding streaming media server and storage device will grow linearly. The management and maintenance are complicated, the single point failure rate is high, the space occupancy of the equipment room is large, and the installation and implementation engineering volume is large. There is a lack of security products in the market that combines forwarding and mass storage to meet the needs of today's safe cities for high bandwidth, large capacity storage, and centralized management.

Based on the above requirements, and considering that the scale of the construction of safe cities is getting bigger and bigger, and the requirements are getting higher and higher, Inspur has launched a large-scale video surveillance centralized management solution and massive storage monitoring platform - Inspur AS3000, which can provide up to 64GB Bandwidth, maximum support for 64PB of massive space, can access up to thousands of HD video at the same time.

Inspur AS3000 massive video monitoring platform

The AS3000 mass monitoring video monitoring platform consists of a control node, a data node, a storage node, and a network transmission device.

Control node: The main function is to manage and assign concurrent tasks to data nodes, and polling data nodes for busy and idle allocation tasks. Data node: The main function is to receive the video stream from the front end, write it to the storage node of the back end through the FC storage network or read the video data from the back end storage node for viewing by the front-end user. Its function is similar to streaming media. server. Storage node: The main function is to store the video data of the front end in a file-level manner to keep the video data storage secure. Network transmission equipment: The AS3000 massive video surveillance platform provides a rich network interface to meet different application scenarios and supports access to various devices.

Advantage:

High bandwidth: The AS3000 massive video surveillance platform has a maximum bandwidth of up to 64GB, and the bandwidth grows linearly with the number of data nodes. If each video is calculated by 8 Mbps, the AS3000 can support 64 GB/8 Mbps = 64,000 video simultaneous writes, eliminating the bandwidth occupied by the control information, and supporting up to 60,000 channels of video for writing.

High availability: The data nodes and control nodes of the AS3000 mass video surveillance platform adopt a fully redundant structure. Any data node failure will not cause service interruption. When a node is down due to a fault, the control node will sound an alarm when assigning tasks. Tasks are no longer assigned to it, but are load balanced by other data nodes. The back-end storage nodes all use fiber-optic dual-redundant lines. Any line failure will not affect the writing of data nodes, and all-fiber technology is adopted, which is not only fast, but also high in security.

Large capacity: AS3000 mass video surveillance platform system has a maximum capacity of 64PB. If each HD video is calculated by 8Mbps code stream, the amount of data generated per month is: 8Mbps × 60 × 60 × 24 × 30 = 259.2GB; The computing system can support 246913 (64PB/259.2GB) video storage for 30 days.

High write performance: As we all know, the IP camera encodes the front-end video and then transfers it to the recording server in the form of a file. The recording server disk is stored at the block level. The video data file must be cut into blocks first when it reaches the recording server. Then block storage, which greatly reduces the data write performance. Inspur AS3000 is developed based on the file system. The current video file is transferred to the AS3000. The AS3000 system does not need to cut the video file into blocks. The video file is directly written to the disk through the cluster file system inside the AS3000, which greatly improves the video file. Write performance, AS3000 write performance of video files is about 40% higher than the general system performance, is a set of dedicated system platform for video file reading and writing.

Reduce costs: Inspur AS3000 cluster system integrates data nodes and storage nodes to provide load balancing, which greatly improves the efficiency of data nodes. For example, 3000 channels of D1 (stream: 1Mbps - 2Mbps) video points require about 30 streaming servers, while AS3000 requires only 15 data nodes, and the 15 data nodes are load balanced, greatly improving the data. Node utilization, in addition, any data node failure will not cause business interruption, because 15 data nodes are mutually redundant. The Inspur AS3000 not only saves the number of streaming media servers, but also improves the security of the system.

Inspur AS3000 mass video surveillance platform has the characteristics of bandwidth, high concurrency, large capacity and high availability. It can fully meet the needs of 10,000 road safe city construction and greatly reduce customer cost. Inspur AS3000 massive video surveillance platform will open China Security Cloud The new wave of applications.

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