With the improvement of people's living standards, leisure and entertainment has become an important part of people's lives. The mobility of scenic spots is large, the complexity of personnel is strong, the traffic volume of different places is high, and the safety risks of scenic spots are rapidly increasing. The high-definition video surveillance system has always been an important measure for the construction of scenic spots. The ancient city of a county has invested a large amount of money to develop a video surveillance system.
The construction of video surveillance system in Gucheng Scenic Area requires the support of new generation transmission network, cloud computing, cloud storage, Internet + and other emerging information technologies to realize video surveillance, passenger flow statistics, fire protection system, parking lot management, bayonet system and other systems. Cross-platform, cross-network, cross-terminal, and support a large number of users concurrent access, comprehensive application of massive data, integrated management between multiple systems, on the basis of the existing scenic information, to achieve the sharing of information resources in scenic spots, provide Comprehensive information resources utilization and application support services, while improving the management and service level of scenic spots.
In the management of the scenic spot, the intelligent management system will comprehensively manage each system, integrate various system resources, realize data sharing between systems, and unify the user operation interface, optimize the business management process, and let users use the system in management. It has become more convenient and simple, making the operation of the scenic spot more orderly and safer. On the other hand, through system integration, the business data interaction is more closely, and the system's business integration capability is more optimized to achieve the system integration effect.
In the experience of tourists, creating a smart scenic spot, on the basis of protecting the personal safety of tourists, enhance the interaction with tourists, so that all departments and links of the scenic spot can better serve tourists and bring more comfortable and better tourist experience to tourists.
Second, pain point analysis1. The original network system rectification
The construction of the early video private network in Gucheng Scenic Area adopted the oil-filled construction method, lacking the overall planning idea of ​​the video private network. The original network system used more low-end access layer switches, basically adopting the cascading mode, and did not adopt VLAN technology is used to isolate network storms, causing certain video jams. Since the video network is not processed well, more packet loss occurs, and there is a certain jump in real-time playback and video playback.
To solve such problems, it is necessary to solve the planning problem of the video private network, curb the occurrence of network failures from the source, and improve the degree of visual management of the network system.
2, it is difficult to lay cables
As a famous scenic spot, the biggest difficulty in the construction of this video private network is the construction of the power supply system. The wooden buildings in the urban area are continuous, the ground is all bluestone tiles, and the video private network needs to lay cables and optical fibers. The difficulties caused by the laying work are unprecedented. . In particular, the cables necessary for the video surveillance system are densely distributed outside the urban area. The front-end video surveillance points are scattered in all corners of the jurisdiction. From the laying of cables in the urban area to the front-end monitoring points, it is necessary to cross the trees and rivers. The flow of people is very large. 220V cable laying has great potential safety hazards.
In addition, the ancient city is different from the modern city. The foundation of the underground pipeline construction in the urban area is almost zero. The function of the ancient city is mainly tourism. The buildings in the ancient city are almost all the wooden structures. The grounds of the streets are all bluestone tiles. If laying from a wooden building not only affects the landscape, but also easily causes fires; if laying optical fibers and cables from the ground, it is necessary to excavate the bluestone bricks and then compensate them as they are, so the amount of work is extremely large, and there is the possibility of breaking the scenic spots. .
3, the previous video transformation
First of all, in the construction of the early stage video surveillance system in the ancient city, most of the front-end cameras are standard-definition cameras, and a small part are analog cameras. These front-end cameras have low definition and inconvenient transmission line deployment, which cannot meet the requirements of the scenic intelligent video surveillance system. .
Secondly, in the video private network built in the early days, the network equipment selection is too low-end, and does not have the implementation of advanced network technology, only as a preliminary requirement for video transmission, but with the development of high-definition video surveillance, these network devices are always Can't effectively support HD video transmission.
Thirdly, the early video surveillance storage system is relatively backward, adopting the DVR storage method, which not only has a short storage time, but also cannot effectively manage the video recording mechanism. The stability, manageability, and scalability of the entire storage system are poor.
Finally, video surveillance equipment has many brands and diverse protocols. Centralized collection and unified management of equipment operation status requires access to the operation and maintenance platform, and this requires driving these devices to access the operation and maintenance platform.
Third, the solutionAccording to the needs of the project, it is necessary to build more than 600 high-definition videos to form a “Skynet†covered by the video surveillance points in the Gucheng District and covered by key areas of the river area. The system construction topology is as follows:
Construction points:
1. Flat network architecture
In order to realize the real-time, smooth playback and playback of the video in the scenic spot, the scheme adopts the architecture of the large-scale data center. According to the comprehensive situation of the geographical environment, organizational structure, physical location of the link, etc., we divide the network into two levels: the core Layer, access layer.
The core layer adopts a box-type core switch and is configured with a Gigabit optical port service board to connect to the front-end access layer industrial switch. Configure a Gigabit electrical interface card for connecting servers and storage, as well as user and video integration platforms; because the core switch has high reliability (99.999%), large address entries (large MAC entries), and high speed ( L2/L4 wire-speed forwarding) and low latency (subtle delay), so the video fluency problem can be well solved.
The front-end access layer switches use DC-powered industrial switches. Because industrial switches can work in harsh environments, such as high-low temperature and high humidity environments, they are ideally suited as access layer switches in the scenic area.
Video private network requires overall planning. Network technology application is an important part. VLAN technology is used to divide 600 video cameras into N network segments, and network storms are isolated by VLAN technology to obtain high-quality video surveillance images.
2, smart power supply green
According to the physical environment, the construction is divided into N intelligent power supply boxes, which adopt 48V DC power supply system. The main distribution box is laid along the edge of the river channel or the urban drainage pipe through the DC 48V cable, connecting to various areas of the city. The centralized power supply box, the centralized power supply box is divided into the front and the back, the back can provide 48V power supply, and the front can be set up with industrial switches. The centralized power supply box is not only used as a transmission node, but also a smart power supply box, providing 24V/48V power for front-end cameras and industrial switches.
3, the use of big data storage
Cloud computing, cloud storage and other technologies have been successfully deployed in the ancient city video surveillance system, which not only brings massive data aggregation to the scenic video surveillance system, but also enhances the video storage technology. The cloud storage management node uses the built-in video cloud storage management software (CVM) to form a CVMN management cluster, which linearly improves system performance, is responsible for the operation and management of the entire system, supports business load balancing, real-time dynamic adjustment, and supports dual-machine HA and cluster deployment modes. . The video cloud storage storage node has built-in video cloud storage storage software (CVS) and video cloud storage access software (CVA), which can support active recording, data discrete storage, and concurrent reading, and provide efficient business continuity services.
4. Intensive operation and maintenance management
The integrated monitoring and operation and maintenance management platform is connected to obtain the running status of resources such as storage devices, application systems, and front-end devices. The internal integration is seamlessly connected with the network management platform to achieve the acquisition of the running status of the device. Analyze the system, realize unified interface login, and unify platform management. By setting intelligent behavior analysis rules, once an action is triggered, an alarm is generated, and the video can be linked, and the related video and the sound and light alarm are automatically popped up, which can greatly reduce the video patrol of the manager. Labor intensity in the process.
5, the Internet + application
After the successful construction of the video surveillance system in Gucheng Scenic Area, remote video management needs to be realized through Internet technology. Address conversion is realized through router or firewall technology, the video management platform is mapped to the Internet, and remote monitoring is realized through the mobile phone client.
6, mobile 4G + application
Security personnel in the Gucheng Scenic Area can use emergency video surveillance equipment such as individual soldiers or mobile phones to respond to emergencies urgently during security patrols in the scenic area. The individual soldier system can achieve higher speed by using 4G+ technology, especially the “carrier aggregation†of the fourth generation mobile technology. The individual soldier system can quickly upload HD video to the video monitoring platform, which greatly enhances the individual soldier. System application capabilities.
Fourth, the typical meaningThrough the planning and construction of the ancient city video network, Hikvision has solved the problem of video access at the front end of the scenic spot, and upgraded the original SD video surveillance system to the high-definition video surveillance system, thus providing video intelligence. The application provides the foundation. The use of next-generation transmission network technology solves the problem of laying optical fibers and cables, and the network transmission link has been streamlined to achieve rapid exchange. In the video storage, the problem of “scatter, chaos, and small†that existed in the past has been changed, and cloud storage with advanced, redundant capabilities and large storage capacity has been realized. Mobileization and Internet+ have been realized in video surveillance management, which has solved the flattening of the scenic area management system. In terms of information security, Hikvision uses a firewall or intrusion prevention system to solve network security problems and hacking problems. Through the unified planning and construction of the network and power supply, the video surveillance system of the scenic spot has realized the transformation of network, high-definition and intelligent, which can better enhance the security and visual management level of the scenic spot.
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