Now is the era of network technology, even grandparents are using the network

Now is the era of network technology, even grandparents are using the network, more and more places to install video surveillance system, closely related to our lives, inseparable; But what is the video surveillance system, the following is a specific introduction to you.

Video surveillance system is an important part of the security technology defense system, is an advanced and strong defense ability of the comprehensive system, it can be directly watched by the remote control camera and its auxiliary equipment all the situation of the monitored site.

First, video security monitoring system

1, the system adopts a full digital system structure, the front end uses high-definition IP camera, powered by weak current well UPS/ strong current emergency circuit; The back-end video management platform is set up; The back-end display part adopts LCD splicing screen; The back-end storage uses a disk array, and the storage capacity should meet the requirements of 31 days and 24 hours/day real-time dynamic recording.

2, all camera points can be recorded at the same time, through the network to the storage device for storage, storage time 31 days (according to D1 storage format), and can be provided at any time to access and quick retrieval, images should include camera position, date, time, etc.

3, digital video integrated platform video output signal using DVI, HDMI access display equipment.

4, the system server and storage equipment are located in the underground network computer room, system workstation and monitoring LCD splicing screen are located in a semi-underground fire and security control room; Ports are reserved for communication with the upper level.

Second, the composition of video security monitoring system

Video security monitoring system is divided into the above mentioned two types, the first is more traditional, the general deployment is easy to understand. A camera is connected to the monitoring center, and the scene is monitored in real time by human resources in the monitoring center. However, the disadvantages of manpower are also obvious, and high quality work efficiency cannot be guaranteed. In security, intelligent video surveillance systems are widely used, especially in high-risk work scenarios, intelligent video security surveillance on the market is divided into two kinds, one is the AI chip embedded in the front camera, the other is embedded in the edge server. The type of video analysis used in the market is the latter, both in terms of deployment and cost are more reasonable, to be widely used Kun Yun video security monitoring system as an example, let's take a look at what the intelligent video surveillance system consists of.

(1) Camera

From the appearance, there are mainly gun type, hemisphere, high-speed ball type. The waterproof performance of the gun is better, the irradiation range of the hemisphere camera is relatively far, and it is often used in the outdoor environment, and the disadvantage is that it needs to purchase the bracket separately. The hemisphere camera occupies a small space, beautiful and relatively hidden, the installation method can be mounted on the ceiling, can be installed on the wall, the disadvantage is not waterproof, often used in the indoor range, is our main application type.

(2) Aggregation switch

The aggregation switch is the convergence point of multiple access layer switches. It processes all the traffic from access layer devices, provides uplink to the core layer, aggregates user traffic at the access layer, and performs aggregation, forwarding, and exchange of data packet transmission.

(3) Edge processing server

Edge computing server is the edge computing module, can be used for all kinds of micro edge computing equipment, widely used in a variety of face recognition, video structuring, video transcoding and other edge computing scenarios. Provides low latency, high availability, and low cost edge computing services.

(4) Video analysis software platform

The safety production early warning platform, which provides artificial intelligence video analysis services, is composed of artificial intelligence Computing Service Center (CRCS), artificial intelligence Reasoning Center (CRIP) and artificial intelligence Monitoring Center (CRMC), forming a structured management model of "1 platform 3 centers" to provide users with flexible and convenient artificial intelligence analysis services.

Three, the system function requirements

1. Basic functions

Intelligent network video surveillance subsystem is a distributed and distributed management platform for large-scale system networking, multi-level management remote networking, and seamless integration of security systems. Intelligent network video surveillance subsystem should be able to achieve remote networking multi-level management, oriented to digital, networking, intelligent, linkage and highly integrated management of the comprehensive platform to meet the high reliability, flexibility and scalability of security management needs. It should be suitable for centralized monitoring and management of video codecs or network embedded storage servers in a distributed environment with large networking and multi-level management.

2. Storage server functions

The system ensures the stable operation of the system, no virus intrusion, and fully meets the requirements of stable video recording. The server can access multiple digital video signals, support high-definition digital signal input, and support high-definition digital signal output, to meet the front-end compatibility of the system and the needs of future high-definition system expansion. The server can choose a variety of resolutions and real-time frame number, the server comes with no less than 16 hard disk slots, supports hot swappable function, and can be connected to an external disk array, to ensure at least 31 days of valid video recording. The embedded storage server can be operated and managed through the front panel of the server, IE client, management platform, etc., including the control operation of the front-end ball machine, multi-screen switch and rotation Settings. All video materials can be easily queried and downloaded through multiple channels. Bidders must provide the storage capacity calculation formula.

3. System configuration management

The intelligent network video surveillance subsystem should be able to access the database server through the WEB to form a complete WEB configuration management center. It can configure and manage the organization structure and equipment of the whole intelligent network video surveillance subsystem.

4, system fault maintenance management function

Intelligent network video surveillance subsystem should be able to provide a variety of ways to achieve integrated security systems (including all integrated systems) terminal equipment maintenance management.

1) The operator should be able to centrally monitor the communication status, operating status and failure of the central and terminal equipment through the graphical interface of the electronic map client of the intelligent network video surveillance subsystem. When there is a status change or failure, the relevant icon on the electronic map will alert the operator by flashing. At the same time, the operator should be able to specify the color of the icon for the alarm type according to the alarm event level of the alarm type. When a terminal device has multiple states or faults, the operator can manipulate the chart to activate the device alarm event list to accurately, completely, and quickly process multiple alarm events. After the status changes, the chart can update the status information in time, and the update time is not more than 5 seconds.

2) The operator should be able to query the relevant alarm and event information according to various filtering conditions such as time, equipment location, equipment name, equipment category, alarm event level, action type, etc. The returned query information should contain alarm and event status and fault information should include time, equipment location, equipment name, equipment category, alarm event level, action type, etc.

5. Distributed identity authentication function

The intelligent network video surveillance subsystem is a distributed system for large-scale networking and multi-level management networking environment. Is a set of monitoring and management of different types of digital video virtual matrix, digital video storage, guard alarm system, access control and channel management of comprehensive management professional networking platform software.

6. Vector electronic map function

The intelligent network video surveillance subsystem is for a large and medium-sized system with a wide area and scattered equipment. If the traditional bitmap electronic map is used, it can only partially reflect the real-time status of some locations and some equipment of the project due to the principle of bitmap. A combination of scalar electronic map and vector electronic map should be used to monitor and operate the system. On the one hand, the intelligent network video surveillance subsystem should be able to support JPG, BMP, TIF and other different formats of fixed pictures, to achieve multi-level link management of plane maps; On the other hand, the vector electronic map in Autocad and SHAPE format should also be supported, and the operator can shrink, enlarge and rotate the electronic map at any time according to his own needs, and the effect of the map will not be distorted at this time. In this way, users can locate the accident scene efficiently, quickly and accurately, provide geographical location information, and facilitate the response to emergency events.

7. Real-time video surveillance function

Intelligent network video monitoring subsystem should be able to achieve real-time video monitoring through video management client, electronic map client and other forms. You can manually select the CCTV monitoring system camera image or alarm linkage display the corresponding area camera image, as well as the camera operation control, including control parameter setting, preset bit setting, camera special parameter setting, lens control, pinion uniform and variable speed control. The video can also be stored and managed, and the video can be retrieved and played back through information such as time, camera number, and event.

8, centralized alarm function

The client of intelligent network video surveillance subsystem (video management client and electronic map client) should be able to realize the centralized display, positioning and unified processing of alarm through two forms of alarm list and electronic map graphic display; The alarm event level can be flexibly defined according to the alarm type, and the alarm event level should be divided into 99 levels.

Video surveillance system, powerful, simple operation, the system innovatively realizes the integration of video surveillance and conference linkage, so as to achieve the dual functions of monitoring and communication, fully meet the transportation, water conservancy, oil fields, banks, telecommunications and other fields of remote monitoring and emergency command needs.