Video surveillance technologies usher in the era of "multimedia" network (1)

Internet technology and application of rapid development has affected all areas, the use of cheap IP network resources to complete the monitoring image of dynamic real-time transmission so that people have basically realized in any location (Anywhere), any time (Anytime), are able to access your system and ready access to the necessary audio and video and other monitoring and alarm information.

The development of video surveillance technology

Monitoring technology from the 1980s into the country, along with the security requirements of a sharp increase has been developing rapidly, from the technical level of separation, through several different stages of development.

The first generation for all analog monitor, also called the closed circuit television monitoring.

From the last century 80 's to the 90-year initial period of ten years has been dominated the security market. A large number of applications in public security, banking, military, transportation, hotels, and other important units and departments. It features all the way through the analog camera video signal transmission to the monitoring center, monitoring center through video distribution and synthetic devices are part of the video signal on the TV set and other analog display device output, and video tape recording devices or saved.

Second generation digital monitor systems for access, from the last century began in the mid-1990s to digital hard disk video DVR, replace the original long-latency simulation video recorder, the original tape storage mode into digital recording, monitoring and control of go digital video and show the video recorder, screen divider, a digital monitor first step.

Third-generation digital surveillance systems to embedded hard disk video DVR, which is a set of applications and operating systems and microprocessors and various chip integration of embedded systems, it is characterized by: unmodifiable, compact structure, from the instability of the PC, but the image remote limited in the LAN transmission.

As computer technology development and popularization of the Internet, at present, the video surveillance has been developed to monitor the network multimedia system.

Network multimedia monitoring system

Next-generation video surveillance management system and the previous generation of video surveillance system is the fundamental difference is that it is no longer limited to simply complete on video signal processing, transmission and control, its core is based on the IP network of multimedia information (video/audio/data) provides an integrated, comprehensive management control platform.

Network multimedia monitoring system Web-based to digital video compression, transmission, storage and play as the core, smart and practical features of image analysis and alarm systems, access control system into a platform on the video surveillance industry of a technical revolution, swift has been the security industry and user attention. Network monitoring and management systems, multimedia can be widely used multimedia video dispatching, network video monitoring and meeting, multi-media webcast, online teaching, and telemedicine.

Network multimedia monitoring system monitoring and management by a network of multimedia platforms and front-end information acquisition devices, whose core is the network monitoring and management of multimedia platforms.

Network monitoring and management of multimedia platforms set computer network, telecommunications, video, streaming media, and automation technology, is video, audio, data and graphic integration solutions, and network video surveillance, video conferencing, video, broadcast, and other functions that have the super large-scale networking capability is built on top of LAN/Internet networks, support for multiple transports of integrated multimedia business management platform, its application is far beyond the control of the content covered by itself.

Network multimedia video server (NetworkMediaVideoSever, NMVS) is responsible for the front end of the video processing part, it also has a network video server network transport functions and DVR storage capabilities (VideoSever + DVR), NMVS is a video, audio, data compression, storage and processing of special computer equipment, video surveillance, Internet, IP video conferencing, video live broadcasting and VOD, and so has a wide range of applications.

NMVS uses the most advanced MPEG-4 or H.264 compression format such as, in line with specifications for video data compression, in order to meet the requirements of the storage and transport.

Network monitoring and management system for multimedia features

Previous video monitoring system while realized from analog to digital until support IP network transmission, but the front-end device features a single, relatively simple management systems, has been difficult to complete the current monitoring network is continuously expanding and increasingly complex functional requirements, network monitoring and management system came into being with multimedia, its features and advantages of mainly embodied in multimedia applications of digital, networked, intelligent, systematic and large-scale networking capabilities.

The system has the following characteristics:

1. classification of network management

Past monitoring network is often the individual enterprise/industry in their local area, since a system of monitoring demand has now developed into a business intranet, cross-industry networking, network size, previous monitoring system is unable to manage such a large scale monitoring network, the network monitoring and management of multimedia platforms hierarchical management control and thus have a very large scale networking capabilities.

2. and GIS geographic information systems, MIS systems combine

Network monitoring and management of multimedia platform will geographic information system (GIS), management information system (MIS) organically for the integrated management offers great convenience.

[1] [2]