The rapid development of networking technologies and applications has affected all fields, using inexpensive IP network resources to complete the dynamic and real-time transmission of monitoring images, so that people can basically achieve any location (Anywhere) and any time (Anytime). Enter your own system and get the necessary audio and video and other monitoring alarm information at any time.
The development of video surveillance technology monitoring technology since entering the country in the 1980s, with the rapid increase in security demand has been rapid development, from the technical level of points, through the following several different stages of development.
The first generation is full analog monitoring, also called closed-circuit television monitoring. From the 80s to the early 90s of the last century, more than a decade has dominated the security market. A large number of applications in public security, banking, military, transportation, hotels and other important units and departments. Its characteristics are all through the analog video camera signal transmission to the monitoring center, the monitoring center through the video distribution and synthesis equipment will be a part of the video signal output on televisions and other analog display devices, and tape recording equipment for video or save.
The second-generation digital surveillance system, which began in the mid-1990s, is based on digital hard disk video DVRs. It replaces the original long-delay analog video recorder and converts the original tape storage mode to digital storage video. The analog-to-digital video recording and display of the monitoring system integrates functions such as video recorders and picture splitters, and takes the first step of digital surveillance.
The third generation of all-digital monitoring system is based on embedded hard disk video DVR. This is an embedded system that integrates application programs and operating systems with microprocessors and various chips. Its features are: Cannot be modified , Compact structure, out of the PC's instability, but the image transmission is limited to local area network transmission.
With the development of computer technology and the popularity of the network, video surveillance has developed into a network multimedia monitoring system.
Network Multimedia Surveillance System The fundamental difference between the new-generation video surveillance management system and previous generations of video surveillance systems is that it is no longer confined to the simple processing, transmission, and control of video signals, but its core is multimedia based on IP networks. Information (video/audio/data) provides a comprehensive and complete management and control platform. The network multimedia monitoring system is based on the network and focuses on the compression, transmission, storage and playback of digital video. It features intelligent and practical image analysis, integrates with the alarm system and access control system to a use platform, and triggers video surveillance. A technological revolution in the industry quickly caught the attention of the security industry and users. The network multimedia monitoring and management system can be widely used in multimedia video dispatching and commanding, network video monitoring and conferences, multimedia webcasting, online teaching, and telemedicine.
The network multimedia monitoring system consists of a network multimedia monitoring management platform and front-end information collection equipment. Its core is a network multimedia monitoring management platform. Network multimedia monitoring and management platform integrates computer network, communication, video processing, streaming media, and automation technology. It is an integrated solution for video, audio, data, and graphics. It also provides network video monitoring, video conferencing, and live video streaming. With ultra-large-scale networking capabilities, it is an integrated multimedia service management platform built on a LAN/Internet network supporting multiple transmission methods. Its application has far exceeded the content covered by the monitoring itself.
The network multimedia video server (Network Media Video Sever, NMVS) is responsible for the video processing part of the front end. It also has the network transmission function of the network video server and the storage function of the hard disc recorder (VideoSever+DVR). The NMVS is a method for video, audio and data. Compression, storage and processing of special computer equipment, it has a wide range of applications in video surveillance, network teaching, IP video conferencing, live video and video on demand. NMVS adopts the most advanced compression formats such as MPEG-4 or H.264, and compresses and encodes video data in compliance with technical specifications to meet the storage and transmission requirements.
Characteristics of Network Multimedia Monitoring and Management System Previously, although the video monitoring system realized the transmission from analog to digital to IP network support, the single front-end equipment functions and relatively simple management system have made it difficult to complete the continuous expansion of the current monitoring network. With complex functional requirements, a network multimedia monitoring and management system emerged. Its features and advantages are mainly embodied in the digitalization, networking, intelligence, systematization and ultra-large-scale networking capabilities of multimedia applications. The system has the following features:
1. Gradation of network management In the past, monitoring networks were usually self-contained systems for individual enterprises/industries in local areas. The current monitoring requirements have been developed into intra-industry networking and cross-industry networking. The scale of networks has become larger and larger. Previous monitoring systems It has been unable to manage such a large-scale monitoring network. The network multimedia monitoring and management platform adopts a hierarchical management control method and thus has a very large-scale networking capability.
2. Organic integration with GIS geographic information system, MIS system, etc. The network multimedia monitoring and management platform integrates Geographic Information System (GIS) and Management Information System (MIS) organically, providing great convenience for users' comprehensive management.
3. Distributed information forwarding/storage The video and audio information, although compressed and encoded, still occupies a large amount of transmission bandwidth and storage space. The network multimedia monitoring and management platform uses distributed information forwarding and storage to virtualize on the IP network. Matrix control greatly improves the network bandwidth utilization and greatly reduces the investment in hardware devices.
4. Addressing and positioning automation network The multimedia monitoring and management platform adopts dynamic domain name resolution technology. The front end and the client only need a simple login operation. After the authentication and authentication, the system can automatically complete the addressing and positioning function of the newly added device. The monitoring system truly implements plug-and-play, "promiseless" expansion.
5. Effective Utilization of Private IP Address The network multimedia monitoring and management platform adopts virtual IP address technology, which makes the private IP address use effectively and saves a limited amount of public IP address resources.
6. Linkage management with various alarm functions and various alarm functions and linkage management of the access control system enables the system to detect multiple alarm signals. When an alarm occurs, one or more devices can be linked to work cooperatively, such as automatically starting the video recording function. (How many seconds before the alarm can be recorded), the camera goes to the alarm preset position, sends an SMS to the specified person, a voice prompt or a telephone call, and so on.
7. Remote management The remote management function can realize remote maintenance, remote configuration, and remote status query, which can greatly reduce on-site maintenance workload, just as convenient as in the local.
8. The standard network architecture system is based on the C/S (client/server) or B/S (browser/server) architecture and supports the monitoring of computers and handheld PDAs, providing great convenience for users.
The Future of Video Surveillance System: Smart and Mobile With the increasingly mature video surveillance system, the current video surveillance system has begun to develop in the direction of intelligence.
Examples of the features of a typical intelligent video surveillance system include:
1. Security and linkage functions related to business applications, such as the interaction between various security sensors, controllers, audio and video recordings, and monitoring alarms. Each specific application field should be able to easily and flexibly define various related linkages on the monitoring software.
2. Image analysis functions, such as motion analysis in the sensitive area defined in the image range, and provide targeted recording, target tracking and alarm linkage.
3. Image recognition functions, such as recognizing a person's face image in a video image, identifying a specific person in an audio, and a license plate recognition and target recognition function in various industries.
In the future video surveillance system, the realization of these functions is fully technically guaranteed. With the development and maturation of wireless communication technology, another important application area is mobile monitoring, that is, the front-end monitoring point is a mobile device, which requires that the entire monitoring system must be an all-digital, intelligent system.
The rapid development of networking technologies and applications has affected all fields, using inexpensive IP network resources to complete the dynamic real-time transmission of monitoring images, so that people have basically achieved any location (Anywhere) and any time (Anytime) can Enter your own system and get the required audio and video and other monitoring alarm information at any time.
The development of video surveillance technology monitoring technology since entering the country in the 1980s, with the rapid increase in security demand has been rapid development, from the technical level of points, through the following several different stages of development.
The first generation is full analog monitoring, also called closed-circuit television monitoring. From the 80s to the early 90s of the last century, more than a decade has dominated the security market. A large number of applications in public security, banking, military, transportation, hotels and other important units and departments. Its characteristics are all through the analog video camera signal transmission to the monitoring center, the monitoring center through the video distribution and synthesis equipment will be a part of the video signal output on televisions and other analog display devices, and tape recording equipment for video or save.
The second-generation digital surveillance system, which began in the mid-1990s, is based on digital hard disk video DVRs. It replaces the original long-delay analog video recorder and converts the original tape storage mode to digital storage video. The analog-to-digital video recording and display of the monitoring system integrates functions such as video recorders and picture splitters, and takes the first step of digital surveillance.
The third generation of all-digital monitoring system is based on embedded hard disk video DVR. This is an embedded system that integrates application programs and operating systems with microprocessors and various chips. Its features are: Cannot be modified , Compact structure, out of the PC's instability, but the image transmission is limited to local area network transmission.
With the development of computer technology and the popularity of the network, video surveillance has developed into a network multimedia monitoring system.
Network Multimedia Surveillance System The fundamental difference between the next-generation video surveillance management system and previous generations of video surveillance systems is that it is no longer confined to the simple processing, transmission, and control of video signals, but its core is multimedia based on IP networks. Information (video/audio/data) provides a comprehensive and complete management and control platform. The network multimedia monitoring system is based on the network and focuses on the compression, transmission, storage and playback of digital video. It features intelligent and practical image analysis, integrates with the alarm system and access control system to a use platform, and triggers video surveillance. A technological revolution in the industry quickly caught the attention of the security industry and users. The network multimedia monitoring and management system can be widely used in multimedia video dispatching and commanding, network video monitoring and conferences, multimedia webcasting, online teaching, and telemedicine.
The network multimedia monitoring system consists of a network multimedia monitoring management platform and front-end information collection equipment. Its core is a network multimedia monitoring management platform. Network multimedia monitoring and management platform integrates computer network, communication, video processing, streaming media, and automation technology. It is an integrated solution for video, audio, data, and graphics. It also provides network video monitoring, video conferencing, and live video streaming. With ultra-large-scale networking capabilities, it is an integrated multimedia service management platform built on a LAN/Internet network supporting multiple transmission methods. Its application has far exceeded the content covered by the monitoring itself.
The network multimedia video server (Network Media Video Sever, NMVS) is responsible for the video processing part of the front end. It also has the network transmission function of the network video server and the storage function of the hard disc recorder (VideoSever+DVR). The NMVS is a method for video, audio and data. Compression, storage and processing of special computer equipment, it has a wide range of applications in video surveillance, network teaching, IP video conferencing, live video and video on demand. NMVS adopts the most advanced compression formats such as MPEG-4 or H.264, and compresses and encodes video data in compliance with technical specifications to meet the storage and transmission requirements.
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