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Overview
The video surveillance business has a long history. The traditional application is in the field of security and is an important means to assist the public security department and related management units in fighting crimes and maintaining social stability. With the development of society, the continuous improvement of computer technology, image processing technology and mobile communication technology has made it more and more possible to realize the functions of remote scene image, video monitoring and remote control. In occasions where traditional video surveillance such as water conservancy, entertainment, and medical treatment is difficult to meet the demand, new security surveillance and operation management methods are provided.
Hongdian wireless 3G video monitoring system is based on the application of H.264 video codec technology, combined with wireless communication transmission and remote control technology, has independent intellectual property rights, supports WCDMA/CDMA2000 (EVDO)/TD-SCDMA full standard 3G mobile communication network, so Long-distance, cross-regional and large-scale remote video surveillance has become a reality.
Network topology diagram
System composition
This system mainly includes three parts: front-end equipment, enterprise client, and video service platform
Front-end equipment
It is mainly composed of cameras, microphones, DVS video server (H3224/H3225) and industrial application RTU equipment. The DVS video server is an integrated device for 3G wireless transmission and audio and video encoding. It encodes the audio and video signals of cameras and microphones and transmits them to the monitoring center through the 3G wireless network; the industry application RTU is a data collection terminal, and DVS can provide a transparent channel for RTU. The TCP/IP connection transfers the data collected by RTU to the application platform of the data center, and uses OSD technology to superimpose the data collected by RTU on the real-time transmission image, making the perfect combination of video monitoring and data analysis.
Enterprise client:
The enterprise client is a video browsing window that supports multi-user simultaneous multi-screen browsing. It is used to play the audio, video and pictures transmitted by the front-end digital video server to play a real-time monitoring role.
Video service platform:
It is mainly composed of a central management server, a registration server, a forwarding server, and a storage server. The central management server is the core of the business system, which manages users and equipment; the registration server is used for equipment registration verification; the forwarding server mainly forwards audio, video and image data; the storage server user stores front-end historical audio and video information.
Main functions of the system
Hongdian wireless 3G video surveillance system provides users who use video surveillance services with the operation, use and configuration management of various business functions through the client. The main business functions and management functions are as follows:
Real-time audio and video browsing:
Through the enterprise client, the audio and video information collected by the front-end equipment can be browsed in real time on a single screen and multiple screens.
Timed snapshot picture browsing:
Through the enterprise client, you can browse and query the picture information regularly captured by the front-end equipment in real time.
Audio and video storage and playback:
The system supports front-end SD card recording, hard disk (above 2000GB) recording and other local storage and storage server back-end storage functions. It can store a variety of historical audio and video backups, and playback and store the recordings through professional playback software.
Alarm linkage:
After the alarm event is triggered, the system automatically executes the pre-set alarm plan actions, such as flashing warning lights, camera cruise or turning to preset points, front-end equipment video recording, snapshots, etc.
System Management
Powerful user management, device management, and network management functions; support multi-user and multiple rights management, support device addition, deletion, and modification; provide configuration management, alarm management, security management and log management.
Other functions:
Support GPS positioning, WIFI, wireless router Internet access, audio intercom, DTU transparent transmission, PTZ automatic cruise and preset position control, motion detection, switch alarm, SMS wake-up, timing switch, TV wall, etc.
System typical application
Highway & urban road traffic monitoring:
Highway and urban road monitoring is an important part of the field of intelligent transportation, and it is also the main application direction in the field of security monitoring. As an indispensable subsystem of the public security traffic command system, the emergence of electronic police can greatly alleviate the increase in traffic accidents and police force caused by violations. To reduce the contradiction between low and high labor intensity of police personnel, reduce traffic accidents, and achieve the purpose of reducing reproducible congestion in the road network, alleviating congestion, and improving travel efficiency.
Car mobile video surveillance:
Wired video surveillance has the disadvantages of being unable to maneuver, unable to respond to emergencies, unable to move surveillance, and have blind spots in coverage. The use of 3G vehicle mobile video surveillance systems has become the best solution, which complements the established wired video surveillance systems. Real-time understanding of on-site situation development and control conditions, play an active role in dynamic patrol, emergency command, law enforcement supervision and other actual combat, and provide commanders with a comprehensive decision-making basis.
Public transportation monitoring:
By installing a video surveillance system on public transportation, the management center can know the situation of the people in the vehicle and the operation of the vehicle at any time, and carry out the dispatch of the vehicle in time. Some disputes in the car are resolved through video evidence collection; for criminals transferring on the way, the network can be used to obtain video recordings, which will bring the criminals to justice in a short period of time; for special situations, a linked alarm can be used to protect passengers to the utmost extent Safety of life and property.
Video surveillance on project construction site:
Engineering construction management departments need to effectively supervise many construction sites (especially remote areas), promote the progress of construction projects under the premise of ensuring safe production, improve management efficiency, increase supervision and implementation, and save management costs. Realize the management of construction project image files, carry out on-site monitoring, online supervision, and early warning and correction of high-risk operations on the site, which can form a comprehensive coverage, real-time monitoring, efficient operation, convenient and quick safety production information management platform, and reduce quality and safety accidents. Happen, achieve efficient supervision of strategic planning and decision-making.
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