According to the demand of safe city construction, the project can be configured with bullet-dome linkage system (the so-called Bullet-dome linkage refers to “one Bullet and two dome”, where “one bullet” is a high-definition network camera and “two dome “The system can help security personnel in safe cities to quickly obtain early warning information under various pre-set prevention requirements and needs, combined with advanced video surveillance and behavior analysis technology, to achieve the macroscopic scenario of the movement of the target can both “see The system can be used to achieve “see”, “see clearly” and “catch” in macroscopic scenes, so as to achieve rapid and effective handling of emergencies.
Dual lens linkage system: solving the problems in large scenes
1、System Introduction
Dual lens linkage system uses advanced image recognition and processing technology to achieve panoramic monitoring of large scenes at high points, with moving target detection algorithm, any moving target within the monitoring range in turn, single, continuous close-up tracking and capture the target details feature information, and video recording of the entire target trajectory and process, and then video analysis to achieve human-vehicle separation. Greatly improve the practicality and efficiency of the security system, effectively solving the traditional video surveillance in the “see, see incomplete, see” problem.
The Dual lens linkage system uses video tracking and analysis algorithms, not only in the scene can “see the whole, see clearly” and can be more efficient on suspicious events and suspicious people / individual targets to capture the alarm, so as to make up for the omission of human monitoring phenomenon.
The front-end of the Dual lens linkage system uses megapixel HD network gun cameras to monitor the panoramic target, megapixel HD network dome cameras to track the target of interest, and the back-end has a database to store important information about the target, including trajectory, characteristics, time, and NVR to store the target motion video. In the field of view covered by the wide-angle gun camera, the system can be set according to the user’s actual needs of ordinary alert area, key alert area and shielding area, the alert area can detect up to sixty motion targets and track two detection targets at the same time. The user can flexibly select manual tracking mode, automatic tracking mode and manual intervention mode under automatic tracking for the detection targets in the alert area.
The intelligent video analysis algorithm will separate people and vehicles from the moving targets in the alert area, and the total number of moving targets in the alert area will be counted to detect and analyze the targets with sudden changes in behavior.
2、System composition
Dual lens linkage system consists of a management server, analysis server, video management platform, client and front-end camera five parts.
(1) System management server: The system management server has the functions of Dual lens equipment management, analysis service management and calibration data management. In order to ensure the stability of the system and high availability, the use of dual hot standby form. The system management server is composed of the host and the standby machine, and the host and the standby machine are configured by the dual machine hot standby software Rose ha, so that when the host machine fails, it is quickly switched to the standby machine, thus ensuring the normal operation of the system.
(2) Analysis server: The analysis server gets the video data in the specified scene from the video management platform, analyzes the motion targets in the video data in real time and provides the analysis results for the client. A server can be two sets of Dual lens linkage system (a bullet and two domes) video data for real-time analysis.
(3) video management platform: video management platform is responsible for taking video data from the front-end camera and code stream forwarding, providing video data for the management server, client and analysis server;
(4) client: the client is responsible for displaying the detection and tracking results obtained from the analysis server and control the motion targets in the specified area. The client is divided into safe city client and display client, dual lens linkage display client through OCX control and safe city client connected.
(5) front-end camera: the front-end camera is responsible for collecting video data of the designated area and providing video data for the video management platform. Front-end cameras are generally composed of a bullet and two dome cameras.
3、System function
The main function modules of the dual lens linkage system are regional monitoring, playback video, PTZ control, track display, traffic statistics, set the alert area, alarm display control. The functions realized by each module are briefly described as follows.
(1) Regional monitoring: click the monitoring area module, select the monitoring area in the drop-down list, the system will track, detect, capture and other functions of the specified monitoring area;
(2) Playback video: The system will store the monitored video, and the playback video module will retrieve and play back the original video through the selection of time period;
(3) PTZ control: the direction, focal length and speed of the tracking dome are set by the PTZ control module;
(4) Track display: show or hide the track of the moving target entering the monitoring area;
(5) Traffic statistics: statistics on the number of moving targets passing through the key area;
(6) Set alert area: set and display the detection area, key area and shield area in the bullet screen;
(7) Alarm display control: for the set area can set the behavior rules and display the alarm information.
dual lens linkage system has great potential in the future
Dual lens network camera linkage system in the safe city security monitoring has outstanding significance and value, the system to achieve the macroscopic scene on the movement of the target can be “visible”, “see clearly” and can be “caught” function. Catch” function, to achieve a true sense of modern security intelligence. Therefore, the gun ball million HD network camera linkage system in the construction of safe city, will be widely used
