First, the program background: The construction of the stadium security monitoring system should be based on the prevention and disposal of emergencies, and realize the emergency linkage and auxiliary analysis and decision-making of the security monitoring system, timely warning and control of various suspicious phenomena and emergencies in the stadium. Compared with other buildings, buildings and other security monitoring systems, stadium security monitoring system has its own special needs:
1. High image quality requirements, control of real-time stadium video surveillance needs to cover the entire stadium and surrounding areas of the stadium, with a large coverage area and high image definition requirements. At the same time, the stadiums and gymnasiums are crowded. When an incident occurs, it is necessary to clearly and quickly see the personnel's activities and changes. The quick response and positioning of sudden scenes requires high real-time video surveillance.
2. High degree of stability and reliability For the stadium security monitoring system, stability and reliability are always placed first. In the design of the system, mature technologies and products should be used, and the key parts are designed to be redundant. To avoid the failure of the entire system or a monitoring point caused by any single point of failure; at the same time, in combination with various equipment detection measures, once a problem occurs in a certain link, the system can find an abnormal event at the first time, and Solve it in a timely and effective manner to ensure that the system can operate stably, reliably, and continuously.
3. The overall safety protection requirements of stadiums and stadiums are generally a group of buildings composed of a combination of multiple functional areas. It is necessary not only to consider the safety and protection needs of the main stadium itself, but also to build a comprehensive, safe and effective starting from the overall construction of sports complexes. The technical prevention system includes video, alarm, access control, fire protection and other subsystems. These subsystems are organically combined to achieve platform-level interconnection and alarm linkage.
4. Emergency linkage and plan handling The stadium security monitoring system should be able to implement intelligent monitoring and early warning of sensitive areas and targets, and handle emergencies in a timely and accurate manner. When a sudden event occurs, the system can quickly find the best monitoring point (camera) from a large number of cameras. At the same time, the real-time image is popped up on the electronic map to observe the event site and track and lock the target. Provide the most intuitive video information for emergency disposal, and according to the pre-set plan for the best handling of emergencies.
5. Platform interconnection and video resource sharing When stadiums are holding competitions, it is not only the security personnel inside the stadium that are concerned about the safety of the venue. Public security, armed police, fire fighting and other government departments need to know and grasp the situation inside and around the stadium in real time. You also need to call video recordings. Therefore, the stadium security integrated management platform should be a standard and open platform, allowing multiple systems to be docked to provide video image resource sharing, meet the requirements of concurrent access for a large number of users, and provide a stable real-time video preview, historical image download And authorized access control and other services. Sports Stadium Security Monitoring System The sports stadium is generally a group of buildings composed of multiple functional units. When designing the overall plan of the security system, it is necessary to proceed from the overall requirements of the stadium and use various security precautions to achieve the goal. Sports center security monitoring system centralized management and control. The stadium security monitoring system consists of the following components:
1) Video surveillance system 2) Intelligent analysis and warning system 3) Access control management system 4) Perimeter and anti-theft alarm system 5) Security inspection system 6) Security integrated management platform II. Video surveillance system Image quality and system of video surveillance system Stability and reliability directly affect the technical level and application effect of the stadium security monitoring system. Therefore, the video surveillance subsystem is the focus of the stadium security monitoring system.
1. Design ideas Adopt HD technology 1) Adopt high-definition video surveillance technology in important parts of stadiums to achieve high-quality video image acquisition, storage and display. For example, a high-definition total solution with a video resolution of 720P (1280*720) or 1080P (1920*1080) is used to meet the needs of complex locations and high-definition video surveillance in sports venues such as dense personnel and high traffic.
2) Adopt digital uncompressed video surveillance technology. This technology not only overcomes the disadvantages of the low quality of analog video images and the attenuation of multi-level cascaded signals, but also overcomes the problem of large delay of IP video images, and ensures high real-time image transmission while achieving high-definition video capture. Can fully meet the needs of practical applications.
2. System Architecture Design 1) Front-end monitoring points: Digital uncompressed HD dome cameras can be deployed in large-scale and key monitoring locations such as stadium entrances, surrounding squares, outdoor parking lots, auditoriums, and pavilions. Regional network, VIP room (area), VIP channel, referee area, athlete area, competition management area, news media area and other key parts can deploy network HD network cameras. For other general office rooms or places where the monitoring range of the room is small and where the requirement for prevention is not high, SD or HD cameras can be flexibly deployed.
2) Video image transmission: The digital uncompressed high-definition video camera has an optical fiber interface and directly accesses the video synthesis platform through optical fibers to achieve high-definition video image coding, matrix switching and output display, achieving high image quality and low transmission delay; IP video The image is connected to the core switch of the monitoring center through the stadium video transmission network.
3) Security Control Center: The stadium's main control center mainly implements centralized management and control of video images, and is composed of various types of application support servers, storage devices, and display control devices. The main control center adopts a video synthesis platform to implement unified switching control, configure a large-screen display wall, and achieve a large number of video image output displays.
4) Security sub-control center: Mainly to achieve the goal of daily safety and management of sports venues. During the closed period, sub-monitoring centers can also be opened to meet the security needs of daily patrols and inspections to ensure the safety of important parts around and inside buildings. .
Third, intelligent video analysis and early warning stadium security monitoring system, should be found in a timely manner unsafe factors, handling emergencies as the main goal. Through video analysis technology, users can preset different alarm rules according to the video content analysis function in different camera scenes. Once the target has violated the predefined rules in the scene, the system will automatically issue an alarm; the monitoring workstation will The alarm information is automatically popped up and a warning tone is sounded. The user can click on the alarm information to realize the scene reorganization of the alarm and take relevant measures.
IV. Access Control Management Subsystems Stadiums generally have relatively complete control of entrances and exits, and the safety requirements of stadiums are much higher than those of general enterprises, so it is recommended to refer to the following design ideas:
Entrances and exits of gymnasiums, studios (rooms) of important parts, entrances and exits of VIP rooms (areas), important goods stores, and finances in buildings are mainly used as control gates, and are divided into professional and public categories. Among them, the professional entrance should be combined with the activity's certificate management system. By reading the information contained in the documents, the identity and the authority can be certified, and the access control and management of professionals (athletes, officials, reporters, and staff) can be conducted; In conjunction with the ticketing system, the audience's admission control and management are performed.
Due to the large number of gymnasium personnel, the entrance and exit control system has higher information transmission requirements. Therefore, the system adopts an Ethernet control system. The front-end access controller passes through the Ethernet access management center, through the entrance and exit control software for management and control, and the entrance and exit control system is simultaneously Integrate with monitoring system to realize linkage between access control and intelligent monitoring system.
V. Perimeter and burglar alarm system The stadium alarm system mainly includes perimeter alarm systems and burglar alarm systems. The perimeter alarm system is the first barrier to the safety protection of the stadium, mainly to prevent illegal personnel from crossing the wall or fence, and to exclude outside insecurity from sports venues. Intrusion detection systems or emergency help buttons can be deployed in important items stores, financial office cash registers, important studios, information centers, monitoring centers, etc. to prevent the theft or destruction of important equipment and equipment in the stadium.
The system adopts a bus system architecture. The front-end detector is connected to the alarm host through the bus module. The alarm host is connected to the alarm server through the IP mode to realize linkage with the video surveillance system. The system architecture is shown in the figure below:
When an illegal intrusion occurs, the detector sends out alarm information. Through the linkage between the central controller and video surveillance equipment, the system automatically turns on lights, sounds, and camera equipment so that the center can keep abreast of the situation on the spot so that security personnel at the stadium can quickly .
Six, security inspection system 1. The electronic patrol subsystem stadiums set off-line or on-line electronic patrol subsystems. On-line electronic patrol subsystems can be set up independently or integrated with on-line portal control subsystems.
2. Explosion-proof safety inspection subsystem The explosion-proof safety inspection system enables real-time, effective detection, display, recording and alarming of prescribed explosives, weapons or other contraband.
VII. Security Integrated Management Platform It is recommended to use a networked platform integrating multiple security subsystems based on SOA system architecture to manage monitoring systems ranging from tens to thousands of monitoring points. The system needs to support the simultaneous access of analog, digital, and digital-analogue architectures, and supports access to various alarm sources such as anti-theft alarms, intelligent analysis alarms, access control alarms, and fire alarms to implement video surveillance subsystems and entrance and exit controls. The integrated management of systems, alarm subsystems, intelligent analysis subsystems and other security monitoring systems is to meet the requirements of step-by-step or one-time unified deployment of sports stadium security monitoring systems, and realize the optimization of the overall system investment.