ZTE Liwei Safe Campus Solution
Strengthening the campus security and prevention management, maintaining the normal security environment of the campus, improving the school ’s modern teaching management level, installing a network monitoring system on the campus, strengthening the monitoring system on the key parts and linking with the alarm system have become the consensus of most campus technical defense construction . Different from the video surveillance system of general enterprises, campus security construction has its own characteristics. Therefore, the construction of campus security surveillance system needs to meet its own needs. Generally speaking, the construction of campus video surveillance system has the following characteristics:
There are many monitoring areas: the school is crowded and requires monitoring to every corner of the campus. Therefore, entrances, exits, outdoor plazas, playgrounds, activity venues, green spaces in the school, parking lots, surrounding buildings, corridors in the building, halls, ceilings, elevator rooms, laboratories, classrooms, libraries, finance Monitoring cameras are required in rooms, data rooms, computer rooms, warehouses, power distribution rooms, boiler rooms, etc.
Large monitoring area: The campus area of ​​the school is generally large, there are many monitoring points, the lines laid by the network are long, and the routing is complicated. The system is required to support multiple wiring methods. It is best to use some of the reserved backbone lines and distribute them reasonably to each monitoring area; or use the campus network to plan a relatively independent logical private network to spread the network nodes in the area. , To facilitate construction and maintenance.
The monitoring picture is clear: the campus monitoring requires that the resolution of the monitoring video image is at least D1 or megapixels and above, especially the monitoring video needs to see the details of the monitoring object, improve the accuracy and efficiency of forensics, and expand to Other business applications and management applications.
Different monitoring environments: the functions of various places and areas on campus are different, indoor and outdoor, temperature and humidity, lighting conditions, location of monitoring points, monitoring range, monitoring density, power supply conditions, wiring conditions, etc., so they need to be based on different applications The environment chooses cameras with different adaptability.
System linkage alarm: The monitoring system must have a motion detection function, which can set a reasonable detection alarm strategy for the special requirements of the area and time period, and upload the alarm situation to the network monitoring center through the network, and automatically switch the image to the scene At the same time, sound and light alarm signals are issued, and automatic video recording, automatic mail sending and uploading real-time video files, etc., are convenient for taking emergency measures in time.
Prevent campus violence: When campus violence or human judgment may occur, operators at all levels can actively send alarm trigger signals to prompt security personnel to rush to the scene; at the same time, emergency alarm buttons can be installed in key monitoring areas and security rooms, manually Touch the emergency button to call the 110 alarm center, prompting the police force to be in place in time to prevent or stop school violence.
Strengthen evidence collection after the event: During the school, students need to record all monitoring points, and according to actual needs, set up all-weather recording and triggering recording and other different recording strategies to facilitate the proactive evidence in the event of an accident or personal injury; Set the corresponding recording strategy for the openness and security level requirements of different areas.
Multi-system integration: make full use of video surveillance information resources, network management platform, strengthen the integration of security surveillance and perimeter prevention, access control, electronic patrol, video conference emergency coordination, fire protection, and other special application systems to promote system information sharing and Combination to form an organic whole, combined with the daily work of the school, improve the overall function and efficiency of the system, and maximize the role.
Expansion of application range: For many colleges and universities now have multiple branch campuses, the monitoring system of each campus needs to be multi-level networking and aggregation to strengthen the daily management and flexibility of the entire school. At the same time, the use of video surveillance systems, especially high-definition, low-stream video sources, with special functions such as audio collection and intelligent tracking, to achieve the application needs of distance education, multimedia teaching, electronic supervision and other applications.
Simple implementation and maintenance: the implementation of the system should reflect the characteristics of the network, the device can be configured and managed locally and remotely through the IP address; the wiring uses tree network routing, and the POE power supply technology should be implemented as much as possible to save wire costs and implementation difficulty; the entire The system adopts a distributed deployment and centralized management system architecture, sets multi-level management authority, rationally allocates system resources, and improves the management efficiency and security.
Above, we analyzed the characteristics of campus video surveillance system construction. Below, the editor recommends two campus video surveillance solutions for you.
ZTE Liwei Safe Campus Video Surveillance Solution
Based on a broadband network, the solution connects distributed and independent on-site collection points to achieve cross-regional, unified monitoring and unified management, providing a new and intuitive safety management for primary and secondary schools, kindergarten security personnel and education management departments Tools have become an effective means of supervision and management resources. In addition to video, audio and various alarm signal remote collection, transmission, storage, alarm and other business functions, it can also effectively solve the problems of today's network video surveillance systems, and has high quality, wide coverage, large capacity, multi-service, Can be integrated, easy to manage, new technologies, Turn-Key services and many other advantages.
system structure
Starnet Ruijie Campus Video Surveillance Solution
The system adopts a multi-level structure design, and schools and district / county education bureaus, municipal education bureaus, provincial education bureaus and other higher-level leading departments form multi-level monitoring networks. According to the scope of the area under their jurisdiction, the leading departments at all levels have the right to call the surveillance videos of all subordinate units to supervise and manage the safe campus work of the subordinate units, and the system can be connected with the city monitoring and alarm network system of the public security department. The system can transmit the video of the crime scene to the public security organ as soon as possible, deploy relevant police resources in time, quickly handle campus cases, and effectively avoid further deterioration of the case.
According to different school scales, the system design is divided into Class A school campus monitoring program and Class B school campus monitoring program.
Class A schools refer to large-scale schools with large numbers of teachers and students, or well-known primary and secondary schools. The school itself has a strong security team and professional and technical personnel. In the design of the Class A school monitoring system, the core equipment is the ZXNVM I1000 multimedia center unit with higher processing capacity and higher reliability. Complete the school monitoring system user and configuration data management functions, and at the same time realize the interconnection of the school monitoring system and the school communication system, send the information of students entering and leaving the school to the school communication system, and send the relevant text messages to the students' parents through the school communication system. Time for students to enter and leave school. School security personnel can watch live video and video content in real time by monitoring the business desk (PC) or TV wall, and can also perform a variety of playback task management, voice scheduling command, alarm linkage and other services.
Class B schools refer to small and medium schools or kindergartens with fewer teachers and students. Considering the objective conditions of the class B school, in the design of the class B school monitoring system, the core equipment uses the ZXNVM S5000 multimedia access unit with simple networking and easy operation. It can be connected to multiple alarm input signals, and equipped with corresponding number and parameters of infrared camera probes to complete the safety protection work of the school wall. At the same time, the device can be connected to a monitor to display real-time monitoring video and playback video on site. School security personnel can simultaneously browse 16 channels of video information through the device to meet the needs of small and medium-sized school security monitoring.
Starnet Ruijie Campus Video Surveillance Solution
Now the school generally has the following characteristics: large area, scattered buildings, large number of people, few administrators, many schools have branches, and another is that many school buildings are in disrepair, coupled with poor self-protection awareness of students, there is a great hidden danger. In recent years, the state has clearly stipulated that key areas of colleges and universities must take corresponding technical precautions, and some areas have also set clear requirements for monitoring coverage. In addition, with the continuous growth of the number of colleges and students, the difficulty of management has increased, unexpected incidents have become more and more frequent, and the superiority of technical defense measures in enhancing the safety of colleges and universities has become more and more significant. Starnet Ruijie Network Video Surveillance System is composed of five parts, namely video acquisition and coding system, video transmission network system, network video storage system, network video display system, network video management system.
solution
1. Video capture and compression system
The network video acquisition and encoding system uses an integrated network camera. The selected network camera directly encodes the video signal and connects it to the network, so that the collection, encoding and compression of the video signal are completed directly in the camera; except for the network high-speed dome camera and The zoom integrated network gun also needs a separate power supply. All other network cameras are directly connected to the network through a single network cable, and POE power is provided while the video signal is transmitted. The back-end management system recognizes each device by the IP address built into the camera, and after finding the IP address of the corresponding device, each camera can be managed and controlled separately.
All monitoring points are compressed and encoded using M-JPEG, MPEG-4, H.264 and other compression methods, and the video quality reaches the high-definition effect of FULLD1 and above; campus entrances and exits are equipped with intelligent high-speed domes, with automatic positioning, automatic cruise, and preset positions 〠Set cruise trajectory and other functions, with low illumination function, with the help of street lights to achieve 24-hour monitoring, high-speed cruise; at the same time, install ultra-wide dynamic gun machine at the entrance and exit of the vehicle, in the case of large contrast of light conditions, achieve Monitoring and monitoring of vehicle access conditions and vehicle salient features. The entrances and exits of various buildings are very different due to the indoor and outdoor light, which is prone to backlighting. Ultra-wide dynamic network guns are installed. The staircase has a close monitoring distance and a relatively fixed monitoring range. A day and night hemisphere with integrated wide-angle lens can be installed Web video camera. Indoor main corridors and channels are equipped with infrared integrated network guns to meet the monitoring needs of indoor light changes, ultra-low illumination, and narrow and long ranges. The hall in the building is a place where people gather and is directly geographically connected to the entrance and exit. Considering the factors of larger monitoring range, high-speed network dome cameras are installed to achieve large-scale monitoring and moving point monitoring.
Video transmission system
2. Video transmission system
The transmission architecture is the "neural network" of the network monitoring system. It guarantees the stability of the system, and its scalability should also meet the expansion of the system in the next few years. According to the above requirements, the entire network system reserves at least 50% of the system redundancy. I. At the same time, in the network design, it can cooperate with the management platform's own rights management function, use network security technologies such as VLAN and ACCESS-LIST to logically classify network monitoring points in different areas, and apply access control policies to restrict or release the resource sharing process In, there may be a network on and off state.
In addition, considering that there may be remote users or users of higher-level management units to browse or operate the main domain network, so design the relevant configuration of network exit and exit security. Set up to ensure internal network security.
3. Video storage system
In the campus network video surveillance solution, the storage time of each channel of video surveillance video is generally 24 hours * 30 days; the resolution of the SD camera video image is FULL D1 (720 * 576), the code stream is 1.2Mbps, and the frame rate is 25 frames per second; The resolution of megapixel gun-shaped camera video images is 1280 * 720 or above, the code stream is 2.5Mbps, and the frame rate is 30 frames / second. Moreover, the cost-effectiveness of large-capacity hard drives in the market is gradually improving. You can choose the current mainstream NVR network storage device in the storage field, 2Tbyte SATA industrial-grade hard drives, as the main storage medium.
4. Video display system
The construction of the modern general control center computer room must not only be practical but also elegant. The design of the display system is an important part of the layout design of the computer room. According to the number of monitors and considering the future expansion needs to increase the display, and then design the LCD wall and console according to the size and orientation of the computer room. The layout of the display wall and the console in the general computer room can be seen from the door of the computer room. A group of beautiful and beautiful display walls can be seen. The visual energy is one. A group of consoles are arranged in front of the TV wall. The structure and the like should be coordinated with the display wall.
The construction principle of the monitoring center computer room is based on the actual area and shape of the monitoring center computer room, and strives to be beautiful, generous, ergonomic, and at the same time can fully reflect the user-specific humanistic atmosphere. The principle of system control is simple and easy to learn, system configuration and control are separated to avoid misoperation, and a central control system with simple operation and stable system should be built as much as possible. When designing and selecting a video display system, we should note that the display device is a part that directly faces people for a long time, so the relationship with people is closer, not only must be beautiful, have visual impact, but also be environmentally friendly, especially not affect Human health.
5. Video surveillance management system
The comprehensive management platform requires an open and compatible platform system that can achieve mixed management of digital, voice, and video. As the core part of the monitoring system, users can build the optimal monitoring system around the integrated management platform and combining project requirements Program. The comprehensive management platform is required to be developed based on the C / S architecture and is compatible with the B / S architecture, enabling unlimited expansion. The integrated management platform system can centrally manage video, audio and various data, and can be integrated with access control, fire protection, security, scheduling, conferences, building automation, and other systems to realize the docking of the network video surveillance system with other systems and various data. Associated application.
System functions
Monitoring function
This system can manage more than 15,000 channels of video at the same time, and supports a variety of mainstream mass storage methods; the server can be stacked and the number of video channels can be expanded to unlimited, enabling ultra-large monitoring and management. It can monitor, record and display all cameras in the video surveillance private network in real time. Through advanced coding, storage, and transmission technology, remote images can be connected to local display, control, and storage to achieve remote monitoring in a true sense.
Video management
Provides three recording mechanisms: plan, manual, and alarm recording. All video signals are stored on a digital hard disk recorder in a centralized digital area; megapixel video storage format is supported; video supports multiple query functions, such as: query video by time, video by time Time query, query by event. At the same time when the video is played back, the relevant information of the video can be superimposed on the image. Video playback can realize multi-channel video playback at the same time, and support 16 segments of a single video file synchronous playback. At the same time, when an emergency occurs without prior recording, the user can immediately look back at the occurrence of the event within the previous 10 minutes. The video is exported as a universal media file and can be played using common players.
Content-based video retrieval and analysis
Content-based video retrieval and analysis
Users can search and analyze the video files by randomly selecting the area to be analyzed and custom intelligent recognition rules in the video screen, including abnormal intrusion, abnormal departure, stay alarm, disappearance, fast running in the area With the definition of multiple recognition rules, even in a large number of video files, the analysis results can be obtained quickly.
Electronic map function
The management system electronic map supports users to import common format picture files as electronic maps, and mark the monitoring points on the map according to the position of the monitoring camera by dragging and dropping. Click the monitoring point picture to view the real-time image of the monitoring point, electronic map The camera icon in can correspond to the actual camera number of the monitoring point and the monitoring angle. The multi-level electronic map can be clicked on a building on the monitoring map to pop up the distribution map of cameras in the building. It is easy to switch between the areas, and the electronic map supports the "one-key positioning" function of the alarm camera.
Digital matrix function
The monitoring points can be grouped in advance and combined with pictures to realize multi-picture group automatic switching and round robin display; real-time display of multi-picture mode can be performed on the client, and the view mode can be freely selected and customized at any time. Through the video monitoring software, users can control, switch, and browse all camera images separately. It can also enlarge any image to full-screen display, and perform digital zoom and digital. At the same time, the monitoring software should be able to customize the split display of any screen of the TV wall, and support switching any video source to the specified screen.
control function
The implementation of the hierarchical management function of control authority, all operations can only be completed under authorization, that is to say, only users with authority can operate on the corresponding equipment. Viewing the monitoring screen, video playback, device control, and software settings all require corresponding permissions. The control authority of the video monitoring system implements sub-control management by area. The management personnel of the sub-control center can only control cameras in this area or function area. Instead of controlling the signal from the central control center. The general control center is responsible for the management of all regional security monitoring around the clock.
Linkage function
The management platform and network hard disk recorder support access to multi-channel alarm switch and motion detection to realize alarm linkage function, and trigger video recording, sound and light alarm, snapshot, log, SMS, voice dialing, mail, FTP upload, hotspot window, PTZ Alarm strategies such as automatic positioning and multi-point simultaneous response; support alarm linkage between multiple systems such as video surveillance systems, access control alarm systems, perimeter prevention systems, fire alarm systems, building automation systems, and power environment monitoring systems.
Log function
Record user logs, system logs and alarm logs, log management classifies logs, provides a convenient query mechanism, and users can easily find the logs they want to view. Users can also manage the logs they are interested in by subscribing. If a certain type of log is subscribed, then at the moment when such a log is generated, it will be notified to the subscribed user according to the user's subscription method, so that the user will not Wherever, you can understand the system operation and alarm status.
Compatible with multiple operating systems
The management platform is developed based on LINUX, and the client is compatible with the Windows operating system. Can provide secondary development API interface, support common protocols, facilitate third-party application integration, easy to expand and upgrade. Realize application customization, satisfy rich linkage applications, and comprehensively integrate interactive control with other business systems; can be compatible with video capture devices of various brands and multiple compression formats at the same time.
Inspection function
In order to timely understand the operation status of the monitoring front-end equipment and maintain the monitoring front-end equipment, the browsing terminal software supports the query of the manual and automatic inspection results of the monitoring front-end equipment; the content of the inspection mainly includes whether the monitoring front-end is online and the image of the monitoring front-end Whether it is lost, whether the monitoring front end is normal and whether the monitoring front end with recording function is recording normally, etc. If it is found that the device is disconnected, powered off, or the image is lost, an alarm message will be generated to remind the user.
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