Design plan for a video surveillance project in a certain university

1 Platform Introduction

The "Global Eye" service is a network video surveillance service provided by China Telecom based on IP technology and broadband networks (Internet, virtual networks, and private networks). This service fully leverages China Telecom's ubiquitous network resource advantages, and through the network video surveillance service platform, it connects the scattered and independent collection point image information to the network for processing, realizes cross-regional unified monitoring, unified management, and hierarchical storage, and meets customers' needs for remote monitoring, management, and information transmission.

China Telecom's "Global Eye" service can provide customers with a new model for flexible video surveillance. Customers can invest little or no money, and use China Telecom's "Global Eye" service platform and service system deployed across the country to quickly build a video surveillance network system covering the whole country, meet the requirements of environmental supervision, safety management, hot information release, multimedia publicity and other aspects, and promote efficient customer management, scientific decision-making and rapid response. While thoroughly solving many problems in future maintenance and operation faced by customers under the self-built model, customers can enjoy synchronous technology updates and reduce investment risks.

The "Global Eye" monitoring system consists of four parts: video monitoring points, monitoring center, "Global Eye" platform, and transmission network. The networking scheme is shown in Figure 1.

(1) China Telecom's "Global Eye" service platform. The China Telecom network video surveillance system central service platform located in the upper left corner of the picture is the hub of the entire system. It is used to achieve front-end and client access, control command forwarding and processing, system and information management, video stream forwarding and storage, etc.

(2) Transmission network: Provided by China Telecom, it uses the ubiquitous network of China Telecom to connect the information collection terminal, central service platform and client to realize network monitoring function.

(3) Monitoring center. The access client and user monitoring center on the right side of the picture are both the client side of the system, responsible for presenting the services provided by the system to customers, including the playback and control of real-time and historical audio and video, user management, service provisioning and management, system maintenance, alarm reception, and video wall functions. Ordinary access clients can be accessed through IE on a PC, which has the advantages of convenient and fast access.

(4) Monitoring point. The information collection end part located at the bottom of the picture includes front-end video servers and cameras. It is mainly used to collect, process and send audio, video and alarm information, and can be controlled by the central service platform through the network to send commands, such as PTZ control, wiper control, etc.

2 Networking

The network design is shown in Figure 2, where the Global Eye platform can use the public network or private network to build a campus monitoring system. In both cases, the Global Eye service platform can be invested by telecommunications companies and rented by users. The monitoring point cameras are purchased or rented by users. Users invest in a computer as a console to manage and monitor the entire network; if necessary, users can also invest in building a monitoring center (optional equipment such as TV walls and multi-channel displays).

2.1 Public network mode

The monitoring platform is built by the telecommunications company. The video server is placed in the telecommunications room and connected to the telecommunications IP metropolitan area network through a high-bandwidth dedicated line. The user monitoring points and monitoring centers are connected to the Internet. Each monitoring point and monitoring center uses optical fiber to access the Internet and access the monitoring platform through the Internet.

2.2 Private network mode

The private network can be a LAN built by the user, or it can be built by renting a telecommunications dedicated line. The telecommunications company will invest in building its own dedicated Global Eye video surveillance platform on the user's private network (the private network requires more than 10 monitoring points to rent, and if there are less than 10 monitoring points, it is recommended to use the public network or build a self-built platform).

3. Monitoring point layout design

The campus of a certain university is large and can be divided into three areas, namely Campus A, Student Apartments, and Campus B. According to the survey, a total of 10 routes and 27 monitoring points need to be installed.

3.1 Campus A

Campus A is divided into two sides: the office area and the teaching area. On the office side, the office gate, dormitory entrance, entrance on the first floor of the office building, and the examination paper confidentiality room on the eighth floor of the office building need to be monitored; on the teaching side, the teaching gate, the interior of the No. 5 teaching building, the No. 4 training building, the No. 3 teaching building, the Department of Social Sciences, and the No. 6 female dormitory need to be monitored.

Camera 1: A camera is installed on the side of the No. 10 student dormitory building to monitor the gate of the office area and the open areas in the courtyard;

Camera No. 2: A camera is installed on the top of the graduate building to monitor the exit of the student dormitory;

Camera No. 3: A camera is installed on the first floor of the office building to monitor the main entrance of the office building;

Camera No. 4: A camera is installed in the examination paper confidentiality room on the eighth floor of the office building to monitor the room;

Camera No. 5: On one side of the teaching area, a camera is installed at the gate on the first floor of the No. 5 teaching building to monitor the gate and open areas of the teaching area;

Cameras 6 and 7: Cameras are installed at two diagonal positions in the courtyard of the No. 5 teaching building to monitor the interior of the No. 5 teaching building.

Camera No. 8: A camera is installed on the north side of the outer wall of Teaching Building No. 5 to monitor Teaching Building No. 3;

Camera No. 9: A camera is installed on the northeast side of the outer wall of the No. 5 teaching building to monitor the No. 4 training building;

Camera No. 10: A camera is installed on the southeast side of the outer wall of the No. 5 teaching building to monitor the Social Science Department;

Camera No. 11: The camera is installed on the east side of the No. 4 teaching building to monitor the No. 6 student dormitory and the mountainside area.

According to the terrain, the above cameras 1, 2, 3, 4 can be grouped as one group, 5, 6, 7 as one group, 8, 9, 10 as one group, and 11 as a single group, and the video signals of the 4 groups of cameras can be transmitted through 4-way encoders respectively.

3.2 Student Apartments

The student apartment is a dormitory area, and the entrance door and the passage behind the dormitory building need to be monitored.

Camera No. 12: A camera is installed in the middle of the dormitory building to monitor the gate and the courtyard of Ruizhi Garden;

Camera No. 13: The camera is installed on the west side of the dormitory building to monitor the rear passage of the dormitory building. Since there are no buildings or poles at the installation location, pole installation needs to be considered.

The above two cameras can use 1-way encoder for image transmission.

3.3 Campus B

Campus B needs to monitor the first floor of the comprehensive building, Mingde Garden (boys' dormitory), basketball court, the area behind the No. 1 training building and the workshop, the computer room on the third floor of the No. 1 training building, the football field, the first floor gate of the new library, the computer rooms on the sixth and seventh floors of the new library, the parking area in front of the new library, the gate and playground area of ​​the slope campus, and the area between the No. 2 training building and the No. 1 and No. 2 teaching buildings.

Camera No. 14: A camera is installed on the first floor of the complex building to monitor the main entrance and the interior of the first floor;

Camera No. 15: A camera is installed on the roof of the southwest corner building of Peizheng Food Garden to monitor Mingde Garden from east to west;

Camera No. 16: A camera is installed at the southeast corner of the building next to the basketball court to monitor the basketball court area;

Cameras No. 17 and 18: Cameras are installed on both sides of the passageway behind the workshop and the first training building to monitor the area. They need to be installed on poles.

Camera No. 19: A camera is installed in the computer room on the third floor of the No. 1 training building to achieve indoor monitoring;

Camera No. 20: A camera is installed on the electric pole in front of the workshop to monitor the road in front of the first training building;

Camera No. 21: A camera is installed on the roof of the southwest corner of the new library to monitor the football field;

Cameras 22 and 23: Cameras are installed in the computer rooms on the sixth and seventh floors of the new library to monitor the rooms;

Camera No. 24: A camera is installed on the first floor of the new library to monitor the entrance area of ​​the new library;

Camera No. 25: A camera is installed at the east corner of the new library to monitor the parking area in front of the building;

Camera No. 26: A camera is installed on the rooftop of the east side of the old library to monitor the gate and playground of the slope campus;

Camera No. 27: A camera is installed on the uphill pole on the east side of the old library to monitor the area between the No. 2 training building and the No. 1 and No. 2 teaching buildings. It needs to be installed on a pole.

According to the terrain, camera No. 14 can be grouped as a single group, cameras No. 15 and 16 as a group, cameras No. 17 to 20 as a group, cameras No. 21 to 24 as a group, and cameras No. 25 to 27 as a group, and the video signals of the five groups of cameras can be transmitted through 5-way encoders respectively.

3.4 Monitoring Center

The monitoring center is located on the first floor of the new library. Since the room is located on the first floor and the air is relatively humid, the college should consider moisture-proofing when renovating to avoid affecting the normal operation of the equipment. The monitoring center needs to lay a 20 Mb/s broadband line and configure a console computer to realize patrol monitoring of each point. If the monitoring center needs to use a TV wall for monitoring, it is necessary to invest in decoders, TV walls, switches and other equipment.

4 Investment and expenses

4.1 One-time expenses

The one-time fee includes: 500 yuan/line (including 1 point), and an additional 200 yuan for each additional point (camera). For lines with material length exceeding 10 m, an additional system integration fee will be charged (the system integration fee is calculated at 10 yuan/m, including the materials and construction costs of video lines, power lines, and control lines). This plan has a total of 10 lines and 27 points, that is, 17 points are added, so the one-time fee is 500×10+200×17=8400 yuan. The cost of the part of the line where the camera is more than 10 m away from the encoder is calculated separately. Here, it is temporarily calculated based on a 100 m line for each camera, that is, the length of each point exceeds 90 m, and the system integration fee is 27×90×10=24300 yuan.

4.2 Monitoring service usage fee

The monitoring service fee is: 1,000 yuan/month/channel (including 1 point), and each additional point will be charged 100 yuan/month. Each channel is given 7 days of remote storage space. The plan has a total of 10 channels and 27 points, which means 17 points are added. Therefore, the monitoring service fee is 1000×10+100×17=11,700 yuan/month, and the annual fee is 140,400 yuan.

4.3 Hardware Investment

(1) One monitoring computer: (Recommended configuration: Pentium 4 1.8 GHz or above; memory 256 MB or above). To be purchased by the user, the reference price is RMB 5,000 to 6,000 per computer.

(2) 27 sets of cameras and supporting facilities: Users purchase or rent telecommunications equipment (when renting, the equipment cost is spread over each month based on the principle of recovering the cost within two years. After two years, no rent is required and the ownership of the equipment belongs to the user).

For monitoring in open outdoor areas, it is necessary to quickly locate the situation when it occurs. It is recommended to use outdoor integrated high-speed ball camera or intelligent variable speed ball camera (such as cameras 1, 5, 16, 21, 25, 26). The above monitoring points need to be installed with poles and cameras installed on the top surface need to be installed with ceiling brackets, such as network points 3, 5, 13, 14, 17, 18, 19, 20, 22, 23, 24, 27, and the remaining network points can be installed with wall-mounted brackets.

If the investment is based on the lowest price, the total price of 27 cameras is: 6,050×6+5,280×7+3,630×5+4,730×9=133,980 yuan; outdoor cameras need to be equipped with 20 sets of lightning protection equipment (three-in-one lightning arrester), each set costs 1,000 yuan, totaling 1,000×20=20,000 yuan; therefore, the total hardware investment is: 133,980+20,000=153,980 yuan.

If the hardware rental method is adopted, the monthly hardware rental for the first two years will be 6,416 yuan, and the annual rental will be 76,990 yuan.

5 Conclusion

Video surveillance systems are widely used in the field of public security and have become an important technical guarantee for public security prevention in some key departments, financial systems, and key places. They play an important role in preventing crime, controlling crime, combating crime, and timely avoiding various dangers. However, there are still some problems with the current status of video surveillance systems, which restrict the further development of community security systems. The specific problems are as follows:

(1) There are many video surveillance system manufacturers and their products are incompatible with each other, which results in unreasonable design of video surveillance systems and poor integration of subsystems, resulting in a waste of investment.

(2) At present, there are few competitive video surveillance system manufacturers in China, and the domestic video surveillance system market relies heavily on imported products. This has led to differences in production standards, system composition, and interface methods for domestic video surveillance system products, making it difficult for the various systems to coordinate well with each other, achieve centralized networking, and achieve the desired intelligent effect;

(3) When setting up video surveillance systems, some departments blindly pursue the superposition of functions, which increases the cost. However, the systems built with high investments are not necessarily practical, and the technology is not necessarily mature. Instead, they increase the complexity of the system and have an adverse impact on the stability of the system operation.

Based on the above reasons, creating a security monitoring platform that integrates remote video monitoring, alarm linkage, recording, equipment access and data collection is the content to be studied in this project.