System overview
1.1 system construction background and necessity
Peace is the guarantee of the reform and development, is the premise of harmony. The zoo as a scenic landscape or a major bright spot, the image of the city tourism products with good marketing strategy for the zoo spots or cities attract more tourists, bring enormous business opportunities, promote the healthy and continuous development of city, so the importance of their marketing is beyond doubt.
The zoo much utilizes both captive and free-range, especially the free-range security problem is more outstanding. The zoo for visitors to congregate, and a large part of for minors in the crowd. Appearing in recent years, wild zoo a animal attack, according to this situation is to strengthen security work, to increase the important parts of the video monitoring can effectively use the problem.
1.1.1 monitoring requirements
Security monitoring division:
Forest zoo scenic area is divided into three regions, namely the captive area (issue), free-range area (phase ii) and the office area. Vehicles into the scenic spot and scenic parking lot management entrance guard seven points.
A: the number of security surveillance camera (total 155)
1, captive breeding area (a) : the panda enclosure and ecological bird pavilion, size, birds hall, comprehensive animal venues, raptors area which twelve and three parking lot, and the entire captivity area design main road, a total of 46 security surveillance cameras
2., free-range area (phase ii) : divides cableway, parking lot, square, ticket office, the elephant ring, children's play areas, forbidden zone, kangaroo, leopard, Wolf, wild dogs, long spirit area and main roads, a total of 19 district design 109 security cameras
1.1.2 video storage needs
1, the video time required is 15 days
2, video effect for hd 720 p (1280 * 720)
3, outdoor part adopts the infrared camera
1.2 design principles
In terms of system design and equipment selection, follow the following principles:
Advancement: the system should be to meet the requirements of reliability and practicability of the premise of the most advanced system. System should be a conform to the development trend of distribution system; Especially in accordance with the latest computer technology and network communication technology development trend and application of mature.
Security: due to transmission through the network monitoring image, so its safety is also very important. Receive the sending server to have multilevel password function, transmission of image formats to browse by common software, can't modify it. Remote monitoring terminal have permissions and password functions, to ensure the safety of the system.
Stability: should use mature and stable products, video acquisition and codec equipment with embedded products, should be able to ensure system 7 x24 hours of uninterrupted operation.
Reliability: it has design original video traffic management functions, guarantee the network flow. May apply multistage operation rights management, guarantee the unified, standardized management. The system has the self-diagnosis function. The system average trouble-free working hours MTBF > 10000 hours.
Standardization: should follow the domestic and international general standards. Network video monitoring system is to implement on the network system of audio and video transmission and sharing. This system adopts the product follow the network protocol (TCP/IP) and the requirements of transmission standard.
Extensibility: using real-time monitoring scheduling network architecture, internal adopts the configurable method for centralized management, when increasing branch and other extensions system point to point, just as adding a new external nodes on the network.
Due to user demand will continue to grow, after monitoring number will expand, just increase the front-end equipment, you don't need to add additional equipment, in order to protect the user's investment.
In order to fit the requirement of the future system expansion, reserve system in the function on the basis of the existing're likelier to carry enough equipment for system expansion. In the system control unit (hardware and software) USES the centralized structure, technical measures, such as embedded can be convenient and flexible to expand, the adaptability of guarantee system in the future. Flexible network mode, and convenient by the increase of point to point.
Several video monitoring system can be used as a subsystem of a larger video monitoring system, according to a multistage network way, form large-scale monitoring network, high level of the monitoring center can manage and monitor the operation of the low level of the monitoring center.
Economy: on the premise of ensure complete system function, as far as possible choose cost-effective products, reduce the overall cost of the system.
Usability principles: system powerful, friendly interface, software design, humanization, easy to master, operation and use by ordinary users.
Maintenance principle: the system can basically in a state of free maintenance, and artificial maintenance available in remote operation, simple maintenance, easy management.
1.4 design guidelines
Specific design of the system shall be in "practical, reliable, advanced, economic" as the guiding ideology.
1, with practical give priority to, in the process of engineering design and implementation, always put the actual demand of units used in the first place, be flexible, easy to use. Select practical series products, modular structure design, can satisfy the needs of current and can be extended leave room for future system development. Monitoring coverage and image quality must meet the demand of a line of actual combat. Image real-time monitoring and playback query interface friendly, system installation, use and maintenance is simple.
2, reliable refers to the hardware and software of the system adopts shall have corresponding qualifications of software testing center, product testing center testing, quality, stable performance, can continue to run effectively. Reliable to give attention to two or morethings arrives at the same time the development of the future, the mature and advanced technology and equipment, strive to make the system has good openness, extensibility and longer life span. This system all adopt international standards of software and hardware interface, as with other system coupling laid a good foundation.
3, is advanced in the system overall scheme design, must have advanced ideas, overall planning, the use of advanced technology. Advanced nature is the key equipment must be used at home and abroad advanced equipment, to ensure that the 3-5 years not fall behind. Such as the front camera equipment adopts advanced camera. Mature, mainstream technology was used to construct system platform, fully balancing demand and the development of technology, give full consideration to the connection with other systems, construction of extensible, open platform.
4, the principle of economy refers to the system USES the products with good performance and price as far as possible, both can satisfy the actual needs, but also try to reduce the cost, at the same time in the process of systematic design, optimization design, to facilitate future maintenance, greatly reduce the system cost. In ensuring the premise of practicability, reliability and advanced nature, pay attention to the periodic system construction cost and investment, to coordinate the development, construction technology and application mechanism of ensure system benefits.
1.5 system feasibility analysis
Technology to prevent digital products have been implemented, the product is mature, the network security of the system has been put into use at home and abroad, a large number of, therefore, the project is based on the core technology is completely feasible, mainly is reasonable apply, scientific integration problem.
The involved key technology in the project are as follows:
Digital media technology, the domestic media record type dimension products already going digital, from the early MJPEG to mpeg-1 to mpeg-4 (SP, ACE, AVC) are very mature digital products. Especially the mature of MPEG4 algorithm and h. 264 algorithm of continuous improvement, to save the hard disk storage space, extension of the recorded time provides basic technical guarantee.
Embedded technology, after years of development, the system level of embedded products have been mature and widely used in many fields, the security of the product system platform embedded products have been mature.
Hd video monitoring platform for network camera + center has been applied in the security industry, itself has been praised by the industry users, and the network camera, IP SAN storage devices and digital surveillance platform is choose the product that zhejiang dahua technology co., LTD., there are no compatibility problems, and has made the market use validation, quality reliable, stable operation, the company has distribution service agencies throughout the country, after-sales service guaranteed.
System USES hd webcam this way, the effective breakthrough in the original simulation monitor image quality bottleneck, highest can reach 1080 p or higher 300 w, 500 w, to further improve the monitoring level, monitoring quality has improved, too.
