8. Work plan:

? 1 week graduation internship (1)? The second week graduation practice (2)

? The third week needs analysis, start writing graduation design instructions? The fourth week system feasibility analysis

? Week 5 Installation and use of linux operating system? Week 6: Build a development environment and practice operation? Week 7 Embedded linux Kernel Compilation and Transplantation? Week 8: File System Making and Transplanting? Week 9 Programming Exercise 4: Graduation Design of Video-on-Demand System (Thesis) Opening Report Title asp-based Video-on-Demand System Professional Name Communication Engineering Course No.078204 132 Student surname Wen Hengxing Instructor Zhang Fan Completion Date: 20 1 1.

1. Basis and significance of topic selection: With the rapid development of information industry dominated by the Internet, a profound change is taking place in all fields of society.

And this kind of information network has flooded into thousands of households in China. With the continuous improvement of network information, network film and television has also changed.

Changing the traditional way of watching TV dramas, without any restrictions, staying indoors and other advantages, is increasingly welcomed by users.

Attach importance to.

With the widespread popularity of computer networks in China, video-on-demand is a new media model developed on the original basis in recent years.

On the basis of browsing static information such as words and pictures, multimedia on-demand services such as video and audio dynamic browsing have been added.

Online video-on-demand system is a management information system with dynamic interactive function, which provides this service and realizes interconnection.

Online cinema on the internet. Users can browse video information online and click play according to their own preferences. In this way, let users be enough.

You can watch movies at home and browse the web anytime and anywhere, getting rid of the traditional time limit of watching TV.

The limitations of CD-ROM resources have greatly enriched people's online life.

Second, the domestic and international research survey and development trend

1. Technical feasibility study

The main technical difficulty of the system is to solve the number of concurrent streams. Proprietary video servers launched by many large foreign companies can support them.

Hundreds of concurrent streams, but the price is quite expensive. Several domestic manufacturers use high-end servers as video servers, which can

Support dozens of streams, with a maximum of 100. The hardware cost of replacing the proprietary video server with a server is greatly reduced, but a single server

The number of concurrent streams of servers and the limit of hard disk expansion are too small to meet the large market demand.

2. Economic feasibility study

The economic feasibility of software refers to whether the economic benefits brought by software are equivalent to the investment required for development and design.

Whether it is appropriate or not depends on whether this software can really bring enough economic benefits to users. The system we developed is just a test.

Design considering system development cost. The development of this system is completely feasible in economy. It doesn't take much to develop this software.

Money, and it is designed independently by individuals, can save a lot of money and improve their practical ability. Based on the above technical characteristics, in order to reduce the cost, we use a pc server as a video server and provide pc services.

The performance of the compiler is still improving, and the number of concurrent streams supported is also increasing. The scheme of pc server as a video server is gradually changing.

Steps to replace the previous proprietary video server. In order to solve the problem of multiple concurrent streams, we adopt multiple pc servers in the form of clusters.

Through the control gateway to complete the coordination between servers, improve the utilization rate of the system. The technology of controlling gateway and cluster server is as follows

Our technology adds value. In addition, due to the cluster form, we don't require the pc server to reach the maximum number of streams, we can.

Using low-grade pc server and ide hard disk can improve the cost performance of a single video server. After our prediction

Research and test show that the bottleneck of the server is not cpu, and low-grade cpu and motherboard can be used. Adopt ide raid card and 7200

Servers that switch to ide hard disks can still support thirty or forty concurrent streams. After pre-research, the technology of controlling gateway is also feasible.

Yes The overall scheme of the system is developed by itself and runs on the general software and hardware platform, which has strong flexibility.

Iii. Research content and scheme:

(1) Research contents:

1. Design of user management system database;

2. Multifunctional VOD system based on browser/server mode.

(II) Implementation plan

1. System architecture and implementation method

1. 1 target design

The function of online video service system is divided into foreground function and background function.

(1) Front desk function:

Including the basic operations in the main interface, the specific contents are as follows: (1). Movie browsing: users can browse the latest movies through movie classification, click ranking and recent updates.

TV series, various variety shows.

(b) Movie search: users can query according to movie names and movie actors. (c) Movie recommendation: Users can simply and clearly understand the most exciting recent film and television works.

(2) Background functions:

The key point of this system is that different administrators have different rights; Junior administrator (you must log on to the management page); 1. Add movies: you can add movies in each column; Senior administrator (you must log on to the management page); 1. Add movies: you can add movies in each column; 2. Movie management: All movies can be deleted and modified; 3. Classification management: you can add the classification of movies; Super administrator (you must log on to the management page); 1. Classified management: new projects can be created for each column.

The key of this system is that different administrators have different rights. Super user has the highest authority, and can add, modify and delete registered users, and can add or delete movies as needed. The specific functions are as follows:

Junior administrator (must log on to the management page)

1. Add movies: You can add movies in each column.

Senior administrator (you must log on to the administration page)

1. Add movies: You can add movies in each column.

2. Movie management: All movies can be deleted and modified.

3. Classification management: you can add the classification of movies.

Super Administrator (you must log in to the administration page)

1. Classified management: news can be added to each column.

2. Add movies: All news can be deleted and modified.

3. Movie management: You can delete, modify and add various categories and subcategories.

4. Address management can add servers.

5. Film review

6. User management: administrators with different permissions can be added and various administrator data can be modified.

Delete.

7. Error reporting Registration advocates can report that the movie is wrong or cannot be watched normally.

1.2 design concept

1.browser/server structure online video service system, which is characterized by adopting browser/server(b/s) structure to realize online video on demand.

Add, modify, delete and other functions. Client/server (c/s) mode and browser/server mode are two popular database application modes.

Type. Which mode to apply alone will be limited by its own weaknesses. Client/server mode is mainly based on LAN.

Based on the environment, subject to geographical restrictions. The browser/server mode is conducted through the Internet.