Campus Network refers to the network in which information devices on the campus are connected to each other. It is a system consisting of computers, network technologies, and application software. It serves school management and education and teaching, and supports remote communication and resource sharing through a WAN connection.
At present, the construction and application of campus network is becoming the key for more and more schools to achieve teaching reform and improve teaching quality to meet the needs of the times for talent training. However, some schools have invested a lot of money in campus network construction, but have not received the expected results. Most campus network functions and resources include software, hardware, and information resources) not fully utilized, resulting in waste and idle equipment. There are several reasons for the problem:
1. Pay attention to hardware investment and despise software resource construction. According to the survey, most of the computer education funds are used in the computer hardware environment, and the software investment is far lower than the hardware investment, and the teacher training funds are even smaller, many schools spend tens of millions or tens of millions of dollars on network hardware facilities, such as online teaching platforms, school business management systems, various multimedia teaching courseware, and information databases) but the cost is not enough, resulting in a lack of software resources.
2. The computer level of most teachers is not required. The survey shows that a large proportion of students have never obtained computer knowledge, and the proportion of students who can conduct computer-assisted teaching in science and education is smaller.
3. Lack of professional network technicians. Network technology is a new and high technology, and the social needs are extremely urgent. In the use of Campus Networks, professional network technicians are required to maintain the network, and dedicated personnel must be assigned to manage the network to ensure its normal use.
4. low efficiency in using campus networks. Due to the neglect of software resource construction and teachers' computer technology training, campus network equipment is idle, no one is using it, and no resources are available. Computers are only used as common text processing tools, the network is only used for file transmission, greatly reducing its efficiency.
Therefore, when designing a campus network, a school should consider all aspects to avoid the above problems. For campus network construction, its application is the purpose, the network environment is the foundation, the network teaching resources are the core, and personnel training and network maintenance are the guarantees. To successfully build a campus network, consider the following aspects.
I. Campus Network Construction Plan
1. Construction principle: campus network construction is a large-scale network project. Whether the design is reasonable plays an important role in the future development and benefits of campus network, generally, we should adopt the "overall planning and step-by-step implementation" principle, and make full use of limited investment to ensure the advanced nature of the network, in line with the principle of less money to handle major events, the best cost-performance equipment should be selected, and reasonable planning should follow the design principles of "practicability, advancement, openness, reliability, security, scalability and flexibility.
2. Implementation Functions: the campus network can be connected to public networks such as the Chinese Scientific Research Network through wired or wireless means, and has various functions such as teaching, management, scientific research, and communication. Share educational resources on and off campus and at home and abroad through the network, and strive to achieve the following functional goals:
1) sharing of information resources and hardware and software resources, providing a wide range of network information services, promoting informationization of teaching, management, and other Department management methods, and meeting the evolving needs of schools.
2) supports all the computers in the school and provides high-speed network transmission speeds. through high-performance network equipment, all the PCs, workstations, and terminals in the school and to be configured in the future are connected, A Distributed and open network environment.
3) Achieve Teaching Management networking and daily management office automation. Such as student status management, Course Arrangement, personnel management, business management, educational and teaching information query, and communication and resource sharing with the Internet.
4) provides functions such as on-demand video on campus network, video broadcast, e-library, integrated video conferencing, and remote teaching.
5) provides an advanced information-based teaching environment for school teaching and scientific research, and provides a network environment for teachers to prepare lessons, prepare courseware, demonstrate teaching, and perform interactive learning, exercises, and examinations.
6) to meet the communication requirements inside and outside the school, the resources on the campus are highly shared.
3. Network Technology: at present, many new network technologies have emerged on the basis of Traditional Ethernet, such as switching Ethernet, fast Ethernet, Gigabit network, and ATM, the adoption of different network technologies will directly affect the investment and performance of campus networks. Gigabit Ethernet has become a mature networking technology. Many networks in the world have been able to launch a good Gigabit Ethernet solution and a series of Gigabit Ethernet products with strong performance and functionality, gigabit Ethernet has become the main technology for Internet backbone network. Virtual lan vlan (VLAN) technology can be used to build a large-scale scalable CEN consisting of switches, routers, and corresponding network management applications.
4. Integrated Wiring: A cabling system consisting of various transmission media, line management hardware, connectors, sockets, and other devices should be reasonably structured. Structured cabling should be carried out in accordance with international standards in terms of system design, equipment selection, and construction and installation, and detailed documents should be established to ensure the standard of all equipment. International standard protocols and standard interfaces supported by most manufacturers must be used. A good cabling system not only facilitates the maintenance and repair of Campus Networks in the future, but also facilitates the expansion and upgrade of Campus Networks in the future and fully protects existing information system resources.
5. Construction Content: There are a lot of content to be built on campus networks. In addition to the network trunk construction, the purpose of the application should be to ensure smooth network connection, based on the school funds, existing infrastructure and personnel information, analyze the requirements and constraints in detail, and select suitable construction projects, such as the construction of data centers, multimedia network classrooms, and multi-functional audiovisual classrooms.
Ii. Campus Network Resource Construction
Software resources are the key to fully implementing campus network functions. While paying attention to hardware investment, campus network must pay attention to the preparation of application software and the construction of resource libraries. Software System configuration can be: student management system, network CD Resource Sharing System, Network Video On Demand VOD) system, video broadcast, screen broadcast system, etc. The resource library built on the software can include: management information library, multimedia teaching resource library, library information library, dynamic comprehensive information library, etc. This huge resource can be updated and gradually improved according to the overall design, multi-party cooperation, service teaching, and resource sharing ideas. The construction methods include:
1. Independent Construction: All teachers should work together to develop teaching materials and make courseware based on actual teaching conditions, taking subject teachers as the main force, you can also purchase excellent CAI courseware.
2. Link: link the WWW server of the school to the free resource website on the Internet to directly share educational and teaching resources.
3. Images: images are created with some high-level and high-quality educational resource libraries on the Internet to obtain more professional and updated resources.
Iii. Campus Network Management
1. Routine Maintenance: Campus Network Management should be conducted by a dedicated information center or network center, with dedicated technical staff to ensure that the smooth preparation of campus network personnel depends on the size of the campus network ). Routine maintenance includes the following content: maintenance of the network platform, maintenance of electronic teaching equipment, routine management of relevant materials, and website resource update.
2. Team building: the healthy development of the campus network should not only enable a car on the Internet, but also provide a good driver on the bus. Dedicated Technical staff can maintain the normal operation of the network. However, the network cannot run normally or the best effect may be caused by the level of users, therefore, schools can adopt measures such as introduction and training to strengthen the construction of teachers.
Iv. Effective Campus Network Application
To make full use of the value of campus network is to make rational application.
1. For a campus network, the school should create a good atmosphere to stimulate teachers' interest in applying the campus network, such as organizing knowledge lectures, experience exchanges, and courseware competitions.
2. The management of daily teaching is networked, And the campus network can also be used wherever you are.
3. Enhancing the operation skills of teachers can also effectively apply campus networks.
In short, it is necessary to make the investment directly proportional to the application of the network, so as not to cause problems at the beginning of this article.
Conclusion
For the construction of campus networks, the construction scheme varies with different units. Schools can analyze and practice the "overall planning and distribution implementation" principle, to find the best solution for you.