On the use of VPN to enhance the level of power supply enterprise

Paper Keywords: VPN, power supply enterprise; Information
Abstracts: Information County Power Company in the process of advancing, the prevalence of excessive cost, a lower factor of safety issues and the building of a long cycle. Lujiang combination of urban and rural supply companies to carry out Information technology in Marketing and management problems analyzed, and use VPN to achieve company-wide networking solutions, and analyzes the main direction of further Information.



0 INTRODUCTION
As the letter from the electricity, the improvement of the level, county level power supply enterprise integrated management Information system gradually established, but the primary substation, supply town to listen to local area network interconnection with the power company is a serious problem restricts the supply of enterprise information at the county level systems development and practical level full and effective use of information resources, which supply the pursuit of corporate management development objectives and customer needs is extremely inappropriate. supply the information of township building the terrain, the quality of personnel, funds input and other factors, to solve the problem as the remote site networking letter from the county supply enterprises, network construction of the prominent contradictions.

An information technology company Lujiang Power Status
Lujiang power company's information to make a late start, the power company headquartered in the X004 achieved the production of MIS and office automation system for OA of the single-track operation, the headquarters of the enterprise information technology operation and raising the level of the overall management and office efficiency. Today , Lujiang supply company headquarters has been running the information system are: production management systems, office automation systems, file management systems, Web systems, financial management systems, existing servers, including: production server, office automation server, file server, Web server , the financial server. force, more than 80 public computer, each manager and each work team is equipped with a computer.

In the implementation of information technology and management, fully appreciate the power company Lujiang information technology can not only reduce financial management, materials management, project management, data management, cost management and production management of all equipment information can be classification number, the input database, the implementation of equipment, facilities defect management, defect inspection program scientifically formulated to improve the operation of equipment reliability, reduce the failure rate and improve power supply reliability; the same time, Lujiang power company built the Marketing management information system Some industry expansion subsystem f electricity tariff system, electricity inspection subsystem, integrated query system, through these systems can facilitate communication with customers, communication, save costs and achieve scientific and Marketing process management. The management information system applications, strengthen the J 'standardized management of enterprises, enhance the scientific level of management, reduce the burden on the staff to improve the economic efficiency of enterprises.

To this end, joined the township Lujiang power supply companies are Marketing efforts to promote MIS application systems, to further reduce the burden on the meter reading, billing time shortened to enhance the tariff price control and management, improved Marketing and management level of automation. county 17 towns power to listen, use the same version of the Marketing MIS applications. boat has a power to listen to more than 3 sets of computer, where a station director for the daily office, the other 2 sets, respectively, as used Power MIS server and client systems, and concurrently as the other staff in the office use. which has 10 power substation of the optical fiber system can be used with the power company headquarters Lujiang network interconnection, and improve work efficiency and save costs. The remaining seven are still not able to achieve power of information sharing, which supply the networking very much hope that as soon as possible.

2 is powered by the VPN program to promote the process of building information
If the power of the optical networking using the previous method, only large investment and long construction period, and the future maintenance are many. Taking into account the above reasons, as soon as possible to resolve the remaining seven optical power of the township is not open Internet connectivity problems and achieve information sharing, promotion of rural Marketing power of the MIS system application, the company decided to use virtual local area network (VPN), on the basis of the existing equipment, a simple transformation. through the VPN gateway is configured in the power of the 7 user, password, and access policies, and electricity were installed in 7 VPN client application install the company's MIS systems to achieve company-wide networking. VPN technology actually is the comprehensive utilization of packet encapsulation technology, encryption technology, the key switching technology, PKI technology to the public on the Internet in a secure virtual private network (VPN, Virtual Private Network). VPN is an encrypted communication process, or package, the process safely from one end of the data sent to the other end of the This data security encryption technology from the reliable protection of the data in an open, no security, after routing the network transmission. VPN technology can effectively solve the secure transmission of "confidentiality, integrity sex, non-repudiation "problem. reposted elsewhere in the Research Papers Download http://www.hi138.com 3 Comparison Programme

The possibility of two kinds of programs are compared in Figure 1. If the power company all Lujiang used to achieve the power of the fiber optic network connectivity, each powered by the cost of materials and construction costs at 3.5 million , calculated for 10 days construction time, 7 to supply the needs of 3.5 x 7 = 24.5 million, requires 10 x 7 = 70 days. if the power supply used in the 7 VPN solutions VPN gateways only need to purchase 1 set 3.5 million and the value of 7 client key, the value of 7 x 480 = 3360 Yuan, 5 days to complete the installation of power supply 7. Therefore, the application VPN solution will be able to save money Lujiang power company for up to 24. 5 - 3.836 = 206.64 thousand yuan, shorten the construction period of 65 days, to obtain direct benefits are significant, and eliminating the need for future fiber optic line maintenance work.

Now, that can be powered by the 7 towns safe and reliable use of VPN solutions visit the company's local area network, local area network to download content at speeds of up to 350 kb / s, the production MIS system response time is 2 - 3 s, office automation system view company to send and receive files, receive e-mail of the time due to the different size of the file be different, 1 MB file takes about 8 s. Because ADSL asymmetric digital loop, so the speed of e-mail is much slower, 1 MB The file takes about 18s. VPN program from running effect of view, fully able to meet the power company networks Lujiang MIS system development and applications.

4 Next to the main direction of information technology
Currently, Lujiang supply the information still in its infancy, the power of the target enterprise information construction has not yet fully formed unified management standards; the same time, Lujiang supply companies to implement VPN technology, but also clearly see: VPN is a virtual private network, rather than a true private network. Therefore, Lujiang power company intends to establish strict management system, including the strict rights management, independent of who is entitled to see, changes to data, VPN client users and password management and so on, to establish a computer management operations and other rules and regulations, so that the whole network security and orderly operation. In addition, the company's future power supply will also increase the use of personnel computer training, including training in computer applications, including knowledge and promote better use of the software the operator to raise the level of computer operator but also for computer applications within the enterprise to develop better play a certain role and listen to full-powered computer network management training personnel, information security managers , the information construction throughout the training, and then expand the coverage of information technology, to ensure that information, the healthy development of the work, so VPN technology to better information for the Lujiang supply companies, professional and modern services.

5 Conclusion
Powered by information technology is to improve the rural power companies to survive and develop market mechanisms based divination, but also improve the power supply are an important means of standardized management, supply companies Lujiang timely and effective manner through the VPN program promoted by the process of information supply , so that gradually took the management of digital power supply, automation, and efficiency of the healthy development track. reposted elsewhere in the Research Papers Download http://www.hi138.com