The students in higher vocational have the common characteristics of being scatterbrained, having short learning time, and being more interested in practice course than theory course. In order to improve education quality of higher vocational, based on the students’characteristics and the observation in teaching work, the paper proposes“micro course”design idea for computer network basis, combining the advantage of“micro course”design and the presentation and operation of simulation software.

Java Programming, as a core course for computer professional programming courses, has the characteristics of much concept, abstract knowledge points and difficult understanding. Many students do not have real programming ideas after learning this course. Therefore, this article takes the students of college of computer science and technology in liupanshui normal university as the research object, comparing the common teaching mode and computational thinking and flipped classroom teaching mode. Research shows that the computational thinking and flipped classroom used in Java programming can help students understand the abstract knowledge, fully arouse the enthusiasm of students learning, improve the students' practical ability, and gradually cultivate students the ideas using algorithm to solve problems. It lays a solid foundation for the future programming work.

Digital image has become an important medium for people to store information, disseminate knowledge and analyze problems, especially in the information age. However, with the development of network technology and the lack of corresponding supervision technology, the digital images which are transmitted in the network are very easy to be stolen and tampered. The owners of the image are hard to maintain their ownership without technical support. The increasing development of digital watermarking technology is to solve this problem. In this paper, a watermarking algorithm based on human visual properties and robustness in wavelet domain is proposed.

Task based collaborative learning is a model suitable for computer major students to learn operation knowledge and skills. It leads the software knowledge learning using enterprise project as platform and typical task as carrier, emphasizing on students comprehensive vocational ability cultivation. The task based collaborative learning used in higher vocational computer teaching has good practical significance.

The rapid development of network information technology has brought a series of complex information resources. The digital library information service resources are also in this range. Obviously, with big data as a mean, it is necessary to analyze and integrate the massive data. Therefore, under the background of big data, the reform of concept, resources, technology and strategy of digital library information service will be helpful to strengthen the integration of resources and user needs. This paper first puts forward the influence of big data to the digital library information service, and then introduces the content of digital library information service. It introduces the purpose and characteristics, and finally leads to the data service mode of digital library.

With the analysis of image binary processing, this paper discusses how to select the most appropriate threshold to segment the image. It uses the single Otsu threshold segmentation method which is based on the principle of minimum class variance, to select the best threshold automatically, so that the target and background of the image can get the best segmentation.

To study the spectrum allocation problem in cognitive radio network, an improved allocation model considering spectrum availability is proposed. An extreme optimization algorithm is proposed based on its NP features. Simulation results show that the proposed algorithm can get better spectrum allocation results and improve the spectrum usage.

IOT is a rising interdisciplinary technology in recent years. The logistics industry is the earliest industry pushing IOT technology application. The integration of IOT technology will further enhance intelligence, informatization and automation of logistics, and promote the logistics function integration. This paper discusses the construction of IOT and smart supply chain training room for logistics management major of vocational colleges, as well as the influence on the training of logistics management professionals. It has certain guiding significance to further improve the construction of college logistics management professional training rooms .

Micro course learning mode is a new course form, which changes the way of thinking and provides some solution for the problems existing in the practice course of colleges and universities. Telecast Production is a practical applied course emphasizing on theoretical and knowledge. Combining with the existing problem, such as incomplete curriculum system setup, no fixed teaching materials, and old materials, this paper provides an effective auxiliary micro course to improve technology and develop the learners' thinking, and improve the shortcomings of the curriculum implementation in the existing system.

In the era of global rapid development, communication network construction has very important role for the entire country and the whole society. The communication network is a huge system, which is affected by various factors in the construction process. This paper introduces the basic situation of pipeline optical cable construction. On this base, the various factors influencing the construction are analyzed, and then the countermeasures to strengthen the pipeline optical cable construction is put forward .

In view of the problem of the current e-government system information being threatened in the network, this paper solves it with the information security technology and e-government security system. Firstly, it describes the encryption technology, intrusion detection technology, firewall technology, digital signature technology, etc; secondly, it designs the e-government security system framework and analyzes the security system supporting technology ; finally, it discusses on the realization of information security from three aspects: physical layer, network layer and application layer. This paper has a certain positive significance for e-government maintenance personnel.

This paper discusses on the computer network security issues. Firstly, it introduces the characteristics of computer virus and its harm on network. Secondly, it proposes the safety problems in network. Finally, in view of the current security problems, it puts forward some virus prevention measures, ensuring the security of computer network.

SQL Sever database is a scalable, high-performance relational database management system, widely used in B / S mode site, C / S mode network applications. Data security has been the most important question for software and site, and also is one of the factors for the system to maintain normal operation. From the SQL Sever database security mechanisms, this paper discusses on purposes, ways, means and effect of maintaining the security of SQL Sever database.

In recent years, with the rapid development of science and technology, the domestic industry has achieved rapid development, and the smart campus is gradually forming a new technology system under this environment. The construction process of smart campus will inevitably promote the rapid growth of database. In view of this, this paper mainly analyzes the security risks in the current big database of domestic smart campus. Taking the system architecture design as the starting point of database design, it draws up a reasonable, safe and scientific safety protection scheme for big database of smart campus, hoping to enhance the safety of database information and the running.

This thesis introduces a PMAA process framework of quantitative management for CMMI, in order to assist the project manager to manage project correctly and effectively using the framework. And it guides to establish an effective quantitative management and improvement model for the project based on the enterprise business objectives. Practices show that the PMAA framework can improve the systematicness and effectiveness of project quantitative management.

In view of the rapid development of logistics industry in recent years, the demands for data management in each link of logistics management are higher and higher. Logistics management information system is playing an increasingly important role in logistics industry. This paper discusses how to combine the data warehouse and data mining technology in logistics management to provide technical support for policy makers. First of all, data warehouse and data mining are introduced briefly; secondly, the functions of data warehouse, data mining and OLAP in the construction of logistics management information system are discussed emphatically; finally, in view of the enterprise, the construction of logistics system is suggested to be strengthen. It has certain positive meaning for personnel in logistics industry.

In this paper, a real-time pipeline centroid calculating structure based on programmable logic devices is designed for Hartmann wavefront sensor with horizontal multi-channel pixel output. The structure is composed of multiplier groups, accumulation cells and dividers. The cells are designed according to the number of output channels and the output pixels’sequence. The centroid calculation latency in one frame is only the calculation time needed for the pixels output at the last pixel clock. In the simulation, when output channels’number is 8 and pixels output at 80MHz clock, centroid calculation latency is less than 0.5μs.

Online image processing system is based on B/S structure, using the technologies of ASP.NET, HTML5, jQuery and Ajax. Users can upload their pictures to the server and process in bulk. After that, they can store the pictures in the server or download to the local. So that no matter where the user is, he is able to access and manage his own pictures as long as browser and network are provided.

In view of the traditional teaching not meeting the needs of the current teaching, this paper uses the B/S model to design a network teaching system to solve the problem. Firstly, it analyzes the demands from function and performance; secondly, it introduces the system design and database design in detail; finally, it gives the specific implementation taking job management as an example. This paper has a positive effect on the front line teachers and the distance education workers.

Nowadays, cloud technology has stimulated the change of global informationization tide. It plays an important role in the construction of higher education informatization because it is more flexible, economic, and has better scalability. According to the practical experience in the work, this paper analyzes the current situation of the construction of computer room and multimedia classroom, puts forward insights about the outstanding problems in the university teaching, management and construction solved by cloud desktop virtualization technology, which has strong practical guiding significance.

The experimental course of College Computer Foundation is a course of developing students' practical ability of computer, which bears the important task of training students' ability of application and innovation in computer science. This article researches and analyzes the main problems of University Computer Foundation teaching at the present stage, and find out the problems existing in the teaching of this course. Aiming at these problems, this article puts forward specific solutions: combination of theory and experiment, stratified teaching, experiment teaching content innovation, breaking the traditional assessment methods and strengthening the construction of experimental teaching team, hoping that the scheme can effectively improve students' computer application ability and innovation ability.

The tide of information technology reform has already hit the information management level of every industry. The management ability of the computer information department in actual operation has gradually been unable to keep up with the development of information technology, which is a serious waste of advanced information technology. Only by improving the ability of information technology management, the advantages of information technology can be maximized, so that it can better serve various industries. This paper addresses the problems of contemporary computer information management, and puts forward the advantages and strategies to improve the ability of computer information management, helping the industry to improve the computer information management effectively.

With the rising of people's living standard, the popularity of mobile phones is getting higher and higher. Smart phone brings us great convenience. But for the students, it is a drawback that powerful mobile phones will take up much of our time, which is obviously not conducive to our study. This paper is mainly analyzes on the influence of smart phone on college teaching, and puts forward the measures to improve the use of smart phone in college classroom.

Electronic information system room engineering is basic facility construction, providing efficient technology and equipment support for computers. This paper researches on the design and construction from security, power supply and air conditioning, hoping to provide a certain guidance for the construction of electronic information system room engineering.

This paper researches on the problems existing in the process of digital campus upgrading to wisdom campus. It proposes the campus smart card renovation scheme based on the green energy-saving mind. On the basis of the integration of the existing information network, it renews the key of campus smart card, implements multi-angle adjustment from practicality, improves the campus intelligent degree, and promotes the development of college.

The computer laboratories in colleges commonly adopt the synchronous transmission from a transmitting terminal to establish a new system and reestablish a system. The parent system of a transmitting terminal plays an important role. This paper summarizes the key points of establishing transmitting terminals in computer laboratories by combining the work experience.

In view of the current network development needs, hyperlink has a very important role in the web page. This paper describes the hyperlink types and the classification of endpoint path, and describes the powerful functions of web page making software and the creation of a hyperlink. This paper has a certain positive significance for web page developers.