《计算机网络技术》是人工智能背景下高职计算机网络专业学生必须掌握的专业基础课程。文章以突出学生教育主体为理念，探究任务驱动法应用于高职院校《计算机网络技术》课程教学过程中，解决了教学内容重点的突出和难点的突破，有效提高教学质量，实现计算机网络技术的理实一体化，促进高职学生的全面发展。

TCP/IP is a typical network layer protocol,because of the TCP/IP protocol is basic in the related operating system ker-nel,so for layered protocol working strategy it is difficult.Via IP packet in the Linux kernel to restructure and the segmentation process,can be defined in the related application layer to the layered protocol,UDP is used below the condition that the user at the same time the socket restructuring and piecewise implementation to application layer.This simulation program is IP restruc-turing and clear segmentation process key processing activities,and layered protocol the entire process intuitive,this method used in computer network protocol related teaching effect is better.In this paper,the network application protocol messages re-structuring and segmented scenario analysis,Discuss the instance teaching method of network protocol layering

为更好满足学生的学业发展和职业发展需求,对专业课分层教学进行了多种模式的实践,总结了实施方式和效果制约因素,提出了分层教学标准制订思路、卓越人才培养建议和效果评估方法,分享了分层教学理念的灵活应用案例.

水下声学传感器网络具有传输延时较长、数据速率较低、传输损耗较大等特点,影响着现有定位算法的报文传输效率.针对水下声学传感器网络中现有定位算法在报文传输效率方面的不足,提出了一种改进的定位报文传输方案.首先,已知锚点的相对位置及其最大传输范围后,分析了定位时的无冲突报文传输条件,然后定义定位任务时间最小化问题,并证明该问题可以获得最优解.在此基础上,提出两种基于调度的低复杂度求解算法.最后,通过多次仿真实验来比较该改进算法与OCSMA等当前水下MAC协议及传统的时隙方法的性能,实验结果表明本文算法的性能达到准最优水平,且远优于TDMA和OCSMA等其他当前算法.

针对互联网络流量产生规模不断扩大,产生环境多变,网络监管难度增加的问题,以及随着计算机网络技术的快速发展,各种各样的互联网应用不断出现,且表现出的内容不断丰富化、协议不断复杂化等情况,采用分类的方式对应用较为普遍的各种网络协议识别算法进行解析,分析各种算法存在相关缺陷和优点,从而提高网络协议识别算法的实效性和准确性.

对高职校企合作共建实训基地进行分析,探讨校企合作共建实训基地的模式,从各个方面分析校企合作的益处.实训基地的校企间合作能够使教学规范化、常规化,降低学校的管理成本,达到培育技术技能型人才的最终目的,强化学生对理论知识的了解等.高职院校和企业合作共建实训基地还能够有效提升学生职业基础技能的水平,推进课程改革与专业建设,实现学生能力与企业要求的对接,对于我国高职教育教学改革有着十分重要的意义.

To construct a demonstrational polytechnic college, higher requirements are needed on the management of training base while building its hardware rapidly. To establish standardized management and smooth running of practical teaching bases, efforts to create a good environment for the management and the construction of practice training bases, and on the basis of the implementation of science and innovation of management mode, is the key of develop technology of skilled professionals by social and economic development needs, while to ensure the quality of higher vocational talents training has important practical significance. The existing problems on campus training base management in polytechnic colleges are analyzed in this paper, and new management ideas are proposed from the aspects of management system, management method, management mode, and training of management team, etc.

This paper proposes an improved LEACH protocol method based on analysing the LEACH protocol of WSN in operating mechanism, adapting to the scene and exiting defects. At last, the emphases is proving the improved LEACH protocal method’s practical operating performance by simulating with NS2 environment. The simulation results show that the improved LEACH protocol method can extend the operating life of WSN, save the limited energy of nodes, reduce the mass extinction of nodes and keep an adequate quantity nodes to operate compared to the routine LEACH protocol.

IPv6作为下一代物联网IP层技术,进一步扩大了地址空间,并在国家政策的号召以及国家电网公司的积极响应下在电力、石油等方面获得了广泛的应用,为智能电网与下一代互联网的深度融合探索道路、提供经验.但是其应用中仍然存在较多重大的问题,其中最为突出的就是其安全性和真实性.当前的网络体系结构,大多数情况下并不检查源地址,这就导致源地址伪造事件很容易发生.本文主要分析了物联网对IPv6的需求,总结了多种IPv6源地址验证方案,并重点对SAVS框架下的IPv6源地址验证方案进行分析和探讨.

For subnet division based on IPV4, IP addresses are not effectively used because some IP addresses are re-served in traditional division methods. A new subnet division method based on VLSM is proposed in this paper, which increases the IP address usage from the traditional 71%to 94%, therefore solves the waste problem of IP addresses dur-ing subnet division.

从“可用性、私密性、完整性”三个安全要素对校园网络安全问题进行分析并探讨预防对策.网络环境下的校园网络安全隐患,只要充分并合理调用技术管理和行政管理相结合的方式,可以最大程度的避免.

In the paper,we mainly introduce the theory of data recover system,technological innovation,and the method to realize lot quantity computer maintenance in university computer lab.

In the paper,we mainly introduce the functions of proxy server,theory,and the method to realize the basic functions of proxy server in Java development environment.

The existing problems in training rooms management are analyzed in this paper,according to the management theory of "6S" in enterprises,a new "6S" management is introduced to training rooms management in polytechnic college,and the detailed implementation scheme is also presented.It will help to standardize and systemize the training room management,and provide a foundation to build up high quality training rooms to meet the requirement for teaching assessment.

项目教学法是一种适合高职教育与高职学生特点的新的教学模式,该文从项目教学法的特点、内容设计、实施过程等几方面探讨了项目教学法在《计算机网络》课程教学中的应用。

该文设计开发了一个适合高职高专院校的基于B/S结构的网络评教系统,该系统可进行信息采集、统计、查询和维护,实现无纸化评教及管理,经过实际使用,系统运行良好,能胜任学院评教工作。

Introduces the application of MatLab in digital image processing such as image enhancement,image edge detection,image space transform,image transform in frequency domain etc.,takes Arnold scrambling transformation as an example,discusses the application of image space transform processing in MatLab,takes discrete cosine transform as an example,discusses the application of image frequency transform in MatLab.

Image edge detection is an important subject in the field of image processing and analysis. This paper analyzes not only the representative algorithms of image edge detection, but also the performance characteristic of the operators. Then each algorithm is validated by MATLAB with examples and the experimental results are compared and analyzed.