与开阔的高速公路区域不同,公路系统中的隧道路段一般条件更为复杂.在当下主流的GPS+GPRS(车载终端定位搭载手机移动导航)辅助驾驶模式的基础上,针对其在隧道内易出现信号不足和时效性不强等问题,提出一种基于ZigBee的短距离无线预警系统,研究结果表明,此系统不但可靠性高、实用性强,而且功耗低、价格低廉,是车联网技术与隧道路段相辅相成的有效途径.

针对环境污染以及空气中粉尘浓度过高问题,提出一种基于LoRa的粉尘检测系统,该系统对空气中粉尘浓度进行实时检测,并通过LoRa模块与地面进行信息传递,减少有线布施的复杂性,提高传输效率.整个系统采用模块化设计,各功能模块协调工作,将粉尘浓度进行准确计算.

面对数据库中冗杂大量的数据,常常无法提取出数据间有用的信息而无法获得其潜在的价值.利用数据挖掘技术中经典的Apriori算法,并在此基础上使用改进的AprioriTid算法来研究课程之间的关联规则.

针对目前智能照明传输距离局限性问题,采用基于LoRa技术的无线组网方式,对远距离照明设备进行亮度调节、远程控制和故障报错等一系列的智能化控制.使社区、校园、公园和广场等远距离无线照明系统控制成为可能,减少有线施工布线的困难性,提高传输效率,节约了配置成本.

随着互联网在当今社会的广泛应用,用户之间信息传递的安全性和保密性显得尤为重要.VPN(Virtual Private Network)作为一种比较安全的信息传递方式越来越多地被使用,VPN主要用来在不安全的网络环境中建立独立的安全隧道来进行数据传输与通信,而IPSec则是对在隧道之中传输的信息进行加密和解密,保证信息的安全性和完整性.主要研究将IPSec应用于VPN技术之中,使得信息传输的安全性和保密性能够得到更好地保证.

In order to improve the robustness and scalability of the smart home system, this paper presents a design scheme that based on Docker containerization technology for building an SmartHome system cluster. In the Openstack environment to create a Docker container instance in this scheme. Through the Docker container engine, the SSM Web application environment is packaged and used to generate the application container. Load balancing of service traffic is implemented by nginx. Smart home gateway adopts development board based on ARM cortex-A9 as the hardware carrier. Realize distribution control that equipment communicate by wifi/zigbee/Bluetooth and other protocol. The SmarthHome system deployed in the cloud to provide more space for the intelligence of the system. Compared with the deployment of smart home systems through virtual machines, Docker containers have the advantages of fast start-up speed, high resource utilization and low performance overhead.

移动互联网和物联网技术的快速方展带动了智能家居系统的“不断升级”.针对智能家居的复杂性特点及对于功能可拓展的需求,设计了一种基于B/S架构的智能家居控制系统.该系统移动控制终端是基于Cordova进行开发的,可实现跨平台“一次开发,处处运行”.智能家居服务器采用JavaWeb的SSH框架开发,以达到家居数据完整性高、安全性强、家居功能可拓展的效果.基于ARM cortex-A9的Tiny4412开发板作为家居网关的硬件载体,采用高效且移植性较好的Qt进行软件开发,实现对Wi-Fi/ZigBee/蓝牙等不同通信协议的设备进行分发控制.

针对智能家居系统中组建通信网络成本高及性能低的问题,采用ZigBee和Wi-Fi结合的无线通信技术设计了一种新型智能家居网络搭建方案.该方案可节约成本和提高数据传输效率.通过对Wi-Fi和ZigBee技术的融合建立家居内部无线网络,提出了基于无线通信技术智能家居系统的组成结构和系统的设计思想.实验结果表明,新型的智能家庭网络搭建方案是可行、高效和稳定的.

In this paper,μCOS-Ⅱ is transplanted to the Cortex-A9 processor which based on the DS-5 platform.First,this paper briefly introduces the core of μCOS-Ⅱ,Cortex-A9 and DS-5 platform.Then,the techniques in transplantation are intro-duced.Final y,it verifies the transplantion and get success.

计算机网络原理是计算机专业的核心必修课程,课程中包含许多抽象的网络协议、过程原理和算法.本文研究Authorware的多媒体开发环境和编程功能,设计开发一个简单实用、功能强大、交互性强的计算机网络原理多媒体课件.阐述了用Authorware制作多媒体课件的设计框架、设计思路和方法步骤,并以计算机网络原理的三种信息交换过程、停止等待协议和使用子网划分的分组转发这三个典型协议和过程为例,具体讨论了使用Authorware设计实现中的图标技巧.教学实践证明,通过多媒体课件模拟仿真实现网络协议和过程原理,可以将晦涩难懂的网络协议和过程原理直观化和形象化,增强了学生学习的交互性、自主性和创造性.

针对软件实时操作系统的开销给嵌入式系统带来性能退化的问题,提出了基于FPGA的硬件实时操作系统的方案,设计了一个硬件信号量管理模块并用Verilog HDL硬件描述语言进行描述.仿真结果验证了这一设计的正确性,且其创建、请求和发送信号量操作的执行速度比μC/OS-Ⅱ中信号量管理部分明显提高.

为了满足嵌入式操作系统对实时性的要求,提出了基于FPGA的硬件加速模块的实现,将μC/OS-II操作系统中原有的调度器与定时器部分进行合理的硬件化实现.整个设计采用Verilog硬件描述语言,通过Quartus II 13.1软件进行时序仿真验证,通过仿真,得出此方法可以提高系统的实时性,降低系统的额外开销.

介绍了梳棉机自调匀整系统的工作原理和组成,对一种两检一控式的混合环控制系统进行PID调节和仿真.并对开环控制系统、闭环控制系统和混合环控制系统的匀整效果进行比较.

Objective: The edge detection of digital image is a very important foundation of the image analysis field,such as target area identification, regional shape detection, image segmentation and so on. The edge is the important performance between the rough phenomenon and the irregular structure of the image. It often carries most of the image information and gives the outline of the image. In the three dimensional display technology of medical image, hospital need get the more accurate clinical criterion,so we need a new edge algorithm. Methods: This paper put forward a new edge algorithm which is based on the traditional wavelet edge detection. The algorithm is based on wavelet maximum edge detection algorithm. First we construct a corresponding subordinate function by fuzzy algorithm; then we filter the maximum values of the obtained. Results: Applied this algorithm to medical image, finally can get a clear single pixel edge profile and the results of the experiment prove the feasibility of the algorithm. Conclusion: The medical image edge treated by this algorithm seems be more better and clearer. It can provide the basis for the the early recognition of tumor and meet the needs of the medical image recognition.

The quality in cooperative education which embed work-integrated learning into the curricula propose challenges for higher education. To address the issue,quality management principles and methods widely used in industry are investigated in higher education to satisfy the needs of students and the society. An integrated framework of quality management on the basis of total quality management and PDCA cycle is proposed. The framework consists of three components-quality assurance,quality control and quality improvement for cooperative education programs. All of the activities that spread all over the education processes are organized together according to the PDCA model. The paper describes the structure of the framework and the some specific activities of the quality management in cooperative programs of the author's university.

针对网络工程专业人才培养目标,分析网络工程专业课程知识体系和课程特点,提出构建网络工程专业核心课程群。针对当前传统教学模式存在的问题,提出创新思维教学法CTT,阐述创新思维教学法在网络工程专业核心课程群教学中的应用。

In order to meet the requirements of the clear single pixel outline for the medical image,a new edge algorithm based on wavelet maximum edge detection algorithm was presented.Firstly,a corresponding subordinate function should be constructed through fuzzy algorithm;then the obtained maximum values need a further sifting;finally,the edge of the single pixel can be obtained.

The qualities in cooperative education which embed work-integrated learning into the curricula propose challenges for higher education. To address the issues, a framework of quality management on the basis of total quality management and PDCA cycle is proposed. The framework consists of three components - quality assurance, quality control and quality improvement for co programs. All the activities in the components are structured according to the PDCA model. The paper describes the structure of the framework and the some specific activities of the quality management in cooperative education.

在论述服务外包人才培养重要意义的基础上,分析大学、企业和培训机构在当前服务外包人才培养中的不同作用以及相互补充、相互支撑、相互依存的格局,提出校企合作办学、培养面向服务外包产业的三种人才培养模式,并比较各自的特点。

Incremental point clouds registration is studied in this paper. A rapid method for point clouds registration based on reference points is proposed, which consists of the coarse registration and fine registration. Firstly, a set of reference points is applied as an assistant utility to measure the object. The transformation parameters are estimated by using the reference points only for coarse registration, and then dense point clouds data will be transformed to the same coordinate system. Secondly, taking the coarse registration results as the initial value, the improved Interactive Closest Point (ICP) algorithm is used in fine registration the original corresponding points are established rapidly by using the k-d tree searching algorithm. Finally, Preview Model Parameters Evaluation Random Sample Consensus (PERANSAC) algorithm is utilized to remove outliers. The experimental result shows that this method in finding original corresponding points can greatly improve the computation efficiency and also improve the registration accuracy.