高校学生科研项目管理系统的设计及实现开题报告己通过

在电子技术中，频率是最基本的参数之一，又与许多电参量的测量方案、测量结果都有十分密切的关系，因此频率的测量就显得更为重要。测量频率的方法有多种,其中电子计数器测量频率具有精度高、使用方便、测量迅速，以及便于实现测量过程自动化等优点，是频率测量的重要手段之一。在本次毕业设计中我们选择使用单片机来制作数字频率计，并在实际制作中采用了直接测频法。利用延时产生的时基门控信号来控制闸门，通过在单位时间内计数器记录下的脉冲个数计算出输入信号的频率，最终送入LCD中显示。这样制作出来的频率计不仅可以满足设计题目的参数要求，而且具有了单片机的稳定性和成熟性，且控制能力强，是一种低成本，高可靠的设计方案。-In electronic technology, the frequency is one of the most basic parameters, but also with a number of electrical parameters of the measurement program, the measurement results have a very close relationship between the frequency of measurement, therefore it is even more important. Measurement of the frequency of a number of means, electronic measurement of the frequency counter with high precision, easy to use, rapid measurement, and measurement is easy to realize the advantages of process automation is an important means of measuring the frequency of one. Graduates in this design we have chosen to make use of single-chip digital frequency meter, and used in the actual production of a direct

GPRS开发文档，DSC开发帮助文档.doc 开发源码-GPRS development documents, DSC development of help documentation. Doc-source development

三层结构及组件技术实现员工数据管理系统.pdf-three-tier structure and components technology employee data management system. Pdf

按功能目标的不同可将电子政务的系统功能分为以下三类：内容管理（Content Management）、协同处理（Collaboration）与内务服务（Business service）。-according to the function of the different objectives of the e-government system functions are divided into the following three categories : content management (Content Management), synergistic processing (Collaboration) and the House (Business service).

本程序实现FCFS先来先服务，SPF短进程优先，FPF_Reaved抢占式高优先级，TimePiece时间片轮转这四种进程调度算法。 程序运行时根据提示选择相应进程调度算法，然后调用函数GetRandProc(LPVOID lpParam)（程序专门为该函数开辟新的线程）产生随机进程并将其插入到就绪队列中然后再用相应的进程调度算法调度进程运行。 -the program FCFS first-come first-serve, SPF short process priority, Preemptive FPF_Reaved high-priority, TimePiece time to rotate the four-process scheduling algorithm. Running time prompted the selection process scheduling algorithm, then the function call GetRandProc (LPVOID lpParam) (specialized procedures for the letter several open up new threads) random process and will be inserted into its place queue Then the corresponding process scheduling algorithm scheduling The process runs.

快捷实现数据复制和磁盘运行,window linux-Realize fast data replication and disk run, window linux

m128 带音乐的跑马灯-m128 with music Marquee

图书馆管理信息系统论文

P2P持久存储研究,可以作为p2p设计参考-P2P lasting memory research, can be used as design reference p2p

提出了基于嵌入式技术CCD 采集系统的新方法,并以ARM微处理器和FPGA 芯片为核心设计了嵌入式CCD 采集系统,解决了传统采集方法中系统过于庞大和复杂的问题,具有结构简单、小型化和智能化的特点。试验结果表明,该系统实现了CCD 输出图像的高速采集和实时显示,数据采集速率达到5 MHz。-Embedded technology based on CCD acquisition system A new method, and ARM microprocessors and FPGA chip is designed as the core embedded CCD acquisition system to address the traditional acquisition methods in the system too large and complex problems, is simple in structure, small and intelligent features. Experimental results show that the system realizes high-speed CCD output image acquisition and real-time display, data acquisition rate up to 5 MHz.