In view of drive - response chua ' s circuit chaotic synchronization system , chaos synchronization self - maintenance is put forward in this thesis , it solves the present problem of how to stimulatingly transmit useful signal and chaos synchronization control signal in the same one channel , as a result , it establishes the groundwork of putting chaos into practical application of engineering and communication field 本文针对驱动?响应式chua电路混沌同步系统，提出混沌同步系统的自保持特性，解决了目前在混沌保密通信中，如何在同一信道中同时传输明文信息和混沌同步控制信号，为混沌同步在工程、通信领域的实际应用奠定了基础。
Comparing and analyzing the synchronous control strategy , which brings up the new method to control the double un - symmetry jars proceed synchronously with the combination of proportional valve and servo valve , which forms closed loop control ; basing on the above methods , models are made to get mathematics models of position control system and to analyze system model theoretically by using pid controller , we can realize regulating parameters , minimizing synchronous errors and enhancing the dynamic performances ; the simulink tool box in matlab software is used to imitate the system according to the model , which not only makes the result visual and easy to adjust the parameters in interactive way but also lets us understand the effects of different parameters and optimizes the dynamic properties . the theory of plc control in dshp is discussed after advanced understanding of the system movements . hardware design and general regulation are given on the base of siemens company products s7 - 200 plc 本文根据大量的国内外文献，对研配液压机的工作原理及设计结构进行了简介；对位置同步的控制方法进行了比较分析，提出比例阀和伺服阀复合控制的闭环结构来对非对称双缸进行同步控制电液比例同步控制方案；在此基础上着重对比例阀控非对称缸建模，最后得到位置控制系统的总体数学模型，从理论上对同步系统动态特性进行了分析，并用pid控制器进行参数整定，减小双缸同步误差、提高系统的动态响应性能；其中控制性能的分析借助于matlab软件中的simulink工具箱，由已建立的数学模型形成仿真模型，得到可视化的仿真结果，从而利于交互方式下调整参数，了解不同的参数对系统的影响，优化同步系统的动态性能；在深入了解系统的动作特性后，对plc控制研配液压机的原理进行了探讨，针对siemens公司s7 ? 200型plc给出了硬件设计的总体规划，编制出研配液压机动作控制程序，在编程中着重研究位移传感器与plc的通讯、双缸同步运行的pid控制在plc上的实现及bcd码拨盘输入程序的植入问题。
With the current condition , the paper raises the point of synchronization in the qe1 ' s development , including the synchronization of bit , frame , multiframe and network and analyses the performance frame synchronization system based on the theory of probability and finally explains the realization of the technology of synchronization . the hardware circuit diagram of qe1 and some software flow chart have been offered in the paper 在针对qe1中继板卡系统实际的开发情况后，本文分析了该系统所涉及的同步问题(包括位同步、帧同步、复帧同步和网同步) ，在概率论的基础上分析了qe1系统的帧同步系统的性能，并研究了各种同步技术在qe1中的实现。
Section 2 studies the database access management technology based on microsoft sql server 2000 which is the nuclear technology of database management module in data synchronization system sever , and emphisizes on ole db database access technology . section 3 introduces two kinds of block cipher algorithm used in data synchronization system . : gost algorithm and rijndael algorithm , meanwhile offers interfaces in which encryption algorithm can be userdefined . this is the necleus of encryption module in data synchronization system server and client . section 4 studies network transmission management technology . this section mainly explores programming model and the network interface technology using completion ports to develop server which is the key technology of network transmission management module in data synchronized system server and client . section 5 introdues the brief using approach in data synchronized system server and client as well as some improvement suggestion 第二部分研究了基于microsoftsolserver2000的数据库访问管理技术，着重介绍oledb数据库访问技术。它是数据同步系统服务器端数据库管理模块的核心技术。第三部分介绍了数据同步系统中利用的两种分组密码算法： gost算法和rijndael算法，同时给出了一个用户可以自定义加密算法的接口。
