后缀数组是处理字符串的有力工具。后缀数组是后缀树的一个非常精巧的替代
品，它比后缀树容易编程实现，能够实现后缀树的很多功能而时间复杂度也并不逊色，而且它
比后缀树所占用的内存空间小很多。可以说，后缀数组比后缀树要更为实用。自从拜读了罗穗
骞大牛的 WC2009 论文《后缀数组——处理字符串的有力工具》后，经过若干星期的努力（中
间有因某些原因而缓下来），终于把论文上面的练习题全部完成了，现在写写自己对后缀数组
的理解和感悟。在看本笔记时，请不要忘记了，这是笔记，而教材是《后缀数组——处理字符
串的有力工具》。
Suffix array is a powerful tool for dealing with strings. Suffix array is a very compact alternative to the suffix tree
Products, it is easy to programming than the suffix tree, can achieve many functions suffix tree and the time complexity is not inferior, and it
Much smaller than the suffix tree occupies memory space. It can be said to be more practical than the suffix array suffix tree. Ever since I read the Lo Sui
Qian large cattle WC2009 paper- after "suffix array processing strings powerful tool," After several weeks of effort (in
Thunderstorms slow down for some reason), and finally the paper above exercises completed, and now write own suffix array
Understanding and perception. Looking at the notes, do not forget, this is the notes, and textbooks are "suffix array- processing characters
Powerful tool "string. (2014-06-10, C++, 252KB, 下载4次)
汽车发动机电子控制单元的软件开发
为了提高实时响应，控制准确性，ECU 的网络性能和稳定性 ，新的发动机电子控制软件开发是基于闭环控制系统和一些基本的参数计算公式。
发动机电子控制系统的基础上的32位微控制器命名为MPC5634M的软件程序设计，模块化和层次化的编程方法。该程序执行的基本功能是传感器信号的采集，计算喷油点火，执行器驱动，等等。本文将介绍软件架构，和基于32位MCU新的特性和功能基础上的控制逻辑的相关内容。
Software Development of Automotive Engine Electronic Control Unit
To improve real-time response, control accuracy, network performance and stability of ECU, a new engine ctronic control software is developed based on closed-loop control system and some
basic parameter computational formulas.
A software program for engine electronic control system based on
a 32-bit microcontroller named MPC5634M is designed in modular and
hierarchical programming method. The program performs the basic functions of sensor signals gathering, lculation of injection and ignition, actuators driving, etc.
This article will introduce related content about software architecture, control logic based on new functions and characteristics of 32-bit MCU.
(2013-01-13, PDF, 195KB, 下载94次)
设计安装220 kV 变电站远程视频监控系统是对变电站“四遥”功能的进一步补充。介绍了
220 kV 变电站远程视频监控中心的系统设计方案，根据系统的具体特点，设计了适应性很强的接
口规范，各子站系统根据通信接口规范设计，并以DLL 文件的形式提供给视频监控主站。系统在
ATL 框架下开发客户端控件，给出了实现视频监控中心客户站控件的具体编程过程。主站调用各
变电站通信DLL，可以实现图像及监控数据的透明传输。
The design and installation of a 220 kV substation remote video surveillance system is further added to the substation " remotes" . 220 kV substation remote video monitoring center system design, based on the specific characteristics of the system, design adaptable interface specification, each sub-station system according to the communication interface specification design, the form of a DLL file to video surveillance master. ATL developed under the framework of the client control, video monitoring center client station control programming process. Master calls substation communication DLL can achieve transparent transmission of image and monitor data. (2012-10-25, Visual C++, 64KB, 下载13次)
本文研究开发了大功率风电齿轮箱试验台,用于6兆瓦以下的风电齿轮箱台架试验。论述了风电机组和风电齿轮箱的基本结构及电功率封闭式的齿轮箱试验台在风电齿轮箱试验台中的应用。在此基础上,利用西门子变频器、电动机、可编程控制器和WINCC监控软件搭建了风电齿轮箱试验台的驱动和加载系统,可实现对风电齿轮箱的驱动和加载,完成风电齿轮箱的各种试验,模拟风电齿轮箱在风力发电时的工作状态。利用NI数据采集卡和Labview软件搭建了风电齿轮箱运行状态监控系统,可对试验中的风电齿轮箱进行状态监控、故障诊断和停机保护。
With the development of science and technology , Phoenix can be more and more attention as a new non-polluting and renewable energy . (2012-07-25, MultiPlatform, 14165KB, 下载47次)
给出一种基于LabVIEW及NIDAQmx的压延机在线测厚系统。该系统选用NI PCI-M6220数据采集卡,控制伺
服电机带动传感器在线测量产品厚度,并对厚度值及其位置坐标进行记录,另使用NI图形化编程软件进行测厚系统的控
制、采集数据的分析处理和用户界面的编写,构建PC机的LabVIEW测控平台。该系统数据采集频率高、系统配置灵活、
程序编制简单,从整体上降低研发成本和时间,适合于现场长期使用
Given based on LabVIEW and NIDAQmx the calendar online thickness measurement system. The system used NI PCI-M6220 data acquisition card to control the servo motor to drive the product-line measurement of the thickness of the sensor, and the thickness of the value and location coordinates recorded, and the other using the NI graphical programming software for thickness measurement system control, data collection analysis processing and user interface written in LabVIEW to build and control the PC platform. The high frequency data acquisition system, system configuration flexibility, simple programming, reduce overall development costs and time, suitable for on-site long-term use (2011-11-08, LabView, 523KB, 下载56次)
在数控机床中, 通常用可编程控制器( PLC) 对机床开关量信号进行控制。PLC可靠性高, 使用方便。但在大多数数控机床, 特别是经济型数控机床中, 要求的输入输出点数并不多, 通常在60点以下,因此, 为了降低数控机床成本, 在基于工业PC机的数控系统中, 可以采用开关量I/O板加外接继电器,配合主机的软件对机床开关进行控制。但如果PC机采用单任务操作系统(如DOS) , 数控系统的所有任务运行都置于一个总体的消息循环中, 软件的模块化和可维护性较差, 系统故障的风险相对集中, 而且不能充分利用PC机系统资源。而采用非实时多任务操作系统(如Windows) 时, Win32 API的设计没有考虑到实时环境的开发用途, 其系统调用的效率不高,不能满足数控系统PLC控制的实时性要求。
为此, 本文提出一种基于RT - Linux操作系统的嵌入式PLC, 利用RT - Linux的开放性、模块化和可扩展性的系统结构特性和多线程/多任务的系统环境,在保证实时性的同时, 使故障风险相对分散。
use linux to design plc (2009-09-08, Unix_Linux, 87KB, 下载28次)
单工无线呼叫系统分发射和接收两大部分。发射部分采用锁相环式频率合成器技术， MC145152和MC12022芯片组成锁相环，将载波频率精确锁定在35MHz，输出载波的稳定度达到4×10-5，准确度达到3×10-5，由变容二极管V149和集成压控振荡器芯片MC1648实现对载波的调频调制；末级功放选用三极管2SC1970，使其工作在丙类放大状态，提高了放大器的效率，输出功率达到设计要求。接收部分以超大规模AM/FM立体声收音集成芯片CXA1238S为主体，灵敏度、镜像抑制、信噪比等各项性能指标均达到设计要求；音频功率放大器采用集成芯片LM386，电压放大倍数最大为200。采用PT2262/2272编码/解码电路实现了数据传输业务以及对台号的选择等功能；音频输入和数据输入可自动转换；AT89S52作为整个系统的控制部分，程序设计采用C语言在KEIL51的编译器上编程实现；显示采用128×64点阵型液晶显示。经测试，整机功能齐全，各项性能指标符合系统要求，接收波形稳定，无明显失真。
The simplex wireless-calling system consists of two parts: transmit part and receive part.The transmit part adopts the phase-locked loop pattern of frequency synthesizing technology and uses the MC145152 and MC12022 chips to compose the phase-locked loop.It locks the frequency of the carrier-wave at 35MHz.The stabilization of the carrier-wave can be 4×10-5,the accuracy can be 3×10-5.The frequency modulation and the confection of the carrier-wave are realized by the capacity-changing diode V149 and the integration voltage-control oscillator MC1648 chip.The end power amplifier uses the audion 2SC1970 to make it work in the third magnifying state,it improves the efficiency of the magnifier and the power of the output reaches the design demand.The receive part uses the super cosmically AM/FM dimensional sound stereo radio reception integration chip CXA1238S as the main part.The sensitivity、the mirror-control restrain、the SNR and every capability index all reach the design demand.The audio (2009-08-30, Others, 612KB, 下载156次)
路径跟踪是机器人视觉导航控制基本技术之一，为使机器人沿地面彩色引导线自主运动，并能在适时离线执行任务
后自动返航，提出了一种用可编程逻辑器件(CPLD)实现的视觉伺服PID 控制方法。该方法利用图像特征反馈对其所跟踪的
路经进行实时识别跟踪。仿真结果表明，该方法改善了控制算法的实时性，提高了移动机器人的路径跟踪精度与速度。
Path tracking control of robot visual navigation, one of the basic technology, in order to guide the robot along the ground color line autonomous movement, and offline in a timely manner after the implementation of auto-return mission, a programmable logic device to use (CPLD) realize the visual servoing PID control methods. By using image feature tracking their feedback via real-time identification and tracking. The simulation results show that the method improves the real-time control algorithms, and enhance the mobile robot path tracking accuracy and speed. (2008-06-04, C/C++, 450KB, 下载85次)
基于JMF的多人视频聊天软件的设计与实现,多人视频聊天软件是网络环境与网络技术发展的产物，具有很高的应用需求和广阔的应用前景。JMF(Java媒体框架)是Java语言的扩展，专门用来处理时基媒体数据和实时媒体流。通过介绍JMF应用编程接口的结构特点，详细阐述了当前Internet网络多人视频聊天软件的工作原理，关键技术，及其基于JMF的具体实现。该软件具有跨平台可移植性。
JMF-based multiplayer video chat software for the design and realization of more than video chat software is the network environment and network technology development, product application needs of high and broad application prospects. JMF (Java Media Framework) is an extension of Java language, specifically designed to deal with time-base media data and real-time media streams. Through the Application Programming Interface JMF introduce structural characteristics, described in detail the current Internet network of more than video chat software working principle, key technologies, and its concrete realization based on the JMF. The software has a cross-platform portability. (2008-05-24, Java, 430KB, 下载244次)
制动主缸与踏板行程专家系统知识库的建立
根据专家的经验知识和设计思路,分析了制动主缸和踏板行程计算中的各个影响因素.结合开发汽车制动专家系统的实践,采用C++编程语言,在Visual Studio.NET2005开发环境中,充分利用面向对象的知识表达方法和模块化程序设计方法,建立了制动主缸和踏板行程知识库.并利用已有的某车型参数对知识库的计算与分析功能进行了测试,结果显示汽车制动专家系统主缸与踏板行程知识库已达到预期设计目标.
Brake master cylinder and pedal travel expert system knowledge base to establish the basis of expert knowledge and experience in design, analysis of the brake master cylinder and pedal stroke affected the calculation of various factors. Combined with the development of automobile brake system, the practice of experts, using C2B !+ programming language, Visual Studio.NET2005 in the development environment, make full use of object-oriented knowledge representation methods and modular program design methods, the establishment of a brake master cylinder and pedal stroke Knowledge. and take advantage of existing in a Knowledge model parameters on the calculation and analysis functions of the test results showed that expert system for automobile brake master cylinder and pedal stroke Knowledge Base has been designed to achieve the desired objectives. (2008-04-17, Visual C++, 315KB, 下载33次)
OMEGA家族芯片简介:
1997年，STMicroelectronics将MPEG器件、可编程传输器件以及CPU集成在单一的芯片中，制成了OMEGA 家族中第一片STi5500，为机顶盒以及数字电视的蓬勃发展铺平了道路。在此之后，ST使用了相同的芯片组架构进行DVD的开发。DVB和DVD芯片组中的MPEG解码和CPU部分的架构是相同的，只需要改变部分电路，就可以将产品用于卫星、有线、DVD等不同产品中。
ST的OMEGA是一个系列的芯片组，包括：STi5512、STi5514、STi5516、STi5517、STi5518、STi5519、STi5528、STi5580、STi5588、STi5578、STi4629等。
OMEGA family of chips Profile: 1997, STMicroelectronics will be MPEG devices, programmable transmission devices, as well as CPU integrated in a single chip, made of the OMEGA family, the first chip STi5500, for set-top boxes and digital television has paved the way to flourish. After that, ST uses the same chipset architecture to the development of DVD. DVB and DVD chipset and the CPU of the MPEG decoding part of the structure are the same, only need to change part of the circuit, you can Products for satellite, cable, DVD and other products. ST (2008-04-08, Others, 496KB, 下载46次)