测验

华为 Quidway 系列多协议路由器，支持 PPP、FR、X25、SLIP、HDLC 等网络协议，用户可通过各种广域网线路接入 Internet 及互联互访。 路由器内置安全防火墙、NAT、RADIUS 安全认证，以及 CALL BACK 等多项互联安全防护功能；并通过 CA 认证协议的验证和 IPSec 隧道协议，在 Internet 上构建安全可靠的网络通道，基于硬件的数据加密，将保密数据加密后在隧道上传输，加密数据有可靠的保密性但牺牲了效率；非保密数据可以通过一般性安全处理在隧道上传输，保证较高的转发速率。硬件加密的算法采用专门的芯片（经过国家相关部门批准）进行加密，密钥长度大于 128 位，并提供高强度的一次一密功能。配合完全自主知识产权的软硬件平台，提供网络的安全互联和数据的安全传输的安全解决方案。 而 "备份中心"的可靠性备份解决方案，实现多种线路之间的任意备份和业务分担，为网络提供业界最坚固的保护屏障，保证网络的可靠运行。-Huawei Quidway series of multi-protocol routers to support PPP, FR, X25, SLIP, HDLC and other network protocols, users can through various WAN lines and Internet access to the Internet visits. Built-in security firewall router, NAT, RADIUS authentication, and a number of other CALL BACK Internet security protection functions; And through CA and validation of the agreement IPSec agreement on the Internet to establish a secure and reliable network access, hardware-based data encryption, data encryption confidentiality the tunnels on the Tunnel, a reliable data encryptio

在现代化的工厂里，对生产流程进行图像监控是提高企业管理水平、加强生产调度、合理安排工作人员、及时发现重大生产设备事故隐患的一个重要措施。-in the modern factory, the production processes for image control is to raise the level of corporate governance, the strengthening of production scheduling, reasonable arrangements for staff, the timely production equipment found significant risks of an important measures.

所谓短信猫，其实是一种工业级级GSM MODEM，通过串口与计算机连接，可以通过AT 指令控制进行短信收发的设备。国内目前应用较多的短信猫，都是以SIEMENS 或WAVECOM 模块为核心组装而成的，与普通手机相比更为稳定高效。-The so-called SMS cat is a kind of industrial-level GSM MODEM, connected through the serial port and the computer can be carried out through the AT commands to control the device to send and receive text messages. At present the application of the domestic cat more messages are to WAVECOM module SIEMENS or assembled at the core, and more stable compared to the ordinary high-performance mobile phones.

中国电信 东北9省 客服系统E_R设计-northeast China Telecom nine provinces customer service system design E_R

基于TMS320F2812的数据采集及处理系统-TMS320F2812-based data acquisition and processing system

低频信号发生器设计任务书 可供电子通信设计爱者练习制作-Low-frequency signal generator design book for the mission design of electronic communications are to practice making love

自己学习注册表时总结的一些学习的经验，其中有很多修改注册表的方法和一些经验

ARM APPLICATION AND SYSTEM DEVELOPMENT ON S3C4510B (介绍的很详细,很适合入门)-ARM APPLICATION AND SYSTEM DEVELOPMENT ON S3C4510B (described in great detail, it is suitable for entry)

Heap（堆）是第三种树结构。累加是一种二叉树，它关于子树节点的值比其父节点的值小。积累是树根的最大价值保证。这被称为反应堆性能堆中的最高性能。子树的累加可以放在左边的时候，左边的子树也可以放在右边的时候，右边的子树也可以，所以子树的性质大致有两种。

内附IC读卡器设计方案,该设计使用89C52和MCM200,里面有详细的设计过程及程序代码,相信有一定IC卡经验，技术及具有一定的计算机软/硬件技术（尤其是微处理单片机MCU技术）的同行定能将本文消化之后而能设计出诸多应用场合的产品.-containing IC reader design program, which is designed to be used 89C52 and MCM200. There are detailed design process and procedure code, I believe a certain IC card experience, Technology and certain computer software/hardware technology (especially microprocessor MCU MCU technology) counterparts can extend the after the text digest able to design many applications products.