安全通信

ASEAN Plus Three relations continue to expand and deepen in the areas of security dialogue and cooperation, transnational crime, trade and investment, environment, finance and monetary, agriculture and forestry, energy, tourism, health, labour, culture and the arts, science and technology, information and communication technology, social welfare and development, youth, and rural development and poverty eradication.

东盟加三关系继续扩大和深化在安全领域的对话与合作，跨国犯罪，贸易和投资，环境，金融和货币，农业和林业，能源，旅游，卫生，劳工，文化和艺术，科学和技术，信息和通信技术，社会福利和发展，青年和农村发展和消除贫困。

The general platform structure of hardware and software of the SCS-500E security and stability control system is introduced.Some techniques,such as,the characteristics of SCS-500E—high-speed communication based on FPGA,criterion of non-fault line tripping based on local electrical measurement...

介绍了该平台的系统构架、硬件组成和软件结构；对其基于现场可编程门阵列的高速同步串行通信和基于本地电气量的无故障跳闸新判据及定值映射管理等特点做了阐述；对SCS-500E安全稳定控制平台针对国家特高压线路示范试验工程进行的动模试验和数字仿真试验进行了说明；还介绍了该平台的工程应用情况。

ARM-based microcontrollers because of cost-effective, extensive third-party support and the good universalness is bound to lead to the development and a very wide application, terminal equipment used in recent years and PDA is hot subjects, and the ZigBee appearring near two years is a wireless communications technology, which is IEEE802.15.4-based application software protocols involved in networking, security, and in home automation, industrial building automation control systems which are widely used.

基于ARM的微控制器由于高性价比、广泛的第三方支持和良好的通用性必然导致发展和应用非常广泛，近年应用于各种终端设备和PDA是热点研究对象，而ZigBee技术是近两年出现的无线通信技术，它是以IEEE802.15.4技术为基础的一组涉及网络、安全、应用的软件协议，在家居自动化、楼宇自动化工业监控系统得到广泛的应用。

Shelter accessories: shelter air conditioner, electromagnetic screen, EMC professional manufacturer, electromagnetic shielding chamber, shielded gate, shielded machine room, NMR shielding chamber, high-voltage partial discharge shielding, electromagnetic protection chamber, copper mesh shielding room, shielding cabinet, microwave unreflected chamber, filter, honeycomb air-vents window, satellite earth station antenna, communication electronics, information system; large-screen command and control system; ruggedized computer technology and equipment, computer information system safety products; dual-use radar system, weather radar, microwave device and RF and microwave components, dual-use electron component and cable, connector and sensor etc.

方舱附件：方舱空调、电磁屏蔽、EMC专业制造商、电磁屏蔽室、屏蔽门、屏蔽机房、核磁共振屏蔽室、高压局放屏蔽、电磁防护室、铜网屏蔽房、屏蔽柜、微波暗室、滤波器、通风波导窗、卫星地面站天线、通信电子、信息系统；大屏幕指挥与控制系统；加固计算机技术与设备、计算机信息系统安全产品；军民两用雷达系统、气象雷达、微波器件及射频微波产品、军民两用电子元器件及线缆、连接器、传感器等

Is a company engaged in data network communications equipment sales and technical services, specialized company, focusing on basic data, as well as its network of value-added network, network security, network performance optimization and other fields.

成都元素科技有限公司是一家从事数据网络通信设备销售和技术服务的专业化公司，重点关注基础数据网以及其网络增值、网络安全、网络性能优化等领域。

The Cipher Card can realize fast communication with host, and has fast cryptological operation ability, and offers update ability for arithmetic and hardware structure. The Cipher Card supports dispersed storage and online reconfiguration for arithmetics and keys, and offers digital physical noise circuit and can generate veriest random data , and it provides USB host interface to external and supports the mode of safe initialization by itself based on USB carrier ,and supports the method of identity authentication based on USB carrier.

该加密卡可以实现与主机的快速通信，具有快速的密码处理能力，提供密码算法以及硬件结构的更新和升级能力，支持密码算法和密钥的分散存储和现场重构，提供数字物理噪声源，能够产生真随机数，对外提供USB主机接口，支持基于USB密码载体的自身安全初始化方式，支持基于USB物理载体的用户身份认证方法。

As a result, in order to improve communication quality, warrantee operating normally and safely, networks optimization becomes a very important issue.

为了改善网络通信质量，保证网络的正常运行和安全，网络优化工作成为一项重要的课题

All of these convenience people's work and life . However, because of technique reasons or attackers, the information may be wiretap, distort, or delete in deliver of process, information security suffered to threaten seriously.

然而，由于技术原因和人为攻击等因素，信息在传输的过程中很可能被窃听、篡改、重放和删除，网络通信的安全受到了严重威胁。

The goal is by giving students a global understanding about the principles of the computer networks, and making them understand the way to design, analyse and applicate the computer networks, to form a good preparation for the later study.

目的是使学生对计算机通信网络的基本原理有一个全面、系统的认识，掌握计算机网络的设计、分析和应用方法，为信息安全专业课的学习打下良好基础。

It is feasible to build effectual, economic and banausic safe base of Intranet, through segment the net, set VLAN, control communication operation, bind IP and MAC and switch port base on the 3rd layer switch, use to achieve our basic requirements to the network safety in using information system.

通过三层路由交换机Passport8600，以机制所建立的集成制造单元网络系统为具体实例，通过网络分段，设置VLAN，通信业务管理控制，进行IP地址、MAC地址和交换机端口绑定等措施，建立了有效、经济、实用的网络安全基础平台。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。