以太网

According to the length of the tunnel and the distribution of the devices, disporting the tunnel into 24 sections and using 24 region controllers to control the devices which are in the section. The region controller communicates with the superhighway monitoring computer by the industrial ether net. The monitoring computer manages the controllers remotely.

根据隧道的长度和隧道内设备的分布情况将隧道分为24个区段，采用24个区域控制器对各个区段的设备进行分区控制，通过工业以太网实现区域控制器和隧道监控计算机间的通信，由隧道监控计算机对区域控制器进行远程集中管理。

Usually, enterprise employees of different sectors are not centralized when they work. They are scattered in different floors or regions. As network users, they need to be centrally managed; Many sectors demand for high network security to prevent data from being eavesdropped. They can not share one same Ethernet with other sectors.

在企业中，很多部门的员工并不是集中办公，他们分布在不同的楼层或地域，做为网络用户，他们需要集中管理；也有很多部门在网络上需要越来越高的安全性，不能和其他的部门混用同一个以太网段，以防止数据窃听。

If only Ethernet packets are encapsulated, the range of ISL frame sizes is from 94 to 1548 bytes.

如果仅封装以太网包，ISL帧大小的范围是从94到1548字节。

The embedded information safety platform features the CPU micro controller as one network processing chip with ARM940T kernel containing real-time embedded operation system; enciphering and deciphering hardware chip comprising IPSec algorithm chip and symmetric algorithm chip; I/O interface including two 10/100 M adaptive Ethernet interfaces, one USB main control interface and one serial interface.

本发明涉及一种嵌入式信息安全平台，特点是，CPU微控制器为一个网络处理芯片，片内处理器为ARM940T核，嵌入式实时操作系统置于该核内；加解密硬件芯片由IPSec算法芯片、对称算法芯片组成；输入输出接口包括2个10/100M自适应以太网接口、USB主控接口，串口接口。

It was also them who introduced the concept of "Combined Service Platform" of Chinese industry and first put forward the technical concept of "Industrializing Ethernet, Simplifying Industrial Communication" in the world.

这也是他们谁提出了&综合服务平台&我国产业的概念，首次提出了&产业化以太网技术的概念，简化工业在世界上传播&。

So it is important to investigate and develop an intellectualized instrument supporting protocol of Industrial Ethernet.

因此研究基于工业以太网的嵌入式数据监控技术具有极其重要的现实意义。

To realize the aim need control net more opening , more intercommunicating and more distracting ,but the technology of PLC net and CAN bus which widely used in factory have localization, they can not fit the new development of factory control net, fortunately the technology of Ethernet used in factory control appear.

由于工业现场目前广泛应用的PLC网络和现场总线自身技术的局限性以及多种总线标准分割共存局面的存在，限制了工控领域网络化的进一步应用。这种局限性促使了以太网和工业现场总线网络混合控制网络体系的出现。

Other characteristics Of smartvue S 4c550: the dynamic range " 95 dB (120 dB maximum), the minimum recorded luminous flux " of 0,3 luxes, is located the built-in adapter Of ethernet, port USB 2.0, supported administration with the aid of web- interface with the use of browsers IE 5.0+, and also with the use of cell phones with the installedweb- browser.

其他特点smartvue s 4c550 ：动态范围& 95分贝（ 120分贝最高），最低录得的光通量& 0，3 luxes ，位于内建在以太网适配器，连接埠USB 2.0 ，支持政府当局与援助的Web介面与使用的浏览器版本，也与使用手机与安装网络浏览器。

Other characteristics Of smartvue S 4c550: the dynamic range " 95 dB (120 dB maximum), the minimum recorded luminous flux " of 0,3 luxes, is located the built-in adapter Of ethernet, port USB 2.0, supported administration with the aid of web- interface with the use of browsers IE 5.0+, and also with the use of cell phones with the installedweb- browser.

其他特点smartvue语4c550 ：动态范围& 95分贝（ 120分贝最高），最低记录光通量&的0，3 luxes ，位于内置的以太网适配器，端口USB 2.0 ，支持政府借助网络接口使用浏览器IE浏览器5.0 +，并与使用手机与安装网络浏览器。

Other characteristics Of smartvue S 4c550: the dynamic range – 95 dB (120 dB maximum), the minimum recorded luminous flux – of 0,3 luxes, is located the built-in adapter Of ethernet, port USB 2.0, supported administration with the aid of web- interface with the use of browsers IE 5.0+, and also with the use of cell phones with the installedweb- browser.

其他特点smartvue收盘4c550：动态范围-95分贝(120分贝最高)光通量最低录-0，3luxes，地处内置的以太网适配器，港口的USB2.0、政府支持与援助网络接口与使用5.0浏览器即+、并得使用手机与安装网络浏览器。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。