通信的

Satellite mobile communication system has become one of the hot communication research fields and a useful tool for modern communication.

摘要卫星移动通信系统已经成为当前通信领域中发展非常迅速的研究方向和现代通信强有力的手段之一。

This article mainly introduces the construction of distributed numerical control system, communication protocols, debug process, and function of DNC communication and managing software .

文章介绍了分布式计算机数控系统通信网络的结构、通信协议、调试步骤以及通信与管理软件的主要功能。

Under the leadership of the National Headquarters for Earthquake Disaster Mitigation, as of 8:00 on May 19th, the telecommunications sector has sent out 26,000 people for repairing, dispatched 391 emergency telecoms vehicles, 979 satellite telephones, 7422 power generators, over 2000 sets of emergency communications equipment and equipment for repairing, 1000 cells specifically for the satellite telephones and 150 sets of field power supply equipment.

在国务院抗震救灾指挥部的统一指挥下，截至5月19日8时，通信行业已出动抢修人员2.6万人、调动391台应急通信车、979部卫星电话、7422台发电油机、2000多套其它应急通信和抢修设备，1000块卫星电话专用电池，150套野外电源装备，累计调用卫星转发器资源496 MHz，发送应急提示和抢险指导等方面的短信9亿条。

MIMO can improve the capacity and the quality of communication and it need not to expand frequency band.

MIMO技术在不增加频谱带宽的情况下，可以提高无线通信系统的通信容量和通信质量。

The key point of the thesis was system's communication. The paper offered a simple and effective communicate method which achieved data communication between computer and PLC. The paper discussed the system how to change data、transfer and rejigger parameter accurately、advert problems in communication process between computer and PLC. This method is applied and innovative. The paper described the TCP protocol and its encapsulated Winsock module and its application for data communication of remote control. User defined protocol is used for data exchanging between the client and the control server.

本文提出了一种简单有效的通信方式实现了计算机通过串口与PLC的本地数据通信，阐述在实现上位机与下位机的通信过程中，如何在上位机进行数据转换、参数正确传递和更改以及实现方法和注意的问题，该方法具有一定的实用性和创新性；基于TCP协议，使用封装组件Winsock进行实时控制的数据交换是远程控制的核心任务，对此文中首先探讨选用TCP协议和Winsock封装组件的理由，详细描述了如何通过Winsock组件进行数据通信以及自定义协议。

The main research issues of RRM on the circumstances of different standard wireless communication systems and various services are also discussed in the paper.

文章结合当前正在研究的后3代(B3G)、第4代(4G)移动通信系统的发展和处于运营及推广阶段的第3代移动通信系统，分析了未来移动通信系统中无线资源管理系统的关键技术，探讨了多体制标准下的无线通信网络和多种业务情况下的无线资源管理的研究方向。

The key technologies of radio resource management for future mobile communication system are analyzed, based on the development of B3G and 4G mobile communication systems and the third-generation mobile communication system. The main research issues of RRM on the circumstances of different standard wireless communication systems and various services are also discussed in the paper.

文章结合当前正在研究的后3代(B3G)、第4代(4G)移动通信系统的发展和处于运营及推广阶段的第3代移动通信系统，分析了未来移动通信系统中无线资源管理系统的关键技术，探讨了多体制标准下的无线通信网络和多种业务情况下的无线资源管理的研究方向。

The key technologies of radio resource managementfor future mobile communication system are analyzed, based on the development of B3G and 4G mobile communication systems and the third-generation mobile communication system. The main research issues of RRM on the circumstances of different standard wireless communication systems and various services are also discussed in the paper.

文章结合当前正在研究的后3代、第4代移动通信系统的发展和处于运营及推广阶段的第3代移动通信系统，分析了未来移动通信系统中无线资源治理系统的要害技术，探讨了多体制标准下的无线通信网络和多种业务情况下的无线资源治理的研究方向。

The design of graphics module is based upon vector graph. Database module includes three tables. They are reading data table, writing data table and web data table. The realize of communication function and self-define communication protocol between client and embedded server in communication module is based upon socket communication theory.

其中图形库模块中界面图形的设计主要是运用基于图元的方法；数据库模块中数据的存储主要设计了三个记录表：读入数据记录表、写至数据记录表和网页数据记录表；通信库模块中的通信功能以及客户端与嵌入式服务器端的自定义通信协议，是在Socket通信原理的基础上实现的。

The paper describes the implementation method of the software and hardware in detail; explains the sulphuration technology in production of rubber and how to control sulphuration machine by PLC; discusses the principle, current situation and development trend of the DCS; recommends the serial communication in industrial and how to realize it in DELPHI; analyzes the communication protocols of series of LGs MASTER-K10 PLC and on the base of which, realized the communication between upper-computer and low computer; discusses the realization flows of control system on upper-computer in detail, the software and hardware of module every design; introduces the functions and realization of query software on client computer.

详细论述了控制系统硬件及软件的实现方法；阐述了橡胶生产中的硫化工艺以及如何用PLC对硫化机进行程序控制；讨论了集散控制系统的原理、研究现状及发展趋势；介绍了工业控制领域中的串行通信以及如何在DELPHI中实现串口通信；分析了LG公司MASTER-K10系列PLC的通信协议，并在此基础上实现了上位机与下位机的通信；详细讨论了上位机控制系统的实现流程、各模块的软硬件设计；详细介绍了客户端查询软件的功能及实现。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。