多对多通信

In this paper, firstly we researched the relationships of the communicating distanceand the channel characteristic, the effect of the multiple scattering to the laserpropagation, the requirement of the laser communication to the ATP system and theway to determine the angular dispersion and receive field of view. It is proved that inlight haze weather, letting the input and output laser\'s wavelength are diferrent witheach other, after passing by the filter, it can avoid backward scattering effectually andfor the communication within 15km, the influence of the multiple scattering inatmosphere can be ignored.

论文对通信距离与信道特性、多次散射对光传输的影响、无线激光通信对ATP带宽的需求以及光束发散角和接收视场角等重要系统性能参数和指标进行了分析和研究，证明了在轻霾天气状态下，使系统中两终端发送的激光束波长各不相同，经过光束滤波，可以有效地消除后向散射干扰；在15km的通信距离范围内，大气中的多次散射对无线激光通信光传输的影响可以忽略。

In this paper, the communication protocols and cooperation protocols of multi-agent system are studied and discussed.

论文中主要对多Agent系统的通信协议和合作协议进行了研究。

It is the shortener of the analog domain in the circuit design that can help to realize the multiple communications standards.

人们希望获得功能多样、灵活性强、可测性强的硬件电路，以实现对不同通信标准多信道信号的接收。

We hope to help more of the synergistic communications understanding.

希望能帮助大家对协同通信有更多的了解。

The Internet switching service method for providing an Internet switching service to a subscriber connected to the Internet (214) to make an Internet telephone call by using an ID of a receiver are achieved by inputting the ID of a receiver who the subscriber wishes to communicate with, searching a data base (202) where a plurality of IDs and communications address data of the IDs are previously stored, for communications address data corresponding to the IDs, sending the searched communications address data to the subscriber, and the subscriber performing a telephone call, a fascimile transmission or sending a post by using the searched communications address data.

对与因特网(214)连接的用户提供因特网交换业务以利用接收方ID进行因特网电话呼叫的因特网交换业务方法，通过下列步骤实现：输入该用户想与之通信的接收方ID，对先前存储有多个ID和这些ID的通信地址数据的数据库(202)搜索与该ID对应的通信地址数据，将搜索到的通信地址数据送给用户，以及该用户通过用搜索到的通信地址数据进行电话呼叫、传真发送或发送邮件。

At the same time, on the base of analysis of the present situation, the development trend and the leading edge technology, the necessity and feasibility about the exploitation of the full hydraulic bulldozer"s sate monitoring and fault diagnosis system is given; According to the structure, working feature and working environment, it works out system schema and system composition; The system is divided into display module, communication module and fault diagnosis module by means of block design, the implementation method and key parameter are also given; In light of the features of the full hydraulic bulldozer, the state monitoring and fault diagnosis platform composed of controller RC6-9 and display DI2/10 is designed based on CAN-Bus and the hardware design is completed; It lists the measured values and state of monitored parameters which should be real-time displayed in monitoring module as well as the data which will be transmitted; Furthermore, On the base of the study of, it gives 34 kinds of constant faults" diagnosis methods; Using BODAS software and DPS software, it compile the program code of the controller and the displayer; At last, this paper design and make the simulation test device of control system of construction machinery, through the experiment, the realizability, the categoricalness, the reliability, the stability and real-time are tested, in addition, the improved methods are given.

本文收集整理了国内外智能推土机研究的相关文献资料，综合分析了国内外智能推土机的研究现状、发展趋势和前沿技术，论证了开发全液压推土机智能系统的重要组成部分&全液压推土机状态监测与故障诊断系统&的必要性和可行性；根据全液压推土机的结构、作业特点和作业环境，制定了全液压推土机状态监测与故障诊断系统方案，确定了系统的结构组成；采用模块化设计方法，将整个系统分成了显示、通信和故障诊断三个模块，给出了各模块功能的实现方法，确定了各模块的关键技术参数：选用RC6-9和DI2／10作为系统的控制器和显示器，用CAN总线搭建了系统的通信平台，完成了系统的硬件设计；确定了系统监测参数和通信数据，对全液压推土机常见故障特征进行了分析，给出了34种常见故障的诊断方法；在BODAS软件和DPS软件的集成编程环境下，编写了控制器和显示器程序；设计并制作了工程机械控制系统模拟试验板，并在此基础上通过多次的程序调试与试验，对所设计的全液压推土机状态监测与故障诊断系统功能的可实现性、完备性、可靠性、稳定性和实时性进行了检验，证实了此系统的可行性，并提出了进一步的改进方案和措施。

This system uses the control style of serial communication. The connection control between the ARM embedded system and the CPLD replaces of the control between computer and CPLD, because the utilization of ARM intellectualizes the system and simplifies the program. The utilization of CTLD increases the pin numbers connected with the peripheral device.

系统采用串行通信方式，用ARM嵌入式系统与CPLD相连接取代传统上采用的计算机连接CPLD方式的控制，由于ARM的运用使系统控制阵列天线更具智能化、应用程序更简化，CPLD的使用大大增加了与外设相连接的引脚数，满足了项目中对多条控制线的需求。

Bauds five competitive power models, key industrial success factors and EFE Matrix are used to analyze and estimate the macro environment and task environment situation. It states, on one hand, ChangQing Communication is facing to safeguard long celebrates the once in a thousand years strategic opportunity which the oil-gas field big development follows up to serve, meanwhile along with national telecommunication fees further decline as well as 3G license plate provide, ChangQing Communication also faces intense competitions and potential competitions both abroad and at home.

运用波特的五种竞争力量模型、行业关键成功因素及外部因素矩阵，对长庆通信公司所处的宏观、条件环境状况进行了分析和评价，认为公司面临着为保障长庆油气田大发展而跟进服务的千载难逢的战略机遇；同时随着国家电信资费的进一步下调以及3G牌照的发放，公司将面临更多竞争因素和潜在竞争者的激烈竞争，以及市场潜在风险增大和竞争对手强大等威胁。

The results of the simulation analysis and experiments indicate that the loss of ultraviolet scattering transmission in atmosphere is high because of the particle scattering and absorbing in solar-blind zone; that is, the received power can descend 20 dB with the distance increasing 10 times. Therefore, the ultraviolet scattering is fit for short range communication. In short range, the pulse extension due to scattering is at microsecond order and its influence for low and moderate bit rate communication systems is weak. Since the light output power of a single ultraviolet LED is low, a multi-LED array can be used to increase the transmit power and extend the communication range.

仿真分析与实验结果显示：日盲区紫外光在大气中散射传输时由于大气粒子的强烈散射与吸收，传输损耗较大，距离每增加10倍，接收功率下降20dB，因此日盲区紫外光大气散射通信适用于近距离通信场合；近距离传输时散射造成的光脉冲多径展宽为微秒量级，对中低速通信系统影响较小；单个紫外LED发光功率较低，可通过多个LED阵列来提高发射功率，增大通信距离。

It can realize point-to-point or point-to-multipoint real-time communication.

它能实现网络中点对点、点对多点的实时通信。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。