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Linux TCP/IP Stack. 1: Physical. Layer. 2: Data. Link. 4: Transport. 3: Network. 7: Application. 6: Presentation. 5: Session. Interface Layer (Ethernet, etc.) Protocol ...
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Author: hkhot |
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Description: IEC62056绿皮书，包括通信协议、通信规程等内容。This fifth edition of the "Green Book" includes the specification of the communication protocol
layers based on:-
IEC 62056-42, Electricity metering- Data exchange for meter reading, tariff and load control- Part
42: Physical layer services and procedures for connection-oriented asynchronous data exchange
IEC 62056-46 Ed 1.0, Electricity metering- Data exchange for meter reading, tariff and load control
- Part 46: Data link layer using HDLC protocol, as amended by 13/1336/CDV, draft Amendment 1
draft IEC 62056-47 Ed.1.0, 13/1337/CDV, Electricity metering- Data exchange for meter reading,
tariff and load control- Part 47: COSEM transport layers for IPv4 networks
draft IEC 62056-53 ed. 2.0, 13/1338/CDV, Electricity metering- Data exchange for meter reading,
tariff and load control- Part 53: COSEM application layer
Annex E of IEC 62056-21, Electricity metering- Data exchange for meter reading, tariff and load
control Part 21: Direct local data exchange, is incorporated (Clause 6).
For easier use, in this edition, changes compared to Edition 4 are marked by highlighted text.
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Size: 577536 |
Author: 李姚 |
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Description: The SATA2 core implements the Command, Transport and Link Layers of
the SATA2 protocol and provides a Physical Layer Wrapper for
the transceivers.
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Size: 54272 |
Author: akjfklaskdfj |
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Description: ：针对机器人遥操作系统中采用传统网络传输协议传输实时数据的局限性，比较分析TCP和UDP协
议的传榆特点，提出了在UDP协议上传输TCP服务的TCPOVERUDP技术，详细阐述了TCPOVERUDP
技术的实现细节，在应用层实现了TCPOVE RUDP传输技术，并把TCPOVE RUDP技术应用到机器人遥
操作系统的视频传输中。实验结果表明TCP OVE R UDP技术在降低视频数据传输丢包率和传输时延两个
方面都具有良好的性能。-Chuan Yu characteristics of TCP and UDP protocols: the limitations of traditional network transport protocol to transmit real-time data for teleoperation system, comparative analysis, the the transmit TCP service TCPOVERUDP UDP protocol technology, elaborate technology implementation TCPOVERUDP details in the application layer TCPOVE RUDP transmission technology, and video transmission TCPOVE RUDP technology applied to teleoperation system. Experimental results show that TCP OVE R UDP technology in two ways to reduce the packet loss rate and the transmission delay of the video data transmission has a good performance.
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Author: caowenming8 |
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Description: Documentation and examples about the TDI (Transport Driver
Interface) architecture are very rare. At the time of writing, no
oXcial documentation exists on the Veld of TDI, besides some
small hints given at MSDN2 and OSR3, which may only be found
by having previous experience. The NDIS layer, even though being
settled at a much more deeper layer and thus not being suited
too well, is much better documented than the higher TDI layer.
As a consequence, some people and companies proVt by selling
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Size: 877568 |
Author: Stp fs |
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Description: 通信系统中升余玄滚降特性,真实反应了通信系统的抑制码间串绕的原因.-The rapid growth of wireless communications and its prevasive use in all walks of life are changing the way we communiction in some foundamental ways.Most important,reliance on radio propagation as the physical mechansim resonsible for the transport of information-bearing signals from the transmitter to the receiver has endowed communcations with a distinctive feature,namely,mobility.
Modern Wireless Communications is a new book aimed at the teching of a course that could follow a traditional course on communication systems,as an integral part of an undergraduate program in electrical engineering or as the first graduate course on wireless communication.The primay focus of the book is on the physical layer, emphasizing the fundamentals of radio propagation and communication-theoretic aspects of multiple-access techniques.Many aspects of wireless communcations are covered in an introductory level and book form for the first time.
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Size: 3072 |
Author: 马 |
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Description: This class implements the common aspects of "transport", one layer below the specific wire protocols such as POP3, IMAP, or SMTP.
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Size: 3072 |
Author: lengugeng |
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Description: SIP协议是NGN中的重要协议，是一个基于文本的应用层控制协议，独立于底层传输协议TCP/UDP/SCTP，用于建立、修改和终止IP网上的双方或多方多媒体会话。-NGN SIP protocol is an important protocol is a text-based application-layer control protocol, independent of the underlying transport protocols TCP/UDP/SCTP, for creating, modifying and terminating IP network multimedia sessions two or more parties
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Size: 564224 |
Author: chen |
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Description: 宽带无线通信系统的发展面临频谱资源有限、传输环境复杂等挑战，而高性能信道编码等物理层关键技术可以有效应对宽带无线通信系统的传输速率与传输质量需求-Development of broadband wireless communication systems faced limited spectrum resources, environment, transport and complex challenges, and high-performance physical layer channel coding and other key technology can effectively deal with broadband wireless communication system transmission rate and transmission quality requirements
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Size: 12533760 |
Author: 李科 |
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Description: A random stream of bits the size of the desired transport block undergoes
Downlink Shared Channel (DL-SCH) coding to rate match the transport block
to the available PDSCH bits. Scrambling, modulation, precoding and layer
mapping are then applied to form the complex PDSCH symbols. AWGN is added
to these symbols after which channel decoding and demodulation are
performed to recover the transport block. Using the recovered transport
block a BER curve is plotted for a given range of SNR values.
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Size: 6144 |
Author: anju |
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Description: Lattice Boltzmann simulations of water transport in gas diffusion layer of a
polymer electrolyte membrane fuel ce-Lattice Boltzmann simulations of water transport in gas diffusion layer of a
polymer electrolyte membrane fuel cell
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Size: 2502656 |
Author: Ahmad |
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Description: 本标准适用于具有串行比特数据编码传输的远动设备和系统，用以对地理广域过程的监视和控制.制定远动配套标准的目的是使兼容的远动设备之间达到互操作. 本配套标准利用了国际标准IEC 60870-5的系列文件. 本标准规定了IEC 60870-5-101的应用层与TCP/IP提供的传输功能的结合. 在TCP/IP框架内，可以运用不同的网络类型，包括X.25，FR(帧中继)，ATM(异步传输模式)和ISDN(综合服务数据网络). 根据相同的定义，不同的ASDU，包括IEC 60870-5全部配套标准(例如IEC 60870-5-102)所定义的ASDU，可以与TCP/IP相结合，不过这些在本标准中没有进一步说明.-This standard applies to telecontrol equipment and systems with coded bit-serial data transmission for a wide area of geography process monitoring and control. Develop remote support standards aim is to achieve interoperability between so compatible remote device. the companion standard utilizes the international standard IEC 60870-5 series of documents. this standard specifies the binding IEC 60870-5-101 application layer and the TCP/IP provides transport functions. in the TCP/IP frame, you can use different network types, including X.25, FR (Frame Relay), ATM (Asynchronous Transfer Mode) and ISDN (integrated services Digital network). according to the same definition, different ASDU, including all the supporting IEC 60870-5 standard (eg IEC 60870-5-102) ASDU defined, it can be combined with TCP/IP, but they did not further described in this standard.
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Author: lucsheng |
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Description: Cross PHP Framework是一个高效、轻量、易扩展的PHP开发框架。
Cross PHP Framework 1.1.1 改进内容：
一. 支持PSR标准,支持composer安装。
二. 一个项目多个app,便于多人分工.写好web后不用为api再写一次逻辑
三. 视图层采用原生php.支持layer布局,不同的页面风格只需指定不同的layer即可.
四. 通过解析url运-Cross PHP Framework is an efficient, lightweight and easy to scale PHP development framework.
Cross PHP Framework 1.1.1 improvements:
I. Support PSR standards, support for composer installation.
II. A project plurality app, to facilitate the division of people. Api written after the web do not have to write a logic
III. View layer uses native php. Support layer layout, different page styles can simply specify a different layer.
IV. By parsing url transport
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Size: 1831936 |
Author: 孙智 |
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Description: 基于TCP/IP通讯的仪器仪表应用层协议架构由于新一代仪器仪表的数据量大，传输距离远，实时性高，传统的基于RS232/RS485的串行数据传送方式已不能满足要求，而基于TCP/IP的以太网数据通讯方式,传输距离大(通过internet，理论上无限远)，速度快，是当前新一代仪器仪表数据传输的理想方式。
基于单片机(如MCS51+RTL8019AS)的以太网接入技术已经相当成熟，可以方便的与PC机连接。根据仪器仪表嵌入式应用的要求（如实时性），我们采用TCP协议或UDP协议进行数据传输。TCP是一种可靠的传输协议，但效率相对较低，UDP是一种由用户自己来保证传输可靠性的传输协议，但效率较高。
本协议目前采用TCP，以太网接口模块作为服务器方，任何时候仅提供一个连接。
本文档的适用范围为带有以太网接口模块的仪器仪表。
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Instruments based application layer protocol architecture TCP/IP communication since the new generation of instrumentation data capacity, transmission distance, high real-time, based on the traditional serial data transfer mode RS232/RS485 can not meet the requirements, and based on TCP/IP Ethernet data communication mode, the transmission distance is large (via internet, theoretically infinite) speed, is the ideal way to present a new generation of instrumentation data transmission.
Microcontroller-based (such as MCS51+ RTL8019AS) Ethernet access technology is already quite mature, it can be easily connected to a PC. According instrumentation embedded applications (such as real-time), we use the TCP protocol or UDP protocol for data transmission. TCP is a reliable transport protocol, but the efficiency is relatively low, UDP is a transmission by the users themselves to ensure the reliability of the transmission protocol, but more efficient.
The protocol currently used TCP, Etherne
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Size: 18432 |
Author: 宇龙 |
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Description: 建立BP神经网络， 12个隐层神经元，4个输出神经元
tranferFcn属性 'logsig' 隐层采用Sigmoid传输函数
tranferFcn属性 'logsig' 输出层采用Sigmoid传输函数
trainFcn属性 'traingdx' 自适应调整学习速率附加动量因子梯度下降反向传播算法训练函数
learn属性 'learngdm' 附加动量因子的梯度下降学习函数(The BP neural network is established, with 12 hidden layer neurons, and 4 output neurons
The tranferFcn property'logsig'hidden layer uses the Sigmoid transfer function
The tranferFcn property'logsig'output layer uses the Sigmoid transport function
TrainFcn property'traingdx'adaptively adjusts learning rate, additional momentum factor, gradient descent, back propagation algorithm, training function
The learn property'learngdm'is a gradient descent learning function with additional momentum factors)
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Author: 7123
|
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Description: 车载以太网DoIP诊断 ISO 13400 （全）（非扫描版）
ISO 13400-1 2011 General information and use case definition；
ISO 13400-2 2012 Transport protocol and network layer services；
ISO 13400-3 2016 Wired vehicle interface based on IEEE 802.3；
ISO 13400-4 2016 Ethernet-based high-speed data link connector.(The ISO documents are for DoIP Diagnostic. ISO 13400-1 2011 General information and use case definition. ISO 13400-2 2012 Transport protocol and network layer services. ISO 13400-3 2016 Wired vehicle interface based on IEEE 802.3. ISO 13400-4 2016 Ethernet-based high-speed data link connector.)
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Size: 8699904 |
Author: 木风霖 |
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