串行通信

Simultaneously, the system also has with the computer asynchronous serial communication interface based on the programmable logic device CPLD.

系统包括模拟开关、测量放大器、AD转换器、CPLD中心逻辑控制器、掉电数据保存单元，系统实现了通过CPLD编程完成与计算机串口间异步串行通信功能。

This system works according to the asynchronous serial data transmission protocol by programming a CPLD chip.

论文采用的通信协议是异步串行通信协议。

A new real-time and long-distance communication means between epigyny computer and 196-series multi-singlechip system is put forwarded.

串行通信作为通信标准之一，因其硬件简单、成本低、操作方便、实现容易，在实际工程中得到广泛应用[1]。

By download cable to download the appropriate procedures, While controller can be used as the core control system in the independent mode, from the light sensor acquisition of position information, after TLC0838 conversion SCM independent, and the final results sent to the data processing system of the robot executing agencies -- servo control system implementation; the other hand, through the MCU serial communication interface with the PC establishment of communication links, controller work in the PC expansion board functional model.

通过下载电缆下载相应的程序，一方面控制器可作为系统的控制核心工作在独立运行模式，即由传感器采集光源的位置信息，经过TLC0838转换后单片机可以独立进行处理，并将最后的处理数据结果送往机器人系统的执行机构——舵机控制系统执行；另一方面，通过单片机的串行通信接口与上位机建立通信联系，使控制器工作在PC机功能扩展板模式。

According to actual condition, a model of wall thickness of rotary kiln is established. The constant coefficients in the model, including thermal conductivity, heat transfer coefficient, Fourier coefficient and contact resistance, are closely calculated. A formula of contact resistance is draw from a great deal of data of surface and inner temperature of rotary kiln. The wall thickness of rotary kiln is simulated by MATLAB. The simulation result is transmitted from MATLAB to DELPHI through a group of interface functions compiled by VC++. The basic graphs-circle and line are analyzed by the means of the technique of Visualization in Scientific Computing and the Bresenham arithmetic, and are realized the visualization of the wall thickness. The contents of communication between master computer and slaver computer are designed and the error control technique, the idea of multi-thread and the embedded assembly language are applied to realize the temperature data transmission and graph transmission, which largely improved the speed of transmission and the reliability and stability of system.

建立了符合现场实际的回转窑壁厚数学模型；结合现场采用红外测温仪测量所得的温度数据和回转窑的实际结构数据，确定出适合该模型的定常系数(包括导热系数、换热系数、傅立叶系数、接触热阻等)，并得出与回转窑工况的相近的接触热阻公式ln=T~(0.5154)-36.7868；利用MATLAB软件仿真出回转窑壁厚，并将运算结果通过在VC++的编译环境下编译出MATLAB和DELPHI的接口函数传输到该监测系统中，实现了温度数据的转换和交换；运用科学计算可视化技术和Bresenham扫描转换算法对基本图形——圆和直线进行分析，从而实现了仿真后的壁厚数据可视化；在研究异步串行通信方式的基础上，设计了该系统上下位机功能和通信内容，并运用差错控制技术、多线程思想以及嵌入式汇编语言实现了温度数据和图形数据在上下位机之间的远程传输，提高了数据传输的速率和系统的可靠性、稳定性。

This text put forward in analyzing technical and basic principle in the correspondence of adjoin orifice and NIOS development knothole construction iso - foundations and discuss a kind of according to the place of honor machine writes with the VB iso - high class language plait, a correspondence.

本文在分析接口通信技术的基本原理及NIOS开发板的结构等基础上，提出并讨论了一种基于上位机用VB等高级语言编写，下位机程序调试环境是NIOS开发套件中的SDK软件，最终实现它们之间的串行通信。

Furthermore, by using the normal serial interface RS-232C,we make the intelligence releaser realize communication with PC computer. By using the bus system, the target of remote controlling is realized. All of them strengethen the releasers functions and make it accord with requirements of distribution system.

此外，采用目前最常用的串行通信标准总线接RS-232C，实现了现场智能脱扣器与PC机的双向通信功能，通过总线系统达到遥调、遥控的目的，使得脱扣器的性能得到提高，功能得到增强，符合配电系统的要求。

It can realize protecting in the multi-situations. Furthermore, by using the normal serial interface RS-232C,we make the intelligence releaser realize communication with PC computer. By using the bus system, the target of remote controlling is realized. All of them strengethen the releaser's functions and make it accord with requirements of distribution system.

此外，采用目前最常用的串行通信标准总线接口 RS－232C，实现了现场智能脱扣器与PC机的双向通信功能，通过总线系统达到遥调、遥控的目的，使得断路器的性能得到提高，功能得到增强，符合配电系统的要求。

This dissertation first introduces the hardware connection between the RS - 232 connection and the electric cable line in the numerical control workshop network communication, then it analyzes and compares syzygy type network topology and star topology based on serial port expansion card.

本文首先介绍了数控车间组网通讯中RS232C接口与电缆线的硬件连接，然后对点对点式网络拓扑结构和基于串口扩展卡的星型拓扑结构进行分析与比较，从而得出数控车间串行通信连接系统的最佳方案。

FTU has serial communications port of RS-232. This serial sends the data that FTU has collected and incepts the moducation and command of Distribution Automatization station to FTU.

FTU配有RS-232串行通信接口，此串口负责FTU采集到的数据发送和配网主站对FTU调节、控制命令的接收。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。