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外部硬件
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  exterior hardware
     The connecting diagram of PC′s exterior hardware and the progamming method ofcontrol software is given,and the problems on using CF一20MR such as the input points arenot enough,the timing limit is too small are solved by skillfully programming。
     文中给出了PC外部硬件联接及控制软件,并用编程技巧解决了CF一20MR控制深孔钻时输入触点不够和计时范围不够等问题。
短句来源
     It is based on the technique of multitask and multithreading of windows operating system, Win32 APL and MATLAB DLL, it takes VC++6.0 as softwre's exploitation flat and realizes intercommunication and control of exterior hardware and common PC. The dummy numeric oscillograph can carry out rapid response and wave character display; it also utilizes math operation function of computer to analyze the character and frequency of signal.
     其以Windows操作系统多任务多线程技术、WIN32API和MATLAB DLL技术为基础,以VC++6.0软件为开发平台,实现外部硬件同通用PC机的双向通信与控制,能进行快速响应和波形显示,利用计算机的数学运算功能对信号进行特征和频谱分析。
短句来源
  external hardware
     This project administrates the external hardware to control the inverter pendulum by downloading the simulation model generated by Simulink to the target real-time kernel.
     经过分析比较,确定了基于MATLAB的Real-Time Windows Target实时内核开发硬件驱动程序的实时控制方案,将Simulink生成的仿真模型下载到目标实时内核中运行,驱动外部硬件设备,实现对倒立摆的控制。
短句来源
     This workspace administrates the external hardware to control the inverter pendulum by downloading the simulation model generated by Simulink to the target real-time kernel.
     经过分析比较,确定了利用MATLAB RTW实时工具箱构建一个实时控制平台的方案,将Simulink生成的仿真模型下载到目标实时内核中运行,驱动外部硬件设备,实现对倒立摆的控制。
短句来源
     In hardware handling, realize the communication of PC and external hardware with serial communication.
     在硬件处理中,用串行通信实现PC机与外部硬件的通信。
短句来源
     FPGA is used as the buffer memory as well as the generation of the timing circuit control module during the operation of read, program and erase and so on, from which one can easily find the advantage of FPGA that saving external hardware resource and be programmable.
     FPGA既作为高速输入数据传输到FLASH中间的缓存,又实现对存储器的读写及擦除等操作时序的控制,充分体现了FPGA节省外部硬件资源和可编程的优点。
短句来源
     Real-time simulation often requires a computer to interact with external hardware in a dynamic loop.
     实时仿真通常要求计算机在一个动态循环中与外部硬件相互作用。
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  “外部硬件”译为未确定词的双语例句
     RAID can be implemented with software or hardware, and hardware RAID can also be divided into host-based RAID and SCSI-SCSI RAID.
     RAID可以由软件或硬件实现 ,硬件RAID又可以分为主机内部硬件RAID和主机外部硬件RAID。
短句来源
     This paper analyzes the time sequence matching between the fixed-point DSP TMS320F2812 and the external device,introduces the hardware designs and provides the related schematic diagram and source program.
     但是,当遇到读、写周期十分缓慢的输入/输出设备,如液晶显示模块、打印机、键盘时,就需要设计相应的外部硬件等待电路。 本文分析了定点DSP芯片TMS320F2812与外部设备接口时序的匹配问题,着重探讨了TMS320F2812与慢速设备直接连接的硬件设计,并提供了相关的原理图和源程序。
短句来源
     A/D consisting of PIC12F629's comparator collects voltage input sign. D/A consisting of PIC12F629's PWM and RC-Filter gives voltage output sign. The operation of the controller is entirely realized by software within the PIC12F629.The controller is used successfully in measuring temperature system and speed adjustment of electromotor.
     介绍一种控制器,该控制器以单片机 PIC12F629为核心,利用其中比较器构造的单积分 A/D 模块实现数据的实时采集,再经单片机的脉宽调制 PWM 处理和阻容滤波完成 D/A 转换并输出控制信号.给出了单片机接口与其外部硬件的连接电路以及软件的实现方法.该调节器可用于温控系统和小型电机调速等场合.
     The mixed control chip SG3525A combined with hardware PI controller generates the high-frequency PWM pulse for the first inverter.
     其中变极性电源的一次逆变PWM信号由PWM发生芯片SG3525A,配以外部硬件电路PI调节器产生;
短句来源
     Host-based RAID has higher operation efficiency and better management capability than SCSI-to-SCSI RAID .
     主机内部硬件RAID又比主机外部硬件RAID具有更高的运行效率和管理能力。
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  external hardware
In this note a method to reduce the time interval Δt between successive exposures by means of an external hardware synchronized with the video camera is described.
      
Add stainless steel inter nal/external hardware and you have selected the ultimate pump to handle nasty fluids.
      
Additionally, our software can interface with analogue telephone lines via with the accompanying external hardware.
      
Any external hardware-based interface would need to be configured before the processor can boot as well.
      
An I2C bus is used to expand computational capabilities and to allow data exchange between components and external hardware.
      
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This paper describes a designed PID excitation regulation device in which Intel 8080 single board microcomputer is adopted asits basic control unit.The output of the regulator controls the thyristor-fed excitation system of a generator.The flow charts of main software and the test results in laboratory are given.

本文叙述了微处理机型励磁调节器的设计和某些试验结果,基本控制设备是8080系统的单板微型计算机及一些外部硬件和信号变送器。调节器的输出直接控制大功率的可控硅整流桥,即用于控制可控硅励磁装置,励磁调节规律采用经典的PID调节,本文中还给出发电机运行时励磁调节器所使用的主要的软件流程图,本装置在试验室小发电机上进行了许多试验,结果是满意的。

Designs and implements an adaptive differential pulse-code-modulation(ADPCM) system for encoding and decoding in the sub-band coding (SBC) system ofspeech,based on a Z-80 microprocessor. At transmitter the 16-bit binary digital signals are compressed as 3 or 4-bit codewords by an encoder,and then at receiver using a decoder to recover these codewords. With optimal parameters selected, the system offers a dynamic range of 40 db and the process signal-to-noise ratios attainable are 25 and 33db respectively for...

Designs and implements an adaptive differential pulse-code-modulation(ADPCM) system for encoding and decoding in the sub-band coding (SBC) system ofspeech,based on a Z-80 microprocessor. At transmitter the 16-bit binary digital signals are compressed as 3 or 4-bit codewords by an encoder,and then at receiver using a decoder to recover these codewords. With optimal parameters selected, the system offers a dynamic range of 40 db and the process signal-to-noise ratios attainable are 25 and 33db respectively for the 3 and 4-bit codings. Implementing with no more than 20 IC chips and taking a Z-80 CPU which operates at 4MHz clock frequecy as the ALU, the encoder can process each sample value in a duration about from 3000 to 3200 CPU clock cycles with an acceptable input signal frequency greater than 1200Hz. The system is thus available to the real-time coding of speech at 8 sub-bands(with sampling frequency 8000Hz). With the addition of multiplier hardware, the processing speed of encoder can be increased in so much that the acceptable input signal sampling frequency is greater than 4000 Hz and the system can thus be used for the rael-time coding of speech at two sub-bands. Discusses in detail the algorithm design, step-size parameters and IC implementation and analyzes the microcomputer simulation.

本文基于Z-80微处理机设计并实现了一种适于语音子频带编码(SBC)的自适应差值脉码调制(ADPCM)编码器,在发送端,编码器把并行输入的16比特二进制数字信号压缩为3比特或4比特码字;在接收端,解码器将其恢复为原来的16比特,选择了最佳参数,3比特与4比特数编码分别能获得25和33分贝的信噪比,用不超过二十片集成电路实现的硬件编码器,以 Z-80A CPU作为算逻单元(4兆赫主频),对每一样值的处理时间小于3200个时钟周期,可接受的输入采样频率高于1200赫兹,能够用于语音(8000赫兹采样)八子频带实时编码,增加外部硬件乘法器可以大大提高编码器的处理速度,使可接受的输入采样频率大于4000赫兹,因此能够用于语音两子频带实时编码,文中对这种编码器的基本算法,阶步参数、计算机仿算和硬件实现进行了详细讨论。

In this paper the PC(Progamable Controller)uscd on the deep hole drilling is in-troduced.The connecting diagram of PC′s exterior hardware and the progamming method ofcontrol software is given,and the problems on using CF一20MR such as the input points arenot enough,the timing limit is too small are solved by skillfully programming。

介绍可编程序控制器在深孔钻电气自动控制中的应用。文中给出了PC外部硬件联接及控制软件,并用编程技巧解决了CF一20MR控制深孔钻时输入触点不够和计时范围不够等问题。

 
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