日志
电路与系统 相关例句(93)
|
1.Some examples of V-F-BCD transform method in the design of circuits and systems are given in this paper.
本文给出了电路与系统设计中V—F—BCD变换方法的若干实例。
2.In order to satisfy the requirements of teaching reform and course construction, "Analog Circui" and "Digital Circuit & System" courseware are made using the PowerPoint software, and have been applied for practical classroom teaching combining the simulation of circuits using EDA software.
根据教学改革和课程建设的要求 ,用 Power Point制作“模拟电子电路”和“数字电路与系统”多媒体教学课件 ,结合 EDA软件仿真 ,用于“电子电路”课程教学。
3.With the continuous development and application of EDA design methodologyfor VLSI circuit and systems as well as the advent of the Intellectual Property (IP)module technology, floorplanning and placement have become a key section in theprocess of their physical design.
随着系统芯片(SOC)设计方法和知识产权(IP)模块技术在集成电路设计中的不断发展和应用,布图规划(Floorplanning)和布局日渐成为超大规模集成(VLSI)电路与系统物理设计的关键环节。
4.Study on EMC Problems Between Signalling Track Circuit and Electrical Propulsion System
信号轨道电路与电力牵引系统间的电磁兼容研究
5.This paper introduces the hardware and software of the measuring system of the ventricular late potential. The system consists of low noise, high gain and CMRR acquiring circuit and microcomputer.
介绍了心室晚电位测量系统的硬件设计与软件设计,该系统由低噪声、高增益、高共模抑制比的检测电路与微型计算机组成。
6.Digital circuits, analog circuits, circuit, C language, HF, basic computer, communications theory, Signals and Systems, EDA, computer theory, sensor, microcontroller.
数字电路，模拟电路，电路，C语言，高频，计算机基础，通信原理，信号与系统，EDA，微机原理，传感器，单片机。
7.With the help of interconnection between Internet & PC and USB interface circuit &SCM,realize multi-target supervision and controlling in coal mine.
该系统利用因特网与计算机互联,通过USB接口电路与单片机的连接,实现了对煤矿中多个目标的监控。
8.This paper introduces a new optimized AFE(Analog Front End) circuit used in the HDSL system which has several advantages such as low power consumption,low cost,reduced size and better performance,describes the construct of this circuit and the basic components and properties of its subcircuitss,and compares the original AFE with the new AFE.
介绍了一种用于HDSL高比特数字用户环路系统的新的模拟前端电路（AFE——AnalogFrontEnd），这种电路具有低功耗，低成本，体积小，性能优良等特点，文中就电路的组成，各子电路的基本构造及性能等进行了叙述，最后给出了这种新电路与过去所用同类电路的一些性能比较结果。
9.A CDR Circuit for the Burst Mode Receiver EPON
EPON系统中突发接收的CDR电路研究与设计
10.Analysis and Design of Artificial Dead Zone Circuit for the PID Governing System of a Water Turbine
水轮机PID调速系统中的人工失灵区电路分析与设计
11.The main hardware designs include the interface between DSP and ATT7028, the interface between DSP and EDM12864P, the interface between DSP and data RAM, the communication interface of DSP, the controlling circuits etc. The software designs include the communication program, the driving program of EDM12864P, the scanning program of keyboard.
本课题还设计了系统的DSP与ATT7028接口电路、DSP与EDM12864P接口电路、DSP与数据存储器接口电路、DSP与上位机通信接口电路、电机电源的控制部分等硬件,同时设计了系统的软件如ADC通信程序、液晶显示驱动程序、键盘扫描程序、故障模型的判断程序等模块。
12.Most of the circuit structures met in calendar schematic and the fundamental idea of analysis and design of the sequential circuit are discussed in this paper and the operation principle and the design method are analyzed from two points, one is the circuit theory of all the modules, the other is how the whole system works. The paper also expounds the design method-and the design flow of the 1C by the numbers through real examples.
本文详细讨论了万年历电路分析与设计中遇到的各种电路类型和时序电路分析设计的基本思想，从万年历各子模块的电路原理和整个系统如何运作两个角度深入分析了万年历电路的工作原理和设计思路，以实例系统地阐述了集成电路的设计方法与设计流程。
13.Principle and design of mute circuit in CTV system
彩电系统中静音电路的原理与设计
14.Analysis and Design of the DVI Circuit in PDP System
PDP系统中DVI电路的分析与设计
15.This papar introduces a design and implement method system to acquire and transmit radar target return data. This system is based on a high-speed Single Chip Micyoco C8051F120 produced by Cygnal. The major characteristics of C8051F120 and how to design and implement a interface circuitry to acquire data with a high-speed is also introduced in this paper.
介绍了基于Cygnal公司的高速单片机C8051F120的雷达回波数据采集与传输系统的设计实现,简单介绍了C8051F120单片机的主要特点,高速数据采集系统接口电路的CPLD设计实现。
16.Design and optimization of CAI system for electronic circuit
电子电路CAI系统的设计与优化
17.This is to introduce the features and primary functions of real time of chip DS12887, which is designed by Dallas Company, as well as the circuit device of MCS-51 System. The system proved to be econmical in terms of power consumption.
主要介绍了DALLAS公司的实时时钟芯片DS12887的主要特性、基本功能,以及与MCS-51系统的硬件电路设计,并经试验证明,系统有较好的节能效果。
18.An FSO communication system is presented in this paper firstly, including optical antenna, transceiver module, and pointing, acquisition and tracking (PAT) subsystem.
本文首先构建了一个FSO系统总体方案,包括光学天线、收发电路和对准、捕获与跟踪(PAT)子系统。
19.This paper gives a design of control system of PMSM based on DSP TMS320LF2406A and intelligent power module PS21964 - a, includes hardware circuit design, system control strategy, software design and simulation result using Matlab.
本文提出了一套基于DSP芯片 TMS320LF2406A以及智能功率模块PS21964-a的永磁同步电机控制系统设计方案,包括系统硬件电路设计、系统控制策略与软件设计以及Matlab仿真结果。
20.The Structure and Electrocircuit Examination of TRC System for LS400
凌志LS400轿车TRC系统的结构与电路检修
21.With the continuous development and application of EDA design methodologyfor VLSI circuit and systems as well as the advent of the Intellectual Property (IP)module technology, floorplanning and placement have become a key section in theprocess of their physical design.
随着系统芯片(SOC)设计方法和知识产权(IP)模块技术在集成电路设计中的不断发展和应用,布图规划(Floorplanning)和布局日渐成为超大规模集成(VLSI)电路与系统物理设计的关键环节。
22.This paper introduces the hardware and software of the measuring system of the ventricular late potential. The system consists of low noise, high gain and CMRR acquiring circuit and microcomputer.
介绍了心室晚电位测量系统的硬件设计与软件设计,该系统由低噪声、高增益、高共模抑制比的检测电路与微型计算机组成。
23.This paper Introduces the working principles of the transceiver units in HDSL transmission devices as well as the block diagram of the system. and gives an analytical account of the constituent modules of the main circuits.
本文介绍了HDSL传输设备中收、发器单元的工作原理与系统组成框图，并就其中的主要电路组成模块进行分析与叙述。
24.This paper reveals in dynamical equations the similarity of the nonlinear ELO oirouits to the intrinsic optical bistable system (OBS) The bistability and the related transient behaviors of the RLO oirouits of ferromagnetics are studied, through the imitative permeability function which is obtained by the least-square method according to some experimental data.
从动力学方程上揭示了非线性RLC电路与本征型光学双稳系统的相似性. 通过按一定实验数据拟合的磁导率函数,研究含铁磁质的RLC电路的双稳性及有关静、动态特性.
25.The problem of switching noise is analyzed in detail and analog filter between APF and power system is designed according to the equivalent circuit of compensation part.
详细分析了所选方案存在的开关噪声成因，并且建立了补偿环节的等效电路，据此完成了有源滤波器与系统连接处的模拟滤波器的设计；
26.This article angle has analyzed the higher professional technical education from CBE/DACUM "the electrical control technology" the curriculum ability localization, according to the higher professional technical education "the electrical control technology" the curriculum ability localization, point out the insufficiency and flaw existed in commonly used control electric appliance choice, electrical pilot wire road map, electricity control system installment, wiring craft, electrical control line fault diagnosis system approach, new starting velocity modulation equipment and control circuit, control circuit and main circuit aspect and so on.
摘要本文从CBE/DACUM角度分析了高职“电气控制技术”课程的能力定位，根据高职“电气控制技术”课程的能力定位，指出了现行高职“电气控制技术”教材在常用控制电器选择、电气控制线路图、电气控制系统安装、接线工艺、电气控制线路故障诊断的系统方法、新型起动调速设备及控制电路、控制电路与主电路的连接等方面存在的不足和缺陷。
27.Emphasis has been placed on the optical receiving system, including APD receiver, receiver of the optical interface, Physical Layer protocols of fast Ethernet, fast Ethernet interface and control unit.
重点研究了大气激光通信光接收系统,包括基于雪崩光电二极管的光接收模块、光接口模块中的接收部分、快速以太网物理层协议标准、快速以太网接口电路与控制模块。
28.Two phase equivalent circuit of Scott connection transformer is put forward. The impedance transformation relations between 3 phase and 2 phase are revealed,which are identical to the results obtained from the system coordinate transformation method.
提出了Scott接线变压器的两相等效电路 ,并揭示出了与利用系统坐标变换方法一致的三相—两相阻抗变换关系。
29.This article introduces design and research of signals acquisition circuit for the portable instrument of fault diagnosis andtrend estimation of the large rotary sets, including working principle of the system, circuit design of signals conditioning 、signals ac-quisition of the vibrating and temperature and serial communication, and the development of serial communication program and signalsacquisition program.
本文介绍了针对便携式旋转机械故障诊断和趋势预测仪器的信号采集电路的设计与研究,其中包括系统的工作原理,信号调理、震动和温度信号采集和串口通信电路的设计,以及单片机串口通讯程序和信号采集程序的开发。
30.This papar introduces a design and implement method system to acquire and transmit radar target return data. This system is based on a high-speed Single Chip Micyoco C8051F120 produced by Cygnal. The major characteristics of C8051F120 and how to design and implement a interface circuitry to acquire data with a high-speed is also introduced in this paper.
介绍了基于Cygnal公司的高速单片机C8051F120的雷达回波数据采集与传输系统的设计实现,简单介绍了C8051F120单片机的主要特点,高速数据采集系统接口电路的CPLD设计实现。
31.This is to introduce the features and primary functions of real time of chip DS12887, which is designed by Dallas Company, as well as the circuit device of MCS-51 System. The system proved to be econmical in terms of power consumption.
主要介绍了DALLAS公司的实时时钟芯片DS12887的主要特性、基本功能,以及与MCS-51系统的硬件电路设计,并经试验证明,系统有较好的节能效果。
32.This paper introduces the design and realization of automatic measuring system for testing air- cannon synthetic control equipment based on PC-104 bus architecture. Hardware circuit and software de- sign are given in detail.
介绍了基于 PC-104总线架构的航炮综合控制设备自动测试系统的设计与实现,详细论述了测试系统的硬件电路和软件设计。
33.This,combined with the flexible interface and powerful communication capability of TMS320C40 ,made the system be easily configured as SIMD,MIMD parallel and pipeline structures.
电路采用可变结构帧存形式，与两片TMS320C40灵活的外部接口及强大的通信能力相结合，使系统可方便地组织成SIMD、MIMD等并行处理结构及流水处理结构；
34.This paper introduces the structure and pin function of plug-in circuits based on UDA1341 digital audio interface,presents the realizing method for this interface to connect S3C2410 hardware with UDA1341 in an embedded system,while introduces the IIS bus format and application design based on embedded system.
介绍UDA1341数字音频接口嵌入式电路结构和引脚功能,给出在嵌入式系统中采用UDA1341与S3C2410硬件接口实现方法,同时介绍基于嵌入式系统IIS总线格式及应用设计。
35.The pin description of the Real Time Clock Chip,DS12887,is given. And the structure of its internal RAM and the functions of all control registers are elaborated. As a typical application of DS12887,we introduct the design of the Real Time Clock System which mainly consists of DS12887 and 8031.
文中给出了DS12887 的引脚功能，阐述了它的内部RAM 结构及控制寄存器的功能．作为DS12887 的一个典型应用，介绍了它与8031 单片机构成的实时时钟系统电路设计
36.The paper introduces the design of the prototype SVC of type TCR+TSC, including the principle and design of its electric scheme, control system and monitoring system, The trial operation has shown the good results of the prototype design.
文中对TCR+TSC型SVC样机的设计进行了详细的介绍,分别讨论了主电路、控制系统、监测系统等部分的原理与设计。 运行试验的结果表明,样机设计效果良好。
37.This method makes both the accurate signal quantization rate and the signal data rate of the system be relatively perfect, and the results of computer digital simulation and circuit signal imitation indicate that the system possesses a fast control transition process.
该方法使系统具有较理想的准确信号量化率与信号数据率; 经计算机数字仿真及电路信号模拟表明:系统具备快速的控制过渡过程。
38.At a definite temperature a mesoscopic circuit isnt in a determinate quantum state instead of in the mixed state (or statistical state).Using the density matrix of the canonical ensemble,we have deduced the formulate of the quantum fluctuations of both charge and current in a non-dissipative mesoscopic coupled circuit.And the dependences of the quantum fluctuation of the circuit on its temperature have obtained.
在有限温度下，介观电路系统实际上并不处在一个确定的量子状态，而是处在混合态.根据正则系综的密度矩阵导出耦合互感电路中电荷和电流的量子涨落，得到了量子涨落与温度的依赖关系.
39.The work theory of 247C Four-channel Readout produced by MKS corporation is expounded in this paper,then the voltage-flow curve of the equipment is obtained through a experiment in typical work condition.
分析了MKS公司生产的气体流量控制系统247CFour-ChannelReadout的工作原理,并通过实验得出系统的工作曲线,并设计出该仪器与PC并口的接口电路。
40.A cable call interactive conversation system controlled by single chip microcomputer and used by DTMF encoding technology is introduced,and the system principle,interface of MCS-51 single chip computer with MT8880 and address identification circuit of slave-machine are discussed in this paper.
介绍一种由单片机控制、采用DTMF编码技术的有线传呼对讲系统，重点讨论系统原理、MCS－51单片机与MT8880的接口及副机地址识别电路
41.BDD( Binary Decision Diagram)is the state-of-the-art data structure in logic function. It is widely used in the fields of computer science and digital circuit and system.
二元判决图BDD(Binary Decision Diagram)是逻辑布尔函数的一种高效表示方法，在计算机科学以及数字电路与系统等领域中有广泛的应用。
42.The problem of switching noise is analyzed in detail and analog filter between APF and power system is designed according to the equivalent circuit of compensation part.
详细分析了所选方案存在的开关噪声成因，并且建立了补偿环节的等效电路，据此完成了有源滤波器与系统连接处的模拟滤波器的设计；
43.Emphasis has been placed on the optical receiving system, including APD receiver, receiver of the optical interface, Physical Layer protocols of fast Ethernet, fast Ethernet interface and control unit.
重点研究了大气激光通信光接收系统,包括基于雪崩光电二极管的光接收模块、光接口模块中的接收部分、快速以太网物理层协议标准、快速以太网接口电路与控制模块。
44.A 5V, 20MHz, 10-bits pipeline ADC converter is presented in this paper, following an analysis on various high speed ADC converters. This ADC in front stage of PAL video decoder is used for converting from analog video signal to digital video signal.
本文在分析比较了各种模数转换器(ADC)的结构特点后,并通过在MATLAB下进行的流水线ADC 的系统级仿真分析后,采用流水线结构完成了一个10 位20 兆赫兹采样频率的模数转换器的电路与版图设计,此电路是电视视频解码处理芯片的前级处理部分,完成模拟电视信号的采样功能。
45.Two phase equivalent circuit of Scott connection transformer is put forward. The impedance transformation relations between 3 phase and 2 phase are revealed,which are identical to the results obtained from the system coordinate transformation method.
提出了Scott接线变压器的两相等效电路 ,并揭示出了与利用系统坐标变换方法一致的三相—两相阻抗变换关系。
46.This article introduces design and research of signals acquisition circuit for the portable instrument of fault diagnosis andtrend estimation of the large rotary sets, including working principle of the system, circuit design of signals conditioning 、signals ac-quisition of the vibrating and temperature and serial communication, and the development of serial communication program and signalsacquisition program.
本文介绍了针对便携式旋转机械故障诊断和趋势预测仪器的信号采集电路的设计与研究,其中包括系统的工作原理,信号调理、震动和温度信号采集和串口通信电路的设计,以及单片机串口通讯程序和信号采集程序的开发。
47.This paper assumes a development project about the application platform of embedded GUI based on ARM MPU and embedded RTOS(Real-time Operation System). The design and debugging of the Hardware circuit based on ARM MPUhas been completed, and the design and application of Software platform has been implemented, including the program of Boot Loader, the portability of uC/OS-II, the program of UART communication, the application of uC/GUI and so on.
本文研究设计了一种基于ARM微处理器和嵌入式实时操作系统的嵌入式GUI应用平台的方案,完成了系统硬件电路的设计与调试,实现了包括:系统启动加载程序Boot Loader、uC/OS-Ⅱ操作系统的移植、串口通信程序、uC/GUI图形软件应用等系统软件平台的设计与应用。
48.A novel coal gangues on-line recognition and automation selection system based on the ARM (advanced RISC machines) microprocessor and CAN(controller area network) bus is introduced in order to explore a new way for the coal dry selection technique. The design idea of the interface circuits between the ARM microprocessor and the CAN controller is discussed, and the flow chart of the communication between AT91M40800 and SJA1000 is given.
简要介绍了ARM(Advanced RISC Machines)微控制器和CAN(Controller Area Network)总线技术构成的煤矸石在线识别与自动分选系统,给出了ARM微控制器AT91M40800与CAN总线控制器SJA1000之间相连的硬件电路,论述了硬件接口之间的数据通信实现技术,给出了数据通信的软件设计流程。
49.Abstract: The supplemental restraint system on BENZ car is composed of safety air bag system and safety belt retractor system.This paper introduces the structure characteristics，working principle and control circuit and expounds the fault code reading and delating methods.
文摘:奔驰轿车装备的辅助防护系统由安全气囊系统和座椅安全带收紧系统2部分组成，介绍了其结构特点、工作原理及控制电路，阐述了读取与清除故障代码的诊断测试方法。
50.What is more,because this system shares the same set of computer hardware and actuating mechanism with the system of automatic arc length control,nearly no more cost will be increased.
该系统具有控制精度高 ,可以很好地解决接触引弧过程中出现的夹钨等缺陷问题 ,更为优越的是该系统与弧长自动控制系统共用一套计算机硬件电路和执行机构 ,仅增加部分程序 ,几乎不增加成本
51.This,combined with the flexible interface and powerful communication capability of TMS320C40 ,made the system be easily configured as SIMD,MIMD parallel and pipeline structures.
电路采用可变结构帧存形式，与两片TMS320C40灵活的外部接口及强大的通信能力相结合，使系统可方便地组织成SIMD、MIMD等并行处理结构及流水处理结构；
52.The pin description of the Real Time Clock Chip,DS12887,is given. And the structure of its internal RAM and the functions of all control registers are elaborated. As a typical application of DS12887,we introduct the design of the Real Time Clock System which mainly consists of DS12887 and 8031.
文中给出了DS12887 的引脚功能，阐述了它的内部RAM 结构及控制寄存器的功能．作为DS12887 的一个典型应用，介绍了它与8031 单片机构成的实时时钟系统电路设计
53.Additionally, a 4~ 20mA current output channel to provide system check-up using AD421. In the system, AD421, AD7705 and the microchip compose SPI bus;
另外，针对研制任务的要求，还给系统加上了一路4～20mA模拟信号电流环的输出电路来提供系统监测，该部分的实现是通过采用AD421芯片来完成的，本设计中完成了AD421与单片机的SPI接口任务，协调了它与AD7705芯片和单片机共同构成的SPI总线系统的关系，并完成了程序设计；
54.This paper introduces the features and the operating principle of Σ - △ ADC AD7731, and provide a sample,which include an interface circuit and program design between SIMATIC S7-200 PLC and AD7731 in improving of RUSKA PVT 2370.
介绍了∑-△模数转换器AD7731的主要特点和工作原理,并给出在RUSKAPVT2370仪器改造中,AD7731与SIMATICS7-200系列PLC组成的数据采集系统的接口电路和软件设计。
55.(3) A series of interface electric circuits of the communication system were completed. The communication programs between the microcomputer and a PC computer are worked out.
(3)完成了通信系统的硬件电路设计，编制了单片机和PC机的通信程序，实现了单片机与PC机之间的串行通信。
56.At a definite temperature a mesoscopic circuit isnt in a determinate quantum state instead of in the mixed state (or statistical state).Using the density matrix of the canonical ensemble,we have deduced the formulate of the quantum fluctuations of both charge and current in a non-dissipative mesoscopic coupled circuit.And the dependences of the quantum fluctuation of the circuit on its temperature have obtained.
在有限温度下，介观电路系统实际上并不处在一个确定的量子状态，而是处在混合态.根据正则系综的密度矩阵导出耦合互感电路中电荷和电流的量子涨落，得到了量子涨落与温度的依赖关系.
57.The program design procedure of the multiwave electroplate controller is introduced in this paper, including the function description, hardware construction, circuit design, software flowchart, software design methods, and subroutines of conversion between multibyte binary number and BCD code.
系统介绍了一种多波形电镀电源控制器的设计过程 ,包括功能描述、硬件框图、具体实现电路、软件流程图、软件设计方法和部分多字节二进制与BCD码转换子程序
58.The results show that this attenuator,which is 12 mm×8 mm×0.5 mm and works at low temperature,can be used alone or integrated into HTS system to decrease system volume and weight.
主要结论如下:光控高温超导微波可变衰减器在液氮温区工作,电路尺寸为12 mm×8 mm×0.5 mm,可单独使用也可集成于高温超导系统中,可大幅减小系统的体积与质量;
59.Meanwhile,it produces the example that the TMS320F2812 DSP integrated with IN-AMP through using CPLD and 16bit ADC successfully by hardware based on my work.
同时,结合作者实际工作的一个成功应用TMS320F2812 DSP与仪表放大器以及同步采样16 b ADC通过CPLD硬件接口的实例。 通过验证此电路系统有非常好的性能和可扩展性。
60.Compared with conventional track circuit, the advantages of Siemens AzS (M) 350 M microcomputer controlled axle counting equipment system in detecting the section occupying or free are summarized. And its system configuration, working principle and application are also introduced.
介绍西门子AzS(M)3S0 M型微机计轴设备与传统的轨道电路相比在完成铁路区段空闲、占用检查功能方面的优势和这种系统的构成、工作原理及具体运用。
61.Electric Circuit and Comprehensive Experiment course, including the usage of general instrument,mixer,RF power amplifier,analog AM and FM communication system experiments,is one of the important basic practice tache for electronics,information and communication technology major students.
“电子电路与综合实验”课程是电子、信息、通信类等专业学生重要的基础实践环节之一,主要内容包括混频器、射频功率放大器、模拟调幅调频通信收发系统实验及常用仪器的使用。
62.The system adopted the project of wireless communication between two host, used point to point Bluetooth module ROK101008. One host was PC that was connected with ROK101008 by interface circuit, and its software was programmed with VC++6.0, the host exchanged digital with ROK101008 by serial communication interface.
本系统采用上下位机无线通信的方案设计,利用点到点无线通信的蓝牙模块ROK101008,上位机主机采用PC机通过接口电路与蓝牙模块ROK101008相连,PC机软件采用VC++6.0编程,通过串口对蓝牙模块ROK101008进行通信控制;
63.A 5V, 20MHz, 10-bits pipeline ADC converter is presented in this paper, following an analysis on various high speed ADC converters. This ADC in front stage of PAL video decoder is used for converting from analog video signal to digital video signal.
本文在分析比较了各种模数转换器(ADC)的结构特点后,并通过在MATLAB下进行的流水线ADC 的系统级仿真分析后,采用流水线结构完成了一个10 位20 兆赫兹采样频率的模数转换器的电路与版图设计,此电路是电视视频解码处理芯片的前级处理部分,完成模拟电视信号的采样功能。
64.New integrated controller for EPS and HASS (half active suspend system) was designed for test. Control circuit diagram and ECU (electrical control unit) were developed based MCS-51. After bench test, a road test was carried out in CH6353 with EPS and, the tests results demonstrate the effectiveness of proposed control methods for test.
研究开发了基于MCS-51单片机的控制电路和ECU,以及EPS与整车系统的PC机信号采集系统,对EPS系统进行台架试验,在改装后的装有EPS和有级可调阻尼器的昌河CH6353微型面包车上进行了道路试验。 试验结果表明,对电动助力转向和半主动进行集成控制是可行有效的。
65.This paper assumes a development project about the application platform of embedded GUI based on ARM MPU and embedded RTOS(Real-time Operation System). The design and debugging of the Hardware circuit based on ARM MPUhas been completed, and the design and application of Software platform has been implemented, including the program of Boot Loader, the portability of uC/OS-II, the program of UART communication, the application of uC/GUI and so on.
本文研究设计了一种基于ARM微处理器和嵌入式实时操作系统的嵌入式GUI应用平台的方案,完成了系统硬件电路的设计与调试,实现了包括:系统启动加载程序Boot Loader、uC/OS-Ⅱ操作系统的移植、串口通信程序、uC/GUI图形软件应用等系统软件平台的设计与应用。
66.ICL(7106)3_(1/2) bit A/D convertor through the encoder convert the sectional code into BCD code. The BCD output is interfaced with the microcomputer system,when through se- veral aualog channel qnantity is collected we can use the multiplexor. Our experiment has proved that the system has simple circuit with reliabe operation and it is cheap.
本文介绍了 ICL(7107)3_(1/2)位 A/D 转换器段码输出与微机系统的接口电路,ICL(7106)3_(1/2)位 A/D 转换器经编码器,将段码转换为 BCD 码输出与微机系统收接,当对多个模拟量进行检测时可应用多路开关,实验证明联接线路简单,运行可靠,装置便宜。
67.After carrying out great deal of related researches on this subject home and abroad, we developed "High-speed Acquisition and Processing System of Switching Apparatus Experimental Parameters" , which can acquire and process many important parameters such as circuit power factor, power frequency, joule integral(I t), arching time and the voltage between two contacts, etc.
在分析国内外研究现状后,我们研制了“开关电器试验参数高速采集与处理系统”,完成对电路功率因数、电源频率、焦耳积分(I~2t)、燃弧时间以及触头两端电压等主要参数的高速采集和处理。
68.A novel coal gangues on-line recognition and automation selection system based on the ARM (advanced RISC machines) microprocessor and CAN(controller area network) bus is introduced in order to explore a new way for the coal dry selection technique. The design idea of the interface circuits between the ARM microprocessor and the CAN controller is discussed, and the flow chart of the communication between AT91M40800 and SJA1000 is given.
简要介绍了ARM(Advanced RISC Machines)微控制器和CAN(Controller Area Network)总线技术构成的煤矸石在线识别与自动分选系统,给出了ARM微控制器AT91M40800与CAN总线控制器SJA1000之间相连的硬件电路,论述了硬件接口之间的数据通信实现技术,给出了数据通信的软件设计流程。
69.Abstract: The supplemental restraint system on BENZ car is composed of safety air bag system and safety belt retractor system.This paper introduces the structure characteristics，working principle and control circuit and expounds the fault code reading and delating methods.
文摘:奔驰轿车装备的辅助防护系统由安全气囊系统和座椅安全带收紧系统2部分组成，介绍了其结构特点、工作原理及控制电路，阐述了读取与清除故障代码的诊断测试方法。
70.What is more,because this system shares the same set of computer hardware and actuating mechanism with the system of automatic arc length control,nearly no more cost will be increased.
该系统具有控制精度高 ,可以很好地解决接触引弧过程中出现的夹钨等缺陷问题 ,更为优越的是该系统与弧长自动控制系统共用一套计算机硬件电路和执行机构 ,仅增加部分程序 ,几乎不增加成本
71.The text probes into the serial communication of C8051F020 and constructs the application of serial communication of the UART0 of C8051F020. The text puts forward the serial communication system of SCM to PC, and constructs its hardware circuit and communication program.
探讨了C8051F020单片机的串行口通信技术,并在此基础上构造了基于C8051F020单片机的UART0口的串行通信技术。 提出了与单片机串行通信系统结构,完成了其串行通信的硬件电路设计及其软件通信程序的设计。
72.Additionally, a 4~ 20mA current output channel to provide system check-up using AD421. In the system, AD421, AD7705 and the microchip compose SPI bus;
另外，针对研制任务的要求，还给系统加上了一路4～20mA模拟信号电流环的输出电路来提供系统监测，该部分的实现是通过采用AD421芯片来完成的，本设计中完成了AD421与单片机的SPI接口任务，协调了它与AD7705芯片和单片机共同构成的SPI总线系统的关系，并完成了程序设计；
73.Compared with the SCP(Single Chip Processor) with less than 100MHz Clock Rate, the High-Performance Fixed-Point DSP(TMS320C6205) has 200MHz Clock Rate. The use of the FPGA can not only make it easy to debug the system, but also cut down the expense and volume of the system, so that the DSO will become portable. In the project, the system integrates a DSP and its external peripherals, a data acquisition system and a FPGA.
由于DSP 采用TMS320C6205 通用32 位定点DSP 处理器,其最高工作频率可达200MHz,与主频在100MHz 以下的单片机相比,系统的时钟速度及数据处理能力提高极大,而FPGA 的应用不仅使系统便于调试,而且大大降低了系统的成本、外围电路的复杂程度以及设备的体积,有利于制作便携式示波器。
74.Measurement is made, by using partially depleted gold silicon surface barrier detectors, on the α particles in the radon chamber. Issues like what kind of subsequent electric circuit should be adopted to produce effectively the spectrum measure data and the gross measure data, and how to conduct the measure of the radon chamber temperature and humidity in a convenient and accurate way, are one of the important aspects of investigation of radon chamber dada acquisition systems.
在氡室中,通过金硅面垒半体探测器对α粒子的测量,采用怎样的后续电路结构才能有效的获取谱测量数据与总量测量数据,以及对氡室环境的温、湿度如何能简捷、准确测量是氡室数据采集系统的重要研究课题之一。
75.This paper introduces the features and the operating principle of Σ - △ ADC AD7731, and provide a sample,which include an interface circuit and program design between SIMATIC S7-200 PLC and AD7731 in improving of RUSKA PVT 2370.
介绍了∑-△模数转换器AD7731的主要特点和工作原理,并给出在RUSKAPVT2370仪器改造中,AD7731与SIMATICS7-200系列PLC组成的数据采集系统的接口电路和软件设计。
76.Circuit Theory, Fundamentals of Electronics Technology, Principle &Application of Microcomputer, Automatic Control Principles, Theory of Error and Data Disposal, Digital Signal Processing, Process Measurement and Instrumentation, Theory &Application of Sensor, Intelligent Mechanic Design, Metrology and Measurement technology, Process Control and Automated Instrument, etc.
电路理论、电子技术基础、微机原理及应用、自动控制理论A、误差理论与数据处理、数字信号处理（自）、过程参数检测及仪表、传感器原理及应用、智能仪表设计、计量测试技术、过程控制系统等。
77.The model of harmonic source in marine electric network is researching object in this dissertation. Through analyzing the harmonics, a mixed harmonic suppression system composed of a mixed Series APF and an APFCC is designed. Then the system is simulated in the Matlab/Simulink software and the Etap software.
本文以船舶电网谐波源模型为研究对象，进行谐波分析，设计了一个由串联混合型有源滤波器(APF)与有源功率因数校正电路(APFCC)混合使用的谐波抑制系统，并对其用Matlab／Simulink软件和电力系统分析计算应用软件Etap进行仿真研究。
78.An intelligent fuzzy measurement and control system based on PA bus interface for temperature in rotary kiln is designed by using dual single chip computer AT89S52 and AT90S8515.The hardware circuits of Profibus-PA bus communication interface and temperature measurement interface of rotary kiln are designed by using ASIC chips SPC4,SIM1.The program flowchart of bus communication interface is provided.
采用双单片机AT89S52与AT90S8515设计了基于PA总线接口的回转窑温度智能模糊测控系统。 利用ASIC芯片SPC4、SIM1设计了Profibus-PA总线通信接口和回转窑温度检测接口硬件电路,给出了总线通信接口程序流程图。
79.The results show that this attenuator,which is 12 mm×8 mm×0.5 mm and works at low temperature,can be used alone or integrated into HTS system to decrease system volume and weight.
主要结论如下:光控高温超导微波可变衰减器在液氮温区工作,电路尺寸为12 mm×8 mm×0.5 mm,可单独使用也可集成于高温超导系统中,可大幅减小系统的体积与质量;
80.R8830, a 16-bit MCU is used as the only one processor in this design. I select SST28SF040, a EEPROM with the function of data protection to storage my software. K9F2808, a Nand_Flash memory with the bad block mapped function is used as a fiscal and invoice memory.
硬件电路设计中选用16位MCU—R8830作为系统唯一的中央处理器,程序存储器选用具有数据写保护功能的SST28SF040,税控和发票存储器选用具有坏块映射功能的与非存储器K9F2808。
81.After carrying out great deal of related researches on this subject home and abroad, we developed "High-speed Acquisition and Processing System of Switching Apparatus Experimental Parameters" , which can acquire and process many important parameters such as circuit power factor, power frequency, joule integral(I t), arching time and the voltage between two contacts, etc.
在分析国内外研究现状后,我们研制了“开关电器试验参数高速采集与处理系统”,完成对电路功率因数、电源频率、焦耳积分(I~2t)、燃弧时间以及触头两端电压等主要参数的高速采集和处理。
82.This paper introduces the system of target simulation and jamming based on DRFM. We simulate target range by controlling delay time of pulse,and velocity by controlling frequency of DDS. This paper also presents the design method of realizing multiple targets in one channel and the solution to the synchronization problem of different channels.
介绍了基于DRFM(数字射频存储器)的雷达目标模拟与欺骗干扰系统中,通过控制DRFM的读出时间,以模拟运动目标距离控制DDS(直接数字频率合成器)的频率控制多普勒频移,以模拟运动目标的速度,给出了单通道模拟多个目标和产生欺骗干扰时控制电路的实现方法,解决了多通道模拟目标及欺骗干扰时通道间同步问题。
83.Fuzzy control does not need precision mathematic model to conquer the shortcoming in routine digital DC Speed Regulation. We can combine with the PID adjuster and fuzzy control, focusing on theory research and realization of fuzzy-PID compound control scheme, design relevant DC Speed Regulation System was designed in the dissertation.
模糊控制不要求被控对象的精确模型且适应性强,为了克服常规数字直流调速装置的缺点,本文将模糊控制与PID调节器结合,着手fuzzy-PID复合控制方案理论研究和硬件的实现,设计出相关控制方案的直流调速系统,该方案以AT89S51单片机为主控单元,高精度位置控制LM629为电机控制芯片与一些外围电路构成硬件系统; 以参数模糊自整定PID为控制策略。
84.Measurement is made, by using partially depleted gold silicon surface barrier detectors, on the α particles in the radon chamber. Issues like what kind of subsequent electric circuit should be adopted to produce effectively the spectrum measure data and the gross measure data, and how to conduct the measure of the radon chamber temperature and humidity in a convenient and accurate way, are one of the important aspects of investigation of radon chamber dada acquisition systems.
在氡室中,通过金硅面垒半体探测器对α粒子的测量,采用怎样的后续电路结构才能有效的获取谱测量数据与总量测量数据,以及对氡室环境的温、湿度如何能简捷、准确测量是氡室数据采集系统的重要研究课题之一。
85.Circuit Theory, Fundamentals of Electronics Technology, Principle &Application of Microcomputer, Automatic Control Principles, Theory of Error and Data Disposal, Digital Signal Processing, Process Measurement and Instrumentation, Theory &Application of Sensor, Intelligent Mechanic Design, Metrology and Measurement technology, Process Control and Automated Instrument, etc.
电路理论、电子技术基础、微机原理及应用、自动控制理论A、误差理论与数据处理、数字信号处理（自）、过程参数检测及仪表、传感器原理及应用、智能仪表设计、计量测试技术、过程控制系统等。
86.An intelligent fuzzy measurement and control system based on PA bus interface for temperature in rotary kiln is designed by using dual single chip computer AT89S52 and AT90S8515.The hardware circuits of Profibus-PA bus communication interface and temperature measurement interface of rotary kiln are designed by using ASIC chips SPC4,SIM1.The program flowchart of bus communication interface is provided.
采用双单片机AT89S52与AT90S8515设计了基于PA总线接口的回转窑温度智能模糊测控系统。 利用ASIC芯片SPC4、SIM1设计了Profibus-PA总线通信接口和回转窑温度检测接口硬件电路,给出了总线通信接口程序流程图。
87.R8830, a 16-bit MCU is used as the only one processor in this design. I select SST28SF040, a EEPROM with the function of data protection to storage my software. K9F2808, a Nand_Flash memory with the bad block mapped function is used as a fiscal and invoice memory.
硬件电路设计中选用16位MCU—R8830作为系统唯一的中央处理器,程序存储器选用具有数据写保护功能的SST28SF040,税控和发票存储器选用具有坏块映射功能的与非存储器K9F2808。
88.Energy absorber is the key component in HVDC circuitbreaker. After interrupting, the remaining energy in the HVDC system should be dissipated by absorber. The energy is dependent on the transmission line parameters, grounding location and the interrupting current.
高压直流断路器开断直流电路后,系统电感中的一部分能量必须消耗在能量吸收装置中,这部分能量与直流输电线路的参数、故障点的位置以及开断电流的大小有关,本文利用电磁暂态过程计算程序对此进行了计算。
89.A close-loop power circuit with feedback switch power chip LM2587 and DAC chip TLV5618A is introduced. With this circuit,it can provide 8～36 V output,and its precision is 0.1 V.This circuit is used in automobile assembled meter debug system.
介绍了一种基于反馈式开关电源芯片LM2587与DAC芯片TLV5618A构成的闭环电源电路,可实现8~36 V的开关电源输出,精度可达0.1 V,已经应用到汽车组合仪表调试系统中。
90.Then, the author specially studies the characteristic of system architecture of the DSP, paints schematic principle diagram and PCB diagram of the hardware circuit system, writes the program decoding and partial data processing of the CPLD, adopting Verilog HDL hardware describing language.
然后，研究了DSP芯片结构体系的特点，绘制了硬件电路系统的原理图和PCB图，且采用Verilog HDL硬件描述语言编写了复杂可编程逻辑器件(CPLD)的译码与部分数据处理程序。
91.This paper elaborates the automatic measuring system, with the reduced design of hardware and software, which can realize such functions as collecting the axial run-out of saw-blade, asynchronous communicating between the measuring system and a PC, processing data, displaying and printing the axial run-out and distortion on screen.
该系统采用精简的硬件电路设计和面向实时检测的软件设计，可实现锯片轴向变形数据的实时采集并及时上传检测数据，PC机可对接收的变形数据进行处理，实现变形数据与变形圆的屏幕显示和打印等功能。
92.The paper first introduces composing of the equipment and working principle, then makes simple compare for distinctness between digital signal processor (DSP), embedded system and single-chip microcomputer, finally introduces in detail main technical problems that need resolved in design, which including automatic dial-up calling, building of voice channels, on/off- hook control, communication, reliability and anti-interference, design of hardware circuit (attaching with schematic circuits), etc.
本论文主要有几个部分组成，首先介绍设备的构成及工作原理，其次对数字信号处理器(DSP)、嵌入式系统以及它们与单片微型计算机的不同之处作简单比较，最后详细介绍在设计时要解决的几个主要技术问题：自动拨号呼叫、语音通路的建立、摘挂机控制、通信、可靠性及抗干扰、硬件电路等设计(附原理图)。
93.This paper addresses high speed communication solution between 16 bit microcontroller?based data acquisition system and PC/AT compatible computer. After 16 bit Industry Standard Architecture (ISA) peripheral interface of PC is analysed, a 16 bit parallel communication card is developed with three kinds of optional modes: poll, interrupt and DMA.
为了解决单片机数据采集系统与PC机之间大数据量交换时的低速问题，剖析了目前广为流行的PC／AT兼容机ISA通道的16位I／O接口原理，并通过细致的电路设计，开发了一种通用性很强的高速16位并行通讯插卡，且使用了3种可选的通讯方式，即查询、中断和DMA。
本文给出了电路与系统设计中V—F—BCD变换方法的若干实例。
2.In order to satisfy the requirements of teaching reform and course construction, "Analog Circui" and "Digital Circuit & System" courseware are made using the PowerPoint software, and have been applied for practical classroom teaching combining the simulation of circuits using EDA software.
根据教学改革和课程建设的要求 ,用 Power Point制作“模拟电子电路”和“数字电路与系统”多媒体教学课件 ,结合 EDA软件仿真 ,用于“电子电路”课程教学。
3.With the continuous development and application of EDA design methodologyfor VLSI circuit and systems as well as the advent of the Intellectual Property (IP)module technology, floorplanning and placement have become a key section in theprocess of their physical design.
随着系统芯片(SOC)设计方法和知识产权(IP)模块技术在集成电路设计中的不断发展和应用,布图规划(Floorplanning)和布局日渐成为超大规模集成(VLSI)电路与系统物理设计的关键环节。
4.Study on EMC Problems Between Signalling Track Circuit and Electrical Propulsion System
信号轨道电路与电力牵引系统间的电磁兼容研究
5.This paper introduces the hardware and software of the measuring system of the ventricular late potential. The system consists of low noise, high gain and CMRR acquiring circuit and microcomputer.
介绍了心室晚电位测量系统的硬件设计与软件设计,该系统由低噪声、高增益、高共模抑制比的检测电路与微型计算机组成。
6.Digital circuits, analog circuits, circuit, C language, HF, basic computer, communications theory, Signals and Systems, EDA, computer theory, sensor, microcontroller.
数字电路，模拟电路，电路，C语言，高频，计算机基础，通信原理，信号与系统，EDA，微机原理，传感器，单片机。
7.With the help of interconnection between Internet & PC and USB interface circuit &SCM,realize multi-target supervision and controlling in coal mine.
该系统利用因特网与计算机互联,通过USB接口电路与单片机的连接,实现了对煤矿中多个目标的监控。
8.This paper introduces a new optimized AFE(Analog Front End) circuit used in the HDSL system which has several advantages such as low power consumption,low cost,reduced size and better performance,describes the construct of this circuit and the basic components and properties of its subcircuitss,and compares the original AFE with the new AFE.
介绍了一种用于HDSL高比特数字用户环路系统的新的模拟前端电路（AFE——AnalogFrontEnd），这种电路具有低功耗，低成本，体积小，性能优良等特点，文中就电路的组成，各子电路的基本构造及性能等进行了叙述，最后给出了这种新电路与过去所用同类电路的一些性能比较结果。
9.A CDR Circuit for the Burst Mode Receiver EPON
EPON系统中突发接收的CDR电路研究与设计
10.Analysis and Design of Artificial Dead Zone Circuit for the PID Governing System of a Water Turbine
水轮机PID调速系统中的人工失灵区电路分析与设计
11.The main hardware designs include the interface between DSP and ATT7028, the interface between DSP and EDM12864P, the interface between DSP and data RAM, the communication interface of DSP, the controlling circuits etc. The software designs include the communication program, the driving program of EDM12864P, the scanning program of keyboard.
本课题还设计了系统的DSP与ATT7028接口电路、DSP与EDM12864P接口电路、DSP与数据存储器接口电路、DSP与上位机通信接口电路、电机电源的控制部分等硬件,同时设计了系统的软件如ADC通信程序、液晶显示驱动程序、键盘扫描程序、故障模型的判断程序等模块。
12.Most of the circuit structures met in calendar schematic and the fundamental idea of analysis and design of the sequential circuit are discussed in this paper and the operation principle and the design method are analyzed from two points, one is the circuit theory of all the modules, the other is how the whole system works. The paper also expounds the design method-and the design flow of the 1C by the numbers through real examples.
本文详细讨论了万年历电路分析与设计中遇到的各种电路类型和时序电路分析设计的基本思想，从万年历各子模块的电路原理和整个系统如何运作两个角度深入分析了万年历电路的工作原理和设计思路，以实例系统地阐述了集成电路的设计方法与设计流程。
13.Principle and design of mute circuit in CTV system
彩电系统中静音电路的原理与设计
14.Analysis and Design of the DVI Circuit in PDP System
PDP系统中DVI电路的分析与设计
15.This papar introduces a design and implement method system to acquire and transmit radar target return data. This system is based on a high-speed Single Chip Micyoco C8051F120 produced by Cygnal. The major characteristics of C8051F120 and how to design and implement a interface circuitry to acquire data with a high-speed is also introduced in this paper.
介绍了基于Cygnal公司的高速单片机C8051F120的雷达回波数据采集与传输系统的设计实现,简单介绍了C8051F120单片机的主要特点,高速数据采集系统接口电路的CPLD设计实现。
16.Design and optimization of CAI system for electronic circuit
电子电路CAI系统的设计与优化
17.This is to introduce the features and primary functions of real time of chip DS12887, which is designed by Dallas Company, as well as the circuit device of MCS-51 System. The system proved to be econmical in terms of power consumption.
主要介绍了DALLAS公司的实时时钟芯片DS12887的主要特性、基本功能,以及与MCS-51系统的硬件电路设计,并经试验证明,系统有较好的节能效果。
18.An FSO communication system is presented in this paper firstly, including optical antenna, transceiver module, and pointing, acquisition and tracking (PAT) subsystem.
本文首先构建了一个FSO系统总体方案,包括光学天线、收发电路和对准、捕获与跟踪(PAT)子系统。
19.This paper gives a design of control system of PMSM based on DSP TMS320LF2406A and intelligent power module PS21964 - a, includes hardware circuit design, system control strategy, software design and simulation result using Matlab.
本文提出了一套基于DSP芯片 TMS320LF2406A以及智能功率模块PS21964-a的永磁同步电机控制系统设计方案,包括系统硬件电路设计、系统控制策略与软件设计以及Matlab仿真结果。
20.The Structure and Electrocircuit Examination of TRC System for LS400
凌志LS400轿车TRC系统的结构与电路检修
21.With the continuous development and application of EDA design methodologyfor VLSI circuit and systems as well as the advent of the Intellectual Property (IP)module technology, floorplanning and placement have become a key section in theprocess of their physical design.
随着系统芯片(SOC)设计方法和知识产权(IP)模块技术在集成电路设计中的不断发展和应用,布图规划(Floorplanning)和布局日渐成为超大规模集成(VLSI)电路与系统物理设计的关键环节。
22.This paper introduces the hardware and software of the measuring system of the ventricular late potential. The system consists of low noise, high gain and CMRR acquiring circuit and microcomputer.
介绍了心室晚电位测量系统的硬件设计与软件设计,该系统由低噪声、高增益、高共模抑制比的检测电路与微型计算机组成。
23.This paper Introduces the working principles of the transceiver units in HDSL transmission devices as well as the block diagram of the system. and gives an analytical account of the constituent modules of the main circuits.
本文介绍了HDSL传输设备中收、发器单元的工作原理与系统组成框图，并就其中的主要电路组成模块进行分析与叙述。
24.This paper reveals in dynamical equations the similarity of the nonlinear ELO oirouits to the intrinsic optical bistable system (OBS) The bistability and the related transient behaviors of the RLO oirouits of ferromagnetics are studied, through the imitative permeability function which is obtained by the least-square method according to some experimental data.
从动力学方程上揭示了非线性RLC电路与本征型光学双稳系统的相似性. 通过按一定实验数据拟合的磁导率函数,研究含铁磁质的RLC电路的双稳性及有关静、动态特性.
25.The problem of switching noise is analyzed in detail and analog filter between APF and power system is designed according to the equivalent circuit of compensation part.
详细分析了所选方案存在的开关噪声成因，并且建立了补偿环节的等效电路，据此完成了有源滤波器与系统连接处的模拟滤波器的设计；
26.This article angle has analyzed the higher professional technical education from CBE/DACUM "the electrical control technology" the curriculum ability localization, according to the higher professional technical education "the electrical control technology" the curriculum ability localization, point out the insufficiency and flaw existed in commonly used control electric appliance choice, electrical pilot wire road map, electricity control system installment, wiring craft, electrical control line fault diagnosis system approach, new starting velocity modulation equipment and control circuit, control circuit and main circuit aspect and so on.
摘要本文从CBE/DACUM角度分析了高职“电气控制技术”课程的能力定位，根据高职“电气控制技术”课程的能力定位，指出了现行高职“电气控制技术”教材在常用控制电器选择、电气控制线路图、电气控制系统安装、接线工艺、电气控制线路故障诊断的系统方法、新型起动调速设备及控制电路、控制电路与主电路的连接等方面存在的不足和缺陷。
27.Emphasis has been placed on the optical receiving system, including APD receiver, receiver of the optical interface, Physical Layer protocols of fast Ethernet, fast Ethernet interface and control unit.
重点研究了大气激光通信光接收系统,包括基于雪崩光电二极管的光接收模块、光接口模块中的接收部分、快速以太网物理层协议标准、快速以太网接口电路与控制模块。
28.Two phase equivalent circuit of Scott connection transformer is put forward. The impedance transformation relations between 3 phase and 2 phase are revealed,which are identical to the results obtained from the system coordinate transformation method.
提出了Scott接线变压器的两相等效电路 ,并揭示出了与利用系统坐标变换方法一致的三相—两相阻抗变换关系。
29.This article introduces design and research of signals acquisition circuit for the portable instrument of fault diagnosis andtrend estimation of the large rotary sets, including working principle of the system, circuit design of signals conditioning 、signals ac-quisition of the vibrating and temperature and serial communication, and the development of serial communication program and signalsacquisition program.
本文介绍了针对便携式旋转机械故障诊断和趋势预测仪器的信号采集电路的设计与研究,其中包括系统的工作原理,信号调理、震动和温度信号采集和串口通信电路的设计,以及单片机串口通讯程序和信号采集程序的开发。
30.This papar introduces a design and implement method system to acquire and transmit radar target return data. This system is based on a high-speed Single Chip Micyoco C8051F120 produced by Cygnal. The major characteristics of C8051F120 and how to design and implement a interface circuitry to acquire data with a high-speed is also introduced in this paper.
介绍了基于Cygnal公司的高速单片机C8051F120的雷达回波数据采集与传输系统的设计实现,简单介绍了C8051F120单片机的主要特点,高速数据采集系统接口电路的CPLD设计实现。
31.This is to introduce the features and primary functions of real time of chip DS12887, which is designed by Dallas Company, as well as the circuit device of MCS-51 System. The system proved to be econmical in terms of power consumption.
主要介绍了DALLAS公司的实时时钟芯片DS12887的主要特性、基本功能,以及与MCS-51系统的硬件电路设计,并经试验证明,系统有较好的节能效果。
32.This paper introduces the design and realization of automatic measuring system for testing air- cannon synthetic control equipment based on PC-104 bus architecture. Hardware circuit and software de- sign are given in detail.
介绍了基于 PC-104总线架构的航炮综合控制设备自动测试系统的设计与实现,详细论述了测试系统的硬件电路和软件设计。
33.This,combined with the flexible interface and powerful communication capability of TMS320C40 ,made the system be easily configured as SIMD,MIMD parallel and pipeline structures.
电路采用可变结构帧存形式，与两片TMS320C40灵活的外部接口及强大的通信能力相结合，使系统可方便地组织成SIMD、MIMD等并行处理结构及流水处理结构；
34.This paper introduces the structure and pin function of plug-in circuits based on UDA1341 digital audio interface,presents the realizing method for this interface to connect S3C2410 hardware with UDA1341 in an embedded system,while introduces the IIS bus format and application design based on embedded system.
介绍UDA1341数字音频接口嵌入式电路结构和引脚功能,给出在嵌入式系统中采用UDA1341与S3C2410硬件接口实现方法,同时介绍基于嵌入式系统IIS总线格式及应用设计。
35.The pin description of the Real Time Clock Chip,DS12887,is given. And the structure of its internal RAM and the functions of all control registers are elaborated. As a typical application of DS12887,we introduct the design of the Real Time Clock System which mainly consists of DS12887 and 8031.
文中给出了DS12887 的引脚功能，阐述了它的内部RAM 结构及控制寄存器的功能．作为DS12887 的一个典型应用，介绍了它与8031 单片机构成的实时时钟系统电路设计
36.The paper introduces the design of the prototype SVC of type TCR+TSC, including the principle and design of its electric scheme, control system and monitoring system, The trial operation has shown the good results of the prototype design.
文中对TCR+TSC型SVC样机的设计进行了详细的介绍,分别讨论了主电路、控制系统、监测系统等部分的原理与设计。 运行试验的结果表明,样机设计效果良好。
37.This method makes both the accurate signal quantization rate and the signal data rate of the system be relatively perfect, and the results of computer digital simulation and circuit signal imitation indicate that the system possesses a fast control transition process.
该方法使系统具有较理想的准确信号量化率与信号数据率; 经计算机数字仿真及电路信号模拟表明:系统具备快速的控制过渡过程。
38.At a definite temperature a mesoscopic circuit isnt in a determinate quantum state instead of in the mixed state (or statistical state).Using the density matrix of the canonical ensemble,we have deduced the formulate of the quantum fluctuations of both charge and current in a non-dissipative mesoscopic coupled circuit.And the dependences of the quantum fluctuation of the circuit on its temperature have obtained.
在有限温度下，介观电路系统实际上并不处在一个确定的量子状态，而是处在混合态.根据正则系综的密度矩阵导出耦合互感电路中电荷和电流的量子涨落，得到了量子涨落与温度的依赖关系.
39.The work theory of 247C Four-channel Readout produced by MKS corporation is expounded in this paper,then the voltage-flow curve of the equipment is obtained through a experiment in typical work condition.
分析了MKS公司生产的气体流量控制系统247CFour-ChannelReadout的工作原理,并通过实验得出系统的工作曲线,并设计出该仪器与PC并口的接口电路。
40.A cable call interactive conversation system controlled by single chip microcomputer and used by DTMF encoding technology is introduced,and the system principle,interface of MCS-51 single chip computer with MT8880 and address identification circuit of slave-machine are discussed in this paper.
介绍一种由单片机控制、采用DTMF编码技术的有线传呼对讲系统，重点讨论系统原理、MCS－51单片机与MT8880的接口及副机地址识别电路
41.BDD( Binary Decision Diagram)is the state-of-the-art data structure in logic function. It is widely used in the fields of computer science and digital circuit and system.
二元判决图BDD(Binary Decision Diagram)是逻辑布尔函数的一种高效表示方法，在计算机科学以及数字电路与系统等领域中有广泛的应用。
42.The problem of switching noise is analyzed in detail and analog filter between APF and power system is designed according to the equivalent circuit of compensation part.
详细分析了所选方案存在的开关噪声成因，并且建立了补偿环节的等效电路，据此完成了有源滤波器与系统连接处的模拟滤波器的设计；
43.Emphasis has been placed on the optical receiving system, including APD receiver, receiver of the optical interface, Physical Layer protocols of fast Ethernet, fast Ethernet interface and control unit.
重点研究了大气激光通信光接收系统,包括基于雪崩光电二极管的光接收模块、光接口模块中的接收部分、快速以太网物理层协议标准、快速以太网接口电路与控制模块。
44.A 5V, 20MHz, 10-bits pipeline ADC converter is presented in this paper, following an analysis on various high speed ADC converters. This ADC in front stage of PAL video decoder is used for converting from analog video signal to digital video signal.
本文在分析比较了各种模数转换器(ADC)的结构特点后,并通过在MATLAB下进行的流水线ADC 的系统级仿真分析后,采用流水线结构完成了一个10 位20 兆赫兹采样频率的模数转换器的电路与版图设计,此电路是电视视频解码处理芯片的前级处理部分,完成模拟电视信号的采样功能。
45.Two phase equivalent circuit of Scott connection transformer is put forward. The impedance transformation relations between 3 phase and 2 phase are revealed,which are identical to the results obtained from the system coordinate transformation method.
提出了Scott接线变压器的两相等效电路 ,并揭示出了与利用系统坐标变换方法一致的三相—两相阻抗变换关系。
46.This article introduces design and research of signals acquisition circuit for the portable instrument of fault diagnosis andtrend estimation of the large rotary sets, including working principle of the system, circuit design of signals conditioning 、signals ac-quisition of the vibrating and temperature and serial communication, and the development of serial communication program and signalsacquisition program.
本文介绍了针对便携式旋转机械故障诊断和趋势预测仪器的信号采集电路的设计与研究,其中包括系统的工作原理,信号调理、震动和温度信号采集和串口通信电路的设计,以及单片机串口通讯程序和信号采集程序的开发。
47.This paper assumes a development project about the application platform of embedded GUI based on ARM MPU and embedded RTOS(Real-time Operation System). The design and debugging of the Hardware circuit based on ARM MPUhas been completed, and the design and application of Software platform has been implemented, including the program of Boot Loader, the portability of uC/OS-II, the program of UART communication, the application of uC/GUI and so on.
本文研究设计了一种基于ARM微处理器和嵌入式实时操作系统的嵌入式GUI应用平台的方案,完成了系统硬件电路的设计与调试,实现了包括:系统启动加载程序Boot Loader、uC/OS-Ⅱ操作系统的移植、串口通信程序、uC/GUI图形软件应用等系统软件平台的设计与应用。
48.A novel coal gangues on-line recognition and automation selection system based on the ARM (advanced RISC machines) microprocessor and CAN(controller area network) bus is introduced in order to explore a new way for the coal dry selection technique. The design idea of the interface circuits between the ARM microprocessor and the CAN controller is discussed, and the flow chart of the communication between AT91M40800 and SJA1000 is given.
简要介绍了ARM(Advanced RISC Machines)微控制器和CAN(Controller Area Network)总线技术构成的煤矸石在线识别与自动分选系统,给出了ARM微控制器AT91M40800与CAN总线控制器SJA1000之间相连的硬件电路,论述了硬件接口之间的数据通信实现技术,给出了数据通信的软件设计流程。
49.Abstract: The supplemental restraint system on BENZ car is composed of safety air bag system and safety belt retractor system.This paper introduces the structure characteristics，working principle and control circuit and expounds the fault code reading and delating methods.
文摘:奔驰轿车装备的辅助防护系统由安全气囊系统和座椅安全带收紧系统2部分组成，介绍了其结构特点、工作原理及控制电路，阐述了读取与清除故障代码的诊断测试方法。
50.What is more,because this system shares the same set of computer hardware and actuating mechanism with the system of automatic arc length control,nearly no more cost will be increased.
该系统具有控制精度高 ,可以很好地解决接触引弧过程中出现的夹钨等缺陷问题 ,更为优越的是该系统与弧长自动控制系统共用一套计算机硬件电路和执行机构 ,仅增加部分程序 ,几乎不增加成本
51.This,combined with the flexible interface and powerful communication capability of TMS320C40 ,made the system be easily configured as SIMD,MIMD parallel and pipeline structures.
电路采用可变结构帧存形式，与两片TMS320C40灵活的外部接口及强大的通信能力相结合，使系统可方便地组织成SIMD、MIMD等并行处理结构及流水处理结构；
52.The pin description of the Real Time Clock Chip,DS12887,is given. And the structure of its internal RAM and the functions of all control registers are elaborated. As a typical application of DS12887,we introduct the design of the Real Time Clock System which mainly consists of DS12887 and 8031.
文中给出了DS12887 的引脚功能，阐述了它的内部RAM 结构及控制寄存器的功能．作为DS12887 的一个典型应用，介绍了它与8031 单片机构成的实时时钟系统电路设计
53.Additionally, a 4~ 20mA current output channel to provide system check-up using AD421. In the system, AD421, AD7705 and the microchip compose SPI bus;
另外，针对研制任务的要求，还给系统加上了一路4～20mA模拟信号电流环的输出电路来提供系统监测，该部分的实现是通过采用AD421芯片来完成的，本设计中完成了AD421与单片机的SPI接口任务，协调了它与AD7705芯片和单片机共同构成的SPI总线系统的关系，并完成了程序设计；
54.This paper introduces the features and the operating principle of Σ - △ ADC AD7731, and provide a sample,which include an interface circuit and program design between SIMATIC S7-200 PLC and AD7731 in improving of RUSKA PVT 2370.
介绍了∑-△模数转换器AD7731的主要特点和工作原理,并给出在RUSKAPVT2370仪器改造中,AD7731与SIMATICS7-200系列PLC组成的数据采集系统的接口电路和软件设计。
55.(3) A series of interface electric circuits of the communication system were completed. The communication programs between the microcomputer and a PC computer are worked out.
(3)完成了通信系统的硬件电路设计，编制了单片机和PC机的通信程序，实现了单片机与PC机之间的串行通信。
56.At a definite temperature a mesoscopic circuit isnt in a determinate quantum state instead of in the mixed state (or statistical state).Using the density matrix of the canonical ensemble,we have deduced the formulate of the quantum fluctuations of both charge and current in a non-dissipative mesoscopic coupled circuit.And the dependences of the quantum fluctuation of the circuit on its temperature have obtained.
在有限温度下，介观电路系统实际上并不处在一个确定的量子状态，而是处在混合态.根据正则系综的密度矩阵导出耦合互感电路中电荷和电流的量子涨落，得到了量子涨落与温度的依赖关系.
57.The program design procedure of the multiwave electroplate controller is introduced in this paper, including the function description, hardware construction, circuit design, software flowchart, software design methods, and subroutines of conversion between multibyte binary number and BCD code.
系统介绍了一种多波形电镀电源控制器的设计过程 ,包括功能描述、硬件框图、具体实现电路、软件流程图、软件设计方法和部分多字节二进制与BCD码转换子程序
58.The results show that this attenuator,which is 12 mm×8 mm×0.5 mm and works at low temperature,can be used alone or integrated into HTS system to decrease system volume and weight.
主要结论如下:光控高温超导微波可变衰减器在液氮温区工作,电路尺寸为12 mm×8 mm×0.5 mm,可单独使用也可集成于高温超导系统中,可大幅减小系统的体积与质量;
59.Meanwhile,it produces the example that the TMS320F2812 DSP integrated with IN-AMP through using CPLD and 16bit ADC successfully by hardware based on my work.
同时,结合作者实际工作的一个成功应用TMS320F2812 DSP与仪表放大器以及同步采样16 b ADC通过CPLD硬件接口的实例。 通过验证此电路系统有非常好的性能和可扩展性。
60.Compared with conventional track circuit, the advantages of Siemens AzS (M) 350 M microcomputer controlled axle counting equipment system in detecting the section occupying or free are summarized. And its system configuration, working principle and application are also introduced.
介绍西门子AzS(M)3S0 M型微机计轴设备与传统的轨道电路相比在完成铁路区段空闲、占用检查功能方面的优势和这种系统的构成、工作原理及具体运用。
61.Electric Circuit and Comprehensive Experiment course, including the usage of general instrument,mixer,RF power amplifier,analog AM and FM communication system experiments,is one of the important basic practice tache for electronics,information and communication technology major students.
“电子电路与综合实验”课程是电子、信息、通信类等专业学生重要的基础实践环节之一,主要内容包括混频器、射频功率放大器、模拟调幅调频通信收发系统实验及常用仪器的使用。
62.The system adopted the project of wireless communication between two host, used point to point Bluetooth module ROK101008. One host was PC that was connected with ROK101008 by interface circuit, and its software was programmed with VC++6.0, the host exchanged digital with ROK101008 by serial communication interface.
本系统采用上下位机无线通信的方案设计,利用点到点无线通信的蓝牙模块ROK101008,上位机主机采用PC机通过接口电路与蓝牙模块ROK101008相连,PC机软件采用VC++6.0编程,通过串口对蓝牙模块ROK101008进行通信控制;
63.A 5V, 20MHz, 10-bits pipeline ADC converter is presented in this paper, following an analysis on various high speed ADC converters. This ADC in front stage of PAL video decoder is used for converting from analog video signal to digital video signal.
本文在分析比较了各种模数转换器(ADC)的结构特点后,并通过在MATLAB下进行的流水线ADC 的系统级仿真分析后,采用流水线结构完成了一个10 位20 兆赫兹采样频率的模数转换器的电路与版图设计,此电路是电视视频解码处理芯片的前级处理部分,完成模拟电视信号的采样功能。
64.New integrated controller for EPS and HASS (half active suspend system) was designed for test. Control circuit diagram and ECU (electrical control unit) were developed based MCS-51. After bench test, a road test was carried out in CH6353 with EPS and, the tests results demonstrate the effectiveness of proposed control methods for test.
研究开发了基于MCS-51单片机的控制电路和ECU,以及EPS与整车系统的PC机信号采集系统,对EPS系统进行台架试验,在改装后的装有EPS和有级可调阻尼器的昌河CH6353微型面包车上进行了道路试验。 试验结果表明,对电动助力转向和半主动进行集成控制是可行有效的。
65.This paper assumes a development project about the application platform of embedded GUI based on ARM MPU and embedded RTOS(Real-time Operation System). The design and debugging of the Hardware circuit based on ARM MPUhas been completed, and the design and application of Software platform has been implemented, including the program of Boot Loader, the portability of uC/OS-II, the program of UART communication, the application of uC/GUI and so on.
本文研究设计了一种基于ARM微处理器和嵌入式实时操作系统的嵌入式GUI应用平台的方案,完成了系统硬件电路的设计与调试,实现了包括:系统启动加载程序Boot Loader、uC/OS-Ⅱ操作系统的移植、串口通信程序、uC/GUI图形软件应用等系统软件平台的设计与应用。
66.ICL(7106)3_(1/2) bit A/D convertor through the encoder convert the sectional code into BCD code. The BCD output is interfaced with the microcomputer system,when through se- veral aualog channel qnantity is collected we can use the multiplexor. Our experiment has proved that the system has simple circuit with reliabe operation and it is cheap.
本文介绍了 ICL(7107)3_(1/2)位 A/D 转换器段码输出与微机系统的接口电路,ICL(7106)3_(1/2)位 A/D 转换器经编码器,将段码转换为 BCD 码输出与微机系统收接,当对多个模拟量进行检测时可应用多路开关,实验证明联接线路简单,运行可靠,装置便宜。
67.After carrying out great deal of related researches on this subject home and abroad, we developed "High-speed Acquisition and Processing System of Switching Apparatus Experimental Parameters" , which can acquire and process many important parameters such as circuit power factor, power frequency, joule integral(I t), arching time and the voltage between two contacts, etc.
在分析国内外研究现状后,我们研制了“开关电器试验参数高速采集与处理系统”,完成对电路功率因数、电源频率、焦耳积分(I~2t)、燃弧时间以及触头两端电压等主要参数的高速采集和处理。
68.A novel coal gangues on-line recognition and automation selection system based on the ARM (advanced RISC machines) microprocessor and CAN(controller area network) bus is introduced in order to explore a new way for the coal dry selection technique. The design idea of the interface circuits between the ARM microprocessor and the CAN controller is discussed, and the flow chart of the communication between AT91M40800 and SJA1000 is given.
简要介绍了ARM(Advanced RISC Machines)微控制器和CAN(Controller Area Network)总线技术构成的煤矸石在线识别与自动分选系统,给出了ARM微控制器AT91M40800与CAN总线控制器SJA1000之间相连的硬件电路,论述了硬件接口之间的数据通信实现技术,给出了数据通信的软件设计流程。
69.Abstract: The supplemental restraint system on BENZ car is composed of safety air bag system and safety belt retractor system.This paper introduces the structure characteristics，working principle and control circuit and expounds the fault code reading and delating methods.
文摘:奔驰轿车装备的辅助防护系统由安全气囊系统和座椅安全带收紧系统2部分组成，介绍了其结构特点、工作原理及控制电路，阐述了读取与清除故障代码的诊断测试方法。
70.What is more,because this system shares the same set of computer hardware and actuating mechanism with the system of automatic arc length control,nearly no more cost will be increased.
该系统具有控制精度高 ,可以很好地解决接触引弧过程中出现的夹钨等缺陷问题 ,更为优越的是该系统与弧长自动控制系统共用一套计算机硬件电路和执行机构 ,仅增加部分程序 ,几乎不增加成本
71.The text probes into the serial communication of C8051F020 and constructs the application of serial communication of the UART0 of C8051F020. The text puts forward the serial communication system of SCM to PC, and constructs its hardware circuit and communication program.
探讨了C8051F020单片机的串行口通信技术,并在此基础上构造了基于C8051F020单片机的UART0口的串行通信技术。 提出了与单片机串行通信系统结构,完成了其串行通信的硬件电路设计及其软件通信程序的设计。
72.Additionally, a 4~ 20mA current output channel to provide system check-up using AD421. In the system, AD421, AD7705 and the microchip compose SPI bus;
另外，针对研制任务的要求，还给系统加上了一路4～20mA模拟信号电流环的输出电路来提供系统监测，该部分的实现是通过采用AD421芯片来完成的，本设计中完成了AD421与单片机的SPI接口任务，协调了它与AD7705芯片和单片机共同构成的SPI总线系统的关系，并完成了程序设计；
73.Compared with the SCP(Single Chip Processor) with less than 100MHz Clock Rate, the High-Performance Fixed-Point DSP(TMS320C6205) has 200MHz Clock Rate. The use of the FPGA can not only make it easy to debug the system, but also cut down the expense and volume of the system, so that the DSO will become portable. In the project, the system integrates a DSP and its external peripherals, a data acquisition system and a FPGA.
由于DSP 采用TMS320C6205 通用32 位定点DSP 处理器,其最高工作频率可达200MHz,与主频在100MHz 以下的单片机相比,系统的时钟速度及数据处理能力提高极大,而FPGA 的应用不仅使系统便于调试,而且大大降低了系统的成本、外围电路的复杂程度以及设备的体积,有利于制作便携式示波器。
74.Measurement is made, by using partially depleted gold silicon surface barrier detectors, on the α particles in the radon chamber. Issues like what kind of subsequent electric circuit should be adopted to produce effectively the spectrum measure data and the gross measure data, and how to conduct the measure of the radon chamber temperature and humidity in a convenient and accurate way, are one of the important aspects of investigation of radon chamber dada acquisition systems.
在氡室中,通过金硅面垒半体探测器对α粒子的测量,采用怎样的后续电路结构才能有效的获取谱测量数据与总量测量数据,以及对氡室环境的温、湿度如何能简捷、准确测量是氡室数据采集系统的重要研究课题之一。
75.This paper introduces the features and the operating principle of Σ - △ ADC AD7731, and provide a sample,which include an interface circuit and program design between SIMATIC S7-200 PLC and AD7731 in improving of RUSKA PVT 2370.
介绍了∑-△模数转换器AD7731的主要特点和工作原理,并给出在RUSKAPVT2370仪器改造中,AD7731与SIMATICS7-200系列PLC组成的数据采集系统的接口电路和软件设计。
76.Circuit Theory, Fundamentals of Electronics Technology, Principle &Application of Microcomputer, Automatic Control Principles, Theory of Error and Data Disposal, Digital Signal Processing, Process Measurement and Instrumentation, Theory &Application of Sensor, Intelligent Mechanic Design, Metrology and Measurement technology, Process Control and Automated Instrument, etc.
电路理论、电子技术基础、微机原理及应用、自动控制理论A、误差理论与数据处理、数字信号处理（自）、过程参数检测及仪表、传感器原理及应用、智能仪表设计、计量测试技术、过程控制系统等。
77.The model of harmonic source in marine electric network is researching object in this dissertation. Through analyzing the harmonics, a mixed harmonic suppression system composed of a mixed Series APF and an APFCC is designed. Then the system is simulated in the Matlab/Simulink software and the Etap software.
本文以船舶电网谐波源模型为研究对象，进行谐波分析，设计了一个由串联混合型有源滤波器(APF)与有源功率因数校正电路(APFCC)混合使用的谐波抑制系统，并对其用Matlab／Simulink软件和电力系统分析计算应用软件Etap进行仿真研究。
78.An intelligent fuzzy measurement and control system based on PA bus interface for temperature in rotary kiln is designed by using dual single chip computer AT89S52 and AT90S8515.The hardware circuits of Profibus-PA bus communication interface and temperature measurement interface of rotary kiln are designed by using ASIC chips SPC4,SIM1.The program flowchart of bus communication interface is provided.
采用双单片机AT89S52与AT90S8515设计了基于PA总线接口的回转窑温度智能模糊测控系统。 利用ASIC芯片SPC4、SIM1设计了Profibus-PA总线通信接口和回转窑温度检测接口硬件电路,给出了总线通信接口程序流程图。
79.The results show that this attenuator,which is 12 mm×8 mm×0.5 mm and works at low temperature,can be used alone or integrated into HTS system to decrease system volume and weight.
主要结论如下:光控高温超导微波可变衰减器在液氮温区工作,电路尺寸为12 mm×8 mm×0.5 mm,可单独使用也可集成于高温超导系统中,可大幅减小系统的体积与质量;
80.R8830, a 16-bit MCU is used as the only one processor in this design. I select SST28SF040, a EEPROM with the function of data protection to storage my software. K9F2808, a Nand_Flash memory with the bad block mapped function is used as a fiscal and invoice memory.
硬件电路设计中选用16位MCU—R8830作为系统唯一的中央处理器,程序存储器选用具有数据写保护功能的SST28SF040,税控和发票存储器选用具有坏块映射功能的与非存储器K9F2808。
81.After carrying out great deal of related researches on this subject home and abroad, we developed "High-speed Acquisition and Processing System of Switching Apparatus Experimental Parameters" , which can acquire and process many important parameters such as circuit power factor, power frequency, joule integral(I t), arching time and the voltage between two contacts, etc.
在分析国内外研究现状后,我们研制了“开关电器试验参数高速采集与处理系统”,完成对电路功率因数、电源频率、焦耳积分(I~2t)、燃弧时间以及触头两端电压等主要参数的高速采集和处理。
82.This paper introduces the system of target simulation and jamming based on DRFM. We simulate target range by controlling delay time of pulse,and velocity by controlling frequency of DDS. This paper also presents the design method of realizing multiple targets in one channel and the solution to the synchronization problem of different channels.
介绍了基于DRFM(数字射频存储器)的雷达目标模拟与欺骗干扰系统中,通过控制DRFM的读出时间,以模拟运动目标距离控制DDS(直接数字频率合成器)的频率控制多普勒频移,以模拟运动目标的速度,给出了单通道模拟多个目标和产生欺骗干扰时控制电路的实现方法,解决了多通道模拟目标及欺骗干扰时通道间同步问题。
83.Fuzzy control does not need precision mathematic model to conquer the shortcoming in routine digital DC Speed Regulation. We can combine with the PID adjuster and fuzzy control, focusing on theory research and realization of fuzzy-PID compound control scheme, design relevant DC Speed Regulation System was designed in the dissertation.
模糊控制不要求被控对象的精确模型且适应性强,为了克服常规数字直流调速装置的缺点,本文将模糊控制与PID调节器结合,着手fuzzy-PID复合控制方案理论研究和硬件的实现,设计出相关控制方案的直流调速系统,该方案以AT89S51单片机为主控单元,高精度位置控制LM629为电机控制芯片与一些外围电路构成硬件系统; 以参数模糊自整定PID为控制策略。
84.Measurement is made, by using partially depleted gold silicon surface barrier detectors, on the α particles in the radon chamber. Issues like what kind of subsequent electric circuit should be adopted to produce effectively the spectrum measure data and the gross measure data, and how to conduct the measure of the radon chamber temperature and humidity in a convenient and accurate way, are one of the important aspects of investigation of radon chamber dada acquisition systems.
在氡室中,通过金硅面垒半体探测器对α粒子的测量,采用怎样的后续电路结构才能有效的获取谱测量数据与总量测量数据,以及对氡室环境的温、湿度如何能简捷、准确测量是氡室数据采集系统的重要研究课题之一。
85.Circuit Theory, Fundamentals of Electronics Technology, Principle &Application of Microcomputer, Automatic Control Principles, Theory of Error and Data Disposal, Digital Signal Processing, Process Measurement and Instrumentation, Theory &Application of Sensor, Intelligent Mechanic Design, Metrology and Measurement technology, Process Control and Automated Instrument, etc.
电路理论、电子技术基础、微机原理及应用、自动控制理论A、误差理论与数据处理、数字信号处理（自）、过程参数检测及仪表、传感器原理及应用、智能仪表设计、计量测试技术、过程控制系统等。
86.An intelligent fuzzy measurement and control system based on PA bus interface for temperature in rotary kiln is designed by using dual single chip computer AT89S52 and AT90S8515.The hardware circuits of Profibus-PA bus communication interface and temperature measurement interface of rotary kiln are designed by using ASIC chips SPC4,SIM1.The program flowchart of bus communication interface is provided.
采用双单片机AT89S52与AT90S8515设计了基于PA总线接口的回转窑温度智能模糊测控系统。 利用ASIC芯片SPC4、SIM1设计了Profibus-PA总线通信接口和回转窑温度检测接口硬件电路,给出了总线通信接口程序流程图。
87.R8830, a 16-bit MCU is used as the only one processor in this design. I select SST28SF040, a EEPROM with the function of data protection to storage my software. K9F2808, a Nand_Flash memory with the bad block mapped function is used as a fiscal and invoice memory.
硬件电路设计中选用16位MCU—R8830作为系统唯一的中央处理器,程序存储器选用具有数据写保护功能的SST28SF040,税控和发票存储器选用具有坏块映射功能的与非存储器K9F2808。
88.Energy absorber is the key component in HVDC circuitbreaker. After interrupting, the remaining energy in the HVDC system should be dissipated by absorber. The energy is dependent on the transmission line parameters, grounding location and the interrupting current.
高压直流断路器开断直流电路后,系统电感中的一部分能量必须消耗在能量吸收装置中,这部分能量与直流输电线路的参数、故障点的位置以及开断电流的大小有关,本文利用电磁暂态过程计算程序对此进行了计算。
89.A close-loop power circuit with feedback switch power chip LM2587 and DAC chip TLV5618A is introduced. With this circuit,it can provide 8～36 V output,and its precision is 0.1 V.This circuit is used in automobile assembled meter debug system.
介绍了一种基于反馈式开关电源芯片LM2587与DAC芯片TLV5618A构成的闭环电源电路,可实现8~36 V的开关电源输出,精度可达0.1 V,已经应用到汽车组合仪表调试系统中。
90.Then, the author specially studies the characteristic of system architecture of the DSP, paints schematic principle diagram and PCB diagram of the hardware circuit system, writes the program decoding and partial data processing of the CPLD, adopting Verilog HDL hardware describing language.
然后，研究了DSP芯片结构体系的特点，绘制了硬件电路系统的原理图和PCB图，且采用Verilog HDL硬件描述语言编写了复杂可编程逻辑器件(CPLD)的译码与部分数据处理程序。
91.This paper elaborates the automatic measuring system, with the reduced design of hardware and software, which can realize such functions as collecting the axial run-out of saw-blade, asynchronous communicating between the measuring system and a PC, processing data, displaying and printing the axial run-out and distortion on screen.
该系统采用精简的硬件电路设计和面向实时检测的软件设计，可实现锯片轴向变形数据的实时采集并及时上传检测数据，PC机可对接收的变形数据进行处理，实现变形数据与变形圆的屏幕显示和打印等功能。
92.The paper first introduces composing of the equipment and working principle, then makes simple compare for distinctness between digital signal processor (DSP), embedded system and single-chip microcomputer, finally introduces in detail main technical problems that need resolved in design, which including automatic dial-up calling, building of voice channels, on/off- hook control, communication, reliability and anti-interference, design of hardware circuit (attaching with schematic circuits), etc.
本论文主要有几个部分组成，首先介绍设备的构成及工作原理，其次对数字信号处理器(DSP)、嵌入式系统以及它们与单片微型计算机的不同之处作简单比较，最后详细介绍在设计时要解决的几个主要技术问题：自动拨号呼叫、语音通路的建立、摘挂机控制、通信、可靠性及抗干扰、硬件电路等设计(附原理图)。
93.This paper addresses high speed communication solution between 16 bit microcontroller?based data acquisition system and PC/AT compatible computer. After 16 bit Industry Standard Architecture (ISA) peripheral interface of PC is analysed, a 16 bit parallel communication card is developed with three kinds of optional modes: poll, interrupt and DMA.
为了解决单片机数据采集系统与PC机之间大数据量交换时的低速问题，剖析了目前广为流行的PC／AT兼容机ISA通道的16位I／O接口原理，并通过细致的电路设计，开发了一种通用性很强的高速16位并行通讯插卡，且使用了3种可选的通讯方式，即查询、中断和DMA。
