查询词典 interface bus

High frequency and low noise of power device: Local and remote control can be realized and is simple in operation, which can be added the control of time, ampere-hour and temperature as well as PLC, field bus and computer interface.

功率元件工作频率高，不产生噪音。可实现本地和远程控制，操作简便，可增设定时、安时、温度等控制， PLC 或现场总线及计算机接口。

The foundation of this system provides a good reference to promote the standardization and intelligence of the overhaul and maintenance of vacuum switches. This paper develops a special HF pulse power supply for internal pressure estimation, which achieves the output of HF-HV sinusoidal pulse wave whose frequency and amplitude can be modified respectively, and meets the design requirements according to the results of Simulink simulation and practical experiments. With the help of AT89S52, this paper designs an I~2C serial bus based signal detection system for peak value signal acquisition of HF pulse currents, which communicates with the upper computer by asynchronous serial communication for uploading the data. In the upper computer, a human computer interface is developed by Matlab software, whose functions are to do some computation and graphic display, such as calibrating the relation curve of vacuum degree and peak value of HF pulse currents, vacuum degree computation, and vacuum lifetime evaluation analysis basing on grey forecasting model as well as making relative suggestions.

本文研制了用于真空度检测的高频脉冲电源，通过Simulink仿真和试验检验其满足设计要求，实现了电压幅值和频率独立可调的正弦波高频高压脉冲输出；利用以AT89S52为核心基于I~2C串行总线的信号检测系统实现高频脉冲电流峰值信号的采集，通过异步串行通信实现单片机与计算机之间的数据通信，将检测数据传至上位机；在上位机利用Matlab开发人机交互界面，实现相关数据处理和图形显示，包括真空度——高频脉冲电流峰值关系曲线标定、真空度数值计算、基于灰色预测模型的真空寿命评估分析和提出相应决策建议。

LAN was composed of nodes controller based on CAN bus, and master controller could communicate with PC through serial interface. These formed an effective credible control system.

通过CAN总线将各个控制器节点组成局域网络并由总控制器通过串行接口实现与上位机的通信，构成了有效可靠的控制系统。

By dint of computer, the system can provide Virtual Instrument's function of bus interface oriented.

借助计算机，系统可提供面向总线接口的虚拟仪器功能。

This paper introduces the contents and operational methods of the CompactPCI bus and interface technology and PCI configuration space.

介绍了CompactPCI总线、接口技术、配置空间的内容和操作方法。

The DM642 External Memory Interface expands two pieces of MT48LC4M32B2 (4M*32 bit SDRAM) and a AM29LV33C (8M bit FLASH). SDRAM is connected to the 64bit data bus of EMIF, can read/write 64bit data at every cpu cycle, be used to store program, data and image.

单片机采用了Cygnal公司的C8051F020，它使用了CIP-51微控制器内核，与MCS-51TM指令完全兼容。C8051F020通过I2C总线和通用I/O口与DM642相连接，接收I2C偏差数据，并通过单片机内部的两个全双工UART输出。

Interface communication was adopted between each subsystem of monolithic computer and upper computer. The memory with I2C bus interface and serial LED display technique are also adopted in this system.

各单片机子系统与上位机之间采用485接口通信，系统中采用了I~2C总线接口的存储器与串行LED显示技术。

Meanwhile, as the constant increase of electrionic products based on USB bus and the demand of USB interface chips at present, we integrate the USB interface module into MCU IP core, and implement USB equipment controller by way of single chip.

目前，基于USB总线的电子产品种类在不断增加，USB接口芯片的需求越来越大。论文基于所开发的MCU IP核，通过将USB接口IP集成到所开发的MCU IP核中，实现了USB设备控制器的设计。

We provide you with the following high-quality components, you need to improve the reliability of the equipment: signal isolation / transmitter, relay / optocoupler, lightning / surge protector, switching power supply, with a total Line interface, filter / anti-modules, industrial connectors, sensor / actuator interface module, printed circuit board connector, on-site joint boxes, terminals, the button / indicator light, control / Bus cables and other products.

我们为您提供下述的高品质元器件，以提升您所需设备的高可靠性：信号隔离/变送器、继电器/光电耦合器、防雷/浪涌保护器、开关电源、总线接口、滤波器/抗干扰模块、工业用接插件、传感器/执行器接口单元、印刷电路板接插件、现场接线箱、接线端子、按扭/指示灯、控制/总线电缆等产品。

Through the controlling of the GPIB interface board, the computer controlled the current source and the voltmeter, both of which have GPIB bus interface, and a virtual instrument testing system for I~V curve was composed.

计算机通过GPIB 接口卡控制带有GPIB总线接口的电流源和电压表，构成了I~V曲线虚拟仪器测试系统。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。