keyboard unit 中文意思是什麼

Accessories keyboard display unit kp - 200

選購配件:特定外語字元集等

A trademark used for a typesetting machine operated from a keyboard that activates a unit that casts and sets individual characters

莫諾鑄排機一種排字機的商標，通過使一個構件動作的鍵盤來操作，這種構件可以澆鑄或排版單個字

In paper tape equipment, a tape punch operated by a keyboard, by received signals or by another unit

在紙帶設備中，用鍵盤或接收到的信號或由另一臺設備操作的紙帶穿孔機。

According to the request of this subject, we have developed the system hardware and software for the slave device and the inspection software running on the pc. in this paper all of the followings is illustrated detailedly, such as the research on the principles of measurement and its realization, three means of water - level measurement that are separately based on photo electricity coder, pressure sensor and potentiometer ; selection of the microchip, we choose an advanced integrated soc ( system on chip ) microchip c8051f021 as the main controller ; realization of signal sampling, processing and its conversion in the mcu ; application of high precision 16 bits adc cmos chip - - ad7705 in our system, designing its interface with the microchip and relevant program ; using a trickle charge timekeeping chip ds1302 in the system which can provide time norm and designing of its i / o interface and program ; 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 ; to communicate with the master pc, here we use two ways which are separately rs232 and rs485 ; moreover, there are alarm unit, keyboard unit, power supply inspection unit and voltage norm providing unit in the system

針對研製任務的要求，課題期間研製了下位機系統硬體和軟體，開發了上位機監控軟體，其中所作的具體工作包括：測量原理的研究和在系統中的實現，在本次設計中用三種方法來進行水位測量，分別是旋轉編碼器法、液位壓力傳感器法和可變電阻器法；主控晶元的選擇，我們選用了高集成度的混合信號系統級晶元c8051f021 ；實現了信號的採集和處理，包括信號的轉換和在單片機內的運算；高集成度16位模數轉換晶元ad7705在系統中的應用，我們完成了它與單片機的介面設計及程序編制任務；精確時鐘晶元ds1302在系統中的應用，在此，我們實現了用單片機的i o口與ds1302的連接和在軟體中對時序的模擬，該晶元的應用給整臺儀器提供了時間基準，方便了儀器的使用；另外，針對研製任務的要求，還給系統加上了一路4 20ma模擬信號電流環的輸出電路來提供系統監測，該部分的實現是通過採用ad421晶元來完成的，本設計中完成了ad421與單片機的spi介面任務，協調了它與ad7705晶元和單片機共同構成的spi總線系統的關系，並完成了程序設計；與上位機的通信介面設計，該部分通過兩種方法實現： rs232通信方式和rs485通信方式；系統設計方面還包括報警電路設計、操作鍵盤設計、電源監控電路設計、電壓基準電路的設計。

And a kind of 16 - step automatic selective programmable amplifying circuit is designed in volume resistivity measuring circuit, so as to handle sampling little and broad signal. the control and disposal system with the core of microchip at89c55wd is analyzed on chapter 4. main function unit such as the interface circuit of lcd display and keyboard, the interface circuit of micro - printer, real time clock ds12c887, and hardware anti - jamming technique are discussed

本文還設計了以at89c55wd單片機為核心的控制處理系統的外圍介面電路及其軟體，對主要功能部分進行了分析，主要包括：鍵盤液晶顯示介面及界面設計、微型印表機介面、實時日歷時鐘晶元ds12c887 、單片機與單片機及單片機與上位機的通信設計以及控制系統硬體抗干擾措施等。

This system uses at89c51 microcomputer as its core and is also provided with some correlative circuits, including a signal adjustment circuit, an a / d convert circuit, a signal output circuit and a display / keyboard unit

該測控系統以at89c51單片機為核心，配以信號調理電路、 a d轉換電路、信號輸出電路和鍵盤顯示單元等幾個部分。

The bottom control unit is controlled by an at90s8535 mcu and includes l298n, keyboard and led. the software is also designed in the paper

下位機是avr單片機at90s8535 ，硬體電路包括l298電機驅動電路、鍵盤和led顯示電路等。

A typical calculator chip from rcl semiconductor inc, c9821, is referenced and developed. the chip of the calculator consists of several function units such as rc oscillator, power management module, microprogrammed control unit ( mcu ), register group, lcd driver and keyboard interface

在硬體方面，在完成計算器的功能模塊劃分的基礎上，對包括rc振蕩器、電源模塊、 lcd顯示驅動模塊、鍵盤介面、寄存器組、微程序控制器在內的各個功能模塊的系統結構和電路原理進行了分析，掌握了它們的設計方法。

From a small unit, a laser beam projects the image of a glowing red keyboard onto a flat surface

雷射光束是從一小型裝置透射在平面上，顯現成一個發紅光的鍵盤圓形。

Neutron monitor device uses mcu ( micro control unit ) as the control unit. mcu is the control center, and it controls lcd, programmable logic device, keyboard and communication with computer. it makes this system work harmony and fluently

單片機是系統的控制中樞，通過單片機來實現對系統的液晶顯示器、可編程器件、鍵盤以及與計算機通訊的控制，使得整個系統能夠協調、通暢的工作。

A computer is made up of three main parts : a keyboard, a monitor, and the computer unit

計算機主要有三部分組成：鍵盤、顯示器、和主機。