English translation for "keyboard unit"

键盘单位

Related Translations:

keyboard controller:  键盘控制器

figure keyboard:  字符键盘

keyboard events:  键盘事件

virtual keyboard:  虚拟键盘

portatone keyboards:  手提电子琴

keyboard focus:  键盘焦点

system keyboard:  系统键盘

universal keyboard:  通用键盘

alternate keyboard:  替换键盘

chord keyboard:  弦键盘

Example Sentences:

	1.	Crt display and keyboard units for business use 商业用阴极射线管显示器及键盘
	2.	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 该测控系统以at89c51单片机为核心，配以信号调理电路、 a d转换电路、信号输出电路和键盘显示单元等几个部分。
	3.	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 针对研制任务的要求，课题期间研制了下位机系统硬件和软件，开发了上位机监控软件，其中所作的具体工作包括：测量原理的研究和在系统中的实现，在本次设计中用三种方法来进行水位测量，分别是旋转编码器法、液位压力传感器法和可变电阻器法；主控芯片的选择，我们选用了高集成度的混合信号系统级芯片c8051f021 ；实现了信号的采集和处理，包括信号的转换和在单片机内的运算；高集成度16位模数转换芯片ad7705在系统中的应用，我们完成了它与单片机的接口设计及程序编制任务；精确时钟芯片ds1302在系统中的应用，在此，我们实现了用单片机的i o口与ds1302的连接和在软件中对时序的模拟，该芯片的应用给整台仪器提供了时间基准，方便了仪器的使用；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；与上位机的通信接口设计，该部分通过两种方法实现： rs232通信方式和rs485通信方式；系统设计方面还包括报警电路设计、操作键盘设计、电源监控电路设计、电压基准电路的设计。

Similar Words：

"keyboard terminal" English translation, "keyboard time-out" English translation, "keyboard transmitter" English translation, "keyboard traversal" English translation, "keyboard type" English translation, "keyboard verifier" English translation, "keyboard video terminal" English translation, "keyboard volume" English translation, "keyboard-to-disk system" English translation, "keyboard-to-tape system" English translation