智能交流電壓表的設(shè)計(jì)

摘要: 電工參數(shù)一般包括電壓、電流、功率、頻率、功率因數(shù)等。在電網(wǎng)調(diào)度自動(dòng)化的設(shè)備中需要配置多只測量顯示上述電工參數(shù)的鑲嵌式面板表，如電壓表、電流表、功率表等等，其一般均為指針式面板表，精度低，可視距離近，數(shù)據(jù)需要人工抄錄，浪費(fèi)人力資源，數(shù)據(jù)管理不便，容易出錯(cuò)。近年來，隨著微電子技術(shù)的迅速發(fā)展和超大規(guī)模集成電路的出現(xiàn)，特別是單片機(jī)的出現(xiàn)，正在引起測量控制儀表領(lǐng)域的新的技術(shù)革命。
本文在研究國內(nèi)外有關(guān)智能儀器儀表最新科研成果的基礎(chǔ)上，采用單片機(jī)作為測量儀器的主控制器，設(shè)計(jì)出可與上位計(jì)算機(jī)進(jìn)行通信的新型智能交流電壓表。這種以單片機(jī)為主體的新型智能儀表將計(jì)算機(jī)技術(shù)與測量控制技術(shù)結(jié)合在一起，在測量過程自動(dòng)化，測量結(jié)果數(shù)據(jù)處理以及功能的多樣化方面都取得了巨大的進(jìn)步。
智能化儀表不僅具有傳統(tǒng)儀表的顯示功能，還應(yīng)具有通信功能。把測量到的數(shù)據(jù)信息發(fā)送給上位計(jì)算機(jī)或遠(yuǎn)程計(jì)算機(jī)，接收并執(zhí)行計(jì)算機(jī)或其他控制單元發(fā)出的指令.智能儀表將作為工廠底層網(wǎng)絡(luò)的主體，在工業(yè)生產(chǎn)的自動(dòng)化、總線化、網(wǎng)絡(luò)化方面發(fā)揮主導(dǎo)作用。
關(guān)鍵詞: 單片機(jī)；智能儀表；數(shù)據(jù)處理；通信

DESIGN OF INTELLIGENT AC VOLTAGE METER

ABSTRACT： Electrical parameter includes voltage,current,power，frequency，power factor,and so on .The adjustment system of electrical network needs many panel instruments that can show the electrical parameter,such as voltage,current,power,cycledetc.Usually these instrument is not accurate,wastes manpower resource,and the management of the data is inconvenient and easy to mistake.Recently the development of micro-electronics technology and the advent of SLSI,especially the advent of singlechip,lead to a new revolution in the field of instrument.
In this paper，on the basis of studying the up to date fruit of instrument ,a new intellective instrument which adopts singlechip as control core and which can  communicate with the PC is designed. This appliance which bases on the singlechip compounds the technology of computer and measure. It is improved very much on processing result and the diversification of function.
Intelligent instrumentation is not only traditional instrument display, but also with the communication function. Put measurement information to the data sent to the host computer or remote computers, receive and the implementation of a computer or other control unit issued directives. Intelligent instrumentation as a factory-floor main network, in industrial production automation, bus, Internet-based play a leading role.
Keywords: singlechip;intellective instrument;data process;communication.