Programmable computers vary enormously in their computational power , speed , memory , and physical size 可編程計算機在性能、速度、存儲能力和外觀體積上差別巨大。
Konrad zuse in germany develops the first programmable calculator using binary numbers and boolean logic 德國康拉德?祖薩開發(fā)第一臺采用二進制和布爾邏輯的可編程計算機。
An new type of plc named pcc ( programmable computer controller ) have been competent for large - scale dcs ( distributing control system ) and complex processing control 新一代pcc ( programmablecomputercontroller可編程計算機控制器)已經(jīng)能勝任大型集散控制和復雜的過程控制。
The sample industrial controller of pcc step - type hydraulic governor using this method is proved to be successful by practical operation in hydropower stations 在此基礎上,研究和開發(fā)了基于可編程計算機控制器( pcc )的步進式水輪機調(diào)速器工業(yè)樣機并在電站運行中取得了圓滿成功。
Through analyzing the functions of the simulator , it is reasonable to adopt a programmable computer controller pp41 developed by b & r company as the simulating platform 通過分析仿真儀的功能,考慮實時性、輸入輸出量的實現(xiàn)和仿真圖形顯示等特點,采用奧地利b & r公司的帶有面板功能的可編程計算機控制器pp41作為仿真硬件。
The relaxed definition of ecs ( embedded computer system ) is a device that includes a programming calculator . wearable computer is a specify example of ecs that has lots of characteristics , such as wearability , mobility , durability and new mutual mode of man - machine . those characteristics make the system provide the consumers the service of reminding , apperceiving , and measuring the environment and communicating with high effectiveness 嵌入式計算機系統(tǒng)不嚴格的說就是任意包含一個可編程計算機的設備,可穿戴計算機系統(tǒng)是嵌入式計算機系統(tǒng)的一種應用特例,是具有可穿戴性、可移動性、使用持續(xù)性和全新的人機交互方式,可以與使用者緊密結合,提高使用者的工作能力,提供給使用者協(xié)助、提醒、感知和測量環(huán)境、通信等服務的嵌入式系統(tǒng)。
A new method , which uses shaping circuit and programmable computer controller with appropriate software to measure frequency , is initially applied which overcomes the problems of low reliability and slow responding process of traditional frequency measurement unit , improves the reliability and dynamic quality of frequency measurement and expedites the responding speed effectively 首次提出了一種由整形電路和可編程計算機控制器配以適當軟件完成頻率測量的方法,有效地解決了plc調(diào)速器測頻環(huán)節(jié)存在的可靠性差及響應速度慢的問題,提高了頻率測量的可靠性及動態(tài)品質(zhì)。
After the characteristics and development of excitation system of synchronous generators are analyzed , micro - computer regulating theory of excitation system is discussed , this dissertation presents a scheme of designing excitation system with programmable computer controller ( pcc ) and igbt , and pcc igbt excitation system of turbine generator is also developed according to the above mentioned 本文在全面分析同步發(fā)電機微機勵磁裝置特點及發(fā)展現(xiàn)狀的基礎上,論述了微機勵磁調(diào)節(jié)的原理,提出基于可編程計算機控制器( pcc )控制的絕緣柵雙極晶體管( igbt )勵磁系統(tǒng)的設計方法,并在此基礎上開發(fā)了基于pcc控制的水輪發(fā)電機igbt勵磁系統(tǒng)。