Three - phase signal generator based on single - chip microprocessor 單片機三相信號發(fā)生器
Control system design of hoisters based on single - chip microprocessors 建筑卷揚機的單片機控制系統(tǒng)設計
The development of saving energy control system for the motor based on pic single - chip microprocessor 單片機電機節(jié)能控制系統(tǒng)的研制
Anti - interference way of frequence - variable air - conditioner based on single - chip microprocessor 基于單片機的變頻空調器的抗干擾設計探討
An instrument for measuring and analysing low frequency absolute vibration based on single - chip microprocessor 基于單片機的低頻絕對振動測量分析儀
In every refrigerated container system , a single - chip microprocessor has been used . it has been operated hi laboratory and factory quit well 加快研制、開發(fā)和生產(chǎn)冷藏集裝箱具有重要的意義,其技術可行,經(jīng)濟效益巨大。
The controlling part of the comprehensive measuring instrument is 16 bits single - chip microprocessor 80c196kc . it is based on sampling theory and uses synchronous sampling algorithm to measure ac parameters of power system . it has many advantages as followed : complete functions , perfectperformance , portability , high - reliability , low cost and so on 該儀器以16位單片機80c196kc作為核心控制器件,采用同步采樣法測量理論及實時數(shù)據(jù)處理方法,具有功能齊全、可靠性高、性能價格比高、便于攜帶等優(yōu)點。
Based on 80c196kc single - chip microprocessor ac sample system , this paper especially analyses various factors that influence the precision of half - cycle fournier arithmetic , makes improvement on many ways such as arithmetic , frequency measure , sample step partition , sample synchronization , a / d conversion , anti - jamming and parameter calculation , and finally provides applied hardware chart and software flow chart 摘要結合80c196kc單片機交流采樣系統(tǒng),著重分析了影響半波付里葉算法精度的各種因素,并在交流采樣算法、測頻、采樣步長劃分、采樣同步、單片機a / d轉換、抗干擾以及參數(shù)計算等方面提出了改進,給出了實用的硬件圖和軟件流程圖。
A novel measurement and control system ( mcs ) used in hv flameproof switchgear has been established based on the 80c196kb single - chip microprocessor , by which electrical faults such as short circuit , over - load , over - voltage , open circuit , earth leakage and so on can be automatically distinguished and processed , and with the exception of this , the insulation degree of the double screen cables is monitored on - line . the operating condition and fault parameters can be displayed in turn with liquid crystal display 該系統(tǒng)能自動判斷短路、過載、過壓、欠壓、漏電等故障,并對高壓電纜的絕緣水平進行實時監(jiān)測,大屏幕液晶顯示器實現(xiàn)了電太原理工大學碩士學位論文網(wǎng)參數(shù)的輪流顯示,通過撥碼盤輸入系統(tǒng)各項整定參數(shù),真正實現(xiàn)了保護系統(tǒng)數(shù)字化。
The system consists of an at89c51 single - chip microprocessor and interface circuits . when visitors or audience come near , the sensor will detects them and the system plays the commentary what is recorded in advance and in the same time , a special chip controls the lights from dark to light changing slowly . when no visitor there the lights become dark automatically , the energy - saving is achieved 該系統(tǒng)以89c51單片機為控制核心,利用熱釋電傳感器自動探測是否有觀眾走近觀看,通過軟件模擬spi通訊協(xié)議控制單片語音錄/放芯片播放錄制好的解說詞,同時控制燈光控制芯片控制展臺的背景燈光的暗、亮,達到節(jié)能效果。