简介:ThispaperpresentsanautomaticcomputertablebasedonSTC89C52MCU,theheightandangleofthedeskcanbeadjustedbyMCU.ThecomputerdeskcanalsobeconnectedwiththeBluetoothofthemobilephonethroughtheMCUtorealizethewirelessremotecontrolandadjusttheheightandtheangleofthedisplayscreenofthecomputerdesk.Accordingtoman-machineengineering,thedesigncanmeettheneedsofdifferentadultpopulationsforcomputerdisplayheightandanglerequirements.Thedesignofthecomputerdeskcanmeetthedailyneedsofpeopleintheoffice,andcaneffectivelyreducethepainofcervicalspondylosis,lumbarpainandothersymptoms,whicharecausedbylongworkinghours.Thecomputerdeskcanimproveworkefficiency,strongpracticability,highperformancepriceratio.
简介:拨号进程音(CPT)信号在数字通信及其他方面有着广泛的应用.将CPT信号的产生与检测集成到含有微控制器(MCU)的系统中,是一项较有价值的工程应用.本文首先介绍CPT信号的发生,并集中讨论对该信号的检测,然后给出在飞思卡尔公司MCF5249Coldfire微控制器上的实现方案,最后给出Matlab的仿真结果,以检测CPT信号发生器及检测器的正确性.