基于AT89C52的智能水温控制系统设计

为解决传统水温控制系统在水温控制方法、智能化及精确度方面的不足,提出了一种以AT89C52单片机为核心的智能化水温控制系统。该系统采用数字温度传感器DS18B20实时采集温度数据,并通过AT89C52单片机控制继电器,实现对水温在40℃~90℃范围内自动控制,以保持设定的温度基本不变,其精度为0.1℃。实验结果表明,该系统超调量小,温度上升快,精度高,易于实现,具有一定的实际应用价值。     

基于单片机的水温控制系统

本文介绍了基于单片机AT89C51的水温控制系统的设计方案与软硬件实现.采用温度传感器DS18B20采集温度数据,共阴极LED显示温度数据,按键设置可设置预置水温温度,当采集的温度低于设定值时,单片机启动电炉加热器加热,当温度等于或高于设定值时,单片机停止电炉加热器加热.能够实现最小区分度为1℃的水温控制.给出了系统的总体框架、各部分电路设计、总电路设计、程序流程图.     

土工布渗透仪温度监控系统

在测量土工布水平渗透系数时,为了减小因水温变化引起的测量误差,设计了水温监控系统。利用单片机控制DS18B20对温度信号进行采集并通过串口与PC机进行通信,上位机利用Visual basic6.0开发温度监控系统界面,实现显示温度、绘制曲线、数据库管理等操作功能,以及在温度超限时做出报警,并利用继电器开关启动升降温设备实现温度的控制。通过实验室模拟水温测量,可以达到预定的精度0.01℃。并能实现数据库连接、查询、显示、绘制曲线等功能。该系统基本满足渗透系数测试时,对水温实现稳定可靠、精度较高、抗干扰能力较强的控制要求。     

基于AT89C52的水温控制系统

系统以AT89C52单片机为控制核心,单线数字温度传感器DSl8B20构成前置信号采集电路,过零检测双向可控硅输出光电耦合器MOC3041构成后向控制电路,利用分段PID控制算法,通过调功法对加热系统的水温进行控制,可在40℃到100℃范围内任意设定目标温度,静态误差小于0．2℃．     

基于MCS-51单片机的远程浴室控制系统设计

给出了一种可进行远程控制的浴室控制器方案,浴室控制器主要由单片机、A/D转换器和电磁阀组成,设计了单片机与PC机之间的串行通信电路等。设计以MCS-51单片机作为系统控制单元,结合系统硬件电路设计和软件设计实现对电磁阀和A/D转换器的控制,从而实现对水温及浴池放水时间的控制。     

游泳池恒温控制系统建模与仿真

本游泳池恒温控制系统选用AT89C51单片机作为控制器,利用PID和PWM技术实现对游泳池的水温控制。该控制系统主要由CPU主控制模块、主电源模块、键盘处理模块、温度采集模块、继电器控制模块及LED显示模块构成。DS18B20用来采集温度信号,其体积小,精度高,适用电压宽,抗干扰能力强。继电器控制两台电机的转动,分别对应控制热水阀和冷水阀,从而,实现水温的实时控制。最后,采用共阳极数码管LG5641A动态显示水温。     

基于LabVIEW的PID水温控制系统

针对实验室化学类仪器仪表需对参与反应的混合溶液进行恒温控制的需求,设计了实验室水温控制系统。该水温控制系统以DS18b20传感器为温度测量工具,51单片机为处理器,LabVIEW语言为上位机设计语言。实验结果表明该系统达到了预期的温度控制效果,可快速确定当前环境下的P、I、D参数,实现了参数的整定。系统充分发挥了上位机和下位机的优势,可观测实时采集数据结果,便于对结果进行分析,相比传统的单片机控制更加简便高效。     

水温控制系统的实践

由于单片机的精确控制能力,在许多领域得到了广泛的研究和应用,在这里,我有这样一个设想,运用单片机结合AD590传感器的性能,设想实现水温控制系统。其中包括了温度检测,加热控制,数据显示等功能。     

水温加热控制系统的设计

加热控制系统是以MSP430单片机为核心,通过一定的人机交互实现水箱水位和温度的控制。利用定时器实现系统的定时加热;使用不同数目的加热棒实现功率的调节;使用温度传感器LM35H采集数据,经A/D转换后把数据传送给单片机,控制水箱的温度;利用浮球、磁电开关、电磁阀控制水箱水位。测试结果表明,所研究的水温加热控制系统具有操作效率高(简便),性能可靠、设计要求达标等实用价值。系统实用性强、适用范围广。     

基于单片机的水温自校正控制系统设计与研究

介绍了基于单片机的水温控制系统的构成。并针对水温控制过程中的纯滞后问题提出了一种自校正PI控制器的设计方法。     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?     

Western and Eastern culture differences in commercial field

The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity.     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.     

浅谈移民问题

Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.     

风的曲线

Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose.     

Sister Carrie, an Adherent of Desires

Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities.     

Improvement of one-cycle controller by use of proportional integral differential controller

1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec…