文档介绍：学位论文的主要创新点一、针对传统温湿度控制均采用普通模拟电路温湿度控制技术,本文提出了采用Fuzzy-PID控制器和PID控制算法分别对培养箱温度和湿度进行控制,具有超调量小、调节时间短、精度高、系统稳定性好、可操作性高等特点。摘要医用细菌培养箱具有加热和制冷双向调温系统,是一种用于微生物、细菌、细胞培养的医学及生物实验设备。本文根据培养箱在国内外的发展状况,针对温度和湿度参数在控制过程中存在的问题,设计一套精度高稳定可靠的智能控制系统。本设计在控制方式上采取温度,湿度相对独立控制。对于湿度控制采用传统 PID控制算法。对于温度控制采用模糊控制器与PID控制器并行工作的策略,既提高了精度,又消除了极限环振荡,从而使两者的优点得以充分发挥,实现最佳控制。本文设计中选择以ATmega2560单片机作为主控芯片,系统中包括液晶显示、键盘控制、声光报警、数据下载等功能。在硬件设计中通过对本设计的技术指标介绍选取了满足设计指标需求的主要元器件,并对这些元器件的功能和特点进行了介绍。通过对系统性能测试证明了该设计在温湿度控制中能达到使温度保持恒定在设定值,控温范围:0℃~50℃,温度波动±℃,℃:湿度控制范围:50%附卜95%RH,湿度波动:±5%RH;本设计遵循可靠性高、实用性好、调试便利的原则。有利于降低成本和能耗,适合在生物医学实验室实际应用和推广。关键词:温湿度控制;恒温恒湿:PID控制:模糊控制 Abstract Themedical bacterialincubatorhasbi—directionaltemperature controlsystem of cooling and is alaboratory—equipment inmedical andbiological fields, which isused to culture microbes,bacteria and paper indicates the development ofhome and aboard and present research ofthe incubator intelligent controlsystem forconstanttemperature· attheproblems incontrol oftemperature and humidity parameters,a intelligent controlsystem withhigh precision andreliability isdesigned. 砀esystem supports theindependent control oftemperature humidity iscontrolled by traditional PID control temperature is controlledby theparallel control system withfuzzy controller and PID notonlyimproves uracy,but alsoavoidance ofthelimit boththeadvantages aregiven full. Inthedesign ofthisarticle chose toATmega2560 single-puter as themaster features ofthissystem includes LCD,Keyboard control,sound andlightalarms,datadownload, totheintroduction ofthe technical indicatorsinthisdesign,we selecte ponents which meettheneedsofthe specifications inthe hardware design while we introduces the features and ponents. Itvalidates thecorrectness,feasibility and reasonableness ofthesystem solutions through the testandperformance analysis temperature will be maintained atbetwe