摘要：沼气能源是解决目前农村能源的最佳途径。然而，目前沼气发酵过程中存在诸多亟待解决的问题,其中反应器温度的不稳定性一个重要问题。目前，国内大多采用常温发酵工艺,该工艺方法很容易受到环境因素的制约,特别是在有些季节甚至会停止产气。所以为沼气池发酵提供一个理想的温度环境是目前沼气发酵中急需解决的问题。目前利用太阳能对反应器进行温度控制的方法比较理想,然而该工艺也同样受环境因素的制约,不能完全为发酵过程提供理想温度环境。
本课题从该问题点出发,设计基于单片机的温控系统方案作为电能温湿度控制的辅助装置,实现反应器的理想温湿度环境。该课题首先分析了该系统的设计要求和技术指标,确定系统的总体方案。然后考虑到经济性能及体积因素,深入研究和选择了各种芯片和元器件,该设计能够实现温度的实时检测、显示和控制输出,使温湿度值保持在理想的范围内，并具有和上位机通讯,多点监测等功能。
关键词：沼气 智能 单片机 温控系统 上位机
ABSTRACT：Biogas energy is the best way to solve rural energy. However, the biogas fermentation process, there are many problems to be solved, the reactor temperature instability is the need to address an important factor. At present, most of the room temperature fermentation process, the process is constrained by environmental factors, in some seasons even stop the gas production. So provide an ideal temperature for methane fermentation environment is a the methane fermentation pressing problem. Ideal solar heating reactor, However, this process is also affected by environmental factors, and can not fully provide the desired temperature environment of the fermentation process.
This topic issue from the point of departure, the design temperature control system based on single chip solution temperature and humidity control as an auxiliary power unit, to achieve the ideal reactor temperature and humidity environments.The subject first analyzes the design of the system requirements and technical specifications, determine the system's overall program. Then consider the performance and size of the economic factors and selection of in-depth study of various chips and components designed to achieve the temperature of the real-time detection, display and control output, the temperature and humidity values in the desired range, and has the upper machine communication, multi-point monitoring and other functions.
Keywords: Biogas；Intelligent；MCU；Temperature control system；Position Machine
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