基于ZigBee技术的食用菌温室大棚管理系统的设计

发布时间：2018-11-22 16:54

【摘要】：随着我国社会经济水平的快速发展,国人的温饱问题已基本解决。养生理念也就逐渐深入人心。现代养生理念倡导,一荤一素一菌,这俨然表明了菌类营养对我们的重要性。食用菌具有很好的保健功能,主要有抑制肿瘤活性、增加免疫力、降血脂,血糖等。食用菌越来越受到人们的喜爱和关注。我国对食用菌的需求量较大,然而目前我国的食用菌养殖普遍存在出菇率偏低,产量小等现象,因此食用菌的养殖迫切需要科学的养殖手段提高产量。食用菌种类繁多,每种食用菌对生长环境的需求不同,同一种食用菌在不同的生长时期也有不同的环境需求。这就需要我们根据不同菌类的生长环境采取相应的调控设置,使温室大棚达到最适宜菌类生长的环境,使食用菌的产量达到最大化。影响食用菌生长的环境因子有温度,湿度,CO2浓度,光照等,其中主要影响是温度和湿度,温度的变化会导致湿度的变化,同样湿度的变化也会导致温度的变化,两者之间具有耦合关系,因此很难建立精确的数学模型。在本系统中引入了温湿度模糊解耦的控制方法,通过对模糊解耦控制器的设计解决了温湿度之间的耦合问题,使温湿度的控制更加精确。本文设计了基于ZigBee无线网络的监控系统,利用无线网络传感技术监控食用菌温室大棚内的生长环境。终端节点负责采集环境参数并通过ZigBee网络传给协调器,协调器在将数据通过串口传给上位机,上位机控制系统根据收集到的信息确定各调控设备的状态及开启的时间。温室大棚使用的材料是塑料薄膜,若不加注意容易引发火灾,造成严重损失。基于此本系统加入了MQ-2气体传感器,可对易燃气体,烟雾等进行预警,对温室大棚进行安全保护。本系统采用CC2530芯片,具有低功耗,可操作性强等优点。传统的有线传输数据布线麻烦,操作起来不方便。通过构建ZigBee无线通信网络传输可以很好解决上述问题,不仅可以快速准确的传输数据,还可以建立节点网络,从而实现对整个温室大棚的监控与控制。
[Abstract]:With the rapid development of China's social and economic level, the problem of food and clothing has been basically solved. The idea of keeping in good health is gradually gaining ground in the hearts of the people. The modern concept of health promotion, one meat, one vegetable, one bacterium, which shows the importance of fungus nutrition to us. Edible fungi have good health care function, mainly inhibiting tumor activity, increasing immunity, lowering blood lipids, blood sugar and so on. Edible fungi are more and more popular and concerned by people. There is a great demand for edible fungi in our country. However, the mushroom production rate is on the low side and the yield is small in our country at present. Therefore, the cultivation of edible fungi urgently needs scientific cultivation methods to improve the yield. There are many kinds of edible fungi, each kind of edible fungus needs different growth environment, the same kind of edible fungus also has different environment demand in different growth period. Therefore, it is necessary for us to adopt corresponding regulation and setting according to the growth environment of different fungi, so that the greenhouse can reach the most suitable environment for the growth of fungi, and the yield of edible fungi will be maximized. The environmental factors that affect the growth of edible fungi are temperature, humidity, CO2 concentration, illumination and so on. The main effects are temperature and humidity. The change of temperature will lead to the change of humidity, and the change of humidity will also lead to the change of temperature. There is a coupling relationship between the two, so it is difficult to establish an accurate mathematical model. The fuzzy decoupling control method of temperature and humidity is introduced in this system. The coupling problem between temperature and humidity is solved by the design of fuzzy decoupling controller, which makes the control of temperature and humidity more accurate. The monitoring system based on ZigBee wireless network is designed in this paper. The growth environment of edible fungus greenhouse is monitored by wireless network sensing technology. The terminal node is responsible for collecting the environmental parameters and transmitting them to the coordinator through the ZigBee network. The coordinator transmits the data to the host computer through the serial port. According to the collected information, the control system of the upper computer determines the state and the time of opening of each control device. The material used in greenhouse is plastic film, which can easily cause fire and cause serious damage. Based on this system, MQ-2 gas sensor is added, which can warn flammable gas and smoke, and protect greenhouse safely. This system adopts CC2530 chip, which has the advantages of low power consumption and strong maneuverability. The traditional wired transmission data wiring is troublesome and inconvenient to operate. The above problems can be solved well by constructing ZigBee wireless communication network. Not only can the data be transmitted quickly and accurately, but also the node network can be set up, so that the whole greenhouse can be monitored and controlled.
【学位授予单位】：曲阜师范大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP315;TN92

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