Research On Environmental Information Collection And Early Warning System Of Greenhouse

Agricultural economy occupies a dominant position in China’s economy,so improving the quality and yield of crops has become the main way to improve the economy.There are two main factors that affect the growth and development of greenhouse crops.One is the environmental factors inside the greenhouse,such as temperature,humidity,light intensity and carbon dioxide concentration.Secondly,in recent years,crop diseases and insect pests frequently occur in greenhouses,which seriously affect the quality of crops and thus lead to reduced production.However,the environmental information in the greenhouse is the main factor leading to the diseases and pests in the greenhouse.Therefore,the improvement of the monitoring capacity in the greenhouse has long been the focus of attention in the fields of computer and information technology.In addition,a large amount of wiring is required to monitor various environmental parameters in the greenhouse,which increases the construction difficulty and makes system maintenance difficult,which brings great inconvenience to agricultural production and greenhouse temperature.The high humidity and the high humidity environment characteristic put forward the higher request to the monitoring system reliability,only USES the single chip microcomputer to carry on the control and the management is difficult to meet the actual agricultural production demand.In order to solve the greenhouse monitoring a large number of wiring and greenhouse temperature and humidity characteristics,this paper USES the agricultural Internet of Things wireless sensor equipment and high precision high temperature and humidity sensors to solve the wiring complex and system instability.In order to solve the problem of improving crop yield and quality,a labview-based environmental parameter collection and early warning system was designed for greenhouse greenhouses.This article selects the tomato crops of greenhouses as the research object,the article environmental information collection part adopts temperature sensor,humidity,light intensity and CO2 concentration are collected,wireless sensing devices to transmit to process the data collected to LabVIEW PC interface,through the data on the screen and curve can clear for different periods of environmental information.The main interface of the system includes not only the collection of environmental information,but also the function of early warning.The warning in this article includes two aspects;One is when the environmental parameters in the greenhouse temperature,humidity,light intensity and carbon dioxide concentration is not suitable for a certain period of tomato growth and development in a timely warning;Second,when the environmental parameters in the monitored greenhouse may induce certain diseases or insect pests of tomato crops,timely early warning will be given.For tomato crops at different times by different need of greenhouse environment parameters,we can the design of the interface to adjust the way of greenhouse environment variables on the lower limit value,you can set different in different growth period of tomato crops environment parameters,when environment variables beyond the scope of early warning in time,this paper use ID3 algorithm to generate the decision tree to establish rules of the knowledge of the diseases and insect pests.In this paper,LabVIEW software is also used to design an expert system for the diagnosis and control of crop diseases and pests in greenhouses.To facilitate the use of greenhouse managers.