Plant diseases have a serious impact on the cultivation of crops. Plant diseases are mainly caused by the interaction of crops, pests, meteorological conditions, and cultivation and management measures. Among them, meteorological conditions are the key factors that determine the prevalence of pests. Temperature and humidity are the main meteorological factors affecting the infection of plant pathogens. However, for most fungal diseases, the size and duration of the plant leaf wetness are also important factors affecting the infection. Obtaining these meteorological data in a timely manner is the basis and prerequisite for studying the law of occurrence and development of plant diseases, establishing prediction models, and carrying out disease prevention and control. Foliar Humidity Sensor A portable temperature and humidity meteorological monitor that collects and records temperature, humidity, and leaf moisture. According to the data currently checked, China has no self-developed meteorological data recording device that can be directly used for the prediction and prediction of plant diseases. Scan WeChat to learn more about cutting-edge information: Combined Rice Milling Machine,Mini Rice Mill Machine,Portable Rice Milling Machine,Automatic Rice Mill Machine HUNAN JINSONG MACHINERY CO., LTD , https://www.jsricemill.com
The meteorological information collected by the leaf surface humidity sensor is temperature, relative humidity, and leaf surface humidity, which are respectively implemented using a temperature and humidity smart sensor and a leaf surface humidity sensor. The monitor requires working in the field. In order to ensure the measurement accuracy, the sensors used should have strong anti-interference ability. This is because: First of all, the SHT15 is a monolithic fully calibrated digital sensor with an I2C interface. It integrates a temperature and humidity sensor, a signal amplification circuit, A/D conversion, and an I2C interface into a single chip and has a digital output. The features of debugging-free, calibration-free, external circuit-free, and full-interchangeability make the sensor have ultra-fast response speed and strong anti-interference ability. Secondly, the sensor's default measurement temperature and relative humidity resolution are 14 and 12 bits respectively, and the measurement range is 0 to 100% RH and -40 to 123.8°C, respectively, to meet the needs of disease prediction.
The leaf surface humidity sensor designed in this paper has the characteristics of high reliability, high precision, easy installation, portability, and large storage capacity. The monitor is designed based on the prediction and prediction of plant diseases, but it can also be used in other occasions where the temperature and humidity are measured. The application prospect is very wide. 
Analysis of Application Design Advantages of Leaf Humidity Sensors