Design Of Grassland Environmental Condition Monitoring System Based On Android Mobile Terminal

For a long time,the frequent occurrence of locusts in the central and western Inner Mongolia has caused serious damage to local animal husbandry production and grassland ecological environment,posing a serious threat to the production and life of farmers and herdsmen.Therefore,it is of great significance to carry out research on grassland ecological environment monitoring,and locust dynamic monitoring and early warning system.In this subject,an important problem is to master the relationship between the mechanism of locust outbreak and the surrounding living environment.It is a problem that must be solved to construct an accurate and convenient means of collecting and monitoring environmental state information.The grassland ecological environment condition monitoring system proposed in this paper is divided into three layers,namely the perception layer,the network communication layer and the application layer.The sensing layer uses ZigBee technology to build the collection network,and each node is connected to the sensor for collecting the living environment data of the locust.The node body is combined with the microprocessor STM32F103RBT6 and CC2530 module,and the CC2591 module is used to increase the communication distance of the ZigBee module.Thenetwork communication layer is composed of the Raspberry Pi 3 Model B development board,which realizes processing of data and camera data collected by the ZigBee network.The application layer is composed of Android mobile phones and servers,the network communication of the whole system adopts MQTT(Message Queuing Telementry Transport)protocol,so that the monitoring data can be transmitted in real time and the collected data can be stored in the MySQL database.The grassland ecological environment condition monitoring system designed in this paper can initially realize the remote monitoring of soil temperature,soil humidity,light intensity,air temperature,air humidity and grassland image information in the grassland environment,and store the environmental data in the cloud database.At the same time,the expansion port is reserved in the hardware design process to facilitate subsequent upgrade and function expansion of the system.