| As the rate of environmental degradation accelerates,the pressure on the human living environment is increasing.Forests have the functions of water saving,wind and sand prevention,climate control and air purification,which are very useful for improving human living environment.With the current situation of land desertification and forest area reduction speeding up in China,it is urgent to adopt ecological protection measures for forests.It is of great significance to study forest ecological environment monitoring systems.In recent years,the Internet of Things technology and sensor technology have made great progress,and products based on the Internet of Things technology have also penetrated into all aspects of people’s lives,bringing great convenience to people’s lives and improving people’s living efficiency and quality of life.Taking the Guizhou forest scene as the research background,the thesis designs a complete set of Internet-based forest ecological environment monitoring system including perception layer,network layer and application layer.(1)In the perception layer,through the selection of MCU and various hardware;the power supply circuit is added during the circuit design,so that it can only supply power when the module is working;the IO and clock of each peripheral device are coded in the software Strict control is performed to reduce the power consumption of the entire system and extend the life of the battery.(2)LoRa low-power wide area network communication technology and 4G communication technology are used in the network layer.The core of LoRa technology is data transmission.Therefore,when networking,it is necessary to define the format of the data packet,and then to achieve the data communication from the sensing node to the gateway through the business logic implemented by the communication protocol.The data transmission task between the gateway and the server must be completed through 4G communication technology.(3)The application layer is mainly to solve the too troublesome way of entering the URL through the browser every time you view the data,and a forest environment monitoring APP is designed on the Android client.As long as the APP is installed on the Android phone,viewing the monitoring data is as simple as clicking The icon of the forest environment monitoring APP can enter the monitoring data webpage,which is convenient and fast. |
