| With the development of computer technology,big data,cloud computing,and Internet of Things technologies are widely used in various fields,and all walks of life have entered the transitional era of combining industry and information.As the basic industry of the national economy,agriculture supports the construction and development of the national economy.Therefore,the intelligentization of agricultural information is the direction of China’s current agricultural development.Precision agriculture is a product of the combination of agriculture and information data.Through 30 years of development,precision agriculture technology is very mature.China’s agriculture is facing a severe situation in which the number of employees in the primary industry is decreasing year by year and the loss of cultivated land.“Precision agriculture” has become a domestic agricultural transformation.The direction of the upgrade.The precision agriculture system is based on the growing environment of crops such as farmland soil conditions,and rationally allocates and allocates various resources to crops to achieve optimal agricultural output.The typical application of precision agriculture-the agricultural information monitoring system has begun to be put into use in crop planting and aquaculture,but the information monitoring system currently put into production has more or less defects that need to be improved.Based on this background,and the defects of crop safety protection are frequently exposed,the quality of crops has received much attention.This article proposes a farmland information monitoring system based on LoRa-based low-power wide-area Internet of Things(LoRaWAN)technology,which realizes farmland planting through IoT sensor technology and big data technology.Users can remotely monitor crop growth information anytime,anywhere.This article carefully analyzes the current status of precision agriculture research,summarizes the advantages and disadvantages of various information monitoring systems that have been put into production,and conducts research on hardware design,software design,power supply design,structural design,etc.,and successfully develops a precise agricultural farmland information monitoring system:1.Hardware design: The hardware design mainly includes the node and the gateway: the node is composed of the main controller,the communication module and the sensor,and the gateway is composed of the main controller and the communication module.Considering the development cost and maintenance cost,a low-power,high-performance hardware framework was designed;a number of low-power,high-precision sensors suitable for agricultural monitoring scenarios were selected.2.Power supply design: Select solar panel and battery combination as the power supply.According to the actual situation of the pilot area of the system,refer to the solar radiation parameter table of major cities in China,and design the power supply scheme using the scientific solar panel design method.At the same time,considering the equipment scalability of the monitoring system,the power of the solar panel is greater than the actual working peak power.3.Structural design: Considering the particularity of the farmland monitoring environment,a waterproof box was selected for the hardware equipment,and a louver waterproof box was selected for the sensor assembly module.Considering the influence of relative position on the data collected by the sensor,the sensor assembly sequence is also scientifically designed.An easy-to-install and lightweight European-standard industrial aluminum profile has been selected for the entire equipment frame.4.Software design: The software code of data acquisition focuses on the readability and maintainability of data collection;explains the network access principle of nodes and gateways and introduces the network access process;introduces the shared server LORIOT;details the user server The construction process.5.Humanized design: This system considers the experience of farmland growers and develops a series of humanized designs.Based on the above,the LoRaWAN-based farmland information monitoring system was successfully built and put into practical agricultural production activities.The long-term operation proved that the system can be used stably,which laid the foundation for the self-feedback regulation and research of precision agriculture in the future. |
