Design And Implementation Of Aquaculture Information Management Platform Based On LoRa Technology

With the great progress in science technology and the development of modern information technology,aquaculture industry in our country has gradually gotten rid of the artificial breeding mode and transform to industrialization and intensive mode.This tendency makes the modernn information management in aquaculture become the emphasis of research.Compared with the traditional aquaculture model,application of modern information management in aquaculture can precisely detect and control the environmental parameter of fish pond and build the most suitable environment for fish,which makes aquaculture achieve stable and high yield and quality.However,most of the aquaculture enterprises in our country still use manual empirical management methods,which has a low standardized production and some problems in timeliness and reliability.Currently,most management systems of aquaculture transfer data through ZigBee technology,which restricts the management area of aquaculture management systems because of its short transmission distance.Although the transmission distance can be extended through networking,the free networking between nodes makes the algorithm implementation complex and difficult to manage.Consumption of transmission between nodes is also high.The emergence of LoRa makes wireless transmission technology a wide range of coverage and low power consumption become a reality.LoRa's base station transmission range can reach 15km.In addition,the LoRa module is more power-efficient than the ZigBee module,and it communicates directly with the base station,making the algorithm easier to implement.In view of the fact that China's aquaculture informatization management is relatively backward,resulting in low productivity of aquaculture production,this paper designs an information management based on LoRa wireless transmission technology,which provides information transmission channels,back-end database management and client information exchange functions for real-time monitoring and automatic control of aquaculture environmental information to improve aquaculture efficiency and information level.The main research work of this article is as follows.(1)Design of the overall system framework.I have completed the overall architecture design about the information management system based on LoRa wireless transmission technology according to customer's requirement that they need to manage specific fish ponds in specific area.The field layer includes sensors,control devices,LoRa nodes,and LoRa base stations,while the data interaction layer includes cloud platform,middleware,database,and web server.There are Android and Web clients and administrator system in application layer.(2)Database construction based on aquaculture farmers.The database information mainly includes user information,regional information,farm node information,acquisition parameter information,status information,and control information.Such a database design can meet the requirements of users for accurate recording,display,control of data information.It can also ensure the storage efficiency of data and make system data maintenance and retrieval easier.In addition,the components of the database can provide the basis for subsequent data analysis and research.(3)Design of communication front-end machine.Communication front-end machine is mainly responsible for data interaction with cloud platform,client and database.The communication process is as follows.Firstly,it receives nodes parameter information from cloud platform through TCP/IP protocol and analyze the data which will be deposited into the database then.Secondly,it communicates with Android and Web customers through Http protocol.In this section,communication front-end machine mainly packs the control data sent by clients and transfers it to cloud platform.At last,it shows corresponding information to customers according to clients' requirements.(4)Design of Android and Web clients.Both Android clients and Web clients can look over the specific location of the breeding base,view the parameter information of every node and control the statements of all devices that can be controlled.In addition,Web clients can receive the announcement published by manager.Android clients can also set the upper and lower limits of the dissolved oxygen value,data collection frequency and timed feeding of the farm nodes.Compared with the traditional aquaculture water quality monitoring method,the system can manage information in specific areas and specific breeding points conveniently through two ways.(5)System test.We have done experiments in Nanjing Agricultural University experimental demonstration base.Aquaculture information management system has also been tested on mobile phones and websites respectively.Devices tested in field include temperature sensor,dissolved oxygen sensor and aerator.The experimental results show that the whole system runs stably,and it can realize the data collection of specific nodes and the control of the aerator.The wireless packet transmission process has low packet loss rate and high transmission efficiency.It can increase oxygen by opening the aerator in the client.It is also possible to achieve automatic oxygenation by setting the upper and lower limits of dissolved oxygen,which has good practical value and application prospects.