| At present,most aquaculture farms still use the traditional way of artificial farming.The disadvantage of traditional aquaculture is that it relies too much on the personal experience of farmers.However,most aquaculture personnel have low education procedures,and there are many unscientific aspects in fish pond management.In particular,for some fish species with high economic value and demanding breeding conditions,fine breeding cannot be achieved.Therefore,it is of great significance to design a set of aquaculture monitoring system based on the Internet of Things to provide farmers with convenient,efficient and scientific breeding.In order to improve the management level of aquaculture,the paper designed a new aquaculture monitoring system based on the Internet of things to replace the traditional artificial aquaculture,and developed a set of aquaculture cloud monitoring system prototype.The whole monitoring system includes acquisition node,control node,gateway,cloud platform and wechat applets.The thesis mainly does the following work:Design water quality information acquisition circuit and oxygen pump control circuit.Against about fish in breeding process,the life activities of dissolved oxygen,pH,temperature parameters of the acquisition,design the dissolved oxygen measurement circuit,the pH measurement circuit,temperature collection circuit,increasing oxygen pump control circuit,realize the precise measurement and control of water quality parameters in the breeding,avoid low dissolved oxygen concentration of effect of fish and shrimp and crab normal growth.Design LoRa-GPRS gateway.The special geographical conditions of the wide water area of aquaculture farms lead to a large number of acquisition nodes,which require communication modes with low power consumption,multiple nodes and long transmission distance.Therefore,LoRa wireless communication technology is used,and GPRS technology is used for communication between gateway and iot cloud platform.The gateway hardware circuit mainly plays the role of data transfer.Software design.Using modular design program ideas,the actual control process in aquaculture process,design a number of different execution tasks,reduce the coupling degree of the program.The iot platform Lo RA-GPRS gateway selects to access is the most mature Aliyun IOT platform in the domestic market.The Internet of Things communication protocol adopts MQTT protocol with publish and subscribe mode as the core.The system uses wechat small program as the remote control end to realize the intelligent control of the farm.After the successful development,the monitoring system can carry on the function test and the performance test.The test results show that the system has complete function,can meet the requirements of aquaculture,and the accuracy of water quality parameters can meet the requirements of the industry,which can be popularized and applied. |