Development Of Environmental Monitoring System For Deep-sea Cage Cultivation Area

People’s demand for seafood has increased year by year,and many fish have been drastically reduced due to overfishing,causing immeasurable damage to the marine ecology.In this context,the Chinese government has put forward a fishery development strategy of "maintaining mainly" since the 1980s,which has also driven the development of the emerging industry of deep-sea cage aquaculture.However,the current cage aquaculture industry still has problems such as improper supervision and backward technology,which not only pollutes the marine environment and affects the quality of marine aquaculture products,but also if it encounters natural disasters such as typhoons or steals by criminals,it is likely Farmers caused very large losses.In response to the above problems and combined with actual needs,this paper designs a deepsea cage culture area environmental monitoring system based on LoRa networking and 4G transmission.The system consists of a main monitoring point,a water quality monitoring node,an image monitoring node,a wireless transmission network and a remote The monitoring terminal software consists of four parts,which are used for real-time monitoring of data such as water quality,weather,images,and equipment operating conditions in the breeding area,and provide remote control functions to facilitate users to control equipment,while adopting low power consumption mode to reduce system power Consumption,play a role in prolonging the service life of the battery.This article first introduces the overall design of the system,and analyzes the current mainstream wireless transmission methods.Then the system hardware design and implementation are introduced in detail.The system hardware mainly introduces the main control circuit board,water quality sensor,weather sensor,image acquisition module and communication module.Its core controller uses the STM32F103RCT6 chip;the system software is divided into embedded software and remote monitoring terminal software,embedded software mainly realizes data collection,transmission,and low-power processing,etc.,remote monitoring terminal software realizes data display,analysis,storage,and provides remote control functions.Finally,the system function was debugged.Through the functional testing of each module,the joint debugging test in the laboratory and the field test,it is confirmed that the system can realize the real-time data collection and long-distance transmission.The water quality data collection error is within 0.78%,and the low power consumption mode is adopted.System energy consumption is significantly reduced.The remote monitoring terminal software runs stably,and all functions such as data display and storage are normal.In addition,the system is simple to install and maintain,has good fault tolerance,and low cost of use.It has good practicability for environmental monitoring of offshore fishing grounds and is worthy of popularization.