Design And Realization Of On-line Monitoring System For Aquaculture Water Quality

In recent years,the booming economic development of China has led to increasingly serious environmental pollution,especially the aquaculture industry,a series of problems arose such as water pollution,decline of aquatic product quality and so on.The water quality of aquaculture environment will directly determine the quality of aquatic products.The traditional methods of water quality testing are sampling inspection and patrol inspection,but their disadvantages are low detection accuracy,long inspection time and high cost,etc.Therefore,in terms of the current scale of aquaculture,it is imperative to use modern science and technology to accurately and rapidly monitor water quality.The online monitoring system of aquaculture water quality designed in this dissertation is mainly composed of data acquisition module,data processing module,data communication module and monitoring center,etc.The data acquisition module includes p H sensor,dissolved oxygen sensor and temperature sensor to realize water quality acquisition;The data processing module converts it into digital signal through A / D conversion module and sends it to MCU and other integrated chips to process and store the data;The data communication module includes the n RF24L01 module and the GPRS communication module to realize the data communication between each node respectively.The SIM800 C chip is adopted in the GPRS communication module to meet the real-time requirements of the system;The monitoring center uploads the processed data to the cloud server for storage through TCP protocol,and users can view the historical records through the computer or mobile phone anytime and anywhere.The aquaculture water quality online monitoring system designed in this dissertation uses single chip microcomputer and other integrated chips,adopts p H sensor,dissolved oxygen sensor and DS18B20 temperature sensor to collect data,combines wireless transmission,wireless communication technology and big data analysis based on cloud computing,and solves the problem of aquaculture water quality monitoring.The design has the following characteristics:(1)support multi-channel sensor synchronous acquisition,and can monitor the water quality of multiple nodes at the same time,realize the full coverage of the aquaculture area;(2)it can send the collected p H value,dissolved oxygen value and temperature value to the user in real time,and the user can view the monitoring data at any time through the computer or mobile phone,which realizes the human-computer interaction;(3)the monitoring data can be stored in real time,and farmers can view historical monitoring data at any time,so as to facilitate users to summarize water standards suitable for aquaculture.