The Design Of Collection And Analysis Of Water Quality Parameters Of Unmanned Ship

With the common development of China's cities and industries,the degree of water pollution has gradually increased.Aiming at this problem,this paper designs and develops the unmanned ship water quality parameter acquisition and analysis software system as the shore-based software system group of the unmanned ship water quality online monitoring platform.The software system realizes the integration of water quality online monitoring,water quality assessment and data storage process,and provides data analysis and management technical support for the unmanned ship water quality online monitoring platform.The main contents of this paper are as follows:1.Extract water quality data and perform data analysis.Based on the CAN2.0B protocol and its application layer protocol SAE J1939 protocol,a unified communication protocol is established to establish a stable communication connection with the water quality sampling unmanned ship to ensure successful reading of the data stream.According to the specified data frame structure,the water quality data is extracted from the data stream,and the extracted water quality data is transformed and processed according to the requirements of the accuracy of the water quality data.2.Water quality rating.This paper proposes an improved BP neural network algorithm,which overcomes the shortcomings of slow convergence and local minimum.It is applied to the software system proposed by the paper,and the nine water quality data extracted as input.Evaluation of water quality grades.3.Storage and inquiry of water quality data.The Access database is associated with the design and development of the storage table,and all relevant data of the path point and the corresponding water quality evaluation level are stored in the database table,and the query path is provided on the system interface to realize the function of searching the query by time.4.Data display and interface design.Overall planning and design of the software system interface to ensure the smoothness and stability of the software system in use.Bind each data to the display control of the system interface to complete the real-time display of water quality data.The unmanned ship water quality parameter acquisition and analysis software system was applied and tested in Changtan Reservoir of Taizhou City.During the test,the water quality data display function,water quality evaluation function,water data storage and The queries are all implemented as expected.