| At the present stage,our country’s river crab farming industry has gradually developed into the mainstream of the aquaculture industry.However,the current crab culture was mostly based on traditional artificial feeding methods,and there were a series of problems to be solved urgently,such as high labor intensity,low degree of automation,and extensive management.In order to achieve high-density aquaculture and refined management,this article designed and developed a remote monitoring system for aquaculture operation ships based on the cloud platform.The system used the current popular remote monitoring and trajectory planning technologies to monitor the working condition information of the workboat in real time and issue instructions to control operations,improved the production efficiency of river crab framing,and promoted the development of the automation process of crab farming industry.The main part of the monitoring system was operating on board ship by the client,cloud remote monitoring server and Android mobile client composed of three sections.The main research contents and results of this article are as follows:(1)Analyzed the domestic and foreign research status of unmanned work vessels,cloud platforms and remote monitoring systems.Carried out the overall design of the monitoring system based on demand analysis,explained the structure of system and its working principle,and introduced the cloud platform,Android system platform,TCP/IP network communication and other related technologies involved in the monitoring system.(2)The full coverage trajectory planning method of working ships was researched.The trajectory planning method of the inner spiral traversal method based on the Gauss-Kruger coordinate transformation method was described.The relationship between the throwing plate motor voltage and vibration motor voltage and throwing amplitude,the spraying of liquid medicine motor voltage and the flow rate of liquid medicine,the load cell voltage and the remaining of liquid medicine were determined through experiments,so as to achieve the effect of fully automatic and uniform spraying of liquid medicine and baiting.(3)The overall framework of the remote monitoring system for aquaculture operation ships was designed and developed.On the basis of the Android Studio development platform,the development of the Android mobile client has been completed using the Java language.Through the analysis of the overall requirements of the mobile phone client,the functions of data storage and analysis,data communication and remote monitoring were realized.Based on the cloud platform,the server was developed with multi-threading technology,and according to the design of custom data communication protocol format,the real-time and consistency of data transmission were ensured,and the communication function between the server and the database was realized.The functional design of hardware and software modules of the shipboard client was simultaneously to realize working condition data acquisition,data analysis and functional interaction.(4)On the basis that the hardware modules of the workboat meeting the experimental requirements,the overall debugging of the remote monitoring system was carried out.The experiment focuses on verifying the remote monitoring effect of the Android mobile phone client on the workboat.The experimental results showed that the system basically met the real-time and reliability requirements for monitoring and controlling of aquaculture operation ships. |