Research And Development Of Monitoring Software For Marine Controllable Source Electromagnetic Emission System Based On MVVM Mode

Marine Controlled Source Electromagnetic Method(MCSEM),as a branch of marine electromagnetic method,is especially suitable for the investigation of high-resistance anomalies such as deep-water seabed hydrates and oil and gas.As an important part of the marine controlled source electromagnetic exploration system,the marine controllable source electromagnetic emission system aims to establish a long-term,high-power time domain and frequency domain artificial electromagnetic field on the seabed.This design relies on the "Deepwater Double Ship Towed Marine Electromagnetic Exploration System Research and Development" project to develop a monitoring software for the marine controllable source electromagnetic emission system.The main function of the marine controllable source electromagnetic emission system monitoring software is to monitor and control the state of the marine electromagnetic emission system.The monitoring software uses C # language,uses WPF as the framework,and is implemented based on the MVVM design pattern.The hardware part of the marine electromagnetic emission system includes multiple modules,such as the power supply,main control,current,GPS,attitude and azimuth of the towed body,the altimeter and attitude and azimuth of the tailtag.Therefore,the monitoring software has designed the corresponding module class,connected with the hardware through serial port and network,and uses multi-thread technology to realize the data reception,processing,display and storage.The data display part includes various forms,such as text display,dynamic line chart display,dashboard display and three-dimensional model dynamic display.The three-dimensional model of the towed body and tailtag is dynamically displayed on the main interface of the monitoring software according to the received height,attitude and orientation data,which more intuitively reflects the towed state of the towed body and tailtag on the seabed.In addition,the monitoring software has designed a protocol string module as a TCP server to send the status information of the electromagnetic emission system to the client connected to the server.In order to cooperate with the debugging of the monitoring software,the data simulation software of the marine controllable source electromagnetic emission system has been developed.The data simulation software can simulate data according to the string format of each module of the hardware of the emission system and communicate with the monitoring software through the network.In addition,the data playback software for the marine controllable source electromagnetic emission system has been developed to playback the data stored by the monitoring software during the marine test.The playback software displays the relevant state data of the emission system in the form of a line chart,which helps us to compare horizontally and vertically.From November 9th to November 18 th,2019,the monitoring software of the marine controllable source electromagnetic emission system was successfully applied in the marine test of the "Deepwater Double Ship Towed Marine Electromagnetic Exploration System Research and Development" project.It is proved that the software is complete in function,safe and reliable,and can guarantee that the entire electromagnetic emission system can work accurately,efficiently and stably during the long-term electromagnetic emission operation.This design provides strong technical support for the further development of marine electromagnetic exploration technology.