Development On Dual-Frequency Fishfinder Display And Control Software

As a device to help fishing, fishfinder can effectively detect and locate the underwater fish school. Dual-frequency fishfinder display and control software provides real-time, accurate datas for the operators.It can also help the fishermen to search accurately and track fish school initiatively. It reduces the difficulties and improves the efficiency greatly.First,this article analysies the echo characteristics of the fish to study the graphic display technology, and provides intuitive and realistic graphics for the fishermen.Second, the dual-frequency fishfinder software is designed based on the Visual C++ 6.0. ActiveX is used for the serial communication between PC and signal processing board. It can achieve equipment check, parameters setting,real-time control.Designing a new data storage structure to meet the needs of datas growth.Using multi-thread technology to deal with the three threads (communications, display and control, alarm) for sharing of the CPU. Designing a software workflow mechanism to response the input based on windows message mapping and writing a document to instruct the users.Achiving data storage by ADO, the database is Access.Developing a set of software to provide test environment for the software.Dual-frequency fishfinder display and control software meets the needs of the project, and achieves the functional requirements and interface design.Adding automatic and manual functions to remove outliers. Designing three modes including high-frequency, low-frequency or high-low frequency in displaying.Using a variety of ways to achieve alarm function including light,text,sound. Doing a lot to make the software more friendly such as font,color and so on.