The Design And Realization Of The Underwater Acoustic Positioning Solution Platform Based On TL-5728

The traditional long-baseline buoy positioning system has the shortcomings of single function,difficulty in deployment and recovery,and unadjustable deployment depth of underwater acoustic receiving array elements.The improved long-baseline positioning system focuses on these shortcomings and optimizes them.As the core of the long baseline positioning system,the underwater acoustic positioning solution platform needs to have the functions of receiving,storing,forwarding and processing raw data.Based on the TL-5728 core board,this paper designs a set of underwater acoustic positioning solution platform suitable for the improved long baseline positioning system.The hardware circuit design,debugging and corresponding software program design are completed,and the actual test proves the underwater acoustic positioning solution.The practicality and stability of the computing platform.The hardware design of the underwater acoustic positioning solution platform mainly takes into account the functional requirements of the positioning system.The TL-5728 core board is used as the data transfer and processing center,and the peripheral circuits jointly realize its hardware requirements.The TL-5728 core board adopts the architecture of dual-core ARM processor Cortex-A15 and dual-core C66 x series DSP processor,which has the characteristics of small size,high performance and strong environmental adaptability.The use of high-speed,universal interfaces in the design of peripheral circuits not only improves the data throughput of the underwater acoustic positioning solution platform,but also ensures its compatibility with different acquisition units under the same system.On the basis of the hardware circuit design,with the corresponding software programming,the expected function of the underwater acoustic positioning solution platform is realized.Including serial communication,network communication,data packaging,storage,and IPC inter-core communication.Compared with the separation of the traditional control platform and data processing platform,which uses network communication to realize data interaction,this design integrates the two platforms on the core board,and realizes the ARM processor and DSP processor by means of communication between IPC cores.The data interaction between them is not only fast and stable,but also will not cause network congestion due to the shared network of multiple platforms,which will affect the overall function of the positioning system.Finally,through actual tests,the expected functions of the hydroacoustic positioning solution platform were verified,and the stability of the platform was verified by the high temperature environment test of the incubator.