Design Of Multi-channel Data Acquisition And Storage Platform Based On Zynq

With the development of human society,the resources on land are constantly being developed,and people’s demand for rich resources in the ocean becomes more urgent.In order to further explore the marine environment and study marine science,various sonar detection systems have emerged at the historic moment.The functions of detecting,identifying,and locating underwater targets can help people explore the underwater environment and creatures in unknown waters.At the same time,with the advancement of science,human beings are gradually deepening the exploration of various unknown fields in the ocean.Therefore,the requirements for the function of underwater detection systems have also been raised.This article mainly completes the design of a multi-channel data acquisition and storage platform based on Zynq on a vector target detection system,including hardware and software design.The hardware platform consists of two parts,analog and digital,and is divided into four unit circuits according to their circuit functions: receiver unit,analog-to-digital conversion unit,core control unit and power management unit.The receiver unit circuit is an analog part.The main circuit is mainly used to collect and condition underwater acoustic signals(including functions such as amplification and filtering).The digital part uses the AC7010(Zynq)core board as the main control board,supplemented by the core board peripheral interface circuits and modules.The conversion circuit is used to complete the data collection and storage function;the power supply of each part of the system is provided by the power management unit.The software part is composed of FPGA and ARM inside the Zynq core board.Complete the logic program design and clock management of each functional module on the FPGA logic side to achieve the functions of data acquisition,packaging,and buffering;complete the original data storage and network data transmission functions on the ARM program side,both of which pass the Zynq core board Internal AXI bus interface to complete the interaction of information and data;complete the data acquisition,storage,transmission and other functions of the detection system.After the design is implemented,the detection system function is verified,and the receiver ’s consistency,passband,and data acquisition function are tested in the analog part;the data storage function and network transmission function are checked in the digital part;it is concluded that all parameters reach the detection Technical indicators for system design.Finally,the function and stability of the system were further verified by the lake test data,and the working state of the detection system in the experimental waters and the areas worthy of improvement were observed.