The System Design And Implementation Of Data Acquisition And Storage Based On Submerged Buoy

The marine environment noise is not only a variety of marine acoustic systems background noise interference field, but also carrying a large number of marine information, so the noise study of the marine environment, whether in civilian or military, is a very important significance. This article is based on submerged buoy , while taking advantage of vector hydrophone, analog filter circuit, AVR microcontroller, A/D acquisition devices, CF cards, and serial communications equipment to build one of these hardware conditions, data acquisition and storage systems.Paper first full study of marine ambient noise collected on the system performance and power requirements, given the special environment in the marine data acquisition system working under the overall design of the program. Second, the response can be a long time unattended, it may remote control and communications and low power consumption of specific technical indicators such as hardware systems; system selected ATMEL's AVR microcontroller chip, low power consumption, as the core of the system Atmega 2561 the work of the module's main control unit, model-based CF card True IDE-based storage media, while the high-speed radio communication and serial communication devices are an important loop system communication equipment; according to the system's asked to select the appropriate device and design Draw a circuit diagram and PCB diagrams, thus making the circuit boards. Papers on the submerged buoy acquisition and storage system standard in the development of the problems encountered and the need to pay attention to a detailed analysis. In software design, first, start with the various functional modules, individual modules prepared by the working procedures, including: A/D acquisition, Compass and real-time clock and data read and data storage; from the A/D acquisition in order to write the data obtained sectors are stored on the CF card; and transmission based in part on the work of multi-depth measurements and the marine environment, the need, using a relatively mature technology, wireless network communications serial communications plus a joint communication.Paper concludes with a discussion of the problems encountered in system debugging and the corresponding solution approach, combined with pool and sea test data acquisition system performance, reliability, on-site testing; sea marine environment, noise, experimental evidence collection system to meet the design requirements, you can used in the field of underwater acoustic research and underwater acoustic engineering.