基于OMAP-L138的数据采集存储技术研究与实现

发布时间：2018-04-30 15:06

本文选题：数据采集 + OMAP　；参考：《哈尔滨工程大学》2013年硕士论文

【摘要】：水下目标探测系统在海洋资源勘探、国防建设等领域应用广泛，发展迅速。而现当今也经历着电子器件高速发展的重要时期，高性能信号处理器如雨后春笋般出现在我们的工作和生活中。研究如何将高性能的处理器应用于目标探测系统中，具有十分现实的意义。本文基于OMAP-L138硬件平台的数据采集存储技术的研究最终应用在水下目标探测系统中，实现了单通道数据采集、存储、网络控制等功能。本文的主要工作是在合众达公司的SEED-DEC138平台上实现对单通道数据的采集、存储等功能。首先，本文查阅了国内外厂商提供的硬件开发平台，结合本文研究的实际背景，最终选定了合众达公司的SEED-DEC138板卡作为软件开发的载体。并结合系统需要在水下独立工作的实际情况，解决了OMAP-L138处理器的启动方式、Bootloader等问题。其次使用OMAP的DSP端基于DSP/BIOS完成了利用EDMA同时实现数据采集，SD卡存储，，I2C总线控制，TCP/IP网络控制等软件开发工作。为了平衡处理器双核的任务量并充分利用处理器的硬件资源，初步研究了双核通信技术实现数据采集存储功能的方法。最后，对DSP端的软件设计进行了系统联调，联调后数据能够连续采集和存储，并能通过网络控制板卡工作状态和参数，达到预期目的。经过系统联调测试，软件设计满足系统设计要求并可稳定工作，系统运行正常。为后续的数据回放、更高级算法处理实验数据提供了便利。
[Abstract]:Underwater target detection system is widely used in marine resources exploration, national defense construction and other fields. Nowadays, high performance signal processors are springing up in our work and life. It is of practical significance to study how to apply high performance processors to target detection systems. In this paper, the data acquisition and storage technology based on OMAP-L138 hardware platform is applied to the underwater target detection system, and the functions of single channel data acquisition, storage and network control are realized. The main work of this paper is to realize the function of collecting and storing single channel data on SEED-DEC138 platform. First of all, the hardware development platform provided by domestic and foreign manufacturers is consulted in this paper. Combined with the actual background of this paper, the SEED-DEC138 board of Unitas Corporation is selected as the carrier of software development. Combined with the actual situation that the system needs to work independently under water, the startup mode of OMAP-L138 processor is solved, such as bootloader. Secondly, based on DSP/BIOS, the DSP of OMAP is used to realize the software development of IP / IP network control by using EDMA to realize data acquisition / SD card storage / I2C bus control at the same time. In order to balance the task of dual-core processor and make full use of the hardware resources of the processor, the method of realizing data acquisition and storage by dual-core communication technology is studied preliminarily. Finally, the software design of DSP is combined and adjusted. The data can be continuously collected and stored, and the working state and parameters of the card can be controlled by network to achieve the desired purpose. The software design meets the requirements of system design and can work stably, and the system runs normally. For the subsequent data playback, more advanced algorithm to process experimental data provides convenience.
【学位授予单位】：哈尔滨工程大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP333;TP274.2

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