發(fā)布時間：2018-04-30 15:06

  本文選題：數(shù)據(jù)采集 + OMAP　； 參考：《哈爾濱工程大學(xué)》2013年碩士論文

【摘要】：水下目標(biāo)探測系統(tǒng)在海洋資源勘探、國防建設(shè)等領(lǐng)域應(yīng)用廣泛，發(fā)展迅速。而現(xiàn)當(dāng)今也經(jīng)歷著電子器件高速發(fā)展的重要時期，高性能信號處理器如雨后春筍般出現(xiàn)在我們的工作和生活中。研究如何將高性能的處理器應(yīng)用于目標(biāo)探測系統(tǒng)中，具有十分現(xiàn)實的意義。本文基于OMAP-L138硬件平臺的數(shù)據(jù)采集存儲技術(shù)的研究最終應(yīng)用在水下目標(biāo)探測系統(tǒng)中，實現(xiàn)了單通道數(shù)據(jù)采集、存儲、網(wǎng)絡(luò)控制等功能。 本文的主要工作是在合眾達(dá)公司的SEED-DEC138平臺上實現(xiàn)對單通道數(shù)據(jù)的采集、存儲等功能。首先，本文查閱了國內(nèi)外廠商提供的硬件開發(fā)平臺，結(jié)合本文研究的實際背景，最終選定了合眾達(dá)公司的SEED-DEC138板卡作為軟件開發(fā)的載體。并結(jié)合系統(tǒng)需要在水下獨立工作的實際情況，解決了OMAP-L138處理器的啟動方式、Bootloader等問題。其次使用OMAP的DSP端基于DSP/BIOS完成了利用EDMA同時實現(xiàn)數(shù)據(jù)采集，SD卡存儲，，I2C總線控制，TCP/IP網(wǎng)絡(luò)控制等軟件開發(fā)工作。為了平衡處理器雙核的任務(wù)量并充分利用處理器的硬件資源，初步研究了雙核通信技術(shù)實現(xiàn)數(shù)據(jù)采集存儲功能的方法。最后，對DSP端的軟件設(shè)計進行了系統(tǒng)聯(lián)調(diào)，聯(lián)調(diào)后數(shù)據(jù)能夠連續(xù)采集和存儲，并能通過網(wǎng)絡(luò)控制板卡工作狀態(tài)和參數(shù)，達(dá)到預(yù)期目的。 經(jīng)過系統(tǒng)聯(lián)調(diào)測試，軟件設(shè)計滿足系統(tǒng)設(shè)計要求并可穩(wěn)定工作，系統(tǒng)運行正常。為后續(xù)的數(shù)據(jù)回放、更高級算法處理實驗數(shù)據(jù)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.
【學(xué)位授予單位】：哈爾濱工程大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TP333;TP274.2

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本文編號：1825039