發(fā)布時(shí)間：2018-03-26 10:50

  本文選題：無(wú)纜地震數(shù)據(jù)采集系統(tǒng)　切入點(diǎn)：單通道　出處：《吉林大學(xué)》2017年碩士論文

【摘要】：隨著社會(huì)經(jīng)濟(jì)的迅速發(fā)展和我國(guó)綜合國(guó)力的不斷提升,人類對(duì)于礦產(chǎn)資源的需求與日劇增,淺層礦產(chǎn)資源的枯竭成為限制國(guó)民經(jīng)濟(jì)發(fā)展的主要因素。為了解決經(jīng)濟(jì)發(fā)展和有限資源之間的突出矛盾,深部地球勘探成為未來(lái)礦產(chǎn)資源勘探的主要趨勢(shì)。地球物理勘探主要包括重力、電磁、電法、地震、放射性五大類方法,其中地震方法作為地球物理勘探的一種重要方法,一直扮演著不可替代的角色。地震儀是地震勘探系統(tǒng)中的核心儀器之一,用于獲取高質(zhì)量的地震數(shù)據(jù)。近年來(lái),國(guó)內(nèi)外無(wú)纜地震儀迅速發(fā)展,但野外供電問(wèn)題一直是制約其廣泛應(yīng)用的一個(gè)重要因素。為了滿足無(wú)纜地震儀長(zhǎng)時(shí)間野外工作的要求,本文針對(duì)單通道無(wú)纜地震數(shù)據(jù)采集系統(tǒng),從硬件和軟件兩個(gè)方面開(kāi)展低功耗研究與設(shè)計(jì)。首先,分析了無(wú)纜地震儀中各個(gè)功能模塊的功耗分布情況;在此基礎(chǔ)上,針對(duì)其中的主控單元,同步授時(shí)單元和供電單元進(jìn)行了優(yōu)化設(shè)計(jì),設(shè)計(jì)完成了以Cortex-M4內(nèi)核處理器為核心的主控單元,低功耗GPS授時(shí)模塊(U-blox MAX7系列)結(jié)合溫補(bǔ)晶振(TCXO)構(gòu)成的同步授時(shí)單元以及高效率的DC/DC供電單元。在完成系統(tǒng)硬件低功耗設(shè)計(jì)的基礎(chǔ)上,從軟件方面對(duì)系統(tǒng)功耗進(jìn)行了進(jìn)一步的優(yōu)化設(shè)計(jì),基于動(dòng)態(tài)電源管理技術(shù)和動(dòng)態(tài)頻率調(diào)節(jié)技術(shù),根據(jù)系統(tǒng)的工作模式和工作狀態(tài),動(dòng)態(tài)調(diào)整主控單元的工作頻率和相關(guān)模塊的運(yùn)行狀態(tài),進(jìn)一步降低系統(tǒng)的平均功耗。基于Eclipse軟件搭建了STM32開(kāi)發(fā)平臺(tái),完成了Free RTOS操作系統(tǒng)及LWIP協(xié)議棧移植,在此基礎(chǔ)上完成了底層驅(qū)動(dòng)軟件和系統(tǒng)主控軟件設(shè)計(jì),實(shí)現(xiàn)了地震數(shù)據(jù)采集、同步授時(shí)、存儲(chǔ)及數(shù)據(jù)回收等基本功能。最后,搭建了系統(tǒng)樣機(jī)并對(duì)樣機(jī)進(jìn)行了功耗測(cè)試。測(cè)試結(jié)果表明:采用本文方法設(shè)計(jì)的樣機(jī)系統(tǒng)功耗得到了顯著改善,系統(tǒng)樣機(jī)在數(shù)據(jù)采集階段的平均功耗均降至250m W,對(duì)比國(guó)外無(wú)纜地震數(shù)據(jù)采集系統(tǒng)及吉林大學(xué)國(guó)家地球物理探測(cè)儀器工程技術(shù)研究中心自主研發(fā)的GEIWSR無(wú)纜存儲(chǔ)式地震數(shù)據(jù)采集系統(tǒng),有效的降低了系統(tǒng)的功耗,達(dá)到了設(shè)計(jì)要求。
[Abstract]:With the rapid development of social economy and the continuous improvement of China's comprehensive national strength, the human demand for mineral resources has increased dramatically. The depletion of shallow mineral resources has become the main factor restricting the development of national economy. In order to solve the outstanding contradiction between economic development and limited resources, Deep earth exploration has become the main trend of mineral resources exploration in the future. Geophysical exploration mainly includes gravity, electromagnetism, electrical method, earthquake and radioactivity, among which seismic method is an important method of geophysical exploration. Seismograph is one of the core instruments in seismic exploration system, which is used to obtain high quality seismic data. In recent years, there has been rapid development of cable-less seismograph at home and abroad. However, the field power supply problem has been an important factor restricting its wide application. In order to meet the requirement of long time field work of the cable-less seismograph, this paper aims at the single channel no-cable seismic data acquisition system. The research and design of low power consumption in hardware and software are carried out. Firstly, the distribution of power consumption of each functional module in cable-less seismograph is analyzed. The synchronous timing unit and the power supply unit are optimized, and the main control unit with Cortex-M4 kernel processor as the core is designed and completed. The low power GPS time service module U-blox MAX7 series) is composed of a synchronous time service unit and a high efficiency DC/DC power supply unit, which is composed of a temperature-compensated crystal oscillator (TCXO). On the basis of the low power design of the system hardware, the system hardware is designed with low power consumption. From the software aspect, the power consumption of the system is further optimized. Based on the dynamic power management technology and the dynamic frequency regulation technology, according to the working mode and working state of the system, The operating frequency of the main control unit and the running state of the related modules are dynamically adjusted to further reduce the average power consumption of the system. Based on the Eclipse software, the STM32 development platform is built, and the Free RTOS operating system and the LWIP protocol stack transplantation are completed. On this basis, the basic functions of seismic data acquisition, synchronous timing, storage and data recovery are realized. The system prototype is built and the power consumption of the prototype is tested. The test results show that the power consumption of the prototype system designed by this method has been significantly improved. The average power consumption of the prototype is reduced to 250 MW in the data acquisition stage, compared with the cable free seismic data acquisition system abroad and the GEIWSR cable free storage ground developed by the National Geophysical instrument Engineering Research Center of Jilin University. Seismic data acquisition system, Effectively reduce the power consumption of the system, meet the design requirements.
【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TP274.2

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 聶明濤;張慕剛;丁冠東;劉仁武;黃艷林;;GSR無(wú)線節(jié)點(diǎn)采集技術(shù)在地震勘探中的應(yīng)用[J];石油管材與儀器;2016年04期

2 夏鑫;張果;王劍平;楊曉洪;;實(shí)時(shí)操作系統(tǒng)FreeRTOS移植的實(shí)驗(yàn)研究[J];化工自動(dòng)化及儀表;2016年07期

3 張文亮;田沛;劉暉;劉方金;;基于FreeRTOS的lwip協(xié)議棧的移植與測(cè)試[J];自動(dòng)化技術(shù)與應(yīng)用;2015年11期

4 王盼;張鋒;吳海;張慶慶;;礦井節(jié)點(diǎn)地震儀低功耗時(shí)間同步系統(tǒng)設(shè)計(jì)[J];煤炭技術(shù);2015年01期

5 李君輝;陳祖斌;申茂冬;朱亞?wèn)|洋;龐廣華;;基于FPGA的低功耗無(wú)纜地震儀校鐘系統(tǒng)[J];儀表技術(shù)與傳感器;2014年11期

6 林君;吳勇;薛開(kāi)昶;周逢道;;CSAMT探測(cè)系統(tǒng)的低功耗高精度同步時(shí)鐘源設(shè)計(jì)[J];中南大學(xué)學(xué)報(bào)(自然科學(xué)版);2014年09期

7 高立兵;靳春光;;陸地?zé)o纜地震儀的現(xiàn)狀與展望[J];物探裝備;2014年03期

8 劉湘云;吳舒辭;;MDK環(huán)境下基于Cortex-M3的FreeRTOS移植[J];長(zhǎng)沙民政職業(yè)技術(shù)學(xué)院學(xué)報(bào);2013年04期

9 李懷良;庹先國(guó);劉明哲;;無(wú)線遙測(cè)式數(shù)字地震儀關(guān)鍵技術(shù)[J];地球物理學(xué)報(bào);2013年11期

10 李連生;魏文豪;;無(wú)纜自定位地震儀測(cè)試技術(shù)研究[J];煤炭技術(shù);2013年11期

相關(guān)博士學(xué)位論文 前1條

1 楊泓淵;復(fù)雜山地自定位無(wú)纜地震儀的研究與實(shí)現(xiàn)[D];吉林大學(xué);2009年

相關(guān)碩士學(xué)位論文 前9條

1 趙金龍;基于STM32的單通道無(wú)纜存儲(chǔ)式地震儀設(shè)計(jì)與實(shí)現(xiàn)[D];吉林大學(xué);2016年

2 楊陽(yáng);一體化折射地震儀的低功耗設(shè)計(jì)[D];吉林大學(xué);2014年

3 王盼;礦井無(wú)纜存儲(chǔ)式地震儀時(shí)間同步系統(tǒng)研究[D];西安科技大學(xué);2013年

4 李孛;一種DSP處理平臺(tái)的低功耗設(shè)計(jì)與實(shí)現(xiàn)[D];中國(guó)艦船研究院;2013年

5 余曉光;基于實(shí)時(shí)操作系統(tǒng)FreeRTOS的Lwip協(xié)議的移植研究[D];昆明理工大學(xué);2013年

6 謝鵬程;基于STM32和FreeRTOS的獨(dú)立式運(yùn)動(dòng)控制器設(shè)計(jì)與研究[D];華南理工大學(xué);2012年

7 梁宇恒;高精度數(shù)據(jù)采集及DSP+FPGA高速信號(hào)處理硬件系統(tǒng)設(shè)計(jì)[D];西安電子科技大學(xué);2012年

8 劉潔;高效率電壓模同步降壓型DC-DC轉(zhuǎn)換器的研究與設(shè)計(jì)[D];西安電子科技大學(xué);2012年

9 李從慶;動(dòng)態(tài)電源管理技術(shù)在地震數(shù)據(jù)采集系統(tǒng)中的應(yīng)用研究[D];中國(guó)地震局地球物理研究所;2011年

，

本文編號(hào)：1667584