本文選題：激光測(cè)距 + 光電轉(zhuǎn)換　； 參考：《電子科技大學(xué)》2014年碩士論文

【摘要】：激光測(cè)距是一種先進(jìn)的測(cè)距技術(shù),測(cè)量精度高,測(cè)量量程,抗干擾能力強(qiáng)。而很多時(shí)候,需要對(duì)多點(diǎn)進(jìn)行測(cè)距,尤其是在動(dòng)態(tài)測(cè)量時(shí),多點(diǎn)的測(cè)量需要同時(shí)進(jìn)行,此時(shí)需要用到多點(diǎn)激光測(cè)距儀,而多通道光電時(shí)間間隔測(cè)量系統(tǒng)是多點(diǎn)激光測(cè)距儀的關(guān)鍵部分。在此背景下,研究設(shè)計(jì)一個(gè)高精度高可靠性的多通道光電時(shí)間間隔測(cè)量系統(tǒng)是本論文的主要工作目的。本論文首先研究了激光測(cè)距及時(shí)間間隔測(cè)量的關(guān)鍵技術(shù),為后續(xù)的多通道光電時(shí)間間隔測(cè)量系統(tǒng)提供理論依據(jù)。通過(guò)對(duì)多種時(shí)間間隔測(cè)量技術(shù)的研究與調(diào)查,本論文最終選擇基于TDC-GPX時(shí)間數(shù)字轉(zhuǎn)換器芯片開(kāi)發(fā)系統(tǒng)所需的多通道光電時(shí)間間隔測(cè)量電路。整個(gè)硬件由多個(gè)模塊構(gòu)成,包括完成脈沖激光信號(hào)到電信號(hào)轉(zhuǎn)換的光電轉(zhuǎn)換模塊、對(duì)光電轉(zhuǎn)換模塊進(jìn)行信號(hào)處理以滿足TDC-GPX信號(hào)輸入要求的信號(hào)處理模塊以及基于TDC-GPX的時(shí)間間隔計(jì)時(shí)模塊等。整個(gè)硬件系統(tǒng)通過(guò)PIC單片機(jī)進(jìn)行控制,各個(gè)通道的測(cè)量數(shù)據(jù)通過(guò)I2C總線進(jìn)行傳輸,然后通過(guò)UART串口傳給計(jì)算機(jī)進(jìn)行后續(xù)的軟件自動(dòng)化處理。本論文還為多通道光電時(shí)間間隔測(cè)量系統(tǒng)設(shè)計(jì)了自動(dòng)化的測(cè)量軟件。虛擬儀器技術(shù)是一種利用軟件來(lái)實(shí)現(xiàn)傳統(tǒng)儀器功能的計(jì)算機(jī)技術(shù),和傳統(tǒng)儀器相比,虛擬儀器具有更加方便更加靈活的特點(diǎn),而和計(jì)算機(jī)其他軟件技術(shù)相比,虛擬儀器模塊高度集成化和圖形式編程語(yǔ)言的特點(diǎn)使得工程師能夠更加快速地完成儀器軟件的開(kāi)發(fā)且具有更高的可靠性。因此,本論文利用LABVIEW虛擬儀器平臺(tái)開(kāi)發(fā)了多通道光電時(shí)間間隔測(cè)量系統(tǒng)所需的數(shù)據(jù)采集及統(tǒng)計(jì)分析軟件。數(shù)據(jù)采集所需的串口驅(qū)動(dòng)通過(guò)VISA虛擬儀器編程標(biāo)準(zhǔn)IO進(jìn)行開(kāi)發(fā)。大
[Abstract]:Laser ranging is an advanced ranging technology with high measuring precision, measuring range and strong anti-interference ability. In many cases, multipoint ranging is needed, especially in dynamic measurement, where multipoint laser rangefinder is used. The multi-channel photoelectric time interval measurement system is a key part of multi-point laser rangefinder. Under this background, the research and design of a high precision and high reliability multichannel photoelectric time interval measurement system is the main purpose of this thesis. In this paper, the key technologies of laser ranging and time interval measurement are studied firstly, which provides the theoretical basis for the subsequent multichannel photoelectric time interval measurement system. Through the research and investigation of various time interval measurement techniques, this paper finally chooses the multichannel photoelectric time interval measurement circuit which is based on the TDC-GPX time digital converter chip to develop the system. The whole hardware consists of several modules, including a photoelectric conversion module to complete the conversion of pulse laser signal to electrical signal. The signal processing module of photoelectric conversion module is used to satisfy the requirement of TDC-GPX signal input, and the time interval timing module based on TDC-GPX, etc. The whole hardware system is controlled by PIC single chip microcomputer, the measurement data of each channel is transmitted through I2C bus, and then transmitted to the computer through UART serial port to carry on the subsequent software automation processing. This paper also designed the automatic measurement software for the multi-channel photoelectric time interval measurement system. Virtual instrument technology is a kind of computer technology which uses software to realize the function of traditional instrument. Compared with traditional instrument, virtual instrument is more convenient and more flexible, and compared with other software technology of computer, virtual instrument is more convenient and more flexible than traditional instrument. The characteristics of highly integrated virtual instrument module and graphical programming language enable engineers to complete the development of instrument software more quickly and have higher reliability. Therefore, the software of data acquisition and statistical analysis is developed based on the LABVIEW virtual instrument platform for the multichannel photoelectric time interval measurement system. The serial driver for data acquisition is developed by VISA Virtual instrument programming Standard IO. Big
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN249;TM935.15

【參考文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前1條

1 黃寧;基于虛擬儀器的多通道時(shí)間間隔測(cè)量?jī)x的研究與設(shè)計(jì)[D];中國(guó)科學(xué)院研究生院（國(guó)家授時(shí)中心）;2008年

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