【摘要】：隨著我國建筑及工程測量等科學技術(shù)領(lǐng)域不斷發(fā)展,激光測距技術(shù)的應(yīng)用領(lǐng)域也日益廣泛,但與此同時科研領(lǐng)域?qū)τ诩す鉁y距系統(tǒng)測量精度的要求也日趨嚴格。通常情況下,具有高精度特性的激光測距系統(tǒng),其總構(gòu)架及內(nèi)部電路設(shè)計十分復雜,進而造成其體積過于龐大,不方便攜帶以及價格昂貴等諸多問題。為有效改善此現(xiàn)象,本文旨在保證一定測量量程及高測量精度的前提下,設(shè)計一套成本相對低廉且結(jié)構(gòu)相對簡單的脈沖激光測距系統(tǒng)。首先,在激光測距系統(tǒng)低成本這一特性的實現(xiàn)上,本課題主要是通過選取性能高效,穩(wěn)定且相對平價的芯片及其他相關(guān)電子器件。其次,在激光測距系統(tǒng)設(shè)計架構(gòu)及內(nèi)部功能電路簡化的實現(xiàn)上,本課題在設(shè)計發(fā)射模塊,接收模塊及時間測量模塊時均采取內(nèi)部結(jié)構(gòu)更為簡單的硬件電路設(shè)計方案。在完成對低成本小型脈沖激光測距系統(tǒng)設(shè)計工作后,通過對其主要的功能電路進行仿真,進而驗證該脈沖激光測距系統(tǒng)的可行性,最后,就其測距系統(tǒng)的主要性能包括最大測程與測量精度進行理論分析及驗證實驗,通過分析測試數(shù)據(jù),進而判斷設(shè)計的低成本小型脈沖激光測距系統(tǒng)滿足測距性能要求。課題采用雙次測量的測距方法作為低成本小型脈沖激光測距系統(tǒng)的校準方法,這將有效的消除測距系統(tǒng)自身的測量誤差,提升系統(tǒng)測距精度。
[Abstract]:With the continuous development of science and technology fields such as building and engineering surveying in China, the application of laser ranging technology is becoming more and more extensive, but at the same time, the requirement of measuring precision of laser ranging system is becoming more and more strict in the field of scientific research. In general, the overall structure and internal circuit design of laser ranging system with high accuracy is very complex, which leads to many problems, such as too large volume, inconvenient carrying and expensive price. In order to improve this phenomenon effectively, the purpose of this paper is to design a pulse laser ranging system with relatively low cost and relatively simple structure on the premise of certain measuring range and high measuring accuracy. First of all, in the realization of the low-cost laser ranging system, this topic is mainly through the selection of efficient, stable and relatively inexpensive chips and other related electronic devices. Secondly, in the design architecture of laser ranging system and the realization of the simplification of internal functional circuit, the design of transmitting module, receiving module and time measuring module are all adopted in the design of the hardware circuit with simpler internal structure. After the design of the low cost and small pulse laser ranging system is completed, the feasibility of the pulse laser ranging system is verified by the simulation of its main functional circuits. The main performance of the ranging system includes the theoretical analysis and verification experiment of the maximum measurement range and the measurement precision. By analyzing the test data, it is judged that the low cost and small pulse laser ranging system can meet the requirements of ranging performance. The double measurement method is used as the calibration method of the low cost pulse laser ranging system, which will effectively eliminate the measurement errors of the ranging system and improve the accuracy of the system.
【學位授予單位】：西安工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TN249

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本文編號：2181514