低成本小型脉冲激光测距系统设计
发布时间：2018-08-13 16:16
【摘要】：随着我国建筑及工程测量等科学技术领域不断发展,激光测距技术的应用领域也日益广泛,但与此同时科研领域对于激光测距系统测量精度的要求也日趋严格。通常情况下,具有高精度特性的激光测距系统,其总构架及内部电路设计十分复杂,进而造成其体积过于庞大,不方便携带以及价格昂贵等诸多问题。为有效改善此现象,本文旨在保证一定测量量程及高测量精度的前提下,设计一套成本相对低廉且结构相对简单的脉冲激光测距系统。首先,在激光测距系统低成本这一特性的实现上,本课题主要是通过选取性能高效,稳定且相对平价的芯片及其他相关电子器件。其次,在激光测距系统设计架构及内部功能电路简化的实现上,本课题在设计发射模块,接收模块及时间测量模块时均采取内部结构更为简单的硬件电路设计方案。在完成对低成本小型脉冲激光测距系统设计工作后,通过对其主要的功能电路进行仿真,进而验证该脉冲激光测距系统的可行性,最后,就其测距系统的主要性能包括最大测程与测量精度进行理论分析及验证实验,通过分析测试数据,进而判断设计的低成本小型脉冲激光测距系统满足测距性能要求。课题采用双次测量的测距方法作为低成本小型脉冲激光测距系统的校准方法,这将有效的消除测距系统自身的测量误差,提升系统测距精度。
[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.
【学位授予单位】：西安工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN249
本文编号：2181514
[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.
【学位授予单位】：西安工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN249
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，本文编号：2181514
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