Design of automatic measurement system of high-speed projectile position

Bo FAN; Yan-jie WANG

doi:10.3788/YJYXS20173209.0741

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Design of automatic measurement system of high-speed projectile position

Image Processing | 更新时间：2020-07-07

- Design of automatic measurement system of high-speed projectile position
- Chinese Journal of Liquid Crystals and Displays Vol. 32, Issue 9, Pages: 741-747(2017)
- 作者机构：
  
  1.中国科学院长春光学精密机械与物理研究所, 吉林长春 130033
  2.中国科学院大学, 北京 100049
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20173209.0741
  CLC： TP333.5;TP334.4
- Received：07 July 2017，
  
  Accepted：14 August 2017，
  
  Published：05 September 2017
- 稿件说明：
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Bo FAN, Yan-jie WANG. Design of automatic measurement system of high-speed projectile position[J]. Chinese journal of liquid crystals and displays, 2017, 32(9): 741-747.
DOI：

Bo FAN, Yan-jie WANG. Design of automatic measurement system of high-speed projectile position[J]. Chinese journal of liquid crystals and displays, 2017, 32(9): 741-747. DOI： 10.3788/YJYXS20173209.0741.

摘要

为了精确测量高速弹丸穿越光幕靶瞬间的位置坐标，设计一种基于FPGA加DSP的实时图像处理板卡，采用处理板卡与嵌入式软件算法相结合的方式组成高速弹丸位置坐标自动测量系统。该系统可以设置相机面阵和线阵工作，使测量前端自动互瞄、自动组成光幕靶，提高系统自动化程度。设计基于FPGA的SATA硬盘阵列控制方法，保证高速图像的实时记录和回放。利用FPGA实现的PCIe接口保证上位机与板卡数据交换和通信的实时性。实验结果表明，本系统能够自动完成测量前的准备工作，高速弹丸的捕获概率超过99%，以中心点为原点的200 mm直径范围内的测量精度优于1 mm。本系统能够满足高速弹丸位置坐标的测量需求，具有捕获率高、精度高、实时性好等特点，有很高的实用价值。

Abstract

In order to measure the transient coordinates that high-speed projectile goes through the screen accurately

a real-time image processing card based on FPGA and DSP is designed. We designed an automatic measurement system of high-speed projectile location coordinates by using processing card and embedded software algorithm. We can set camera work at planar array mode or linear array mode

we also let measuring front-end do automatic mutual alignment

do automatic composition of laser screen target. We improve the degree of automation of the system and design a SATA hard disk array control method based on FPGA

so that the high speed real-time image can be recorded and replayed. We use FPGA to implement the PCIE interface to ensure the real-time data exchanging and communication between host computer and the card. The experimental results show that this system can automatically complete the preparatory work before measurement

high-speed projectile capture probability is close to 100%

the measurement accuracy is better than 1 mm within the point of origin to the center of the range of 200 mm in diam. This system can meet the requirement in measurement of high-speed projectile location coordinates. It has characteristics such as high capture rate

high precision

real-time and so on. It has very high practical value.

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references

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