scholarly journals Construction and Operation of a High-Speed, High-Precision Eye Tracker for Tight Stimulus Synchronization and Real-Time Gaze Monitoring in Human and Animal Subjects

2016 ◽  
Vol 10 ◽  
Author(s):  
Reza Farivar ◽  
Danny Michaud-Landry
Keyword(s):  
Real Time ◽  
High Precision ◽  
High Speed ◽  
Eye Tracker

Online Real-Time Detection Scheme Research on Precision of Filter Rod Circumference

2015 ◽  
Vol 731 ◽  
pp. 340-344
Author(s):  
Qian Ru Tian ◽  
Bang Gui He ◽  
Zhi Long Wang
Keyword(s):  
Real Time ◽  
High Precision ◽  
High Speed ◽  
Contour Detection ◽  
Discrete Control ◽  
Compact Structure ◽  
Detection Scheme ◽  
Forming Mechanism ◽  
Precision Measuring ◽  
Real Time Detection

Precision of filter rod circumference is an important performance index of the cigarette manufacturing. The forming mechanism of filter rod, equipment vibration and other interference factors all lead to fluctuations of precision of filter rod circumference which can affect the precision of the cigarette. The existing KDF2/3 filter rod making machine which has the characteristics of compact structure (small space dimension), high speed (300 m/min) and discrete control of precision of filter rod circumference is the core equipment of filter rod production. This paper puts forward four kinds of online real-time detection schemes on precision of filter rod circumference which are Aomeijia’s many groups of detectors scheme, Keyence’s contour detection scheme, high precision measuring diameter instrument detection scheme using multiple sets of KD series meter and the 360 degrees rotating survey meter. On the basis of extensive analysis and experimental validation, Aomeijia’s four-way diameter measuring instrument scheme is optimal. The scheme applies laser to non-contact high speed scan on key radial diameter size of filter rod which achieves 0.001mm high precision detection.

A Design of Position Terminal Based on BDS

2014 ◽  
Vol 635-637 ◽  
pp. 1128-1131
Author(s):  
Xing Hong Kuang ◽  
Zhe Yi Yao ◽  
Shi Ming Wang
Keyword(s):  
Data Collection ◽  
Real Time ◽  
High Precision ◽  
High Speed ◽  
Large Scale ◽  
High Efficiency ◽  
Satellite Navigation ◽  
Navigation Systems ◽  
Time Data ◽  
High Precision Measurement

With the development of economy, the global satellite navigation system with its high speed, high efficiency, high precision measurement and positioning a series of significant advantages, favored by various industry data collection and monitoring of personnel resources , the advent of satellite navigation systems to solve a large-scale, rapid and high-precision global positioning problem. Its scope of application has penetrated to the various departments of the national economic and social development in various fields and industries. To be able to monitor the progressive realization of automated data collection and transmission, the urgent need to adopt advanced positioning technology to build real-time location monitoring system PC Based Development Background navigation receiver , an overview of the inter Beidou BD-126 systems and microcontrollers can be serially the basic principle of mouth communication describes the communication protocol Compass BD-126 positioning module and the next crew between the microcontroller to control development in the use of PC positioning system for a detailed description , including the BDS Beidou satellite navigation module and microcontroller serial data communications, microprocessor controlled real-time data display , and so on

Research on Intelligent Control System of High Speed and High Precision Filling Disc Machine

2013 ◽  
Vol 397-400 ◽  
pp. 1164-1168
Author(s):  
Ye Kuan Duan ◽  
Jun Fang Ni
Keyword(s):  
Control System ◽  
Real Time ◽  
High Precision ◽  
Intelligent Control ◽  
High Speed ◽  
Positioning System ◽  
Control Technology ◽  
Intelligent Control System ◽  
Accurate Localization ◽  
Machine Interface

Traditional filling disc assembly requires a lot of manual operations and the efficiency of filling disc is not high. Human-machine interface (HMI) and image positioning system of the filling disc machine are developed in this paper, and the whole system and structure are studied on the programmable control technology. The machine realizes the functions of data real-time collection and fast accurate localization. Equipment has reached the accurate filling disc, and got an excellent application in the enterprises.

scholarly journals Pixelwise Phase Unwrapping Based on Ordered Periods Phase Shift

Sensors ◽  
2019 ◽  
Vol 19 (2) ◽  
pp. 377
Author(s):  
Satoshi Tabata ◽  
Michika Maruyama ◽  
Yoshihiro Watanabe ◽  
Masatoshi Ishikawa
Keyword(s):  
High Resolution ◽  
Phase Shift ◽  
Real Time ◽  
High Precision ◽  
High Speed ◽  
Moving Objects ◽  
Global Illumination ◽  
Accurate Method ◽  
Phase Unwrapping ◽  
Order Structure

The existing phase-shift methods are effective in achieving high-speed, high-precision, high-resolution, real-time shape measurement of moving objects; however, a phase-unwrapping method that can handle the motion of target objects in a real environment and is robust against global illumination as well is yet to be established. Accordingly, a robust and highly accurate method for determining the absolute phase, using a minimum of three steps, is proposed in this study. In this proposed method, an order structure that rearranges the projection pattern for each period of the sine wave is introduced, so that solving the phase unwrapping problem comes down to calculating the pattern order. Using simulation experiments, it has been confirmed that the proposed method can be used in high-speed, high-precision, high-resolution, three-dimensional shape measurements even in situations with high-speed moving objects and presence of global illumination. In this study, an experimental measurement system was configured with a high-speed camera and projector, and real-time measurements were performed with a processing time of 1.05 ms and a throughput of 500 fps.

Four Synchronous Transfer Mode of USB in Mechanical Engineering

2013 ◽  
Vol 644 ◽  
pp. 93-96
Author(s):  
Xue Peng Liu ◽  
Dong Mei Zhao
Keyword(s):  
Data Collection ◽  
Data Acquisition ◽  
Real Time ◽  
High Precision ◽  
High Speed ◽  
Mechanical Engineering ◽  
Basic Knowledge ◽  
Real Time Processing ◽  
Time Processing ◽  
Transfer Mode

The basic knowledge of USB in mechanical engineering is mainly introduced. The data acquisition is convenient and fast. The problem the synchronicity of the data collection is solved. USB transfer has the Characteristics of high speed, high precision, the multiple synchronous collection and real-time processing. Four feasible transfer software schemes are proposed

The Fiber Grating Signal Acquisition System Design Based on FPGA and USB Interface

2013 ◽  
Vol 760-762 ◽  
pp. 507-510 ◽  
Author(s):  
Yi Zhu Zhao ◽  
Sheng Peng Wan ◽  
Di Peng ◽  
Dong Dong Liu
Keyword(s):  
System Design ◽  
Real Time ◽  
High Precision ◽  
Software Design ◽  
High Speed ◽  
Fiber Grating ◽  
Signal Acquisition ◽  
Signal System ◽  
Good Reliability ◽  
Usb Interface

Design a high-precision real-time high-speed sampling fiber grating demodulation signal system based on a USB2.0 interface and FPGA; system hardware design and software design are introduced in detail. It is proved that has a good reliability and stability by the experiment. So this design has a strong value in use.

DSP Curve Surface Interpolator Research Based on Open Platform

2007 ◽  
Vol 10-12 ◽  
pp. 471-475
Author(s):  
W.T. Sun ◽  
Yong Xian Liu ◽  
G.M. Sun ◽  
Y.C. Zhang
Keyword(s):  
Real Time ◽  
High Precision ◽  
High Speed ◽  
Curve Surface ◽  
Interpolation Algorithm ◽  
Limit Curve ◽  
Open Platform

For the improvement of the system real-time capability, the DSP Curve Surface interpolator has been designed to ensure high speed, high precision requirement for the machining of complexity curve surface. The hardware and software has been designed. The changeable feedrate interpolation algorithm of limit curve error has been studied. Furthermore, the algorithm has been applied to the interpolation and has well real-time capability to satisfy the requirement of high capability CNC by experimentation.

The Design of Worm Wheel Transmission Error Measurement System and the Research on Experimental Method

2011 ◽  
Vol 199-200 ◽  
pp. 365-371 ◽  
Author(s):  
Fang Yan Zheng ◽  
Zi Ran Chen ◽  
Xi Hou Chen ◽  
Chun Dong
Keyword(s):  
Real Time ◽  
High Precision ◽  
Measurement System ◽  
High Speed ◽  
Transmission Error ◽  
Error Measurement ◽  
Time Data ◽  
Worm Wheel ◽  
High Speed Data Acquisition ◽  
Observation Method

A novel worm wheel transmission error measurement system based on a new space-time subdivision technology is presented in this paper. Non-integer transmission ratio with high precision can be measured with this measurement system. FPGA chip is employed to meet the requirement of high precision and real-time, and USB2.0 meet the requirement of high speed data acquisition and real time data transmission. In addition, precision self-checking is studied with quantitative shifting method, and the experiment method on repeatability test and data processing are studied with dual-observation method. Experiment results prove that this measurement system has high precision and good repeatability.

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