Displacement and Illumination Levels Effect on Short-distance Measurement Errors of Using a Camera

2017 ◽  
Vol 4 (1) ◽  
pp. 73-84
Author(s):  
Eduardo Piedad Jr. ◽  
◽  
Ricky Villeta ◽  
Keyword(s):  
Measurement Errors ◽  
Short Distance ◽  
Distance Measurement

Errors of electronic high precision short distance measurement

2018 ◽  
pp. 107-112
Author(s):  
M. Štroner ◽  
J. Braun ◽  
F. Dvořáček ◽  
R. Urban
Keyword(s):  
High Precision ◽  
Short Distance ◽  
Distance Measurement

Design and Implement of the Car Reversing Automatic Anti-Collision Control System

2014 ◽  
Vol 494-495 ◽  
pp. 206-209
Author(s):  
Xue Feng Yang ◽  
Li Gang Chen ◽  
Xian Feng Zhong
Keyword(s):  
Real Time ◽  
Measurement Errors ◽  
Data Exchange ◽  
High Reliability ◽  
Distance Measurement ◽  
The Real ◽  
Control Units ◽  
Ultrasonic Ranging ◽  
Time Requirements ◽  
Image Collection

There are considerable difference between the actual distance and that measured by infrared or ultrasonic ranging. The car reversing isnt intelligent enough. In order to solve the issues, this paper design an automatic car reversing auxiliary systems based on monocular sight. The system hardware mainly consists of image collection module, embedded micro-controller, and electronic braking module. On the basis of the distance measurement algorithm based on monocular sight, the real-time distance to the front vehicle can be measured and can be auxiliary controlled via the data exchange among vehicle electrical control units. The vehicle dynamic driving experiment verifies the high reliability of the vehicle automatic reversing auxiliary system based on monocular sight. The distance measurement errors are less than 2% when the distance to the front barriers is in the range of 20m~70m. The system can satisfy the real-time requirements for the vehicle intelligent auxiliary braking.

Reverse short distance measurement method of grounding resistance of large grounding grid

2021 ◽  
Author(s):  
Jian Huang ◽  
Peng He ◽  
Cheng Feng ◽  
Zi-Hao Wang ◽  
Li-Wei Yuan
Keyword(s):  
Short Distance ◽  
Measurement Method ◽  
Distance Measurement ◽  
Grounding Resistance ◽  
Grounding Grid

On-the-job detection and correction of systematic cyclic distance measurement errors of terrestrial laser scanners

2008 ◽  
Vol 2 (4) ◽  
Author(s):  
Peter Dorninger ◽  
Clemens Nothegger ◽  
Norbert Pfeifer ◽  
Gábor Molnár
Keyword(s):  
Measurement Errors ◽  
Distance Measurement ◽  
Laser Scanners

scholarly journals Investigation of TLS Intensity Data and Distance Measurement Errors from Target Specular Reflections

2018 ◽  
Vol 10 (7) ◽  
pp. 1077 ◽  
Author(s):  
Kai Tan ◽  
Weiguo Zhang ◽  
Fang Shen ◽  
Xiaojun Cheng
Keyword(s):  
Measurement Errors ◽  
Distance Measurement ◽  
Intensity Data ◽  
Specular Reflections

scholarly journals EXPERIMENTAL ASSESSMENT OF THE QUANERGY M8 LIDAR SENSOR

2016 ◽  
Vol XLI-B5 ◽  
pp. 527-531 ◽  
Author(s):  
M.-A. Mitteta ◽  
H. Nouira ◽  
X. Roynard ◽  
F. Goulette ◽  
J.-E. Deschaud
Keyword(s):  
Measurement Errors ◽  
Temporal Stability ◽  
Systematic Errors ◽  
Distance Measurement ◽  
Lidar System ◽  
Distance Measurements ◽  
Scanning Lidar ◽  
Different Sources ◽  
Indoor And Outdoor

In this paper, some experiments with the Quanergy M8 scanning LIDAR system are related. The distance measurement obtained with the Quanergy M8 can be influenced by different factors. Moreover, measurement errors can originate from different sources. The environment in which the measurements are performed has an influence (temperature, light, humidity, etc.). Errors can also arise from the system itself. Then, it is necessary to determine the influence of these parameters on the quality of the distance measurements. For this purpose different studies are presented and analyzed. First, we studied the temporal stability of the sensor by analyzing observations during time. Secondly, the assessment of the distance measurement quality has been conducted. The aim of this step is to detect systematic errors in measurements regarding the range. Differents series of measurements have been conducted : at different range and in diffrent conditions (indoor and outdoor). Finally, we studied the consistency between the differents beam of the LIDAR.

scholarly journals Sun Tracker Robotic Arm Optical Distance Measurement Evaluation at Different Positions Using Six Sigma Tools

2019 ◽  
pp. 54-60
Author(s):  
Roland Szabo ◽  
Aurel Gontean
Keyword(s):  
Measurement System ◽  
Six Sigma ◽  
Measurement Errors ◽  
System Analysis ◽  
Distance Measurement ◽  
Fine Tuning ◽  
Robotic Arm ◽  
Measurement System Analysis ◽  
Optical Distance ◽  
Repeated Test

This paper presents an optical distance evaluation solution, for a sun tracker robotic arm, with the help of Six Sigma. With the help of statistical tools any measurement system can be evaluated and a measurement system analysis (MSA) can be easily made. Like every measurement system, optical distance measurement can have errors. Six Sigma tools can evaluate the measurement system and can give useful data about its accuracy. Sometimes measurement system evaluation is done twice. First, initial tests are done, after some fine tuning and error correction is performed, and finally a repeated test is done, to show that the measurement errors were corrected.

scholarly journals Improved accuracy of short-distance measurement of water flow velocity using Pulse Boundary Model

2021 ◽  
Vol 32 (1) ◽  
pp. 133-144
Author(s):  
Yuequn Dong ◽  
Tingwu Lei ◽  
Qingwen Zhang ◽  
Xiaohui Zhuang ◽  
Fangfang Liu
Keyword(s):  
Flow Velocity ◽  
Water Flow ◽  
Short Distance ◽  
Distance Measurement ◽  
Water Flow Velocity ◽  
Boundary Model ◽  
Improved Accuracy

scholarly journals Method for Measuring Ultra-Short Distances Using RADARs for Burden Profile Measurement at Blast Furnace

2021 ◽  
Vol 4 (2) ◽  
pp. 9-20
Author(s):  
Chitresh Kundu ◽  
Prabal Patra ◽  
Bipan Tudu ◽  
Dibyayan Patra
Keyword(s):  
Blast Furnace ◽  
Short Distance ◽  
Phased Array ◽  
Surface Profile ◽  
Distance Measurement ◽  
Steel Plant ◽  
Profile Measurement ◽  
Gas Distribution ◽  
Harsh Conditions ◽  
Surface Profile Measurement

The operation of the furnace depends largely on the handling of gas distribution which in-turn is reliant on the burden surface profile. Measurement of burden profile has been a challenge because of the harsh conditions inside the furnace. Phased array radar will suffice this purpose with no moving parts; however, it imposes its own challenges. One of them is measurement of extremely short distances as the stockline in the blast furnace is just few meters away from the topmost part. Unlike conventional radar where the target is kilometre away the short distance measurement involves with time measure din nano seconds with pico-seconds resolution to achieve the desired accuracy. This paper implements a method for ultra-short distance measurement using radars for blast furnace application in steel plant.  

scholarly journals A New Estimate of the Local Standard of Rest from Data on Young Objects

2015 ◽  
Vol 24 (1) ◽  
Author(s):  
V. V. Bobylev ◽  
A. T. Bajkova
Keyword(s):  
Measurement Errors ◽  
Distance Measurement ◽  
Solar Neighborhood ◽  
The Sun ◽  
Peculiar Velocity ◽  
Local Standard ◽  
Local Standard Of Rest

AbstractTo estimate the peculiar velocity of the Sun with respect to the Local Standard of Rest (LSR), we use young objects in the Solar neighborhood with distance measurement errors within 10%–15%. These objects include the nearest

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