scholarly journals Prototype Mesin Pengantar Barang Otomatis Menggunakan Load Cell Berbasis Robot Line Follower

2018 ◽  
Vol 10 (1) ◽  
pp. 23-29
Author(s):  
Dwi Budi Susilo ◽  
Hari Wibawanto ◽  
Anggraini Mulwinda
Keyword(s):  
Load Cell ◽  
Load Testing ◽  
White Line ◽  
Photo Diode ◽  
Testing Data ◽  
Data Output ◽  
On Line ◽  
The Difference ◽  
Development Methods ◽  
Prototype Design

Overloaded condition in the product porter like hand pallet, hand stacker, forclift, and etc, can causes damage and terrible accident in the machine operator. This research aim to build a prototype of porter machine that can prevent overloaded condition through the reading of load cell and photo diode sensor to guide the line follower direction. Research and development methods are used with the systematic writing are background of study and problems, prototype design and validation, testing, taking and analysis of the data. Output of the research is a prototype of porter machine using load cell sensor based on line follower robot. The Result of the load cell reading is compared to SF-400 weigher, and found the difference amount 0.117%. The load testing data of automatic moving trigger is 1 gram until 2999 gram. The Overload condition warning is active while the load is more than 3000 gram. The data reading of the photo diode on the black line is running succesfully, however on the white line with orange color is found some error.

scholarly journals Development of Urban Driving Cycle with GPS Data Post Processing

2016 ◽  
Vol 28 (4) ◽  
pp. 353-364 ◽  
Author(s):  
Peter Lipar ◽  
Irena Strnad ◽  
Martin Česnik ◽  
Tomaž Maher
Keyword(s):  
Data Collection ◽  
Urban Area ◽  
Measurement Data ◽  
Driving Cycle ◽  
Gps Data ◽  
Post Processing ◽  
The Difference ◽  
Large Random Sample ◽  
Representative Area ◽  
Development Methods

This paper presents GIS-based methodology for urban area driving cycle construction. The approach reaches beyond the frames of usual driving cycle development methods and takes into account another perspective of data collection. Rather than planning data collection, the approach is based on available in-vehicle measurement data post processing using Geographic Information Systems to manipulate the excessive database and extract only the representative and geographically limited individual trip data. With such data post processing the data was carefully adjusted to include only the data that describe representative driving in Ljubljana urban area. The selected method for the driving cycle development is based on searching for the best microtrips combination while minimizing the difference between two vectors; one based on generated cycle and the other on the database. Accounting for a large random sample of actual trip data, our approach enables more representative area-specific driving cycle development than the previously used techniques.

On-Line Fuzzy Logic Temperature Control of a Concentric-Tubes Heat Exchanger Facility

2006 ◽  
Author(s):  
Claudia Ruiz-Mercado ◽  
Arturo Pacheco-Vega ◽  
Kevin Peters
Keyword(s):  
Heat Exchanger ◽  
Temperature Control ◽  
Fuzzy Controller ◽  
Fuzzy Rule ◽  
Outlet Temperature ◽  
Single Input Single Output ◽  
Single Output ◽  
On Line ◽  
The Difference ◽  
Two Stages

We develop a fuzzy rule based controller to perform on-line temperature control of a concentric-tubes heat exchanger facility. The rules were derived from dynamical values of the mass flow rates and fluid temperatures in the heat exchanger. The controller was embedded in a closed-loop single-input single-output system to control the outlet temperature of the cold fluid. The controller was constructed in two stages, the difference between them being the amount of information provided to the controller. To validate the fuzzy controller two sets of tests were carried out for maintaining a constant value of the outlet temperature under different perturbations. Results from this analysis demonstrate that the fuzzy-based controller is able to achieve control of the system, and that the information about the system provided to it is important in terms of accuracy and efficiency.

scholarly journals Identification of barriers to co-create on-line: the perspectives of customers and companies

2018 ◽  
Vol 12 (4) ◽  
pp. 452-471 ◽  
Author(s):  
Maryna Chepurna ◽  
Josep Rialp Criado
Keyword(s):  
Rank Correlation ◽  
Point Of View ◽  
The Internet ◽  
Structured Interviews ◽  
Conceptual Information ◽  
Content Type ◽  
Spearman’S Rank Correlation ◽  
Internet Users ◽  
On Line ◽  
The Difference

Purpose Value co-creation is an important topic of interest in marketing domain for the past decade. Co-creation via the internet has received a particular attention in the literature (O’Hern and Rindfleisch, 2010). Although there have been substantive number of studies of what motivates customers to participate in value co-creation in the internet-based platforms, there is a lack of research of what the deterrents are that may prevent customers from contributing their ideas online. This research was undertaken to define the deterrents from the customers and companies’ point of view. Furthermore, the difference, if exists, between the users’ and marketing professionals’ ranking of the inhibitors to co-creation online is also studied. Design/methodology/approach This exploratory qualitative research is based on 20 in-depth semi-structured interviews with customers and 20 in-depth semi-structured interviews with marketing specialists from different companies. Spearman’s rank correlation is applied to explore the relationship between the internet users’ and marketers’ responses. Findings There are nine constraining factors. The results show that although there is a repetition of the mentioned constraining factors indicated by the both groups of the interviewees, the ranking of the barriers is distinctive. Research Implications New conceptual information is received on what restrains customers from co-creation from both customers’ and companies’ point of view. Practical Implications This paper explains the potential problems to be confronted when launching a co-creation project in the internet-based platforms and offers managers a preliminary guide to comprehension of the users’ deterrents rating. Originality The paper that defines deterrents to co-creation online.

Computer Controlled X-Ray Diffraction Measurement of Residual Stress

1972 ◽  
Vol 16 ◽  
pp. 344-353 ◽  
Author(s):  
Carol J. Kelly ◽  
E. Eichen
Keyword(s):  
Residual Stress ◽  
Computer Control ◽  
Sample Surface ◽  
Diffraction Measurement ◽  
X Ray Diffraction ◽  
X Ray ◽  
Intensity Measurements ◽  
On Line ◽  
Computer Controlled ◽  
The Difference

AbstractThe system to be described includes hardware and software for the on-line computer control of the X-ray diffraction measurement of residual stress. This determination involves accurately measuring the angles at which a back-reflection line is diffracted, first by diffracting planes parallel to the sample surface, and then by planes at an angle (ψ) to the sample surface. The residual stress is calculated from the difference in the two measured diffraetion angles. The procedure executed by the computer consists of locating the peaks, selecting three angles for collection of X-ray counts, correcting the measured counts, fitting the equi-angular intensity measurements to a three-point parabola, calculating the peak angles, calculating the residual stress from the measured angles and typing a report. This automation has eliminated the tedium of the manual X-ray data accumulation and of the residual stress calculation. The online control has also permitted improvements in the technique not practicable with the manually performed measurement of residual stress.

Visualization of Urban Prediction Using Augmented Maps

2012 ◽  
Author(s):  
Sandy Martedi ◽  
Sébastien Callier ◽  
Hideo Saito ◽  
Pega Sanoamuang ◽  
Milica Muminović
Keyword(s):  
Geographical Information Systems ◽  
Green Space ◽  
Geographical Information ◽  
Train Station ◽  
Monitor Display ◽  
Before And After ◽  
Web Camera ◽  
On Line ◽  
The Difference ◽  
The Impact

In this paper, we explore a visualization method using augmented maps for urban prediction. Our implementation allows users to determine the location for prediction in a paper map. As an application example, we examine an area before and after new train station is built. We use the difference between two maps for simulating the changes or predicting the impact if a new train station is built on a location in a paper map. In off-line phase, we gather knowledge data from several reference locations by comparing two aerial maps (before and after the train station is built). We then analyze the difference of green spaces between those two maps using color extraction. We observe that the green space around the new train station mostly decreases due to the area development. This information is then stored for prediction reference. In on-line phase, we use a monocular setup that consists of one camera and a monitor display. A paper map is captured using a web camera and tracked using its geometrical features. These features can be provided using the available data from Geographical Information Systems (GIS) or automatically extracted from the texture. The map is then matched with the reference map in database. When the map is matched, we can overlay the simulation on how the green space will change due to the existence of new train stations on a new location inputted by the user.

Loss of Representativeness of the Fixed Incore Instrumentation of the EPR™ Reactor

2014 ◽  
Author(s):  
Brice Jardiné ◽  
Olivier Bougeant ◽  
Maxime Pfeiffer
Keyword(s):  
Power Distribution ◽  
Power Level ◽  
Nucleate Boiling ◽  
Inlet Temperature ◽  
Fuel Loading ◽  
Calculation Algorithm ◽  
The Core ◽  
On Line ◽  
The Difference ◽  
Online Reconstruction

The EPR™ reactor features a fixed incore instrumentation, composed of 72 Self Powered Neutron Detectors (SPND), that provides the online reconstruction of the core maximum Linear Power Density (LPD) and minimum Departure from Nucleate Boiling Ratio (DNBR). The Instrumentation and Control (I&C) systems of the EPR™ reactor use this online reconstruction in surveillance and protection functions. The onsite thresholds of those I&C functions have to take into account all the uncertainties affecting the online reconstruction of core power distribution measured by SPNDs. One of these uncertainties is the so-called Loss Of Representativeness (LOR). This uncertainty is defined as the difference between the LPD (respectively DNBR) physical value and the LPD (respectively DNBR) computed value using SPND signals. The LOR parameter is mostly linked to the difference between the core power distribution at the time where SPNDs are calibrated and the core power distribution at the time where their signals are used. For the DNBR, LOR also takes into account the use of a simplified on-line DNBR calculation algorithm. A statistical approach is used in order to define this uncertainty. The analysis is based on the evaluation of different sets of core power distributions generated thanks to random drawings of the plant state parameters (including power level, core inlet temperature, pressure, control rod insertion and xenon distribution). The sets of core configurations representative of normal plant operation are used to define the surveillance thresholds. The sets representative of accidental transients (for which the LPD and DNBR protections are claimed) are used to define the protection thresholds. The analysis of LOR values provides an envelop probability law covering a minimum of 95% of LOR values. In order to derive the on-site threshold for LPD and DNBR, a Monte Carlo method is used to propagate the LOR probability law and the other uncertainties. Sensitivity calculations have been performed in order to cover a large spectrum of fuel loading patterns and to take into account SPND failures. In conclusion, this approach allows defining an optimized and robust set of thresholds for the on-line surveillance and protection system of EPR™ reactor.

Validity and Reliability of the Cosmed K2 to Measure Oxygen Uptake

1993 ◽  
Vol 18 (2) ◽  
pp. 197-206 ◽  
Author(s):  
F. Lothian ◽  
M. R. Farrally ◽  
C. Mahoney
Keyword(s):  
Oxygen Uptake ◽  
Key Words ◽  
Female Subject ◽  
Peak Oxygen Uptake ◽  
Variation Coefficient ◽  
Validity And Reliability ◽  
System A ◽  
On Line ◽  
The Difference ◽  
Line Oxygen

The validity and reliability of the Cosmed K2 was tested in comparison with a Quinton on-line oxygen analysing system. A female subject was monitored on a treadmill using a progressive protocol and was measured on three occasions with each system. It was found at low workloads that the Cosmed K2 and the Quinton gave the same measure of oxygen uptake; at higher workloads the Cosmed K2 gave lower values, and at peak oxygen uptake the Cosmed K2 measured 22.2% less than the Quinton. The difference in the measurement of [Formula: see text] at peak oxygen uptake was 13%. The Cosmed K2's measurement of [Formula: see text] showed a greater variability between trials (variation coefficient 3.0-11.4%) than the Quinton (variation coefficient 1.1-3.9%). Key words: Cosmed K2, validity, telemetry

On-Line Flank Wear Estimation Using an Adaptive Observer and Computer Vision, Part 2: Experiment

1993 ◽  
Vol 115 (1) ◽  
pp. 37-43 ◽  
Author(s):  
Jong-Jin Park ◽  
A. Galip Ulsoy
Keyword(s):  
Computer Vision ◽  
Flank Wear ◽  
Vision System ◽  
Adaptive Observer ◽  
Cutting Conditions ◽  
Model Parameters ◽  
Computer Vision System ◽  
Integrated Method ◽  
On Line ◽  
The Difference

An on-line flank wear estimation system, using the integrated method presented in Part 1 of the paper, is implemented in a laboratory environment, and its performance is evaluated through turning experiments. A computer vision system is developed using an image processing algorithm, a commercially available computer vision system, and a microscopic lens. The developed algorithm is based on the difference between the intensity of the reflected light from a flank wear surface and that from the background. The difference is very significant and an appropriate selection of the intensity threshold level yields an acceptable binary image of the flank wear. This image is used by the vision computer for the calculation of the flank wear. The flank wear model parameters that need to be known a priori are determined through several preliminary experiments, or from data available in the literature. Cutting conditions are selected to satisfy the assumptions made on the design of the adaptive observer presented in Part 1. The resulting cutting conditions are typical of those used in finishing cutting operations. The integrated method is tested in turning experiments under both constant and time varying cutting conditions, and yields very accurate on-line estimation of the flank wear development.

Sign in / Sign up

Export Citation Format

Share Document