Calculation of the reliability of electrical products of telemetry systems data acquisition devices

2020 ◽  
pp. 3-9
Author(s):  
Э.М. Аббасов ◽  
А.Б. Семенов
Keyword(s):  
Data Acquisition ◽  
Stationary Flow ◽  
Automated System ◽  
Exponential Law ◽  
Time Between Failures ◽  
Independent Events ◽  
Reliability Calculation ◽  
Source Data ◽  
Calculation System ◽  
Independent Calculation

На основе анализа требований по надежности к электрорадиоизделиям устройств сбора данных в телеметрических системах проведена расчетная оценка показателей надежности элементным методом с использованием автоматизированной системы расчета надежности. Исследованы дополнительные возможности автоматизированной системы: разбиение исходных данных на независимые проекты расчета. Расчетная оценка выполнена для экспоненциального закона распределения времени между отказами, стационарного потока отказов и предположения, что отказы являются событиями случайными и независимыми. Based on an analysis of the reliability requirements for electrical products of data acquisition devices in telemetry systems, a reliability rating is calculated in accordance by the elemental method using an automated reliability calculation system. The additional capabilities of the automated system are investigated: splitting the source data into independent calculation projects. A calculation estimate is made for the exponential law of the distribution of time between failures, the stationary flow of failures, and the assumption that failures are random and independent events.

scholarly journals Development and evaluation of an automated system for testing current meters

2016 ◽  
Vol 20 (2) ◽  
pp. 181-187 ◽  
Author(s):  
Ezequiel Saretta ◽  
Antonio P. de Camargo ◽  
Tarlei A. Botrel ◽  
Marinaldo F. Pinto ◽  
Geancarlo T. Katsurayama ◽  
...  
Keyword(s):  
User Interface ◽  
Data Acquisition ◽  
Flow Velocity ◽  
Reference Value ◽  
Vertical Axis ◽  
Automated System ◽  
Step Motor ◽  
Simple Task ◽  
Rivers And Streams

ABSTRACT Current meters are equipment widely used for estimating flow velocity in rivers and streams. Periodic calibrations of current meters are important to ensure the quality of measurements, but the required testing facilities are complex and only available in a few institutions. However, advances in electronics and automation may contribute to developing simple and reliable calibration systems. Thus, this study aimed to develop an automated system for testing current meters, which consisted of a trapezoidal channel, a step motor, a tow car and a management system, composed of a supervisory application and microprocessed modules to control the motor and the data acquisition. Evaluations of the displacement velocity showed that it matched the reference value up to 1.85 m s-1 for a vertical-axis current meter and 2.3 m s-1 for a horizontal-axis one. The developed system showed reliability during tests, for both current meter movement and data acquisition. The management of the system based on the developed modules and the supervisory application improved its user interface, turning all the procedure into a simple task.

scholarly journals Analogue aerial-photopraphs external orientation reconstruction based on geoportal data

2011 ◽  
Vol 30 (3) ◽  
pp. 13-18
Author(s):  
Piotr Dzieszko
Keyword(s):  
Information Systems ◽  
High Resolution ◽  
Data Acquisition ◽  
Geographical Information Systems ◽  
Fast Growth ◽  
Geographical Information ◽  
Source Data ◽  
Effective Choice ◽  
Field Works ◽  
Very High

Analogue aerial-photopraphs external orientation reconstruction based on geoportal data For acquisition of source data for geoinformation analyses is necessary to do some field works. This way of data acquisition is time-consuming. In this case, photogrammetric and remote sensed methods can be more effective choice. Especially orthophotomap extracting is more effective process in creation of geodata. It is good foundation for further analysis and nice extension of existing geographical information systems. Despite fast growth of photogrammetry there are plenty of analogue, archival airphotos which can be used for geoinformation analysis. They are quiet up to date and scanned in very high resolution which means they can be used for really reliable analysis. The problem is very important because many of analogue, archival air photos do not contain photogrammetric warp. The aim of this paper is expression of applicability of geoportal webpage, which is part of INSPIRE directive, that can be used for external orientation reconstruction when there is no other georeference data.

scholarly journals Photo-Interpretation, Digital Mapping, and the Evolution of Glaciers in Glacier National Park, B.C.

1986 ◽  
Vol 8 ◽  
pp. 27-30 ◽  
Author(s):  
André Champoux ◽  
C.S.L. Ommanney
Keyword(s):  
Data Acquisition ◽  
National Park ◽  
Automated System ◽  
Glacier National Park ◽  
Photo Interpretation ◽  
Digital Mapping ◽  
Data Acquisition And Processing ◽  
New Procedures

The inventory of Glacier National Park, B.C., has provided an opportunity to test a number of new procedures which might be applied to future Canadian glacier inventories. The objectives of this particular study were to complete a tripartite inventory based on available map and photo sources and develop an automated system of data acquisition and processing. The conjunction of the two has permitted an analysis of the evolution of the glaciers in this area during the last 100 years. The techniques used and a summary of the results are reported.

Study on Relation of Structural Reliability Calculation and Fuzzy Mathematics

2011 ◽  
Vol 243-249 ◽  
pp. 5739-5744 ◽  
Author(s):  
Zhong Hua Wen ◽  
Juan Zhou ◽  
Ming Xiao Jia
Keyword(s):  
Reliability Index ◽  
Structural Reliability ◽  
Scientific Evidence ◽  
Degree Theory ◽  
Fuzzy Mathematics ◽  
Basic Variable ◽  
Statistical Parameters ◽  
Variable Source ◽  
Reliability Calculation ◽  
Source Data

Randomicity of basic variable results in the problem of structural reliability. A series of statistical parameters is applied in reliability calculation. Statistical parameters are attained by the statistics and analysis of source data of basic variable. However the basic variable source data is imperfect for a lot of structure. On the other hand, the relation of reliability index and basic variable is an important issue in reliability calculation. The two matters are solved in this paper by fuzzy mathematics. First, the matter of statistic data scarcity of load and resistibility and offered scientific evidence for estimation of distributing type of load and resistibility it solved by grey forecast; Second , the correlate degree of reliability index and load is calculated by correlate degree theory which can provide scientific evidence for security inspect of project.

Robotics for Long-Term Monitoring

2002 ◽  
Author(s):  
Sarkis Shahin ◽  
Celso Duran
Keyword(s):  
Data Acquisition ◽  
The United States ◽  
Automated System ◽  
Hazardous Substance ◽  
Atmospheric Conditions ◽  
Structural Deterioration ◽  
Report Data ◽  
Long Term Monitoring ◽  
Term Monitoring

While long-term monitoring and stewardship means many things to many people, DOE has defined it as: “The physical controls, institutions, information, and other mechanisms needed to ensure protection of people and the environment at sites where DOE has completed or plans to complete cleanup (e.g., landfill closures, remedial actions, and facility stabilization).” Across the United States, there are thousands of contaminated sites with multiple contaminants released from multiple sources where contaminants have transported and commingled. The U.S. government and U.S. industry are responsible for most of the contamination and are landowners of many of these contaminated properties. These sites must be surveyed periodically for various criteria including structural deterioration, water intrusion, integrity of storage containers, atmospheric conditions, and hazardous substance release. The surveys, however, are intrusive, time-consuming, and expensive and expose survey personnel to radioactive contamination. In long-term monitoring, there’s a need for an automated system that will gather and report data from sensors without costly human labor. In most cases, a SCADA (Supervisory Control and Data Acquisition) unit is used to collect and report data from a remote location. A SCADA unit consists of an embedded computer with data acquisition capabilities. The unit can be configured with various sensors placed in different areas of the site to be monitored. A system of this type is static, i.e., the sensors, once placed, cannot be moved to other locations within the site. For those applications where the number of sampling locations would require too many sensors, or where exact location of future problems is unknown, a mobile sensing platform is an ideal solution. In many facilities that undergo regular inspections, the number of video cameras and air monitors required to eliminate the need for human inspections is very large and far too costly. HCET’s remote harsh-environment surveyor (RHES) is a robotic platform with SCADA capabilities equipped with a sonar-imaging scanner, a high-resolution color CCD camera, and various combinations of sensors. The RHES is controlled remotely via a PC. This paper will discuss the development and application of this system.

An Open-Source Data Acquisition and Manual Segmentation System for Hand Gesture Recognition based on EMG

2021 ◽  
Author(s):  
Jonathan Zea ◽  
Marco E. Benalcazar ◽  
Lorena Isabel Barona Lopez ◽  
Angel Leonardo Valdivieso Caraguay
Keyword(s):  
Data Acquisition ◽  
Open Source ◽  
Gesture Recognition ◽  
Hand Gesture Recognition ◽  
Hand Gesture ◽  
Manual Segmentation ◽  
Open Source Data ◽  
Source Data

Choosing deblending strategies for simultaneous source data acquisition

2017 ◽  
Author(s):  
Shangli Ou ◽  
Xiujun Yang ◽  
Gary Szurek ◽  
Natalie Hutzley ◽  
Dennis Willen ◽  
...  
Keyword(s):  
Data Acquisition ◽  
Source Data ◽  
Simultaneous Source
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