An enhanced INS/GNSS integrated system with ODO for train positioning

2021 ◽  
Author(s):  
Yang Meng ◽  
Jingxiao Feng ◽  
Wei Wang
Keyword(s):  
Integrated System ◽  
Train Positioning

GNSS/IMU/Odometer based Train Positioning

2020 ◽  
Author(s):  
Qing Li ◽  
Robert Weber
Keyword(s):  
Kalman Filter ◽  
Urban Areas ◽  
Moving Average ◽  
Accurate Determination ◽  
Integrated System ◽  
Single Frequency ◽  
Integration Algorithm ◽  
Speed Sensor ◽  
Train Positioning ◽  
Train Tracks

<p>Usually train positioning is realized via counting wheel rotations (Odometer), and correcting at fixed locations known as balises. A balise is an electronic beacon or transponder placed between the rails of a railway as part of an automatic train protection (ATP) system. Balises constitute an integral part of the European Train Control System, where they serve as “beacons” giving the exact location of a train. Unfortunately, balises are expensive sensors which need to be placed over about 250 000 km of train tracks in Europe.</p><p>Therefore, recently tremendous efforts aim on the development of satellite-based techniques in combination with further sensors to ensure precise train positioning. A fusion of GNSS receiver and Inertial Navigation Unit (IMU) observations processed within a Kalman Filter proved to be one of potential optimal solutions for train traction vehicles positioning.</p><p>Today several hundreds of trains in Austria are equipped with a single-frequency GPS/GLONASS unit. However, when the GNSS signal fails (e.g. tunnels and urban areas), we expect an outage or at least a limited positioning quality. To yet ensure availability of a reliable trajectory in these areas, the GNSS sensor is complemented by a strapdown IMU platform and a wheel speed sensor (odometer).</p><p>In this study a filtering algorithm based on the fusion of three sensors GPS, IMU and odometer is presented, which enables a reliable train positioning performance in post-processing. Odometer data are counts of impulses, which relate the wheel’s circumference to the velocity and the distance traveled by the train. This odometer data provides non-holonomic constraints as one-dimensional velocity updates and complements the basic IMU/GPS navigation system. These updates improve the velocity and attitude estimates of the train at high update rates while GPS data is used to provide accurate determination in position with low rates. In case of GNSS outages, the integrated system can switch to IMU/odometer mode. Using the exponentially weighted moving average method to estimate of measurement noise for odometer velocity helps to construct measurement covariance matrices. In the presented examples an IMU device, a GPS receiver and an Odometer provide the data input for the loosely coupled Kalman Filter integration algorithm. The quality of our solution was tested against trajectories obtained with the software iXCOM-CMD (iMAR) as reference.</p>

FR-IR Molecular Microanalysis System

1990 ◽  
Vol 48 (2) ◽  
pp. 270-271
Author(s):  
John A. Reffner ◽  
William T. Wihlborg
Keyword(s):  
Fourier Transform ◽  
Fourier Transform Infrared ◽  
Integrated System ◽  
Morphological Examination ◽  
Fully Integrated ◽  
Ir Microscopy ◽  
Normal Functions ◽  
Infrared Microspectroscopy ◽  
Infrared Spectral ◽  
Ft Ir

The IRμs™ is the first fully integrated system for Fourier transform infrared (FT-IR) microscopy. FT-IR microscopy combines light microscopy for morphological examination with infrared spectroscopy for chemical identification of microscopic samples or domains. Because the IRμs system is a new tool for molecular microanalysis, its optical, mechanical and system design are described to illustrate the state of development of molecular microanalysis. Applications of infrared microspectroscopy are reviewed by Messerschmidt and Harthcock.Infrared spectral analysis of microscopic samples is not a new idea, it dates back to 1949, with the first commercial instrument being offered by Perkin-Elmer Co. Inc. in 1953. These early efforts showed promise but failed the test of practically. It was not until the advances in computer science were applied did infrared microspectroscopy emerge as a useful technique. Microscopes designed as accessories for Fourier transform infrared spectrometers have been commercially available since 1983. These accessory microscopes provide the best means for analytical spectroscopists to analyze microscopic samples, while not interfering with the FT-IR spectrometer’s normal functions.

Fate of sperm membrane in fertilized ova

1993 ◽  
Vol 51 ◽  
pp. 40-41
Author(s):  
Frank J. Longo
Keyword(s):  
Electron Microscopy ◽  
Electrical Activity ◽  
Sea Urchins ◽  
Morphological Changes ◽  
Integrated System ◽  
Electrophysiological Recording ◽  
Experimental Conditions ◽  
The Status ◽  
Sperm Membrane ◽  
Temporal And Spatial

Measurement of the egg's electrical activity, the fertilization potential or the activation current (in voltage clamped eggs), provides a means of detecting the earliest perceivable response of the egg to the fertilizing sperm. By using the electrical physiological record as a “real time” indicator of the instant of electrical continuity between the gametes, eggs can be inseminated with sperm at lower, more physiological densities, thereby assuring that only one sperm interacts with the egg. Integrating techniques of intracellular electrophysiological recording, video-imaging, and electron microscopy, we are able to identify the fertilizing sperm precisely and correlate the status of gamete organelles with the first indication (fertilization potential/activation current) of the egg's response to the attached sperm. Hence, this integrated system provides improved temporal and spatial resolution of morphological changes at the site of gamete interaction, under a variety of experimental conditions. Using these integrated techniques, we have investigated when sperm-egg plasma membrane fusion occurs in sea urchins with respect to the onset of the egg's change in electrical activity.

Processing of Histopathological Data

1971 ◽  
Vol 10 (03) ◽  
pp. 142-147
Author(s):  
M. RENAUD ◽  
M. AQARQ ◽  
R. GERARD-MARCHANT ◽  
M. WOLFF-TERROINE
Keyword(s):  
Integrated System ◽  
Ease Of Use ◽  
Financial Data ◽  
Identification Number ◽  
Processing Data ◽  
Cancer Hospital

A method is presented for processing data from the histopathological laboratory of a cancer hospital. Emphasis is laid on the ease of use, the connection of medical, administrative and financial data, and the strictness of control of patient’s identification number. The system can be used separately; it is also a module for a large integrated system covering all the activities of the hospital.

STRATEGI OPTIMALISASI RETRIBUSI PASAR DI PEMERINTAH KABUPATEN BANTUL

2019 ◽  
Vol 6 (2) ◽  
pp. 147-156
Author(s):  
Lilik Ambarwati
Keyword(s):  
Swot Analysis ◽  
Descriptive Analysis ◽  
Integrated System ◽  
Routine Administration ◽  
Strategy Planning ◽  
Data Validity ◽  
Implementation Of The Strategy

The theme of this study is how the strategy planning in optimizing market levy in Bantul Regency. During 2012-2015, the levy achievement always exceeded the market target, but based on the potential data from Kepala Seksi Pendapatan in Kantor Pengelolaan Pasar, the specified target is too low, so that, the market levy still has potential to be optimized. Therefore, the aim of this study is to formulate the strategy to optimize market levy in Bantul Regency.The data used in this study was obtained from employees of the Kantor Pengelolaan Pasar both in the field and administration sector, also traders in Bantul district markets. The data was obtained through a questionnaire distributed to 34 employees of Kantor Pengelolaan Pasar, and interviews with market traders. The analysis mehod used is descriptive analysis and SWOT analysis.Based on the SWOT analysis, it is obtained the strategies for optimizing market levy in quadrant III by reducing the weaknesses to rise the opportunities. The implementation of the strategy, by the Kantor Pengelolaan Pasar, firstly by committing traders data validity, which is continued by collecting in an integrated system, that is a book keeping system. The officer made the routine administration after collecting, and traders who often do not pay the levy (in arrears) are required to pay the levy directly to BPD DIY.

Memperkuat Daya Saing Bank Syariah Dengan Meningkatkan Kemampuan Teknologi Informasi

Liquidity ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 32-41
Author(s):  
Amrizal Amrizal
Keyword(s):  
Information System ◽  
Credit Card ◽  
Banking Industry ◽  
Integrated System ◽  
Integrated Systems ◽  
Islamic Banks ◽  
Electronic Money ◽  
Electronic Transactions ◽  
Excellent Service ◽  
Debit Cards

Banking industry is very tight competition in all aspects. Results review from some literatures: journals and empirical data indicates that the banking industry has been applied information technology in order to provide excellent service to customers in the form of electronic transactions such as ATM, sms banking, e-commerce and so forth. Based on Bank Indonesia reports, the type of electronic transaction has been growing very rapidly between the transaction and Bilyetgiro Elekteronik Checks, ATM, Credit Card, Account Card Based (ATM and Debit Cards), Electronic Money, Delivery Chanel and RTGS. Those above transactions are relating to the Technology Information System and Integrated System. Integrated system is the combination of Hardskill which focus on knowledge and more to the integrity softskill (shidiq, trustworthy, tablig, fathonah). Islamic banks are ready to face competition both nationally and internationally, primarily face competition from the aspect of Integrated Systems. Bank Syariah Mandiri (BSM) developed e-banking features on an ongoing basis, among others

SIGIEC application: an integrated system for management of coastal erosion

2016 ◽  
Vol 38 ◽  
pp. 51-54 ◽  
Author(s):  
Alessandro Greco ◽  
Davide Furci ◽  
Federica Sbrana ◽  
Rocco Dominici
Keyword(s):  
Coastal Erosion ◽  
Integrated System
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