scholarly journals О подходах к созданию системы автоматизированного мониторинга остойчивости судна

Author(s):  
A.N. Suslov ◽  
O.V. Odegova ◽  
S. Tanshi

В работе предлагаются подходы к созданию системы автоматизированного мониторинга остойчивости судна, что является актуальным в связи с существующей вероятностью опрокидывания неаварийного судна на волнении при эксплуатации рыболовных судов, судов вспомогательного флота, а также судов, осуществляющих различные грузоподъемные операции. Существующие подходы по оценке остойчивости неповрежденного судна ориентированы на использование ряда приближенных зависимостей. В результате величины метацентрических высот оказываются намного выше действительных, особенно на слабом волнении. По мнению авторов в основе системы оперативной оценки остойчивости судна должны выступать величины, на которые можно реально опереться при анализе текущего состояния судна, а именно параметры остойчивости судна, измеряемые в режиме реального времени непосредственно в процессе навигации. На основании данных, получаемых от предлагаемой авторами системы, в режиме неаварийной эксплуатации судоводитель, получив предупреждение, может изменить параметры движения судна (или подъема груза) на безопасные. В случае аварийной ситуации (затопление отсеков) оповещение от системы позволят предупредить судоводителя о необходимости пассажирам и экипажу срочно покинуть аварийное судно. Предлагаемые в данной статье подходы определяют новые направления научных исследований в теории корабля, проектировании и эксплуатации судов.The article describes new approaches for stability automation monitoring system creation. This theme is actual in a view of the capsize probability for several types of vessels during the exploitation in a real sea waves condition. Such condition is very habitual for fishing vessels as well as for auxiliary fleet vessels and also it can take place during the vessel balanced hoisting. Now all methods to solve the question of dynamic stability are based on approximate calculations which gives the metacentric height value higher than it might be in real. Article authors are of opinion, that it is necessary to use the real current figures which will be the foundation of current vessel condition calculations made during the exploitation in a real time. Based on information which could be received from the vessels automation system described by authors, the crew could get a warning if intact stability conditions are close to limits. It gives a possibility to change parameters of the current situation of the vessel to avoid any risk of the capsizing. Authors approaches define the new direction for research investigation in a theory of the vessel design and safety exploitation.

2012 ◽  
Vol 203 ◽  
pp. 180-183
Author(s):  
Chun Miao Xi

Describes how to implement the automation system clock device synchronization, real-time monitoring system, and described the effect of the application.


2020 ◽  
Vol 8 (7) ◽  
pp. 499
Author(s):  
Jesús Alvite-Castro ◽  
José A. Orosa ◽  
Diego Vergara ◽  
Ángel M. Costa ◽  
Rebeca Bouzón

The first technical factor involved in maritime accidents is related to the lack of intact stability. The current stability criterion, based on fixing a minimum value for each of the different static and dynamic righting arms, is not regarded as satisfactory. Correspondingly, a new criterion based on the transverse metacentric height, dynamic stability up to 70° heel, and critical wave height were considered for fishing vessels less than or equal to 24 m in length. This can be understood as an improvement on the Rahola criterion or an equivalent criterion of dead ship capsize mode, as assumed in the second-generation stability criteria. The proposed criterion, when used in a real case study on the Galician fishing grounds, achieved higher precision. The few vessels that did not comply with the proposed requirement can continue to operate in the area if the Meteorological and Oceanographic Coefficient (CMO) is considered at the time we employ our criteria. As a result, their activity is limited to only a few fishing grounds where adequate weather conditions exist. Finally, the methodology developed can be easily extrapolated to other regions in the world.


Classrooms are learning spaces that are found in educational institutions of all kinds, from preschools to universities. The refining classroom-based activities like real time-based attendance monitoring and creation of a Knowledgebase are very important. Taking the accurate attendance of students at each classroom and keeping it on record is an uphill battle. Today, all teachers are taking the presence of students manually and marks it on paper. And finally, they enter data in the computer. So, this paper deals with a smart real-time human detection based attendance monitoring system. In this project-based course, a cloud-based weather classroom monitoring system that streams attendance and power consumption over the internet to the user at a remote location. The system is designed in a way that whenever the temperature exceeds a certain limit and when the brightness level decreases, the device automatically sends an email notification. This project is a cloud-based automation system which automatically switches ON and OFF the light, fan based on the presence of human.


2015 ◽  
Vol 1 (1) ◽  
pp. 37-45
Author(s):  
Irwansyah Irwansyah ◽  
Hendra Kusumah ◽  
Muhammad Syarif

Along with the times, recently there have been found tool to facilitate human’s work. Electronics is one of technology to facilitate human’s work. One of human desire is being safe, so that people think to make a tool which can monitor the surrounding condition without being monitored with people’s own eyes. Public awareness of the underground water channels currently felt still very little so frequent floods. To avoid the flood disaster monitoring needs to be done to underground water channels.This tool is controlled via a web browser. for the components used in this monitoring system is the Raspberry Pi technology where the system can take pictures in real time with the help of Logitech C170 webcam camera. web browser and Raspberry Pi make everyone can control the devices around with using smartphone, laptop, computer and ipad. This research is expected to be able to help the users in knowing the blockage on water flow and monitored around in realtime.


2014 ◽  
Author(s):  
Rozaimi Ghazali ◽  
◽  
Asiah Mohd Pilus ◽  
Wan Mohd Bukhari Wan Daud ◽  
Mohd Juzaila Abd Latif ◽  
...  

Author(s):  
Jia Hua-Ping ◽  
Zhao Jun-Long ◽  
Liu Jun

Cardiovascular disease is one of the major diseases that threaten the human health. But the existing electrocardiograph (ECG) monitoring system has many limitations in practical application. In order to monitor ECG in real time, a portable ECG monitoring system based on the Android platform is developed to meet the needs of the public. The system uses BMD101 ECG chip to collect and process ECG signals in the Android system, where data storage and waveform display of ECG data can be realized. The Bluetooth HC-07 module is used for ECG data transmission. The abnormal ECG can be judged by P wave, QRS bandwidth, and RR interval. If abnormal ECG is found, an early warning mechanism will be activated to locate the user’s location in real time and send preset short messages, so that the user can get timely treatment, avoiding dangerous occurrence. The monitoring system is convenient and portable, which brings great convenie to the life of ordinary cardiovascular users.


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