scholarly journals Data support of ship’s control system

2021 ◽  
pp. 71-75
Author(s):  
А.В. Соловьев ◽  
А.В. Чернышов ◽  
М.М. Чиркова
Keyword(s):  
Control Algorithm ◽  
External Environment ◽  
Control Device ◽  
Information Support ◽  
Dynamic Features ◽  
Insufficient Information ◽  
Additional Information ◽  
Emergency Situations ◽  
Information Components ◽  
State Of The Environment

В статье проводится анализ возможных ситуаций, которые могут стать причиной аварий и катастроф на водном транспорте и уменьшение которых возможно за счет увеличения информационных составляющих при формировании управления. Показано, что одной из причин формирования внештатных ситуаций у речных судов и морских, в прибрежных условиях плавания, может быть изменение динамических свойств объекта управления при изменении состояния внешней среды. Неучет этого фактора ведет к недостаточному информационному обеспечению авторулевого в системе «судно – авторулевой». Обосновывается введение в формуляр маневренных характеристик судна дополнительной информации о его динамических особенностях: возможных максимальных значений углов перекладки рулевых органов, меньше которых реакция судна на изменение управления может быть непредсказуема; размере и расположении областей пониженной управляемости объекта (которые могут появиться при некоторых сочетаниях состояния внешней среды, значения координат состояния судна и управления). Данные динамические особенности существенно зависят от конструкции корпуса судна, скорости перекладки рулевых органов, состояния внешней среды (глубины судового хода,) и должны учитываться при разработке алгоритма управления. This article analyzes the situations, which can cause accidents and catastrophes on water transport, and which reduction is possible due to increase of information components at formation of control. It is shown that one of the factors of formation of emergency situations at river and sea vessels, in coastal conditions of navigation, can be variability of object dynamics at change of external environment condition and insufficient information support of the automatic control device. Additional information: possible maximal values of steering angles, less than which the reaction of the vessel to changes in control may be unpredictable; size and location of areas of low controllability of the object. These dynamic features significantly depend on the state of the environment and should be taken into account when developing the control algorithm.

A Dynamic View of Global Integration and Local Responsiveness Framework

2018 ◽  
Vol 6 (8) ◽  
pp. 58
Author(s):  
Uyen-Minh Le ◽  
Tung-Shan Liao
Keyword(s):  
International Business ◽  
Business Management ◽  
External Environment ◽  
Dynamic Capability ◽  
International Strategy ◽  
Global Integration ◽  
Dynamic Features ◽  
Dynamic View ◽  
Concept Building ◽  
Strategy Types

Global-Integration and Local-Responsiveness (IR) framework with four pairs of external environment and appropriate international strategy types has contributed significantly to international business management. Nevertheless, the framework is still incomplete and lacks dynamic features. To deal with such limitations and enhance the theory, this paper, therefore, brings dynamic features regarding both environment and strategy into the IR grid. Under a dynamic capability angle with three steps of sensing, seizing and transforming [30], the dynamic global integration and local responsiveness framework – a new concept building for international business – would be explicated.

IMPLEMENTATIONS EMERGENCY RESPONSE SYSTEM IN CASE OF ACCIDENTS AND EMERGENCY SITUATIONS (ERA-GLONASS) FOR CARS AND TRUCKS IN UZBEKISTAN

2020 ◽  
Author(s):  
Akmal Rustamov
Keyword(s):  
Emergency Response ◽  
Call Center ◽  
Emergency Services ◽  
Main Idea ◽  
Emergency Situation ◽  
High Mountain ◽  
Additional Information ◽  
Emergency Situations ◽  
Emergency Response System ◽  
Response System

The paper addresses the problem of increasing transportation safety due to usage of new possibilities provided by modern technologies. The proposed approach extends such systems as ERA-GLONASS and eCall via service network composition enabling not only transmitting additional information but also information fusion for defining required emergency means as well as planning for a whole emergency response operation. The main idea of the approach is to model the cyber physical human system components by sets of services representing them. The services are provided with the capability of self- contextualization to autonomously adapt their behaviors to the context of the car-driver system. The approach is illustrated via an accident emergency situation response scenario. “ERA-GLONASS” is the Russian state emergency response system for accidents, aimed at improving road safety and reducing the death rate from accidents by reducing the time for warning emergency services. In fact, this is a partially copied European e Call system with some differences in the data being transmitted and partly backward compatible with the European parent. The principle of the system is quite simple and logical: in the event of an accident, the module built into the car in fully automatic mode and without human intervention determines the severity of the accident, determines the vehicle’s location via GLONASS or GPS, establishes connection with the system infrastructure and in accordance with the protocol, transfers the necessary data on the accident (a certain distress signal). Having received the distress signal, the employee of the call center of the system operator should call the on-board device and find out what happened. If no one answers, send the received data to Sistema-112 and send it to the exact coordinates of the team of rescuers and doctors, and the last one to arrive at the place is given 20 minutes. And all this, I repeat, without the participation of a person: even if people caught in an accident will not be able to independently call emergency services, the data on the accident will still be transferred. In this work intended to add some information about applying system project in Uzbek Roads especially mountain regions like “Kamchik” pass. The Kamchik Pass is a high mountain pass at an elevation of 2.306 m above the sea level, located in the Qurama Mountains in eastern Uzbekistan and its length is about 88km.The road to reach the pass is asphalted, but there are rough sections where the asphalt has disappeared. It’s called A373. The old road over the pass was by passed by a tunnel built in 1999. On the horizon, the snow-capped peaks of the Fan Mountains come into view. The pass is located in the Fergana Valley between the Tashkent and Namangan Regions.

Information support for expert evaluation of the states of the external environment

2020 ◽  
pp. 71-76
Author(s):  
Rasol Murtadha Najah
Keyword(s):  
Decision Making ◽  
Environmental Conditions ◽  
Fuzzy Inference ◽  
Environmental Parameters ◽  
Information Support ◽  
Expert Assessment ◽  
Fuzzy Variables ◽  
Decision Making Models ◽  
The Difference ◽  
State Of The Environment

This article discusses the application of methods to enhance the knowledge of experts to build a decision-making model based on the processing of physical data on the real state of the environment. Environmental parameters determine its ecological state. To carry out research in the field of expert assessment of environmental conditions, the analysis of known works in this field is carried out. The results of the analysis made it possible to justify the relevance of the application of analytical, stochastic models and models based on methods of enhancing the knowledge of experts — experts. It is concluded that the results of using analytical and stochastic objects are inaccurate, due to the complexity and poor mathematical description of the objects. The relevance of developing information support for an expert assessment of environmental conditions is substantiated. The difference of this article is that based on the analysis of the application of expert methods for assessing the state of the environment, a fuzzy logic adoption model and information support for assessing the environmental state of the environment are proposed. The formalization of the parameters of decision-making models using linguistic and fuzzy variables is considered. The formalization of parameters of decision-making models using linguistic and fuzzy variables was considered. The model’s description of fuzzy inference is given. The use of information support for environment state assessment is shown on the example of experts assessing of the land desertification stage.

scholarly journals Emergency: definitions, problems and solutions

2021 ◽  
Vol 17 (7) ◽  
pp. 15-19
Author(s):  
V.P. Мiroshnychenko
Keyword(s):  
External Environment ◽  
Emergency Situation ◽  
Anthropogenic Activity ◽  
Emergency Situations ◽  
Problems And Solutions ◽  
The Subject ◽  
Definition Of

Emergency situations constantly accompany the external environment and society bringing major material losses and human casualties. The definitions and general patterns for the development of emergency situations and their role in accidents and disasters were discussed. Actually, there is no single concept in the definition of an emergency. Based on the ana-lysis, the content of the subject was formulated: an emergency is a state of natural and anthropogenic activity in the external environment and society. The mechanism of the emergency situation development is presented. The reason for changing the normative definition of the concept of emergency situation has been substantiated.

THE ROLE OF THE IMPLEMENTATION OF THE CONTROLLING SYSTEM IN THE MANAGEMENT OF THE POTENTIAL OF THE COMPETITIVENESS OF THE ENTERPRISE

2017 ◽  
Author(s):  
Kateryna Lytvynenko ◽  
◽  
Kateryna Lytvynenko ◽  
Keyword(s):  
External Environment ◽  
Business Environment ◽  
Information Support ◽  
Management Tool ◽  
Enterprise Management ◽  
Controlling System ◽  
Enterprise Management System ◽  
General Business ◽  
Strategic Controlling

The article analyzes the role of introducing controlling in the management of the competitiveness potential of an enterprise in the internal and external markets. The main definitions of the term "controlling" are formulated. The main stages of controlling and its methodological support are determined. Controlling allows an enterprise to adapt to a constantly changing external environment and successfully survive in a competitive environment. The essence of controlling and its place in the enterprise management system can be considered from four approaches: functional, situational, process and systemic. At the same time, two types of controlling are distinguished, namely, operational and strategic, which form an integral controlling system that allows an enterprise to achieve its goals and results. The main purpose of strategic controlling as a management tool is to form the necessary information support and analytical base for the formation of a set of indicators (indicators) which will attest to the need for transformational changes, and about their effectiveness in the long term. With the help of the tools of operational controlling, a mechanism is formed that makes it possible to timely establish deviations from the planned path and correct the direction of development. The components of the controlling process can vary depending on the specifics of the activity and the goals of the company. The development of integration and globalization processes stimulates the development of enterprise transformation at certain stages of its life cycle. To correctly identify the transformation point, that is, to determine the set of control parameters that indicate the need for transformation, it is necessary to use the strategic controlling toolkit, which is designed to increase the competitiveness of the enterprise in the general business environment. Taking into account these development trends, strategic and tactical transformations as a tool for ensuring competitiveness and constant development in a dynamic external environment are a prerequisite for the development of a company.

scholarly journals Sub-optimality in motor planning is not improved by explicit observation of motor uncertainty

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Keiji Ota ◽  
Masahiro Shinya ◽  
Laurence T. Maloney ◽  
Kazutoshi Kudo
Keyword(s):  
Motor Planning ◽  
The Other ◽  
Insufficient Information ◽  
Reaching Task ◽  
Additional Information ◽  
Optimal Decisions ◽  
Decisions Under Risk ◽  
Motor Error ◽  
Better Than ◽  
Decision Tasks

Abstract To make optimal decisions under risk, one must correctly weight potential rewards and penalties by the probabilities of receiving them. In motor decision tasks, the uncertainty in outcome is a consequence of motor uncertainty. When participants perform suboptimally as they often do in such tasks, it could be because they have insufficient information about their motor uncertainty: with more information, their performance could converge to optimal as they learn their own motor uncertainty. Alternatively, their suboptimal performance may reflect an inability to make use of the information they have or even to perform the correct computations. To discriminate between these two possibilities, we performed an experiment spanning two days. On the first day, all participants performed a reaching task with trial-by-trial feedback of motor error. At the end of the day, their aim points were still typically suboptimal. On the second day participants were divided into two groups one of which repeated the task of the first day and the other of which repeated the task but were intermittently given additional information summarizing their motor errors. Participants receiving additional information did not perform significantly better than those who did not.

Analysis and forecast of wildfires using Copernicus data and services

2020 ◽  
Author(s):  
Claudia Vitolo ◽  
Francesca Di Giuseppe ◽  
Mark Parrington
Keyword(s):  
R Package ◽  
Management Service ◽  
The European Union ◽  
Climate Data ◽  
Related Data ◽  
Emergency Situations ◽  
Mitigation And Adaptation ◽  
Efficient Management ◽  
Monitoring Service ◽  
State Of The Environment

<p>Copernicus is the European Union’s Earth Observation programme aiming at monitoring and forecasting the state of the environment on land, sea and in the atmosphere, in order to support climate change mitigation and adaptation strategies, the efficient management of emergency situations and improve the security of every citizen.</p><p>Copernicus has created a wealth of datasets related to the forecasting of wildfire danger as well as the detection of wildfire events and related emissions in the atmosphere. These products contribute to the operational services provided by the Copernicus Emergency Management Service (CEMS) and the Copernicus Atmosphere Monitoring Service (CAMS) and consists of real time forecasts as well as historical datasets based on ECMWF reanalysis database ERA5. Most of these data are available through the Copernicus Climate Data Store (CDS) and the Global Wildfire Information System (GWIS).</p><p>We will present the complete wildfire-related data offering under the Copernicus CDS and GWIS and showcase how data can be post-processed and visualised using the caliver R package.</p>

Driver Braking Performance in Stopping Sight Distance Situations

2000 ◽  
Vol 1701 (1) ◽  
pp. 9-16 ◽  
Author(s):  
Daniel B. Fambro ◽  
Rodger J. Koppa ◽  
Dale L. Picha ◽  
Kay Fitzpatrick
Keyword(s):  
Emergency Situation ◽  
Practical Significance ◽  
Braking Performance ◽  
Additional Information ◽  
Emergency Situations ◽  
Sight Distance ◽  
Directional Control ◽  
Average Maximum ◽  
Stopping Sight Distance ◽  
Maximum Deceleration

Assumed driver braking performance in emergency situations is not consistent in the published literature. A 1955 study stated that in an emergency situation “it is suspected that drivers apply their brakes as hard as possible.” This idea differs from a 1984 report that states drivers will “modulate”their braking to maintain directional control. Thus, additional information is needed about driver braking performance when an unexpected object is in the roadway. In this research driver braking distances and decelerations to both unexpected and anticipated stops were measured. The study design allowed for differences in vehicle handling and driver capabilities associated with antilock braking systems (ABS), wet and dry pavement conditions, and the effects of roadway geometry. Vehicle speeds, braking distances, and deceleration profiles were determined for each braking maneuver. The research results show that ABS result in shorter braking distances by as much as 30 m at 90 km/h. These differences were most noticeable on wet pavements where ABS resulted in better control and shorter braking distances. Braking distances on horizontal curves were slightly longer than on tangent sections; however, they were not large enough to be of practical significance. Maximum deceleration during braking is independent of initial velocity, at least in the range of speeds tested. Differences were noted in individual driver performance in terms of maximum deceleration. Although maximum deceleration was equal to the pavement’s coefficient of friction for some drivers, the average maximum deceleration was about 75 percent of that level. Overall, drivers generated maximum decelerations from 6.9 to 9.1 m/s2. The equivalent constant deceleration also varied among drivers. Based on the 90-km/h data, 90 percent of all drivers without ABS chose equivalent constant decelerations of at least 3.4 m/s2 under wet conditions, and 90 percent of all drivers with ABS chose equivalent constant deceleration of at least 4.7 m/s2 on dry pavements.

Research on Control Effectiveness of Semi-Active MR-TMD to some Coal Gas Manufacturing Plant

2011 ◽  
Vol 117-119 ◽  
pp. 3-8
Author(s):  
An Zhi Yan ◽  
Qi Kong ◽  
Jing Jing Lu
Keyword(s):  
Control Algorithm ◽  
Control Device ◽  
Structural Vibration ◽  
Model Structure ◽  
Control Effect ◽  
Structural Vibration Control ◽  
Control Effectiveness ◽  
Magneto Rheological ◽  
Factory Building ◽  
Better Than

A new semi-active MR-TMD control device, which is consisted of TMD which take the gasifier as the damper mass and a magneto-rheological damper, was proposed to solve the problem of factory building vibration when the gasifier is working in it. The feasibility and effectiveness of semi-active MR-TMD control system for structural vibration control under rectangular periodic excitations were simulated and analyzed by adopting one semi-active control algorithm proposed by the author. The control effect of semi-active MR-TMD, passive TMD and active AMD were compared by adopting the same model structure. Numerical simulations show that the damping performance of using semi-active MR-TMD control is better than that of using passive TMD control and active AMD control; the displacement and acceleration of the structure’s each floor have decreased significantly. It also indicates that the semi-active controlling method is available.

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