scholarly journals The reliability evaluation of the water surface remote monitoring satellite equipment

2021 ◽  
Vol 5 (4) ◽  
pp. 242-250
Author(s):  
A. D. Gubarev ◽  
I. L. Yaschuk ◽  
Ya. V. Khilinskaya
Keyword(s):  
Remote Monitoring ◽  
Water Surface ◽  
System Analysis ◽  
Degradation Process ◽  
Space Environment ◽  
Monitoring Methods ◽  
Software Complex ◽  
Parametric Reliability ◽  
Spectral Coefficients ◽  
Object Of Study

The work is devoted to the reliability and effectiveness of the water surface remote monitoring space system. Analysis of existing monitoring methods has shown a high potential for using nanosatellites to solve the problem. As an object of study, 3U CubeSat was chosen with a payload placed on board in the form of a hyperspectral camera. To assess the reliability of the system, a mathematical model on the failure rates of subsystems is proposed. The structural and parametric reliability of the object was investigated in the Windchill Risk and Reliability software complex, taking into account the cyclogram of work and the specifics of the degradation process of individual components due to the influence of an aggressive space environment. To assess the effectiveness of the nanosatellite application, the dependence of the accuracy of determining water pollution on the operability of the photodetector was analyzed, since the photodetector is the central link in the transmission of optical information. The effective measurement of brightness spectral coefficients over the entire service life of nanosatellite is also obtained. Minimum required number of operable pixels was identified for monitoring the water surface with sufficient accuracy and reliability.

scholarly journals In-Situ Pipeline Monitoring System Design for Identifying and Locating Damaging Activities Based on Wireless Sensor Network

2020 ◽  
pp. 33-46
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
Monitoring System ◽  
Remote Monitoring ◽  
Base Station ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Monitoring Methods ◽  
Pipeline Monitoring

Due to the recent advancements in the fields of Micro Electromechanical Sensors (MEMS), communication, and operating systems, wireless remote monitoring methods became easy to build and low cost option compared to the conventional methods such as wired cameras and vehicle patrols. Pipeline Monitoring Systems (PMS) benefit the most of such wireless remote monitoring since each pipeline would span for long distances up to hundreds of kilometers. However, precise monitoring requires moving large amounts of data between sensor nodes and base station for processing which require high bandwidth communication protocol. To overcome this problem, In-Situ processing can be practiced by processing the collected data locally at each node instead of the base station. This Paper presents the design and implementation of In-situ pipeline monitoring system for locating damaging activities based on wireless sensor network. The system built upon a WSN of several nodes. Each node contains high computational 1.2GHz Quad-Core ARM Cortex-A53 (64Bit) processor for In-Situ data processing and equipped in 3-axis accelerometer. The proposed system was tested on pipelines in Al-Mussaib gas turbine power plant. During test knocking events are applied at several distances relative to the nodes locations. Data collected at each node are filtered and processed locally in real time in each two adjacent nodes. The results of the estimation is then sent to the supervisor at base-station for display. The results show the proposed system ability to estimate the location of knocking event.

scholarly journals Towards an integrated soil moisture drought monitor for East Africa

2012 ◽  
Vol 9 (4) ◽  
pp. 4587-4631 ◽  
Author(s):  
W. B. Anderson ◽  
B. F. Zaitchik ◽  
C. R. Hain ◽  
M. C. Anderson ◽  
M. T. Yilmaz ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Soil Moisture ◽  
East Africa ◽  
Remote Monitoring ◽  
Vegetation Cover ◽  
Land Surface ◽  
Microwave Remote Sensing ◽  
Surface Model ◽  
Monitoring Methods ◽  
Data Scarcity

Abstract. Drought in East Africa is a recurring phenomenon with significant humanitarian impacts. Given the steep climatic gradients, topographic contrasts, general data scarcity, and, in places, political instability that characterize the region, there is a need for spatially distributed, remotely derived monitoring systems to inform national and international drought response. At the same time, the very diversity and data scarcity that necessitate remote monitoring also make it difficult to evaluate the reliability of these systems. Here we apply a suite of remote monitoring techniques to characterize the temporal and spatial evolution of the 2010–2011 Horn of Africa drought. Diverse satellite observations allow for evaluation of meteorological, agricultural, and hydrological aspects of drought, each of which is of interest to different stakeholders. Focusing on soil moisture, we apply triple collocation analysis (TCA) to three independent methods for estimating soil moisture anomalies to characterize relative error between products and to provide a basis for objective data merging. The three soil moisture methods evaluated include microwave remote sensing using the Advanced Microwave Scanning Radiometer – Earth Observing System (AMSR-E) sensor, thermal remote sensing using the Atmosphere-Land Exchange Inverse (ALEXI) surface energy balance algorithm, and physically-based land surface modeling using the Noah land surface model. It was found that the three soil moisture monitoring methods yield similar drought anomaly estimates in areas characterized by extremely low or by moderate vegetation cover, particularly during the below-average 2011 long rainy season. Systematic discrepancies were found, however, in regions of moderately low vegetation cover and high vegetation cover, especially during the failed 2010 short rains. The merged, TCA-weighted soil moisture composite product takes advantage of the relative strengths of each method, as judged by the consistency of anomaly estimates across independent methods. This approach holds potential as a remote soil moisture-based drought monitoring system that is robust across the diverse climatic and ecological zones of East Africa.

scholarly journals Discussion on Remote Monitoring and Fault Analysis Technology of Mechanical Manufacturing Equipment

2021 ◽  
Vol 2125 (1) ◽  
pp. 012001
Author(s):  
Pengyu Guo
Keyword(s):  
Service Life ◽  
Remote Monitoring ◽  
Production Equipment ◽  
Fault Analysis ◽  
Stable Operation ◽  
Actual Situation ◽  
Monitoring Methods ◽  
Advanced Technologies ◽  
Maintenance Time ◽  
Remote Controller

Abstract Due to the interference of external factors, it is essential to adopt scientific and reasonable remote monitoring methods in mechanical manufacturing. Remote monitoring can ensure the efficiency of abnormal data acquisition, identify faults, improve equipment efficiency, save maintenance time, prolong service life, improve efficiency, and ensure the service life of machine production equipment. Therefore, it is necessary for the subordinate departments to effectively combine the actual situation and introduce some advanced technologies to effectively identify the remote controller and faults and ensure the regular and stable operation of the machine.

A Hardware and Software Complex for Remote Monitoring of a High-Voltage Line Arrester under Operating Voltage

2019 ◽  
Vol 90 (2) ◽  
pp. 130-134
Author(s):  
R. K. Borisov ◽  
S. S. Zhulikov ◽  
P. S. Glazunov ◽  
M. A. Koshelev ◽  
B. K. Maksimov ◽  
...  
Keyword(s):  
High Voltage ◽  
Remote Monitoring ◽  
Operating Voltage ◽  
Software Complex

scholarly journals Эпидемические заболевания в Калмыцкой степи Астраханской губернии в конце ХIХ – начале ХХ в.

2021 ◽  
Vol 14 (1) ◽  
pp. 43-55
Author(s):  
Alexandr N. Komandzhaev ◽  
◽  
Saglar E. Badmaeva
Keyword(s):  
Medical Records ◽  
System Analysis ◽  
National Archive ◽  
Monitoring Methods ◽  
Medical Department ◽  
Analysis Techniques ◽  
Interdisciplinary Approaches ◽  
Police Personnel ◽  
General Scientific ◽  
Epidemic Diseases

Introduction. The article examines the understudied issues of how and to what extent epidemic diseases used to spread across Kalmyk uluses (‘districts’) in the late 19th – early 20th centuries, with special attention be paid to employed control and monitoring methods. The problem was covered in a number of published reports delivered at the First Congress of Astrakhan physicians to have worked in Kalmyk-inhabited lands during the period under study, and the former contain their shared their experiences and valuable findings. Historians hardly ever approached the topic in just a few papers. Goals. So, the work aims at a detailed survey of epidemic diseases in the Kalmyk Steppe of Astrakhan Governorate in the late 19th – early 20th centuries. Materials and Methods. The study employs a set of general scientific and specific historical research methods. The observance of the historicism principle made it possible to avoid modern misinterpretations of the century-old events examined, while system-analysis techniques and interdisciplinary approaches resulted in that certain specific events of Kalmyk life were analyzed as parts of an overall picture. The article mainly explores and newly introduces materials of the Medical Department — a healthcare agency within the Kalmyk People’s Administration — currently stored at the National Archive of Kalmykia. Results. Despite the remoteness of Kalmyk nomadic settlements (Kalm. khoton) from administrative centers and first-aid stations, healthcare practitioners still were efficient enough to promptly respond in case of epidemic outbreaks. Besides treatment proper, the medical, administrative and police personnel were largely responsible for quarantine and disinfection activities, medical examination and supervision of people living around the periphery of the effective disease area. Conclusions. The analysis of materials dealing with the issue reveals Kalmyk districts were widely affected by epidemic diseases, such as typhus, smallpox, measles, diphtheria and others, while cholera and plague were not that often. It should be admitted that the frequent occurrence of those diseases in medical records across the Kalmyk Steppe was determined by their endemicity to have resulted from a number of reasons.

scholarly journals INNOVATIVE APPROACH TO INCREASE OF OPERATIONAL SPEED AND PRODUCTIVITY

2021 ◽  
Vol 1 (48) ◽  
pp. 188-202
Author(s):  
Lomotko D ◽  
◽  
Krasnoshtan O ◽  
Keyword(s):  
Complex System ◽  
Transport System ◽  
Carrying Capacity ◽  
High Speed ◽  
System Analysis ◽  
System Optimization ◽  
Point Of View ◽  
Directed Synthesis ◽  
Complex Structural ◽  
Object Of Study

The article proposes an approach to improving the structure and parameters of complexes for the organization of cargo exchange of piggyback trains using the approach of complex system optimization. The object of study - the process of piggyback transport, methods and approaches to increase its efficiency and speed. The purpose of the work is to determine the methods of improving the efficiency of piggyback transportation and their flexibility in order to adapt its parameters to the needs of customers. Synthesis of methods to increase the flexibility of the piggyback transport system while maintaining consistently high rates of carrying capacity and speed of goods delivery. Research method - system analysis and complex structural-parametric optimization. The organization of piggyback transportation is one of the elements of improving the efficiency and balance of the country's transport system. From the point of view of customer needs, the piggyback system should be flexible, while providing conditions for high transport capacity and speed. To do this, it is necessary to solve a number of problems that would allow the exchange of piggyback trains on the way, without allowing the deterioration of other parameters of the system - mainly performance and speed. The most effective approach to solving these problems is to use the methodology of directed synthesis of complex systems. The peculiarity of this methodology is that it allows you to reach the predefined parameters of a complex system. The synthesized structure of the terminal to ensure highly efficient high-speed freight exchange in the organization of piggyback transport allows piggyback freight exchange at intermediate stations of their route in a minimum time without significantly reducing the route speed and carrying capacity of the system. KEYWORDS: PIGGYBACK TRANSPORTATION, FREIGHT TERMINALS, DIRECTED SYNTHESIS OF SYSTEMS.

scholarly journals Hardware and software complex for remote monitoring and control of a pregnant woman's health state

2021 ◽  
pp. 21-30
Author(s):  
Inna Korneeva ◽  
Kristina Kramar ◽  
Evgeniya Semenova ◽  
Aleksander Sergeev ◽  
Zafar Yuldashev
Keyword(s):  
Pregnant Woman ◽  
Pregnant Women ◽  
Remote Monitoring ◽  
Medical Institution ◽  
Health State ◽  
Biomedical Data ◽  
Experimental Sample ◽  
Monitoring And Control ◽  
Software Complex ◽  
Remote Monitoring Systems

Introduction: The problem of remote monitoring of people's health has become especially urgent nowadays due to the rapid spread of dangerous infectious and viral diseases, such as COVID-19. This period was especially difficult for pregnant women. According to Rosstat statistics, in 2020, maternal mortality in Russia increased by 24.4% compared to 2019 and reached 11.2 per 100,000 newborns. This is the worst level since 2013. In the current conditions, there is a necessity for developing remote monitoring systems which allow you to check the health status of a pregnant woman remotely using tools outside a medical institution. Purpose: To develop the structure and validate the choice of elements for a hardware and software complex which would perform remote monitoring outside a medical institution and assess the condition of pregnant women during their active life. Results: An automated questionnaire for pregnant women has been developed in accordance with the methodological recommendations of the Ministry of Health of the Russian Federation, providing a quantitative assessment of the current state of a pregnant woman in order to study the dynamics of her health. Based on the results of instrumental studies, according to 30 factors of patient's body functioning and the questionnaire data, a set of diagnostically significant indicators was developed. For each of them, a range of values was specified (norm, alarm, pathology). We have developed an experimental sample of the hardware and software complex and tested its functioning, particularly the modes of taking biomedical data by urine tests. The algorithms for processing and analysis of biomedical data have been experimentally studied in order to confirm the validity of the proposed solutions. Practical relevance: The results of the studies allow us to affirmatively answer the question about the possibility of remote monitoring outside a medical institution and assessing the health state of a pregnant woman in order to predict pregnancy complications, as well as to validate the choice of measuring channels for recording a complex of biomedical signals and data, and the choice of algorithms for information processing and analysis.

scholarly journals ANÁLISE MULTITEMPORAL DO USO E COBERTURA DO MANANCIAL ALAGADOS E DE SEU ENTORNO NA REGIÃO DE PONTA GROSSA-PR

2013 ◽  
Vol 35 (1) ◽  
pp. 24
Author(s):  
Paulo Costa de Oliveira Filho ◽  
Charles Andrey da Silva ◽  
Kelly Geronazzo Martins
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Water Surface ◽  
Satellite Images ◽  
Agricultural Practices ◽  
Degradation Process ◽  
Image Method ◽  
Marginal Areas ◽  
High Sedimentation

This study aimed the multitemporal analysis of land use and coverage of the water supply, Alagados and its surroundings (1 km range) in Ponta Grossa city over ten years (from 2001 to 2011). Especially attention was laid on the marginal areas (100 m range) of the permanentpreservation areas (PPA). As the major water suply source of Ponta Grossa city, deterioration of water quality of Alagados is threatened bythe misuse and disorderly occupation of its surroundings .We used satellite images of medium spatial resolution (30 meters) and the objectoriented image method preceded by the image segmentation as the classification techniques. The results showed that there was a significantreduction in the surface of the water surface in 13.43% (88.15 ha) in the period 2001 to 2011, which shows a high sedimentation processoccurred in certain areas of the reservoir. Changes were also detected in the PPA range domain (100 meters) surrounding the reservoir,confirming a degradation process due mainly to the increase buildings occupations and agricultural practices.

A hardware–software complex for remote monitoring of debris flows

2016 ◽  
Vol 59 (5) ◽  
pp. 754-761
Author(s):  
A. H. Adzhiev ◽  
Y. V. Bolgov ◽  
N. V. Kondratyeva ◽  
H. M. Senov
Keyword(s):  
Remote Monitoring ◽  
Debris Flows ◽  
Software Complex
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