scholarly journals Optimization of the Oil Drilling Monitoring System Based on the Multisensor Image Fusion Algorithm

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Dong Wang ◽  
Yongming Li ◽  
Haojie Yu ◽  
Ruizhi Tang ◽  
Ningping Yan
Keyword(s):  
Monitoring System ◽  
Wavelet Transforms ◽  
Filter Bank ◽  
Working Environment ◽  
Contourlet Transform ◽  
Drilling Process ◽  
Fusion Algorithm ◽  
Oil Drilling ◽  
Advantages And Disadvantages ◽  
Bank Structure

The working environment of the oil drilling platform is harsh, with many uncertain factors and high operating risks. During the drilling process, due to sudden formation factors or improper process operations, it is extremely easy to cause well wall instability, sticking, lost circulation, well kick, and blowout. In addition, other complicated situations and accidents have brought major challenges to drilling safety. In order to improve the technical level of oil and gas exploration and development and achieve the goal of reducing costs and increasing efficiency, it is necessary to strengthen the optimization of traditional oil drilling monitoring systems. This article summarizes the advantages and disadvantages of the existing image multiscale analysis algorithms, from wavelet transform, stationary wavelet transforms to contourlet transform, and nondownsampled contours based on the characteristics of the images collected by different sensors in the oil drilling monitoring system and the needs of practical applications. Wave transforms detailed comparison of the fusion performance of these image analysis algorithms under the same fusion rules. Aiming at the shortcoming of the large amount of calculation of nonsubsampled contourlet transform, a fast implementation algorithm (IFNSCT) is proposed. The multichannel filter bank structure is used to replace the original tree filter bank structure, which reduces the time-consuming to the original without affecting the analysis performance of the algorithm. One-half of the oil drilling monitoring efficiency has been improved.

scholarly journals Detection of Road-Surface Anomalies Using a Smartphone Camera and Accelerometer

Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 561
Author(s):  
Taehee Lee ◽  
Chanjun Chun ◽  
Seung-Ki Ryu
Keyword(s):  
Monitoring System ◽  
Poor Performance ◽  
Road Surface ◽  
Monitoring Systems ◽  
Advantages And Disadvantages ◽  
Acceleration Data ◽  
Road Surfaces ◽  
Road Surface Monitoring ◽  
Surface Monitoring ◽  
Acquisition Method

Road surfaces should be maintained in excellent condition to ensure the safety of motorists. To this end, there exist various road-surface monitoring systems, each of which is known to have specific advantages and disadvantages. In this study, a smartphone-based dual-acquisition method system capable of acquiring images of road-surface anomalies and measuring the acceleration of the vehicle upon their detection was developed to explore the complementarity benefits of the two different methods. A road test was conducted in which 1896 road-surface images and corresponding three-axis acceleration data were acquired. All images were classified based on the presence and type of anomalies, and histograms of the maximum variations in the acceleration in the gravitational direction were comparatively analyzed. When the types of anomalies were not considered, it was difficult to identify their effects using the histograms. The differences among histograms became evident upon consideration of whether the vehicle wheels passed over the anomalies, and when excluding longitudinal anomalies that caused minor changes in acceleration. Although the image-based monitoring system used in this research provided poor performance on its own, the severity of road-surface anomalies was accurately inferred using the specific range of the maximum variation of acceleration in the gravitational direction.

Modeling of Multi-Agent System for Drilling Simulation

2011 ◽  
Vol 383-390 ◽  
pp. 1555-1561
Author(s):  
Wu Li Wang ◽  
Yan Jiang Wang
Keyword(s):  
Simulation System ◽  
Drilling Process ◽  
Multi Agent System ◽  
Agent System ◽  
Oil Drilling ◽  
Well Control ◽  
Existing Problems ◽  
System A ◽  
Multi Agent ◽  
Drilling Simulation

In view of the characteristics of the oil drilling process and the existing problems of traditional simulation system, a new distributed drilling simulation model was established based on Multi-Agent system (MAS) technology. By means of autonomous, cooperative and reactive characteristic of Agent, the drilling laws and phenomenon can be reflected promptly and accurately under any circumstances. The MAS modeling for oil drilling simulation, the structure and knowledge representation of each Agent and the communication among Agents are described in detail. Finally, an Agent-based normal drilling well control simulation training example was given. The simulation results show that the simulator based on Multi-Agent system has better performances than traditional drilling simulators, and enhances the integrated training function of the drilling simulation system.

scholarly journals Suddenly Telework: Job Crafting as a Way to Promote Employee Well-Being?

2022 ◽  
Vol 12 ◽  
Author(s):  
Christiane R. Stempel ◽  
Katja Siestrup
Keyword(s):  
Working Conditions ◽  
Online Survey ◽  
Well Being ◽  
Job Characteristics ◽  
Social Resources ◽  
Working Environment ◽  
Job Crafting ◽  
Advantages And Disadvantages ◽  
Abrupt Shift ◽  
Quantitative Results

COVID-19 confronted many people with an abrupt shift from their usual working environment to telework. This study explores which job characteristics are perceived as most crucial in this exceptional situation and how they differ from people’s previous working conditions. Additionally, we focus on job crafting as a response to this situation and how it is related to employees’ well-being. We conducted an online survey with N = 599 participants, of which 321 reported that they were telework newcomers. First, we asked participants to indicate the three most important advantages and disadvantages they see in telework. The subsequent questionnaire contained a comprehensive measure of working conditions before and during the pandemic, job crafting behaviors, and indicators of well-being. Based on the qualitative answers, we identified three major advantages and disadvantages. Quantitative results indicate perceived changes in all job characteristics for telework newcomers. Concerning working conditions and well-being, job crafting activities that aim to increase structural and social resources are important mediators. The findings underline the need to design appropriate telework conditions and encourage job crafting activities to foster occupational well-being.

scholarly journals Performance Evaluation of Mel and Bark Scale based Features for Text-Independent Speaker Identification

2019 ◽  
Vol 8 (11) ◽  
pp. 3734-3738
Keyword(s):  
Speaker Recognition ◽  
Filter Bank ◽  
Work Performance ◽  
Speaker Identification ◽  
Recognition Rate ◽  
Identification System ◽  
Bank Structure ◽  
Speech Features ◽  
Recognition Systems ◽  
Human Ear

The performance of Mel scale and Bark scale is evaluated for text-independent speaker identification system. Mel scale and Bark scale are designed according to human auditory system. The filter bank structure is defined using Mel and Bark scales for speech and speaker recognition systems to extract speaker specific speech features. In this work, performance of Mel scale and Bark scale is evaluated for text-independent speaker identification system. It is found that Bark scale centre frequencies are more effective than Mel scale centre frequencies in case of Indian dialect speaker databases. Mel scale is defined as per interpretation of pitch by human ear and Bark scale is based on critical band selectivity at which loudness becomes significantly different. The recognition rate achieved using Bark scale filter bank is 96% for AISSMSIOIT database and 95% for Marathi database.

scholarly journals CO-WORKING AS THE COMPONENT OF THE E- ENVIRONMENT FORMING ENTREPRENEURSHIP COMPETENCE. MANAGEMENT, ON-LINE TOOLS FOR BUILDING A FREE WORKING SPACE

World Science ◽  
2019 ◽  
Vol 4 (11(51)) ◽  
pp. 4-11
Author(s):  
Alona Nieliepova
Keyword(s):  
Free Space ◽  
Innovative Activity ◽  
Working Environment ◽  
Educational Institutions ◽  
Higher Educational Institutions ◽  
Adequate Model ◽  
Advantages And Disadvantages ◽  
Working Space ◽  
Higher Educational ◽  
Key Aspects

The subject of the article is the study of modern trends coworking of the university. The key aspects of the co-working center on innovative activity of higher educational institutions of agrarian education are considered in the light of the main advantages and disadvantages of this occurrence. The purpose of the work is to study trends and approaches in the use of coworking in agricultural universities. From the standpoint of the scientific- pedagogical paradigm and systematic approach to the formation of entrepreneurial competence in a free space, the tasks, structure, forms and models of a co-working center oriented to the project-network and scientific- service support of innovative development of the agrarian sphere based on innovative ideas are revealed.A retrospective analysis made it possible to consider the prerequisites for the emergence of co-workings. Based on empirical research methods - questionnaires categories of people working in co-working centers of Ukraine, researched their motives of being in free space, advantages and disadvantages of working in co-working. The analysis of the relationships between the participants in the co-working process has allowed to justify the stages of formation the necessary infrastructure of the internal co-working environment. Conclusion: The peer review method has created an adequate model for the future development of the co-working center for higher education applicants and confirmed that co-working is helping to enhance the professional position of the agricultural business. On the basis of comparative analysis of infrastructure and architecture of software and hardware, mechanisms of organization of co-working present on the market of Ukraine, the key aspects of the model and e-environment of co-working in relation to innovative activity of higher educational institutions of agrarian education are highlighted.

Sign in / Sign up

Export Citation Format

Share Document