The creation of information models of roads on the basis of research with the use of global systems and remote sensing techniques

2021 ◽  
pp. 102-107
Author(s):  
A.A. NERETIN ◽  
◽  
I.I. POZNIAK ◽  

Information modeling allows you to move to the end-to-end transfer of information from surveys to designers, then to builders, and then to operational services. The information 3D model begins to be formed at the stage of research in the form of an information digital model, then a project information model of the road is created on its basis

The relevance of the practical implementation of the concept of modeling processes of reflexive management of herd behavior at enterprises, which is reduced to the construction of a conceptual information model, is substantiated. The subject of this research is the toolkit of information modeling of the processes of reflexive management of herd behavior at enterprises. The goal of the article is information modeling of the processes of reflexive management of herd behavior at enterprises. Objective: the construction of an information model of the mechanisms of reflexive management of herd behavior in enterprises in the context of the interrelated functions performed by the system in question and the relationship between data, where, among others, information communications are reflected. General scientific methods are used: system analysis – to determine the features of the mechanism of reflexive management of herd behavior at enterprises, structural (functional) analysis – to identify the main functions of the modeling system of processes of reflexive management of herd behavior at enterprises, information modeling methodology SADT (IDEF0 notation) – to develop information models of a system for modeling the processes of reflexive management of herd behavior at enterprises. The results are obtained: an information IDEF0 model of a system for modeling the processes of reflexive management of herd behavior based on the SADT methodology is developed, which allows you to get a holistic picture of the corresponding processes at enterprises, the basic system concepts of which form the basis of the future information system. Conclusions: formalization, within the framework of the information model of the basic functions of the mechanism of modeling the processes of reflexive management of herd behavior at the enterprise, allows us to describe the basic information connections in a logical, convenient and consistent form, present implementation mechanisms, a set of mathematical models and approaches of the corresponding system.


Author(s):  
S. Vincke ◽  
M. Bassier ◽  
R. de Lima Hernandez ◽  
I. Dejaeghere ◽  
K. Carbonez ◽  
...  

<p><strong>Abstract.</strong> Remote sensing techniques are invaluable for the documentation and preservation of built heritage. The techniques facilitate fast documentation of highly complex heritage structures with improved accuracies. Furthermore they improve the degree of detail substantially. This is extremely useful for the restoration of collapsed elements or the reassembly of dismantled structures. These entities are often challenging to puzzle back together. Moreover, the differential settlements of the elements over time heavily influence the relative position and orientation of the remaining pieces, further complicating the reconstruction. Digital modelling solutions with a 3D model of the current situation as take-off, are desperately needed by the industry to tackle the present obstacles. In this work, a framework is proposed that facilitates a more accurate reassembly of dismantled heritage elements. It consists of three major phases starting with the accurate recording of the current situation as well as the preserved components. Subsequently, the new design is dititally modelled, reducing the necessary time for the reassembly of the structure, which is the last step in the rebuilding workflow. The presented framework allows for an efficient and comprehensible reconstruction of the structure. A key aspect in the approach is the detection of missing components and the estimation of their dimensions for the production of accurate replicas. The potential is showcased by means of two case studies on the reassembly of flying buttresses and rib vaults of the Saint-James church in Leuven, Belgium, which is currently undergoing major stabilisation works. The presented approach allows heritage experts to gain better oversight over their reassembly project and work more efficiently.</p>


2018 ◽  
Vol 77 (14) ◽  
Author(s):  
Anna-Klara Ahlmer ◽  
Marco Cavalli ◽  
Klas Hansson ◽  
Alexander J. Koutsouris ◽  
Stefano Crema ◽  
...  

AbstractThe expected increase in precipitation and temperature in Scandinavia, and especially short-time heavy precipitation, will increase the frequency of flooding. Urban areas are the most vulnerable, and specifically, the road infrastructure. The accumulation of large volumes of water and sediments on road-stream intersections gets severe consequences for the road drainage structures. This study integrates the spatial and temporal soil moisture properties into the research about flood prediction methods by a case study of two areas in Sweden, Västra Götaland and Värmland, which was affected by severe flooding in August 2014. Soil moisture data are derived from remote-sensing techniques, with a focus on the soil moisture-specific satellites ASCAT and SMOS. Furthermore, several physical catchments descriptors (PCDs) are analyzed and the result shows that larger slopes and drainage density, in general, mean a higher risk of flooding. The precipitation is the same; however, it can be concluded that more precipitation in most cases gives higher soil moisture values. The lack, or the dimensioning, of road drainage structures seems to have a large impact on the flood risk as more sediment and water can be accumulated at the road-stream intersection. The results show that the method implementing soil moisture satellite data is promising for improving the reliability of flooding.


2021 ◽  
Vol 258 ◽  
pp. 09008
Author(s):  
Vadim Kabanov

BIM 3D technologies are traditionally used in the design of construction projects. The prospect of turning BIM 3D into BIM 5D is associated with the need to build information models of the construction process that are able to accurately determine the coordinates of construction and installation work at any time. The purpose of this work is to build an information model in space and time. The paper substantiates the sources of initial quantitative information. A BIM 3D model of a object of construction is a source of information for determining the coordinates (position in space) of the construction process. To calculate the speed of construction, it is proposed to use information about construction resources using national codes. A mathematical apparatus is proposed that can integrate the construction speed value into coordinates using BIM 3D technologies. A flowchart for software product development is proposed. The information model of the building process in space is represented as a vector. The coordinates of the beginning of a vector can always be represented as: X = 0, Y = 0, Z = 0, and the coordinates of the end of this vector are: X, Y, Z. Moving along the vector is described depending on the speed of build.


Author(s):  
Sai Zeng ◽  
Edward J. Kim ◽  
Gregory M. Mocko ◽  
Angran Xiao ◽  
Russell Peak ◽  
...  

As engineering systems are increasingly becoming more complex, the need for information models is growing accordingly. Extensive research is currently underway to develop engineering data management capabilities and to understand the role of information as a systems integrator. In order to develop information models more effectively, a systematic methodology is needed to better manage data and develop information models. In the area of CAD/CAE/CAM applications, an information gap exists between design models and analysis models. To this end, a multi-representational architecture (MRA) is presented to facilitate the transformation of information from design models to various support analysis models. In this paper, our primary focus is on ABBs (Analysis Building Blocks) for solid mechanics and thermal systems that generate FEA (Finite Element Analysis) SMMs (Solution Method Models) to obtain their results. Our focus in this paper is to investigate the effectiveness of the Pahl and Beitz methodology in developing the ABB information model. The Pahl and Beitz design methodology is intended for physical product design applications. Three of the four phases of the Pahl and Beitz methodology are examined and modified to facilitate development of the ABB information model. The augmentations of these phases are presented in this paper. The results of the development of concepts of ABB information model using the Pahl and Beitz methodology support the use of systematic design methodologies for the development of information models. The emphasis of this work is on the methodology used to develop the ABB information model rather than the technical result of the ABB model.


2019 ◽  
Vol 97 ◽  
pp. 01020
Author(s):  
Alexander Ginzburg

Throughout the world, the intensive development of production is accompanied by a steady increase in waste generation. Ecological problems, problems of utilization and recycling of waste come to the fore. The effective functioning of the construction complex is largely determined by the effective organization of the construction and demolition waste (CDW) circulation. Considering the scale of construction, forecasting the volume of waste formation in order to effectively organize the system of economic turnover of CDW is a very relevant scientific and practical problem. Management of CDW flows in Smart cities should be based on information models containing the necessary data on the types, forms and volumes of waste. The paper presents such an information model and a mathematical method of predicting the formation of the CDW. Information modeling of the composition and volume of CDW formation allows on the basis of the developed mathematical apparatus to provide an analysis of construction development trends. It allows to carry out construction production operational and strategic planning and management in terms of the CDW formation, processing and disposal. Analysis of the construction, reconstruction and demolition CDW volume dynamics information model is the basis for further design of treatment plants future scheme.


Author(s):  
Andrey Manukovskiy ◽  
D. Kurdyukov ◽  
V. Korotkov

This article describes the experience of using elements of information modeling technology. Where the process of forming the information model was controlled by representatives of the Customer service in an organized environment of common data on the Internet server of the design organization. Also in this paper, a description is given of the application of elements of information modeling technology during the Customer’s verification, and the deadlines for completing the work are given, which at the end of the experiment gave a significant increase in productivity. The content of the article contains a description of an effective method of interaction of all participants at the design, construction and operation stages and continues to find application in existing projects, while not reducing the productivity time. Research in the article, in the case of joint work using elements of information modeling technology, leads to a certain experience, from which it can be concluded that the introduction of information modeling technology in the road industry is expected not only to improve the quality of the project, but also becomes more effective interaction of all participants at the design, construction and operation stage. The content of the article gives an idea that in fact, the information model of the project is an analog of a paper project. Also, the article discusses the issue of reducing the time of production of design works and works on making changes to the project documentation. This article will be useful for design specialists at the development stage, as well as the working stage.


Author(s):  
T.G. Budko ◽  
◽  
L.І. Lavrinenko ◽  

Тhe issues of designing a multi-volume dome structure for a water park using wooden arches as load-bearing structures are сonsidered. The complexity of the volumes and their joining lines, as well as the requirement to perform non-linear analysis of large-span timber elements at the request of Eurocode 5, make an information model with elements of BIM-technology necessary. It is noted that design using this technology is developing in the direction of taking into account all stages of the structure life cycle. Wood Information modeling is the most prepared for the use of BIM-technologies. This is due to the high factory readiness and complex digital technologies for the manufacture of modern wooden structures elements. During the design, an information model was formulated in the SAPFIR software package with the subsequent possibility of importing the model into the LIRA-SAPR software package. Additional steps were used to build the model: creating a 2D template in AutoCad with reference lines and the location of rigid walls on which the coating rests, and importing drawings into SAPFIR as a dxf-underlay; for all elements of the system located in the local coordinate system, auxiliary lines were built for the correct orientation of the plane in space; loads on curved surfaces were calculated in the PC Expri. For the further development of the nodes, 3D modeling was used with the transfer of the information model to the Tekla Structures PC as a specialized environment for the constructive section of the project. The presented calculation of a complex dome structure using wooden arches summarizes the approaches to the development of unique forms of structures using wood. The use of information models made it possible to reduce the time spent on design, to optimize the drawings, and also to significantly increase the complexity of the architectural and structural design of the structure and the design model, taking into account the nonlinear effects of wood.


Author(s):  
James A. Thom

Software engineers develop an information model in the systems analysis and design process to represent the concepts, specification or implementation design of a software system (Fowler and Scott, 1997). This information model is designed using a modeling language such as the Unified Modeling Language (UML) defined by Rumbaugh, Jacobson, and Booch (1999). The software is implemented by translating the information model into code. Similarly, data engineers develop an information model in the database design process to represented the types of data to be stored in a database. This conceptual information model is typically defined using one of the semantic data modeling languages (Hull and King, 1987) such as Entity-Relationship diagrams (Chen, 1976), or NIAM conceptual schemas (Leung and Nijssen, 1988). The database is implemented by translating the information model into a database schema (defined using an implementation data model such as the relational data model or an object-oriented data model). Likewise, document engineers will develop an information model when designing the structure of a collection of documents. This information model will be implemented by translating it into a document schema. Traditional database information modeling has dealt with structured data such as that found in relational databases. However, much of the information produced using and stored in computers involves documents that do not contain data with a fixed structure - rather it is referred to as semi-structured data. The need for better modeling of documents is no more apparent than in the rapid and chaotic development over the last few years of the World Wide Web. In response to this need, various information models have been proposed to model the semi-structured data found in documents.


2018 ◽  
Vol 224 ◽  
pp. 02060 ◽  
Author(s):  
Vladimir Mokrozub ◽  
Evgeniy Malygin ◽  
Vladimir Nemtinov

The information models for determining sizes of apparatuses in chemical-technological systems and the development of separate technological apparatus are provided. The information model for solving the problem of calculating the determining sizes of apparatuses is based on the representation the structure of the chemical-technological system in the form of oriented polychromatic hypergraph, the edges of which are the products, and the vertices are the stages of the technological process. The information model for solving the problem of developing a separate technological apparatus allows determining its structure, the parameters of its elements and their location in the 3D model of the assembly. The structure of the apparatus is presented as a hierarchical system of hypergraphs, which was built on the base of the «and – or» tree of possible elements of the apparatus and the rules, that allow to select the necessary elements of «and – or» tree, depending on the functions of the apparatus and the conditions of its operation. The location of the elements of apparatus in space is determined by logical conditions describing their position relative to each other in the 3D model of the assembly.


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