scholarly journals A new analog-to-digital method for forming and using of cartographic visualization of the geo-space with the use of multimedia means

2020 ◽  
Vol 26 (1) ◽  
pp. 361-374
Author(s):  
Dmitry Lisitsky ◽  
Elena Komissarova
Keyword(s):  
Spatial Information ◽  
Digital Data ◽  
Geospatial Information ◽  
Summary Table ◽  
Analog To Digital ◽  
Interactive Mode ◽  
Advantages And Disadvantages ◽  
Multimedia Cartography ◽  
Interactive Map ◽  
Stored Information

The article discusses the development directions of cartographic methods to provide users with geoinformation using modern digital devices. Explains the need to review the substantive essence, the system of symbols, use, information content and the peculiarity of the perception of cartographic information by users. A new method of cartographic support of the needs of the economy and society, which is based on a combination of the capabilities of analog traditional maps, mobile and multimedia cartography, is substantiated and proposed. Various ways of increasing the volume of cartographic information using traditional maps with special markers on them, multimedia files and mobile devices, introducing an interactive mode of working with a map, and also taking into account the peculiarities of the perception of digital mobile maps are considered. The authors proposed option for combining sources of geoinformation to increase the information capacity of a map by combining a traditional map and a set of markers that either store the necessary information in encoded form or represent a link to external sources. We analyzed the features of QR codes and highlighted the basic possibilities of using them when creating a new type of interactive map, and also performed statistical studies of this option regarding a quantitative increase in the amount of stored information. Five methods of creating sources of geospatial information and using it interactively, including in the field and in the absence of communication for the transmission of digital data, are proposed and a summary table of the advantages and disadvantages of the methods of analog-to-digital representation of spatial information is compiled. The results of experimental work are presented, including samples of new types of maps compiled.

State topographic monitoring: geospatial-and-informational potential and ways of implementation

2020 ◽  
Vol 957 (3) ◽  
pp. 21-31
Author(s):  
E.A. Brovko ◽  
T.V. Vereschaka
Keyword(s):  
Spatial Data ◽  
Spatial Information ◽  
Topographic Map ◽  
Geospatial Information ◽  
Ongoing Research ◽  
Distributed Information ◽  
Advantages And Disadvantages ◽  
Documentary Sources ◽  
Automated Technology ◽  
The One

The authors highlight the results of ongoing research published in [1]. The ways of possible implementation of the state topographic monitoring (STM) as a geographically distributed information system and the basic component, of the Federal spatial data Fund on the one hand and a single electronic cartographic basis that needs constant updating on the other are proposed. The authors describe the documentary sources of state information resources, their advantages and disadvantages. Integration of Sciences and inter-scientific relations in the monitoring system are considered. The directions of priority developments and the results of research are shown. The concept of the electronic map of zoning the territory of Russia in the order of STM with an illustration of its content and functionality is presented. The automated technology of monitoring at its various stages and levels, defined as overview and detailed, is justified. The purpose of each level, their coordination and relationship are highlighted. A new spatial information resource in the form of a digital topographic map-on-duty is proposed. The technological scheme of detailed topographic monitoring is given. The matter of the need to improve the regulatory and technical regulation of STM is raised. In conclusion, the advantages of monitoring to meet the country’s needs for up-to-date geospatial information are emphasized.

Study of Wireless Torque Measurement System Based on CC2500

2011 ◽  
Vol 383-390 ◽  
pp. 5300-5303
Author(s):  
Wei Liu ◽  
Xiao Jie Song ◽  
Wen Gang Chen
Keyword(s):  
Signal To Noise Ratio ◽  
Digital Data ◽  
Measuring System ◽  
Instrumentation Amplifier ◽  
Torque Sensor ◽  
Torque Measurement ◽  
Analog To Digital ◽  
Wireless Transceiver ◽  
Precision Measuring ◽  
Transmission Shaft

It’s very difficult to get high precision measuring result using contact torquemeter because of very low signal-to-noise ratio. To overcome this defect, a wireless torque measuring system is designed based on CC2500. This system uses strain gauge torque sensor to measure the surface principal stress of the transmission shaft, and get the maximum shearing stress, and then the torque that the transmission shaft bears. The weak output signal of torque sensor is magnified by the instrumentation amplifier AD623, and sent to the analog-to-digital convertor. These digital data are transmited to the portable receiving terminal by the wireless transceiver chip CC2500. The dynamic wireless torque measurement is realized by this system.

Lexical-Grammatical Status and Lexicographic Presentation of Two-Component Stable Prepositional Combinations

2021 ◽  
pp. 32-51
Author(s):  
Elena V. Generalova ◽  
Keyword(s):  
Summary Table ◽  
Complex Issue ◽  
Dictionary Entry ◽  
Figurative Meaning ◽  
Advantages And Disadvantages ◽  
Unresolved Question ◽  
Two Component ◽  
Different Types ◽  
Syntactic Properties ◽  
Theoretical Issues

The aim of the article is to review the ways of dictionary presentation of stable prepositional combinations and the factors essential for their lexical-grammatical status and the type of optimal lexicographic description. The object of the study is twocomponent prepositional combinations with stable meanings and the “preposition+noun” structure. The material of the article is data of different dictionaries of Russian presenting stable prepositional combinations. In the course of the study, the following questions were answered: why the definition and interpretation of the lexical-grammatical nature of stable prepositional combinations are so difficult and ambiguous; what lexicographic interpretation these units have in dictionaries of different types; what the advantages and disadvantages of different ways of dictionary interpretation of such language material are. The following methods were used: introspective (observation, generalization, classification), systematic lexicographic description according to dictionary parameters, dictionary definition analysis. The summary table of the lexicographic presentation of stable combinations allows seeing both the unresolved question of dictionary interpretation of such units and the patterns of their interpretation depending on the type of a dictionary. As a result of the analysis the following conclusions were drawn. 1) In modern Russian there is a rather large (about 2,000 units) class of language units (prepositional combinations), the lexical-grammatical status of which is not defined, and there is no term for their definition; this class is historically formed and continues to replenish. 2) The type of dictionary presentation of stable prepositional combinations is determined by the dictionary concept, grammatical and syntactic properties, presence of figurative meaning and possibility of component variation of such combinations. 3) The unresolved theoretical issues have as a result the lexicographic discrepancy in the presentation of these language units. Extreme lexicographic solutions are a separate dictionary entry for each combination and the presentation of such units only as stable combinations in the entry of a noun (presented in academic explanatory dictionaries). 4) Taking into account only the factor of presence/absence of a gap seems to formalize the dictionary presentation of adverbs with both conjoined and split spelling, really existing in Russian, and the position of recognition of these units with independent words and their isolate presentation is not impeccable for dictionary users. 5) In the author’s opinion, the presentation of stable prepositional combinations exclusively as independent vocabules is inferior to the traditional lexicographic approach because the isolated presentation of this material breaks the semantic connections of these complex lexical units; the most complex issue is the differentiation of adverbs with split spelling and stable combinations.

scholarly journals DESIGN AND ANALYSIS OF DIFFERENT TECHNIQUES FOR ANALOG-TO-DIGITAL CONVERSION OF VIBRATION SIGNALS FOR WIRELESS MEASUREMENT SYSTEMS

2018 ◽  
Vol 17 (1) ◽  
pp. 39
Author(s):  
Milan Dinčić ◽  
Dragan Denić ◽  
Zoran Perić
Keyword(s):  
Digital Data ◽  
Bit Rate ◽  
Rate Reduction ◽  
Digital Conversion ◽  
Vibration Signals ◽  
Analog To Digital ◽  
Measurement Systems ◽  
Analog To Digital Conversion ◽  
Uniform Quantization ◽  
Wireless Measurement

The aim of this paper is to design, analyze and compare four different systems for ADC (analog-to-digital conversion) of vibration signals. Measurement of vibration signals is of particular importance in many areas, such as predictive maintenance or structural health monitoring. Wireless systems for vibration measurements becomes very topical, due to much easier and cheaper installation compared to wired systems. Due to the lack of transmission bandwidth and energy in wireless measurement systems, the amount of digital data being sent has to be reduced; hence, we have to apply ADC systems that can achieve the required digital signal quality, reducing the bit-rate. Four ADC systems are analyzed, for possible application in wireless measurement systems: PCM (pulse code modulation) based on uniform quantization; DPCM (differential PCM) to exploit high correlation of vibration signals; two adaptive ADC systems to cope with significant variations of characteristics of vibration signals in time - APCM (adaptive PCM) with adaptation on variance and ADPCM (adaptive DPCM), with double adaptation (both on variance and correlation). These ADC models are designed and optimized specifically for vibration signals, based on the analysis of 20 vibration signals from a referent database. An experiment is done, applying designed ADC systems for digitalization of vibration signals. APCM, DPCM and ADPCM systems allow significant bit-rate reduction compared to the PCM system, but with the increasing of complexity, hence the compromise between the bit-rate reduction and complexity is needed.

scholarly journals CLASSIFICATION OF RAILWAY ASSETS IN MOBILE MAPPING POINT CLOUDS

2020 ◽  
Vol XLIII-B1-2020 ◽  
pp. 219-225
Author(s):  
M. Corongiu ◽  
A. Masiero ◽  
G. Tucci
Keyword(s):  
Spatial Information ◽  
Point Clouds ◽  
Railway Track ◽  
Neural Net ◽  
Mobile Mapping ◽  
Geospatial Information ◽  
Railway System ◽  
Point Neighborhood ◽  
Mobile Mapping Systems ◽  
Mapping Systems

Abstract. Nowadays, mobile mapping systems are widely used to quickly collect reliable geospatial information of relatively large areas: thanks to such characteristics, the number of applications and fields exploiting their usage is continuously increasing. Among such possible applications, mobile mapping systems have been recently considered also by railway system managers to quickly produce and update a database of the geospatial features of such system, also called assets. Despite several vehicles, devices and acquisition methods can be considered for the data collection of the railway system, the predominant one is probably that based on the use of a mobile mapping system mounted on a train, which moves all along the railway tracks, enabling the 3D reproduction of the entire railway track area.Given the large amount of data collected by such mobile mapping, automatic procedures have to be used to speed up the process of extracting the spatial information of interest, i.e. assets positions and characteristics.This paper considers the problem of extracting such information for what concerns cantilever and portal masts, by exploiting a mixed approach. First, a set of candidate areas are extracted and pre-processed by considering certain of their geometric characteristics, mainly extracted by using eigenvalues of the covariance matrix of a point neighborhood. Then, a 3D modified Fisher vector-deep learning neural net is used to classify the candidates. Tests on such approach are conducted in two areas of the Italian railway system.

scholarly journals Approaches and Solutions for Creating Atlases in Geographic Information Systems

2020 ◽  
Vol 19 (33) ◽  
pp. 4-17
Author(s):  
Sergei Krylov ◽  
Gleb Zagrebin ◽  
Dmitriy Mosolov ◽  
Irina Shkurenkova
Keyword(s):  
Information Systems ◽  
Geographic Information Systems ◽  
Geographic Information ◽  
Regional Mapping ◽  
Mathematical Basis ◽  
Summary Table ◽  
Advantages And Disadvantages ◽  
Python Programming Language ◽  
Developer Tools ◽  
Python Programming

The features, advantages and disadvantages of using QGIS, ArcGIS and MapInfo Pro when creating atlases of various types (geographic, complex and thematic) are considered in this paper. Schemes for their potential organization are presented and technological schemes for their automated creation in these geographic information systems are proposed. As a result, approaches and solutions for improving geographic information software can be formulated. Algorithms and modules were developed, primarily aimed at formalizing the structure of atlases and automating the design process of their mathematical basis. The development of functionality was implemented using built-in developer tools implemented in MapInfo as the MapBasic language, and in ArcGIS and QGIS in the Python programming language. A summary table was compiled, which presents the basic functionalities required to create atlases in GIS and their implementation in the appropriate software. These proposals will ensure the fulfillment of all requirements necessary for atlas design, primarily at the regional mapping level.

Organizing Data-driven Companies

2020 ◽  
pp. 97-131
Author(s):  
Henri Schildt
Keyword(s):  
Digital Technologies ◽  
Digital Data ◽  
Data Driven ◽  
Paradoxical Effect ◽  
Digital Ecosystems ◽  
Advantages And Disadvantages ◽  
Sources Of Authority ◽  
Basic Approaches

This chapter examines why and how digitalization is pushing organizations to adopt team-based structures, greater transparency, and agile work cultures. I draw attention to a shift in focus from efficient routines towards greater adaptability, and elaborate the paradoxical effect that digital data has in both eliminating and generating coordination needs within corporations. The chapter introduces six basic approaches to organizing and discusses their relative advantages and disadvantages in leveraging digital technologies. I elaborate how focus on agility has redefined the basis of control in organizations, called into question the prevalent ‘culture of secrecy’ in corporations, and eroded traditional sources of authority. The chapter concludes by discussing how modularity has reshaped the network of relationships around corporations and increased the strategic importance of digital ecosystems and platforms.

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