Auto-selection of optimal visual representation for a flying robot based on altitude control

Semiotic Assessment of Visualization Tools Alena Zakharova 1, Aleksey Shklyar 2 and Evgeniya Vekhter 2 1 Institute of Control Sciences of Russian Academy of Sciences, 65, Profsoyuznaya st., Moscow, 117997, Russian Federation 2 Tomsk Polytechnic University, 30, Lenin Ave., Tomsk, 634050, Russian Federation Abstract A visual analytics means is a set of tools used to obtain a visual representation of the data explored by the user, its interpretation and complete analysis. It is quite possible that such a set will be a developed specialized environment for continuous user interaction with a data stream, which has the capacity to control and replace the way of visual data representation. A wide range of existing visualization tools, as well as unlimited borrowing of technological solutions originally intended for a narrow application area, and the transfer of the capabilities they create to other directions make it urgent to form a sound approach to the comparison and selection of means of data visual representation of a given complexity [1]. The purpose of this selection is to save the end user’s resources, based on the absence or minimization of resource losses arising at the stage of selection and testing of visual analytics tools. The paper shows the possibility of using a semiotic visualization model for purposeful design or selection of visualization tools.

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Comunicación visual de una emergencia sanitaria mundial: el caso de la Covid-19

Anuario ThinkEPI ◽

10.3145/thinkepi.2021.e15d01 ◽

2021 ◽

Author(s):

Mario Pérez-Montoro

Keyword(s):

General Public ◽

Communication Strategies ◽

Visual Representation ◽

The Media ◽

Difficult Challenge ◽

Selection Of

In the pandemic generated by the coronavirus, governments and the media were suddenly faced with the difficult challenge of communicating about this issue with the population and transferring technical concepts and large volumes of data to the general public. It was necessary to find a way to make this unfamiliar content accessible to everyone, using known and assimilable formulas. In this context, the strategy chosen to make this communication more efficient was clear: transmit all this vital information through the visual representation of data. In this work we analyze the problems associated with the data involved in these visualizations and review a selection of good and bad practices used in these communication strategies. Resumen Frente a la pandemia generada por el coronavirus, los gobiernos y los medios se encontraron de repente con el difícil reto de comunicar sobre este tema con la población y trasladar al gran público conceptos técnicos y grandes volúmenes de datos. Había que buscar una manera de hacer accesibles esos contenidos no familiares para todos, a través de fórmulas conocidas y asimilables. En ese contexto, la estrategia elegida para hacer más eficiente esa comunicación estaba clara: transmitir toda esa información vital a través de la representación visual de datos. En este trabajo analizamos los problemas asociados con los datos involucrados en esas visualizaciones y revisamos una selección de buenas y malas prácticas utilizadas en esas estrategias comunicativas.

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Altitude Measurement-Based Optimization of the Landing Process of UAVs

Sensors ◽

10.3390/s21041151 ◽

2021 ◽

Vol 21 (4) ◽

pp. 1151

Author(s):

Dariusz Horla ◽

Wojciech Giernacki ◽

Jacek Cieślak ◽

Pascual Campoy

Keyword(s):

Motion Capture ◽

Minimum Energy ◽

Minimum Time ◽

Motion Capture System ◽

Control Loop ◽

Performance Indices ◽

Novel Approach ◽

Aerial Vehicle ◽

Altitude Control ◽

Flying Robot

The paper addresses the loop shaping problem in the altitude control of an unmanned aerial vehicle to land the flying robot with a specific landing scenario adopted. The proposed solution is optimal, in the sense of the selected performance indices, namely minimum-time, minimum-energy, and velocity-penalized related functions, achieving their minimal values, with numerous experiments conducted throughout the development and preparation to the Mohamed Bin Zayed International Robotics Challenge (MBZIRC 2020). A novel approach to generation of a reference altitude trajectory is presented, which is then tracked in a standard, though optimized, control loop. Three landing scenarios are considered, namely: minimum-time, minimum-energy, and velocity-penalized landing scenarios. The experimental results obtained with the use of the Simulink Support Package for Parrot Minidrones, and the OptiTrack motion capture system proved the effectiveness of the proposed approach.

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Perbandingan Cara Mencacah Banyak Lintasan Terpendek antara Dua Titik pada Grid

Idealmathedu: Indonesian Digital Journal of Mathematics and Education ◽

10.53717/idealmathedu.v7i1.173 ◽

2020 ◽

Vol 7 (1) ◽

pp. 49-60

Author(s):

Wiworo Wiworo

Keyword(s):

Visual Representation ◽

Shortest Paths ◽

Combinatorial Problem ◽

Pascal Triangle ◽

Number Pattern ◽

Counting Methods ◽

Selection Of

The problem of counting the number of shortest paths between two points on a grid is a combinatorial problem that is often found in mathematical competitions or enrichment problems for various levels of school. There are several ways to count, namely by drawing a figure (visual representation), by the number pattern in the Pascal Triangle, and the combination formula. This paper discusses a comparison of each ways related to the problem at hand. On a simple grid all of the three methods can be used. On complex grids the combination formula is the only method can be applied, in some cases the technique of number pattern in Pascal Triangle is still applicable. On the grid with varied obstacles, foresight and flexibility is needed in the selection of the counting methods.

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Mathematical Modeling of the Coaxial Quadrotor Dynamics for Its Attitude and Altitude Control

Energies ◽

10.3390/en14051232 ◽

2021 ◽

Vol 14 (5) ◽

pp. 1232

Author(s):

Wojciech Giernacki ◽

Jarosław Gośliński ◽

Jagoda Goślińska ◽

Tadeo Espinoza-Fraire ◽

Jinjun Rao

Keyword(s):

Mathematical Modeling ◽

Mathematical Model ◽

Dimensional Space ◽

Three Dimensional ◽

Viscous Friction ◽

Control Techniques ◽

Aerial Vehicle ◽

Altitude Control ◽

Selection Of ◽

Three Dimensional Space

In this paper, an easily implementable coaxial quadrotor model and its validation on data from a real unmanned aerial vehicle (UAV), are presented. The proposed mathematical model consists of two parts: description of orientation and position of the UAV in the three-dimensional space. It takes into consideration the gyroscopic effect, influence of the Coriolis force, viscous friction and a several drag-like effects (blade flapping, rotor drag, translational drag and profile drag). In contrast to multirotor models available in the literature, this one is characterized by complementarity in relation to the available control techniques. Depending on selection of these techniques, the model can be narrowed (simplified) to meet the needs without the loss of behaviour adequacy to a real UAV.

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Representasi Islami dalam animasi “Nussa” sebagai media pembelajaran untuk anak

REKAM Jurnal Fotografi Televisi dan Animasi ◽

10.24821/rekam.v16i2.3612 ◽

2020 ◽

Vol 16 (2) ◽

Author(s):

Fathin Hanifah Langga ◽

Hafiz Aziz Ahmad ◽

Alvanov Zpalanzani Mansoor

Keyword(s):

Discourse Analysis ◽

Research Method ◽

Visual Analysis ◽

Visual Representation ◽

Islamic Education ◽

Parents And Children ◽

Effective Media ◽

Gillian Rose ◽

Selection Of

Pendidikan Islami merupakan tuntunan dalam kehidupan umat muslim. Media film/video/animasi di YouTube dianggap sebuah media yang efektif dalam menyampaikan pendidikan Islam. Animasi Nussa merupakan serial animasi dengan konten edutainment Islami untuk orang tua dan anak-anak. Penelitian ini bertujuan untuk membahas representasi visual keislaman dalam animasi Nussa. Penelitian ini menggunakan metode deskriptif dengan teknik analisis visual. Representasi Islami pada animasi Nussa ini tidak hanya dapat dilihat dari segi cerita saja atau visual saja, namun juga dapat dilihat dari berbagai kombinasi seluruh konsep elemen atau atribut yang terkait didalamnya. Hal ini dapat dilihat dari pemilihan warna, adegan, penampilan tokoh (kostum), dialog dan pemilihan nama tokoh. Berbagai penggunaan elemen dan atribut tersebut didominasi oleh lambang keislaman. Islamic representation in “Nussa” animation as learning media for childrenAbstractIslamic education is a guide in the lives of Muslims. Films/videos/animations media on YouTube is considered an effective media in conveying Islamic education. Nussa animation is an animated series with Islamic edutainment content for parents and children. This study aims to discuss Islamic visual representation in Nussa animation. The research method used is discourse analysis based on Gillian Rose‟s visual analysis. The Islamic representation in Nussa animation can not only be seen in term of the story or visual but also can be seen from various combinations of all concepts of elements or related attributes in it. This can be seen from the selection of colours, scenes, the appearance of characters (costumes), dialogue and character name selection. Various uses of these elements and attributes are dominated by Islamic symbols.

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An Urban Carnival on the City Walls: The Visual Representation of Financial Power in European Street Art

Journal of Visual Culture ◽

10.1177/1470412915592883 ◽

2015 ◽

Vol 14 (2) ◽

pp. 246-252

Author(s):

Andrea Baldini

Keyword(s):

Visual Representation ◽

Street Art ◽

Economic Rationality ◽

City Walls ◽

Financial Power ◽

The City ◽

Opening Up ◽

Selection Of

By discussing a selection of socially engaged street artworks from the Frankfurt-based project ‘Under Art Construction’, this essay sheds light on street art’s possibilities as a form of resistance against the power of globalizing finance. The author argues that through the use of carnivalesque strategies of irony and appropriation, street art can challenge the pretense of rationality of recent policies of austerity in the eurozone. Such a challenge exposes the contingency of spending cut programs. He finally suggests that, in debunking the myth of economic rationality, street art can change people’s experience of finance, while opening up a space for imagining alternative economic scenarios.

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Representasi Visual dan Verbal Iklan Mobil “FORD” pada Koran Arab Digital (Semiotik Charles Morris)

JURNAL Al-AZHAR INDONESIA SERI HUMANIORA ◽

10.36722/sh.v5i4.415 ◽

2020 ◽

Vol 5 (4) ◽

pp. 174

Author(s):

Tsaniananda Fidyatul Chafidzoh

Keyword(s):

Visual Representation ◽

Word Type ◽

Model Analysis ◽

Semantic Level ◽

Visual Elements ◽

Semiotic Model ◽

Qualitative Descriptive ◽

Visual Text ◽

The Relationship ◽

Selection Of

Abstrak – Iklan mobil “FORD” berisi informasi verbal dan visual sebagai bahan promosi selama Ramadhan 1440H. Tujuan dari penelitian ini adalah untuk mengetahui bentuk semantik, sintaksis, dan pragmatis dalam iklan mobil “FORD” pada koran Arab digital. Penelitian ini bersifat deskriptif kualitatif dengan menggunakan analisis model semiotik Charles Morris. Hasil penelitian menunjukkan bahwa pada level semantik, teks verbal mengandung makna denotasi yaitu maksud penawaran dan penjelasan keunggulan promo dan makna konotasi yaitu secara bertahap menggiring pembaca untuk mengambil tawaran yang disajikan. Pada representasi visual, ada upaya menautkan format iklan dengan referen. Pada level sintaksis, pembuat iklan memperhatikan pemilihan jenis kata dan bentuk kalimat agar runtut dan teratur. Secara visual, ada kaitan antara unsur visual dan teks, seperti pemilihan gambar lampion dan bayangan masjid. Pada level paragmatis, hubungan antara tanda dengan makna tanda tergambar dari kepaduan antara unsur verbal dan visual teks iklan. Iklan ini menyampaikan pesan "Belilah jenis terbaru dari mobil “FORD” pada bulan Ramadhan ini karena anda akan untung. Jangan sampai promo ini terlewat.”Abstract – The purpose of this study is to find out the semantic, syntax, and pragmatic forms of the "FORD" car advertisements on digital Arabic newspapers during the month of Ramadhan 1440H. This research is qualitative descriptive by using the Semiotic model analysis of Charles Morris. The results showed that at the semantic level, the verbal text contains the meaning of denotation which is the meaning of bidding and the explanation of the advantages of the offer and the meaning of connotation is to gradually lead the reader to take the offer presented. In visual representation, there is an attempt to link ad formats with referrals. At the syntax level, the ad creator pays attention to the selection of the word type and the sentence shape to be sequential and orderly. Visually, there is a link between the visual elements and the text. At the pragmatic level, the relationship between the mark and the meaning of the marks is engraved from the mix between the verbal elements and the visual text of the ad. These ads convey the message "buy the latest type of FORD cars" in this month of Ramadan because you will be profitable. Don't miss this promo."Keywords - Iklan, Mobil “FORD”, Semiotik, Charles Morris, Koran digital.

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