V článku „200. výročí stabilního katastru vybízí k zamyšlení o historii i současnosti pozemkových evidencí“, publikovaném v Geodetickém a kartografickém obzoru, 2018, č. 1, uvádí předseda ČÚZK Ing. Karel Večeře mj. tato konstatování...
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Read the articleSpravujete-li ArcGIS Server na systémech Windows Server 2008 či Windows 7, vyhněte se zatím aktualizacím Windows KB4056894, KB4056568 a KB4056897. Po jejich instalaci se vyskytují problémy s některými geoprocessingovými službami, které končí s chybovým kódem 8273.
Doporučujeme instalaci těchto aktualizací pozdržet. Pokud jste již aktualizace nainstalovali a pozorujete popsané problémy, pro další bezproblémový běh systému prosím proveďte jejich odinstalaci.
Další informace je možné najít na tomto odkazu.
Společnost Esri na řešení tohoto problému pracuje a o jeho výsledku Vás budeme informovat.
Spravujete-li ArcGIS Server na systémech Windows Server 2008 či Windows 7, vyhněte se zatím aktualizacím Windows KB4056894, KB4056568 a KB4056897. Po jejich instalaci se vyskytují problémy s některými geoprocessingovými službami, které končí s chybovým kódem 8273.
Doporučujeme instalaci těchto aktualizací pozdržet. Pokud jste již aktualizace nainstalovali a pozorujete popsané problémy, pro další bezproblémový běh systému prosím proveďte jejich odinstalaci.
Další informace je možné najít na tomto odkazu.
Společnost Esri na řešení tohoto problému pracuje a o jeho výsledku Vás budeme informovat.
Aktualizace ke dni 29. 1. 2018:
Společnost Esri vydala opravný balíček k řešení této chyby. Naleznete jej v samostatném článku v sekci Tipy a Triky.
V článku „200. výročí stabilního katastru vybízí k zamyšlení o historii i současnosti pozemkových evidencí“, publikovaném v Geodetickém a kartografickém obzoru, 2018, č. 1, uvádí předseda ČÚZK Ing. Karel Večeře mj. tato konstatování...
As photovoltaic plants age, their efficiency often falls due to the underperformance of one component or another, requiring PV plant owners to conduct expensive and time-consuming thermal inspections to get to the bottom of the problem. EASY PV, a GSA-funded Horizon 2020 project, is using remotely piloted aircraft systems (RPAS) to provide a more effective and cost-efficient solution.
As Europe’s older PV plants start to reach over ten years of continuous operations, some of their individual modules and components are reaching the end of their design life span. The associated failures and breakdowns mean that plant owners are now paying a lot of attention to maintenance technologies and processes in order to enhance energy production at their plants.
Thermographic analysis is the best and most effective way to locate defective cells and modules in PV arrays. However, thermal inspections, currently performed by operators with handheld cameras, are time consuming and can be expensive, due to the associated safety procedures required for those conducting the tests.
The current state of the art solutions exploit RPAS technology to gather thermal images. This reduces the time, costs and risks for personnel involved in maintenance operations. However, these solutions do not normally use geo-referencing techniques. This means that a huge amount of post processing work is required to get a PV plant status synthesis that is viable for the plant owners.
Responding to this need for a more efficient PV plant inspection solution, EASY PV (EGNSS High-Accuracy System Improving Photovoltaic Plant Maintenance) is building an automated system for acquiring, geo-referencing and processing images, both visual and thermal, using an RPAS equipped with a high-accuracy EGNSS receiver.
Marco Nisi, Head of Integrated GNSS Solutions at Sistematica S.p.A., the coordinator of the project, said that recent tests had shown extremely encouraging results. “The EASY-PV solution has had the experience of monitoring a dozen selected PV plants in Italy, mainly in Terni, Caserta and Cuneo. More than 98% of faulty panels were correctly recognised and a final report was generated in a very short period of time. This gives us the confidence to confirm our presence on the Italian market and paves the way to introduce the service all over Europe, thanks to our growing RPAS pilots’ and PV maintainers’ affiliation network,” he said.
EASY-PV was presented at two energy events at the end of last year. At the first of these - the Key Energy trade fair in Rimini on 7-10 November - the GSA supported EASY-PV, attending as its main sponsor. At the event, the GSA also presented upcoming Galileo services that support energy-related applications to stakeholders in the energy value chain.
The second event was the O&M and Asset Management Conference in London in December, which was organised by the Solar Trade Association and SolarPower Europe (formerly the European Photovoltaic Industry Association – EPIA). The EASY-PV solution was presented as a case study at this event, which facilitated networking with peers, clients and suppliers. Galileo was introduced as a key element of the EASY-PV solution, with the GSA acting as a partner - promoting O&M best practice guidelines across Europe, increasing awareness and encouraging industry uptake.
Media note: This feature can be republished without charge provided the European GNSS Agency (GSA) is acknowledged as the source at the top or the bottom of the story. You must request permission before you use any of the photographs on the site. If you republish, we would be grateful if you could link back to the GSA website (http://www.gsa.europa.eu).
As photovoltaic plants age, their efficiency often falls due to the underperformance of one component or another, requiring PV plant owners to conduct expensive and time-consuming thermal inspections to get to the bottom of the problem. EASY PV, a GSA-funded Horizon 2020 project, is using remotely piloted aircraft systems (RPAS) to provide a more effective and cost-efficient solution.
As Europe’s older PV plants start to reach over ten years of continuous operations, some of their individual modules and components are reaching the end of their design life span. The associated failures and breakdowns mean that plant owners are now paying a lot of attention to maintenance technologies and processes in order to enhance energy production at their plants.
Thermographic analysis is the best and most effective way to locate defective cells and modules in PV arrays. However, thermal inspections, currently performed by operators with handheld cameras, are time consuming and can be expensive, due to the associated safety procedures required for those conducting the tests.
The current state of the art solutions exploit RPAS technology to gather thermal images. This reduces the time, costs and risks for personnel involved in maintenance operations. However, these solutions do not normally use geo-referencing techniques. This means that a huge amount of post processing work is required to get a PV plant status synthesis that is viable for the plant owners.
Responding to this need for a more efficient PV plant inspection solution, EASY PV (EGNSS High-Accuracy System Improving Photovoltaic Plant Maintenance) is building an automated system for acquiring, geo-referencing and processing images, both visual and thermal, using an RPAS equipped with a high-accuracy EGNSS receiver.
Marco Nisi, Head of Integrated GNSS Solutions at Sistematica S.p.A., the coordinator of the project, said that recent tests had shown extremely encouraging results. “The EASY-PV solution has had the experience of monitoring a dozen selected PV plants in Italy, mainly in Terni, Caserta and Cuneo. More than 98% of faulty panels were correctly recognised and a final report was generated in a very short period of time. This gives us the confidence to confirm our presence on the Italian market and paves the way to introduce the service all over Europe, thanks to our growing RPAS pilots’ and PV maintainers’ affiliation network,” he said.
EASY-PV was presented at two energy events at the end of last year. At the first of these - the Key Energy trade fair in Rimini on 7-10 November - the GSA supported EASY-PV, attending as its main sponsor. At the event, the GSA also presented upcoming Galileo services that support energy-related applications to stakeholders in the energy value chain.
The second event was the O&M and Asset Management Conference in London in December, which was organised by the Solar Trade Association and SolarPower Europe (formerly the European Photovoltaic Industry Association – EPIA). The EASY-PV solution was presented as a case study at this event, which facilitated networking with peers, clients and suppliers. Galileo was introduced as a key element of the EASY-PV solution, with the GSA acting as a partner - promoting O&M best practice guidelines across Europe, increasing awareness and encouraging industry uptake.
Media note: This feature can be republished without charge provided the European GNSS Agency (GSA) is acknowledged as the source at the top or the bottom of the story. You must request permission before you use any of the photographs on the site. If you republish, we would be grateful if you could link back to the GSA website (http://www.gsa.europa.eu).
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Read the articleThe ESCAPE project, funded under the European GNSS Agency’s (GSA) Fundamental Elements programme, has completed the preliminary design of its ESCAPE GNSS Engine (EGE), an innovative positioning engine that leverages the Galileo signal to provide a critical positioning component in autonomous vehicles.
To navigate autonomously and safely, vehicles require perception systems that locate, recognise, identify, and classify objects around them. The more complex the navigation functions, the more sensors are needed to achieve the degree of robustness required to drive safely in complex traffic conditions. This is where GNSS-based absolute location estimates come in.
The EGE prototype design includes several major components: a novel multi-frequency, multi-constellation GNSS receiver chipset for automotive use; the hardware and software architectures; and the algorithms for data fusion, positioning and integrity. It also covers a safety analysis of all the elements of the positioning engine. Consequently, the EGE will enable vehicles to navigate in high automation modes (SAE level 4) in various operational environments.
The positioning capability of the EGE is based on a complex algorithm produced by the GNSS sensor. Its measurements are integrated with those from an inertial unit (IMU) to provide the baseline standard point positioning function. A second positioning level is provided by precise point positioning, which gets sets of precise corrections from the Internet for the GNSS measurements. Finally, camera-based positioning, enabled by the processing of high-definition maps with lane markings and merged with other vehicle sensors, offers a third level of positioning, enhancing the other levels to achieve maximum possible accuracy.
The whole architecture of the EGE hardware has been conceived based the most recent practices in the design of automotive electronic control units, so that all the interfaces, configurations and form factors are compliant with widely recognised sector trends.
The main distinguishing feature of the ESCAPE automotive-grade GNSS receiver is its ability to simultaneously process signals from two different GNSS bands and from different satellite constellations. Although this capability is common in high-end professional receivers, it is cutting-edge in the automotive Tier-2 panorama.
The receiver is also a first-of-a-kind device in its segment to support the new Navigation Message Authentication (NMA) service of Galileo, the additional anti-spoofing service to be offered by Galileo on the open E1 signal starting from 2018. Finally, the new GNSS receiver comes with several core signal-processing enhancements: better receiver sensitivity and tracking capability, multipath mitigation, more IF channels and flexibility in routing IF samples, jamming detection and mitigation, and optimisation of the GNSS data flow.
The result is an ESCAPE GNSS sensor that combines in a unique device a high-end GNSS technology traditionally reserved for professional applications, innovative dual-band Galileo processing, as well as all the hardware and software safety aspects that are needed to certify the component for the automotive market.
Launched in October 2016, the ESCAPE project is led by the Spanish company FICOSA in collaboration with GMV, Renault, IFSTTAR, STMicroelectronics and the Istituto Superiore Mario Boella. The project is funded under the European GNSS Agency’s (GSA) Fundamental Elements programme, a research and development (R&D) funding mechanism supporting the development of GNSS-enabled chipsets, receivers and antennas.
The project has now entered its second year, during which the first EGE hardware samples will be released, along with a sequence of three integration steps and tests distributed throughout the year. The second and final hardware release is expected during the project’s third year.
For more information, see: http://www.gnss-escape.eu/
Media note: This feature can be republished without charge provided the European GNSS Agency (GSA) is acknowledged as the source at the top or the bottom of the story. You must request permission before you use any of the photographs on the site. If you republish, we would be grateful if you could link back to the GSA website (http://www.gsa.europa.eu).
Technical knowledge and holistic approaches for addressing water loss
BEIJING – Jan. 16, 2018 – Bentley Systems, Incorporated, a leading global provider of comprehensive software solutions for advancing infrastructure, today announced that its Bentley Institute Press publication, Water Loss Reduction, is now available in Chinese.
Water Loss Reduction, written by a group of industry experts from all over the world, provides comprehensive, state-of-the-art technical knowledge and holistic approaches for addressing water loss in urban water systems. The book examines water loss reduction best practices including model-based leakage detection, pressure management, water balance or water audit (which is recommended by the International Water Association), minimum night flow monitoring, and various device-based leakage detection methods.
Dr. Zheng Yi Wu, Bentley Fellow, technical editor and co-author of Water Loss Reduction, commented, “The best practices in Water Loss Reduction are very useful in China where many long-distance water transmissions, including the South-North Water Transferring Project, are being completed to mitigate water shortages in large cities. However, water is often lost from underground distribution pipelines due to leakage. Reducing water leakage is not only the best alternative of ‘new’ water sources, but is also nationally strategic to sustain economic development and on-going urbanization in China. Therefore, we are pleased to offer this essential guide for Chinese utilities committed to detecting, managing, and limiting water loss.”
The original English edition of the book was translated into Chinese by Dr. Qingzhou Zhang, Dr. Yuan Huang, and the research team led by Professor Zhao Hongbin from Harbin Institute of Technology. Professor Zhao, the leading authority of water distribution modeling in China, commented, “This book illustrates and elaborates on comprehensive theoretical principles and practical applications, and its state-of-the-art technical references demonstrate the innovative research and real-world practices of urban water loss reduction and management. This book project also sets an excellent example for effective collaboration between Chinese and overseas institutions to advance research and water system management in China. I sincerely wish that this translated book, together with other work by our team, can help to address the challenge of water loss reduction in China and enhance water system management in general.”
The authors of this extensive work include: Zheng Yi Wu, Ph.D., Bentley Fellow, research director, Bentley, U.S.A.; Malcolm Farley, CEng, CEnv, C.WEM and FCIWEM, principal consultant at Malcolm Farley Associates, U.K., and leader of the Publications, Communication and Conferences team of IWA Water Loss Task Force; David Turtle, BA (Oxon), CEng, MICE, supply planning manager, United Utilities, U.K.; Sanjay Dahasahasra, Ph.D., member secretary, Maharashtra Jeevan Pradhikaran, India; Madhuri Mulay, Ph.D., head of IT Cell, Maharashtra Jeevan Pradhikaran, India; Joby Boxall, Ph.D., professor of Water Infrastructure Engineering, University of Sheffield, U.K.; Stephen Robert Mounce, Ph.D., research associate, University of Sheffield, U.K.; Yehuda Kleiner, Ph.D., senior research officer and group leader at National Research Council, Canada; and Zoran Kapelan, Ph.D., professor in Water System Engineering, Centre for Water Systems at the University of Exeter, U.K.
The Chinese translation of Water Loss Reduction is published by China Architecture and Building Press and is available in books stores in China, and online.
About China Architecture and Building Press
Founded in June 1954, China Architecture & Building Press (CABP) is a specialized technical press in China directly subordinate to the Ministry of Construction. Being committed to the documentation, conservation and enhancement of Chinese culture in architecture, to the promotion of scientific and technological advance of the Chinese construction industry, and to the publicity of construction achievements in China, CABP has, in the past 50 years, presented Chinese workers in the fields of architecture and construction with a great number of excellent books. Learn more about CABP.
About Bentley Institute Press
Bentley Institute Press is a knowledge leader in the publication of textbooks and professional reference works for BIM advancement of the architectural, engineering, and construction (AEC), operations, geospatial, and educational communities. A sampling of its growing list of titles includes books covering MicroStation, building analysis and design, construction, road and site, plant design, structural analysis and design, and water and wastewater analysis – all written by experts in their respective disciplines. For more information about Bentley Institute Press, visit www.bentley.com/books.
About Bentley Systems
Bentley Systems is a global leader in providing engineers, architects, geospatial professionals, constructors, and owner-operators with comprehensive software solutions for advancing the design, construction, and operations of infrastructure. Founded in 1984, Bentley has more than 3,000 colleagues in over 50 countries, more than $600 million in annual revenues, and since 2011 has invested more than $1 billion in research, development, and acquisitions.
Additional information about Bentley Systems is available at www.bentley.com.
Bentley and the “B” Bentley logo are either registered or unregistered trademarks or service marks of Bentley Systems, Incorporated or one of its direct or indirect wholly owned subsidiaries. All other brands and product names are trademarks of their respective owners.
The post Představujeme mobilní aplikaci IDS IREDO pro cestující v Pardubickém i Královéhradeckém kraji appeared first on T-MAPY spol. s r.o..
Pokud vás zajímá současné politické dění, určitě nepřehlédněte článek Mgr. Jakuba Lyska na serveru GISportal.cz. Naleznete zde volební mapy popisující výsledky prvního kola prezidentských voleb, v nichž se autor vedle vizualizace úspěšnosti jednotlivých kandidátů zabývá také několika dalšími analýzami. Zajímavé je například porovnání aktuálních výsledků s politickými preferencemi jednotlivých regionů.
Mgr. Jakuba Lyska si můžete pamatovat z Konference GIS Esri v ČR, kde s doc. Tomášem Lebedou podrobně analyzovali volby do Poslanecké sněmovny Parlamentu ČR 2017. (Na záznam jejich přednášky se můžete podívat na našem Youtube kanálu.)
A newly published White Paper provides developers with in-depth information on accessing and using GNSS raw measurements with Android, to implement advanced GNSS techniques in mass-market devices.
Google’s announcement that GNSS raw measurements would be made available from Android 7.0 devices (i.e., Nougat) marked the first-time developers had access to carrier and code measurements and decoded navigation messages from a mass-market device.
The advantages of using these measurements are many. For instance, developers can use this information to implement advanced GNSS techniques in mass-market devices and to compute a position using selected satellites/constellations, optimizing the use of Galileo. When combined with external sensors, raw measurements increase the time when position, velocity and time (PVT) can be computed. More so, Receiver Autonomous Integrity Monitoring provides another layer of integrity in mass-market devices using raw measurements.
“We believe these raw measurements are a real game changer, re-defining the GNSS on our smartphones,” says Lukasz Bonenberg from the University of Nottingham and a member of the GSA’s GNSS Raw Measurements Task Force. “Not only does it allow us to work directly with GNSS data – for post-processing, testing and teaching – but also to find new ways of using GNSS on smartphones, which will lead to new applications that add value to smartphone-based services.”
Despite these advantages, the use of GNSS raw measurements remains limited to testing by GNSS experts. In fact, there are only a handful of smartphone apps that currently use raw measurements. This is, in part, due to the fact that Java coders are usually not GNSS experts, meaning they need help understanding Android raw measurements. Furthermore, the GNSS community typically works with standard formats, such as RINEX and NMEA. As neither of these are available for an Android platform, developers must learn new, non-standard formats.
To help bridge this knowledge gap and facilitate the use of GNSS Raw Measurements in mass market applications, the GSA’s GNSS Raw Measurement Task Force has published a White Paper entitled Using GNSS Raw Measurements on Android Devices: Towards better location performance in mass market applications. As the de facto international reference for accessing and using raw measurements, the White Paper aims to present raw measurements to the GNSS community, demonstrate their use through practical examples and increase awareness and use of GNSS in general.
“In the White Paper we present some examples of the main mass-market application areas that could benefit from increased accuracy,” says Gian Gherardo Calini, Head of Market Development Department at GSA. “This represents the starting point, one that should stimulate application developers – and even GNSS experts – to explore using raw measurements and at the same time help optimize the use of Galileo.”
The White Paper includes an in-depth description of raw measurements and how to use them, along with numerous case studies and information on user benefits. It is divided into four parts:
The paper is free of charge and can be downloaded here.
Launched in June 2017 and coordinated by the European GNSS Agency (GSA), the GNSS Raw Measurements Task Force aims to share knowledge and expertise on Android raw measurements and its use, including its potential for high accuracy positioning techniques relevant to mass market applications. The Task Force includes GNSS experts, scientists and market players, all of whom are dedicated to promoting a wider use of these raw measurements.
More information on the Task Force, its members and their work can be found here.
Galileo stands to play a big role in the use of GNSS raw measurements. For example, a recent experiment compared the performance of two PVT solutions, one that included Galileo measurements and one that did not. Both solutions were based on raw measurements coming from a smartphone. With raw measurements, users can select which constellation the PVT uses and which satellites are filtered out. This experiment showed that by opting to include Galileo in the PVT solution through the raw measurements, users can easily experience the added accuracy and availability it provides.
“Thanks to the raw measurements, we could compute the Galileo only fix in our lab,” says Airbus’ Moises Navarro Gallardo, who is also a Task Force member. “Smartphone application developers finally have access to more detailed data by satellite, and the White Paper fully describes how to work with this data.”
The experiment, which is further described in the White Paper, also shows how raw measurements enable other GNSS differentiators. For example, Galileo’s Open Service Authentication, a unique feature not found in other constellations, is included in raw measurements. As a result, developers can use this to authenticate navigation messages.
“After testing some of the smartphones that support GNSS raw measurements, it is clear we can further demonstrate the added value of the Galileo constellation in a multi-GNSS mass-market receiver,” adds Task Force member Paolo Crosta from the European Space Agency (ESA).
Media note: This feature can be republished without charge provided the European GNSS Agency (GSA) is acknowledged as the source at the top or the bottom of the story. You must request permission before you use any of the photographs on the site. If you republish, we would be grateful if you could link back to the GSA website (http://www.gsa.europa.eu).
V roce 1492 přeplavil Kolumbus modrý oceán. V roce 2008 se po něm pojmenovaný Columbus vydal na plavbu do vesmíru.