5 minute pitch held at GeoBuzz 2016 Den Bosch for the OGT Award (which we received in Category "Developers"!). It introduces NLExtract, a toolset to convert Dutch National Open Geodata sets to manageable formats such as PostGIS.
Presented together with Jan-Willem van Aalst and Frank Steggink at the Dutch CartoDay, March 15, 2017. See full program here: http://www.cartodag.nl/programma-cartodag-2017. Subject was how to eventually create online topographical maps from Open but Raw datasets: how to transform (ETL), create maps (QGIS), and publish on the web using Open Source service components like MapServer and MapProxy via http://map5.nl
Abstract in Dutch:
Om bruikbare kaarten te maken is tegenwoordig veel goede open geodata beschikbaar. Maar wat komt er allemaal bij kijken om dat zo praktisch mogelijk te doen? Deze sessie neemt je mee in de levenscyclus van open geodata met tooling zoals NLExtract , GDAL en QGIS . Een greep uit wat er langs komt in dit uur: het maken van PostGIS databases uit PDOK data; het maken van hillshading (reliëfschaduw) uit de AHN2/3; het maken van de OpenTopo kaartbeelden uit combinaties van PDOK bestanden; en het tegelen en opnieuw publiceren van allerlei kaartproducten, bijvoorbeeld op map5.nl .
1) The document describes an air refrigeration system, also known as the Bell-Coleman cycle or reversed Brayton cycle.
2) In this cycle, air is compressed in a compressor, cooled in a heat exchanger, expanded in an expander, and absorbs heat in an evaporator to cool an object.
3) The key assumptions of the Bell-Coleman cycle analysis are that the compression and expansion processes are reversible and adiabatic, there is perfect intercooling in the heat exchanger, and no pressure losses occur in the system.
The document discusses refrigeration systems, including vapor refrigeration systems like the Carnot cycle and vapor compression refrigeration systems (VCRS). It also covers absorption refrigeration systems, which use a secondary substance called an absorbent to absorb the refrigerant into a liquid solution rather than compressing it. Absorption systems have lower work input compared to vapor compression. A common example is the ammonia-water absorption refrigeration system, which uses ammonia as the refrigerant and water as the absorbent.
This document summarizes the basic components and process of a refrigeration cycle. It outlines the four main components: compressor, condenser, metering device, and evaporator. It describes that the compressor increases the pressure and temperature of the refrigerant vapor from the evaporator. In the condenser, heat is removed from the refrigerant as it cools and changes state into a liquid. The metering device then regulates the flow of refrigerant into the evaporator, where it absorbs heat from the surrounding air and changes back into a vapor before returning to the compressor to repeat the cycle.
Presented together with Jan-Willem van Aalst and Frank Steggink at the Dutch CartoDay, March 15, 2017. See full program here: http://www.cartodag.nl/programma-cartodag-2017. Subject was how to eventually create online topographical maps from Open but Raw datasets: how to transform (ETL), create maps (QGIS), and publish on the web using Open Source service components like MapServer and MapProxy via http://map5.nl
Abstract in Dutch:
Om bruikbare kaarten te maken is tegenwoordig veel goede open geodata beschikbaar. Maar wat komt er allemaal bij kijken om dat zo praktisch mogelijk te doen? Deze sessie neemt je mee in de levenscyclus van open geodata met tooling zoals NLExtract , GDAL en QGIS . Een greep uit wat er langs komt in dit uur: het maken van PostGIS databases uit PDOK data; het maken van hillshading (reliëfschaduw) uit de AHN2/3; het maken van de OpenTopo kaartbeelden uit combinaties van PDOK bestanden; en het tegelen en opnieuw publiceren van allerlei kaartproducten, bijvoorbeeld op map5.nl .
1) The document describes an air refrigeration system, also known as the Bell-Coleman cycle or reversed Brayton cycle.
2) In this cycle, air is compressed in a compressor, cooled in a heat exchanger, expanded in an expander, and absorbs heat in an evaporator to cool an object.
3) The key assumptions of the Bell-Coleman cycle analysis are that the compression and expansion processes are reversible and adiabatic, there is perfect intercooling in the heat exchanger, and no pressure losses occur in the system.
The document discusses refrigeration systems, including vapor refrigeration systems like the Carnot cycle and vapor compression refrigeration systems (VCRS). It also covers absorption refrigeration systems, which use a secondary substance called an absorbent to absorb the refrigerant into a liquid solution rather than compressing it. Absorption systems have lower work input compared to vapor compression. A common example is the ammonia-water absorption refrigeration system, which uses ammonia as the refrigerant and water as the absorbent.
This document summarizes the basic components and process of a refrigeration cycle. It outlines the four main components: compressor, condenser, metering device, and evaporator. It describes that the compressor increases the pressure and temperature of the refrigerant vapor from the evaporator. In the condenser, heat is removed from the refrigerant as it cools and changes state into a liquid. The metering device then regulates the flow of refrigerant into the evaporator, where it absorbs heat from the surrounding air and changes back into a vapor before returning to the compressor to repeat the cycle.
Slides originally used in interview by Jonna on De Grote Geo Show, a live-streaming webshow by OSGeo.nl. Aired on oct 1, 2020. Video is on YouTube: https://www.youtube.com/watch?v=3l_a5Up8Rgc
Later adapted/expanded for general online interviews.
THIS IS VERSION 2 AND CURRENT, on SlideShare! Version 1 is still on SlideShare as it is linked...
Some highlights of my professional career.
PLEASE SEE VERSION 2 FOR CURRENT
Slides originally used in interview by Jonna on De Grote Geo Show, a live-streaming webshow by OSGeo.nl. Aired on oct 1, 2020. Video is on YouTube: https://www.youtube.com/watch?v=3l_a5Up8Rgc
Later adapted/expanded for general online interviews.
Some highlights of my professional career.
This document summarizes Just van den Broecke's presentation on open sensor networks. It discusses (1) the Smart Emission Nijmegen project from 2015-2017 where citizens measured air quality and noise using low-cost sensors to build an open sensor platform. It then (2) describes the Smart Emission platform resulting from the project which integrates sensor data using open standards and APIs. Finally, it (3) provides an example of bridging IoT sensors to the platform using the SensorThings API to map sensor data from The Things Network to the API in real-time.
Presentation at LoRaWAN TheThingsNetwork makers event (make a Pet-Tracker with LoRa) organized by Ruimteschepper at Warehouse of Innovation Eindhoven (also home to IoT Eindhoven Meetup Group). Summarizes Smart Emission architecture, thoughts on tech for Spatio-Temporal Data, Internet of Things sorry Internet of Silos. Ending with a demo on LoRaWAN TheThingsNetwork integration with the OGC SensorThings API using MQTT Bridging.
Presentation provided at "Geo Gebruikersfestival", okt 31, 2018, Amersfoort, The Netherlands. Sketches how from several Sensor projects the Smart Emission Platform emerged and migrated to the PDOK Platform. How a next step could be be a Dutch national Sensor SDI asa a federated/distributed architecture. Special attention is given to APIs, in particular the SensorThings API.
Opening by me as Chair OSGeo.nl Foundation, the Dutch Local Chapter of OSGeo.org at FOSS4GNL Conference on July 11, 2018 at Aeres Highschool, Almere, the Netherlands.
This document provides an overview of Stetl, an open source spatial ETL tool. Stetl uses Python components and configuration files to orchestrate multi-step ETL workflows. Key concepts discussed include using Stetl to extract data from various sources like GML, CSV and ZIP files, transform it using filters like XSLT, and load it into targets like PostGIS, GeoPackage and WFS. Example Stetl configurations are provided to extract Dutch cadastre data from GML ZIP files and load it to PostGIS and GeoPackage. Stetl is also used in the Smart Emission platform to harvest sensor data from multiple sources and perform validation, calibration and aggregation before publishing to web services.
Opening words by Just van den Broecke - Chair of OSGeo.nl Foundation, the Dutch local Chapter of OSGeo.org on joint OSGeo.nl OpenStreetMap NL NJ Party in cafe Dudok Hilversum. Review of OSGeo.nl Events in 2017 and upcoming events in 2018, also international events.
Slides used at the opening of the OSGeo.nl Day on nov 22, 2017 at GeoBuzz in Den Bosch, The Netherlands. Note the new designs of OSGeo localized for OSGeo.nl.
The document discusses the Smart Emission project, which aims to deploy low-cost air quality sensors throughout cities to create inclusive citizen sensor networks for environmental monitoring. It outlines key questions around sensor selection, calibration, spatial deployment, data management, and citizen involvement. The goals are to make pollution monitoring more transparent and democratic through open data, while using cost-effective sensing devices and geospatial approaches to engage citizens in analysis and help work towards more sustainable cities.
Explains basics of Stetl, an Open Source spatial ETL framework. More on http://stetl.org. Talk given on GeoPython conference, June 24, 2016, Basel, Switserland.
High-level presentation on the Data-infastructure for project-team and participating citizens at Radboud Univeristy Nijmegen, may 26, 2016 for the Smart Emission project: "Het Smart Emission project draait om het in kaart brengen van luchtkwaliteit, geluid, trillingen en meteorologische indicatoren in de stad op een fijnmazig schaalniveau, door inwoners met zogenoemde burger-sensor-netwerken." (Bron: http://smartemission.nl). Project partners: Radboud Universiteit, Gemeente Nijmegen, Rijksinstituut voor Volksgezondheid en Milieu (RIVM), Geonovum, Intemo, CityGIS and offcourse Nijmegen citizens.
Presentation given at the OSGeo.nl Day http://osgeo.nl at GeoBuzz Conference on nov 25, 2015. Overview of NLExtract and in particular ETL (conversion) for BAG, the open geo-dataset for Dutch Addresses and Buildings.
Slides I presented at the Dutch "Doorbraak 3D - Trekkersoverleg" ( 3D Breakthrough Representatives Meetup) at Geonovum, sept 3, 2015. Trying to provide an overview of 3D Open Standards efforts and suggestions for future actions/pilots with some of the CesiumJS-based tiling standards using Dutch public open base registry data ("Basis Registraties").
Eng: originally planned as a talk/workshop on hiking with GPS, but evolving into a wider talk about the evolution of navigation and Natural Navigation techniques.
See also the main website: http://gps.justobjects.nl.
Below Dutch:
Plaatsbepaling en navigatie is iets van alle tijden. Zij is mee-geëvolueerd met de mensheid. Vandaag de dag doen we navigatie met GPS via bijv “De TomTom” of steeds vaker via onze Smartphone. We dreigen daarmee echter belangrijke vaardigheden te verliezen zoals kaartlezen en het gebruik van kompas. Maar deze laatste twee middelen waren ook weer een stap in de lange evolutie van Navigatie. Zoals de meesten van jullie weten heb ik veel interesse in de evolutie van de mensheid. In die context heb ik de laatste tijd nagedacht hoe navigatie zich heeft ontwikkeld. Ik zal dit praatje chronologisch opbouwen. Dan komen we vanzelf uit bij "Wandelen met de GPS" waar de nadruk op gaat liggen deze middag.
Highlights and achievements in 2014 from the OSGeo.nl, the Dutch-speaking Local Chapter of the Open Source Geospatial Foundation, OSGeo.org. Presented jan 11 2015 by Gert-Jan and Just at the OSGeo.nl/OpenStreetMap NL new years party. See more presentations from that meeting on our website: http://osgeo.nl
My talk on the OSGeo.nl Day 2014 on nov 25, 2014, Den Bosch. This event was organized by the OSGeo.nl, the Dutch Language Chapter of OSGeo.org and embedded in the GeoBuzz conference. Main subject is how to transform and visualize (unlock) Dutch Open Geo-datasets using open source tools like NLExtract (http://nlextract.nl), Stetl (http://www.stetl.org). In particular, there is a last minute addition on unlocking 3D data, Top10NL3D, using CesiumJS (http://www.cesiumjs.org) , an Open Source browser/WebGL-based 3D visualization framework ala Google Earth (but open and without plugins). The 3D part of this talk was also given the same day at the "3D Doorbraak" workshop (Jantien Stoter et al).
Big Data - Introduction and Research Topics - for Dutch KadasterJust van den Broecke
This document discusses big data and big geo data. It begins by defining big data and noting the challenges of collecting, managing, storing, searching, sharing, transferring, analyzing and visualizing large, complex datasets. It then discusses using big data as an opportunity rather than a threat by developing new ways to store and analyze diverse data to generate insights. Specific examples discussed include data used by Amazon, Obama's 2012 re-election campaign, meteorology, lidar data, and linked open data projects in the UK and Netherlands. The document raises potential applications of big data for the Dutch Cadastre, including data analysis, linking datasets, real-time access, multidimensional visualization and querying basic registrations.
Presenting the status of the "SOSPilot". A SensorWeb/IoT project where raw AirQuality data from The Netherlands is transformed (ETL) into Web Services like WMS-Time/WFS and in particular the OGC Sensor Observation Service (SOS). Project at Geonovum with partners, a.o.: RIVM, 52 North, and IRCEL - CELINE (Belgium). Work in progress, striving for EIONET IPR and INSPIRE compliance.
Combined tools like Stetl, PostGIS, HeronViewer, GeoServer, and 52North SWE-line. All FOSS. All promising tools as it all just worked, also thanks to the partners' support, within my 100-hour effort. Find more on http://sensors.geonovum.nl
Original version july 2, 2014. Updated with eionet-reporting and Geonovum weather station on okt 27, 2014.
Slides originally used in interview by Jonna on De Grote Geo Show, a live-streaming webshow by OSGeo.nl. Aired on oct 1, 2020. Video is on YouTube: https://www.youtube.com/watch?v=3l_a5Up8Rgc
Later adapted/expanded for general online interviews.
THIS IS VERSION 2 AND CURRENT, on SlideShare! Version 1 is still on SlideShare as it is linked...
Some highlights of my professional career.
PLEASE SEE VERSION 2 FOR CURRENT
Slides originally used in interview by Jonna on De Grote Geo Show, a live-streaming webshow by OSGeo.nl. Aired on oct 1, 2020. Video is on YouTube: https://www.youtube.com/watch?v=3l_a5Up8Rgc
Later adapted/expanded for general online interviews.
Some highlights of my professional career.
This document summarizes Just van den Broecke's presentation on open sensor networks. It discusses (1) the Smart Emission Nijmegen project from 2015-2017 where citizens measured air quality and noise using low-cost sensors to build an open sensor platform. It then (2) describes the Smart Emission platform resulting from the project which integrates sensor data using open standards and APIs. Finally, it (3) provides an example of bridging IoT sensors to the platform using the SensorThings API to map sensor data from The Things Network to the API in real-time.
Presentation at LoRaWAN TheThingsNetwork makers event (make a Pet-Tracker with LoRa) organized by Ruimteschepper at Warehouse of Innovation Eindhoven (also home to IoT Eindhoven Meetup Group). Summarizes Smart Emission architecture, thoughts on tech for Spatio-Temporal Data, Internet of Things sorry Internet of Silos. Ending with a demo on LoRaWAN TheThingsNetwork integration with the OGC SensorThings API using MQTT Bridging.
Presentation provided at "Geo Gebruikersfestival", okt 31, 2018, Amersfoort, The Netherlands. Sketches how from several Sensor projects the Smart Emission Platform emerged and migrated to the PDOK Platform. How a next step could be be a Dutch national Sensor SDI asa a federated/distributed architecture. Special attention is given to APIs, in particular the SensorThings API.
Opening by me as Chair OSGeo.nl Foundation, the Dutch Local Chapter of OSGeo.org at FOSS4GNL Conference on July 11, 2018 at Aeres Highschool, Almere, the Netherlands.
This document provides an overview of Stetl, an open source spatial ETL tool. Stetl uses Python components and configuration files to orchestrate multi-step ETL workflows. Key concepts discussed include using Stetl to extract data from various sources like GML, CSV and ZIP files, transform it using filters like XSLT, and load it into targets like PostGIS, GeoPackage and WFS. Example Stetl configurations are provided to extract Dutch cadastre data from GML ZIP files and load it to PostGIS and GeoPackage. Stetl is also used in the Smart Emission platform to harvest sensor data from multiple sources and perform validation, calibration and aggregation before publishing to web services.
Opening words by Just van den Broecke - Chair of OSGeo.nl Foundation, the Dutch local Chapter of OSGeo.org on joint OSGeo.nl OpenStreetMap NL NJ Party in cafe Dudok Hilversum. Review of OSGeo.nl Events in 2017 and upcoming events in 2018, also international events.
Slides used at the opening of the OSGeo.nl Day on nov 22, 2017 at GeoBuzz in Den Bosch, The Netherlands. Note the new designs of OSGeo localized for OSGeo.nl.
The document discusses the Smart Emission project, which aims to deploy low-cost air quality sensors throughout cities to create inclusive citizen sensor networks for environmental monitoring. It outlines key questions around sensor selection, calibration, spatial deployment, data management, and citizen involvement. The goals are to make pollution monitoring more transparent and democratic through open data, while using cost-effective sensing devices and geospatial approaches to engage citizens in analysis and help work towards more sustainable cities.
Explains basics of Stetl, an Open Source spatial ETL framework. More on http://stetl.org. Talk given on GeoPython conference, June 24, 2016, Basel, Switserland.
High-level presentation on the Data-infastructure for project-team and participating citizens at Radboud Univeristy Nijmegen, may 26, 2016 for the Smart Emission project: "Het Smart Emission project draait om het in kaart brengen van luchtkwaliteit, geluid, trillingen en meteorologische indicatoren in de stad op een fijnmazig schaalniveau, door inwoners met zogenoemde burger-sensor-netwerken." (Bron: http://smartemission.nl). Project partners: Radboud Universiteit, Gemeente Nijmegen, Rijksinstituut voor Volksgezondheid en Milieu (RIVM), Geonovum, Intemo, CityGIS and offcourse Nijmegen citizens.
Presentation given at the OSGeo.nl Day http://osgeo.nl at GeoBuzz Conference on nov 25, 2015. Overview of NLExtract and in particular ETL (conversion) for BAG, the open geo-dataset for Dutch Addresses and Buildings.
Slides I presented at the Dutch "Doorbraak 3D - Trekkersoverleg" ( 3D Breakthrough Representatives Meetup) at Geonovum, sept 3, 2015. Trying to provide an overview of 3D Open Standards efforts and suggestions for future actions/pilots with some of the CesiumJS-based tiling standards using Dutch public open base registry data ("Basis Registraties").
Eng: originally planned as a talk/workshop on hiking with GPS, but evolving into a wider talk about the evolution of navigation and Natural Navigation techniques.
See also the main website: http://gps.justobjects.nl.
Below Dutch:
Plaatsbepaling en navigatie is iets van alle tijden. Zij is mee-geëvolueerd met de mensheid. Vandaag de dag doen we navigatie met GPS via bijv “De TomTom” of steeds vaker via onze Smartphone. We dreigen daarmee echter belangrijke vaardigheden te verliezen zoals kaartlezen en het gebruik van kompas. Maar deze laatste twee middelen waren ook weer een stap in de lange evolutie van Navigatie. Zoals de meesten van jullie weten heb ik veel interesse in de evolutie van de mensheid. In die context heb ik de laatste tijd nagedacht hoe navigatie zich heeft ontwikkeld. Ik zal dit praatje chronologisch opbouwen. Dan komen we vanzelf uit bij "Wandelen met de GPS" waar de nadruk op gaat liggen deze middag.
Highlights and achievements in 2014 from the OSGeo.nl, the Dutch-speaking Local Chapter of the Open Source Geospatial Foundation, OSGeo.org. Presented jan 11 2015 by Gert-Jan and Just at the OSGeo.nl/OpenStreetMap NL new years party. See more presentations from that meeting on our website: http://osgeo.nl
My talk on the OSGeo.nl Day 2014 on nov 25, 2014, Den Bosch. This event was organized by the OSGeo.nl, the Dutch Language Chapter of OSGeo.org and embedded in the GeoBuzz conference. Main subject is how to transform and visualize (unlock) Dutch Open Geo-datasets using open source tools like NLExtract (http://nlextract.nl), Stetl (http://www.stetl.org). In particular, there is a last minute addition on unlocking 3D data, Top10NL3D, using CesiumJS (http://www.cesiumjs.org) , an Open Source browser/WebGL-based 3D visualization framework ala Google Earth (but open and without plugins). The 3D part of this talk was also given the same day at the "3D Doorbraak" workshop (Jantien Stoter et al).
Big Data - Introduction and Research Topics - for Dutch KadasterJust van den Broecke
This document discusses big data and big geo data. It begins by defining big data and noting the challenges of collecting, managing, storing, searching, sharing, transferring, analyzing and visualizing large, complex datasets. It then discusses using big data as an opportunity rather than a threat by developing new ways to store and analyze diverse data to generate insights. Specific examples discussed include data used by Amazon, Obama's 2012 re-election campaign, meteorology, lidar data, and linked open data projects in the UK and Netherlands. The document raises potential applications of big data for the Dutch Cadastre, including data analysis, linking datasets, real-time access, multidimensional visualization and querying basic registrations.
Presenting the status of the "SOSPilot". A SensorWeb/IoT project where raw AirQuality data from The Netherlands is transformed (ETL) into Web Services like WMS-Time/WFS and in particular the OGC Sensor Observation Service (SOS). Project at Geonovum with partners, a.o.: RIVM, 52 North, and IRCEL - CELINE (Belgium). Work in progress, striving for EIONET IPR and INSPIRE compliance.
Combined tools like Stetl, PostGIS, HeronViewer, GeoServer, and 52North SWE-line. All FOSS. All promising tools as it all just worked, also thanks to the partners' support, within my 100-hour effort. Find more on http://sensors.geonovum.nl
Original version july 2, 2014. Updated with eionet-reporting and Geonovum weather station on okt 27, 2014.
21. Milo van der Linden
Frank Steggink
Jan-Willem van Aalst
Luuk Schaminee
Stefan de Konink
Edward Mac Gillavry
Richard Duivenvoorde
Bas Couwenberg
“Sebastic”
Geodan
Matthijs van der Deijl
Just van den Broecke
Tom Pesman
Reinout van Rees
OpenGeoGroep