CHC Navigation (CHCNAV) has released the RS10 handheld SLAM lidar laser scanner integrated with a full real-time kinematics (RTK) GNSS receiver.
среда, 27 марта 2024 г.
понедельник, 8 января 2024 г.
Scanarea laser terestra UTM bloc 1 / Наземное лазерное сканирование ТУМ корпус 1
In octombrie 2023 a fost efectuată scanare laser terestră a blocului nr.1 Universității Tehnice a Moldovei din bd. Stefan cel Mare si Sfânt 168 din mun. Chișinău. Lucrarea era executată în cadrul tezei de master a ing. Maxim Covalciuc. Scanarea era efectuată cu aparat Leica BLK 360 G1 și prelucrată in soft Leica Cyclone Register 360. Au fost in total 53 stații de scanare pentru subsol, sala, parter, încăperi auxiliare și acoperiș. Rezoluția scanării și calitatea imaginilor era setată la maximum. Precizia medie a setului de date este estimata la 0,006m. Point cloud obținut este exportat in formatele RCP, E57 și LGS.
Proiectul poate fi descărcat \ Проект можно скачать
AutoCAD RECAP (RCP) format (38 Gb!!!) - ZIP archive (39 arhives).
Скачайте все 39 архивов в одну папку и распакуйте первый файл - UTM bl1.zip.001
Descărcați toate 39 arhive intr-un folder și dezarhivați primul fișier - UTM bl1.zip.001
LGS format (26Gb!) + Leica TruView
В октябре 2023 было выполнено наземное лазерное сканирование первого корпуса Технического Университета Молдовы по бул. Штефана чел Маре 168 в мун. Кишиневе. Работа была выполнена в рамках магистерской работы инж. Максима Ковальчука. Сканирование было произведено аппаратом Leica BLK 360 G1 и обработано ПО Leica Cyclone Register 360. Всего было 53 станции сканирования в подвале, партере, вспомогательных помещениях и чердаке. Было использовано максимальное разрешение и качество панорамных изображений. Средняя точность набора данных оценена в 0,006 м. Облако точек было экспортировано в форматы RCP, E57 și LGS. Проект доступен для скачивания в полном объеме по ссылкам выше.
понедельник, 13 ноября 2023 г.
Greater London brings all data providers onto National Underground Asset Register
Greater London has become the first part of the country in which all major utilities providers and local authorities are providing data for the National Underground Asset Register (NUAR).
The Greater London Authority (GLA), which is part of the NUAR delivery team, said it has brought over 60 asset owners in the city onto using the register, providing records of over 16 million assets.
The early version of register was formally launched by the Geospatial Commission in April. It is a digital map providing details of underground cables and pipes, being rolled out around the UK to support the installation of further infrastructure.
пятница, 18 августа 2023 г.
GEODNET: Taking A Community Approach to GNSS Corrections
When Mike Horton introduced GEODNET at the ION GNSS+ conference in 2021, he recognized it was a bit of a radical idea that may be met with skepticism—but he also knew it provided a solution to a common frustration, and that’s access to low-cost GNSS corrections with centimeter level accuracy.
воскресенье, 16 июля 2023 г.
Water and sewer GIS map creation for the mun. Straseni, Republic of Moldova
In the year 2021 I was involved into creation of water and sewer GIS map for the mun. Strășeni.
QGIS software and shape file were adopted as a standard for the map. Line map 2017 and orthophoto 2020 was set as a base map for the water and sewery map. National coordinate system MOLDREF99 and Baltic 1977 was set up for the project.
At that moment only map data were on paper - cadaster map printed at scale approximatively 1:4000 with hand drawn water lines. This situation happened because of rehabilitation of water system in mun. Strășeni in 2000s was done without creation of as built documentation.
A lot of sewery lines built before 1990s were digitized from city topo plans 1:500
Sewery lines built after 2015 has been documented with as built survey 1:500 in AutoCAD drawing
After all existing paper documents (including topo plans 1:500) and AutoCAD drawings were processed and "paper" data "moved" to a digital map, we started next step. Map was divided into pages printed at scale 1:1000 and water company personnel checked it and completed.
Overview of atlas pages.
After all corrections and completions were done the final map was printed again and organized into atlas.
QGIS projects windows looks like:
понедельник, 26 декабря 2022 г.
Trimble R12i GNSS System Frequently Asked Questions
What is the difference between the new Trimble TIP technology and the legacy Trimble SurePoint tilt compensation technology found in the Trimble R10 and R12?
Trimble® TIP™ technology uses an Inertial Measurement Unit (IMU) comprised of three accelerometers and three gyroscopes to provide the necessary information for the positioning engine to precisely determine the attitude of the rover, allowing the tilt heading and thus the position of the pole tip to be computed in real time.
On the other hand, Trimble SurePoint™ technology, first introduced in the Trimble R10, uses a magnetometer to determine the tilt heading. Because the heading provided by the magnetometer depends on an accurate global model of the earth's magnetic field, and because the sensor itself is susceptible to local sources of magnetic interference which can render it unusable, the achievable tilt angle is less (15°), compensated points cannot be measured in all instances, and the system must remain static when measuring a compensated point. It is therefore also not possible to use Trimble SurePoint technology for stakeout, whereas Trimble TIP technology doesn't require the system to remain static and is therefore suitable for both measurement and stakeout workflows.
Finally, because Trimble TIP technology uses sensor data to automatically align the IMU to the GNSS reference frame in the field, it is not necessary to perform specific steps to calibrate the sensors, as is the case with the Trimble R10 and Trimble SurePoint technology.
понедельник, 5 декабря 2022 г.
Polk County residents and officials disagree on property lines
As residents accuse the county of moving property line markers while surveying land for its online GIS database, Polk County officials say residents who have misunderstood property descriptions for years are to blame.
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