Spatial Cave Mapping in Bulgaria

Modern Methods and Devices
Caves are natural underground spaces formed and shaped over millions of years. Usually part of bigger caverns, they give a first-hand view of water, biology, oil and other subsurface distributions as well as a glimpse of the past when they perhaps offered shelter or sanctuary. Therefore, when exploring a cave, it is useful to not only collect geometric information such as gallery dimensions and directions but also to take photographs and notes of any specific features of interest. Since safe storage, easy management and proper representation of spatial data can be difficult using traditional methods, these are all key requirements... (read more)
2013-04-03 02:05:46

Compact Testing of EDM Instruments

Using Mirrors for Doubling and Tripling Laboratory Space
A new laboratory method for verifying the accuracy of distance measuring solves the problem of having to mount reflectors outside the laboratory. The limited space of the laboratory is duplicated and tripled by using mirrors. The method gives the same results as the standard method. Verification of EDM equipment involves the determination of instrument errors, then used to monitor instrument performance. Periodic calibration aims to minimise systematic error and determine the highest achievable precision. EDM instruments should be calibrated annually; frequency checks should be made semi-annually. There are two methods for calibrating EDM: the field method and the laboratory method.... (read more)
2005-03-21 12:00:00

Forging a Place in the World

South
SOUTH Surveying & Mapping Instrument Co Ltd is headquartered in Guangzhou, southern China's largest city, a key transportation hub and trading port that lies on the Pearl River, navigable to the South China Sea. SOUTH is the largest survey equipment manufacturer and software solutions provider in China, engaged in research, production, distribution and services. Humble BeginningsThe origin of this huge Chinese manufacturer can be traced back to April 1989, when the two original founders, Ma Chao and Yang Zhenpeng, began as a trading company in a tiny office in a small hotel. Business began reselling imported survey instruments in China.... (read more)
2010-09-07 04:55:37

UAS Potential in Archaeology

Archaeology entails the recording of the physical remains left by past generations. Traditionally, archaeological exploration has been by excavation. Other survey techniques have recently gained importance in recording remains that are visible above the ground. Examples include prehistoric fields, settlements and burial remains in upland areas, or industrial landscapes, buildings and standing monuments such as stone circles in other areas. It is more than worthwhile to explore the application of unmanned airborne systems (UASs) in archaeology. In the past most recording was done with tape and a 1m planning frame, while a theodolite was a luxury. More recently total stations, GNSS receivers, terrestrial... (read more)
2016-01-12 11:08:11

Intergeo 2009: ALS, TLS and MLS

Intergeo 2009 took place in Karlsruhe from 22nd to 24th September with a conference and trade-fair. And despite the ongoing credit crunch, this fifteenth Intergeo exceeded all expect­ations of the organisers, the German Association of Surveying - German Society for Geodesy, Geoinformation and Land Management (DVW) and HINTE GmbH. If you missed Intergeo 2009, or are still dizzy from the cacophony of colours, lights and company names bombarding you from the 475 exhibitors this year crammed into apparently ever shrinking stands, you have only to remember three abbreviations that we feel shaped the lead theme of this year’s show: Airborne... (read more)
2009-12-04 11:32:02

Recent Advances in Geodata Acquisition Technologies

No Information without Data
Today’s geodata acquisition technologies combine microprocessors, computer power, solid state drives, complementary metal-oxide-semiconductor (CMOS) sensors, miniaturisation and many more developments. But demand is just as important as supply, and demand is rapidly increasing in our changing world. Read on for details of recent advances in geodata acquisition technologies. In today's world, we are seeing metropolises cluster to form megalopolises, climate change threatens humans, land and livestock in low-lying areas such as river deltas and valleys, and massively populated areas are prone to earthquakes and landslides. All of these factors are increasing the demand for geodata acquisition. This article starts with total stations, continues... (read more)
2016-08-08 09:48:14

Towards Cadastral Intelligence?

Extracting Visible Boundaries from UAV Data through Image Analysis and Machine Learning
The inability to access formal land registration systems fosters insecure land tenure and conflicts, especially in developing countries. This calls for low-cost and scalable mapping solutions aligning with fit-for-purpose land administration. The work presented in this article supports the UAV-based mapping of land tenure inspired by state-of-the-art approaches from remote sensing, geoinformatics and computer vision. The guiding question is how to develop an automated approach that promotes the paradigm shift towards cadastral intelligence which integrates human-based expert knowledge with automatically generated machine-based knowledge. Cadastral mapping contributes to the creation of formal systems for registering and safeguarding land rights. According to... (read more)
2019-05-15 09:07:52

From Survey to Total Solutions

SECON, founded in 1981 and based in Bangalore, India, is an ISO 9001-2000-certified firm employing eight hundred people. The founder faced many initial challenges, but now the company ranks amongst the foremost in India and is also a global player rendering onshore-offshore services. A private limited company since 2000, the firm has since 2006 been part owned by employees.<P> SECON, at first devoted to topographic and mapping services, has since diversified to become a firm providing total solutions for geospatial and design-engineering services that include dynamic data capture, processing, presentation, design and drafting, photogrammetry, Lidar and GIS-based customisation and application... (read more)
2008-08-27 12:00:00

Intergeo 2007 - Preview

Year after year Intergeo demonstrates how exceptionally flourishing is the geo(infor)matics business. Geo(infor)matics is all about improving human understanding of the earth, enabling management and staff in both public and private sectors to make better decisions and take optimal action. And Intergeo is all about the means of acquiring and processing the necessary geo-information. This year marks the thirteenth consecutive running of this major conference and trade-fair for geo­desy, geoinformation and land management. The venue shifts from year to year, always within the boundaries of Germany. Last year the event took place in three halls at the New Munich Trade... (read more)
2007-09-19 12:00:00

Intergeo Preview 2011 (2)

Everyone who truly matters in the geomatics and surveying-related business will be travelling to Germany ¨C or more precisely to the Bavarian city of Nuremberg ¨C in the last week of September this year: Intergeo 2011 is being held in the Nuremberg exhibition centre (N¨¹rnbergMesse) from 27th to 29th September. The organisers are expecting some 17,500 visitors from more than 80 countries around the world to attend the trade show, while the associated conference is likely to welcome over 1,500 visitors ¨C and you will probably be among them! (Continued from Part 1 A - Joseph Attenberger)    Juniper Systems... (read more)
2011-09-21 04:24:30
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