Integrated GNSS/MEMS INS

OLinkStar has announced an integrated GNSS/MEMS Inertial Navigation System (INS) system, PNS100BGI. The system integrates GPS/ Compass /GLONASS, MEMS IMU, magnetometer, and barometer to deliver a reliable 3D navigation solution. PNS100 tightly couples GNSS positioning and inertial navigation technologies to provide an accurate, continuous, smooth and reliable position, velocity and attitude solution in three dimensions. A 32 channels GPS/Compass/GLONASS receiver, powered by the OlinkStar's OTrack32 chip technology, and a 6-DOF MEMS inertial measurement unit (IMU) including gyros and accelerometers, integrated within a single enclosure, comprises the system's accuracy and availability, even during periods of degraded, multipath, or no satellite signal... (read more)
2010-11-05 12:00:00

Secrets Down Under Down Under

Beneath the surface of this tropical paradise in the city of Townsville on Australia's Sunshine Coast lies a still hidden maze of tunnels and underground bunkers, said once to have been used by General Douglas MacArthur. Learning the secrets of this labyrinth that was a major WWII staging point for battles in the South West Pacific is the passion of Kevin Parkes, of Geo Positioning Services, a local Ashtech dealer.   Parkes main tool is historic aerial photography, coupled with hours of research in the National Australian Archives and the National Library of Australia. To that he adds geophysical surveys... (read more)
2011-07-25 10:10:23

Multi-sensor Cave Detection in Bulgaria

Meeting the Challenges of Complex Karst Environments
Caves are important in a wide variety of fields, ranging from construction engineering to mineral exploration and archaeology. Despite the scientific importance of caves, geologists believe that only a relatively small number of them have been discovered so far. Exploration is currently mainly conducted by speleologists but this is a time-consuming activity and is limited to exploration based on existing surface openings. A recent project in Bulgaria has shown that the combination of multiple geophysical techniques provides an easier and effective on-surface exploration method that meets the challenges of complex karst environments. (By Tanya Slavova and Atanas Rusev, Bulgaria) Several... (read more)
2016-04-21 10:57:18

Low-cost Feature-rich RTK Receiver

SkyTraq Technology, a Taiwanese GNSS positioning technology company, has introduced S2525F8-RTK, a low-cost, low-power, single-frequency RTK receiver for applications requiring centimetre-level accuracy positioning. The multi-constellation GNSS RTK receiver can use 12 GPS, eight SBAS and six BDS signals and one QZSS signal. In situations where RTK fix is not possible, a Float RTK mode can be used for decimetre-level accuracy positioning. A moving-base mode is also supported for precise heading GPS compass application. Its 25mm x 25mm form factor, 3 gram weight and 250mW power consumption makes it ideal for any outdoor mobile applications requiring high-precision RTK positioning. S2525F8-RTK supports both base station and... (read more)
2016-03-29 03:13:36

Three Dimensional Query

Threat Dome Visibility for Smartphones
GPS receivers, digital compasses (magnetometers) and tilt sensors (accelerometers) are increasingly implemented in state-of-the-art smartphones such as the iPhone and various Android Phones. The resulting data on location, azimuth, and declination angles, together with images from inbuilt cameras, enable creation of a photorealistic and geometrically accurate city model. In turn, the newly created 3D scene can be queried wirelessly while moving through an urban environment. The authors developed a prototype - Three Dimensional Query (3DQ) - which tailors 3D visibility analysis to mobile devices based on a military-style threat dome computation.  Figure 1, Threat-dome query shape interacting with 3D geo-datasets.The... (read more)
2010-07-30 03:52:40


"We are Well, in the Shelter, the 33 of us"
The above message from the Chilian miners must now be one of the famous ever to have been scribbled on a scrap of paper. It flew around the world as news spread of the rescue bid to bring the men, trapped underground since 5th August, to the surface. The mission was accomplished on 13th October, amid scenes of general rejoicing shared around the world.The note had been tied to a perforation drill used by rescuers to bore through to an area near an underground shelter where the miners took refuge after the collapse that occurred in a gold-and-copper mine in... (read more)
2010-11-04 03:38:06

Cost-effective and Accurate Indoor Locator System

Cambridge Consultants, a British developer of innovative products, has announced a new technology that can accurately detect someone’s location indoors when GPS drops out. A number of sensors and a custom algorithm determine the location, with an accuracy of within approximately 1% of the distance travelled. The technology uses low-power, low-cost sensors and the device concept is small enough to clip onto a belt. Furthermore, it requires no existing internal infrastructure. The technology opens up countless possibilities and is expected to have an impact in many different situations, according to Geoff Smithson, technology director, sensing systems, at Cambridge Consultants. It... (read more)
2013-03-15 09:43:00

Using Magnetic Field Improves Oil Production

By using the Earth’s magnetic field, combined with new innovative technology, oil and gas drilling companies are increasing oilfield productivity while reducing development costs and environmental impacts. An article in the autumn 2013 issue of Oilfield Review highlights this technology and its applications across the world. It also discusses the collaboration between the public body, U.S. Geological Survey, and commercial partners to successfully implement the technology. These days, multiple reservoirs of oil and gas can be accessed from a single platform by drilling vertically and then horizontally. Drill operators need to know which way their drill bits are going to... (read more)
2013-12-20 08:30:00

New Miniature INS Module with External GNSS Receiver

Xsens has expanded its MTi product portfolio by introducing the MTi-7, a miniature inertial navigation system (INS) module which uses input from an external global navigation satellite system (GNSS) receiver to provide an accurate, real-time position, velocity and orientation data stream. The MTi-7 module, which has a compact 12 mm x 12 mm footprint and weighs less than 1 gram, consumes under 100 mW, making it ideal for use in space- and power-constrained devices such as Unmanned Aerial Vehicles (UAVs), as well as autonomous or remote-controlled mapping and imaging equipment. Autonomous ground vehicles  Operating at output data rates up to... (read more)
2018-04-18 10:38:43

The Smartphone as a Professional Mapping Tool

To what extent will the smartphone become a professional mapping tool? Modern smartphones already contain many of the important functions to be used as mapping tools. However, whether they are suitable for use as such professionally depends not only on the built-in sensors, but also on the available computing power, RAM and data storage capacity. For data acquisition, a smartphone usually has two to three cameras, a GNSS sensor, an acceleration sensor and a gyroscope for positioning the system in 3D space. In addition, a smartphone has a magnetometer which displays the orientation or north direction by a compass, and... (read more)
2020-02-05 03:54:54
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