Why did they choose handheld SLAM?

While static-based scanners are highly accurate, the survey team at Barberton Mines needed a quick and versatile solution for the variety of mining methods employed on the different mines and ore-bodies. The goal was simple; to accurately and safely capture data daily for ongoing analysis of the mining production. In addition, they needed a solution that could easily handle the rugged terrain and environment that mines are so often known for.

Barberton Mines chose to reassess their underground mapping technology to improve the speed and accuracy of their survey operations and increase productivity in the mines. 

How GeoSLAM fits in at Barberton Mines

Barberton Mines was the first mine in Sub-Saharan Africa to use GeoSLAM technology when they purchased a ZEB1 in 2014. The results and continued success on the mine prompted them to invest in 4 ZEB Revo’s in 2019, which are still in use today.

The ZEB Revo is lightweight and accurate, making it the perfect tool for surveying. The survey team can complete scans of the mines in half the time, and the process is repeatable. These capabilities have contributed to Barberton Mines streamlining their workflows, long-term cost savings, and greater returns on investment. 

The scanner’s ease-of-use only requires one person on-site to capture data. Furthermore, it doesn’t require professional training to use the equipment so operators can capture data in parts of the mine that surveyors cannot access for safety reasons. This casts a virtual eye on areas of the mine previously unseen by the surveyors and creates an opportunity to review old tunnels.

Finally, the lack of extensive training required to learn how to operate the scanner benefits new employees and the mine in general. It takes less than an hour to learn how to use the equipment and to process the final point cloud data, allowing surveyors to spend more time assessing final deliverables and finding ways to improve efficiencies in the mining process.

GeoSLAMs scanners have exceeded our expectations and have helped to achieve our goals where other mapping methods could not.”
– Thys Smith, Chief Surveyor at Barberton Mines

Solutions

Having originally invested in handheld scanners for underground mapping, Barberton Mines have since adopted the technology for other applications, further increasing their return on investment. The scanners are now operating across three key aspects of Barberton’s mining process.

The original and most common use for scanning is Production Progress Mapping. Barberton completes daily scans of the mines, bringing the data back for regular analysis of production progress mapping. 

The scanned areas are approximately 300 m3 and using GeoSLAM technology, they can scan large areas in about 10-15 minutes. In addition, because the scanners are handheld, production at the mine isn’t compromised by having to stop miners from doing their jobs while scanning is in process. 

Using the ZEBs, surveyors no longer need to be underground for extended periods, unlike previous methods. They begin their scans in a safe area, proceed to the mining faces, and finish back in the safe area while capturing the data needed – a completely repeatable and efficient process.

Barberton Mines has 5-6 stockpiles that make up 4000 cubic tons of material. They frequently measure the volume of these stockpiles, to ensure they have accurate and up-to-date information on their resources. 

Simply walking around the stockpiles with a scanner and importing the data into 3rd party software, provides the survey team with all the information they need to produce required reports. 

One example of where scanning has improved health and safety is the mapping of transport shafts. To comply with safety regulations, surveyors frequently scan the shafts to look for rock movement or deformation that might require further investigation. 

They found that scanning tunnels from the chairlift with a handheld scanner was quicker than previously used conventional methods, like Terrestrial Laser Scanning (TLS) or by hand. Handheld scanners only require the operator to ride the chairlift down- and back up again, without interfering with production.

The scanners are frequently used in these applications and their robust nature means they have never needed repair or maintenance.

Fast, efficient, and accurate data capture from GeoSLAMs handheld LiDAR scanners have proven to be a huge benefit for Barberton Mines. The repeatability of the scans has provided a great return on investment and the durability has meant that despite being used in challenging environments, the scanners have endured. The increased speed of data capture has led to safer work practices for the surveyors, and the walk-and-scan method has resulted in no disruption to the daily work of the mines.

With the scanner’s versatility, the survey team is still finding new applications where the technology can be utilised in the mining environment.

It is paramount for us to understand our client’s needs, especially in the ever-changing environment of mining. GeoSLAM provided the ultimate mapping solution that best addressed those needs, resulting in improved accuracy and overall productivity.”
– Gustav Fick, SME – Subject Matter Expert – UAV & 3D Scanning at OPTRON

To tackle these issues, the team decided to adopt LiDAR laser scanning technology to aid them in their projects and found GeoSLAM’s ZEB Revo to be the best option. By acquiring GeoSLAM’s technology, the Kansas Adjutant General’s Departments’ goal was to scan over half of their 2 million sq. ft. of interior space every year.

The ZEB Revo is handheld, accurate and fast, providing the team with a perfect tool. In addition, the simplicity and ease of use means only one team member needs to travel to a site, when necessary. Previous methods of data capture were not as quick or accurate. The ZEB Revo data capture leads to a faster return on projects, higher levels of accuracy, and a high return on investment.

By using the ZEB Revo, the Kansas Adjutant General’s Department have updated over 1 million sq. ft. of interior space, achieving their overall goal, with just one technician visiting half of the sites per year. The speed of capture of the ZEB means that the average time it takes the team to carry out a scan is just 20 minutes. By collecting accurate measurements, they can now regularly update their GIS database, which provides up to date floorplans throughout the state.

Data from the ZEB Revo is also used to create ‘X-Ray’ views of their properties for future plans and layouts.

Recently, they have expanded their use of handheld LiDAR technology by acquiring a ZEB Horizon, which they use for a variety of reasons. The increased range and data capture points make the ZEB Horizon a great option for large exterior scanning. This is important to the Adjutant General’s Department as they cover land of up to 50 acres.

The ZEB Horizon’s time saving, and accurate scans have proven to be a cost-effective method of data capture. For example, scans of underground empty oil storage tanks showed that the Kansas Adjutant General’s Department had been over estimating the tanks collection capacity, leading to an adjustment of the servicing contract.

Since The Kansas Adjutant General’s Department acquired GeoSLAM’s technology four years ago, they have carried out approximately 2000 scans, and this number continues to rise.

Further, the contractors and architects that create as-builts are now using The Kansas Adjutant General’s Department to quality check their work for accuracy. Using GeoSLAM laser scanners, they help find errors in specifications and relay that information to the contractors.

How ZIEN24 create Measurement Reports for Real Estate

Rotterdam based media and marketing company, ZIEN24, realised they needed to modernise how they measure properties in light of the regulations. ZIEN24 produces content and digital floorplans for estate agents, covering all types of residential and commercial properties.

The company began measuring properties using laser rangefinders, which were not only time-consuming but also not cost-effective. The company received complaints when properties were not measured within the limits of the regulation, and the team had to occasionally return to properties to re-measure them. In addition, ZIEN24 was sending both photographers and surveyors to properties, which was not cost-effective or ideal for their clients.

Having worked with point clouds previously, ZIEN24s co-owner, Boy Van Houten, thought that they could be the solution for accuracy. However, they needed a setup that was quick and effective, so static-based systems were not an option. After researching different scanner options, they decided to try GeoSLAM’s ZEB Revo RT with the ZEB Pano accessory.

Why ZIEN24 chose to work with the ZEB Revo RT

The ZEB Revo RT is highly accurate, fast, and easy to use. As it requires minimal training, ZIEN24 taught their photographers to scan properties when they’re on location taking marketing photos. This negated the need for a surveyor, saving ZIEN24 money which could be passed on to their clients. The scanners accuracy largely removes the risk of human error, and ZIEN24 have not received any complaints since starting to use GeoSLAM scanners back in 2019.

The addition of the ZEB Pano allows them to take informative 360 degree panoramic photography, at a much quicker pace, during a scan. The ZEB Pano stores the exact location of each panoramic image within the scan, enabling more accurate and less intrusive property surveys. This is vital for ZIEN24, as the popularity of virtual house tours increases within the real estate industry.

The GeoSLAM scanner not only gives us confidence in the end product but gives our clients peace of mind knowing that our fully-automated measurements are highly accurate.

How the ZEB Revo RT has helped ZIEN24 with their Real Estate services

As the scanner captures in real-time, the photographers can easily ensure that they are capturing every room, as they walk around. Furthermore, the speed of capture, 200m2 in 15 minutes, means that more properties can be assigned to photographers per day. The data is then processed in their offices in China, and accurate floorplan reports are typically turned around within 24 hours.

The ZEB Revo RT has also helped them to expand into other markets, and they now offer scanning services to support BIM models.