LIDAR DATA CAPTURE
ROAD
RAIL
WATER
UAV
AIR
APPLICATIONS
ROADING
Highway feature survey
Road surface analysis
Tunnel inspections
Structure clearance analysis
Infrastructure asset capture
UTILITIES
Minimise the requirement for engineer inspections. Attributes measured include:
Pole location, material, height, lean and lean direction
Cross arm dimensions, height above ground and orientations
Type of attachments
Stay line orientation and type
Number of lines attached to each cross arm
Line sag, span distance and ground clearance
RAIL
Detailed existing and as-built surveys of the rail corridor
Accurate corridor encroachment analysis
Asset capture
Rail tunnel survey
Embankment and slope monitoring
Flood and drainage modelling
ASSET MAPPING
Highly detailed 3D representation
Data assets easily integrated into an asset database
Extraction of attribute information
On a street lighting project, for example, we can include attributes such as:
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Pole coordinates, type, material, height, diameter and width
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Bracket type, angle, orientation, outreach and height
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Lamp coordinates and height
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Attachments on the pole
Geo-referenced images can be provided for multi-aspect high resolution imagery.
SLOPE & EROSION MONITORING
Assess slope stability, erosion rate and volume of erosion with periodic data capture
Open cast mining and quarries
Calculate volume of material extracted
Stockpile volumes safely and efficiently captured
CLEARANCE ANALYSIS
For vegetation encroachment analysis we use waveform scanning to penetrate beyond the first layer of vegetation giving the most complete data capture on both the vegetation and an object which may be hidden within the vegetation, such as a power line.
Corridor Clearance Analysis
Oversized Load Route Analysis
OTHER APPLICATIONS
Change detection
3D modelling
Visualisation & simulation
Line of sight analysis
Road safety analysis
DELIVERABLES
Our mobile laser scanning capture produces geo-corrected point cloud and geo-referenced photos. These feature rich data sets are full of potential information which can be extracted to produce and wide range of client deliverables.
Our in-house capabilities extend across a wide range of applications. Here are examples of some of the more common deliverables we produce
Point Cloud
EQUIPMENT
Equipment alone is not the determining factor when it comes to our success on mobile LiDAR projects. Our highly developed processing workflows, software knowledge and practical experience ultimately ensures our success. That said we only use premium equipment which is an excellent foundation for the deliverables we derive from the data.
Point Geodata operate the Robin Precision and Riegl VMQ-1HA mobile LiDAR scanning systems. Both systems are high-end in terms of the data they produce, with the Riegl having additional sensors to improve absolute accuracy. We select the most appropriate equipment after careful consideration, ensuring we can meet project specification, accuracy and deliverables.
Both systems use the industry leading Riegl VUX1-HA LiDAR sensor. It provides a feature rich 360° point cloud with a precision of 3mm.
The Robin Precision offers single frame 12MP rear facing geo-referenced photos. The Riegl VMQ-1HA offers 30MP spherical photos. Both camera systems allow for the RGB colouring of the laser point cloud.
Both have the capability to rotate the LiDAR sensor through 90°. We capture in multiple scanner orientations to minimise data shadowing and obtain a more complete dataset.
The difference between a good mobile LiDAR system and a great mobile LiDAR system is how they perform when the GNSS satellites are compromised by the environment you capture in. The graphic below compares the GNSS environments we operate each system in when we need to achieve high absolute accuracy (±20mm XYZ).
If the project allows, we use the ROBIN Precision which can be operated at more competitive rates. When a project demands the highest accuracy we use the Riegl VMQ-1HA.
