AERIAL SURVEYS
Helicopter and UAV
PRINCIPLE OF OPERATION
Central Alliance combine the latest advances in unmanned aerial vehicles (UAV) and helicopter-based systems with innovative uses of imaging equipment to perform a wide range of high quality mapping and aerial surveying techniques. Aerial surveys provide up-to-date high resolution imaging, filling in the gaps from other survey methods.
From the resulting data, we can provide you with precise geo-referenced data, stunning high resolution photography, smooth video footage and a range of high quality 3D deliverables.
LiDAR
Central Alliance owns and operates a helicopter pod and aerial mapping system with the capacity to undertake high-quality data capture over wide areas. The tailor-made pod can accommodate several sensors and cameras and is primarily used for the specialist aerial mapping LiDAR surveys, and Phase one camera imagery for photogrammetry. Typical applications include linear infrastructure and coastline surveys, large areas of interest such as landslides, and flood risk areas. The system can provide significant advantages over unmanned aerial vehicles, particularly for linear and larger sites.
With the helicopter pod, LiDAR, and photogrammetry, mass data can be acquired and processed to fill the gap in the airspace between UAVs and fixed wing airborne systems. This type of data cannot be acquired with the use of UAV’s, due to size and flying altitude, or fixed-wing airborne systems (aeroplanes) due to flying speed and point density.
Key Benefits
- Fully remote assessments of sites
- Significant benefits for geohazard identification, particularly when combined with other data sets such as digital elevation models and geological mapping
Possibilities Using LiDar systems
- Early identification of potentially problematic areas of high soil moisture that could affect critical infrastructure, construction sites and development
- Assessment of the impact of climate change on infrastructure resilience
- Identification of third-party impacts on a site
- Fully remote assessments of sites
- Wide area coverage that provides a snapshot of soil moisture and potential leaks at any given time
- Independent of weather conditions, day or night with a regular satellite revisit time
- Identifies water directly and not the effects of water
- Significant benefits for geohazard identification, particularly when combined with other data sets such as digital elevation models and geological mapping
Aerial systems are fast becoming the system of choice for:
- the mapping of large areas of land.
- production of high quality aerial photography of land, property and infrastructure.
- the inspection of land and extent of vegetation coverage
