FoV 75° accuracy 5mm@50m range 1500m PM-1500 2000kHz airborne LiDAR
system for coastal zone sedimentation monitoring
Coastal zone is a special area of sea land interaction. Under the
background of global sea level rise, coastal zone erosion disaster
has seriously threatened the survival and living environment of
coastal zone. The coastal zone is rich in tidal energy, wave
energy, wind energy and other energy resources. At the same time,
there are also sudden natural disasters such as storm surge and
typhoon, as well as slow disasters such as coastal erosion,
seawater intrusion, land subsidence, sea surface rise, sediment
deposition in estuaries and ports. Due to the uncertainty,
abruptness and severity of the surrounding environment of the
coastal zone, it is very difficult to use traditional means to
monitor, especially the large-scale sedimentation monitoring of the
coastal zone. Airborne LiDAR system can efficiently obtain a large
area of topographic data. Through the comparison and analysis of
multi-stage data, it can monitor a wide range of coastal
sedimentation.
Taking Fenghu VTOL UAV as the carrier, PM-1500 airborne LiDAR
system can obtain the laser point cloud data of the coastal zone to
be monitored in different periods. Through the pre-procesing of
point cloud like denoising and thinning, the multi temporal terrain
data of the monitoring area is generated by interpolation.
Comparison of the topographic data of different phases can
objectively analyze and evaluate the sedimentation of a wide range
of coastal zone.
Advantages
1. The overall structure of PM-1500 airborne laser measurement
system has been innovatively optimized. It highly integrates
sensors such as laser scanner, GPS, IMU and aerial survey camera,
etc.
2. The system is lightweight and easy to install. It is suitable
for multi platforms such as VTOL fixed wing UAV, multi rotor UAV
and helicopter.
3. With the 1500m ultra long range, it is easy to process of high
drop terrain data, and can greatly improve the operation
efficiency.
4. The ranging accuracy of PM-1500 airborne LiDAR system can reach
5mm@50m, and the comprehensive accuracy of the system is better
than 5cm, meeting various high-precision application scenarios.
5. With 2M points/s high frequency, the system has ultra high point
density, it is capable for complex operations and suitable for
electric
power/forestry/modeling and other scenarios.
6. Applied with 4 times multi-echo technology, the laser can
penetrate the surface vegetation gap, and feedback the real terrain
distribution.
Parameters
Items | Indicators | Parameters |
| Laser Scanner | Wave Band | Near Infrared (Class 1 ) |
| PRR | 100-2000kHz |
| Maximum Measurement Range | 1000m@20% |
| 1500m@60% |
| Range Accuracy | 5mm@50m |
| Angular Resolution | 0.001° |
| Scan Speed | 40-400 scans/s |
| FoV | 75° |
| Camera | Camera Resolution | 42.4MP |
| Focal Length | 28mm |
| POS System | Position Accuracy(post-processing) | Horizontal 0.01m |
| Elevation 0.02m |
| Orientation Accuracy(post-processing) | Heading 0.009° |
| Pitch/Roll 0.005° |
| System Performance | Dimension | 293×165×164mm |
| Absolute Accuracy | horizontal <5cm |
| vertical <5cm |
| Weight | 4.4kg |
| Multi Echo | 4 times |
| Temperature and Humidity | Operation: -40℃~60℃, Humidity 85% |
| Storage: -45℃~70℃, Humidity 85% |
