To higher performance
Built-in high-performance INS with further improved measurement accuracy and resolution
INS (inertial navigation system), which determines the accuracy, is further upgraded.
GNSS can receive the position data from satellites only a few to dozens of times per second.
Therefore, even with a high performance GNSS receiver, a high performance INS that calculates gyro and acceleration is essential to obtain a detailed and accurate flight trajectory.
Please be sure to feel the performance of TDOT 3 that fully integrates the latest high-performance devices.
Range of 45° right and left from directly below the drone where the accuracy of altitude is stabilized
TDOT is designed specifically for surveying.
The concept of TDOT is to acquire the required data efficiently and with high accuracy.
TDOT is designed to intensively scan the ±45° area from directly below the drone.
In the range, the accuracy of the altitude value is stable because it is less affected by the drone’s posture.
On the other hand, the further away from this range, the more unstable the elevation becomes due to the drone’s attitude.
For surveying with drones, we believe that this is the best choice as the scanning range can be limited to ±45° from directly below, which simplifies the mechanism and reduces the weight of the scanner.
Beam diameter of 1.0mrad suitable for laser surveying
Many inexpensive systems are converted from laser scanners developed to be installed in cars.
However, since the purpose of them is to ensure the detection of nearby obstacles, the beam diameter is wide and the accuracy for the irradiation distance is not important in their design.
If the beam diameter is too wide, the areas where the laser beam is irradiating will be vague and the accuracy of the data will be impaired.
TDOT is a scanner system designed for surveying with drones from scratch.
With a beam diameter of 1.0mrad (10cm spread angle at 100m ahead), the scanner system is suitable for laser surveying that accurately captures the survey target and can pass through gaps in trees easily.