DJT_MVSP
 Captain
Flight distance : 2018645 ft
Singapore
Offline
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Those flyaways could have been prevented if
1. Users knew how to fly in ATTI mode
2. They had calibrated the Compass in an interference free area
3. It had dual redundant IMU:
Two sets of sensors. Twice as reliable
Flight Control systems are critical to stable flight and they need data from different sensors on the drone to function. The Inertial Measurement Unit (IMU) and the compass are the most important ones, yet they are also the most vulnerable to interference. The IMU acquires the angle, speed, and acceleration, so if it functions abnormally, it could negatively affect flight. The compass is used to know where the drone is heading, ensuring it flies in the right direction, and allowing it to return to home automatically. Without the compass, it would lose its ability to navigate. This is why the Mavic and Phantom 4 series has dual IMUs and dual compasses.
Through DJI’s years of experience in drone development, and from extensive reliability tests DJI has found that propulsion systems and batteries are highly reliable while sensors, especially the IMU and the compass, are more slightly more susceptible to errors. This is why we have made these sensors redundant with two sets of sensors working simultaneously. Whenever the system detects an inconsistency in one, it switches to the other, keeping your flight steady and reliable. |
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