Our task was to photograph the shores of Lake Balaton. Two conditions were recorded - one during the vegetation period due to adequate transparency and one during the leafy period.
It was urgent to start the first lap, so that we could finish photographing the more than 230 km long coastline before the growing season.
The concept was to control and follow the drone from a car. We didn’t know what the coastal roads were like, so we couldn’t even predict exactly how many days the project would last.
The biggest problem was the battery life, as with a couple of batteries, the drone can perform a lateral motion and takephotos for approx. 20 minutes, or 6-9 kilometers.
The best solution proved to be the car tracking, i.e. while the drone was flying, we followed with one car, thus increasing the range. The driver drove the car and followed the drone, while the pilot, sitting in the mother’s seat, steered the drone and signaled in time if he had to get off to replace the battery.
DJI Matrice 210 drone
3 pairs of batteries
DJI Zenmuse Z30 camera and DJI Zenmuse X7 camera
car
pilot
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The aim of the project was to survey the areas on the shores of Lake Balaton. In the future, they want to bring the image of the shores of Lake Balaton to a uniform level. The pictures taken for beauty purposes are intended to illustrate the diversity of Lake Balaton and its surroundings.
We solved the battery problem by stopping charging at least once a day, but if possible twice. There were days when we worked with 3 pairs of batteries and there were when we worked with 6 pairs.
We used two cameras on the drone at the same time, both of which were controlled simultaneously. The DJI Zenmuse Z30 camera complemented the capabilities of our X7 camera well with its 30x optical zoom. The two cameras drained the batteries faster, but allowed more images to be taken.
X7 camera
Z30 kamera
As for the flight: we got to the reeds in the western basin! In these areas — thanks to the vast expanse of reeds and the roads far from the shore — it caused trouble, not to lose the signal and lose contact with the drone. Officially, the range can be up to 8 kilometers, but this is highly dependent on interference and area.
It is unbelievable how much new one can observe in a familiar countryside, it is enough to "bounce" off the ground only 100-200 meters. As we progressed with the project and spent more and more days on Lake Balaton, we could observe how the sea of Hungary shows a different face every day. On the successive shores we could meet different shades of blue. As we learned, due to the mild winter, more aquatic plants overwintered this year than usual. This is also the reason for the increasingly extreme algal blooms, which are behind the special blue color and pattern of Lake Balaton.
We came across an interesting phenomenon flying over Lake Balaton. The water of the Western Belt Canal seems to pollute the waters of Lake Balaton. Of course, this is out of the question, the water in the canal is peaty, harmless to humans and animals, and the fish especially like it, so go fishing!
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