There are many stories about the design process of the P20. We have implemented a lot of gender- conscious ideas in it. For example, we have a four-rotor drone with a square arm that is not satisfied with obsessive-compulsive disorder .
Although we have chosen a four-rotor motor structure, our body is not a vertical layout that is common on the market, but an original tiled layout . This kind of layout helps us to quickly change the battery and the medicine box during the plant protection process, and improve the convenience of the medicine box, thereby improving work efficiency .
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In theory, the medicine box and battery filled with medicine are the heaviest part of the entire aircraft structure and need to be placed in the center of the entire frame structure .
Since the weight of the battery is constant, and the weight of the medicine box is decremented during the operation, the position of the medicine box is more centered than the battery, so as to ensure that it will not be in the medicine box. Decrease and cause the shift of the center of gravity .
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The center of gravity offset is very unfavorable for the drone . On the one hand, it will shorten the life of the motor , and on the other hand, the surplus of the motor used to overcome environmental changes will be insufficient, resulting in loss of control .
Just as a person is always walking on one side, one leg will be more tired than the other, and because the leg uses extra strength to force, the effort to cope with different road conditions is less. . Â
As mentioned earlier, our medicine box is a mad and cool "7-shaped" that requires a vertical plane that runs through the center of the body , so the intersection of the arms will make room for the drug delivery box. So we decided to move the intersection of the four motor diagonals forward, on the basis of maintaining balance, thus forming the difference between the length of the front and rear arms. Â
Regarding the small details of the design of the eccentric length of the P20 front and rear arms, do you think so carefully?
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