Mavic Air 2 DJI UAV disassembly analysis

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After disassembling the DJI Mavic Air 2, it was found that the estimated cost of parts and components was US$135. The cost rate is only 20%, which is lower than 30–35% of smart phones. An executive of a Japanese company stated that “to achieve the same performance, the cost of materials for a Japanese company will be twice the price of the whole machine . It can be seen that low cost has become a source of competitiveness for DJI. They also found that many parts of Mavic Air 2 are also often found in smartphones and computers, and these parts account for 80% of the 230 parts used by Air2, including camera parts and smart parts that are used in high-end mobile phones. GPS receiver used by the watch.

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Strong technical strength

Of course it is not limited to low cost. As the subject of investigation, Mavic Air 2 can shoot 4K image quality when used for aerial photography, and also has functions such as automatic tracking and avoiding obstacles. In Japan, it can be controlled from a distance of up to 6 kilometers, and the distance of wireless transmission of images is about 5 times that of other companies’ products. In order to achieve a lighter weight of 570 grams, a design that resembles an electronic device is adopted. The size of the main substrate is approximately 10 cm x 4 cm, and 10 semiconductor components such as control and communication semiconductors and sensors are mounted on a single substrate in high density.

The software technology is also very strong. DJI continues to explore and constantly improve the software by actively launching new products. A Japanese drone developer praised, “Initially the flight control was immature, but after three years or so, it felt impressive.” The Japanese Patent Result survey, which is involved in patent analysis, shows that DJI has 185 valid patents in Japan (as of January 2019), which is more than three times the number two. This also confirms its high technical strength.

The chip that controls the propeller is the only proprietary component

Official Fomalhaut said: “The chip that controls the propeller is the only proprietary technology component.” In addition, the expensive components that cost more than $10 are limited to batteries, cameras and some other components. However, the editor believes that the technology that can perfectly integrate these parts and the design of humanized software control are the most valuable development costs.

American parts cannot be replaced temporarily

In addition to the above, this disassembly also shows that Mavic Air 2 uses many parts made in the United States. For example, the IC chip that controls the battery is made by Texas Instruments, and the IC chip that amplifies radio signals and eliminates noise is made by Qorvo. . These parts are considered to be difficult to find replacements. If they become a new target for the United States, DJI’s parts procurement may be affected.

According to Frost & Sullivan, a US research firm, the world commercial drone market will rapidly expand from USD 3.7 billion in 2018 to USD 103.7 billion by 2023, and China will account for half of it.

Mavic Air 2 main components description, Main IC on the front of the main control board

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1. Ambarella-H6-Image processor solution chip

2.SK Hynix-H9HCNNN8KUML-LPDDR4 memory chip

3.Samsung-KLMAG1JETD-Flash memory chip

4.DJI-S1- Information Synchronous Transmission Chip

5.TI-OPT3101-Obstacle avoidance sensor front-end module

Main IC on the back of the motherboard

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1. Active-Semi-ACT8846-power management chip

2.Imagination Technologies-IMG IE1000-Dual-band WIFI solution chip

GPS module motherboard front IC

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1. STMicroelectronics-Six-axis accelerometer and gyroscope chip

IC on the back of the GPS module motherboard

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1. ublox- M8030-KT-GNSS satellite positioning solution chip

2.iSentek- IST8310- electronic compass chip

IC on the back of the power supply motherboard

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1. Active-Semi- PAC5223- Flying Propeller Motor Driver Chip (4pcs)

2. ALPHA & OMEGA- AON7934- Asymmetric n-channel AlphaMOS chip (12 in total)

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