DJI Mavic

DJI Mavic

The DJI Mavic Pro is a small yet powerful drone that turns the sky into your creative canvas easily and without worry, helping you make every moment an aerial moment. Its compact size hides a high degree of complexity that makes it one of DJI’s most sophisticated flying cameras ever.

24 high-performance computing cores, an all-new transmission system with a 4.3mi (7km) range, 5 vision sensors, and a 4K camera stabilized by a 3-axis mechanical gimbal, are at your command with just a push of your thumb or a tap of your finger.

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Fly further

Inside the Mavic’s pocket-sized remote controller is DJI’s brand new OcuSync transmission technology, with a range of 4.3mi (7km) and Full HD 1080p video streaming. Wi-Fi video transmission technology was not suitable for the DJI Mavic, and the new OcuSync system was selected instead. and uses the brand new OcuSync instead. This new member of the Lightbridge family performs far better than Wi-Fi and other transmission systems, no matter at what speed the radio wave travels. OcuSync also uses a more effective digital compression technology and channel transmission technology, allowing it to transmit HD video reliably even in environment environments with strong radio interference.

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Compared to the traditional Analog Transmission, OcuSync can transmit video at 720p and 1080p, equal to an image quality increase of 4-10 times without color casts, static interference, flickering or other problems associate with analog transmission. Even when using the same amount of radio transmission power, OcuSync’s transmission distance is further than analog at 4.1mi (7km). OcuSync goes even further than optimizing the communication mechanism and parameters aerial imaging. There are several video transmission systems on the market claiming to offer video transmission with zero latency, but it should be noted that the physical layer of those transmission systems is too simple to adapt to changes in the environment. When affected by signal interference, the image quality of the video being transmitted will fall sharply.

This means these systems are not suitable for far field transmission and transmission in interference heavy environments. Also, because these video transmission systems are not integrated into the whole system, latency will immediately start to rise up from 0 when working with devices including cameras and displays. OcuSync is able to strike a perfect balance between latency and receptivity. By reducing latency to 5ms for remote controller transmission commands, 10ms for video data and 130ms for videos. More than enough to ensure that Mavic is able to fly reliably despite interference. OcuSync’s integration with video processing and coding, signal transmission systems also make it more cost effective. Before taking off, OcuSync will automatically scan the environment and choose the frequency band with the lowest interference, ensuring more stable video transmission.

During flight it sends key flight parameters back for viewing in the DJI GO app, and supports a maximum download speed of 40Mb/s for photos and videos. As well as point-to-point video transmission, OcuSync also supports wireless connections to multiple devices. For example, you can connect the DJI Goggles, remote controller and Mavic wirelessly to OcuSync at the same time. You can also add an additional remote, so that you can control the Mavic with two remotes or share FPV videos.

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No bumps and scrapes

An unprotected drone could hit obstacles during long distance flight or when descending from an inadequate height in Return to Home mode. The DJI Mavic uses FlightAutonomy technology to sense obstacles up to 49ft (15m) away. It can then bypass these obstacles or brake to hover, preventing accidents even when flying beyond visual range.

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Precision Hover

Satellite positioning can only help a drone hover in an unobstructed outdoor area free of interference. Without satellites, the drone will not be able to position and become susceptible to drifting. However, with forward and downward vision sensors, the DJI Mavic can hover precisely indoors or in places without GPS. Situations without satellite positioning can be divided into two kinds. First, satellite connectivity may be unavailable during indoor flying. Second, satellite connectivity is cut off during an outdoor flight, such as by flying under a balcony or flying from indoors to outdoors. The loss of satellite positioning makes these scenarios dangerous for new pilots or those who want to long distances*. If the drone wants to position using satellites, its flight controller needs to gain both the current location and flight speed of the aircraft. However, if the drone needs to position accurately without GPS, flight status still need to be collected. Many drones are equipped with what is known as an Optical Flow visual positioning system consisting of dual ultrasonic sensors and a single camera.

The ultrasonic sensors provide altitude information by measuring the distance between the aircraft and the landing point, while the single camera is used to calculate positioning information by capturing images below the aircraft. As ultrasonic sensors are the only measure of height, the higher the aircraft flies the less precise the data from reflected sound waves become. Accurate height positioning is therefore limited to less than 3 meters. The single camera is unable to improve height positiong accuracy and limits areas that the drone can hover stably to those that have a clear texture.

The DJI Mavic overcomes these problems through the use of dual forward vision sensors. This setup allows the DJI Mavic to see obstacles in 3-dimensions up to 15 meters in front, increasing positioning accuracy to 2-3 times that of an Optical Flow system. It also allows the speed of the aircraft to be calculated, enabling precise hovering at up to 10 meters without satellite positioning. Dual forward vision sensors allow it to calculate its current location and speed of flight by observing the scene in front, further increasing positioning accuracy. Thanks to the precise hovering technology, the DJI Mavic is able to automatically land almost exactly where you took off. Every time you take off, the two downward facing vision sensors record a burst of video of the ground below and pair it with satellite coordinates. When you tell the DJI Mavic to fly home, it will return to that coordinate, match the video, and land back at your feet. *Line of sight flight is required in most countries.

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Stay flying longer

The DJI Mavic is only 1/6th the size of the Phantom 4 but this reduction in size doesn’t mean a reduction in flight time. The Mavic actually flies much longer than you would expect from its compact size. It is capable of reaching an absolute max flight time of 27 minutes and a maximum distance of 8mi (13km) due to its powerful, high efficiency motors. When designing the Mavic, we wanted to reduce its size without sacrificing flight time. Since the DJI Mavic has a brand new 4.1mi (7km) FHD video transmission system, we knew customers would want more flight time and speed to enjoy their flying. This is why the Mavic can fly for up to 27 minutes and reach speeds of 40mph (64kph). Because the Mavic is much smaller than the Phantom 4, it requires an even more efficient propulsion system.

The efficiency of the Mavic’s propulsion system allows it to fly more than twice the 10 minutes that other folding or pocket sized drones on the market are capable of. Its propulsion system is also more stable than smaller drones that do not have the power to fly in strong wind. The flight time of a drone is heavily depending on its propulsion system and its overall power consumption.

Since DJI Mavic is smaller, the expectation is that it is less stable than a Phantom 4 when flying against wind, but the Mavic’s airframe and propulsion system have been optimized to allow it to rival the Phantom 4 in its flight performance.

1. An aerodynamic design in the front and rear of the DJI Mavic and its polished surfaces reduce air resistance as it flies forwards.
2. Mavic has 2 pairs of 8.3 inch foldable propellers with each covering nearly half the length of the aircraft, comparing to most foldable drones in the market, whose propeller is only 1/4 of the length of the drone. It’s mainly benefit from the great design by folding two forearms on the two rear arms, greatly save space when Mavic is fully folded up.
3. The aerodynamic configuration of the Mavic has been redesigned to according to its flying attitude and angle when flying forward. We also optimized the propellers’ aerodynamic efficiency, so that the DJI Mavic can fly for longer.
4. High density lithium batteries reduce space required for batteries yet provide the same amount of power. The battery compartment is deeply integrated inside the Mavic and guarantees structural strength.
5. An improved propulsion system ensures the Mavic ascends and accelerates faster. Combined with a fast responding, highly robustness flight controller, it is able to handle strong winds while flying. *Duration of the battery is recorded in ideal flight situation, subject to real flying environment and conditions.

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4K Ultra HD Video

DJI Mavic supports 4K video at 30fps. No Electronic Image Stabilization is used, ensuring all footage is 4K. We have created a miniaturized, ultra-precise 3-axis gimbal for the Mavic, capable of stabilizing the camera even during high speed motion for smooth video and sharp photos. Electronic Image Stabilization (EIS) is a shake reduction technology based on image clipping. It is particularly popular among compact and small drones, since the can be much lighter without 3-axis gimbal. EIS works by clipping edges from a 4K image, and can theoretically create a smooth full HD 1080p video from an original 4K video. However, EIS is unable to completely eliminate shaking, and introduces ripples in both photos and videos. In drones, EIS has three main problems:

1. EIS systems cannot shoot 4K or high framerate video because clipping is necessary to reduce shake and the amount of clipping will vary depending on the amount of movement. As 4K is currently the highest definition available for most cameras, 4K, or even 2.7K video cannot be shot while using EIS. Additionally, as it takes time to process the clipping, recording video at high framerates is not possible, resulting in only 1080p video at 30fps.
2. Shooting perspectives cannot be controlled precisely. Without a gimbal, drones are forced to use a fisheye lens to allow shooting angle changes, but changing the angle only uses part of the camera view, negatively affecting the shooting experience.
3. Black edges may be introduced in the video in flight during a severe maneuver. This occurs because the EIS technology clip beyond the edge of the video in an effort to keep the image stable.

To provide true 4K aerial video and a smooth live feed, the DJI Mavic Pro is equipped with the smallest high-precision 3-axis gimbal that DJI has ever made. With brushless motors on all three axes, the gimbal can control the camera with precision, adjusting it to eliminate shake caused by the movements of the Mavic. This 4K camera uses core technologies found in all DJI cameras. It is equipped with a 1/2.3 inch CMOS image sensor, commonly found in professional sport cameras, and an aerial imaging optimized integrated lens with an equivalent focal length of 28mm. this allows the camera to provide smooth 4K video at 30fps, 1080P video at 96fps and 12 megapixel photos.

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Two sets of sensors. Twice as reliable

On a drone, the most likely source of a problem is a sensor not working exactly as it should. This is why the Mavic has two of each key sensor. If one goes wrong, the other kicks in to take its place. Flight Control systems critical to stable flight and they need data from different sensors on the Mavic to function. The IMU and the compass are the most important ones, yet they are the most vulnerable to interference.

The IMU acquires the angle, speed and acceleration of Mavic, 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, the Mavic would lose its ability to navigate. This is why the Mavic has dual IMUs and dual compasses. Stability is key to safe flight:

1. Stability of the propulsion system: Only when motors and propellers are intact and normal and the battery is sufficiently charged will the Mavic fly.
2. Stability of flight attitude: Flight attitude is controlled by the Flight Controller. Any errors in attitude could have serious consequences including crashes.
3. Stability of sensors: Flight attitude is calculated from the data of an array of sensors. Any errors from the sensors could have serious consequences including crashes.

Through DJI’s years of experience in drone development, and from extensive reliability tests DJI has found that the propulsion system and batteries are highly reliable while sensors, especially the IMU and the compass are prone to errors. This is why the Mavic has 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. In flight, the Mavic uses its compass to tell it where it is heading and the Inertial Measurement Unit (IMU) to tell it how it is flying. An interruption in the data flow from either of these may cause it to fly less reliably, which is why the Mavic has not one, but two of each. Whenever the system detects an inconsistency in one, it switches to the other, keeping your flight steady and reliable.

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Level headed

Stay at the same level height above the ground automatically. Don’t worry about flying too low, the Mavic will keep you at just the right height over uneven terrain. When you are flying over changing terrain, like following bikers riding uphill, the Mavic’s Terrain Follow function uses height information gathered by the onboard ultrasonic system, and its downward facing cameras to keep you flying at the same height above the ground even as the ground moves. Just set the height from the ground you want — from 9ft (0.3m) to 33ft (10m) — and focus on getting the right shot.

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Safer, smarter batteries

The Mavic’s Intelligent Flight Batteries give it a flight time of up to 27 minutes, allowing you to check battery level and status in real-time during flight through the DJI GO app. It also calculates remaining flight time, helping pilots fly more safely. Electric vehicles use Battery Management Systems (BMS) to ensure battery performance, and LiPo batteries used in drones need BMS to function at their best. Most drones on market today do not use intelligent batteries. Instead, they calculate battery level and even battery status through monitoring voltage and current. The problem is that remaining power in a LiPo battery is also reliant on battery temperature, the number of time the battery has been used, discharging performance and more, so it cannot be accurately gauged with just voltage and current data.

DJI began using Intelligent Flight Batteries in the Phantom 2, with BMS applied to LiPo batteries to accurately calculate battery level, working status and to send battery status information to the Flight Controller. The DJI Intelligent Flight Battery in the Mavic adopts the latest technologies to ensuring the flight control system is able to obtain accurate battery level. This allows it to calculate remaining flight times more accurately. It also gives pilots a full understanding of the overall battery status, including real time battery cell status, circle number, temperature and more, all in the DJI GO app. As well as monitoring the battery status during flight, the BMS also has overcharge and over discharge protection, reducing the likelihood of battery damage.

When not in use for extended periods of time, the DJI Intelligent Flight Battery automatically discharge to 50% charge, keeping it the optimum charge for an extended battery life. If flying in cold areas, the BMS will activate low temperature protection, controlling power output according to the temperature. This ensure the battery can provide adequate propulsion without damage from the cold.

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Fly by phone

Maybe all you want to do is grab a quick dronie, set up tracking to shoot a friend, or even just head skywards for a quick flight. All you need is your phone. Sometimes a phone is all you need to fly. Not only does the Mavic support flying on your phone with Virtual Joysticks, but you also have full access to all of its Intelligent Flight Modes — TapFly, Trace, Spotlight, Profile and Circle. Using just your phone, you can capture photos and video so incredible, that no one will believe you did it by tapping a screen!

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TapFly

Beginner pilots often have trouble flying in a straight line because they aren’t familiar with joysticks, which then makes shooting video more difficult. TapFly means you can just tap where you want to go and the Mavic will fly smoothly in that direction so you can focus on controlling the gimbal and capturing photos and video. Flying really can be that easy. With intelligent vision technology, Mavic is very smart. Tap a point on the screen, Mavic will fly towards that point directly; if you tap another point, it will smoothly turn to the new destination. In TapFly, Mavic’s onboard obstacle sensing systems are constantly scanning in front of it, keeping it away from any obstructions, freeing you up to admire the view.

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At your command

The Mavic acts on your every instruction almost instantly. Whether you want to shoot a slow, graceful flowing shot, or get your blood pumping with the 40mph (65kph) Sport Mode. The slightest movement of your fingers on the Mavic’s control sticks is translated almost immediately into movement in the air, so you know instantly that you are in complete control. Its powerful motors and expertly optimized propellers, provide more power than you would expect for its size, making it able to fly smoothly in up to 24mph (38.5kph) winds. Sport Mode was designed for fun, giving the Mavic a top speed of 40mph (65kph), all the while ramping up agility and responsiveness, to give you a taste of drone racing. You can also use it to film something fast, or zip out to catch a shot before the moment passes. Even in Sport Mode, the Mavic will stop instantly if you let go of the controls, so no matter how fast you go, you can stop at any time.

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Finely tuned control

If you are lining up a photo, or even flying indoors, you don’t want to fly quite so fast. Flip on Tripod Mode and every move the Mavic makes becomes precise and slow. Tripod Mode drops the Mavic’s maximum speed to just 2.2mph (3.6kph), and the control stick sensitivity of the remote controller is dulled to give you the precision you need for accurate framing. It is also great for flying indoors in small spaces where the Mavic’s normal speed may make it more challenging to fly.

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See the world like a bird

Fly with a turn of your head and see the world from the eyes of a bird when you wear the super high quality wireless DJI Goggles. DJI Goggles makes flying totally immersive, putting two lifelike 1920 × 1080p LTPS displays with a wide 85° angle of view in front of your eyes for a true bird’s eye look at the world around you. Built-in OcuSync delivers a 1080p video stream and, because it connects directly to the Mavic and not through a cable or a Wi-Fi link to the controller, a super low latency.

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