Introduction to aerial photography

Aerial photography is also known as aerial photography or aerial photography. In recent years, with the continuous development of television programs, the advantages of aerial photography with drones have become more and more prominent - for one thing, drones can be in the air by remote control any lift to achieve the effect of picture framing content rich. Second, drone aerial photography is convenient to move, long-distance action live, fast, the direction can change and other advantages, in the live equipment has a unique advantage. Third, aerial footage with its special perspective brings the audience a new picture, a different visual enjoyment, improves the visibility of television programs, while bringing television filming to a new stage. This series of features make drone filming in television programs more and more colorful.

DJI drone comes with camera belongs to DJI independent research aerial photography system, DJI PHANTOM3S has movie 2.7K video resolution and 12 megapixel still resolution, no distortion change mirror, in addition to the often worrying sending end of the map transmission needs to be installed on the drone body, not only to consider whether the drone can support this extra weight, but also to consider the sending end in flight The receiving end of the map transmission is on the ground, and it is necessary to consider the compatibility of the receiving end interface with the interface of traditional broadcasting equipment such as switching stations - DJI PHANTOM3S has a built-in WI-FI repeater, which can transmit 720P HD images within one kilometer to mobile devices in real time, and can also adjust the flight according to real-time pictures. And the remote control has a richer figure transmission out module interface, which basically can achieve compatibility with traditional equipment.

Implementation of live drone solution

Elf 3 standard version of live drone

Although it is not a real sense of live aerial photography, there are still places worth considering and learning from for large-scale live programs. First, the quality of aerial footage is guaranteed, the parameters of the picture basically reach the best performance of the drone lens, avoiding the possible blurring, lagging, mosaic and even signal loss of wireless real-time image transmission. Secondly, the aerial footage can also be updated and replaced, to a certain extent, to achieve the effect of live broadcast, and even in some cases, through editing, a section of aerial footage with a good sense of camera images and a long duration can be used as a gasket for the live signal of the outfield.

Henan TV channel has used the program to realize large-scale live outfield activities such as "Face to Face with High Tricks" and "Tianmen Mountain Steel Cable Challenge".

Live wireless map transmission of Elf 3 Professional, 4K version, Goh and M600

The dual remote control mechanism of DJI's Goh series drones as well as the M600 flight platform was originally designed to improve the level and quality of drone aerial photography. In the dual remote control mechanism, the two remotes are identical at the hardware level, and are divided into primary and secondary controls in the software settings. The main control controls the movement of the body, and the secondary control controls the gimbal camera movement, and the two drone operators work together to achieve a more detailed aerial photography effect. The configuration of the dual remote controls can be fine-tuned when designing the live program, with one drone operator using the master control, and the master control's map signal output needing no access to the switchboard, so this also eliminates the limitations of the actual location. The other UAV operator uses the secondary control, which can be placed near the switchboard. Since the secondary control is mainly responsible for the gimbal camera action and does not need to care about the flight of the UAV, the output module of the secondary remote control can enter the switchboard without considering the signal attenuation.

M600 flight platform wireless map transmission embedded audio live

1. The live picture transmission of M600 flight platform selects the SDI signal of the master control output module as the SDI input of DATA VIDEO DAC-70

2. If using wired microphone, its output is Canon interface, which is suitable for BlackMagic VideoAssist 4K hard disk recorder for embedding. The Canon port is used as the analog audio input of BlackMagic VideoAssist 4K via audio cable (and 48V phantom power is provided.) The SDI signal of the master output module is selected by the real-time graphics of the M600 flight platform as the SDI input of BlackMagic VideoAssist 4K for final embedding. VideoAssist 4K hard disk player can be powered by battery, and can monitor and listen to the effect of embedding and the quality of aerial images in real time.