Drones And Wireless Video: Everything You Must Know


Drones And Wireless Video: Everything You Must Know

In recent times, drones have become trendy gadgets. It has different useful applications in several fields. Earlier, the aerial photography in multiple sports events required full-sized helicopters. However, people are now using professional drones for taking pictures. It saves a lot of money as well as energy. Moreover, electric companies also use drones for inspection in high voltages regions. It can also help to find missing people. It is also beneficial for military purposes. In this article, we describe the implementation of a wireless video system to provide First Person View to the controller of the drone.

Drones And Wireless Video: Everything You Must Know
Drones And Wireless Video: Everything You Must Know

Wireless Video For The First Person View

There are two different ways to pilot the drone. The first one is by observing the drone manually. The second one is via the First Person View (FPV). In FPV system, the camera of the drone transmits the live video to the person via the radio signals. The display to receive the video signals can be a screen or video goggles. These systems vary from low-cost systems to advanced ones having long-range of video transmitting capability.

Challenges And Solutions For The Wireless Video

The range of the wireless system has a limit. This limit depends on the number of factors. The obstacles can sometimes make the signal to become weak. The two main challenges in the video signals in drone are:

Interference

The transmission of other signals can interfere with our primary signal. The signals having the same frequency will make your video to become noisy. The most typical interferers are nearby mobiles or hotspots, or video transmitter of other drones in your region. However, there is a mindful solution to this problem. You can select the transmitting channel far in frequency from the interferer. You need to move your antenna and the video receiver in a different direction.

Multipath Fading Due To Reflection

Sometimes, the noise-free signal can even get dropout. You can mostly observe this problem in urban or cluttered areas. The cause may be the reflection path canceling the direct path of propagation of the signal. Moreover, multipath propagation can also cause your transmitting signal to become weak. The following are the two solutions to this difficulty.

Avoidance of reflected signals: You can avoid the reflection of the video signal if you have a directional focus. The best way for this problem is to use a directional antenna system. Moreover, adding a polarization device to the antenna can also prevent this kind of problem.

Constructive combination of reflected signals: The effective combination is beneficial to avoid reflection problem in video signals. Moreover, it also helps your signal to maintain sufficient strength even in the obstacles. You can get a useful combination by using two or more antennas in transmitting and receiving side. It will sum all the signals before obtaining on screen. Hence, the signal can become stronger.

Drones And Wireless Video: Everything You Must Know
Drones And Wireless Video: Everything You Must Know

Future Development

The manufacturers have upgraded FPV technology in drones in recent years. However, it still needs some integrations to make it functional and lower cost. The companies are looking for new technologies to reduce interference and other challenges. Hence, we can able to see more complicated technology in the drones soon.

Subscribe to our monthly Newsletter
Subscribe to our monthly Newsletter