Using drone technology to solve the problem of wireless ultra-long-distance video transmission

A drone is an unmanned aircraft that is mainly controlled by radio remote control or its own program. Currently, there are many types of drones with a wide range of applications. Among them, industrial drones are particularly prominent. With their unique advantages, the demand for them in the personal and commercial markets is constantly increasing. Today, they are deeply used in aerial photography, agriculture, express transportation, surveying and mapping, and news reporting.

Wireless video transmission of drones ensures that ground personnel can use the high-sensitivity cameras they carry to take uninterrupted pictures and obtain video data. The information and images they obtain can be transmitted back to the ground through the image transmission system, and the images taken by the flying drone can be transmitted to the ground wireless image transmission remote control receiving equipment in real time and stably.

There are many common scenarios for wireless ultra-long-distance video transmission of drones. Today, we will mainly analyze its application in the field of public security and briefly analyze how it works in these scenarios.

1. On-site data collection: When a city’s monitoring equipment fails or is damaged, relevant departments can control drones to quickly reach the scene to conduct multi-angle and wide-range observations. The ground command center connects to drones flying in the air and receives audio and video information taken by drones, allowing decision makers to track the development of events in a timely manner, make correct judgments, and issue instructions immediately.

Second, for security and search, drones can track and monitor the various ways that fugitives escape. Searchers can monitor fugitives at night by connecting drones equipped with infrared equipment, including scanning flight searches for suspects hiding in the jungle, and transmit images of the fugitives' escape routes to the police in a timely manner, thereby improving the police's arrest speed and accuracy.

3. Large-scale assembly monitoring: drones can monitor the assembly venue from the air, and can quickly maneuver to any required area to search for suspicious people and vehicles on the ground. The ground command center connects and controls the drone. In addition to taking clear pictures, it can also transmit video images back to the command center in real time. The command center has real-time control of the scene based on the data transmitted back by the drone. Once an emergency is discovered, it can be discovered in the first time and measures can be taken to improve the efficiency of emergency handling and reduce casualties, property losses, etc.

Just like all video transmissions require network streaming, drone ultra-long-distance video transmission also requires it, and even has stricter requirements on the network. Only by ensuring a stable and high-speed network can the real-time and stability of image transmission be guaranteed, and ensure that there are no omissions in the work. However, the commonly used traditional broadband wireless and mobile data transmission have always had problems such as long network delay, slow speed, unstable signal, etc., which are difficult to meet the requirements of real-time and stable image transmission. At present, there are many 4G multi-card aggregation devices on the market to strengthen the network, so as to ensure the stability of the drone wireless video transmission network.

There are many manufacturers that develop and produce 4G multi-card aggregation equipment. Because it is a relatively niche technical product, there is not much information. After searching in many ways, the editor learned that the solution with more information is the new fulcrum drone equipped with the new fulcrum 4G aggregation routing board ICG. The main principle of this solution is to use the multi-network multi-link aggregation technology of the new fulcrum 4G aggregation routing board ICG to aggregate the network, so that the drone can build a stable data return link with the ground station and the remote command center, and realize the real-time transmission of the video shot by the drone to the command center.

At present, drones are increasingly used in civilian applications, and have been widely used in many fields such as public safety, emergency search and rescue, agriculture and forestry, environmental protection, transportation, communications, meteorology, film and television aerial photography, media news, etc.