Air-ground collaboration builds a safe bottom line!

Rail Transit Exhibition News Recently, the UAV early warning prevention and control system jointly developed by China General Signal and the Xuzhou Public Security Department of the Shanghai Railway Public Security Bureau has been deployed at the Daliuzhuang Police Point of the Xulan High-speed Railway Jiahe Zhai Institute, the system has delineated the early warning area within 6 kilometers along the railway, and within two weeks of pilot operation, it has successfully warned and driven away more than 30 UAVs, accurately detected and countered more than 20 unreported UAVs, and assisted the police to seize 3 unregistered pilots It provides a reliable technical guarantee for the safety of railway transportation.

In recent years, there have been frequent incidents of drones losing control, falling and interfering with railway operations, posing a serious threat to the safety of railway transportation. At present, it is mainly faced with the lack of accurate UAV identification and positioning technology, which makes it difficult to achieve early warning; Traditional manual inspections are inefficient and unable to respond to sudden intrusions; The electromagnetic environment of the railway is complex, and conventional countermeasures are easy to interfere with new problems and challenges, such as driving signals.

Multi-level prevention and control: The system builds a three-level defense circle from 800 meters to 100 meters - intelligent identification and early warning at 800 meters away, automatic tracking and locking within 500 meters, and security countermeasures at 100 meters near boundary. Through the distance hierarchical response mechanism, the scientific prevention and control of "warning first, then tracking, and then disposal" is realized, which not only avoids excessive interference in legal flight, but also can quickly respond to intrusion targets, forming a three-dimensional protection network covering far, medium and near all distances.

Intelligent early warning: The system is equipped with AI recognition algorithm, when it detects that the aircraft has entered the warning area, it will immediately trigger an audible and visual alarm, send warning information to the pilot synchronously, and automatically turn on high-definition camera forensics. The intelligent learning function can also memorize the characteristics of "blacklisted" drones, and re-identify, record and deal with historical threats.

Precise positioning: The system uses radio communication content analysis to solve the three-dimensional coordinates of the UAV in real time, dynamically displays the flight trajectory on the electronic map, and pushes the location data to the command center and the police terminal on duty in real time through the wireless network, providing accurate navigation support for rapid disposal.

Safe and convenient: The system innovatively adopts spectrum sensing technology and passive detection mode to completely isolate the working frequency band from railway communication, which not only ensures that the system has zero interference to railway transportation, but also avoids the related risks caused by active signal radiation. The system supports remote upgrade and modular expansion, which has significant advantages such as low cost and convenient deployment.

At present, the system has been piloted and applied in the Daliuzhuang Police District under the jurisdiction of Jiahezhai in Xuzhou City, realizing a number of functions such as automatic grading early warning, tracking, forensics and countermeasures of UAVs, and accurate decipherment technology provides first-hand information for the police to lock the pilot in the first time. This pilot achievement further verified the safety, practicability and reliability of the system, and provided an important demonstration for the follow-up railway low-altitude protection work.

As an important innovative practice achievement of "low-altitude + railway", the system fully demonstrates the strong strength of China General Signal in the research and development of intelligent security technology and scene application. In the next step, China General Signal will continue to deepen the application of low-altitude intelligent technology in the field of security, inject new momentum into the high-quality development of the industry, and contribute to the construction of a safe railway and the safe and healthy development of the low-altitude economy.

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