"Attention! There are two UAVs flying 'illegally' in the park without reporting, one of which has a frequency of 2477 MHz, and the other has a frequency of 5725 MHz. The UAV anti reaction equipment has automatically locked the target, ready to intercept and drive away..." A "UAV anti reaction" test is being simulated in Pujiang Zhigu, Minhang District, Shanghai, with the purpose of passing the independently developed TDOA (time difference of arrival) low altitude monitoring system and products, Detect and identify the "illegal flight" UAV and drive it away accurately.

In recent years, with the rapid growth of the number and application of consumer UAVs, "illegal flight", "irregular flight" and other phenomena have become new problems of urban low altitude safety, and the scientific supervision of UAVs is increasingly important. Although it is a small probability event that an aircraft collides with a UAV, when the number of UAVs increases rapidly, a small probability event may occur in a large sample. Therefore, enough attention should be paid to the safety supervision of UAVs.

"UAV detection, discovery and recognition has always been a technical problem in China's radio technology industry. How to judge UAV signals, whether UAV flight is legal and accurately locate flight trajectory are cutting-edge technologies that need to be tackled." Through the accumulation of 52 invention patents and 24 software copyrights, our UAV detection and positioning accuracy has reached the leading position in the industry.

In view of the fact that the ground security deployment of many smart park systems is relatively complete, but the low altitude security means are seriously insufficient, our company launched the "TDOA urban grid UAV management and control system", which supports large-scale networking and seamless coverage of large regions, and helps the park establish an integrated ground air three-dimensional security system.

Driven by the market, our company continuously conducts product iteration and function optimization. "At present, we are expanding the TDOA system seamlessly, and finally realizing the unified operation and management of tens of thousands of TDOA terminal devices in one network platform." Our goal is to build a low altitude and safe "Skynet" for the city with independent and controllable technology.