China's independent research and development of commercial fog monitoring radar

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In recent years, heavy fog and fog have become important culprits in traffic accidents in autumn and winter, especially major accidents on highways. Due to the suddenness and locality of the fog, monitoring and early warning are extremely difficult. Recently, a domestic commercial fog monitoring and early-warning radar independently developed by China was launched in Hefei, Anhui Province. The positioning accuracy of the fog can reach 7.5 meters.

Kay Ltd. in Anhui Information Industry R & D Center for Zhou Jian said, the fog monitoring and early warning radar together by the Hefei Institute of Chinese Academy of Sciences and the substance of the enterprise, which lasted two years successfully developed its core detection unit to monitor the fog Early warning and visibility measurement synthetic optical radar.
"Mist fog" is often found in the local area of ​​tens to hundreds of meters in dense fog. The fog is thicker, visibility is extremely low, and constantly changing.
"Fog warning radar monitoring is based on optical remote sensing technology developed from inside a laser light source, in operation, the laser irradiation emitted into the atmosphere, the particles will produce scattering, and optical telescopes inside the radar system The scattered light signal is converted into an electrical signal and recorded and analyzed by the data acquisition system, so that the fog can be positioned. The current positioning accuracy can reach 7.5 meters, said Zhou Jian.
According to reports, this radar has two characteristics that make it possible to meet the commercial needs: one can detect the mist zone and the non-boundary region fog haze and visibility area; Second light emitting and improvement works, significantly reducing cost. At present, the method of laser radar automatic acquisition and protection of this system has already applied for national invention patents, and it is expected that mass production will be realized in 2018.
(Original Title: Positioning Accuracy of 7.5 Meters: China's Self-developed Commercial Fog Monitoring Radar Monitoring Radar)

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