X-band all-solid-state dual-polarization Doppler radar for monitoring fire smoke particles

Abstract

The invention belongs to the technical field of fire, and particularly relates to an x-band all-solid-state dual-polarization Doppler radar for monitoring fire smoke particles, which comprises a radar antenna feed servo system, a radar square cabin and radar equipment, and is characterized in that the radar square cabin comprises an antenna square cabin and a radar operation square cabin; and the radar antenna feed servo system is composed of an antenna, a feed line, a rotary table and a servo control part, the antenna is composed of a feed source and a circular paraboloid reflector, and the feed line is composed of the feed source, an orthogonal mode coupler, a coupler, a power divider, a three-end circulator, a plurality of H-shaped and E-shaped bent waveguides and a straight waveguide. The radar servo system is flexible in control, the radar system can realize remote full-remote control operation, and all control including switch transmitter control, antenna scanning control and the like can be realized through software; and a standard TCP / IP (Transmission Control Protocol / Internet Protocol) mode is adopted as a data transmission mode, so that data transmission and sharing are facilitated, a user can conveniently judge the weather development trend, and reliable data support is provided for short-time forecasting.

Description

technical field [0001] The invention relates to the technical field of power tools, in particular to an X-band all-solid-state dual-polarization Doppler radar for monitoring fire smoke particles. Background technique [0002] There are frequent forest fires in China. In the early stage of fires, smoke and dust are the best detection targets, which can be achieved by detecting smoke and dust with radar. The reason why radar can detect fire is because of its microwave reflection principle, which mainly uses the following three points of fire: [0003] 1. Larger debris, flying debris, branches, leaves and other ashes that are lifted by combustion heat or exploded into the air (main function, strong echo, direct detection); [0004] 2. Scattering of radar electromagnetic waves by soot particles rising into the air; (main function, strong echo, indirect detection); [0005] 3. Scattering of radar electromagnetic waves by the chaotic airflow of the rising thermal convection colu...

AI Technical Summary

Problems solved by technology

[0006] The existing fire prevention technologies mainly include the following points: artificial watchtower fire prevention, satellite remote sensing detection of fire and infrared video surveillance fire prevention. Among them, infrared video surveillance fire prevention is the mainstream monitoring method in China, but it also has the following disadvantages: In the case of objects, it is impossible to measure and locate the distance, and the visibility distance is limited by the optical characteristics (in good weather, the telephoto lens should not exceed 10KM), and it is greatly affected by terrain obstruction and clouds, so only infrared observation can be used at night. There are large blind spots, and it is impossible to observe the whole situation. Large-scale station construction is required, and maintenance, operation and management are difficult

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