FIELD: fire-fighting equipment.
SUBSTANCE: invention relates to fire safety and can be used for remote detection of fire at early stages of smoky and smokeless combustion of combustible materials. Method of detecting local combustion sources involves probing the atmosphere with a turbulent lidar by sector or circular azimuthal scanning at a small angle of inclination of the path. Profile of echo signals of the main receiving channel is recorded, which contains an echo signal from molecules and aerosol particles and an additive, which occurs due to atmospheric turbulence, and an echo signal of the additional receiving channel, containing an echo signal from molecules and aerosol particles. From the obtained echoes, the turbulent addition profile of the main receiving channel echo, the profile of the turbulence effect factor on the average power of the scattered light at the receiver and the profile of the structural characteristic of the refraction index of air are determined, on the basis of which the presence of a combustion source at the corresponding distance and in the corresponding azimuthal direction is determined.
EFFECT: rapid remote detection and location of the source of smoky and smokeless combustion.
1 cl, 7 dwg
Title | Year | Author | Number |
---|---|---|---|
METHOD AND LIDAR SYSTEM FOR OPERATIONAL DETECTION OF CLEAR-AIR TURBULENCE FROM AN AIRCRAFT | 2023 |
|
RU2798694C1 |
METHOD AND LIDAR SYSTEM FOR DETECTING ORIENTED ICE CRYSTALS IN ATMOSPHERE | 2023 |
|
RU2813096C1 |
METHOD AND LIDAR SYSTEM FOR OPERATION CONTROL OF TURBULENCE INTENSITY ON THE GLIDE PATH | 2021 |
|
RU2769090C1 |
METHOD FOR DETERMINING THE VERTICAL PROFILE OF THE INTENSITY OF OPTICAL TURBULENCE IN THE ATMOSPHERE | 2022 |
|
RU2789631C1 |
COMBINED LIDAR | 2020 |
|
RU2738588C1 |
DEVICE FOR TWENTY-FOUR-HOUR DETECTION AND MONITORING OF SPREAD OF FIRE CENTERS IN REGION | 2004 |
|
RU2276808C2 |
METHOD FOR AUTOMATICAL DETERMINING ICEBERG PARAMETERS BY HYDROLOCATION METHOD | 2016 |
|
RU2619311C1 |
LIDAR FOR SOUNDING DENSE AEROSOL FORMATIONS IN THE ATMOSPHERE | 2022 |
|
RU2801962C1 |
DEVICE FOR FIRE DETECTION IN ROOMS WITH SPACE BETWEEN CEILINGS | 2000 |
|
RU2178919C1 |
METHOD AND APPARATUS FOR SIMULATING RADAR INFORMATION | 2011 |
|
RU2489753C2 |
Authors
Dates
2025-02-25—Published
2024-06-08—Filed