GNSS-R-based fire monitoring system and method

A monitoring system and fire technology, applied in the field-based, to achieve high spatial resolution, improve the level of forest fire monitoring, and facilitate data processing

Pending Publication Date: 2019-12-27
SHANGHAI ASTRONOMICAL OBSERVATORY CHINESE ACAD OF SCI
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  • GNSS-R-based fire monitoring system and method

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[0030] The present invention will be further described below in conjunction with specific embodiments. It should be understood that the following examples are only used to illustrate the present invention and not to limit the scope of the present invention.

[0031] Such as figure 1 Shown is a GNSS-R-based fire monitoring system according to an embodiment of the present invention, which is used for forest fire monitoring and includes: a GNSS satellite 1, and a temperature sensing device 3 and a GNSS-R receiver 4 connected in sequence , Noise removal system 5, data storage system 6, data discrimination system 7 and alarm system 8.

[0032] GNSS satellite 1 is set to transmit direct signals. There are multiple GNSS satellites 1, which can be GPS, GLONASS, GALileo, Beidou and other navigation system satellites. The incident zenith angle of the GNSS satellite 1 is 0-90°, and the incident azimuth angle is 0-360°. This can realize multi-angle observation of GNSS-R. The direct signal ...

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Abstract

The invention provides a GNSS-R-based fire monitoring system comprising a GNSS satellite transmitting a direct signal, and a temperature sensing device, a GNSS-R receiver, a data storage system, a data discrimination system and an alarm system that are connected in sequence, wherein the temperature sensing device receives a first reflected signal and acquires the peak value and signal-to-noise ratio data of the delayed Doppler waveform; the GNSS-R receiver receives the data, the direct signal and a second reflected signal; the data storage system extracts position information and time information from the direct signal; the data discrimination system receives the above data and information, and judges according to the peak value and signal-to-noise ratio data of the delayed Doppler waveform; the alarm system determines that the alarm sounds in fire area according to the determination result. The invention also provides a monitoring method. The invention uses the direct signal and reflected signals of GNSS, and adopts a temperature sensing device that is extremely sensitive to the forest temperature, so that the forest fire can be determined in real time.

Description

technical field [0001] The invention relates to a fire monitoring system and a monitoring method, in particular to a fire monitoring system based on [0002] GNSS-R fire monitoring system and monitoring method. Background technique [0003] Forest and grassland fires and seasonal burning have important impacts on climate and economy, and effective human monitoring is urgently needed. [0004] Fire has an important impact on the biosphere, and monitoring the location and extent of forest fires is an important part of global change research programs. [0005] Fires alter the physical condition of vegetation, releasing many greenhouse gases into the atmosphere. Chemically reactive gases released during biocombustion seriously affect chemical processes in the troposphere. The release of soot and other particulate matter during a fire causes significant physical changes in the troposphere below the fire. Natural fires and other fire-related processes have an impact on the exc...

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Application Information

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IPC IPC(8): G08B17/00G08B17/06G08B25/10G01S19/33
CPCG01S19/33G08B17/005G08B17/06G08B25/10
Inventor 吴学睿宋叶志尚伟邱辉李纯马文骁
Owner SHANGHAI ASTRONOMICAL OBSERVATORY CHINESE ACAD OF SCI
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