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Coal gangue filling reclamation soil humidity monitoring method based on GNSS-R technology

A technology of soil moisture and coal gangue, applied in measuring devices, radio wave measurement systems, satellite radio beacon positioning systems, etc., can solve rare and other problems

Active Publication Date: 2020-04-17
ANHUI UNIV OF SCI & TECH +1
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  • Claims
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Problems solved by technology

In the inversion of soil moisture, it is mainly used in bare land and soil covered by vegetation, but it is relatively rare to use this technology to monitor soil moisture in reclaimed soil filled with coal gangue

Method used

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  • Coal gangue filling reclamation soil humidity monitoring method based on GNSS-R technology
  • Coal gangue filling reclamation soil humidity monitoring method based on GNSS-R technology
  • Coal gangue filling reclamation soil humidity monitoring method based on GNSS-R technology

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Embodiment Construction

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0043] A GNSS-R technology-based soil moisture monitoring method for coal gangue filling reclamation, such as figure 1 shown, including the following steps:

[0044] 1. Build equipment and deploy sensors:

[0045] 1) Select a fixed monitoring area, configure geodetic GNSS receiver, built-in antenna and non-retractable tripod;

[0046] The field of view around the receiver is required to be flat, free of tall buildings and trees, and covered by sparse grass on the...

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Abstract

The invention discloses a coal gangue filling reclamation soil humidity monitoring method based on a GNSS-R technology. The method comprises the specific steps that 1, building a geodetic survey typeGNSS receiver and arranging a portable soil moisture tachometer sensor; 2, acquiring GNSS signal-to-noise ratio (SNR) and soil humidity data; 3, processing data; 4, extracting the frequency, the phaseand the amplitude of the preprocessed data by using methods such as Lomb-Scargle spectral analysis and least square fitting; and 5, finally, establishing a function relationship between the frequencyand the humidity, and inverting the soil humidity according to the function relationship. Compared with a traditional soil humidity monitoring method, the method has the advantages of being low in cost, sufficient in signal source and capable of achieving all-weather and all-time detection; a rapid dynamic monitoring method is provided for monitoring the soil humidity of the mine reclamation land, a technical means is provided for guaranteeing the crop yield of the reclamation land, and development and application of the GNSS-R technology in the reclamation land are promoted.

Description

technical field [0001] The invention relates to the field of soil moisture monitoring, in particular to a method for monitoring soil moisture in coal gangue filling and reclamation based on GNSS-R technology. Background technique [0002] After coal gangue fills the subsidence area, the overlying soil can be used for planting crops. In order to monitor its growth status, the monitoring of soil moisture is an essential item. The traditional methods of measuring soil moisture mainly include: direct measurement method (drying weighing method), which is recognized as the most accurate measurement method, but directly sampling the soil during the measurement will have an impact on the soil at the sampling point and Time-consuming and labor-intensive; indirect measurement methods, including time domain reflectometry (TDR), neutron method, resistance method, etc., the accuracy of the sensor can reach ±1%, which is convenient for small-scale monitoring. Due to the high cost of sens...

Claims

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Application Information

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IPC IPC(8): G06F30/20G01S19/14
CPCG01S19/14Y02W30/91
Inventor 徐良骥刘悦谌芳张坤董祥林张燕海付俊毕京锐吴剑飞王明达张卓群
Owner ANHUI UNIV OF SCI & TECH
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