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Multi-scale soil moisture content synergistic observation device

A soil moisture, multi-scale technology, applied in the direction of measuring devices, soil material testing, nan, etc., can solve the problems of scale mismatch, inability to carry out same-scale verification, impact, etc., achieve good scalability, improve irrigation efficiency and water resources Effectiveness of Utilization, Expanded Applications and Research Areas

Inactive Publication Date: 2015-07-15
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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Problems solved by technology

However, the inversion of soil moisture using remote sensing technology also has some shortcomings. For example, the remote sensing pixels are large, and the ground observation data are usually point-scale. There are scale mismatch problems in statistical relationship regression, and the same-scale verification of the inversion results cannot be carried out. The method of artificially determining the dry / wet edge will also bring about the influence of subjective factors, etc.

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Embodiment Construction

[0024] See figure 1 , The present invention is a multi-scale soil moisture cooperative observation device (MSM-COD), which is composed of two major parts: hardware and software. Hardware main satellite platform 1, fast neutron detection probe 2, slow neutron probe 3, pulse counter 4, protective case 5, data collector (built-in transmission module) 6, battery 7, antenna 8, connecting wire 9, mounting bracket 10 , U-shaped card 11, U-shaped bolt 12, solar panel 13, TDR soil water sensor 14, notebook computer 15. The connection relationship between them is: the assembly of the regional soil moisture measurement system CRS1000B includes the data collector 6, the battery 8, and the solar controller 7, which are directly fixed in the protective case 5, and the accompanying mounting bracket 11 is fixed on the ground first, When doing long-term observations, cement piers can be placed on the ground to increase the stability of the instrument; then the top and bottom ends of the U-sha...

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Abstract

The invention discloses a multi-scale soil moisture content synergistic observation device. The device is composed of a wireless observation network WSN composed of a plurality of TDR soil moisture sensors, a region soil moisture measurement system CRS1000b, a satellite platform, a notebook computer hardware device platform and multi-scale soil moisture content synergistic observation control terminal software; the soil moisture content synergistic observation is launched under three-scale soil moisture content synergistic observation scheme of point, region and satellite pixel element; the existing advanced device and advantage technology method are integrated, the multi-scale soil moisture content synergistic observation is realized through the synergistic observation scheme design, the bottle neck of soil moisture content remote sensing retrieval result verification is broken through, the application and research field are developed; the popularization application can be served for most strict industries such as water resource management, agricultural water-saving and drought observation, the irrigation benefit and water resource utilization rate are improved.

Description

technical field [0001] The present invention is a multi-scale soil moisture collaborative observation device (MSM-COD / M) used in farmland water conservancy and flood control and drought relief. The significance lies in the simultaneous acquisition of soil moisture at different spatial scales, serving agricultural drought observation business and scientific research on soil moisture model calibration, verification, and scale issues, and providing technical and data support for improving irrigation efficiency and water resource utilization. Industry technology application field. Background technique [0002] Soil water is distributed in the soil layer below the ground and above the groundwater surface, also known as the unsaturated zone moisture in the soil, and is an important water resource (also known as soil moisture or soil moisture in farmland water conservancy). Soil water is an important factor in the interaction between soil, crops, and the atmosphere, and is the bas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24G01N23/00H04W4/00
Inventor 庞治国宋文龙路京选付俊娥曲伟杨永民李琳蔡静雅
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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