A Soil Moisture Detection Method Using Environmental Backscattering Technology

A soil moisture and backscattering technology, which is applied in the direction of material analysis, measuring devices, and analysis materials using wave/particle radiation, can solve problems such as unfavorable application and promotion of precision agriculture, and facilitate large-scale deployment and reduce maintenance costs , to achieve the effect of passive wireless transmission

Active Publication Date: 2021-02-26
TAIYUAN UNIV OF TECH
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Problems solved by technology

However, this scheme of sacrificing data collection frequency in exchange for longer working hours is not conducive to the application and promotion of precision agriculture

Method used

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  • A Soil Moisture Detection Method Using Environmental Backscattering Technology
  • A Soil Moisture Detection Method Using Environmental Backscattering Technology
  • A Soil Moisture Detection Method Using Environmental Backscattering Technology

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Such as figure 1 Shown, a kind of soil moisture detection method that adopts environmental backscattering technology of the present invention comprises the following steps:

[0024] 1. Establish a soil moisture detection system.

[0025] Wherein, the soil moisture detection system includes a soil moisture sensor 20, and the soil moisture sensor 20 includes a control circuit 1, a probe 2, a radio frequency switch 3 and an antenna 5, and the probe 2 is buried in the soil, and different capacitance values ​​will be generated according to the moisture content. After the control circuit 1 detects the capacitance value, it outputs a square wave signal with a certain frequency, and the frequency is f. After the control terminal of the radio frequency switch 3 receives the square wave signal, it selects different antenna impedances 4 under the high and low level states...

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Abstract

The invention discloses an automatic detection method of soil moisture using environmental backscattering technology, which belongs to the technical field of soil moisture detection; the steps include: establishing a soil moisture detection system; establishing a corresponding relationship between soil water content and square wave frequency; establishing multiple A soil moisture sensor network; signal reception and soil water content calculation; this method can greatly reduce the power consumption of the soil moisture sensor, reduce the maintenance cost of the sensor network, and help to realize the multi-point soil moisture sensor in precision agriculture. Deployment and the purpose of working unattended for long periods of time.

Description

technical field [0001] The invention discloses a soil moisture detection method using an environment backscattering technique, belonging to the technical field of soil moisture detection. Background technique [0002] Large-scale deployment of soil moisture sensors is a common method for real-time and accurate monitoring of soil moisture changes in a certain area, but various soil moisture sensor networks have problems such as high power consumption and low lifespan. At present, the power supply methods of sensor networks are mainly divided into two methods: cables and batteries, but both of them are very inconvenient in actual use. The cable method will not only increase the cost of the monitoring system, but also the lines laid in the shallow soil will affect agricultural production activities and pose safety risks; the battery method is greatly affected by the environment (especially in the northern region), even if solar power is added. It is necessary to replace the ba...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N23/00
CPCG01N23/00Y02A40/10
Inventor 邓霄付子健吕平杨雷崔丽琴杜超张丽
Owner TAIYUAN UNIV OF TECH
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