Multipoint soil moisture sensor and method utilizing same to measure soil moisture

A soil moisture and sensor technology, which is used in material analysis, measurement device, and electrical variable measurement by electromagnetic means, can solve problems such as decreased measurement accuracy, easy corrosion of probes, and difficulty in sensor layout, avoiding signal distortion, reducing The effect of low power consumption and improved measurement accuracy

Active Publication Date: 2010-04-14
BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES
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Problems solved by technology

At present, the most popular soil moisture sensors are mainly multi-needle types, but this type of sensor has brought difficulties to measure soil moisture due to its own limitations
Although the multi-needle soil moisture sensor can measure the soil moisture content in real time, if it is buried in the soil for a long time, its probes are easy to corrode, and t

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  • Multipoint soil moisture sensor and method utilizing same to measure soil moisture
  • Multipoint soil moisture sensor and method utilizing same to measure soil moisture
  • Multipoint soil moisture sensor and method utilizing same to measure soil moisture

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Embodiment Construction

[0026] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] like figure 1 Shown is a schematic structural diagram of a multi-point soil moisture sensor of the present invention, which is composed of a sensor node, a node selection module, a controller, a communication module and a power supply module. Several sensor nodes are used to measure the moisture content in different positions of the soil; a node selection module is selectively connected to the several sensor nodes and is used to gate and shut off the several sensor nodes; a communication module is used to The user instructs to wake up the controller to select the sensor node, and feed back the data measured by the sensor node to the user; the controller is connecte...

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Abstract

The invention discloses a multipoint soil moisture sensor and a method utilizing the same to measure soil moisture. The sensor comprises a plurality of sensor nodes, a node selecting module, a communication module and a controller, wherein the sensor nodes are used for measuring water moisture of different positions of soil, the node selecting module which is optionally connected with the sensor nodes is used for switching on and off of the sensor nodes, the communication module is used for waking up the controller to select the sensor nodes according to commands of users and then feeding measured data of the sensor nodes back to the users, the controller which is connected with the node selecting module and the communication module is used for acquiring and processing frequency and controlling communication between the communication module and the users.

Description

technical field [0001] The invention relates to the technical field of soil moisture measurement, in particular to a multi-point soil moisture sensor for measuring soil moisture by using the dielectric constant of soil and a method for measuring soil moisture by using the same. Background technique [0002] With the improvement of agricultural modernization and the shortage of water resources, higher requirements are put forward for the growth environment of crops. It is necessary to ensure the water demand of crops while not wasting water resources. This requires the development of suitable products for different crops. The agricultural intelligent irrigation control system is needed, but the sensor with high precision, high stability and high reliability and real-time measurement of soil moisture is the guarantee for the realization of the agricultural intelligent irrigation control system. At present, the most popular soil moisture sensors are mainly multi-needle types. H...

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Application Information

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IPC IPC(8): G01N27/00G01R27/26
Inventor 赵春江郑文刚邢振王纪华申长军鲍锋乔晓军闫华吴文彪
Owner BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES
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