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FDR method soil temperature and humidity sensor measured value calibration system and construction method thereof

A technology of temperature and humidity sensor and calibration system, which is applied in the direction of neural learning methods, instruments, biological neural network models, etc., can solve the problems of considering and not being able to use accurate soil moisture values, and achieve low power consumption, low long-distance, and improved accuracy sexual effect

Active Publication Date: 2022-02-08
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] CN113049650A discloses a soil moisture sensor intelligent calibration system and its calibration method. This method needs to combine various components to simulate the soil moisture data in the equipment, so as to calibrate the sensor, and because the soil moisture in actual operation The value of the sensor will be affected by many factors, showing limitations, and cannot be considered as an accurate soil moisture value, and cannot solve the defect that soil parameters affect the measured value of the FDR method soil temperature and humidity sensor

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  • FDR method soil temperature and humidity sensor measured value calibration system and construction method thereof
  • FDR method soil temperature and humidity sensor measured value calibration system and construction method thereof
  • FDR method soil temperature and humidity sensor measured value calibration system and construction method thereof

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Embodiment 1

[0053] The FDR method soil temperature and humidity sensor measurement value calibration system of the present embodiment includes a perception layer, a network layer and an application layer, wherein:

[0054] The sensing layer contains four sensors, which are FDR-100 soil temperature and humidity sensor 1, TYD-2 soil hardness sensor 2, CO 2 Sensor 5, light temperature and humidity sensor 6, STM32 microcontroller 4, STM32 microcontroller 4 are respectively connected to FDR-100 soil temperature and humidity sensor 1, TYD-2 soil hardness sensor 2, CO 2 The sensor 5, the light temperature and humidity sensor 6 and the STM32 microcontroller 4 are connected to the corresponding matching Lora sub-nodes in turn through the 485 serial port connection line and the Dupont line. The function of the sensing layer is to collect soil parameter data of the soil, including soil temperature and humidity. , hardness and CO in the environment 2 Concentration and light intensity; the function o...

Embodiment 2

[0060] The construction method of the FDR method soil temperature and humidity sensor measurement value calibration system of the present embodiment, the specific steps are as follows:

[0061] The first step is to establish a small experimental measurement system:

[0062] The small experimental measurement system such as figure 1 As shown in the schematic block diagram of the structure of the small-scale experimental measurement system established by the present invention, it consists of FDR-100 soil temperature and humidity sensor 1, TYD-2 type soil hardness sensor 2, CO 2Sensor 5, light temperature and humidity sensor 6, stepper motor 3, STM32 microcontroller 4, USR-G781 router 7 and cloud monitoring platform 8, FDR-100 soil temperature and humidity sensor 1, TYD-2 type soil hardness sensor 2, stepper The motor 3 is connected to the STM32 single-chip microcomputer 4 respectively, and the TYD-2 type soil hardness sensor 2 is separately connected to the stepping motor 3, an...

Embodiment 3

[0075] The application operation method of the FDR method soil temperature and humidity sensor measurement value calibration system of the present embodiment is as follows:

[0076] The operation steps of this system in practical application mainly include: first, connect the FDR-100 soil temperature and humidity sensor 1 to be calibrated into the STM32 single-chip microcomputer 4 according to the connection mode of the sensing layer described in the above-mentioned embodiment 1, and then connect the CO 2 Sensor 5, light temperature and humidity sensor 6, and TYD-2 type soil hardness sensor 2 are connected to the STM32 single-chip microcomputer 4 through the 485 serial port connection line in turn, and then the sensing layer described in Embodiment 1 is connected to the Lora sub-node, and the system is connected to Power on and turn on the Lora sub-node and Lora concentrator, and then view the calibrated data on the cloud server platform 8, including soil moisture, soil tempera...

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Abstract

The invention discloses an FDR method soil temperature and humidity sensor measured value calibration system and a construction method thereof, and relates to a soil parameter and soil temperature and humidity sensor device. The system is composed of a sensing layer, a network layer and an application layer. The construction method comprises the following steps: establishing a small experimental measurement system for measurement, storing the measurement data to prepare for establishment of a data set, constructing and training a BP neural network relationship according to the obtained data set, and constructing the FDR method soil temperature and humidity sensor measurement value calibration system. The system can output a calibrated soil humidity value according to measured current soil parameter data of the temperature, the humidity and the hardness of the soil, the calibrated soil humidity value is closer to the true value of the soil humidity than the soil humidity value output by the FDR soil temperature and humidity sensor, and measured accurate soil parameter values are fed back to a user in time, so that the defect that an output result of a soil humidity sensor in the prior art is influenced by a plurality of soil parameters is overcome.

Description

technical field [0001] The technical solution of the present invention relates to soil parameters and soil temperature and humidity sensor devices, in particular to a construction method of a calibration system for measuring values ​​of soil temperature and humidity sensors by the FDR method. Background technique [0002] Plants grow in the soil and need the supply of soil moisture all the time. Insufficient irrigation or over-irrigation will have adverse effects on crops. In precision agriculture, it is necessary to monitor the growth of crops at all times, especially the water demand of crops. To obtain the water demand of crops, it is necessary to monitor the water content of the soil at all times, that is, to measure its soil moisture. [0003] Soil moisture is one of the important factors affecting the growth of crops. Accurate measurement of soil moisture is of great significance for improving the utilization rate of agricultural water, saving agricultural water resour...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D18/00G06N3/08
CPCG01D18/00G06N3/084
Inventor 李炳鑫宋涛司玉龙徐晓辉李锡哲朱伟龙汪曙李仁杰
Owner HEBEI UNIV OF TECH
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