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Humidity measurement method and device of culture medium

A technology of cultivation substrate and humidity measurement, which is applied in the direction of measuring devices, instruments, and material analysis through electromagnetic means, can solve the problems of ambiguous periodic watering, unscientific process, and ambiguous hand feeling, and achieve scientific cultivation and management. Scientifically accurate and fast results

Inactive Publication Date: 2019-01-22
杨杰
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Problems solved by technology

[0002] Cultivation of green plants, flowers, vegetables and other plants, the collection and control of the humidity of the cultivation substrate, at present, most of them use the naked eye, fuzzy judgment by hand, and periodic watering to control the humidity fuzzily. The process is unscientific and inaccurate; smart gardening, smart home, In the field of sensing and measurement, there is an urgent need for a cultivation substrate humidity measuring device with simple operation, accurate data, simple process, economical cost, and durability; mature circuit board processing technology, RC series network stability characteristics, and AD conversion provide the method for the present invention. necessary conditions

Method used

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing, introduce in detail the specific implementation of cultivation substrate humidity measuring method and device proposed by the present invention:

[0019] 1. In this implementation, if attached figure 1 , the method of the present invention is realized as follows:

[0020] The drive signal Vi is generated by the line on the circuit board, the frequency is f=10MHz, |Vi|=3.3V, input to the line RC series network, the resistance value R=1KΩ, the capacitance value C=100pF (when measuring the humidity of a cultivation substrate The capacitance value between the capacitor pole piece 1 and the capacitor pole piece 2, the capacitance value changes with the humidity of the cultivation substrate, and the humidity value of the cultivation substrate is 20% at this time), the impedance of the RC series network is R-j (1 / 2πfC); the driving signal Vi, Through the RC series network in the line, the humidity signal Vo =Vi (-j(1 / 2πfC) / (R-...

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Abstract

The invention relates to a humidity measurement method and device of a culture medium, and belongs to the technical field of intelligent gardening, smart home and sensing measurement. During culturingplants such as green plants, flowers and vegetables, humidity acquisition and control of the culture medium is performed mostly by naked eye and hand feeling fuzzy judgment, the humidity is fuzzily controlled by periodic and fixed watering, and the process is not scientific and accurate. A capacitance pole plate for measuring the humidity of the culture matrix and a circuit are designed in the same circuit board, the process is simple, the cost is economic, the pole plate is arranged in two same convex angle inner layers of the circuit board, and the humidity can be measured by inserting theculture medium, the method and the device are simple to operate, data is accurate, a user scientifically and accurately manages the plants, and the planting interesting is more calmly experienced.

Description

technical field [0001] The invention relates to a method and device for measuring the humidity of a cultivation substrate, belonging to the technical fields of intelligent gardening, intelligent home furnishing, and sensor measurement. Background technique [0002] Cultivation of green plants, flowers, vegetables and other plants, the collection and control of the humidity of the cultivation substrate, at present, most of them use the naked eye, fuzzy judgment by hand, and periodic watering to control the humidity fuzzily. The process is unscientific and inaccurate; smart gardening, smart home, In the field of sensing and measurement, there is an urgent need for a cultivation substrate humidity measuring device with simple operation, accurate data, simple process, economical cost, and durability; mature circuit board processing technology, RC series network stability characteristics, and AD conversion provide the method for the present invention. necessary conditions. Cont...

Claims

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Application Information

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IPC IPC(8): G01N27/22
CPCG01N27/223G01N27/228
Inventor 杨杰
Owner 杨杰
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