CN102937557A - Method and device for measuring moisture content of tray matrix - Google Patents

Method and device for measuring moisture content of tray matrix Download PDF

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Publication number
CN102937557A
CN102937557A CN2012104197185A CN201210419718A CN102937557A CN 102937557 A CN102937557 A CN 102937557A CN 2012104197185 A CN2012104197185 A CN 2012104197185A CN 201210419718 A CN201210419718 A CN 201210419718A CN 102937557 A CN102937557 A CN 102937557A
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China
Prior art keywords
water
matrix
tray
control device
moisture content
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Pending
Application number
CN2012104197185A
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Chinese (zh)
Inventor
王纪章
李萍萍
刘继展
盛庆元
赵青松
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Jiangsu University
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Jiangsu University
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Priority to CN2012104197185A priority Critical patent/CN102937557A/en
Publication of CN102937557A publication Critical patent/CN102937557A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a method and device for carrying out irrigation control in tray seedling raising based on a weighing sensor. The device provided by the invention is composed of a tray weighing sensor and a support as well as a control device, wherein a tray is placed on the support, the support is suspended below the weighing sensor, and the weighing sensor acquires weight information; and the control device is used for receiving, carrying out data processing and obtaining the moisture content of the matrix. The method provided by the invention comprises the following steps that the weighing sensor acquires the total weight information of the matrix, water, crop and the tray in different times and transmits the total weight information to the control device, the control device obtains the ratio of moisture consumption of the matrix to maximum moisture content of the matrix according to variation of the total weight of the matrix, water, crop and the tray, so as to obtain the moisture content of the matrix and realize measurement of the moisture content of the matrix in the tray seedling raising. According to the invention, water consumption is measured to obtain accurate value of the moisture content of the tray matrix, and automatic control of an irrigation system is carried out by utilizing the measured value, so as to realize moisture accurate measurement and automatic irrigation in a tray seedling production process.

Description

A kind of plug media moisture measurement method and device
Technical field
The invention belongs to the industrial hole plate seedling growth technical field, be specifically related to a kind of hole plate seedling growth control method of irrigation and device based on the Weighing type sensor.
Background technology
The industrial hole plate seedling growth technology is a kind of Novel seedling raising technology of exploitation 20 th century America sixties, applies in the advanced country such as European, Japanese rapidly in early 1980s.The object of industrial seedling rearing mainly is vegetables, flowers, tobacco, cotton and nursery stock plant.Its major advantage be the saving of labor, laborsaving, cost is low, efficient is high, is convenient to that improved seeds are promoted and the standard seedling management; Seedling is convenient to long distance transportation and mechanization transplanting, and improving activity of root system is good after the field planting, and slow seedling is fast, therefore to implementing production mechanization, scale and continuing the meaning that high-efficient development has particular importance.
In the hole plate seedling growth irrigation system, the irrigation methods such as sprinkling irrigation, tidal irrigation have been developed respectively in recent years, but when carrying out the hole plate seedling growth moisture regulation, because present soil and water supply in media assay are to adopt sensor to be inserted in tested matrix and the soil directly to measure mostly, but dish hole, cave is less, and the degree of depth of matrix is very little, and existing Water content measurement sensor can't directly be measured, therefore can't carry out cave dish automatic control, cause a large amount of wastes.Along with the development of cultivation technique without soil, adopted in a large number now seedling medium to replace soil in the hole plate seedling growth, this has also proposed new demand to irrigation.The present invention proposes a kind of hole plate seedling growth control method of irrigation and device based on the Weighing type sensor, has realized the hole plate seedling growth automatic irrigation.
Summary of the invention
Be the accurate problem of observing and controlling of the water cut of cultivation matrix in the irrigation process that realizes industrial hole plate seedling growth, the present invention proposes a kind of water content of substrate measuring method and automatic irrigation device based on LOAD CELLS, device is comprised of base portion water-feeding type irrigation system and LOAD CELLS, utilizes LOAD CELLS to carry out the measurement of water content of substrate.
A kind of plug seedling substrate device for measuring moisture is comprised of cave dish, LOAD CELLS and support, and the cave dish is positioned on the support, and support hangs on the LOAD CELLS below, and LOAD CELLS gathers weight information; Also comprise a control device, be used for receiving and carrying out the water cut that matrix was processed and obtained to data.
A kind of plug seedling substrate moisture measuring method may further comprise the steps:
Adopt LOAD CELLS to gather matrix, water, crop and cave dish general assembly (TW) information at different time, be sent to control device, control device is according to the variation of matrix, water, crop and cave dish general assembly (TW), obtain the consumption of water supply in media and the ratio of matrix maximum water holding capacity, to obtain the water cut of matrix, realize that the water supply in media in the hole plate seedling growth is measured.
The invention also discloses a kind of hole plate seedling growth base portion formula irrigation system of pouring water, this system is comprised of base portion water supply installation and above-mentioned plug seedling substrate device for measuring moisture, described base portion water supply installation comprises water tank 1 and the submersible pump 2, inlet pipeline 3, entering water electromagnetic valve 4, seedbed 5, water return pipeline 9, backwater solenoid valve 10, filtrator 11 and the back water pump 12 that connect successively, water in the water tank flows out from submersible pump, flows back to through back water pump; Control device in the described plug seedling substrate device for measuring moisture is according to the opening and closing of the water content of substrate control water-in and water-out solenoid valve of measuring, submersible pump, back water pump.
The invention has the beneficial effects as follows, by adopting base portion to supply water, utilize LOAD CELLS to carry out the accurate measurement of the water cut of plug media, and the automatic control of realization plug media water cut, solved the problem that hole plate seedling growth process mesostroma water cut can't accurately be measured and automatically control, for realizing that industrial hole plate seedling growth provides technical scheme.
Description of drawings
Fig. 1 is plug media moisture measurement and automatic irrigation device synoptic diagram
1. water tanks among the figure, 2. submersible pump, 3. water inlet pipe, 4. entering water electromagnetic valve, 5. seedbed, 6. support, 7, LOAD CELLS, 8. cave dish, 9. return pipe, 10. backwater solenoid valve, 11, filtrator, 12, back water pump
Embodiment
As shown in Figure 1, this device is by pour water formula irrigation system and form based on the water content of substrate measurement mechanism of Weighing type sensor of base portion.The base portion water supply installation comprises water tank 1, submersible pump 2, inlet pipeline 3, entering water electromagnetic valve 4, seedbed 5, water return pipeline 9, backwater solenoid valve 10, filtrator 11 and back water pump 12.Plug media moisture measurement device comprises that cave dish 8, LOAD CELLS 7 and support 6 form.
The water content of substrate measuring process is: filled with dried matrix in the dish of cave, and utilize LOAD CELLS to measure the weight of matrix and cave dish, be designated as M 0, again cave dish is immersed in the cultivation bed that is filled with water, so that whole matrix covers the cave dish, after a period of time, cultivation bed water is put dried, through measuring cave dish and the matrix weight of this moment after one section, be designated as M 1, matrix maximum water-holding capacity Q then 0Can be expressed as:
In process of crop growth, after pouring water, discharge water after immersion a period of time, measure the general assembly (TW) of the cave dish, matrix and the crop that discharge water rear preset time, be designated as M 0 ', the real-time total amount after pouring water is designated as M i, the water cut Q of matrix then iCan be expressed as:
The base portion water supply installation course of work is for obtaining the water cut of matrix according to above-mentioned water content of substrate measuring method by LOAD CELLS 7, when water content of substrate is lower than the setting water cut, then system need to be to water on the seedbed 5, open the solenoid valve 4 of inlet pipeline 3, close simultaneously the solenoid valve 10 of water return pipeline 9, and the submersible pump 2 in the startup water tank 1, finish upper hose and be transported to the seedbed.When reaching when needing water level, cut off submersible pump 1, keep certain hour, after matrix suction fully, open the solenoid valve 10 of water return pipeline 9, close the solenoid valve 4 of inlet pipeline 3, and start back water pump 12, so that water is got back in the water tank through filtration unit 11 by return pipe 9, finish the process of once pouring water.

Claims (3)

1. a plug seedling substrate device for measuring moisture is comprised of cave dish (8), LOAD CELLS (7) and support (6), it is characterized in that the cave dish is positioned on the support, and support hangs on the LOAD CELLS below, and LOAD CELLS gathers weight information; Also comprise a control device, be used for receiving and carrying out the water cut that matrix was processed and obtained to data.
2. plug seedling substrate moisture measuring method is characterized in that may further comprise the steps:
Adopt LOAD CELLS to gather matrix, water, crop and cave dish general assembly (TW) information at different time, be sent to control device, control device is according to the variation of matrix, water, crop and cave dish general assembly (TW), obtain the consumption of water supply in media and the ratio of matrix maximum water holding capacity, to obtain the water cut of matrix, realize that the water supply in media in the hole plate seedling growth is measured.
3. hole plate seedling growth base portion formula irrigation system of pouring water, it is characterized in that being formed by base portion water supply installation and plug seedling substrate device for measuring moisture claimed in claim 1, described base portion water supply installation comprises water tank (1) and the submersible pump (2), inlet pipeline (3), entering water electromagnetic valve (4), seedbed (5), water return pipeline (9), backwater solenoid valve (10), filtrator (11) and the back water pump (12) that connect successively, water in the water tank flows out from submersible pump, flows back to through back water pump; Control device in the described plug seedling substrate device for measuring moisture is according to the opening and closing of the water content of substrate control water-in and water-out solenoid valve of measuring, submersible pump, back water pump.
CN2012104197185A 2012-10-29 2012-10-29 Method and device for measuring moisture content of tray matrix Pending CN102937557A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012104197185A CN102937557A (en) 2012-10-29 2012-10-29 Method and device for measuring moisture content of tray matrix

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012104197185A CN102937557A (en) 2012-10-29 2012-10-29 Method and device for measuring moisture content of tray matrix

Publications (1)

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CN102937557A true CN102937557A (en) 2013-02-20

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103493700A (en) * 2013-09-22 2014-01-08 同济大学 Accurate irrigation integral system for mobile seedbed
CN104255397A (en) * 2014-09-22 2015-01-07 昆明理工大学 Bonsai plant weighing irrigation device
CN104273017A (en) * 2014-09-22 2015-01-14 昆明理工大学 Adjustable potted plant weighing and irrigating device
TWI503074B (en) * 2013-08-16 2015-10-11 Univ Nat Taiwan Plant growth weight measurement instrument and method thereof
CN107509616A (en) * 2017-08-07 2017-12-26 扬州大学 A kind of method to the accurate moisturizing of matrix
CN110208139A (en) * 2019-06-26 2019-09-06 北京农业智能装备技术研究中心 A kind of water supply in media sticking characteristic curve measuring device and its application method
CN111220661A (en) * 2020-01-21 2020-06-02 安徽省(水利部淮河水利委员会)水利科学研究院(安徽省水利工程质量检测中心站) Calibration device and method for soil moisture sensor
CN111721662A (en) * 2020-05-20 2020-09-29 北京农业智能装备技术研究中心 Method and system for measuring water content of fungus stick

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CN201365427Y (en) * 2009-03-06 2009-12-23 山东农业大学 Capillary liquid-suction type plug seedling raising device
CN201765164U (en) * 2010-09-03 2011-03-16 中国科学院沈阳应用生态研究所 Small-sized automatic weighing lysimeter
CN202008454U (en) * 2011-03-18 2011-10-12 北京市农林科学院 Hanging direct weighing type miniature lysimeter

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Publication number Priority date Publication date Assignee Title
US3967578A (en) * 1975-05-12 1976-07-06 Joseph Sebato Gallo Moisture gauge for a hanging potted plant
CN2543061Y (en) * 2002-07-08 2003-04-02 中国科学院地理科学与资源研究所 Hanging weighing electric measuring steaming osmoscope for field crops
CN201365427Y (en) * 2009-03-06 2009-12-23 山东农业大学 Capillary liquid-suction type plug seedling raising device
CN201765164U (en) * 2010-09-03 2011-03-16 中国科学院沈阳应用生态研究所 Small-sized automatic weighing lysimeter
CN202008454U (en) * 2011-03-18 2011-10-12 北京市农林科学院 Hanging direct weighing type miniature lysimeter

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尚庆茂: "尚庆茂博士"蔬菜集约化穴盘育苗技术"系列讲座 第五讲 蔬菜穴盘苗水分管理技术", 《中国蔬菜》 *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI503074B (en) * 2013-08-16 2015-10-11 Univ Nat Taiwan Plant growth weight measurement instrument and method thereof
US9775300B2 (en) 2013-08-16 2017-10-03 National Taiwan University Plant growth weight measurement instrument and method thereof
CN103493700A (en) * 2013-09-22 2014-01-08 同济大学 Accurate irrigation integral system for mobile seedbed
CN103493700B (en) * 2013-09-22 2015-10-28 同济大学 A kind of moving nursery bed Precision Irrigation integral system
CN104255397A (en) * 2014-09-22 2015-01-07 昆明理工大学 Bonsai plant weighing irrigation device
CN104273017A (en) * 2014-09-22 2015-01-14 昆明理工大学 Adjustable potted plant weighing and irrigating device
CN107509616A (en) * 2017-08-07 2017-12-26 扬州大学 A kind of method to the accurate moisturizing of matrix
CN110208139A (en) * 2019-06-26 2019-09-06 北京农业智能装备技术研究中心 A kind of water supply in media sticking characteristic curve measuring device and its application method
CN110208139B (en) * 2019-06-26 2021-11-05 北京农业智能装备技术研究中心 Substrate moisture holding characteristic curve measuring device and using method thereof
CN111220661A (en) * 2020-01-21 2020-06-02 安徽省(水利部淮河水利委员会)水利科学研究院(安徽省水利工程质量检测中心站) Calibration device and method for soil moisture sensor
CN111220661B (en) * 2020-01-21 2022-08-09 安徽省(水利部淮河水利委员会)水利科学研究院(安徽省水利工程质量检测中心站) Calibration device and method for soil moisture sensor
CN111721662A (en) * 2020-05-20 2020-09-29 北京农业智能装备技术研究中心 Method and system for measuring water content of fungus stick

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Application publication date: 20130220