KR101045826B1 - CO2 collection system for field crops - Google Patents

Abstract

The present invention relates to an automatic carbon dioxide capture device of the field crop plantation, the fixed frame installed in the field crop plantation; A partition wall disposed on the fixed frame to divide the field crop plantation into a plurality of collection sections; A moving chamber installed to be transportable on the fixing frame to cover the collection section partitioned between the partition walls; Transfer means for conveying the moving chamber so as to sequentially cover each of the collection section between the partition wall: Ventilator installed in each of the partition wall to introduce and discharge the same amount of air into the collection section covered by the moving chamber: And a gas analyzer that monitors the exchange amount of carbon dioxide by collecting a predetermined amount of air discharged from the collection section by the fan, and is installed directly on the field soil in which the field crop is grown to destroy the crop. Because it can be experimented as closely as possible to the environment where it is actually grown, it has the effect of minimizing artificial interference.

Field Crops, CO2, Capture, Gas Analyzer, Mobile Chamber

Description

CO2 AUTOMATIC SLIDING CANOPY CHAMBER IN UPLAND}

The present invention relates to a carbon dioxide automatic capture device of a field crop plantation, and more particularly to a carbon dioxide automatic capture device of a field crop plantation that can monitor the carbon dioxide between the atmosphere and crops in real time as well as the exchange of carbon dioxide between the atmosphere and the soil in the field soil. will be.

To date, there are no CO2 capture and measurement methods approved by the IPCC (Government Multilateral Consultation on the United Nations Framework Convention on Climate Change). Development of collection techniques is urgently needed.

In general, a chamber measuring method using a small chamber capable of capturing carbon dioxide is used in addition to an analyzer that is already commercialized.

The chamber measurement method is installed and sealed periodically by using a small chamber, and then collects carbon dioxide gas at regular intervals using a syringe, etc., and uses the GC mass in the laboratory or sends it directly to the carbon dioxide analyzer to change the concentration of carbon dioxide per unit time. It is a measurement method to measure.

However, most of the small chambers applied to the chamber measurement method are small cylindrical and limited to time, manpower consumption, and weather because the collection equipment must be installed at the point where CO 2 is to be collected and moved and reinstalled again. do.

In addition, because chamber measurement requires measurement personnel, it cannot be collected at night and is limited by weather factors, so that continuous measurement of carbon dioxide is not possible.

In addition, the use of compact chambers only monitors the flow of carbon dioxide between the soil and the atmosphere, eliminating photosynthesis and respiration between the atmosphere and crops.

In addition, in analyzing the daily data, it may be possible to commit an analysis error in which a small number of measurement data are analyzed by expanding the daily average data.

An object of the present invention for solving the above problems is the development of an automated carbon dioxide collector that can include the exchange of carbon dioxide between soil, plants and the atmosphere in continuous and real time over the entire crop cultivation period, and based on the continuous data Through the analysis, it is to provide a CO 2 automatic capture device of the field crop plantation, which accurately analyzes the net yield of the ecosystem at the field crop plant for one day and further the entire growing season.

Carbon dioxide automatic collection device of the field crop plantation of the present invention for achieving the above object is a fixed frame installed in the field crop plantation; A partition wall disposed on the fixed frame to divide the field crop plantation into a plurality of collection sections; A moving chamber installed to be transportable on the fixing frame to cover the collection section partitioned between the partition walls; Transfer means for conveying the moving chamber so as to sequentially cover each of the collection section between the partition wall: Ventilator installed in each of the partition wall to introduce and discharge the same amount of air into the collection section covered by the moving chamber: And it may include a gas analyzer for monitoring the exchange amount of carbon dioxide by collecting a predetermined amount of air discharged in the collection section by the fan.

The conveying means includes a conveying motor for conveying the moving chamber along a fixed frame; A proximity sensor detecting a transfer distance of the moving chamber provided at one side of the partition wall; And a controller for operatively controlling the transfer motor according to the transfer distance of the movement chamber detected by the proximity sensor.

It may further include a sealing means for sealing between the partition and the moving chamber.

The sealing means is a silicon tube installed along the edge of the partition wall; And

An air injector may be included when air is injected into the silicon tube to seal the gap between the partition wall and the moving chamber.

It may further include an air temperature sensor, a soil breathing sensor, a soil temperature sensor, and a soil moisture sensor installed inside each collection section.

The automatic carbon dioxide capture device of the field crop plantation field of the present invention can be installed directly on the field soil in which the field crop is grown, so that the experiment can be performed as closely as possible to the environment in which the crop is actually grown without destroying the crop, thereby minimizing artificial interference. Has an effect.

In addition, the automatic carbon dioxide capture device of the field crop cultivation of the present invention is very practical because it can be grown directly and the net production of the ecosystem can be measured, and it is possible to perform experiments on a large number of crop individuals instead of cultivating only one crop individual. In addition, by monitoring the change of carbon dioxide generated in the field soil in real time, it is faster and has the effect of automatically measuring the change in the net production of the ecosystem by each automatic growth chamber.

In addition, the automatic carbon dioxide capture device of the field crop cultivation of the present invention does not require labor costs for 3-4 people to collect carbon dioxide compared to the existing manual gas collection in the capture of carbon dioxide in the field soil, saving gas collection time and 24 It is possible to measure and monitor continuously 365 days a year, and has the effect of expanding the research scope.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

1 is a perspective view of a carbon dioxide automatic collection device of the field crop plantation according to the first embodiment of the present invention, Figure 2 is a side view showing a unit collection section of the carbon dioxide automatic collection device of the field crop plantation.

Referring to Figures 1 and 2, the carbon dioxide automatic capture device 1 of the field crop plantation is fixed frame 10, partition 20, moving chamber 30, transfer means, ventilator 50, gas analyzer It comprises 80.

The fixed frame 10 is installed along the edge of the field crop plantation in which the field crops are directly grown.

The partition wall 20 is installed on the fixed frame 10 to divide the field crop plantation into a plurality of collection sections for collecting carbon dioxide, respectively.

In this embodiment, the field crop planting on which the fixed frame 10 is installed is divided into five collection sections 11, 12, 13, 14, and 15 by seven partition walls 20, and each collection section is At 1.8mx 4m x 1.6m (length x width x height), the plant is sized to grow inside.

On the other hand, the partition wall 20 forming the ends of the collection section (11, 15) is preferably made of a vinyl material with good light transmission.

The moving chamber 30 is installed to be transported on the fixed frame 10 and is formed to cover any one of the collection sections 11, 12, 13, 14, and 15 partitioned between the partition walls 20. .

The transfer means transfers the moving chamber 30 to sequentially cover the collection sections 11, 12, 13, 14, and 15 partitioned between the partition walls 20.

The conveying means comprises a conveying motor 40, a proximity sensor 71, and a controller 100.

The conveying motor 40 is provided at one end of the fixing frame 10 to provide the conveying power so that the conveying chamber 30 connected by a power transmitting means such as a chain or a belt is conveyed along the longitudinal direction of the fixing frame. do.

In this embodiment, the transfer motor 40 exemplifies that it is composed of a direct current motor. However, the present invention is not necessarily limited thereto, and various types of transfer motors may be applied as long as the transfer chamber 30 may transfer the transfer power so that the moving chamber 30 may be transferred.

The proximity sensor 71 is provided on one side of the partition wall 20 adjacent to the movement path of the movement chamber 30 to detect the transferred position information of the movement chamber 30 moved by the transfer motor 40.

And the controller 100 is configured to operatively control the feed motor 40 in accordance with the transfer position of the movement chamber 30 detected by the proximity sensor 71.

The controller 100 operates the transfer motor 40 to transfer the moving chamber 30 along the fixed frame 10, and the collecting section in which the moving chamber 30 is partitioned by the partition wall 20, for example, a second one. When the position that completely covers the collection section 12 is reached, the proximity sensor 71 operates to block the driving force transmitted by turning off the transfer motor.

On the other hand, the carbon dioxide automatic collection device 1 of the crop planting area according to the present embodiment, sealing between the partition wall 20 and the moving chamber 30 partitioning the collection section (11, 12, 13, 14, 15) It further comprises a sealing means for making.

3 is a side cross-sectional view of the automatic carbon dioxide capture device of the field crop plantation of FIG.

Referring to FIG. 3, the sealing means may comprise a silicon tube 25 and an air injector 27.

The silicon tube 25 is formed along the outer edge of the partition walls 20 that define the collecting ends 11, 12, 13, 14, 15. In addition, the air injector 27 allows air to flow in and out of the silicon tube 25.

On the other hand, the air injector 25 is transported so that the moving chamber 30 covers the collection section 12 as an example, and then operated and controlled by the controller 100 to partition the collection section 12. Air is injected into the silicon tube 25 to seal between the 20 and the moving chamber 30. In addition, in order to transfer the moving chamber 30 to cover another adjacent collection section 11 or 12, the partition wall 20 which partitions the capture section 12 by discharging the air filled in the silicon tube 25 and moves therein. Allow the chambers 30 to be spaced apart.

Referring again to FIGS. 1 and 2, the gas analyzer 80 is hermetically covered and sealed by the moving chamber 30 and the silicon tube 25 through a collecting hose 85 provided at one side by the ventilator 50. Collecting a predetermined amount of air introduced and discharged in the capture section 12 to measure the exchange amount of carbon dioxide in real time.

In addition, the carbon dioxide exchange amount measured in real time by the gas analyzer 80 is input and stored in a storage device installed in the controller 100.

On the other hand, in each of the capture section (11, 12, 13, 14, 15), the soil breathing meter 70, the atmospheric temperature sensor 72, the soil temperature sensor 73, and the soil moisture sensor 74 It is further provided.

Meanwhile, the soil respiration meter 70, the atmospheric temperature sensor 72, the soil temperature sensor 73, and the soil moisture sensor 74 are connected to the controller 100 to measure the collection interval 12 measured therefrom. The soil respiration value, the atmospheric temperature value, the soil temperature value, and the soil moisture value are respectively input into and stored in the storage device of the controller 100.

Hereinafter, a description will be given of the operation of the carbon dioxide automatic capture device 1 of the field crop plantation in accordance with an embodiment of the present invention.

First, the controller 100 moves the moving chamber 30 to cover the first collecting section 11 along the fixed frame 10 by the driving force of the transfer motor 40.

When the moving chamber 30 reaches a position to cover the first collecting section 11, the approach sensor 71 detects this, and blocks the driving force of the feed motor 40 according to the detection signal.

Next, the air injector 27 is operated to inject air into the silicon tube 25 installed at the outer side of the two partition walls 20 partitioning the first collecting section 11 to move with both partition walls 20. Closing the gap between the chambers 30 to close the first collecting section 11, and at the same time to operate the ventilator 50 installed on both partition walls 20 to inflow and discharge the same amount of air.

At this time, a predetermined amount of air is collected through a collecting hose 85 installed adjacent to the rear side of the fan 50 and sent to the gas analyzer 80 to analyze the exchange amount of carbon dioxide.

After the measurement of the first collecting section 11, the air is extracted from the silicon tube 25 installed in the two partition walls 20 partitioning the first collecting section 11 by using the air injector 27, fixed frame After moving the moving chamber 30 to the second collection section 12 along (10), the same process as described above is repeatedly sealed, and the same amount of air is introduced into and discharged from the fan 50. The exchange amount of carbon dioxide is measured for the first collection section 12.

Thereafter, the moving chamber 30 is sequentially moved from the third to the fifth collection section 13-15, and the carbon dioxide exchange amount is continuously measured. When one cycle from the first to the fifth collection section is completed, Go back to the first collection compartment and continue the measurement, which is measured 24 hours a day, 365 days in a row.

Figure 4 is a graph comparing the carbon dioxide emissions of the conventional small carbon dioxide chamber and automatic field harvesting plant carbon dioxide capture device according to an embodiment of the present invention.

Referring to Figure 4, the most considerations when using the carbon dioxide automatic capture device (1) of the field crop plantation of the present invention is the sealing property of the partition wall 20 and the moving chamber 30 using the expansion of the silicon tube (25) This sealability can be calculated through the difference between the net ecological yield measured using the carbon dioxide automatic capture device (1) of the present embodiment and the soil respiration measured at the same time when there is no crop at all.

As a result of the sealing rate verification experiment of the automatic carbon dioxide capture device (1) in the field crop field, the sealing rate was about 95.6%, showing good results.

Therefore, the CO 2 automatic capture device 1 of the field crop plantation of the present embodiment does not require labor costs for 3-4 people collecting CO 2 samples compared to the conventional gas collection, and saves gas collection time and continuously measures for 24 hours 365 days. And monitoring, and to expand the scope of research.

In addition, several daily measurements using existing small chambers can be used to exclude the underestimated portion of the net production of the ecosystem when monitoring daily averages and other seasonal trends.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but many variations and modifications may be made without departing from the spirit and scope of the invention. And it goes without saying that they belong to the scope of the present invention.

1 is a perspective view of a carbon dioxide automatic collection device of the field crop plantation according to the first embodiment of the present invention.

2 is a perspective view showing a unit collection section of the carbon dioxide automatic capture device of the field crop plantation.

3 is a side cross-sectional view of the automatic carbon dioxide capture device of the field crop plantation of FIG.

Figure 4 is a graph comparing the carbon dioxide emissions of the conventional small carbon dioxide chamber and carbon dioxide automatic collection device of the field crop plantation in accordance with an embodiment of the present invention.

<Description of Main Reference Signs>

10: fixed frame 20: bulkhead

25: silicone tube 27: air injector

30: moving chamber 40: feed motor

50: ventilator 70: soil breath meter

71: proximity sensor 72: ambient temperature sensor

73: soil temperature sensor 74: soil moisture sensor

80: gas analyzer 85: capture hose

100: controller

Claims (6)

Fixed frame installed in the field crop plantation; A partition wall installed at the fixed frame to divide the field crop plantation into a plurality of collection sections; A moving chamber installed to be transportable on the fixed frame to cover the collection section partitioned between the partition walls; Conveying means for conveying the moving chamber so as to sequentially cover each collection section between the partition walls; A fan installed at each of the partition walls to introduce and discharge the same amount of air into the collection section covered by the mobile chamber; and And a gas analyzer for collecting a predetermined amount of air discharged from the collection section by the fan to monitor an exchange amount of carbon dioxide. In claim 1, The conveying means, A conveying motor for conveying along the fixed frame by the moving chamber; A proximity sensor for detecting a transfer position of the moving chamber provided at one side of the partition wall; And And a controller for operatively controlling the transfer motor according to the transfer distance of the moving chamber detected by the proximity sensor. In claim 1, And an airtight carbon dioxide collection device for a field crop plantation further comprising a sealing means for sealing between the partition wall and the moving chamber. 4. The method of claim 3, The sealing means, A silicon tube installed along an edge of the partition wall; And And an air injector for injecting and discharging air into the silicon tube when the partition is closed between the partition and the moving chamber. In claim 1, Carbon dioxide automatic capture device of the field crop plantation further comprising a soil respiration meter installed in each capture section. In claim 1, The carbon dioxide automatic collection device of the field crop plantation further comprises an air temperature sensor, a soil temperature sensor, and a soil moisture sensor installed inside each capture section.

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