KR20160097761A - Apparatus and Method for Measuring Moisture Content of Pellet - Google Patents
Apparatus and Method for Measuring Moisture Content of Pellet Download PDFInfo
- Publication number
- KR20160097761A KR20160097761A KR1020150019985A KR20150019985A KR20160097761A KR 20160097761 A KR20160097761 A KR 20160097761A KR 1020150019985 A KR1020150019985 A KR 1020150019985A KR 20150019985 A KR20150019985 A KR 20150019985A KR 20160097761 A KR20160097761 A KR 20160097761A
- Authority
- KR
- South Korea
- Prior art keywords
- pellet
- water content
- histogram
- calculating
- image
- Prior art date
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/44—Solid fuels essentially based on materials of non-mineral origin on vegetable substances
- C10L5/445—Agricultural waste, e.g. corn crops, grass clippings, nut shells or oil pressing residues
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Engineering & Computer Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Agronomy & Crop Science (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention discloses an apparatus and a method for measuring the pellet water content. There is provided an apparatus for measuring pellet water content by irradiating light according to one aspect of the present invention and receiving photographed image data from an image acquiring unit for photographing enlarged pellets irradiated with the light, A calculating unit for calculating a histogram of the frequency of brightness in at least one image frame using the histogram; And an operation unit for calculating a water content of the pellet using the histogram.
Description
The present invention relates to a pellet raw material management technique, and more particularly, to an apparatus and a method for measuring the water content of a pellet raw material capable of measuring the water content of the pellet raw material.
Until now, the main fuel for energy is petroleum, which is a fossil fuel, but the amount of oil is limited and it is highly dependent on foreign countries. Therefore, alternative energy sources such as solar energy, wind power, tidal power, and biomass fuel are being developed to replace petroleum.
Of these, pellet raw materials utilizing livestock manure, agricultural byproducts, and non-edible crops are in a practical use because they are a renewable resource, have less air pollution, and can be self-sufficient by region.
As an example, pellet boilers using pellet raw materials are in sale and in use. It is very important to control the water content of the pellets because the performance of the equipment using such pellet resources depends on the water content of the pellet raw material (moisture content).
Conventional methods for measuring the moisture content of pellets include an electric storage method and an oven drying method. However, this method takes a long time and it is impossible to directly measure a sample obtained from the field.
SUMMARY OF THE INVENTION It is an object of the present invention to provide an apparatus and method for measuring the moisture content of pellets, which can measure the water content of the pellet raw material.
The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.
There is provided an apparatus for measuring pellet water content by irradiating light according to one aspect of the present invention and receiving photographed image data from an image acquiring unit for photographing enlarged pellets irradiated with the light, A calculating unit for calculating a histogram of the frequency of brightness in at least one image frame using the histogram; And an operation unit for calculating a water content of the pellet using the histogram.
A method for irradiating light according to another aspect of the present invention and measuring the pellet water content by receiving photographed image data from an image acquiring unit for photographing the pellet irradiated with the light, Calculating a histogram of the frequency of brightness in at least one image frame using the histogram; And calculating a water content of the pellet using the histogram.
According to the present invention, the moisture content of the pellet raw material can be measured.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of an apparatus for measuring pellet water content according to an embodiment of the present invention. FIG.
2A to 2C are views showing an image capturing apparatus according to an embodiment of the present invention;
3 is a view showing a water content meter according to an embodiment of the present invention.
4 is a view for explaining the principle of an apparatus for measuring pellet water content according to an embodiment of the present invention.
5 is a flow chart illustrating a method for measuring pellet moisture content according to an embodiment of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, advantages and features of the present invention and methods for accomplishing the same will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. As used herein, the terms " comprises, " and / or "comprising" refer to the presence or absence of one or more other components, steps, operations, and / Or additions.
Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. FIG. 1 is a configuration diagram of an apparatus for measuring pellet water content according to an embodiment of the present invention, FIGS. 2A to 2C are views showing an image capturing apparatus according to an embodiment of the present invention, FIG. 4 is a view for explaining the principle of the pellet water content measuring apparatus according to the embodiment of the present invention. FIG.
As shown in FIG. 1, an
The
Here, the first interface may be a wired interface such as USB or IEEE994, or may be a wireless interface such as Bluetooth or Wi-Fi. Hereinafter, a case where the first interface is a USB interface will be described as an example. In this case, the
2A to 2C, the
The plurality of
The photographing
The magnification adjusting
The
The
The
On the other hand, it is preferable that the pellet in the photographing area is pressed with a glass plate or the like so as not to be influenced by the ambient illuminance and the density of the pellet itself or the like so that the pellet is shaded in the image frame.
1, the
The converting
The
Here, the calculating
At this time, a plurality of image frames may be acquired by the user using the image acquirer 110 while photographing the pellet fuel while changing the pellet fuel. Alternatively, the plurality of image frames may be photographed while varying the magnification of the image acquirer 110. [ Thus, in the present invention, it is possible to reduce the influence of environmental influences on the measured moisture content, the influence by the reflection direction of light, the influence by the enlargement magnification, and the influence by the deviation by the pellet material.
Hereinafter, the relationship between the moisture content and the lightness of the pellet raw material will be described with reference to FIG.
4, when the water content of the pellets is low, the surface formed by the moisture between the pellet particles and the pellet particles has a concave shape. Therefore, the light irradiated by the
On the other hand, when the water content of the pellet is high, as shown in the bottom view of FIG. 4, the surface formed by the moisture between the pellet particles and the pellet particles is convex, so that the light irradiated by the
As described above, since the irradiated light when the water content of the pellet is high influences the photographing region as compared with the case where the water content of the pellet is low, the brightness of the photographed image becomes closer to 255 as the moisture content is increased, Can be close to zero. In the present invention, the water content of the pellets can be measured using this principle.
The
For example, when the lightness and darkness of the histogram is in the range of 0 to 255, the
The
The calculating
The
In the above example, the
As described above, the embodiment of the present invention can provide a low-cost pellet moisture content measuring device, so that a user who uses or provides the pellet raw material directly can measure the water content of the pellet raw material in real time.
In addition, the embodiment of the present invention can replace expensive laser equipment and contribute to cost reduction of the pellet boiler.
Further, the embodiment of the present invention can be a stepping stone of equipment for measuring the water content of the pulverized material of the porous material such as pellets.
Hereinafter, a method for measuring the pellet water content according to an embodiment of the present invention will be described with reference to FIG. 5 is a flowchart illustrating a method for measuring the pellet water content according to an embodiment of the present invention.
Referring to FIG. 5, the
The
The
Here, the preset reference value may be determined using the peak value of the light and dark histogram calculated using the pellet sample whose pellet water content is known. For example, a light and dark histogram of nine pellet samples in 10% increments between 10% and 100% of water content can be calculated, and a peak value for each water content can be calculated and determined as a reference value for water content measurement.
In addition, the
As described above, the embodiment of the present invention can provide a low-cost pellet moisture content measuring device, so that a user who uses or provides the pellet raw material directly can measure the water content of the pellet raw material in real time.
In addition, the embodiment of the present invention can replace expensive laser equipment and contribute to cost reduction of the pellet boiler.
Further, the embodiment of the present invention can be a stepping stone of equipment for measuring the water content of the pulverized material of the porous material such as pellets.
While the present invention has been described in detail with reference to the accompanying drawings, it is to be understood that the invention is not limited to the above-described embodiments. Those skilled in the art will appreciate that various modifications, Of course, this is possible. Accordingly, the scope of protection of the present invention should not be limited to the above-described embodiments, but should be determined by the description of the following claims.
Claims (9)
A calculating unit for calculating a histogram of the frequency of lightness in at least one image frame using the photographed image data from the image acquiring unit; And
A calculation unit for calculating a water content of the pellet using the histogram,
Wherein the pellet water content is measured by a differential scanning calorimeter.
And calculates the histogram representing the number of pixels of the plurality of lightness sections in the at least one image frame.
And compares a peak value (Peak) of the histogram with a preset reference value to calculate a water content of the pellet.
Wherein a water content of the pellet is calculated by comparing at least one of a position and a peak value of a peak of a predetermined section of the histogram with the reference value.
And compares the average value of the histogram with a predetermined reference value to calculate a water content of the pellet.
A conversion unit for converting the first interface data received through the first interface from the image acquisition unit into the image frame interpretable by the calculation unit and providing the image frame to the calculation unit,
Further comprising a pellet water content measuring device.
Calculating a histogram of the frequency of lightness in at least one image frame using photographed image data from the image acquirer; And
Calculating a moisture content of the pellet using the histogram
Wherein the pellet moisture content is measured by the method.
And calculating a water content of the pellet by comparing a peak position of the histogram with a preset reference value.
Calculating a moisture content of the pellet by comparing at least one of a peak position and a peak value of the histogram of the pixel having the lightness value of 166 to 255 with the reference value when the lightness and darkness values of the entire lightness section of the histogram are 0 to 255 step
Wherein the pellet moisture content is measured by a differential scanning calorimeter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150019985A KR101678766B1 (en) | 2015-02-10 | 2015-02-10 | Apparatus and Method for Measuring Moisture Content of Pellet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150019985A KR101678766B1 (en) | 2015-02-10 | 2015-02-10 | Apparatus and Method for Measuring Moisture Content of Pellet |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20160097761A true KR20160097761A (en) | 2016-08-18 |
KR101678766B1 KR101678766B1 (en) | 2016-11-22 |
Family
ID=56874243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020150019985A KR101678766B1 (en) | 2015-02-10 | 2015-02-10 | Apparatus and Method for Measuring Moisture Content of Pellet |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR101678766B1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06249786A (en) * | 1993-02-25 | 1994-09-09 | Mitsubishi Nuclear Fuel Co Ltd | Inspection method for pellet edge |
JPH08136467A (en) * | 1994-11-09 | 1996-05-31 | Kurabo Ind Ltd | Defect inspection method and apparatus therefor |
JP2014025719A (en) * | 2012-07-24 | 2014-02-06 | Nippon Steel & Sumikin Engineering Co Ltd | Moisture content measuring system |
-
2015
- 2015-02-10 KR KR1020150019985A patent/KR101678766B1/en active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06249786A (en) * | 1993-02-25 | 1994-09-09 | Mitsubishi Nuclear Fuel Co Ltd | Inspection method for pellet edge |
JPH08136467A (en) * | 1994-11-09 | 1996-05-31 | Kurabo Ind Ltd | Defect inspection method and apparatus therefor |
JP2014025719A (en) * | 2012-07-24 | 2014-02-06 | Nippon Steel & Sumikin Engineering Co Ltd | Moisture content measuring system |
Non-Patent Citations (1)
Title |
---|
거대억새활용 물류비 절감을 위한 현장 전처리 기술 개발 (농촌진흥청 최종보고서) 2014.02. * |
Also Published As
Publication number | Publication date |
---|---|
KR101678766B1 (en) | 2016-11-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Ulmer et al. | Beam characterization and improvement with a flux mapping system for dish concentrators | |
Zhang et al. | Determining digital hemispherical photograph exposure for leaf area index estimation | |
JP5979567B1 (en) | Plant stress detection apparatus and plant stress detection method | |
Chauvin et al. | Modelling the clear-sky intensity distribution using a sky imager | |
Brusa et al. | Increasing the precision of canopy closure estimates from hemispherical photography: Blue channel analysis and under-exposure | |
CN109191520B (en) | Plant leaf area measuring method and system based on color calibration | |
CN204831196U (en) | School device is examined to portable wide many optical axises of spectrum parallel | |
Victoria et al. | Assessment of the optical efficiency of a primary lens to be used in a CPV system | |
CN106770289A (en) | A kind of node for distributed leaf area index hemisphere IMAQ | |
CN109767425A (en) | Machine vision light source uniformity assesses device and method | |
CN105371947B (en) | A kind of heat dump surface irradiation degree test device and method | |
KR101678766B1 (en) | Apparatus and Method for Measuring Moisture Content of Pellet | |
Kiefhaber et al. | High-speed imaging of short wind waves by shape from refraction | |
CN102176074B (en) | Sunshine duration measuring method and sunshine duration measuring device | |
CN211085632U (en) | Camera lens ghost stray light check out test set | |
CN102565069A (en) | Infrared microscopic non-destructive detector for integrated circuit | |
US10697887B2 (en) | Optical characteristic measuring apparatus | |
Guillot et al. | ARGOS: Solar furnaces flat heliostats tracking error estimation with a direct camera-based vision system | |
CN104010165B (en) | Precipitation particles shadow image automatic acquisition device | |
CN106500577A (en) | A kind of clinac vane grating method for detecting position | |
CN203479725U (en) | Glass internal defect detection device | |
CN115046644A (en) | Imaging quality detection system of infrared thermal imaging lens and control method thereof | |
CN104154991A (en) | Illuminance testing method and illuminance testing device | |
Schmid et al. | Indoor characterization of secondary optical elements | |
CN201662683U (en) | Device for testing multiparameter of digital imaging lens |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E90F | Notification of reason for final refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant |