WO2005088273A1 - 物体のカロリー測定方法及び物体のカロリー測定装置 - Google Patents
物体のカロリー測定方法及び物体のカロリー測定装置 Download PDFInfo
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- WO2005088273A1 WO2005088273A1 PCT/JP2005/004222 JP2005004222W WO2005088273A1 WO 2005088273 A1 WO2005088273 A1 WO 2005088273A1 JP 2005004222 W JP2005004222 W JP 2005004222W WO 2005088273 A1 WO2005088273 A1 WO 2005088273A1
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Definitions
- the present invention relates to a method of measuring the calorie of an object such as food and an apparatus for measuring the calorie of an object, and it is possible to nondestructively measure the calorie of an object in a short time and easily by applying near infrared rays.
- the present invention relates to a method of measuring the calorie of an object and an apparatus for measuring the calorie of an object. Background art
- the liquid sample in the test tube is irradiated with near-infrared light of 700 nm-1 lOO nm from the outside, and the scattered reflected light, scattered transmitted light or transmitted reflected light of the liquid sample is detected by the optical sensor to detect the liquid sample.
- the near-infrared absorption spectrum of the liquid sample is measured, and this measured value is substituted for the spectral force measured by the same method, into a previously prepared calibration curve to obtain, for example, fat, protein, starch (carbohydrate) of the liquid sample. It measures the components such as iodine value and acid value.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2002-122538
- the calorie calculation of food is calculated, for example, by applying an existing database such as "Fifth edition Japanese food standard composition table".
- an existing database such as "Fifth edition Japanese food standard composition table”.
- the quality changes depending on the place of production, the time of collection, sales, etc., and the calorie value is accurately indicated.
- the measurement of calorie content is carried out by pulverizing the sample into a fluid state and measuring the amounts of each component of fat, protein and carbohydrate by chemical analysis and measuring the amount of the component
- proteins and carbohydrates are calculated by multiplying coefficients of 4,000
- lipids are calculated by multiplying coefficients of 9,000.
- This method applies complicated and complex operations such as titration and adjustment of reagents by applying extraction technology combining chemical and physical means and analysis technology using chemical reaction, and also requires a centrifugal machine.
- analytical instruments such as spectrophotometers, and their extraction and analysis require specialized techniques.
- the present invention has been made in view of the above problems, and it is possible to measure calories using near infrared rays, and measure the calories of an object by a nondestructive method.
- An object of the present invention is to provide a method for measuring the calorie of an object and an apparatus for measuring the calorie of an object which can be easily performed in time.
- the calorie measuring method of the present invention receives light from an object to be detected, measures the absorbance with respect to the wavelength in the near infrared region, and based on the measured value. To measure the calories of objects.
- the reflected light or transmitted light of the object force of the test object is received, the absorbance for the wavelength in the near infrared region is measured, and the power port of the object is measured based on this measurement value.
- a sample object whose calorie is known is irradiated with near infrared rays in advance, and the reflected light or transmitted light from the sample object is received, and the regression equation is calculated by multiple regression analysis of the second derivative spectrum in the absorbance of the received light.
- the object to be examined is irradiated with near-infrared light, and the reflected light from the object to be examined is transmitted!
- the transmitted light is received, and the absorbance of the received light is measured.
- object It is a method to calculate body calories.
- the regression equation described above is configured by an equation satisfying the relationship of the following general equation, with the absorbance of the first 1 n wavelength having a high correlation coefficient as a variable! .
- ⁇ is the wavelength
- A1 ( ⁇ 1) is the absorbance of the first wavelength ( ⁇ 1)
- ⁇ 2 ( ⁇ 2) is the second wavelength ( ⁇ 2)
- Absorbance ⁇ ⁇ ( ⁇ )) is the absorbance at the ⁇ wavelength ( ⁇ ⁇ )
- ⁇ 0, K 1 is the minimum value using the absorbance measured in a sufficiently large population and the measured calories It is a coefficient determined by the square method.
- the feature of the measuring method according to the present invention is that a wavelength range of near infrared rays attributed to the calorie of an object such as food is found, and the calorie is measured using the wavelength range. That is, multiple regression analysis with many subjects whose calories are already known by chemical analysis first determines the first wavelength with high correlation, and then the second- ⁇ wavelength with high correlation coefficient. Ask. Each wavelength is determined, for example, in a region showing a correlation coefficient of 0.80 or more, by multiple regression analysis using the absorbance value of the sample and the known calorie value by analysis of molecular weight. Even if these wavelength regions are used as a single wavelength, it is estimated that measurement of calories is possible if the range of standard error of calories is widely set. The accuracy can be improved by finding the second ⁇ ⁇ wavelength having a high correlation coefficient while performing the correction.
- the above regression equation is configured by an equation satisfying the relationship of the following equation 1 with the absorbance of the first wavelength and the absorbance of the second wavelength as the variables having a high correlation coefficient as variables. .
- C is a calorie (KcalZlOOg)
- ⁇ is a wavelength
- Al ( ⁇ 1) is a first wavelength
- ⁇ 2 ( ⁇ 2) is the absorbance of the second wavelength ( ⁇ 2)
- KO, Kl, and ⁇ 2 are determined by the least squares method using the absorbance measured in a sufficiently large population and the measured calories Coefficient.
- the feature of the measurement method according to the present invention is to find a wavelength range of near infrared rays attributable to the calorie of an object such as food and measure the calorie using the wavelength range. That is, first, the first wavelength with a high correlation coefficient was determined by multiple regression analysis with many subjects whose calories were already known by chemical analysis.
- the first wavelength ( ⁇ 1) is determined, for example, in a region where the correlation number is 0.800 or more, by multiple regression analysis based on the absorbance of the sample and the known calorie value by chemical analysis. Even if these wavelength regions are used as a single wavelength, it is estimated that calories can be measured if the range of the standard error of calories is widely set.
- the second wavelength with high correlation coefficient was determined.
- the determination of the second wavelength ( ⁇ 2) was performed using the wavelength of which the correlation coefficient showed a high value by multiple regression analysis with the region of the first wavelength ( ⁇ 1) selected above and the predetermined range.
- a high correlation of, for example, 0.960 or more can be obtained by the combination of the first wavelength ( ⁇ 1) and the second wavelength ( ⁇ 2), and calories with high accuracy can be measured.
- the specific wavelengths are listed below.
- the first wavelength ( ⁇ 1) is selected from the range of 1270 nm to 1306 nm
- the second wavelength (2) is selected from the range of 1188 to 1222 nm, 1660 nm to 1666 ⁇ , or 1714 nm to 1726 nm.
- the first wavelength ( ⁇ 1) was selected from the range of 1306 ⁇ 2 nm
- the second wavelength ( ⁇ 2) was also selected to the range power of 1192 ⁇ 2 nm.
- the first wavelength ( ⁇ 1) is selected from the range of 1352 nm-1388 nm
- the second wavelength (2) is 1210 minus 1222 nm, 1232 nm-1246 nm, 1642 nm-1684 ⁇ m, 1708 minus 1732 nm
- a range power of 1746 nm-1752 nm or 1786 nm-1796 nm was also selected.
- the first wavelength ( ⁇ 1) was selected from the range of 1360 ⁇ 2 nm
- the second wavelength ( ⁇ 2) was selected from the range of 1722 ⁇ 2 nm.
- the first wavelength ( ⁇ 1) is selected from the range of 1698 nm to 1740 nm
- the second wavelength (2) is 1146 to 1158 nm, 1398 nm to 1416, 1814 to 1 836 nm. Or it was selected from the range of 1886 nm-1888 nm.
- the first wavelength ( ⁇ 1 ) was selected from the range of 2 nm
- the second wavelength ( ⁇ 2) was selected from the range of 1404 ⁇ 2 nm.
- the first wavelength ( ⁇ 1) is selected from the range of 1806 nm to 1848 nm
- the second wavelength (2) is 1210 to 1222 nm, 1234 nm to 1242 °, 1336 to 1 352 nm, It was selected from the range of 1634 nm-1690 nm, or 1744 nm-1752 nm.
- the first wavelength ( ⁇ 1) was selected from the range of 1818 ⁇ 2 nm
- the second wavelength ( ⁇ 2) was selected from the range of 1346 nm and 2 nm.
- the present invention relates to the relationship of Formula 2 below, in which the above regression equation has as variables the absorbance of the first wavelength, the absorbance of the second wavelength, and the absorbance of the third wavelength, which have a high correlation coefficient with each other. It can be constructed by the formula that satisfies.
- Equation 2 ! /, C, calorie (KcalZlOOg), ⁇ is wavelength, A1 ( ⁇ 1) is absorbance of the first wavelength ( ⁇ 1), and ⁇ 2 ( ⁇ 2) is the second wavelength ( ⁇ ) The absorbance of 2), A3 ( ⁇ 3) is the absorbance of the third wavelength ( ⁇ 3), ⁇ , K1, ⁇ 2 and ⁇ 3 are the minimum two using the absorbance and actual calories measured in a sufficiently large population. It is a coefficient determined by multiplication.
- the third wavelength having a high correlation coefficient is determined.
- the determination of the third wavelength ( ⁇ 3) indicates that the region and the predetermined range of the first wavelength ( ⁇ 1) and the second wavelength ( ⁇ 2) selected above have high correlation coefficients by multiple regression analysis. It was done at the same wavelength.
- a high correlation of, for example, 0.980 or more can be obtained by the combination of the first wavelength ( ⁇ 1), the second wavelength ( ⁇ 2) and the third wavelength ( ⁇ 3), and calories with even higher accuracy can be obtained. It can be measured. Specific wavelengths are listed below.
- the first wavelength ( ⁇ 1) is selected from the range of 1270 nm to 1306 nm
- the second wavelength (2) is also in the range of 1188 to 1222 nm, 1660 nm to 1666 ⁇ , or 1714 nm to 1726
- the third wavelength ( ⁇ 3) was selected from the range of 1456 nm-1472 nm, 1574-1 580 nm, or 1816 nm-1826 nm.
- the first wavelength ( ⁇ 1) is selected from the range of 1306 ⁇ 2 nm
- the second wavelength ( ⁇ 2) is selected from the range of 1192 ⁇ 2 nm
- the third wavelength ( ⁇ 3) was also selected in the range of 1464 ⁇ 2 nm.
- the first wavelength ( ⁇ 1) is selected from the range of 1352 nm-1388 nm
- the second wavelength (2) is 1210-1222 nm, 1232 nm-1246 nm, 1642 nm-1684 ⁇ m, 1708-11732 nm , 1746 nm-1752 nm, or 1786 nm-1796 nm
- the third wavelength (3) is 1144 nm-1194 nm, 1252 nm-1320 nm, 1420 m m-1492 nm, 1504 nm-1524 nm, 1688 nm-1694 nm, or 1828 nm-1934 nm Range power was also selected.
- the first wavelength ( ⁇ 1) is also selected in the range of 1360 ⁇ 2 nm
- the second wavelength ( ⁇ 2) is also selected in the range of 1722 ⁇ 2 nm
- the third wavelength ( ⁇ 3) is Selected from the range of
- the first wavelength ( ⁇ 1) is selected from the range of 1698 nm to 1740 nm
- the second wavelength (2) is 1146 to 1158 nm, 1398 nm to 1416 °, 1814 to 1 836 nm
- the third wavelength ( ⁇ 3) was selected from the range of 1886 nm to 1888 nm
- the third wavelength ( ⁇ 3) was also selected in the range of 1146 nm to 1176 nm, 1256 nm to 1304 nm, 1350 nm to 1390 nm, 1406 nm to 1426 nm, 1548 to 1578 nm, or 1810 to 1966 nm.
- the first wavelength ( ⁇ 1) is selected from the range of 1726 nm
- the second wavelength ( ⁇ 2) is selected from the range of 1404 nm
- the third wavelength ( ⁇ 3) is in the range of 1832 ⁇ 2 nm. Force was also selected.
- the first wavelength ( ⁇ 1) is selected from the range of 1806 nm to 1848 nm
- the second wavelength (2) is 1210 to 1222 nm, 1234 nm to 1242 °, 1336 to 1 352 nm
- the third wavelength (3) was selected from the range of 1146 nm to 1188 nm, 1264 nm to 1320 nm, 1384 nm to 1394 nm, or 1708 nm to 1752 nm, selected from the range of 1634 nm to 1690 nm or 1744 nm to 1752 nm.
- the first wavelength ( ⁇ 1) is also selected in the range of 1818 ⁇ 2 nm
- the second wavelength ( ⁇ 2) is also selected in the range of 1346 ⁇ 2 nm
- the third wavelength ( ⁇ 3) is 1750 ⁇ 2 nm. Selected from the range.
- the first wavelength ( ⁇ 1) is selected from the range of 1702 nm to 1714 nm
- the second wavelength ( ⁇ 2) is also selected to the range power of 1398 nm to 1414 nm. 3) was selected from the range of 1736 nm-1744 nm.
- the first wavelength ( ⁇ 1) is selected from the range 1704 nm-1710 nm
- the second wavelength ( ⁇ 2) is selected from the range 1400 nm-1404 nm
- the third wavelength ( ⁇ 3) is 1736 nm-1740 nm. Selected from the range.
- the above regression equation can also be configured by an equation satisfying the relationship of the following equation 3 in which the absorbance of the first wavelength to the seventh wavelength having a high correlation coefficient is a variable.
- C is the calorie (Kcal / lOOg)
- ⁇ is the wavelength
- A1 ( ⁇ 1) is the absorbance of the first wavelength ( ⁇ 1)
- ⁇ 2 ( ⁇ 2) is the second wavelength ( ⁇ 2). 2)
- A3 ( ⁇ 3) is the absorbance of the third wavelength ( ⁇ 3)
- 4 ( ⁇ 4) is the absorbance of the fourth wavelength ( ⁇ 4)
- ⁇ 5 ( ⁇ 5) is the fifth wavelength ( ⁇ 5)
- absorbance of the seventh wavelength ( ⁇ 7) absorbance of the seventh wavelength ( ⁇ 7)
- ⁇ 1, ⁇ 2, ⁇ 3, ⁇ 3, ⁇ 4, ⁇ 5, 6 , ⁇ 7 are coefficients determined by the least squares method using the absorbance measured in a sufficiently large population and the measured calories.
- the first wavelength ( ⁇ 1) is also selected in the range of 1702 nm to 1714 nm
- the second wavelength ( ⁇ 2) is selected in the range of 1398 to 1414 nm
- the third wavelength ( ⁇ 3) is selected.
- the fourth wavelength ( ⁇ 4) is also selected in the range of 1180 nm-1212 nm
- the fifth wavelength ( ⁇ 5) is also selected in the range of 1242 nm-1276 nm
- the sixth wavelength ( ⁇ 4) is selected.
- 6) was selected in the range of 1574 nm-1606 nm
- the seventh wavelength ( ⁇ 7) was selected in the range of 1330 nm-1364 mm.
- the first wavelength ( ⁇ 1) is also selected in the range of 2 nm
- the second wavelength ( ⁇ 2) is selected in the range of 14 00 ⁇ 2 nm
- the third wavelength ( ⁇ 3) is 1738.
- the ⁇ 2 nm power is also selected
- the fourth wavelength ( ⁇ 4) is selected from the range of 2 nm
- the fifth wavelength ( ⁇ 5) is selected from the range of 1260 ⁇ 2 nm
- the sixth wavelength ( ⁇ 6) is 1590 ⁇ .
- the 2 nm power was also selected
- the seventh wavelength ( ⁇ 7) was selected from the range of 1348 ⁇ 2 nm.
- the apparatus for measuring calories of an object is an object to be examined.
- the / / is configured to include a light receiving unit that receives the transmission light, and a control unit that calculates the calorie of the object based on the absorbance of the light received by the light receiving unit.
- control unit is used to irradiate a sample object whose calorie is known in advance, and the second derivative spectrum of the absorbance for the wavelength of the near infrared region reflected or transmitted from the sample object.
- a regression calculation function for storing a regression equation calculated by multiple regression analysis, and a calorie calculation function for calculating the calorie of an object from the absorbance of the light received by the light receiving unit and the regression equation.
- the object holding unit is moved relative to the light source unit so that the light receiving unit can receive reflected light or transmitted light of a plurality of locations of the object, and the control unit
- the system is configured to have a function of calculating the calorie of an object based on the absorbance of light of a plurality of places received by the light receiving unit.
- the object holding unit is provided with a weight measuring instrument for measuring the weight of the object
- the control unit is configured to measure the force of the total weight of the object measured by the weight measuring instrument. It has a function to calculate the energy. In this way, since the weight of the object can be measured automatically, the calories of the entire object can be calculated immediately, without having to measure the weight separately.
- the light source unit includes an acousto-optic element that disperses light. In this way, spectroscopy can be ensured, and near infrared rays of the required wavelength can be reliably irradiated.
- the object holding unit includes a fan for removing water vapor from the object.
- the force is also steamed, and the force that blocks the passage of the irradiated near-infrared rays
- the steam is blown away by a fan, so the irradiated near-infrared rays are It reliably reaches the object, and it can be received reliably by the light receiving part, so that it is possible to reliably measure even the object that generates steam.
- control unit has a component amount calculation function of calculating the amount of each component of the object such as carbohydrate, protein and fat based on the absorbance of light received by the light receiving unit, and the component amount calculation function. It is configured to have a calorie calculation function of calculating the calorie of an object based on the calculated amount of each component of the object. This also makes it possible to measure the calorie of the object immediately.
- control unit stores a user identification function for identifying the user corresponding to one object involved in the calorie measurement, and a measured value of the calorie for each user identified by the user identification function.
- a measurement value storage function is provided, and a measurement value integration function that integrates the measurement values of calories stored in the measurement value storage function for each user.
- the method of measuring the calorie of an object and the apparatus for measuring the calorie of an object according to the present invention, light from the object to be detected is received, absorbance to a wavelength in the near infrared region is measured, and this measured value is Since the calories of objects are measured on the basis, calories of food can be measured nondestructively with good accuracy, which is extremely useful.
- FIG. 1 is a perspective view showing a device for measuring the calorie of an object according to an embodiment of the present invention.
- FIG. 2 is a perspective view of an essential part showing an object holding portion in the apparatus for measuring the calorie of an object according to an embodiment of the present invention.
- FIG. 3 is a perspective view of an essential part showing a light source part in the apparatus for measuring the calorie of an object according to an embodiment of the present invention.
- FIG. 4 is a view showing a light receiving unit in the calorie measuring device for an object according to the embodiment of the present invention, where (a) is a perspective view and (b) is a bottom view.
- FIG. 5 is a block diagram showing the configuration of a control unit in the calorie measuring apparatus for an object according to an embodiment of the present invention.
- FIG. 6 is a graph showing the correlation coefficient of near infrared light absorbance (second derivative) when the first wavelength is selected.
- FIG. 7 is a diagram showing a wavelength range showing high correlation with the first wavelength of the second wavelength when selecting the second wavelength.
- FIG. 8 is a diagram showing a wavelength range showing high correlation with the first wavelength of the second wavelength when selecting the second wavelength.
- FIG. 9 is a diagram showing a wavelength range showing high correlation with the first wavelength of the second wavelength when selecting the second wavelength.
- FIG. 10 is a diagram showing a wavelength range showing high correlation with the first wavelength of the second wavelength when the second wavelength is selected.
- FIG. 11 is a table showing wavelength ranges showing high correlation with the first and second wavelengths of the third wavelength when selecting the third wavelength.
- FIG. 12 is a table showing wavelength ranges showing high correlation with the first and second wavelengths of the third wavelength when selecting the third wavelength.
- Fig. 13 is a table showing a wavelength range showing high correlation when selecting a seventh wavelength.
- ⁇ 14 It is a flow chart showing a control flow in the device for measuring the calorie of an object according to the embodiment of the present invention.
- FIG. 15 A flow chart showing a detailed control flow in the device for measuring the calorie of an object according to an embodiment of the present invention.
- ⁇ 16] is a flowchart showing another detailed control flow in the device for measuring the calorie of an object according to an embodiment of the present invention.
- Fig. 17 is a graph showing the correlation between the calorie value measured at the calorie assignment wavelength of the present invention and sugar by chemical analysis.
- ⁇ 18 It is a graph showing the correlation between the calorie value measured at the calorie attribution wavelength of the present invention and a lipid by chemical analysis.
- Fig. 19 is a graph showing the correlation between the calorific value measured at the calorie attribution wavelength of the present invention and protein by chemical analysis.
- FIG. 20 is a graph showing the correlation between the calorie value measured at the calorie attribution wavelength of the present invention and the calorie value by chemical analysis.
- FIG. 21 is a table showing calorific values by chemical analysis of various foods as objects to which the present invention is applied.
- (23) A graph showing the correlation between the calorie value measured at three wavelengths of the calorie assignment of the present invention and the calorie value by chemical analysis.
- ⁇ 24 It is a table diagram showing the correspondence between the calorie value measured at 7 wavelengths of the calorie attribution of the present invention and the calorie value calculated by the 5 revision Japanese food standard composition table.
- FIG. 25 is a graph showing the correlation between the calorie value measured at seven wavelengths of the calorie assignment of the present invention and the calorie value calculated by the 5 revision Japanese food standard composition table.
- ⁇ 26 It is a graph showing the residual value between the calorie value measured at 7 wavelengths of the calorie attribution of the present invention and the calorie value calculated by the 5 th revision Japanese food standard composition table.
- FIG. 28 is a graph showing the correlation between the measured values of carbohydrates according to the device of the present invention and the amounts of sugars calculated using the 5th revision Japanese Food Standard Composition Table.
- Fig. 29 is a table chart showing the correspondence between the measured values of protein by the device of the present invention and the amounts of protein calculated using the 5th revision Japanese food standard composition table.
- Fig. 30 is a graph showing the correlation between the protein measurement value obtained by the device of the present invention and the amount of protein calculated using the 5th revision Japanese food standard composition table.
- ⁇ 31 It is a table diagram showing the correspondence between the measured value of fat by the device of the present invention and the fat amount calculated by the 5 th revision Japanese food standard composition table.
- Fig. 32 is a graph showing the correlation between the measured value of fat by the device of the present invention and the amount of fat calculated using the 5th revision Japanese food standard composition table.
- the caloric value calculated by multiplying the caloric value by measuring the calorific value measured at seven wavelengths of the calorie attribution of the present invention and the value measured individually for sugar, protein and fat by the caloric conversion coefficient It is a table figure showing correspondence with a calorie value computed by a table.
- ⁇ 34 It is a graph showing the correlation between the calorie value measured at seven wavelengths of the calorie attribution of the present invention and the calorie value calculated by multiplying the values of carbohydrate, protein and fat individually measured by the calorie conversion coefficient.
- the calorie value was calculated by multiplying the calorie value measured at 7 wavelengths of calorie attribution according to the present invention and the value obtained by individually measuring carbohydrates, proteins and fats by the calorie conversion coefficient, It is a table figure which shows the correlation coefficient with the calorie value calculated by the table.
- FIG. 6 is a chart showing the Derv-in-Watson ratio with the calorie value calculated by the table.
- Light source section Support plate Noge log lamp Communication port Opening lens barrel Drive motor Light chiyoppa Acousto-optic element Infrared reflection mirror, Cooling fan Light receiving part
- Light receiving element control unit 41 Signal amplification circuit
- An apparatus for measuring calories of an object measures calories of food as an object.
- the term “food” includes any food material itself, processed food, cooked food and the like as long as it is used for food.
- the apparatus for measuring calories of an object includes an object holding unit 1 having a rotation table 2 on which an object M to be detected is placed, and a rotation table 2
- the control unit 40 is provided with a general control arithmetic processing unit 43 that calculates the calorie of the object M based on the absorbance of the light received by the light receiving unit 30.
- the main part is stored in a dark room (not shown) so that the object M is not irradiated with light other than near-infrared rays from the light source unit 20.
- the object holding unit 1 is provided in a closed space that can be opened and closed by a door (not shown), and a rotation table 2 on which the object M is placed, and a rotation A rotary motor 3 for rotationally driving the table 2 in the T direction, an elevating table 6 rotatably supported on the column 5 by movably supporting the rotary motor 3 in the X direction in one direction through the groove 4 and the rotary motor 3 and an X-direction moving motor 7 for moving the rotary table 2 in the X direction by a mechanism such as a rack and a pinion, and a lift drive unit 8 for moving the lift table 6 up and down.
- a mechanism such as a rack and a pinion
- Lifting drive 8 a ball screw 8a in which the elevating table 6 is screwed up and down so that it can move up and down, and a Z direction drive motor 9 that moves the elevating table 6 up and down in the Z direction by rotating the ball screw 8a via the timing belt 8b. It is.
- a weight measuring instrument 10 for measuring the weight of the object M is attached to the rotary motor 3 of the object holding unit 1. If the object M is put into the tray 11, measure the weight of the tray 11 in advance, and subtract and compensate for it. This correction may be performed by the weight measuring instrument 10 itself or by the control unit 40 described later. As a result, since the weight calculation of the object M is accurate, the accuracy of the calorie measurement (calculation) becomes high.
- the weight measuring instrument 10 is connected to the elevating table 6, and the elevating table 6 can be moved in the direction of the arrow Z by rotating the ball screw 8a by the Z direction drive motor 9 via the timing belt 8b. Stable operation is possible by providing a guide of
- the object holding unit 1 is provided with a suction fan 12 for removing water vapor from the object M.
- the fan 12 is provided with a duct 13 for guiding the water vapor from the object M to the fan 12.
- the light source unit 20 includes a halogen lamp 22 as a light source installed on a support plate 21 provided on the support 5 and a support plate for light from the halogen lamp 22.
- 21 is provided at the communication port 23 on the upper side of the lens barrel 24.
- the light chipper 26 provided at the opening of the lens barrel 24 and rotated by the driving motor 25 is provided at the rear of the light chipper 26.
- a near infrared light from the acoustooptic device 27 provided in the communicating port 23 through the communicating port 23 and an infrared reflecting mirror 28 for irradiating the object M on the rotary table 2
- Reference numeral 29 denotes a cooling fan for cooling the halogen lamp 22.
- the light emitted from the halogen lamp 22 passes through the inside of the lens barrel with aperture 24 and the light motor 26 is rotated by the drive motor 25.
- the light power is split into light of a single wavelength shown by the dashed arrow, and only the single spectral light shown by the dashed arrow is bent downward perpendicularly to the optical axis by the infrared reflecting mirror 28. Connect The light not separated by the solid arrows goes straight, and the object M is not irradiated.
- the shape of the light chipper 26 may be any shape, but the response or It is better to have a mechanism to change 1. Omsec-1.6msec pulse according to the number processing circuit 42.
- the light receiving unit 30 is provided at equal intervals in the circumferential direction on the cylindrical main body 31 provided in the communication port 23 and the object M side surface of the main body 31.
- a plurality of light receiving elements 32 are provided. In the plurality of light receiving elements 32, light split into single wavelengths from the light source unit 20 passes through the hollow portion of the main body 31, is irradiated to the object M, and is scattered inside the object M. , Receive as reflected light.
- the light receiving element 32 is connected in series or in parallel to an electric circuit in the control unit 40 to perform signal processing.
- the entire signal processing is performed as follows. When the diffuse reflected light is detected by each light receiving element 32, it is converted into an electrical signal according to the intensity of the detected light.
- the electrical signal from the light receiving element 32 is transmitted to the control unit 40 shown in FIG.
- the control unit 40 amplifies the signal by the signal amplification circuit 41 and performs processing such as noise removal and amplification on the signal amplified by the signal processing circuit 42, regression memory function and calorie operation function. Calories are calculated by the integrated control arithmetic processing unit 43 provided with the
- the general control arithmetic processing unit 43 in the control unit 40 is realized by the function of a CPU or the like, and is irradiated in advance to the sample object M whose calorie is known, and near infrared rays reflected or transmitted from the sample object M.
- Regression memory function that stores regression equation calculated by multiple regression analysis of second derivative spectrum at the absorbance for the wavelength of the region, and absorbance of light received by the light receiving unit 30 and predetermined memory stored by the regression memory function
- a calorie calculation function to calculate the calories of the object M by the regression equation of
- reference numeral 44 denotes a display unit provided in the control unit 40, which can also be a CRT or the like.
- the data is displayed on the display unit 44.
- the display of the display unit 44 is operated by a screen operation unit (not shown), and can be switched as needed, such as an input screen and a result display screen.
- An animation etc. may be displayed during measurement.
- the measurement results may be displayed on the LCD panel. Also, the measurement results may be output as voice. Furthermore, an external data output interface may be provided.
- control unit 40 controls a motor control circuit 45 that controls various motors of the object holding unit 1 and a drive motor 25 of the light source unit 20, and a spectrum that controls the acoustooptic device 27.
- a control circuit 46 is provided.
- the general control arithmetic processing unit 43 of the control unit 40 has a function of calculating the calories of the object M based on the absorbances of the light of a plurality of places received by the light receiving unit 30. Here, at multiple locations, the calories per unit weight are calculated, and the average value is calculated. In addition, the general control arithmetic processing unit 43 has a function of calculating the calorie of the total weight of the object M measured by the weight measuring device 10. Here, the value is calculated by multiplying the calorie per unit weight by the total weight.
- the integrated control arithmetic processing unit 43 calculates the component amount for calculating the amount of each component of the object M such as carbohydrate, protein and fat based on the absorbance of the light received by the light receiving unit 30. Is equipped.
- the component amount calculation function is realized by the same means as the above-mentioned conventional one. That is, the near infrared light is irradiated to the object M, the reflected light from the object M is detected by the light receiving unit 30, and the near infrared absorption spectrum of the object M is measured.
- components such as fat, protein, starch (carbohydrate), iodine value, acid value and the like of the object M are measured by substituting the spectral power measured by the method into a calibration curve prepared in advance.
- the wavelength selection method for carbohydrates, proteins and fats narrows down the point where absorption in the negative direction appears in the spectrum waveform obtained by second derivative of absorbance, and the correlation at that time Selects the higher wavelength range, and the same for the second wavelength, and for the third and fourth wavelengths, the wavelength at which the overall correlation coefficient is high is increased by multiple regression analysis. Select using the method.
- the integrated control arithmetic processing unit 43 measures the user's calorie for each user identified by the user identification function identifying the user corresponding to one object M involved in the calorie measurement and the user identification function. It has a measured value storage function that stores values, and a measured value integration function that integrates measured values of calories stored in the measured value storage function for each user.
- the user identification function is functioned by a user-specified command from the command means 47 configured by a data input function such as a keyboard. Further, the measured value storage function is made to function by the measured value addition command from the command means 47.
- the combination of the regression equation stored by the regression equation storage function in the general control calculation processing unit 43 and the wavelength of the selected near infrared radiation is determined as follows. First, near-infrared rays are irradiated to the sample object M whose calories are known in advance using the above-mentioned apparatus, and reflected light or transmitted light of the sample object M is received, and the absorbance of the wavelength in the near-infrared region is received.
- the regression equation is calculated by multiple regression analysis of the second derivative spectrum in.
- the regression equation is expressed by Equation 1 below, in which the absorbance of the first wavelength and the absorbance of the second wavelength having high correlation coefficients are variables.
- C C is calorie (KcalZlOOg)
- ⁇ wavelength
- A1 ( ⁇ 1) absorbance of the first wavelength ( ⁇ 1)
- ⁇ 2 ( ⁇ 2) is the second wavelength ( ⁇ )
- ⁇ , K1, ⁇ 2 are coefficients determined by the least squares method using the absorbance measured in a sufficiently large population and the measured calories.
- the calorie by chemical analysis was already known, and it was determined by multiple regression analysis with 85 subjects. That is, the first wavelength ( ⁇ 1) shows a negative correlation by the multiple regression analysis based on the absorbance of the sample and the known calorie value according to the characterization analysis, and even in the region where the correlation coefficient shows 0.80 or more It was decided.
- Figure 6 shows the results of single correlations obtained by second-order differentiation.
- the first wavelength ( ⁇ ⁇ ) is 1270 nm to 1306 nm (maximum 1284 nm, multiple correlation coefficient 0.891), 1 352 to 1388 nm (maximum 1370 nm, multiple correlation coefficient-0. 928), 1562 nm to 1614 nm (maximum 1578 nm , Multiple correlation coefficient-0. 901), 1698-1740 nm (maximum 1700-, heavy phase relation-0. 818), 1806-1848 nm (maximum 1818 nm, multiple correlation coefficient-0. 953) force S selection it can.
- determination of the second wavelength ( ⁇ 2) is performed by multiple regression analysis of the selected first wavelength ( ⁇ 1) region and l lOOnm-2000 nm range, and the wavelength showing a high correlation coefficient value I did it with Figures 7, 8, 9, and 10 show the wavelength ranges that show high correlation with their first wavelength ( ⁇ 1). Details will be described below.
- the first wavelength ( ⁇ 1) is selected from the range of 1270 nm to 1306 nm
- the second wavelength (2) is selected from the range of 1188 to 1222 nm, 1660 nm to 1666 ⁇ , or 1714 nm to 1726 nm.
- the first wavelength ( ⁇ 1) was selected from the range of 1306 ⁇ 2 nm
- the second wavelength ( ⁇ 2) was also selected to the range power of 1192 ⁇ 2 nm.
- the wavelength range of the second wavelength ( ⁇ 2) having a first relative wavelength of 1270 nm to 1306 nm and a relative wavelength of 0.960 or more is 1188 nm to 1222 nm, as shown in FIG. 1660 nm-1666 nm, and 1714 nm-1726 nm.
- the correlation coefficient was classified into a range of 0.90 or less and 0.90500-0.9599, 0. 96000-0.9699, and 0. 9700-0. 9799, and they were compared and compared.
- the first wavelength ( ⁇ 1) is selected from the range of 1352 nm ⁇ 1388 nm
- the second wavelength (2) is 1210 ⁇ 1, 1222 nm, 1232 nm ⁇ 1246, 1642 1 1
- a range of 684 nm, 1708 nm-1732 nm, 1746 nm-1752, or 1786-1768 nm power was selected.
- the first wavelength ( ⁇ 1) was selected in the range of 1360 ⁇ 2 nm
- the second wavelength ( ⁇ 2) was selected from the range of 1722 nm.
- the wavelength range of the second wavelength ( ⁇ 2) which exhibited a correlation coefficient of 0.90 or more with the first wavelength ( ⁇ 1) of 1352 nm ⁇ 1388 nm is 1210 nm ⁇ 1222 nm, 1232 nm — 1246 nm, 1642 nm— 1684 nm, 170832 1732 nm, 1746 nm— 1752 nm, and 178 6 nm— 1796 nm.
- the correlation coefficient range of 0.90 or less and 0.900-0.9599, 0. 96000-0.9699 and 0. 9700-0. 9799 were classified and compared, and the correlation of 0. 970 or more was obtained.
- the highest correlation coefficient of 0.9797 at the combination of the first wavelength ( ⁇ 1) and the second wavelength ( ⁇ 2) is 1360 nm for the first wavelength ( ⁇ 1) and 1722 nm for the second wavelength ( ⁇ 2).
- the calorie value and the calorie value of chemical analysis according to the method and apparatus of the present invention (366. 467) + (-2103. 557)-d 2 Al ( ⁇ l) / d 2 + (-1243. 905) ⁇ d 2 A 2 ( ⁇ 2) / ⁇ ⁇ 2 .
- the first wavelength ( ⁇ 1) is selected from the range of 1698 nm to 1740 nm
- the second wavelength (2) is 1146 nm to 1158 nm, 1398 nm to 1416 nm, 1814 nm to 1836 nm, or It was selected from the range of 1886 nm-1888 nm.
- the first wavelength ( ⁇ 1) was selected from the range of 1726 ⁇ 2 nm
- the second wavelength ( ⁇ 2) was selected from the range of 1404 ⁇ 2 nm.
- the wavelength range of the second wavelength ( ⁇ 2) that exhibited a correlation coefficient of 0.198 or more with the first wavelength ( ⁇ 1) of 1698 nm to 1740 nm was 1146 nm to 1158 nm, 1398 nm. -1416 nm, 1814 nm-1736 nm, and 1886-1888 nm.
- the correlation coefficient range of 0.90 or less and 0.900-0.9599, 0. 96000-0.9699 and 0. 9700-0. 9799 were classified and compared. It is contemplated that calories can be measured with the combination of the first wavelength ( ⁇ 1) and the second wavelength ( ⁇ 2) recognized.
- the first wavelength ( ⁇ 1) is selected in the range of 1806 nm-1848 nm
- the second wavelength (2) is 1210 nm-1222 nm, 1234 nm-1242 nm, 1336 m m-1352 nm, 1634 nm- A range power of 1690 nm or 1744 nm-1752 nm was also selected.
- the first wavelength ( ⁇ 1) was selected in the range of 1818 ⁇ 2 nm
- the second wavelength ( ⁇ 2) was selected from the range of 1 346 nm to 2 nm.
- the wavelength range of the second wavelength ( ⁇ 2) which exhibited a correlation coefficient of 0.106 or more with the first wavelength ( ⁇ 1) of 1806 nm to 1848 nm is 1210 nm to 1222 nm, 1234 nm — 1242 nm, 1336 nm-1352 nm, 1634 nm-1690 nm, and 1744 nm-1752 nm.
- the correlation coefficient range of 0.90 or less and 0. 9500-0. 9 599, 0. 9600-0. 9699 and 0. 9700-0. 9799 were classified, and it was examined. It is considered that calories can be measured with a combination of recognized first wavelength ( ⁇ 1) and second wavelength ( ⁇ 2).
- C are calories (KcalZlOOg)
- ⁇ is a wavelength
- A1 ( ⁇ 1) is an absorbance of a first wavelength ( ⁇ 1)
- ⁇ 2 ( ⁇ 2) is a second wavelength ( ⁇ )
- A3 ( ⁇ 3) is the absorbance of the third wavelength ( ⁇ 3)
- ⁇ , K1, ⁇ 2 and ⁇ 3 are the minimum two using the absorbance and actual calories measured in a sufficiently large population. It is a coefficient determined by multiplication.
- FIG. 11 shows the results of the determination of the wavelength of the third wavelength ( ⁇ 3) by the multiple regression analysis for the high correlation coefficient.
- FIG. 3 Three wavelengths ( ⁇ 3) were obtained. Specific wavelengths are listed below.
- the first wavelength ( ⁇ 1) is selected from the range of 1270 nm to 1306 nm
- the second wavelength (2) is also in the range of 1188 to 1222 nm, 1660 nm to 1666 17, or 1714 nm to 1726 ⁇ .
- the third wavelength ( ⁇ 3) was selected from the range of 1456 nm-1472 nm, 1574-1 580 nm, or 1816 nm-1826 nm.
- the first wavelength ( ⁇ 1 ) was selected from the range of 1306 ⁇ 2 nm
- the second wavelength ( ⁇ 2) was selected from the range of 1192 ⁇ 2 nm
- the third wavelength ( ⁇ 3) was also selected in the range of 1464 ⁇ 2 nm.
- the first wavelength ( ⁇ 1) is selected from the range of 1352 nm ⁇ 1388 nm
- the second wavelength (2) is 1210 ⁇ 1, 1222 nm, 1232 nm ⁇ 1246 nm, 1642 nm ⁇ 1684 mm, 1708 ⁇ 1 1732 nm , 1746 nm-1752 nm, or 1786 nm-1796 nm
- the third wavelength (3) is 1144 nm-1194 nm, 1252 nm-1320 nm, 1420 m m-1492 nm, 1504 nm-1524 nm, 1688 nm-1694 nm, or 1828 nm-1934 nm Range power was also selected.
- the first wavelength ( ⁇ 1) is also selected in the range of 1360 ⁇ 2 nm
- the second wavelength ( ⁇ 2) is also selected in the range of 1722 ⁇ 2 nm
- the third wavelength ( ⁇ 3) is selected as 1272 ⁇ 2 nm. Selected from the range of
- the first wavelength ( ⁇ 1) is selected from the range of 1698 nm to 1740 nm
- the second wavelength (2) is 1146 to 1158 nm, 1398 nm to 1416, 1814 to 1 836 nm
- the third wavelength ( ⁇ 3) was selected from the range of 1886 nm to 1888 nm
- the third wavelength ( ⁇ 3) was also selected in the range of 1146 nm to 1176 nm, 1256 nm to 1304 nm, 1350 nm to 1390 nm, 1406 nm to 1426 nm, 1548 to 1578 nm, or 1810 to 1966 nm.
- the first wavelength ( ⁇ 1) is selected from the range of 1726 nm
- the second wavelength ( ⁇ 2) is selected from the range of 1404 nm
- the third wavelength ( ⁇ 3) is in the range of 1832 ⁇ 2 nm. Force was also selected.
- the first wavelength ( ⁇ 1) is selected in the range of 1806 nm to 1848 nm
- the second wavelength (2) is 1210 nm to 1222 nm, 1234 nm to 1242 nm, 1336 m m ⁇ 1352 nm, 1634 nm
- a range power of 1690 nm, or 1744 nm-1752 nm was also selected
- the third wavelength (3) was selected from the range of 1146-1188 nm, 1264 nm-1320 nm, 1384-1 1394 nm, or 1708 nm-1752 nm.
- the first wavelength ( ⁇ 1) is also selected in the range of 1 818 ⁇ 2 nm
- the second wavelength ( ⁇ 2) is also selected in the range of 1346 ⁇ 2 nm
- the third wavelength ( ⁇ 3) is 1750 nm at 2 nm. Selected from the range.
- the first wavelength ( ⁇ 1) from the range of 1702 nm-1714 nm
- the second wavelength ( ⁇ 2) from the range of 1398 nm-1414 nm
- the third wavelength ( ⁇ 3) from 1736 nm-1744 nm.
- Range force was also selected.
- the first wavelength ( ⁇ 1) is also selected in the range of 1704 nm to 1710 nm.
- the second wavelength (or 2) was selected in the range of 1400 nm to 1404 nm
- the third wavelength (or 3) was selected in the range of 1736 nm to 1744 nm.
- the first wavelength ( ⁇ ) is 1702 nm-1714 nm
- the second wavelength ( ⁇ 2) is 1398 nm-1714 nm
- the third wavelength ( ⁇ 3) is 1736 nm-1744 nm.
- the relative relation number becomes 0. 9788-0. 9826
- the first wavelength ( ⁇ 1) is 1704 nm-1710 nm
- the second wavelength (or 2) is 1400 nm-1404 mm
- the third wavelength ( ⁇ 3) is 1736 nm-1740 nm
- the correlation coefficient is 0. It showed around 9826. Therefore, it is possible to further improve the calorie measurement accuracy by measuring at these three wavelengths.
- Still another regression equation is configured by an equation satisfying the relationship of the following equation 3 in which the absorbance of the first wavelength to the seventh wavelength having a high correlation coefficient is a variable.
- C is a calorie (KcalZlOOg)
- ⁇ is a wavelength
- A1 ( ⁇ 1) is an absorbance of a first wavelength ( ⁇ 1)
- ⁇ 2 ( ⁇ 2) is an absorbance of a second wavelength ( ⁇ 2)
- A3 ( ⁇ 3) is the absorbance of the third wavelength ( ⁇ 3)
- ⁇ 4 ( ⁇ 4) is the absorbance of the fourth wavelength ( ⁇ 4)
- ⁇ 5 ( ⁇ 5) is the absorbance of the fifth wavelength ( ⁇ 5)
- ⁇ 6 ( ⁇ 6) is the absorbance at the sixth wavelength ( ⁇ 6)
- ⁇ 7 ( ⁇ 7) is the absorbance at the seventh wavelength ( ⁇ 7)
- ⁇ , 1,1, ⁇ 2, ⁇ 3, ⁇ 4, ⁇ 5, ⁇ 6, ⁇ 7 are sufficient It is a coefficient determined by the least squares method using absorbance and measured calories in a large population.
- the first to seventh wavelengths were determined as follows. Based on the results shown in FIG. 13, as one combination, the first wavelength ( ⁇ 1) is selected from the range of 1702 nm to 1714 nm, and the second wavelength ( ⁇ 2) is selected in the range of 1398 nm to 1414 nm. 17 wavelengths ( ⁇ 3) The fourth wavelength ( ⁇ 4) is also selected from the range of 1180 nm to 1212 nm, and the fifth wavelength ( ⁇ 5) is selected from the range of 1242 nm to 1276 nm, and the sixth wavelength ( ⁇ 6) is selected. Was selected in the range of 1574 nm-1606 nm, and the seventh wavelength ( ⁇ 7) was selected in the range of 1330 nm-1364 mm.
- the first wavelength ( ⁇ 1) is also selected in the range of 1704 ⁇ 2 nm
- the second wavelength ( ⁇ 2) is selected in the range of 14 00 ⁇ 2 nm
- the third wavelength ( ⁇ 3) is 1738.
- the ⁇ 2 nm power is also selected
- the fourth wavelength ( ⁇ 4) is selected from the range of 2 nm
- the fifth wavelength ( ⁇ 5) is selected from the range of 1260 ⁇ 2 nm
- the sixth wavelength ( ⁇ 6) is 1590 ⁇ .
- the 2 nm power was also selected
- the seventh wavelength ( ⁇ 7) was selected from the range of 1348 ⁇ 2 nm.
- the characteristics of the assigned wavelength and the absorbance of carbohydrates, proteins, lipids and water in the food were compared, and the wavelength interval was set to 30 nm or more to select the calorie value.
- the coefficients were determined so that the measured value of each selected wavelength satisfied a certain vector, and the overall correlation coefficient at that time was the maximum value. Finally, the correction equation is calculated, and the value obtained from the calibration equation is corrected.
- the object M which is the food to be tested whose calorie is to be measured, is placed on the rotating table 2 with the door opened and placed on the plate 11 which has been weighed in advance (1-1).
- the identification routine is entered to identify the user (12).
- the identification routine as shown in FIG. 15, first, for example, a name or the like is inputted from the command means (2-1). As a result, the user is registered and stored, and if the user is already registered, the data of the corresponding user is called (2-2), and the accumulated data described later is displayed (2-3). If the data is erased (2-4 YES), the accumulated data is erased (2-5), zero display is performed (2-6), and the identification routine is ended. If the data is not erased (2-4), the identification routine is ended as it is. Returning to FIG. 14, after completion of the identification routine, it is confirmed whether the door is closed (13, 1-4). If the door is closed (1-3), the measurement routine is entered (1- Five).
- the weight of the object is measured by the weight measuring instrument 10.
- the weight of the plate 11 is measured in advance and corrected by subtracting that amount. This correction may be performed by the weight measuring instrument 10 itself or by the control unit 40 described later.
- the control unit 40 the total weight including the plate 11 is measured by the weight measuring instrument 10, and the weight of the total weight plate 11 is subtracted in the control unit 40. This measures the net weight of the object M.
- the lift table 6 is raised to a predetermined position by the Z direction drive motor 9 and the ball screw 8a (3-1). Adjust according to the height (size) of the object M. Even if it does not move in the vertical height direction, measurement is possible.
- the object M may be a flat plate such as fried egg, for example, but when the object M is, for example, cut watermelon or fruit, the height direction is different, the adjustment in the height direction can be performed. Therefore, the measurement accuracy can be significantly improved.
- the rotary table 2 is rotationally driven in the T direction (3-2) and scanned (3-3).
- the wavelength is switched at a predetermined timing (3-4), and the light receiving sensor detects light (3-5) o That is, the light having a peak near the wavelength 1300 nm from the halogen lamp 22 which is the light source unit 20
- the light chopper 26 is rotated by the drive motor 25 to become pulsed light and enters the acousto-optic element 27.
- the acousto-optic element 27 splits the wavelength of the near infrared region of lOOnm-2000 mm with a resolution of 2nm, and only the split light is irradiated to the object M by the infrared reflective mirror 28.
- multipoint measurement of the object M is performed.
- the object M is moved by a combination of driving of the X-direction moving motor 7 and the driving of the rotary motor 3 to measure multiple points.
- the object M is a food composed of various materials such as curry and rice
- the method of irradiating near infrared rays only to a part of the object M can only obtain the calorie information at one location.
- the above-mentioned curry rice carrots, potatoes, meats and the like are mixed, and there may be cases where true calorie information of the food can not be obtained. Therefore, we The information of all materials can be obtained and averaged. Therefore, if the food material is single, scanning is not always necessary, but it will be extremely useful if it is mixed.
- the fan 12 is driven to remove the water vapor from the object M.
- the passage of the irradiated near infrared rays is not blocked by the vapor, and the irradiated near infrared rays reliably reach the object M.
- the diffused light reflected from the object M is also reliably received by the light receiving unit 30, and the measurement can be performed reliably even with the object M under the condition where steam is released.
- the diffuse reflection light from the object M is detected by the light receiving element 32 and transmitted to the control unit 40 through the control wiring (3-6) o such as Use (3-3-3-6) Repeat the wavelength range until the entire object is scanned.
- the transmitted signal is subjected to noise removal by the control unit 40, and the integrated control calculation processing unit 43 performs the calculation processing in the regression equation (3-7, 3-8) o That is, the absorbance of the object M is determined The obtained absorbance is secondarily differentiated, and the calorie is calculated by the regression equation using a predetermined calorie attribution wavelength. Further, the calorie value for the total weight of the object M is calculated by the result of the weight measuring instrument 10.
- the calculation result is displayed on the display unit 44 (Fig. 14, 1-6) o
- the calories of the object M are calculated based on the absorbance of the light of the plurality of points received by the light receiving unit 30, the calorie values of the plurality of points can be averaged, and a more accurate measurement can be obtained. it can. For example, if the distribution of foodstuffs differs depending on the measurement location, as in processed foods, the variation in measurement location will be averaged, so the accuracy of the calorie value will be improved. Furthermore, since the calories of the total weight of the object M measured by the weight measuring device 10 are calculated, the calories of the entire object M can be calculated immediately without separately measuring the weight of the object M.
- the component M such as carbohydrates, proteins and fats of the object M is obtained based on the absorbance of the light received by the light receiving unit 30 by the component amount calculation function of the general control arithmetic processing unit 43.
- the amount of each component of is calculated.
- the object M is irradiated with near infrared light for component amount, the near infrared absorption spectrum of the object M is measured, and the measurement value is substituted into a calibration curve prepared in advance. Then, as shown in FIG. 16, the rotation of the rotary table 2 is stopped (3-9), the lift table 6 is lowered (3-10), and the measurement routine is ended.
- the process returns to FIG. 14, and the calculation result is displayed on the display unit 44 (16). Since each component amount can also be recognized, the object M can be reliably grasped. This is useful when calculating not only calories but also other intakes. For example, if fat is removed with boiling water, etc. during cooking, how much fat can be removed is known, so the adjustment of the target calorie to be obtained is calculated based on the ratio of cooking or blending. It is a useful function, such as being able to do this.
- the command means sends a measurement addition command (19 YES).
- the measured values are added, the result is displayed (1-10), and stored as a single meal (1-11, 1-12), and the process ends.
- the measurement value addition command is not sent (1-9 NO)
- the result is recorded and the process ends. In this case, it becomes possible to grasp the total value of the calories of various foods ingested by the user, such as the total calories of one meal, and it can be applied to health management etc. and is extremely useful.
- the calorie measurement wavelength described above is specific to the calorie of the object M.
- the correlation coefficient was calculated between the calorific value measured at the above wavelength and the sugar, fat, and protein contents by chemical analysis and the calorific value.
- the results are shown in FIG. 17 (correlation of carbohydrates), FIG. 18 (correlation of lipids), FIG. 19 (correlation of proteins), and FIG. 20 (correlation of calories). From these results, the following can be understood.
- Calorie measurement values using the attributed wavelength according to the present invention have a correlation coefficient of 0.979 (Fig. 20) with calorie value by chemical analysis (Fig. 20), sugar with 0.8.
- the 780 (Fig. 18) and the protein were 0.029 (Fig. 19). That is, it showed the highest correlation with the calorie value by chemical analysis.
- the calories of food and food materials are calculated by multiplying the amount of each component of sugar, fat and protein and the conversion factor of each. If the measurement wavelength and method according to the present invention measure specific components and convert them into calories, sugar, fat and protein The highest correlation to the content of each component is shown, and the correlation to the calorie value is higher than the correlation to the force and the content.
- the measurement wavelength according to the present invention generally indicates the content of each of sugar, fat and protein necessary for calculating calories of food and food, and detects functional groups that can reflect calories. It is judged that
- Example 2-2 an experiment to prove that the above-mentioned wavelength is a dominant attribution wavelength for measuring calories, and also that it is possible to measure calories easily, quickly and accurately by this device (Experimental example 2-1, experiment)
- Example 2-2 was performed.
- the sample used in this experiment is a food whose strength value is known by chemical analysis.
- the sample and the calorie value by chemical analysis are shown in Figure 21.
- FIG. 24 shows the types of samples used above, the calorific value measured using the method and apparatus according to the present invention, and the calorific value calculated according to the 5-rev. Japanese food standard composition table.
- FIG. 25 is a correlation diagram between the calorie value measured by the method and apparatus of the present invention shown in FIG. 24 and the calorie value calculated by the 5 th revision Japanese Food Standard Composition Table.
- FIG. 26 shows the residual value of the calorie value measured by the method and apparatus of the present invention and the calorie value calculated by the 5th revision Japanese food standard composition table.
- the present inventor has repeatedly researched on a regression equation and apparatus for obtaining a wavelength range and a calorific value for measuring the calorie, and the wavelength range of the near infrared radiation capable of measuring the calorie of general food and the regression. I got the formula.
- FIG. 27 shows the amounts of sugars according to the sample used in this experiment and the 5th revision Japanese food standard composition table, and the amounts of sugars measured using the method and apparatus for measuring sugars according to the present invention.
- FIG. 28 shows a correlation diagram between the sugar mass according to the 5th revision Japanese food standard composition table and the sugar mass measured using the method and apparatus for measuring carbohydrate according to the present invention, and used in this experiment
- the wavelengths and the regression equation (abbreviated form) are shown in the figure.
- Figure 29 shows the names of samples used in this experiment, the protein mass according to the 5th revision Japanese food standard composition table, and the measured values of the protein according to the present invention.
- FIG. 30 shows the correlation between the amount of protein according to the 5th revision Japanese food standard composition table and the measured value of the protein according to the present invention, the wavelength used in this experiment, and the regression equation (abbreviated form) Is shown in the figure.
- the amount of protein measured using the method and apparatus for measuring a protein according to the present invention closely corresponds to the amount of protein according to the 5th revision Japanese food standard composition table . Therefore, according to the present invention, it can be seen that the amount of protein can be measured accurately and easily.
- FIG. 31 shows the names of samples used in this experiment, the amounts of fat according to the 5th revision Japanese food standard composition table, and the measured values of the lipid according to the present invention.
- FIG. 32 is a diagram showing the correlation between the lipid amount according to the 5th revision Japanese food standard composition table and the measurement value of the lipid according to the present invention, the wavelength used in this experiment, and the regression equation (abbreviated form). Shown in.
- FIG. 33 shows the sample name used in this experiment, the calorie value calculated by multiplying the calorie conversion factor by measuring the amounts of each component of carbohydrate, protein and fat, and seven wavelengths. Indicates the correspondence between the calorie value calculated by the power value and the 5th revision Japanese food standard composition table
- FIG. 34 is a correlation diagram of the calorie value calculated by multiplying the calorie conversion count by measuring the amount of each component of carbohydrate, protein and fat with this device and the calorie value when using 7 wavelengths. It is. At this time, the correlation coefficient was 0. 9902, the standard error 23. 8468, the determination coefficient 23. 8468, and the Darwin-Watson ratio 1. 8277. From this, each component of carbohydrate, protein and fat is measured by this device, and the correspondence between the calorie value calculated by multiplying the calorie conversion count and the calorie measurement value according to the present invention described above is extremely good. Can be seen.
- FIG. 35 shows the calorie value calculated by measuring the amount of each component of carbohydrate, protein and fat by the present device and multiplying by the calorie conversion factor, and the calorie calculated by the 5th revision Japanese food standard composition table It is a correlation diagram with a value. At this time, the correlation coefficient was 0.9780, the standard error was 35.5683, the determination coefficient was 0.9565, and the Davein-Watson ratio was 1.6381. This is also an extremely good correspondence between the calorific value calculated by measuring the amount of each component of carbohydrate, protein and fat in this device and multiplying it by the calorie conversion count and the caloric value calculated by the 5th revision Japanese food standard composition table It is a half lj.
- 36 and 37 show the results obtained in this experiment, that is, the amounts of each component of carbohydrate, protein and fat measured using four wavelengths are multiplied by the calorie conversion coefficient to calculate The relative correlation coefficient between the caloric value, the caloric value when using 7 wavelengths, and the caloric value calculated according to the five-edition Japanese food standard composition table and the derv-in-watson ratio are shown. From these results, it was shown in this experiment that calories can be calculated by measuring the amount of each component of carbohydrate, protein and lipid, with good correlation with each calorie value as well as good Dave In Watson ratio. It is a thing.
- the light source of the light source unit 20 is not limited to the halogen lamp 22 but any white light source, laser light or LED light may be used as long as it emits near infrared light. good.
- the light spectrum may be anything other than the acousto-optic element 27 as long as it can select a specific wavelength of the diffraction grating or near-infrared light.
- a mechanism for example, a mirror that scans not only in the X direction but also in the Y direction, it is possible to measure the calories of the single layer object M with high accuracy. In this case, the rotation mechanism may not be necessary, but the rotation mechanism can measure calories with high accuracy.
- the rotary motor 3, the X direction movement motor 7 and the Z direction drive motor 9 can be driven in tandem so that the measurement of the object M can always be performed on a plane. It is desirable to do so. This will significantly improve the measurement accuracy. For example, if it can be controlled so that it can move up and down by one spot at a time in microns or a few centimeters, the measurement will always be a mechanism implemented on a plane, thereby achieving a significant improvement in measurement accuracy.
- the weight measuring device 10 may not be provided, but in order to finally calculate the calories, it is necessary to calculate the weight. It is desirable to have one. Also, the number of light receiving elements 32 of the light receiving unit 30 can be one. If the force is three or more, calories can be measured with higher accuracy. As the light receiving element 32, one having sensitivity in the near infrared wavelength region is used. In this case, the light receiving element 32 is connected in series or in parallel to the signal amplification circuit 41 in the control unit 40 to perform signal processing.
- the reflected light from the object is measured.
- the transmitted light may be received and measured. Even in the case of an individual, of course, it may be measured by receiving transmitted light.
- the unit of calorie C is KcalZlOOg in the regression equation according to the above embodiment, the unit of calorie C is not limited to this, as long as it is a formula that satisfies the relationship of the presented equation. How to set it is OK!
- control unit calculates the amount of each component of the object such as carbohydrate, protein and fat based on the absorbance of the light received by the light receiving unit. It is good also as composition provided with the calorie calculation function which calculates the calorie of an object based on each ingredient quantity of the object which the ingredient quantity calculation function computed.
- the measurement result is added by pressing a specific switch, and the total food measurement value is calculated and displayed. This makes it possible to measure intake per period, such as one day or one week.
- the present invention provides near-infrared calorie attribution wavelengths and calorie calculation coefficients, which are extremely important element technologies for measuring calories of food etc., and uses these attribution wavelengths to measure rice, wheat, etc. It is an object of the present invention to provide an apparatus for measuring calories in various foods such as grains, confectionery, vegetables, fish shellfish, meats and prepared foods easily and quickly with high accuracy.
- the object is not limited to food, and can be applied to materials such as wood and calories such as fuel, etc.
- the application fields are diverse and extremely useful in industry.
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Abstract
Description
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Priority Applications (4)
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CA2559590A CA2559590C (en) | 2004-03-12 | 2005-03-10 | Method of measuring calorie of object and device of measuring calorie of object |
EP05720493A EP1724566A4 (en) | 2004-03-12 | 2005-03-10 | METHOD FOR MEASURING THE CALORIES OF AN OBJECT AND DEVICE FOR MEASURING THE CALORIES OF AN OBJECT |
US10/592,055 US8808628B2 (en) | 2004-03-12 | 2005-03-10 | Device for measuring calories of food items based on near-infrared optical measurements using a plurality of light sources |
KR1020067017691A KR101226782B1 (ko) | 2004-03-12 | 2005-03-10 | 물체의 칼로리 측정방법 및 물체의 칼로리 측정장치 |
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US (1) | US8808628B2 (ja) |
EP (1) | EP1724566A4 (ja) |
KR (1) | KR101226782B1 (ja) |
CN (1) | CN100559161C (ja) |
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WO2006046197A1 (en) * | 2004-10-27 | 2006-05-04 | Philips Intellectual Property & Standards Gmbh | Device and method for determining the calorie content of an object |
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Also Published As
Publication number | Publication date |
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CA2559590C (en) | 2014-06-10 |
TWI358535B (ja) | 2012-02-21 |
TW200532174A (en) | 2005-10-01 |
EP1724566A4 (en) | 2011-04-06 |
CN1930465A (zh) | 2007-03-14 |
US8808628B2 (en) | 2014-08-19 |
KR20060122941A (ko) | 2006-11-30 |
CN100559161C (zh) | 2009-11-11 |
US20070218174A1 (en) | 2007-09-20 |
KR101226782B1 (ko) | 2013-01-25 |
CA2559590A1 (en) | 2005-09-22 |
EP1724566A1 (en) | 2006-11-22 |
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