JP2015210179A - Processed food identification device and processed food identification method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a processed food identification device and a processed food identification method capable of accurately identifying a processed food without requiring contents thereof to be checked by actually cutting the same.SOLUTION: A processed food identification device which identifies a processed food under inspection comprises at least: a light source which irradiates the processed food under inspection to be an identification object with measuring light; a transmitted light receiving section which receives transmitted light transmitting through the processed food under inspection when the same is irradiated with the measuring light emitted from the light source; and identification means which identifies the processed food under inspection. The identification means preliminarily generates and stores first reference data on a reference processed food on the basis of light quantity data of the transmitted light of the reference processed food. Then, the identification means: generates first measurement data on the processed food under inspection on the basis of the light quantity data of the transmitted light of the processed food under inspection received by the transmitted light receiving section when the same is irradiated with the measuring light emitted from the light source; and identifies the processed food under inspection on the basis of the first reference data on the reference processed food and the first measurement data on the processed food under inspection.

Description

  The present invention relates to a processed food identification apparatus and a processed food identification for identifying whether or not a processed food to be identified is a desired processed food, or specifically which processed food is to be identified. Regarding the method.

  Conventionally, when processing processed foods such as bread, confectionery, frozen foods, etc., when checking whether or not a desired product has been manufactured correctly, a visual check by a human or an image check by an imaging device Etc. are done.

Such a check is very important for the purpose of preventing the outflow of erroneous products to the market, maintaining the reliability of the manufacturer, and ensuring the safety of food.
In particular, the image check is an effective method because it can surely confirm a large amount of products in a production line where mass production is performed.

  By the way, among such processed foods, for example, there are many products such as jam bread, bun, cream bread, etc., although the contents of the products are actually different but cannot be distinguished by appearance or weight.

  In the case of such processed foods, the visual check and image check that have been performed in the past do not perform the check function, so a sampling check is performed to check part of the processed food and break the contents. It was something that was not satisfactorily checked.

  Furthermore, since such a sampling check is actually broken to check the contents, it is not a sale as a product after the check, it is a very expensive check method, and there was a need for a further check method It is a fact.

  In view of such a current situation, an object of the present invention is to provide a processed food identification apparatus and a processed food identification method that do not need to be actually broken to confirm the contents and that can be identified with high accuracy.

The present invention was invented in order to achieve the problems and objects in the prior art as described above,
The processed food identification device of the present invention is
A processed food identification device for identifying processed food to be identified,
A light source that emits measurement light to the identified processed food to be identified;
A transmitted light receiver that receives transmitted light that has passed through the identified processed food in the measurement light emitted from the light source;
An identification means for identifying the identified processed food;
Comprising at least
The identification means is
Based on the light quantity data of the transmitted light of the reference processed food in advance, the first reference data of the reference processed food is created and stored,
Furthermore, based on the light amount data of the transmitted light of the identified processed food irradiated from the light source and received by the transmitted light receiving unit, the first measurement data of the identified processed food is created,
The identified processed food is identified based on first reference data of the reference processed food and first measurement data of the identified processed food.

Furthermore, the processed food identification method of the present invention includes:
A processed food identification method for identifying a processed food to be identified,
Irradiating measurement light from the light source to the identified processed food to be identified; and
Receiving the transmitted light transmitted through the identified processed food in the measurement light emitted from the light source by a transmitted light receiving unit;
Identifying the identified processed food; and
Having at least
The step of performing the identification includes
Based on the light quantity data of the transmitted light of the reference processed food in the identification means, the first reference data of the reference processed food is created and stored in advance,
Furthermore, based on the light amount data of the transmitted light of the identified processed food irradiated from the light source and received by the transmitted light receiving unit, the first measurement data of the identified processed food is created,
The identified processed food is identified based on first reference data of the reference processed food and first measurement data of the identified processed food.

  As described above, if the identified processed food is identified based on the first reference data of the reference processed food and the first measurement data of the identified processed food, the contents of the identified processed food are actually divided. It is not necessary to check (variety), and the contents (variety) can be identified with high accuracy in a non-destructive manner.

In addition, the processed food identification device of the present invention,
The identification means is
Based on the light amount data of transmitted light of a plurality of types of reference processed foods in advance, the first reference data of the plurality of types of reference processed foods is created and stored,
Furthermore, based on the light quantity data of the transmitted light of the identified processed food, the first measurement data of the identified processed food is created,
Fit the first measurement data of the identified processed food obtained to the first reference data of the plurality of types of reference processed food,
The first measurement data of the identified processed food falls within a predetermined range that is determined based on the first reference data of the plurality of types of reference processed foods and that is regarded as true of each of the plurality of types of reference processed foods To identify whether the identified processed food is one of the plurality of types of reference processed food,
The first measurement data of the identified processed food does not fall within a predetermined range that is determined based on the first reference data of the plurality of types of reference processed foods and is regarded as true of each of the plurality of types of reference processed foods. In this case, it is determined that the identified processed food does not correspond to any of a plurality of types of reference processed food.

Furthermore, the processed food identification method of the present invention includes:
The step of performing the identification includes
Based on the light amount data of transmitted light of a plurality of types of reference processed foods in advance, the first reference data of the plurality of types of reference processed foods is created and stored,
Furthermore, based on the light quantity data of the transmitted light of the identified processed food, the first measurement data of the identified processed food is created,
Fit the first measurement data of the identified processed food obtained to the first reference data of the plurality of types of reference processed food,
The first measurement data of the identified processed food falls within a predetermined range that is determined based on the first reference data of the plurality of types of reference processed foods and that is regarded as true of each of the plurality of types of reference processed foods To identify whether the identified processed food is one of the plurality of types of reference processed food,
The first measurement data of the identified processed food does not fall within a predetermined range that is determined based on the first reference data of the plurality of types of reference processed foods and is regarded as true of each of the plurality of types of reference processed foods. In this case, it is determined that the identified processed food does not correspond to any of a plurality of types of reference processed food.

  In this way, if the first measurement data of the obtained identified processed food is applied to the first reference data of the plurality of types of reference processed food, which of the plurality of types of reference processed food is the identified processed food? It is possible to reliably determine whether or not any of the above is true.

In addition, the processed food identification device of the present invention,
The identification means is
Based on the light amount data of the transmitted light of the reference processed food in advance, create and save the first reference data of the reference processed food,
Furthermore, based on the light amount data of the transmitted light of the identified processed food, the first measurement data of the identified processed food is created,
The first reference data of the reference processed food and the obtained first measurement data of the identified processed food are compared,
When the first measurement data of the identified processed food falls within a predetermined range that is determined based on the first reference data of the reference processed food and is regarded as true of the reference processed food, the identified processed food Is determined to be the same as the reference processed food,
When the first measurement data of the identified processed food does not fall within a predetermined range that is determined based on the first reference data of the reference processed food and is regarded as true of the reference processed food, the identified processed food It is characterized that it is determined that the food is different from the reference processed food.

Furthermore, the processed food identification method of the present invention includes:
The step of performing the identification includes
Based on the light amount data of the transmitted light of the reference processed food in advance, create and save the first reference data of the reference processed food,
Furthermore, based on the light amount data of the transmitted light of the identified processed food, the first measurement data of the identified processed food is created,
The first reference data of the reference processed food and the obtained first measurement data of the identified processed food are compared,
When the first measurement data of the identified processed food falls within a predetermined range that is determined based on the first reference data of the reference processed food and is regarded as true of the reference processed food, the identified processed food Is determined to be the same as the reference processed food,
When the first measurement data of the identified processed food does not fall within a predetermined range that is determined based on the first reference data of the reference processed food and is regarded as true of the reference processed food, the identified processed food It is characterized that it is determined that the food is different from the reference processed food.

  In this way, if the first reference data of the reference processed food and the first measurement data of the obtained identified processed food are compared, whether or not the identified processed food is the same as the reference processed food. Can be reliably determined.

In addition, the processed food identification device of the present invention,
A reflected light receiving unit that receives reflected light reflected on the identified processed food;
The identification means is
Based on the light quantity data of the reflected light of the reference processed food in advance, the second reference data of the reference processed food is created and stored,
Furthermore, based on the light quantity data of the reflected light of the identified processed food irradiated from the light source and received by the reflected light receiving unit, the second measurement data of the identified processed food is created,
The identified processed food is identified based on second reference data of the reference processed food and second measurement data of the identified processed food.

Furthermore, the processed food identification method of the present invention includes:
Receiving the reflected light reflected from the identified processed food by a reflected light receiving unit;
The step of performing the identification includes
Based on the light quantity data of the reflected light of the reference processed food in advance, the second reference data of the reference processed food is created and stored,
Furthermore, based on the light quantity data of the reflected light of the identified processed food irradiated from the light source and received by the reflected light receiving unit, the second measurement data of the identified processed food is created,
The identified processed food is identified based on second reference data of the reference processed food and second measurement data of the identified processed food.

  In addition to the above-described light quantity data of transmitted light, for example, the contents (variety) of the processed food can be identified as well as the contents (variety) of the identified processed food as well as the contents (variety). And the surface layer check can be performed together, and more reliable identification can be performed.

In addition, the processed food identification device of the present invention,
The identification means is
Based on the light quantity data of the reflected light of a plurality of types of reference processed foods in advance, the second reference data of the plurality of types of reference processed foods is created and stored,
Furthermore, based on the light quantity data of the reflected light of the identified processed food, the second measurement data of the identified processed food is created,
Fitting the obtained second measurement data of the identified processed food to the second reference data of the plurality of types of reference processed food;
When the second measurement data of the identified processed food falls within a predetermined range that is determined based on the second reference data of the plurality of types of reference processed foods and is considered to be true of each of the plurality of types of reference processed foods To identify whether the identified processed food is one of the plurality of types of reference processed food,
The second measurement data of the identified processed food does not fall within a predetermined range that is determined based on the second reference data of the plurality of types of reference processed foods and is regarded as true of each of the plurality of types of reference processed foods. In this case, it is determined that the identified processed food does not correspond to any of a plurality of types of reference processed food.

Furthermore, the processed food identification method of the present invention includes:
The step of performing the identification includes
Based on the light quantity data of the reflected light of a plurality of types of reference processed foods in advance, the second reference data of the plurality of types of reference processed foods is created and stored,
Furthermore, based on the light quantity data of the reflected light of the identified processed food, the second measurement data of the identified processed food is created,
Fitting the obtained second measurement data of the identified processed food to the second reference data of the plurality of types of reference processed food;
When the second measurement data of the identified processed food falls within a predetermined range that is determined based on the second reference data of the plurality of types of reference processed foods and is considered to be true of each of the plurality of types of reference processed foods To identify whether the identified processed food is one of the plurality of types of reference processed food,
The second measurement data of the identified processed food does not fall within a predetermined range that is determined based on the second reference data of the plurality of types of reference processed foods and is regarded as true of each of the plurality of types of reference processed foods. In this case, it is determined that the identified processed food does not correspond to any of a plurality of types of reference processed food.

  In this way, if the second measurement data of the identified processed food obtained is applied to the second reference data of the plurality of types of reference processed food, which of the plurality of types of reference processed food is the identified processed food It is possible to reliably determine whether or not any of the above is true.

In addition, the processed food identification device of the present invention,
The identification means is
Based on the light quantity data of the reflected light of the reference processed food in advance, create and store the second reference data of the reference processed food,
Furthermore, based on the light quantity data of the reflected light of the identified processed food, the second measurement data of the identified processed food is created,
Comparing the second reference data of the reference processed food with the obtained second measurement data of the identified processed food;
When the second measured data of the identified processed food falls within a predetermined range determined based on the second reference data of the reference processed food and considered true of the reference processed food, the identified processed food Is determined to be the same as the reference processed food,
When the second measurement data of the identified processed food does not fall within a predetermined range that is determined based on the second reference data of the reference processed food and is regarded as true of the reference processed food, the identified processed food It is characterized that it is determined that the food is different from the reference processed food.

Furthermore, the processed food identification method of the present invention includes:
The step of performing the identification includes
Based on the light quantity data of the reflected light of the reference processed food in advance, create and store the second reference data of the reference processed food,
Furthermore, based on the light quantity data of the reflected light of the identified processed food, the second measurement data of the identified processed food is created,
Comparing the second reference data of the reference processed food with the obtained second measurement data of the identified processed food;
When the second measured data of the identified processed food falls within a predetermined range determined based on the second reference data of the reference processed food and considered true of the reference processed food, the identified processed food Is determined to be the same as the reference processed food,
When the second measurement data of the identified processed food does not fall within a predetermined range that is determined based on the second reference data of the reference processed food and is regarded as true of the reference processed food, the identified processed food It is characterized that it is determined that the food is different from the reference processed food.

  In this way, if the second reference data of the reference processed food is compared with the second measurement data of the obtained identified processed food, whether or not the identified processed food is the same as the reference processed food. Can be reliably determined.

In addition, the processed food identification device and the processed food identification method of the present invention,
The wavelength of the measurement light emitted from the light source is in the range of 400 to 1700 nm.
Within such a wavelength range, the identified processed food can be reliably identified, which is preferable.

In addition, the processed food identification device and the processed food identification method of the present invention,
The light source is
It is either a halogen lamp or an LED or LED array having a specific wavelength necessary for identification.

  If it is such a kind of light source, the to-be-identified processed food can be identified reliably. In addition, when it is desired to prevent a large amount of heat from being applied to the identified processed food, it is preferable to select either an LED or an LED array having a relatively small amount of heat.

In addition, the processed food identification device and the processed food identification method of the present invention,
The identified processed food and the reference processed food are either not packaged in a packaging material or packaged in a packaging material.
Whether the food is to be identified or not can be identified.

In addition, the processed food identification device and the processed food identification method of the present invention,
The packaging material is a light transmissive packaging material.

  In the processed food identification apparatus and the processed food identification method of the present invention, at least the light quantity data of the transmitted light is used, so that the packaging material needs to be a light transmissive packaging material. For example, a light amount data of transmitted light cannot be obtained with a packaging material that does not transmit light, such as an aluminum packaging material.

It should be noted that the identification is possible when it does not affect the identification of the processed food to be identified, such as when aluminum or the like is used for the outer peripheral portion of the packaging material.
In the present invention, as a minimum, it is important that the packaging material positioned at the top and bottom and side portions of the identified processed food is a light-transmissive packaging material capable of obtaining light intensity data of transmitted light.

In addition, the processed food identification device and the processed food identification method of the present invention,
The identified processed food and the reference processed food are:
It is mounted on a conveyance line provided with a belt conveyor and is continuously conveyed.
Thus, if it is mounted on the conveyance line provided with a belt conveyor and is continuously conveyed, a plurality of types of identified processed foods can be efficiently identified in a short time.

In addition, the processed food identification device of the present invention,
Light quantity data of transmitted light and / or light quantity data of reflected light at predetermined intervals from the upstream to the downstream with respect to the reference processed food and identified processed food conveyed from upstream to downstream of the conveyance line. Get
From the light quantity data of the transmitted light and / or the light quantity data of the reflected light corresponding to each predetermined interval, the contents position and / or the amount of the contents of the reference processed food and the identified processed food are specified. It is comprised so that it may carry out.

Furthermore, the processed food identification method of the present invention includes:
Light quantity data of transmitted light and / or light quantity data of reflected light at predetermined intervals from the upstream to the downstream with respect to the reference processed food and identified processed food conveyed from upstream to downstream of the conveyance line. Get
From the light quantity data of the transmitted light and / or the light quantity data of the reflected light corresponding to each predetermined interval, the contents position and / or the amount of the contents of the reference processed food and the identified processed food are specified. It is characterized by doing.

  In this way, if the content position and / or the amount of the contents are specified at predetermined intervals, the processed food to be identified can be divided at predetermined intervals to obtain information, so that the position information is obtained. For example, in addition to the quality of the contents of the identified processed food, the position and amount of the contents of the identified processed food can also be determined, and the identified processed food can be identified with higher accuracy. it can.

  According to the processed food identification apparatus and the processed food identification method of the present invention, the first reference data of the reference processed food is created based on at least the light amount data of the transmitted light of the reference processed food, and the transmitted light of the identified processed food is transmitted. The first measurement data of the identified processed food is created based on the light quantity data of the identification processed food, and the identification of the identified processed food is based on the first reference data of the reference processed food and the first measurement data of the identified processed food Therefore, it is not necessary to break the identified processed food and actually confirm the contents, and the contents (variety) can be identified with high accuracy in a non-destructive manner.

FIG. 1 is a schematic view showing a first embodiment of the processed food identification apparatus of the present invention. FIG. 2 is a graph for explaining the identification method 1 of the processed food identification method using the processed food identification apparatus of the present invention. FIG. 3 is another graph for explaining the identification method 1 of the processed food identification method using the processed food identification apparatus of the present invention. FIG. 4 is a graph for explaining the identification method 2 of the processed food identification method using the processed food identification apparatus of the present invention. FIG. 5 is a graph showing the relationship between the wavelength of transmitted light and the first reference data of a plurality of types of reference processed foods. FIG. 6 is a schematic diagram and a graph showing the relationship between the position of the reference processed food (identified processed food) and the amount of transmitted light data of the reference processed food (identified processed food). FIG. 7 is a schematic diagram showing an example of an arrangement combination of a light source and a transmitted light receiving unit in the processed food identification apparatus of the present invention. FIG. 8 is a schematic view showing a second embodiment of the processed food identification apparatus of the present invention.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings.
The processed food identification apparatus and the processed food identification method of the present invention include whether or not an identified processed food to be identified is a desired (true) processed food, or which processed food specifically among a plurality of types of processed food. It is to identify whether or not it is.

In the present specification, “identified processed food” is actually processed food to be identified, and “reference processed food” is correct true processed food that is used for reference in identification. .
The “first reference data” is data obtained by performing a calibration curve process on the light intensity data of the transmitted light of the reference processed food, or data obtained by performing a spectrum process on the light intensity data of the transmitted light of the reference processed food. The “second reference data” is data obtained by performing a calibration curve process on the reflected light amount data of the reference processed food, or data obtained by performing spectral processing on the reflected light amount data of the reference processed food. .

  Further, the “first measurement data” is data obtained by performing a calibration curve process on the transmitted light amount data of the identified processed food, or data obtained by performing spectral processing on the transmitted light amount data of the identified processed food. The “second measurement data” can be obtained by performing spectral processing on the data obtained by performing the calibration curve processing on the light intensity data of the reflected light of the processed food to be identified or on the light intensity data of the reflected light of the processed food to be identified. Data.

  As an example of the calibration curve processing, there is a method of performing first-order differentiation, second-order differentiation, etc. on the light amount data. However, the “first reference data” in this specification includes transmittance, absorbance, and the like calculated based on the light amount data, and further includes the light amount data itself of the transmitted light of the reference processed food. The “second reference data” includes transmittance, absorbance and the like calculated based on the light amount data, and also includes the reflected light amount data itself of the reference processed food.

  In addition, the “first measurement data” in this specification includes the amount of transmitted light of the identified processed food itself, and the “second measurement data” includes the amount of reflected light of the identified processed food. The data itself is also included.

Examples of the “light quantity data” include transmitted light quantity.
Furthermore, although the identified processed food (reference processed food) in the drawings has a cross-sectional shape so that the contents can be confirmed for convenience of explanation, it is originally identified in a state where the contents cannot be confirmed at all. .

[First Embodiment]
As shown in FIG. 1, the processed food identification device 10 of the present invention includes a light source 20 that irradiates measurement light 22 to an identified processed food 60 that is an identification target, and a measurement object irradiated from the light source 20. It comprises at least a transmitted light receiving unit 30 that receives the transmitted light 24 that has passed through the identified processed food 60 in the light 22 and identification means 40 that identifies the identified processed food.

  And this identification means 40 acquires the light quantity data of the transmitted light 24 of the reference processed food 70 which becomes true in advance, and based on the light quantity data of the transmitted light 24 of the reference processed food 70, the first processed food 70 The reference data is created and stored, and further, the first measurement data of the identified processed food 60 based on the light quantity data of the transmitted light 24 of the identified processed food 60 emitted from the light source 20 and received by the transmitted light receiving unit 30. Create

Finally, the identified processed food 60 is identified based on the first reference data of the reference processed food 70 and the first measurement data of the identified processed food 60.
In FIG. 1, reference numeral 64 is the contents of the identified processed food 60, and 74 is the contents of the reference processed food 70.

  In the processed food identification apparatus 10 of this embodiment, the identified processed food 60 and the reference processed food 70 are placed on the transport line 50, and the transport direction 52 indicated by the arrow in FIG. 1 (from left to right in FIG. 1). Direction).

  The conveyance line 50 is preferably configured such that a gap is formed in the middle of the belt conveyor, for example, and the measurement light 22 from the light source 20 can be received by the transmitted light receiving unit 30 through this gap.

Here, the wavelength of the measurement light 22 irradiated from the light source 20 is preferably in the range of 400 to 1700 nm, and more preferably in the range of 500 to 1000 nm.
Specific examples of the light source 20 include a halogen lamp, an LED or LED array having a specific wavelength necessary for identification, and near infrared light and visible light are mainly used.

Further, the measurement light 22 may be substantially parallel light, or may be spot light collected by arranging a slit plate, a lens, or the like.
Furthermore, the light source 20 may be provided with an adjusting device (not shown) capable of adjusting the intensity of the measurement light 22 to be irradiated.

  It should be noted that the identified processed food 60 to be identified and the reference processed food 70 (true processed food) for reference are not packaged with a packaging material (not shown) or are packaged. It may be in a packaged state.

  However, in the state of being packaged with a packaging material, the packaging material needs to be a light-transmitting packaging material. This is because a packaging material that does not transmit light, such as an aluminum packaging material, cannot obtain light intensity data of transmitted light.

Although it does not specifically limit as a light transmissive packaging material, For example, a plastic film, vinyl, etc. can be mentioned.
In addition, when aluminum etc. are used only for the outer peripheral part of the packaging material, such as when it does not affect the data acquisition of the identified processed food 60 or the true reference processed food 70 for reference, In particular, a packaging material that does not transmit light may be used.

  As the transmitted light receiving unit 30, a near infrared spectroscopic camera (photodiode, CCD, etc. as a light receiving element), a combination of a band pass filter and a photodiode, or the like can be used.

  Further, as the identification means 40, the light quantity data of the transmitted light 24, 72 and the light quantity data of the reflected lights 84, 86 described later are obtained, and the first reference data and the second reference data of the reference processed food 70 are created and stored. Further, first measurement data and second measurement data are created, and based on the first reference data and second reference data of the reference processed food 70 and the first measurement data and second measurement data of the identified processed food 60 In order to identify the processed food 60 to be identified, it is preferable to use a dedicated high-speed computing device or a computing device equipped with a hard disk (HDD) such as a personal computer (PC).

The storage of the first reference data and the second reference data of the reference processed food 70 by the identification means 40 is as follows.
This may be performed at the time when the first reference data and the second reference data of the reference processed food 70 are acquired, but once saved, the light amount data of the transmitted light 72 and the light amount data of the reflected light 86 described later are acquired. It may be made to keep it.

  The identification means 40 senses deterioration of the light sources 20 and 80, and corrects temperature dependence of the transmitted light receiving unit 30, reflected light receiving unit 90, which will be described later, a processing substrate (not shown), and the like. Correction means (not shown) may be provided.

  The correction means is preferably provided with programming software and an arithmetic processing unit (not shown) for correcting the temperature dependence, and for example, a temperature sensor using a non-contact radiation thermometer is preferably used.

  By providing such correction means (not shown), changes in the environmental temperature (the temperature differs depending on the time and place of production) and changes in the temperature of the processed food itself (the processed food just produced and the time) The drift due to the difference in temperature) can be corrected with the processed food, and the identification repeatability of the identified processed food 60 can be maintained for a long time.

  As a specific example, data of a reference processed food is collected in a plurality of different environments such as 40 ° C., 20 ° C., and 10 ° C. according to changes in the environmental temperature, and the actual processed food 60 to be identified is recorded. When the data of the reference processed food 70 is different from the ambient temperature when the data of the reference processed food 70 is collected, the data of the identified processed food 60 is corrected according to the data of the reference processed food 70 by the calibration curve process. Can do. Regarding the change in the temperature of the processed food itself, as in the case of the change in the environmental temperature, it is only necessary to collect data of the reference processed food according to a plurality of temperature differences.

  The reference processed food 70 and the identified processed food 60 are not particularly limited, and examples thereof include bread, rice balls, Japanese confectionery (Shantou, Daifuku), Western confectionery (chocolate, cake), frozen food (gyoza, hamburger), and the like. Can be mentioned.

The processed food identification apparatus 10 and the processed food identification method of the present invention are suitable for identifying processed foods whose contents (quality) are generally difficult to identify from such an appearance.
In the processed food identification apparatus 10 of the present embodiment thus configured, in particular, the first reference data of the reference processed food 70 created based on the light quantity data of the transmitted light 72 of the reference processed food (true processed food) 70 and The identified processed food 60 is identified based on the first measurement data of the identified processed food 60 created based on the light amount data of the transmitted light 24 of the identified processed food 60.

Hereinafter, a specific identification method will be described in detail.
<Identification method 1>
First, the reference processed food (true processed food) 70 is placed on the conveyance line 50 shown in FIG. 1 and is referenced from the light source 20 positioned above the reference processed food 70 while being conveyed in the conveyance direction 52 indicated by the arrow. The processed light 70 is irradiated with the measurement light 22, and the transmitted light 72 transmitted through the reference processed food 70 is received by the transmitted light receiving unit 30 located below the reference processed food 70.

  Irradiation of the measurement light 22 from the light source 20 and reception of the transmitted light 72 at the transmitted light receiving unit 30 start from a state where there is no reference processed food 70 at the beginning, and the left end from the right end of the reference processed food 70. The light amount data of the transmitted light 72 of the reference processed food 70 is obtained at predetermined intervals.

  And the light quantity data for every predetermined space | interval of the obtained reference processed food 70 are acquired, and the light quantity data of this reference processed food 70 are each acquired with respect to multiple types of reference processed food 70a, 70b, 70c. Here, the plurality of types of reference processed foods 70a, 70b, and 70c mean different varieties (true processed foods having the same appearance but different contents, such as jam bread, anpan bread, chocolate bread, etc.). .

  The light quantity data of the transmitted light 72 for each predetermined interval of each of the plurality of types of reference processed foods 70a, 70b, 70c is subjected to a calibration curve process, and each first reference data is created and stored in the identification means 40. .

In this identification method 1, as shown in FIG. 2, the reference processed food 70a is set to the number “1” as the first reference data, the reference processed food 70b is set to the number “2”, and the reference processed food 70c is similarly set. The number “3” is set. In FIG. 2, the reference processed foods 70a, 70b, and 70c are arranged in the order of numbers set in the X-axis direction. )
In addition, it does not specifically limit how each reference processed food 70a, 70b, 70c is set, For example, "A", "B", "C", "(circle)", "(triangle | delta)", " □ "etc. may be set.

  Then, based on the first reference data of each of the reference processed foods 70a, 70b, 70c to which this number is set, a “predetermined range to be considered true” is set for each of the reference processed foods 70a, 70b, 70c. To do. The “predetermined range to be regarded as true” refers to a range that can be regarded as a genuine processed food.

  For example, in FIG. 2, a predetermined range that is regarded as true is set for each of the reference processed foods 70a, 70b, and 70c based on the five pieces of first reference data. A range 32 surrounded by a dotted line is a range regarded as a reference processed food 70a, a range 34 surrounded by a dotted line is a range regarded as a reference processed food 70b, and a range 36 surrounded by a dotted line is a range regarded as a reference processed food 70c. It is.

  Next, the identified processed food 60 to be actually identified is placed on the transport line 50 in the same manner as the above-described reference processed foods 70a, 70b, and 70c, and is transported in the transport direction 52 indicated by the arrows. Irradiates the identification target processed food 60 with the measurement light 22 from the light source 20 positioned above the target processed food 60, and the transmitted light receiving unit 30 positioned below the target processed food 60 identifies the target processed food 60. The transmitted light 24 transmitted through is received.

  The irradiation of the measurement light 22 from the light source 20 and the reception of the transmitted light 24 at the transmitted light receiving unit 30 starts from a state in which there is no identified processed food 60 at first, and the left side from the right end of the identified processed food 60. The process is performed until reaching the end, and light intensity data of the transmitted light 24 of the identified processed food 60 is obtained at predetermined intervals.

Then, the light quantity data of the transmitted light 24 of the identified processed food 60 is subjected to a calibration curve process, and each first measurement data is created.
Next, the first measurement data of the identified processed food 60 is applied to the first reference data of the reference processed food 70 created in advance by the identification means 40. Specifically, the first measurement data of the identified processed food 60 is applied to the predetermined ranges 32, 34, and 36 regarded as true of the reference processed foods 70a, 70b, and 70c shown in FIG. If the first measurement data of the identification processed food 60 falls within any of the predetermined ranges 32, 34, and 36 that are regarded as true of the plurality of types of reference processed foods 70a, 70b, and 70c shown in FIG. It can be specified whether the identification processed food 60 is specifically a plurality of types of reference processed foods 70a, 70b, 70c.

For example, when the first measurement data of the identified processed food 60 falls within the predetermined range 32, the identified processed food 60 can be identified as being the same as the reference processed food 70a.
When the identified processed food 60 is specifically identified, the identification information is sent to a sorting device (not shown) provided on the downstream side of the processed food identification device 10 to smoothly perform the sorting operation. be able to.

  On the other hand, the first measurement data of the identified processed food 60 is applied to the predetermined ranges 32, 34, and 36 regarded as true of the reference processed foods 70a, 70b, and 70c shown in FIG. If the first measurement data of the food 60 does not fall within any of the predetermined ranges 32, 34, and 36 regarded as true of the plurality of types of reference processed foods 70a, 70b, and 70c shown in FIG. It is determined that the processed food 60 does not specifically correspond to any of the plurality of types of reference processed foods 70a, 70b, and 70c.

  When it is determined that the identified processed food 60 does not correspond to any of the plurality of types of reference processed foods 70a, 70b, and 70c, information is sent to the above-described sorting device (not shown) or the like (desired ( Sorting can be performed reliably as a processed food different from any of the true processed foods.

  Since this identification method 1 creates each first reference data based on the light quantity data of the transmitted light 72 of a plurality of types of reference processed foods 70a, 70b, 70c (for example, jam bread, bread roll, cream bread). Even when a plurality of types of identified processed foods 60a, 60b, and 60c (for example, jam bread, bread rolls, and cream bread) are mixed and conveyed on the conveyance line 50, the individual identified processed foods 60a, 60b, 60c can be specified, and sorting can be performed reliably on the downstream side.

  The reference processed food 70a is the same processed food as the identified processed food 60a, the reference processed food 70b is the same as the identified processed food 60b, and the reference processed food 70c is the same as the identified processed food 60c.

  In addition, when a completely different identified processed food 60 that is not assumed separately from the plurality of types of reference processed foods 70a, 70b, 70c stored in the identification means 40 is mixed in the transport line 50 by mistake. In addition, the identified processed food 60 can be identified as being different from the reference processed foods 70a, 70b, and 70c, and can be sorted downstream.

Therefore, specific identification of the identified processed food 60 and the erroneously identified identified processed food 60 can be identified.
In the identification method 1, as shown in FIG. 2, numbers “1”, “2”, and “3” are set for the plurality of types of reference processed foods 70a, 70b, and 70c, respectively. In addition, a plurality of types of reference processed foods 70 may be classified by a known principal component analysis.

  Specifically, the light intensity data of the transmitted light 72 for each of 10 types of unprocessed reference processed foods (in FIG. 3, five types of breads such as cream bread, jam bread, ground bread, white bread and curry bread). (Near-infrared transmission spectrum) is acquired, and based on the light quantity data of the transmitted light 72 of the five types of reference processed food 70, first reference data of the reference processed food 70 is created and stored in the identification means 40.

As the first reference data, the absorbance is calculated based on the transmitted light quantity of the light quantity data of the transmitted light 72, and further, a second-order differentiation is applied to perform baseline correction to obtain a numerical value.
Based on the obtained first reference data, the principal component 1 is taken in the X-axis direction and the principal component 2 is taken in the Y-axis direction using a known principal component analysis method. As shown in FIG. 3, it can be confirmed that the five types of reference processed foods 70 are classified without overlapping each other as surrounded by a solid line. Therefore, the first measurement data of the identified processed food 60 is created in the same manner as described above, and the main component 1 in the X-axis direction is generated using the principal component analysis method based on the first measurement data of the identified processed food 60. If the principal component 2 is taken in the Y-axis direction and this identified processed food 60 is plotted and applied to the above-described graph of FIG. 3, the identified processed food 60 can be identified.

<Identification method 2>
Next, the identification method 2 will be described.
First, the reference processed food 70 is placed on the transfer line 50 shown in FIG. 1, and the reference processed food 70 is measured from the light source 20 positioned above the reference processed food 70 while being transferred in the transfer direction 52 indicated by the arrow. The transmitted light 72 that has been transmitted through the reference processed food 70 is received by the transmitted light receiving unit 30 that is irradiated with the light 22 and located below the reference processed food 70.

  Irradiation of the measurement light 22 from the light source 20 and reception of the transmitted light 72 at the transmitted light receiving unit 30 start from a state where there is no reference processed food 70 at the beginning, and the left end from the right end of the reference processed food 70. The light amount data of the transmitted light 72 of the reference processed food 70 is obtained at predetermined intervals.

  Then, the light amount data of the reference processed food 70 is acquired at every predetermined interval, and the first reference data of the reference processed food 70 is created based on the light amount data of the reference processed food 70 and stored in the identification unit 40. To do.

  The first reference data is obtained by spectrally processing the light amount data of the transmitted light 72 at predetermined intervals of the reference processed food 70. Specifically, the transmittance, absorbance, and the like are calculated based on the light amount data, and are obtained by primary differentiation, secondary differentiation, etc., but the light amount data itself may be used. The light amount data here is transmitted light amount and the like.

  Next, the identified processed food 60 to be actually identified is placed on the transport line 50 in the same way as the above-described reference processed food 70 and transported in the transport direction 52 indicated by the arrow, this time the identified processed food. The measurement light 22 is irradiated from the light source 20 located above the food 60 to the identified processed food 60, and transmitted through the identified processed food 60 by the transmitted light receiving unit 30 located below the identified processed food 60. Light 24 is received.

  The irradiation of the measurement light 22 from the light source 20 and the reception of the transmitted light 24 at the transmitted light receiving unit 30 starts from a state in which there is no identified processed food 60 at first, and the left side from the right end of the identified processed food 60. The process is performed until reaching the end, and light intensity data of the transmitted light 24 of the identified processed food 60 is obtained at predetermined intervals.

And the 1st measurement data of the to-be-identified processed food 60 are created based on the light quantity data of the transmitted light 24 of the received to-be-identified processed food 60. FIG.
The first measurement data is obtained by spectrally processing the light amount data of the transmitted light 24 at predetermined intervals of the identified processed food 60. Specifically, the transmittance, absorbance, and the like are calculated based on the light amount data, and are obtained by primary differentiation, secondary differentiation, etc., but the light amount data itself may be used. The light amount data here is transmitted light amount and the like.

FIG. 4 is a graph showing the relationship between the wavelength of the transmitted light 72 of the reference processed food 70 and the first reference data of the reference processed food 70.
In FIG. 4, it can be confirmed that the reference processed food 70 has a unique curved shape as shown by a solid line.

  A predetermined range (in the range between the dotted lines above and below the solid line in FIG. 4) is provided in the first reference data of the reference processed food 70. This predetermined range is a range regarded as true of the reference processed food 70.

Then, the identification unit 40 compares the first reference data of the created reference processed food 70 with the first measurement data of the identified processed food 60.
When the first measurement data of the identified processed food 60 falls within a predetermined range that is regarded as true of the reference processed food 70 (within the range between dotted lines above and below the solid line in FIG. 4), It is determined that the processed food 60 is the same as the reference processed food 70.

  On the other hand, the first reference data of the reference processed food 70 and the actually obtained first measurement data of the identified processed food 60 are compared, and the first measurement data of the identified processed food 60 is the true value of the reference processed food 70. If it does not fall within the predetermined range that is regarded as being not (does not fall within the range between the dotted lines above and below the solid line in FIG. 4), it is determined that the identified processed food 60 is different from the reference processed food 70.

  When it is determined that the identified processed food 60 is different from the reference processed food 70, the information is sent to an alarm device (not shown) so that the conveyance line 50 stops or a sorting device (not shown). To sort).

  Note that the relationship between the wavelength of the transmitted light 72 of the reference processed food 70 and the first reference data of the reference processed food 70 is shown in FIG. 5 when the reference processed food 70 is changed to another processed food. Since it is confirmed that the waveforms are different as shown in the graph, it is possible to reliably determine whether or not the identified processed food 60 is the same as the reference processed food 70.

  What is the range of the first reference data of the reference processed food 70 and the first measurement data of the identified processed food 60 (in FIG. 4, the range between the dotted lines above and below the solid line) In this case, whether or not it is determined that the identified processed food 60 is the same as the reference processed food 70 is determined by how much the waveform is different among different types of reference processed foods 70a, 70b, and 70c. good.

  For example, if the waveforms are similar between different types of reference processed foods 70a, 70b, 70c, the range (the range between dotted lines above and below the solid line in FIG. 4) may be narrowed. In the case where the waveforms are greatly different between different types of reference processed foods 70a, 70b, 70c as shown in FIG. 5, this range (the range between the dotted lines above and below the solid line in FIG. 4). It is also good for spreading.

  In particular, when a plurality of different types of reference processed foods 70a, 70b, and 70c are processed foods that are very similar to each other, the reference processed food 70 and the identified processed food 60 are each wavelength point of the wavelength of transmitted light. When the square of the difference between the Y-axis numerical values (the numerical values of the first reference data) is obtained and summed, and the obtained sum is equal to or less than a certain value, the identified processed food 60 is the same as the reference processed food 70 It is sufficient to identify them.

  In the identification method 2, the data of the reference processed food 70 to be compared with the identified processed food 60 may be obtained any time before the identified processed food 60 is identified. If data is acquired and averaged for a certain constant (for example, 100 pieces) of the identified processed food 60 to be compared, and this is compared with the data of the identified processed food 60, the data becomes a further identification target. The identified processed food 60 is compared with the reference processed food 70 under conditions close to those of the identified processed food 60, and the average value obtained from the data of many reference processed foods 70 is used, so that the identified processed food 60 is identified with high accuracy. Can do.

  Further, in this embodiment, the reference processed food 70 and the identified processed food 60 are placed on the transport line 50 equipped with a belt conveyor and are continuously transported, so the positions of the contents 64, 74 and the contents 64, Position information such as the size of 74 can also be obtained.

FIG. 6 is a schematic diagram and a graph showing the relationship between the position of the reference processed food (identified processed food) and the amount of transmitted light data of the reference processed food (identified processed food).
In this graph, section A is a position where the reference processed food 70 (identified processed food 60) does not reach between the light source 20 and the transmitted light receiving unit 30, and a change in the amount of transmitted light 72 (24) is observed. There is no place.

  Next, in the reference processed food 70 (identified processed food 60) that moves on the transport line 50 in the transport direction 52 indicated by the arrow, the portion of the B section reaches between the light source 20 and the transmitted light receiving unit 30. When the light amount data of the transmitted light 72 (24) of the portion of the B section is acquired, a change occurs from the A section of the graph as in the B section of the graph.

  Similarly, if the light amount data of the transmitted light 72 (24) is obtained at predetermined intervals such as the C interval, the D interval, the E interval, and the F interval, the light amount of the transmitted light 72 (24) corresponding to the passage of time is obtained. Since the change can be confirmed, the position and amount of the contents 74 (64) of the reference processed food 70 (identified processed food 60) can also be detected. In the section from A to F, the width to be divided is not limited, and fine position information can be obtained by further narrowing the width.

  If this positional information is also stored in the identification means 40 together with the first reference data of the transmitted light, the positional information is also acquired when acquiring the data of the identified processed food 60, and these are compared. The identified processed food 60 can be identified with higher accuracy.

  In this embodiment, the light source 20 is disposed above and the transmitted light receiving unit 30 is disposed below the conveyance line 50. However, the present invention is not limited to this. For example, as illustrated in FIG. As shown in FIG. 7B, the light source 20 is disposed on the upper side, and the transmitted light receiving unit 30 is disposed on the side, and the transmitted light receiving unit 30 is disposed on the other side. Alternatively, as shown in FIG. 7C, the light source 20 may be arranged on one side and the transmitted light receiving unit 30 may be arranged on the upper side.

Further, a plurality of light sources 20 may be used as shown in FIG. 7D. The positions and number of the light sources 20 and the transmitted light receiving unit 30 are identified and processed processed food 60 and reference processed food 70. What is necessary is just to select suitably according to a shape, a magnitude | size, etc. of this.
In addition, the conveyance direction of Fig.7 (a)-FIG.7 (d) is a back direction from the near side, or a near side from the near side.

[Second Embodiment]
FIG. 8 is a schematic view similar to FIG. 1 showing a second embodiment of the processed food identification apparatus 10 of the present invention.
The processed food identification apparatus 10 shown in FIG. 8 has the same configuration as the processed food identification apparatus 10 shown in FIG. 1 with the same basic components. Is omitted.

  The processed food identification apparatus 10 in the second embodiment shown in FIG. 8 is provided with a light source 80 and a reflected light receiving unit 90 that receives the reflected light 84 as compared with the processed food identification apparatus 10 shown in FIG. This point is different from the first embodiment shown in FIG.

  Such a processed food identification apparatus 10 is based on the first reference data obtained by performing spectral processing on the light amount data of the transmitted light 72 of the reference processed food 70 and the light amount data of the transmitted light 24 of the identified processed food 60. In addition to the obtained first measurement data, the second reference data obtained based on the light quantity data of the reflected light 86 of the reference processed food 70 and the light quantity data of the reflected light 84 of the identified processed food 60 are obtained. The identified processed food 60 is also identified using the obtained second measurement data.

  The second reference data obtained based on the light quantity data of the reflected light 86 of the reference processed food 70 and the second measurement data obtained based on the light quantity data of the reflected light 84 of the processed food 60 to be identified are, for example, identified The difference in surface layer between the processed food 60 and the reference processed food 70 (for example, whether or not an unexpected food is attached to the surface of the identified processed food 60 and the reference processed food 70) can be reliably identified, and an internal check ( In addition to the content check), the surface layer check can also be performed, and further reliable identification can be performed.

  In FIG. 8, the light source 80 is newly provided, but there may be only one light source 20 and it is not particularly limited. Further, the position and number of the light source 80 and the reflected light receiving unit 90 may be appropriately selected according to the shape and size of the identified processed food 60 and the reference processed food 70.

  As the reflected light receiving unit 90, a near-infrared spectroscopic camera (photodiode, CCD, etc. as a light receiving element), a combination of a band pass filter and a photodiode, or the like can be used as in the above-described transmitted light receiving unit 30.

  In the present embodiment, second reference data obtained based on the light amount data of the reflected light 86 of the reference processed food 70 and second measurement data obtained based on the light amount data of the reflected light 84 of the identified processed food 60. The first obtaining method is based on the first reference data obtained based on the light amount data of the transmitted light 72 of the reference processed food 70 and the light amount data of the transmitted light 24 of the identified processed food 60 described above. Although it is basically the same as the measurement data acquisition method, the second reference data of the reference processed food 70, the second measurement data of the identified processed food 60, and the first reference data of the reference processed food 70 will be described below. And the identification method (identification method using both the light quantity data of transmitted light and the light quantity data of reflected light) using 1st measurement data of the to-be-identified processed food 60 is demonstrated easily.

<Identification method 1>
First, the reference processed food 70 (true processed food) is placed on the conveyance line 50 shown in FIG. 8 and is referenced from the light source 20 positioned above the reference processed food 70 while being conveyed in the conveyance direction 52 indicated by the arrow. The processed light 70 is irradiated with the measurement light 22, and the transmitted light 72 transmitted through the reference processed food 70 is received by the transmitted light receiving unit 30 located below the reference processed food 70.

  At the same time, the measurement processed light 82 is irradiated from the light source 80 located above the reference processed food 70 to the reference processed food 70, and the reflected light receiving unit 90 positioned above the reference processed food 70 reflects the reference processed food 70. The reflected light 86 is received.

  Then, the light amount data of the transmitted light 72 and the light amount data of the reflected light 86 are obtained at predetermined intervals of the obtained reference processed food 70, and the light amount data of the transmitted light 72 and the light amount of the reflected light 86 of the reference processed food 70 are obtained. Data acquisition is performed for each of the plurality of types of reference processed foods 70a, 70b, and 70c. Here, the plurality of types of reference processed foods 70a, 70b, and 70c mean different varieties (true processed foods having the same appearance but different contents, such as jam bread, bean bread, cream bread, etc.). .

  The light amount data of the transmitted light 72 and the light amount data of the reflected light 86 for each of the predetermined intervals of the plurality of types of reference processed foods 70a, 70b, 70c are each subjected to a calibration curve process. Second reference data is created from the first reference data based on the light amount data of the reflected light 86, and is stored in the identification means.

In this identification method 1, the number “1” is set for the reference processed food 70a, the reference processed food 70b is similarly set to the number “2”, and the reference processed food 70c is set to the number “3”.
And from the light quantity data of the transmitted light 72 and the light quantity data of the reflected light 86 of the reference processed foods 70a, 70b, and 70c to which the numbers are assigned, the reference processed foods 70a, 70b, and 70c are regarded as true. A predetermined range is set.

  Next, the identified processed food 60 to be actually identified is placed on the transport line 50 in the same manner as the above-described reference processed foods 70a, 70b, and 70c, and is transported in the transport direction 52 indicated by the arrows. Irradiates the identification target processed food 60 with the measurement light 22 from the light source 20 positioned above the target processed food 60, and the transmitted light receiving unit 30 positioned below the target processed food 60 identifies the target processed food 60. The transmitted light 24 transmitted through is received.

  In addition, measurement light 82 is irradiated from the light source 80 located above the identified processed food 60 to the identified processed food 60, and the reflected light receiving unit 90 positioned above the identified processed food 60 performs identification processing. The reflected light 84 reflected from the food 60 is received.

  The light quantity data of the transmitted light 24 and the light quantity data of the reflected light 84 of the identified processed food 60 are each subjected to a calibration curve process. The first measurement data is obtained from the light quantity data of the transmitted light 24 and the light quantity data of the reflected light 84. The second measurement data is created.

The first measurement data and the second measurement data of the identified processed food 60 are applied to the first reference data and the second reference data of the reference processed food 70, respectively.
Specifically, the first measurement data and the second measurement data of the identified processed food 60 are fitted to a predetermined range that is regarded as true of each of the reference processed foods 70a, 70b, and 70c. When both the first measurement data and the second measurement data fall within any of the predetermined ranges that are regarded as true of the plurality of types of reference processed foods 70a, 70b, 70c, the identified processed food 60 is specifically It can be specified which of the multiple types of reference processed foods 70a, 70b, and 70c.

  When the identified processed food 60 is specifically identified, the identification information is sent to a sorting device (not shown) provided on the downstream side of the processed food identification device 10 to smoothly perform the sorting operation. be able to.

  On the other hand, the first measurement data and the second measurement data of the identified processed food 60 are fitted to the predetermined ranges regarded as true of the reference processed foods 70a, 70b, and 70c, and the first measurement of the identified processed food 60 is performed. When both the data and the second measurement data do not fall within any of the predetermined ranges regarded as true of the plurality of types of reference processed foods 70a, 70b, 70c, the plurality of types of identified processed foods 60 are specifically specified. Therefore, it is determined that none of the reference processed foods 70a, 70b, and 70c is applicable.

  When it is determined that the identified processed food 60 does not correspond to any of the plurality of types of reference processed foods 70a, 70b, and 70c, information is sent to the above-described sorting device (not shown) or the like (desired ( Sorting can be performed reliably as a processed food different from any of the true processed foods.

  This identification method 1 is based on the light quantity data of the transmitted light 72 and the light quantity data of the reflected light 86 of the plurality of types of reference processed foods 70a, 70b, 70c (for example, jam bread, bread roll, cream bread), respectively. In order to create the data and the second reference data, even when a plurality of types of identified processed foods 60a, 60b, 60c (for example, jam bread, bread roll, cream bread) are mixedly conveyed on the conveyance line 50 The identified processed foods 60a, 60b, and 60c can be reliably identified, and can be reliably sorted on the downstream side.

  Furthermore, even if the reference processed food 70 and the identified processed food 60 have the same contents but the surface layers are different, for example, the surface of the processed food is unintentionally provided with sesame or the like. The identified processed food 60 can be reliably identified.

  In addition, when a completely different identified processed food 60 that is not assumed separately from the plurality of types of reference processed foods 70a, 70b, 70c stored in the identification means 40 is mixed in the transport line 50 by mistake. In addition, the identified processed food 60 can be identified as being different from the reference processed foods 70a, 70b, and 70c, and can be sorted downstream.

  Accordingly, specific identification of the identified processed food 60 and identification of the identified identified processed food 60 can be performed, and differences in the surface layer can be identified together, with higher accuracy than in the first embodiment. The identified processed food 60 can be identified.

<Identification method 2>
Next, the identification method 2 will be described.
First, the reference processed food 70 is placed on the conveyance line 50 shown in FIG. 8, and the reference processed food 70 is measured from the light source 20 positioned above the reference processed food 70 while being conveyed in the conveyance direction 52 indicated by the arrow. The transmitted light 72 that has been transmitted through the reference processed food 70 is received by the transmitted light receiving unit 30 that is irradiated with the light 22 and located below the reference processed food 70.

  In addition, the measurement processed light 82 is irradiated to the reference processed food 70 from the light source 80 positioned above the reference processed food 70, and the reference processed food 70 is reflected by the reflected light receiving unit 90 positioned above the reference processed food 70. The reflected light 86 is received.

  And the light quantity data of the transmitted light 72 of the reference processed food 70 and the light quantity data of the reflected light 86 are acquired, and the 1st reference data of the reference processed food 70 is created based on the light quantity data of the transmitted light 72 of the reference processed food 70 Then, the second reference data of the reference processed food 70 is created based on the light amount data of the reflected light 86 of the reference processed food 70 and stored in the identifying means 40.

  The first reference data is obtained by spectrally processing the light amount data of the transmitted light 72 for each predetermined interval of the reference processed food 70, and the second reference data is the reflection for each predetermined interval of the reference processed food 70. It is obtained by spectrally processing light quantity data of light.

  Next, the identified processed food 60 to be actually identified is placed on the transport line 50 in the same way as the above-described reference processed food 70 and transported in the transport direction 52 indicated by the arrow, this time the identified processed food. The measurement light 22 is irradiated from the light source 20 located above the food 60 to the identified processed food 60, and transmitted through the identified processed food 60 by the transmitted light receiving unit 30 located below the identified processed food 60. Light 24 is received.

  In addition, measurement light 82 is irradiated to the identified processed food 60 from the light source 80 positioned above the identified processed food 60, and the identified processed food 60 is reflected by the reflected light receiving unit 90 positioned above the identified processed food 60. The reflected light 84 reflected from 60 is received.

  Then, the received light quantity data of the transmitted light 24 and the light quantity data of the reflected light 84 of the identified processed food 60 are subjected to spectrum processing, and first measurement data and second measurement data of the identified processed food 60 are created.

Next, the first reference data and the second reference data of the reference processed food 70 are compared with the first measurement data and the second measurement data of the identified processed food 60.
A predetermined range is provided for the first reference data and the second reference data of the reference processed food 70, and the first measurement data and the second measurement data of the identified processed food 60 actually obtained are the reference processed food 70. The identified processed food 60 is the same as the reference processed food 70 when it falls within a predetermined range that is determined based on the first reference data and the second reference data of the reference processed food 70. Is determined.

  On the other hand, the first measurement data and the second measurement data of the identified processed food 60 actually obtained are determined based on the first reference data and the second reference data of the reference processed food 70. When it does not fall within the predetermined range that is regarded as true, it is determined that the identified processed food 60 is different from the reference processed food 70.

  If it is determined that the identified processed food 60 is different from the reference processed food 70, the information is sent to an alarm device (not shown) so that the conveyance line 50 stops or a sorting device (not shown). ) And sort them.

  The relationship between “the wavelength of the transmitted light 72 of the reference processed food 70” and “the first reference data of the reference processed food 70” and “the wavelength of the reflected light 86 of the reference processed food 70” and “the reference processed food 70 Regarding the relationship with the “second reference data”, since the waveform is confirmed to be different when the reference processed food 70 is changed to another processed food, the identified processed food 60 is surely the reference processed food 70. It can be determined whether or not the same.

  To what extent are the first reference data of the reference processed food 70 and the first measurement data of the identified processed food 60, and the second reference data of the reference processed food 70 and the second measurement data of the identified processed food 60 If it is approximated, whether or not the identified processed food 60 is determined to be the same as the reference processed food 70 can be determined by how much the waveform is different among different types of reference processed foods 70a, 70b, and 70c. good.

  In the identification method 2, the data of the reference processed food 70 to be compared with the identified processed food 60 may be obtained any time before the identified processed food 60 is identified. If data is acquired and averaged for a certain constant (for example, 100 pieces) of the identified processed food 60 to be compared, and this is compared with the data of the identified processed food 60, the data becomes a further identification target. The identified processed food 60 is compared with the reference processed food 70 under conditions close to those of the identified processed food 60, and the average value obtained from the data of many reference processed foods 70 is used, so that the identified processed food 60 is identified with high accuracy. Can do.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to these embodiment, For example, in above-mentioned embodiment, the to-be-identified processed food 60 and reference processed food conveyed on the conveyance line 50 are mentioned. Although 70 is taken as an example, the identified processed food 60 or the reference processed food 70 placed on a stationary table may be used.

  Further, in the present embodiment, for the identified processed food 60 or the reference processed food 70, based on the light amount data of the transmitted light 24 (72) and the light amount data of the reflected light 84 (86), the type of the content 64 (74) The position and amount of the contents 64 (74) are identified, but the presence or absence of cavities, differences in sugar content, differences in moisture content, etc. may also be identified, and moreover, a plurality of identifying elements may be combined. If the light quantity data of transmitted light and the light quantity data of reflected light appear as a difference in value, it is stored in the identification means in advance as calibration curve data, and this is processed By using the light quantity data of the food 60, various elements can be identified, and identification can be performed with higher accuracy.

  As described above, the processed food identification apparatus and the processed food identification method of the present invention can be variously modified and changed without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 10 ... Processed food identification apparatus 20 ... Light source 22 ... Measurement light 24 ... Transmitted light which permeate | transmitted to-be-identified processed food 30 ... Transmitted light light-receiving part 32 ... Surrounded by the dotted line Range 34: Range enclosed by dotted line 36 ... Range enclosed by dotted line 40 ... Identification means 50 ... Conveying line 52 ... Conveying direction 60 ... Identified processed food 60a ... Processed food to be identified 60b ... Processed food to be identified 60c ... Processed food to be identified 64 ... Contents of the food to be identified 70 ... Reference processed food 70a ... Reference processed food 70b ... Reference processed food 70c ... Reference processed food 72 ... Transmitted light transmitted through the reference processed food 74 ... Contents of the reference processed food 80 ... Light source 82 ... Measurement light 84 ... Reflected light reflected from the identified processed food 86 ... Reflected light reflected from the reference processed food 90 ... Reflected light receiving unit

Claims (24)

A processed food identification device for identifying processed food to be identified,
A light source that emits measurement light to the identified processed food to be identified;
A transmitted light receiver that receives transmitted light that has passed through the identified processed food in the measurement light emitted from the light source;
An identification means for identifying the identified processed food;
Comprising at least
The identification means is
Based on the light quantity data of the transmitted light of the reference processed food in advance, the first reference data of the reference processed food is created and stored,
Furthermore, based on the light amount data of the transmitted light of the identified processed food irradiated from the light source and received by the transmitted light receiving unit, the first measurement data of the identified processed food is created,
The processed food identification apparatus, wherein the identified processed food is identified based on first reference data of the reference processed food and first measurement data of the identified processed food. The identification means is
Based on the light amount data of transmitted light of a plurality of types of reference processed foods in advance, the first reference data of the plurality of types of reference processed foods is created and stored,
Furthermore, based on the light quantity data of the transmitted light of the identified processed food, the first measurement data of the identified processed food is created,
Fit the first measurement data of the identified processed food obtained to the first reference data of the plurality of types of reference processed food,
The first measurement data of the identified processed food falls within a predetermined range that is determined based on the first reference data of the plurality of types of reference processed foods and that is regarded as true of each of the plurality of types of reference processed foods To identify whether the identified processed food is one of the plurality of types of reference processed food,
The first measurement data of the identified processed food does not fall within a predetermined range that is determined based on the first reference data of the plurality of types of reference processed foods and is regarded as true of each of the plurality of types of reference processed foods. In this case, it is determined that the identified processed food does not correspond to any of a plurality of types of reference processed foods. The identification means is
Based on the light amount data of the transmitted light of the reference processed food in advance, create and save the first reference data of the reference processed food,
Furthermore, based on the light amount data of the transmitted light of the identified processed food, the first measurement data of the identified processed food is created,
The first reference data of the reference processed food and the obtained first measurement data of the identified processed food are compared,
When the first measurement data of the identified processed food falls within a predetermined range that is determined based on the first reference data of the reference processed food and is regarded as true of the reference processed food, the identified processed food Is determined to be the same as the reference processed food,
When the first measurement data of the identified processed food does not fall within a predetermined range that is determined based on the first reference data of the reference processed food and is regarded as true of the reference processed food, the identified processed food The processed food identification apparatus according to claim 1, wherein the food is determined to be different from the reference processed food. A reflected light receiving unit that receives reflected light reflected on the identified processed food;
The identification means is
Based on the light quantity data of the reflected light of the reference processed food in advance, the second reference data of the reference processed food is created and stored,
Furthermore, based on the light quantity data of the reflected light of the identified processed food irradiated from the light source and received by the reflected light receiving unit, the second measurement data of the identified processed food is created,
4. The process according to claim 1, wherein the identified processed food is identified based on second reference data of the reference processed food and second measurement data of the identified processed food. Food identification device. The identification means is
Based on the light quantity data of the reflected light of a plurality of types of reference processed foods in advance, the second reference data of the plurality of types of reference processed foods is created and stored,
Furthermore, based on the light quantity data of the reflected light of the identified processed food, the second measurement data of the identified processed food is created,
Fitting the obtained second measurement data of the identified processed food to the second reference data of the plurality of types of reference processed food;
When the second measurement data of the identified processed food falls within a predetermined range that is determined based on the second reference data of the plurality of types of reference processed foods and is considered to be true of each of the plurality of types of reference processed foods To identify whether the identified processed food is one of the plurality of types of reference processed food,
The second measurement data of the identified processed food does not fall within a predetermined range that is determined based on the second reference data of the plurality of types of reference processed foods and is regarded as true of each of the plurality of types of reference processed foods. In this case, it is determined that the identified processed food does not correspond to any of a plurality of types of reference processed foods. The identification means is
Based on the light quantity data of the reflected light of the reference processed food in advance, create and store the second reference data of the reference processed food,
Furthermore, based on the light quantity data of the reflected light of the identified processed food, the second measurement data of the identified processed food is created,
Comparing the second reference data of the reference processed food with the obtained second measurement data of the identified processed food;
When the second measured data of the identified processed food falls within a predetermined range determined based on the second reference data of the reference processed food and considered true of the reference processed food, the identified processed food Is determined to be the same as the reference processed food,
When the second measurement data of the identified processed food does not fall within a predetermined range that is determined based on the second reference data of the reference processed food and is regarded as true of the reference processed food, the identified processed food The processed food identification apparatus according to claim 4, wherein the food is determined to be different from the reference processed food.   The processed food identification apparatus according to any one of claims 1 to 6, wherein the wavelength of the measurement light emitted from the light source is in a range of 400 to 1700 nm. The light source is
The processed food identification apparatus according to any one of claims 1 to 7, wherein the processed food identification apparatus is any one of a halogen lamp, an LED having a specific wavelength necessary for identification, and an LED array.   The processed food according to any one of claims 1 to 8, wherein the identified processed food and the reference processed food are either not packaged with a packaging material or packaged with a packaging material. Food identification device.   The processed food identification apparatus according to claim 9, wherein the packaging material is a light-transmissive packaging material. The identified processed food and the reference processed food are:
The processed food identification apparatus according to any one of claims 1 to 10, wherein the processed food identification apparatus is placed on a conveyance line including a belt conveyor and continuously conveyed. Light quantity data of transmitted light and / or light quantity data of reflected light at predetermined intervals from the upstream to the downstream with respect to the reference processed food and identified processed food conveyed from upstream to downstream of the conveyance line. Get
From the light quantity data of the transmitted light and / or the light quantity data of the reflected light corresponding to each predetermined interval, the contents position and / or the amount of the contents of the reference processed food and the identified processed food are specified. The processed food identification apparatus according to claim 11, wherein the processed food identification apparatus is configured to perform. A processed food identification method for identifying a processed food to be identified,
Irradiating measurement light from the light source to the identified processed food to be identified; and
Receiving the transmitted light transmitted through the identified processed food in the measurement light emitted from the light source by a transmitted light receiving unit;
Identifying the identified processed food; and
Having at least
The step of performing the identification includes
Based on the light quantity data of the transmitted light of the reference processed food in the identification means, the first reference data of the reference processed food is created and stored in advance,
Furthermore, based on the light amount data of the transmitted light of the identified processed food irradiated from the light source and received by the transmitted light receiving unit, the first measurement data of the identified processed food is created,
The processed food identification method, wherein the identified processed food is identified based on first reference data of the reference processed food and first measurement data of the identified processed food. The step of performing the identification includes
Based on the light amount data of transmitted light of a plurality of types of reference processed foods in advance, the first reference data of the plurality of types of reference processed foods is created and stored,
Furthermore, based on the light quantity data of the transmitted light of the identified processed food, the first measurement data of the identified processed food is created,
Fit the first measurement data of the identified processed food obtained to the first reference data of the plurality of types of reference processed food,
The first measurement data of the identified processed food falls within a predetermined range that is determined based on the first reference data of the plurality of types of reference processed foods and that is regarded as true of each of the plurality of types of reference processed foods To identify whether the identified processed food is one of the plurality of types of reference processed food,
The first measurement data of the identified processed food does not fall within a predetermined range that is determined based on the first reference data of the plurality of types of reference processed foods and is regarded as true of each of the plurality of types of reference processed foods. In this case, it is determined that the identified processed food does not correspond to any of a plurality of types of reference processed foods. The step of performing the identification includes
Based on the light amount data of the transmitted light of the reference processed food in advance, create and save the first reference data of the reference processed food,
Furthermore, based on the light amount data of the transmitted light of the identified processed food, the first measurement data of the identified processed food is created,
The first reference data of the reference processed food and the obtained first measurement data of the identified processed food are compared,
When the first measurement data of the identified processed food falls within a predetermined range that is determined based on the first reference data of the reference processed food and is regarded as true of the reference processed food, the identified processed food Is determined to be the same as the reference processed food,
When the first measurement data of the identified processed food does not fall within a predetermined range that is determined based on the first reference data of the reference processed food and is regarded as true of the reference processed food, the identified processed food The processed food identification method according to claim 13, wherein the food is determined to be different from the reference processed food. Receiving the reflected light reflected from the identified processed food by a reflected light receiving unit;
The step of performing the identification includes
Based on the light quantity data of the reflected light of the reference processed food in advance, create and store the second reference data of the reference processed food,
Furthermore, based on the light quantity data of the reflected light of the identified processed food irradiated from the light source and received by the reflected light receiving unit, the second measurement data of the identified processed food is created,
The process according to any one of claims 13 to 15, wherein the identified processed food is identified based on second reference data of the reference processed food and second measurement data of the identified processed food. Food identification method. The step of performing the identification includes
Based on the light quantity data of the reflected light of a plurality of types of reference processed foods in advance, the second reference data of the plurality of types of reference processed foods is created and stored,
Furthermore, based on the light quantity data of the reflected light of the identified processed food, the second measurement data of the identified processed food is created,
Fitting the obtained second measurement data of the identified processed food to the second reference data of the plurality of types of reference processed food;
When the second measurement data of the identified processed food falls within a predetermined range that is determined based on the second reference data of the plurality of types of reference processed foods and is considered to be true of each of the plurality of types of reference processed foods To identify whether the identified processed food is one of the plurality of types of reference processed food,
The second measurement data of the identified processed food does not fall within a predetermined range that is determined based on the second reference data of the plurality of types of reference processed foods and is regarded as true of each of the plurality of types of reference processed foods. In the case, it is determined that the identified processed food does not correspond to any of a plurality of types of reference processed foods. The step of performing the identification includes
Based on the light quantity data of the reflected light of the reference processed food in advance, create and store the second reference data of the reference processed food,
Furthermore, based on the light quantity data of the reflected light of the identified processed food, the second measurement data of the identified processed food is created,
Comparing the second reference data of the reference processed food with the obtained second measurement data of the identified processed food;
When the second measured data of the identified processed food falls within a predetermined range determined based on the second reference data of the reference processed food and considered true of the reference processed food, the identified processed food Is determined to be the same as the reference processed food,
When the second measurement data of the identified processed food does not fall within a predetermined range that is determined based on the second reference data of the reference processed food and is regarded as true of the reference processed food, the identified processed food The processed food identification method according to claim 16, wherein the food is determined to be different from the reference processed food.   19. The processed food identification method according to claim 13, wherein the wavelength of the measurement light emitted from the light source is in a range of 400 to 1700 nm. The light source is
The processed food identification method according to any one of claims 13 to 19, which is either a halogen lamp or an LED or LED array having a specific wavelength necessary for identification.   The process according to any one of claims 13 to 20, wherein the identified processed food and the reference processed food are either not packaged with a packaging material or packaged with a packaging material. Food identification method.   The processed food identification method according to claim 21, wherein the packaging material is a light-transmissive packaging material. The identified processed food and the reference processed food are:
The processed food identification method according to any one of claims 13 to 22, wherein the processed food identification method is placed on a conveyance line including a belt conveyor and continuously conveyed. Light quantity data of transmitted light and / or light quantity data of reflected light at predetermined intervals from the upstream to the downstream with respect to the reference processed food and identified processed food conveyed from upstream to downstream of the conveyance line. Get
From the light quantity data of the transmitted light and / or the light quantity data of the reflected light corresponding to each predetermined interval, the contents position and / or the amount of the contents of the reference processed food and the identified processed food are specified. The processed food identification method according to claim 23, wherein:

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