JP2017166943A - Inner quality determination system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inner quality determination system, even when a measuring object includes a portion such as a seed, not transmitting light, capable of accurately determining the quality of a whole inner part of the measuring object.SOLUTION: A measurement area provided halfway through conveyance of a conveyance mechanism for conveying a plurality of trays, includes: an upper light projector and a lower light projector vertically disposed on both sides of the conveyance mechanism so as to face each other; and first and second light receiving parts disposed on both sides of the conveyance mechanism in the conveyance width direction so as to face each other. A control device determines the inner quality of a measuring object on the basis of transmission light of the measuring object received by the first and second light receiving parts. Each tray is configured to allow transmission light to advance toward the first and second light receiving parts, the transmission light including transmission light applied from the lower light projector to the measuring object via an opening or a slit provided on a receiving seat of the tray and transmitting through the measuring object, and transmission light applied from the upper light projector to the measuring object and transmitting trough the measuring object.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an internal quality determination system that determines the internal quality of an object to be measured such as agricultural products having large seeds such as mango and avocado.

  An internal quality determination system that irradiates a measurement object with light and receives internal transmitted light and spectrally processes the transmitted light to determine the internal quality of the measurement object is known.

  For example, in Patent Documents 1 and 2 below, a transport mechanism that transports a tray on which fruits and vegetables are placed, a light projecting unit that irradiates measurement light onto fruits and vegetables transported by the transport mechanism, and the light projecting unit An internal quality determination system is disclosed that includes a light receiving unit that receives transmitted light that has been irradiated to fruits and vegetables and transmitted through the fruits and vegetables.

  However, in the internal quality determination systems described in Patent Documents 1 and 2, when the fruits and vegetables for which the internal quality is to be determined have large seeds such as mango and avocado, a “dead angle” in which transmitted light does not spread occurs. As a result, there was a problem that the internal quality of the whole fruits and vegetables could not be accurately determined.

  That is, in the configurations described in Patent Documents 1 and 2, the light projecting unit includes first and second light projecting units disposed on both sides in the width direction of the transport mechanism with the transport mechanism interposed therebetween. On the other hand, the light receiving unit is a single light receiving unit disposed above the transport mechanism.

  In such a configuration, when the fruits and vegetables whose internal quality is to be judged have large seeds such as mango and avocado, the transmitted light does not reach the portion located below the seeds in the fruits and vegetables. The overall internal quality cannot be accurately determined.

  Moreover, in the following Patent Document 3, a transport mechanism that transports a tray on which agricultural products are placed, a light projecting unit that irradiates measurement light to the agricultural products transported by the transport mechanism, and a farm product from the light projecting unit. An internal quality determination system including a light receiving unit that receives transmitted light that is transmitted through the agricultural product, and the light projecting unit is disposed below the transport mechanism, and the light receiving unit is disposed on the transport mechanism. There are disclosed a configuration in which the light projecting unit is disposed below the transport mechanism, and a form in which the light receiving unit is disposed on both sides in the transport width direction of the transport mechanism.

  However, even in the configuration described in Patent Document 3, when the agricultural product whose internal quality is to be measured has large seeds such as mango and avocado, transmitted light is transmitted to a portion of the agricultural product located above the seeds. As a result, the internal quality of the whole agricultural product cannot be accurately determined.

JP 2007-303939 A JP 2007-303940 A JP 2012-122876 A

  The present invention has been made in view of such prior art, and even if the measurement object has a portion that does not transmit light such as seeds inside, the quality of the entire inside of the measurement object is accurately determined. The purpose is to provide a possible internal quality judgment system.

  In order to achieve the above object, the first aspect of the present invention includes a tray having a receiving seat including a main surface on which a measurement object is placed, a transport mechanism that transports the plurality of trays in series, In the measurement area provided in the middle of conveyance of the conveyance mechanism, the upper and lower light projecting units are arranged opposite to each other with the conveyance mechanism interposed therebetween and project measurement light toward the measurement object, In the measurement region, the internal quality of the measurement object is determined based on the first and second light receiving units disposed opposite to each other in the transport width direction with the transport mechanism interposed therebetween, and the transmitted light received by the first and second light receiving units. An opening or a slit that enables the measurement object from the lower light projecting unit to be irradiated to the measurement object, and the tray has the Measured from the lower light projecting section through the opening or slit The transmitted light that is irradiated to the object and transmitted through the measurement object and the transmitted light that is irradiated to the measurement object from the upper light projecting unit and transmitted through the measurement object are directed toward the first and second light receiving units. An internal quality determination system configured to allow progress is provided.

Preferably, the internal quality determination system according to the first aspect includes a shielding wall portion provided with an opening or a slit corresponding to the opening or the slit, and covers the measurement object by the shielding wall portion. As described above, the tray is provided with a cover detachably installed.
In this case, the tray and the cover are transmitted from the lower light projecting unit through the opening or slit of the tray and transmitted through the measurement object, and through the opening or slit of the cover. Thus, the transmitted light that has been irradiated from the upper light projecting unit and transmitted through the measurement object is allowed to travel toward the first and second light receiving units.

  In one embodiment, the control device is configured to control operation of the upper light projecting unit and the lower light projecting unit, and when one tray reaches the measurement area, the upper light projecting unit and the lower light projecting unit are controlled. The side light projecting unit is configured to emit light simultaneously.

In another aspect, the control device is configured to control operation of the transport mechanism, the upper light projecting unit, and the lower light projecting unit.
When the one tray reaches the measurement area, the control device causes only one of the upper light projecting unit and the lower light projecting unit to emit light while the transport mechanism is stopped, and the first and second light receiving units. Determining the internal quality of the upper and lower one side portions where the one light projecting unit is located among the inside of the measurement object based on the transmitted light only from the one light projecting unit received by the unit, and Measured based on the transmitted light only by the light from the other light projecting part received by the first and second light receiving parts by stopping the light emission of one light projecting part and causing only the other light projecting part to emit light It is comprised so that the internal quality of the up-and-down other side part in which the said other light projection part is located among the insides of a target object may be determined.

The internal quality determination system according to the first aspect is optically connected to the first and second light receiving units, and splits transmitted light from the measurement object received by the first and second light receiving units. Thus, a spectroscopic device for generating spectroscopic information may be provided.
In this case, the control device is configured to determine the internal quality of the measurement object based on the spectral information from the spectroscopic device.

  For example, the spectroscopic device may include a common spectroscope that inputs light received by the first and second light receiving units in a mixed state.

  Instead, the spectroscopic device is optically connected to the first light receiving unit, and a first spectroscope that generates first spectral information by splitting the transmitted light received by the first light receiving unit. And a second spectroscope that is optically connected to the second light receiving unit and that splits the transmitted light received by the second light receiving unit to generate second spectral information.

  In order to achieve the above object, the second aspect of the present invention provides a tray having a receiving seat including a main surface on which a measurement object is placed, and a transport mechanism that transports the plurality of trays in series. And an upper light projecting unit that projects measurement light from above the transport mechanism toward the measurement object in the upper measurement region provided in the middle of the transport of the transport mechanism, and sandwiches the transport mechanism in the upper measurement region In the lower measurement region different from the upper measurement region with respect to the transport direction of the transport mechanism, the measurement object from below the transport mechanism A lower light projecting unit that projects measurement light toward the lower light projecting unit, and first and second light receiving units for the lower light projecting unit that are opposed to each other in the transport width direction across the transport mechanism in the lower measurement region. The first and second light receiving parts for the upper light projecting part And a control device for determining the internal quality of the measurement object based on the transmitted light received by the first and second light receiving parts for the lower light projecting part, and the lower light projecting part is provided with the lower light projecting part. An opening or a slit that allows measurement light from the light unit to be irradiated onto the measurement object is provided, and the tray is irradiated from the lower light projecting unit through the opening or slit to the measurement object. And allows the transmitted light that has passed through the measurement object to travel toward the first and second light receiving parts for the lower light projecting part, and is irradiated from the upper light projecting part to the measurement object; Provided is an internal quality determination system configured to allow transmitted light transmitted through the measurement object to travel toward the first and second light receiving units for the upper light projecting unit.

Preferably, the internal quality determination system according to the second aspect has a shielding wall portion provided with an opening or a slit corresponding to the opening or the slit, and covers the upper side of the measurement object by the shielding wall portion. A cover that can be installed on the tray is provided.
In this case, in the tray and the cover, the transmitted light that is irradiated from the lower light projecting unit through the opening or slit of the tray and transmitted through the measurement object is used for the lower light projecting unit. Transmitted light that is allowed to travel toward the first and second light receiving parts and that is irradiated from the upper light projecting part to the measurement object through the opening or slit of the cover and is transmitted through the measurement object. Is allowed to travel toward the first and second light receiving parts for the upper light projecting part.

The internal quality determination system according to the second aspect is optically connected to the first and second light receiving units for the upper light projecting unit and the first and second light receiving units for the lower light projecting unit, and A spectroscopic device that generates spectroscopic information by spectroscopically transmitting transmitted light from a measurement object received by the first and second light receiving units for the light unit and the first and second light receiving units for the lower light projecting unit. obtain.
In this case, the control device is configured to determine the internal quality of the measurement object based on the spectral information from the spectroscopic device.

For example, the spectroscopic device inputs the light received by the first and second light receiving units for the upper light projecting unit in a mixed state, and inputs the light to the first and second light receiving units for the lower light projecting unit. And a common spectroscope that inputs light received in a mixed state.
In this case, the control device is configured to control operation of the upper light projecting unit and the lower light projecting unit. When one tray reaches the upper measurement region, the control device causes the upper light projecting unit to emit light. The spectral information of the transmitted light that has passed through the measurement object and received by the first and second light receiving parts for the upper light projecting part is input from the common spectroscope, and one tray is in the lower measurement area. , The lower light projecting unit emits light, and the spectral information of the transmitted light transmitted through the measurement object and received by the first and second light receiving units for the lower light projecting unit is transmitted to the common spectroscope. May be configured to input from.

Instead, the spectroscopic device is optically connected to the first light receiving unit for the upper light projecting unit and the first light receiving unit for the lower light projecting unit, and the first light receiving unit for the upper light projecting unit and A first spectroscope that generates first spectral information by splitting the transmitted light received by the first light receiving unit for the lower light projecting unit, the second light receiving unit for the upper light projecting unit, and the lower light projecting unit. Optically connected to the second light receiving part for light part, and splits the transmitted light received by the second light receiving part for the upper light projecting part and the second light receiving part for the lower light projecting part, thereby performing the second spectroscopy. A second spectroscope for generating information.
In this case, the control device is configured to control operation of the upper light projecting unit and the lower light projecting unit. When one tray reaches the upper measurement region, the control device causes the upper light projecting unit to emit light. The spectral information of the transmitted light that has passed through the measurement object and received by the first light receiving unit for the upper light projecting unit is input from the first spectrometer and is received by the second light receiving unit for the upper light projecting unit. The spectral information of the received transmitted light is input from the second spectroscope, and when one tray reaches the lower measurement region, the lower light projecting unit emits light, passes through the measurement object, and passes through the measurement object. Spectral information of the transmitted light received from the first spectroscope and received by the second light receiving portion for the lower light projecting portion is input from the first spectrometer. Information is configured to be input from the second spectrometer.

  According to the internal quality determination system according to the first aspect of the present invention, in the measurement region provided in the middle of the conveyance mechanism that conveys a plurality of trays, the upper light projecting unit and the lower light projecting unit are configured to transfer the transport mechanism. The control device is arranged on the basis of the transmitted light received by the first and second light-receiving units, with the first and second light-receiving units arranged opposite to each other in the conveyance width direction with the conveyance mechanism interposed therebetween. It is configured to determine the internal quality of the measurement object, and further, the tray irradiates the measurement object from the lower light projecting unit through an opening or slit provided in the receiving seat part of the tray. The transmitted light transmitted through the measurement object and the transmitted light irradiated from the upper light projecting unit to the measurement object and transmitted through the measurement object are allowed to travel to the first and second light receiving units. Measurement object There is also a case of having a large species such as mango and avocados, the quality of the entire interior of the measuring object can be accurately determined.

According to the internal quality determination system according to the second aspect of the present invention, in the upper measurement region provided in the middle of the conveyance mechanism that conveys the plurality of trays, the upper light projecting unit emits the measurement light from above the conveyance mechanism. In the lower measurement region that is arranged to irradiate and the upper light projecting portion first and second light receiving portions are opposed to each other across the transport mechanism in the transport width direction, and is different from the upper measurement region in the transport direction, The side light projecting unit is disposed so as to irradiate the measurement light from below the transport mechanism, and the first and second light receiving units for the lower light projecting unit are disposed to face each other across the transport mechanism in the transport width direction,
Based on the transmitted light received by the first and second light receiving parts for the upper light projecting part and the first and second light receiving parts for the lower light projecting part, the control device determines the internal quality of the measurement object. Furthermore, the tray is transmitted through the measurement object by irradiating the measurement object from the lower light projecting unit through an opening or slit provided in the receiving seat of the tray. The upper side of the transmitted light that allows the light to travel to the first and second light receiving parts for the lower light projecting part and is irradiated from the upper light projecting part to the measurement object and transmitted through the measurement object. Since it is configured to allow progress to the first and second light receiving parts for the light projecting part, the entire interior of the measurement object even if the measurement object has a large species such as mango or avocado Can be determined with high accuracy.

FIG. 1 is a schematic plan view of an internal quality determination system according to Embodiment 1 of the present invention. FIG. 2 is a schematic side view of the internal quality determination system shown in FIG. FIG. 3 is a schematic cross-sectional view of the internal quality judgment system taken along line III-III in FIG. FIG. 4 is a perspective view of a state where a cover is attached to the tray in the internal quality determination system. FIG. 5 is an exploded perspective view of FIG. 6 (a) is a schematic front view of a conventional internal quality determination system, and FIG. 6 (b) is a schematic front view of the internal quality determination system according to the first embodiment. FIG. 7 is a schematic plan view of an internal quality determination system according to a modification of the first embodiment. FIG. 8 is a schematic side view of a cover installation mechanism applicable to the internal quality determination system. FIG. 9 is a schematic plan view of an internal quality determination system according to Embodiment 2 of the present invention. FIG. 10 is a schematic side view of the internal quality determination system shown in FIG. FIG. 11 is a schematic cross-sectional view of the internal quality determination system taken along line XI-XI in FIG. FIG. 12 is a schematic plan view of an internal quality determination system according to a modification of the second embodiment.

Embodiment 1
Hereinafter, a preferred embodiment of an internal quality determination system according to the present invention will be described with reference to the accompanying drawings.
FIGS. 1 and 2 show a schematic plan view and a schematic side view of the internal quality determination system 1 according to the present embodiment, respectively.
FIG. 3 is a schematic cross-sectional view of the internal quality determination system 1 taken along line III-III in FIG.

  As shown in FIGS. 1 to 3, the internal quality determination system 1 according to the present embodiment includes a tray 100 on which a measurement object 300 is placed, a transport mechanism 10 that transports the tray 100, and the transport mechanism. The light projecting unit 30 that projects measurement light onto the measurement object 300 being conveyed by the light receiving unit 10 and the transmitted light that has passed through the measurement object 300 among the measurement light irradiated by the light projecting unit 30 is received. A light receiving unit 50, a spectroscopic device 70, and a control device 90 are provided.

  As shown in FIGS. 2 and 3, the internal quality determination system 1 is opposed to the light projecting unit 30 in the measurement region 10 </ b> B provided in the middle of the conveyance of the conveyance mechanism 10 with the conveyance mechanism 100 interposed therebetween. An upper light projecting unit 30U and a lower light projecting unit 30D that are arranged and emit measurement light toward the measurement object 300 are provided.

As the upper light projecting unit 30U and the lower light projecting unit 30D, for example, a halogen lamp, a xenon lamp, an LED lamp, or the like that can emit light having a wavelength in the near infrared region is used.
The upper light projecting unit 30U and the lower light projecting unit 30D project light in the same wavelength range, and the light intensity at the time when the measurement object 300 is irradiated is substantially the same. Further, the distance from the measurement object 300 is the same.

In addition, the internal quality determination system 1 includes, as the light receiving unit 50, first and second light receiving units 50 (1) and 50 (50) disposed opposite to each other in the transport width direction with the transport mechanism 10 interposed therebetween in the measurement region 10B. 2).
The first and second light receiving units 50 (1) and 50 (2) may be, for example, the tips of optical fibers whose rear ends are optically connected to the spectroscopic device 70.

  The first and second light receiving units 50 (1) and 50 (2) have the same separation distance from the measurement object 300 so that the transmitted light of the measurement object 300 can be received under the same conditions.

4 and 5 are a perspective view and an exploded perspective view of the tray 100, respectively.
In order to facilitate understanding of the tray 100, the measurement object 300 is not shown in FIGS. 4 and 5.

  As shown in FIGS. 1 and 3 to 5, the tray 100 is supported and transported by the transport mechanism 10, and is connected to the base 110, and is connected to the base 110, and the main object 300 is placed on the tray 100. And a receiving seat portion 130 including a surface 131.

  In the present embodiment, the base 110 includes the first and second side walls 111 and 112 that are separated in the transport width direction of the transport mechanism 10, and the front side in the transport direction of the first and second side walls 111 and 112. And a rear connection part 114 that connects the rear sides of the first and second side walls 111 and 112 in the transport direction.

  Each of the first and second side walls 111 and 112 is provided with a support column 115 extending upward on the front side and the rear side in the transport direction, and the receiving seat portion 130 includes the first and second side walls. 111 and 112 are supported by a total of four support columns 115.

Front and rear connecting rods 120 and 122 along the transport width direction of the transport mechanism 10 are supported on the front and rear sides of the base 110 in the transport direction, respectively.
In the present embodiment, a slit 116 that opens forward in the transport direction is provided on the front side of the base 110 in the transport direction, and the front connecting rod 120 is inserted through the slit 116.
A mounting hole 118 that opens in the transport width direction of the transport mechanism 10 is provided on the rear side of the base 110 in the transport direction, and the rear connecting rod 122 is inserted through the mounting hole 118.

  As shown in FIGS. 1 and 3 to 5, the measurement light from the lower light projecting unit 30 </ b> D is applied to the measurement object 300 in a state of being placed on the main surface 131. An opening or slit 135 is provided that allows it to be irradiated.

  The tray 100 irradiates the measurement object 300 from the lower light projecting unit 30D through the opening or slit 135 and transmits the transmitted light that has passed through the measurement object 300 and the measurement object from the upper light projecting unit 30U. It is configured to allow the transmitted light irradiated to 300 and transmitted through the measurement object 300 to travel toward the first and second light receiving units 50 (1) and 50 (2).

  In the present embodiment, as shown in FIGS. 4 and 5, etc., the receiving seat 130 is a concave shape that opens upward in order to stabilize the conveying posture of the measurement object 300 placed on the main surface 131. It is said that.

  In this case, as shown in FIG. 3, the depth of the concave receiving seat 130 is set such that the measurement object 300 placed on the main surface 131 and the light receiving parts 50 (1) and 50 (2). Is set so that a light path is secured between the two.

The transport mechanism 10 is configured to transport the plurality of trays 100 in series.
In the present embodiment, as shown in FIGS. 1 and 2, the transport mechanism 10 includes a drive rotator 11 such as a drive sprocket, a driven rotator 12 such as a driven sprocket, the drive rotator 11 and the A first endless body 15 (1) such as a chain wound on one side in the conveyance width direction of the driven rotator, a chain wound on the other side in the conveyance width direction of the drive rotator 11 and the driven rotator, etc. Second endless body 15 (2).

  In the tray 100, both ends of the front connecting rod 120 and the rear connecting rod 122 are connected to the first and second endless bodies 15 (1) and 15 (2). It is conveyed endlessly.

  As shown in FIGS. 1 and 2, the transport mechanism 10 transports the tray 100 with the main surface 131 facing upward, so that the measurement object can be placed on the main surface 131. The tray 100 is transported with the placement area 10A and the main surface 131 facing upward, and the measurement area 10B provided on the downstream side in the transport direction from the placement area 10A and the main surface 131 face upward. The tray 100 is transported in a posture, and includes a sorting area 10C provided downstream in the transport direction from the measurement area 10B, and a return area 10D for returning the tray that has passed the sorting area 10C to the placement area 10A. It has an endless transfer path.

The spectroscopic device 70 divides the transmitted light of the measurement object 300 received by the first and second light receiving units 50 (1) and 50 (2) to generate spectral information such as a spectral signal.
In the present embodiment, as shown in FIGS. 1 to 3, the spectroscopic device 70 mixes the light received by the first and second light receiving units 50 (1) and 50 (2) in a mixed state. A common spectroscope 71 is provided.

  The control device 90 determines the internal quality of the measurement object 300 based on the spectral information from the spectroscopic device 70.

In other words, the control device 90 stores threshold data relating to specific internal quality such as sugar content in advance.
The control device 90 receives the internal quality of the measurement object 300 based on the comparison between the spectral information of the measurement object 300 placed on one tray and the threshold data received from the spectroscopy device 70. Make a decision.

  According to the internal quality determination system 1 having such a configuration, even if the measurement object 300 has a large species such as mango or avocado, the quality of the entire interior of the measurement object 300 can be accurately determined. it can.

  That is, as shown in FIG. 6A, the conventional internal quality determination system 500 includes a single light projecting unit 30 that projects measurement light toward the measurement target 300 from below, and the measurement target 300. It has the 1st and 2nd light-receiving part 50 (1) and 50 (2) arrange | positioned at the conveyance width direction both sides.

In the conventional internal quality determination system 500, the measurement light of the single light projecting unit 30 projected from below can pass through the portion 315 located directly above the seed 310 in the measurement object 300. Therefore, the portion 315 immediately above the seed 310 becomes a “dead spot”.
Therefore, the internal quality determination in the conventional internal quality determination system 500 does not reflect the internal quality of the “blind spot” portion.

  In contrast, in the internal quality determination system 1 according to the present embodiment, as shown in FIG. 6B and as described above, the upper light projecting unit 30U and the lower light projecting unit 30D are respectively measured objects 300. The first and second light receiving units 50 (1) and 50 (2) that project measurement light from above and below and are arranged on both sides in the conveyance width direction of the conveyance mechanism 10 are objects to be measured. Light transmitted through 300 is received.

According to such a configuration, light from the upper light projecting unit 30 </ b> U is transmitted to a portion located above the seed 310 in the measurement object 300, and from the seed 310 in the measurement object 300. In addition, the light from the lower light projecting unit 30D passes through the portion located below.
Therefore, even when the measuring object 300 has a large seed 310, the quality of the entire inside of the measuring object 300 can be accurately determined.

  As shown in FIGS. 1 to 5, the internal quality determination system 1 according to the present embodiment further includes a cover 150 that is detachably installed on the tray 100 so as to cover the upper side of the measurement object 300. ing.

  The cover 150 includes a shielding wall portion 160 that covers the measurement object 300. The shielding wall portion 160 is provided with an opening or slit 165 corresponding to the opening or slit 135 in the tray 100. ing.

  As shown in FIGS. 3 to 5, the tray 100 and the cover 150 are irradiated from the lower light projecting unit 30 </ b> D through the opening or slit 135 of the tray 100 and pass through the inside of the measurement object 300. The transmitted light and the transmitted light that is irradiated from the upper light projecting unit 30U through the opening or slit 165 of the cover 150 and transmitted through the measurement object 300 are the first and second light receiving units 50. (1), 50 (2) is configured to be allowed to proceed.

  In the present embodiment, as shown in FIGS. 4 and 5, the shielding wall portion 160 has a concave shape that corresponds to the concave shape of the receiving seat portion 130 and opens downward. Support columns 170 extending downward from the front, rear, left, and right four locations on the shielding wall 160 are provided.

  The support column 170 of the cover 150 is placed on the support column 115 of the tray 100. When the support column 170 of the cover 150 is placed on the support column 115 of the tray 100, the shielding wall is placed. Between the part 160 and the receiving seat part 130, a passage is formed in which the transmitted light of the measuring object 300 travels toward the first and second light receiving parts 50 (1) and 50 (2).

  Thus, by providing the cover 150 having an opening or slit 165 corresponding to the opening or slit 135 in the tray 100, transmitted light that has been irradiated from the upper light projecting unit 30U and transmitted through the inside of the measurement object. Irradiation conditions with the transmitted light that has been irradiated from the lower light projecting unit 30D and transmitted through the inside of the measurement object can be made uniform, whereby the internal quality of the measurement object 300 can be more accurately determined. It becomes.

  In the present embodiment, as described above, the spectroscopic device 70 inputs the light received by the first and second light receiving units 50 (1) and 50 (2) in a mixed state. Instead of this, as shown in FIG. 7, the spectroscopic device 70 is optically connected to the first light receiving unit 50 (1) and connected to the first light receiving unit 50 (1). Optically connected to the second light receiving unit 50 (2) and the first light receiving unit 50 (2), which splits the received light and generates the first spectral information. It is also possible to modify it so as to have a second spectroscope 72 (2) that splits the transmitted light received in 2) and generates second spectral information.

  According to such modification 1 ′, the internal quality of the measurement object 300 on one side in the conveyance width direction is determined based on the first spectral information, and the conveyance width of the measurement object 300 is based on the second spectral information. The internal quality on the other side of the direction can be determined.

Here, the operation of the internal quality determination system 1 will be described mainly with reference to FIGS. 1 and 2.
In the placement area 10A of the transport mechanism 10, the cover 150 is separated from the tray 100. In the placement area 10A, the operator faces upward and the main surface 131 is open upward. The measurement object 300 is placed on top.

  The cover 150 is placed on the one tray 100 until the one tray 100 on which the measurement object 300 is placed on the main surface 131 reaches the measurement region 10B.

  The cover 150 can be installed manually by an operator or automatically.

The automatic installation of the cover 150 can be performed by, for example, the cover installation mechanism 200 shown in FIG.
The cover installation mechanism 200 has a transport surface 211 facing a portion from the placement area 10A to the sorting area 10C in the transport mechanism 10 and is transported endlessly. The cover transport mechanism 210 And a cover moving mechanism 230 supported by the cover.

  The cover moving mechanism 230 includes a base end member 231 supported by the cover transport mechanism 210, a movable member 233 accommodated in the base end member 231 so as to be able to advance and retreat in the vertical direction, and an actuator for moving the movable member 233 forward and backward. (Not shown).

  The movable member 233 supports the cover 150 at the tip, and an extended position where the cover 150 is installed on the tray 100 and a contracted position where the cover 150 is retracted upward from the tray 100 by the actuator. Can be taken.

The actuator can be controlled by the controller 90.
In this case, the internal quality determination system 1 includes a cover installation position sensor (not shown) that detects that one tray 100 has reached a predetermined cover installation position, and the one tray 100 is conveyed from the measurement region 10B. A cover removal position sensor (not shown) for detecting that a predetermined cover removal position on the downstream side in the direction is reached is provided.

  Then, the control device 90 operates the actuator so that the movable member 233 takes the extended position based on the signal from the cover installation position sensor, and the movable member 233 operates based on the signal from the cover removal position sensor. The actuator is actuated to take the contracted position.

Preferably, a buffer member (not shown) that is elastically deformable in the vertical direction, such as a spring or rubber, can be inserted between the support column 170 of the cover 150 and the support column 115 of the tray 100.
By providing the buffer member, it is possible to effectively cope with individual differences in the measurement object 300.

ON / OFF of light emission of the upper light emitting unit 30U and the lower light emitting unit 30D is controlled by the control device 90.
That is, as shown in FIGS. 1 and 2, the internal quality determination system 1 according to the present embodiment detects that one tray 100 transported by the transport mechanism 10 has reached the measurement region 10B. An area sensor 190 is provided.

  When the control device 90 detects that one tray 100 has reached the measurement region 10B based on a signal from the measurement region sensor 190, the control device 90 causes the upper light emitting unit 30U and the lower light emitting unit 30D to emit light simultaneously, Spectral information of transmitted light received by the first and second light receiving units 50 (1) and 50 (2) is input from the spectroscopic device 70.

Preferably, a measurement space including one tray 100 reaching the measurement region 10B, the upper light emitting unit 30U, the lower light emitting unit 30D, the first light receiving unit 50 (1), and the second light receiving unit 50 (2). 20 can be in a dark room state.
According to such a configuration, the influence of disturbance light can be prevented as much as possible.

  The internal quality determination system 1 according to the present embodiment further includes a sorting area sensor 192 that detects that one tray 100 transported by the transport mechanism 10 has reached the sorting area 10C.

  When the control device 90 detects that one tray 100 has reached the sorting area 10C based on a signal from the sorting area sensor 192, the determination result of the measurement object 300 placed on the one tray 100 is determined. Can be displayed on the display means 95 such as a monitor.

  According to such a configuration, the operator can sort the measurement object 300 on the one tray 100 based on the determination result displayed on the display unit 95.

  Instead, the internal quality determination system 1 includes a payout mechanism (not shown) that pays out the measurement object 300 from the transport mechanism 10 to the corresponding sorting position in the sorting area 10C, and the control device 90 includes: The payout mechanism may be configured to operate based on the internal quality determination result.

  In the present embodiment, as described above, the control device 90 causes the upper light projecting unit 30U and the lower light projecting unit 30D to emit light simultaneously when one tray 100 reaches the measurement region 10B. However, instead of this, the light emission timings of the upper light emitting unit 30U and the lower light emitting unit 30D can be made different.

In this case, the control device 90 is configured to control the transport operation of the transport mechanism 10.
That is, the control device 90 causes only one of the upper light projecting unit 30U and the lower light projecting unit 30D to emit light while the transport mechanism 10 is stopped when one tray 100 reaches the measurement region 10B. Spectral information of only the transmitted light by the light from the one light projecting unit is input via the spectroscopic device 70, and thereafter, the light emission of the one light projecting unit is stopped and only the other light projecting unit is emitted. The spectral information of only the transmitted light by the light from the other light projecting unit is input via the spectroscopic device 70.

  According to such a modification, the control device 90 can determine the internal quality of the upper half of the measurement object 300 based only on the transmitted light from the light from the upper light projecting unit 30U, and from the lower light projecting unit 30D. The internal quality of the lower half of the measurement object 300 can be determined based only on the transmitted light by the light.

  In this modification, if the spectroscopic device 70 includes the first and second spectroscopes 72 (1) and 72 (2) as shown in FIG. 7, only the upper light projecting unit 30U emits light. Based on the first spectroscopic information from the first spectroscope 72 (1) in the state, the quality of ¼ on the upper side and one side in the transport width direction of the inside of the measurement object 300 is determined as the second spectroscope 72 ( Based on the second spectral information from 2), it is possible to respectively determine the ¼ quality on the upper side and the other side in the conveyance width direction of the measurement object 300.

  Similarly, the lower side of the measurement object 300 and the conveyance width direction based on the first spectral information from the first spectroscope 72 (1) in a state where only the lower light projecting unit 30D emits light. The ¼ quality on one side is set to the ¼ quality on the lower side in the measurement object 300 and on the other side in the transport width direction based on the second spectral information from the second spectroscope 72 (2). Each can be judged.

Embodiment 2
Hereinafter, another embodiment of the internal quality determination system according to the present invention will be described with reference to the accompanying drawings.
9 and 10 are a schematic plan view and a schematic side view of the internal quality determination system 2 according to the present embodiment, respectively.
FIG. 11 is a schematic cross-sectional view of the internal quality determination system 2 taken along the line XI-XI in FIG.
In the figure, substantially the same members as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted as appropriate.

  In the internal quality determination system 2 according to the present embodiment, the upper light projecting unit 30U and the lower light projecting unit 30D are installed at different positions in the transport direction of the transport mechanism 10, and the light receiving unit First and second light receiving units 50U (1) and 50U (2) for the upper light projecting unit 50 that receive the transmitted light that is projected from the upper light projecting unit 30U and transmitted through the measurement object 300, and the lower side The lower light projecting unit first and second light receiving units 50D (1) and 50D (2) that receive the transmitted light that has been projected from the light projecting unit 30D and transmitted through the measurement object 300. However, it is different from the internal quality determination system 1 according to the first embodiment.

  Specifically, as shown in FIG. 10, the upper light projecting unit 30 </ b> U is disposed in the upper measurement region 10 </ b> B (U) in the transport direction in the transport mechanism 10, and the lower light projecting unit 30 </ b> D is disposed in the transport mechanism 10. Is arranged in a lower measurement region 10B (D) different from the upper measurement region 10B (U) with respect to the transport direction.

  In the present embodiment, as shown in FIG. 10, the upper measurement region 10B (U) is set upstream of the lower measurement region 10B (D) in the transport direction. It is also possible to set the upper measurement area 10B (U) on the downstream side in the transport direction from the lower measurement area 10B (D).

  As shown in FIG. 9, the first and second light receiving portions 50U (1) and 50U (2) for the upper light projecting portion are arranged in the transport width direction with the transport mechanism 10 interposed in the upper measurement region 10B (U). The measurement object 300 is irradiated from the upper light projecting unit 30U and the transmitted light transmitted through the upper part of the measurement object 300 is received.

  On the other hand, the first and second light receiving portions 50D (1) and 50D (2) for the lower light projecting portion are arranged opposite to each other in the transport width direction with the transport mechanism 10 in the lower measurement region 10B (D). In addition, the transmitted light that is applied to the measurement object 300 from the lower light projecting unit 30D and passes through the lower part of the measurement object 300 is received.

  In the present embodiment, when the control device 90 detects that one tray 100 has reached the upper measurement region 10B (U) based on a signal from the upper measurement region sensor 190 (U), the upper light projection is performed. The spectral information of the transmitted light that is emitted from the unit 30U and transmitted through the measurement object 300 and received by the first and second light receiving units 50U (1) and 50U (2) for the upper light projecting unit. 70, and when it is detected that one tray 100 has reached the lower measurement region 10B (D) based on a signal from the lower measurement region sensor 190 (D), the lower light projecting unit 30D is Spectral information of transmitted light that is emitted and transmitted through the measurement object 300 and received by the first and second light receiving units 50D (1) and 50D (2) for the lower light projecting unit is transmitted from the spectroscopic device 70. Configured to enter That.

  According to the internal quality determination system 2 having such a configuration, the quality determination of the upper half and the lower half of the inside of the measurement object 300 can be performed individually.

Preferably, one tray 100 that has reached the upper measurement region 10B (U), the upper light emitting unit 30U, the first light receiving unit 50U (1) for the upper light projecting unit, and the second light receiving unit 50U for the upper light projecting unit. The upper measurement space 20U including (2) and the one tray 100 that has reached the lower measurement region 10B (D), the lower light emitting unit 30D, and the first light receiving unit 50D (1) for the lower light projecting unit. In addition, the lower measurement space 20D including the second light receiving unit 50D (2) for the lower light projecting unit can be set in a dark room state.
According to such a configuration, the influence of disturbance light can be prevented as much as possible.

  As shown in FIG. 12, the spectroscopic device 70 is optically connected to the first light receiving unit 50U (1) for the upper light projecting unit and the first light receiving unit 50D (1) for the lower light projecting unit. The first spectroscope 72 (1) for the one-side light receiving unit in the transport width direction, the second light receiving unit 50U (2) for the upper light projecting unit, and the second light receiving unit 50D (2) for the lower light projecting unit. The second spectroscope 72 (2) for the light receiving part on the other side in the transport width direction that is optically connected may be modified.

  According to the modification 2 ′ shown in FIG. 12, the first spectral information from the first spectroscope 72 (1) in the state where the upper light projecting unit 30U emits light in the upper measurement region 10B (U). Based on the second spectral information from the second spectroscope 72 (2), the quality of the upper side of the inside of the measuring object 300 and one side in the conveyance width direction is set to ¼ of the quality inside the measuring object 300. The ¼ quality on the upper side and the other side in the conveyance width direction can be determined.

  Similarly, based on the first spectral information from the first spectroscope 72 (1) in a state where the lower light projecting unit 30D emits light in the lower measurement region 10B (D), the measurement object 300 is measured. The lower side of the inside and the ¼ quality on the one side in the conveyance width direction is determined based on the second spectral information from the second spectroscope 72 (2). The ¼ quality on the other side can be determined respectively.

  In each of the above embodiments, the light receiving unit 50 (1), 50 (2) (50U (1), 50U (2) is connected to the tip of an optical fiber whose rear end is optically connected to the spectroscopic device 70. , 50D (1), 50D (2)), the present invention is not limited to such a form, and the hyperspectral camera is connected to the light receiving units 50 (1), 50 (2) (50U ( 1), 50U (2), 50D (1), 50D (2)). In this case, the spectroscopic device 70 is omitted.

1, 1 ′, 2, 2 ′ Internal quality determination system 10 Transport mechanism 10B Measurement region 30U Upper light projecting unit 30D Lower light projecting unit 50 (1) First light receiving unit 50 (2) Second light receiving unit 50U (1) First light receiving part 50U (2) for the upper light projecting part Second light receiving part 50D (1) for the upper light projecting part First light receiving part 50D (2) for the lower light projecting part Second light receiving part for the lower light projecting part 70 Spectrometer 71 Common Spectrometer 72 (1) First Spectrometer 72 (2) Second Spectrometer 90 Control Device 100 Tray 130 Receiving Seat 131 Main Surface 135 Opening or Slit 150 Cover 160 Shielding Wall 165 Opening or Slit 300 Measurement object

Claims (12)

A tray having a receiving portion including a main surface on which a measurement object is placed, a transport mechanism that transports the plurality of trays in series, and the transport mechanism in a measurement region provided in the middle of transport of the transport mechanism And an upper light projecting unit and a lower light projecting unit that project measurement light toward the object to be measured, and are disposed to oppose each other in the transport width direction across the transport mechanism in the measurement region. First and second light receiving units, and a control device for determining the internal quality of the measurement object based on the transmitted light received by the first and second light receiving units,
The receiving portion is provided with an opening or a slit that allows the measuring object to be irradiated with the measurement light from the lower light projecting portion,
The tray irradiates the measurement object from the lower light projecting unit through the opening or slit, and transmits the transmitted light that has passed through the measurement object and the measurement object from the upper light projecting unit and measures the measurement. An internal quality determination system configured to allow transmitted light that has passed through an object to travel toward the first and second light receiving units. It has a shielding wall portion provided with an opening or slit corresponding to the opening or slit, and includes a cover that is separably installed on the tray so as to cover the top of the measurement object by the shielding wall portion,
The tray and the cover are transmitted from the lower light projecting unit through the opening or slit of the tray and transmitted through the measurement object, and the upper side of the cover through the opening or slit. The transmission light irradiated from the light projecting part and transmitted through the measurement object is configured to allow the light to travel toward the first and second light receiving parts. Internal quality judgment system.   The control device is configured to control operation of the upper light projecting unit and the lower light projecting unit, and when one tray reaches the measurement region, the upper light projecting unit and the lower light projecting unit are configured. The internal quality determination system according to claim 1, wherein the units emit light simultaneously.   The control device is configured to control operation of the transport mechanism, the upper light projecting unit, and the lower light projecting unit, and stops the transport mechanism when one tray reaches the measurement region. In this state, only one of the upper light projecting unit and the lower light projecting unit is caused to emit light, and the measurement is based on the transmitted light only from the one light projecting unit received by the first and second light receiving units. While determining the internal quality of the upper and lower one side portion where the one light projecting unit is located in the interior of the object, the light emission of the one light projecting unit is stopped and only the other light projecting unit is emitted, The internal quality of the upper and lower other side portions where the other light projecting unit is located in the interior of the measurement object based on the transmitted light only received from the other light projecting unit received by the first and second light receiving units. The apparatus is configured to determine Internal quality determination system according to 2. A spectroscopic device that is optically connected to the first and second light receiving units and generates spectral information by splitting the transmitted light from the measurement object received by the first and second light receiving units;
5. The internal quality determination system according to claim 1, wherein the control device determines an internal quality of a measurement object based on spectral information from the spectroscopic device.   The internal quality determination system according to claim 5, wherein the spectroscopic device includes a common spectroscope that inputs light received by the first and second light receiving units in a mixed state.   The spectroscopic device is optically connected to the first light receiving unit, and generates a first spectroscopic information by splitting the transmitted light received by the first light receiving unit, and the second light receiving unit. And a second spectroscope for generating second spectroscopic information by splitting the transmitted light received by the second light receiving unit. The internal quality judgment system described. In the upper measurement area provided in the middle of the conveyance of the tray, a tray having a receiving portion including a main surface on which the measurement object is placed, a plurality of trays in series, and the conveyance mechanism. An upper light projecting unit that projects measurement light toward the measurement object from above the mechanism, and an upper light projecting unit for the upper light projecting unit disposed in the upper measurement region so as to face each other across the transport mechanism in the transport width direction. 2 a light receiving unit, a lower light projecting unit that projects measurement light toward a measurement object from below the transport mechanism in a lower measurement region different from the upper measurement region in the transport direction of the transport mechanism, and the lower light projecting unit In the side measurement region, the first and second light receiving parts for the lower light projecting part, the first and second light receiving parts for the upper light projecting part, and the lower side disposed opposite to each other in the transport width direction across the transport mechanism. Received by the first and second light receiving parts for the light projecting part And a determining control the internal quality of the measurement object based on the excessive light,
The receiving portion is provided with an opening or a slit that allows the measuring object to be irradiated with the measurement light from the lower light projecting portion,
The tray is irradiated with a measurement object from the lower light projecting unit through the opening or slit, and transmitted light transmitted through the measurement object is transmitted to the first and second light receiving units for the lower light projecting unit. The transmitted light that is allowed to travel toward the measurement object and is transmitted through the measurement object from the upper light projecting unit toward the first and second light receiving units for the upper light projecting unit. An internal quality determination system configured to allow progress. It has a shielding wall portion provided with an opening or slit corresponding to the opening or slit, and includes a cover that can be installed on the tray so as to cover the top of the measurement object by the shielding wall portion,
In the tray and the cover, transmitted light that is irradiated from the lower light projecting unit through the opening or slit of the tray to the measurement object and transmitted through the measurement object is used for the first and lower light projecting units. Allowing the light to travel toward the second light receiving unit, and the transmitted light that is irradiated from the upper light projecting unit through the opening or slit of the cover and transmitted through the measurement target is the upper side. 9. The internal quality determination system according to claim 8, wherein the internal quality determination system is configured to allow the light to travel toward the first light projecting unit and the second light receiving unit. Optically connected to the first and second light receiving units for the upper light projecting unit and the first and second light receiving units for the lower light projecting unit, the first and second light receiving units for the upper light projecting unit, and the A spectroscopic device for generating spectroscopic information by splitting the transmitted light from the measurement object received by the first and second light receiving units for the lower light projecting unit;
10. The internal quality determination system according to claim 8, wherein the control device determines an internal quality of a measurement object based on spectral information from the spectroscopic device. 11. The spectroscopic device inputs the light received by the first and second light receiving parts for the upper light projecting part in a mixed state and receives the light by the first and second light receiving parts for the lower light projecting part. A common spectrometer that inputs the mixed light in a mixed state,
The control device is configured to control operation of the upper light projecting unit and the lower light projecting unit, and when one tray reaches the upper measurement region, the upper light projecting unit is caused to emit light, Spectral information of transmitted light that has passed through the measurement object and received by the first and second light receiving units for the upper light projecting unit is input from the common spectrometer, and one tray is placed in the lower measurement region. When the light reaches, the lower light projecting unit emits light, and the spectral information of the transmitted light transmitted through the measurement object and received by the first and second light receiving units for the lower light projecting unit is transmitted from the common spectrometer. The internal quality determination system according to claim 10, wherein the internal quality determination system is configured to input. The spectroscopic device is optically connected to the first light receiving unit for the upper light projecting unit and the first light receiving unit for the lower light projecting unit, and the first light receiving unit for the upper light projecting unit and the lower light projecting unit. A first spectroscope for generating first spectroscopic information by splitting the transmitted light received by the first light receiving unit, and a second light receiving unit for the upper light projecting unit and a second light for the lower light projecting unit. A second optical information is generated which is optically connected to the light receiving unit and splits the transmitted light received by the second light receiving unit for the upper light projecting unit and the second light receiving unit for the lower light projecting unit. Two spectrometers,
The control device is configured to control operation of the upper light projecting unit and the lower light projecting unit, and when one tray reaches the upper measurement region, the upper light projecting unit is caused to emit light, Spectral information of transmitted light that has passed through the measurement object and received by the first light receiving unit for the upper light projecting unit is input from the first spectrometer and received by the second light receiving unit for the upper light projecting unit. The spectral information of the transmitted light is input from the second spectroscope, and when one tray reaches the lower measurement region, the lower light projecting portion is caused to emit light, pass through the measurement object, and transmit the lower light. Spectral information of transmitted light received by the first light receiving unit for the side light projecting unit is input from the first spectroscope and received by the second light receiving unit for the lower side light projecting unit. 11 is input from the second spectroscope. Quality determination system.

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