JP2019132826A - Weight measuring system and weight sorting system - Google Patents

Abstract

To efficiently measure the weight of each measuring object in such a mode that a plurality of measuring objects are conveyed on a conveyance device.SOLUTION: The system includes a tray which is configured so that a plurality of contents can be distributingly and two-dimensionally arranged, the conveyance device which guides the tray placed on a conveyance surface from an upstream side to a downstream side, an X-ray detection part which images the conveyance surface, a weight measuring part which is configured so as to measure the total weight of the tray placed on the conveyance surface and the contents arranged in the tray, and an arithmetic processing device to which image information detected by the X-ray detection part and total weight information corresponding to the total weight are inputted. The arithmetic processing device estimates the weight of each content on the basis of the ratio of the weight of each individual content distributingly arranged in the tray calculated on the basis of the image information and the total weight.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a weight measurement system and a weight sorting system, and more particularly to a system for measuring the weight of contents such as fruits and vegetables flowing through a transport device such as a conveyor, and a system for sorting based on the measurement result.

  2. Description of the Related Art Conventionally, contents for placing fruits and vegetables on a conveying device that conveys fruits and vegetables at a constant speed, transmitting X-rays, detecting the state of fruits and vegetables, and sorting by grade are described (for example, Patent Documents). 1).

Japanese Patent Laid-Open No. 8-242681

  However, the method described in Patent Document 1 performs grade selection based on the presence or absence of internal cavities by individually irradiating fruits and vegetables such as radishes onto a conveying device and irradiating them with X-rays. . For this reason, the objects to be measured must be transported in a row and at a predetermined interval on the transport device, which is not efficient.

  Patent Document 1 describes that the weight measurement of fruits and vegetables conveyed on the conveying device is performed using a high-precision camera or a high-precision weight measuring device. That is, according to the method of Patent Document 1, the object to be measured must be transported in a state of being arranged in a row and at a predetermined interval when sorting by weight, which is not efficient.

  In view of the above problems, the present invention provides a weight that enables the weight of each object to be measured to be efficiently measured in a mode in which a plurality of objects to be measured (such as fruits and vegetables) are transported on the transport device. The purpose is to realize a measurement system. It is another object of the present invention to provide a weight sorting system that efficiently sorts each object to be measured for each predetermined class based on the result measured by the above method.

The weight measurement system according to the present invention includes:
A tray configured such that a plurality of contents can be dispersedly arranged in a plane;
A transport device that guides the tray placed on the transport surface from the upstream side to the downstream side;
An X-ray detector for imaging the transport surface;
A weight measuring unit configured to measure a total weight of the tray placed on the transport surface and the contents arranged in the tray; and
An arithmetic processing unit to which image information captured and detected by the X-ray detection unit and total weight information corresponding to the total weight are input;
The arithmetic processing unit calculates the weight of each of the contents based on the weight ratio of each of the contents dispersedly arranged in the tray calculated based on the image information and the total weight. It is characterized by estimating.

  According to said method, the weight of each content arrange | positioned in a tray can be estimated under the state which accommodates several content and is conveyed per tray. Thereby, the weight of each content can be detected efficiently.

  It is preferable that the tray has a surface on which the contents are placed, which is a flat surface having depressions dispersedly. In this case, by placing the contents in the hollow portion, the overlapping of the contents is suppressed, and the accuracy of the separation of the contents based on the image information obtained by the X-ray detection unit, and the contents The estimation accuracy of the weight is improved.

  The X-ray detection unit may include an X-ray generation unit and an X-ray line scanner that are arranged at positions facing each other with the conveyance surface interposed therebetween.

The arithmetic processing unit includes:
A storage unit for storing the weight of the tray according to an initial state in which the contents are not arranged;
Based on binary information of the image information, an image processing unit that identifies the outer edges of each of the plurality of contents dispersedly arranged in the tray and cuts the contents into individual contents on the image information;
Based on the binary information of the image information, the ratio of the weight of each of the contents distributed in the tray divided on the image information is calculated, and the total weight information inputted Subtracting the weight of the tray from the total weight determined on the basis of the weight, and then dividing the weight by the proportion of the weight of each of the contents, thereby distributing each of the contents distributed in the tray. And a weight estimation unit that estimates the weight of each of them.

The weight measurement system includes:
An identification information reading device configured to read individual identification information attached to each tray and to be output to the arithmetic processing device,
The arithmetic processing unit is configured to store information on the weight of each of the contents estimated by the weight estimation unit in the storage unit in association with identification information of the tray on which the contents are arranged. It doesn't matter.

  According to said structure, the weight of each of several content arrange | positioned at each tray can be estimated and memorize | stored per tray.

A weight selection system according to the present invention includes the above-described weight measurement system,
The arithmetic processing unit is further configured to classify each of the contents into a class corresponding to the range based on a range to which the weight of each of the contents estimated by the weight estimation unit belongs. With
The weight sorting system includes a sorting result output unit that outputs information corresponding to the sorting result in the class sorting unit so as to be visible in the vicinity of the transport device,

  According to the above configuration, the worker who performs the sorting work sorts the plurality of contents stored in the tray for each class based on the information corresponding to the sorting result output by the sorting result output unit. be able to.

In the weight sorting system,
The transport device includes a work area for sorting a plurality of the contents housed in the tray transported from the upstream side,
The sorting result output unit can irradiate a plurality of the contents stored in the tray located in the work area with an optical signal including information corresponding to the class to which the contents correspond. The information output light source may be included.

  More specifically, the information output light source can be realized by a light source device including an LED (light emitting diode) element or a laser element. For example, when there are three types of “L”, “M”, and “S” depending on the weight as the class, the class of the content is placed on the surface of each content arranged in the tray. An optical signal may be output from the information output light source so that the corresponding characters, that is, the characters “L”, “M”, and “S” emit light. As another example, a light signal of a different color according to the class may be output from the information output light source on the surface of each content arranged in the tray.

The weight selection system includes a desired class input unit that receives a desired class signal, which is a signal related to the class desired to be selected,
The sorting result output unit is only for the contents belonging to the class corresponding to the desired class signal input from the desired class input unit among the plurality of contents stored in the tray. The light signal may be irradiated.

  According to this configuration, it is possible to selectively make only the contents belonging to a specific class out of the plurality of contents stored in the same tray. Thereby, the worker improves the work efficiency when performing the sorting work for each class.

The weight sorting system includes an identification information reading device configured to read individual identification information attached to each tray and to be output to the arithmetic processing unit,
The arithmetic processing unit includes:
Information corresponding to the sorting result in the class sorting unit is stored in the storage unit in association with the identification information of the tray,
It is configured to be able to accept input of specific identification information, which is a signal corresponding to the identification information of the tray to be output as a sorting result,
The sorting result output unit specifies the tray corresponding to the specific identification information, and information corresponding to the sorting result related to the plurality of contents contained in the specified tray from the storage unit. The optical signal may be irradiated only to the contents belonging to the class corresponding to the desired class signal input from the desired class input unit.

  According to the above configuration, even when a plurality of trays are transported on the transport device at the same time, only contents belonging to a specific class among a plurality of stored contents are selectively selected for each tray. Can stand out. For this reason, a plurality of work areas are provided, and even when a plurality of workers perform sorting work in parallel, each worker has a tray that exists in a work area close to his / her position. Only the contents belonging to a desired class can be made conspicuous from among the plurality of contents accommodated in the interior. As a result, the contents can be efficiently sorted.

  In this configuration, each work area may be provided in parallel or in series. In the latter case, for example, only the L-size contents are sorted in the upstream work area, and after that, once again transported on the transport device and arrive at the downstream work area, only the M-size contents are sorted next. It is possible to adopt a mode of being.

  The weight measurement unit may be disposed between the X-ray detection unit and the work area.

  With the above configuration, it is possible to move away the worker who performs the sorting work near the work area from the area irradiated with X-rays. Thereby, the mental and psychological burden to the worker for using X-rays is reduced.

  The contents may be fruits and vegetables. Examples include fruits and vegetables such as strawberries, asparagus, tomatoes, and strawberries.

Moreover, the weight selection system according to the present invention includes the weight measurement system,
The arithmetic processing unit includes:
Based on the estimated range to which each of the contents belongs, each of the contents is sorted into a class corresponding to the range, and information corresponding to the sorting result is transmitted to the storage unit. The class selector,
Based on the information stored in the storage unit, a class-specific number calculation that calculates the number of the contents placed on the plurality of trays that have passed through the X-ray detection unit within a predetermined period by the class. And a section.

  According to such a configuration, the number of contents of each content placed on the plurality of trays that have passed through the X-ray detection unit is calculated. For this reason, if strawberry is given as an example of the contents, information such as today that the number of L-sized strawberries is extremely large or the number of M-sized strawberries is relatively small can be recognized at the stage before sorting. it can.

  Generally, with regard to fruits and vegetables such as strawberries, there are many times when the time zone that is brought into the selection hall within a day is determined. For this reason, since fruits and vegetables are brought in from many producers at once, it takes a certain amount of time to complete a series of operations from acceptance to sorting. On the other hand, in particular, the process of measuring the weight by the X-ray detector and the process of sorting by class based on the measured weight can be performed in a very short time. In other words, according to the above configuration, since the number of fruits and vegetables by class on that day (or up to a specific time zone) can be grasped before a series of operations on that day is completed, various processes can be performed based on this information. It can be carried out.

  As an example, the arithmetic processing unit may include a shipment plan formulation unit that calculates a shipment quantity for each shipping destination based on a result calculated by the distinct class number calculation unit. According to such a configuration, the shipping plan formulation unit, for example, profits based on the information on the most recent market price in each region and the information on the number of fruits and vegetables by class that exist at the present time calculated by the class distinction number calculation unit. The shipping destination can be determined so as to be the highest.

As another example,
The weight sorting system includes an identification information reading device configured to read individual identification information attached to each tray and to be output to the arithmetic processing unit,
The arithmetic processing unit includes:
Information related to the weight of each of the contents estimated by the weight estimation unit is stored in the storage unit in association with identification information of the tray in which the content is arranged,
The class distinction number calculation unit may calculate the number of contents by the class for each producer who has produced the contents in the tray, based on the identification information attached to the tray. I do not care.

  According to such a configuration, the number for each class with respect to the entire contents brought in for each producer is calculated at a stage prior to completion of the sorting operation. Thereby, for example, the details relating to the transaction cost can be immediately created by multiplying the calculated number of individual classes for each producer by the cost for each class.

As another example,
The transport device includes a plurality of work areas for sorting a plurality of the contents housed in the tray transported from the upstream side,
The arithmetic processing unit may include a sorting target specifying unit that designates the class to be sorted in each of the plurality of work areas based on a result calculated by the class distinct number calculating unit. I do not care.

  According to such a configuration, when the fruits and vegetables brought in on the day have, for example, an extremely large number of L sizes and a small number of M sizes, the number of areas to be sorted in the L size is increased in the sorting target specifying unit. Then, a process of reducing the number of areas for performing the M size sorting is performed. Thereby, sorting work can be performed efficiently.

As another example,
A storage area in which the tray after being imaged by the X-ray detection unit is temporarily stored;
The plurality of work areas are areas for sorting a plurality of the contents housed in the tray conveyed from the storage area,
The arithmetic processing unit grasps the number of the contents placed on the plurality of trays stored in the storage area for each class based on the result calculated by the class distinct number calculation unit. At the same time, a work plan formulation unit that calculates the number of workers required for sorting in the work area may be provided.

  According to such a configuration, since the number of contents currently existing in the storage area can be grasped by class, the work plan formulation unit is necessary for the sorting work of the day according to the number of contents. Recognize the number of personnel and work time required for sorting. Thereby, a flexible work instruction can be given to the worker.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to measure the weight of each to-be-measured object efficiently in the aspect in which the to-be-measured object is conveyed on the conveying apparatus. Moreover, based on the result measured by the method described above, it is possible to efficiently sort each object to be measured for each predetermined class.

It is a typical top view of the weight selection system concerning a first embodiment. It is the typical front view and block diagram of the weight selection system which concern on 1st embodiment. FIG. 3 is a perspective view schematically showing a structural example of a tray 5. 3B is a schematic perspective view showing a state in which a plurality of contents 6 are arranged on the tray 5 shown in FIG. 3A. FIG. It is drawing which shows typically a mode that the character of "L" was projected on the surface of the said content 6 with respect to the content 6 determined that the class belonged to L size. It is a typical top view of the weight selection system concerning a second embodiment. It is the typical front view and block diagram of the weight selection system which concern on 2nd embodiment. It is a typical top view of the weight selection system concerning a third embodiment. It is the typical front view and block diagram of the weight selection system which concern on 3rd embodiment. It is another schematic top view of the weight selection system which concerns on 3rd embodiment. It is a typical top view of the weight selection system concerning a 4th embodiment. It is a typical top view of the weight selection system concerning a 4th embodiment. It is a functional block diagram which shows typically the structure of the arithmetic processing apparatus which the weight selection system which concerns on 4th embodiment has. It is a functional block diagram which shows typically another structure of the arithmetic processing apparatus which the weight selection system which concerns on 4th embodiment has. It is a functional block diagram which shows typically another structure of the arithmetic processing apparatus which the weight selection system which concerns on 4th embodiment has. It is a typical top view of the weight selection system concerning another embodiment. It is the typical front view and block diagram of the weight selection system which concern on another embodiment.

  Embodiments of a weight measurement system and a weight selection system according to the present invention will be described with reference to the drawings as appropriate. The following drawings are all schematically shown, and the dimensional ratios on the drawings do not necessarily match the actual dimensional ratios. In addition, the dimensional ratio does not always match between the drawings.

[First embodiment]
FIG. 1 is a schematic top view of a weight sorting system according to the first embodiment. 2 is a schematic front view and block diagram of the weight selection system of FIG. In FIG. 2, the flow of the information signal is indicated by a broken line, and the flow of the optical signal is indicated by a one-dot chain line.

  The weight sorting system 1 according to the present embodiment includes a transport device 3, a tray 5, an X-ray detection unit 7, a weight measurement unit 9, an arithmetic processing device 10, and a sorting result output unit 21.

(Conveyor 3)
The transport device 3 guides the tray 5 placed on the transport surface 3a from the upstream side to the downstream side. Hereinafter, on the transport surface 3a, the direction from the upstream side to the downstream side is described as "A1 direction", the direction orthogonal to the A1 direction is described as "A2 direction", and the direction orthogonal to the transport surface 3a is described as "A3 direction". To do.

(Tray 5)
The tray 5 is configured such that a plurality of contents 6 can be dispersedly arranged in a plane. FIG. 3A is a perspective view schematically showing a structural example of the tray 5. The tray 5 includes a box body 61 and a plate-like member 62 that is accommodated in the box body 61 and in which a plurality of depressions 63 are provided in a planar manner. FIG. 3B is a schematic perspective view showing a state in which a plurality of contents 6 are arranged on the tray 5. FIG. 3B illustrates the case of a strawberry as an example of the contents 6.

  The plate-like member 62 is suitable to be able to be uniformly and thinly molded while maintaining a certain strength so that the proportion of X-ray absorption can be reduced. It is preferable that it is comprised with the material below the extent equivalent to the X-ray absorption amount of fruit. Examples of such materials include celluloid resin, acrylic resin, polycarbonate resin, polyethylene resin, polystyrene resin, and the like.

  The box body 61 has a structure in which only the top surface is opened and has a bottom surface and a side surface, and the plate-like member 62 may be placed on the top surface of the bottom surface. In this case, at least on the bottom surface of the box body 61, similarly to the plate-like member 62, a certain strength is provided so that the proportion of X-ray absorption can be reduced compared to the contents 6 (for example, fruits such as strawberries). A material that can be uniformly and thinly shaped while maintaining it is suitable, and a material that does not have unevenness such as reinforcing ribs is preferable so that X-rays can be transmitted without unevenness.

  Note that the tray 5 is not limited to the shape illustrated in FIGS. 3A to 3B as long as a plurality of contents 6 can be dispersedly arranged in a plane, and the shape is arbitrary. In the present specification, “planarly dispersible arrangement” means not only a case where it can be dispersively arranged on the same plane in a strict sense, but also a part of the plate-like member 62 being curved. This includes a case where the height positions are slightly different (for example, within a range of less than 5% with respect to the height of the contents 6), but are recognized as being substantially distributed on the plane.

(X-ray detection unit 7)
The X-ray detection unit 7 includes an X-ray generation unit 7a and an X-ray line scanner 7b disposed at positions facing the A3 direction across the transport surface 3a of the transport device 3.

  The X-ray generation unit 7a is disposed above the transport surface 3a of the transport device 3 (+ A3 direction side), and faces the X-ray line scanner 7b disposed below the transport surface 3a (−A3 direction side). Then, X-ray 7L is irradiated. As the X-ray generator 7a, a known X-ray generator can be used.

  The X-ray line scanner 7 b is disposed below the transport device 3 (−A3 direction side), and detects X-rays 7 L that have traveled through the tray 5. The X-ray line scanner 7b includes, for example, a plurality of photoelectric conversion elements (for example, photodiodes) arranged in the A2 direction, that is, the width direction of the conveyance surface 3a on the conveyance surface 3a of the conveyance device 3, and the photoelectric conversion elements. And a scintillator provided on the top. When the scintillator receives the X-ray 7L, the scintillator converts it into light having a wavelength within a range that can be received by the photoelectric conversion element, and causes the converted light to enter the photoelectric conversion element. The photoelectric conversion element converts the signal into an electric signal (binary signal) having an intensity corresponding to the amount of received light and outputs the electric signal to the arithmetic processing unit 10. This electrical signal corresponds to the image information d7 shown in FIG.

(Weight measuring unit 9)
The weight measuring unit 9 measures the total weight of the tray 5 and the contents 6 flowing on the transport device 3. The weight measuring unit 9 is composed of, for example, a load cell, a force sensor, and the like. Information (synthetic weight information) d9 relating to the total weight measured by the weight measuring unit 9 is input to the arithmetic processing unit 10.

  Note that the X-ray detection unit 7 and the arithmetic processing device 10 and the weight measurement unit 9 and the arithmetic processing device 10 may be connected by wire or wirelessly. In the case of wireless, it can be configured to be communicable based on Bluetooth (registered trademark), Wi-fi (registered trademark), and other known standards.

(Arithmetic processing device 10)
In the present embodiment, the arithmetic processing device 10 includes a storage unit 13, an image processing unit 14, a weight estimation unit 15, and a class selection unit 16. The arithmetic processing device 10 is realized by a computer, for example, and the storage unit 13 is configured by a memory or a hard disk. The image processing unit 14, the weight estimation unit 15, and the class selection unit 16 are all arithmetic processing units that perform predetermined arithmetic processing based on input information, and are configured by software or hardware.

  The storage unit 13 stores the weight of the tray 5 according to an initial state where the contents 6 are not arranged. The tray 5 is assumed to be used repeatedly, and there is a possibility that the weight may change over time due to wear or the like when transported on the transport device 3 or during other transport. is there. For this reason, the weight of the tray 5 may be measured in advance before the contents 6 are arranged, and the measurement result may be stored in the storage unit 13.

  The image processing unit 14 performs predetermined image processing based on the image information d <b> 7 input from the X-ray detection unit 7 and identifies the distribution state of the individual contents 6 arranged in the tray 5.

  The tray 5 that is placed and transported on the transport surface 3a has a finite length in the A1 direction (transport direction). When a certain amount of space exists between the trays 5 at the time of conveyance, the X-ray line scanner 7b does not have the light quantity of the X-rays 7L transmitted through the box body 61 of the tray 5 and the tray 5 to be received. There is a significant difference between the light quantity of the X-ray 7L transmitted through the transfer device 3 and received. The image processing unit 14 analyzes the image information d7 to detect a region where the difference in the electric signal due to the difference in the light amount is obvious, and specifies the outer edge portion of each tray 5 (first specification). processing).

  Further, on the plate-like member 62 of the tray 5, the amount of X-ray 7L received through the area where the contents 6 do not exist in the A2 direction and the area where the contents 6 exist are received and received. There is a significant difference between the light quantity of the X-ray 7L. The image processing unit 14 analyzes the image information d7 to detect a region where the difference in the electric signal due to the difference in the amount of light is manifested, so that each content arranged in the tray 5 is detected. 6 is specified (second specifying process).

  With this second specifying process, it is specified how the individual contents 6 are distributed and arranged in the tray 5 when the tray 5 is viewed from above. That is, a plurality of contents 6 arranged on each tray 5 specified on the image information by the first specifying process can be cut into individual contents 6 by the second specifying process.

  By the way, the thicker the content 6 arranged in the tray 5 (the length in the A3 direction) is, the more the X-ray 7L is absorbed by the content 6. On the contrary, the thinner the content 6 arranged in the tray 5 (the length in the A3 direction) is, the smaller the amount of X-rays 7L absorbed by the content 6 is.

  The weight estimation unit 15 analyzes the image information d7, and thereby determines the individual contents 6 based on the magnitude of the electric signal based on the amount of light received through the existence area of the individual contents 6 specified by the second specifying process. The thickness (the length in the A3 direction) is detected, that is, the relative thickness is detected. Furthermore, the weight estimation unit 15 integrates the detected relative thickness values in the existence area of the individual contents 6 specified by the second specifying process, for example, to perform relative processing of the individual contents 6. A specific size is estimated, and a weight ratio (estimated weight ratio) is calculated according to the relative size. Since the contents 6 (for example, strawberries) of the same variety are arranged in the tray 5, it is recognized that the larger the relative size, the heavier the weight. Note that when estimating the weight ratio, the estimated weight of each content 6 may be corrected using a predetermined correction coefficient.

  The weight estimation unit 15 reads the weight of the tray 5 in the initial state from the storage unit 13 and subtracts the weight of the tray 5 in the initial state from the combined weight information d9 input from the weight measurement unit 9. Thereby, the total weight of the plurality of contents 6 arranged on the tray 5 is calculated.

  Further, the weight estimation unit 15 performs a distribution process on the calculated total weight of the plurality of contents 6 at the calculated estimated weight ratio of the contents 6. Thereby, the weight of each content 6 is estimated.

  Based on the range to which the weight of each content 6 estimated by the weight estimation unit 15 belongs, the class selection unit 16 performs a process of selecting each content 6 into a class corresponding to the range. For example, the storage unit 13 stores information on a plurality of classes in association with weight ranges corresponding to the classes. The class selection unit 16 confirms which range each weight (estimated weight) estimated by the weight estimation unit 15 belongs to, and based on the information stored in the storage unit 13, The class to which the individual contents 6 belong is determined. As a class here, L / M / S etc. are mentioned, for example.

  The arithmetic processing device 10 transmits information related to the class to which the individual contents 6 belong, selected by the class selection unit 16, to the selection result output unit 21.

(Selection result output unit 21)
The sorting result output unit 21 outputs information corresponding to the sorting result in the class sorting unit 16 so as to be visible in the vicinity of the transport device 3, more specifically in the work area 20. The work area 20 is an area for the worker 30 to sort the plurality of contents 6 accommodated in the tray 5 for each class.

  In the present embodiment, the sorting result output unit 21 is configured by a light source device (light source for information output) including an LED (light emitting diode) element, a laser element, and the like, and an optical signal 21L corresponding to the sorting result is output to the tray 5. Irradiate against.

  Specifically, a method of irradiating the individual contents 6 with light 21L of a different color corresponding to the class, or irradiating the light 21L with characters and figures corresponding to the class by the surface of the individual contents 6 A method of projecting on or in the vicinity can be adopted. Further, as another method, a method of irradiating the contents 6 belonging to a specific class with light 21L of a different color according to the class or projecting characters or figures according to the class is adopted. obtain. FIG. 4 is a drawing schematically showing, as an example, a state in which a letter “L” is projected on the surface of the content 6 for which the class is determined to belong to the L size.

  According to such a configuration, the worker 30 can easily visually recognize to which class each of the plurality of contents 6 accommodated in the tray 5 belongs. Thereby, work efficiency in the case of performing sorting work for each class is improved.

[Second Embodiment]
Only a different part from 1st embodiment is demonstrated about 2nd embodiment of a weight selection system. FIG. 5 is a schematic top view of the weight sorting system according to the second embodiment. 6 is a schematic front view and block diagram of the weight selection system of FIG.

  The weight selection system 1 of the present embodiment is different from the first embodiment in that a desired class input unit 31 is further provided. The desired class input unit 31 includes an operation terminal configured to be operable by the worker 30, and among the plurality of contents 6 accommodated in the tray 5, information regarding a specific class desired by the worker 30. (Desired class signal d31) can be input. Information d31 input from the desired class input unit 31 is input to the arithmetic processing unit 10. That is, the desired class input unit 31 is configured to be able to exchange information with the arithmetic processing device 10. The desired class input unit 31 includes, for example, a tablet PC, a notebook PC, a smartphone, a dedicated touch panel device, and the like, and is configured to be capable of wireless communication connection with the arithmetic processing device 10.

  For example, the worker 30 transfers only the contents 6 belonging to the L size among the plurality of contents 6 accommodated in the tray 5 existing in the work area 20 to the packaging box for L size. Suppose you want. In this case, the worker 30 inputs a signal corresponding to the L size as the desired class signal d31 via the desired class input unit 31. As an example, when the desired class input unit 31 is configured by a smartphone, the worker 30 selects a desired class (L size in this example) from among a plurality of class candidates displayed on the screen. .

  When the arithmetic processing unit 10 receives the input of the desired class signal d31 corresponding to the L size, the arithmetic processing device 10 only applies to the content 6 corresponding to the L size among the plurality of contents 6 arranged on the tray 5. The sorting result output unit 21 is instructed to irradiate the optical signal 21L. As described above in the first embodiment, the arithmetic processing unit 10 recognizes the class to which each of the plurality of contents 6 arranged on the tray 5 belongs, so the contents 6 belonging to the L size class. An instruction can be given to the sorting result output unit 21 so that the optical signal 21L is emitted to the position where the signal is placed.

  According to the configuration of the present embodiment, among the plurality of contents 6 accommodated in the tray 5, only the contents 6 that have been selected as being L size by the class selection unit 16 can be selectively made conspicuous. Can do. For example, as illustrated in FIG. 4, the letter “L” is displayed only on the surface of the L-size contents 6. Based on this light display, the worker 30 has only to sort the contents 6 on which the letter “L” is currently displayed into the packaging box. Since the same processing is possible for the other classes, the description is omitted.

[Third embodiment]
Only a different part from 1st embodiment is demonstrated about 3rd embodiment of a weight selection system. FIG. 7 is a schematic top view of the weight selection system according to the third embodiment. FIG. 8 is a schematic front view and block diagram of the weight selection system of FIG.

  In the weight sorting system 1 of the present embodiment, a plurality of work areas 20 are arranged in series. In each work area 20 (20a, 20b,...), It is assumed that each worker 30 (30a, 30b,...) Performs a sorting work. In FIG. 7, an example in which one worker 30 performs the sorting work in one work area 20 is illustrated, but a plurality of workers 30 may perform the sorting work.

  In the present embodiment, information (identification information) for individually identifying each tray 5 is attached to each tray 5. This identification information can be pasted on the surface of each tray 5 in a form converted into a format such as a barcode or QR code (registered trademark), for example. In the following description, it is assumed that a barcode corresponding to the identification information of the tray 5 is attached on the surface of each tray 5.

  The weight sorting system 1 of the present embodiment is provided with bar code readers (41, 43) on the upstream side of the transfer device 3 and in the vicinity of the work area 20, respectively. Bar code readers (41, 43) are one mode of the identification information reading device. Bar code readers (41, 43) can automatically read a bar code stuck on the surface of the tray 5 that is placed on the transport surface 3 a of the transport device 3 and transported. The barcode reader 41 installed on the upstream side of the transport device 3 is disposed at least upstream of the X-ray detection unit 7. Bar code readers 43 (43a, 43b,...) Arranged in the vicinity of the work area 20 correspond to the work area identification information reading device.

  The bar code reader (41, 43) is configured to be able to exchange information with the arithmetic processing unit 10. That is, the barcode reader (41, 43) and the arithmetic processing unit 10 are configured to be able to communicate with each other by wire or wireless.

  When the bar code reader 41 reads a bar code attached to the tray 5 that is placed on the transport surface 3a of the transport device 3 and flows, the bar code reader 41 reads information (identification information i5) related to the bar code to the arithmetic processing unit 10. Send to. The arithmetic processing unit 10 recognizes the identification information i5 of the tray 5 corresponding to the information related to the barcode.

  The arithmetic processing apparatus 10 stores the image information d7 transmitted from the X-ray detection unit 7 and the combined weight information d9 transmitted from the weight measurement unit 9 in the storage unit 13 in association with the identification information i5. Further, the arithmetic processing device 10 also stores the results calculated in the weight estimation unit 15 and the class selection unit 16 on the basis of the image information d7 and the combined weight information d9 in the storage unit 13 in association with the identification information i5. .

  When the barcode reader 43 reads a barcode attached to the tray 5 that has arrived in the vicinity of the work area 20, the barcode reader 43 transmits information (identification information i <b> 5) related to the barcode to the arithmetic processing device 10. As shown in the example of FIG. 8, the barcode (identification information i5a) attached to the tray 5a that has arrived in the vicinity of the work area 20a is read by the barcode reader 43a and transmitted to the arithmetic processing unit 10. Similarly, the barcode (identification information i5b) attached to the tray 5b that has arrived in the vicinity of the work area 20b is read by the barcode reader 43b and transmitted to the arithmetic processing unit 10.

  For example, the worker 30a arranged in the work area 20a uses only the contents 6 belonging to the L size among the plurality of contents 6 accommodated in the tray 5a existing in the work area 20a. Suppose you want to transfer to the packaging box. In this case, as in the second embodiment, the worker 30a inputs a signal corresponding to the L size as the desired class signal d31 via the desired class input unit 31. At this time, information specific to the desired class input unit 31 or the work area 20 (here, the work area 20a) in which the desired class input unit 31 is installed is identified from the desired class input unit 31 to the arithmetic processing unit 10. Information to be transmitted is also transmitted.

  When receiving the desired class signal d31 corresponding to the L size, the arithmetic processing unit 10 recognizes that the signal is from the work area 20 (here, the work area 20a) that is the source of the desired class signal d31. At the same time, identification information (identification information i5a in this example) of the tray 5 currently existing in the work area 20a is specified. Then, information d10 corresponding to the sorting result in the class sorting unit 16 associated with the identified identification information i5a of the tray 5 is read from the storage unit 13, and a plurality of pieces of information arranged in the tray 5 existing in the work area 20a are read. The sorting result output unit 21 is instructed to irradiate the optical signal 21L only to the contents 6 corresponding to the L size among the individual contents 6.

  In the present embodiment, the desired class input unit 31 is configured by a dedicated operation terminal, and a device that can be used for both the barcode detection function and the input of the desired class signal d31 is also possible. In this case, the desired class input unit 31 and the barcode reader 43 can be configured by the same device (operation terminal). In this case, the worker 30 may perform an operation of reading the barcode attached to the tray 5 existing in the work area 20 before and after inputting the desired class signal d31.

  When a plurality of work areas 20 are arranged in series as in the present embodiment, for example, only the L size is sorted in the work area 20a, and the tray 5 after the sorting in the work area 20a is completed is downstream. It is possible to implement a mode in which only the M size is sorted in the next work area 20b. In this case, for the purpose of preventing the tray 5 from moving during the sorting operation by the worker 30, the weight sorting system 1 is used for transport for controlling the transport speed of the transport device 3 as shown in FIG. 8. The control unit 50 may be provided. For example, as the transfer device 3, a plurality of sets of conveyor groups are connected in series, and each conveyor is individually controlled to operate / stop / adjust speed based on a control signal from the transfer control unit 50. be able to.

  The conveyance control unit 50 may be configured to be able to exchange information with the arithmetic processing device 10. With this configuration, the conveyance control unit 50 can automatically detect the timing of operation / stop / speed adjustment of each conveyor.

  As shown in FIG. 9, the transport device 3 may have a pull-out transport line (transport conveyor), and the work area 20 may be determined in each pulled-out transport line. In this case, the sorting operation in the work area 20 located on the downstream side can be started without waiting for the completion of the sorting work in the work area 20 located on the upstream side. In other words, each worker 30 can perform sorting work for a plurality of classes with respect to the plurality of contents 6 arranged in the tray 5 existing in the target work area 20.

[Fourth embodiment]
Only a different part from said each embodiment is demonstrated about 4th embodiment of a weight selection system. 10A and 10B are schematic top views of the weight sorting system according to the present embodiment. FIG. 11 is a functional block diagram schematically showing the configuration of the arithmetic processing device 10 provided in the weight selection system 1 of the present embodiment.

  Unlike the first to third embodiments, the weight sorting system 1 of the present embodiment has a storage area 70. The individual contents 6 accommodated in the tray 5 that has passed through the X-ray detection unit 7 and the weight measurement unit 9 are sorted by class by the arithmetic processing unit 10 based on the same method as in each of the above-described embodiments. .

  In the present embodiment, as in the third embodiment, information (identification information i5) for individually identifying each tray 5 is attached to the tray 5. As an example, information including the identification information i5 is pasted on a predetermined surface of the tray 5 in a state converted into a barcode format. With this configuration, the tray 5 that has passed through the X-ray detection unit 7 and the weight measurement unit 9 can be identified from the other trays 5 by the barcode reader 41 that is an aspect of the identification information reader.

  The class sorting unit 16 of the arithmetic processing device 10 sorts the contents 6 in the tray 5 for each class by the same method as in the above embodiment. The class selection unit 16 stores the result in the storage unit 13 in a state in which the result is associated with information (identification information i5) for identifying the tray 5.

  In the weight sorting system 1 of the present embodiment, the tray 5 that has been sorted is transported by the worker 35 into the storage area 70 using the transport platform 71. In FIG. 10A, the worker in charge of the sorting operation is represented by reference numeral 34, and the worker in charge of transporting the tray 5 that has completed the sorting process to the storage area 70 is represented by reference numeral 35. . The storage area 70 is equipped with, for example, a refrigeration function so that the quality is not affected even if the contents 6 are temporarily stored. The method for transporting the tray 5 into the storage area 70 is not limited to human power, and a device such as a robot or a belt conveyor may be used.

  The tray 5 stored in the storage area 70 is taken out from the storage area 70 by using the transport table 71 at a predetermined timing and placed on the transport device 3. A plurality of contents 6 accommodated in the tray 5 conveyed through the conveying device 3 are sorted by class in the work area 20 by the worker 30.

  In FIG. 10A, in order to sort the contents 6 stored in the tray 5 by class, the transport device 3 for the purpose of passing the X-ray detection unit 7 and the weight measurement unit 9 is referred to as “transport device 3e”. It is described. On the other hand, in FIG. 10B, the conveying device 3 for conveying the contents 6 accommodated in the tray 5 taken out from the storage area 70 toward the work area 20 for the purpose of sorting by the worker 30 is “ "Conveyor 3f".

  Also in this embodiment, as in the third embodiment, each work area 20 is provided with a barcode reader 43 for reading a barcode attached to the tray 5 (see FIG. 10B). The bar code attached to the tray 5 is read by the bar code reader 43 from the tray 5 conveyed through the conveying device 3 (3f). Information relating to this barcode (identification information i5) is transmitted from the barcode reader 43 to the arithmetic processing unit 10. Thereby, the arithmetic processing unit 10 recognizes the identification information i5 of the tray 5 corresponding to the information related to the barcode.

  The arithmetic processing device 10 reads information related to the sorting result of the tray 5 associated with the identification information i5 from the storage unit 13. And like 3rd embodiment, the arithmetic processing unit 10 is with respect to the content 6 applicable to the designated size (for example, L size) among the some content 6 by which this tray 5 is arrange | positioned. Only the sorting result output unit 21 is instructed to irradiate the optical signal 21L.

  That is, according to the weight sorting system 1 of the present embodiment, the timing for sorting the contents 6 by class while being accommodated in the tray 5 and the sorting of the contents 6 actually stored in the tray 5 by class. The timing to perform can be intentionally different. The sorting process for each class of the contents 6 existing in the tray 5 performed through the transport device 3e does not require an operation of actually refilling the contents 6, and is completed in a short time. On the other hand, the sorting work for each class performed through the transfer device 3f requires a work of actually refilling the contents 6, and therefore the number of work steps increases.

  For example, when the contents 6 are fruits and vegetables, a large amount of contents 6 (that is, a large amount of trays 5) are often carried in at the same time zone (for example, in the morning). According to the present embodiment, the sorting operation can be performed after the sorting process is first completed for the contents 6 accommodated in all the trays 5. For this reason, according to the weight selection system 1 of the present embodiment, it is possible to flexibly deal with the arrangement of the workers (30, 34, 35). As an example, it is possible to reduce the number of personnel allocated for the sorting process and increase the number of personnel allocated for the sorting operation.

  As shown in FIG. 11, in the weight selection system 1 of the present embodiment, the arithmetic processing device 10 includes a class distinct number calculation unit 18. The class distinction number calculation unit 18 is an arithmetic processing unit that performs predetermined arithmetic processing based on input information, and is configured by software or hardware.

  As described above, the storage unit 13 stores the sorting result in a state associated with the identification information i5 of the tray 5. The class distinction number calculation unit 18 reads out the sorting result stored in the storage unit 13 and calculates the number of classifications for the plurality of contents 6 accommodated in the plurality of trays 5 that have not been sorted. To do. As a result, the number of contents 6 that need to be sorted on the day by class can be recognized at a stage before the sorting work is started. This information has not been obtained with conventional systems.

  As an example, as illustrated in FIG. 11, the arithmetic processing device 10 includes a sorting work specifying unit 81. The sorting work specifying unit 81 is an arithmetic processing unit that performs predetermined arithmetic processing based on input information, and is configured by software or hardware.

  Conventionally, since the number of contents 6 for each class has not been recognized before the start of the sorting operation, an empirical rule is taken into consideration for the arrangement of the L size, M size, and S size sorters. However, some personnel were assigned to some extent. As a result, for example, when the number of the L size is sufficiently larger than the number of the M size and the number of the S size is smaller than the number of the M size, the person in charge of sorting the S size has the contents 6 to be sorted. There were few situations that could result in longer waiting times.

  On the other hand, according to the weight sorting system 1 of the present embodiment, the number of contents 6 that need to be sorted on the day can be recognized at the stage before the sorting work is started. Therefore, as in the above example, when the number of L sizes is sufficiently larger than the number of M sizes and the number of S sizes is smaller than the number of M sizes, the work area 20 for sorting L sizes is displayed. It is possible to cope with such a case that the number is maximized and the number of work areas 20 where the S size is sorted is minimized. That is, the sorting work specifying unit 81 designates a class to be sorted for each of the plurality of work areas 20 based on the result calculated by the class distinction number calculating unit 18. For example, when the number of L sizes is large, the number of work areas 20 that perform L size sorting is increased, and when the number of S sizes is large, the number of work areas 20 that perform S size sorting is decreased. It is possible to respond flexibly such as.

  In the present embodiment, manual sorting is assumed, but the same applies to mechanical sorting by robots. Even in the sorting work by the robot, changing the class to be sorted during the sorting work is not preferable because the work efficiency is lowered. When the number of L sizes is sufficiently larger than the number of M sizes and the number of S sizes is smaller than the number of M sizes as in the above example, the number of robots that sort L sizes is increased, and S Flexible support such as reducing the number of robots that sort the size is possible.

  In addition, as illustrated in FIG. 12, the arithmetic processing device 10 may include a work plan formulation unit 82. The work plan formulation unit 82 is an arithmetic processing unit that performs predetermined arithmetic processing based on input information, and is configured by software or hardware.

  The work plan formulation unit 82 formulates a work plan for each worker 30 based on the information on the number of contents 6 that need to be sorted on the day, calculated by the class distinction number calculation unit 18. As an example, when the number of contents 6 to be sorted is small, the work plan formulation unit 82 performs settings such as reducing the number of workers 30 working on the day or shortening the work time.

  As described above, conventionally, since a series of operations from sorting to boxing has been continuously performed in series, the number of each class cannot be grasped at the start of the sorting operation. On the other hand, when the contents 6 are fruits and vegetables or the like, it is not preferable that the freshness is lowered. Therefore, it is necessary to arrange a large number of personnel for safety reasons. According to the weight sorting system 1 of the present embodiment, as described above, the sorting process and the sorting process can be divided in time, so that the personnel required for the sorting process can be kept to a minimum. In addition, since the number of each class can be grasped before the start of the sorting work, the work plan formulation unit 82 sets the number of workers 30 in charge of sorting and the working time in accordance with this number. Can do.

  Although not shown in FIG. 10B, the contents 6 that have been sorted by class are transported to the subsequent stage and boxed by class. According to the weight selection system 1 of this embodiment, since the number of contents 6 to be sorted on the day can be recognized by class, the number and time of personnel necessary for boxing can be grasped. Therefore, the work plan formulation unit 82 may set the number of personnel and work time necessary for the boxing work.

  Further, as illustrated in FIG. 13, the arithmetic processing device 10 may include a shipping plan formulation unit 83. The shipping plan formulation unit 83 is an arithmetic processing unit that performs predetermined arithmetic processing based on input information, and is configured by software or hardware.

  The shipping plan formulation unit 83 calculates the number of shipments for each shipping destination based on the information for the number of the contents 6 that need to be sorted that day, calculated by the class-specific number calculation unit 18. As described above, according to the weight selection system 1 of the present embodiment, since the number of each class can be grasped in advance, for example, the market price of the most recent class in each place is analyzed so that the sales price becomes high. In addition, the shipping destination can be specified for each class. Conventionally, the volume cannot be grasped until a series of operations from acceptance to sorting is completed, so if you specify the shipping destination after analyzing the market price, the shipment will be the next day, for example, and the freshness will decrease. There was a problem of ending up. According to the weight selection system 1 of the present embodiment, the number of each class can be grasped before the series of operations from acceptance to sorting is completed. In other words, the shipping plan formulation unit 83 can read the information regarding the number of each class stored in the storage unit 13 when the sorting operation is completed, and determine the shipping destination based on the market price.

  Furthermore, information relating to the producer who produced the contents 6 stored in the tray 5 may be associated with the barcode (identification information i5) attached to the tray 5. As described above, the information related to the sorting result is stored in the storage unit 13 in a state associated with the identification information i5 of the tray 5. As described above, this identification information i5 is also associated with information relating to the producer. For this reason, the class distinction number calculation unit 18 reads out the sorting result stored in the storage unit 13, and for each of the plurality of contents 6 accommodated in the plurality of trays 5 for which the sorting process has been completed, for each producer. The number by class can be calculated.

  According to this configuration, the transaction price can be calculated for each producer before a series of operations from acceptance to sorting is completed, and the accuracy and speed of the transaction work are improved.

  In the above-described embodiment, the weight selection system 1 has been described as having the storage area 70. However, in the present embodiment, the storage area 70 may not be provided. That is, the tray 5 that has passed through the X-ray detection unit 7 and the weight measurement unit 9 and has completed the class sorting process but has not completed the sorting operation is temporarily placed on the transport device 3 upstream of the work area 20. Even in the case where the water is stored in the tank, the same processing can be performed.

[Another embodiment]
Hereinafter, another embodiment will be described.

  <1> The weight selection system 1 may include an imaging device for imaging the inside of the tray 5 with visible light. FIG. 14 is a top view schematically showing a configuration in the case where the weight selection system 1 of the third embodiment shown in FIG. 15 is a schematic front view and block diagram of the weight selection system of FIG.

  As shown in FIGS. 14 and 15, the weight sorting system 1 includes an imaging device 53, and the tray 5 and its contents 6 that are placed on the transport surface 3 a of the transport device 3 and transported are visible light. Take an image. Data (imaging information d53) imaged by the imaging device 53 is transmitted to the arithmetic processing device 10. The imaging device 53 and the arithmetic processing device 10 are configured to be capable of communication connection by wire or wireless.

  Further, in this example of another embodiment, the arithmetic processing device 10 includes the superiority / inferiority determination unit 17. The superiority / inferiority determination unit 17 is an arithmetic processing unit that performs predetermined arithmetic processing based on input information, and is configured by software or hardware. The superiority / inferiority determination unit 17 determines superiority or inferiority of the plurality of contents 6 arranged in the tray 5 based on the imaging information d53 transmitted from the imaging device 53. For example, based on the image information of the imaging information d53, various types of information such as hue, saturation, and brightness are detected and determined by comparison with a predetermined threshold. For example, the superiority / inferiority determination unit 17 causes the storage unit 13 to store information on the content 6 determined to be inferior by the determination process.

  As in the above embodiment, the worker 30 only packs the contents 6 belonging to the L size out of the plurality of contents 6 accommodated in the tray 5 existing in the work area 20. Suppose you want to move to. In this case, the worker 30 inputs a signal corresponding to the L size as the desired class signal d31 via the desired class input unit 31.

  When the arithmetic processing unit 10 receives the input of the desired class signal d31 corresponding to the L size, the content determined to be inferior by the superiority / inferiority determination unit 17 among the plurality of contents 6 arranged on the tray 5 The sorting result output unit 21 is instructed to irradiate the optical signal 21L only to the contents 6 corresponding to the L size, excluding the object 6. Thereby, only the superior contents 6 can be sorted for each weight of the same class.

  In the above description, the case of the third embodiment has been described as an example, but the present invention can be similarly applied to the weight selection system 1 of the first embodiment or the second embodiment.

  <2> In each of the above embodiments, the case where the arithmetic processing device 10 includes the class selecting unit 16 has been described. However, the arithmetic processing device 10 may not include the class selection unit 16. That is, in this case, the arithmetic processing device 10 functions as a device that estimates the weight of the plurality of contents 6 arranged on the tray 5, and the system including the arithmetic processing device 10 of this aspect functions as a weight measurement system. To do.

  <3> In the third embodiment described above, when a plurality of work areas 20 exist, a barcode (identification information) is attached to each tray 5, and a barcode reader (identification) for reading the identification information Information readers 41 and 43 are provided. However, even when the work area 20 is alone, the barcode readers 41 and 43 may be provided. Further, when there are circumstances such as the number of work areas 20 or the number of trays 5 being conveyed simultaneously, even if there are a plurality of work areas 20, a barcode reader (identification information reading device) 41 is provided. , 43 may not be provided.

  <4> In each of the above embodiments, the sorting result output unit 21 is composed of an information output light source, and the optical signal 21L corresponding to the sorting result is irradiated onto the tray 5. However, the method of transmitting information corresponding to the sorting result is not limited to this mode, and any method can be adopted as long as the information related to the sorting result can be visually recognized by the worker 30.

  For example, a monitor (not shown) is installed in the work area 20, and the placement mode of the contents 6 distributed on the tray 5 on the monitor and the class to which the placed contents 6 belong. It is also possible to display information indicating the above together.

  <5> In each of the above embodiments, the weight measuring unit 9 is disposed at a position between the X-ray detection unit 7 and the work area 20. That is, the X-ray detection unit 7 is disposed upstream of the weight measurement unit 9. Thereby, the arrangement position of the X-ray detection part 7 can be kept away from the worker 30, and the effect of reducing the mental and psychological burden on the worker 30 is expected.

  However, this aspect is merely an example, and the case where the weight measuring unit 9 is arranged upstream of the X-ray detection unit 7 is not intended to exclude from the present invention.

  <6> As described above in the third embodiment, when a plurality of work areas 20 are arranged, a class to be irradiated with the optical signal 21L from the sorting result output unit 21 is accommodated in each tray 5. It may be automatically selected according to the tendency of the contents 6 that are present. When the contents 6 are fruits and vegetables, a predetermined tendency occurs in the size of the contents 6 according to the season and the harvesting place. For example, when there are four types of S / M / L / 2L as magnitude classes, the distribution tendency is such that M is the largest in one season and L is the largest in another. For the purpose of equalizing the work burden of the worker 30 arranged in each work area 20, it tends to occur according to the season etc. of the contents 6 accommodated in the tray 5 arranged in each work area 20. The contents 6 belonging to a higher class may be automatically selected and made visible. The same applies to the fourth embodiment.

1: Weight sorting system 3: Transport device 3a: Transport surface 3e, 3f: Transport device 5: Tray 6: Contents 7: X-ray detection unit 7a: X-ray generation unit 7b: X-ray line scanner 7L: X-ray 9: Weight measurement unit 10: arithmetic processing unit 13: storage unit 14: image processing unit 15: weight estimation unit 16: class selection unit 17: superiority / inferiority judgment unit 18: class distinction number calculation unit 20: work area 20a, 20b, 20c, 20d : Work area 21: Sorting result output unit 30: Workers 30a, 30b, 30c, and 30d: Worker 31: Desired class input unit 34: Worker 35: Worker 41: Bar code reader (identification information reader)
43: Bar code reader (work area identification information reader)
50: Transport control unit 53: Imaging device 61: Box 62: Plate member 63: Plate member depression 70: Storage area 71: Transport table 81: Sorting work specifying unit 82: Work plan formulation unit 83: Delivery plan formulation Part

Claims (12)

A tray configured such that a plurality of contents can be dispersedly arranged in a plane;
A transport device that guides the tray placed on the transport surface from the upstream side to the downstream side;
An X-ray detector for imaging the transport surface;
A weight measuring unit configured to measure a total weight of the tray placed on the transport surface and the contents arranged in the tray; and
An arithmetic processing unit to which image information captured and detected by the X-ray detection unit and total weight information corresponding to the total weight are input;
The arithmetic processing unit calculates the weight of each of the contents based on the weight ratio of each of the contents dispersedly arranged in the tray calculated based on the image information and the total weight. A weight measuring system characterized by estimating. The arithmetic processing unit includes:
A storage unit for storing the weight of the tray according to an initial state in which the contents are not arranged;
Based on binary information of the image information, an image processing unit that identifies the outer edges of each of the plurality of contents dispersedly arranged in the tray and cuts the contents into individual contents on the image information;
Based on the binary information of the image information, the ratio of the weight of each of the contents distributed in the tray divided on the image information is calculated, and the total weight information inputted Subtracting the weight of the tray from the total weight determined on the basis of the weight, and then dividing the weight by the proportion of the weight of each of the contents, thereby distributing each of the contents distributed in the tray. The weight measurement system according to claim 1, further comprising a weight estimation unit that estimates the weight of the weight. An identification information reading device configured to read individual identification information attached to each tray and to be output to the arithmetic processing device,
The arithmetic processing unit stores information on the weight of each of the contents estimated by the weight estimation unit in the storage unit in association with identification information of the tray on which the contents are arranged. The weight measuring system according to claim 2, wherein A weight selection system comprising the weight measurement system according to any one of claims 1 to 3,
The arithmetic processing unit includes a class selection unit that classifies each of the contents into a class corresponding to the range based on a range to which the estimated weight of each of the contents belongs.
A weight sorting system comprising a sorting result output unit that outputs information corresponding to a sorting result in the class sorting unit so as to be visible in the vicinity of the transfer device. The transport device includes a work area for sorting a plurality of the contents housed in the tray transported from the upstream side,
The sorting result output unit can irradiate a plurality of the contents stored in the tray located in the work area with an optical signal including information corresponding to the class to which the contents correspond. The weight selection system according to claim 4, further comprising a configured information output light source. A desired class input unit that accepts an input of a desired class signal that is a signal related to the class desired to be selected;
The sorting result output unit is only for the contents belonging to the class corresponding to the desired class signal input from the desired class input unit among the plurality of contents stored in the tray. The weight selection system according to claim 5, wherein the optical signal is irradiated.   The weight selection system according to claim 5 or 6, wherein the weight measurement unit is disposed between the X-ray detection unit and the work area. A weight selection system comprising the weight measurement system according to claim 2,
The arithmetic processing unit includes:
Based on the estimated range to which the respective contents belong, the individual contents are sorted into classes corresponding to the ranges, and information corresponding to the sorting results is transmitted to the storage unit. The class selector,
Based on the information stored in the storage unit, a class-specific number calculation that calculates the number of the contents placed on the plurality of trays that have passed through the X-ray detection unit within a predetermined period by the class. And a weight sorting system.   The weight selection according to claim 8, wherein the arithmetic processing unit includes a shipment plan formulation unit that calculates a shipment number for each shipping destination based on a result calculated by the class distinct number calculation unit. system. An identification information reading device configured to read individual identification information attached to each tray and to be output to the arithmetic processing device,
The arithmetic processing unit includes:
Information related to the weight of each of the contents estimated by the weight estimation unit is stored in the storage unit in association with the identification information attached to the tray in which the content is arranged,
The class distinct number calculating unit calculates the number of the contents by the class for each producer who has produced the contents in the tray based on the identification information attached to the tray. The weight selection system according to claim 8 or 9. The transport device includes a plurality of work areas for sorting a plurality of the contents housed in the tray transported from the upstream side,
The arithmetic processing device includes a sorting target specifying unit that specifies the class to be sorted in each of the plurality of work areas based on the result calculated by the class distinct number calculating unit. The weight selection system according to any one of claims 8 to 10. A storage area in which the tray after being imaged by the X-ray detection unit is temporarily stored;
The plurality of work areas are areas for sorting a plurality of the contents housed in the tray conveyed from the storage area,
The arithmetic processing unit grasps the number of the contents placed on the plurality of trays stored in the storage area for each class based on the result calculated by the class distinct number calculation unit. The weight selection system according to claim 11, further comprising a work plan formulation unit that calculates the number of workers required to perform sorting in the plurality of work areas.

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