WO2018021382A1

WO2018021382A1 - Terminal apparatus and picking system

Info

Publication number: WO2018021382A1
Application number: PCT/JP2017/026973
Authority: WO
Inventors: 柴谷　一弘; 吉田　龍一; 佳祐三ツ井; 研二林; 智也山下; 康夫羽合
Original assignee: コニカミノルタ株式会社
Priority date: 2016-07-28
Filing date: 2017-07-26
Publication date: 2018-02-01
Also published as: JPWO2018021382A1

Abstract

Provided are a terminal apparatus and a picking system that are, despite having an inexpensive configuration, capable of effectively inhibiting picking errors. According to the present invention, when a reading device reads an article marker of an article in accordance with operation of an operator and inputs article identification information of the article to a control device, if the control device determines that the inputted article identification information is identical to the article identification information that is of the article to be transferred and that is stored in a storage unit, guide information that promotes input of cart identification information of a specific cart is inputted to a display. Thereafter, the display displays the guide information to wait for input from the reading device. When the reading device reads a cart marker of the specific cart in accordance with operation of the operator and inputs cart identification information to the control device, if the control device determines that the inputted cart identification information is identical to the cart identification information, of the specific cart, stored in the storage unit, normal transfer information indicating that the article has been transferred normally is inputted to the display, and then the display displays the normal transfer information.

Description

Terminal device and picking system

The present invention relates to a terminal device and a picking system suitable for use in picking articles.

In recent years, logistics such as mail-order sales and convenience stores, which have been rapidly developed, have been required to respond immediately to customer orders for goods of various types and small lots, and the handling volume will continue to increase in the future. For this reason, increasing the efficiency of picking work of goods in logistics and warehouse management is an important issue. In particular, the picking work is a work in which the goods according to the customer's order are selected and transferred from a wide variety of stored goods by the operator's hand, so it takes time to perform an accurate picking work. In addition, even if time is taken, erroneous picking cannot be completely eliminated, which is a factor that hinders the efficiency of logistics. Therefore, various support systems that can perform picking work accurately and quickly have been developed.

Patent Document 1 discloses a barcode reader that reads a barcode attached to an item picked by an operator, a scale on which a plurality of the items can be placed, a weight measured by the scale, and the bar. There is disclosed a picking cart including a calculating means for calculating the number of items placed on the scale from bar code information obtained by a code reader, and a notifying means for notifying an operator of the calculation result. . When an operator picks an item, the bar code attached to the item is first read by a bar code reader, and then the item is placed on a predetermined number of scales. That is, a predetermined number of items are once placed on a scale before being placed in a bucket. Then, the calculation means calculates the number of items placed on the scale from the weight measured by the scale and the barcode information obtained by the barcode reader, and the calculation result is notified to the operator by the notification means. It is announced. Therefore, the worker can confirm whether or not there is an error in the picked number, and this is said to have an effect of improving the certainty of the work.

JP 05-147708 A Japanese Patent Laid-Open No. 06-64713 JP 05-286512 A Japanese Patent Laid-Open No. 02-18204

However, according to the technique of Patent Document 1, even if the same kind of goods, the weight may differ due to individual differences, and even if the correct number of goods is placed in the bucket as many as the expected number, it is notified from the notification means. The calculation result may not be an appropriate value, which may cause confusion for the operator. On the other hand, the weights may be the same even for different kinds of items, but if the same weight and different kinds of items are mistakenly placed on the bucket, the calculation result notified from the notification means There may be an appropriate value, which may lead to erroneous picking.

In Patent Document 2, an article take-out sensor that detects take-out of an article in a booth provided in each of the plurality of booths of an article shelf having a plurality of booths that store articles, and an output of the article take-out sensor A picking device having signal generating means for generating an article removal signal is disclosed. According to such a technique, the article take-out sensor detects that the article has been taken out from the booth of the article shelf, and generates an article take-out signal from the signal generating means on the basis of the output of the article take-out sensor. By using the signal, there is no need to perform an operation that is not directly related to the removal of the article. For example, the control device that controls the display for notifying the worker of the work position can complete the picking at the work position. It will be possible to make a determination or the like. However, according to the technique of Patent Document 2, it is necessary to provide an article take-out sensor for each of a plurality of booths on the article shelf, and the equipment cost becomes enormous.

In Patent Document 3, the unique information stored in the storage means, that is, the information to be added to the removed article from the shelf is read and sent to the label issuing device, and the removed article is based on the unique information, that is, the label issuing information. A technique is disclosed in which a label attached to a label is issued by a label issuing device. These issued labels are attached to, for example, an article taken out from a shelf by a picking operator. Therefore, since labels that accurately correspond to the type and quantity of items to be taken out are automatically issued without human intervention, it is possible to save labor in label issuance work. By attaching to each article, it is supposed that an effect that confirmation of the type and quantity of the taken-out article, that is, inspection is automatically performed. However, if the picking operator attaches the issued label to a different article by mistake, erroneous picking occurs, and the operation of attaching the label itself is a big burden on the operator.

Patent Document 4 discloses a picking zone provided with a merchandise shelf having a large number of pockets for storing merchandise for each item, container transport means for transporting a plurality of destination-specific containers to the picking zone, and the merchandise described above. A pocket indicator provided on the shelf for displaying the number of picked items in each pocket, and an operator arranged in the picking zone picks the item in each pocket according to the indication on the pocket indicator. In the picking system configured to collect in the corresponding container, a loading instruction device that displays at least a container number to be loaded with respect to the picked product is provided in the vicinity of the collection position to each container in the picking zone. Are disclosed. However, in the picking system disclosed in Patent Document 4, a pocket display must be installed for each pocket of the product shelf, and the equipment cost becomes enormous.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a terminal device and a picking system that can effectively suppress erroneous picking while having an inexpensive configuration.

In order to achieve at least one of the above-described objects, a terminal device reflecting one aspect of the present invention can be used when an operator selects one of a plurality of types of articles from a storage location and transfers the selected item to a specific cart. The product is provided with an item marker indicating item identification information according to the type, and the cart is provided with a cart marker indicating unique cart identification information,
A display for displaying information so that the operator can read it;
A storage unit for storing article identification information relating to articles to be transferred and cart identification information relating to the specific cart; and a control device that creates information to be displayed on the display and inputs the information to the display;
A terminal device having a reading device that reads the item marker and inputs the item identification information to the control device, and reads the cart marker and inputs the cart identification information to the control device.
After the control device inputs transfer information indicating an article to be transferred to the display, the display displays the transfer information and waits for an input from the reading device,
When the reading device reads an article marker in the article in accordance with the operation of the operator and inputs the article identification information to the control apparatus, the control apparatus transmits the inputted article identification information to the transfer device. When it is determined that the item identification information matches the item identification information of the item to be entered, after the guidance information for prompting the input of the cart identification information of the specific cart is input to the display, the display displays the guidance information and the reading Wait for input from the device,
When the reading device reads a cart marker in the specific cart in accordance with the operation of the operator and inputs the cart identification information to the control device, the control device recognizes the input cart identification information. When it is determined that it matches the cart identification information of the specific cart, after the normal transfer information indicating that the article has been transferred normally is input to the display, the display displays the normal information.

In order to achieve at least one of the above-described objects, a picking system reflecting one aspect of the present invention is a method in which an operator selects one of a plurality of types of articles from a storage location and transfers them to a specific cart. An article marker indicating article identification information corresponding to the type is attached to the article.
A display for displaying information so as to be readable by the operator; a storage unit for storing the article identification information; a control device for creating information to be displayed on the display and inputting the information to the display; and the article marker. A terminal device having a terminal reading device that reads and inputs the article identification information to the control device;
A detection device that identifies the specific cart and detects that the worker has approached at least a place where the article is placed;
After the control device inputs transfer information indicating an article to be transferred to the display, the display displays the transfer information and waits for an input from the terminal reading device,
When the terminal reading device reads an article marker in the article according to the operation of the operator and inputs the article identification information to the control apparatus, the control apparatus If it is determined that it matches the article identification information of the article to be transferred, after the guide information for prompting access to the specific cart is input to the display, the display displays the guide information, and the detection device Wait for detection,
When the detection device detects that the worker has approached at least a place where the article is placed in the specific cart, the control device displays normal transfer information indicating that the article has been transferred normally. After the input, the display displays the normal transfer information.

According to the present invention, it is possible to provide a terminal device and a picking system capable of effectively suppressing erroneous picking while having an inexpensive configuration.

It is a figure for demonstrating the outline of the picking system concerning 1st Embodiment. 1 is a perspective view of a head mounted display (hereinafter referred to as HMD) 100 according to the present embodiment. It is a block diagram of HMD100 and arm wearing type scanner 200 which are terminal devices. It is a figure which shows the state which the operator mounted | worn with HMD100 and the arm mounting type | mold scanner 200. FIG. 3 is a schematic cross-sectional view showing a configuration of a display unit 104. FIG. It is an example of the information displayed on the image display part 104B of the display unit 104. FIG. It is a figure which shows the state which reads the barcode information (article identification information) by irradiating the infrared light IR of the arm-mounted scanner 200 to the barcode BC1 of the product CM. It is a figure which shows the state which irradiates the infrared light IR of the arm mounting type | mold scanner 200 to barcode BC2 of cart CT, and reads barcode information (cart identification information). It is an example of warning information displayed on the image display unit 104B of the display unit 104. It is an example of warning information displayed on the image display unit 104B of the display unit 104. It is a figure which shows cart CT and worker WK concerning 2nd Embodiment. It is the same block diagram as FIG. 3 concerning 2nd Embodiment. It is a figure which shows cart CT and worker WK concerning 3rd Embodiment.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram for explaining the outline of the picking system according to the first embodiment, and shows an example of picking work in a warehouse. In FIG. 1, a plurality of shelves SF are installed in a warehouse, and a commodity CM is stored in each shelf SF. Further, a plate PT with a shelf number is attached to the shelf SF in which the commodity CM is stored. A sticker with a barcode BC1 (article marker) indicating the type (identification information) of the product is attached to each product CM. Further, a sticker with a barcode BC2 (cart marker) indicating the unique identification information of the cart CT is attached to the handle HN of the cart CT that the worker WK transfers from the shelf SF.

Furthermore, the database server DS stores the names and numbers of products (articles) ordered from mail order companies and convenience stores. The picking server PS connected to the database server DS via the network identifies the product and number of products to be picked from the products stored in the warehouse according to the instruction from the database server DS, and the product information ( Transfer information indicating articles to be transferred). Further, the picking server PS stores the shelf SF and the product CM stored therein in association with each other. The created product information is sorted for each worker, and is transmitted from the access point AP to the wearable terminal (HMD) of the worker WK via a wireless LAN.

FIG. 2 is a perspective view of a head mounted display (hereinafter referred to as HMD) 100 according to the present embodiment. FIG. 3 is a block diagram of the HMD 100 and the arm-mounted scanner 200 constituting the terminal device. FIG. 4 is a diagram illustrating a state in which an operator wears the HMD 100 and the arm-mounted scanner 200.

As shown in FIG. 2, the HMD 100 of the present embodiment has a frame 101 that is a support member. A frame 101 that is U-shaped when viewed from above has a rectangular frame 102 attached to the lower part on the front end side and a main body 103 attached to the upper part thereof. The main body 103 is connected to the control box CB by a wiring CD, and is supplied with power from a battery (not shown) built in the control box CB. As shown in FIG. 4, a rectangular frame 102 is placed in front of the right eye of the worker WK with the frame 101 mounted on the head of the worker WK. In the rectangular frame 102, an image display unit 104B capable of through display is arranged as a component of the display unit 104.

In the control box CB worn by the worker WK, as shown in FIG. 3, a communication unit 105 that can download information from the picking server PS, a display control unit 106 that controls display of the display unit 104, and these There is provided a control unit 107 that manages the above. A control unit 107 that constitutes a control device together with the display control unit 106 includes a storage unit. On the other hand, the arm-mounted scanner 200 as a (terminal) reading device projects infrared light and reads barcode information from the reflected light, and barcode information read by the barcode scanner 201. Is transmitted to the communication unit 105 of the HMD 100 by Bluetooth (registered trademark) or the like, and an operation unit 203 that enables operations such as on / off of infrared light. As shown in FIG. 4, the arm-mounted scanner 200 is mounted on the arm AM of the worker WK so as not to interfere with the picking work, and the infrared light is emitted from the barcode scanner 201 while being worn on the arm of the worker WK. The barcode information can be read out.

FIG. 5 is a schematic cross-sectional view showing the configuration of the display unit (also referred to as a display) 104. The display unit 104 as a display device includes an image forming unit 104A and an image display unit 104B. The image forming unit 104A is incorporated in the main body unit 103, and includes a light source 104a, a unidirectional diffuser 104b, a condenser lens 104c, and a display element 104d. On the other hand, the image display unit 104B, which is a so-called see-through type display member, has a generally plate shape arranged so as to extend downward from the main body unit 103, and includes an eyepiece prism 104f, a deflection prism 104g, and a hologram. And an optical element 104h.

The light source 104a has a function of illuminating the display element 104d. For example, 462 ± 12 nm (B light), 525 ± 17 nm (G light), 635 ± 11 nm (R It is composed of RGB-integrated LEDs that emit light in three wavelength bands. Thus, the light source 104a emits light having a predetermined wavelength width, whereby the image light obtained by illuminating the display element 104d can have a predetermined wavelength width, and the hologram optical element 104h transmits the image light. When diffracted, the operator WK can observe the image over the entire observation angle of view at the position of the pupil B. Further, the peak wavelength for each color of the light source 104a is set in the vicinity of the peak wavelength of the diffraction efficiency of the hologram optical element 104h, so that the light use efficiency is improved.

Further, since the light source 104a is composed of LEDs that emit RGB light, the cost of the light source 104a can be reduced, and a color image is displayed on the display element 104d when the display element 104d is illuminated. This makes it possible for the worker WK to visually recognize the color image. In addition, since each of the RGB LED elements has a narrow emission wavelength width, the use of a plurality of such LED elements enables high color reproducibility and bright image display.

The display element 104d displays an image by modulating the light emitted from the light source 104a in accordance with image data, and is configured by a transmissive liquid crystal display element having pixels that serve as light transmitting regions in a matrix. Has been. Note that the display element 104d may be of a reflective type.

The eyepiece prism 104f totally reflects the image light from the display element 104d incident through the base end face PL1 between the opposed parallel inner side face PL2 and outer side face PL3, and passes through the hologram optical element 104h to the worker WK. While guiding to the pupil, it transmits the external light and guides it to the pupil of the worker WK, and is composed of, for example, an acrylic resin together with the deflecting prism 104g. The eyepiece prism 104f and the deflection prism 104g are joined by an adhesive with the hologram optical element 104h sandwiched between inclined surfaces PL4 and PL5 inclined with respect to the inner surface PL2 and the outer surface PL3.

The deflection prism 104g is joined to the eyepiece prism 104f, and becomes a substantially parallel flat plate integrated with the eyepiece prism 104f. By joining the deflecting prism 104g to the eyepiece prism 104f, it is possible to prevent distortion of the external image observed by the operator WK through the display unit 104.

That is, for example, when the deflecting prism 104g is not joined to the eyepiece prism 104f, external light is refracted when passing through the inclined surface PL4 of the eyepiece prism 104f, so that an external image observed through the eyepiece prism 104f is distorted. . However, by joining the deflecting prism 104g having the inclined surface PL5 complementary to the eyepiece prism 104f to form an integral substantially parallel plate, external light is transmitted through the inclined surfaces PL4 and PL5 (hologram optical element 104h). The refraction at that time can be canceled by the deflecting prism 104g. As a result, it is possible to prevent distortion in the external image observed through the see-through.

The hologram optical element 104h diffracts and reflects the image light (light having a wavelength corresponding to the three primary colors) emitted from the display element 104d and guides it to the pupil B, and enlarges the image displayed on the display element 104d to increase the worker WK. It is a volume phase type reflection hologram guided as a virtual image to the pupil. The hologram optical element 104h has, for example, three wavelength ranges of 465 ± 5 nm (B light), 521 ± 5 nm (G light), and 634 ± 5 nm (R light) with a peak wavelength of diffraction efficiency and a wavelength width of half the diffraction efficiency. The light is diffracted (reflected). Here, the peak wavelength of diffraction efficiency is the wavelength at which the diffraction efficiency reaches a peak, and the wavelength width at half maximum of the diffraction efficiency is the wavelength width at which the diffraction efficiency is at half maximum of the diffraction efficiency peak. is there.

The reflection-type hologram optical element 104h has high wavelength selectivity, and only diffracts and reflects light having a wavelength in the above-mentioned wavelength range (near the exposure wavelength). The hologram optical element 104h is transmitted, and a high external light transmittance can be realized.

Next, the operation of the display unit 104 will be described. The light emitted from the light source 104a is diffused by the unidirectional diffusion plate 104b, condensed by the condenser lens 104c, and enters the display element 104d. The light incident on the display element 104d is modulated for each pixel based on the image data input from the display control unit 106, and is emitted as image light. Thereby, a color image is displayed on the display element 104d.

Image light from the display element 104d enters the eyepiece prism 104f from its base end face PL1, is totally reflected a plurality of times by the inner side face PL2 and the outer side face PL3, and enters the hologram optical element 104h. The light incident on the hologram optical element 104h is reflected there, passes through the inner side surface PL2, and reaches the pupil B. At the position of the pupil B, the user can observe an enlarged virtual image of the image displayed on the display element 104d, and can visually recognize it as a screen formed on the image display unit 104B. In this case, it can be considered that the hologram optical element 104h constitutes a screen, or it can be considered that a screen is formed on the inner surface PL2.

On the other hand, the eyepiece prism 104f, the deflecting prism 104g, and the hologram optical element 104h transmit almost all the external light, so that the worker WK can observe an external field image (real image) through them. Therefore, since the virtual image of the image displayed on the display element 104d is observed to overlap with a part of the external image, the commercial CM can be observed even when the image is displayed, which disturbs the picking operation. There is little fear to do. Thus, the worker WK wearing the HMD 100 can simultaneously observe the image provided from the display element 104d and the external image via the hologram optical element 104h, and can perform the picking work in parallel.

In addition, when the display unit 104 is in a non-display state, the image display unit 104B is transparent, and only an external image can be observed. In this example, a display unit is configured by combining a light source, a liquid crystal display element, and an optical system. However, instead of a combination of a light source and a liquid crystal display element, a self-luminous display element (for example, an organic EL display element) May be used. Further, instead of a combination of a light source, a liquid crystal display element, and an optical system, a transmissive organic EL display panel having transparency in a non-light emitting state may be used. In any case, when the screen is arranged so as to enter the visual field of the eyes of the worker WK facing the image display unit 104B, preferably at least partly overlaps the effective visual field, the worker WK can easily display the image. Can be visually recognized.

Next, a picking support operation using the HMD 100 and the arm-mounted scanner 200 of this embodiment will be described. FIG. 6 is an example of information displayed on the image display unit 104 </ b> B of the display unit 104. In FIG. 1, the picking server PS that has downloaded the order information including the product name and quantity from the database server DS communicates with the shelf SF by wireless communication with the communication unit 105 of the HMD 100 of a worker WK via the access point AP. Send information about goods to be transferred from. Receiving such information, the control unit 107 stores the information on the goods to be transferred and the information on the (specific) cart used by the worker WK instructed to transfer the information in the built-in storage unit, and further displays the information. The control unit 106 is controlled to create an image to be displayed based on the transmitted information, and the image information is transmitted to the display unit 104 via the wiring CD. The display unit 104 having input such image information displays a corresponding image (transfer information). An example of the displayed image is shown in FIG.

Here, specifically, the image displayed on the display unit 104 includes, in addition to “shelf number”, “product name”, “product number”, and “planned number of picking”, an image of the product to be transferred, “ It is preferable to include a note such as “Caution for similar products”. The worker WK who sees the displayed image moves to the place where the goods are stored depending on the shelf number while pushing his cart CT.

As shown in FIG. 7, the worker WK who has discovered the product to be transferred (here, a 6-can pack of beer 500 m) irradiates the infrared light IR of the arm-mounted scanner 200 to the barcode BC1 of the product CM. The barcode information (article identification information) is read. The read barcode information is transmitted to the communication unit 105 of the control box CB via the communication unit 202. In addition, if the same product has a different number, it is treated as a different type.

The control unit 107 of the HMD 100 that has input the transmitted barcode information checks the product barcode information stored in the storage unit and determines that they match, controls the display control unit 106, An image that prompts input of the barcode BC2 attached to the cart CT is created, and the image information is transmitted to the display unit 104 via the wiring CD. The display unit 104 having input such image information displays a corresponding image (guidance information). An example of the displayed image is shown in FIG.

Here, the image displayed on the display unit 104 shows, for example, the cart number (here, 31) of the cart CT of the worker WK who has been instructed to transfer and the place (the handle HN) to which the barcode BC2 is assigned. It is preferable to show. The worker WK who has seen such an image knows that the commodity CM having previously read the barcode information is the correct one to be transported, so that erroneous picking is prevented, and at the same time, the barcode BC2 of the cart CT is used as the next operation. It turns out that it needs to be read. In order to read the barcode BC2, the worker WK has to approach the cart CT once, so that the commodity CM from which the barcode information has been read can be held and transferred to the cart CT. As a result, it is possible to prevent a mistake of forgetting to put the commercial CM.

On the other hand, when the control unit 107 determines that the transmitted barcode information of the product and the stored barcode information of the product do not coincide with each other, the image displayed on the display unit 104 is shown in FIG. Can be maintained. The worker WK who visually recognizes that the image does not change is understood that the commodity CM that has previously read the barcode information is inappropriate to be transported, thereby preventing erroneous picking.

Alternatively, when the control unit 107 determines that the transmitted barcode information of the product and the stored barcode information of the product do not match, the control unit 107 creates first error information and inputs the first error information to the display unit 104. Based on this, the warning image (first error information) shown in FIG. 9 can be switched and displayed on the display unit 104. The worker WK who has visually recognized the warning image shown in FIG. 9 can immediately recognize that the picked product is incorrect. This warning image is displayed for only 5 seconds, for example, and thereafter it is desirable to switch to the image shown in FIG.

As shown in FIG. 8, the worker WK who has transferred the first pack of the correct product CM to the cart CT irradiates the bar code BC2 of the cart CT with the infrared light IR of the arm-mounted scanner 200, and the bar code information. Read (cart identification information). The read barcode information is transmitted to the communication unit 105 of the control box CB via the communication unit 202.

The control unit 107 of the HMD 100 that has input the transmitted bar code information checks the bar code information of the cart stored in the storage unit and determines that they match, the control unit 107 controls the display control unit 106, Next, an image showing a product to be transferred is created, and the image information is transmitted to the display unit 104 via the wiring CD. Here, it is assumed that two packs of the same product CM are transferred. The display unit 104 that has input such image information displays a corresponding image. An example of the displayed image is shown in FIG.

In addition, when the display image of FIG. 6C is compared with the display image of FIG. 6A, it can be seen that the scheduled picking number has changed from “0/2” to “1/2”. Therefore, the worker WK who sees such an image (normal transfer information) knows that the cart to which the product CM has been transferred is appropriate and needs to transfer the same product CM to the cart CT as the next operation. I understand.

On the other hand, when the control unit 107 determines that the transmitted bar code information of the cart and the stored bar code information of the cart do not match, an image displayed on the display unit 104 is displayed as shown in FIG. Can be maintained. The worker WK who visually recognizes that the image does not change is understood that the cart to which the commodity CM has been transferred is inappropriate, thereby preventing erroneous picking.

Alternatively, if the control unit 107 determines that the transmitted bar code information of the cart and the stored bar code information of the cart do not match, the control unit 107 creates the second error information and inputs it to the display unit 104. Based on this, the warning image (second error information) shown in FIG. 10 can be switched and displayed on the display unit 104. The worker WK who has visually recognized the warning image shown in FIG. 10 can immediately recognize that the cart CT to which the commodity CM has been transferred is incorrect. This warning image is displayed for 5 seconds, for example, and thereafter it is desirable to switch to the image shown in FIG.

The worker WK who visually recognizes the image shown in FIG. 6C irradiates the barcode BC1 of the picked product CM with the infrared light IR of the arm-mounted scanner 200 as shown in FIG. Is displayed, the display on the display unit 104 is switched to the image shown in FIG. 6D, which indicates that the picked product CM is correct.

Subsequently, when the worker WK transfers the product CM to the cart CT, as shown in FIG. 8, the bar code BC2 of the cart CT is irradiated with the infrared light IR of the arm-mounted scanner 200, and the bar When the code information is read, the display on the display unit 104 is switched to the image (normal transfer information) shown in FIG. 6 (e), and it is understood that the product CM is transferred to the appropriate cart CT. At this point in time, in the display image of FIG. 6 (e), the scheduled picking number has changed to “2/2”, so that the worker WK knows that picking of the same product CM has been completed. As described above, every time the commercial item CM is transferred to the cart CT, the barcode BC1 of the commercial item CM and the barcode BC2 of the cart CT are read and the transfer check is performed, so that erroneous picking can be effectively prevented. When the barcode information of the commercial CM and the barcode information of the cart CT do not match, the above-described control that is determined to be inconsistent is performed.

Further, the image shown in FIG. 6E is displayed for 5 seconds, for example, under the control of the control unit 107, and then switched to the image shown in FIG. 6F. However, the switching to the image shown in FIG. 6F has the meaning as normal transfer information (information indicating that the transfer of the article to the specific cart is completed). The display may be displayed on the display unit 104 for 3 seconds, for example, and then switched to the image shown in FIG. The worker WK who visually recognizes such an image understands that it is necessary to transfer the product (酎 high 350 ml 6 can pack) on another shelf to the cart CT, so the cart CT is moved to the displayed shelf number, Thereafter, the same operation is performed. By repeating the above, the worker WK can efficiently transfer all commodities to be transferred to the cart CT.

FIG. 11 is a diagram showing a cart CT and a worker WK according to the second embodiment. FIG. 12 is a block diagram similar to FIG. 3 according to the second embodiment. The second embodiment is different from the first embodiment described above in that the detection device 300 is installed in the handle HN of the cart CT as shown in FIG.

As illustrated in FIG. 12, the detection device 300 includes a storage unit (cart storage unit) 301 that stores unique cart identification information provided in the cart CT, and the cart identification information by wireless communication such as Bluetooth (registered trademark). Detection light DL (for example, an infrared light curtain) only within a predetermined range (for example, within 1.5 m toward the commodity placement location LD) from the transmission unit 302 to transmit and the cart CT at least including the product placement location LD. And an optical sensor unit 303 that detects the approach of the worker WK by receiving the reflected light. When the optical sensor unit 303 detects the approach of the worker WK, the cart identification information is transmitted from the transmission unit 302 to the control unit 107 of the control box CB held by the worker WK and input. In this embodiment, a cart marker is not necessary.

The operation of this embodiment will be described. Since the operator WK operates in the same manner as in the above-described embodiment until the article marker is read by the arm-mounted scanner 200 according to the instruction of the HMD 100 and the commodity CM is transferred to the cart CT, the description is omitted.

Here, the control unit 107 of the control box CB does not accept input from the detection device 300 until the correct commodity CM is scanned by the arm-mounted scanner 200. As a result, it is possible to suppress erroneous control even when the operator WK approaches the cart CT other than the timing of goods transfer. When the correct product CM is scanned by the wrist-mounted scanner 200, the image shown in FIG. 6A is displayed on the display unit 104 of the HMD 100. From this point, the control unit 107 detects the detection device 300. Accepts input from.

On the other hand, when the worker WK holding the product CM approaches the cart CT and places the product CM on the product placement location LD, the detection light DL emitted from the cart CT detection device 300 is blocked. Become. In response to the light sensor unit 303 receiving the reflected light generated at that time, the transmission unit 302 reads the cart identification information from the storage unit 301 and transmits it to the communication unit 105 of the control box CB.

The control unit 107 of the HMD 100 that has input the transmitted cart identification information checks the cart identification information stored in the storage unit, and if the two match, controls the display control unit 106 and then An image indicating a product to be transferred is created, and the image information is transmitted to the display unit 104 via the wiring CD. The display unit 104 that has input such image information displays a corresponding image (see FIG. 6C). If the cart identification information does not match, display control similar to that in the above-described embodiment is performed. Others are the same and will not be described. The detection apparatus 300 may project the scan light onto the commodity CM held by the worker WK, read the barcode BC1, and transmit it to the control box CB. As a result, the barcode information of the product CM and the cart identification information of the cart CT can be input simultaneously, so that the arm-mounted scanner 200 is not necessary.

FIG. 13 is a diagram showing a cart CT and a worker WK according to the third embodiment. The third embodiment is different from the above-described second embodiment in the configuration of the detection device. The cart CT includes a radio wave transmission unit 310 that transmits radio waves including unique cart identification information only within a predetermined range (for example, within a radius of 1.5 m) including at least the product placement location LD. On the other hand, the communication unit 105 of the control box CB also serves as a radio wave receiving unit. The radio wave transmission unit 310 and the communication unit 105 constitute a detection device.

The operation of this embodiment will be described. Until the worker WK reads the article marker by the arm-mounted scanner 200 according to the instruction of the HMD 100 and transfers the commodity CM to the cart CT, the operation is the same as in the above-described embodiment, and thus the description is omitted. As in the second embodiment, the control unit 107 of the control box CB does not accept input from the radio wave transmission unit 310 until the correct product CM is scanned by the arm-mounted scanner 200. .

After the correct product CM is scanned by the arm-mounted scanner 200, when the worker WK holding the product CM approaches the cart CT and places the product CM in the product placement location LD, the cart CT detection device The communication unit 105 receives the radio wave emitted from 310, and inputs the cart identification information included therein to the control unit 107. The control unit 107 collates the input cart identification information with the stored cart identification information, and if it is determined that the two match, the control unit 107 controls the display control unit 106 so as to transfer the next item to be transferred. Is generated, and the image information is transmitted to the display unit 104 via the wiring CD. The display unit 104 that has input such image information displays a corresponding image (see FIG. 6C). If the cart identification information does not match, display control is performed in the same manner as in the above-described embodiment. Others are the same and will not be described.

The present invention is not limited to the embodiments described in the specification, and other embodiments and modifications are included for those skilled in the art from the embodiments and technical ideas described in the present specification. it is obvious. The description and the embodiments are for illustrative purposes only, and the scope of the present invention is indicated by the following claims.

In the embodiments described above, barcodes are used as product markers and cart markers, but QR codes (registered trademark), unique images, and the like may be used. As a reading device that reads a unique image, for example, a camera or the like installed in the HMD can be used. Moreover, although HMD is mentioned as an example of a terminal device, for example, a watch-type terminal device that is used by being attached to a smartphone, a tablet, or an arm may be used. The control box may be replaced with a smartphone or tablet capable of wireless communication with the main body of the HMD, or an HMD built-in type scanner may be used instead of the arm-mounted scanner.

100 HMD
101 Frame 102 Rectangular frame 103 Main unit 104 Display unit 104A Image forming unit 104B Image display unit 104a Light source 104b Unidirectional diffuser

104c Condensing lens

104d Display element

104f Eyepiece prism

104g Deflection prism 104h Hologram optical element 105 Communication unit 106 Display control unit 107 Control unit 200 Arm-mounted scanner 201 Bar code scanner 202 Communication unit 203 Operation unit 300 Detection device 301 Storage unit 302 Transmission unit 303 Optical sensor unit 310 Radio wave transmission unit 310 Detection device AP Access point BC1 Barcode information BC2 Barcode information CB Control box CD Wiring CM Product CT Cart L detection light DS database server HN handle LD article placing yard plants PS picking server PT plate SF shelf WK worker

Claims

A terminal device used when an operator selects one of a plurality of types of articles from a storage location and transports them to a specific cart, and the article is provided with an article marker indicating article identification information according to the type. A cart marker indicating unique cart identification information is attached to the cart,
A display for displaying information so that the operator can read it;
A storage unit for storing article identification information relating to articles to be transferred and cart identification information relating to the specific cart; and a control device that creates information to be displayed on the display and inputs the information to the display;
A terminal device having a reading device that reads the item marker and inputs the item identification information to the control device, and reads the cart marker and inputs the cart identification information to the control device.
After the control device inputs transfer information indicating an article to be transferred to the display, the display displays the transfer information and waits for an input from the reading device,
When the reading device reads an article marker in the article in accordance with the operation of the operator and inputs the article identification information to the control apparatus, the control apparatus If it is determined that it matches the article identification information of the article to be transferred stored in the storage unit, after the guide information for prompting the input of the cart identification information of the specific cart is input to the display, the display Display guidance information, wait for input from the reader,
When the reading device reads a cart marker in the specific cart in accordance with the operation of the operator and inputs the cart identification information to the control device, the control device recognizes the input cart identification information. If it is determined that it matches the cart identification information of the specific cart stored in the storage unit, after the normal transfer information indicating that the article has been transferred normally is input to the display, the display A terminal device that displays normal information.
When the reading device reads an article marker in the article in accordance with the operation of the operator and inputs the article identification information to the control apparatus, the control apparatus If it is determined that the item identification information of the item to be transferred stored in the storage unit does not match, the state where the transfer information is displayed on the display is maintained, or the first error information is displayed on the display. The terminal device according to claim 1, wherein the terminal device is inputted to display the first error information on the display.
When the reading device reads a cart marker in the specific cart in accordance with the operation of the operator and inputs the cart identification information to the control device, the control device recognizes the input cart identification information. When it is determined that the information does not match the cart identification information of the specific cart stored in the storage unit, the state where the guidance information is displayed on the display is maintained, or second error information is displayed on the display. The terminal device according to claim 1, wherein the second error information is displayed on the display.
4. The terminal device according to claim 1, wherein the normal transfer information is information indicating an article to be transferred next, or information indicating that the transfer of the article to the specific cart is completed.
The terminal device according to any one of claims 1 to 4, wherein the article marker and the cart marker are a bar code or a QR code (registered trademark).
The terminal device according to any one of claims 1 to 5, wherein a support member attached to the worker's head supports the display so as to be positioned in front of the worker's eyes.
A picking system used when an operator selects one of a plurality of types of items from a storage location and transports them to a specific cart, and the item is provided with an item marker indicating item identification information according to the type. And
A display for displaying information so as to be readable by the operator; and a storage unit for storing the item identification information regarding the item to be transferred; and a control device for creating information to be displayed on the display and inputting the information to the display A terminal device having a terminal reading device that reads the product marker and inputs the product identification information to the control device;
A detection device that identifies the specific cart and detects that the worker has approached at least a place where the article is placed;
After the control device inputs transfer information indicating an article to be transferred to the display, the display displays the transfer information and waits for an input from the terminal reading device,
When the terminal reading device reads an article marker in the article in accordance with the operation of the operator and inputs the article identification information to the control apparatus, the control apparatus has the inputted article identification information, When it is determined that it matches the article identification information of the article to be transferred stored in the storage unit, after the guide information for prompting access to the specific cart is input to the display, the display displays the guide information. And wait for detection of the detection device,
When the detection device detects that the worker has approached at least a place where the article is placed in the specific cart, the control device displays normal transfer information indicating that the article has been transferred normally. A picking system in which the display displays the normal transfer information after input.
When the terminal reading device reads an article marker in the article in accordance with the operation of the operator and inputs the article identification information to the control apparatus, the control apparatus has the inputted article identification information, When it is determined that the information does not match the article identification information of the article to be transferred stored in the storage unit, the display of the transfer information is maintained on the display, or first error information is displayed on the display. The picking system according to claim 7, wherein the first error information is displayed on the display.
The detection device is provided with the cart, stores a cart storage unit storing unique cart identification information, a transmission unit that transmits the cart identification information, and projects detection light only within a predetermined range from the cart. It has an optical sensor unit that detects the approach of the worker by receiving reflected light, and the storage unit of the control device stores identification information of a specific cart,
When the optical sensor unit detects the approach of the worker, the cart identification information stored in the cart storage unit is transmitted from the transmission unit to the control device of the terminal device, and is input. If the input cart identification information is determined to match the cart identification information of the specific cart stored in the storage unit, the normal transfer information indicating that the article has been transferred normally is displayed on the display. The picking system according to claim 7 or 8, wherein the picking system is input to.
The detection device includes a radio wave transmission unit that is provided in the cart and transmits a radio wave including unique cart identification information only within a predetermined range, and a radio wave reception unit that is provided in the terminal device. The storage unit stores identification information of a specific cart,
When the operator enters the predetermined range, the radio wave receiving unit detects the radio wave, thereby inputting the cart identification information included in the radio wave to the control device, When it is determined that the input cart identification information matches the cart identification information of the specific cart stored in the storage unit, normal transfer information indicating that the article has been transferred normally is displayed on the display. The picking system according to claim 7 or 8, wherein the picking system is input.
If the control device determines that the input cart identification information does not match the cart identification information stored in the storage unit, does the control device maintain the state where the guidance information is displayed on the display? The picking system according to claim 9 or 10, wherein the second error information is input to the display and the second error information is displayed on the display.
The picking system according to any one of claims 7 to 11, wherein the article marker is a bar code or a QR code (registered trademark).
The terminal device according to any one of claims 7 to 12, wherein a support member attached to the operator's head supports the display so as to be positioned in front of the operator's eyes. Picking system.