Wireless tag reading device and program

Abstract

To provide a wireless tag reading device and a program that can reduce the time and effort required for searching of an article using a wireless tag.SOLUTION: A wireless tag reading device comprises: input means; reading means; first display means; and first exclusion means. The input means receives one or a plurality of pieces of type information indicating the type of an article to be searched for. The reading means reads a wireless tag that stores the type information. The first display means displays the position of the wireless tag that stores the same type information as the type information received by the input means based on a result of reading the wireless tag performed by the reading means. The first exclusion means excludes the wireless tag whose position is displayed by the first display means from wireless tags to be displayed.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] An embodiment of the present invention relates to a wireless tag reading device and a program. [Background technology]

[0002] Conventionally, a system has been disclosed that searches for a desired item by reading identification information from a wireless tag attached to the item. In such a system, the desired item is searched for by setting the identification information to be searched for in advance.

[0003] However, in the conventional system, when searching for multiple items of the same type, it was necessary to set identification information for the number of items to be searched for, which was time-consuming. Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present invention is to provide a radio tag reading device and a program that can reduce the effort required to search for an article using a radio tag. [Means for solving the problem]

[0005] The wireless tag reading device of the embodiment includes an input means, a reading means, a first display means, and a first exclusion means. The input means receives one or more pieces of type information indicating the type of an article to be searched. The reading means reads a wireless tag that stores the type information. The first display means displays the position of the wireless tag that stores the same type information as the type information received by the input means, based on the result of reading the wireless tag by the reading means. The first exclusion means excludes the wireless tag whose position is displayed by the first display means from the display targets. [Brief description of the drawings]

[0006] [Figure 1] FIG. 1 is a diagram showing an example of an item management system according to the present embodiment. [Diagram 2] FIG. 2 is a block diagram showing an example of a hardware configuration of a wireless tag reading device. [Diagram 3] FIG. 3 is a block diagram showing an example of a functional configuration of the wireless tag reading device according to this embodiment. [Figure 4] FIG. 4 is an explanatory diagram showing an example of the input screen. [Diagram 5] FIG. 5 is an explanatory diagram showing an example of the search screen. [Figure 6] FIG. 6 is an explanatory diagram showing an example of the search list screen. [Figure 7] FIG. 7 is a flowchart illustrating an example of a search process executed by the wireless tag reading device of the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0007] Hereinafter, an embodiment of a wireless tag reader and a program will be described in detail with reference to the accompanying drawings. Note that the embodiment described below is one embodiment of a wireless tag reader and a program, and is not intended to limit the configuration, specifications, etc. of the wireless tag reader and the program.

[0008] 1 is a diagram showing an example of an item management system 1 according to the present embodiment. The item management system 1 is a system for managing items 10 stored in a warehouse or the like. For example, the item management system 1 is an inventory management system for managing the number of items 10, etc.

[0009] The item management system 1 includes a wireless tag 11 attached to an item 10, a wireless tag reader 20, and a management server 30. The wireless tag reader 20 and the management server 30 are connected to each other so as to be able to communicate with each other via wire or wirelessly. The item management system 1 shown in Fig. 1 includes one wireless tag 11 attached to the item 10, one wireless tag reader 20, and one management server 30. However, the item management system 1 may include a plurality of wireless tags 11 attached to the item 10, one wireless tag reader 20, and one management server 30.

[0010] The item 10 is a managed item of the item management system 1. For example, the item 10 is a product.

[0011] The wireless tag 11 is, for example, an electronic tag, an IC tag, an RF tag, or the like. The wireless tag 11 transmits and receives information stored in a storage medium of the wireless tag 11 by short-distance wireless communication. For example, the wireless tag 11 stores identification information in the storage medium. The identification information includes type information and individual information. The type information is information for identifying the type of the item 10 to which the wireless tag 11 is attached. For example, the type information is identification information for identifying a product, such as a JAN (Japan Article Number) code. The individual information is information for identifying each individual item 10 to which the wireless tag 11 is attached. For example, the individual information is information for identifying each individual product, such as an EPC (Electronic Product Code) or a serial number. When the wireless tag 11 receives radio waves for reading out the identification information stored in the storage medium, the wireless tag 11 transmits the identification information. In other words, the wireless tag 11 transmits radio waves having the identification information.

[0012] The wireless tag reader 20 is a reading device that reads the storage medium of the wireless tag 11. The wireless tag reader 20 accepts an input for identifying the wireless tag 11 to be searched for. The wireless tag reader 20 also emits radio waves to read out the identification information stored in the storage medium of the wireless tag 11. When a radio wave is transmitted from the wireless tag 11, the wireless tag reader 20 extracts the identification information by decoding the radio wave received from the wireless tag 11.

[0013] Furthermore, the wireless tag reading device 20 measures the distance and direction to the wireless tag 11 based on the radio waves received from the wireless tag 11. When the wireless tag reading device 20 extracts identification information that matches the search target, it determines that the radio wave intensity of the radio waves that propagated the extracted identification information is the highest. In other words, the wireless tag reading device 20 determines the nearest wireless tag 11. Then, the wireless tag reading device 20 displays the distance and direction to the determined wireless tag 11. This allows the operator to determine the position where the wireless tag 11 being searched for is located.

[0014] The management server 30 is a server device that stores various information related to the items 10 to be managed.

[0015] Here, the operator may wish to search for a plurality of articles 10 of the same type. In this case, conventionally, when type information is input as information for identifying the wireless tag 11 to be searched, the wireless tag reading device first displays the distance and direction to the nearest wireless tag 11 that stores the input identification information. Then, when searching for the wireless tag 11 attached to the next different search target article 10, if the operator finds a search target article 10 that has already been issued, the wireless tag reading device again displays the distance and direction to the wireless tag 11 attached to the found article 10 if the found article 10 is the nearest. This prevents the operator from searching for another article 10.

[0016] Therefore, the wireless tag reading device 20 accepts an operation to exclude the displayed wireless tag 11 from the search target. The wireless tag reading device 20 stores the identification information of the wireless tag 11 read as the search target in the type exclusion list 223 or the individual exclusion list 224. Then, the wireless tag reading device 20 excludes the wireless tag 11 specified by the identification information stored in the type exclusion list 223 or the individual exclusion list 224 from the wireless tag 11 to be searched for thereafter. As a result, the discovered article 10 is excluded from the search target, so even if the discovered article 10 is nearby, the wireless tag reading device 20 does not display the distance and direction to the wireless tag 11 attached to the discovered article 10. This enables the operator to search for another article 10. Furthermore, the wireless tag reading device 20 can reduce the effort of searching for a plurality of articles 10 of the same type.

[0017] Next, the hardware configuration of the wireless tag reader 20 will be described.

[0018] 2 is a block diagram showing an example of a hardware configuration of the wireless tag reading device 20. The wireless tag reading device 20 includes a control unit 210, a storage unit 220, a communication unit 230, an antenna control unit 240, a display unit 250, and an operation unit 260. These units are connected to each other via a system bus 270 such as a data bus or an address bus.

[0019] The control unit 210 is a computer that controls the overall operation of the wireless tag reading device 20 and realizes various functions of the wireless tag reading device 20. The control unit 210 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory). The CPU controls the overall operation of the wireless tag reading device 20. The ROM is a storage medium that stores various programs and data. The RAM is a storage medium that temporarily stores various programs and data. The CPU executes programs stored in the ROM or the storage unit 220, etc., using the RAM as a work area.

[0020] The storage unit 220 is a storage device such as a flash memory. The storage unit 220 stores a control program 221, a search target list 222, a type exclusion list 223, and an individual exclusion list 224. Note that the search target list 222, the type exclusion list 223, and the individual exclusion list 224 may be stored in other devices, not limited to the wireless tag reading device 20.

[0021] The control program 221 is a program for implementing an operating system and functions of the wireless tag reading device 20. The control program 221 includes a program for implementing characteristic functions according to this embodiment.

[0022] The search target list 222 is information having one or more type information indicating the type of the item 10 to be searched for. The type exclusion list 223 is information having one or more type information to be excluded from the search target. The individual exclusion list 224 is information having one or more individual information to be excluded from the search target.

[0023] The communication unit 230 is an interface that executes communication with an external device. For example, the communication unit 230 executes communication with the management server 30 through mobile communication, a wireless LAN (Local Area Network), or the like.

[0024] The antenna control unit 240 is connected to the antenna 241. In addition, the antenna control unit 240 controls the intensity of the radio wave radiated by the antenna 241.

[0025] The antenna 241 is a device that emits radio waves to the wireless tag 11 and receives radio waves emitted by the wireless tag 11. The antenna 241 also converts between electric current and radio waves.

[0026] The display unit 250 is a display device that displays various screens. For example, the display unit 250 is a liquid crystal display.

[0027] The operation unit 260 is an input device that accepts various operations. For example, the operation unit 260 may be a button provided on the wireless tag reading device 20, a touch pad or a touch panel provided on the display unit 250, or other devices.

[0028] Next, a description will be given of functions of the wireless tag reading device 20. Fig. 3 is a block diagram showing an example of the functional configuration of the wireless tag reading device 20 according to this embodiment.

[0029] The CPU of the control unit 210 of the wireless tag reading device 20 loads the control program 221 stored in the storage unit 220 into the RAM, and generates each functional unit in the RAM by operating according to the control program 221. As a result, the control unit 210 of the wireless tag reading device 20 has, as functional units, a search target input unit 2001, a wireless tag reading unit 2002, a position estimation unit 2003, a display control unit 2004, a search list generation unit 2005, an individual exclusion unit 2006, and a type exclusion unit 2007.

[0030] The search target input unit 2001 accepts one or more pieces of type information indicating the type of the item 10 to be searched. The search target input unit 2001 is an example of an input means. For example, the search target input unit 2001 accepts input of type information indicating the type of the item 10 to be searched on an input screen 2100 (see FIG. 4). Alternatively, the search target input unit 2001 may accept the name of the item 10 to be searched. In this case, the search target input unit 2001 acquires type information corresponding to the name of the item 10 to be searched from the management server 30. In this way, the search target input unit 2001 may accept input of type information.

[0031] The wireless tag reading unit 2002 reads the wireless tag 11 that stores the type information. The wireless tag reading unit 2002 is an example of a reading means. More specifically, the wireless tag reading unit 2002 controls the antenna control unit 240 to cause the antenna 241 to emit radio waves for reading the wireless tag 11. The wireless tag reading unit 2002 also extracts the identification information by decoding the radio waves received by the antenna 241. In this way, the wireless tag reading unit 2002 reads the wireless tag 11 that stores the type information and individual information for identifying the item 10.

[0032] The position estimation unit 2003 estimates the position where the wireless tag 11 is located based on the radio waves that propagate the identification information read from the wireless tag 11 by the wireless tag reading unit 2002. More specifically, the position estimation unit 2003 estimates the distance from the wireless tag 11 to the wireless tag reading device 20 based on the radio wave intensity of the radio waves that propagated the identification information. The position estimation unit 2003 also estimates the direction where the wireless tag 11 is located based on the direction in which the radio waves that propagated the identification information were received and the direction of the antenna 241 that was pointed when the radio waves that propagated the identification information were received.

[0033] Furthermore, the position estimation unit 2003 estimates whether or not the wireless tag 11 is placed near the wireless tag reader 20. In other words, the position estimation unit 2003 estimates whether or not the wireless tag 11 is placed within a nearby distance. The nearby distance is a set distance. For example, when the position estimation unit 2003 reads the wireless tag 11, the position estimation unit 2003 gradually reduces the power used by the antenna 241 to emit radio waves. Then, when the position estimation unit 2003 causes the antenna 241 to emit radio waves with power less than the set power, if the position estimation unit 2003 can read the identification information from the wireless tag 11, it estimates that the wireless tag 11 is placed within a nearby distance.

[0034] The display control unit 2004 causes the display unit 250 to display various screens. For example, the display control unit 2004 causes an input screen 2100 to be displayed that accepts one or more pieces of type information indicating the type of the item 10 to be searched for. FIG. 4 is an explanatory diagram showing an example of the input screen 2100. The input screen 2100 includes a type information input field 2101, a type information display field 2102, an add button 2103, a delete button 2104, a delete all button 2105, and a search button 2106. The type information input field 2101 is a field for inputting type information indicating the type of the item 10 to be searched for. The type information display field 2102 is a field for displaying type information added as the type of the item 10 to be searched for.

[0035] The add button 2103 is a button for adding the type information input in the type information input field 2101 as the type of the item 10 to be searched for. The delete button 2104 is a button for deleting the type information added as the type of the item 10 to be searched for. For example, the delete button 2104 accepts an operation to delete the type information selected in the type information display field 2102. The delete all button 2105 is a button for deleting all of the type information added as the type of the item 10 to be searched for. For example, the delete button 2104 accepts an operation to delete all of the type information in the type information display field 2102. The search button 2106 is a button for accepting an operation to end the input of type information indicating the type of the item 10 to be searched for and start searching for the wireless tag 11.

[0036] For example, the display control unit 2004 displays a search screen 2200 showing the position of the wireless tag 11 that stores the same type information as the type information accepted by the search target input unit 2001, based on the result of reading the wireless tag 11 by the wireless tag reading unit 2002. The display control unit 2004 is an example of a first display means. FIG. 5 is an explanatory diagram showing an example of the search screen 2200. The search screen 2200 has a position display area 2210, a type information display area 2220, an individual information display area 2221, a stop button 2201, a next type button 2202, a next number button 2203, an end button 2204, a search list button 2205, and a back button 2206.

[0037] The position display area 2210 is an area for displaying the position of the wireless tag 11. A first mark 2211 indicating the position of the wireless tag reading device 20 and a second mark 2212 indicating the position of the wireless tag 11 are displayed in the position display area 2210. The display control unit 2004 causes the second mark 2212 to be displayed in the position display area 2210 based on the direction and distance in which the wireless tag 11 is located that are estimated by the position estimation unit 2003.

[0038] The display control unit 2004 selects the identification information having the type information input on the input screen 2100 from the identification information read by the wireless tag reading unit 2002 from the wireless tag 11. That is, the display control unit 2004 selects the identification information having the type information registered in the search target list 222. The display control unit 2004 also excludes the identification information having the type information registered in the type exclusion list 223 and the individual information registered in the individual exclusion list 224. The display control unit 2004 also identifies the identification information having the strongest radio wave intensity of the radio waves that propagated the identification information from among the remaining identification information that has not been excluded. Then, the display control unit 2004 displays the second mark 2212 at the position of the wireless tag 11 that stores the identified identification information based on the estimation result of the position estimation unit 2003.

[0039] In this way, the display control unit 2004 does not display the position of the wireless tag 11 that stores the individual information that the individual exclusion unit 2006 has registered in the individual exclusion list 224. Moreover, the display control unit 2004 does not display the position of the wireless tag 11 that stores the type information that the type exclusion unit 2007 has registered in the type exclusion list 223. This allows the operator to search for the next item 10.

[0040] The type information display area 2220 is an area that displays type information of the identification information read from the wireless tag 11 corresponding to the second mark 2212 displayed in the position display area 2210. In other words, the type information display area 2220 is an area that displays type information propagated by the radio wave with the strongest radio wave intensity. The individual information display area 2221 is an area that displays individual information of the identification information read from the wireless tag 11 corresponding to the second mark 2212 displayed in the position display area 2210. In other words, the type information display area 2220 is an area that displays individual information propagated by the radio wave with the strongest radio wave intensity.

[0041] The stop button 2201 is a button for accepting an operation to stop searching for the wireless tag 11. The next type button 2202 is a button for accepting an operation to change the type information of the wireless tag 11 to be displayed in the position display area 2210, among the identification information input on the input screen 2100, to the next type information. In other words, the next type button 2202 is a button for accepting an operation to exclude the type information of the wireless tag 11 to be displayed in the position display area 2210 from the search target. The next number button 2203 is a button for accepting an operation to change the individual information of the wireless tag 11 to be displayed in the position display area 2210, among the identification information input on the input screen 2100, to the next individual information. In other words, the next number button 2203 is a button for accepting an operation to exclude the type information of the wireless tag 11 to be displayed in the position display area 2210 from the search target.

[0042] Here, when the display control unit 2004 initially displays the search screen 2200, the display control unit 2004 displays the next type button 2202 and the next number button 2203 in a non-selectable state, such as grayed out. If the distance to the wireless tag 11 is equal to or greater than the proximal distance, the operator of the wireless tag reading device 20 may not have found the wireless tag 11. However, when the next number button 2203 is pressed, the wireless tag 11 is excluded from the display target. In this case, the operator cannot find the wireless tag 11. Therefore, the display control unit 2004 displays the next number button 2203 selectable when the distance to the wireless tag 11 is less than the proximal distance. That is, the display control unit 2004 displays the next number button 2203 selectable when it is estimated that the article 10 to be searched has been found. That is, the next number button 2203 accepts an operation to exclude the wireless tag 11 from the display target when the distance to the wireless tag 11 at the position displayed by the display control unit 2004 is less than a threshold value. The next number button 2203 is an example of a first operation means.

[0043] There are cases where the operator of the wireless tag reading device 20 wants to collect in advance an article 10 to which a wireless tag 11 with specific type information is attached among the type information input on the input screen 2100. In such a case, when the type information of the wireless tag 11 displayed in the position display area 2210 does not indicate the type of the article 10 that the operator wants to collect in advance, the operator can collect the desired article 10 by excluding it from the display target early. Therefore, when the display control unit 2004 displays the position of the wireless tag 11 in the position display area 2210, the display control unit 2004 displays the next type button 2202 selectably. That is, the next number button 2203 accepts an operation to exclude the wireless tag 11 that stores the same type information as the type information stored in the wireless tag 11 from the display target when the display control unit 2004 displays the position of the wireless tag 11. The next number button 2203 is an example of a second operation means.

[0044] The end button 2204 is a button that accepts an operation to end the search for the wireless tag 11. The search list button 2205 is a button that accepts an operation to display a list of the articles 10 to which the searched wireless tag 11 is attached. The back button 2206 is a button that accepts an operation to display the input screen 2100.

[0045] When the search list button 2205 is pressed, the display control unit 2004 displays the search list screen 2300. FIG. 6 is an explanatory diagram showing an example of the search list screen 2300. The search list screen 2300 has a list showing the name of the article 10 and the number of articles found for each type information received by the search target input unit 2001. That is, the display control unit 2004 displays the name of the article 10 specified by the type information and the number of wireless tags 11 excluded by the individual exclusion unit 2006 for each type information received by the search target input unit 2001. The display control unit 2004 is an example of a second display means. The operator can grasp the search results up to the present time point by the search list screen 2300. In addition, the search list screen 2300 has a back button 2301. The back button 2301 is a button that receives an operation to display the search screen 2200.

[0046] The search list generation unit 2005 generates a list of the articles 10 to which the searched wireless tags 11 are attached. More specifically, the search list generation unit 2005 generates a list having the names of the articles 10 specified by the type information and the number of articles searched for, for each type information received by the search target input unit 2001. The search list generation unit 2005 acquires the names of the type information received by the search target input unit 2001 from the management server 30.

[0047] Here, when the operator finds an article 10 with a wireless tag 11 attached, he or she excludes the wireless tag 11 attached to the found article 10 from the search targets. The search list generation unit 2005 counts the number of individual information items excluded from the search targets for each type information item as the number of items searched. In other words, the search list generation unit 2005 counts the number of times the next number button 2203 shown in Fig. 5 is pressed for each type information item. In this way, the search list generation unit 2005 generates a list of articles 10 to which the searched wireless tags 11 are attached.

[0048] The individual exclusion unit 2006 excludes the wireless tag 11, whose position has been displayed by the display control unit 2004, from the display targets. The individual exclusion unit 2006 is an example of a first exclusion means. More specifically, the individual exclusion unit 2006 excludes the wireless tag 11 from the display targets when the next number button 2203 receives an operation. That is, the individual exclusion unit 2006 registers the individual information read by the wireless tag reading unit 2002 in the individual exclusion list 224.

[0049] The type exclusion unit 2007 excludes from the display targets the wireless tags 11 that store the same type information as the type information stored in the wireless tag 11 located at the position displayed by the display control unit 2004. The type exclusion unit 2007 is an example of a second exclusion means. When the next type button 2202 receives an operation, the type exclusion unit 2007 excludes from the display targets the wireless tags 11 that store type information. That is, the type exclusion unit 2007 registers the type information read by the wireless tag reading unit 2002 in the type exclusion list 223.

[0050] Next, a description will be given of a search process executed by the wireless tag reading device 20. Here, Fig. 7 is a flowchart showing an example of the search process executed by the wireless tag reading device 20 of the embodiment.

[0051] The display control unit 2004 displays an input screen 2100 for inputting type information indicating the type of the article 10 to be searched for (step S1).

[0052] The search target input unit 2001 generates a search target list 222 having one or more pieces of type information input on the input screen 2100 (step S2).

[0053] The display control unit 2004 displays a search screen 2200 for searching for the wireless tag 11 that stores the type information included in the search target list 222 (step S3).

[0054] The wireless tag reading unit 2002 determines whether or not the wireless tag 11 storing the type information included in the search target list 222 has been read (step S4). If the wireless tag 11 storing the type information included in the search target list 222 has not been read (step S4; No), the wireless tag reading unit 2002 waits in step S4.

[0055] When a wireless tag 11 that stores type information included in the search target list 222 is read (step S4; Yes), the display control unit 2004 displays the position of the wireless tag 11 in the position display area 2210 (step S5).

[0056] The display control unit 2004 enables the next type button 2202 (step S6). That is, the display control unit 2004 displays the next type button 2202 so that it is selectable.

[0057] The display control unit 2004 determines whether or not the next type button 2202 has been pressed (step S7).

[0058] When the next type button 2202 is pressed (step S7; Yes), the type exclusion unit 2007 registers the type information stored in the wireless tag 11 to be displayed in the position display area 2210 in the type exclusion list 223 (step S8).

[0059] If the next type button 2202 has not been pressed (step S7; No), the display control unit 2004 determines whether or not the distance from the wireless tag reading device 20 to the wireless tag 11 is less than the vicinity distance (step S9). If it is not less than the vicinity distance (step S9; No), the wireless tag reading device 20 proceeds to step S7.

[0060] If it is less than the vicinity distance (step S9; Yes), the display control unit 2004 enables the next number button 2203 (step S10). That is, the display control unit 2004 displays the next number button 2203 so that it is selectable.

[0061] The display control unit 2004 determines whether or not the next number button 2203 has been pressed (step S11). If the next number button 2203 has not been pressed (step S11; No), the wireless tag reading device 20 proceeds to step S7.

[0062] When the next number button 2203 is pressed (step S11; Yes), the individual exclusion unit 2006 registers the individual information stored in the wireless tag 11 to be displayed in the position display area 2210 in the individual exclusion list 224 (step S12).

[0063] Then, the management server 30 proceeds to step S7.

[0064] As described above, the wireless tag reading device 20 according to the present embodiment accepts input of type information indicating the type of the article 10 to be searched. The wireless tag reading device 20 also reads the wireless tag 11 that stores the type information. The wireless tag reading device 20 also displays the position of the wireless tag 11 that stores the type information based on the radio waves transmitted from the wireless tag 11. The wireless tag reading device 20 then excludes the wireless tag 11 whose position has been displayed from the display object. That is, the wireless tag reading device 20 excludes the wireless tag 11 that has been found by the operator by displaying the position from the display object, and displays another wireless tag 11 that stores the type information. As a result, even if the individual identification information of the search object is not input, the wireless tag reading device 20 displays another wireless tag 11 that stores the input type information. Therefore, since it is not necessary to input the individual identification information of the search object, the wireless tag reading device 20 can reduce the effort required for searching the article 10 using the wireless tag 11. Furthermore, the wireless tag reading device 20 registers the read wireless tag 11 in the type exclusion list 223 or the individual exclusion list 224. The wireless tag reading device 20 excludes the wireless tag 11 registered in the type exclusion list 223 or the individual exclusion list 224 from the objects to be displayed, and displays another wireless tag 11 that stores type information.

[0065] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, and are included in the scope of the invention and its equivalents described in the claims.

[0066] The programs executed by each device in the above-mentioned embodiments and modifications are provided by being pre-installed in a storage medium (ROM or storage unit) included in each device, but this is not limited to the above. For example, the programs may be provided by being recorded in an installable or executable format on a computer-readable storage medium such as a CD-ROM, a flexible disk (FD), a CD-R, or a DVD (Digital Versatile Disk). Furthermore, the storage medium is not limited to a medium independent of a computer or an embedded system, but also includes a storage medium in which a program transmitted via a LAN (Local Area Network), the Internet, etc. is downloaded and stored or temporarily stored.

[0067] In addition, the programs executed by each device in the above embodiments and modified examples may be stored on a computer connected to a network such as the Internet and provided by downloading them via the network, or may be provided or distributed via a network such as the Internet. [Explanation of symbols]

[0068] 1. Inventory management system 10 Goods 11. Radio tag 20 Radio tag reader 30 Management Server 222 Search Target List 223 Category Exclusion List 224 Individual Exclusion List 2001 Search target input section 2002 Radio tag reading unit 2003 Position estimation part 2004 Display control unit 2005 Search List Generation Unit 2006 Individual exclusion section 2007 Category Exclusion Section 2100 Input screen 2101 Type information input field 2102 Type information display field 2103 Add button 2104 Delete button 2105 Delete button 2106 Search button 2200 Search screen 2201 Stop button 2202 Type button 2203 Number Button 2204 Exit button 2205 Search List Button 2206 Back button 2210 Position display area 2211 1st Mark 2212 2nd Mark 2220 Type information display area 2221 Individual information display area 2300 Search List Screen 2301 Back button [Prior art documents] [Patent documents]

[0069] [Patent Document 1] JP 2014-139753 A

Claims

1. An input means for receiving one or more types of information indicating the type of the item to be searched for; a reading means for reading a wireless tag storing the type information; a first display means for displaying a position of the wireless tag storing the same type information as the type information received by the input means, based on a result of reading the wireless tag by the reading means; a first excluding means for excluding the wireless tag whose position has been displayed by the first display means from the display targets; A wireless tag reading device comprising:

2. a first operation means for accepting an operation to exclude the wireless tag from being displayed when a distance between the position displayed by the first display means and the wireless tag is less than a threshold value; the first exclusion means excludes the wireless tag from a display target when the first operation means accepts an operation; 2. The wireless tag reader according to claim 1.

3. a second excluding means for excluding from the display target the wireless tag that stores the same type information as the type information stored in the wireless tag located at the position displayed by the first display means; 3. The wireless tag reader according to claim 1 or 2.

4. a second operation means for accepting an operation to exclude, from a display target, a wireless tag that stores the same type information as the type information stored in the wireless tag when the first display means displays the position of the wireless tag, the second exclusion means, when the second operation means accepts an operation, excludes the wireless tag storing the type information from a display target.

4. The wireless tag reader according to claim 3.

5. The reading means reads the wireless tag that stores the type information and individual information for identifying the article, The first exclusion means registers the individual information read by the reading means, the first display means does not display the location of the wireless tag that stores the individual information registered by the first exclusion means; The wireless tag reader according to any one of claims 1 to 4.

6. a second display means for displaying, for each of the type information received by the input means, a name of an article identified by the type information and the number of the wireless tags excluded by the first exclusion means; The wireless tag reader according to any one of claims 1 to 5.

7. A wireless tag reader An input means for receiving one or more types of information indicating the type of the item to be searched for; a reading means for reading a wireless tag storing the type information; a first display means for displaying a position of the wireless tag storing the same type information as the type information received by the input means, based on a result of reading the wireless tag by the reading means; a first excluding means for excluding the wireless tag whose position has been displayed by the first display means from the display targets; A program to make it function as such.

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