JP4563071B2 - Situation estimation apparatus and situation estimation method - Google Patents

Description

  The present invention relates to a situation estimation apparatus and situation estimation method for managing a situation between an article and an article holder who holds the article.

2. Description of the Related Art Conventionally, an apparatus has been proposed for notifying that an article carried by a user who is the owner of the article has been lost. For example, in the technique disclosed in Patent Document 1, a user registers an article to be carried (with a wireless tag) in a portable device, and the portable device (searching means) detects a radio wave transmitted from the wireless tag. Search for registered articles. If the portable device cannot search for the wireless tag, the user can be notified that the article corresponding to the wireless tag has been lost.
JP 2002-163301 A

  However, the article management apparatus described in Patent Document 1 registers information for specifying an article as a carried item in advance, and when the registered article is no longer detected from the user-owned portable device, “the user dropped the article Can be determined. However, every time a new article is carried, it is necessary to register information for identifying the article as a carried article. Also, just because “the user has left the article” does not necessarily mean that “the user has dropped the article”. For example, when the situation that “the user is away from the article” occurs in the train, it can be said that “the user dropped the article”. However, for example, when the situation that “the user and the article are separated” occurs at home, or occurs in the product sales area operated by the user, “the user dropped the article” rather than “the user dropped the article” It is possible to judge that it is more appropriate.

  Therefore, in the present invention, a situation estimation apparatus and situation estimation method that can solve the above-described problems and can automatically estimate the situation between the article owner and the article according to the attribute of the place where the article exists. The purpose is to provide.

  In order to solve the above-described problem, the situation estimation apparatus according to the present invention is determined based on a plurality of reader means for uniquely identifying an article holder and an article existing in a predetermined detection range, and an attribute of the article. Field attribute deriving means for deriving the attributes of the field to be obtained, attribute information storage means for retaining attribute information indicating the correspondence between the article holder and the article held by the article owner as carry-on goods, and the plurality of readers The first reader means, which is one of the means, uniquely identifies the article owner and the article registered in the attribute information storage means as a carry-on article of the article owner, and then the first reader The second reader means whose detection range is a range different from the reader means is able to uniquely identify the article holder, and corresponds to the article holder based on the attribute information storage means. When the article cannot be uniquely specified, the field attribute deriving unit derives the field attribute that is the detection range by the first reader unit, and the second reader unit is based on the derived field attribute. And a situation estimation means for estimating the situation of the article that could not be uniquely identified.

  Further, the situation estimation method of the present invention is a situation estimation method in a situation estimation apparatus having a plurality of reader means for uniquely identifying an article holder and an article existing in a predetermined detection range, A first identification step in which a first reader means, which is one of the reader means, uniquely identifies an article owner and an article registered as a carry-on article of the article owner; and the first reader means A second identification step in which the second reader means having a detection range different from the above uniquely identifies the article owner and the article recognized as the carry-on article of the article owner, and the second identification step If the article holder can be specified uniquely and the article that is the carry-on item of the article holder cannot be specified uniquely, the first reader means can detect it. Based on the field attribute ranges, the second reader means comprises a a condition estimation step of estimating the state of the article that could not be uniquely identified.

  After the first reader means uniquely identifies the article holder and the article, the second reader means uniquely identifies the article holder, but uniquely identifies the article that the article holder should hold If it is not possible, that is, if it can be determined that the article has moved away from the article holder, the field attribute of the area where the article that is separated from the article holder exists is derived from the field attribute deriving means, and based on the attribute of the field Thus, by estimating the situation in which the article has left, the condition of the article can be accurately determined, and the article owner can determine whether the article has been lost or simply placed. it can. In the derivation operation, the field attribute may be estimated based on the attribute of the article existing in the field, or may be read from the field attribute information stored in advance.

  In addition, the situation estimation apparatus of the present invention includes service determination means for determining a service according to the situation estimated by the situation estimation means, and service provision means for providing the service determined by the service determination means.

  Judge the service (for example, burnable garbage service, lost property service) according to the condition of the goods and provide the service (notify that the lost item has been lost, or notify that the unburnable garbage is in the burning garbage bin) Thus, the article owner can know the act on the article (or whether the act was valid). For example, an article holder who has been provided can know that the article (carrying goods) has been dropped, and can know that the garbage has been thrown away by mistake. The provision of the service includes directly transmitting a message corresponding to the service to the article holder, displaying the message corresponding to the service where the article owner can see, and the like.

  In the present invention, the second reader means can uniquely identify the article holder, but cannot uniquely identify the article to be held by the article holder, that is, if the article is separated from the article holder. If it can be determined, accurately determine the status of the article by estimating under what circumstances the article has been released based on the attributes of the field where the article away from the article holder exists. And the article owner can determine whether the article has been lost or simply placed.

  The present invention can be readily understood by considering the following detailed description with reference to the accompanying drawings shown as examples. Subsequently, embodiments of the present invention will be described with reference to the accompanying drawings. Where possible, the same parts are denoted by the same reference numerals, and redundant description is omitted.

  First, an outline of the present invention will be described. FIG. 1 is a conceptual diagram illustrating a situation handled by the situation estimation apparatus 100 according to the present embodiment. The situation estimation apparatus 100 includes a tag reader 201 and a tag reader 202. The tag reader 201 is a tag reader whose detection range is the store 300, and includes wireless tags 301 to 309 attached to goods (goods, carry-on goods) and goods holders (shoppers X, shopkeepers Y) that hold the goods. This is the part that is read so that it can be uniquely identified. The tag reader 202 is a part that reads so that a wireless tag existing in a predetermined range can be uniquely specified. Of the above-mentioned articles, a carry-on article refers to an article carried by the article holder, and a product indicates an article not carried by the article holder.

  The tag reader 201 reads a wireless tag existing in the store 300. In FIG. 1, the wireless tag 309 held by the store owner Y, the wireless tags 303 and 304 attached to the items carried by the store owner Y, and The wireless tags 305 to 307 attached to the product are read. In addition, when the shopper X enters the store 300, the tag reader 201 reads the wireless tag 308 held by the shopper X and 301 and 302 attached to the goods carried by the shopper X.

  Next, the shopper X and the store owner Y move from the store 300 to the detection range of the tag reader 202. FIG. 2 is a conceptual diagram showing a situation when the shopper X and the shopkeeper Y move to the detection range of the tag reader 202 in the situation handled by the situation estimation apparatus 100.

  According to FIG. 2, the shopper X moves to the detection range of the tag reader 202 with the carry-on item to which the wireless tag 302 is attached. In addition, the store owner Y moves to the detection range of the tag reader 202 with the carry-on item to which the wireless tag 304 is attached.

  The situation estimation apparatus 100 according to the present embodiment determines that the shopper X currently does not have the carry-on item to which the wireless tag 301 to be held by the shopper X is attached based on the detection result of the tag reader 202. In addition, the situation estimation apparatus 100 determines that the store owner Y currently does not have the carry-on item with the wireless tag 303 to be held by the store owner Y.

  And the situation estimation apparatus 100 is based on the situation detected last time (see FIG. 1) and the situation detected this time (see FIG. 2), because the lost personal belongings are in a store that is not the shopper's sneak peek, It is possible to determine that the shopper X has lost the carry-on item to which the wireless tag 301 to be held by the shopper X is attached. Similarly, the situation estimation apparatus 100 determines that the store owner Y has placed the carry item with the wireless tag 303 to be held in the store 300 since the store owner Y has the carry item of the store owner Y. be able to.

  As described above, the situation estimation apparatus 100 can estimate the situation more accurately by using the article and field attributes automatically specified from the article attribute information and the detection situation. And the situation estimation apparatus 100 performs a lost article notification service based on the estimated situation. Specifically, it is displayed on the display unit of the situation estimation apparatus 100 that there has been a lost item, or the shopper X who is the owner of the drop is notified that the item has been lost.

  Hereinafter, details of the situation estimation apparatus 100 will be described. FIG. 3 is a block configuration diagram of the situation estimation apparatus 100. The situation estimation apparatus 100 is connected to a tag reader 201 (first reader means) and a tag reader 202 (second reader means) disposed outside, and the wireless tags 301 to 101 that are uniquely identified and read by the tag readers 201 and 202 are connected. 309 information is acquired.

  First, the wireless tag readers 201 and 202 and the wireless tags 301 to 309 connected to the situation estimation apparatus 100 will be described.

The tag reader 201 reads the wireless tag ID stored in the wireless tags 301 to 309 and transmits the wireless tag ID to the wireless tag detection history storage unit 51 together with a reader ID that uniquely identifies the tag reader 201. Here, the reader ID for uniquely identifying the tag reader 201 may be assigned by attaching a wireless tag to the tag reader 201, or may be given in advance by an identification number given at the time of manufacturing the tag reader. Here, the ID assigned to the tag reader 201 is “B001”.
Similarly, the tag reader 202 reads the tag ID of the wireless tag existing in the detection range and transmits it to the wireless tag detection history storage unit 51. The ID assigned to the tag reader 202 is “B002”.

  The wireless tags 301 to 309 are read-only wireless tags configured by RFID (Radio Frequency Identification) chips, and are assigned unique wireless tag IDs at the time of manufacturing. Here, the wireless tag IDs of the wireless tags 301, 302, 303, 304, 305, 306, 307, 308, and 309 are set to “8001”, “8002”, “8003”, “8004”, “8005”, and “8006”, respectively. , “8007”, “0001”, and “0002”. When the wireless tags 301 to 309 receive carrier waves from the tag readers 201 and 202, the wireless tags 301 and 309 modulate the carrier waves and wirelessly transmit a carrier wave including a signal indicating the assigned ID to the tag readers 201 and 202. Note that the wireless tag held by the article holder may be provided with a message communication function so that the message is received from the situation estimation apparatus 100 and notified to the article holder.

  Next, the configuration of the situation estimation apparatus 100 will be described. The situation estimation apparatus 100 includes an estimation unit 10, an operation unit 20, a display unit 30 (service providing unit), a service providing unit 40 (service determining unit), a storage unit 50, a communication unit 60 (service providing unit), and a control unit 70. Prepare. The estimation unit 10 includes an object attribute estimation unit 11, a field attribute estimation unit 12 (field attribute derivation unit), and a situation estimation unit 13 (situation estimation unit). The storage unit 50 includes a wireless tag detection history storage unit 51, an attribute An information storage unit 52 (attribute information storage means), a situation storage unit 53, an inference rule storage unit 54, a situation / service correspondence storage unit 55, and a service storage unit 56 are provided. The situation estimation apparatus 100 is physically configured to include a CPU (Central Processing Unit), RAM, ROM, keyboard, display, and the like. Further, the display unit 30 is not an essential constituent requirement.

  The object attribute estimation unit 11 is a part that estimates the attribute information of the article (who is the carrier) based on the detection history of the wireless tag stored in the wireless tag detection history storage unit 51 described later. The processing in the case where the object attribute estimation unit 11 estimates a carrier who is one of the attribute information of the article is shown in the figure. FIG. 4 is a flowchart showing a process in which the object attribute estimation unit 11 estimates a carrier who is one of the item attribute information.

  The object attribute estimation unit 11 refers to the wireless tag detection history storage unit 51 at regular time intervals, and for the ID that uniquely identifies the article holder, the set of previously detected wireless tag IDs and the wireless tag ID detected this time The set is compared (S101). Then, the object attribute estimation unit 11 determines whether or not the wireless tag readers 201 and 202 are detected at both the previous time and the current time (S102). Is set to 0 (S103). If it can be determined that the object attribute estimation unit 11 can detect both times, the object attribute estimation unit 11 increases the value of the number of times R by 1 in association with the wireless tag ID (S104), and determines the value of R (S105). If the value of R is N or more (a certain value or more) (S106), the article to which the wireless tag ID is affixed is regarded as a carry item of the article owner (S107). Then, the ID that uniquely identifies the article holder is registered in the attribute information storage unit 52 as the attribute information of the article in association with the ID that uniquely identifies the carry item (see FIG. 10).

  The field attribute estimation unit 12 specifies the attribute of the detection range based on the attribute information of the article existing in the detection range of the target tag reader specified in advance, and is determined for each common attribute based on the specified attribute. This is the part that specifies the field attributes. Note that the detection range here is designated in advance by the operator of the situation estimation apparatus 100, such as a detection range of a single tag reader, an AND range of a plurality of tag readers, or a detection range of an OR.

  The processing flow for specifying the attribute of the detection range is shown in the figure. FIG. 5 is a process flow diagram for specifying the field attributes. First, the target detection range is determined by the reader ID (S201). The field attribute estimation unit 12 sets the detection range of the tag reader as the detection range when the reader ID of the tag reader indicating the detection range of interest is set in advance from the operation unit 20 by the operator.

  The owner of the item can express the detection range of interest by a plurality of tag readers, or the product (and) or sum (or) of a plurality of tag readers. For example, a range obtained by taking the AND of two tag readers is set. In this case, the range obtained by taking the AND can be set as the detection range of interest. When the ID of the tag reader is not given by the operator of the situation estimation apparatus 100, the detection range of the tag reader is set as the detection range to which attention is paid as it is.

  Next, the field attribute estimation part 12 specifies the articles | goods which exist in the said detection range (S202). Specifically, a set of wireless tag IDs detected by the tag readers 201 and 202 is acquired with reference to the wireless tag detection history storage unit 51.

Then, the field attribute estimation unit 12 refers to the attribute information storage unit 52 to acquire the attribute information of the article of the acquired set of wireless tag IDs (S203), and the field attribute estimation unit 12 is based on the acquired attribute information of the article. The common attribute level is calculated (S204). As a result, an attribute value having a common attribute level exceeding the threshold is set as a common attribute of the article. The common attribute level is determined by the following calculation formula.

And the field attribute estimation part 12 specifies the attribute of the detection range to which its attention is paid by applying an attribute inference rule (S205). The attribute inference rule is described in the following format. "" Common attribute = "Common attribute name = Common attribute value""→" Field attribute "
The attribute inference rule includes a common attribute name (category, owner, role, etc.) and a common attribute value (common attribute name in the common attribute name) in the common attribute whose common attribute degree calculated based on the above formula is a predetermined value or more. Corresponding specific value (for example, name of Tanaka, product, etc.) is specified, and the specified common attribute is a rule with the field attribute. For example, when common attribute = “owner = Tanaka” The field attributes are determined by Tanaka's territory.

  Next, the field attribute estimation unit 12 re-specifies a detection range in which the field attribute is valid (S206). That is, the field attribute estimation unit 12 refers to the attribute information of the article in the attribute information storage unit 52, and acquires the reader ID of the tag reader that detects the article that constitutes the common attribute. The field attribute estimation unit 12 compares the reader ID of the acquired tag reader with the reader ID of the tag reader that configures the detection range of interest set by the operator, and the tag reader of the tag reader that configures the detection range of interest of the acquired tag reader. If the tag reader is a part of the tag reader (that is, the operator has registered a plurality of tag readers as a detection range of interest, but the set of articles that actually have a common attribute value is part of the tag reader set by the operator. If the tag reader exists within the detection range of the tag reader, the acquired tag reader is set as the reader ID of the site.

  Then, the field attribute estimation unit 12 sets a field ID for each common attribute, generates field attribute information, and registers the field attribute information in the attribute information storage unit 52 (see FIG. 9).

  Further, the field attribute estimation unit 12 refers to the common attribute of the tag reader that constitutes the detection range of interest and the adjacent tag reader, and if the common attribute that identifies the attribute of the detection range has the same common attribute, the tag reader And the sum space of the tag readers constituting the detection range of interest is set as the reader ID of the detection range. Then, the field attribute estimation unit 12 stores the reader ID, the attribute, and the constituent object ID specifying the field attribute as field attribute information in the attribute information storage unit 52 (see FIG. 9) (S207).

  Returning to FIG. 3, the description will be continued. The situation estimation unit 13 estimates a detailed situation based on the situation that has occurred in the real world. A process in the case where the situation estimation unit 13 estimates the situation where the article owner and the article are separated will be described. FIG. 6 is an operation flowchart for estimating the situation. Here, an inference rule for inferring the situation that “the article holder and the article are separated” is stored in the inference rule storage unit 54, and the situation estimation unit 13 refers to the inference rule storage unit 54 to infer Get the rules.

  The situation estimation unit 13 refers to the wireless tag detection history storage unit 51 at regular time intervals, and for the ID that uniquely identifies the article holder, the set of wireless tag IDs simultaneously detected at the time of the previous comparison and the current time The set of detected wireless tag IDs is compared (S301). Then, the situation estimation unit 13 determines whether or not the wireless tag ID to be compared is detected at both the previous time and the current time (S302). And when the situation estimation part 13 judges that it detected at both time points, the goods owner has the goods specified by the said wireless tag ID at both the previous time and this time, and the goods owner Is determined to be held (S303).

  The situation estimation unit 13 determines whether the tag reader 201 or 202 has not detected the wireless tag at both time points, but has detected the wireless tag last time (S304). The unit 13 refers to the attribute information of the article in the attribute information storage unit 52, and acquires the attribute information corresponding to the tag ID (S305). Then, the situation estimation unit 13 determines whether or not the name of the article owner that has been detected together as the carry person in the attribute information of the article is registered, that is, whether or not the article is a carry article. (S306) If the situation estimation unit 13 determines that the item is a carry-on item, the situation estimation unit 13 determines that the item holder is separated from the item. The situation estimation unit 13 stores the estimated situation as situation information in the situation storage unit 53 (see FIG. 11) and transmits it to the service providing unit 40.

  Further, when the situation estimation unit 13 determines the situation in the real world as described above, the situation estimation unit 13 infers a more detailed situation using the situation in the real world. Specifically, the situation that “the article owner is separated from the article” and the accompanying information, that is, the attribute information of the article and the attribute information of the place are acquired from the attribute information storage unit 52, and the attribute information of the place, the article By using the attribute information and inference rules, a more detailed situation is inferred.

  For example, in order for the situation estimation unit 13 to infer the situation that “the article holder has placed the article” from the situation that “the article holder has separated the article”, first, “the article owner and the article are In the situation of “separated”, the tag reader detecting the separated article is identified. Then, the situation estimation unit 13 refers to the attribute information storage unit 52 and acquires the attribute information of the place including the reader ID of the tag reader. Furthermore, the situation estimation unit 13 refers to the attribute information of the article in the attribute information storage unit 52, and acquires the attribute information of the article associated with the tag ID of the away article. Then, if it is registered as the acquired attribute information that the article owner of the distant article is registered, the situation estimation unit 13 determines that the article holder has placed the article. Then, the situation estimation unit 13 stores the estimated situation as situation information in the situation storage unit 53 (see FIG. 11) and transmits it to the service providing unit 40.

  Further, in order to infer the situation that “the article owner has dropped the article” from the situation that “the article owner has separated the article”, the situation estimation unit 13 firstly “ In the situation of “separated”, the tag reader that detects the article separated from the article owner is identified. Then, the situation estimation unit 13 refers to the field attribute information in the attribute information storage unit 52 and acquires the field attribute information including the tag reader as a reader ID. Furthermore, the situation estimation unit 13 refers to the item attribute information in the attribute information storage unit 52 and acquires the item attribute information associated with the tag ID of the away item. Based on the attribute information of the article indicating the carrier and the attribute of the place, it is determined that the article has been dropped if it is not registered that the article owner of the article is a territory. . Then, the situation estimation unit 13 stores the estimated situation in the situation storage unit 53 as situation information, and at the same time transmits it to the service providing unit 40.

  Returning to FIG. 3, the description will be continued. The operation unit 20 is a part that receives information input by an operator such as inference rules and attribute information.

  The display unit 30 is a part that displays service contents when providing a service, and displays, for example, that an article holder has lost an article. The display unit 30 has an arbitrary configuration, and even if it is not included in the situation estimation device 100, there is no problem in operation.

  The service providing unit 40 is a part that provides a service according to the situation. That is, the service providing unit 40 refers to the situation / service correspondence storage unit 55 to determine and acquire the service associated with the situation received from the situation estimation unit 13. Then, the service providing unit 40 refers to the service storage unit 56 to acquire and provide the content of the corresponding service. For example, if the situation / service correspondence storage unit 55 stores the relationship “the owner has dropped the property → the lost property service”, the service providing unit 40 may identify the situation / service relationship and “Mr. Yoshida. “I dropped my wallet”, so I provided a lost item service to “Mr. Yoshida,” the owner of the goods. As the lost article service, there is a service for notifying an article owner that an article has been lost.

  The wireless tag detection history storage unit 51 stores the tag ID of the wireless tag (article holder, provided in the article) read by the tag readers 201 and 202, the reader ID of the detected tag reader, and the detection time. An example of the wireless tag detection history storage unit 51 will be described. FIG. 7 is an explanatory diagram of history information stored in the wireless tag detection history storage unit 51. As illustrated in FIG. 7, the wireless tag detection history storage unit 51 stores a tag ID, a reader ID, and a detection time in association with each other. In FIG. 7, tag IDs “0001” and “0002” indicating the owner of the article and tag IDs “8001”, “8002”,..., “8007” indicating the article are stored as the detected tag IDs. Corresponding to these tag IDs, the reader ID of the tag reader that detected the tag ID is stored in association with the detected time.

  The attribute information storage unit 52 is a part that stores attribute information of elements constituting the real world (articles, article holders, and areas in which articles / item holders exist). A specific example of stored attribute information will be described. FIG. 8 is a diagram illustrating a specific example of the attribute information of the article owner. The attribute information of the article owner is configured by associating an ID and a name, and is information input in advance by an operator of the situation estimation apparatus 100.

  The attribute information storage unit 52 stores the attribute information of the article. FIG. 10 is an explanatory diagram illustrating a specific example of the attribute information of an article. Whether the attribute information of an article is an article ID, the name of the article, the category of the article, the owner of the article, information indicating whether the article is carried (who is the carryer), a product, or not It consists of information (role) that indicates. Information other than information indicating whether the article is to be carried (who is the carry person) is information input in advance by the operator of the situation estimation apparatus 100, and the article is carried. Information indicating who the person is with is estimated and registered by the object attribute estimation unit 11.

  Further, the attribute information storage unit 52 stores the attribute information of the area where the article and the article owner exist, that is, the attribute information of the place. FIG. 9 is an explanatory diagram illustrating a specific example of field attribute information. The field attribute information includes a field ID, a corresponding reader ID, an attribute, a constituent object ID, and a related service, and is estimated and created by the field attribute estimation unit 12. The field attribute information may be registered in advance by the operator of the situation estimation apparatus 100. In that case, the field attribute estimation unit 12 is not necessary.

  The situation storage unit 53 is a part that stores the situation of the real world estimated by the situation estimation unit 13, and stores the time when the situation is estimated and the estimated situation. FIG. 11 is a diagram illustrating a specific example of the situation information stored in the situation storage unit 53. The situation information includes a time when the situation is estimated and an estimated situation. This situation information is estimated and created by the situation estimation unit 13.

  The inference rule storage unit 54 stores rules for inferring attributes of real-world situations and elements (articles, article holders, and areas in which articles / item holders exist) constituting the real world. The rules stored in the inference rule storage unit 54 are created and registered by the operator of the situation estimation apparatus 100. An example of the inference rule storage unit 54 is shown. FIG. 12 is an explanatory diagram showing a specific example of the inference rules stored in the inference rule storage unit 54.

  The inference rules are: "The article holder X and the carry-on item a are separated. AND The carry-on article a exists in the territory of the article holder X. → The article holder X puts the carry-on item a." AND carrying item a away AND carrying item a exists in addition to the territory of the item holder X → the item owner X dropped the item a. More detailed events between the goods holder and the goods (the actions of the goods holder) based on the situation where the goods (goods) are separated from each other) and the situation where the goods are placed (for example, the location of the goods) ). In addition, the above-mentioned “carrying item” refers to an item for which a carrier is set in the attribute information of the item (see FIG. 10).

  The situation / service correspondence storage 55 is a part that stores the situation between an article and an article owner and the correspondence between services to be provided for the situation. FIG. 13 is an explanatory diagram showing a specific example of information stored in the situation / service correspondence storage 55. The situation / service correspondence storage unit 55 stores the situation between the article and the article owner and the service corresponding to the situation in association with each other. For example, as a service corresponding to “the article owner dropped the article” The “lost article notification service” is stored, and the “burnable garbage service” is stored as a service corresponding to “the article holder has put the article into the trash box and non-burnable garbage has entered the trash box”. Information indicating these services is information input in advance by the operator of the situation estimation apparatus 100.

  The service storage unit 56 is a part that stores the contents of the service. FIG. 14 is an explanatory diagram illustrating an example of the service storage unit 56. The service storage unit 56 stores the service content corresponding to the service name, for example, stores the service content indicating that “the article has been dropped” on the display unit corresponding to the “lost article notification service”. . Also, in response to “burnable garbage service” described later, a trash box alarm is sounded, and “incorrect” is displayed on the trash box display section. "Is stored. Information indicating these services is information input in advance by the operator of the situation estimation apparatus 100.

  The communication unit 60 is a part that executes the service provided by the service providing unit 40 and communicates a message corresponding to the content of the service to the article holder. For example, the communication unit 60 notifies the article holder that the article has been dropped.

  The control unit 70 is a part that comprehensively controls the estimation unit 10 to the communication unit 60 described above.

  The operation of the situation estimation apparatus 100 configured as described above will be described. FIG. 15 is an operation flowchart showing the operation of the situation estimation apparatus 100.

  First, the wireless tag readers 201 and 202 detect the wireless tags 301 to 309 of the article and the article owner, store the tag ID in the wireless tag detection history storage unit 51, and create history information (S401). Next, the object attribute estimation unit 11 identifies an article carried by the article holder detected by the wireless tag readers 201 and 202 based on the history information stored in the wireless tag detection history storage unit 51 (S402). A detailed method for specifying an article (carrying article) carried by the article holder is as shown in FIG. 4, and will be specifically described with reference to FIG. 7 according to the method shown in FIG.

  Referring to FIG. 7, the tag reader 201 has a wireless tag 308, a wireless tag 301 attached to a wallet, and a wireless wireless device attached to a mobile phone at Yoshida-san at time 2004.3.12-17: 10: 40. The tag 302, the wireless tag 309 owned by Mr. Tanaka, the wireless tag 303 attached to the wallet, the wireless tag 304 attached to the mobile phone, and three jeans (wireless tags 305 to 307 attached) are simultaneously detected. . The wireless tags 301 and 302 were detected for the first time with Yoshida-san, and the wireless tags 303 and 304 and three jeans (305-307 affixed) were detected with Tanaka-san for the first time at 2004.3.12-17: 10: 40. In the processing flow of FIG. 4, R = 0.

In addition, the wireless tag reader 202 detects the wireless tag 308 owned by Mr. Yoshida, the wireless tag 301 attached to the wallet, and the wireless tag 302 attached to the mobile phone at time 2004.3.12-17: 15 : 40. Tanaka's wireless tag 309, wireless tag 303 attached to the wallet, and wireless tag 304 attached to the mobile phone are detected. It is detected at the same time. Here, Mr. Yoshida compared the wireless tag detected at time 2004.3.12-17: 10: 40 with the wireless tag detected at time 2004.3.12-17: 15: 40. Since the wireless tags 301 and 302, Mr. Tanaka, and the wireless tags 303 and 304 are simultaneously detected at both times, R = 1 in the processing flow of FIG.

  Here, if N = 1 in the processing flow of FIG. 4, it can be seen that Mr. Yoshida carries a wallet and a mobile phone, and Mr. Tanaka carries a wallet and a mobile phone. Then, the object attribute estimation unit 11 registers the name of the article holder carried in the carry column of the attribute information of the article stored in the attribute information storage unit 52 in association with the tag ID of the corresponding article (see FIG. 10). .

  Next, the field attribute estimation unit 12 specifies a field attribute based on the attribute information of the article (S403). The details are the same as the method shown in FIG. 5 described above. First, the operator took the sum of the wireless tag reader 201 (tag ID = B001) and the wireless tag reader 202 (tag ID = B002) as a place to focus on in advance. Suppose you specify something. The field attribute estimation unit 12 acquires the attribute information of the wireless tag ID detected at the time 2004.3.312-17: 24: 40 from the attribute information of the article stored in the attribute information storage unit 52.

  And the field attribute estimation part 12 calculates a common attribute degree (CAR) about each attribute from the attribute information (refer FIG. 10) of goods, and sets the threshold value of CAR to CAR> = 0.4. Then, since CAR (owner = Tanaka) = 5/7 and CAR (role = product) = 3/7 exceed the threshold, these two are set as common attributes. Further, the field attribute estimation unit 12 specifies that the field of interest has the attributes of “Tanaka no Wabari” and “product sales area” based on the attribute inference rules stored in advance.

  Then, the field attribute estimation unit 12 uses tag IDs “8003”, “8004”, “8005” based on the owner = Tanaka as an article existing in a field with “Tanaka no territory” which is one of the common attributes. ”,“ 8006 ”,“ 8007 ”are extracted and tag IDs“ 8005 ”,“ 8006 ”based on the role = product as items existing in the place of“ product sales floor ”which is another common attribute. , “8007” is extracted. The field attribute estimation unit 12 refers to these detected reader IDs, and since both are “B001”, the reader IDs of both fields are “B001” and the field IDs are “A001” and “A002”, respectively. The field attribute information is set and stored in the attribute information storage unit 52 (see FIG. 9).

  Subsequently, the situation estimation unit 13 estimates the situation in the real world (S404). First, the situation estimation unit 13 refers to the detection history of the wireless tag stored in the wireless tag detection history storage unit 51 and the attribute information of the article stored in the attribute information storage unit 52, so that “the user is separated from the article. The situation according to FIG. 6 is estimated. The situation estimation unit 13 refers to the wireless tag detection history storage unit 51, and uses the wireless tag ID acquired at time 2004.3.12-17: 24: 40 for items stored in the attribute information storage unit 52. Read attribute information. Based on the attribute information of the article, the situation estimation unit 13 recognizes that Mr. Tanaka carries a wallet and a mobile phone, and Mr. Yoshida carries a wallet and a mobile phone.

  The situation estimation unit 13 refers to the wireless tag detection history storage unit again after 1 minute, and reads the information of the wireless tag ID acquired at 2004.3.12-17: 25: 40. From this history information, the situation estimation unit 13 can recognize that Mr. Tanaka carries a mobile phone and Mr. Yoshida carries a mobile phone. The situation estimation unit 13 compares the wireless tag ID detected at 2004.3.12-17: 24: 40 with the wireless tag ID detected at 2004.3.12-17: 25: 40, It can be seen that the wireless tag IDs = 8001, 8003, 8005, 8006, 8007 were not detected.

  Furthermore, the situation estimation unit 13 refers to the attribute information of the article in the attribute information storage unit 52 and confirms that the carrier with the wireless tag ID = 8001 is Mr. Yoshida and the owner with the wireless tag ID = 8003 is Mr. Tanaka. From the recognition, it is estimated that “Mr. Yoshida and the wallet have separated” and “Mr. Tanaka and the wallet have separated”. Furthermore, the situation estimation unit 13 stores these situations in the situation storage unit 53 (see FIG. 11).

  Next, the situation estimation unit 13 refers to the inference rule storage unit 54 (see FIG. 12) and acquires a new situation inferred from the current situation. Specifically, the situation inference rules include rule 1: “the article holder X and the carry-on item a are separated. AND the carry-on item a exists in the territory of the article holder X. → the item holder X sets the carry-on item a. Rule “Right” and Rule 2: “The article holder X and the carry-in item a are separated AND AND The carry-on item a exists in addition to the territory of the article holder X → The article holder X dropped the carry-in item a” Rules are stored. The situation estimation unit 13 indicates that “Mr. Tanaka's wallet has separated”, “Mr. Yoshida has separated her wallet”, “Mr. Tanaka's wallet is on Tanaka's territory”, “Mr. Yoshida's wallet is Tanaka Mr. Tanaka applied rule 1 to Mr. Yoshida and rule 2 applied to Mr. Yoshida, and estimated the situation that “Mr. Tanaka dropped the wallet” and “Mr. Yoshida dropped the wallet,” respectively. can do.

  Then, the situation estimation unit 13 transmits these estimated situations to the service providing unit 40. The service providing unit 40 refers to the situation / service correspondence storage unit 55 to determine and provide a service corresponding to the received situation. From this situation / service relation and the situation that “Mr. Yoshida dropped the wallet”, Mr. Yoshida Provide lost property service. In addition, the service providing unit 40 notifies the communication unit 60 of the lost item service, and the communication unit 60 transmits a message indicating that the item has been lost to the communication terminal or the wireless tag 308 owned by the article holder.

  As another embodiment, when garbage that does not burn is put in the trash bin, an alarm can be sounded by an alarm provided in the trash bin. Specifically, a wireless tag is first attached to an article that becomes garbage after use, such as an empty can after drinking. Further, a tag reader is set so that the contents of the trash box, which is the field attribute information of the attribute information storage unit 52 of the situation estimation apparatus 100, is set as the detection range. "In advance. In addition, as attribute information of an empty can which is attribute information of an article, attribute information indicating that it is an empty can or an incombustible material is registered.

  When the situation estimation unit 13 determines that the empty can has been removed from the owner of the article and further determines that the empty can has entered the trash box, the garbage that should not be put in due to the relationship between the attribute of the trash can field and the attribute of the empty can The service providing unit 40 takes out the burning garbage service from the situation / service correspondence storage unit 55, notifies the display unit or notification unit of the trash box, and displays the display unit or notification provided in the trash box. The section displays or informs that the non-combustible waste has entered the article holder who has discarded the waste. Moreover, the communication part 60 which operate | moves by the instruction | indication from the service provision part 40 can also notify a message with respect to the communication terminal (or wireless tag 308,309) which an article holder has.

  Thereby, the situation estimation apparatus 100 according to the present embodiment automatically determines from the relationship between the field attribute and the article attribute that the empty can, which is an incombustible material of the trash box for the combustion material, has been accidentally discarded. It is possible to notify the owner of the article (thing that throws away the garbage) that the determination has been made.

  The effect of the situation estimation apparatus 100 of this embodiment is demonstrated. If the tag reader 202 can uniquely identify the article holder but cannot uniquely identify the article to be held by the article holder, that is, if it can be determined that the article has moved away from the article holder, the article holder It is possible to accurately determine the condition of the article by estimating the situation in which the article has been released based on the field attribute of the area where the article exists, and the article owner has lost the article. Or just put it.

  Also, determine the service (for example, burning garbage service or lost item service) according to the condition of the goods and provide the service (notify that the item has been lost, or notify that the non-burnable garbage is in the burning garbage bin etc. By doing so, the article owner can know the act on the article (or whether the act was justified). For example, the article holder who has received the service can know that the article (carrying goods) has been dropped, and can know that the garbage has been thrown away by mistake. The provision of the service includes directly transmitting a message corresponding to the service to the article holder, and displaying a message corresponding to the service where the article owner can see.

It is a conceptual diagram explaining the condition which the condition estimation part 100 handles. It is a conceptual diagram which shows a mode when the shopper X and the shopkeeper Y move to the detection range of the tag reader 202 in the situation which the situation estimation apparatus 100 handles. 2 is a block configuration diagram of the situation estimation apparatus 100. FIG. It is a flowchart which shows the process which the object attribute estimation part 11 estimates the carrier who is the attribute of an article | item. It is a processing flow figure which specifies a field attribute. It is an operation | movement flowchart when estimating a condition. It is explanatory drawing of the log | history information stored in the wireless tag detection log | history storage part 51. FIG. It is a figure which shows the specific example of the attribute information of an article owner. It is explanatory drawing explaining the specific example of field attribute information. It is explanatory drawing explaining the specific example of the attribute information of articles | goods. It is a figure which shows the specific example of the status information which the status storage part 53 memorize | stores. It is explanatory drawing which shows the specific example of the inference rule which the inference rule storage part 54 stores. 6 is an explanatory diagram illustrating a specific example of information stored in a situation / service correspondence storage unit 55. FIG. 6 is an explanatory diagram illustrating a specific example of a service storage unit 56. FIG. FIG. 6 is an operation flow diagram showing the operation of the situation estimation apparatus 100.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Estimation part, 11 ... Object attribute estimation part, 12 ... Field attribute estimation part, 13 ... Situation estimation part, 20 ... Operation part, 30 ... Display part, 40 ... Service providing unit 50... Storage unit 51... Wireless tag detection history storage unit 52... Attribute information storage unit 53. ... Situation / service correspondence storage unit, 56 ... Service storage unit, 100 ... Situation estimation device, 201 ... Tag reader, 202 ... Tag reader, 301, 302, 303, 304, 305, 306, 307, 308, 309... Wireless tags.

Claims (3)

A plurality of reader means for uniquely identifying an article holder and an article existing in a predetermined detection range;
Field attribute deriving means for deriving a field attribute determined based on the attribute of the article;
Attribute information storage means for holding attribute information indicating a correspondence relationship between an article holder and an article that the article holder has as a carry-on item;
The first reader means, which is one of the plurality of reader means, uniquely identifies an article owner and an article registered in the attribute information storage means as a carry-on article of the article owner, and then When the second reader means whose detection range is different from the first reader means can uniquely identify the article holder, and the article owner based on the attribute information storage means If the article corresponding to the item cannot be uniquely specified, the field attribute deriving unit derives a field attribute that is a detection range by the first reader unit, and the second attribute is based on the derived field attribute. The situation estimation means for estimating the situation of the article that could not be uniquely identified by the reader means,
A situation estimation apparatus comprising: The situation estimation apparatus according to claim 1, further comprising: a service determination unit that determines a service according to a situation estimated by the situation estimation unit; and a service provision unit that provides the service determined by the service determination unit. A situation estimation method in a situation estimation apparatus having a plurality of reader means for uniquely identifying an article holder and an article existing in a predetermined detection range,
A first identification step in which a first reader means that is one of the plurality of reader means uniquely identifies an article holder and an article registered as a carry-on article of the article owner;
A second identification step in which the second reader means having a detection range different from the first reader means uniquely identifies the article owner and the article recognized as the carry-on article of the article owner; ,
In the second identification step, when the article holder can be uniquely specified, and when the article that is the carry-on item of the article holder cannot be uniquely specified, the first reader means A situation estimation step of estimating a situation of an article that the second reader means could not uniquely identify based on a field attribute that is a detection range;
A situation estimation method comprising:

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