WO2016158105A1 - 情報処理装置、情報処理方法、プログラム及び情報処理システム - Google Patents
情報処理装置、情報処理方法、プログラム及び情報処理システム Download PDFInfo
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- WO2016158105A1 WO2016158105A1 PCT/JP2016/055516 JP2016055516W WO2016158105A1 WO 2016158105 A1 WO2016158105 A1 WO 2016158105A1 JP 2016055516 W JP2016055516 W JP 2016055516W WO 2016158105 A1 WO2016158105 A1 WO 2016158105A1
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- information processing
- communication terminal
- processing apparatus
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- rssi
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
- G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
- G01S11/06—Systems for determining distance or velocity not using reflection or reradiation using radio waves using intensity measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/59—Responders; Transponders
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/14—Determining absolute distances from a plurality of spaced points of known location
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/35—Services specially adapted for particular environments, situations or purposes for the management of goods or merchandise
Definitions
- the present disclosure relates to an information processing apparatus, an information processing method, a program, and an information processing system.
- Patent Document 1 discloses a technique for estimating the position of a terminal that has received the radio wave and the distance to the terminal based on the intensity level of the radio wave received from a terminal whose location is known. .
- the received radio waves contain a lot of noise. That is, even if the distance between the terminal that has transmitted the radio wave and the terminal that has received the radio wave is constant, the measured radio wave intensity varies in a short time due to noise. Therefore, when the existing technology as described above is used, the processing may be erroneously performed due to the influence of the noise.
- This disclosure proposes a new and improved information processing apparatus, information processing method, program, and information processing system capable of appropriately performing processing based on radio wave intensity.
- an acquisition unit that acquires a radio wave measurement result, and a measurement result indicating an intensity included in a range from the top 10% to the top 30% among the plurality of measurement results acquired by the acquisition unit are extracted.
- An information processing apparatus includes an extraction unit and a processing unit that performs a predetermined process using the measurement result extracted by the extraction unit.
- acquiring a radio wave measurement result extracting a measurement result indicating an intensity included in a range of the top 10% to the top 30% among the plurality of obtained measurement results;
- an information processing method executed in the information processing apparatus including performing predetermined processing using the extracted measurement result.
- the computer indicates an intensity included in a range from the top 10% to the top 30% of the plurality of measurement results acquired by the acquisition unit that acquires the radio wave measurement results and the acquisition unit.
- a program for functioning as an extraction unit that extracts a measurement result and a processing unit that performs a predetermined process using the measurement result extracted by the extraction unit is provided.
- an acquisition unit that acquires a radio wave measurement result, and a measurement result indicating an intensity included in a range of the top 10% to the top 30% among the plurality of measurement results acquired by the acquisition unit.
- An information processing system includes an extraction unit that performs extraction and a processing unit that performs predetermined processing using the measurement result extracted by the extraction unit.
- FIG. 4 is a sequence diagram illustrating a first operation example of an information processing system according to an embodiment of the present disclosure.
- FIG. 12 is a sequence diagram illustrating a second operation example of the information processing system according to an embodiment of the present disclosure.
- FIG. 11 is a sequence diagram illustrating a third operation example of the information processing system according to an embodiment of the present disclosure.
- FIG. It is a figure which shows the structure which concerns on the 1st authentication process of the communication terminal in a 3rd operation example. It is a flowchart which shows the operation
- FIG. 11 is a sequence diagram illustrating a fourth operation example of the information processing system according to an embodiment of the present disclosure.
- FIG. It is a figure showing the composition of the modification of the information processing system concerning one embodiment of this indication.
- 11 is a sequence diagram illustrating an operation example based on a configuration of a modification example of the information processing system according to an embodiment of the present disclosure.
- FIG. It is a block diagram showing hardware constitutions of an information processor concerning one embodiment of this indication.
- a plurality of constituent elements having substantially the same functional configuration may be distinguished by attaching different alphabets or numbers after the same reference numeral.
- it is not necessary to particularly distinguish each of a plurality of constituent elements having substantially the same functional configuration only the same reference numerals are given.
- FIG. 1 is a diagram illustrating an outline of a configuration in an information processing system 1 according to an embodiment of the present disclosure.
- the information processing system 1 according to the present embodiment is applicable to, for example, a book settlement system in a bookstore, but the present technology is not limited to such an example.
- the information processing system 1 can be applied to other fields such as settlement in retail stores such as shopping centers and convenience stores, and rental processing in rental shops and libraries.
- the information processing system 1 which concerns on this embodiment demonstrates the example applied to the payment system of a bookstore.
- the communication terminal 20 may be, for example, a mobile terminal such as a mobile phone, a smartphone, or a tablet, or a wearable terminal such as a smart watch or a smart glass. The function of the communication terminal 20 will be described later.
- the person P0 goes to the bookshelf 4 to pick up the book 40 to be purchased.
- An article tag 41 is attached to the book 40.
- the article tag 41 has information on the book 40, and transmits and receives the information in communication with other devices such as the communication terminal 20.
- the information may be, for example, information such as an article ID for identifying the book 40, position information of the book 40, arrival date of the book 40, price, book content, and the like.
- the article tag 41 is a tag capable of wireless communication such as an RFID (Radio Frequency Identifier) tag or a Bluetooth (registered trademark) tag. These tags may be passive tags that operate using radio waves transmitted from the communication terminal 20 or the gate beacon 31 as an energy source, or active tags that operate with their own power by incorporating a battery.
- RFID Radio Frequency Identifier
- Bluetooth registered trademark
- the person P0 who has the book 40 then goes to the gate 30 to purchase the book 40.
- the gate 30 has a gate beacon 31.
- the gate beacon 31 communicates with the communication terminal 20 and the article tag 41, for example, and performs processing based on the content received in the communication.
- communication is performed among the communication terminal 20, the gate beacon 31, the article tag 41, and the information processing apparatus 10 of the present disclosure, and the book 40 with the article tag 41 attached thereto.
- the settlement process related to is executed.
- the communication performed in the information processing system 1 according to the present embodiment includes, for example, wireless communication using IEEE802.5.1 such as BLE (Bluetooth Low Energy) or wireless LAN using IEEE802.11 ( Wireless communication such as (Local Area Network).
- IEEE802.5.1 such as BLE (Bluetooth Low Energy)
- IEEE802.11 Wireless communication such as (Local Area Network).
- FIG. 2 is a diagram illustrating a configuration of the information processing system 1 according to an embodiment of the present disclosure.
- the information processing system 1 includes an information processing apparatus 10, a communication terminal 20, and gates 30A and 30B.
- the gates 30A and 30B have gate beacons 31A and 31B.
- the communication terminal 20 is a communication terminal such as a mobile terminal such as a mobile phone, a smartphone, and a tablet, and a wearable terminal such as a smart watch and a smart glass.
- the communication terminal 20 includes a communication unit that performs communication with the information processing apparatus 10 and the like, a control unit that controls the communication terminal 20, an input unit for a user to input information to the communication terminal 20, and outputs information to the user. May have an output section or the like.
- the function as the input unit may be realized by, for example, a touch panel or a button.
- the function as the output unit may be realized by, for example, a CRT (Cathode Ray Tube) display device, an LCD (Liquid Crystal Display) device, or an OLED (Organic Light Emitting Diode) device. Further, the functions as the input unit and the output unit may be realized by a voice input / output device such as a microphone or a speaker.
- a voice input / output device such as a microphone or a speaker.
- the communication terminal 20 communicates with the information processing apparatus 10, the gate beacon 31, and the article tag 41, and performs processing based on information obtained by communication. For example, the communication terminal 20 may transmit the information acquired from the gate beacon 31 and the article tag 41 and the RSSI of radio waves in communication to the information processing apparatus 10. The RSSI may be measured by the communication terminal 20 in communication with the gate beacon 31 and the article tag 41.
- the communication terminal 20 may be provided with a security chip that manages the balance of electronic money used for payment for the purchase of goods. Then, the communication terminal 20 may update the balance recorded in the security chip when the information processing apparatus 10 makes a payment for the book 40.
- the communication terminal 20 is described as including a security chip.
- the communication terminal 20 may authenticate the book 40 based on RSSI in communication with the article tag 41 attached to the book 40.
- the authentication of the book 40 is, for example, associating the book 40 with the communication terminal 20. Specifically, the authentication indicates a state in which the book 40 is put in a cart in the application in the shopping application installed in the communication terminal 20. Thereby, the information processing apparatus 10 can perform the payment process regarding the book 40 with respect to the communication terminal 20 that has authenticated the book 40.
- the authentication of the book 40 is specifically described in “3.3.1. Configuration and operation related to first authentication process” and “3.3.3.2. Configuration and operation related to second authentication process”. explain.
- the gate 30 may be a gate installed near an exit of a store using the information processing system 1 or near a register.
- the gate 30 may be, for example, a flapper gate provided with a flapper that is opened when a person is allowed to pass by blocking passage of a person, or a door gate provided with a door. Good.
- a flapper or a door provided between the gates 30A and 30B may be opened.
- the gate 30 has a gate beacon 31.
- the gate beacon 31 includes a communication unit that communicates with the information processing apparatus 10, a control unit that controls the gate 30 and the gate beacon 31, an output unit that outputs information to a user who wants to pass through the gate 30, and the like. You may have.
- the gate beacon 31 communicates with the information processing apparatus 10, the communication terminal 20, and the article tag 41, and performs processing based on information obtained by communication. For example, the gate beacon 31 may transmit information acquired from the communication terminal 20 and the article tag 41 and RSSI of radio waves in communication to the information processing apparatus 10. The RSSI may be measured by the gate beacon 31 in communication with the communication terminal 20 and the article tag 41.
- the information processing apparatus 10 performs predetermined processing based on the RSSI of radio waves in communication between the gate beacon 31A and the communication terminal 20, but the present technology is not limited to such an example.
- the information processing apparatus 10 may perform a predetermined process based on two RSSIs of a radio wave in communication between the gate beacon 31A and the communication terminal 20 and a radio wave in communication between the gate beacon 31B and the communication terminal 20. Thereby, for example, when the communication terminal 20 passes between the gates 30A and 30B, not when the communication terminal 20 approaches the gate 30A or 30B, the settlement process can be performed.
- the gate 30 may be a gate not provided with a device for blocking the passage of a person. Moreover, the gate 30 does not need to have an actual housing
- the book 40 is an example of an article sold in a store that uses the information processing apparatus 10.
- the above-mentioned articles are not limited to books, magazines, newspapers, etc., which are placed in bookstores, but also daily commodities, grocery products, miscellaneous goods, clothes, furniture, electrical appliances sold at retail stores such as shopping centers and convenience stores, It is not particularly limited as long as it is a merchandise displayed at a store, such as a luxury product or an entertainment product.
- it is not limited to products, but may be, for example, books and videos rented from rental shops and libraries, DVD (Digital Versatile Disc) software, and the like.
- an article tag 41 is attached to the book 40 displayed in the store.
- the article tag 41 has information on the book 40 and communicates the information with other devices such as the communication terminal 20.
- the information may include, for example, information such as an article ID for identifying the book 40, position information of the book 40, arrival date of the book 40, price, and contents of the book.
- the article tag 41 communicates with the communication terminal 20 and the gate beacon 31 and transmits information included in the article tag 41. For example, when the article tag 41 approaches the communication terminal 20 or the gate beacon 31, information related to the book 40 such as an article ID is transmitted to the communication terminal 20 or the gate beacon 31.
- the article tag 41 may communicate with the adjacent communication terminal 20 and transmit information related to the book 40 such as an article ID.
- the article tag 41 may be invalidated by the information processing apparatus 10 after the book 40 with the article tag 41 is settled by the information processing apparatus 10. For example, an instruction to invalidate the article tag 41 by the information processing apparatus 10 via the communication terminal 20 or the gate beacon 31 may be written.
- the article tag 41 is attached to the book 40 for the settlement process of the book 40 in the present embodiment, but the present technology is not limited to such an example.
- the article tag 41 may be attached to the book 40 or the like in order to manage the inventory status of the books displayed on the bookshelf.
- the article tag 41 determines whether or not the book 40 to which the article tag 41 is attached is stored in the bookshelf through communication with a beacon (not shown) installed on a bookcase, a ceiling or a wall of a store, etc. May be used to determine
- the information processing apparatus 10 performs a predetermined process based on information regarding the communication terminal 20, one of the beacons 31A and 31B, and the article tag 41. Specifically, the information processing apparatus 10 acquires information for identifying the communication terminal 20, the gate beacons 31A and 31B, and the article tag 41. In addition, the information processing apparatus 10 acquires information related to the strength of communication radio waves measured at the communication terminal 20.
- the strength of radio waves for communication performed in the present embodiment may be, for example, RSSI (Received Signal Strength Indication: received signal strength).
- RSSI Receiveived Signal Strength Indication: received signal strength
- RSSI will be described as an example of radio wave intensity.
- the information processing apparatus 10 may determine the communication distance between the communication terminal 20 and the gate beacon 31 and the communication distance between the communication terminal 20 and the article tag 41 based on the above information. Further, the information processing apparatus 10 may perform a process related to the book 40 to which the article tag 41 is attached based on the determination result.
- the determination result is, for example, whether the communication distance between the communication terminal 20 and the gate beacon 31 is equal to or less than the first distance, and whether the communication distance between the communication terminal 20 and the article tag 41 is equal to or less than the second distance. It may be.
- the information processing apparatus 10 performs processing related to the book 40 when the communication distance between the communication terminal 20 and the article tag 41 and the communication distance between the communication terminal 20 and the gate beacon 31A or 31B are equal to or less than a predetermined distance. May be.
- the information processing apparatus 10 is configured such that the communication terminal 20 is close to the book 40 and the communication terminal 20 is within the predetermined range R1A of the gate beacon 31A or the predetermined range of the gate beacon 31B.
- the range R1B When it is determined that it is included in the range R1B, a process related to the book 40 to which the article tag 41 is attached may be performed.
- the process related to the book 40 may be, for example, a settlement process for purchasing the book 40.
- the information processing apparatus 10 may make a payment for the book 40 and request the communication terminal 20 to pay for the payment.
- the information processing apparatus In order to realize proper operation of the information processing system 1, it is required to correctly determine each communication distance. For example, the information processing apparatus is required to reliably determine that the communication distance between the communication terminal 20 and the gate beacon 31A and the communication distance between the article tag 41 and the gate beacon 31A are within a predetermined range.
- the RSSI of the radio wave is used. That is, the communication distance is estimated according to the measured RSSI strength.
- the received radio waves contain a lot of noise. That is, even if the distance between the terminal that transmitted the radio wave and the terminal that received the radio wave is constant, the measured RSSI varies in a short time due to noise. Therefore, when determining the distance or the like according to the measured RSSI, the information processing apparatus may be erroneously determined due to the influence of the noise.
- an information processing apparatus 10 that can extract RSSI indicating a value with low variation from the acquired RSSI and perform predetermined processing using the extracted RSSI.
- the information processing apparatus 10 according to the present disclosure it is possible to reliably perform processing based on RSSI.
- the configuration and operation of the information processing apparatus 10 according to the present disclosure will be specifically described.
- FIG. 3 is a block diagram illustrating a configuration of the information processing apparatus 10 according to an embodiment of the present disclosure.
- the information processing apparatus 10 according to the present embodiment includes a communication unit 100, a storage unit 110, an extraction unit 120, and a processing unit 130.
- the communication unit 100 is an interface for transmitting and receiving information to and from the communication terminal 20 and the gate beacon 31.
- the communication unit 100 performs wireless communication with the communication terminal 20 and the gate beacon 31 and acquires a measurement result including the RSSI of the radio wave measured by the communication terminal 20 and the gate beacon 31.
- the communication unit 100 may acquire the measurement result of the radio wave used for communication between the communication terminal 20 and the gate beacon 31 or the article tag 41.
- the communication unit 100 may communicate with the gate beacon 31 by wire.
- the radio wave measurement result acquired by the communication unit 100 is output to the extraction unit 120. Further, the measurement result may be stored in the storage unit 110. Further, the communication unit 100 may transmit the processing result obtained from the processing unit 130 to the communication terminal 20, the gate beacon 31, and the like.
- the communication unit 100 is an example of an acquisition unit.
- the storage unit 110 stores information obtained from the communication unit 100, the extraction unit 120, and the processing unit 130.
- the storage unit 110 may store radio wave measurement results acquired by the communication unit 100 in time series.
- the storage unit 110 may store the measurement data rearranged by the extraction unit 120.
- the storage unit 110 may store the content processed by the processing unit 130.
- the storage unit 110 may output the stored measurement data to the extraction unit 120.
- the extraction unit 120 extracts a measurement result indicating RSSI within a predetermined range from the measurement results output from the communication unit 100 or the storage unit 110.
- the RSSI within the predetermined range may be, for example, RSSI included in the upper 10% to upper 30% range.
- the extraction unit 120 rearranges the RSSIs acquired within a predetermined time in descending order, and extracts RSSIs included in the upper 10% to upper 30% of the rearranged RSSIs. Note that the extraction unit 120 can also extract RSSIs in the top 10% and the top 30%.
- the RSSI included in the above range is an RSSI with small fluctuation due to noise, as will be described below.
- the processing unit 130 which will be described later, can perform highly accurate processing by using RSSI with small fluctuation due to noise.
- the basis of the extraction range will be specifically described in “2.2. RSSI extraction range”.
- the extraction unit 120 outputs the extracted measurement result to the processing unit 130.
- the measurement results rearranged by the extraction unit 120 may be stored in the storage unit 110.
- the processing unit 130 executes a predetermined process using information related to the measurement result output from the extraction unit 120 and the storage unit 110. For example, the processing unit 130 may execute a predetermined process using the measurement result extracted by the extraction unit 120. In addition, the processing unit 130 may execute a predetermined process using one or a plurality of measurement results extracted by the extraction unit 120 and stored in the storage unit 110.
- the predetermined processing may be, for example, processing for determining a communication distance between one communication device and a measurement position of a radio wave transmitted from the communication device. More specifically, the processing unit 130 may perform processing for determining the communication distance between the communication device and the measurement position based on the measurement result output to the processing unit 130. Generally, RSSI is considered to decrease as the communication distance increases. Therefore, the processing unit 130 can determine the communication distance based on the RSSI indicated by the measurement result output to the processing unit 130.
- the processing unit 130 may perform processing related to the book 40 after the above determination processing, for example. For example, a process for paying the book 40 or a process for authenticating the book 40 may be used.
- the configuration of the information processing apparatus 10 according to the present embodiment has been described above.
- the configuration of the information processing apparatus 10 described above may be included in the communication terminal 20 and the gate beacon 31, for example.
- the control unit included in the communication terminal 20 and the gate beacon 31 may have the functions of the extraction unit 120 and the processing unit 130.
- FIG. 4 is a graph G1 showing an example of the time change of the RSSI of the acquired radio wave.
- Graph G1 shows the time change of RSSI acquisition data G10.
- the horizontal axis indicates time
- the vertical axis indicates RSSI.
- the interval between the measurement times of the acquired radio waves is about 0.1 to 0.3 seconds.
- the RSSI indicated by the acquired data G10 repeatedly vibrates in the range of ⁇ 64 to ⁇ 90 dBm in a short time, suggesting that the noise contained in the radio wave is large.
- the RSSI range is converted into a distance, the distance is in a range of about 0.5 m to 5 m. Therefore, when the acquired RSSI is used for distance determination as it is, for example, it is difficult to accurately determine a distance of several meters.
- the extraction unit 120 extracts a measurement result indicating the RSSI within the predetermined range described above from the acquired radio wave measurement results.
- a description will be given with reference to FIGS.
- FIG. 5 is an example of a table T1 that stores values obtained by rearranging the RSSIs of a plurality of acquired radio waves for each time.
- the table T1 includes a measurement time field T10, an RSSI field T11, and a sort field T12.
- the measurement time field T10 stores the time when the RSSI was actually measured.
- the RSSI field T11 stores the RSSI at the time indicated in the measurement time field T10. For example, the RSSI value at the time of “16:24:25” 241 which is the latest RSSI measurement time is ⁇ 70 dBm, as indicated by the RSSI value T101.
- values obtained by sorting a plurality of RSSIs in numerical order in a period including a certain radio wave measurement time indicated by the measurement field T10 are stored for each rank. For example, referring to FIG. 5, RSSI measured in the past 20 times from a certain radio wave measurement time is sorted in numerical order and stored for each rank. More specifically, RSSI measured in the past 20 times from the above time is stored in the order of 1, 2, 3,.
- RSSI for the past 20 times (from “16: 24: 23: 061”) from “16:24:25” 241 which is the latest radio wave measurement time is stored in the bottom row of the sort field T12.
- the RSSI corresponding to the past 20 times is shown in a range shaded by the group T102.
- the extraction unit 120 rearranges the RSSIs included in the group T102 in numerical order, and stores the rearranged RSSIs in the lowest row T103 for each rank.
- RSSI groups having a maximum value of ⁇ 70 dBm and a minimum value of ⁇ 83 dBm are rearranged in numerical order and stored in the bottom row T103.
- RSSI measured in the past 20 times from the time of another measurement time is rearranged and stored in a row corresponding to the other measurement time in the sort field T12.
- the extraction unit 120 may rearrange a plurality of RSSIs in a period including a certain radio wave measurement time in numerical order, and store the data obtained by the rearrangement in association with the radio wave measurement time. At this time, for example, the extraction unit 120 may store the data in the storage unit 110.
- the extraction unit 120 may acquire a plurality of measurement results used for the rearrangement process from the communication unit 100 or the storage unit 110.
- FIG. 6 is a graph G2 showing an example of a standard deviation calculated from a plurality of RSSI distributions stored in the same order.
- the numbers described on the horizontal axis of the graph G2 indicate the rank determined by the rearrangement process, and the vertical axis indicates the standard deviation (SD: Standard Deviation) for each rank.
- SD Standard Deviation
- the plurality of RSSIs stored in the same order are acquired from the measurement results of radio waves transmitted from communication devices installed at a certain distance.
- the standard deviation group G20 in the ranks determined by the rearrangement from the 2nd to the 6th shows lower values than other standard deviations other than the 1st.
- the second standard deviation G21 indicates the minimum value.
- the RSSI stored in the rank indicating a relatively low value of the standard deviation such as the standard deviation included in the standard deviation group G20 has a distribution with low variation in time series, the RSSI is stored in the rank. It is considered that the fluctuation of RSSI is small. That is, it is possible to remove the influence of fluctuation due to noise included in the original radio wave by using RSSI stored in the order of low standard deviation.
- the extraction unit 120 may extract RSSI included in the second to sixth positions, that is, in the upper 10% to upper 30% range. Thereby, the influence of the dispersion
- FIG. 7 is an example of a table T2 that stores values obtained by rearranging RSSIs of a plurality of acquired radio waves for each time.
- the table T2 has the same configuration as the table T1 shown in FIG.
- the measurement time field T20 is the same as the measurement time field T10
- the RSSI field T21 is the same as the RSSI field T11.
- the extraction unit 120 extracts the RSSI included in the 2nd to 6th field T22.
- the extraction unit 120 may extract the RSSI stored in the second-ranked field T23 among the sorted RSSIs. Specifically, as illustrated in FIG. 7, the extraction unit 120 rearranges a plurality of RSSIs (20 in FIG. 7) in a period including each measurement time, and extracts the RSSI stored in the second place, The extracted RSSI may be output as the RSSI at the measurement time.
- FIG. 8 is a graph G3 illustrating an example of the RSSI of the acquired radio wave and the time change of the RSSI extracted by the information processing apparatus according to an embodiment of the present disclosure.
- the graph G3 shows the time change of the RSSI acquisition data G30 and the RSSI extraction data G31 extracted by the extraction unit 120.
- the extracted data G31 is data indicating RSSI stored in the second place among the plurality of RSSIs.
- the horizontal axis indicates time
- the vertical axis indicates RSSI.
- the acquired data G30 is the same as the acquired data G10 shown in FIG.
- the RSSI indicated by the acquisition data G30 oscillates greatly in a short time
- the RSSI indicated by the extraction data G31 shows a stable value compared to the acquisition data G30. Can be confirmed. That is, FIG. 8 shows that it is possible to remove the influence of fluctuation due to noise included in the original radio wave by using the RSSI values stored in the order of low standard deviation.
- the processing unit 130 can perform processing with higher accuracy by using RSSI with small fluctuation due to noise extracted by the extraction unit 120.
- the number of measurement values to be rearranged is 20 times from the measurement time to the past, but the present technology is not limited to this example.
- the period to be rearranged such as the past 50 times or 100 times, can be freely set according to the application target.
- the RSSI extraction range by the extraction unit 120 described above is appropriate even in an example in which the number of measurement values to be rearranged is 50 times or 100 times.
- FIG. 9 is a graph G4 showing an example of standard deviation calculated from a plurality of RSSIs stored for each rank.
- the numbers described on the horizontal axis of the graph G4 indicate the rank determined by the rearrangement, and in the example shown in FIG. That is, in FIG. 9, RSSI measured in the past 50 times from a certain radio wave measurement time is sorted in numerical order, and the standard deviation obtained from the RSSI distribution stored for each rank is shown for each rank. Yes.
- the standard deviation group G40 from the fifth place to the 15th place shows a lower value than the other standard deviations.
- the standard deviation G41 at the eleventh place shows the minimum value. That is, from the standard deviation shown in FIG. 9, for example, it can be said that it is appropriate for the extraction unit 120 to set the extraction range in the upper 10% to upper 30% as in the example shown in FIG.
- FIG. 10 is a graph G5 showing an example of the RSSI of the acquired radio wave and the time change of the RSSI extracted by the information processing apparatus according to an embodiment of the present disclosure.
- the graph G5 shows the time change of the RSSI acquisition data G50 and the RSSI extraction data G51 extracted by the extraction unit 120.
- the extracted data G51 is data indicating RSSI stored in the 11th place among the plurality of RSSIs.
- the acquired data G50 is the same as the acquired data G10 shown in FIG.
- the extracted data G51 shows a stable value compared to the acquired data G50. Further, the extracted data G51 shows a more stable value even when compared with the extracted data G31 in the graph G3 shown in FIG. This is considered to be because the RSSI parameter increases in the period to be rearranged and the standard deviation in the rank (11th) corresponding to the extracted data G51 shows a lower value. .
- FIG. 11 is a graph G6 showing an example of a standard deviation calculated from a plurality of RSSIs stored for each rank.
- the numbers written on the horizontal axis of the graph G6 indicate the order determined by the rearrangement, and in the example shown in FIG. That is, in FIG. 11, RSSI measured in the past 100 times from a certain radio wave measurement time is sorted in numerical order, and the standard deviation obtained from the RSSI distribution stored for each rank is shown for each rank. Yes.
- the standard deviation group G60 in the 10th to 30th positions shows a lower value than the other standard deviations.
- the standard deviation G61 in the 20th place represents the minimum value. Therefore, from the standard deviation shown in FIG. 11, it can be said that, for example, the extraction unit 120, as in the example shown in FIG.
- FIG. 12 is a graph G7 illustrating an example of the RSSI of the acquired radio wave and the time change of the RSSI extracted by the information processing apparatus according to an embodiment of the present disclosure.
- the graph G7 shows the time change of the RSSI acquisition data G70 and the RSSI extraction data G71 extracted by the extraction unit 120.
- the extracted data G71 is data indicating RSSI stored in the 20th place among the plurality of RSSIs.
- the acquisition data G70 is the same as the acquisition data G10 shown in FIG.
- the extracted data G71 shows a stable value compared to the acquired data G70. Further, the extracted data G71 shows a more stable value compared with the extracted data G31 in the graph G3 shown in FIG. 8 and the extracted data G51 in the graph G5 shown in FIG. This is considered to be based on the fact that the RSSI parameter further increases in the period of the rearrangement target, and that the standard deviation in the rank (20th) corresponding to the extracted data G71 shows a lower value. It is done.
- the extraction unit 120 extracts noise measurement results indicating RSSI included in the upper 10% to upper 30% range, thereby reducing noise. It is possible to extract an RSSI value with a small fluctuation due to.
- the extraction unit 120 extracts RSSIs included in the upper 10% to upper 30% of the plurality of RSSIs acquired by the communication unit 100. If the extraction range of the above is the above range, the RSSI to be extracted is not particularly limited.
- the extraction unit 120 may extract RSSI included in the upper 15% to upper 25% of the plurality of RSSIs acquired by the communication unit 100.
- the extraction unit 120 may also extract RSSIs in the top 15% and the top 25%.
- the RSSI in the second place (top 10%) has the lowest standard deviation. Therefore, in the case of 20 times, it is out of the range of the top 15% to the top 25%.
- the average value of standard deviations in the top 15% to top 25% (third to fifth) (1.93 in the case of FIG. 6) is the top 10%.
- the value is lower than the average value of standard deviations in the upper 30% (2nd to 6th) (1.99 in the case of FIG. 6).
- the degree of variation is larger than extracting the predetermined one RSSI included in the upper 10% to upper 30% range. It is possible to acquire stable RSSI. Therefore, by extracting RSSI included in the range of the upper 15% to the upper 25% regardless of the number of measurement values to be rearranged, it is possible to acquire RSSI with a stable degree of variation.
- the extraction unit 120 rearranges the plurality of RSSIs acquired by the communication unit 100, stores them in the storage unit 110 for each rank, and determines the RSSI to be extracted based on the distribution of the plurality of RSSIs stored for each rank. May be. Further, the extraction unit 120 calculates a standard deviation from a plurality of RSSI distributions stored for each rank, and the RSSI in the rank in which the standard deviation is the lowest or the RSSI in the rank in which the standard deviation indicates a value lower than a predetermined reference. May be extracted. Thereby, it is possible to extract RSSI with lower variation. Note that the number of samples necessary for calculating the standard deviation is not particularly limited.
- the number of samples may be the number of measurement values to be rearranged as described above, or may exceed the number of measurement values. As the number of samples increases, the reliability of the standard deviation increases, but the load of the standard deviation calculation process also increases. Therefore, the number of samples may be determined according to the use of RSSI. For example, when the information processing apparatus 10 performs processing based on RSSI, the number of samples may be determined based on whether priority is given to RSSI reliability or real-time property.
- the process of generating the above distribution and calculating the standard deviation may be performed, for example, in real time by the extraction unit 120, or based on the RSSI values that have been rearranged in numerical order in the past and accumulated. It may be performed in advance. As a result, even when the RSSI value varies, it is possible to extract an RSSI with low variation following the state of variation.
- the above processing may be performed in a place other than the extraction unit 120.
- the RSSI distribution is generated by sorting in advance, and the standard deviation is calculated from the distribution when the extraction unit 120 performs the extraction process. May be.
- the extraction unit 120 may extract a plurality of RSSIs from the RSSI within the above range.
- the extraction unit 120 may extract a plurality of RSSIs and output a calculated value obtained by statistical processing such as an average value or an intermediate value of the plurality of RSSIs as an extraction value. Thereby, it is possible to extract RSSI with lower variation.
- the plurality of RSSIs may be extracted as they are without being statistically processed.
- the processing unit 130 may perform statistical processing on the plurality of RSSIs extracted from the extraction unit 120 and use them.
- the extraction unit 120 is not limited to the above-described example, and may extract one or a plurality of RSSIs from the RSSI within the above range by various methods.
- the processing unit 130 performs a process using the extracted RSSIs. It may be performed in association with the radio wave measurement time. For example, the processing unit 130 uses the RSSI extracted by the extraction unit 120 out of the RSSI of the radio wave transmitted from the communication device, to determine the distance between the communication device and the measurement position at the first radio wave measurement time. You may go. Thereby, it is possible to reflect the time change of RSSI in the process to the process part 130 in real time.
- FIG. 13 is a flowchart illustrating an operation example of the information processing apparatus 10 according to an embodiment of the present disclosure. The operation processing of the information processing apparatus 10 according to the present embodiment will be described with reference to FIG.
- the communication unit 100 acquires the RSSI of the measured radio wave (S200). At this time, the communication unit 100 may store the acquired radio wave in the storage unit 110 or may output it to the extraction unit 120.
- the extraction unit 120 acquires a plurality of RSSIs from the storage unit 110 or the communication unit 100 and rearranges the RSSIs (S201). Then, the extraction unit 120 extracts RSSIs included in the upper 10% to upper 30% of the sorted RSSIs (S202). Note that the extraction unit 120 may store the extracted RSSI in the storage unit 110 or may output it to the processing unit 130.
- the process part 130 acquires RSSI extracted by the extraction part 120 from the memory
- the extracted RSSI value will follow the actual RSSI change with a delay, such as a change in the distance to the communication device that transmits the radio wave. It is done.
- the above delay is further caused when a behavior in which RSSI decreases occurs. This is because the extraction unit 120 extracts the RSSI included in the upper 10% to the upper 30%, so that when the RSSI decreases, the RSSI decrease is reflected from the lower order of the rearranged RSSI. Because.
- the number of measurement values to be rearranged may be set according to whether priority is given to the reliability of the RSSI extracted by the extraction unit 120 or the real-time property of the extracted RSSI, for example. Good. Specifically, in distance measurement, the number of measurement values to be rearranged may be reduced when quick detection is necessary, and the number of measurement values may be increased when precise measurement is required.
- the RSSI extraction range by the extraction unit 120 is the range of the upper 10% to the upper 30% among the plurality of rearranged RSSIs
- the present technology is not limited to this example.
- FIG. 14 is a sequence diagram illustrating a first operation example of the information processing system 1 according to an embodiment of the present disclosure.
- the communication terminal 20 transmits the gate ID of the gate beacon 31 and the article ID of the book 40 and the RSSI of the radio wave in communication with the gate beacon 31 and the article tag 41 to the information processing apparatus 10 will be described.
- the communication terminal 20 when the communication terminal 20 approaches the book 40 with the article tag 41 (S300), the communication terminal 20 starts communication with the article tag 41 and acquires the article ID from the article tag 41 (S302). Moreover, the communication terminal 20 starts measurement of the RSSI of the radio wave in communication with the article tag 41 together with the start of communication with the article tag 41 (S304).
- the communication terminal 20 When the communication terminal 20 approaches the gate beacon 31 (S306), the communication terminal 20 starts communication with the gate beacon 31 and acquires a gate ID from the gate beacon 31 (S308). Moreover, the communication terminal 20 starts measurement of the RSSI of the radio wave in communication with the gate beacon 31 together with the start of communication with the gate beacon 31 (S310).
- the communication terminal 20 transmits the communication terminal ID, the article ID, the gate ID, and the measured RSSI of the communication terminal 20 to the information processing apparatus 10 (S312). Transmission of each information to the information processing apparatus 10 by the communication terminal 20 may be performed continuously or intermittently after the communication terminal 20 starts communication with the gate beacon 31, You may implement continuously or intermittently before starting communication.
- the information processing apparatus 10 determines the communication distance between the communication terminal 20 and the article tag 41 and the communication distance between the communication terminal 20 and the gate beacon 31 using the RSSI extracted by the extraction unit 120. (S314). When the determination result does not satisfy the predetermined condition (S316 / NO), the information processing apparatus 10 returns to step S312 and acquires the RSSI from the communication terminal 20 again and re-determines (S318).
- the predetermined condition is, for example, that the distance between the communication terminal 20 and the gate beacon 31 is equal to or less than the first threshold value, and the distance between the communication terminal 20 and the article tag 41 is equal to or less than the second threshold value. It may be. Further, the setting of these threshold values is not particularly limited. The re-determination may be performed until the determination result satisfies a predetermined condition, or until the communication terminal 20 stops communication with the gate beacon 31 or the article tag 41.
- the information processing apparatus 10 When the determination result satisfies the predetermined condition (S316 / YES), the information processing apparatus 10 starts a settlement process related to the book 40 to which the article tag 41 is attached. Specifically, the information processing apparatus 10 instructs the communication terminal 20 to confirm the balance in the security chip of the communication terminal 20 (S320). The communication terminal 20 inquires about the balance in the security chip (S322), and returns the inquired balance to the information processing apparatus 10 (S324). When the returned balance is equal to or higher than the price of the book 40, the information processing apparatus 10 performs a settlement process related to the book 40 (S326).
- the information processing apparatus 10 may cause the gate beacon 31 to close the flapper or door of the gate 30 or to output a warning screen or sound. Good. In such a case, the information processing apparatus 10 may cause the user to output a screen or display related to the warning via the output unit of the communication terminal 20.
- the information processing apparatus 10 When the payment processing is normally executed, the information processing apparatus 10 issues a payment notification to the communication terminal 20 (S328).
- the communication terminal 20 receives the payment notification and updates the balance in the security chip (S330). Then, the communication terminal 20 notifies the information processing apparatus 10 that the balance has been updated and payment has been completed (S332). Further, the information processing apparatus 10 may receive the notification and invalidate the article tag 41 attached to the book 40 for which payment has been completed (S334).
- a user who possesses the communication terminal 20 can carry out a settlement related to the book 40 only by passing the gate 30 with the book 40 to which the article tag 41 is attached.
- FIG. 15 is a sequence diagram illustrating a second operation example of the information processing system 1 according to an embodiment of the present disclosure.
- the gate beacon 31 transmits the communication terminal ID of the communication terminal 20 and the article ID of the book 40 and the RSSI measurement value of the radio wave in communication with the communication terminal 20 and the article tag 41 to the information processing apparatus 10 will be described. .
- the gate beacon 31 starts communication with the article tag 41 and requests an article ID from the article tag 41 (S402). Then, the gate beacon 31 acquires the article ID from the article tag (S404). Further, the gate beacon 31 starts measurement of the RSSI of the radio wave in communication with the article tag 41 together with the start of communication with the article tag 41 (S406).
- the user having the communication terminal 20 is in the vicinity of the gate beacon 31 with the book 40 with the article tag 41 attached.
- the communication terminal 20 approaches the gate beacon 31 (S408)
- the communication terminal 20 starts communication with the gate beacon 31, and the gate beacon 31 requests the communication terminal 20 for the communication terminal ID (S410).
- the gate beacon 31 acquires communication terminal ID from the communication terminal 20 (S412).
- the gate beacon 31 starts measurement of the RSSI of the radio wave in communication with the communication terminal 20 along with the start of communication with the communication terminal 20 (S414).
- the gate beacon 31 transmits the communication terminal ID, the article ID, the gate ID of the gate 30 including the gate beacon 31, and the measured RSSI to the information processing apparatus 10 (S416).
- the transmission of each information to the information processing apparatus 10 by the gate beacon 31 may be performed continuously or intermittently after the gate beacon 31 starts communication with the communication terminal 20. You may implement continuously or intermittently before starting communication.
- the information processing apparatus 10 that has acquired each information uses the RSSI extracted by the extraction unit 120 to determine the communication distance between the gate beacon 31 and the communication terminal 20 and the communication distance between the gate beacon 31 and the article tag 41. (S418).
- the information processing apparatus 10 returns to step S416, and the information processing apparatus 10 obtains RSSI again from the gate beacon 31 and re-determines (S422).
- the predetermined condition is, for example, that the distance between the gate beacon 31 and the communication terminal 20 is equal to or smaller than the third threshold value, and that the distance between the gate beacon 31 and the article tag 41 is equal to or smaller than the fourth threshold value. It may be. These threshold values are not particularly limited.
- the re-determination may be performed until the determination result satisfies a predetermined condition, or until the gate beacon 31 stops communication with the communication terminal 20 or the article tag 41.
- the information processing apparatus 10 When the determination result satisfies the predetermined condition (S420 / YES), the information processing apparatus 10 starts a settlement process related to the book 40 to which the article tag 41 is attached.
- the processing from step S424 to step S438 is the same as the processing from step S320 to step S334 in the first operation example, and thus description thereof is omitted.
- a user who possesses the communication terminal 20 can carry out a settlement related to the book 40 only by passing the gate 30 with the book 40 to which the article tag 41 is attached.
- the gate beacon 31 plays a main role, for example, it is possible to reduce the load associated with the communication performed by the communication terminal 20 and the acquisition of RSSI.
- FIG. 16 is a sequence diagram illustrating a third operation example of the information processing system 1 according to an embodiment of the present disclosure.
- the communication terminal 20 performs a process of authenticating the book 40 and the information processing apparatus 10 determines the authentication information obtained by the authentication process.
- the communication terminal 20 starts communication with the article tag 41 and acquires the article ID from the article tag 41 (S502).
- the communication terminal 20 that has acquired the article ID starts the authentication process of the book 40 related to the article ID based on the RSSI in communication with the article tag 41 attached to the book 40 (S504).
- the authentication process of the book 40 by the communication terminal 20 may be performed by two authentication processes to be described later.
- the above two authentication processes are specifically described in “3.3.1. Configuration and operation related to first authentication process” and “3.3.2. Configuration and operation related to second authentication process”. Explained.
- the communication terminal 20 starts communication with the gate beacon 31 and acquires a gate ID from the gate beacon 31 (S508). Moreover, the communication terminal 20 starts measurement of the RSSI of the radio wave in communication with the gate beacon 31 together with the start of communication with the gate beacon 31 (S510).
- the communication terminal 20 transmits the communication terminal ID of the communication terminal 20, the gate ID, the authentication information related to the book 40, and the measured RSSI to the information processing apparatus 10 (S512).
- the authentication information includes, for example, an article ID that identifies the book 40.
- the information processing apparatus 10 that has acquired each information performs the following confirmation and determination (S514).
- the information processing apparatus 10 confirms the authentication information related to the book 40 of the communication terminal 20. Specifically, the information processing apparatus 10 confirms whether there is an article authenticated by the communication terminal 20, and if there is an authenticated article, confirms the article ID of the article. In addition, the information processing apparatus 10 determines the communication distance between the communication terminal 20 and the gate beacon 31 using the RSSI extracted by the extraction unit 120.
- the information processing apparatus 10 When the confirmation result and the determination result do not satisfy the predetermined condition (S516 / NO), the information processing apparatus 10 returns to step S512, and the information processing apparatus 10 acquires the authentication information related to the RSSI and the book 40 from the communication terminal 20 again. And re-determining (S518).
- the case where the confirmation result does not satisfy the predetermined condition is, for example, a case where the communication terminal 20 has not authenticated any book, that is, a case where it is determined that the user does not possess the book.
- step S520 to step S534 is the same as the processing from step S320 to step S334 in the first operation example, and thus description thereof is omitted.
- a user who possesses the communication terminal 20 can carry out a settlement related to the book 40 only by passing the gate 30 with the book 40 to which the article tag 41 is attached.
- the communication terminal 20 since the communication terminal 20 determines the communication distance between the article tag 41 attached to the book 40, the information processing apparatus 10 only needs to determine the communication distance between the communication terminal 20 and the gate beacon 31. Therefore, since the load related to the determination of the communication distance of the information processing apparatus 10 is reduced, communication with more communication terminals 20 becomes possible.
- the communication terminal 20 performs the authentication process of the book 40 based on the RSSI in communication with the article tag 41 attached to the book 40.
- the communication distance between the communication terminal 20 and the article tag 41 varies depending on how the user holds the communication terminal 20 and the book 40. Therefore, the communication terminal 20 uses at least one of the following two means to enable the authentication process for the book 40 regardless of the possessed mode.
- FIG. 17 is a diagram illustrating a configuration related to the first authentication process of the communication terminal 20 in the third operation example. As shown in FIG. 17, in the configuration related to the first authentication process, it is assumed that the person P1 has the book 40 with the communication terminal 20 and the article tag 41 attached in each hand.
- the communication terminal 20 and the article tag 41 exist in close proximity even while the person P1 is moving. . Therefore, when the communication terminal 20 determines that the communication distance with the article tag 41 is within a predetermined range, the communication terminal 20 may authenticate the book 40 with the article tag 41 attached. Conversely, when the communication terminal 20 determines that the distance from the article tag 41 is not within the predetermined range, the communication terminal 20 authenticates the book 40 to which the article tag 41 is attached. May be released.
- FIG. 18 is a flowchart illustrating an operation based on the configuration relating to the first authentication process of the communication terminal 20 in the third operation example.
- the communication terminal 20 acquires the item ID from the adjacent item tag 41 (S600), and acquires the RSSI of the radio wave in communication with the item tag 41 (S601).
- the operation in step S600 is the same as that in step S502 in the sequence diagram of FIG.
- the communication terminal 20 estimates the distance with the article
- the communication terminal 20 authenticates the book 40 with the article tag 41 attached (S604).
- the communication terminal 20 cancels the authentication when the book 40 with the article tag 41 is already authenticated (S605). ).
- the communication terminal 20 returns to step S601 again after step S604 or S605 and acquires RSSI from the article tag 41. This operation may be repeatedly performed until the book 40 attached to the article tag 41 is settled or communication between the communication terminal 20 and the article tag 41 is stopped.
- FIG. 19 is a diagram illustrating a configuration related to the second authentication process of the communication terminal 20 in the third operation example.
- the communication terminal 20 is stored in the bag 21, but for example, the communication terminal 20 may be assumed to be stored in a pocket of clothes.
- the distance between the communication terminal 20 and the article tag 41 attached to the book 40 varies depending on the storage position of the communication terminal 20. .
- the distance between the communication terminal 20 and the book 40 is generally constant. Therefore, the communication terminal 20 determines that the fluctuation value of the communication distance between the article tag 41 and the communication terminal 20 is within a predetermined range continuously for a predetermined time from the RSSI value of the radio wave in communication with the article tag 41. In this case, the communication terminal 20 may authenticate the book 40 with the article tag 41 attached. Conversely, when it is determined that the variation value of the communication distance between the article tag 41 and the communication terminal 20 exceeds a predetermined range, the communication terminal 20 determines that the book 40 with the article tag 41 is authenticated. The authentication may be canceled.
- FIG. 20 is a flowchart showing an operation based on the configuration related to the second authentication process of the communication terminal 20 in the third operation example.
- the communication terminal 20 acquires the item ID from the adjacent item tag 41 (S700), and acquires the RSSI of the radio wave in communication with the item tag 41 (S701).
- the operation in step S700 is the same as that in step S502 in the sequence diagram of FIG.
- the communication terminal 20 estimates the distance with the article
- the communication terminal 20 reads the book with the article tag 41 attached thereto. 40 is authenticated (S704).
- the communication terminal 20 cancels the authentication when the book 40 with the article tag 41 is already authenticated. (S705).
- the communication terminal 20 repeatedly performs the above operation, and appropriately performs authentication and deauthorization of the book 40. With this configuration, even if the positional relationship between the communication terminal 20 and the book 40 is different depending on the person, the book 40 can be authenticated from the time variation of the distance between the communication terminal 20 and the article tag 41.
- the communication terminal 20 returns to step S701 again after the operation of step S704 or S705 is completed, and acquires RSSI from the article tag 41. This operation may be repeatedly performed until the book 40 attached to the article tag 41 is settled or communication between the communication terminal 20 and the article tag 41 is stopped.
- the communication terminal 20 may present to the user that the book 40 has been authenticated. Specifically, the communication terminal 20 may display on the screen of the communication terminal 20 that the book 40 has been authenticated to the user, or may output by voice. As a result, the user can recognize that the communication terminal 20 has authenticated the book 40.
- the communication terminal 20 may cause the user to select whether or not to perform the authentication. Specifically, the communication terminal 20 may determine whether or not to perform the authentication by an input by a user via the input unit. Thereby, authentication of the book 40 which a user does not intend can be avoided. Moreover, the communication terminal 20 may cancel
- the communication terminal 20 may perform an authentication process in which the first authentication process and the second authentication process are combined. Specifically, the communication distance between the communication terminal 20 and the article tag 41 is within the first range, and the fluctuation value of the communication distance between the communication terminal 20 and the article tag 41 is the second value continuously for a predetermined time. If it is within the range, the communication terminal 20 may authenticate the book 40. Thereby, the authentication accuracy of the communication terminal 20 can be improved.
- the information processing apparatus 10 may perform the above authentication process. For example, the information processing apparatus 10 acquires the RSSI of radio waves in communication between the communication terminal 20 and the article tag 41. When the communication distance calculated from the RSSI or the fluctuation value of the communication distance satisfies the above conditions, the information processing apparatus 10 may authenticate the book 40 by linking it to the communication terminal 20. As a result, it is possible to collectively perform the authentication process in the information processing apparatus 10.
- FIG. 21 is a sequence diagram illustrating a fourth operation example of the information processing system 1 according to an embodiment of the present disclosure.
- the communication terminal 20 performs the process of authenticating the book 40
- the gate beacon 31 provides the authentication information related to the book 40, the communication terminal ID of the communication terminal 20, and the RSSI measurement value of the radio wave in communication with the communication terminal 20. A case of transmitting to the processing apparatus 10 will be described.
- the communication terminal 20 starts communication with the article tag 41 and acquires the article ID from the article tag 41 (S802). And the communication terminal 20 which acquired article
- the communication terminal 20 When the communication terminal 20 approaches the gate beacon 31 (S806), the communication terminal 20 starts communication with the gate beacon 31, and the gate beacon 31 requests the communication terminal 20 for the communication terminal ID and the authentication information related to the book 40 ( S808). Then, the gate beacon 31 acquires the communication terminal ID and the authentication information related to the book 40 from the communication terminal 20 (S810). Moreover, the gate beacon 31 starts measurement of the RSSI of the radio wave in communication with the communication terminal 20 together with the start of communication with the communication terminal 20 (S812).
- the gate beacon 31 transmits the communication terminal ID of the communication terminal 20, the gate ID of the gate 30 including the gate beacon 31, the authentication information related to the book 40, and the measured RSSI to the information processing apparatus 10 (S814).
- the information processing apparatus 10 that has acquired each information performs the following confirmation and determination (S816). First, the information processing apparatus 10 confirms the authentication information related to the book 40 of the communication terminal 20. In addition, the information processing apparatus 10 determines the communication distance between the communication terminal 20 and the gate beacon 31 using the RSSI extracted by the extraction unit 120.
- the information processing apparatus 10 When the confirmation result and the determination result do not satisfy the predetermined condition (S818 / NO), the information processing apparatus 10 returns to step S814, and the information processing apparatus 10 acquires the authentication information related to the RSSI and the book 40 from the gate beacon 31 again. And re-determining (S820).
- step S822 to step S836 is the same as the processing from step S320 to step S334 in the first operation example, and thus description thereof is omitted.
- a user who possesses the communication terminal 20 can carry out a settlement related to the book 40 only by passing the gate 30 with the book 40 to which the article tag 41 is attached.
- authentication processing, measurement processing, and determination processing processed in the information processing apparatus 10, the communication terminal 20, and the gate beacon 31 are each distributed. Thereby, for example, more users can enjoy the service provided by the information processing system 1.
- Modified example of information processing system according to this embodiment >> The operation example of the information processing system 1 including the information processing apparatus 10 has been described above. Subsequently, a modification of the information processing system 1 including the information processing apparatus 10 described above will be specifically described.
- the information processing system 1 in this modification has a configuration in which an authentication beacon 32 is further added to the configuration of the information processing system 1 described above.
- FIGS. 22 and 23 a configuration and an operation example of a modification of the information processing system will be described.
- FIG. 22 is a diagram illustrating a configuration of a modified example of the information processing system 1 according to an embodiment of the present disclosure.
- the information processing system 1 includes an information processing apparatus 10, a communication terminal 20, gates 30A and 30B, and authentication beacons 32A and 32B.
- Gates 30A and 30B have gate beacons 31A and 31B, respectively.
- description is abbreviate
- the authentication beacon 32 is a beacon that is installed near the entrance of a store that uses the information processing system 1 or at any location in the store.
- the authentication beacon 32 communicates with the information processing apparatus 10 and the communication terminal 20 to perform various information processing.
- the authentication beacon 32 may authenticate the communication terminal 20 used for payment and transmit information related to the authenticated communication terminal 20 to the information processing apparatus 10.
- the authentication beacon 32 starts communication with the communication terminal 20, and determines whether the communication terminal 20 is a terminal used for payment. Check.
- the authentication beacon 32 requests the information processing apparatus 10 to authenticate the communication terminal 20.
- the information processing apparatus 10 performs processing for authenticating that the communication terminal 20 is a payment use terminal.
- the information processing apparatus 10 stores the communication terminal ID of the communication terminal 20 with a flag indicating that it is a payment use terminal.
- the information processing apparatus 10 notifies the communication terminal 20 that the terminal is available for payment.
- the communication terminals 20 and 22 are used for settlement by the authentication beacon 32A. It is confirmed whether or not it is a terminal. In such an example, it is assumed that the communication terminal 20 responds to the authentication beacon 32A that only the communication terminal 20 is used for payment by the user's input.
- the communication terminal 20 responds to the authentication beacon 32A that only the communication terminal 20 is used for payment by the user's input.
- the communication terminal 22 that is not authenticated as a terminal used for payment does not communicate with the gate beacon 31 or the like.
- the authentication beacon 32 in the information processing system 1, for example, when a user has a plurality of communication terminals, it is possible to select a terminal for which payment processing is to be performed. This prevents a terminal that should not perform the payment process from erroneously executing the payment process, thereby ensuring user convenience.
- the information processing apparatus 10 transmits other information to the communication terminal 20, for example, when notifying that the communication terminal 20 used for payment is authenticated. May be. Specifically, the information processing apparatus 10 may transmit the communication terminal 20 with an advertisement such as a product discount coupon or a flyer together with the notification related to the authentication. Further, when the authentication beacon 32 communicates with the communication terminal 20, the authentication beacon 32 may transmit the coupon or the like to the communication terminal 20 instead of the process related to the authentication. In addition, the information processing apparatus 10 displays, on the communication terminal 20, information for recommending an article placed in a store based on information on an article purchased by the user using the communication terminal 20 in the past, or display of the article. Information indicating the position may be transmitted. Thereby, it becomes possible to improve a user's convenience.
- the form of the authentication beacon 32 installed in the store is not particularly limited.
- it may be provided at the gate described above, or the beacon may be installed as it is on the wall surface, ceiling, floor, or side surface of the bookcase.
- FIG. 23 is a sequence diagram illustrating an operation example based on the configuration of the modification example of the information processing system 1 according to an embodiment of the present disclosure.
- the communication terminal 20 is first authenticated as an information processing apparatus 10 payment use terminal via the authentication beacon 32, and then the communication terminal 20 is connected to the gate ID of the beacon 31, the article authentication information, and the gate beacon 31. A case where the RSSI measurement value of the radio wave in the communication is transmitted to the information processing apparatus 10 will be described.
- the authentication beacon 32 starts communication with the communication terminal 20 and confirms whether or not the communication terminal 20 is a terminal used for payment (S902). .
- the communication terminal 20 transmits an authentication request to the authentication beacon 32 to authenticate as a terminal used for payment (S904).
- the communication terminal 20 transmits its own communication terminal ID to the authentication beacon 32.
- the authentication beacon 32 transmits the authentication request and communication terminal ID acquired from the communication terminal 20 to the information processing apparatus 10 (S906). At this time, the authentication beacon 32 may transmit an authentication beacon ID for identifying the authentication beacon 32 to the information processing apparatus 10.
- the communication terminal 20 may directly transmit an authentication request and a communication terminal ID to the information processing apparatus 10.
- the information processing apparatus 10 performs a process of authenticating that the communication terminal 20 is a payment use terminal (S908), and notifies the communication terminal 20 that it is a payment usable terminal (S910). At this time, the information processing apparatus 10 may transmit various information to the communication terminal 20 together with the notification.
- the communication terminal 20 comes close to the book 40 with the article tag 41 (S912)
- the communication terminal 20 starts communication with the article tag 41 and acquires the article ID from the article tag 41 (S914).
- item ID starts the authentication process of the book 40 concerning article
- the communication terminal 20 starts communication with the gate beacon 31 and acquires a gate ID from the gate beacon 31 (S920). Moreover, the communication terminal 20 starts measurement of the RSSI of the radio wave in communication with the gate beacon 31 together with the start of communication with the gate beacon 31 (S922).
- the communication terminal 20 transmits the communication terminal ID of the communication terminal 20, the gate ID, the authentication information related to the book 40, and the measured RSSI to the information processing apparatus 10 (S924).
- the information processing apparatus 10 that has acquired each information performs the following confirmation and determination (S926). First, based on the communication terminal ID transmitted from the communication terminal 20, the information processing apparatus 10 determines whether or not the terminal is authenticated as a payment use terminal. Further, the information processing apparatus 10 confirms the authentication information related to the book 40 of the communication terminal 20. In addition, the information processing apparatus 10 determines the communication distance between the communication terminal 20 and the gate beacon 31 using the RSSI extracted by the extraction unit 120.
- the information processing apparatus 10 When the confirmation result and the determination result do not satisfy the predetermined condition (S928 / NO), the information processing apparatus 10 returns to step S924, and the information processing apparatus 10 acquires again the authentication information related to the RSSI and the book 40 from the communication terminal 20. And re-determining (S930).
- the predetermined condition may include, for example, that the communication terminal 20 has not been authenticated by the information processing apparatus 10 as a payment use terminal. .
- step S932 to step S946 is the same as the processing from step S320 to step S334 in the first operation example of the present embodiment, and thus description thereof is omitted.
- a user who possesses the communication terminal 20 can carry out a settlement related to the book 40 only by passing the gate 30 with the book 40 to which the article tag 41 is attached. In this case, for example, it becomes possible to make a payment by reliably selecting only a terminal that the user wants to use for the payment.
- Hardware configuration diagram >> The configuration and operation example of the information processing apparatus 10 and the information processing system 1 according to an embodiment of the present disclosure have been described above. The information processing of the information processing apparatus 10 described above is realized by cooperation between software and the information processing apparatus 10. Hereinafter, a hardware configuration of the information processing apparatus 10 will be described as an example.
- FIG. 24 is a block diagram illustrating a hardware configuration of the information processing apparatus 10 according to an embodiment of the present disclosure.
- the information processing apparatus 10 includes a CPU (Central Processing Unit) 1001, a ROM (Read Only Memory) 1002, a RAM (Random Access Memory) 1003, and a host bus 1004.
- the information processing apparatus 10 includes a bridge 1005, an external bus 1006, an interface 1007, an input device 1008, an output device 1009, a storage device 1010, a drive 1011, and a network interface 1013.
- the CPU 1001 functions as an arithmetic processing unit and a control unit, and controls the overall operation in the information processing apparatus 10 according to various programs. Further, the CPU 1001 may be a microprocessor. The CPU 1001 controls the overall operation within the information processing apparatus 10 including the extraction unit 120 and the processing unit 130.
- the ROM 1002 stores programs, calculation parameters, and the like used by the CPU 1001.
- the RAM 1003 temporarily stores programs used in the execution of the CPU 1001, parameters that change as appropriate during the execution, and the like. These are connected to each other by a host bus 1004 including a CPU bus.
- the host bus 1004 is connected to an external bus 1006 such as a peripheral component interconnect / interface (PCI) bus via a bridge 1005.
- PCI peripheral component interconnect / interface
- the host bus 1004, the bridge 1005, and the external bus 1006 are not necessarily separated from each other, and these functions may be mounted on one bus.
- the input device 1008 includes input means for a user to input information, such as a mouse, keyboard, touch panel, button, microphone, switch, and lever, and an input control circuit that generates an input signal based on the input by the user and outputs the input signal to the CPU 1001 Etc.
- a user of the information processing apparatus 10 can input various data and instruct a processing operation to the information processing apparatus 10 by operating the input device 1008.
- the output device 1009 includes display devices such as a CRT display device, a liquid crystal display (LCD) device, an OLED device, and a lamp. Further, the output device 1009 includes an audio output device such as a speaker and headphones. The output device 1009 outputs reproduced content, for example. Specifically, the display device displays various information such as reproduced video data as text or images. On the other hand, the voice output device converts reproduced voice data, text data displayed on the display device, and the like into voice and outputs the voice.
- display devices such as a CRT display device, a liquid crystal display (LCD) device, an OLED device, and a lamp. Further, the output device 1009 includes an audio output device such as a speaker and headphones.
- the output device 1009 outputs reproduced content, for example. Specifically, the display device displays various information such as reproduced video data as text or images.
- the voice output device converts reproduced voice data, text data displayed on the display device, and the like into voice and outputs the voice.
- the storage apparatus 1010 is an apparatus for storing data in the information processing apparatus 10 according to an embodiment of the present disclosure.
- the storage device 1010 may include a storage medium, a recording device that records data in the storage medium, a reading device that reads data from the storage medium, a deletion device that deletes data stored in the storage medium, and the like.
- the storage device includes, for example, an HDD (Hard Disc Drive) and an SSD (Solid State Drive).
- the storage device 1010 stores programs executed by the CPU 1001 and various data. Note that the storage device 1010 realizes the function of the storage unit 110.
- the drive 1011 is a reader / writer for a storage medium, and is built in or externally attached to the information processing apparatus 10.
- the drive 1011 reads information recorded on a removable storage medium 1012 such as a mounted magnetic disk, optical disk, magneto-optical disk, or semiconductor memory, and outputs the information to the RAM 1003.
- the drive 1011 can also write information to the removable storage medium 1012.
- the network interface 1013 is a communication interface configured by a communication device for connecting to another device, for example.
- the network interface 1013 may be a wireless LAN (Local Area Network) compatible communication device, an LTE (Long Term Evolution) compatible communication device, or a Bluetooth communication device.
- the network interface 1013 may be a wire communication device that performs wired communication. Note that the network interface 1013 realizes the function of the communication unit 100.
- the information processing apparatus 10 rearranges the acquired RSSIs and extracts the RSSIs included in the upper 10% to upper 30% range, thereby reducing the time variation of the extracted RSSI . Thereby, the process based on RSSI can be more reliably performed.
- the information processing apparatus 10 can change the number of RSSIs to be extracted, the selection method, the number of measurements to be extracted, and the like according to conditions (for example, real-time property and accuracy) required for processing. This makes it possible to use RSSI in accordance with the specifications required by the application target.
- the information processing system 1 can be configured by the functions realized by the information processing apparatus 10 described above, for example, the communication distance between the communication terminal 20 and the gate beacon 31, or the communication terminal 20 and the article tag. It is possible to accurately determine the communication distance with 41. As a result, for example, as described in the present embodiment, the user can settle the book 40 simply by passing the gate 30 with the communication terminal 20 and the book 40.
- the information processing system 1 can authenticate a terminal used for payment by the function realized by the information processing apparatus 10 described above. As a result, the user can select a terminal to be used for settlement, and can realize more secure settlement.
- the processing unit 130 performs processing using the RSSI output from the extraction unit 120.
- the timing of processing by the processing unit 130 is not particularly limited.
- the processing unit 130 may perform processing based on RSSI values acquired in the past. Thereby, for example, it is possible to estimate the history of each communication distance.
- the communication terminal 20 and the gate beacon 31 measure the RSSI of radio waves in communication.
- the present technology is not limited to such an example.
- the article tag 41 when the article tag 41 is an active tag, the article tag 41 may measure the RSSI of radio waves in communication with the communication terminal 20 and the gate beacon 31.
- the RSSI measured by the article tag 41 may be transmitted to the information processing apparatus 10 via the communication terminal 20 and the gate beacon 31 or may be directly transmitted to the information processing apparatus 10.
- the information processing apparatus 10 determines the two communication distances of the communication distance between the communication terminal 20 and the article tag 41 and the communication distance between the communication terminal 20 and the gate beacon 31.
- the present technology is not limited to such an example.
- the information processing apparatus 10 may determine three or more communication distances between the plurality of communication apparatuses. Specifically, when radio waves are transmitted from a plurality of communication devices to one device, the information processing device 10 determines the position of the one device from the communication distance between the one device and the plurality of communication devices. Can also be estimated.
- the information processing apparatus 10 inquires about the balance recorded in the security chip included in the communication terminal 20, but the present technology is not limited to such an example.
- the information processing apparatus 10 may perform settlement using information such as a bank account and a credit card of the user of the communication terminal 20 from the communication terminal ID of the communication terminal 20.
- the predetermined process performed by the processing unit 130 of the information processing apparatus 10 is not limited to the communication distance determination process described above.
- the predetermined process may be a process of selecting a base station to be used when the information processing apparatus 10 communicates with an external network. That is, the information processing apparatus 10 may perform a process of selecting a base station having a higher RSSI value based on the measurement result output to the processing unit 130. Thereby, the information processing apparatus 10 can select a base station that can efficiently perform communication.
- the predetermined processing may be processing for determining whether or not to interrupt communication with another communication device. That is, the information processing apparatus 10 may perform a process of determining whether to interrupt communication with the communication apparatus based on the measurement result output to the processing unit 130. Thereby, the information processing apparatus 10 can interrupt the above transmission / reception when the RSSI is lowered when, for example, high-capacity data is being transmitted / received to / from another communication apparatus, assuming that the communication efficiency is lowered. As a result, the information processing apparatus 10 and the communication apparatus can avoid consuming extra power when the communication efficiency decreases.
- the information processing apparatus 10 has a configuration independent of the communication terminal 20 and the gate beacon 31, but the present technology is not limited to this example.
- the communication terminal 20 and the gate beacon 31 may have each functional unit included in the information processing apparatus 10.
- an information processing system in which the information processing device 10, the communication terminal 20, and the gate beacon 31 are integrated to realize the functions of the respective functional units of the information processing device 10 may be provided.
- each step in the processing of the information processing apparatus 10 of this specification does not necessarily have to be processed in time series in the order described as a flowchart.
- each step in the processing of the information processing apparatus 10 may be processed in an order different from the order described as the flowchart, or may be processed in parallel.
- the information processing system 1 has been described as being applied to a bookstore, but the present technology is not limited to such an example.
- the information processing system 1 according to the present embodiment is applicable to retail stores such as electrical stores, shopping centers, and convenience stores, rental shops, libraries, and the like.
- the information processing system 1 according to the present embodiment can be applied to, for example, a warehouse that performs inventory management or the like, or a transportation business that manages cargo delivery or the like.
- the information processing apparatus further includes a storage unit that rearranges the strengths indicated by the plurality of measurement results acquired by the acquisition unit in numerical order, and stores the strengths for each rank, The information processing apparatus according to (1) or (2), wherein the extraction unit determines a measurement result to be extracted based on a plurality of the intensity distributions stored in the storage unit for each rank. (5) The information processing apparatus according to (4), wherein the extraction unit determines a measurement result to be extracted using a standard deviation of the distribution.
- the extraction unit extracts a measurement result indicating an intensity within the range from a plurality of measurement results in a period including a first time point, The information processing apparatus according to any one of (1) to (5), wherein the processing unit performs the predetermined processing in association with a first time point using the measurement result extracted by the extraction unit. (7) The information processing apparatus according to any one of (1) to (6), wherein the extraction unit extracts a plurality of measurement results from a measurement result indicating an intensity within the range.
- the radio wave is transmitted from a communication device, The information processing apparatus according to any one of (1) to (7), wherein the predetermined process includes a process of determining a communication distance between the communication apparatus and the measurement position of the radio wave.
- the communication device includes a first communication device and a second communication device associated with an article
- the processor is The first communication distance between the first communication device and the measurement position of the radio wave transmitted from the first communication device, and the second communication device and the second communication device. Determine the second communication distance to the radio wave measurement position,
- An acquisition unit for acquiring radio wave measurement results;
- An extraction unit for extracting measurement results indicating intensities included in a range from the top 10% to the top 30% of the plurality of measurement results acquired by the acquisition unit;
- a processing unit that performs a predetermined process using the measurement result extracted by the extraction unit;
- An information processing system comprising:
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Abstract
Description
1.本実施形態に係る情報処理システムの概要と構成
2.本実施形態に係る情報処理装置の構成と動作
2.1.構成
2.2.RSSIの抽出範囲
2.3.動作
2.4.補足
3.本実施形態に係る情報処理システムの動作
3.1.第1の動作例
3.2.第2の動作例
3.3.第3の動作例
3.3.1.第1の認証処理に係る構成と動作
3.3.2.第2の認証処理に係る構成と動作
3.3.3.補足
3.4.第4の動作例
4.本実施形態に係る情報処理システムの変形例
4.1.情報処理システムの構成
4.2.情報処理システムの動作例
5.ハードウェア構成図
6.まとめ
以下、本開示の一実施形態に係る情報処理システム1の概要について、図1および図2を参照しながら説明する。図1は、本開示の一実施形態に係る情報処理システム1における構成の概要を示す図である。なお、図1に示したように、本実施形態に係る情報処理システム1は、例えば、書店における書籍の決済システム等に適用可能であるが、本技術はかかる例に限定されない。例えば、情報処理システム1は、ショッピングセンターやコンビニエンスストア等の小売店における決済や、レンタルショップや図書館における貸出処理等、他の分野にも適用可能である。以下では、本実施形態に係る情報処理システム1が、書店の決済システムに適用される例について説明する。
図1に示したように、書店に入店した人物P0は、通信端末20を手に所持している。通信端末20は、例えば、携帯電話やスマートフォン、タブレット等の移動端末や、スマートウォッチやスマートグラス等のウェアラブル端末であってもよい。通信端末20の機能等については後述する。
図2は、本開示の一実施形態に係る情報処理システム1の構成を示す図である。図2に示したように、情報処理システム1は、情報処理装置10、通信端末20、並びにゲート30Aおよび30Bを有する。また、ゲート30Aおよび30Bは、ゲートビーコン31Aおよび31Bを有する。
通信端末20は、例えば、携帯電話やスマートフォン、タブレット等の移動端末や、スマートウォッチやスマートグラス等のウェアラブル端末などの通信端末である。通信端末20は、情報処理装置10等との通信を行う通信部、通信端末20の制御を行う制御部、ユーザが情報を通信端末20に入力するための入力部、およびユーザに情報を出力するための出力部等を有してもよい。入力部としての機能は、例えば、タッチパネルやボタン等により実現されてもよい。出力部としての機能は、例えば、CRT(Cathode Ray Tube)ディスプレイ装置、LCD(Liquid Crystal Display)装置、またはOLED(Organic Light Emitting Diode)装置等により実現されてもよい。また、入力部および出力部としての機能は、マイクやスピーカ等の音声入出力装置により実現されてもよい。
ゲート30は、情報処理システム1を利用する店舗の出口付近やレジスター付近等に設置されるゲートであってもよい。例えば、ゲート30は、例えば、人物の通過を遮蔽し人物が通過してもよいと判定された場合に開放されるフラッパーが付設されたフラッパーゲートや、ドアが付設されたドアゲートなどであってもよい。例えば、情報処理装置10が書籍40に関する処理を完了すると、ゲート30Aおよび30Bの間に設けられたフラッパーやドアが開放されてもよい。
書籍40は、情報処理装置10を利用する店舗において販売されている物品の一例である。例えば、上記物品は、書店に置かれている書籍や雑誌、新聞等に限らず、ショッピングセンターやコンビニエンスストア等の小売店で販売されている日用品や食料品、雑貨、衣服、家具、電機製品、嗜好品、エンターテインメント製品等、店舗において陳列される商品であれば特に限定されない。また、商品に限らず、例えば、レンタルショップや図書館等で貸し出される書籍やビデオ、DVD(Digital Versatile Disc)ソフト等であってもよい。
情報処理装置10は、通信端末20、ゲートビーコン31Aおよび31Bのいずれかのビーコン、および物品タグ41に関する情報に基づき、所定の処理を実施する。具体的には、情報処理装置10は、通信端末20、ゲートビーコン31Aおよび31B、並びに物品タグ41を識別する情報を取得する。また、情報処理装置10は、通信端末20において測定された通信電波の強度に関する情報を取得する。
上記の情報処理システム1の適正な運用を実現するためには、各通信距離を正しく判定することが求められる。例えば、情報処理装置は、通信端末20とゲートビーコン31Aの通信距離、および物品タグ41とゲートビーコン31Aの通信距離が所定の範囲内であることを確実に判定することが求められる。ここで、各通信距離の判定においては、電波のRSSIが用いられる。つまり、測定されたRSSIの強弱に応じて、通信距離が推定される。
<2.1.構成>
以下では、本実施形態に係る情報処理装置10の構成について説明する。図3は、本開示の一実施形態に係る情報処理装置10の構成を示すブロック図である。図3に示すように、本実施形態による情報処理装置10は、通信部100、記憶部110、抽出部120、および処理部130を含む。
通信部100は、通信端末20やゲートビーコン31と情報の送受信を行うためのインタフェースである。例えば、通信部100は、通信端末20およびゲートビーコン31と無線通信を行い、通信端末20およびゲートビーコン31が測定した電波のRSSIを含む測定結果を取得する。例えば、通信部100は、通信端末20およびゲートビーコン31または物品タグ41等との間の通信に用いられた電波の測定結果を取得してもよい。なお、通信部100は、ゲートビーコン31と有線により通信してもよい。
記憶部110は、通信部100、抽出部120および処理部130から得られた情報を記憶する。例えば、記憶部110は、通信部100が取得した電波の測定結果を時系列に記憶してもよい。また、記憶部110は、抽出部120により並べ替えられた測定データを記憶してもよい。また、記憶部110は、処理部130により処理された内容を記憶してもよい。また、記憶部110は、記憶した測定データを抽出部120に出力してもよい。
抽出部120は、通信部100または記憶部110から出力された測定結果のうち、所定の範囲内のRSSIを示す測定結果を抽出する。上記所定の範囲内のRSSIは、例えば、上位10%~上位30%の範囲に含まれるRSSIであってもよい。具体的には、抽出部120は、所定の時間内に取得されたRSSIを高い順に並べ替え、並べ替えられたRSSIのうち上位10%~上位30%の範囲に含まれるRSSIを抽出する。なお、抽出部120は、上位10%および上位30%におけるRSSIも抽出し得る。上記範囲に含まれるRSSIは、以下で説明するように、ノイズによる変動の小さいRSSIである。後述する処理部130は、ノイズによる変動の小さいRSSIを用いることにより、精度の高い処理が可能である。なお、抽出範囲の根拠については、「2.2.RSSIの抽出範囲」において具体的に説明する。
処理部130は、抽出部120および記憶部110から出力された測定結果に係る情報を用いて、所定の処理を実行する。例えば、処理部130は、抽出部120により抽出された測定結果を用いて、所定の処理を実行してもよい。また、処理部130は、抽出部120により抽出された後に記憶部110に記憶された一または複数の測定結果を用いて、所定の処理を実行してもよい。
図4は、取得された電波のRSSIの時間変化の一例を示すグラフG1である。グラフG1は、RSSIの取得データG10の時間変化を示す。なお、グラフG1の横軸は時間を示し、また、縦軸はRSSIを示す。また取得された電波の測定時間の間隔は、約0.1~0.3秒である。
図5は、取得された複数の電波のRSSIを時刻ごとに並べ替えた値を格納するテーブルT1の一例である。テーブルT1は、測定時刻フィールドT10、RSSIフィールドT11、およびソートフィールドT12を含む。測定時刻フィールドT10には、実際にRSSIを測定した時刻が格納されている。RSSIフィールドT11には、測定時刻フィールドT10に示された時刻におけるRSSIが格納されている。例えば、最新のRSSI測定時刻である「16時24分25秒241」の時点におけるRSSI値は、RSSI値T101に示されているように、-70dBmである。
次に、ソートフィールドT12に順位ごとに格納されたRSSIの分布について説明する。
図6に示された標準偏差の値を根拠として、例えば、抽出部120は、2位から6位まで、つまり、上位10%~上位30%の範囲に含まれるRSSIを抽出してもよい。これにより、取得した複数のRSSIの分布のばらつきの影響を抑えることができる。
なお、上述した例においては、並べ替えの対象となる測定値の数は、上記測定時刻から過去にわたり20回としたが、本技術は係る例に限定されない。例えば、過去50回、または100回など、並べ替えの対象となる期間は適用対象に応じて自由に設定可能である。以下、並べ替えの対象の測定値の数を50回、または100回とした例においても上述した抽出部120によるRSSIの抽出範囲が妥当であることについて説明する。
図9は、順位ごとに格納された複数のRSSIから算出された標準偏差の一例を示すグラフG4である。グラフG4の横軸に記載された数字は並べ替えにより決定された順位を示しており、図9に示した例では、50となっている。つまり、図9においては、ある電波測定時刻から過去50回測定されたRSSIが数値順に並べ替えられ、順位ごとに格納された上記RSSIの分布から得られた標準偏差が、順位ごとに示されている。
また、図11は、順位ごとに格納された複数のRSSIから算出された標準偏差の一例を示すグラフG6である。グラフG6の横軸に記載された数字は並べ替えにより決定された順位を示しており、図11に示した例では、100となっている。つまり、図11においては、ある電波測定時刻から過去100回測定されたRSSIが数値順に並べ替えられ、順位ごとに格納された上記RSSIの分布から得られた標準偏差が、順位ごとに示されている。
図4~12に示した例においては、抽出部120は、通信部100が取得した複数のRSSIのうち、上位10%~上位30%の範囲に含まれるRSSIを抽出したが、本技術はRSSIの抽出範囲が上記の範囲であれば、抽出するRSSIは特に限定されない。
図13は、本開示の一実施形態に係る情報処理装置10の動作例を示すフローチャートである。図13を参照しながら、本実施形態に係る情報処理装置10の動作処理について説明する。
以上、本実施形態に係る情報処理装置10の構成および動作について説明した。また、本実施形態に係る情報処理装置10の、特に抽出部120によるRSSIの抽出手段について具体的に説明した。例えば、抽出部120において抽出するRSSIの範囲をRSSIの示す値の上位10%~上位30%に含まれる範囲とすることにより、時間変動の小さいRSSIに基づく処理を行うことが可能となる。
以上、本実施形態に係る情報処理装置10の構成と動作について説明した。続いて、上述した情報処理装置10を含む情報処理システム1の動作について具体的に説明する。情報処理システム1は、上述した情報処理装置10により抽出された時間変動の小さいRSSIを用いることにより、装置間の通信距離についてより精度高く判定することが可能となる。以下、図14~21を参照して、情報処理システム1の動作第1~第4の動作例について説明する。
図14は、本開示の一実施形態に係る情報処理システム1の第1の動作例を示すシーケンス図である。ここでは、通信端末20がゲートビーコン31のゲートIDおよび書籍40の物品ID、並びにゲートビーコン31および物品タグ41との通信における電波のRSSIを情報処理装置10に送信するケースについて説明する。
以上、情報処理システム1の第1の動作例について説明した。次に、情報処理システム1の第2の動作例について説明する。
以上、情報処理システム1の第2の動作例について説明した。次に、情報処理システム1の第3の動作例について説明する。
(構成)
まず、通信端末20による書籍40の第1の認証処理に係る構成と動作について説明する。図17は、第3の動作例における通信端末20の第1の認証処理に係る構成を示す図である。図17に示すように、第1の認証処理に係る構成においては、人物P1が通信端末20および物品タグ41が付された書籍40をそれぞれの手に持っていると想定する。
図18は、第3の動作例における通信端末20の第1の認証処理に係る構成に基づく動作を示すフローチャートである。まず、通信端末20は、近接する物品タグ41から物品IDを取得し(S600)、物品タグ41との通信における電波のRSSIを取得する(S601)。なお、ステップS600における動作は、図16のシーケンス図におけるステップS502と同一の動作である。そして、通信端末20は、取得したRSSIに基づき物品タグ41との距離を推定する(S602)。
(構成)
次に、通信端末20による書籍40の第2の認証処理に係る構成と動作について説明する。図19は、第3の動作例における通信端末20の第2の認証処理に係る構成を示す図である。図19に示すように、第2の認証処理においては、人物P2は通信端末20を鞄21に収納し、物品タグ41が付された書籍40を抱えていると想定する。なお、図19においては、通信端末20は鞄21に収納されているとしたが、例えば、通信端末20は、衣服のポケット等に収納されていると想定されてもよい。
図20は、第3の動作例における通信端末20の第2の認証処理に係る構成に基づく動作を示すフローチャートである。まず、通信端末20は、近接する物品タグ41から物品IDを取得し(S700)、物品タグ41との通信における電波のRSSIを取得する(S701)。なお、ステップS700における動作は、図16のシーケンス図におけるステップS502と同じ動作である。そして、通信端末20は、取得したRSSIに基づき物品タグ41との距離を推定する(S702)。
なお、通信端末20が書籍40を認証する際、例えば、通信端末20は、ユーザに対して書籍40を認証した旨を提示してもよい。具体的には、通信端末20は、ユーザに対して書籍40を認証した旨を通信端末20の画面に表示してもよいし、音声により出力してもよい。これにより、ユーザは通信端末20が書籍40を認証したことを認知することが可能である。
以上、情報処理システム1の第3の動作例について説明した。次に、情報処理システム1の第4の動作例について説明する。
以上、情報処理装置10を含む情報処理システム1の動作例について説明した。続いて、上述した情報処理装置10を含む情報処理システム1の変形例について具体的に説明する。本変形例における情報処理システム1は、上述した情報処理システム1の構成に、さらに認証ビーコン32を追加した構成を有する。以下、図22および図23を参照して、情報処理システムの変形例の構成および動作例について説明する。
図22は、本開示の一実施形態に係る情報処理システム1の変形例の構成を示す図である。図22に示したように、情報処理システム1は、情報処理装置10、通信端末20、ゲート30Aおよび30B、並びに認証ビーコン32Aおよび32Bを含む。また、ゲート30Aおよび30Bは、それぞれにゲートビーコン31Aおよび31Bを有する。なお、認証ビーコン32Aおよび32B以外の構成の有する機能については、説明を省略する。
認証ビーコン32は、情報処理システム1を利用する店舗の入口付近や店内の任意の箇所に設置されるビーコンである。認証ビーコン32は、情報処理装置10および通信端末20と通信を行い、各種情報処理を行う。例えば、認証ビーコン32は、決済に利用する通信端末20を認証し、認証された通信端末20に係る情報を情報処理装置10に送信してもよい。
以上、情報処理システム1の変形例の構成について説明した。次に、情報処理システム1の変形例における動作例について説明する。
以上、本開示の一実施形態に係る情報処理装置10および情報処理システム1の構成および動作例について説明した。上述した情報処理装置10の情報処理は、ソフトウェアと、情報処理装置10との協働により実現される。以下では、一例として、情報処理装置10のハードウェア構成を説明する。
ここまで、図1~図24を用いて、本開示の一実施形態について詳細に説明した。本開示の一実施形態に係る情報処理装置10は、取得したRSSIを並べ替え、上位10%~上位30%の範囲に含まれるRSSIを抽出することにより、抽出されたRSSIの時間変動が小さくなる。これにより、RSSIに基づく処理をより確実に実施することが可能である。また、情報処理装置10は、処理に求められる条件(例えばリアルタイム性や正確性)に応じて、抽出するRSSIの選択数や選択方法、および抽出対象の測定数等を変更することができる。これにより、適用対象の求める仕様に合わせてRSSIを用いることが可能となる。
(1)
電波の測定結果を取得する取得部と、
前記取得部が取得した複数の測定結果のうち、上位10%~上位30%の範囲に含まれる強度を示す測定結果を抽出する抽出部と、
前記抽出部が抽出した測定結果を用いて所定の処理を行う処理部と、
を備える情報処理装置。
(2)
前記抽出部は、上位15%~上位25%の範囲に含まれる強度を示す測定結果を抽出する、前記(1)に記載の情報処理装置。
(3)
前記抽出部は、前記範囲内の所定の順位の強度を示す測定結果を抽出する、前記(1)または(2)に記載の情報処理装置。
(4)
前記情報処理装置は、前記取得部が取得した複数の測定結果の示す強度を数値順に並べ替え、順位ごとに前記強度を格納する記憶部をさらに備え、
前記抽出部は、前記記憶部に前記順位ごとに格納された複数の前記強度の分布に基づいて抽出する測定結果を決定する、前記(1)または(2)に記載の情報処理装置。
(5)
前記抽出部は、前記分布の標準偏差を用いて抽出する測定結果を決定する、前記(4)に記載の情報処理装置。
(6)
前記抽出部は、第1の時点を含む期間における複数の測定結果のうち、前記範囲内の強度を示す測定結果を抽出し、
前記処理部は、前記抽出部が抽出した測定結果を用いて前記所定の処理を第1の時点と関連付けて行う、前記(1)~(5)のいずれか1項に記載の情報処理装置。
(7)
前記抽出部は、前記範囲内の強度を示す測定結果から複数の測定結果を抽出する、前記(1)~(6)のいずれか1項に記載の情報処理装置。
(8)
前記電波は通信装置から送信され、
前記所定の処理は、前記通信装置と前記電波の測定位置との間の通信距離について判定を行う処理を含む、前記(1)~(7)のいずれか1項に記載の情報処理装置。
(9)
前記通信装置は、第1の通信装置、および物品と関連付けられた第2の通信装置を含み、
前記処理部は、
前記第1の通信装置と前記第1の通信装置から送信された電波の測定位置との間の第1の通信距離、および、前記第2の通信装置と前記第2の通信装置から送信された電波の測定位置との間の第2の通信距離について判定し、
前記判定結果に応じて前記物品に関する処理を行う、前記(8)に記載の情報処理装置。
(10)
前記処理部は、第2の通信距離の変動量が連続して所定の範囲内であるか否かを判定する、前記(9)に記載の情報処理装置。
(11)
電波の測定結果を取得するステップと、
取得した複数の測定結果のうち、上位10%~上位30%の範囲に含まれる強度を示す測定結果を抽出するステップと
抽出した測定結果を用いて所定の処理を行うステップと、
を有する、情報処理装置において実行される情報処理方法。
(12)
コンピュータを、
電波の測定結果を取得する取得部と、
前記取得部が取得した複数の測定結果のうち、上位10%~上位30%の範囲に含まれる強度を示す測定結果を抽出する抽出部と、
前記抽出部が抽出した測定結果を用いて所定の処理を行う処理部と、
として機能させるためのプログラム。
(13)
電波の測定結果を取得する取得部と、
前記取得部が取得した複数の測定結果のうち、上位10%~上位30%の範囲に含まれる強度を示す測定結果を抽出する抽出部と、
前記抽出部が抽出した測定結果を用いて所定の処理を行う処理部と、
を備える、情報処理システム。
10 情報処理装置
20 通信端末
30 ゲート
31 ゲートビーコン
32 認証ビーコン
100 通信部
110 記憶部
120 抽出部
130 処理部
Claims (13)
- 電波の測定結果を取得する取得部と、
前記取得部が取得した複数の測定結果のうち、上位10%~上位30%の範囲に含まれる強度を示す測定結果を抽出する抽出部と、
前記抽出部が抽出した測定結果を用いて所定の処理を行う処理部と、
を備える情報処理装置。 - 前記抽出部は、上位15%~上位25%の範囲に含まれる強度を示す測定結果を抽出する、請求項1に記載の情報処理装置。
- 前記抽出部は、前記範囲内の所定の順位の強度を示す測定結果を抽出する、請求項1に記載の情報処理装置。
- 前記情報処理装置は、前記取得部が取得した複数の測定結果の示す強度を数値順に並べ替え、順位ごとに前記強度を格納する記憶部をさらに備え、
前記抽出部は、前記記憶部に前記順位ごとに格納された複数の前記強度の分布に基づいて抽出する測定結果を決定する、請求項1に記載の情報処理装置。 - 前記抽出部は、前記分布の標準偏差を用いて抽出する測定結果を決定する、請求項4に記載の情報処理装置。
- 前記抽出部は、第1の時点を含む期間における複数の測定結果のうち、前記範囲内の強度を示す測定結果を抽出し、
前記処理部は、前記抽出部が抽出した測定結果を用いて前記所定の処理を第1の時点と関連付けて行う、請求項1に記載の情報処理装置。 - 前記抽出部は、前記範囲内の強度を示す測定結果から複数の測定結果を抽出する、請求項1に記載の情報処理装置。
- 前記電波は通信装置から送信され、
前記所定の処理は、前記通信装置と前記電波の測定位置との間の通信距離について判定を行う処理を含む、請求項1に記載の情報処理装置。 - 前記通信装置は、第1の通信装置、および物品と関連付けられた第2の通信装置を含み、
前記処理部は、
前記第1の通信装置と前記第1の通信装置から送信された電波の測定位置との間の第1の通信距離、および、前記第2の通信装置と前記第2の通信装置から送信された電波の測定位置との間の第2の通信距離について判定し、
前記判定結果に応じて前記物品に関する処理を行う、請求項8に記載の情報処理装置。 - 前記処理部は、第2の通信距離の変動量が連続して所定の範囲内であるか否かを判定する、請求項9に記載の情報処理装置。
- 電波の測定結果を取得することと、
取得した複数の測定結果のうち、上位10%~上位30%の範囲に含まれる強度を示す測定結果を抽出することと
抽出した測定結果を用いて所定の処理を行うことと、
を有する、情報処理装置において実行される情報処理方法。 - コンピュータを、
電波の測定結果を取得する取得部と、
前記取得部が取得した複数の測定結果のうち、上位10%~上位30%の範囲に含まれる強度を示す測定結果を抽出する抽出部と、
前記抽出部が抽出した測定結果を用いて所定の処理を行う処理部と、
として機能させるためのプログラム。 - 電波の測定結果を取得する取得部と、
前記取得部が取得した複数の測定結果のうち、上位10%~上位30%の範囲に含まれる強度を示す測定結果を抽出する抽出部と、
前記抽出部が抽出した測定結果を用いて所定の処理を行う処理部と、
を備える、情報処理システム。
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