JP6264937B2 - COMMUNICATION DEVICE, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD - Google Patents

Description

  The present invention relates to a communication device, a communication system, and a communication method.

  One of the standards for short-range wireless communication technology between devices is Bluetooth (registered trademark). The Bluetooth 4.0 standard defines a technique for detecting a peripheral by broadcasting data from a communication terminal called a peripheral and receiving the data at a communication terminal called a central in a phase called advertisement.

  Such a technology can be used without a pairing between a wireless communication terminal corresponding to a peripheral (hereinafter sometimes referred to as a “beacon”) and an information processing device such as a smartphone corresponding to a central, Data can be distributed from the beacon to the information processing apparatus.

JP 2007-13577 A

  On the other hand, as described above, in a system that distributes information by broadcasting, it is assumed that a beacon that broadcasts a malicious program is illegally installed. Therefore, there is a need for a security mechanism in which the information processing apparatus confirms the validity of the transmission source and can selectively receive only information broadcast from the transmission source for which the validity is confirmed. .

  However, when information is broadcast, it is one-way communication, so it is difficult to ensure security by applying an advanced algorithm such as two-way communication.

  On the other hand, for the purpose of ensuring security, for example, a method of performing mutual authentication between a beacon and an information processing apparatus by a procedure such as pairing, that is, confirming the legitimacy of a transmission source based on two-way communication A method is conceivable. However, in this case, since mutual authentication is required for each beacon, the user's procedure for acquiring data from the beacon becomes complicated, and there is a possibility that the service quality is deteriorated.

  Therefore, the present invention has been made in view of the above problems, and an object of the present invention is a new and improved technique capable of ensuring security in a simple procedure even in one-way wireless communication. A communication device, a communication system, and a communication method are provided.

  In order to solve the above-described problem, according to an aspect of the present invention, a pattern for associating a plurality of types of unit data having different values with each other in a predetermined position for each type is included. An external terminal transmits a plurality of types of unit data at the position associated with the type of the unit data based on the acquired pattern information and a pattern information acquisition unit that acquires information. There is provided a communication device comprising a communication data generation unit that generates communication data for determining the validity of the communication data.

  At least one of the plurality of types of unit data may be actual data notified to the external terminal.

  The actual data may be identification information for identifying a transmission source.

  At least one of the plurality of types of unit data may be dummy data.

  The pattern information acquisition unit may acquire any of a plurality of different pattern information.

  The position indicates an order in time series, and the communication data generation unit arranges the communication data by arranging each of the plurality of types of unit data in time series based on the acquired pattern information. The generated communication data may be transmitted in a time division manner for each predetermined unit.

  The position may indicate a position in a data structure of the communication data.

  You may provide the transmission part which transmits the said communication data to the one or more said external terminal which exists in the predetermined communication area.

  In order to solve the above problem, according to another aspect of the present invention, the unit corresponding to each of the types in the communication data including a plurality of unit data of a plurality of types having different values from each other. A pattern information acquisition unit that acquires pattern information indicating a position associated with data, a communication data acquisition unit that acquires the communication data transmitted from an external terminal, and each of the types based on the acquired pattern information The unit data is extracted from each of a plurality of positions associated with the type in the communication data, and the plurality of unit data extracted for each type are compared with each other, thereby validating the external terminal. There is provided a communication device comprising: a determination unit that determines sex.

  The determination unit may determine that the external terminal is valid for each of the types when a plurality of the unit data extracted for each type match.

  The pattern information acquisition unit acquires a plurality of pattern information, and the determination unit performs the comparison for each of the acquired pattern information, and based on at least one of the plurality of pattern information For each of the types, when the plurality of unit data extracted for each type match, the external terminal may be determined to be valid.

  At least one of the plurality of types of unit data is actual data notified from the external terminal, and the pattern information indicates a position associated with the actual data in the communication data. When the determination unit determines that the external terminal is valid based on the pattern information, the determination unit may extract the actual data from the position where the actual data in the communication data is associated with the pattern information. Good.

  The communication data acquisition unit acquires the communication data generated based on at least one of the plurality of pattern information from each of a plurality of different external terminals, and the determination unit acquires the plurality of acquired communication For each of the data, the comparison is performed for each of the acquired plurality of pattern information, and each of the plurality of communication data is based on at least one of the plurality of pattern information, for each of the types, When the plurality of unit data extracted for each type match, each of the plurality of external terminals may be determined to be valid.

  The communication data acquired from each of the external terminals may be generated based on different pattern information among the plurality of pattern information.

  Among the communication data acquired from each of the external terminals, at least one of the plurality of types of unit data included in at least one of the communication data is actual data notified from the external terminal, The pattern information corresponding to the communication data including actual data indicates a position associated with the actual data in the communication data, and the determination unit transmits a transmission source for each of the plurality of communication data. When it is determined that the external terminal is valid, the actual data may be extracted from the communication data based on the pattern information corresponding to the communication data including the actual data.

  The pattern information acquisition unit may acquire the pattern information from an external terminal different from the transmission source of the communication data.

  In order to solve the above problems, according to another aspect of the present invention, a communication system including a transmission device that transmits communication data and a reception device that receives the communication data transmitted from the transmission device. The transmitting apparatus obtains pattern information for associating with a predetermined position for each type so that a plurality of types of unit data having different values are included. An information acquisition unit, and a communication data generation unit that generates the communication data by arranging the plurality of types of unit data at the position associated with the type of the unit data based on the acquired pattern information. The receiving device includes a second pattern information acquisition unit that acquires the pattern information, and the type based on the acquired pattern information. For each, the unit data is extracted from each of a plurality of positions associated with the type in the communication data, and the plurality of unit data extracted for each type is compared with each other, thereby There is provided a communication system including a determination unit that determines validity.

  In order to solve the above problem, according to another aspect of the present invention, a plurality of types of unit data having different values are associated with a predetermined position for each type so as to include a plurality of unit data. And acquiring each of the plurality of types of unit data at the position associated with the type of the unit data based on the acquired pattern information. Generating communication data for determining the legitimacy of the communication method is provided.

  In order to solve the above problem, according to another aspect of the present invention, the unit corresponding to each of the types in the communication data including a plurality of unit data of a plurality of types having different values from each other. Obtaining pattern information indicating a position to which data is associated, a communication data obtaining unit that obtains the communication data transmitted from an external terminal, and for each of the types based on the obtained pattern information, The unit data is extracted from each of a plurality of positions associated with the type in communication data, and the validity of the external terminal is determined by comparing the extracted unit data with each other for each type. And a communication method is provided.

  As described above, according to the present invention, there are provided a new and improved communication device, communication system, and communication method capable of ensuring security in a simple procedure even in one-way wireless communication.

It is explanatory drawing for demonstrating the schematic system configuration | structure of the communication system which concerns on the 1st Embodiment of this invention. It is an example of the hardware constitutions of a communication terminal and an information processing apparatus. It is the block diagram which showed an example of the function structure of the communication terminal and information processing apparatus which concern on the embodiment. It is explanatory drawing for demonstrating an example of the pattern information which concerns on the embodiment. FIG. 6 is an explanatory diagram for explaining an operation of the communication system according to the embodiment. FIG. 6 is an explanatory diagram for explaining an operation of the communication system according to the embodiment. It is explanatory drawing for demonstrating the communication system which concerns on the 2nd Embodiment of this invention. It is explanatory drawing for demonstrating an example of the pattern information which concerns on the embodiment. It is explanatory drawing for demonstrating the communication system which concerns on the 3rd Embodiment of this invention. It is explanatory drawing for demonstrating an example of the communication data based on the pattern information which concerns on the embodiment. It is explanatory drawing for demonstrating the communication system which concerns on the 4th Embodiment of this invention. It is explanatory drawing for demonstrating the application example of the communication system which concerns on the same embodiment. It is explanatory drawing for demonstrating another example of the communication system which concerns on the embodiment. It is explanatory drawing for demonstrating the outline | summary of the communication system which concerns on the 5th Embodiment of this invention. FIG. 3 is an explanatory diagram for explaining a schematic functional configuration of a communication system according to the embodiment.

  Exemplary embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In addition, in this specification and drawing, about the component which has the substantially same function structure, the duplicate description is abbreviate | omitted by attaching | subjecting the same code | symbol.

<1. First Embodiment>
[1.1. System configuration]
First, a schematic system configuration of a communication system according to the first embodiment of the present invention will be described with reference to FIG. FIG. 1 is an explanatory diagram for explaining a schematic system configuration of a communication system according to the present embodiment.

  As shown in FIG. 1, the communication system according to the present embodiment includes a communication terminal 10, an information processing device 30, and a server 50.

  The communication terminal 10 and the information processing apparatus 30 are connected via a network n1. The network n1 is, for example, a wireless transmission path for connecting different devices, and a specific example is a wireless communication network based on the Bluetooth (registered trademark) standard.

  The communication terminal 10 is configured to be able to transmit data via one or more information processing devices 30 existing in a predetermined communication area and the network n1, and is connected to the information processing device 30 in the communication terminal 10 Broadcast data stored in advance. A specific example of the communication terminal 10 is a beacon.

  The information processing apparatus 30 is configured to be able to communicate with the communication terminal 10 within a predetermined communication area corresponding to the communication terminal 10, and receives data broadcast from the communication terminal 10.

  Further, the information processing apparatus 30 is configured to be able to access the network n2 via the base station apparatus 70 and connect to the server 50 via the network n2, for example. The network n2 can be configured by, for example, a public line network such as the Internet, a telephone line network, a satellite communication network, various LANs (Local Area Network) including Ethernet (registered trademark), a WAN (Wide Area Network), and the like.

  For example, in the example illustrated in FIG. 1, the communication terminal 10 broadcasts unique data to the information processing apparatus 30 via the network n1. When receiving the unique data from the communication terminal 10, the information processing apparatus 30 accesses the server 50 via the network n2, for example, and notifies the server 50 of the unique data received from the communication terminal 10. The server 50 stores the specific data and specific information in association with each other in advance, and transmits the specific information associated with the specific data to the information processing apparatus 30 that has transmitted the specific data. Therefore, for example, the unique data may be information unique to each communication terminal 10, that is, identification information for identifying each communication terminal 10.

  By configuring the communication system in this manner, specific information (for example, a discount such as a coupon) is received only for the information processing device 30 of the user who has visited the communication area of the communication terminal 10. It is possible to distribute information that serves as an intermediary for this purpose. Note that the communication standard for performing wireless communication between the communication terminal 10 and the information processing apparatus 30 is not particularly limited as long as the communication terminal 10 can broadcast information to the information processing apparatus 30 in the communication area. . For example, if a communication method in which the communicable area is relatively narrow, such as Bluetooth (registered trademark), is selected, the area in which the user can acquire specific information from the server 50 can be further limited.

  On the other hand, it is assumed that a beacon that broadcasts a malicious program is illegally installed as the communication terminal 10. In such a case, when the information processing apparatus 30 can receive information broadcast from the communication terminal 10 without restriction, a malicious program distributed from the communication terminal 10 installed illegally is The information may be stored in the information processing apparatus 30.

  In contrast, the communication system according to the present embodiment provides a security mechanism for confirming the validity of the communication terminal 10 that is the transmission source of the broadcast data on the information processing apparatus 30 side. With such a configuration, in the communication system according to the present embodiment, the information processing apparatus 30 can selectively receive only information from the communication terminal 10 whose validity has been confirmed. Therefore, hereinafter, the communication system according to the present embodiment will be described in more detail with a focus on the configuration related to communication between the communication terminal 10 and the information processing apparatus 30.

[1.2. Hardware configuration]
First, with reference to FIG. 2, an example of a hardware configuration of the communication terminal 10 and the information processing device 30 in the communication system according to the present embodiment, particularly related to communication between the communication terminal 10 and the information processing device 30. The description will be given focusing on the configuration. FIG. 2 is a diagram illustrating an example of a hardware configuration of the communication terminal 10 and the information processing apparatus 30.

  As illustrated in FIG. 2, the communication terminal 10 includes a processor 911, a communication device 913, and a storage device 915.

  The processor 911 may be, for example, a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), a DSP (Digital Signal Processor), or a SoC (System on Chip), and executes various processes of the communication terminal 10. The processor 911 can be configured by, for example, an electronic circuit for executing various arithmetic processes.

  The communication device 913 is a communication unit included in the communication terminal 10 and communicates with an external apparatus such as the information processing apparatus 30 via the network n1. The communication device 913 is an interface for wireless communication, and may include a communication antenna, an RF (Radio Frequency) circuit, a baseband processor, and the like. The communication device 913 may be a communication device capable of establishing wireless communication with one or more information processing apparatuses 30 existing in a predetermined communication area such as Bluetooth (registered trademark). .

  The storage device 915 is a device for storing various data in a nonvolatile manner. The storage device 915 stores, for example, unique data to be distributed to the information processing apparatus 30 and pattern information for transmitting the unique data as communication data. The storage device 915 may include a storage medium such as a semiconductor memory or a hard disk. Details of the pattern information will be separately described later together with the functional configurations of the communication terminal 10 and the information processing apparatus 30.

  The processor 911, the communication device 913, and the storage device 915 are connected to each other via a bus 917.

  Next, the information processing apparatus 30 will be described. The information processing apparatus 30 includes a processor 931, a communication device 933, a storage device 935, and a RAM (Random Access Memory) 937.

  The processor 931 may be, for example, a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), a DSP (Digital Signal Processor), or a SoC (System on Chip), and executes various processes of the information processing apparatus 30. The processor 931 can be configured by an electronic circuit for executing various arithmetic processes, for example.

  The communication device 933 is a communication unit included in the information processing apparatus 30 and communicates with an external device such as the communication terminal 10 via the network n1. For example, the communication device 933 can have the same configuration as the communication device 913 provided in the communication terminal 10. The communication device 933 may be configured to be able to communicate with an external device (for example, the server 50 in FIG. 1) via a network such as the Internet (for example, the network n2 in FIG. 1).

  The storage device 935 is a device for storing various data in a nonvolatile manner. For example, pattern information for extracting unique data from communication data distributed from the communication terminal 10 is stored in the storage device 935. The storage device 935 may include a storage medium such as a semiconductor memory or a hard disk. Details of the pattern information will be separately described later together with the functional configurations of the communication terminal 10 and the information processing apparatus 30.

  The RAM 937 is a device for temporarily storing programs used in the execution of the CPU 931, parameters that change as appropriate during the execution, and the like. In particular, the RAM 937 according to the present embodiment is used as a storage area for storing communication data distributed from the communication terminal 10 and unique data extracted from the communication data. It goes without saying that other storage devices may be used instead of the RAM 937.

  The processor 931, the communication device 933, the storage device 935, and the RAM 937 are connected to each other via a bus 939.

  The example of the hardware configuration of the communication terminal 10 and the information processing apparatus 30 according to the present embodiment has been described above with reference to FIG. Note that the hardware configuration described above is merely an example of a hardware configuration that focuses on communication between the communication terminal 10 and the information processing apparatus 30 and may include a device for implementing other functions. Needless to say.

[1.3. Functional configuration]
Next, functional configurations of the communication terminal 10 and the information processing apparatus 30 according to the present embodiment will be described with reference to FIG. FIG. 3 is a block diagram illustrating an example of functional configurations of the communication terminal 10 and the information processing apparatus 30 according to the present embodiment.

  First, attention is focused on the communication terminal 10. As illustrated in FIG. 3, the communication terminal 10 according to the present embodiment includes an information processing unit 11, a communication unit 13, a pattern information storage unit 15, and a unique data storage unit 17. The information processing unit 11 includes a pattern information acquisition unit 111 and a communication data generation unit 113.

  The communication unit 13 is an interface for the communication terminal 10 to communicate with the information processing apparatus 30. In particular, the communication unit 13 according to the present embodiment is configured to be able to broadcast data wirelessly to the information processing apparatus 30 existing in a predetermined communication area. The communication unit 13 can be configured by, for example, the communication device 913 illustrated in FIG.

  In the following, when each component in the communication terminal 10 transmits / receives data to / from an external device such as the information processing device 30, the data is transmitted via the communication unit 13 even when there is no particular description. It is assumed that transmission / reception is performed. Further, hereinafter, data transmitted from the communication terminal 10 to the information processing apparatus 30 may be referred to as “communication data”.

  The unique data storage unit 17 stores in advance actual data that the communication terminal 10 transmits (for example, broadcasts) to the information processing apparatus 30. The actual data to be transmitted stored in the unique data storage unit 17 corresponds to the unique data described above. Hereinafter, the actual data may be described as “unique data”. For example, as shown in FIG. 3, the unique data storage unit 17 according to the present embodiment stores “data A”, “data B”, and “data C” in advance as unique data to be transmitted. Hereinafter, “data A”, “data B”, and “data C” may be simply referred to as data “A”, “B”, and “C”.

  The pattern information storage unit 15 stores in advance pattern information d10 indicating rules for the information processing unit 11 to be described later to generate communication data based on the unique data stored in the unique data storage unit 17. Yes.

  Here, the pattern information d10 according to the present embodiment will be described with reference to FIG. FIG. 4 is an explanatory diagram for describing an example of the pattern information d10 according to the present embodiment.

  As shown in FIG. 4, the pattern information d10 indicates the relationship between the type d13 of data to be transmitted and the transmission order d11 of the data along the time series, that is, which type d13 of data is in which order. Indicates whether to send. For example, in the example shown in FIG. 4, “I”, “II”, and “III” are defined as the data type d13. FIG. 4 shows an example in which three types “I” to “III” are defined as the data type d13. However, the number of types to be defined may be plural (that is, two or more). If it does not specifically limit. Here, different types of data mean data whose comparison results do not match when they are compared with each other, for example, data with different contents (values).

  Further, the pattern information d10 is defined so as to include at least a plurality of each type of data indicated by the data type d13. For example, in the example illustrated in FIG. 4, the pattern information d10 is defined so that two of each of the types “I” to “III” are included. If the pattern information d10 is defined so that a plurality of types are included (that is, two or more), the number is not particularly limited, and the number included for each type is not necessarily the same. Absent.

  Further, the various types shown in the data type d13 are associated with different unique data among the data “A”, “B”, and “C” that are unique data. For example, in the example illustrated in FIG. 4, the type “I” and the unique data “A” are associated with each other. Similarly, type “II” and unique data “B” are associated with each other, and type “III” and unique data “C” are associated with each other.

  That is, the pattern information d10 shown in FIG. 4 arranges the unique data “A” to “C” in the order of “A”, “B”, “C”, “B”, “A”, “C”. This indicates that communication data is generated.

  The pattern information storage unit 15 and the unique data storage unit 17 may be configured by the storage device 915 illustrated in FIG. The pattern information storage unit 15 and the unique data storage unit 17 may be realized by different storage devices, or may be realized by logically dividing one storage device into a plurality of areas.

  Here, the pattern information acquisition unit 111 and the communication data generation unit 113 will be described with reference to FIG. 3 again.

  The pattern information acquisition unit 111 reads the pattern information d10 stored in the pattern information storage unit 15 and outputs the read pattern information d10 to the communication data generation unit 113.

  The communication data generation unit 113 reads the unique data stored in the unique data storage unit 17, that is, the data “A”, “B”, and “C”. Further, the communication data generation unit 113 acquires the pattern information d10 from the pattern information acquisition unit 111.

  The communication data generation unit 113 generates communication data by arranging the read unique data based on the acquired pattern information d10. The generated communication data is transmitted (for example, broadcast) by the communication unit 13 toward the information processing device 30 existing in the communication area. Note that the information processing unit 11 (that is, the pattern information acquisition unit 111 and the communication data generation unit 113) may be configured by, for example, the processor 911 illustrated in FIG.

  Next, attention is paid to the information processing apparatus 30. As shown in FIG. 3, the information processing apparatus 30 according to the present embodiment includes an information processing unit 31, a communication unit 33, a pattern information storage unit 35, an accumulated data holding unit 37, and a received data holding unit 39. Including. In addition, the information processing unit 31 includes a communication data acquisition unit 311 and a determination unit 313.

  The communication unit 33 is an interface for the information processing apparatus 30 to communicate with the communication terminal 10. In particular, the communication unit 33 according to the present embodiment is configured to be able to receive communication data transmitted from the communication terminal 10. The communication unit 33 may be configured by, for example, the communication device 933 illustrated in FIG.

  Hereinafter, when each component in the information processing device 30 transmits and receives data to and from an external device such as the communication terminal 10, the data is transmitted via the communication unit 33 even if there is no particular description. It is assumed that transmission / reception is performed.

  The pattern information storage unit 35 stores in advance pattern information similar to the pattern information d10 stored in the pattern information storage unit 15 described above. The pattern information d10 only needs to be stored in the pattern information storage unit 35 before the information processing apparatus 30 communicates with the communication terminal 10, and the pattern information d10 is stored in the pattern information storage unit 35. The method of storing is not particularly limited. As a specific example, when the user of the information processing device 30 installs an application for acquiring unique data from the communication terminal 10 in the information processing device 30, the pattern information is stored in the pattern information storage unit 35 of the information processing device 30. d10 may be stored.

  The communication data acquisition unit 311 acquires communication data transmitted from the communication terminal 10 and received by the communication unit 33, and stores the acquired communication data in the accumulated data holding unit 37.

  The accumulated data holding unit 37 is a holding unit for temporarily holding communication data transmitted from the communication terminal 10. That is, the accumulated data holding unit 37 stores the unique data arranged based on the pattern information d10 as accumulated data d20 so that the order is maintained.

  When the accumulated data d20 is held in the accumulated data holding unit 37, the determination unit 313 reads the communication data held in the accumulated data holding unit 37 as the accumulated data d20. The determination unit 313 reads the pattern information d10 stored in the pattern information storage unit 35.

  Based on the read pattern information d10, the determination unit 313 determines, for each data type d13 defined by the pattern information d10, unit data (that is, order) from each position (order) in the communication data associated with the data type d13. (Proprietary data). Then, the determination unit 313 compares a plurality of unit data extracted for each data type d13.

  The determination unit 313 determines that the communication terminal 10 that is the transmission source of the communication data is a valid transmission source when the comparison results match for each of the data types d13 defined by the pattern information d10. When determining that the transmission source of the communication data is a valid transmission source, the determination unit 313 specifies the position of the specific data in the communication data based on the pattern information d10, and the specific data is determined from the specified position. Extract. Then, the determination unit 313 causes the received data holding unit 39 to hold the extracted unique data.

  The reception data holding unit 39 is a holding unit for holding unique data transmitted from the communication terminal 10. The unique data held in the received data holding unit 39 is used, for example, for the information processing apparatus 30 to access the server 50 and acquire specific information associated with the unique data from the server 50. .

  Each piece of data held in the accumulated data holding unit 37 and the received data holding unit 39 may be discarded (for example, deleted) after the processing based on the data is completed. Specifically, the communication data held in the accumulated data holding unit 37 may be discarded if the determination unit 313 has completed extraction of unique data from the communication data. In addition, the unique data stored in the received data holding unit 39 may be discarded, for example, after completion of processing related to acquisition of specific information associated with the unique data from the server 50. Needless to say, the subject that discards the data held in the stored data holding unit 37 and the received data holding unit 39 is not particularly limited.

[1.4. Specific processing flow]
Here, with reference to FIG. 5, the operations of the communication terminal 10 and the information processing apparatus 30 according to the present embodiment will be described in more detail with specific examples. FIG. 5 is an explanatory diagram for explaining the operation of the communication system according to the present embodiment.

  As shown in FIG. 5, in the communication terminal 10, unique data to be transmitted, that is, “data A”, “data B”, “data C”, and pattern information d10 are stored in advance.

  Further, in the information processing device 30, for example, an application for acquiring unique data from the communication terminal 10 is installed in the information processing device 30, so that the same information as the pattern information d10 stored in the communication terminal 10 is obtained. Pattern information is stored.

  The information processing unit 11 of the communication terminal 10 extracts the data “A”, “B”, and “C” stored in the unique data storage unit 17 and the pattern information d10 stored in the pattern information storage unit 15. .

  Then, the information processing unit 11 generates communication data by arranging the extracted data “A”, “B”, and “C” in the order defined by the pattern information d10. For example, when the pattern information d10 illustrated in FIG. 4 is used, the information processing unit 11 converts the unique data “A” to “C” into “A”, “B”, “C”, “B”, Communication data is generated by arranging "A" and "C" in this order.

  The information processing unit 11 transmits the generated communication data to the information processing device 30 existing in a predetermined communication area via the communication unit 13. In the example shown in FIG. 5, the communication unit 13 arranges the unique data constituting the communication data in the order in which they are arranged, that is, “A”, “B”, “C”, “B”, “A”. , Based on the order of “C”, the information is transmitted to the information processing apparatus 30 in a time division manner.

  Note that the communication unit 13 may transmit a pilot signal indicating the head of the communication data immediately before transmitting each unique data constituting the communication data. Thereby, the information processing apparatus 30 that has received the communication data can recognize the head of the communication data based on the pilot signal.

  The information processing apparatus 30 acquires the communication data transmitted from the communication terminal 10 via the communication unit 33. The information processing unit 31 stores each unit data (in other words, unique data) constituting the acquired communication data as accumulated data d20 so as to identify the order of the unit data in the communication data. 37.

  For example, in the example shown in FIG. 5, the information processing section 31 converts each unit data as “A”, “B”, “C”, “B”, “A”, “C” as communication data. In time order. The information processing unit 31 holds stored data as stored data d20 in the order in which each unit data is acquired, that is, in the order of “A”, “B”, “C”, “B”, “A”, “C”. The part 37 is held.

  When the communication data transmitted from the communication terminal 10 is held as the accumulated data d20 in the accumulated data holding unit 37, the information processing unit 31 (specifically, the determining unit 313 shown in FIG. 3) The pattern information d10 is read from 35. The information processing unit 31 then, for each data type d13 defined by the pattern information d10 based on the read pattern information d10, in communication data (in other words, accumulated data d20) associated with the data type d13. Unit data (that is, unique data) is extracted from each position (order). Then, the information processing section 31 compares a plurality of unit data extracted for each data type d13.

  For example, based on the pattern information d10 shown in FIG. 4, the information processing unit 31 sets unit data arranged at positions in the communication data associated with the type “I” for the type “I”, that is, the first and The fifth unit data arranged is extracted from the accumulated data d20 (in other words, the communication data). Similarly, for the type “II”, the determination unit 313 extracts the second and fourth unit data arranged in the communication data from the accumulated data d20. Further, for the type “III”, the determination unit 313 extracts the third and sixth unit data arranged in the communication data from the accumulated data d20.

  At this time, when the acquired communication data is generated based on the same pattern information as the pattern information d10 read from the pattern information storage unit 35, the comparison result is obtained for each of the types “I” to “III”. Will match. That is, the information processing unit 31 determines that the communication terminal 10 that is the transmission source of the acquired communication data is a valid transmission source when the comparison results match for each of the types “I” to “III”. .

  When determining that the transmission source of the communication data is a legitimate transmission source, the information processing unit 31 specifies the position of the specific data in the communication data based on the pattern information d10, and the specific data is determined from the specified position. To extract. Then, the information processing unit 31 causes the received data holding unit 39 to hold the extracted unique data. For example, in the case of the example illustrated in FIG. 5, the information processing unit 31 extracts unique data “A” to “C” that constitute communication data, and receives the extracted unique data “A” to “C”. The data is held in the data holding unit 39.

  Next, the operation of the information processing apparatus 30 when the pattern information that is the generation source of the communication data is different from the pattern information stored in advance by the information processing apparatus 30 will be described with reference to FIG. FIG. 6 is an explanatory diagram for explaining the operation of the communication system according to the present embodiment.

  For example, in the example illustrated in FIG. 6, the information processing apparatus 30 uses the unique data “A” to “C” as communication data as unit data, and “A”, “B”, “C”, “A”, Assume that the signals are received in time division in the order of “B” and “C”. Note that the information processing apparatus 30 stores the same pattern information d10 as in FIG.

  The information processing unit 31 stores the stored data in the order in which the unit data acquired as communication data is acquired, that is, in the order of “A”, “B”, “C”, “A”, “B”, “C”. The accumulated data holding unit 37 holds it as d22.

  When the received communication data is held in the accumulated data holding unit 37 as accumulated data d22, the information processing unit 31 reads the pattern information d10 from the pattern information storage unit 35. Then, the information processing unit 31 uses the unit data from each position (order) in the communication data (in other words, the accumulated data d22) associated with the data type d13 for each data type d13 based on the read pattern information d10. (Ie, unique data) is extracted. Then, the information processing section 31 compares a plurality of unit data extracted for each data type d13.

  For example, based on the pattern information d10, the information processing section 31 extracts the unit data arranged first and fifth from the accumulated data d22 for the type “I”, and compares the extracted unit data. At this time, the data “A” is extracted from the first, and the data “B” is extracted from the fifth. Therefore, the comparison results regarding the type “I” are inconsistent.

  Similarly, for the type “II”, the information processing section 31 extracts the second and fourth unit data arranged from the accumulated data d22 and compares the extracted unit data. At this time, the data “B” is extracted from the second, and the data “A” is extracted from the fourth, so that the comparison results regarding the type “II” do not match.

  In addition, for the type “III”, the information processing section 31 extracts the third and sixth unit data arranged from the accumulated data d22 and compares the extracted unit data. At this time, data “C” is extracted from the third, and data “C” is extracted from the sixth, so that the comparison results regarding the type “III” are the same.

  As described above, when the comparison result does not match for at least one of the plurality of data types d13 defined by the pattern information d10, the received communication data is different from the pattern information d10. It is generated based on the pattern information. That is, it can be seen that the transmission source of the communication data does not hold at least the pattern information d10 stored in the information processing apparatus 30.

  Therefore, when the comparison result does not match for at least one of the data types d13, the information processing unit 31 determines that the transmission source of the communication data is an illegal transmission source, and extracts unique data from the communication data. Do not do.

  Based on the configuration as described above, the information processing apparatus 30 according to the present embodiment compares the unit data in the acquired communication data based on the pattern information d10, and based on the comparison result, the transmission source of the communication data is Whether the same pattern information d10 as that of itself is held can be identified. Thereby, for example, the information processing apparatus 30 recognizes a transmission source holding the same pattern information d10 as itself as a valid transmission source, and extracts unique data only from communication data from the transmission source recognized as valid. Is possible.

  Therefore, for example, even if a beacon that broadcasts a malicious program is illegally installed, as long as the pattern information that is the source of communication data is different from the pattern information d10 stored in the information processing apparatus 30, the information processing apparatus 30 can recognize the beacon as an unauthorized transmission source.

  In the above description, a case where a wireless communication network based on the Bluetooth (registered trademark) standard is applied as communication between the communication terminal 10 and the information processing apparatus 30 has been described as an example. However, as long as data can be broadcast from the communication terminal 10 to the information processing device 30, it goes without saying that the applied communication standard and the type of network are not particularly limited.

  In the above description, the communication data is generated by arranging unit data corresponding to each type based on the pattern information d10. However, if the unit data for each type can be extracted based on the pattern information d10. The mode of communication data is not particularly limited. For example, the pattern information d10 may associate various types with positions in the data structure of communication data. In this case, the information processing apparatus 30 may analyze the data structure of the received communication data and extract unit data corresponding to the type from the position in the communication data corresponding to each type based on the pattern information d10. .

  Needless to say, if the position for each type in the communication data is maintained, the communication terminal 10 does not necessarily need to transmit the communication data in time division for each unit data. Even when communication data is transmitted in time division for each unit data, if the information processing device 30 can recognize the transmission order of the unit data, the information processing device 30 does not necessarily transmit the unit data in the transmission order. Needless to say, it does not have to be received.

  Further, in the present embodiment described above, the information processing apparatus 30 does not necessarily require user operation when confirming the validity of the transmission source based on the received communication data and the pattern information d10. It is clear from the configuration of the communication system. That is, according to the communication system according to the present embodiment, it is possible to ensure security with a simple procedure even in one-way wireless communication.

<2. Second Embodiment>
As described above, in the communication system according to the first embodiment, communication data is generated by arranging a plurality of unique data “A” to “C” having different types as unit data based on pattern information. It had been.

  On the other hand, based on the pattern information, the validity of the transmission source is confirmed depending on whether the comparison between the unit data extracted from the position in the communication data with which the type is associated is the same for each type. If possible, the content of each unit data is not particularly limited. Therefore, when attention is paid only to the comparison of the legitimacy of the transmission source, the unit data forming the communication data is not necessarily unique data. That is, at least a part of the plural types of unit data constituting the communication data may be replaced with dummy data different from the unique data to be transmitted. In the case where dummy data is used as in the communication system according to the present embodiment, the unique data and the dummy data correspond to unit data.

  Therefore, in the second embodiment, a case where a part of unit data among a plurality of types of unit data constituting communication data is configured as dummy data will be described with reference to FIG. FIG. 7 is an explanatory diagram for explaining the communication system according to the second embodiment.

  First, a description will be given focusing on the configuration of the communication terminal 10. As illustrated in FIG. 7, the communication terminal 10 according to the present embodiment stores only data “A” in the unique data storage unit 17 as unique data to be transmitted.

  The information processing unit 11 of the communication terminal 10 according to the present embodiment stores the data “A” and the dummy data “X” and “Y” having different types from the specific data in the pattern information storage unit 15 in advance. The communication data is generated by rearranging based on the pattern information d30.

  Here, the pattern information d30 according to the present embodiment will be described with reference to FIG. FIG. 8 is an explanatory diagram for describing an example of the pattern information d30 according to the present embodiment.

  As shown in FIG. 8, the pattern information d30 indicates the relationship between the type d33 of data to be transmitted and the transmission order d31 of the data along the time series, that is, the data of which type d33 is in which order. Indicates whether to send. This point is the same as the pattern information d10 (see FIG. 4) according to the first embodiment.

  On the other hand, in the pattern information d30, as indicated by the reference symbol d35, whether the data of each type d33 is valid data (ie, unique data) or invalid data (ie, dummy data). It is shown. In other words, the pattern information d30 indicates at which position (order) in the communication data valid data (that is, unique data) is arranged. Note that the content of the pattern information d30 is not particularly limited as long as the position of valid data can be recognized among the various types d33. For example, in the example shown in FIG. 7, additional information d301 indicating which type d33 corresponds to valid data is provided in the pattern information d30. With such a configuration, the communication terminal 10 and the information processing apparatus 30 can recognize the type d33 corresponding to valid data by referring to the additional information d301 in the pattern information d30.

  The communication terminal 10 according to the present embodiment will be described with reference to FIG. When the information processing unit 11 according to the present embodiment extracts the pattern information d30 from the pattern information storage unit 15, the information processing unit 11 specifies the type d33 corresponding to the dummy data based on the pattern information d30. Then, the information processing section 11 generates dummy data for the corresponding type d33. For example, in the case of the pattern information d30 shown in FIG. 8, the types “II” and “III” correspond to dummy data. Therefore, the information processing unit 11 generates different dummy data “X” and “Y” as dummy data corresponding to the types “II” and “III”.

  Note that the dummy data generated by the information processing unit 11 may be fixed data, or may be different data for each generation timing (for example, broadcast timing). When the dummy data is fixed data, the dummy data may be generated in advance and stored in a position where the information processing unit 11 can read the dummy data.

  When the dummy data is generated, the information processing unit 11 reads the unique data “A” to be transmitted from the unique data storage unit 17. The information processing unit 11 generates communication data by arranging the read unique data “A” and the generated dummy data “X” and “Y” as unit data based on the pattern information d30.

  Communication data generated by the information processing unit 11 is transmitted to the information processing apparatus 30 existing in a predetermined communication area via the communication unit 13.

  Next, a description will be given focusing on the configuration of the information processing apparatus 30. The pattern information storage unit 35 stores pattern information similar to the pattern information d30 stored in the communication terminal 10 in advance.

  The information processing apparatus 30 acquires the communication data transmitted from the communication terminal 10 via the communication unit 33. The information processing unit 31 stores each unit data (in other words, unique data) constituting the acquired communication data as accumulated data d20 so as to identify the order of the unit data in the communication data. 37.

  The information processing unit 31 extracts unit data from the accumulated data d20 for each type d33 based on the pattern information d30 stored in the pattern information storage unit 35, and compares the extracted unit data by comparing the extracted unit data. Determine the legitimacy of the sender. The operations so far are the same as those of the information processing apparatus 30 according to the first embodiment described above.

  When determining that the transmission source of the communication data is a valid transmission source, the information processing unit 31 specifies the position of the unique data in the accumulated data d20 (in other words, communication data) based on the pattern information d30. The unique data is extracted from the accumulated data d20. For example, the pattern information d30 shown in FIG. 8 indicates that the unique data is located first and fifth. In this case, the information processing unit 31 stores each unit data (that is, the unique data “A”, the dummy data “X”, and the dummy data “Y”) held in the accumulated data holding unit 37 as the accumulated data d20. Unit data (that is, unique data “A”) located in at least one of the first and fifth is extracted.

  The subsequent operation is the same as that of the information processing apparatus 30 according to the first embodiment described above. In other words, the information processing unit 31 causes the received data holding unit 39 to hold the extracted unique data. The unique data held in the reception data holding unit 39 is used, for example, for the information processing apparatus 30 to access the server 50 and acquire specific information associated with the unique data from the server 50.

  As described above, in the communication system according to the present embodiment, some unit data among the plurality of types of unit data constituting the communication data is configured as dummy data. If the type of each unit data included in the communication data is generated so as to be different, the type (content) of the dummy data is not particularly limited. For example, it is possible to use different dummy data according to the generation timing. is there. Therefore, according to the communication system according to the present embodiment, it is possible to improve security as compared with the communication system according to the first embodiment.

<3. Third Embodiment>
Next, a communication system according to a third embodiment will be described with reference to FIG. FIG. 9 is an explanatory diagram for explaining a communication system according to the third embodiment. As shown in FIG. 9, in the communication system according to the present embodiment, each of the embodiments described above in that a plurality of patterns of pattern information d50a to d50c are stored in each of the communication terminal 10 and the information processing apparatus 30. It is different from the communication system concerning. Note that the pattern information d50a to d50c stored on the communication terminal 10 side matches the pattern information d50a to d50c stored on the information processing device 30 side.

  Here, with reference to FIG. 10, the pattern information d50a to d50c stored in the information processing apparatus 30 side will be described in detail with specific examples. FIG. 10 is an explanatory diagram for explaining an example of communication data based on the pattern information according to the present embodiment.

  In FIG. 10, reference symbol d51 indicates the data transmission order, and reference symbol d53 schematically indicates communication data generated based on each of the pattern information d50a to d50c. Patterns 1 to 3 correspond to different pattern information. Specifically, the pattern 1 corresponds to the pattern information d50a. Similarly, the pattern 2 corresponds to the pattern information d50b, and the pattern 3 corresponds to the pattern information d50c.

  Patterns 1 to 3 (that is, pattern information d50a to d50c) are different from each other in the order in which a plurality of types of unit data are arranged.

  For example, in the case of pattern 1 (that is, pattern information d50a), unit data of the same type as the first and fifth, that is, unique data is arranged. Also, dummy data 1 is arranged at the second and fourth, and dummy data 2 is arranged at the third and sixth. At this time, different types of unit data are arranged in the first and fifth, second and fourth, third and sixth.

  Similarly, in the case of pattern 2 (that is, pattern information d50b), unique data is arranged in the third and fourth. Further, dummy data 1 is arranged at the first and fifth, and dummy data 2 is arranged at the second and sixth. At this time, different types of unit data are arranged in the third and fourth, first and fifth, second and sixth.

  In the case of pattern 3 (that is, pattern information d50c), unique data is arranged in the fourth and sixth. Further, dummy data 1 is arranged at the first and third, and dummy data 2 is arranged at the second and fifth. At this time, different types of unit data are arranged in the fourth and sixth, first and third, second and fifth.

  As described above, the patterns 1 to 3 are generated so that at least some of the positions where the same type of unit data is arranged are different.

  As can be seen from a comparison between FIG. 9 and FIG. 10, the unique data is associated with the type “I” in the pattern 1, that is, the pattern information d50 a, whereas in the pattern 2, that is, the pattern information d50 b. The unique data is associated with the type “II”. As described above, the pattern information only needs to indicate which types of unit data are associated with the types “I” to “III” and which type corresponds to the unique data. The unique data does not necessarily have to be associated with the same type between different pattern information. Further, as in the second embodiment (see FIG. 7), additional information d501 indicating which type d33 corresponds to valid data may be provided in each of the pattern information d50a to d50c. Of course, the content of the pattern information d50a to d50c is not particularly limited as long as the position of valid data can be recognized among the various types of d33 in each of the pattern information d50a to d50c.

  Here, referring to FIG. 9 again, the operations of the communication terminal 10 and the information processing apparatus 30 according to the present embodiment will be described by focusing on differences from the communication systems according to the other embodiments described above.

  First, a description will be given focusing on the configuration of the communication terminal 10. The information processing unit 11 of the communication terminal 10 extracts any one of the pattern information d50a to d50c stored in the pattern information storage unit 15, and generates communication data based on the extracted pattern information.

  At this time, a rule for the information processing unit 11 to select pattern information to be used from the pattern information d50a to d50c may be set as appropriate according to the operation. For example, the information processing unit 11 may switch pattern information to be used for each transmission timing of communication data. As another example, the information processing unit 11 may randomly select pattern information to be used from the pattern information d50a to d50c, or may use predetermined rules (for example, information such as date and time). You may make it select based on the rule).

  If the pattern information to be used is determined, the subsequent processing of the communication terminal 10 is the same as that of the communication terminal 10 according to each embodiment described above. That is, the information processing unit 11 generates communication data by arranging a plurality of types of unit data based on the acquired pattern information. Then, the information processing unit 11 transmits the generated communication data to the information processing device 30 existing in a predetermined communication area via the communication unit 13.

  In the example illustrated in FIG. 9, an example in which the unique data “A” and the dummy data “X” and “Y” are used as the unit data is illustrated. As described above, multiple types of unique data (for example, unique data “A” to “C”) may be used as unit data.

  Next, a description will be given focusing on the configuration of the information processing apparatus 30. The information processing apparatus 30 acquires the communication data transmitted from the communication terminal 10 via the communication unit 33. The information processing unit 31 stores each unit data constituting the acquired communication data (in other words, unique data and dummy data) as stored data d20 so that the order of the unit data in the communication data can be identified. The data holding unit 37 holds the data. The operation up to this point is the same as that of the information processing apparatus 30 according to each embodiment described above.

  When the accumulated data d20 is held in the accumulated data holding unit 37, the information processing unit 31 extracts unit data from the accumulated data d20 for each type based on the pattern information d50a to d50c stored in the pattern information storage unit 35. Compare the extracted unit data.

  At this time, the information processing unit 31 determines that the transmission source of the acquired communication data is a valid transmission source when the comparison results for each of the pattern information d50a to d50c match each other. To do. On the other hand, the information processing unit 31 determines that the transmission source of the acquired communication data is invalid if the comparison results of at least one of the various types of pattern information d50a to d50c do not match. It is determined that the source is a valid source.

  As described above, in the communication system according to the present embodiment, the pattern information d50a to d50c of a plurality of patterns is stored in each of the communication terminal 10 and the information processing apparatus 30. Then, the communication terminal 10 generates communication data based on any one of the pattern information d50a to d50c. The information processing apparatus 30 extracts unit data for each type from the acquired communication data based on the pattern information d50a to d50c, and compares the extracted unit data. And the information processing part 31 judges that the transmission source of the acquired communication data is a legitimate transmission source, when the comparison result in each of various types for any one of the pattern information d50a to d50c matches.

  With such a configuration, the communication system according to the present embodiment is configured to be able to switch pattern information to be used from among a plurality of patterns of pattern information d50a to d50c. Therefore, for example, imitation of the contents of communication data by eavesdropping on the network n1 becomes difficult compared to the communication system according to each embodiment described above, and as a result, between the communication terminal 10 and the information processing apparatus 30. Communication security can be improved.

<4. Fourth Embodiment>
Next, a communication system according to the fourth embodiment will be described. In the communication system according to each embodiment described above, the case where the information processing apparatus 30 and the communication terminal 10 have a one-to-one relationship has been described. In the fourth embodiment, a case where the information processing apparatus 30 and the communication terminal 10 have a one-to-n relationship will be described.

  For example, FIG. 11 shows an example of a communication system according to the present embodiment. In the example illustrated in FIG. 11, each of the communication terminals 10 a to 10 c indicates a case where communication data is transmitted to the information processing apparatus 30 existing in its own communication area. The example illustrated in FIG. 11 illustrates a case where each of the communication terminals 10a to 10c generates communication data using a plurality of unique data “A” to “C” stored in the unique data storage unit 17 as unit data. ing.

  In the example shown in FIG. 11, pattern information d50a is stored in advance in the pattern information storage unit 15 of the communication terminal 10a. Similarly, pattern information d50b is stored in the pattern information storage unit 15 of the communication terminal 10b, and pattern information d50c is stored in the pattern information storage unit 15 of the communication terminal 10c.

  That is, the communication terminal 10a generates communication data by arranging the unique data “A” to “C” based on the pattern information d50a, and transmits the generated communication data to the information processing apparatus 30 existing in its own communication area. To do.

  Similarly, the communication terminal 10b generates communication data by arranging the unique data “A” to “C” based on the pattern information d50b. In addition, the communication terminal 10c generates communication data by arranging the unique data “A” to “C” based on the pattern information d50c. And the communication terminal 10b and the communication terminal 10c transmit the produced | generated communication data to the information processing apparatus 30 which exists in an own communication area.

  The pattern information storage unit 35 of the information processing apparatus 30 stores pattern information similar to the pattern information d50a to d50c stored in the communication terminals 10a to 10c.

  The information processing apparatus 30 acquires communication data transmitted from each of the communication terminals 10 a to 10 c via the communication unit 33. The information processing unit 31 holds accumulated data as accumulated data d40 so that each unit data constituting the communication data acquired from each of the communication terminals 10a to 10c can identify the order of the unit data in the communication data. The part 37 is held.

  When the accumulated data d40 is held in the accumulated data holding unit 37, the information processing unit 31 determines each communication data held as the accumulated data d40 from the accumulated data d40 for each type based on the pattern information d50a to d50c. Extract unit data. Then, the information processing unit 31 compares the unit data extracted for each type based on the pattern information d50a to d50c.

  At this time, the information processing unit 31 determines that the transmission source of the acquired communication data is a valid transmission source when the comparison results for each of the pattern information d50a to d50c match each other. To do.

  For example, when the communication data from the communication terminal 10a is stored as the accumulated data d40, the information processing unit 31 compares the unit data for each type based on the pattern information d50a to d50c for the communication data. Do. At this time, the information processing unit 31 determines that the communication terminal 10a that is the transmission source of the communication data is a valid transmission source when the comparison results for each of the pattern information d50a to d50c match each other. to decide.

  The information processing unit 31 also compares the communication data acquired from the communication terminals 10b and 10c by the same method as that for the communication terminal 10a, and based on the comparison result, the communication terminals 10b and 10c are valid senders. Determine whether or not.

  Then, when the validity of the transmission source is confirmed by each of the series of pattern information d50a to d50c stored in the pattern information storage unit 35 based on at least one of the communication data, The unique data is extracted from the communication data to be compared. For example, in the case of the example shown in FIG. 11, the information processing unit 31 generates unique data “A” to “C” from any one of the communication data held as the accumulated data d40 in the accumulated data holding unit 37. The extracted unique data “A” to “C” are held in the received data holding unit 39.

  On the other hand, the information processing unit 31 receives communication data from the communication data while the sender's validity is not confirmed for at least one of the series of pattern information d50a to d50c stored in the pattern information storage unit 35. The unique data may not be extracted.

  The information processing unit 31 is not limited to the series of pattern information d50a to d50c. For example, when the legitimacy of the transmission source is confirmed for a predetermined number or more of pattern information, the information processing unit 31 is unique from communication data to be compared Data may be extracted. As a specific example, the information processing unit 31 compares communication data that is a comparison target when the legitimacy of the transmission source is confirmed for two or more pieces of pattern information among the three types of pattern information d50a to d50c. Specific data may be extracted from

  With the configuration as described above, it is possible to limit the operation so that only the information processing apparatus 30 that has acquired communication data from each of the series of communication terminals 10a to 10c can extract unique data from each communication data.

  For example, FIG. 12 illustrates an application example of the communication system according to the present embodiment. In FIG. 12, reference numerals F1a to F1c indicate areas where the communication terminals 10a to 10c can communicate. That is, the example illustrated in FIG. 12 illustrates an example in which the communication terminals 10a to 10c are arranged such that the communication areas F1a to F1c of the communication terminals 10a to 10c overlap each other.

  In the example illustrated in FIG. 12, only the information processing device 30 existing in the area indicated by the reference symbol F2 can receive all communication data transmitted (broadcast) from each of the communication terminals 10a to 10c. . With such a configuration, for example, the information processing device 30 existing in the region F2 is set by setting the period during which each piece of communication data is stored as the stored data d40 in the stored data holding unit 37 of the information processing device 30 relatively short. It is also possible to limit the extraction of unique data only. In other words, with such a configuration, for example, it is possible to provide a service only to a user who has visited the area F2.

  The application example illustrated in FIG. 12 is merely an example, and the application example of the communication system according to the present embodiment is not limited to the example illustrated in FIG. For example, the communication areas F1a to F1c of the communication terminals 10a to 10c do not necessarily have to overlap. As a specific example, the communication data is acquired from each of the communication terminals 10a to 10c within the period T by setting the period during which each communication data is held in the accumulated data holding unit 37 to a predetermined period T. It is also possible to limit so that only the information processing apparatus 30 can extract the unique data. Thereby, for example, it becomes possible to provide a service only to users who have visited each of the communication areas F1a to F1c.

  FIG. 11 shows an example in which each of the communication terminals 10a to 10c generates communication data using the unique data “A” to “C” as unit data. For example, the communication according to the second embodiment As in the system, some unit data may be dummy data.

  For example, FIG. 13 illustrates an example in which each of the communication terminals 10a to 10c uses the unique data “A” as a transmission target and generates communication data based on the unique data “A” and the dummy data.

Note that when some of the unit data is dummy data as in the example shown in FIG. 13, the dummy data used by each of the communication terminals 10 a to 10 c as the unit data does not necessarily match. For example, as shown in FIG. 13 as dummy data “X ₁ ” to “X ₃ ” and “Y ₁ ” to “Y ₃ ”, the communication terminals 10 a to 10 c may use different dummy data. Good.

  In the communication system according to the present embodiment, it is only necessary that unique data can be extracted from at least one of communication data transmitted from each of the communication terminals 10a to 10c. Therefore, if at least one of the communication terminals 10a to 10c transmits communication data including unique data, the communication data transmitted by the other communication terminal does not necessarily include unique data. Absent. In this case, the communication terminal that generates the communication data using only the dummy data does not necessarily need to store the unique data, and may not include the unique data storage unit 17.

  As described above, in the communication system according to the present embodiment, the information processing apparatus 30 and the communication terminal 10 have a one-to-n relationship. As described above, by providing a plurality of communication terminals 10, it is possible to restrict the information processing apparatuses 30 that can extract unique data from communication data transmitted from each communication terminal 10.

<5. Fifth Embodiment>
Next, a communication system according to a fifth embodiment will be described with reference to FIG. FIG. 14 is an explanatory diagram for explaining an overview of a communication system according to the fifth embodiment.

  In the communication system according to each embodiment described above, the pattern information is stored in advance in each of the communication terminal 10 and the information processing apparatus 30. On the other hand, in the communication system according to the present embodiment, as shown in FIG. It is different from the communication system according to the embodiment. Note that the communication terminal 20 in FIG. 14 is a communication terminal (for example, a beacon) that transmits (broadcasts) communication data to the information processing apparatus 30 existing in a predetermined communication area, and the communication terminal according to each embodiment described above. It corresponds to 10.

  Specifically, the communication terminal 20 acquires pattern information from the communication terminal 40, and generates communication data based on the acquired pattern information. Further, the information processing apparatus 30 receives pattern information from the communication terminal 40 and receives communication data from the communication terminal 20. Then, the information processing apparatus 30 extracts unit data for each type from the communication data received from the communication terminal 20 based on the pattern information received from the communication terminal 40, and compares the extracted unit data with each other. The validity of the communication terminal 20 that is the data transmission source is determined.

  Here, the configuration of the communication terminal 20, the information processing apparatus 30, and the communication terminal 40 according to the present embodiment will be described with reference to FIG. FIG. 15 illustrates an example of a schematic functional configuration of each of the communication terminal 20, the information processing device 30, and the communication terminal 40 in the communication system according to the present embodiment.

  First, attention is focused on the configuration of the communication terminal 40. The communication terminal 40 includes a pattern information transmission unit 41, a communication unit 43, and a pattern information storage unit 45.

  The pattern information storage unit 45 corresponds to the pattern information storage unit 15 included in the communication terminal 10 according to each embodiment described above. That is, the pattern information storage unit 45 stores pattern information d10 in advance.

  The communication unit 43 is an interface for the communication terminal 40 to communicate with each of the communication terminal 20 and the information processing apparatus 30. In particular, the communication unit 43 according to the present embodiment is configured to be able to broadcast data wirelessly to the communication terminal 20 and the information processing apparatus 30 existing in a predetermined communication area.

  The pattern information transmission unit 41 reads the pattern information d10 stored in the pattern information storage unit 45. Then, the pattern information transmission unit 41 transmits the read pattern information d10 as communication data to the communication terminal 20 and the information processing apparatus 30 existing in a predetermined communication area via the communication unit 43.

  At this time, the pattern information transmission unit 41 may associate identification information for identifying that the communication data to be transmitted includes the pattern information d10 with a predetermined position in the header of the communication data. With such a configuration, for example, only the communication terminal 20 or the information processing apparatus 30 that can correctly analyze the information in the header recognizes that the communication data received from the communication terminal 40 includes the pattern information d10, and The pattern information d10 can be extracted. Of course, if the communication terminal 20 or the information processing apparatus 30 can recognize that the communication data from the communication terminal 40 includes the pattern information d10, the method and the configuration of the communication data are not particularly limited.

  Next, attention is focused on the configuration of the communication terminal 20. The communication terminal 20 corresponds to the communication terminal 10 according to each embodiment described above and is different from the communication terminal 10 according to each embodiment described above in that the pattern information storage unit 15 is not necessarily included. Hereinafter, the operation of the communication terminal 20 according to the present embodiment will be described by focusing on differences from the communication terminal 10 according to the above-described embodiments.

  The pattern information acquisition unit 111 in the communication terminal 20 acquires pattern information transmitted (broadcast) from the communication terminal 40 via the network n1 (that is, wireless communication with the communication terminal 40). Therefore, it goes without saying that the communication unit 13 is configured to be able to receive communication data transmitted from the communication terminal 40. Further, it is desirable that the communication terminal 20 is disposed at a position where the communication terminal 40 can communicate with the communication terminal 40 (for example, in the communication area of the communication terminal 40) at least at the timing of acquiring the pattern information d10 from the communication terminal 40.

  The pattern information acquisition unit 111 may be configured to recognize that the communication data from the communication terminal 40 includes the pattern information d10. As a specific example, the pattern information acquisition unit 111 is configured to be able to analyze the header of communication data from the communication terminal 40, and based on the identification information recorded in the header, the received communication data is the pattern information d10. May be identified.

  The pattern information acquisition unit 111 outputs the acquired pattern information d10 to the communication data generation unit 113. Thereby, the communication data generation unit 113 can generate communication data using the unique data stored in the unique data storage unit 17 or dummy data as unit data based on the pattern information d10.

  The communication data generation unit 113 according to the present embodiment identifies identification information for identifying that the generated communication data is communication data generated by arranging unit data (for example, unique data or dummy data). May be associated with a predetermined position in the header of the communication data.

  Next, attention is focused on the configuration of the information processing apparatus 30. The information processing apparatus 30 according to the present embodiment acquires the pattern information d10 from the external apparatus (that is, the communication terminal 40) via the network n1 (that is, wireless communication). Different from the processing device 30. Hereinafter, the operation of the information processing apparatus 30 according to the present embodiment will be described by focusing on the difference from the information processing apparatus 30 according to each of the embodiments described above.

  The communication data acquisition unit 311 acquires communication data transmitted from each of the communication terminal 20 and the communication terminal 40 via the network n1 (that is, wireless communication). The communication data acquisition unit 311 analyzes the acquired communication data, and generates the communication data by arranging the communication data including the pattern information d10 transmitted from the communication terminal 40 and the unit data transmitted from the communication terminal 20 One of the received communication data. Note that a method for mounting a function of analyzing communication data transmitted from the communication terminal 20 and the communication terminal 40 on the information processing apparatus 30 is not particularly limited. As a specific example, the user of the information processing device 30 analyzes the communication data with respect to the information processing device 30 by installing an application for analyzing the communication data transmitted from the communication terminal 20 and the communication terminal 40. It may be configured to implement a function for

  When the acquired communication data includes the pattern information d10, the communication data acquisition unit 311 extracts the pattern information d10 from the communication data. Then, the communication data acquisition unit 311 holds the extracted pattern information d10 in the pattern information storage unit 35.

  Further, when the acquired communication data is communication data generated by arranging unit data, the communication data acquiring unit 311 extracts each unit data from the communication data. The communication data acquisition unit 311 holds the extracted unit data in the accumulated data holding unit 37 as accumulated data d20 so that the order of the unit data in the communication data can be identified.

  When the pattern information d10 is held in the pattern information storage unit 35, the determination unit 313 reads the pattern information d10 from the pattern information storage unit 35. Further, when the accumulated data d20 is held in the accumulated data holding unit 37, the determination unit 313 reads the communication data held in the accumulated data holding unit 37 as the accumulated data d20.

  When the determination unit 313 reads both the pattern information d10 and the communication data, the determination unit 313 extracts unit data from the communication data for each data type defined by the pattern information d10 based on the pattern information d10. Compare

  The subsequent processing is the same as that of the information processing apparatus 30 according to each embodiment described above. That is, the determination unit 313 determines that the communication terminal 20 that is the transmission source of communication data is a valid transmission source when the comparison results match for each of the data types defined by the pattern information d10. When determining that the transmission source of the communication data is a valid transmission source, the determination unit 313 specifies the position of the specific data in the communication data based on the pattern information d10, and the specific data is determined from the specified position. Extract. Then, the determination unit 313 causes the received data holding unit 39 to hold the extracted unique data.

  As described above, in the communication system according to the present embodiment, the communication terminal 20 and the information processing apparatus 30 acquire the pattern information d10 from the communication terminal 40, and generate and analyze communication data based on the acquired pattern information d10. . That is, in the communication system according to the present embodiment, the communication terminal 40 centrally manages the pattern information d10 used in communication between the communication terminal 20 and the information processing apparatus 30. Therefore, for example, the communication terminal 40 appropriately switches the pattern information d10 to be distributed, thereby changing the communication data pattern (that is, the arrangement of unit data) transmitted and received between the communication terminal 20 and the information processing apparatus 30. It becomes possible to change dynamically and security is improved.

<6. Summary>
As described above, in the communication system according to the embodiment of the present invention, the communication terminal 10 such as a beacon arranges a plurality of types of unit information (for example, unique data and dummy data) based on pattern information stored in advance. Communication data is generated and broadcasted. Further, the information processing apparatus 30 such as a smartphone compares the received communication data with the unit data based on the pattern information stored in advance, and determines the validity of the transmission source of the communication data based on the comparison result. To do. Thereby, for example, the information processing apparatus 30 recognizes a transmission source holding the same pattern information as itself as a valid transmission source, and extracts unique data only from communication data from the transmission source recognized as valid. It is possible.

  Therefore, for example, even if a beacon that broadcasts a malicious program is illegally installed, as long as the pattern information that is the source of communication data is different from the pattern information stored in the information processing apparatus 30, the information processing apparatus 30 Can recognize the beacon as an unauthorized source.

  In addition, a series of operation | movement mentioned above can be comprised by the program for functioning CPU of the apparatus which operates each structure of the communication terminal 10 or the information processing apparatus 30. FIG. This program may be configured to be executed via an OS (Operating System) installed in the apparatus. In addition, the position of the program is not limited as long as the apparatus including the configuration for executing the above-described processing can be read. For example, the program may be stored in a recording medium connected from the outside of the apparatus. In this case, it is preferable to connect the recording medium storing the program to the apparatus so that the CPU of the apparatus executes the program.

  The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to such examples. It is obvious that a person having ordinary knowledge in the technical field to which the present invention pertains can come up with various changes or modifications within the scope of the technical idea described in the claims. Of course, it is understood that these also belong to the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 10, 10a-10c Communication terminal 11 Information processing part 111 Pattern information acquisition part 113 Communication data generation part 13 Communication part 15 Pattern information storage part 17 Specific data storage part 20 Communication terminal 30 Information processing apparatus 31 Information processing part 311 Communication data acquisition part 313 Determination unit 33 Communication unit 35 Pattern information storage unit 37 Accumulated data storage unit 39 Reception data storage unit 40 Communication terminal 41 Pattern information transmission unit 43 Communication unit 45 Pattern information storage unit 50 Server 70 Base station device

Claims (10)

In the communication data each unit data of a plurality of different values type is contained by a plurality for each type, the respectively type the position in which the unit data corresponding is associated with each, a plurality of different pattern data to one another A pattern information acquisition unit to acquire;
Transmitted from each of a plurality of different external terminals, and the communication data acquisition unit that acquires the communication data,
Based on the acquired pattern information, for each type, the unit data is extracted from each of a plurality of positions associated with the type in the communication data, and the plurality of unit data extracted for each type Comparing each other to determine the validity of the external terminal; and
Equipped with a,
The determination unit
For each of the plurality of acquired communication data, perform the comparison for each of the plurality of acquired pattern information,
Data that is unique to the external terminal corresponding to the communication data is obtained by comparing the unit data from the communication data to be compared when the validity is determined for a predetermined number or more of the pattern information among the plurality of pattern information. A communication device characterized by being extracted as: The determination unit, the type for each, if the plurality of said unit data extracted for each corresponding kind matches, determines that the external terminal is valid, the communication device according to claim 1. The pattern information acquisition unit acquires a plurality of pattern information,
The determination unit
Perform the comparison for each of the acquired pattern information,
Based on at least one of the plurality of pattern information, the external terminal is determined to be valid when the plurality of unit data extracted for each type match for each type. The communication device according to claim 2 . At least one of the plurality of types of unit data is actual data notified from the external terminal,
In the pattern information, the position where the actual data is associated in the communication data is indicated,
The determination unit, when determining that the external terminal is valid based on the pattern information, extracts the actual data from a position where the actual data in the communication data is associated with the pattern information. 2. The communication device according to 2 or 3 . The communication data acquisition unit acquires the communication data generated based on at least one of the plurality of pattern information from each of a plurality of different external terminals,
The determination unit
For each of the plurality of acquired communication data, perform the comparison for each of the plurality of acquired pattern information,
When each of the plurality of communication data matches the plurality of unit data extracted for each of the types based on at least one of the plurality of pattern information, the plurality of unit data extracted for each type The communication device according to claim 2 , wherein each of the external terminals is determined to be valid. The communication apparatus according to claim 5 , wherein the communication data acquired from each of the external terminals is generated based on different pattern information among the plurality of pattern information. Among the communication data acquired from each of the external terminals, at least one of the plurality of types of unit data included in at least one of the communication data is actual data notified from the external terminal,
In the pattern information corresponding to the communication data including the actual data, a position associated with the actual data in the communication data is indicated,
The determination unit determines the communication data based on the pattern information corresponding to the communication data including the actual data when it is determined that the external terminal as a transmission source is valid for each of the plurality of communication data. The communication device according to claim 5 , wherein the actual data is extracted from the data. The pattern information acquiring unit acquires the pattern information from the different external terminal as the transmission source of the communication data, the communication apparatus according to claim 1. A communication system comprising: a transmission device that transmits communication data; and a reception device that receives the communication data transmitted from the transmission device,
The transmitter is
A first pattern information acquisition unit that acquires pattern information for associating with a predetermined position for each type so that a plurality of types of unit data having different values for each type are included in the communication data ; ,
Based on the acquired pattern information, a communication data generation unit that generates the communication data by arranging the plurality of types of unit data at the position associated with the type of the unit data;
With
The receiving device is:
A second pattern information acquisition unit for acquiring a plurality of different pattern information from each other;
A communication data acquisition unit that acquires the communication data transmitted from each of the plurality of different transmission devices;
Based on the acquired pattern information, for each of the types, the unit data is extracted from each of a plurality of positions associated with the type in the communication data, and the plurality of unit data extracted for each type are mutually connected. By comparing, a determination unit that determines the validity of the transmission device;
Equipped with a,
The determination unit
For each of the plurality of acquired communication data, perform the comparison for each of the plurality of acquired pattern information,
Data that is unique to the transmission device corresponding to the communication data is obtained by comparing the unit data from the communication data to be compared when validity is determined for a predetermined number or more of the pattern information among the plurality of pattern information. A communication system characterized by being extracted as: In the communication data each unit data of a plurality of different values type is contained by a plurality for each type, the respectively type the position in which the unit data corresponding is associated with each, a plurality of different pattern data to one another Getting,
Transmitted from each of a plurality of different external terminals, and the communication data acquisition unit that acquires the communication data,
Based on the acquired pattern information, for each type, the unit data is extracted from each of a plurality of positions associated with the type in the communication data, and the plurality of unit data extracted for each type Comparing each other to determine the legitimacy of the external terminal;
Only including,
For each of the plurality of acquired communication data, the comparison is performed for each of the plurality of acquired pattern information,
Data that is unique to the external terminal corresponding to the communication data is obtained by comparing the unit data from the communication data to be compared when the validity is determined for a predetermined number or more of the pattern information among the plurality of pattern information. Extracted as a
Communication method.

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