JP6251060B2 - Wireless communication system, wireless terminal, and wireless communication method - Google Patents

Description

  The present invention relates to a wireless communication system having a plurality of wireless terminals that acquire position information from a GPS satellite, and a wireless terminal and a wireless communication method used therefor.

  Conventionally, it is known that a user (searcher) of a wireless terminal uses GPS information of a wireless terminal of a search target person as a method of acquiring position information of another user (search target person). In this case, the searcher sends an instruction to the search target person's wireless terminal via the server, and the search target person's wireless terminal sends GPS information representing the position of the user in terms of latitude, longitude, and altitude to the server. The received GPS information is converted into address information and transmitted to the searcher's terminal. Note that the location information of the base station registered by the wireless terminal of the search target person may be used instead of the GPS information.

  Patent Document 1 discloses a position estimation system that estimates the position of a mobile wireless device without using GPS information. In this position estimation system, it is assumed that the mobile radio has a function of exchanging each other's device ID by performing short-range radio communication with another mobile radio that has passed at the destination. In addition, the mobile radio uploads the intersection history data to the position estimation device via a nearby connection station, and the intersection history database of the position estimation device has a plurality of mobile radio devices moving within a predetermined area. Crossing history data is accumulated. According to Patent Document 1, it is assumed that the position of a mobile wireless device moving within a predetermined area can be estimated using the intersection history data.

  By the way, in recent years, some portable game machines can exchange information with game machines of other users or play against characters of game machines of other users. As such a communication method, so-called “passing communication” in which direct wireless communication is performed in an ad hoc mode is known.

  For example, Patent Document 2 discloses an information processing apparatus and an information processing method capable of exchanging information with priority given to an information processing apparatus that has not exchanged information so far when a plurality of information processing apparatuses approach. It is disclosed.

JP 2008-298689 A JP 2007-142613 A

  However, when GPS information is acquired as location information via a wide-area communication network as described above, if congestion or a failure occurs in an intermediate node due to a disaster or the like, access increases rapidly, and the current location of the desired opponent It was difficult to get. Moreover, it will also lead to the cause of further worsening the deteriorated communication state.

  This is the same even when the position of the mobile radio is estimated by acquiring the intersection history data via the connecting station as in Patent Document 1.

  On the other hand, in order to avoid exchanging information only with the same partner, the information exchanging apparatus of Patent Document 2 records the identification code and information exchanging date and time of the terminal that has exchanged information in the past in the information exchanging history list. However, the position information at the time of passing was not recorded.

  In view of such problems, the present invention provides a wireless communication system, a wireless terminal, and a wireless terminal capable of knowing when and where other wireless terminals (that is, other users) are located without accessing a wide-area communication network. An object is to provide a communication method.

  In order to solve the above problems, a typical configuration of a wireless communication system according to the present invention is a wireless communication system having a plurality of wireless terminals that acquire position information of itself from GPS satellites. It has a short-range communication function for performing direct wireless communication with a terminal, and when passing by another wireless terminal, it acquires ID information of the other wireless terminal by short-range communication, and when passing, position information, time information and The passing information including the ID information is stored as history data in the storage unit of the terminal itself.

  The wireless terminal may acquire history data stored in a storage unit of another wireless terminal by short-range communication when passing by another wireless terminal.

  The wireless communication system further includes a server connected to the network, and the wireless terminal transmits history data to a server on the network when the traffic of the communication network is low, and the server transmits other wireless data via the network. It is preferable that the terminal can refer to the history data.

  In order to solve the above problems, a typical configuration of a wireless terminal according to the present invention is a wireless terminal that acquires its own position information from a GPS satellite, and a short-range communication function that performs direct wireless communication with another wireless terminal. And when acquiring the ID information of the other wireless terminal by short-range communication when passing the other wireless terminal, the passing information including the position information, the time information and the ID information at the time of passing is used as history data. It memorize | stores in the memory | storage part.

  In order to solve the above-described problem, a representative configuration of a wireless communication method according to the present invention is a wireless communication method between wireless terminals that acquires its own position information from a GPS satellite. The wireless terminal is connected to another wireless terminal. A function of short-range communication that performs direct wireless communication, and when passing with another wireless terminal, acquiring ID information of the other wireless terminal by short-range communication, and position information, time information and ID when passing Storing passing information including information as history data.

  According to the present invention, it is possible to provide a wireless communication system, a wireless terminal, and a wireless communication method capable of knowing when and where other wireless terminals (that is, other users) are located without accessing a wide area communication network. be able to.

It is a functional block diagram which shows the structure of a radio | wireless communications system. It is a conceptual diagram which illustrates operation | movement of a radio | wireless communications system. It is a sequence diagram which illustrates operation | movement of a radio | wireless communications system. It is a figure which illustrates the historical data of the passing information preserve | saved at the memory | storage part.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the embodiment are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted, and elements not directly related to the present invention are not illustrated. To do.

  FIG. 1 is a functional block diagram illustrating the configuration of the wireless communication system 100. The wireless communication system 100 includes a plurality of wireless terminals 102 a, 102 b, 102 c that acquire their own position information from the GPS satellite 104. Although FIG. 1 illustrates the case where the wireless communication system 100 has only three wireless terminals, the wireless communication system 100 actually has a larger number of wireless terminals.

  Each of the wireless terminal 102b and the wireless terminal 102c has the same configuration as that of the wireless terminal 102a. Therefore, hereinafter, only the configuration of the wireless terminal 102a will be described as a representative example, and the other wireless terminals 102b and 102c will be described using the same reference numerals.

  The wireless terminal 102a exhibits a short-range communication function with a GPS receiving unit 110 that receives GPS information from a GPS satellite 104, a wireless communication unit 112 and a baseband unit 114 for performing normal voice communication and data communication. A short-range communication unit 116 and a communication mode switching unit 118 are provided.

  Here, the GPS information is information representing the position of the wireless terminal 102a itself by latitude, longitude, and altitude, and the short-range communication function is the other wireless terminals (wireless terminals 102b and 102c in the present embodiment). This function performs direct wireless communication without going through a base station. As examples of short-range communication functions, wireless LAN (IEEE802.11), BlueTooth (registered trademark), ZigBee (registered trademark), RFID (Radio Frequency IDentification), and the like can be used.

  The wireless terminal 102 a further includes, as history data 130, a terminal information registration unit 120 that registers user information such as IDs of other wireless terminals, a position information conversion unit 122 that converts GPS information into position information, and passing information. A storage unit 124 that stores information, an input unit 126 for a user to input information, a control unit 128 that controls the operation of the wireless terminal 102a, and monitors whether there are other wireless terminals around the terminal. And a peripheral terminal monitoring unit 132.

  FIG. 2 is a conceptual diagram illustrating the operation of the wireless communication system 100. FIG. 3 is a sequence diagram illustrating the operation of the wireless communication system 100. Hereinafter, a specific operation of the wireless communication system 100 will be described with reference to FIGS.

  In the wireless terminals 102a, 102b, and 102c, user information including a device-specific terminal ID (such as IMEI) and a name that the user has input in advance using the input unit 126 is registered in the terminal information registration unit 120. When the users of the wireless terminals 102a, 102b, and 102c operate the input unit 126 to enter the disaster mode, the communication mode switching unit 118 of the wireless terminals 102a, 102b, and 102c turns on the near field communication, and the peripheral terminal The monitoring unit 132 starts peripheral terminal monitoring (step S100). Note that the transition to the disaster mode is not limited to the operation by the user, but may be switched by an instruction signal from the base station.

  In this state, the wireless terminals 102a, 102b, and 102c are in a standby state at the same time while outputting a connectable signal (a beacon signal that is broadcast without specifying a partner).

  For example, in FIG. 2, it is assumed that the wireless terminal 102a moves as shown by a solid line and passes the other wireless terminal 102b. Then, as shown in FIG. 3, it is assumed that the wireless terminal 102b transmits a connectable signal and the wireless terminal 102a receives it (step S102). The wireless terminal 102a that has received the connectable signal transmits an authentication request notification generated by the control unit 128 to the wireless terminal 102b (step S104).

  On the other hand, the wireless terminal 102b receives the authentication request notification from the wireless terminal 102a, and returns an authentication success response generated by the control unit 128 to the wireless terminal 102a (step S106). This establishes a connection between the wireless terminals 102a and 102b. Subsequently, the wireless terminal 102b transmits user information including its own terminal ID information from the control unit 128 to the wireless terminal 102a (step S108).

  On the other hand, the wireless terminal 102a receives the user information of the wireless terminal 102b, and stores the passing information including the user information, the position information at the time of passing, and the time information as the history data 130 in the storage unit 124 (step S110). ).

  The “location information” means that the wireless terminal 102a receives GPS information (information indicating the location of the terminal in latitude, longitude, and altitude) by the GPS receiving unit 110, and the location information converting unit 122 receives the location information (terminal information). The information is converted into the information indicated by the address.

  Next, as shown by a broken line in FIG. 2, it is assumed that the wireless terminal 102a further moves and passes the other wireless terminal 102c. As shown in FIG. 3, it is assumed that the wireless terminal 102c receives the connectable signal transmitted by the wireless terminal 102a (step S112). The wireless terminal 102c that has received the connectable signal transmits the authentication request notification generated by the control unit 128 to the wireless terminal 102a (step S114).

  On the other hand, the wireless terminal 102a receives the authentication request notification of the wireless terminal 102c, and returns the authentication success response generated by the control unit 128 to the wireless terminal 102c (step S116). This establishes the connection between the wireless terminals 102a and 102c. Subsequently, the wireless terminal 102a transmits user information including its own terminal ID and the like to the wireless terminal 102c by the control unit 128 (step S118). Further, the wireless terminal 102a also transmits to the wireless terminal 102c the history data 130 of the passing information with the other wireless terminal 102b stored in its storage unit 124 at the stage of step S110 (step S120).

  On the other hand, the wireless terminal 102c receives the user information of the wireless terminal 102a, and stores the passing information including the user information and the current position information and time information in the storage unit 124 as history data (step S122). . Further, the history data 130 of the passing information of the wireless terminal 102a and the wireless terminal 102b received from the wireless terminal 102a is also stored in the storage unit 124 (step S124).

  In this way, the wireless terminals 102a, 102b, and 102c perform near field communication when passing each other and store the passing information. Therefore, the users of the wireless terminals 102a, 102b, and 102c can know when and where the other wireless terminals were by referring to the passing information stored in the wireless terminals that they own.

  Furthermore, the history data can be shared cumulatively by exchanging the history data of other terminals with each other. The storage unit 124 is like a database. FIG. 4 is a diagram illustrating history data of passing information stored in the storage unit 124. In this example, a user who has passed by is identified based on the terminal ID of the user information, and who and who passed by are stored in a time series in the “user 1” and “user 2” fields. The passing position information is stored in the “place” column as an address display, and the passing time information is stored in the “date and time” column.

  The user can search for necessary data by operating the input unit 126 and inputting a user ID or a telephone number for the passing information or history data stored in the wireless terminal in this way. That is, when a plurality of wireless terminals cumulatively share history data, it is possible to know when and where a wireless terminal that has not passed by itself is also present. By referring to this cumulative history data, it becomes possible to track the footprint of a certain user.

  As described above, according to the above configuration, a user of a wireless terminal can know when and where another wireless terminal (that is, another user) was located without accessing a wide area communication network. Therefore, even if the communication state is deteriorated due to the occurrence of a disaster or the like, it is possible to confirm the safety of other users, and the deteriorated communication state is not further deteriorated.

  In this embodiment, the wireless communication system 100 further includes a server connected to the network, and the wireless terminals 102a, 102b, and 102c transmit history data to the server on the network when the communication network traffic is low. You may comprise. For example, history data is accumulated in a disaster occurrence area, and when there is a wireless terminal that has moved outside the disaster occurrence area, the history data is transmitted from the wireless terminal to a server through a mobile phone network or the like. The server allows other terminals to refer to the history data via the network.

  In this case, history data can be referred to from various other communication terminals (including wireless terminals) such as a personal computer and a smartphone via a network such as the Internet (whether wired or wireless). Therefore, it is possible to confirm the safety of acquaintances and family members from remote locations where short-range communication is not possible.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to this example. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  INDUSTRIAL APPLICABILITY The present invention can be used as a wireless communication system having a plurality of wireless terminals that acquire its own position information from GPS satellites, a wireless terminal used in the wireless communication system, and a wireless communication method.

DESCRIPTION OF SYMBOLS 100 ... Wireless communication system, 104 ... GPS satellite, 110 ... GPS receiving part, 116 ... Short-range communication part, 118 ... Communication mode switching part, 120 ... Terminal information registration part, 122 ... Position information conversion part, 124 ... Memory | storage part, 126 ... Input unit, 128 ... Control unit, 130 ... History data, 132 ... Peripheral terminal monitoring unit, 102a, 102b, 102c ... Wireless terminal

Claims (6)

In a wireless communication system having a plurality of wireless terminals that acquire position information from GPS satellites,
The wireless terminal has a function of short-range communication for performing direct wireless communication with another wireless terminal, when I passed the first wireless terminal, acquires the ID information of the first wireless terminal by the short-range communication , location information when passed each other and said first wireless terminal, stored in the storage unit of its own terminal to passing information including time information and ID information of the first wireless terminal as history data,
Next, when passing the second wireless terminal, the wireless communication system characterized by transmitting the ID information of the terminal and the history data to the second wireless terminal . When the second wireless terminal passes by the wireless terminal, the second wireless terminal acquires ID information of the wireless terminal by the short-range communication, and includes the positional information, time information, and the ID information at the time of the passing. The wireless communication system according to claim 1, wherein the history data is stored together with information in a storage unit. When the wireless terminal passes by another wireless terminal, the wireless terminal exchanges the history data stored in each wireless terminal, and accumulates the acquired history data of the other terminal together with the history data of the own terminal. The wireless communication system according to claim 1 or 2, wherein the wireless communication system is stored in an automatic manner. In addition, it has a server connected to the network,
The wireless terminal transmits the pre SL history data to the server on the network,
The wireless communication system according to any one of claims 1 to 3, wherein the server enables the other wireless terminal to refer to the history data via the network. In a wireless terminal that acquires its position information from a GPS satellite,
A function of short-range communication for performing direct wireless communication with another wireless terminal, when I passed the first wireless terminal, acquires the ID information of the first wireless terminal by the short distance communication, the first position information when passing each other with a wireless terminal, stored in the storage unit of its own terminal to passing information including time information and ID information of the first wireless terminal as history data,
Next, when passing the second wireless terminal, the wireless terminal transmits the ID information of the own terminal and the history data to the second wireless terminal. In a wireless communication method between wireless terminals that acquire own position information from GPS satellites,
The wireless terminal has a function of short-range communication for performing direct wireless communication with another wireless terminal, when I passed the first wireless terminal, acquires the ID information of the first wireless terminal by the short-range communication a step, a step of storing positional information when passed each other and said first wireless terminal, the passing information including time information and ID information of the first wireless terminal as history data, and then the second wireless terminal And a step of transmitting the ID information of the terminal and the history data to the second wireless terminal when passed.

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