JP5236679B2 - Wireless communication apparatus, program, and wireless communication method - Google Patents

Description

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

  In the near future, network services such as an instant message (IM), a social network system (SNS), or a diary on the web, where an individual user participates using a communication device and publishes the information of the user are widely used. The user information includes, for example, information on whether or not the communication device is online and the current state of the user manually set by the user (during studying, during leisure, during a meeting, etc.).

  In addition, the user can also disclose the user's position information acquired by the communication device based on position estimation technology such as GPS (Global Positioning System) or WiFi (Wireless Fidelity). In this way, each user discloses his / her location information, for example, a certain user knows that his / her friend is nearby and invites his / her friend to a meal. It is possible to ask a friend about his / her impression of the sightseeing spot, or to refrain from inviting play by knowing that the friend is working at the company. That is, if each user publishes his / her position information, each user can grasp the position information of the other user, and can further utilize the position information of the other user for communication with the other user. .

  Patent Document 1 discloses a technique related to a system for notifying a third party of the user's own position information as described above. Specifically, Patent Document 1 discloses a portable wireless terminal device that controls whether position information measured by GPS is disclosed or position information that is different from the actual is disclosed according to a communication partner. .

JP 2002-345012 A

  However, in the conventional portable wireless terminal device, it has not been possible to control whether or not the position information is disclosed according to the position of the user. Therefore, in the conventional portable wireless terminal device, when the user is at home or at work, for example, the user's location information is disclosed, and the user's home location or work location is specified by a third party. was there. That is, the conventional portable wireless terminal device has a problem that the privacy of the user cannot be sufficiently secured.

  Accordingly, the present invention has been made in view of the above problems, and an object of the present invention is to provide a new and improved wireless communication apparatus and program capable of expanding the information protection related to the location. And providing a wireless communication method.

  In order to solve the above problems, according to an aspect of the present invention, a transmission unit that transmits information, information indicating a position of the wireless communication device, or a base of a signal transmitted from a surrounding base station in the wireless communication device The information acquisition unit that acquires the position information of the wireless communication device including the reception intensity for each station, and the regulation information that specifies the transmission of information according to the position of the wireless communication device from the transmission unit are associated with arbitrary position information A storage unit, an extraction unit that extracts regulation information corresponding to the position information acquired by the information acquisition unit from the storage unit, and a position of the wireless communication device from the transmission unit according to the regulation information extracted by the extraction unit And a transmission control unit that controls transmission of information in accordance with the wireless communication apparatus.

  In such a configuration, the position information of the wireless communication device including the latitude / longitude indicating the position of the wireless communication device or the reception intensity of the signal transmitted from the surrounding base station inherently obtained at the position of the wireless communication device is information. Acquired by the acquisition unit. Further, information according to the position of the wireless communication device from the transmission unit, for example, regulation information that defines transmission of the position information of the wireless communication device is stored in the storage unit in association with arbitrary position information, and the extraction unit The regulation information corresponding to the position information of the wireless communication device is extracted from the storage unit, and the transmission control unit controls transmission of information according to the position of the wireless communication device from the transmission unit according to the extracted regulation information. That is, the wireless communication apparatus can control transmission of information according to the position of the own apparatus based on the position of the own apparatus or the reception strength of a signal transmitted from a surrounding base station.

  The regulation information includes information that regulates whether or not the position information of the wireless communication device is transmitted to the transmission unit, and the transmission control unit receives the position information of the wireless communication device from the transmission unit according to the regulation information extracted by the extraction unit. Whether or not to transmit may be controlled. For example, when the regulation information extracted by the extraction unit prohibits transmission of the position information of the wireless communication device, the transmission control unit prohibits transmission of the position information of the wireless communication device from the transmission unit. That is, the wireless communication apparatus can control whether or not to transmit the position information of the own apparatus according to the position of the own apparatus. In this way, the wireless communication device can control whether or not to transmit the location information of the own device according to the location of the own device, that is, the location of the user of the wireless communication device. It is possible to enhance the protection of information related to the location of the user of the communication device.

  The regulation information includes transmission information that expresses the positional information associated with the storage unit in another format, and the transmission control unit transmits the transmission information included in the regulation information extracted by the extraction unit to the transmission unit. You may let them. Here, the transmission information is information that expresses location information in another format. For example, information indicating a facility such as a home, a company, or a cafe that exists at the location indicated by the associated location information, or the associated information. It may include information indicating a state such as returning home, during a meeting, or during leisure according to the position indicated by the current position information. Therefore, if the transmission control unit causes the transmission information to be transmitted to the transmission unit based on the regulation information, the information corresponding to the position of the wireless communication device is not disclosed to the third party. Can be made public.

  When the regulation information corresponding to the position information of the wireless communication device acquired by the information acquisition unit is not stored in the storage unit, the transmission control unit transmits the position information of the wireless communication device acquired by the information acquisition unit to the transmission unit. It may be transmitted. In such a configuration, since the position information of the wireless communication device is transmitted at a position not associated with special regulation information, a third party can grasp the position of the wireless communication device.

  The regulation information may include validity period information indicating the validity period of the regulation information, and the extraction unit may extract the regulation information that corresponds to the position information acquired by the information acquisition unit and is within the validity period. Here, the user of the wireless communication device may not want to disclose to a third party that he / she is in a specific place and in a specific time zone. For example, a user of a wireless communication device may disclose to a third party that he / she is at work on weekdays, but may not want to disclose to a third party that he / she is at work on a holiday. In such a case, if the valid period information indicating a holiday is included in the regulation information for prohibiting the transmission of location information in the workplace, the wireless communication device is placed in the workplace of the user of the wireless communication device on a holiday. Do not send location information when present. That is, by providing an effective period in the regulation information, it is possible to control whether to disclose the position information of the wireless communication device, for example, according to the position of the wireless communication device and the current time. Can be further expanded.

  The wireless communication apparatus may further include a registration unit that registers the regulation information in the storage unit in association with the position information. In such a configuration, the registration unit may register the regulation information desired by the user of the wireless communication device in the storage unit in association with the position information based on, for example, a registration operation of the regulation information by the user of the wireless communication device. it can.

  The storage unit stores the reception strength for each base station in association with the regulation information, and the extraction unit stores the base station for each base station that matches or is similar to the reception strength for each base station acquired by the information acquisition unit. You may extract the prescription | regulation information with which receiving intensity is matched. In such a configuration, the prescription information corresponding to the position information of the wireless communication device is obtained without estimating the position of the wireless communication device based on the reception strength of each base station of the signal received from the surrounding base station by the wireless communication device. It becomes possible to extract. Therefore, there is no need to store the location information of each base station in the wireless communication device, and it is not necessary to inquire the current location to the location estimation server that estimates the location of the wireless communication device, thereby reducing the hardware scale and processing load. Can be planned.

  In order to solve the above-described problem, according to another aspect of the present invention, a computer is a wireless communication device, and a transmission unit that transmits information, information indicating a position of the wireless communication device, or wireless communication An information acquisition unit that acquires position information of a wireless communication device including reception strength of each signal transmitted from a surrounding base station in the device, and transmission of information according to the position of the wireless communication device from the transmission unit A recording unit that records prescribing information that prescribes information on a storage medium in association with arbitrary position information, an extracting unit that extracts prescribing information corresponding to the position information acquired by the information acquiring unit from the storage medium, and an extracting unit A program is provided for causing a wireless communication device to function as a wireless communication device including a transmission control unit that controls transmission of information according to the position of the wireless communication device from the transmission unit in accordance with the extracted regulation information.

  Such a program can cause a computer hardware resource including, for example, a CPU, a ROM, or a RAM to execute functions such as the information acquisition unit, the recording unit, the extraction unit, and the transmission control unit. That is, a computer using the program can function as the above-described wireless communication device.

  In order to solve the above problem, according to another aspect of the present invention, according to another aspect of the present invention, information indicating the position of a wireless communication device or reception strength of a signal transmitted from a surrounding base station in the wireless communication device for each base station , Including the step of acquiring the position information of the wireless communication device including, and the regulation information corresponding to the position information acquired by the information acquisition unit from the transmission unit stored in the storage medium in association with the arbitrary position information The step of extracting from the regulation information that regulates the transmission of information according to the position of the wireless communication device, and the control of the transmission of the information according to the position of the wireless communication device from the transmission device according to the regulation information extracted from the storage medium A wireless communication method comprising the steps of:

  In order to solve the above problems, according to another aspect of the present invention, an information processing apparatus capable of communicating with a plurality of communication apparatuses, a transmission unit that transmits information, and a position of each communication apparatus are estimated. An information acquisition unit that acquires possible information from each communication device, a calculation unit that calculates the distance between one communication device and each of the other communication devices based on the information acquired from each communication device, A transmission control unit that controls transmission of information according to the position of one communication device from the transmission unit based on the distance between the one communication device calculated by the calculation unit and each of the other communication devices; There is provided an information processing apparatus comprising:

  In such a configuration, the calculation unit calculates the distance between one communication device and each of the other communication devices, and the transmission control unit calculates the one communication device calculated by the calculation unit and each of the other communication devices. The transmission of information based on the position of one communication device from the transmission unit is controlled according to the distance between the two. Therefore, the information processing device is disclosed to other wireless communication devices according to the distance between the one communication device and the other wireless communication device without causing the one communication device to know the distance from the other wireless communication device. Information to be controlled.

  When the distance between one communication device calculated by the calculation unit and each of the other communication devices exceeds a predetermined set distance, the transmission control unit transmits the position information of the one communication device from the transmission unit. Transmission may be prohibited. According to such a configuration, the information processing apparatus transfers the position information of the one communication apparatus and the position information to another wireless communication apparatus that is arranged at least a predetermined set distance away from the one communication apparatus. It is possible to prevent the transmission information expressed in (4) from being disclosed.

  In order to solve the above-described problem, according to another aspect of the present invention, a computer is an information processing apparatus capable of communicating with a plurality of communication apparatuses, and each piece of information that can estimate the position of each communication apparatus is provided. Calculated by an information acquisition unit acquired from a communication device, a calculation unit that calculates a distance between one communication device and each of other communication devices based on information acquired from each communication device, and a calculation unit An information processing apparatus comprising: a transmission control unit that controls transmission of information according to a position of the one communication device from the transmission device based on a distance between the one communication device and each of the other communication devices A program for functioning as a server is provided.

  Such a program can cause a computer hardware resource including, for example, a CPU, a ROM, or a RAM to execute functions such as the information acquisition unit, the calculation unit, and the transmission control unit. That is, it is possible to cause a computer using the program to function as the information processing apparatus described above.

  In order to solve the above problem, according to another aspect of the present invention, based on information acquired from each communication device, the step of acquiring information capable of estimating the positions of a plurality of communication devices from each communication device. And calculating the distance between the one communication device and each of the other communication devices, and based on the calculated distance between the one communication device and each of the other communication devices, And a step of controlling the transmission of information according to the position of the communication device.

  As described above, according to the information processing apparatus, the information processing method, and the program according to the present invention, it is possible to expand information protection regarding the location of the wireless communication apparatus.

It is explanatory drawing which showed the structure of the radio | wireless communications system concerning the 1st Embodiment of this invention. It is the block diagram which showed the hardware constitutions of the portable device concerning the same embodiment. It is a functional block diagram showing the configuration of the portable device according to the embodiment. It is explanatory drawing which showed an example of the positional relationship of the portable apparatus and base station concerning the embodiment. It is explanatory drawing which showed an example of the signal strength measured by the information acquisition part. It is explanatory drawing which showed an example of the base station information which a memory | storage part memorize | stores. It is explanatory drawing which showed an example of the registration screen of regulation information It is explanatory drawing which showed an example of the regulation information recorded on the memory | storage part. It is explanatory drawing which showed the example of a display of the information regarding the presence position of another portable apparatus. It is explanatory drawing which showed the other display example of the information regarding the presence position of another portable apparatus. 5 is a flowchart showing a flow of a wireless communication method executed in the mobile device according to the embodiment. It is explanatory drawing which showed the specific example of the information transmitted from a communication part in the embodiment. It is explanatory drawing which showed an example of the regulation information which the memory | storage part has memorize | stored in the example of a change of the embodiment. It is the flowchart which showed the flow of the example of a change of the embodiment. It is explanatory drawing which showed the structural example of the radio | wireless communications system concerning the 2nd Embodiment of this invention. It is the functional block diagram which showed the structure of the portable apparatus and management server concerning the embodiment. It is explanatory drawing which showed an example of the registration screen of regulation information. It is explanatory drawing which showed an example of the regulation information memorize | stored in the memory | storage part of the management server concerning the embodiment. 3 is a flowchart showing a flow of operations of the mobile device according to the embodiment. It is the flowchart which showed the flow of the information processing method performed in the management server concerning 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, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

Further, the “best mode for carrying out the invention” will be described in the order of items shown below.
[1] Description of the first embodiment of the present invention [1-1] Outline and purpose of the wireless communication system according to the present embodiment [1-2] Hardware configuration of the portable device according to the present embodiment [1-3] ] Functions of portable device according to this embodiment [1-3-1] Location estimation method of portable device [1-3-2] Registration of regulation information [1-3-3] Transmission control based on regulation information [1- 3-4] Display example of position information of other person in portable device [1-4] Operation of portable device according to this embodiment [1-5] Modified example of this embodiment [2] Second embodiment of the present invention [2-1] Purpose of this embodiment [2-2] Function of management server in this embodiment [2-3] Operation of management server in this embodiment [3] Summary

[1] Description of First Embodiment of the Present Invention [1-1] Overview and Purpose of the Wireless Communication System According to the First Embodiment First, the overview and purpose of the wireless communication system 1 according to the first embodiment of the present invention. Will be described with reference to FIG.

  FIG. 1 is an explanatory diagram showing a configuration of a wireless communication system 1 according to the present embodiment. The wireless communication system 1 includes wireless communication devices such as a mobile device 20A, a mobile device 20B, a mobile device 20C, and a mobile device 20D, and each mobile device 20 is connected via a communication network 12.

  In FIG. 1, a notebook PC (Personal Computer) is shown as the portable device 20A, a portable game machine is shown as the portable device 20B, a notebook PC is shown as the portable device 20C, and a mobile phone is shown as the portable device 20D. The device 20 is not limited to such a device. For example, a home video processing device (DVD recorder, VCR, etc.), a PHS (Personal Handyphone System), a portable music playback device, a portable video processing device, a PDA (Personal Digital Assistant). ), An information processing apparatus such as a home game machine or a home appliance.

  The communication network 12 may include a wired cable such as a copper wire or an optical fiber, a data transmission path such as a radio wave, or a data relay such as a router or a base station that controls communication.

  Each of the mobile devices 20 as described above is equipped with a function for acquiring position information indicating the position of the own device. In addition, each mobile device 20 can transmit and disclose the acquired position information of its own device to other mobile devices 20 via the communication network 12. Each mobile device 20 publishes its own location information to other mobile devices 20, for example, so that the user of the mobile device 20 </ b> A knows that the user of the mobile device 20 </ b> B who is a friend is nearby and the mobile device 20 </ b> B The user of the portable device 20C, who is a colleague, invites the user to a meal, knows that the user has gone to a restaurant, asks the user of the portable device 20C about the impression of the restaurant, or the user of the portable device 20D who is a friend It is possible to understand that you are at work and refrain from inviting you to play. That is, if each mobile device 20 discloses its own location information, the user of each mobile device 20 grasps the location information of other users, and further uses the location information of other users for communication with other users. It can also be used.

  However, the user of the mobile device 20 may not want to specify a specific position such as his / her home, work, school, or favorite shop by a third party from the viewpoint of privacy. Therefore, if the location information of the mobile device 20 is disclosed regardless of the location of the mobile device 20, there may be inconvenience for the user of the mobile device 20.

  Accordingly, the first embodiment of the present invention has been created with the above circumstances as a focus. According to the first embodiment of the present invention, it is possible to expand the protection of information regarding the mobile device 20 and the location of the user of the mobile device 20. Hereinafter, the configuration and operation of such a portable device 20 will be described in detail.

[1-2] Hardware Configuration of Mobile Device According to the Embodiment FIG. 2 is a block diagram showing the hardware configuration of the mobile device 20. The portable device 20 includes a CPU (Central Processing Unit) 201, a ROM (Read Only Memory) 202, a RAM (Random Access Memory) 203, a host bus 204, a bridge 205, an external bus 206, an interface 207, An input device 208, an output device 210, a storage device (HDD) 211, a drive 212, and a communication device 215 are provided.

  The CPU 201 functions as an arithmetic processing device and a control device, and controls the overall operation in the portable device 20 according to various programs. Further, the CPU 201 may be a microprocessor. The ROM 202 stores programs used by the CPU 201, calculation parameters, and the like. The RAM 203 primarily stores programs used in the execution of the CPU 201, parameters that change as appropriate during the execution, and the like. These are connected to each other by a host bus 204 including a CPU bus.

  The host bus 204 is connected to an external bus 206 such as a PCI (Peripheral Component Interconnect / Interface) bus via a bridge 205. Note that the host bus 204, the bridge 205, and the external bus 206 are not necessarily configured separately, and these functions may be mounted on one bus.

  The input device 208 is, for example, an input means for a user to input information, such as a mouse, keyboard, touch panel, button, microphone, switch, and lever, and an input that generates an input signal based on the input by the user and outputs the input signal to the CPU 201 It consists of a control circuit. A user of the mobile device 20 can input various data and instruct a processing operation to the mobile device 20 by operating the input device 208.

  The output device 210 includes, for example, a CRT (Cathode Ray Tube) display device, a liquid crystal display (LCD) device and a display device such as a lamp, and an audio output device such as a speaker and headphones. The output device 210 outputs reproduced content, for example. Specifically, the display device displays various information such as reproduced video data as text or images. On the other hand, the audio output device converts reproduced audio data or the like into audio and outputs it.

  The storage device 211 is a data storage device configured as an example of a storage unit of the mobile device 20 according to the present embodiment, and is a storage medium, a recording device that records data in the storage medium, and a read that reads data from the storage medium A deletion device for deleting data recorded on the device and the storage medium can be included. The storage device 211 is composed of, for example, an HDD (Hard Disk Drive). The storage device 211 drives a hard disk and stores programs executed by the CPU 201 and various data. The storage device 211 stores base station information, regulation information, and the like, which will be described later.

  The drive 212 is a storage medium reader / writer, and is built in or externally attached to the portable device 20. The drive 212 reads information recorded on a removable storage medium 24 such as a mounted magnetic disk, optical disk, magneto-optical disk, or semiconductor memory, and outputs it to the RAM 203.

  The communication device 215 is a communication interface configured with, for example, a communication device for connecting to the communication network 12. The communication device 215 may be a wireless LAN (Local Area Network) compatible communication device, a wireless USB compatible communication device, or a wire communication device that performs wired communication. The communication device 215 transmits and receives various data such as position information and position aliases of the mobile device 20 to and from other mobile devices 20 via the communication network 12.

[1-3] Functions of Mobile Device According to this Embodiment FIG. 3 is a functional block diagram showing the configuration of the mobile device 20 according to this embodiment. The portable device 20 includes a communication unit 216, an information acquisition unit 220, a storage unit 224, a display screen generation unit 228, a display unit 232, a setting operation unit 236, a recording unit 240, a determination unit 244, An extraction unit 248 and a transmission control unit 252 are provided. Registration of regulation information based on functions of the mobile device 20 based on the functions of the communication unit 216, the information acquisition unit 220, and the storage unit 224, the display screen generation unit 228, the display unit 232, and the setting operation unit 236 An example of information transmission control based on the functions of the determination unit 244, the extraction unit 248, and the transmission control unit 252, and a display example of other person's position information based on the functions of the display screen generation unit 228 and the display unit 232 will be described.

[1-3-1] Portable Device Location Estimation Method The communication unit 216 is an interface for transmitting / receiving information such as location information and location aliases to / from other portable devices 20B and 20C, and includes a transmission unit, a reception unit, It has a function as a transmission device. Further, the communication unit 216 can receive a signal transmitted from the base station 30.

  Even if the base station 30 is a base station of a wireless LAN (Local Area Network) of the IEEE 802.11 series (for example, 802.11b, 802.11g, etc.) based on the WiFi (Wireless Fidelity) standard, the GSM (Global System forge) is used. Whether it is a Mobile Communications (BS) base station, a mobile phone or PHS (Personal Handyphone System) base station, or a near field radio base station such as Bluetooth, it is a GPS (Global Positioning System) satellite. May be.

  For example, when the base station 30 is a WiFi base station (access point), the base station 30 transmits a beacon signal for notifying the surroundings of the presence of the base station 30 in addition to a signal transmitted when relaying wireless communication. Can be sent periodically. The beacon signal includes, for example, a base station ID as base station identification information uniquely given to the base station 30. As a result, the mobile device 20 can confirm the presence of the base stations 30 existing in the vicinity based on the base station ID of the beacon signal received by the communication unit 216.

  The information acquisition unit 220 measures the reception intensity of the signal received from each of the surrounding base stations 30 by the communication unit 216, and indicates position information indicating the location of the mobile device 20 based on the measured reception intensity for each base station 30. To get. The reception intensity measured by the information acquisition unit 220 will be described with reference to FIGS. 4 and 5.

  FIG. 4 is an explanatory diagram showing an example of the positional relationship between the mobile device 20 and the base station 30. FIG. 5 is an explanatory diagram showing an example of the signal strength measured by the information acquisition unit 220. In the example shown in FIG. 4, the base station 30A, the base station 30B, the base station 30C, and the base station 30D are arranged in the vicinity of the mobile device 20, and the communication unit 216 of the mobile device 20 includes the base station 30A, the base station Signals transmitted from the station 30B, the base station 30C, and the base station 30D can be received. In the present specification, for convenience of explanation, it is assumed that the reference numeral given to each base station is the base station ID of each base station.

  Further, as illustrated in FIG. 5, the information acquisition unit 220 measures the reception intensity of the signal transmitted from each base station 30 received by the communication unit 216. In FIG. 5, the signal transmitted from the base station 30 </ b> B whose base station ID is “30A” and the received intensity of the signal transmitted from the base station 30 </ b> A is “−90 Dbm” and the base station ID is “30B”. The base station ID is “−70 Dbm”, the base station ID is “30C”, the base station ID is “−80 Dbm”, and the base station ID is “30D”. This shows a case where the reception intensity of the signal transmitted from 30D is “−75 Dbm”.

  On the other hand, the storage unit 224 stores the base station ID of the base station 30 that performs wireless communication with the mobile device 20 and the location information indicating the installation location of the base station 30 in association with each other as base station information. An example of base station information stored in the storage unit 224 will be described with reference to FIG.

  FIG. 6 is an explanatory diagram showing an example of base station information stored in the storage unit 224. As illustrated in FIG. 6, the storage unit 224 associates a base station ID with latitude and longitude as position information where the base station is installed, and stores them as known base station information. Specifically, the base station 30A having the base station ID “30A” is stored in the storage unit 224 as being installed at longitude (east longitude) “135.001” and latitude (north latitude) “35.49”. Has been.

  Similarly, the base station 30B with the base station ID “30B” has the longitude “135.002” and the latitude “35.41”, and the base station 30C with the base station ID “30C” has the longitude “135.003”. The base station 30D having the base station ID “30D” at the latitude “35.50” is stored in the storage unit 224 as being installed at the longitude “135.002” and the latitude “35.42”. .

  Note that the format of the position information stored in the storage unit 224 is not limited to the format using latitude and longitude, and may be, for example, a format using x, y coordinates or a format using polar coordinates. A format using a vector may be used.

  In addition, the storage unit 224 includes a nonvolatile memory such as an EEPROM (Electrically Erasable Programmable Read-Only Memory) and an ERPM (Erasable Programmable Read Only Memory), a hard disk, a disk type magnetic CD, and an R-type mp. Disk Recordable) / RW (ReWritable), DVD-R (Digital Versatile Disk Recordable) / RW / + R / + RW / RAM (Ramdam Access Memory) and BD (Blu-Ray Disc-Registered Trademark) Optical discs and MO (Magneto Optical) You may comprise with storage media, such as a disk.

(Example of location information estimation method)
The information acquisition unit 220 uses the measured reception strength of the signal transmitted from each base station 30 and the base station information stored in the storage unit 224, for example, based on Equation 1 below, the location information of the mobile device 20 Estimate and get.

  In Equation 1, Ai indicates the position information of the i-th base station 30 registered in the storage unit 224. Therefore, when the base station information is represented by longitude and latitude as shown in FIG. 6, Formula 1 is applied for each longitude and latitude. Wi is a weighting coefficient obtained based on distS (O, Ai) indicating the distance between the mobile device 20 and the i-th base station 30 estimated from the signal strength, as shown in Equation 2. W is the sum of the weighting coefficients as shown in Equation 3.

  Referring to Equation 1, the position information of the base station 30 having a small distS (O, Ai) is largely reflected in the position O of the portable device 20 at each estimated measurement time. On the other hand, the position information of the base station 30 having a large distS (O, Ai) has a small influence on the estimated position O of the mobile device 20.

  The information acquisition unit 220 can reasonably estimate the position information of the mobile device 20 by using Formula 1 like this. Further, the information acquisition unit 220 can also acquire an address such as “AB prefecture C ward 5 chome” based on the estimated position information.

(Example of changing location information estimation method)
Note that the position estimation method of the portable device 20 is not limited to the method using the above formula 1, and for example, the position of the base station 30 that is the transmission source of the signal having the highest reception intensity in the portable device 20 is the position of the portable device 20. May be estimated. Further, the position at which the reception intensity at the portable device 20 is the center of the base station that is the transmission source of the signal that is equal to or greater than a predetermined threshold may be estimated as the position of the portable device 20. Further, it is estimated that the position of the mobile device 20 is the position of the base station that is the transmission source base station of the signal whose received intensity ranks in the top 10%, 20%, etc. Also good. Further, it may be estimated that the position at which the mobile device 20 is at the center of the base station that is the transmission source of the signal whose reception intensity at the mobile device 20 is in a predetermined order such as the top 5 or 10 is the position of the mobile device 20. .

  In the above description, the information acquisition unit 220 estimates the position information of the portable device 20 based on the reception intensity of the signal transmitted from the WiFi base station 30. However, the information acquisition unit 220 transmits the GPS information from the GPS satellite. Even if the position information of the mobile device 20 is acquired based on the received positioning radio wave, the position information of the mobile device 20 is acquired based on the reception intensity of the signal transmitted from the mobile phone or PHS base station. Good.

  Moreover, although the case where the position information of the portable device 20 is estimated and acquired in the portable device 20 has been described above, the present embodiment is not limited to this example. For example, the mobile device 20 transmits the reception intensity for each base station 30 measured by the information acquisition unit 220 to a position estimation server (not shown) that stores the base station information, and receives from the mobile device 20 at the position estimation server. The position information of the mobile device 20 may be estimated based on the signal strength and the stored base station information, and the position information estimated by the position estimation server may be received. In such a configuration, it is not necessary to store the base station information in the storage unit 224 of the mobile device 20, so that the storage capacity of the storage unit 224 can be reduced.

[1-3-2] Registration of regulation information Subsequently, when the mobile device 20 exists at a specific position, the regulation information that defines whether or not the communication unit 216 transmits information according to the specific position. Registration will be described with reference to FIGS. 7 and 8. FIG.

  FIG. 7 is an explanatory diagram showing an example of a registration screen for regulation information. FIG. 8 is an explanatory diagram showing an example of the regulation information recorded in the storage unit 224. The display screen generation unit 228 generates the regulation information registration screen 300 as shown in FIG. 7, and the display unit 232 displays the registration screen 300. Specifically, the regulation information registration screen 300 includes an address display 310 “Shibuya-ku Shibuya 2-chome”, an alias disclosure selection display 320, an alias setting display 330, a location disclosure selection display 340, and a save button 350. And a cancel button 360.

  The alias public selection display 320 is for selecting whether or not to cause the communication unit 216 to transmit a location alias as transmission information that expresses the location information “Shibuya-ku Shibuya 2-chome” indicated by the address display 310 in another format. Display. The user of the mobile device 20 operates the setting operation unit 236 to check the check column (square area) of the alias public selection display 320 so that the position alias is not transmitted, and to check the check column of the alias public selection display 320 A location alias can be sent without entering.

  The alias setting display 330 is a display for setting a location alias that expresses “Shibuya-ku Shibuya 2-chome” indicated by the address display 310 in another format. A user of the mobile device 20 can operate the setting operation unit 236 to input a position alias on the alias setting display 330. Examples of the location alias include information indicating a place such as a home, a company, and a cafe, and information indicating the state of the user of the mobile device 20 such as when returning home, during a meeting, or during leisure.

  When the mobile device 20 exists in the vicinity of “Shibuya-ku Shibuya 2-chome” indicated by the address display 310, the location disclosure selection display 340 displays location information (or latitude, longitude) “Shibuto-ku Shibuya 2-chome”. This is a display for selecting whether or not to cause the communication unit 216 to transmit. The user of the mobile device 20 operates the setting operation unit 236 to check the check field (square area) of the location disclosure selection display 340 so that the location information is not transmitted, and to check the check column of the location disclosure selection display 340. Position information can be transmitted without entering. When the regulation information shown in FIG. 7 is registered, the position information is not disclosed in the vicinity of “Shibuya-ku Shibuya 2-chome”, and “home” is disclosed as a position alias.

  The save button 350 is a display for determining the regulation information in the contents displayed on the regulation information registration screen 300. When the user of the portable device 20 operates the setting operation unit 236 and selects the save button 350, the recording unit 240 records the definition information of the contents displayed on the definition information registration screen 300 in the storage unit 224. The cancel button 360 is a display for canceling the regulation information registration screen 300. When the user of the mobile device 20 operates the setting operation unit 236 and selects the cancel button 360, the display screen generation unit 228 displays the regulation information. Generation of the registration screen 300 is canceled, and the registration screen 300 of the regulation information is deleted from the display unit 232.

  The recording unit 240 has a function as a registration unit that records the regulation information in the storage unit 224 based on a user operation on the regulation information registration screen 300, and the storage unit 224 holds the regulation information recorded by the recording unit 240. To do. The storage unit 224 stores and holds the regulation information in association with the position information, for example, as illustrated in FIG.

  Specifically, the location information of latitude “35.6597” and longitude “139.7010” is associated with the definition information that specifies that the location information is not disclosed and “home” is disclosed as a location alias. Yes. When the mobile device 20 exists at latitude “35.6597” and longitude “139.7019”, the specified information is such that the location information of latitude “35.6597” and longitude “139.7019” is not disclosed. ”Is disclosed. The regulation information may be valid within a predetermined range (for example, within a radius of 100 m) from the latitude “35.6597” and the longitude “139.7019”.

  Similarly, in the example illustrated in FIG. 8, provision information that defines that position information is disclosed to position information of latitude “35.6259” and longitude “139.7304”, and “company” is disclosed as a position alias. Are also associated. When the mobile device 20 is present at latitude “35.6259” and longitude “139.7304”, the specified information publishes position information of latitude “35.6259” and longitude “139.7304” and “company” The location alias is also disclosed. The position information associated with the regulation information is not limited to latitude and longitude, and may be an address or a unique name such as a building or a station name. Further, the position information associated with the regulation information may not be a point on the map but may be information indicating a predetermined range on the map.

[1-3-3] Transmission Control Based on Regulation Information Next, transmission control of information related to the location of the mobile device 20 based on the regulation information stored in the storage unit 224 will be described.

  The determination unit 244 determines whether or not the definition information corresponding to the position information of the mobile device 20 acquired by the information acquisition unit 220 is stored in the storage unit 224. For example, when the position information of the mobile device 20 is latitude “35.6259” and longitude “139.7304”, the determination unit 244 stores the position information of latitude “35.6259” and longitude “139.7304”. It is determined whether or not the associated regulation information is stored in the storage unit 224. Note that the determination unit 244 may determine whether or not the definition information associated with the position information whose difference from the position information of the mobile device 20 is within a predetermined range is stored in the storage unit 224.

  When the determination unit 244 determines that the definition information corresponding to the position information of the mobile device 20 acquired by the information acquisition unit 220 is stored in the storage unit 224, the extraction unit 248 adds the position information of the mobile device 20 to the position information. Corresponding regulation information is extracted from the storage unit 224.

  The transmission control unit 252 controls transmission of information according to the position of the mobile device 20 from the communication unit 216 based on the regulation information extracted by the extraction unit 248. Specifically, if the regulation information extracted by the extraction unit 248 includes a regulation that prohibits the disclosure of the location information, the transmission control unit 252 sends the location information of the mobile device 20 to the communication unit 216. Do not send. In addition, if the location information is included in the regulation information extracted by the extraction unit 248, the transmission control unit 252 causes the communication unit 216 to transmit the location alias included in the regulation information. The location information from the communication unit 216 or the transmission destination of the location alias may be a wireless communication device such as the mobile device 20B or 20C registered in advance as a group.

  Further, the transmission control unit 252 determines that the definition information corresponding to the location information of the mobile device 20 acquired by the information acquisition unit 220 is not stored in the storage unit 224, and the extraction unit 248 determines that the mobile device 20 When the regulation information corresponding to the position information 20 is not extracted from the storage unit 224, the position information of the mobile device 20 may be transmitted to the communication unit 216 or may not be transmitted. As can be seen from the above description, the information according to the position of the mobile device 20 includes the position alias of the mobile device 20 or the position alias included in the regulation information.

  Therefore, the transmission control unit 252 causes the communication unit 216 to transmit only the location information of the portable device 20, or causes the communication unit 216 to transmit only the location alias of the portable device 20. When both of the position alias and the position alias are transmitted, the communication unit 216 may not transmit both the position information and the position alias of the mobile device 20.

  Note that the regulation information includes validity period information indicating the validity period of the regulation information, and the extraction unit 248 corresponds to the position information acquired by the information acquisition unit 220 and stores the regulation information within the validity period from the storage unit 224. It may be extracted. Here, the user of the mobile device 20 may not want to disclose to a third party that he / she is in a specific place and in a specific time zone. For example, the user of the mobile device 20 may disclose to the third party that he / she is at work on weekdays, but may not want to disclose to the third party that he / she is at work on holidays.

  In such a case, if the effective period information indicating a holiday is included in the regulation information for prohibiting the transmission of the location information at the workplace, the transmission control unit 252 may set the portable device 20 on the holiday to the user's workplace. Transmission of position information can be prohibited when 20 is present. That is, by providing an effective period in the regulation information, it is possible to control whether or not to disclose the position information of the mobile device 20 according to the position of the mobile device 20 and the current time. It is possible to further enhance the protection of information related to the locations of the 20 users.

[1-3-4] Display Example of Other Person's Position Information on Mobile Device Next, display examples on the mobile device 20 of information related to the location of other mobile devices 20B, 20C, etc., are shown in FIG. 9 and FIG. To explain.

  FIG. 9 is an explanatory diagram showing a display example of information related to the location of another mobile device 20B or 20C. The position display screen 400 shown in FIG. 9 includes a current position display 410 and user position displays 420 to 490. The position display screen 400 is generated by the display screen generation unit 228 of the mobile device 20 and displayed on the display unit 232. In the following, for convenience of explanation, another mobile device will be described with reference numeral 21.

  The user position display 420 indicates that the mobile device 21 used by the user “Five” is present at the position indicated by the location information “Shibuhi-ku Sakuragaoka-cho” and is present at a position 284 m away from the mobile device 20. Yes. Note that the icon attached to the leftmost part of the user position display 420 indicates that the mobile device 21 used by the user “Five” is in an online state.

  In addition, the user position display 430 is present at a position indicated by the position information “Minami Aoyama 5-chome, Kohoku Ward” where the portable device 21 used by the user “Taro” is located at a position 1.1 km away from the portable device 20. It is shown that. Note that the icon attached to the leftmost part of the user position display 430 indicates that the mobile device 21 used by the user “Taro” is offline.

  The user position display 440 indicates that the user “Smile” has “lunch” and the mobile device 21 used by the user “Smile” is present at a position 2.7 km away from the mobile device 20. ing. In addition, when the position information is not received from the portable device 21 and only the position alias is received, the distance between the portable device 21 and the portable device 20 may not be displayed.

  In addition, the user position display 450 indicates that the user “Buli” is in the “company” and the mobile device 21 used by the user “Buli” is present at a position 4.4 km away from the mobile device 20. . Note that the icon attached to the leftmost part of the user position display 450 indicates that the mobile device 21 used by the user “Buli” is in an online state but has not been operated for a predetermined period.

  Similarly, the user position display 460 indicates that the user “Peco” is in “Odaiba” and the mobile device 21 used by the user “Peco” is present at a position 8 km away from the mobile device 20. . The user position display 470 indicates that the user “Kuro” is “business trip” and the mobile device 21 used by the user “Kuro” is present at a position 366 km away from the mobile device 20.

  Further, the user position display 480 and the user position display 490 do not include any position information or position alias. Therefore, from the user position display 480 and the user position display 490, information on the location of the mobile device 21 used by the user “Seven” and the mobile device 21 used by the user “Shiro” is unknown.

  As described above, the user position displays of other users can be sorted and displayed on the display unit 232 in the order of the distance between the mobile device 21 and the mobile device 20 used by the other user. On the other hand, the positions of other users can be displayed on the display unit 232 by being superimposed on the map screen as shown in FIG.

  FIG. 10 is an explanatory diagram showing another display example of information related to the location of another mobile device 21. As shown in FIG. 10, the display screen generation unit 228 displays the position of the other mobile device 21 on the map screen based on the position information of the other mobile device 21 received via the communication unit 216. The position display screen 50 on which .about.55 is superimposed can be generated and displayed on the display unit 232.

  The user position display 56 indicates a user of the mobile device 21 whose communication unit 216 has not received the position information. Specifically, FIG. 10 shows that the position information of the mobile device 21 used by the user “Seven” and the user “Shiro” included in the user position display 56 is unknown.

[1-4] Operation of Portable Device According to this Embodiment Next, a wireless communication method executed in the portable device 20 according to this embodiment will be described with reference to FIG.

  FIG. 11 is a flowchart illustrating a flow of a wireless communication method executed in the mobile device 20 according to the present embodiment. First, the recording unit 240 of the mobile device 20 records the regulation information in the storage unit 224 based on a user operation on the setting operation unit 236 (S504). That is, the recording unit 240 sets the regulation information based on a user operation on the setting operation unit 236.

  Then, the information acquisition unit 220 acquires position information indicating the current position of the mobile device 20 (S508). Subsequently, the determination unit 244 determines whether or not the definition information corresponding to the position information of the mobile device 20 is stored in the storage unit 224 (S512). When the determination unit 244 determines that the regulation information corresponding to the position information of the mobile device 20 is not stored in the storage unit 224, the transmission control unit 252 causes the communication unit 216 to transmit the position information of the mobile device 20 (S516). ).

  If it is determined in S512 that the regulation information corresponding to the position information of the mobile device 20 is stored in the storage unit 224, the extraction unit 248 extracts the regulation information corresponding to the position information of the mobile device 20 from the storage unit 224. (S520). Then, the transmission control unit 252 determines whether to disclose the position information of the mobile device 20 based on the extracted regulation information (S524). If the transmission control unit 252 determines to disclose the position information, the transmission control unit 252 determines whether the extracted definition information includes a position alias (S528). If the transmission control unit 252 determines that the extracted alias information does not include a position alias, the transmission control unit 252 proceeds to S516 and causes the communication unit 216 to transmit only the position information.

  On the other hand, if the transmission control unit 252 determines that the extracted definition information includes a location alias, the transmission control unit 252 causes the communication unit 216 to transmit the location information of the portable device 20 and the location alias included in the definition information (S532). .

  When the transmission control unit 252 determines in S524 that the location information of the mobile device 20 is not disclosed, the transmission control unit 252 determines whether or not the extracted definition information includes a location alias (S536). If the transmission control unit 252 determines that the extracted definition information includes a location alias, the transmission control unit 252 causes the communication unit 216 to transmit the location alias included in the extracted definition information (S540). On the other hand, if the transmission control unit 252 determines that the extracted definition information does not include a location alias, the transmission control unit 252 prohibits the communication unit 216 from transmitting any of the location information and the location alias (S544).

  FIG. 12 is an explanatory diagram showing a specific example of information transmitted from the communication unit 216. When the process of S516 in FIG. 11 is executed, that is, when the transmission control unit 252 transmits only the position information to the communication unit 216, for example, as shown in FIG. Only the position information “.6597 longitude 139.0719” is transmitted from the communication unit 216.

  Further, when the process of S532 in FIG. 11 is executed, that is, when the transmission control unit 252 transmits both the location information and the location alias to the communication unit 216, for example, as shown in FIG. ”And location information“ Shibuya-ku Shibuya 2-chome Longitude 35.6597 Longitude 139.0719 ”are transmitted from the communication unit 216.

  Further, when the process of S540 in FIG. 11 is executed, that is, when the transmission control unit 252 transmits only the location alias to the communication unit 216, for example, as shown in FIG. Only from the communication unit 216. Further, when the process of S544 in FIG. 11 is executed, that is, when the transmission control unit 252 prohibits transmission of either position information or position aliases, as shown in FIG. Neither information nor location aliases are sent.

  As described above, in the mobile device 20 according to the first embodiment of the present invention, the information acquisition unit 220 acquires position information indicating the position of the mobile device 20. In addition, regulation information that defines information according to the position of the mobile device 20 from the communication unit 216 is stored in the storage unit 224 in association with arbitrary position information, and the extraction unit 248 includes the position information of the mobile device 20. Corresponding regulation information is extracted from the storage unit 224, and the transmission control unit 252 controls transmission of information according to the position of the mobile device 20 from the communication unit 216 according to the extracted regulation information. That is, the portable device 20 can control transmission of information according to the position of the own device based on the position of the own device.

  Further, the regulation information includes information that regulates whether or not the position information of the mobile device 20 is transmitted to the communication unit 216, and the transmission control unit 252 follows the regulation information extracted by the extraction unit 248 from the communication unit 216. It is possible to control whether or not the position information of the mobile device 20 is transmitted. Therefore, since the portable device 20 can control whether or not to transmit the position information of the own device according to the presence position of the own device, that is, the position of the user of the portable device 20, the portable device 20 and the portable device 20. It is possible to enhance the protection of information related to the location of users.

  Further, the regulation information includes a location alias that represents the location information associated with the storage unit 224 in another format, and the transmission control unit 252 uses the location alias included in the regulation information extracted by the extraction unit as a communication unit. 216 can be transmitted. Therefore, if the transmission control unit 252 transmits the location alias to the communication unit 216 based on the regulation information, the information corresponding to the location of the mobile device 20 can be obtained without disclosing the location information of the system to a third party. It can be made public.

[1-5] Modified Example of Embodiment In the above, information indicating the position of the mobile device 20 has been described as an example of position information, but the position information is not limited to such information. That is, the information acquired by the information acquisition unit 220 and the information stored in association with the regulation information by the storage unit 224 are not limited to information indicating the position. For example, the position information may be information uniquely obtained at a certain position. That is, the information acquisition unit 220 acquires information uniquely obtained at the position of the mobile device 20, and the extraction unit 248 extracts regulation information corresponding to the information uniquely obtained at the position of the mobile device 20 from the storage unit 224. Also good. Hereinafter, this will be described in detail with reference to FIGS. 13 and 14.

  The intensity pattern (wireless situation) of signals received from a plurality of base stations 30 at a certain position of the portable device 20 is a unique wireless condition at that position, and there are few cases where the same wireless condition is obtained at other positions. . Therefore, if the wireless status of the mobile device 20 is acquired, the position of the mobile device 20 can be estimated almost uniquely. In this way, the modification example is proposed based on the situation that a specific radio situation can be obtained at a certain position.

  In the modification example, the storage unit 224 stores, for example, the wireless status illustrated in FIG. 13 in advance in association with the regulation information including the position alias.

  FIG. 13 is an explanatory diagram showing an example of the regulation information stored in the storage unit 224. As shown in FIG. 13, location aliases such as “home” and “company” are associated with the reception strength of each base station 30 as the wireless status. Specifically, the location alias “home” has a reception intensity of a signal transmitted from the base station 30A whose base station ID is “30A” is “−90 Dbm”, and the base station ID is “30B”. The reception intensity of a signal transmitted from a certain base station 30B is “−70 Dbm”, and the reception intensity of a signal transmitted from the base station 30C whose base station ID is “30C” is “−80 Dbm”, This is associated with a radio situation in which the reception intensity of the signal transmitted from the base station 30D having the base station ID “30D” is “−75 Dbm”. Similarly, the location aliases “company” and “hangout” are also associated with a radio situation including a combination of a plurality of base station IDs and reception strengths.

  The information acquisition unit 220 measures the reception intensity of the signal transmitted from the surrounding base station 30 for each base station 30. And the radio | wireless condition of the portable apparatus 20 containing the combination of base station ID and receiving intensity is acquired.

  The determination unit 244 determines whether or not the regulation information associated with the wireless status that matches or is similar to the wireless status of the mobile device 20 acquired by the information acquisition unit 220 is stored in the storage unit 224. The extraction unit 248 extracts regulation information associated with a wireless status that matches or is similar to the wireless status of the mobile device 20 from the storage unit 224.

Here, a method in the case of making an analogy determination between the wireless situation A and the wireless situation B is illustrated.
(1) When a predetermined number or more of base station IDs included in the wireless situation A and base station IDs included in the wireless situation B match, it is determined that the wireless situation A and the wireless situation B match or are similar. When the base station ID included and the base station ID included in the radio status B do not match a predetermined number or more, it is determined that the radio status A and the radio status B do not match or are not similar.
(2) When the base station ID having the reception strength included in the radio situation A is equal to or higher than the predetermined value and the base station ID having the reception strength included in the radio situation B equal to or higher than the predetermined value match the radio situation A It is determined that the radio situation B matches or is similar, and a base station ID whose reception intensity included in the radio situation A is a predetermined value or more and a base station ID whose reception intensity included in the radio situation B is a predetermined value or more are a predetermined number or more. If they do not match, it is determined that the radio status A and the radio status B do not match or are not similar.
(3) The correlation coefficient between the base station ID and the reception strength set of the radio situation A and the radio situation B is calculated, and if the correlation coefficient is equal to or larger than the set value, the radio situation A and the radio situation B are identical or similar. If it is determined that the correlation coefficient is equal to or less than the set value, it is determined that the radio situation A and the radio situation B are not the same or similar.
(4) It is possible to make an analogy judgment between the wireless situation A and the wireless situation B using any method and any reference.

  The transmission control unit 252 causes the communication unit 216 to transmit the position alias included in the regulation information extracted by the extraction unit 248. Therefore, if the storage unit 224 stores, for example, the regulation information including the location alias “home” and the wireless status of the home in association with each other, the information acquisition unit 220 can be used when the mobile device 20 exists at home. , The extraction unit 248 extracts the regulation information including the location alias “home” from the storage unit 224, and the transmission control unit 252 can cause the communication unit 216 to transmit the location alias “home”. .

  According to this configuration, the process of estimating the position of the mobile device 20 based on the reception intensity of the signal received by the mobile device 20 from the surrounding base stations 30 for each base station 30 becomes unnecessary. Therefore, there is no need to store the base station information of each base station 30 in the mobile device 20, and there is no need to inquire the current location to the location estimation server that estimates the location of the mobile device 20, and the hardware scale of the mobile device 20 and The processing load can be reduced.

  FIG. 14 is a flowchart showing the flow of such a modification of the present embodiment. First, the communication unit 216 receives a signal transmitted from each surrounding base station 30 (S554). Then, the information acquisition unit 220 acquires the wireless status of the mobile device 20 based on the signal received by the communication unit 216. Subsequently, the determination unit 244 determines whether or not a wireless state that matches or is similar to the wireless state of the mobile device 20 is stored in the storage unit 224 (S558).

  If it is determined that a wireless status that matches or is similar to the wireless status of the mobile device 20 is not stored in the storage unit 224, the transmission control unit 252 does not cause the communication unit 216 to transmit information regarding the position of the mobile device 20 (S562). ). On the other hand, when it is determined that a wireless status that matches or is similar to the wireless status of the mobile device 20 is stored in the storage unit 224, the transmission control unit 252 The location alias included in the regulation information associated with the situation is transmitted to the communication unit 216 (S566).

  3 does not necessarily have to be mounted on a single device, and may be mounted on a plurality of devices that are separated from each other. For example, a device in which the information acquisition unit 220 is mounted may be configured separately from a device in which the storage unit 224, the determination unit 244, the extraction unit 248, and the transmission control unit 252 are mounted.

[2] Description of Second Embodiment of the Present Invention Next, a second embodiment of the present invention will be described. Specifically, the object of the second embodiment of the present invention, the function and operation of the management server according to the second embodiment of the present invention will be described with reference to FIGS.

[2-1] Purpose of this Embodiment According to the first embodiment, whether or not to disclose the location information of the mobile device 20 according to the location of the mobile device 20, that is, the location of the user of the mobile device 20. Could be controlled. However, even if the location information of the mobile device 20 is disclosed to other mobile devices 21 that are located several hundred kilometers away from the mobile device 20, for example, the location information of the mobile device 20 cannot be effectively used in the mobile device 21 in many cases. .

  Thus, the second embodiment of the present invention has been created with the above circumstances as a focus. According to the management server 40 according to the second embodiment of the present invention, whether or not to transmit the location information of the mobile device 20 to the other mobile device 21 according to the distance between the mobile device 20 and the other mobile device 21. Can be controlled. Hereinafter, the management server 40 as an example of such an information processing apparatus will be described in detail.

[2-2] Function of Management Server in the Present Embodiment FIG. 15 is an explanatory diagram showing a configuration example of the wireless communication system 2 according to the present embodiment. As shown in FIG. 15, in the present embodiment, each portable device 20 is connected via a management server 40.

  FIG. 16 is a functional block diagram showing configurations of the mobile device 20 and the management server 40 according to the present embodiment. The mobile device 20 includes a communication unit 216, an information acquisition unit 220, a storage unit 224, a display screen generation unit 228, a display unit 232, and a setting operation unit 236, and is managed as an example of an information processing device. The server 40 includes a communication unit 266, an information acquisition unit 270, a calculation unit 272, a storage unit 274, and a transmission control unit 276.

  When the distance between the mobile device 20 and the mobile device 21 exceeds a predetermined threshold, the management server 40 does not transmit the position information of the mobile device 20 to the mobile device 21, and the distance between the mobile device 20 and the mobile device 21. Is below a predetermined threshold, the location information of the mobile device 20 is set to the mobile device 21. The mobile device 20 can set the predetermined threshold. A method for setting the predetermined threshold in the portable device 20 will be described with reference to FIG.

  FIG. 17 is an explanatory diagram showing an example of the regulation information registration screen 600. The regulation information registration screen 600 is a screen generated by the display screen generation unit 228 and displayed on the display unit 232. In the example shown in FIG. 17, the regulation information registration screen 600 includes an address display 610 of “Shibuya-ku Shibuya 2-chome”, an alias disclosure selection display 620, an alias setting display 630, a disclosure range setting display 640, A save button 650 and a cancel button 660 are included. The address display 610, the alias publication selection display 620, and the alias setting display 630 are substantially the same as the address display 310, the alias publication selection display 320, and the alias setting display 330 described with reference to FIG. Therefore, the description is omitted.

  The disclosure range setting display 640 includes a disclosure selection display 642 and a range setting display 644. The disclosure selection display 642 is a display for selecting whether to disclose the location information of the mobile device 20. In the example illustrated in FIG. 17, the disclosure selection display 642 is checked, and the disclosure of the location information of the mobile device 20 is selected.

  The range setting display 644 sets whether to disclose the position information of the portable device 20 to other portable devices 21 in which range when the disclosure of the position information of the portable device 20 is selected in the disclosure selection display 642. It is a display for. In the example illustrated in FIG. 17, the position information is disclosed from the mobile device 20 to another mobile device 21 within the range of the distance set in the range setting display 644. That is, the management server 40 publishes the position information of the mobile device 20 to the mobile device 21 within the distance range of the mobile device 20 and a predetermined threshold, and the range setting display 644 is used to set the predetermined threshold. It is a display.

  The save button 650 is a display for determining the regulation information as the content displayed on the regulation information registration screen 600. When the user of the portable device 20 operates the setting operation unit 236 and selects the save button 650, the communication unit 216 transmits the specified information displayed on the specified information registration screen 600 to the management server 40. Then, the management server 40 stores the regulation information received from the mobile device 20 in the storage unit 274. The cancel button 660 is a display for canceling the regulation information registration screen 600. When the user of the mobile device 20 operates the setting operation unit 236 and selects the cancel button 660, the display screen generation unit 228 displays the regulation information. Generation of the registration screen 600 is stopped, and the regulation information registration screen 600 is deleted from the display unit 232.

  The storage unit 274 of the management server 40 stores the regulation information received from each mobile device 20 as shown in FIG.

  FIG. 18 is an explanatory diagram illustrating an example of the regulation information stored in the storage unit 274 of the management server 40. As illustrated in FIG. 18, the management server 40 stores a device ID that identifies each mobile device 20, a reference position, and a position information disclosure range in association with each other.

  In the example illustrated in FIG. 18, when the mobile device 20 with the device ID “1” exists at the latitude “35.0012” and the longitude “135.012”, the mobile device whose distance from the mobile device 20 is within 500 m. If the mobile device 20 having the device ID “2” is present at latitude “35.0110” and longitude “135.024”, the mobile device 20 is specified information indicating that the location information of the mobile device 20 is transmitted to the device 21. Stipulated information indicating that the location information of the mobile device 20 is transmitted to the mobile device 21 whose distance is within 10 km, the mobile device 20 whose device ID is “3” is the latitude “35.0005”, and the longitude “135.002” ”Includes regulation information indicating that the location information of the mobile device 20 is transmitted to the mobile device 21 whose distance from the mobile device 20 is within 1 km.

  Note that the storage unit 274 of the management server 40 is similar to the storage unit 224 of the portable device 20, for example, a nonvolatile memory such as an EEPROM or ERPM, a magnetic disk such as a hard disk or a disk-type magnetic medium, a CD-R / It may be a storage medium such as an optical disk such as RW, DVD-R / RW / + R / + RW / RAM and BD (registered trademark) -R / BD-RE, or an MO disk.

  The information acquisition unit 270 of the management server 40 acquires information that can estimate the position of each mobile device 20 (for example, location information of each mobile device 20, wireless status, etc.) from each mobile device 20. The calculation unit 272 calculates the distance between the mobile devices 20 based on the information that can be estimated the position of each mobile device 20 acquired by the information acquisition unit 270.

  The transmission control unit 276 controls information to be transmitted to the communication unit 266 based on the distance between the mobile devices 20 calculated by the calculation unit and the regulation information stored in the storage unit 274. For example, when the mobile device 20 with the device ID “1” exists at the latitude “35.0012” and the longitude “135.012” and is 1 km away from the mobile device 21 with the device ID “5”, The transmission control unit 276 may prohibit transmission of the location information of the mobile device 20 from the communication unit 266 to the mobile device 21 and may transmit only the location alias of the mobile device 20.

  In addition, although the case where the reference position of the portable device 20 is included in the regulation information has been described above, the regulation information does not necessarily include the reference position of the portable device 20. That is, whether or not the management server 40 discloses the position information of the mobile device 20 to the other mobile device 21 based only on the distance between the mobile device 20 and the other mobile device 21 regardless of the position of the mobile device 20. May be controlled.

[2-3] Operation of Management Server in this Embodiment Next, an information processing method executed in the mobile device 20 and the management server 40 according to this embodiment will be described with reference to FIGS. 19 and 20.

  FIG. 19 is a flowchart showing an operation flow of the mobile device 20 according to the present embodiment. First, the portable device 20 transmits the disclosure range of the position information set based on the user operation on the setting operation unit 236 to the management server 40 as the regulation information (S704). Subsequently, the information acquisition unit 220 acquires the position information of the mobile device 20 (S708). Thereafter, the communication unit 216 transmits the device ID of the mobile device 20 and the position information to the management server 40 (S712). Here, the mobile device 20 may also transmit the location alias of the mobile device 20 to the management server 40.

  FIG. 20 is a flowchart showing the flow of the information processing method executed in the management server 40 according to the present embodiment. First, the management server 40 receives the disclosure range of the position information from each portable device 20 as the regulation information, and the storage unit 274 stores it (S750). Subsequently, the information acquisition unit 270 receives the position information and device ID of each portable device 20 (S754).

  Thereafter, the calculation unit 272 calculates the distance between the mobile devices 20 based on the position information of each mobile device 20 received by the information acquisition unit 270 (S758). Then, the transmission control unit 276 determines whether or not the distance between a certain portable device A and another portable device is within the disclosure range of the position information of the portable device A in the regulation information stored in the storage unit 274. Based on the determination (S762). When it is determined that the distance between a certain portable device A and another portable device is not within the disclosure range of the position information of the portable device A, the transmission control unit 276 selects any one of unprocessed portable devices as another portable device. The process returns to S762 (S766).

  In S762, when it is determined that the distance between a certain portable device A and another portable device is within the disclosure range of the position information of the portable device A, the transmission control unit 276 transmits the communication unit 266 to another portable device. Then, the position information of the portable device A is transmitted (S770). Thereafter, the transmission control unit 276 determines whether or not the processing has been completed for all other mobile devices A (S774). If the process has not been completed for all other portable devices of the portable device A, the process returns to S766. If the process has been completed for all other portable devices of the portable device A, the information processing method is terminated. . Note that when the location alias of the mobile device A is acquired, the transmission control unit 276 transmits the location alias of the mobile device A to the other mobile device regardless of the distance between the mobile device A and the other mobile device. May be.

[3] Summary As described above, the mobile device 20 according to the first embodiment of the present invention provides the location information of the device according to the location of the device, that is, the location of the user of the mobile device 20. Since it is possible to control whether or not to transmit, it is possible to enhance the protection of information regarding the mobile device 20 and the location of the user of the mobile device 20. Further, the regulation information includes a location alias that represents the location information associated with the storage unit 224 in another format, and the transmission control unit 252 uses the location alias included in the regulation information extracted by the extraction unit as a communication unit. 216 can be transmitted. Therefore, if the transmission control unit 252 transmits the location alias to the communication unit 216 based on the regulation information, the information corresponding to the location of the mobile device 20 can be obtained without disclosing the location information of the system to a third party. It can be made public.

  Further, the mobile device 20 according to the first embodiment of the present invention is a process of estimating the position of the mobile device 20 based on the reception strength of each base station 30 of the signal received by the mobile device 20 from the surrounding base stations 30. Is not necessarily required. Therefore, there is no need to store the base station information of each base station 30 in the mobile device 20, and there is no need to inquire the current location to the location estimation server that estimates the location of the mobile device 20, and the hardware scale of the mobile device 20 and The processing load can be reduced.

  Also, the management server 40 according to the second embodiment of the present invention determines whether or not to transmit the location information of the mobile device 20 to the other mobile device 21 according to the distance between the mobile device 20 and the other mobile device 21. Can be controlled.

  In addition, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the example which concerns. 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.

  For example, each step in the processing of the portable device 20 and the management server 40 in the present specification does not necessarily have to be processed in time series in the order described in the flowchart, and is performed in parallel or individually (for example, , Parallel processing or object processing).

  In the description of the second embodiment, the case where the management server 40 transmits the position information of the mobile device 20 to another mobile device 21 has been described. However, the present invention is not limited to such an example. For example, when the management server 40 calculates the distance between the portable device 20 and the portable device 21 and the calculated distance is within the disclosure range of the position information of the portable device 20, the position information to the portable device 20 is stored in the portable device 20. May be permitted, and the mobile device 20 may transmit the position information of its own device to the mobile device 21.

  In addition, it is possible to create a computer program for causing hardware such as the CPU, ROM, and RAM incorporated in the mobile device 20 and the management server 40 to perform the same functions as the configurations of the mobile device 20 and the management server 40 described above. It is. A storage medium storing the computer program is also provided. Also, a series of processing can be realized by hardware by configuring each functional block shown in the functional block diagrams of FIGS. 3 and 16 with hardware.

DESCRIPTION OF SYMBOLS 1, 2 Wireless communication system 20 Portable apparatus 30 Base station 40 Management server 216,266 Communication part 220,270 Information acquisition part 224,274 Storage part 228 Display screen generation part 232 Display part 236 Setting operation part 240 Recording part 244 Determination part 248 Extraction unit 252, 276 Transmission control unit 272 Calculation unit

Claims (6)

A storage unit that stores location aliases in association with radio conditions;
A location alias acquisition unit that acquires from the storage unit a location alias associated with a radio situation that matches or is similar to the radio situation obtained by measuring the received intensity of the signal transmitted from the base station;
A transmission unit that transmits the position alias acquired by the position alias acquisition unit to another device;
An information processing apparatus comprising: The information processing apparatus includes:
An information acquisition unit for measuring the reception intensity of the signal transmitted from the base station and acquiring the wireless status;
A display unit for displaying the position alias acquired by the position alias acquisition unit,
The information processing apparatus according to claim 1, further comprising: Validity period information is further associated with the wireless status and the location alias in the storage unit,
Wherein the position alias acquisition unit acquires the position alias is associated with the effective period information including the wireless status obtained by the reception intensity measurement, and the current time in the valid period, information according to claim 1 or 2 Processing equipment . The information processing apparatus according to claim 1, further comprising a registration unit that registers the location alias in the storage unit in association with the wireless status. Computer
A storage unit that stores location aliases in association with radio conditions;
A location alias acquisition unit that acquires from the storage unit a location alias associated with a radio situation that matches or is similar to the radio situation obtained by measuring the received intensity of the signal transmitted from the base station;
A transmission unit that transmits the position alias acquired by the position alias acquisition unit to another device;
Program to function as Acquiring a location alias corresponding to a radio situation that matches or resembles a radio situation obtained by measuring the received intensity of a signal transmitted from a base station from a storage unit that stores a correspondence relationship between the radio situation and the location alias. ,
Sending the obtained location alias to another device;
Including an information processing method.

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