JP2009188922A - Advertisement providing system, method for providing advertisement, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an advertisement providing system etc. which provides an advertisement suitably according to a place or an user, using an SSID of an access point of a wireless LAN located all over the town. <P>SOLUTION: In the advertisement providing system, a terminal device detects an electromagnetic wave beacon which are located all over the town emit (501), stores an SSID history, and, when a relevant history is transmitted to a server at predetermined timing (502), the server device transmits to the terminal device advertisement information matched with the SSID included in the relevant history (503), thereby providing an advertisement according to the place of a user and the moving direction of the user, while considering user's privacy. When the access point device is not under the control of the server, the terminal device can add one in which a hash function is applied in place of the SSID to the history, thereby privacy related to the SSID can be considered. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  INDUSTRIAL APPLICABILITY The present invention provides an advertisement suitable for appropriately providing an advertisement according to a place and a user using an SSID (Service Set IDentifier) of a wireless LAN (Local Area Network) access point device arranged in a city. The present invention relates to a system, an advertisement providing method, and a program for realizing these on a computer.

  Conventionally, a service for connecting to the Internet via a wireless LAN access point device that can be used by the public in a city has been provided. One or a plurality of identifiers called SSIDs (sometimes called ESSIDs (Extended SSIDs)) are assigned to access points of a wireless LAN, and the terminal device refers to the SSIDs so that the terminal device can communicate with a plurality of access points. By selecting one of the points and associating, it becomes possible to access the Internet.

Techniques using such wireless LAN access points are disclosed in the following documents.
JP 2004-088440 A JP 2006-245906 A

  Here, [Patent Document 1] is intended to manage the location of a wireless LAN terminal device in real time, and each access point notifies the location management server that an association with each terminal device has been established. The location management server records the location of the access point as the current location of the user based on the notified MAC address of the terminal device.

  [Patent Document 2], on the other hand, adds a distribution information based on text information to a radio wave beacon from an access point and transmits it to a terminal device that has not established a connection with the access point. It is possible to distribute information while suppressing its use.

  However, depending on the type of service provided, grasping the location of the terminal device in real time may not be desirable from the viewpoint of privacy. There is a desire to prevent it from occurring. While text information using radio wave beacons may be insufficient as an amount of information for providing advertisements to users, there is a desire to appropriately select and provide advertisements unnecessary for users to reduce the amount of communication. There is also.

  The present invention solves the above-described problems, and is suitable for providing an advertisement appropriately depending on a place or a user using an SSID of a wireless LAN access point device arranged in a city. It is an object of the present invention to provide a providing system, an advertisement providing method, and a program for realizing these on a computer.

  In order to achieve the above object, the following invention is disclosed in accordance with the principle of the present invention.

  An advertisement providing system according to a first aspect of the present invention includes a server device and a terminal device. The server device includes an advertisement storage unit, a history reception unit, an advertisement acquisition unit, and an advertisement transmission unit. The apparatus includes a detection unit, a history storage unit, a history transmission unit, an advertisement reception unit, and an advertisement display unit, and is configured as follows.

  First, in the server device, the advertisement storage unit stores SSIDs of a plurality of wireless LAN access point devices arranged in the city and advertisement information in association with each other.

  The access point device may be managed by the server device, but is not necessarily required. The advertisement information represents an advertisement that is considered to be particularly useful when presented in the vicinity of a place where the access point is installed. That is, in this advertisement providing system, the installation location of the access point device is used as a unit for advertisement placement.

  On the other hand, in the terminal device, the detection unit detects the SSID of the wireless LAN access point device arranged in the city, the history storage unit stores the history of the detected SSID, and the history transmission unit stores the The history of the SSID is transmitted to the server device.

  The terminal device used by the user has a wireless LAN access function, but a contract for enabling Internet connection via an access point device arranged in the city may not be made. This is because the SSID is notified to the terminal device by a radio wave beacon from the access point.

  The terminal device stores a history of SSIDs of access point devices that are arranged in the city and are not necessarily available to themselves.

  The history is fulfilled at a predetermined timing, for example, when an internet connection is possible in the vicinity of a wireless LAN access point device that can be used by itself, when it is connected to a wired LAN, or when these conditions are satisfied. In addition, when there is an instruction from the user, it is transmitted to the server device. For this reason, the location of the user is not grasped by the server in real time, and the advertisement is typically acquired based on the user's voluntary intention, so it is considered that there will be no privacy problem. .

  On the other hand, in the server device, the history receiving unit receives the history of the SSID transmitted from the terminal device, and the advertisement acquisition unit refers to the advertisement storage unit and associates the advertisement with the SSID included in the received history. The advertisement information stored in the storage unit is acquired, and the advertisement transmission unit transmits the acquired advertisement information to the terminal device.

  In the server device, an advertisement associated with the SSID, that is, an advertisement associated with the place where the access point device is arranged is transmitted to the user. Since the advertiser advertises in association with the place, it is considered that the advertisement effect can be further enhanced by taking such an advertisement distribution technique.

  Further, in the terminal device, the advertisement receiving unit receives the advertisement information transmitted from the server device, and the advertisement display unit displays the received advertisement information.

  A user with a terminal device can calmly view the display screen of the terminal device, not when it is difficult to concentrate on the display screen of the terminal device, such as while walking or driving a car. Since advertisements are often received at the timing, it is considered that the advertising effect can be further enhanced.

  According to the present invention, an SSID of a wireless LAN access point device arranged in a city is used to prevent a privacy problem from occurring as much as possible according to a place, and an advertisement can be appropriately and highly effective. Will be able to.

  In the advertisement providing system of the present invention, the SSID includes a character string indicating the type of advertisement stored in the advertisement storage unit in association with the SSID, and the history transmission unit stores the stored SSID. An SSID including a character string representing the type of advertisement desired by the user can be extracted from the history, and the history of the extracted SSID can be transmitted.

  As described above, the SSID can arbitrarily set up to 32 alphanumeric characters in the current standard. Part of this character string is a character string representing the type of advertisement. Note that, as will be described later, a character string that identifies the access point device itself is typically set in the remaining portion.

  On the terminal device side, out of the SSIDs remaining in the history, only the SSID that provides the type of advertisement desired by the user is extracted and transmitted to the server device. Eventually, only the type of advertisement desired by the user of the terminal device is provided from the server device.

  ADVANTAGE OF THE INVENTION According to this invention, only the kind of advertisement which a user desires can be discriminate | determined appropriately, an advertisement can be provided, suppressing a communication load, and an advertising effect can be heightened.

  In the advertisement providing system of the present invention, the access point device managed by the server device among the plurality of access point devices has a plurality of SSIDs having different character strings representing advertisement types, The terminal device can be configured to accept access to the wireless LAN via each of the SSIDs.

  In the above invention, the access point device does not necessarily have to be under the control of the server device, and any device can be applied as long as it is located in the city and emits the SSID with a radio beacon. In the present invention, a certain rule is determined for the SSID of the access point device under the management of the server device.

  According to the present invention, by assigning a plurality of SSIDs to one access point device, it is possible to assign a plurality of types of advertisement information to one place, and according to user preference even in the same place. Therefore, it becomes possible to provide advertisements appropriately.

  In the advertisement providing system of the present invention, the SSID of the access point device managed by the server device is a type character string indicating the type of the advertisement and an identification for identifying the access point device from other access point devices. A character string is combined, and can be configured as follows.

  That is, the server device includes a manuscript input receiving unit, a server setting unit, and a setting notification unit.

  Here, the submission input receiving unit represents an identification character string for identifying an access point device associated with the advertisement to be published, advertisement information representing the content of the advertisement to be published, and the type of the advertisement to be published. Accepts a draft input specifying a type string.

  As described above, this advertisement providing system provides advertisements in units of access points.

  On the other hand, the server setting unit stores the SSID obtained by combining the identification character string and the type character string designated in the accepted draft input and the advertisement information designated in the draft input in association with each other in the advertisement storage unit. .

  As a result, the access point device and the advertisement information are linked.

  Further, the setting notification unit notifies the access point of the identification character string designated in the accepted draft input with the SSID obtained by combining the identification character string and the type character string.

  On the other hand, each of the access point devices under the management of the server device includes a setting receiving unit and an access point setting unit.

  Here, the setting receiving unit receives the SSID notified from the server device, and the access point setting unit additionally sets the received SSID to be usable as the SSID of the access point device.

  As a result, a new SSID corresponding to the type of advertisement is allocated to the access point device.

  According to the present invention, it is possible to centrally manage the types of advertisements provided from the access point device by appropriately managing the access point device according to the type of the posted advertisement.

  Further, in the advertisement providing system of the present invention, the advertisement storage unit arranges the access point device in the SSID of the access point device (hereinafter referred to as “passing SSID”) for each of the plurality of access point devices. The SSID of one or more access point devices arranged in the vicinity of the place (hereinafter referred to as “immediately SSID”) is further associated and stored, and the advertisement information associated with the passing SSID includes the immediately preceding SSID. At least one of them is further associated, and for each of the SSIDs included in the received history, the advertisement acquisition unit includes the SSID and the SSID included immediately before the SSID in the history as the passing SSID and the immediately preceding SSID. , Get the advertising information stored in the advertising storage It can be configured to.

  In the above invention, one advertisement information is associated with one SSID. However, in the present invention, one advertisement information may be associated with a pair of SSIDs of adjacent access point devices. It becomes possible.

  Here, “neighbor” is preferably physically close, but includes cases where it is close in time, or where it is close in consideration of the type of advertisement provided by the SSID. Also good.

  According to the present invention, since the advertisement to be provided changes depending on the direction in which the terminal device moves, for example, different advertisements can be provided depending on whether the user leaves the shopping mall or approaches the shopping mall. Become.

  In the advertisement providing system of the present invention, the server device can further include a proximity setting unit and can be configured as follows.

That is, for each of the SSIDs included in the received history, the proximity setting unit has the advertisement information in which the SSID and the SSID immediately before the SSID in the history are the passing SSID and the immediately previous SSID in the advertisement storage unit.
(1) If not stored, store the predetermined SSID and the SSID immediately before the SSID in the history as the passing SSID and the immediately previous SSID in the advertisement storage unit until a predetermined validity period elapses Let
(2) If it is stored and the advertisement information is predetermined default advertisement information, the predetermined validity period of the advertisement information is recalculated from the present time.

  Here, the default advertisement information is assumed to be an advertisement that is relatively weakly associated with an SSID pair (an advertisement with a low placement fee), such as a spot advertisement in television broadcasting. On the other hand, advertisement information that is not default advertisement information is typically associated with an SSID pair of an access point device under the management of the server device, and is an advertisement that has a sponsor contract in television broadcasting. (Advertisement fee is relatively expensive).

  The above (1) is typically the case where the access point device is not under the control of the server device. The location information of the SSID emitted by the access point device in the city by the radio wave beacon is sent to the server device via the terminal device. Will be picked up. However, since this position information is not under the control of the server device, an expiration date is set.

  In (2) above, when such a pair of SSIDs with an expiration date is confirmed again by the terminal device, the expiration date is reset after a predetermined expiration period from the present. This is because it is necessary to dynamically check the existence of an access point device that is not under the management of the server device.

  Some advertisers may want to provide advertisements to adjacent pairs of temporary access point devices as described above. In this case, since the advertisement information is not default advertisement information, the pair is valid while the contract with the advertiser is continued.

  Also, advertisement information can be assigned to an SSID alone of an access point device that is not managed by the server device, depending on the desire of the advertiser. Advertisers, such as the SSID of the access point device adjacent to the access point device under the management of the server device, the SSID of the access point device in the vicinity thereof, the SSID of the adjacent access point device in the vicinity thereof, etc. This is because by tracing the passing SSID and the immediately preceding SSID in order, the approximate location of the access point device that is not under the control of the server device can be known.

  ADVANTAGE OF THE INVENTION According to this invention, the advertisement using the access point apparatus which is not under management of a server apparatus can be provided now.

  Even if the above invention is applied, it may be prohibited to use the SSID in such a form depending on the legal system of the country or region.

  Therefore, in such a case, when the SSID of the access point device does not include a character string representing the type of advertisement, that is, when it can be determined that the access point device is not managed by the server device, the history storage unit Instead of storing the SSID in the history stored in, the result of applying a predetermined hash function to the SSID is stored instead of the SSID.

  According to the present invention, by adopting such a method, the access to the SSID itself of the access point device that is not under control is collected by the server device in accordance with a case where it is legally prohibited. An advertisement can be provided using the adjacent relationship of the point device.

  An advertisement providing method according to another aspect of the present invention includes an advertisement storage unit, a history reception unit, an advertisement acquisition unit, a server device having an advertisement transmission unit, a detection unit, a history storage unit, a history transmission unit, an advertisement reception unit, an advertisement And a terminal device having a display unit, and includes a history reception process, an advertisement acquisition process, an advertisement transmission process, a detection process, a history storage process, a history transmission process, an advertisement reception process, and an advertisement display process, and is configured as follows. To do.

  That is, in the server device, the advertisement storage unit stores the SSIDs of a plurality of wireless LAN access point devices arranged in the city and the advertisement information in association with each other.

  On the other hand, in the terminal device, in the detection step, the detection unit detects the SSID of the wireless LAN access point device arranged in the city, and in the history storage step, the history of the detected SSID is stored in the history storage unit. In the history transmission step, the history transmission unit transmits the history of the stored SSID to the server device.

  Further, in the server device, in the history reception step, the history reception unit receives the history of the SSID transmitted from the terminal device, and in the advertisement acquisition step, the advertisement acquisition unit is received with reference to the advertisement storage unit. The advertisement information stored in the advertisement storage unit in association with the SSID included in the history is acquired, and in the advertisement transmission step, the advertisement transmission unit transmits the acquired advertisement information to the terminal device.

  Then, in the terminal device, in the advertisement reception step, the advertisement reception unit receives the advertisement information transmitted from the server device, and in the advertisement display step, the advertisement display unit displays the received advertisement information.

  A program according to another aspect of the present invention is configured to cause a plurality of computers to function as each unit of the server device and each unit of the terminal device of the advertisement providing system.

  The program of the present invention can be recorded on a computer-readable information storage medium such as a compact disk, flexible disk, hard disk, magneto-optical disk, digital video disk, magnetic tape, and semiconductor memory.

  The above program can be distributed and sold via a computer communication network independently of the computer on which the program is executed. The information storage medium can be distributed and sold independently from the computer.

  ADVANTAGE OF THE INVENTION According to this invention, using the SSID of the wireless LAN access point apparatus arranged in the city, an advertisement providing system, an advertisement providing method, and a method suitable for providing an advertisement appropriately according to a place and a user, and A program for realizing these by a computer can be provided.

  Embodiments of the present invention will be described below. In the following, for ease of understanding, an embodiment in which the present invention is realized using a game information processing device will be described. However, the embodiment described below is for explanation, and the present invention is described. It does not limit the range. Therefore, those skilled in the art can employ embodiments in which each or all of these elements are replaced with equivalent ones, and these embodiments are also included in the scope of the present invention.

  The advertisement providing system according to the present embodiment allows a server computer connected to a computer communication network such as the Internet to operate a predetermined program to function as a server device, and can communicate with a terminal device such as a mobile phone or a mobile game device. This is realized by setting to.

  Here, although there is a difference in processing capability between the terminal device and the server device, the fundamental, operating principle, and configuration are common. Therefore, in the following, the outline of the information processing apparatus will be described, and differences between the case where the information processing apparatus is applied to a terminal apparatus and a server apparatus will be described as appropriate accordingly.

  FIG. 1 is a schematic diagram illustrating a schematic configuration of a typical information processing apparatus that can function as a server apparatus or a terminal apparatus according to the present embodiment by executing a program. Hereinafter, a description will be given with reference to FIG.

  The information processing apparatus 100 includes a CPU (Central Processing Unit) 101, a ROM 102, a RAM (Random Access Memory) 103, an interface 104, a controller 105, an external memory 106, an image processing unit 107, and a DVD-ROM. A (Digital Versatile Disc ROM) drive 108, a NIC (Network Interface Card) 109, an audio processing unit 110, and a microphone 111 can be provided. Various input / output devices can be omitted as appropriate.

  A DVD-ROM storing a game program and data is loaded into the DVD-ROM drive 108 and the information processing apparatus 100 is turned on to execute the program, thereby realizing the server apparatus of the present embodiment. The

  Further, in order to make the portable game device portable, it is also possible to use a ROM cassette slot instead of using the DVD-ROM drive 108. In this case, the terminal device of this embodiment is implement | achieved by inserting the ROM cassette with which the program was recorded, and running the said program.

  The NIC 109 is typically a wireless LAN card in a portable terminal. On the other hand, a server device is typically connected to the Internet as a wired LAN card. Of the access point devices, it is necessary to be able to communicate with an access point device managed by the server device, but the present invention is applied even if it is not possible to communicate with an access point device not managed by the server device. Is possible.

  The CPU 101 controls the overall operation of the information processing apparatus 100 and is connected to each component to exchange control signals and data. Further, the CPU 101 uses arithmetic operations such as addition / subtraction / multiplication / division, logical sum, logical product, etc. using an ALU (Arithmetic Logic Unit) (not shown) for a storage area called a register (not shown) that can be accessed at high speed. , Logic operations such as logical negation, bit operations such as bit sum, bit product, bit inversion, bit shift, and bit rotation can be performed. In addition, the CPU 101 itself is configured so that saturation operations such as addition / subtraction / multiplication / division for multimedia processing, vector operations such as trigonometric functions, etc. can be performed at a high speed, and those provided with a coprocessor. There is.

  The ROM 102 records an IPL (Initial Program Loader) that is executed immediately after the power is turned on, and when this is executed, the program recorded on the DVD-ROM is read out to the RAM 103 and execution by the CPU 101 is started. The The ROM 102 stores an operating system program and various data necessary for operation control of the entire information processing apparatus 100.

  The RAM 103 is for temporarily storing data and programs, and holds programs and data read from the DVD-ROM and other data necessary for game progress and chat communication. Further, the CPU 101 provides a variable area in the RAM 103 and performs an operation by directly operating the ALU on the value stored in the variable, or temporarily stores the value stored in the RAM 103 in the register. Perform operations such as performing operations on registers and writing back the operation results to memory.

  The controller 105 connected via the interface 104 receives an operation input performed when the user executes the game.

  The external memory 106 detachably connected via the interface 104 stores data indicating game play status (past results, etc.), data indicating game progress, and log of chat communication in the case of a network match ( Data) is stored in a rewritable manner. The user can record these data in the external memory 106 as appropriate by inputting an instruction via the controller 105.

  A DVD-ROM mounted on the DVD-ROM drive 108 stores a program for realizing the game and image data and audio data associated with the game. Under the control of the CPU 101, the DVD-ROM drive 108 performs a reading process on the DVD-ROM loaded therein, reads out necessary programs and data, and these are temporarily stored in the RAM 103 or the like.

  The image processing unit 107 processes the data read from the DVD-ROM by an image arithmetic processor (not shown) included in the CPU 101 or the image processing unit 107, and then processes the processed data on a frame memory ( (Not shown). The image information recorded in the frame memory is converted into a video signal at a predetermined synchronization timing and output to a monitor (not shown) connected to the image processing unit 107. Thereby, various image displays are possible.

  The image calculation processor can execute a two-dimensional image overlay calculation, a transmission calculation such as α blending, and various saturation calculations at high speed.

  Also, polygon information arranged in the virtual three-dimensional space and added with various texture information is rendered by the Z buffer method, and the polygon arranged in the virtual three-dimensional space from the predetermined viewpoint position is determined in the direction of the predetermined line of sight It is also possible to perform high-speed execution of operations for obtaining rendered images.

  Further, the CPU 101 and the image arithmetic processor operate in a coordinated manner, so that a character string can be drawn as a two-dimensional image in a frame memory or drawn on the surface of each polygon according to font information that defines the character shape. is there.

  The NIC 109 is used to connect the information processing apparatus 100 to a computer communication network (not shown) such as the Internet, and conforms to the 10BASE-T / 100BASE-T standard used when configuring a LAN. An analog modem for connecting to the Internet using a telephone line, an ISDN (Integrated Services Digital Network) modem, an ADSL (Asymmetric Digital Subscriber Line) modem, a cable modem for connecting to the Internet using a cable television line, etc. These are configured by an interface (not shown) that mediates between these and the CPU 101.

  The audio processing unit 110 converts audio data read from the DVD-ROM into an analog audio signal and outputs the analog audio signal from a speaker (not shown) connected thereto. Further, under the control of the CPU 101, sound effects and music data to be generated during the progress of the game are generated, and the corresponding sound is output from a speaker, headphones (not shown), and earphones (not shown). Output.

  When the audio data recorded on the DVD-ROM is MIDI data, the audio processing unit 110 refers to the sound source data included in the audio data and converts the MIDI data into PCM data. If the compressed audio data is in ADPCM format or Ogg Vorbis format, it is expanded and converted to PCM data. The PCM data can be output by performing D / A (Digital / Analog) conversion at a timing corresponding to the sampling frequency and outputting it to a speaker.

  Furthermore, a microphone 111 can be connected to the information processing apparatus 100 via the interface 104. In this case, the analog signal from the microphone 111 is subjected to A / D conversion at an appropriate sampling frequency so that processing such as mixing in the sound processing unit 110 can be performed as a PCM format digital signal.

  In addition, the information processing apparatus 100 uses a large-capacity external storage device such as a hard disk so as to perform the same function as the ROM 102, the RAM 103, the external memory 106, the DVD-ROM mounted on the DVD-ROM drive 108, and the like. You may comprise.

  Further, it is possible to adopt a form in which a keyboard for accepting a character string editing input from a user, a mouse for accepting various position designations and selection inputs, and the like are connected. In addition, a general-purpose personal computer can be used instead of the information processing apparatus 100 of the present embodiment.

  As described above, the server device is realized by executing a program on the information processing device 100, but may be realized on a general computer. In addition, the information processing apparatus 100 and a general computer are not significantly different in configuration and function. As described above, in the present application, a general computer and the information processing apparatus 100 will be described in the same manner.

  The information processing apparatus 100 described above corresponds to a so-called consumer game apparatus, but the present invention can be realized as long as it performs image processing that displays a virtual space. Therefore, the present invention can be realized on various computers such as a mobile phone, a portable game device, a karaoke apparatus, and a general business computer.

  For example, a general computer, like the information processing apparatus 100, includes an image processing unit that includes a CPU, RAM, ROM, DVD-ROM drive, and NIC and has simpler functions than the information processing apparatus 100. In addition to having a hard disk as an external storage device, a flexible disk, a magneto-optical disk, a magnetic tape, and the like can be used. Further, not the controller 105 but a keyboard or a mouse is used as an input device.

(Advertising system)
FIG. 2 is an explanatory diagram showing a schematic configuration of the advertisement providing system according to the present embodiment. Hereinafter, a description will be given with reference to FIG.

  In the advertisement providing system 201, the server device 202 and the access point device 203 are connected to the Internet 204, and the terminal device 205 is connected to the Internet 204 via the access point device 203 provided by the wireless LAN Internet connection provider contracted by the user. To access.

  Here, there are access point devices 203 that are managed by the server device 202 and those that are not.

  The server device 202 can perform processing such as dynamically changing the SSID for the access point device 203 under management, but cannot change the SSID for the access point device 203 that is not. .

  Further, the installation location of the managed access point device 203 can be known in advance on the server device 202 side. However, for the access point device 203 that is not under management, if there is no other information, the installation location can be changed. It is impossible to specify. Depending on the country or region, the collection of the SSID of the access point device 203 that is not under management may become a legal issue.

  Further, in the access point device 203 managed by a wireless LAN Internet connection provider with which the user of the terminal device 205 is not contracted, the terminal device 205 cannot connect to the Internet 204. However, the wireless LAN access point device 203 emits its own SSID by a radio wave beacon. Therefore, the terminal device 205 can receive the radio wave beacon and acquire the SSID of the nearby access point device 203.

  Therefore, the access point device detected by the terminal device 205 regardless of whether or not it is under the control of the server device 202 and whether or not the terminal device 205 is available when connected to the Internet. From the history of 203 SSIDs, the moving route of the terminal device 205 and the installation location of the access point device 203 can be determined to some extent. This will be described in detail below.

(Configuration of server device)
FIG. 3 is a schematic diagram illustrating a schematic configuration of the server device according to the present embodiment. Hereinafter, a description will be given with reference to FIG.

  The server device 202 includes an advertisement storage unit 301, a history reception unit 302, an advertisement acquisition unit 303, and an advertisement transmission unit 304. Typically, it further includes a manuscript input receiving unit 305, a server setting unit 306, and a setting notification unit 307.

  First, the advertisement storage unit 301 stores information related to SSIDs of a plurality of wireless LAN access point devices arranged in the city and advertisement information to be provided in association with each other.

  On the other hand, the history receiving unit 302 receives the history of the SSID transmitted from the terminal device 205.

  Furthermore, the advertisement acquisition unit 303 refers to the advertisement storage unit 301 and acquires the advertisement information stored in the advertisement storage unit 301 in association with the SSID included in the received history.

  Then, the advertisement transmission unit 304 transmits the acquired advertisement information to the terminal device 205.

  Hereinafter, these functions and processes will be described in detail.

  FIG. 4 is an explanatory diagram showing the state of information stored in the advertisement storage unit 301. Hereinafter, a description will be given with reference to FIG.

  The advertisement storage unit 301 includes one table 401 and stores a plurality of rows (records) 402. Each row 402 stores the following information.

  (1) The identification name of the access point device 203 (passage SSID field 403). The identification name is typically the SSID of the access point device 203. The SSID is a character string of up to 32 alphanumeric characters. When the access point device 203 is under the management of the server device 202, the access point devices 203 are typically different from each other. Further, it is possible to adopt a method of reconfiguring the passing SSID according to the type of advertisement.

  When the access point device 203 is not under the management of the server device 202 and there is a legal problem or a privacy problem in collecting the SSID, as the identification name of the access point device 203 not under the management, Typically, the result of applying a predetermined hash function to the SSID of the access point device is employed. The application of the hash function itself is performed by the terminal device 205, and if only the hash value is transmitted to the server device 202, legal and privacy problems can be suppressed.

  (2) The identification name of the access point device 203 arranged (estimated) in the vicinity of the access point device 203 having the identification name (previous SSID column 404). Since the combination of the passing SSID and the immediately preceding SSID can be used as a unit for advertisement placement, advertisement information can be provided according to the direction of movement of the terminal device 205.

  It is also possible to associate advertisement information with the access point device 203 alone, and in this case, an identification name is not registered in the immediately preceding SSID (a character string of length 0 is registered).

  (3) Expiration date (expiration date column 405) of the passing SSID (and the immediately preceding SSID). When the passing SSID (and the immediately preceding SSID) is under the control of the server apparatus 202, the expiration date is “indefinite”, but at least one of the passing SSID and the immediately preceding SSID is under the management of the server apparatus 202. If not, the expiration date in the expiration date column 405 is the time when a certain validity period has passed since the SSID of the access point device 203 was reported. Therefore, each time the terminal device 205 detects the same passing SSID (and the immediately preceding SSID), the expiration date is extended.

  (4) Advertisement information for the passing SSID (and the immediately preceding SSID) (advertisement information column 406). The advertisement information may be a URL (Universal Resource Locator) where the advertisement is arranged, or may manage the text of the advertisement and the image itself. In addition, as a plurality of candidates as advertisement information, one of them may be selected at random when necessary.

  In addition, if only one piece of advertising information is registered in one row 402, and a plurality of pieces of advertising information are assigned to the same passing SSID (and the immediately preceding SSID), 1 for each piece of advertising information. A method of registering one row 402 in the table 401 can also be adopted. In this case, the system is configured on the assumption that a plurality of rows 402 are extracted when searching the rows 402 that meet the conditions from the table 401.

  (5) Address (address field 407) where the access point device 203 of the passing SSID is installed. The address field 407 is determined only when the access point device 203 is managed by the server device 202. For the access point device 203 that is not under management, the address field 407 is blank.

  Even if the address field 407 in the row 402 of the access point device 203 with a certain passing SSID is blank, the position of the access point device 203 can be estimated to some extent.

  That is, the immediately preceding SSID of the access point device 203 of the passing SSID is acquired, the row 402 having the acquired SSID as the passing SSID is searched, and the address column 407 of the search result row 402 is not blank. Repeat the process. If an address field 407 that is not a blank field is found, it can be estimated that the address field 407 is located at a location far from the address by a “distance corresponding to“ number of repetitions ”.

  In addition to the information (1) to (5), various setting information can be further registered. These registration methods will be described later.

(SSID configuration method)
A method for configuring the SSID of the access point device 203 under the management of the server device 202 will be described.

  The SSID of the access point device 203 is 32 alphanumeric characters as described above. If the uppercase and lowercase letters are not distinguished as alphanumeric characters, 26 + 10 = 36 types of characters can be used. It should be noted that the standard may be changed or revised to become longer or increase the number of character types in the future. In this case, the numerical value may be changed according to the standard.

There can be various types of advertisements. There are techniques for professions, and there are techniques for classification depending on whether it is for adults or not. Generally, if there are N ways, these N ways can be expressed by alphanumeric ceil (log ₃₆ N) characters. it can. For example, 2 characters to 36 characters are 1 character, and 37 characters to 1296 characters are 2 characters. Therefore, in most application fields, it is considered sufficient to use two characters of the SSID as “advertising type”.

The remaining 30 characters can be used arbitrarily. For example, if the MAC (Media Access Control) address of the access point device 203 is used as it is in the current standard, it is necessary to be able to express 256 ⁶ types. is there. This can be expressed with 10-digit alphanumeric characters.

  Therefore, each of the managed access point devices 203 and the type of advertisement can be identified by 12 digits.

  In addition, the SSID is generated by appropriately adding a constant character string indicating that the server apparatus 202 is under management and a character string corresponding to a checksum or hash value of these character strings. The constant character string or a combination of this constant and the MAC address of the access point device 203 can be used as an access point identification name for identifying the access point device 203 itself by the server device 202.

  By adopting such a configuration, if it is determined whether the checksum or hash value is correct or includes a constant character string, the access point device 203 detected by the terminal device 205 at the street corner manages the server device 202. The terminal device 205 can determine whether it is below.

(State of communication)
FIG. 5 is a session diagram illustrating a state of communication between the server device, the terminal device, and the access point device according to the present embodiment. Hereinafter, a description will be given with reference to FIG.

  When the user moves while holding the terminal device 205, the terminal device 205 receives a radio wave beacon emitted by the access point device 203 installed in the city (501), and records the history of the SSID specified in the radio wave beacon. . As described above, the reception (501) indicates whether the access point device 203 is managed by the server device 202, and whether the user of the terminal device 205 can use the access point device 203 for Internet connection. It can be done regardless of whether or not.

  It should be noted that what is considered impossible to identify the access point device 203, such as a radio beacon that does not designate an SSID or a radio beacon that designates ANY as an SSID, is typically ignored without accumulating in the history. It is.

  Now, the user of the terminal device 205 arrives at the target location or in the vicinity of the available access point device 203 and connects to the Internet 204 via the Internet 204 (via the access point device 203 that can be used by the user). It is also possible to connect via a wired LAN or telephone line.) When it is possible to calmly browse advertisement information, the above conditions are satisfied based on instructions from the user. Upon detecting this, the terminal device 205 transmits the accumulated history to the server device 202 (502).

  The history transmitted here includes SSID information detected during the movement. However, for the SSID of the access point device 203 not under the management of the server device 202, the result of applying a one-way hash function to the SSID may be used instead.

  For the access point device 203 under the management of the server device 202, the type of advertisement associated with the access point device 203 can be acquired from the SSID. Therefore, when the user selects and sets a desired advertisement type in advance, for the SSID under the management of the server device 202, only the SSID of the selected advertisement type is included in the history. For SSIDs that are not under the control of the server device 202, the result of applying the hash function as described above is typically included in the history.

  The server apparatus 202 that has received the history acquires advertisement information associated with the SSID included in the history, and transmits this advertisement information to the terminal apparatus 205 (503). The terminal device 205 displays the transmitted advertisement information on a screen and presents it to the user.

Here, as the advertisement information associated with the SSID included in the history, the following modes can be considered.
(A) Advertisement information associated with SSID alone. It is an advertisement that is put out paying attention to the place.
(B) Advertising information associated with two adjacent SSID pairs in the history. This is an advertisement that pays attention to the moving direction of the user.

  The advertisement information in any case may be a “spot advertisement” or a “sponsor advertisement” depending on the type of SSID.

  Hereinafter, details of the server device 202, the access point device 203, and the terminal device 205 that perform such communication will be further described.

(Advertising post processing)
First, a method for registering advertisement information in the server device 202 will be described. FIG. 6 is a flowchart showing a flow of control of an advertisement posting process for registering an advertisement by posting from an advertiser. Hereinafter, a description will be given with reference to FIG.

  This process is typically started when the server device 202 functions as a web server and an advertiser accesses the server device 202 using various browsers.

  First, the server device 202 scans the advertisement storage unit 301 to create a list of identification names of the access point devices 203 that can place advertisements (step S601), and transmits this to a computer used by the advertiser (step S601). Step S602).

Here, the identification name refers to the following.
(A) If the access point device 203 is under the management of the server device 202, the access point identification name of the access point device 203. Typically, a combination of a constant string and MAC address information.
(B) If the access point device 203 is not under the control of the server device 202, a hash function is applied to the SSID of the access point device 203.

  Moreover, when creating this list, it is desirable that the advertiser can appropriately search based on the region and the moving direction. These pieces of information can determine whether or not the search condition is satisfied based on the contents of the address field 407, the passing SSID field 403, and the immediately preceding SSID field 404.

  The computer used by the advertiser receives this (step S651), and displays the input form on the screen based on the list information (step S652). The user browses the input form, decides to which identification name the advertisement is to be placed, and inputs the identification name, advertisement information associated with the identification name, and the type of the advertisement on the input form. (Step S653).

  And the information which received the input is transmitted to the server apparatus 202 (step S654). The identification names may be specified independently, or two identification names corresponding to the passing SSID and the immediately preceding SSID may be specified. In the case of a spot advertisement, an identification name may not be specified.

  The server device 202 receives the information input in the input form (step S603), and updates the advertisement storage unit 301 based on the information (step S604). At this time, for the identification name of the access point device 203 managed by the server device 202, the passing SSID (and the immediately preceding SSID) is generated and registered based on the above rules.

  Therefore, each part of the computer constituting the server device 202 functions as a manuscript input receiving unit 305 and a server setting unit 306.

  Furthermore, it is determined whether or not the identification name of the received information is that of the access point apparatus 203 under the management of the server apparatus 202, that is, whether or not an SSID is generated from the identification name in step S604. If not (step S605; No), the process is terminated.

  When the identification name is that of the managed access point device 203 (step S605; Yes), the generated SSID is notified to the access point device 203 (step S606). Accordingly, each part of the computer constituting the server device 202 functions as the setting notification unit 307.

  On the other hand, the access point device 203 receives this notification (step S671), sets to add the SSID specified in the notification as its own SSID (step S672), and ends this processing. When there are a plurality of access point devices 203, the processes of step S606, step S671, and step S672 are repeated as necessary.

(Configuration of access point device)
Hereinafter, functions of the access point device 203 will be described. FIG. 7 is a schematic diagram showing a schematic configuration of the access point device according to the present embodiment. Hereinafter, a description will be given with reference to FIG.

  The access point device 203 includes a setting receiving unit 701, a setting storage unit 702, an access point setting unit 703, a terminal communication unit 704 that communicates with the terminal device 205, and a net communication unit 705 that is connected to the Internet 204.

  The setting receiving unit 701 receives the notification in step S671 described above, and this notification is generally relayed by the network communication unit 705. The access point setting unit 703 additionally records the SSID in the setting storage unit 702 in the above step S672.

  On the other hand, the terminal communication unit 704 periodically transmits a radio wave beacon designating each of the SSIDs stored in the setting storage unit 702, and authenticates the terminal device 205 that has transmitted a connection request in response thereto. In this case, the terminal unit 205 and the Internet 204 are relayed in cooperation with the network communication unit 705.

  In this way, the access point device 203 can be considered as a wireless LAN access point device that can update its SSID through connection with the Internet 204.

  The radio wave beacon is detected by the terminal device 205, and regardless of whether the terminal device 205 can be connected to the Internet 204 via the access point device 203, the SSID of the access point device 203 is determined by this detection. It will be known to the terminal device 205.

(Configuration of terminal device)
Hereinafter, functions of the terminal device 205 will be described. FIG. 8 is a schematic diagram illustrating a schematic configuration of the terminal device according to the present embodiment. Hereinafter, a description will be given with reference to FIG.

  The terminal device 205 includes a detection unit 802, a history storage unit 803, a history transmission unit 804, an advertisement reception unit 805, and an advertisement display unit 806, in addition to the network communication unit 801 responsible for wireless LAN connection.

  The network communication unit 801 may be compatible with not only wireless LAN connection but also wired LAN connection, telephone line connection, and the like.

  The terminal device 205 has two modes, “movement mode” and “advertisement acquisition mode”. The “movement mode” corresponds to a situation where the user does not use a special function in the terminal device 205, for example, a standby state of a mobile phone. In this situation, travel mode processing is performed.

  Therefore, in hardware such as a mobile phone or a mobile computer constituting the terminal device 205, the wireless LAN interface functions as the network communication unit 801 and the detection unit 802 under the control of the CPU, and the storage medium such as the RAM is a history storage unit. It functions as 803, the CPU and the wireless LAN interface work together to function as the history transmission unit 804 and the advertisement reception unit 805, and a liquid crystal display or the like functions as the advertisement display unit 806. Hereinafter, functions and processes of each unit will be described in detail.

(Movement mode processing)
FIG. 9 is a flowchart showing a flow of control of the movement mode process executed in the movement mode. Hereinafter, a description will be given with reference to FIG. In the movement mode process, a predetermined process is repeated periodically. Therefore, when processing is started, after waiting (step S901), the detection unit 802 determines whether or not a radio beacon can be detected using the wireless communication function of the network communication unit 801 (step S902). When it cannot detect (step S902; No), it returns to step S901. On the other hand, when it can detect (step S902; Yes), it progresses to step S903.

  Since such processing is performed, the standby in step S901 does not necessarily need to be performed for a certain period of time, and an interrupt generated by detection of a radio beacon may be used. Further, during standby in step S901, other processing (for example, processing in an advertisement acquisition mode started based on a user instruction) can be executed in a coroutine manner.

  If a radio wave beacon can be detected (step S902; Yes), it is determined whether or not the SSID designated for the radio wave beacon belongs to the access point device 203 managed by the server device 202 (step S903). ). This determination can be made by examining the SSID configuration, checksum, etc. as described above.

  If the SSID belongs to the access point device 203 managed by the server device 202 (step S903; Yes), the SSID is additionally stored in the history storage unit 803 (step S904), and the process returns to step S901.

  On the other hand, when the SSID is not that of the access point device 203 managed by the server device 202 (step S903; No), a predetermined one-way hash function is applied to the SSID (step S905), and the result is stored in the history storage unit. Additional storage is performed in 803 (step S906), and the process returns to step S901.

(Ad acquisition mode processing)
On the other hand, FIG. 10 is a flowchart showing a flow of control of advertisement acquisition mode processing executed in the advertisement acquisition mode. Hereinafter, a description will be given with reference to FIG. For example, in the processing, the terminal device 205 in the mobile mode can communicate with the server device 202 via the Internet 204 via a wireless LAN or a wired LAN by the network communication unit 801. It starts by operating.

  When this process is started, the history transmission unit 804 acquires the history of the SSID stored in the history storage unit 803 (step S951).

At this time, if the type of advertisement desired by the user is stored in advance in the nonvolatile storage device of the terminal device 205,
(A) The SSID is that of the access point device 203 under the management of the server device 202, and the type of advertisement specified by the SSID is included in the type of advertisement desired by the user. Yes or
(B) Only a history satisfying a condition that the SSID is a hash function applied to the SSID of the access point device 203 not under the management of the server device 202 may be acquired.

  Next, the history transmission unit 804 transmits the history acquired in step S951 to the server device 202 using the network communication unit 801 (step S952). Then, the server device 202 executes an advertisement transmission process, which will be described later, and transmits advertisement information to the terminal device 205. Therefore, the advertisement reception unit 805 receives the advertisement information using the network communication unit 801. (Step S953).

  Then, the advertisement display unit 806 displays the received advertisement information on the screen (step S954), and ends this process.

  As described above, since this advertisement acquisition mode is activated by the user's intention, the position of the user is not monitored in real time, and privacy problems are less likely to occur. In addition, it becomes possible to provide a detailed advertisement considering the position of the access point device 203 that the user cannot use for Internet connection.

  Note that the transmitted history may be deleted from the history storage unit 803 after receiving the advertisement information, after a certain period of time has elapsed, or according to the usage amount of the history storage unit 803. In addition, information on the date and time when the SSID is detected is added to each row 402 of the table 401, and when acquiring the history, the user can appropriately add an SSID search condition such as using only the current day information. You may do it.

(Advertising process)
Hereinafter, an advertisement providing process started by the server apparatus 202 when the terminal apparatus 205 transmits a history will be described. FIG. 11 is a flowchart showing the flow of control of the advertisement providing process. Hereinafter, a description will be given with reference to FIG.

  When the advertisement providing process is started, the advertisement information storage area prepared in the temporary storage area such as the RAM is cleared (step S971).

  The history receiving unit 302 receives the SSID history from the terminal device 205 via the Internet 204 (step S972).

  Then, the received history is sequentially scanned from the top to the end (step S973). That is, the SSID that is currently focused on is acquired from the history (step S974), and among the rows 402 in the table 401, the focused SSID is the passing SSID (stored in the passing SSID column 403) and immediately before. A row 402 for which no SSID (stored in the immediately preceding SSID column 404) is designated is searched from the table 401 (step S975), and the advertisement information (stored in the advertisement information column 406) of the obtained row 402 is searched. .) Is obtained (step S976) and added to the advertisement information storage area (step S977).

  Next, the SSID next to the SSID that is currently focused is acquired from the history, and the SSID of interest in the row 402 in the table 401 is the immediately preceding SSID (stored in the immediately preceding SSID column 404). A row 402 whose next SSID is a passing SSID (stored in the passing SSID column 403) is searched from the table 401 (step S978), and the obtained advertisement information (stored in the advertisement information column 406) of the row 402 is retrieved. Is acquired (step S979) and added to the advertisement information storage area (step S981).

  Further, in the search in step S978, the SSID of interest is the immediately preceding SSID (stored in the immediately preceding SSID column 404), and the next SSID is stored in the passing SSID (stored in the passing SSID column 403). Is found (step S982), and if not found (step S982; No), the attention SSID is stored in the immediately preceding SSID column 404, and the next SSID is stored in the passing SSID column 403. The date and time obtained by adding a predetermined validity period to the current time is added to the expiration date column 405, the default advertisement such as a spot advertisement is added to the advertisement information column 406, and the designated row 402 is added to the table 401 of the advertisement storage unit 301 (step 401). S983).

  Further, if it has been found (step S982; Yes), if at least one of the immediately preceding SSID and the passing SSID is a hash function applied to the SSID of the access point device 203 not under the management of the server device 202, The date and time obtained by adding a predetermined validity period to the current time is stored in the validity period column 405 of the found row 402 to extend the validity period, and the table 401 is updated (step S984).

  After repeating these processes as many times as necessary (step S985), the advertisement transmitting unit 304 transmits the advertisement information stored in the advertisement information storage area to the terminal device 205 (step S986), and ends this process. To do.

  Through these processes, it is possible to add information of the access point device 204 not under the management of the server device 202 to the table 401. It should be noted that the process of deleting the row 402 that has passed the expiration date from the table 401 is executed when the idle time of the server device 202 exceeds a certain time or periodically. Accordingly, it is possible to appropriately provide an advertisement corresponding to the dynamic change of the access point device 203.

  As described above, according to the present invention, an advertisement providing system suitable for appropriately providing an advertisement according to a place or a user using the SSID of a wireless LAN access point device arranged in the city, It is possible to provide an advertisement providing method and a program that realizes these on a computer.

It is a schematic diagram which shows schematic structure of a typical information processing apparatus. It is explanatory drawing which shows schematic structure of the advertisement provision system which concerns on embodiment of this invention. It is a schematic diagram which shows schematic structure of the server apparatus which concerns on this embodiment. It is explanatory drawing which shows the mode of the information memorize | stored in an advertisement memory | storage part. It is a session figure which shows the mode of communication of the server apparatus of this embodiment, a terminal device, and an access point apparatus. It is a flowchart which shows the flow of control of the advertisement posting process which registers an advertisement by the posting from an advertiser. It is a schematic diagram which shows schematic structure of the access point apparatus which concerns on this embodiment. It is a schematic diagram which shows schematic structure of the terminal device which concerns on this embodiment. It is a flowchart which shows the flow of control of the movement mode process in a terminal device. It is a flowchart which shows the flow of control of the advertisement acquisition mode process in a terminal device. It is a flowchart which shows the flow of control of the advertisement provision process in a server apparatus.

Explanation of symbols

100 Information processing apparatus 101 CPU
102 ROM
103 RAM
104 Interface 105 Controller 106 External Memory 107 Image Processing Unit 108 DVD-ROM Drive 109 NIC
DESCRIPTION OF SYMBOLS 110 Audio | voice processing part 111 Microphone 201 Advertisement providing system 202 Server apparatus 203 Access point apparatus 204 Internet 205 Terminal apparatus 301 Advertisement storage part 302 History receiving part 303 Advertisement acquisition part 304 Advertisement transmission part 305 Manuscript input reception part 306 Server setting part 307 Setting notification Section 401 Table 402 Line 403 Passed SSID field 404 Immediate SSID field 405 Expiration date field 406 Advertisement information field 407 Address field 701 Setting receiving part 702 Setting storage part 703 Access point setting part 704 Terminal communication part 705 Net communication part 801 Net communication part 802 Detection unit 803 History storage unit 804 History transmission unit 805 Advertisement reception unit 806 Advertisement display unit

Claims (9)

An advertisement providing system having a server device and a terminal device,
(A) The server device
An advertisement storage unit that stores and associates SSID (Service Set IDentifier) and advertisement information of access point devices of a plurality of wireless LANs (Local Area Network) arranged in the city,
(B) The terminal device
A detection unit for detecting an SSID of an access point device of a wireless LAN disposed in the city;
A history storage unit for storing a history of the detected SSID;
A history transmission unit that transmits the history of the stored SSID to the server device;
(C) The server device
A history receiving unit that receives the history of the SSID transmitted from the terminal device;
An advertisement acquisition unit that refers to the advertisement storage unit and acquires the advertisement information stored in the advertisement storage unit in association with the SSID included in the received history;
An advertisement transmission unit that transmits the acquired advertisement information to the terminal device;
(D) The terminal device
An advertisement receiving unit for receiving the advertisement information transmitted from the server device;
An advertisement providing system, further comprising an advertisement display unit that displays the received advertisement information. The advertisement providing system according to claim 1,
Among the plurality of access point devices, the SSID of the access point device managed by the server device includes a character string representing the type of advertisement stored in the advertisement storage unit in association with the SSID,
The history transmitting unit extracts an SSID including a character string representing the type of advertisement desired by the user from the stored SSID history, and transmits the extracted SSID history. Ad provision system. The advertisement providing system according to claim 2,
Among the plurality of access point devices, the access point device managed by the server device has a plurality of SSIDs having different character strings representing advertisement types, and the terminal device via each of the plurality of SSIDs An advertisement providing system characterized by accepting access to a wireless LAN from a computer. The advertisement providing system according to claim 3,
The SSID of the access point device managed by the server device is a combination of a type character string indicating the type of the advertisement and an identification character string for identifying the access point device from other access point devices. ,
(E) The server device
Draft input that specifies the identification character string that identifies the access point device associated with the advertisement to be placed, the advertisement information that represents the content of the advertisement to be placed, and the type character string that represents the type of advertisement to be placed Entry input accepting part that accepts
A server setting unit that associates and stores the SSID combined with the identification character string and the type character string specified in the accepted draft input and the advertisement information specified in the draft input in the advertisement storage unit;
A setting notification unit for notifying the access point of the identification character string specified in the accepted entry input, the SSID that combines the identification character string and the type character string;
(F) The access point device
A setting receiving unit that receives the SSID notified from the server device;
An advertisement providing system, further comprising: an access point setting unit that additionally sets the received SSID as an SSID of the access point device. The advertisement providing system according to any one of claims 2 to 4, wherein the server device includes:
For each of the plurality of access point devices, the advertisement storage unit is disposed in the SSID of the access point device (hereinafter referred to as “passing SSID”) in the vicinity of the location where the access point device is disposed. Alternatively, the SSIDs of a plurality of access point devices (hereinafter referred to as “immediately prior SSID”) are further associated and stored, and the advertisement information associated with the passing SSID is further associated with at least one of the immediately preceding SSIDs. And
For each SSID included in the received history, the advertisement acquisition unit stores the SSID and the SSID included immediately before the SSID in the history as the passing SSID and the immediately previous SSID stored in the advertisement storage unit. An advertisement providing system characterized by acquiring advertisement information. The advertisement providing system according to claim 5, wherein the server device includes:
For each of the SSIDs included in the received history, the advertisement information having the SSID and the SSID immediately before the SSID in the history as the passing SSID and the immediately previous SSID is stored in the advertisement storage unit.
(1) If not stored, the SSID included in the history and the SSID immediately before the SSID is set as the passing SSID and the immediately previous SSID in the advertisement storage unit until a predetermined validity period elapses. Remember,
(2) The advertisement providing system, further comprising: a proximity setting unit that re-calculates a predetermined effective period of the advertisement information from the present if the advertisement information is stored and the advertisement information is predetermined default advertisement information. The advertisement providing system according to claim 6, wherein in the terminal device,
When the SSID of the access point device does not include a character string indicating the type of advertisement, a predetermined hash function is applied to the SSID instead of storing the SSID in the history stored in the history storage unit. An advertisement providing system characterized by memorizing the results obtained. An advertisement provided by a server device having an advertisement storage unit, a history reception unit, an advertisement acquisition unit, and an advertisement transmission unit, and a terminal device having a detection unit, a history storage unit, a history transmission unit, an advertisement reception unit, and an advertisement display unit A method,
In the server device, in the advertisement storage unit, SSID (Service Set IDentifier) of access point devices of a plurality of wireless LANs (Local Area Network) arranged in the city and advertisement information are stored in association with each other,
(A) In the terminal device,
A detection step in which the detection unit detects an SSID of a wireless LAN access point device arranged in the city;
A history storage step of storing a history of the detected SSID in the history storage unit;
The history transmission unit includes a history transmission step of transmitting the history of the stored SSID to the server device,
(B) In the server device,
A history receiving step in which the history receiving unit receives the history of the SSID transmitted from the terminal device,
An advertisement acquisition step in which the advertisement acquisition unit refers to the advertisement storage unit and acquires the advertisement information stored in the advertisement storage unit in association with the SSID included in the received history;
The advertisement transmission unit includes an advertisement transmission step of transmitting the acquired advertisement information to the terminal device,
(C) In the terminal device,
An advertisement receiving step in which the advertisement receiving unit receives the advertisement information transmitted from the server device;
The advertisement providing method, further comprising: an advertisement display step in which the advertisement display unit displays the received advertisement information. A server program that causes a server computer to function as a server device, and a terminal program that causes a terminal computer to function as a terminal device,
(A) The server program includes the server computer,
The SSID (Service Set IDentifier) of the access point devices of a plurality of wireless LANs (Local Area Network) arranged in the city, and the advertisement information, function as an advertisement storage unit that stores them in association with each other,
(B) The terminal program includes a terminal computer,
A detection unit for detecting an SSID of an access point device of a wireless LAN disposed in the city;
A history storage unit for storing a history of the detected SSID;
Function as a history transmission unit that transmits the history of the stored SSID to the server device;
(C) The server program includes a server computer,
A history receiving unit that receives the history of the SSID transmitted from the terminal device;
An advertisement acquisition unit that refers to the advertisement storage unit and acquires the advertisement information stored in the advertisement storage unit in association with the SSID included in the received history;
Further function as an advertisement transmission unit that transmits the acquired advertisement information to the terminal device,
(D) The terminal program includes a terminal computer that receives an advertisement information transmitted from the server device,
A program that further functions as an advertisement display unit that displays the received advertisement information.

Images