JP2017041817A - Radio communication device, communication control method, and computer program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radio communication device or the like capable of distributing information to a wide range by using a wireless LAN.SOLUTION: A radio communication device 10 includes a reception unit 11 for receiving information transmitted from another radio communication device and including identification information that can identify the device, an identifier giving unit 12 for giving an identifier to the identification information included in the information received by the reception unit 11, a comparison unit 13 for determining whether to transmit information including the same identification information as identification information included in information to be transmitted by the self device on the basis of a result obtained by comparing reception signal strength when respective devices receive information to be a source of the information in the case of receiving the information from another radio communication device, and a communication unit 14 for transmitting information after an identifier is given by the identifier giving unit 12 in the case where the comparison unit 13 determines that information including the identification information with an identifier given is transmitted. However, in the case where an identifier has already been given to identification information included in the received information, the identifier giving unit 12 erases the identifier, and gives another identifier different from the erased identifier to identification information with the identifier erased.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wireless communication apparatus, a communication control method, and a computer program.

  In a large-scale commercial facility such as a shopping mall in which a plurality of stores are located, a public wireless LAN (Local Area Network) is widespread for each store or for each area in the commercial facility. The public wireless LAN is provided by installing a wireless LAN access point, a wireless LAN router, a gateway with a wireless LAN function, and the like. Customers visiting the commercial facility are open to use the installed public wireless LAN free of charge.

  The public wireless LAN is often used for the purpose of Internet communication. For this reason, it is considered that the public wireless LAN is not used effectively for business for each store or the commercial facility.

  Here, as related technologies, for example, there are the following patent documents.

  Patent Document 1 discloses a method of storing an SSID (Service Set IDentifier) of an access point recognized by a terminal as a history, and connecting to the Internet or the like later to receive advertisement distribution.

JP 2009-188922 A

  Information transmitted from a certain store using a public wireless LAN in a large-scale commercial facility where a plurality of stores have moved may not reach the entire facility due to the strength of radio waves or the influence of obstacles. For example, the information cannot be displayed on the terminal physically located away from the store, that is, on the user's terminal where the information transmitted from the store does not reach.

  The technique proposed in Patent Document 1 does not consider the case where information transmitted using a public wireless LAN cannot be received, and does not solve the problem.

  Therefore, the main object of the present invention is to provide a wireless communication apparatus or the like that can distribute information over a wide range using a wireless LAN.

  In order to achieve the above object, a wireless communication apparatus according to an aspect of the present invention includes the following arrangement.

That is, a wireless communication device according to one embodiment of the present invention is provided.
Receiving means for receiving information including identification information that can identify the device, transmitted from another wireless communication device;
Identifier giving means for giving an identifier to the identification information included in the information received by the receiving means;
When information including the same identification information as the identification information included in the information transmitted by the own device is received from another wireless communication device, the received signal strength when each device receives the information that is the basis of the information. Comparing means for determining whether to transmit the information based on the comparison result;
A communication unit that transmits information including identification information given an identifier by the identifier giving unit when the comparison unit decides to send the information;
With
When the identifier is already added to the identification information included in the received information, the identifier adding means deletes the identifier, and adds another identifier different from the deleted identifier to the identification information from which the identifier is deleted. Give.

A communication control method according to an aspect of the present invention that achieves the same object,
Receives information including identification information that can be used to identify the device, transmitted from another wireless communication device,
Giving an identifier to the identification information included in the received information,
When information including the same identification information as the identification information included in the information transmitted by the own device is received from another wireless communication device, the received signal strength when each device receives the information that is the basis of the information. Decide whether to send that information based on the comparison,
When it is determined to transmit the information, the information including the identification information given the identifier is transmitted,
However, when the identifier is already given to the identification information included in the received information, the identifier is deleted, and another identifier different from the deleted identifier is given to the identification information from which the identifier is deleted.

  Further, the same object is achieved by a computer program for realizing the wireless communication apparatus having the above-described configuration or the communication control method by a computer, and a computer-readable storage medium storing the computer program. Achieved.

  According to the present invention, there is an effect that information can be distributed over a wide range using a wireless LAN.

It is a block diagram which shows the structure of the radio | wireless communication apparatus which concerns on the 1st Embodiment of this invention. It is a block diagram which shows the structure of the radio | wireless communication apparatus which concerns on the 2nd Embodiment of this invention. It is a figure explaining the beacon frame which concerns on the 2nd Embodiment of this invention. It is a transmission image in the radio | wireless communication apparatus which concerns on the 2nd Embodiment of this invention. It is a transmission image in the radio | wireless communication apparatus which concerns on the 2nd Embodiment of this invention. It is a figure which shows an example of the display content in the terminal which received the beacon frame from the radio | wireless communication apparatus which concerns on the 2nd Embodiment of this invention. It is a figure explaining the 1st process in which the radio | wireless communication apparatus which concerns on the 2nd Embodiment of this invention cooperates and transmits information. It is a figure explaining an example of the identifier in the radio | wireless communication apparatus which concerns on the 2nd Embodiment of this invention. It is a figure explaining the 2nd process in which the radio | wireless communication apparatus which concerns on the 2nd Embodiment of this invention cooperates and transmits information. It is a figure explaining the 3rd process which determines whether the transmission in the radio | wireless communication apparatus which concerns on the 2nd Embodiment of this invention is continued. It is a figure explaining the 4th processing when time limit passes in the radio communications equipment concerning a 2nd embodiment of the present invention. It is a block diagram which shows the structure of the radio | wireless communication apparatus which concerns on the 3rd Embodiment of this invention. It is a figure explaining the ASCII code order which controls the display order in the radio | wireless terminal which concerns on the 3rd Embodiment of this invention. It is a figure which illustrates illustartively the hardware constitutions of the computer (information processing apparatus) which can implement | achieve the 1st thru | or 3rd embodiment of this invention.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

<First Embodiment>
FIG. 1 is a block diagram showing a configuration of a wireless communication apparatus according to the first embodiment of the present invention.

  The wireless communication apparatus 10 according to the present embodiment includes a receiving unit 11, an identifier assigning unit 12, a comparing unit 13, and a communication unit 14.

  The receiving unit 11 receives information including identification information that can identify the device, transmitted from another wireless communication device (not shown).

  The identifier assigning unit 12 assigns an identifier to the identification information included in the information received by the receiving unit 11. However, when an identifier has already been assigned to the identification information included in the received information, the identifier assignment unit 12 deletes the identifier, and adds another identifier different from the deleted identifier to the identification information from which the identifier has been deleted. Give.

  When the comparison unit 13 receives information including the same identification information as the identification information included in the information transmitted by the own device from another wireless communication device, each device receives the information that is the basis of the information. Whether to transmit the information is determined based on the result of comparing the received signal strengths.

  When the communication unit 14 determines to transmit information by the comparison unit 13, the communication unit 14 transmits information including the identification information given the identifier by the identifier assigning unit 12.

  As described above, the first embodiment has an effect that information can be distributed over a wide range using a wireless LAN.

  The reason is that the wireless communication device 10 according to the present embodiment includes the information included in the received information by the identifier adding unit 12 of the wireless communication device 10 that has received information including identification information that can identify the wireless communication device 10 that is the transmission source. An identifier is assigned to the identification information. Then, the received wireless communication device 10 transmits the information including the identification information to which the identifier is added, thereby expanding the reach of the information. Then, in order to eliminate information containing the same identification information from being transmitted in competition from the plurality of wireless communication devices 10, the comparison unit 13 determines whether each wireless communication device 10 is based on the information including the same identification information. This is because it is determined which wireless communication device 10 transmits by comparing the received signal strength when the information is received.

<Second Embodiment>
Next, a second embodiment based on the wireless communication device 10 according to the first embodiment described above will be described. FIG. 2 is a block diagram showing the configuration of the wireless communication device 20 according to the second embodiment of the present invention. However, the configuration illustrated in FIG. 2 is an example, and the present invention is not limited to the wireless communication device 20 illustrated in FIG.

  The wireless communication device 20 according to the present embodiment includes a communication unit 101, an ID storage unit 102, an image storage unit 103, an integration unit 104, a reception unit 108, an identifier deletion unit 109, an identifier assignment unit 110, And a comparison unit 111. The identifier deleting unit 109 and the identifier adding unit 110 are an example of the identifier adding unit 12 according to the first embodiment.

  The ID storage unit 102 stores SSID (identification information) that is identification information of an access point connected to a wireless LAN relayed by the wireless communication device 20. That is, the identification information is information for identifying the wireless communication device 20 (or the wireless LAN of the wireless communication device 20). When the wireless communication apparatus has a multi-SSID function, the ID storage unit 102 may store a plurality of SSIDs.

  The image storage unit 103 stores image information related to the SSID. The image information related to the SSID is image information unique to the SSID stored in the ID storage unit 102 and is preset image information. The SSID and the image information do not necessarily have a one-to-one correspondence. For example, one piece of image information may be associated with a plurality of SSIDs. Additional information for associating the SSID and the image information is stored in the ID storage unit 102 or the image storage unit 103.

  The integration unit 104 integrates the SSID stored in the ID storage unit 102 and the image information stored in the image storage unit 103.

  The receiving unit 108 receives a beacon frame transmitted from another wireless communication device 20.

  The identifier deletion unit 109 deletes the identifier when an identifier is assigned to the SSID included in the beacon frame received by the reception unit 108. If no identifier is assigned, the identifier deleting unit 109 does nothing.

  The identifier assigning unit 110 assigns an identifier to an SSID that has been processed by the identifier deleting unit 109, that is, an SSID to which no identifier is assigned. When the identifier is deleted by the identifier deletion unit 109, the identifier to be assigned is another identifier different from the deleted identifier.

  Based on the result of comparing the RSSI (Received Signal Strength Indication) value when each device receives the beacon frame when the own device and the other device receive the beacon frame including the same SSID. To determine whether to transmit the beacon frame. The RSSI value is the received signal strength and is a numerical value indicating the strength of the received signal entering the wireless communication device 20.

  When the comparison unit 111 determines to transmit a beacon frame, the communication unit 101 transmits a beacon frame including an SSID to which another identifier is added by the identifier adding unit 110. Further, the communication unit 101 also transmits a beacon frame including the SSID of the own device integrated by the integration unit 104.

  Here, details of the beacon frame transmitted by the communication unit 101 will be described. FIG. 3 is a diagram for explaining a beacon frame according to the second embodiment of the present invention. The beacon frame includes, for example, frame control information, duration / ID, destination address, destination address, BSSID (Basic Service Set IDentifier), sequence control information, frame body, and FCS (Frame Check Sequence). Have The frame control information includes, for example, the frame type, the frame destination, whether the transmission source is wireless or wired, and fragment information. The duration / ID includes, for example, information on a scheduled period (time required for frame transmission) in which radio waves are used. The destination address includes the destination MAC address. The destination address includes the destination MAC address. The BSSID includes the MAC address of the access point. The sequence control information includes a sequence number of data to be transmitted, information on a fragment number when fragmented, and the like. The FCS includes data added to check whether there is an error in the received frame.

  The frame body includes TTL (Time To Live) information, an RSSI value, and image information. The TTL information includes a time limit. When the beacon frame is a time limited beacon frame, the expiration date of the beacon frame is set in the TTL information. The RSSI value includes the RSSI value when the SSID is received. The RSSI value is a value set in the PLCP header (not shown) of the received beacon frame. The PLCP header is a header added in the physical layer to the beacon frame shown in FIG. The image information includes image information associated with the SSID.

  A method for transmitting a wide range of beacon frames transmitted from a specific wireless communication device 20 in a place having a large site area where a plurality of wireless communication devices 20 are installed will be described with reference to FIG. FIG. 4 is a transmission image in the wireless communication apparatus according to the second embodiment of the present invention.

  It is assumed that the wireless communication device 22 is physically separated from the wireless communication device 21 but can receive a beacon frame transmitted from the wireless communication device 21. The wireless communication device 23 is in a position where the beacon frame transmitted from the wireless communication device 21 cannot be received. However, it is assumed that the wireless communication device 23 can receive the beacon frame transmitted from the wireless communication device 22.

  Here, the wireless communication device (21, 22, 23) transmits a beacon frame for transmitting one or more other SSIDs in addition to the route for transmitting the SSID stored in the ID storage unit 102 of the own device. It is assumed that there is a route for transmission. Thereby, the wireless communication device can transmit a plurality of SSIDs. However, the wireless communication apparatus normally only needs to transmit the SSID stored in the ID storage unit 102 of the own apparatus.

  First, the communication unit 101 of the wireless communication device 21 transmits a beacon frame (for example, a beacon frame whose SSID is “AAAAA”). The receiving unit 108 of the wireless communication device 22 receives the transmitted beacon frame. The wireless communication device 22 assigns a specific identifier (for example, “−−1”) to the end of the SSID “AAAAA” included in the received beacon frame in the identifier assigning unit 110. It is assumed that a rule for determining an identifier assigned by the identifier assigning unit 110 is predetermined in advance for the wireless communication device.

  The SSID “AAAAA--1” to which the identifier is assigned is a beacon frame in which the communication unit 101 of the wireless communication device 22 transmits the SSID “BBBBB” of the own device stored in the ID storage unit 102 of the wireless communication device 22. It is transmitted as a separate beacon frame.

  The beacon frame transmitted from the wireless communication device 22 and having the SSID “AAAAA-−1” is received by the reception unit 108 of the wireless communication device 23. The wireless communication device 23 uses the identifier deletion unit 109 to delete the identifier “−−1” assigned by the wireless communication device 22 from the SSID “AAAAA--1” included in the received beacon frame.

  The wireless communication device 23 assigns an identifier other than the identifier assigned by the wireless communication device 22 (for example, “−2”) to the SSID after deletion by the identifier assigning unit 110. That is, the identifier to be assigned is different from the identifier deleted by the identifier deletion unit 109.

  The SSID “AAAAA--2” to which another identifier is assigned transmits the SSID “CCCCC” of the own device stored in the ID storage unit 102 of the wireless communication device 23 by the communication unit 101 of the wireless communication device 23. It is transmitted as a beacon frame different from the beacon frame.

  A wireless terminal near the wireless communication device 23 receives a beacon frame having the SSID “AAAAA--2”. The SSID “AAAAA” and the SSID “AAAAA--2” beacon frames are different in SSID, but the image information included in each beacon frame is output from the image storage unit 103 of the wireless communication device 21. The same. That is, it becomes possible for a wireless terminal in a position where it cannot receive a beacon frame transmitted from the wireless communication device 21 to obtain the contents of the beacon frame.

  Further, as illustrated in FIG. 5, the wireless communication device 24 is located adjacent to the wireless communication device 22, and the wireless communication device 24 and the wireless communication device 22 receive information including the SSID “AAAAA” from the wireless communication device 21. A case of receiving will be described.

  The wireless communication device 24 receives the beacon frame (the beacon frame whose SSID is “AAAAA”) transmitted by the wireless communication device 21, and performs the same processing as the wireless communication device 22 described above. That is, the wireless communication device 22 and the wireless communication device 24 transmit a beacon frame with the SSID “AAAAA--1.” Since the transmitted beacon frames have the same SSID, they compete. For this reason, in the second embodiment, one of the wireless communication device 22 and the wireless communication device 24 controls to transmit the SSID of the wireless communication device 21.

  For example, it is determined in advance that a wireless communication device having a lower RSSI value transmits the SSID of the wireless communication device 21. This is because there is a high possibility that a wireless communication device having a lower RSSI value when a beacon frame transmitted from the wireless communication device 21 is received is located far from the wireless communication device 21. Therefore, it can be expected that the SSID reaches a wider range when the wireless communication device having a lower RSSI value transmits.

  The wireless communication device 22 and the wireless communication device 24 assign a specific identifier to the end of the SSID in the identifier assigning unit 110 described above. Then, the wireless communication device 22 and the wireless communication device 24 send the SSID “AAAAA--1” to the beacon frame other than the beacon frame in which the SSID of the own device stored in the ID storage unit 102 is transmitted by the communication unit 101. Send as. Both devices (22 and 24) further give an RSSI value indicating the radio wave intensity when the device receives the beacon frame from the wireless communication device 21 to the beacon frame to be transmitted.

  Then, the wireless communication device 22 and the wireless communication device 24 receive the beacon frame transmitted from each other.

  The wireless communication device 22 and the wireless communication device 24 use the comparison unit 111 to compare the RSSI value included in the received beacon frame with the RSSI value when the device itself receives the beacon frame from the wireless communication device 21. As a result of the comparison, when the RSSI value when the own device receives the beacon frame from the wireless communication device 21 is smaller, the wireless communication device (22 or 24) transmits the SSID of the wireless communication device 21. On the other hand, when the RSSI value when the own device receives the beacon frame from the wireless communication device 21 is larger, the wireless communication device (22 or 24) stops the transmission of the SSID of the wireless communication device 21.

  As a result of determining that one of the wireless communication device 22 and the wireless communication device 24 does not transmit by these processes, the transmission of the SSID of the wireless communication device 21 is stopped. Thereby, the competition by transmitting the same SSID is eliminated.

  Next, the present embodiment will be described by taking as an example a case where advertisements and advertisements of each store or the commercial facility are transmitted in a large commercial facility.

  In the wireless communication device 20 installed in each store or the commercial facility, the communication unit 101 transmits a beacon frame including SSID indicating the sale information being executed and store information.

  When the customer who visits the commercial facility receives the beacon frame, the customer includes the information included in the beacon frame (image information included in the frame body of the beacon frame in FIG. 3). can do. For example, the customer knows what kind of information is available in stores and commercial facilities in the vicinity of the range where the beacon frame reaches, and the characteristics of the stores, etc., from the display content as shown in FIG.

  FIG. 6 is a diagram illustrating an example of display contents on a terminal that has received a beacon frame from a wireless communication apparatus according to the second embodiment of the present invention. In addition, the customer can automatically use the SSID network by selecting the displayed SSID, and then open the website of each store to open a coupon that can be used at each store. It is also possible to know the details of the deals.

  For example, information such as a time sale is information that a person who is far away from a store that carries out the time sale wants to know. The situation where the time sale can be known only when the person is in the vicinity of the store is not beneficial for the customer or the store.

  Therefore, as shown in FIG. 7, wireless communication devices (AP1,..., AP9) set in each store of the commercial facility cooperate. As a result, the time sale information of the store 403 having the AP1 is notified not only to the range where the radio communication device transmitting the SSID can reach, but also to the wireless terminal of the customer far away from the store 403. The FIG. 7 is a diagram illustrating a first process in which the wireless communication apparatus according to the second embodiment of the present invention cooperates to transmit information. The “information in the beacon” shown in FIG. 7 describes only the portions necessary for the description from the information included in the beacon frame. The same applies to the subsequent drawings.

  For example, it is assumed that the store 403 performs a time sale from 14:00 to 15:00. At 14:00, for example, the AP 1 switches the image information of the SSID “AAAAA” to image information indicating the contents of the time sale, and starts transmitting a beacon frame.

  It is assumed that the beacon frame (SSID “AAAAA”) transmitted from AP1 reaches AP5 a little away. However, since there is a distance from AP1 to AP9 in the commercial facility, AP1 time sale information does not reach customers in the vicinity of AP9.

  Here, when the radio wave transmitted from AP5 reaches AP9, AP5 is transmitted from AP1 by having an interface (path) capable of transmitting another SSID separately from the SSID managed and transmitted by AP5. SSID can be transmitted.

  However, when the AP5 transmits the SSID “AAAAA” as it is, the SSID “AAAAA” transmitted from the AP1 and the SSID “AAAAA” transmitted from the AP5 conflict.

  In order to resolve the conflict, the identifier assigning unit 110 of the AP 5 assigns an identifier (character string) that makes the SSID distinguishable at the end of the SSID transmitted by the communication unit 101 or the like.

  FIG. 8 is a diagram for explaining an example of an identifier in the wireless communication apparatus according to the second embodiment of the present invention. According to FIG. 8, the identifier is determined based on the number of HOPs. The number of HOPs is the number of relay facilities through which the communication partner is reached. The identifier shown in FIG. 8 is an example, and the present invention is not limited to this. 8 is common to the wireless communication devices (AP1,..., AP9), and is defined in advance.

  Here, the AP5 is the first relay facility because the AP5 receives the beacon frame transmitted by the AP1 and transmits the SSID from the AP5. Therefore, the identifier assigning unit 110 of the AP 5 assigns the identifier “−−1” corresponding to the HOP number “1” to the SSID.

  The AP 5 transmits, as a beacon frame, the SSID “AAAAA--1” added with “−-1” at the end together with the image information received as the SSID “AAAAA”.

  It is assumed that the SSID “AAAAA--1” transmitted by the AP 5 can reach the AP 9.

  The SSID “AAAAA” transmitted by the AP1 and the SSID “AAAAAA--1” transmitted by the AP5 are different in SSID, but the difference is only the identifier “−1”, and the image information is the same. Further, a terminal that has received the SSID “AAAAA--1” transmitted from the AP 5 can connect to the Web site of the AP 1 via the AP 5 network.

  So far, the case where AP5 mediates between AP1 and AP9 has been described, but the case where AP6 also mediates after AP5 will be described.

  The AP 6 that has received the SSID “AAAAA-−1” deletes the identifier assigned by the AP 5 by the identifier deletion unit 109. Since the identifier deletion unit 109 recognizes at which position of the SSID the identifier is assigned, the identifier assigned by the AP 5 can be deleted.

  Since the AP 6 is the second relay facility, the identifier “−-2” corresponding to the number of HOPs “2” is assigned to the SSID, and the beacon frame is transmitted as the SSID “AAAAA--2”.

  The AP 9 receives the SSID “AAAAA--2” transmitted by the AP 6. Then, since the number of HOPs is “3” from AP1, AP9 assigns an identifier “−-3” corresponding thereto and transmits SSID “AAAAA--3”.

  Thereby, the customer in the vicinity of AP9 can acquire the image information transmitted from AP1.

  Incidentally, although the number of HOPs is described without providing a limit in FIG. 8, a limit may be set such that the upper limit of the number of HOPs is “10” according to actual operation.

  In the following description, AP6 will be described on the assumption that it does not exist. FIG. 9 is a diagram illustrating a second process in which the wireless communication device according to the second embodiment of the present invention cooperates to transmit information.

  As shown in FIG. 9, when the SSID “AAAAA--1” is received by the AP 9, the SSID “AAAAA--1” may actually be received by the AP 8 near the AP 9 in addition to the AP 9. There is sex.

  In that case, AP8 and AP9 each assign the same identifier, and transmit a beacon frame as the same SSID “AAAAA--2”. However, in this case, since an SSID conflict occurs, control is performed so that SSIDs having the same contents are not transmitted.

  Here, for example, when a plurality of wireless communication apparatuses receive the same SSID (here, “AAAAAA- 1”), the wireless communication apparatus having a low RSSI value when receiving the same SSID transmits the SSID. Let's make an arrangement.

  FIG. 10 is a diagram illustrating a third process for determining whether or not to continue transmission in the wireless communication apparatus according to the second embodiment of the present invention.

  In the present embodiment, the RSSI value when the SSID “AAAAA--1” is received is referred to. For example, as shown in FIG. 10, each of AP8 and AP9 includes an RSSI value when SSID “AAAAA--1” is received in SSID “AAAAA--2”, one packet or a certain amount of beacon. Send as a frame.

  AP8 receives the beacon frame transmitted by AP9. Then, the comparison unit 111 of the AP 8 includes the RSSI value “−50” when the AP 8 receives the SSID “AAAAA-−1” and the RSSI value “−55” included in the SSID “AAAAA--2” received from the AP 9. ". As a result of the comparison, the AP 8 determines that the RSSI value included in the SSID “AAAAA--2” received from the AP 9 is lower. And AP8 stops transmission of subsequent SSID "AAAAAA--2".

  On the other hand, the comparison unit 111 of the AP 9 includes the RSSI value “−55” when the AP 9 receives the SSID “AAAAA-−1” and the RSSI value “−50” included in the SSID “AAAAA--2” received from the AP 8. ". By comparison, the AP 9 determines that the RSSI value “−55” when the AP 9 receives the SSID “AAAAA-−1” is lower. And AP9 continues transmission of SSID "AAAAAA--2".

  Thereby, even if the transmission of the SSID “AAAAA--2” from the AP 8 and the AP 9 competes for a moment, the competition is resolved and the competition does not continue.

  FIG. 11 is a diagram illustrating a fourth process when the time limit has passed in the wireless communication apparatus according to the second embodiment of the present invention. The SSID “AAAAA”, SSID “AAAAA--1”, and SSID “AAAAA--2” also include time limit information (TTL information). After 15:00, AP1 switches the image of SSID “AAAAA” to a normal image (image before 14:00) and transmits it. And transmission of SSID "AAAAA--1" and SSID "AAAAA--2" is complete | finished in each radio | wireless communication apparatus.

  In the present embodiment, the image information related to the SSID has been described as being included in the beacon frame and transmitted. However, the data to be transmitted is not limited to image information, and may include only character information or voice information, and the type of data is not particularly limited.

  As described above, the second embodiment has an effect that information can be distributed over a wide range using a wireless LAN.

  The reason is that the wireless communication device 20 according to the present embodiment controls the plurality of wireless communication devices 20 to transmit SSIDs (beacon frames) while controlling to prevent the same SSID from being transmitted in competition. Because it does.

  Thereby, for example, in a large commercial facility, using a wireless LAN access point, it is possible to improve the timeliness of advertisement distribution and improve the comprehensiveness for a large number of users (customers) through a wide range of information distribution. .

<Third Embodiment>
Next, a third embodiment based on the wireless communication apparatus according to the second embodiment described above will be described.

  When a plurality of SSIDs are displayed on the display screen of a wireless terminal that performs display based on the SSID transmitted from the wireless communication device, the SSID indicating information to be preferentially transmitted is displayed as high as possible on the display screen. It is desirable that For this reason, the wireless communication device normally displays an SSID character string embedded in a plurality of displayed SSIDs with priority over the display screen of the wireless terminal at a specified time. To control.

  FIG. 12 is a block diagram showing a configuration of a wireless communication apparatus according to the third embodiment of the present invention. However, the configuration shown in FIG. 12 is an example, and the present invention is not limited to the wireless communication apparatus shown in FIG.

  In addition to the wireless communication device 20, the wireless communication device 30 further includes a character string storage unit 105, an instruction unit 106, and a management unit 107.

  The character string storage unit 105 stores a character string to be given to the SSID so as to be displayed preferentially on the display screen of the wireless terminal.

  The instruction unit 106 instructs the character string stored in the character string storage unit 105 to be added to the SSID when it is desired to control the order displayed on the wireless terminal.

  The management unit 107 manages the current time.

  A processing flow of this embodiment will be described.

  The instruction unit 106 holds a predetermined time (time interval) for each SSID, and refers to the management unit 107 periodically. When the designated time is reached, the instruction unit 106 instructs the integration unit 104 to give the priority character string stored in the character string storage unit 105 to the head of the SSID character string.

  For example, the instruction unit 106 stores from 1 pm to 3 pm, and periodically refers the time to the management unit 107. When the designated time (1 pm) is reached, the instruction unit 106 instructs the integration unit 104 to give the priority character string stored in the character string storage unit 105 to the head of the SSID character string. The integration unit 104 retrieves the priority character string from the character string storage unit 105 and assigns the priority character string to the head of the SSID. The communication unit 101 transmits a beacon frame including the SSID after adding the character string.

  Thereafter, the instruction unit 106 periodically continues the above process by referring to the management unit 107. Then, the instruction unit 106 does not give instructions to the integration unit 104 after 3 pm. As a result, no character string is assigned to the SSID included in the beacon frame transmitted by the communication unit 101. Then, the display based on the beacon frame in the wireless terminal that has received the beacon frame returns to the position (priority position) that was displayed before 1 pm.

  The present embodiment can also display a time-limited SSID (for example, information such as a time bargain) by using such a characteristic SSID. The time-limited SSID wants to display the SSID (advertisement) on the customer's wireless terminal with increased urgency. In other words, since it is assumed that a plurality of SSIDs are displayed on the display screen of the customer's wireless terminal, the time-restricted SSID is displayed as high as possible on the display screen of the customer's wireless terminal. Desirable for improvement. For this reason, the wireless communication device 30 displays a display so that the display on the display screen of the customer's wireless terminal is at a higher level within a certain period of time even in an SSID that is normally buried around the middle of the display screen. A character string in which is given priority is assigned to the SSID. However, when the designated time ends, the instruction unit 106 does not instruct the addition of the character string. As a result, the SSID returns to the normal SSID.

  For example, when the display order of the SSID in the wireless terminal is determined by the character string order of the ASCII code shown in FIG. 13 in addition to the RSSI value, the wireless communication device 30 sets the character string in the higher order in the ascending order as the SSID. Give. By doing so, among the SSIDs having the same RSSI value, the time-limited SSID can be displayed at the upper level. FIG. 13 is a diagram for explaining the ASCII code order for controlling the display order in the wireless terminal according to the third embodiment of the present invention. However, in the present embodiment, in the display of the character string on the wireless terminal, it has been described that the display position is higher in the order of the ASCII code.

  As described above, in the third embodiment, on the display screen of the wireless terminal that performs display based on the SSID transmitted from the wireless communication device 30, the SSID that is to be displayed preferentially is displayed at the top. There is an effect that it can be controlled.

  The reason is that the wireless communication apparatus 30 according to the present embodiment controls the display order by adding a character string to the head of the SSID that is to be displayed with priority.

(Hardware configuration)
In the above-described embodiment, each unit shown in FIGS. 1, 2, and 12 may be practiced by a dedicated device, but can be regarded as a function (processing) unit (software module) of a software program. However, various configurations can be envisaged when mounting each part shown in these drawings. An example of the hardware environment in such a case will be described with reference to FIG.

  FIG. 14 is a diagram illustrating an exemplary hardware configuration of a computer (information processing apparatus) that can implement the first to third embodiments of the present invention. That is, FIG. 14 shows a computer (information processing device) that can realize all or part of the wireless communication device 10 shown in FIG. 1, the wireless communication device 20 shown in FIG. 2, and the wireless communication device 30 shown in FIG. ). FIG. 14 shows a hardware environment in which each function in the above-described embodiment can be realized.

  14 includes a CPU (Central Processing Unit) 9001, a display 9002, a communication interface (I / F) 9003, a ROM (Read Only Memory) 9004, a RAM (Random Access Memory) 9005, and a hard disk device ( HD) 9006, and these are connected via a bus 9007. The hard disk device (HD) 9006 stores a program group 9006A and various kinds of stored information 9006B. The program group 9006A has functions corresponding to the blocks (units) of the wireless communication device 10 shown in FIG. 1, the wireless communication device 20 shown in FIG. 2, and the wireless communication device 30 shown in FIG. It is a computer program for realizing. Various kinds of stored information 9006B are, for example, the ID recording unit 102 and the image recording unit 103 shown in FIG. 2, and the character string recording unit 105 shown in FIG. A communication interface 9003 is a general communication unit that realizes communication with an external device via the network 9100.

  In the information processing apparatus 9000, the CPU 9001 of the hardware executes a computer program capable of realizing the functions of the block diagram or the flowchart referred to in the description of the above-described embodiment. That is, the CPU 9001 executes the computer program using the hardware resources of the information processing apparatus 9000 shown in FIG. 14 to achieve the functions of the embodiment of the present invention. The computer program supplied to the information processing apparatus 9000 may be stored in a readable / writable RAM 9005 or a non-volatile storage device (storage medium) such as the hard disk device 9006.

  In the above-described case, a general procedure can be adopted as a method for supplying a computer program into the apparatus. As the method, for example, there are a method of installing in the apparatus via various storage media such as a CD-ROM, and a method of downloading from the outside via a network 9100 such as the Internet. In such a case, the embodiment of the present invention can be understood to be configured by a code constituting the computer program or a computer-readable storage medium in which the code is stored.

DESCRIPTION OF SYMBOLS 10 Wireless communication apparatus 11 Receiving part 12 Identifier provision part 13 Comparison part 14 Communication part 20 Wireless communication apparatus 21 Wireless communication apparatus 22 Wireless communication apparatus 23 Wireless communication apparatus 24 Wireless communication apparatus 30 Wireless communication apparatus 101 Communication part 102 ID memory | storage part 103 Image Storage unit 104 Integration unit 105 Character string storage unit 106 Instruction unit 107 Management unit 108 Reception unit 109 Identifier deletion unit 110 Identifier assignment unit 111 Comparison unit 9000 Information processing device (computer)
9001 CPU
9002 Display 9003 Communication interface (I / F)
9004 ROM
9005 RAM
9006 Hard disk device (HD)
9006A Program group 9006B Various stored information 9007 Bus 9100 Network

Claims (7)

Receiving means for receiving information including identification information that can identify the device, transmitted from another wireless communication device;
Identifier giving means for giving an identifier to the identification information included in the information received by the receiving means;
When information including the same identification information as the identification information included in the information transmitted by the own device is received from another wireless communication device, the received signal strength when each device receives the information that is the basis of the information. Comparing means for determining whether to transmit the information based on the comparison result;
A communication unit that transmits information including identification information given an identifier by the identifier giving unit when the comparison unit decides to send the information;
With
When the identifier is already added to the identification information included in the received information, the identifier adding means deletes the identifier, and adds another identifier different from the deleted identifier to the identification information from which the identifier is deleted. Wireless communication device to be granted. The comparison means includes
The wireless communication apparatus according to claim 1, wherein the wireless communication apparatus having the lower received signal strength determines to transmit the information. The wireless communication apparatus according to claim 1, wherein the identifier is a character string uniquely determined by the number of HOPs. The wireless communication apparatus according to any one of claims 1 to 3, wherein the transmitted information includes image information associated with the identification information. Claims for controlling a display order when a plurality of pieces of the information are displayed on a terminal that has received the information by adding a character string to the head of the identification information and transmitting the information including the identification information after the addition. Item 5. The wireless communication device according to any one of Items 1 to 4. Receives information including identification information that can be used to identify the device, transmitted from another wireless communication device,
Giving an identifier to the identification information included in the received information,
When information including the same identification information as the identification information included in the information transmitted by the own device is received from another wireless communication device, the received signal strength when each device receives the information that is the basis of the information. Decide whether to send that information based on the comparison,
When it is determined to transmit the information, the information including the identification information given the identifier is transmitted,
However, when the identifier is already added to the identification information included in the received information, the communication control is performed to delete the identifier and add another identifier different from the deleted identifier to the identification information from which the identifier is deleted. Method. A receiving function for receiving information including identification information that can identify the device, transmitted from another wireless communication device;
An identifier giving function for giving an identifier to the identification information included in the information received by the receiving function;
When information including the same identification information as the identification information included in the information transmitted by the own device is received from another wireless communication device, the received signal strength when each device receives the information that is the basis of the information. A comparison function that determines whether or not to transmit the information based on the comparison result;
A communication function for transmitting information including identification information given an identifier by the identifier giving function when it is determined to send the information by the comparison function;
However, when the identifier is already added to the identification information included in the received information, the identifier is deleted, and the identifier is deleted, and another identifier different from the deleted identifier is added to the deleted identification information. A computer program that causes a computer to realize a grant function.

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