JP2020099024A - Control device, access point, connection control method, and control program - Google Patents

Abstract

To provide a control device, an access point, a connection control method, and a control program capable of improving user convenience.SOLUTION: In a communication system 1, a connection control part of an access point 10-1 determines whether to continue or disconnect the wireless connection between the access point 10-1 and a wireless terminal 30 that is wirelessly connected to the access point 10-1 on the basis of a switching position parameter and a current position parameter. The first switching position parameter is a parameter regarding the relative position of the access point 10-1 and the wireless terminal 30 when the wireless connection between the wireless terminal 30 and the access point 10-1 was cut by a user in the past and the access point to which the wireless terminal 30 was connected was switched from the access point 10-1 to an access point 10-2. The current position parameter is a parameter regarding the current position of the wireless terminal 30 wirelessly connected to the access point 10-1.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to a control device, an access point, a connection control method, and a control program.

A technique of selecting an access point to be connected from a plurality of access points has been proposed (for example, Patent Document 1). In the technique disclosed in Patent Document 1, an application by a user who has moved from the wireless communicable area of the first network outside the wireless communicable area of the second network to the wireless communicable area of both the first network and the second network. When the access point connected before the movement is not detected by the detection means during the predetermined operation when executing, the history information is referred to according to a predetermined selection rule from among the access points detected by the detection means. And select the access point to connect to when you run the application.

JP, 2018-19285, A

The technique disclosed in Patent Document 1 is a technique for selecting an access point to be connected from the detected access points when the access point connected before the movement is not detected. For this reason, when the access point connected before the movement is detected, the access point is not switched, and the convenience of the user may be impaired.

An object of the present disclosure is to provide a control device, an access point, a connection control method, and a control program that can improve user convenience.

In the control device according to the first aspect, the connection between the wireless terminal and the first access point has been disconnected by the user in the past, and the access point to which the wireless terminal is connected is the same from the first access point to the first access point. A first switching position parameter relating to a relative position between the first access point and the wireless terminal when switched to a second access point arranged in a local area network; and the first connection point connected to the first access point. A connection control unit that determines whether to continue or disconnect the connection between the wireless terminal and the first access point based on a current position parameter related to the current position of the wireless terminal.

In the connection control method according to the second aspect, the connection between the wireless terminal and the first access point is disconnected by the user in the past, and the connection destination access point of the wireless terminal is changed from the first access point to the first access point. A switching position parameter regarding a relative position between the first access point and the wireless terminal when switched to a second access point arranged in the same local area network, and the wireless connected to the first access point. It is determined whether to continue or disconnect the connection between the wireless terminal and the first access point based on the current position parameter regarding the current position of the terminal.

In the control program according to the third aspect, the connection between the wireless terminal and the first access point is disconnected by the user in the past, and the access point to which the wireless terminal is connected is the same from the first access point to the first access point. A switching position parameter regarding the relative position between the first access point and the wireless terminal when switched to the second access point arranged in the local area network, and the wireless terminal connected to the first access point. And determining whether to continue or disconnect the connection between the wireless terminal and the first access point,
The process is executed by the first access point.

According to the present disclosure, it is possible to provide a control device, an access point, a connection control method, and a control program that can improve user convenience.

It is a figure which shows an example of a communication system containing the access point which has the control apparatus of 1st Embodiment. It is a block diagram showing an example of an access point which has a control device of a 1st embodiment. It is a block diagram which shows an example of the access point which has the control apparatus of 2nd Embodiment. It is a figure which shows an example of the terminal information table of 2nd Embodiment. It is a flowchart which shows an example of the update process of the terminal information table of 2nd Embodiment. It is a figure which shows an example of the communication system of 2nd Embodiment. It is a flow chart which shows an example of cutting control processing of a 2nd embodiment. It is a figure with which explanation of an example of cutting control of a 2nd embodiment is provided. It is a figure with which explanation of an example of cutting control of a 2nd embodiment is provided. It is a figure with which explanation of an example of cutting control of a 3rd embodiment is provided. It is a figure which shows the hardware structural example of a control apparatus.

Hereinafter, embodiments will be described with reference to the drawings. In addition, in the embodiment, the same or equivalent elements are denoted by the same reference numerals, and overlapping description will be omitted.

<First Embodiment>
<Outline of communication system>
FIG. 1 is a diagram showing an example of a communication system including an access point having the control device of the first embodiment.

In FIG. 1, the communication system 1 includes access points 10-1 and 10-2 and a wireless terminal 30. The access point 10-1 and the access point 10-2 are connected to each other wirelessly or by wire, and constitute a local area network (LAN) arranged in a home, for example. The access points 10-1 and 10-2 are connected to the Internet (not shown) outside the LAN. The access points 10-1 and 10-2 can be collectively referred to as the access point 10. Here, as an example, the numbers of the access points 10 and the wireless terminals 30 arranged in the LAN are two and one, respectively, but the numbers are not limited to this.

The wireless terminal 30 communicates with a device (not shown) provided in the LAN and the Internet (not shown) by connecting to either the access point 10-1 or the access point 10-2. can do.

<Example of access point configuration>
FIG. 2 is a block diagram showing an example of an access point having the control device of the first embodiment. Since the access point 10-1 and the access point 10-2 have the same configuration, the configuration of the access point 10-1 will be described.

In FIG. 2, the access point 10-1 has a wireless communication unit 11 and a control unit (control device) 12.

The wireless communication unit 11 transmits or receives a wireless signal to or from the wireless terminal 30 when the wireless terminal 30 is wirelessly connected to the access point 10-1. For example, the wireless communication unit 11 transmits a wireless signal obtained by performing transmission wireless processing on a signal received from the control unit 12 via an antenna (not shown). The wireless communication unit 11 also outputs to the control unit 12 a reception signal obtained by performing reception radio processing on a radio signal received via an antenna (not shown).

The control unit (control device) 12 has a connection control unit 12A. The connection control unit 12A wirelessly connects to the access point 10-1 based on the “switching position parameter (hereinafter, sometimes referred to as “first switching position parameter”)” and the “current position parameter”. It is determined whether to continue or disconnect the wireless connection between the existing wireless terminal 30 and the access point 10-1. Here, the "first switching position parameter" means that the wireless connection between the wireless terminal 30 and the access point 10-1 has been disconnected by the user in the past and the access point to which the wireless terminal 30 is connected is the access point from the access point 10-1 to the access point. This is a parameter relating to the relative position between the access point 10-1 and the wireless terminal 30 when switched to 10-2. The “current position parameter” is a parameter related to the current position of the wireless terminal 30 wirelessly connected to the access point 10-1.

With the configuration of the control unit (control device) 12, the relative position between the wireless terminal 30 and the access point 10-1 indicated by the first switching position parameter, and the wireless terminal 30 and the access point 10-1 indicated by the current position parameter. For example, when the relative positions are the same or the difference between them is within a predetermined range, the wireless connection between the access point 10-1 and the wireless terminal 30 can be automatically disconnected. As a result, the control unit (control device) 12 can prompt the wireless terminal 30 to wirelessly connect to the access point 10-2, so that the convenience of the user can be improved.

<Second Embodiment>
The second embodiment relates to a more specific embodiment. The basic configuration of the communication system of the second embodiment is the same as that of the communication system 1 of the first embodiment, and instead of the access points 10-1 and 10-2 in FIG. , 50-2).

<Example of access point configuration>
FIG. 3 is a block diagram showing an example of an access point having the control device of the second embodiment. Since the access point 50-1 and the access point 50-2 have the same configuration, the configuration of the access point 50-1 will be described. Here, although not shown, each of the access points 50-1 and 50-2 will be described on the assumption that each has a plurality of antennas.

In FIG. 3, the access point 50-1 includes a wireless communication unit 11, a control unit (control device) 51, and a LAN communication unit 52.

Similar to the wireless communication unit 11 of the first embodiment, the wireless communication unit 11 transmits or receives a wireless signal with the wireless terminal 30 when the wireless terminal 30 is wirelessly connected to the access point 50-1. To do. For example, the wireless communication unit 11 transmits a wireless signal obtained by subjecting a signal received from the control unit 51 to transmission wireless processing, via an antenna (not shown). The wireless communication unit 11 also outputs to the control unit 51 a reception signal obtained by performing reception wireless processing on a radio signal received via an antenna (not shown).

In addition, the wireless communication unit 11 measures a radio wave intensity (for example, Received Signal Strength Indicator (RSSI)) when a signal transmitted from the wireless terminal 30 is received in a predetermined cycle.

In addition, the wireless communication unit 11 communicates with the wireless terminal 30 while changing the communication rate (for example, MCS: Modulation and Coding Scheme) according to the communication quality between the access point 50-1 and the wireless terminal 30, for example. connect.

The LAN communication unit 52 communicates with other access points (that is, the access point 50-2) arranged on the LAN including the access point 50-1 via a wire or wirelessly. For example, when the wireless terminal 30 is newly wirelessly connected to the access point 50-2, the access point 50-2 sends out an “ARP (Address Resolution Protocol) signal” to the LAN, so the LAN communication unit 52 causes the LAN communication unit 52 to send the ARP signal. To receive. With this ARP signal, the control unit 51 can acquire a new IP address of the wireless terminal 30 newly wirelessly connected to the access point 50-2, as described later.

The control unit (control device) 51 includes an acquisition unit 51A, an existence confirmation control unit 51B, a table management unit 51C, a storage unit 51D, and a connection control unit 51E.

The acquisition unit 51A wirelessly transmits a sounding frame at a predetermined cycle via the wireless communication unit 11 and a plurality of antennas (not shown). The wireless terminal 30 that receives this sounding frame sends information about the amplitude and phase of the sounding frame received by each antenna (not shown) (that is, channel state information: CSI (Channel State Information)) to the access point 50-1. I will send it. Then, the acquisition unit 51A acquires the channel state information via the antenna (not shown) and the wireless communication unit 11. Then, the acquisition unit 51A holds the channel state information acquired last (that is, most recently). Note that this channel state information is also used when performing transmission beamforming.

In addition, the acquisition unit 51A acquires information regarding the radio field intensity from the wireless communication unit 11 in a predetermined cycle. Then, the acquisition unit 51A holds the information on the radio field intensity acquired last (that is, most recently).

In addition, the acquisition unit 51A acquires information regarding the communication rate from the wireless communication unit 11 in a predetermined cycle. Then, the acquisition unit 51A holds information about the communication rate that was acquired last (that is, most recently).

The presence confirmation control unit 51B is a "presence confirmation signal" for confirming whether or not the wireless terminal 30 exists in the LAN when the wireless connection between the access point 50-1 and the wireless terminal 30 is disconnected. Is transmitted to the wireless communication unit 11. The presence confirmation signal includes the IP address of the wireless terminal 30 connected to the access point 50-1 or the IP address indicated by the ARP signal transmitted from the access point 50-2 after the disconnection timing. When the wireless terminal 30 exists in the LAN, the wireless terminal 30 receives the presence confirmation signal and transmits a response signal to the presence confirmation signal. Therefore, the access point 50-1 can determine whether or not the wireless terminal 30 is present in the LAN, depending on whether or not the response signal is received. A Ping or ARP packet may be used as the presence confirmation signal. Then, the presence confirmation control unit 51B outputs the presence notification information indicating whether or not the wireless terminal 30 is present in the LAN to the table management unit 51C.

The table management unit 51C updates the “terminal information table” stored in the storage unit 51D when the wireless connection between the access point 50-1 and the wireless terminal 30 is disconnected. For example, the table management unit 51C acquires the radio field intensity, the communication rate, and the channel state information held by the acquisition unit 51A when the wireless connection between the access point 50-1 and the wireless terminal 30 is disconnected. .. Also, the table management unit 51C, when the wireless connection is disconnected, the IP address and the MAC address of the wireless terminal 30 used before the wireless connection is disconnected from the connection control unit 51E, or the wireless connection thereof. The IP address indicated by the ARP signal transmitted from the access point 50-2 after the disconnection timing of is acquired. Further, the table management unit 51C acquires presence notification information indicating whether or not the wireless terminal 30 exists in the LAN from the existence confirmation control unit 51B when the wireless connection is disconnected. The table management unit 51C also acquires the time (disconnection time) when the wireless connection between the access point 50-1 and the wireless terminal 30 is disconnected.

The table management unit 51C updates the "terminal information table" using the information acquired in this way. FIG. 4 is a diagram showing an example of the terminal information table of the second embodiment. In FIG. 4, the terminal information table includes items of “radio field strength (RSSI)”, “communication rate (MCS)”, “phase data at disconnection”, “IP address”, “reconnection OK”, and “disconnection time”. Is included. Among these items, "phase data at the time of disconnection" corresponds to the above channel state information, and "disconnection time" corresponds to the above disconnection time. When the presence notification information indicates that the wireless terminal 30 exists in the LAN, “OK” is entered in the “reconnection OK” item, and the presence notification information is stored in the LAN. When it indicates that the wireless terminal 30 does not exist, “NG” is input. Here, if the wireless terminal 30 is present in the LAN even after the wireless connection between the access point 50-1 and the wireless terminal 30 is disconnected, in order for the user to wirelessly connect the wireless terminal 30 to the access point 50-2. It can be judged that it has been disconnected. Therefore, "OK" is entered in the "Reconnect OK" item. Each entry in FIG. 4 is added when the wireless connection between the wireless terminal 30 corresponding to the MAC address (that is, the terminal identifier) and the access point 50-1 is disconnected. Since a plurality of types of MAC addresses are stored in the terminal information table of FIG. 4, a plurality of entries corresponding to different wireless terminals 30 are stored.

The storage unit 51D stores the above-mentioned terminal information table.

When the “disconnection control execution condition” is satisfied, the connection control unit 51E determines to automatically disconnect the wireless connection between the access point 50-1 and the wireless terminal 30. The “disconnection control execution condition” is, for example, that both the “first condition” and the “second condition” are satisfied. The “first condition” is, for example, “first direction” indicated by “first direction parameter” included in “first switching position parameter” and “second direction parameter” indicated by “current position parameter”. That is, the angle value formed with the “second direction” is included in the “first range”. Further, the “second condition” is, for example, the “second distance parameter” included in the “current position parameter” is the “first distance” indicated by the “first distance parameter” included in the “first switching position parameter”. It is equal to or less than the “second distance” shown.

As described above, in the “first switching position parameter”, the wireless connection between the wireless terminal 30 and the access point 10-1 has been disconnected by the user in the past, and the connection destination access point of the wireless terminal 30 accesses from the access point 50-1. This is a parameter relating to the relative position between the access point 50-1 and the wireless terminal 30 when switched to the point 50-2. The “first direction parameter” is a parameter related to the direction in which the wireless terminal 30 is located with respect to the access point 50-1. Specifically, the “first direction parameter” corresponds to the “channel state information” stored in the “terminal information table”. The “first distance parameter” is a parameter related to the distance between the wireless terminal 30 and the access point 10-1. Specifically, the “first distance parameter” corresponds to the radio field intensity and the communication rate stored in the “terminal information table”.

Further, as described above, the “current position parameter” is a parameter regarding the current position of the wireless terminal 30 wirelessly connected to the access point 50-1. In addition, the “second direction parameter” is specifically the channel currently held by the acquisition unit 51A (that is, at the timing of determining whether or not the “cut control execution condition” is satisfied). It is state information. In addition, the “second distance parameter” is, specifically, the radio wave currently held by the acquisition unit 51A (that is, at the timing of determining whether or not the “cut control execution condition” is satisfied). Strength and communication rate.

That is, if the “disconnection control execution condition” is satisfied, the wireless terminal 30 is currently located at or near the position where the wireless connection between the wireless terminal 30 and the access point 10-1 was disconnected by the user in the past. It means that. As a result, even when the wireless terminal 30 is located in a place where it can be connected to both the access point 50-1 and the access point 50-2, the access point is automatically changed based on the past switching record of the access points by the user. The wireless connection with 50-1 can be disconnected. As a result, the wireless terminal 30 can be prompted to automatically wirelessly connect to the access point 50-2 to which the wireless terminal 30 has been wirelessly connected by the user, so that the convenience of the user can be improved.

Here, the “first switching position parameter” used for the “disconnection control execution condition” may be limited to the one in which the item “reconnection OK” in the terminal information table is “OK”. That is, the entry of which the item “reconnection OK” in the terminal information table is “NG” may be excluded from the “first switching position parameter” used in the “disconnection control execution condition”. This is because the position and direction of the wireless terminal 30 corresponding to the entry of which the item “reconnection OK” is “NG” are the same as those of the access point 50-1 and the wireless terminal 30 because the wireless terminal 30 is no longer in the LAN area. This is because it is considered that the wireless connection is in the position and direction in which the wireless connection is disconnected.

<Operation example of access point>
An example of the processing operation of the access point 50-1 having the above configuration will be described.

<Update process of terminal information table>
FIG. 5 is a flowchart showing an example of the updating process of the terminal information table of the second embodiment. FIG. 6 is a diagram illustrating an example of a communication system according to the second embodiment.

As shown in FIG. 6, the access point 50-1 is arranged on the first floor of the building, and the access point 50-2 is arranged on the second floor. For example, when the user moves to the second floor while holding the wireless terminal 30 while the wireless terminal 30 and the access point 50-1 are wirelessly connected, the user wirelessly connects the wireless terminal 30 and the access point 50-2. Then, the wireless connection between the wireless terminal 30 and the access point 50-1 is disconnected. In this way, when the wireless connection between the wireless terminal 30 and the access point 50-1 is disconnected by the user, the flowchart of FIG. 5 starts.

The table management unit 51C acquires the radio field intensity, the communication rate, and the channel state information from the acquisition unit 51A (step S101).

The existence confirmation control unit 51B monitors the ARP (step S102) and determines whether the IP address included in the ARP is new (step S103).

When the IP address included in the ARP is new (YES in step S103), the presence confirmation control unit 51B transmits a presence confirmation signal including the new IP address (step S104).

If the IP address included in the ARP is not new (NO in step S103), the existence confirmation control unit 51B transmits an existence confirmation signal including the IP address before the wireless connection is disconnected (step S105).

The presence confirmation control unit 51B determines whether or not a response signal including the MAC address of the wireless terminal 30 whose wireless connection has been disconnected has been received (step S106).

When the response signal including the MAC address of the wireless terminal 30 whose wireless connection has been disconnected is not received (step S106 NO), the table management unit 51C records the information of the wireless terminal in the terminal information table as the wireless terminal moved from the LAN. (Step S107). That is, "NG" is input to the item "reconnection OK" of the entry at this time.

When the response signal including the MAC address of the wireless terminal 30 whose wireless connection has been disconnected is received (YES in step S106), the table management unit 51C stores the information of the wireless terminal in the terminal information table as the wireless terminal that continues to exist in the LAN. It is recorded (step S108). That is, "OK" is input to the item "reconnection OK" of the entry at this time. In the example of FIG. 6, “OK” is input to the item “reconnection OK”.

In this way, the terminal information table as shown in FIG. 4 is created.

<Disconnection control processing>
FIG. 7 is a flowchart showing an example of the disconnection control process of the second embodiment. In the flowchart of FIG. 7, when a wireless terminal 30 wirelessly connected to the access point 50-1 appears, the wireless terminal 30 starts as a wireless terminal to be determined. Then, while the wireless terminal 30 to be determined is wirelessly connected to the access point 50-1, the flow of FIG. 7 is repeatedly executed.

The connection control unit 51E determines whether or not the determination target wireless terminal 30 is communicating, that is, whether or not data is transmitted between the access point 50-1 and the wireless terminal 30 (step S201). ).

When the determination target wireless terminal 30 is communicating (YES in step S201), the connection control unit 51E continues the wireless connection between the access point 50-1 and the wireless terminal 30 (step S202).

When the determination target wireless terminal 30 is not communicating (NO in step S201), the connection control unit 51E determines whether or not the entry for the determination target wireless terminal 30 is included in the terminal information table (step S203). .. The entry for the determination target wireless terminal 30 is an entry including the MAC address of the determination target wireless terminal 30.

When the entry for the determination target wireless terminal 30 is not included in the terminal information table (step S203 NO), the connection control unit 51E continues the wireless connection between the access point 50-1 and the wireless terminal 30 (step S202). ..

When the terminal information table includes an entry for the wireless terminal 30 to be determined (YES in step S203), the connection control unit 51E determines whether or not the "disconnection control execution condition" is satisfied (step S204). ..

When the "disconnection control execution condition" is not satisfied (step S204 NO), the connection control unit 51E continues the wireless connection between the access point 50-1 and the wireless terminal 30 (step S202).

When the "disconnection control execution condition" is satisfied (YES in step S204), the connection control unit 51E disconnects the wireless connection between the access point 50-1 and the wireless terminal 30 (step S205).

Here, in the flow of FIG. 7, among the entries of the terminal information table as shown in FIG. 8, it is the entry of the wireless terminal 30 to be determined, and “OK” is input in the item “reconnection OK”. The entry is used. Then, when there are a plurality of such entries as shown in FIG. 8, for example, the maximum value of the radio wave intensity and the maximum value of the communication rate may be used as the “first distance parameter”. That is, in the example shown in FIG. 8, the radio field intensity “28” and the communication rate “4” are used as the “first distance parameter”. Further, as the “first direction” indicated by the “first direction parameter”, for example, an average of a plurality of directions indicated by channel state information of such a plurality of entries (three in FIG. 8) may be used. Good. FIG. 8 is a diagram for explaining an example of the disconnection control according to the second embodiment.

As described above, when the flow of FIGS. 5 and 7 is executed when the wireless connection is disconnected by the user in the situation of FIG. 6, the wireless terminal 30 represents the “phase A” shown in FIG. When the position and the position represented by the "phase A'" are moved, the "cutting control" is executed. On the other hand, when the wireless terminal 30 moves to the position represented by “Phase B”, the position represented by “Phase C”, and the position represented by “Phase D”, the “disconnection control” is not executed. However, when the wireless terminal 30 moves to the position represented by “Phase D”, it is located outside the LAN, and therefore the wireless connection is disconnected regardless of the above disconnection control. FIG. 9 is a diagram for explaining an example of the disconnection control according to the second embodiment.

<Third Embodiment>
The third embodiment relates to disconnection control using an entry in which “NG” is entered in the item “reconnect OK” in the terminal information table described in the second embodiment. Since the basic configuration of the access point of the third embodiment is the same as the basic configuration of the access point 50 of the second embodiment, it will be described with reference to FIG.

The connection control unit 51E of the access point 50-1 of the third embodiment uses the “switching position parameter (hereinafter, may be referred to as “second switching position parameter”)”, “switching time”, and “current position parameter”. It is determined whether to continue or disconnect the wireless connection between the wireless terminal 30 wirelessly connected to the access point 50-1 and the access point 50-1, based on the “current time” and the “current time”. The “second switching position parameter” is the access point 50 when the connection between the wireless terminal 30 and the access point 50-1 has been disconnected by the user in the past and the wireless terminal 30 is not connected to the local area network. -1 is a parameter relating to the relative position of the wireless terminal 30. That is, the “second switching position parameter” corresponds to an entry in which “NG” is input in the item “reconnection OK” among the entries in the terminal state table.

For example, the connection control unit 51E determines to automatically disconnect the wireless connection between the access point 50-1 and the wireless terminal 30 when the “disconnection control execution condition” of the third embodiment is satisfied. The “disconnection control execution condition” of the third embodiment is that both the “third condition” and the “fourth condition” are satisfied. The “third condition” is that the “distance parameter (third distance parameter)” included in the “second switching position parameter” is smaller than the “second distance parameter”. The “fourth condition” is that the current time is included in the time zone including the switching time. That is, in the disconnection control of the third embodiment, the “direction parameter” of the “second switching position parameter” is not used, but the “third distance parameter” is used.

Here, as shown in FIG. 10, when there are a plurality of entries that are entries of the wireless terminal 30 to be determined and in which “NG” is input in the item “reconnection OK”, the “third distance parameter” is set as the “third distance parameter”. For example, the minimum value of the radio wave intensity and the minimum value of the communication rate may be used. That is, in the example shown in FIG. 10, the radio field intensity “10” and the communication rate “2” are used as the “third distance parameter”. Further, as the time zone including the "switching time", "10 o'clock" may be used since 10 o'clock is the most in the example shown in FIG. FIG. 10 is a diagram for explaining an example of the disconnection control according to the third embodiment.

By the way, the behavior pattern of the user (particularly, the outing pattern) can be patterned by the “distance parameter” and the “time”. Therefore, by using the “disconnection control execution condition” of the third embodiment, when it is determined that the user has taken a specific behavior pattern (for example, an outing pattern), the wireless terminal 30 and the access point 50 are automatically. The wireless connection with -1 can be disconnected. Thereby, the power consumption of the wireless terminal 30 can be reduced.

<Other Embodiments>
FIG. 11 is a diagram illustrating a hardware configuration example of the control device. In FIG. 11, the control device 100 has a processor 101 and a memory 102. The processor 101 includes the connection control units 12A and 51E of the control units (control devices) 12 and 51, the acquisition unit 51A, the existence confirmation control unit 51B, and the table management unit 51C according to the first to third embodiments. It may be realized by reading and executing the program stored in the memory 102. The program can be stored using various types of non-transitory computer readable media and can be supplied to the control units (control devices) 12 and 51. In addition, the program may be supplied to the control unit (control device) 12, 51 by various types of transitory computer readable media.

Although the present invention has been described with reference to the exemplary embodiments, the present invention is not limited to the above. Various modifications that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the invention.

1 communication system 10,50 access point 11 wireless communication unit 12,51 control unit (control device)
12A, 51E Connection control unit 30 Wireless terminal 51A Acquisition unit 51B Presence confirmation control unit 51C Table management unit 51D Storage unit 52 LAN communication unit

Claims (10)

A second connection in which the wireless terminal and the first access point are disconnected by the user in the past, and the access point to which the wireless terminal is connected is located in the same local area network from the first access point to the first access point. A first switching position parameter relating to a relative position between the first access point and the wireless terminal when switched to an access point, and a current position parameter relating to a current position of the wireless terminal connected to the first access point. A control device comprising a connection control unit that determines whether to continue or disconnect the connection between the wireless terminal and the first access point based on the above. The first switching position parameter and the current position parameter respectively relate to a direction parameter regarding a direction in which the wireless terminal is located with respect to the first access point and a separation distance between the first access point and the wireless terminal. Including the distance parameter,
The control device according to claim 1. The connection control unit determines to disconnect the connection when a disconnection control execution condition is satisfied,
In the cutting control execution condition, an angle value formed by a first direction indicated by a first direction parameter included in the first switching position parameter and a second direction indicated by a second direction parameter included in the current position parameter is a first value. A condition that the first distance included in the range and indicated by the first distance parameter included in the first switching position parameter is equal to or less than the second distance indicated by the second distance parameter included in the current position parameter;
The control device according to claim 2. The directional parameters include channel state parameters,
The distance parameter includes one or both of a received signal strength and a communication rate,
The control device according to claim 2 or 3. Further comprising an acquisition unit that acquires the first switching position parameter when the connection between the wireless terminal and the first access point is disconnected by the user.
The control device according to any one of claims 1 to 4. Control for transmitting a presence confirmation signal for confirming whether or not the wireless terminal exists in the local area network when the connection between the wireless terminal and the first access point is disconnected by the user. Further comprising a presence confirmation control unit for executing
The control device according to any one of claims 1 to 5. The connection control unit is configured to perform the first access when the connection between the wireless terminal and the first access point is disconnected by the user in the past and the wireless terminal is not connected to the local area network. The connection between the wireless terminal and the first access point is continued or disconnected based on the second switching position parameter and the disconnection time regarding the relative position between the point and the wireless terminal, and the current position parameter and the current time. Decide whether to
The control device according to any one of claims 1 to 6. An access point comprising the control device according to claim 1. A second connection in which the wireless terminal and the first access point are disconnected by the user in the past, and the access point to which the wireless terminal is connected is located in the same local area network from the first access point to the first access point. Based on a switching position parameter related to a relative position between the first access point and the wireless terminal when switched to an access point, and a current position parameter related to a current position of the wireless terminal connected to the first access point. Determine whether to continue or disconnect the connection between the wireless terminal and the first access point,
Connection control method. A second connection in which the wireless terminal and the first access point are disconnected by the user in the past, and the access point to which the wireless terminal is connected is located in the same local area network from the first access point to the first access point. Based on a switching position parameter related to a relative position between the first access point and the wireless terminal when switched to an access point, and a current position parameter related to a current position of the wireless terminal connected to the first access point. Determine whether to continue or disconnect the connection between the wireless terminal and the first access point,
A control program that causes the first access point to execute a process.

Images