JP6282605B2 - Connection setting method, server, and program - Google Patents

Description

  The present invention relates to a network connection setting method, a server, and a program in a communication system including one or more slave units and a plurality of master units, and particularly, when the resources of the master unit are limited. The present invention also relates to a connection setting method, a server, and a program that can establish a connection between a child device and a parent device.

  Conventionally, in a communication system in which a slave unit and a master unit communicate with each other, a connection ID (for example, SSID or PAN-ID) of the slave unit is used to establish a connection between the slave unit and the master unit. is there. For example, Patent Literature 1 discloses a method in which a parent device acquires position information of a child device and information around the child device is acquired in advance. By using this method, it is possible for the parent device to grasp in advance the connection ID of the child device existing in the vicinity of the own device.

Japanese Patent Laid-Open No. 10-21259

  However, since the conventional method needs to set information of a plurality of slave units on the master unit side, when the resources of the master unit are limited, a connection cannot always be established between the slave unit and the master unit. .

  An object of the present invention made in view of such circumstances is to provide a connection setting method, server, and program capable of establishing a connection between a child device and the parent device even when the resources of the parent device are limited. It is to provide.

  In order to solve the above problems, a connection setting method according to the present invention includes one or more slave units, a plurality of master units capable of accommodating the one or more slave units, and provided in each area. A network connection setting method in a communication system comprising a plurality of representative servers capable of communicating with the installed master device, wherein the one or more slave devices each have their own slave device ID and connection ID. A step of storing, a step of storing each of the plurality of representative servers in a handset information database in which the handset ID of the one or more handset, the connection ID, and the search order are associated with each other; The child device includes a step of outputting a first signal including the child device ID of the device itself, and the parent device that has received the output first signal includes the child included in the first signal. Machine ID and reception of the first signal Transmitting the second signal including the wave intensity to the representative server corresponding to the area where the device is installed, and the representative server receiving the second signal uses the second signal as the second signal. Searching the slave unit information database in order from the slave unit ID having the highest search order using the slave unit ID included as a query, and according to the received radio wave intensity included in the second signal, Updating the slave unit information database by changing the search order corresponding to the slave unit ID included in the second signal; and the connection ID corresponding to the slave unit ID included in the second signal. Are extracted from the slave unit information database and transmitted to the master unit, the master unit transmits the connection ID received from the representative server to the slave unit, and the slave unit is If said connection ID received from the parent device, and the connection ID when the device itself stores, matches, characterized in that it comprises the steps of: establishing a connection with the master unit.

  The server according to the present invention includes one or more slave units, a plurality of master units capable of accommodating the one or more slave units, and the master unit provided in each area and installed in the area. A server functioning as the representative server of a communication system comprising a plurality of communicable representative servers, each of which associates a slave unit ID, a connection ID, and a search order of the plurality of slave units. A storage unit for storing a machine information database; and the slave unit ID included in the first signal from the master unit receiving the first signal including the slave unit ID of the slave unit output by the slave unit A second signal including the received signal strength of the first signal, and using the child device ID included in the second signal as a query, the child device ID having the highest search order is ordered. The slave device information database is searched for and the second signal is In response to the received radio wave strength, the search order corresponding to the child device ID included in the second signal is changed to update the child device information database, and the second signal is included in the second signal. And a control unit that extracts the connection ID corresponding to the child device ID from the child device information database and transmits the extracted connection ID to the parent device.

  Further, the program according to the present invention includes one or more slave units, a plurality of master units capable of accommodating the one or more slave units, and the master unit provided in each area and installed in the area. Slave unit information in which a slave unit ID, a connection ID, and a search order of each of the slave units are associated with a server functioning as the representative server of a communication system including a plurality of representative servers capable of communication A step of storing a database in a storage unit; and the slave unit ID included in the first signal from the master unit that has received the first signal including the slave unit ID of the own device output by the slave unit; , Receiving a second signal including the received radio wave intensity of the first signal, and using the slave unit ID included in the second signal as a query, from the slave unit ID having the highest search order Search the handset information database in order. And updating the slave unit information database by changing the search order corresponding to the slave unit ID included in the second signal according to the received radio wave intensity included in the second signal. And extracting the connection ID corresponding to the child device ID included in the second signal from the child device information database and transmitting it to the parent device.

  According to the connection setting method, server, and program according to the present invention, a connection can be established between a slave unit and a master unit even when resources of the master unit are limited.

It is a figure which shows schematic structure of the communication system which concerns on one Embodiment of this invention. It is a block diagram which shows schematic structure of the subunit | mobile_unit of FIG. It is a block diagram which shows schematic structure of the main | base station of FIG. It is a figure which shows the example of accommodation subunit | mobile_unit DB of FIG. It is a block diagram which shows schematic structure of the representative server of FIG. It is a figure which shows the example of the main | base station information DB of FIG. It is a figure which shows the example of the subunit | mobile_unit information DB of FIG. It is a block diagram which shows schematic structure of the integrated server of FIG. It is a figure which shows the example of representative server DB of FIG. It is a figure which shows the example of the subunit | mobile_unit list | wrist of FIG. It is a flowchart figure explaining the process which the communication system of FIG. 1 performs. It is a flowchart figure explaining the process which the communication system of FIG. 1 performs. It is a flowchart figure explaining the process which the communication system of FIG. 1 performs. It is a flowchart figure explaining the process which the communication system of FIG. 1 performs.

  Hereinafter, embodiments of the present invention will be described.

  First, an outline of a communication system including a server according to an embodiment of the present invention will be described. As shown in FIG. 1, the communication system 10 includes a slave unit 11, a plurality of master units 12, a plurality of representative servers 13, and an integrated server 14. In FIG. 1, for convenience, only one slave unit 11 is illustrated, but the communication system 10 may include two or more slave units 11.

  The subunit | mobile_unit 11 is mobile terminal apparatuses, such as a vital sensor or a vehicle-mounted sensor, for example. A user of the slave unit 11 is required to subscribe to a service using the slave unit 11 such as a health management service using a vital sensor as the slave unit 11 or a vehicle state monitoring service using a vehicle-mounted sensor as the slave unit 11. Information related to the service, for example, a slave ID such as a MAC address and a connection ID such as SSID or PAN-ID are communicated to the service provider.

  The base unit 12 is a base station device capable of transmitting and receiving information to and from the handset 11 by wireless communication, for example, and accommodates the handset 11 existing in the vicinity. In addition, the base unit 12 can communicate with the representative server 13 via an IP network 15 such as the Internet.

  The representative server 13 is provided corresponding to any one geographical area, and can communicate with the parent device 12 installed in the area. For example, the representative server 13a illustrated in FIG. 1 can communicate with the parent device 12a installed in the area A. In addition, the representative server 13b can communicate with the parent device 12b installed in the area B.

  The integrated server 14 can communicate with all the representative servers 13 included in the communication system 10 via the IP network 15. The integrated server 14 registers (stores) information related to all the slave units 11 included in the communication system 10, such as a slave unit ID and a connection ID, according to the input of the service provider.

  Next, each component of the communication system 10 will be described. As shown in FIG. 2, the child device 11 includes a child device communication unit 16, a child device storage unit 17, and a child device control unit 18.

  The subunit | mobile_unit communication part 16 is an interface which transmits / receives information by radio | wireless communication. In this embodiment, the subunit | mobile_unit communication part 16 transmits / receives information between the main | base stations 12 by radio | wireless communication.

  The subunit | mobile_unit memory | storage part 17 is memory, for example, Comprising: A program required for operation | movement of the subunit | mobile_unit 11 and various information are memorize | stored. For example, the handset storage unit 17 stores the handset ID and connection ID of the handset 11.

  The subunit | mobile_unit control part 18 is a general purpose CPU which performs a specific process, for example by reading a specific microprocessor or a specific program. The handset controller 18 controls the entire operation of the handset 11.

  For example, when the slave unit control unit 18 has not established a connection with any of the master units 12 or when the received radio wave intensity of the signal received from the master unit 12 to be connected is equal to or lower than a predetermined threshold, In order to search for the parent device 12 of the connection destination, a first signal including the child device ID of the child device 11 is output. Moreover, the subunit | mobile_unit control part 18 outputs a 1st signal, when the connection with one of the main | base stations 12 is established. The output of the first signal may be, for example, that the slave unit control unit 18 actively reports (broadcasts), and responds to reception of the beacon signal notified by the master unit 12 to the master unit 12. It may be to transmit.

  In addition, when receiving the connection ID from the parent device 12, the child device control unit 18 determines whether or not the received connection ID matches the connection ID stored in the child device storage unit 17. If the connection IDs match, the handset controller 18 performs, for example, a general authentication process with the base unit 12 to establish a wireless communication connection. When receiving a connection ID from a plurality of parent devices 12, the child device control unit 18 tries to connect with priority given to, for example, the parent device 12 having a high received radio wave intensity of a signal transmitted from the parent device 12. When the wireless communication connection is established, the user of the slave unit 11 can receive the service to be subscribed to.

  As shown in FIG. 3, base unit 12 includes base unit communication unit 19, base unit storage unit 20, and base unit control unit 21.

  The base unit communication unit 19 is an interface that transmits and receives information through wireless communication and through the IP network 15. In the present embodiment, the base unit communication unit 19 transmits / receives information to / from the slave unit 11 by wireless communication, and transmits / receives information to / from the representative server 13 via the IP network 15.

  The base unit storage unit 20 is a memory, for example, and stores programs and various information necessary for the operation of the base unit 12. For example, the parent device storage unit 20 includes a parent device ID (for example, MAC address) of the parent device 12 and a representative server address (for example, IP address) of the representative server 13 corresponding to the area (installation area) in which the parent device 12 is installed. Address). In addition, the parent device storage unit 20 stores an accommodation child device database (DB) 22.

  The accommodation child device DB 22 includes information regarding the child device 11 that has established a connection with the parent device 12. For example, as shown in FIG. 4, the accommodation child device DB 22 includes a connection date and time in association with the child device ID and connection ID of the child device 11 that has established a connection with the parent device 12. The connection date / time indicates the latest date / time when the connection with the corresponding slave unit 11 is established.

  3 is a general-purpose CPU that executes specific processing by reading a dedicated microprocessor or a specific program, for example. The base unit control unit 21 controls the entire operation of the base unit 12. For example, the base unit control unit 21 periodically notifies a beacon signal including the base unit ID of the base unit 12 and the like.

  Further, the parent device control unit 21 receives the first signal from the child device 11 that has not established a connection with any parent device 12. Base unit control unit 21 measures the received radio wave intensity (received electric field intensity) of the first signal. The parent device control unit 21 outputs a second signal, which includes the child device ID included in the first signal, the received radio wave intensity of the first signal, and the parent device ID of the parent device 12, to the parent device 12. To the representative server 13 corresponding to the installation area. When receiving the connection ID from the representative server 13 in response to the transmission of the second signal, the parent device control unit 21 transmits the received connection ID to the child device 11. Further, the parent device control unit 21 performs, for example, a general authentication process with the child device 11 to establish a wireless communication connection.

  In addition, the parent device control unit 21 receives the first signal from the child device 11 that has established a connection with any of the parent devices 12. The base unit control unit 21 measures the received radio wave intensity of the first signal, and transmits the second signal to the representative server 13 corresponding to the installation area of the base unit 12.

  As illustrated in FIG. 5, the representative server 13 includes a representative server communication unit 23, a representative server storage unit 24, and a representative server control unit 25.

  The representative server communication unit 23 is an interface that transmits and receives information via the IP network 15. In the present embodiment, the representative server communication unit 23 transmits and receives information to and from the parent device 12 or the integrated server 14 via the IP network 15.

  The representative server storage unit 24 is, for example, a memory, and stores programs and various information necessary for the operation of the representative server 13. For example, the representative server storage unit 24 includes a representative server address and a representative server ID (for example, a MAC address) of the representative server 13, an integrated server address (for example, an IP address) of the integrated server 14, and an area corresponding to the representative server 13. Is stored. The representative server storage unit 24 stores a parent device information database (DB) 26 and a child device information database (DB) 27.

  The parent device information DB 26 includes information related to the parent device 12 installed in the area corresponding to the representative server 13. For example, as shown in FIG. 6, the parent device information DB 26 includes an address in association with the parent device ID and the parent device address (for example, IP address) of the parent device 12 installed in the area. The address is an address or position information (for example, latitude and longitude) where the corresponding parent device 12 is installed.

  The subunit | mobile_unit information DB27 contains the information regarding all the subunit | mobile_units 11 with which the communication system 10 is provided. For example, as shown in FIG. 7, the handset information DB 27 associates the handset IDs and connection IDs of all handset 11 included in the communication system 10 with search ranks, scores, and received signal strength information. Including.

  The search order is information that defines the search order when the representative server control unit 25 searches the handset information DB 27 using the handset ID as a query. Specifically, the handset information DB 27 is searched in order from the handset ID having the highest search order. In this way, the time required for the child device ID having the higher search order to be specified by the search of the child device information DB 27 is shortened. The search order is determined according to the score. Specifically, the higher the score, the higher the search order, that is, the faster the search order.

  The score is a parameter used to determine the search order. The score is determined based on the received radio wave intensity measured by the master unit 12 installed in the area corresponding to the representative server 13 of the first signal output by the corresponding slave unit 11. Specifically, the higher the received radio wave intensity measured by the parent device 12, the higher the score. In the present embodiment, the score is a total value of the received radio wave intensity measured by the parent device 12 installed in the area, and the initial value of the score is zero. The initial value of the score may be set to an arbitrary value.

  The received radio wave intensity information is information indicating the received radio wave intensity of the first signal output by the corresponding slave unit 11 and measured by the master unit 12 installed in the area corresponding to the representative server 13. Specifically, the received radio wave intensity information includes a parent machine ID and a measured received radio wave intensity for each parent machine 12 installed in the area. In the present embodiment, as described above, the sum of the received radio wave strengths included in the received radio wave strength information is determined as the score.

  The representative server control unit 25 illustrated in FIG. 5 is, for example, a general-purpose CPU that executes a specific process by reading a dedicated microprocessor or a specific program. The representative server control unit 25 controls the entire operation of the representative server 13.

  For example, when receiving the slave unit ID and the connection ID from the integrated server 14, the representative server control unit 25 registers (adds) the slave unit ID and the connection ID in the slave unit information DB 27. Here, as an initial state, the score corresponding to the child machine ID is set to zero, and the search order is set to the lowest.

  The representative server control unit 25 receives the second signal from the parent device 12 that has received the first signal from the child device 11 that has not established a connection with any of the parent devices 12. The representative server control unit 25 searches the slave unit information DB 27 using the slave unit ID included in the second signal as a query in the search order based on the score, that is, in order from the slave unit ID having the highest search order. The representative server control unit 25 includes the received signal strength (for example, 0) corresponding to the parent device ID of the parent device 12 in the received signal strength information corresponding to the child device ID specified by the search in the second signal. To be equal to the received radio wave intensity (for example, 100). In addition, the representative server control unit 25 changes the score corresponding to the specified child device ID (for example, increases by 100), and updates the child device information DB 27. Then, the representative server control unit 25 extracts the connection ID corresponding to the identified child device ID from the child device information DB 27 and transmits it to the parent device 12. The update order of the above-described slave unit information DB 27 and the connection ID transmission process may be executed in reverse order.

  Further, the representative server control unit 25 receives the second signal from the parent device 12 that has received the first signal from the child device 11 that has established a connection with any of the parent devices 12. The representative server control unit 25 searches the slave unit information DB 27 using the slave unit ID included in the second signal as a query in the search order based on the score, that is, in order from the slave unit ID having the highest search order. The representative server control unit 25 uses the received radio wave intensity corresponding to the parent machine ID of the parent machine 12 included in the received radio wave intensity information corresponding to the child machine ID specified by the search as the received radio wave included in the second signal. Vary to be equal to strength. In addition, the representative server control unit 25 updates the child device information DB 27 by changing the score corresponding to the specified child device ID. Then, the representative server control unit 25 transmits an update completion notification of the child device information DB 27 to the parent device 12.

  In addition, when the slave server information DB 27 is updated, the representative server control unit 25 transmits the representative server ID of the representative server 13 and the slave device ID corresponding to the updated score to the integrated server 14.

  Further, when the representative server control unit 25 receives the third signal including the child device ID from the integrated server 14, the score corresponding to the child device ID in the child device information DB 27 is an initial value (for example, zero). It is determined whether or not. When the score is zero, the representative server control unit 25 varies the search order corresponding to the child device ID included in the third signal among all the child device IDs having a score of zero, The handset information DB 27 is updated. On the other hand, if the score is not zero, the representative server control unit 25 does not update the child device information DB 27 described above. That is, the representative server control unit 25 ends this processing without changing the search order corresponding to the child device ID included in the third signal.

  As illustrated in FIG. 8, the integrated server 14 includes an integrated server communication unit 28, an integrated server storage unit 29, and an integrated server control unit 30.

  The integrated server communication unit 28 is an interface that transmits and receives information via the IP network 15. In the present embodiment, the integrated server communication unit 28 transmits and receives information to and from the representative server 13 via the IP network 15.

  The integrated server storage unit 29 is, for example, a memory, and stores programs and various information necessary for the operation of the integrated server 14. For example, the integrated server storage unit 29 stores the integrated server address of the integrated server 14. The integrated server storage unit 29 stores a representative server database (DB) 31 and a slave unit list 32.

  The representative server DB 31 includes information regarding all the representative servers 13 included in the communication system 10. For example, as shown in FIG. 9, the representative server DB 31 includes an area and a parent device list in association with the representative server ID and the representative server address.

  The area is information indicating an area corresponding to the representative server 13.

  The parent device list includes the parent device ID of the parent device 12 installed in the corresponding area.

  The subunit | mobile_unit list | wrist 32 contains the information regarding all the subunit | mobile_units 11 with which the communication system 10 is provided. For example, as shown in FIG. 10, the slave unit list 32 includes a slave unit ID and a connection ID in association with each other.

  The integrated server control unit 30 shown in FIG. 8 is a general-purpose CPU that executes a specific process by reading a dedicated microprocessor or a specific program, for example. The integrated server control unit 30 controls the overall operation of the integrated server 14.

  For example, the integrated server control unit 30 registers (adds) the handset ID and connection ID input by the service provider in the handset list 32. Further, the integrated server control unit 30 transmits the slave unit ID and the connection ID registered in the slave unit list 32 to all the representative servers 13 included in the communication system 10.

  Also, the integrated server control unit 30 starts from the representative server 13 that has updated the child device information DB 27 stored in the representative server storage unit 24, and the representative server ID of the representative server 13 and the child device ID corresponding to the updated score. , Receive. The integrated server control unit 30 searches the representative server DB 31 using the received representative server ID as a query. The integrated server control unit 30 refers to the area corresponding to the representative server ID specified by the search, and specifies another area located in the vicinity of the area (for example, adjacent to the area). For example, the integrated server control unit 30 stores information indicating the positional relationship of the areas in the integrated server storage unit 29 in advance, and specifies another area by collating with the information. And the integrated server control part 30 transmits the said subunit | mobile_unit ID to the other representative server 13 corresponding to the specified other area.

  Next, processing for newly registering an arbitrary slave unit 11 in the communication system 10 will be described with reference to the flowchart of FIG. This process is started, for example, after the service provider inputs the handset ID and connection ID notified from the user of the handset 11 to the integrated server 14.

  Step S100: First, the integration server 14 registers, for example, the slave unit ID and the connection ID input by the service provider in the slave unit list 32.

  Step S101: Subsequently, the integrated server 14 transmits the slave device ID and the connection ID registered in the slave device list 32 to all the representative servers 13 included in the communication system 10.

  Step S102: Upon receiving the slave unit ID and the connection ID from the integrated server 14, the representative server 13 registers the slave unit ID and connection ID in the slave unit information DB 27. At the time of registration, that is, in the initial state, the score corresponding to the child device ID and connection ID in the child device information DB 27 is set to zero, and the search order is set to the lowest.

  Next, processing for establishing a wireless communication connection between the parent device 12 and the child device 11 that has not established a connection with any of the parent devices 12 will be described with reference to the flowchart of FIG.

  Step S200: First, the slave unit 11 outputs (for example, reports) a first signal including the slave unit ID of the slave unit 11. Here, it is assumed that the slave unit 11 has not established a connection with any master unit 12.

  Step S201: Next, when receiving the first signal from the child device 11, the parent device 12 receives the child device ID included in the first signal, the received radio wave intensity of the first signal, and the parent of the parent device 12. A second signal including the machine ID is transmitted to the representative server 13 corresponding to the installation area of the parent machine 12.

  Step S202: Next, when the representative server 13 receives the second signal from the master unit 12, the slave server ID included in the second signal is used as a query, and the search order based on the score, that is, the search order is higher. The handset information DB 27 is searched in order from the handset ID.

  Step S203: Subsequently, the representative server 13 receives, in the second signal, the received radio wave intensity information corresponding to the parent machine ID of the parent machine 12 in the received radio wave intensity information corresponding to the child machine ID specified by the search. Fluctuate to be equal to the radio wave intensity. In addition, the representative server 13 updates the child device information DB 27 by changing the score corresponding to the specified child device ID.

  Step S204: Subsequently, the representative server 13 extracts the connection ID corresponding to the identified child device ID from the child device information DB 27 and transmits the connection ID to the parent device 12.

  Step S205: Next, when receiving the connection ID from the representative server 13, the parent device 12 transmits the received connection ID to the child device 11.

  Step S206: Next, when receiving the connection ID from the parent device 12, the child device 11 determines whether or not the received connection ID matches the connection ID stored in the child device storage unit 17. If the connection IDs match (step S206—Yes), the process proceeds to step S207. On the other hand, if the connection IDs do not match (step S206—No), the process returns to step S200.

  Step S207: When the connection IDs match in step S206 (step S206—Yes), the slave unit 11 and the master unit 12 perform, for example, a general authentication process to establish a wireless communication connection.

  Next, a process in which the representative server 13 updates the slave unit information DB 27 for the slave unit 11 that has established a connection with any of the master units 12 will be described with reference to the flowchart of FIG.

  Step S300: First, the slave unit 11 outputs (for example, informs) a first signal including the slave unit ID of the slave unit 11. Here, it is assumed that the slave unit 11 has established a connection with any one of the master units 12.

  Step S301: Next, when receiving the first signal from the child device 11, the parent device 12 receives the child device ID included in the first signal, the received radio wave intensity of the first signal, and the parent of the parent device 12. A second signal including the machine ID is transmitted to the representative server 13 corresponding to the installation area of the parent machine 12.

  Step S302: Next, when the representative server 13 receives the second signal from the master unit 12, the slave server ID included in the second signal is used as a query, and the search order based on the scores, that is, the search order is higher. The handset information DB 27 is searched in order from the handset ID.

  Step S303: Subsequently, the representative server 13 receives the received radio wave intensity information corresponding to the parent machine ID of the parent machine 12 that transmitted the second signal in step S301 of the received radio wave intensity information corresponding to the child machine ID specified by the search. Is changed to be equal to the received radio wave intensity included in the second signal. In addition, the representative server 13 updates the child device information DB 27 by changing the score corresponding to the specified child device ID.

  Step S304: The representative server 13 transmits an update completion notification of the child device information DB 27 to the parent device 12.

  Next, with reference to the flowchart of FIG. 14, processing for updating the slave unit information DB 27 of another representative server 13 different from the representative server 13 that updated the slave unit information DB 27 will be described. This process is executed, for example, after the representative server 13 updates the handset information DB 27 in the process shown in FIG.

  Step S400: First, when the representative server 13 updates the slave unit information DB 27, the representative server 13 transmits the representative server ID of the representative server 13 and the slave unit ID corresponding to the updated score to the integrated server 14.

  Step S401: Next, upon receiving the representative server ID and the slave unit ID from the representative server 13, the integrated server 14 searches the representative server DB 31 using the received representative server ID as a query.

  Step S402: Subsequently, the integrated server 14 refers to the area corresponding to the representative server ID identified by the search, and identifies another area located in the vicinity of the area (for example, adjacent to the area). The integrated server 14 transmits a third signal including the child device ID received in step S401 to the other representative server 13 corresponding to the other area.

  Step S403: Next, when the other representative server 13 receives the third signal from the integration server 14, the score corresponding to the child device ID included in the third signal in the child device information DB 27 is the initial value. It is determined whether or not (for example, zero). When the score is zero (step S403-Yes), the process proceeds to step S404. On the other hand, if the score is not zero, this process is terminated.

  Step S404: When the score is zero in step S403 (step S403-Yes), the other representative server 13 searches for the slave unit ID received in step S403 among the slave unit IDs having a score of zero. Is updated to the highest level, and the handset information DB 27 is updated.

  As described above, in the communication system 10 according to the present embodiment, the representative server 13 uses the slave unit ID included in the second signal received from the base unit 12 as a query to set the received signal strength of the first signal. The slave unit information DB 27 is searched in order from the slave unit ID having the higher search order according to the search order, and the slave unit ID and the corresponding connection ID determined in the query are specified. The master unit 12 receives the connection ID from the representative server 13 and establishes a connection with the slave unit 11 using the received connection ID. For this reason, it is not necessary to store the connection ID necessary for establishing the connection between the child device 11 and the parent device 12 in the parent device 12, and even when the resources of the parent device 12 are limited. The subunit | mobile_unit 11 can be accommodated. In addition, since the search order varies depending on the received radio wave intensity of the first signal, when the representative server 13 searches the slave unit information DB 27, for example, the distance from the master unit 12 in the area is relatively small. A long handset 11, that is, a handset ID whose score is less than a predetermined value can be excluded from search targets. For this reason, the time required for specifying the child device ID specified in the query by searching the child device information DB 27 is reduced, and the time required for establishing the connection between the child device 11 and the parent device 12 is reduced. Is done.

  Specifically, the higher the received radio wave strength, the higher the search order of the handset device information DB 27 is changed. In this way, the time required to specify the child device ID of the child device 11 having a shorter distance from the parent device 12 by searching the child device information DB 27 is shortened. The time required to establish a connection between them is reduced.

  When the representative server 13 updates the handset information DB 27, the handset ID corresponding to the changed search order is transmitted to the integrated server 14, and the integrated server 14 sends the handset ID to the other representative server 13. A third signal including is transmitted. Then, the other representative server 13 among all the child device IDs associated with a score equal to the score corresponding to the child device ID included in the third signal in the child device information DB 27 stored in the own device. The search order corresponding to the handset ID included in the third signal is set to the top. In this manner, since the search order of the slave unit ID included in the third signal in the slave unit information DB 27 stored in the other representative server 13 is changed so as to be higher, for example, it corresponds to the representative server 13. The slave unit 11 that has established a connection with the master unit 12 in the area (eg, area A) moves to another area (eg, area B adjacent to the area A) corresponding to the other representative server 13 Then, when trying to connect to the master unit 12 installed in the area B, the time required for specifying by searching the slave unit information DB 27 is shortened, and the connection between the slave unit 11 and the master unit 12 is established. The time required to do this is shortened.

  Although the present invention has been described based on the drawings and examples, it should be noted that those skilled in the art can easily make various modifications and corrections based on the present disclosure. Therefore, it should be noted that these variations and modifications are included in the scope of the present invention. For example, the functions included in each component, each step, etc. can be rearranged so that there is no logical contradiction, and multiple components, steps, etc. can be combined or divided into one It is.

DESCRIPTION OF SYMBOLS 10 Communication system 11 Child machine 12, 12a, 12b Parent machine 13, 13a, 13b Representative server 14 Integrated server 15 IP network 16 Child machine communication part 17 Child machine memory | storage part 18 Child machine control part 19 Parent machine communication part 20 Parent machine memory | storage Unit 21 Base unit control unit 23 Representative server communication unit 24 Representative server storage unit 25 Representative server control unit 28 Integrated server communication unit 29 Integrated server storage unit 30 Integrated server control unit 32 Child device list

Claims (7)

One or more slave units, a plurality of master units capable of accommodating the one or more slave units, a plurality of representative servers provided for each area and capable of communicating with the master unit installed in the area; A network connection setting method in a communication system comprising:
The one or more slave devices each storing a slave device ID and a connection ID of the device;
The plurality of representative servers each storing a handset information database in which the handset ID, the connection ID, and the search order of the one or more handset are associated with each other;
The child device outputs a first signal including the child device ID of the device;
The master unit that has received the output first signal receives a second signal including the slave unit ID included in the first signal and the received radio wave intensity of the first signal. Transmitting to the representative server corresponding to the area where the device is installed;
The representative server that has received the second signal,
Searching the handset information database in order from the handset ID having a higher search order, using the handset ID included in the second signal as a query;
Updating the slave unit information database by changing the search order corresponding to the slave unit ID included in the second signal according to the received radio wave intensity included in the second signal;
Extracting the connection ID corresponding to the child device ID included in the second signal from the child device information database and transmitting it to the parent device;
The master unit transmitting the connection ID received from the representative server to the slave unit;
When the slave unit matches the connection ID received from the master unit and the connection ID stored in the own device, establishing a connection with the master unit;
Connection setting method including The connection setting method according to claim 1,
In the step of updating the handset information database, the connection setting method is such that the higher the received radio wave intensity is, the higher the search order is. The connection setting method according to claim 1 or 2,
The communication system further includes an integrated server capable of communicating with the plurality of representative servers,
The slave unit information database includes the slave unit IDs of the plurality of slave units, the connection ID, a search order, and a score in association with each other,
In the step in which the representative server updates the slave device information database, the representative server responds to the received radio wave intensity included in the second signal received from each of the master devices installed in the area corresponding to the own device. Determining the score corresponding to the child device ID included in the second signal, updating the child device information database by changing the search order corresponding to the child device ID based on the score,
When the representative server updates the slave unit information database, the slave server ID corresponding to the changed search order is transmitted to the integrated server;
The integrated server transmitting a third signal including the slave unit ID received from the representative server to another representative server;
All the slave units in which the other representative server is associated with the score equal to the score corresponding to the slave unit ID included in the third signal in the slave unit information database stored in the own device A step of setting a search order corresponding to the slave unit ID included in the third signal among the IDs to the top;
A connection setting method, further comprising: One or more slave units, a plurality of master units capable of accommodating the one or more slave units, a plurality of representative servers provided for each area and capable of communicating with the master unit installed in the area; A server functioning as the representative server of a communication system comprising:
A storage unit for storing a handset information database in which handset IDs, connection IDs, and search orders of the plurality of handset are associated with each other;
The slave unit ID included in the first signal and the received radio wave of the first signal from the master unit that has received the first signal including the slave unit ID of the slave unit output by the slave unit. A second signal including the strength, and using the child device ID included in the second signal as a query, the child device information database is searched in order from the child device ID having a higher search order; According to the received radio wave intensity included in the second signal, the search order corresponding to the slave unit ID included in the second signal is changed to update the slave unit information database, and the second A control unit that extracts the connection ID corresponding to the slave unit ID included in the signal of the slave unit from the slave unit information database and transmits the extracted connection ID to the master unit;
Comprising a server. The server according to claim 4, wherein
The said control part is a server which fluctuates | varies so that the said search order may become a high rank, so that the said received signal strength is large. The server according to claim 4 or 5, wherein
The communication system further includes an integrated server capable of communicating with the plurality of representative servers,
The slave unit information database includes the slave unit IDs of the plurality of slave units, the connection ID, a search order, and a score in association with each other,
The controller is
The score corresponding to the child device ID included in the second signal is determined according to the received radio wave intensity included in the second signal received from each of the parent devices installed in the area corresponding to the own device. And updating the handset information database by changing the search order corresponding to the handset ID based on the score,
When the third signal including the child device ID is received from the integrated server, the score equal to the score corresponding to the child device ID included in the third signal in the child device information database stored in the own device A server that sets a search order corresponding to the child device ID included in the third signal to the highest among all the child device IDs that are associated with each other. One or more slave units, a plurality of master units capable of accommodating the one or more slave units, a plurality of representative servers provided for each area and capable of communicating with the master unit installed in the area; A server functioning as the representative server of a communication system comprising:
Storing a handset information database in which a handset ID, a connection ID, and a search order of the plurality of handset are associated with each other in a storage unit;
The slave unit ID included in the first signal and the received radio wave intensity of the first signal from the master unit that has received the first signal including the slave unit ID of the own device output by the slave unit. Receiving a second signal comprising:
Searching the handset information database in order from the handset ID having a higher search order, using the handset ID included in the second signal as a query;
Updating the slave unit information database by changing the search order corresponding to the slave unit ID included in the second signal according to the received radio wave intensity included in the second signal;
Extracting the connection ID corresponding to the child device ID included in the second signal from the child device information database and transmitting it to the parent device;
A program that executes

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