JP2011004013A - Radio communication relay device, radio terminal, radio communication system, radio communication relay method, radio communication method, radio communication relay program, and radio communication program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To relay communication of a radio terminal under control and to transmit instructions to the radio terminal under control.SOLUTION: An access point 110 acquires prescribed information by an information acquisition section 202 and performs mutual authentication with a radio terminal by an authentication section 204. On the basis of prescribed information, a generation section 211 generates an instruction to the radio terminal mutually authenticated. The instruction may be set by a setting section 223 in advance. The instruction is transmitted to the radio terminal by an instruction transmission section 221. Moreover, a completion notification that processing in response to the instruction is completed is received by a completion notification receiving section 222 from the radio terminal which has transmitted the instruction and the completion notification is managed by a management section 212.

Description

  The present invention relates to a wireless communication relay device, a wireless terminal, a wireless communication system, a wireless communication relay method, a wireless communication method, a wireless communication relay program, and a wireless communication program that perform wireless communication.

  2. Description of the Related Art Conventionally, as a wireless communication system, a wireless LAN that is a LAN system that transmits and receives data using wireless communication is known. In a wireless LAN, an access point connects wireless LAN clients (wireless terminals) such as laptop computers to each other or to other networks (Internet, wired LAN, etc.).

  There is also an earthquake early warning receiver that receives an earthquake early warning distributed by the Japan Meteorological Agency when an earthquake occurs. Among such earthquake early warning receivers, there has been proposed an emergency earthquake early warning receiver that can instruct optimal evacuation behavior according to the location where the earthquake early warning receiver is installed, the age group and gender of the user. (For example, see Patent Document 1 below.) This emergency earthquake bulletin receiver is connected to a wireless terminal in a wireless LAN system, and can receive the earthquake early warning distributed from the Japan Meteorological Agency via the Internet by wireless communication. Similarly, not only the earthquake early warning but also information distributed from the national instantaneous warning system (J-ALERT) can be received by wireless communication.

JP 2009-81601 A

  However, the access point cannot connect the wireless terminals to each other or connect to another network, and cannot transmit an instruction to perform processing to the subordinate wireless terminals. Therefore, there is a problem that labor management such as disconnecting communication at a preset time in the office and forcing the employee to quit the work cannot be performed.

  In the technique of Patent Document 1, the earthquake early warning receiver does not have to be connected by wire, so the emergency earthquake early warning receiver can be installed at a location desired by the user. In the breaking news receiver, for example, there is a problem that an instruction for evacuation action can be given only within a range where sound information can be heard. In addition, when it is desired to install earthquake early warning receivers at a plurality of locations, it is necessary to purchase a plurality of relatively expensive earthquake early warning receivers, which is expensive. Furthermore, since the earthquake early warning receiver is connected to the wireless terminal, for example, even if there are multiple wireless terminals in the communication area of the same access point, the user of the wireless terminal to which the emergency wireless receiver is connected However, there is a problem that it is possible to instruct optimal evacuation behavior.

  In order to solve the above-described problems caused by the conventional technology, the present invention relays a communication of a subordinate radio terminal and transmits a command to the subordinate radio terminal, a radio communication relay device, a radio terminal, and a radio communication system An object of the present invention is to provide a wireless communication relay method, a wireless communication method, a wireless communication relay program, and a wireless communication program.

  In order to solve the above-described problems and achieve the object, a wireless communication relay device according to the invention of claim 1 relays wireless communication of a subordinate wireless terminal and connects the wireless terminal to another network, or In a wireless communication relay device that connects wireless terminals to each other, an information acquisition unit that acquires predetermined information, and a generation that generates an instruction for the wireless terminal based on the predetermined information acquired by the information acquisition unit Means and an instruction transmitting means for transmitting the instruction generated by the generating means to the operating wireless terminal.

  According to the first aspect of the present invention, the wireless communication relay device can relay the communication of the subordinate radio terminal, and can generate and transmit an instruction to the subordinate radio terminal. Therefore, a wireless communication relay device that relays communication can cause a subordinate wireless terminal to perform processing.

  According to a second aspect of the present invention, in the wireless communication relay device according to the first aspect, the generation unit generates the instruction having different contents for each of the wireless terminals, and the instruction transmission unit The instruction corresponding to the wireless terminal is transmitted to each wireless terminal.

  According to the invention of claim 2, the wireless communication relay device can transmit a different instruction for each of the subordinate wireless terminals. Therefore, various processes can be performed according to the user of the wireless terminal and the device controlled by the wireless terminal.

  According to a third aspect of the present invention, the wireless communication relay device according to the first or second aspect of the present invention further comprises authentication means for performing mutual authentication between the own device and the wireless terminal. The instruction is transmitted only to the wireless terminal authenticated by the authentication means.

  According to the third aspect of the invention, the wireless communication relay device can transmit an instruction only to the wireless terminals that are mutually authenticated. Therefore, for example, a wireless LAN operator can perform processing only on a terminal owned by a contractor.

  According to a fourth aspect of the present invention, in the wireless communication relay device according to any one of the first to third aspects, the wireless terminal that has transmitted the instruction by the instruction transmission unit responds to the instruction. A completion notification receiving unit that receives a completion notification indicating that the processing has been completed; and a management unit that manages the completion notification received by the completion notification receiving unit.

  According to the invention of claim 4, the wireless communication relay device can know whether or not the wireless terminal that has transmitted the instruction has completed the process, and can manage the process completion rate.

  According to a fifth aspect of the present invention, in the wireless communication relay device according to any one of the first to fourth aspects, the information acquisition unit acquires text information, and the generation unit includes the text. Based on the information, the instruction for causing the wireless terminal to output audio information and video information is generated.

  According to the invention of claim 5, even if the acquired information is text information, the wireless communication relay device can cause the subordinate wireless terminal to output audio information and video information. Therefore, easy-to-understand information can be provided to the user of the wireless terminal.

  According to a sixth aspect of the present invention, in the wireless communication relay device according to any one of the first to fifth aspects, the information acquisition means acquires the predetermined information via the Internet. Features.

  According to the sixth aspect of the invention, the wireless communication relay device can generate an instruction for the wireless terminal according to various information obtained via the Internet.

  A wireless communication relay device according to a seventh aspect of the present invention is the wireless communication relay device according to any one of the first to fifth aspects, further comprising setting means for accepting setting of the instruction for the wireless terminal, the generating means Generates the instruction set by the setting means for the wireless terminal based on the predetermined information.

  According to the seventh aspect of the present invention, the wireless communication relay device can set an instruction to be transmitted to the wireless terminal in advance. Therefore, the administrator of the wireless LAN can cause the wireless terminal to perform a desired process.

  According to an eighth aspect of the present invention, in the wireless communication relay device according to the seventh aspect of the present invention, the setting means receives a setting of a time for disconnecting communication between the own device and the wireless terminal, and acquires the information Means for acquiring information relating to a connection state of communication between the own device and the wireless terminal, and the generation unit is configured to receive the information when the time set in advance by the setting unit is reached based on the connection state. The instruction to disconnect communication with the apparatus is generated.

  According to the eighth aspect of the present invention, the wireless communication relay device can forcibly disconnect the communication with the subordinate wireless terminal at a predetermined time. Therefore, for example, it is possible to perform labor management such as disconnecting communication at a preset time in the office or the like to force employees to quit their work.

  According to a ninth aspect of the present invention, there is provided a wireless communication relay device according to any one of the first to fifth aspects, wherein the setting means receives a setting of a predetermined state of an external device connected to the outside, Monitoring means for monitoring the state of the external device, and the information acquisition means acquires information on the predetermined state from the external device when the predetermined state of the external device is sensed by the monitoring means. The generation unit generates the instruction based on information on the predetermined state acquired by the information acquisition unit.

  According to the ninth aspect of the present invention, the wireless communication relay device can generate an instruction according to the operation or state of the device connected to the own device. Therefore, the wireless communication relay device not only relays wireless communication but also allows a subordinate wireless terminal to perform a function corresponding to the connected device.

  According to a tenth aspect of the present invention, in the wireless communication relay device according to any one of the first to ninth aspects, the monitoring means is a receiving device that receives an emergency earthquake bulletin transmitted from the Japan Meteorological Agency. Monitoring whether or not a signal has been received, and when the receiving device senses that the receiving device has received the signal, the information acquiring unit acquires the earthquake early warning from the receiving device and generates the The means generates the instruction based on the earthquake early warning.

  According to an eleventh aspect of the present invention, there is provided a wireless communication relay device according to any one of the first to fifth aspects, wherein the information acquisition means is a receiving device that receives an emergency earthquake bulletin transmitted from the Japan Meteorological Agency. The earthquake early warning is received, and the generating means generates the instruction based on the emergency earthquake early warning.

  According to the invention of claim 10 or 11, if within the communication area of the wireless communication relay device, only one emergency earthquake warning receiver is used to instruct an optimum evacuation action to each of a plurality of wireless terminals. Can do.

  According to a twelfth aspect of the present invention, in a wireless terminal connected to another network or another wireless terminal via a wireless communication relay device, the wireless terminal receives an instruction from the wireless communication relay device. And when the processing according to the instruction is completed by the processing means, the processing is completed in the wireless communication relay device. And a completion notification transmission means for transmitting a notification to that effect.

  According to the twelfth aspect of the present invention, the wireless terminal can perform processing according to an instruction from the wireless communication relay device. Then, the wireless communication relay device can manage the processing status of a plurality of wireless terminals.

  The wireless terminal according to a thirteenth aspect of the present invention is the wireless terminal according to the twelfth aspect of the present invention, further comprising accepting means for accepting an input of a button operation by a user, and the completion notification transmitting means is configured to receive the button by the accepting means. When an operation input is received, a notification that the processing is completed is transmitted to the wireless communication relay device.

  According to the invention of claim 13, for example, when a button displayed on the display is operated, a completion notice can be transmitted to the wireless communication relay device. Therefore, for example, when an instruction to output information on the display is received from the wireless communication relay device, an intention indicating whether or not the user has confirmed can be displayed. This can prevent the user from missing information.

  According to a fourteenth aspect of the present invention, a wireless communication system relays wireless communication between a wireless terminal and a subordinate wireless terminal and connects the wireless terminal to another network or connects the wireless terminals to each other. In the wireless communication system having the wireless communication relay device, the wireless communication relay device is configured to acquire information based on the information acquisition unit that acquires predetermined information and the predetermined information acquired by the information acquisition unit. Generating means for generating an instruction to the wireless communication terminal, and instruction transmitting means for transmitting the instruction generated by the generating means to the operating wireless terminal, wherein the wireless terminal receives the instruction from the wireless communication relay device An instruction receiving means for performing the processing according to the instruction received by the instruction receiving means.

  According to the fourteenth aspect of the present invention, the wireless communication relay device can relay the communication of the subordinate radio terminal, and can generate and transmit an instruction to the subordinate radio terminal. Therefore, a wireless communication relay device that relays communication can cause a subordinate wireless terminal to perform processing. Further, the wireless terminal can perform processing according to an instruction from the wireless communication relay device.

  A radio communication system according to a fifteenth aspect of the present invention is the radio communication system according to the fourteenth aspect of the present invention, wherein when the processing according to the instruction is completed by the processing means, the wireless terminal Completion notification transmission means for transmitting a notification that the process is completed, and the wireless communication relay device receives a completion notification that the process corresponding to the instruction is completed from the wireless terminal. And management means for managing the completion notification received by the completion notification receiving means.

  According to the fifteenth aspect of the present invention, the wireless communication relay device can know whether or not the wireless terminal that has transmitted the instruction has completed processing, and can manage the processing completion rate. Also, the wireless terminal can cause the wireless communication relay device to manage the processing status of the plurality of wireless terminals.

  The radio communication relay method according to the invention of claim 16 relays radio communication of a subordinate radio terminal and connects the radio terminal to another network or connects the radio terminals to each other. In the wireless communication relay method in the apparatus, an information acquisition step of acquiring predetermined information, a generation step of generating an instruction for the wireless terminal based on the predetermined information acquired by the information acquisition step, and the generation step And an instruction transmission step of transmitting the instruction generated by the method to the operating wireless terminal.

  According to the sixteenth aspect of the present invention, the wireless communication relay device can relay the communication of the subordinate radio terminal, and can generate and transmit an instruction to the subordinate radio terminal. Therefore, a wireless device that relays communication can cause a subordinate wireless terminal to perform processing. Further, the wireless terminal can perform processing according to an instruction from the wireless communication relay device.

  According to a seventeenth aspect of the present invention, there is provided a radio communication method for a radio terminal connected to another network or another radio terminal by relaying the radio communication relay device. An instruction receiving step for receiving the information, a processing step for performing processing according to the instruction received by the instruction receiving step, and a processing corresponding to the instruction by the processing step is completed. And a completion notification transmission step of transmitting a notification that the processing is completed.

  According to this aspect of the invention, the wireless communication relay device can know whether or not the wireless terminal that has transmitted the instruction has completed the process, and can manage the process completion rate. Also, the wireless terminal can cause the wireless communication relay device to manage the processing status of the plurality of wireless terminals.

  A wireless communication relay program according to the invention of claim 18 causes a computer to execute the wireless communication relay method according to claim 16.

  According to the eighteenth aspect of the present invention, it is possible to cause a computer to execute the wireless communication relay method according to the sixteenth aspect.

  According to a nineteenth aspect of the present invention, a wireless communication program causes a computer to execute the wireless communication method according to the seventeenth aspect.

  According to the nineteenth aspect of the present invention, it is possible to cause a computer to execute the wireless communication method according to the seventeenth aspect.

  According to the wireless communication relay device, the wireless terminal, the wireless communication system, the wireless communication relay method, the wireless communication method, the wireless communication relay program, and the wireless communication program according to the present invention, the communication of the subordinate wireless terminal is relayed and the subordinate There is an effect that an instruction can be transmitted to the wireless terminal.

It is explanatory drawing shown about the structure of the radio | wireless communications system concerning this Embodiment. It is the block diagram shown about the structure of the access point. It is the block diagram shown about the structure of the radio | wireless terminal. It is a sequence diagram shown about the outline | summary of the radio | wireless communication process of a radio | wireless communications system. It is the sequence diagram shown about the content of the process of mutual authentication. 1 is an explanatory diagram illustrating a configuration of a wireless communication system according to a first embodiment. FIG. 3 is a sequence diagram illustrating an outline of processing of the wireless communication system according to the first embodiment. It is explanatory drawing shown in detail about the earthquake early warning. FIG. 6 is an explanatory diagram illustrating a configuration of a wireless communication system according to a second embodiment. FIG. 10 is a sequence diagram illustrating an outline of processing of the wireless communication system according to the second embodiment.

  Exemplary embodiments of a wireless communication relay device, a wireless terminal, a wireless communication system, a wireless communication relay method, a wireless communication method, a wireless communication relay program, and a wireless communication program according to the present invention will be described in detail below with reference to the accompanying drawings. Explained.

(Embodiment)
(Configuration of wireless communication system)
First, the configuration of a wireless communication system (wireless LAN) according to the present embodiment will be described with reference to FIG. FIG. 1 is an explanatory diagram showing the configuration of the wireless communication system according to the present embodiment. As illustrated in FIG. 1, the wireless communication system 100 includes wireless terminals 101 (101a to 101c) and access points 110 (110a and 101b). Here, the access point 110 implements the function of a wireless communication relay device. The access point 110 relays wireless communication of the wireless terminal 101. Then, the wireless terminal 101 is connected to the Internet 120, or communication between the wireless terminals 101 is connected.

  In addition, the access point 110 acquires predetermined information via the Internet 120 or from an external device directly connected. Based on the acquired predetermined information, an instruction for each wireless terminal 101 is generated and transmitted to each wireless terminal 101. Further, the access point 110 may manage the wireless terminal 101. Specifically, for example, mutual authentication with the wireless terminal 101 is performed, and the ID and unique information of the wireless terminal 101 under the authentication are managed. When a completion notification (to be described later) is received from the wireless terminal 101, statistics of the completion notification may be collected or compared with information about the wireless terminal 101 that is held in advance.

  The wireless terminal 101 receives an instruction from the access point 110 and performs processing according to the received instruction. When the process is completed, a completion notification indicating that the process is completed is transmitted to the access point 110.

  Here, as the wireless LAN mode, an infrastructure mode in which communication is performed via the access point 110 is used. In the ad hoc mode in which the wireless terminals 101 communicate directly with each other without using the access point 110, there are restrictions such as being unable to communicate with two or more wireless terminals 101 at the same time. However, in the infrastructure mode, two or more wireless devices are connected. It can communicate with the terminal 101.

  A communication protocol capable of wirelessly communicating between the access points 110 is called a WDS (Wireless Distribution System). Specifically, for example, the first access point 110a can wirelessly communicate with the second access point 110b when the second access point 110b is within the communication area.

  Information acquired from the Internet 120 or the like, or information generated in the access point 110 relays data between the access points 110 by WDS, and repeats this process when another access point 110 is in the communication area. In this way, data can be connected. When communication is repeated in this way, the communication network spreads in a mesh shape, so that redundant communication can be performed.

  In the present invention, wireless communication is performed using WiFi (Wireless Fidelity) compliant with IEEE802.11. However, wireless communication may be performed using WiMAX (Worldwide Interoperability Access) compliant with IEEE802.16.

  In wireless communication using WDS, unlike wired communication, the risk of eavesdropping on a flowing radio wave increases. Therefore, in the present invention, communication may be performed by secure means using an IPN (Identified Private Network or the Intelligent Packet Network).

  The IPN can perform mutual authentication without going through a certificate authority or an authentication server. The setting is very simple because it is completed only by registering the authentication ID and the authentication password. Furthermore, in the authentication method in which the authentication password is fixed, there is a problem if the authentication password is stolen, but in the case of IPN, the authentication password dynamically changes with a one-time password. Further, since the update frequency of the authentication password is every packet, eavesdropping cannot be performed. The authentication password does not flow on the network, and only flows a one-way hash value. Furthermore, since it has a data tampering detection function and the tampered data is automatically discarded, communication between the two parties can only allow tamper-free communication between trusted and mutually authenticated devices.

  Accordingly, the IPN eliminates the impersonation of the wireless terminal 101 and the access point 110, performs mutual authentication for each TCP session, and dynamically changes the authentication password for each packet, thereby allowing the wireless terminal 101 and the access point 110 to be Data can be transmitted and received between the two access points 110 by a secure means. The data transmitted in the present invention is character information, audio information, video information, and the like.

(Access point configuration)
Next, the configuration of the access point 110 will be described with reference to FIG. FIG. 2 is a block diagram showing the configuration of the access point. As illustrated in FIG. 2, the access point 110 includes a monitoring unit 201, an information acquisition unit 202, a setting unit 203, an authentication unit 204, a control unit 210, and a communication unit 220.

  The monitoring unit 201 monitors the status of external devices connected to the outside. Specifically, the monitoring unit 201 monitors whether or not a receiving device (hereinafter referred to as an emergency earthquake warning receiver) that receives an earthquake early warning transmitted from, for example, the Japan Meteorological Agency has received a signal. The earthquake early warning is information on the epicenter and the predicted arrival time of the main motion transmitted from the Japan Meteorological Agency, although details will be described later. That is, when the emergency earthquake warning receiver is built in the access point 110, the monitoring unit 201 monitors whether or not the built-in emergency earthquake bulletin receiver has received a signal from the Japan Meteorological Agency.

  The information acquisition unit 202 acquires predetermined information. The information acquisition unit 202 may acquire predetermined information via the Internet 120. Further, when the monitoring unit 201 senses a predetermined state of the external device, the information acquisition unit 202 may acquire information regarding the predetermined state from the external device. Specifically, for example, when the monitoring unit 201 senses that the earthquake early warning receiver has received a signal, the information acquisition unit 202 acquires information on the emergency earthquake early warning.

  Here, the predetermined information specifically refers to, for example, information relating to a connection state of communication between the own apparatus and the wireless terminal 101, information relating to the state of an external device, information relating to a disaster such as an earthquake, or management of the wireless terminal 101. Information. The predetermined information may be text information, audio information or video information. Note that the information regarding the connection state of communication between the own device and the wireless terminal 101 is, for example, which wireless terminal 101 of the subordinate wireless terminals 101 is connected to the communication. Further, the information regarding the state of the external device is information indicating how the external device connected to the own device is operating.

  The setting unit 203 receives an instruction setting for the wireless terminal 101. Here, the instruction setting is a setting of what kind of information is to be generated by the generation unit 211 described later when the information acquisition unit 202 acquires the information. Specifically, the setting unit 203 receives, for example, a setting of a time for disconnecting communication between the own device and the wireless terminal 101. In addition, the setting unit 203 receives a setting of a predetermined state of an external device connected to the outside.

  The authentication unit 204 performs mutual authentication between the own device and the wireless terminal 101. The authentication unit 204 may perform mutual authentication every time the communication is relayed, or may perform mutual authentication between the access points 110. Specifically, for example, mutual authentication is performed by changing the authentication password for each communication using a one-time password.

  The control unit 210 processes the acquired information and generates an instruction according to the subordinate wireless terminal 101. In addition, the wireless terminal 101 is managed by receiving a completion notification for the unique information and instructions from the wireless terminal 101. The control unit 210 includes a generation unit 211 and a management unit 212.

  The generation unit 211 generates an instruction for the wireless terminal 101 based on the predetermined information acquired by the information acquisition unit 202. The generation unit 211 may generate an instruction with different contents for each wireless terminal 101. Further, the generation unit 211 may generate an instruction for causing the wireless terminal 101 to output audio information and video information based on the text information. Further, the generation unit 211 may generate an instruction set by the setting unit 203 for the wireless terminal 101 based on predetermined information acquired by the information acquisition unit 202.

  Specifically, the generation unit 211 instructs to disconnect the communication with the own device when the time set in advance by the setting unit 203 is reached based on the connection state of the communication between the own device and the wireless terminal 101. Is generated. In addition, the generation unit 211 generates an instruction based on information regarding a predetermined state of the external device acquired by the information acquisition unit 202. Specifically, for example, when the information acquisition unit 202 has acquired the earthquake early warning, the generation unit 211 generates an instruction based on the earthquake early warning.

  The instruction generated based on the earthquake early warning is, for example, an instruction to output the evacuation route corresponding to the user using each wireless terminal 101 to the display or speaker of each wireless terminal 101, This is an instruction to cause the controlled device to perform processing for a disaster. Moreover, the instruction | indication which outputs the information regarding disasters, such as an epicenter, to a display, a speaker, etc. may be sufficient.

  The management unit 212 manages the completion notification received by the completion notification receiving unit 222 described later. That is, the management unit 212 collects completion notification statistics transmitted from the subordinate wireless terminal 101. In addition, the management unit 212 may identify the wireless terminal 101 that has not received a completion notification, and cause the instruction transmission unit 221 to transmit an instruction again or transmit an instruction to transmit a completion notification. .

  Furthermore, the management unit 212 may manage information related to the subordinate wireless terminal 101 in advance. Specifically, the management unit 212 may manage, for example, the ID and address of each subordinate wireless terminal 101 in advance. In addition, the management unit 212 may manage the number of evacuated persons by collecting completion notification statistics when an instruction generated based on the earthquake early warning is transmitted by the instruction transmission unit 221 described later.

  The communication unit 220 transmits / receives information to / from each wireless terminal 101 under its control. That is, the communication unit 220 can perform bidirectional communication between the access point 110 and the wireless terminal 101. The communication unit 220 includes an instruction transmission unit 221 and a completion notification reception unit 222.

  The instruction transmission unit 221 transmits the instruction generated by the generation unit 211 to the operating wireless terminal 101. The instruction transmission unit 221 may transmit an instruction corresponding to each wireless terminal 101 to each wireless terminal 101. The instruction transmission unit 221 may be configured to transmit an instruction only to the wireless terminal 101 authenticated by the authentication unit 204.

  The completion notification receiving unit 222 receives a completion notification indicating that the processing according to the instruction is completed from the wireless terminal 101 that has transmitted the instruction by the instruction transmission unit 221. Specifically, the completion notification may be, for example, a notification to start evacuation by the user.

(Configuration of wireless terminal)
Next, the configuration of the wireless terminal 101 will be described with reference to FIG. FIG. 3 is a block diagram showing the configuration of the wireless terminal. As illustrated in FIG. 3, the wireless terminal 101 includes a processing unit 301, a reception unit 302, and a communication unit 310.

  The processing unit 301 performs a process according to an instruction received by an instruction receiving unit 311 described later. Specifically, the processing unit 301 disconnects communication with the access point 110 when, for example, a predetermined time is reached. Further, the processing unit 301 may output information relating to a disaster such as an epicenter or an evacuation route from a display or a speaker, or may cause a device controlled by the own apparatus to perform a process for a disaster.

  Further, the processing unit 301 may display a button indicating the user's will, such as a button indicating that the processing is completed or a button indicating that evacuation is started, on a display or the like.

  The accepting unit 302 accepts an input of a button operation by the user. The accepting unit 302 accepts an input of a button operation when, for example, a button displayed on a display or the like by the processing unit 301 is operated by a user.

  The communication unit 310 transmits / receives information to / from the access point 110. That is, the communication unit 220 can perform bidirectional communication between the access point 110 and the wireless terminal 101. The communication unit 310 includes an instruction receiving unit 311 and a completion notification transmitting unit 312.

  The instruction receiving unit 311 receives an instruction for the wireless terminal 101 from the access point 110. The instruction receiving unit 311 may receive a different instruction for each wireless terminal 101. The instruction receiving unit 311 may receive an instruction only from the access point 110 that has been mutually authenticated by an authentication unit (not shown).

  When the processing unit 301 completes the processing according to the instruction, the completion notification transmission unit 312 transmits a completion notification indicating that the processing has been completed to the access point 110. Further, the completion notification transmission unit 312 may transmit a completion notification indicating that the processing is completed to the access point 110 when the reception unit 302 receives an input of a button operation by the user.

(Outline of wireless communication processing of wireless communication system)
Next, an outline of wireless communication processing of the wireless communication system 100 will be described with reference to FIG. FIG. 4 is a sequence diagram illustrating an outline of wireless communication processing of the wireless communication system. In FIG. 4, first, the access point (AP) 110 waits until predetermined information is acquired by the information acquisition unit 202 (step S401: No loop). When predetermined information is acquired in step S401 (step S401: Yes), the authentication unit 204 performs mutual authentication with the wireless terminal 101 (step S402).

  Next, based on the predetermined information acquired in step S401, the access point 110 generates an instruction for the wireless terminal 101 that is mutually authenticated in step S402 by the generation unit 211 (step S403). Then, the instruction transmission unit 221 transmits the instructions generated in step S403 to the wireless terminal 101 (step S404).

  Next, the wireless terminal 101 receives the instruction transmitted from the access point 110 in step S404 by the instruction receiving unit 311 and performs processing according to the instruction by the processing unit 301 (step S405). Then, it is determined whether or not the processing performed in step S405 has been completed, or whether or not an input of a button operation by the user has been received by the receiving unit 302 (step S406).

  If it is not determined in step S406 that the process has been completed, or if an input of a button operation by the user has not been received (step S406: No), the process returns to step S405, and the subsequent processes are repeated. If it is determined in step S406 that the process has been completed, or if an input of a button operation by the user is received (step S406: Yes), the completion notification transmission unit 312 indicates that the process has been completed at the access point 110. Is sent (step S407).

  Next, the access point 110 receives the completion notification transmitted from the wireless terminal 101 in step S407 by the completion notification receiving unit 222, and manages the completion notification by the management unit 212 (step S408).

  In the sequence diagram of FIG. 4, mutual authentication with the wireless terminal 101 is performed in step S <b> 402, but is not limited thereto. Specifically, for example, the access point 110 may perform mutual authentication with another access point 110 and transmit the predetermined information acquired in step S401 to the other access point 110.

(Contents of mutual authentication processing)
Next, the contents of mutual authentication processing performed when data is transferred between the wireless terminal 101 and the access point 110 in FIG. 4 or between the two access points 110 will be described with reference to FIG. FIG. 5 is a sequence diagram showing the contents of the mutual authentication process. In FIG. 5, first, the wireless terminal 101 adds an IPN-WLAN (Wireless LAN) WDS Request (IPN-WLAN request) to the 802.11 Probe Request (probe request) and transmits it to the access point 110 (step S501). .

  Next, the access point 110 confirms the IPN-WLAN request added to the probe request transmitted in step S501. Then, IPN-WLAN Authentication data (IPN-WLAN authentication data) is added to the probe request transmitted to the wireless terminal 101 (source address) and sent (step S502). Further, the access point 110 adds the IPN-WLAN request to the probe request and transmits it to the wireless terminal 101 (step S503).

  Then, the wireless terminal 101 authenticates the access point 110 using the IPN-WLAN authentication data of the probe request transmitted in step S502. Further, the IPN-WLAN request added to the probe request transmitted in step S503 is confirmed. Also, IPN-WLAN authentication data is added to the 802.11 probe response (probe response) transmitted to the access point 110 (source address) and transmitted (step S504).

  Next, the access point 110 authenticates the wireless terminal 101 using the IPN-WLAN authentication data of the probe response transmitted in step S504. Thus, mutual authentication of the wireless terminal 101 and the access point 110 is performed, and a communication connection is established. After the connection is established, between the wireless terminal 101 and the access point 110, 802.11 WDS Data frame (data frame) and IPN-WLAN Authentication data with AES 128bit (IPN-WLAN authentication data for AES encryption processing) Are transmitted and received (step S505).

  After step S505, the wireless terminal 101 authenticates the access point 110 with IPN-WLAN authentication data every time a data frame is received. Then, AES encryption processing using IPN-WLAN authentication data as an encryption key is performed. The IPN-WLAN authentication data is updated every time the access point 110 is authenticated. A method of updating the IPN-WLAN authentication data every time the access point 110 is authenticated in this way is called a one-time password. Further, the encryption key is updated every time the access point 110 is authenticated by updating the IPN-WLAN authentication data.

  Similarly, after step S505, every time the access point 110 receives a data frame, the access point 110 authenticates the wireless terminal 101 with the IPN-WLAN authentication data. Then, AES encryption processing using IPN-WLAN authentication data as an encryption key is performed. The IPN-WLAN authentication data is updated every time the wireless terminal 101 is authenticated. Similarly, every time the wireless terminal 101 is authenticated, the IPN-WLAN authentication data is updated. Further, the encryption key is updated every time the wireless terminal 101 is authenticated.

  According to the above-described embodiment, the access point 110 that relays communication of the subordinate radio terminal 101 can transmit an instruction to the subordinate radio terminal 101. Therefore, the wireless LAN access point 110 can perform an intelligent function. As a result, the access point 110 can cause the subordinate wireless terminal 101 to perform a desired process and manage its processing status. Further, the access point 110 can transmit an instruction only to the wireless terminal 101 that has been mutually authenticated. Therefore, it is possible to prevent the contents of the processing of the wireless terminal 101 from leaking to a third party by transmitting an instruction by a secure means.

Example 1
(About the structure of the radio | wireless communications system concerning Example 1)
Next, as Example 1, an example of a method for transmitting an instruction corresponding to the wireless terminal 101 based on the emergency earthquake bulletin transmitted from the Japan Meteorological Agency by the access point 110 according to the embodiment will be described. FIG. 6 is an explanatory diagram of the configuration of the wireless communication system according to the first embodiment. As shown in FIG. 6, in the wireless communication system 600 according to the first embodiment, an emergency earthquake warning receiver 601 is connected to the access point 110. Further, the earthquake early warning receiver 601 may be built in the access point 110 as indicated by a broken line in FIG. Note that the configurations of the access point 110 and the wireless terminal 101 are the same as those in the embodiment, and a description thereof will be omitted.

  The earthquake early warning receiver 601 receives the earthquake early warning transmitted from the Japan Meteorological Agency 602. Here, immediately after the occurrence of the earthquake, the earthquake early warning analyzes the observation data captured by the seismometer close to the epicenter and immediately estimates the epicenter and the magnitude of the earthquake (magnitude). This is a prediction and warning of earthquake motion that predicts the arrival time and seismic intensity of the earthquake and informs it as quickly as possible.

  Further, the earthquake early warning receiver 601 calculates the predicted seismic intensity and main motion arrival time at an arbitrary point based on the received emergency earthquake early warning. Specifically, the seismic intensity corresponding to an arbitrary point is predicted and calculated from the type of ground (ease of shaking), the position of the epicenter, and the magnitude (magnitude) of the epicenter. In addition, the time for a large fluctuation (main motion: S wave) to arrive is predicted and calculated from the latitude and longitude of an arbitrary point, the location of the earthquake, and the time. Then, the time at which the main motion arrives can be counted down based on the difference between the calculation result of the main motion arrival time and the clock built in the earthquake early warning receiver 601. In the first embodiment, the process in which the earthquake early warning receiver 601 receives the earthquake early warning distributed from the Japan Meteorological Agency 602 by wireless communication has been described. However, the present invention is not limited to this. Specifically, for example, a receiver that receives information distributed from the national instantaneous warning system (J-ALERT) may receive the information by wireless communication.

  In FIG. 6, for example, the earthquake early warning receiver 601 receives the earthquake early warning transmitted from the Japan Meteorological Agency 602 via the Internet 120. Then, the access point 110 acquires the earthquake early warning from the earthquake early warning receiver 601 and generates an instruction for each subordinate wireless terminal 101. Then, an instruction corresponding to each wireless terminal 101 is transmitted. When receiving the instruction from the access point 110, the wireless terminal 101 outputs, for example, information indicating the epicenter and information regarding the evacuation route optimal for the user of each wireless terminal 101 from a display or a speaker based on the instruction. That is, the evacuation routes output to each wireless terminal 101 may be different evacuation routes.

  In addition, each wireless terminal 101 may receive an input of a button operation indicating the start of evacuation by a user and transmit the input to the access point 110. The access point 110 may manage the number of people evacuated and the damage status based on information about the wireless terminal 101 such as IDs and unique information that have been managed in advance and the notification of the start of evacuation.

(Outline of processing of wireless communication system according to first embodiment)
Next, an outline of processing of the wireless communication system 600 according to the first embodiment will be described. FIG. 7 is a sequence diagram illustrating an outline of processing of the wireless communication system according to the first embodiment. As shown in FIG. 7, the access point 110 first monitors the earthquake early warning receiver 601 by the monitoring unit 201 (step S701). When the earthquake early warning receiver 601 receives a signal from the Japan Meteorological Agency 602 (step S702), the access point 110 senses that the earthquake early warning receiver 601 has received the signal. Then, the earthquake early warning receiver 601 is requested for the earthquake early warning (step S703).

  Next, upon receiving an earthquake early warning request from the access point 110 in step S703, the earthquake early warning receiver 601 transmits the earthquake early warning received in step S702 to the access point 110 (step S704).

  In steps S701 to S704, the access point 110 does not have to monitor the earthquake early warning receiver 601 in step S701. In this case, when the earthquake early warning receiver 601 receives a signal from the Japan Meteorological Agency in step S702, step S703 may be omitted, and the process proceeds to step S704 to transmit the emergency earthquake early warning to the access point 110.

  Next, when the information acquisition unit 202 receives the earthquake early warning transmitted from the earthquake early warning receiver 601 in step S704, the access point 110 performs mutual authentication with the wireless terminal 101 using the authentication unit 204 (step S704). S705). Then, the generation unit 211 generates an instruction corresponding to each of the subordinate wireless terminals 101 authenticated in step S705 (step S706), and the instruction transmission unit 221 transmits an instruction corresponding to each wireless terminal 101. (Step S707).

  Here, the instruction generated in step S <b> 705 may be different for each wireless terminal 101. Specifically, instructions for performing optimal processing for each location where each wireless terminal 101 is installed, a device controlled by each wireless terminal 101, or a user using each wireless terminal 101, Generate an instruction to output the optimal evacuation route.

  Next, the wireless terminal 101 receives the instruction transmitted from the access point 110 in step S707 by the instruction receiving unit 311. Then, according to the received instruction, the processing unit 301 outputs information such as the epicenter and the evacuation route as audio information and video information (step S708). In step S708, a button that can notify that the user has started evacuation may be displayed.

  The wireless terminal 101 waits until the reception unit 302 receives an input indicating that evacuation has started from the user (step S709: No loop). If an input indicating that evacuation has been started is received from the user in step S709 (step S709: Yes), the completion notification transmission unit 312 transmits a notification that the user has started evacuation (step S710).

  Next, the access point 110 receives the notification that the user has started evacuation transmitted from the wireless terminal 101 in step S <b> 710 by the completion notification receiving unit 222, and manages the evacuation number by the management unit 212. (Step S711).

  In the sequence diagram of FIG. 7, in step S708, information such as the epicenter and the evacuation route is output as audio information and video information. However, the present invention is not limited to this. Specifically, for example, when the wireless terminal 101 is used to control a device, the device may perform a disaster process. In the process for disaster, for example, the control of the device is stopped or moved to a safe point. In this case, in step S709, it is determined whether or not the process has been completed. In step S710, if it is determined in step S709 that the process has been completed, a completion notification indicating that the process has been completed is transmitted. In step S711, the processing completion rate may be managed.

  In the sequence diagram of FIG. 7, if no input indicating that evacuation is started is received from the user in step S709: No, the process returns to step S708 to output information such as the epicenter and the evacuation route by a different method. May be. Specifically, the volume of the audio information may be increased, or the display of the video information may be blinked.

(About Earthquake Early Warning)
FIG. 8 is an explanatory diagram showing the details of the earthquake early warning. As shown in FIG. 8, when an initial microtremor (P wave) is observed in a seismometer 801 installed at a location close to the epicenter, this observation data is transmitted to the Japan Meteorological Agency 602. The Japan Meteorological Agency 602 analyzes the observation data and immediately estimates the location of the epicenter and the magnitude (magnitude) of the earthquake, and predicts the propagation of the main motion (S wave) coming later in time series. The Japan Meteorological Agency 602 transmits these pieces of information to the earthquake early warning receiver 601 via the Internet 120. The access point 110a acquires the earthquake early warning from the earthquake early warning receiver 601 and transmits an instruction corresponding to each wireless terminal 101 generated based on the earthquake early warning to each wireless terminal 101.

  In addition, when there is another access point 110b in the wireless communication area, the access point 110a may wirelessly transmit an emergency earthquake bulletin to the other access point 110b. By doing in this way, it is possible to transmit an instruction to the wireless terminal 101 subordinate to the other access point 110b to which the earthquake early warning receiver 601 is not connected. In this way, by connecting communication areas, it is possible to reduce the damage caused by earthquakes by processing emergency information on a wide range of users and processing them into optimal information for each user.

  In the first embodiment described above, even if there is only one relatively early earthquake early warning receiver 610, it is possible to instruct optimal evacuation behavior to a plurality of users. As a result, damage caused by earthquakes can be reduced at low cost. In addition, by managing the notification that the user has started evacuation, the number of evacuation persons, the disaster situation, the identification of missing persons, and the like can be quickly performed.

  In the first embodiment, the access point 110 can cause a device controlled by the subordinate wireless terminal 101 to perform a process for a disaster. Therefore, for example, devices such as factories and civil engineering sites can be evacuated to a safe position or work can be stopped. As a result, secondary disasters caused by earthquakes can be prevented.

(Example 2)
(About the structure of the radio | wireless communications system concerning Example 2)
Next, as Example 2, an example of a method for blocking communication between the access point 110 and the wireless terminal 101 at a preset time by the access point 110 according to the embodiment will be described. FIG. 9 is an explanatory diagram of the configuration of the wireless communication system according to the second embodiment.

  In the second embodiment, it is assumed that the access point 110 includes a timer unit 901 and the setting unit 203 accepts the setting of the time for disconnecting communication between the own device and the wireless terminal 101. Specifically, for example, when a setting for disconnecting communication between the access point 110 and the wireless terminal 101 is received at 5 pm, the access point 110 and each wireless terminal when the timekeeping unit 901 indicates 5 pm The communication with 101 is disconnected. Since other configurations are the same as those of the embodiment, the description thereof is omitted.

(Outline of processing of wireless communication system according to second embodiment)
Next, an outline of processing of the wireless communication system 900 according to the second embodiment will be described. FIG. 10 is a sequence diagram illustrating an overview of processing of the wireless communication system according to the second embodiment. As shown in FIG. 10, first, the access point 110 waits until the setting unit 203 accepts the setting of the time for disconnecting communication with the wireless terminal 101 (step S1001: No loop).

  When the setting of the time for disconnecting communication with the wireless terminal 101 is accepted in step 1001 (step S1001: Yes), the authentication unit 204 performs mutual authentication with the wireless terminal 101 (step S1002). In step S1001, a different time setting may be accepted for each wireless terminal 101.

  Then, the access point 110 monitors the connection state of communication with the subordinate wireless terminal 101 that has been mutually authenticated in step S1002 (step S1003). In step S <b> 1003, the connection state of communication with the wireless terminal 101 may be monitored by continuously acquiring information related to the connection state of communication between the own device and the wireless terminal 101 by the information acquisition unit 202.

  Next, the access point 110 measures the time by the timer unit 901 and waits until the time set in step S1001 is reached (step S1004: No loop). When the time set in step S1004 is reached (step S1004: Yes), the generation unit 211 generates an instruction to disconnect communication (step S1005). In step S1005, an instruction to disconnect communication may be generated for each wireless terminal 101 at a different time. Then, the instruction transmission unit 221 transmits the instruction generated in step S1005 to the wireless terminal 101 (step S1006).

  Next, the wireless terminal 101 receives the instruction transmitted from the access point 110 in step S1006 by the instruction receiving unit 311. Based on the received instruction, communication with the access point 110 is disconnected (step S1007).

  In the sequence diagram of FIG. 10, an instruction to disconnect communication is generated in step S1005, and the instruction is transmitted in step S1006. However, the present invention is not limited to this. Specifically, for example, when the time set in Step S1004: Yes, Steps S1005 to S1007 may be omitted, and the access point 110 may disconnect the communication with the wireless terminal 101.

  In the sequence diagram of FIG. 10, the communication between the access point 110 and the wireless terminal 101 is disconnected when a predetermined time is reached, but the present invention is not limited to this. Specifically, for example, the communication between the access point 110 and the wireless terminal 101 may be connected when a predetermined time comes.

  In the above-described second embodiment, communication between the access point 110 and the wireless terminal 101 can be forcibly disconnected when a predetermined time comes. Therefore, for example, after working hours have passed in the office, it is possible to forcibly disable work to perform labor management, or to prohibit communication outside the class at school.

  As described above, according to the wireless communication relay device, the wireless terminal, the wireless communication system, the wireless communication relay method, the wireless communication method, the wireless communication relay program, and the wireless communication program, the communication of the subordinate wireless terminal is relayed and subordinated. An instruction can be transmitted to the wireless terminal.

  The wireless communication relay method or wireless communication method described in this embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation. This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, and a DVD, and is executed by being read from the recording medium by the computer. The program may be a transmission medium that can be distributed via a network such as the Internet.

  As described above, the wireless communication relay device, the wireless terminal, the wireless communication system, the wireless communication relay method, the wireless communication method, the wireless communication relay program, and the wireless communication program according to the present invention are wireless devices that relay communication of a plurality of wireless terminals. It is useful for a communication system, and is particularly suitable for a wireless communication system that instructs a plurality of wireless terminals to evacuate when an earthquake occurs.

DESCRIPTION OF SYMBOLS 110 Access point 201 Monitoring part 202 Information acquisition part 203 Setting part 204 Authentication part 210 Control part 220 Communication part

Claims (19)

In a wireless communication relay device that relays wireless communication of a subordinate wireless terminal and connects the wireless terminal to another network, or connects the wireless terminals to each other,
Information acquisition means for acquiring predetermined information;
Generating means for generating an instruction for the wireless terminal based on the predetermined information acquired by the information acquiring means;
Instruction transmitting means for transmitting the instruction generated by the generating means to the operating wireless terminal;
A wireless communication relay device comprising: The generation unit generates the instruction having different contents for each wireless terminal,
The wireless communication relay device according to claim 1, wherein the instruction transmitting unit transmits the instruction corresponding to each of the wireless terminals to each of the wireless terminals. An authentication means for performing mutual authentication between the device and the wireless terminal;
The wireless communication relay device according to claim 1, wherein the instruction transmission unit transmits the instruction only to the wireless terminal authenticated by the authentication unit. A completion notification receiving means for receiving a completion notification to the effect that processing according to the instruction is completed from the wireless terminal that has transmitted the instruction by the instruction transmitting means;
Management means for managing the completion notification received by the completion notification receiving means;
The wireless communication relay device according to claim 1, further comprising: The information acquisition means acquires text information,
The wireless communication relay according to claim 1, wherein the generation unit generates the instruction to cause the wireless terminal to output audio information and video information based on the text information. apparatus.   The wireless communication relay device according to claim 1, wherein the information acquisition unit acquires the predetermined information via the Internet. Further comprising setting means for accepting setting of the instruction to the wireless terminal;
The wireless communication according to claim 1, wherein the generation unit generates the instruction set by the setting unit for the wireless terminal based on the predetermined information. Relay device. The setting means accepts a setting of a time for disconnecting communication between the device and the wireless terminal,
The information acquisition means acquires information related to a connection state of communication between the own device and the wireless terminal,
The said generation means produces | generates the said instruction | indication which cut | disconnects communication with the said own apparatus, when it becomes time preset by the said setting means based on the said connection state. The wireless communication relay device described. Setting means for accepting the setting of a predetermined state of an external device connected to the outside;
Monitoring means for monitoring the state of the external device;
Further comprising
When the information acquisition unit senses a predetermined state of the external device by the monitoring unit, the information acquisition unit acquires information on the predetermined state from the external device;
The wireless communication relay device according to claim 1, wherein the generation unit generates the instruction based on information on the predetermined state acquired by the information acquisition unit. . The monitoring means monitors whether or not the receiving device that receives the earthquake early warning transmitted from the Japan Meteorological Agency has received the signal,
The information acquisition means acquires the earthquake early warning from the receiving device when the monitoring device senses that the receiving device has received the signal,
The wireless communication relay device according to claim 1, wherein the generation unit generates the instruction based on the emergency earthquake bulletin. The information acquisition means receives the earthquake early warning from a receiving device that receives the earthquake early warning transmitted from the Japan Meteorological Agency,
The wireless communication relay device according to claim 1, wherein the generation unit generates the instruction based on the emergency earthquake bulletin. In a wireless terminal connected to another network or another wireless terminal via a wireless communication relay device,
An instruction receiving means for receiving an instruction from the wireless communication relay device;
Processing means for performing processing in accordance with the instruction received by the instruction receiving means;
A completion notification transmitting means for transmitting a notification that the processing is completed to the wireless communication relay device when processing according to the instruction is completed by the processing means;
A wireless terminal comprising: It further comprises a receiving means for receiving an input of a button operation by the user,
The said completion notification transmission means transmits the notification that the said process was completed to the said radio | wireless communication relay apparatus, when the input of the said button operation is received by the said reception means. Wireless terminal. In a wireless communication system including a wireless terminal and a wireless communication relay device that relays wireless communication between a wireless terminal under control and connects the wireless terminal to another network or connects the wireless terminals to each other.
The wireless communication relay device
Information acquisition means for acquiring predetermined information;
Generating means for generating an instruction for the wireless terminal based on the predetermined information acquired by the information acquiring means;
Instruction transmitting means for transmitting the instruction generated by the generating means to the operating wireless terminal;
With
The wireless terminal is
An instruction receiving means for receiving an instruction from the wireless communication relay device;
Processing means for performing processing in accordance with the instruction received by the instruction receiving means;
A wireless communication system comprising: The wireless terminal is
When the processing according to the instruction is completed by the processing means, further comprising a completion notification transmitting means for transmitting a notification that the processing is completed to the wireless communication relay device,
The wireless communication relay device
A completion notification receiving means for receiving from the wireless terminal a completion notification indicating that the processing according to the instruction has been completed;
Management means for managing the completion notification received by the completion notification receiving means;
The wireless communication system according to claim 14, further comprising: In a wireless communication relay method in a wireless communication relay device that relays wireless communication of a subordinate wireless terminal, connects the wireless terminal to another network, or connects the wireless terminals to each other,
An information acquisition step of acquiring predetermined information;
A generating step for generating an instruction for the wireless terminal based on the predetermined information acquired by the information acquiring step;
An instruction transmission step of transmitting the instruction generated by the generation step to the operating wireless terminal;
A wireless communication relay method comprising: In a wireless communication method in a wireless terminal connected to another network or another wireless terminal via a wireless communication relay device,
An instruction receiving step of receiving an instruction from the wireless communication relay device;
A processing step of performing processing according to the instruction received by the instruction receiving step;
A completion notification transmission step of transmitting a notification that the processing is completed to the wireless communication relay device when the processing according to the instruction is completed by the processing step;
A wireless communication method comprising:   A wireless communication relay program causing a computer to execute the wireless communication relay method according to claim 16.   A wireless communication program causing a computer to execute the wireless communication method according to claim 17.

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