JP2009302681A - Communication relay system, communication relay method, gateway device, and communication device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform communications which assure security nature even if communication devices which perform communications do not have the same communication protocol. <P>SOLUTION: A communication relay system is composed so that a registration unit of a gateway device registers a cooperation object device which is a communication device to be a cooperative object with the gateway device, a substitute reception unit of the gateway device receives a connection request from another communication device instead of the registered cooperation object device, a relay unit of the gateway device relays communication between another communication device which receives the connection request and the cooperation object device, and a gateway cooperation application of the cooperation object device carries out communication control of an application program which operates on the cooperation object device with the another communication device through the gateway device. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a communication relay system, a communication relay method, a gateway device, and a communication device that include a gateway device that relays communication between communication devices, and in particular, communication devices that perform communication do not have the same communication protocol. Even in this case, the present invention relates to a communication relay system, a communication relay method, a gateway device, and a communication device that can perform communication with security.

  In recent years, it has become common for automobiles to be equipped with in-vehicle devices capable of viewing music and video, displaying navigation information, and the like. In addition, such an in-vehicle device communicates with a communication device such as a portable terminal device such as a mobile phone or PDA (Personal Digital Assistant) carried by a passenger or a wireless microphone, and transmits and receives data between the communication device and the in-vehicle device. It has become like this.

  Thus, when communicating between communication devices, a wireless communication standard called Bluetooth (registered trademark) is well known. Bluetooth (registered trademark) is a wireless communication standard that uses a frequency band of 2.4 GHz, and wireless communication within a radius of several tens of meters is possible. Note that Patent Document 1 discloses a communication technique using Bluetooth (registered trademark).

  Since Bluetooth (registered trademark) is used for communication between various communication devices, a Bluetooth profile (hereinafter simply referred to as “profile”), which is a protocol established for each type of communication device, is standardized. . For example, there are many profiles such as HSP (Headset Profile) corresponding to hands-free calling using a headset or the like, and A2DP (Advanced Audio Distribution Profile) for transmitting music to headphones.

JP 2004-40779 A

  However, when performing communication using the “profile” described above, it is necessary that the communication devices to communicate with have the same profile. For this reason, there is a problem that communication devices connectable to the in-vehicle device are limited to those having the same profile as the profile of the in-vehicle device.

  In addition, when performing communication using Bluetooth (registered trademark), it is necessary to include a procedure for establishing a communication link called “pairing” between communication devices. There is also a problem that the security of the above-described in-vehicle device is lowered because of the exchange.

  For these reasons, even when the in-vehicle device and other communication devices do not have the same profile, how to perform communication while ensuring security is a major issue.

  The present invention has been made to solve the above-described problems caused by the prior art, and ensures security even when the in-vehicle device and other communication devices do not have the same profile. It is an object of the present invention to provide a communication relay system, a communication relay method, a gateway device, and a communication device that can perform communication.

  In order to solve the above-described problems and achieve the object, the present invention is a communication relay system including a gateway device that relays communication between communication devices, and the gateway device is a target to cooperate with the gateway device. A registration unit for registering a cooperation target device indicating a communication device, a proxy reception unit for receiving a connection request from another communication device instead of the cooperation target device registered by the registration unit, and a connection request by the proxy reception unit Relay means for relaying communication between the other communication device and the cooperation target device, and the cooperation target device transmits an application program that operates on the cooperation target device via the gateway device. It is characterized by comprising communication control means for controlling to communicate with other communication devices.

  In addition, the present invention is a communication relay method including a gateway device that relays communication between communication devices, in which the gateway device registers a cooperation target device that is a communication device to be linked with the gateway device. A proxy reception step in which the gateway device receives a connection request from another communication device instead of the cooperation target device registered in the registration step, and the gateway device receives a connection request in the proxy reception step. A relay step of relaying communication between the other communication device and the cooperation target device that has been accepted, and an application program in which the cooperation target device operates on the cooperation target device via the gateway device. And a communication control step for controlling to communicate with the communication device.

  Further, the present invention is a gateway device that relays communication between communication devices, registered with a registration unit that registers a cooperation target device indicating a communication device to be linked with the gateway device, and registered by the registration unit A proxy accepting unit that accepts a connection request from another communication device instead of the cooperation target device, and a relay that relays communication between the other communication device whose connection request is accepted by the proxy accepting unit and the cooperation target device Means.

  The present invention is also a communication device that communicates with another communication device, such that an application program that operates on the communication device communicates with the other communication device via a gateway device to which the communication device is registered. And a communication control means for controlling.

  According to the present invention, the gateway device registers a cooperation target device indicating a communication device to be linked with the gateway device, and the gateway device requests a connection from another communication device instead of the registered cooperation target device. The gateway device relays communication between the other communication device for which the connection request is accepted and the cooperation target device, and the cooperation target device transmits the application program that operates on the cooperation target device via the gateway device. Because it is controlled to communicate with other communication devices, even if communication devices that perform communication do not have the same communication protocol, it is possible to perform communication that ensures security Play.

  Exemplary embodiments of a communication relay system and a communication relay method according to the present invention will be described below in detail with reference to the accompanying drawings. In the following, after describing the problems of the prior art and the outline of the communication relay method according to the present invention with reference to FIGS. 1 to 3, implementation of the communication relay system to which the communication relay method according to the present invention is applied. An example will be described.

  First, problems of the prior art will be described with reference to FIG. FIG. 1 is a diagram illustrating a problem of the prior art. Note that (1) in the figure shows a case where communication between applications (application programs) installed in each communication device is possible, and (2) in the same figure shows between applications installed in each communication device. Each of these cases is shown when communication is impossible.

  In (1) of the figure, the communication device (communication device shown on the left side of the figure) is equipped with an app α corresponding to the Bluetooth profile A (hereinafter, “Bluetooth profile” is referred to as “BT profile”). It is assumed that In addition, the ownership profile of the Bluetooth communication unit (hereinafter referred to as “BT communication unit”) of this communication device is assumed to be BT profile A.

  In addition, an application α corresponding to the BT profile A is installed in another communication device (the communication device shown on the right side of the figure). The possession profile of the BT communication unit of this communication device is BT profile A. It shall be.

  In such a case, since the BT profile supported by the application installed in each communication device and the ownership profile of the BT communication unit of each communication device all match, the application α of the communication device and other communication Communication with the app β of the device is possible.

  On the other hand, in the case shown in (2) of the figure, the application α installed in the communication device (the communication device shown on the left side of the figure) and another communication device (the communication device shown on the right side of the figure) Cannot communicate with the application β installed in the. Specifically, both the application α and the application β correspond to the BT profile A, but the ownership profile of the BT communication unit of the communication device is only the BT profile B.

  Here, the application α communicates with the BT communication unit assuming that the lower-level BT communication unit corresponds to the BT profile A. However, the lower-level BT communication unit does not support the BT profile A. The communication unit cannot correctly relay communication between the application α / application β.

  Note that BT communication units of other communication devices (communication devices shown on the right side of the figure) correspond to BT profile A and BT profile B. However, even when this BT communication unit attempts to communicate with a communication device (communication device shown on the left side of the figure) with the same BT profile A as the application β, the communication device (shown on the left side of the figure) Since the BT communication unit of the communication device is not compatible with the BT profile A, communication cannot be performed.

  As described above, conventionally, communication between applications can be performed only between communication devices including a BT communication unit and an application corresponding to the same BT profile. For this reason, there is a problem that communication devices that can communicate with a specific communication device are limited. Since each BT communication unit directly exchanges information regarding its own communication device when performing pairing, there is a problem that such information may be misused by unauthorized communication devices.

  Therefore, in the communication relay method according to the present invention, the above-described problems (problems) of the related art are solved by using a gateway device that cooperates with a specific communication device. Below, the outline | summary of the communication relay method based on this invention is demonstrated using FIG. 2 and FIG.

  FIG. 2 is a diagram showing a first outline of the communication relay method according to the present invention. As shown in the figure, in the communication relay method according to the present invention, the cooperation target device 100 includes the gateway device 10 and the gateway cooperation application 20 installed in the continuous mobile device 100 representing a communication device that cooperates with the gateway device 10. / Relay communication between other communication devices 200. Note that the gateway device 10 includes the BT communication unit 11, the cooperation target device 101 includes the BT communication unit 101, and the other communication device 200 includes the BT communication unit 201, and communication is performed via these BT communication units. Is called.

  The gateway cooperation application 20 of the cooperation target device 100 is located between the BT communication unit 101 and the application 102, relays data exchange between the application 102 / BT communication unit 101, and communicates with the gateway device 10. To control. It is assumed that the application 202 exists above the BT communication unit 201 in the other communication device 200.

  In the communication relay method according to the present invention, the gateway device 10 is paired with the cooperation target device 100 (see (1) in the figure), and the gateway device 10 paired with the cooperation target device 100 is replaced with the cooperation target device 100. The other communication device 200 is paired (see (2) in the figure). Then, the gateway device 10 relays communication data between the cooperation target device 100 and the other communication device 200 (see (2) in the figure).

  As described above, in the relay method according to the present invention, by using the gateway device 10, the cooperation target device 100 and the other communication device 200 do not communicate directly. Therefore, it is possible to prevent information related to the cooperation target device 100 from being acquired by an unauthorized communication device.

  Next, an outline of communication relay performed by the gateway device 10 and the gateway cooperation application 20 will be described with reference to FIG. FIG. 3 is a diagram showing an outline 2 of the communication relay method according to the present invention. Note that FIG. 3 corresponds to the case of (2) in FIG. 1 in which communication between applications cannot be performed conventionally.

  As illustrated in FIG. 3, the gateway cooperation application 20 limits the gateway cooperation function such as notifying the gateway device 10 of the BT profile used by the application α and the communication target of the cooperation target device 100 only to the gateway device 10. Connection limit function. Details of each function will be described later with reference to FIG.

  Further, the gateway device 10 relays communication between the pairing proxy function for pairing with another communication device 200 instead of the cooperation target device 100 and the application α102 of the cooperation target device 100 / the application β202 of the other communication device 200. And a profile update function for updating the BT profile owned by the BT communication unit 11 of the gateway device 10. Details of each function will be described later with reference to FIG.

  The gateway cooperation application 20 notifies the gateway device 10 of the BT profile A used by the application α. Note that the gateway cooperation application 20 notifies the BT communication unit 101 of the data corresponding to the BT profile A received from the application α. Communication between the BT communication unit 101 / gateway device 10 of the cooperation target device 100 is performed using the BT profile B, and the gateway device 10 communicates with other communication devices 200 using the BT profile A used by the application α. Do.

  Communication between the BT communication unit 11 of the gateway device 10 and the BT communication unit 201 of another communication device 200 is performed using the BT profile A. In this way, even in an environment where communication was impossible in the past (see (2) in FIG. 1), communication between applications can be performed by using the communication relay method according to the present invention.

  Below, the Example about the communication relay system to which the communication relay method demonstrated using FIG. 2 and FIG. 3 is applied is described using FIGS. In the following, the case where the in-vehicle device is the device to be linked, that is, the case where this communication relay system is used for communication between each communication device in the vehicle, the communication device installed indoors or outdoors is the target of linkage. It is good also as a device.

  FIG. 4 is a diagram illustrating a configuration of the communication relay system 1 according to the present embodiment. The communication relay system 1 includes a gateway device 10 and a gateway cooperation application 20 installed in the in-vehicle device (cooperation target device) 100.

  The gateway device 10 includes a BT communication unit 11, a communication unit 12, a control unit 13, and a storage unit 14. The control unit 13 further includes a profile acquisition unit 13a, a registration unit 13b, a relay unit 13c, and a proxy reception unit 13d. The storage unit 14 includes a communication profile 14a, cooperation target device information 14b, and the like. The allowable information 14c is stored. In the storage unit 14, the memory is configured by a storage device such as a hard disk device.

  The gateway device 10 performs Bluetooth communication with the in-vehicle device (cooperation target device) 100 and other communication devices 200 via the BT communication unit 11 and is provided on a network such as the Internet via the communication unit 12. Communicate with other server devices.

  The BT communication unit 11 is a communication device that performs Bluetooth communication with the in-vehicle device (cooperation target device) 100 and another communication device 200. The BT communication unit 11 performs pairing with the in-vehicle device (cooperation target device) 100 by searching for communication devices in the communication range when the operation starts. Once pairing with the in-vehicle device (cooperation target device) 100 is performed, the second and subsequent pairings are automatically performed. Further, the BT communication unit 11 performs pairing with another communication device 200 as a substitute for the in-vehicle device (cooperation target device) 100 after cooperating with the in-vehicle device (cooperation target device) 100.

  The communication unit 12 is a device that communicates with a server device provided on a network such as the Internet, and performs a process of passing a communication profile newly acquired from the server device to the profile acquisition unit 13a of the control unit 13. In this way, by acquiring a new communication profile via the network, the gateway device 10 can always use the latest profile.

  The control unit 13 registers information related to the in-vehicle device (cooperation target device) 100 to be linked and performs a process of relaying communication between the registered in-vehicle device (cooperation target device) 100 / the other communication device 200. It is a processing unit. The control unit 13 is also a processing unit that performs processing for causing the BT communication unit 11 to use the communication profile 14 a acquired via the communication unit 12.

  The profile acquisition unit 13 a is a processing unit that performs processing for storing the communication profile 14 a acquired via the communication unit 12 in the storage unit 14. Here, the communication profile 14a indicates a profile such as HSP (Headset Profile) or A2DP (Advanced Audio Distribution Profile). Note that the communication profile 14 a stored in the storage unit 14 is used by the BT communication unit 11.

  The registration unit 13b is a processing unit that performs processing for storing information related to the in-vehicle device (cooperation target device) 100 acquired via the BT communication unit 11 in the storage unit 14 as cooperation target device information 14b. Here, the cooperation target device information 14b is information including a “fixed name”, a PIN (Personal Identification Number) code, and the like disclosed by the in-vehicle device (cooperation target device) 100. Note that the cooperation target device information 14b stored in the storage unit 14 by the registration unit 13b is used when the proxy reception unit 13d performs pairing with another communication device 200.

  After the pairing between the in-vehicle device (cooperation target device) 100 / gateway device 10 and the gateway device 10 / other communication device 200 is completed, the relay unit 13c is connected to the in-vehicle device (cooperation target device) 100 / other communication device. It is a processing unit that performs processing for relaying communication between 200. In addition, the relay unit 13 c also performs a process of restricting data from another communication device 200 toward the in-vehicle device (cooperation target device) 100 in order to improve the security of the in-vehicle device (cooperation target device) 100.

  Specifically, only when data from another communication device 200 to the in-vehicle device (cooperation target device) 100 is response data of data relayed from the in-vehicle device (cooperation target device) 100 to the other communication device 200. The response data is relayed to the in-vehicle device (cooperation target device) 100. Further, when the condition included in the permissible information 14c is met, it is relayed to the in-vehicle device (cooperation target device) 100 even if it is not response data.

  Here, the permissible information 14c is information including an identifier for identifying another safe communication device 200 and a safe BT profile identifier used by the other communication device 200. And if the relay part 13c is the data from the other safe communication apparatus 200 contained in the permissible information 14c, even if it is not the response data to the vehicle-mounted device (cooperation target device) 100, the vehicle-mounted device Relay to (cooperation target apparatus) 100.

  In addition, if the data from the other communication device 200 is data using a BT profile included in the permission information 14c, even if it is not response data to the in-vehicle device (cooperation target device) 100, the in-vehicle device ( Relay to the cooperation target device 100.

  Note that even if the relay unit 13c has a computer virus elimination function and data from other communication devices 200 is response data to the in-vehicle device (cooperation target device) 100, the data includes computer virus. In some cases, such data may be discarded. Further, information regarding new computer viruses may be updated as needed via the communication unit 12.

  The proxy reception unit 13 d is a processing unit that performs pairing processing with another communication device 200 instead of the in-vehicle device (cooperation target device) 100 based on the cooperation target device information 14 c in the storage unit 14. The proxy accepting unit 13d discloses the fixed name of the in-vehicle device (cooperation target device) 100 to the other communication device 200 as the fixed name of the gateway device 10.

  By doing in this way, the other communication apparatus 200 misidentifies as if the gateway apparatus 10 was the vehicle-mounted apparatus (cooperation target apparatus) 100, and communicates. The proxy accepting unit 13d also performs a process of notifying the other communication device 200 of the PIN code of the loading device (cooperation target device) 100 as the PIN code of the gateway device 10.

  Next, the gateway cooperation application 20 mounted on the in-vehicle device (cooperation target device) 100 will be described. The gateway cooperation application 20 is a computer program installed on a communication device that cooperates with the gateway device 10. A communication device in which the gateway cooperation application 20 is installed can receive a relay service using the gateway device 10 as a communication window.

  The gateway cooperation application 20 further includes a communication control unit 21. The communication control unit 21 controls communication between the host application (see “application α” in FIG. 3) installed in the in-vehicle device (cooperation target device) 100 and the BT communication unit 101 and cooperates with the gateway device 10. Is a processing unit.

  Specifically, the communication control unit 21 transmits the BT profile type, the transmission data itself, and the transmission destination regarding the transmission data received from the upper application to the gateway device 10 via the BT communication unit 101. Upon receiving such transmission data, the gateway device 10 determines whether or not transmission data can be transmitted to the designated transmission destination with the type of the designated BT profile, and when the transmission is possible. The transmission data is relayed to the other communication device 200.

  Next, the outline of the cooperation processing between the gateway cooperation application 20 / gateway device 10 will be described with reference to FIG. FIG. 5 is a diagram showing an overview of the cooperation processing between the gateway cooperation application 20 and the gateway device 10. As shown in the figure, the gateway cooperation application 20 transmits a fixed name of the cooperation target apparatus 100, and the gateway apparatus 10 acquires the fixed name (see (1) in the figure).

  Subsequently, the gateway cooperation application 20 instructs the BT communication unit 101 of the cooperation target apparatus 100 to change to the search acceptance refusal mode (see (2) in the figure). In this way, it is possible to prohibit other communication devices 200 from directly communicating with the cooperation target device 100 that cooperates with the gateway device 10.

  Further, the gateway device 10 publishes the fixed name of the cooperation target device 100 to the other communication device 200 as the fixed name of the gateway device 10 (see (3) in the figure). Then, the other communication device 200 misidentifies the gateway device 10 as the cooperation target device 100 and connects it (see (4) in the figure). That is, the other communication device 200 does not need to recognize the presence of the gateway device 10.

  Next, a processing procedure executed by the in-vehicle device (cooperation target device) 100 will be described with reference to FIG. FIG. 6 is a flowchart illustrating a processing procedure executed by the in-vehicle device (cooperation target device) 100. As shown in the figure, the in-vehicle device (cooperation target device) 100 activates the gateway cooperation application 20 (step S101).

  Subsequently, the communication control unit 21 of the gateway cooperation application 20 determines whether or not pairing between the gateway device 10 and another communication device 200 has been established (step S102). In step S102, Yes), the BT communication unit 101 is instructed to change to the search acceptance refusal mode (step S103). In addition, when the determination condition of step S102 is not satisfied (step S102, No), the processing after step S102 is repeated.

  Following the processing in step S103, it is determined whether or not the pairing between the gateway device 10 and the other communication device 200 has been released (step S104). If the pairing has been released (step S104, Yes), The BT communication unit 101 is instructed to change to the search acceptable mode (step S105), and the processes after step S102 are repeated.

  On the other hand, when the determination condition of step S104 is not satisfied (step S104, No), it is determined whether the in-vehicle device (cooperation target device) 100 transmits data (step S106), and the in-vehicle device (cooperation target) When the device 100 transmits data (step S106, Yes), the data is transmitted to the gateway device 10 (step S107), and the processing after step S104 is repeated. Note that if the in-vehicle device (cooperation target device) 100 does not transmit data (No at Step S106), the processing after Step S104 is repeated.

  Next, a processing procedure executed by the gateway device 10 will be described with reference to FIG. FIG. 7 is a flowchart showing a processing procedure executed by the gateway device 10. As shown in the figure, the gateway device 10 starts the operation of the BT communication unit 11 (step S201), and the BT communication unit 11 executes the in-range terminal search process (step S202).

  When the cooperation target device 100 enters the service area (step S203, Yes), pairing with the cooperation target device 100 is performed (step S204). In addition, when the determination condition of step S203 is not satisfied (step S203, No), the processing after step S202 is repeated.

  Following step S204, the registration unit 13b acquires a fixed name from the cooperation target device 100 (step S205), and registers the acquired fixed name in the storage unit 14 as the fixed name of the gateway device 10 (step S206). Subsequently, it is determined whether or not the cooperation with the cooperation target device has been released (step S207). If the cooperation is released (step S207, Yes), the registered fixed name is discarded (step S209). Then, the processing after step S202 is repeated.

  If the determination condition in step S207 is not satisfied (step S207, No), the process during cooperation is performed (step S208), and the processes after step S207 are repeated. Details of the in-cooperation process shown in step S208 will be described later with reference to FIG.

  Next, a processing procedure when the gateway device 10 is paired with another communication device 200 will be described with reference to FIG. FIG. 8 is a flowchart illustrating a processing procedure executed when the gateway device 10 performs pairing with another communication device 200. As shown in the figure, when the proxy accepting unit 13d receives a pairing start request from another communication device 200 (step S301), the proxy receiving unit 13d sends another pairing start request transmission source to the other communication device 200. Then, an OK signal is returned (step S302).

  Subsequently, if a PIN code is received from another communication device 200 (step S303), a PIN code authentication OK is returned (step S304), and the PIN code received in step S303 is used as the PIN code of the gateway device 10. It transmits to the other communication apparatus 200 (step S305).

  If the authentication in the other communication device 200 is completed (step S306, Yes), the pairing with the other communication device 200 is completed (step S307), and the process ends. Note that if the authentication in the other communication device 200 has not been completed yet (No at Step S306), the processes after Step S306 are repeated. Thus, the gateway device 10 can eliminate troublesome PIN code input processing by returning and establishing pairing with another communication device 200 in an echo format.

  Next, a detailed processing procedure of the linked processing shown in FIG. 7 will be described with reference to FIG. FIG. 9 is a flowchart showing a detailed procedure of the in-cooperation process shown in FIG. As shown in the figure, if the relay unit 13c of the gateway apparatus 10 receives data (step S401, Yes), it is determined whether or not the transmission source is the cooperation target apparatus 100 (step S402). If data has not been received (No at step S401), the processing after step S401 is repeated.

  If the transmission source is the cooperation target device 100 (step S402, Yes), the transmission destination and the usage profile are confirmed (step S403). If the connection is successful using the transmission destination and the usage profile (step S404, Yes), data is transmitted to the transmission destination (step S405), and the process is terminated. If the determination condition in step S404 is not satisfied (No in step S404), a transmission failure is notified to the cooperation target device 100 (step S406), and the process ends.

  On the other hand, when the transmission source is not the cooperation target device 100 (step S402, No), that is, when the transmission source is another communication device 200, the data received in step S401 is a response to the cooperation target device 100. It is determined whether it is data (step S407). If it is response data (step S407, Yes), the received data is transmitted to the cooperation target device 100 (step S409), and the process is terminated.

  If the determination condition of step S407 is not satisfied (step S407, No), it is determined whether or not the allowable condition included in the allowable information 14c is met (step S408). If the allowable conditions are met (step S408, Yes), the received data is transmitted to the cooperation target device 100 (step S409), and the process is terminated. On the other hand, if the determination condition in step S408 is not satisfied (step S408, No), the received data is discarded (step S410), and the process ends.

  As described above, in this embodiment, the registration unit of the gateway device registers the cooperation target device, which is a communication device to be linked with the gateway device, and the proxy reception unit of the gateway device registers the cooperation target registered. Accepts a connection request from another communication device instead of the device, and the relay unit of the gateway device relays communication between the other communication device for which the connection request is accepted and the cooperation target device, and the gateway cooperation application of the cooperation target device However, the communication relay system is configured to control communication of the application program operating on the cooperation target device with the other communication device via the gateway device. Therefore, even when the communication devices that perform communication do not have the same communication protocol, it is possible to perform communication that ensures security.

  As described above, the communication relay system, the communication relay method, the gateway device, and the communication device according to the present invention are useful for communication relay between an in-vehicle device mounted on a vehicle and another communication device. This is suitable for ensuring security. The communication relay system, communication relay method, gateway device, and communication device according to the present invention can also be applied to communication relay between communication devices installed indoors or outdoors.

It is a figure which shows the problem of a prior art. It is a figure which shows the outline | summary 1 of the communication relay method which concerns on this invention. It is a figure which shows the outline | summary 2 of the communication relay method which concerns on this invention. It is a block diagram which shows the structure of the communication relay system which concerns on a present Example. It is a figure which shows the outline | summary of the cooperation process between a gateway cooperation application / gateway apparatus. It is a flowchart which shows the process sequence which a cooperation target apparatus performs. It is a flowchart which shows the process sequence which a gateway apparatus performs. It is a flowchart which shows the process sequence performed when a gateway apparatus performs pairing with another communication apparatus. It is a flowchart which shows the detailed procedure of the process in cooperation shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Communication relay system 10 Gateway apparatus 11 BT communication part 12 Communication part 13 Control part 13a Profile acquisition part 13b Registration part 13c Relay part 13d Proxy acceptance part 14 Storage part 14a Communication profile 14b Cooperation object apparatus information 14c Permissible information 20 Gateway cooperation application 21 Communication control unit 100 Cooperation target device 101 BT communication unit 102 Application 200 Other communication device 201 BT communication unit 202 Application

Claims (13)

A communication relay system including a gateway device that relays communication between communication devices,
The gateway device
Registration means for registering a cooperation target device indicating a communication device to be linked with the gateway device;
Proxy accepting means for accepting a connection request from another communication device instead of the cooperation target device registered by the registration means;
Relay means for relaying communication between the other communication device whose connection request has been accepted by the proxy accepting means and the cooperation target device;
The cooperation target device is:
A communication relay system comprising communication control means for controlling an application program operating on the cooperation target device to communicate with the other communication device via the gateway device. The communication control means of the cooperation target device is:
Notifying the gateway device of a communication profile used by the application program,
The relay means of the gateway device is
The communication relay system according to claim 1, wherein communication is performed with the other communication device using a communication profile notified by a communication control unit of the cooperation target device. The communication control means of the cooperation target device is:
The communication relay system according to claim 1 or 2, wherein when the connection with the gateway device is established, the cooperation target device is not allowed to directly communicate with the other communication device. The gateway device registration means includes:
Register a fixed name for identifying the cooperation target device as a fixed name of the gateway device,
The gateway device proxy accepting means,
The communication relay system according to claim 1, wherein the fixed name of the gateway device is disclosed to the other communication device. The gateway device registration means includes:
The communication relay system according to claim 4, wherein the fixed name of the gateway device is discarded when the connection with the cooperation target device is disconnected. The gateway device registration means includes:
Register the PIN code of the cooperation target device as the PIN code of the gateway device,
The gateway device proxy accepting means,
6. When a connection request is received from the other communication device, pairing with the other communication device is performed using the PIN code of the gateway device. The communication relay system described. The relay means of the gateway device is
The communication relay according to any one of claims 1 to 6, wherein when the communication data received from the other communication device is not response data to the cooperation target device, the communication data is discarded. system. The relay means of the gateway device is
When the other communication device is registered in advance as a communication permission target, even if the communication data received from the other communication device is not response data to the cooperation target device, the communication data is The communication relay system according to claim 7, wherein relay is performed to the cooperation target device. The relay means of the gateway device is
When the predetermined communication profile is registered in advance as a communication permission profile, the communication data received from the other communication device communicating with the communication permission profile is not response data to the cooperation target device. The communication relay system according to claim 7 or 8, wherein the communication data is relayed to the cooperation target device. The gateway device is
The communication relay system according to any one of claims 1 to 9, further comprising communication profile acquisition means for acquiring a new communication profile via a network. A communication relay method including a gateway device that relays communication between communication devices,
A registration process in which the gateway device registers a cooperation target device that is a communication device to be linked with the gateway device;
The gateway device accepts a connection request from another communication device instead of the cooperation target device registered by the registration step;
The gateway device relays the communication between the other communication device for which a connection request has been accepted by the proxy acceptance step and the cooperation target device; and
A communication relay method comprising: a communication control step in which the cooperation target device controls an application program operating on the cooperation target device to communicate with the other communication device via the gateway device. A gateway device that relays communication between communication devices,
Registration means for registering a cooperation target device indicating a communication device to be linked with the gateway device;
Proxy accepting means for accepting a connection request from another communication device instead of the cooperation target device registered by the registration means;
A gateway device comprising: a relay unit that relays communication between the other communication device whose connection request is received by the proxy reception unit and the cooperation target device. A communication device that communicates with other communication devices,
A communication apparatus comprising: communication control means for controlling an application program operating on the communication apparatus to communicate with the other communication device via a gateway apparatus in which the communication apparatus is registered.