JP4561840B2 - Wireless communication method, wireless communication apparatus, and wireless communication system - Google Patents

Description

  The present invention relates to a wireless communication device that forms a network among a plurality of wireless communication devices, for example.

  In recent years, as a method of connecting a plurality of personal computers as a local area network (LAN), a method of connecting a wireless communication device to a personal computer or the like and constructing a wireless LAN with the plurality of personal computers is generally known. ing.

  Furthermore, a method of constructing a personal area network (PAN) centering on personally owned portable device devices and exchanging data with each other within a communication area closer than the LAN is being considered.

  In this PAN, it is assumed that in addition to a personal computer, consumer devices such as a camcorder device, a VCR (Video Cassette Recorder) device, and a monitor device are also taken into the network.

  In these wireless PANs, authentication information must be exchanged between devices in advance in order to identify wireless communication apparatuses and device devices connected to the wireless network.

  For example, in a wireless PAN conforming to the communication standard IEEE 802.15.3, an authentication operation called “authentication” is defined, and a device that has joined an PAN is encrypted with another device. It is envisaged to exchange device link information such as digitization information.

  As a method for exchanging device link information here, a method of exchanging information as a single link in two directions between two devices is generally used.

  As a prior application of the present applicant, there is Japanese Patent Application No. 2001-289863. In this prior application, an identification number (ID) of a transmitting device is registered in the receiving device in order to operate the transmitting device and the receiving device on a peer-to-peer basis.

  However, in the conventional authentication operation called “Authentication”, if the devices with the same application are not processed, the device link information necessary for these communications cannot be exchanged, and the data is exchanged. There was an inconvenience that it was not possible.

  That is, when devices having different applications are connected to each other and data is transmitted / received, it is impossible to determine what data has been sent to each other, and there is a problem in that data transmission itself is wasted.

  Further, if the device link information cannot be exchanged between devices intended by the user, a malicious device may be incorporated into the wireless network and personal information may be leaked.

  For this reason, the authentication operation called “authentication” has the disadvantage that only the device approved by the user of the wireless network must exchange device link information with the device that has entered the wireless network. there were.

  In an authentication operation called “authentication” standardized in a wireless PAN compliant with the communication standard IEEE 802.15.3, it is determined which wireless communication device and which wireless communication device must start the authentication operation. It was necessary to clarify.

  Further, since the conventional authentication operation is mainly focused on building a wireless network between computer systems, the direction in which data input devices and output devices exchanged between applications are sent data to each other. Authentication operation was performed without being conscious of.

  For this reason, if the authentication operation with a malicious device succeeds and is incorporated into the network, there is a disadvantage that content unintended by the user can be easily leaked or browsed.

  Another problem is that malicious content such as computer viruses can be sent into the network.

  Therefore, the present invention has been made in view of such a point, and a device that operates with the same application intended by the user (user) exchanges device link information to create a safe (secure) wireless network. It is an object to provide a wireless communication device to be constructed.

  It is another object of the present invention to provide a wireless communication method in which devices intended by users (users) exchange device link information with a simple operation.

  It is another object of the present invention to provide a wireless communication method that cannot easily extract content that the user does not want to leak even when a malicious device is authenticated by the network.

The wireless communication method of the present invention is an input / output link information setting step for determining a link direction relationship in a wireless communication device from a state indicating an input / output relationship of data in an application that is currently operating in a device that executes the application, A wireless communication device connected to a device that executes the same application as that of the application exchanges predetermined wireless signals with each other by operating the registration switch of the wireless communication device, and detects a registration operation for registering the partner wireless communication device. When the registration operation is performed using the wireless communication transmitted from the wireless transmission unit as the same wireless signal as the application data exchange, the input / output link information is exchanged with other wireless communication devices. I / O information exchange step exchanged between Among other wireless communication apparatus connected to the device rows, in which a one-way device link setting step of setting a one-way device links each other.

Therefore, according to the present invention, the following operations are performed.
In a wireless communication device connected to a device that executes an application, a one-way device link relationship is established between the device that executes the same application and another wireless communication device that is connected while clearly indicating the data input / output relationship. sign up.

  Further, the user determines an application of a device connected to the wireless communication apparatus, and performs processing for exchanging device link information between devices.

  In the wireless communication method of the present invention, in the registration operation detecting step, a predetermined signal is detected after detecting a registration signal by operating a registration switch provided in one of the wireless communication devices for which input / output link information is set. A registration signal detection step for detecting a registration signal by operating a registration switch of the other wireless communication device within the registration information reception time, and input / output of the one wireless communication device after a predetermined registration information reception time has elapsed A presence notification step for notifying the other wireless communication device of presence information including link information, and when the other wireless communication device receives the presence notification, the other wireless communication device responds to the input / output link information with each other. A registration request exchange step for exchanging and transmitting registration requests for registering the link relation.

Therefore, according to the present invention, the following operations are performed.
Device link information between wireless communication devices that are equipped with a link registration switch or link setting function that can be set by the user in the wireless communication device connected to the device, and the user inputs a registration button provided in the wireless communication device And exchange information about security.

  By setting a link intended by the user (user) between the wireless communication devices that have entered the registration button within a predetermined time, a network based on the security intended by the user is constructed.

The radio communication apparatus according to the present invention is an input / output link information setting means for determining a link direction relation in a radio communication apparatus from a state indicating an input / output relation of data in an application that is currently operating in a device that executes the application. And a wireless communication device connected to a device that executes the same application as the application, a predetermined wireless signal is exchanged by operating a registration switch of the wireless communication device, and a partner wireless communication device is registered. When the registration operation is performed using the wireless communication transmitted from the wireless transmission unit as the same wireless signal as the application data exchange, the input / output link information is transferred between the detection unit and another wireless communication device. Connected to the input / output information exchange means exchanged with With another wireless communication device, in which a one-way device link setting means for setting a one-way device links each other.

Therefore, according to the present invention, the following operations are performed.
In order to transmit information between registered wireless communication devices, the specified encryption information is exchanged while clearly indicating the input / output relationship of the data according to the instruction of the application. The encrypted data is transmitted to register a one-way device link relationship with each other.

The wireless communication system of the present invention is set as input / output information for determining the link direction relationship in the wireless communication device from the state indicating the data input / output relationship in the currently operating application in the device executing the application. In order to register a partner wireless communication device by exchanging predetermined wireless signals with each other by activating a registration switch of the wireless communication device with a wireless communication device connected to a device that executes the same application as the application Information indicating the input or output relationship of data of a device that executes the same application as that of the application is detected between the device that executes the same application and another wireless communication device connected to the device. radio transmission section as the same wireless signal and data communication Replace with a radio communications sent, information indicating a radio communications device for setting an input or output unidirectional device link relationship with each other, the output or input relationship data of the device executing the same application as the application, the application Are exchanged between devices that execute the same application and other wireless communication devices connected to each other using wireless communication transmitted from the wireless transmission unit as the same wireless signal as the data communication of the application. And a wireless communication apparatus for setting a one-way device link relationship.

Therefore, according to the present invention, the following operations are performed.
In a wireless communication device connected to a device that executes an application, a link relationship is registered while clearly indicating an input / output relationship of data with each other between the device that executes the same application and another wireless communication device.

  In order to transmit information between registered wireless communication devices, predetermined encrypted information is exchanged according to an application instruction, and data encrypted with the encrypted information is transmitted when exchanging application data.

  Furthermore, by exchanging these pieces of information by designating the input / output direction of the application, information is not inadvertently exchanged with an unintended wireless communication apparatus.

  According to the present invention, different applications are executed by exchanging input / output information between devices that execute the same application and other wireless communication devices connected thereto, and registering device link relationships with each other. There is an effect that an unnecessary link between wireless communication devices can be eliminated.

  In addition, the user intends to use the registration method for registering the link relationship with each other by operating the registration switch of the other wireless communication device within a predetermined time after operating the registration switch provided in the wireless communication device. It is possible to easily establish a link relationship between devices.

  In addition, when the presence information of the own device is notified after a predetermined time has passed and the presence information of the other device is received, a device other than the one intended by the user can be easily obtained by a registration method for exchanging the registration request. It is possible to prevent it from being incorporated into a wireless network.

  In addition, if there is no response from another wireless communication device even if the presence notification / registration request is transmitted for a predetermined number of times, the user does not move to a series of device link registration operations. Unless a registration request is received from the intended wireless communication device, device link registration from the wireless communication device is prevented, and device link registration of the wireless communication device unintended by the user is not performed. There is an effect that it is possible to realize an operation that does not link the third party device. In addition, even when an abnormality occurs in a series of sequences, by interrupting registration, an effect of preventing devices not intended by the user from being incorporated into the wireless network can be obtained.

  Also, the presence notification / registration request of the wireless communication device is transmitted to the other wireless communication device, and in response to this, a plurality of registration request responses are received from other wireless communication devices, and the registration operation of which device link is In this case, the device link registration process is interrupted and the user's intention is interrupted because there is a possibility that any of the plurality of wireless communication devices is a device not intended by the user. If the device link registration of the wireless communication device is not performed, a malicious third party device tries to connect to the device link between the two devices specified by the user. There is an effect that a method for avoiding the operation can be realized.

  In addition, unnecessary wireless communication is performed between other wireless communication devices that execute different applications by exchanging predetermined encryption information between other wireless communication devices connected to a device that executes the same application. There is an effect that it is possible to obtain a method without performing the above.

  Also, when transmitting application information by exchanging predetermined encryption information while clearly indicating the input / output relationship of data between devices that execute the same application and other wireless communication devices, There is an effect that it is possible to realize a wireless communication method for transmitting encrypted data based on a data input / output relationship.

  In addition, there is an effect that it is possible to prevent unnecessary leakage of content using a connection link not intended by the user or a connection link other than the direction of data.

  In addition, by providing a function to establish a one-way link relationship with other wireless communication devices that execute the same application based on device-specific information, it is possible to construct a wireless link that is required by the user. A wireless communication device can be obtained, and the connection link unintended by the user can be eliminated.

  In addition, a wireless communication device capable of constructing a necessary wireless link by a data input / output interface based on device-specific information of a device connected to another wireless communication device is obtained, and connection links other than the data direction are excluded. There is an effect that can be.

  In addition, by registering the device link relationship with other wireless communication devices while clearly indicating the input / output relationship of the data of the devices connected to the wireless communication device, unnecessary directions that existed in conventional wireless networks It is possible to eliminate the link, and the consumer device can be efficiently incorporated into the wireless network.

  Embodiments of the present invention will be described below with reference to the drawings as appropriate.

FIG. 1 shows a configuration example of a wireless network applied to the present embodiment.
Here, it is assumed that the wireless communication apparatus connected to the personal computer 6 operates as the control station wireless communication apparatus 10 and the wireless network 100 is formed.

  The wireless network 100 includes a wireless communication device # 1: 11 connected to a monitor device 1 such as a television receiver, a wireless communication device # 2: 12 connected to a VCR (Video Cassette Recorder) device 2, and a camera integrated type. Wireless communication device # 3: 13 connected to a VTR (Video tape Recorder) device 3, wireless communication device # 4: 14 connected to a DVD (Digital Versatile disc) playback device 4, and wireless communication device connected to a printer output device 5 A state in which a wireless network is formed by the communication device # 5: 15 is shown.

FIG. 2 is a diagram showing an example of registration of a device link by an application according to the embodiment of the present invention.
Here, in the wireless network 100 shown in FIG. 1, a diagram is shown in which a link between devices is established by an application of a device connected to a wireless communication apparatus.

  In the monitor device 1, an input device link 21 from the VCR device 2, an input device link 22 from the camera-integrated VTR device 3, and an input device link 23 from the DVD playback device 4 are registered as input device links. .

  In the VCR device 2, an output device link 21 to the monitor device 1 and an output device link 24 to the camera-integrated VTR device 3 are registered as output device links, and an input device link 25 from the camera-integrated VTR device 3 is registered. Then, the input device link 26 from the DVD playback device 4 is registered as an input device link.

  In the camera-integrated VTR device 3, an output device link 22 to the monitor device 1 and an output device link 25 to the VCR device 2 are registered as output device links, and an input device link 24 from the VCR device 2 is further input device. Registered as a link.

  In the DVD playback device 4, an output device link 23 to the monitor device 1 and an output device link 26 to the VCR device 2 are registered as output device links.

  In the printer output device 5, an input device link 27 from the personal computer 6 is registered as an input device link.

  In the personal computer 6, an output device link 27 to the printer output device 5 is registered as an output device link.

FIG. 3 is a diagram illustrating a configuration example of a wireless communication apparatus according to the embodiment of the present invention.
The wireless communication device includes an interface 31 for exchanging information from devices connected to the wireless communication device, and a transmission buffer 32 for storing information received from applications of the devices, and converts the information into a wireless signal. A radio transmission unit 33 that converts and transmits data is provided, and an antenna 34 that transmits a radio signal converted according to predetermined access control.

  Further, the wireless communication device is provided with a wireless reception unit 35 for receiving a wireless signal from the antenna 34 according to predetermined access control and extracting information, and the wirelessly received information is transmitted to the application of the device via the interface 31. A reception buffer 36 is provided for storing information to be delivered to.

  Furthermore, this wireless communication apparatus includes a control unit 37 that controls a series of operations in the wireless communication apparatus applied to the embodiment of the present invention, and controls each operation unit in accordance with predetermined control.

  In the embodiment of the present invention, the control unit 37 includes a link registration switch 38 that performs a predetermined procedure according to a user input instruction and outputs a registration signal for establishing a device link. An information storage unit 39 for storing information indicating link connection information is connected.

  The control unit 37 includes a one-way link setting unit 37-1 for setting a one-way link connection between devices, device link information 39-1, security information 39-2, Information exchange unit 37-2 for exchanging device-specific (input / output) information 39-3, presence notification number unit 37-3 for setting the number of transmissions of its own presence notification, and registration for setting the reception time of registration information And an information reception time unit 37-4.

  The information storage unit 39 also stores device link information 39-1, security information 39-2, and device-specific (input / output) information 39-3.

FIG. 4 is a diagram illustrating a frame configuration example of the communication standard IEEE802.15.3.
In FIG. 4, in a frame period 41, a beacon B (Beacon B) output at a fixed frame period 41 from a communication station serving as a coordinator at the time of association for exchanging information prior to authentication to be performed in a peer-to-peer connected network. ) 42, contention access period CAP (Contention Access Period) 43 in which each communication station performs asynchronous communication with CSMA (Carrier Sense Multiple Access), and contention in which each communication station secures a reserved bandwidth and performs bandwidth reservation communication It has a free period CFP (Contention Free Period) 44.

FIG. 5 is a diagram showing a processing example of a device link registration operation according to the embodiment of the present invention.
This processing example shows a processing example in which link registration is performed between the wireless communication device (# 1) 11 and the wireless communication device (# 2) 12.

  Here, first, after a registration signal C1 by the operation of the registration switch 38 of the wireless communication device (# 1) 11 is input to the control unit 37 (information exchange unit 37-2) of the wireless communication device (# 1) 11, it continues. It is shown that a registration signal C2 by operating the registration switch 38 of the wireless communication device (# 2) 12 is input to the control unit 37 (information exchange unit 37-2) of the wireless communication device (# 2) 12.

  At this time, the control unit 37 (information exchanging unit 37-2) designates registration signals C1 and C2 by the operation of the registration switch 38 by designating from the application of the device to which each of the information input link and output link is connected. Is input, the control unit 37 (registration information reception time unit 37-4) is configured to perform reception processing by setting predetermined registration information reception times T1, T2, T3, T4, and T5.

  First, since the control unit 37 (information exchange unit 37-2) of the wireless communication device (# 1) 11 does not receive any signal before the registration information reception time T1 elapses, the wireless communication device (# 1) 11 The presence notification / registration request C3 is transmitted to the wireless communication apparatus (# 2) 12, and the registration information reception time T3 by the control unit 37 (registration information reception time unit 37-4) is set again to perform reception processing.

  The control unit 37 (information exchange unit 37-2) of the wireless communication device (# 2) 12 receives the presence notification / registration request C3 from the wireless communication device (# 1) 11 before the registration information reception time T2 elapses. Therefore, the registration request C4 of the wireless communication device (# 2) 12 is transmitted to the wireless communication device (# 1) 11, and the registration information reception time T4 by the control unit 37 (registration information reception time unit 37-4) is again transmitted. Set to to perform reception processing.

  The control unit 37 (information exchange unit 37-2) of the wireless communication device (# 1) 11 receives the registration request C4 from the wireless communication device (# 2) 12 until the registration information reception time T3 elapses. Therefore, the registration notification R1 of the wireless communication device (# 1) 11 is transmitted to the wireless communication device (# 2) 12, and the registration information reception time T5 by the control unit 37 (registration information reception time unit 37-4) is set again. To perform reception processing.

  Further, the control unit 37 (information exchange unit 37-2) of the wireless communication device (# 2) 12 sends the presence notification / registration request R1 from the wireless communication device (# 1) 11 until the registration information reception time T4 elapses. Therefore, the registration notification R2 of the wireless communication device (# 2) 12 is transmitted to the wireless communication device (# 1) 11, and the control unit 37 (one-way link setting unit 37) of the wireless communication device (# 2) 12 is transmitted. -1) sets a device link with the wireless communication apparatus (# 1) 11.

  The control unit 37 (information exchange unit 37-2) of the wireless communication device (# 1) 11 also receives the registration notification R2 of the wireless communication device (# 2) 12, and then controls the wireless communication device (# 1) 11. Unit 37 (one-way link setting unit 37-1) sets a device link with radio communication apparatus (# 2) 12.

  When the output device link shown in FIG. 2 is registered in the wireless communication apparatus, the encryption information used between the device links is exchanged as necessary in the registration notification. It is good also as a structure.

FIG. 6 shows an example of device link registration avoidance operation processing according to the embodiment of the present invention.
Here, in the wireless communication device (# 1) 11, the registration signal C11 by the operation of the registration switch 38 is input to the control unit 37 (information exchange unit 37-2) of the wireless communication device (# 1) 11, but wirelessly. This represents a state in which a registration signal generated by operating the registration switch 38 of the communication device (# 2) 12 is not input to the control unit 37 (information exchange unit 37-2) of the wireless communication device (# 2) 12.

  In this case, in the control unit 37 (information exchange unit 37-2) of the wireless communication device (# 1) 11 to which the registration signal C11 is input by operating the registration switch 38 of the wireless communication device (# 1) 11, the control unit 37. After the registration information reception time T11 by the (registration information reception time part 37-4) has elapsed, the presence notification / registration request C12 of the wireless communication device (# 1) 11 is transmitted, and the control part 37 (registration information reception time part 37) -4) after the registration information reception time T12 has passed, the presence notification / registration request C13 of the wireless communication device (# 1) 11 is transmitted, and the registration information is received by the control unit 37 (registration information reception time unit 37-4). After the time T13 has elapsed, the presence notification / registration request C14 of the wireless communication device (# 1) 11 is transmitted, and the presence notification / registration is performed a predetermined number of times by the control unit 37 (presence notification number unit 37-3). While sending a request C1n, because there is no response from another wireless communication apparatus, represents a state that does not transition to the registration operation of a series of device link shown in FIG. 5 described above.

  Thus, the device link registration from the wireless communication device (# 1) 11 is not performed unless the user receives a registration request from the wireless communication device (# 2) 12 intended for device link registration. Yes.

  That is, since the device link registration of the wireless communication apparatus not intended by the user is not performed, an operation that does not link with a malicious third party device can be realized.

FIG. 7 is an example showing an abnormal process of the device link registration operation according to the embodiment of the present invention.
Here, in the control unit 37 (information exchanging unit 37-2) of the wireless communication device (# 1) 11, after the registration signal C21 is input by operating the registration switch, the control unit 37 (registered information reception time unit 37-4) is input. ) After the registration information reception time T21 elapses, the presence notification / registration request C22 is transmitted to the wireless communication device (# 2) 12, and then both the wireless communication device (# 2) 12 and the wireless communication device (# 3) 13 are transmitted. Represents a case where the registration request C23 and the registration request C24 are returned almost simultaneously within the registration information reception time T22 by the control unit 37 (registration information reception time unit 37-4).

  In this case, in the control unit 37 (information exchange unit 37-2) of the wireless communication device (# 1) 11 to which the registration signal C21 is input by operating the registration switch 38 of the wireless communication device (# 1) 11, the control unit 37 After the registration information reception time T21 by the (registration information reception time unit 37-4) has passed, the presence notification / registration request C22 of the wireless communication device (# 1) 11 is transmitted to the wireless communication device (# 2) 12. Accordingly, there is a response to the registration request C23 and the registration request C24 from both the wireless communication device (# 2) 12 and the wireless communication device (# 3) 13, and it is determined which device link should be registered. It shows a state of not being connected.

  In this case, there is a possibility that either the wireless communication device (# 2) 12 or the wireless communication device (# 3) 13 is a device not intended by the user. Stop processing.

  That is, in the case where the user's intention is not clear, this indicates that the device link registration of the wireless communication apparatus is not performed.

  Thus, even when a malicious third party device tries to connect a device link between two devices designated by the user, a method for avoiding the operation can be realized.

FIG. 8 shows the configuration of the presence notification command according to the embodiment of the present invention.
In the presence notification command, a registration signal generated by operating the registration switch 38 is input to the control unit 37 (information exchange unit 37-2), and a predetermined registration information reception time by the control unit 37 (registration information reception time unit 37-4). This message is transmitted when a presence notification command from another wireless communication apparatus is not received before the elapse of time.

  This command includes a presence notification command identifier 81 indicating that information transmitted from another wireless communication device is a presence notification command, and self-communication device information to identify from which wireless communication device this command is transmitted. Source address 82, indicating to which wireless communication apparatus the command is transmitted (not set here because it is not specified), destination address 83, whether the device link according to the embodiment of the present invention is the input direction or the output direction It comprises an input / output link information discrimination 84 for identifying the error, and an error detection code 85 added to detect or correct an error in this command.

FIG. 9 shows a configuration of a registration request command according to the embodiment of the present invention.
This registration request command is a command that is returned to the device when the control unit 37 (information exchanging unit 37-2) of the wireless communication apparatus receives one presence notification command. May be configured using a minimum amount of necessary information.

  This command includes a registration request command identifier 91 indicating that information transmitted from another wireless communication device is a registration request command, and self-communication device information for identifying from which wireless communication device this command is transmitted. The transmission source address 92, the reception address 93 indicating that the registration request is returned to the wireless communication apparatus that has sent the presence notification command, whether the device link according to the embodiment of the present invention is in the input direction or the output direction And an input / output link information discrimination 94 for identifying the error, and an error detection code 95 added to detect or correct an error in this command.

FIG. 10 shows the configuration of a registration notification command according to the embodiment of the present invention.
This registration notification command is obtained when the control unit 37 (information exchanging unit 37-2) of the wireless communication apparatus receives one registration request command and when the registration notification command is received after making a registration request by itself. It is a command returned to the device, and is configured using at least the following information, and may be configured by adding other necessary information.

  This command includes a registration request command identifier 101 indicating that information transmitted from another wireless communication device is a registration notification command, and self-communication device information for identifying from which wireless communication device this command is transmitted. The transmission source address 102, the wireless communication apparatus to be registered as device link information is specified, and the reception destination address 103 indicating that the reply is made, and whether the device link according to the embodiment of the present invention is the input direction or the output direction are identified Input / output link information distinction 104, and an error detection code 105 added to detect or correct an error in this command.

FIG. 11 shows the configuration of the registration notification and the encryption information command according to the embodiment of the present invention.
The registration notification and the encryption information command are used in the same case as the registration notification command. When the connection link of the wireless communication device is an output device link, the control unit 37 (information exchange unit 37-2) of the wireless communication device This command is used to notify the input side device and the wireless communication apparatus of the encrypted information, and is configured using the following information at a minimum, and is configured by adding other necessary information. May be.

  A registration request indicating that this command is a registration notification and an encryption information command + encryption information command identifier 111, a source address 112 describing its own communication device information to identify from which wireless communication device this command was transmitted, Receiving address 113 indicating that a wireless communication apparatus to be registered as device link information is specified and indicating a reply, input / output link information for identifying whether the device link according to the embodiment of the present invention is in the input direction or the output direction Distinction 114, encryption target identification 115 used to identify the data payload subject to encryption processing between devices, actually used for data payload subject to encryption processing among multiple devices Encryption information 116, to detect or correct errors in this command And an error detection code 117 to be pressurized.

FIG. 12 shows a flowchart of the device link registration operation according to the embodiment of the present invention.
First, in step S1, the information exchanging unit 37-2 of the control unit 37 of the wireless communication apparatus determines that the input interface or the output interface of the device connected to the interface 31 of the wireless communication apparatus shown in FIG. It is determined whether or not a change has occurred in the connection status from, and if a change has occurred in the input / output interface, the process proceeds to step S2.

  In step S2, the information exchange unit 37-2 of the control unit 37 determines whether or not there is an input to the application of the connected device. If there is an input, the one-way direction of the control unit 37 in step S3. The link setting unit 37-1 sets an input link. Specifically, as shown in FIG. 2, the input device link is set by the application.

  Further, in step S4, the information exchanging unit 37-2 of the control unit 37 determines whether or not there is an output from the application of the device to be connected. The direction link setting unit 37-1 sets an output link. Specifically, as shown in FIG. 2, the output device link is set by the application.

  If it is determined in step S1 that the input / output interface has not changed, and the input link in step S3 and the output link in step S5 are set, the process proceeds to step S6.

  In step S6, the information exchange unit 37-2 of the control unit 37 determines whether or not a registration signal has been input by operating the device link registration switch 38 in the wireless communication apparatus. In S7, the presence notification count setting unit 37-3 of the control unit 37 shown in FIG. 3 sets the transmission count of the presence notification, and in step S8, the registration information reception time setting unit 37- of the control unit 37 shown in FIG. 4 sets the registration information reception time and receives the registration information.

  Further, in step S9, it is determined whether or not a presence notification has been received from another wireless communication apparatus. If there is a reception, the information is acquired in step S10. Specifically, as shown in FIG. 5, the information exchange unit 37-2 of the control unit 37 of the wireless communication device (# 2) 12 has the registration information reception time T2 by the registration information reception time setting unit 37-4. Before the elapse, the presence notification / registration request C3 from the wireless communication device (# 1) 11 is received, and the information exchange unit 37-2 of the control unit 37 of the wireless communication device (# 1) 11 sets the registration information reception time. The registration request C4 from the wireless communication device (# 2) 12 is received before the registration information reception time T3 by the unit 37-4 elapses.

  Thereafter, in step S11, it is determined whether or not the registration information reception time has elapsed. If not, the process returns to step S9 to continue the reception process. Specifically, as shown in FIG. 5, the information exchanging unit 37-2 of the control unit 37 of the wireless communication device (# 2) 12 sets the registration information reception time T2 by the registration information reception time setting unit 37-4. The information exchange unit 37-2 of the control unit 37 of the wireless communication device (# 1) 11 determines the progress of the registration information reception time T3 by the registration information reception time setting unit 37-4.

  If the registration information reception time has elapsed in step S11, it is determined in step S12 whether or not information has been received from another wireless communication device. If there is no reception, it is determined in step S13 that the number of presence notification transmissions has been exceeded, If it exceeds, the process is terminated. Specifically, as shown in FIG. 6, the information exchange of the control unit 37 of the wireless communication device (# 1) 11 to which the registration signal C11 is input by the operation of the registration switch 38 of the wireless communication device (# 1) 11 is performed. The unit 37-2 transmits the presence notification / registration request C12 of the wireless communication device (# 1) 11 after the registration information reception time T11 by the registration information reception time setting unit 37-4 has elapsed, and sets the registration information reception time. After the registration information reception time T12 by the unit 37-4 elapses, the presence notification / registration request C13 of the wireless communication device (# 1) 11 is transmitted, and the registration information reception time T13 by the registration information reception time setting unit 37-4 is set. After the elapse, the presence notification / registration request C14 of the wireless communication device (# 1) 11 is transmitted, and the presence notification / registration request C1n is transmitted a predetermined number of times by the presence notification number unit 37-3. For no response from the wireless communication device, it does not shift to the registering operation of a series of device link shown in FIG.

  If the presence notification transmission count has not exceeded in step S13, the presence notification is transmitted in step S14, the presence notification transmission count is subtracted in step S15, and the sequence returns to step S8 to continue the sequence. Specifically, as shown in FIG. 6, the information exchange of the control unit 37 of the wireless communication device (# 1) 11 to which the registration signal C11 is input by the operation of the registration switch 38 of the wireless communication device (# 1) 11 is performed. The unit 37-2 transmits the presence notification / registration request C12 of the wireless communication device (# 1) 11 after the registration information reception time T11 by the registration information reception time setting unit 37-4 has elapsed, and sets the registration information reception time. After the registration information reception time T12 by the unit 37-4 elapses, the presence notification / registration request C13 of the wireless communication device (# 1) 11 is transmitted, and the registration information reception time T13 by the registration information reception time setting unit 37-4 is set. After the elapse, the presence notification / registration request C14 of the wireless communication device (# 1) 11 is transmitted, and the presence notification count set by the presence notification count section 37-3 is sequentially subtracted from the presence notification count 37-3. Through · Sending a registration request C1n, repeatedly performs the reception process of waiting for a response from another wireless communication device.

  If it is determined in step S12 that information has been received from another wireless communication device, it is determined in step S16 whether a presence notification has been received from another wireless communication device. If there is reception, a plurality of receptions are received in step S17. The presence or absence is judged, and if there are a plurality of receptions, the process is interrupted and the process is terminated. Specifically, as shown in FIG. 7, the information exchange of the control unit 37 of the wireless communication device (# 1) 11 to which the registration signal C21 is input by the operation of the registration switch 38 of the wireless communication device (# 1) 11 is performed. After the registration information reception time T21 by the registration information reception time setting unit 37-4 has elapsed, the unit 37-2 sends the presence notification / registration request C22 of the wireless communication device (# 1) 11 to the wireless communication device (# 2) 12. In response to this, both the wireless communication device (# 2) 12 and the wireless communication device (# 3) 13 respond to the registration request C23 and the registration request C24, and the registration operation of which device link can be performed. If it is not possible to determine whether the wireless communication device (# 2) 12 or the wireless communication device (# 3) 13 is left, there is a possibility that the device is not intended by the user. Suspend.

  When the presence notification is received from the only wireless communication device in step S17, the registration request of the own wireless communication device is transmitted to the wireless communication device in step S18, and the process returns to step S8 to continue the sequence. Specifically, as shown in FIG. 5, the information exchange unit 37-2 of the control unit 37 of the wireless communication device (# 2) 12 has the registration information reception time T2 by the registration information reception time setting unit 37-4. Since the presence notification / registration request C3 from the wireless communication device (# 1) 11 has been received by the time elapsed, the registration request C4 of the wireless communication device (# 2) 12 is transmitted to the wireless communication device (# 1) 11. Then, the registration information reception time setting unit 37-4 sets the registration information reception time T4 again to perform the reception process.

  If no presence notification is received in step S16, it is determined whether a registration request or registration notification is received in step S19. If a registration request or registration notification is received, device link information of the communication device is received in step S20. In step S21, a registration notification is also transmitted by itself, and a series of device link registration processing is terminated. Specifically, as shown in FIG. 5, the information exchange unit 37-2 of the control unit 37 of the wireless communication device (# 1) 11 has the registration information reception time T3 by the registration information reception time setting unit 37-4. Since the registration request C4 from the wireless communication device (# 2) 12 has been received by the time elapsed, the registration notification R1 of the wireless communication device (# 1) 11 is transmitted to the wireless communication device (# 2) 12, and again The registration information reception time setting unit 37-4 sets registration information reception time T5 and performs reception processing. The information exchange unit 37-2 of the control unit 37 of the wireless communication device (# 2) 12 starts from the wireless communication device (# 1) 11 until the registration information reception time T4 by the registration information reception time setting unit 37-4 elapses. The registration notification R2 of the wireless communication device (# 2) 12 is transmitted to the wireless communication device (# 1) 11 and the control unit of the wireless communication device (# 2) 12 is received. A one-way device link setting unit 37-1 of 37 performs device link setting with the wireless communication apparatus (# 1) 11. The information exchange unit 37-2 of the control unit 37 of the wireless communication device (# 1) 11 also receives the registration notification R2 of the wireless communication device (# 2) 12, and then the control unit of the wireless communication device (# 1) 11 The one-way device link setting unit 37-1 of 37 performs device link setting with the wireless communication apparatus (# 2) 12.

  Needless to say, the present invention is not limited to the above-described embodiment, and other configurations may be employed without departing from the scope of the claims of the present invention.

It is a figure which shows the structural example of the wireless network applied to embodiment of this invention. It is a figure showing the example of registration of the device link by the application applied to embodiment of this invention. It is the figure which showed the structural example of the radio | wireless communication apparatus applied to embodiment of this invention. It is a figure which shows the communication standard IEEE802.15.3 frame structural example. It is a figure which shows the process example of registration operation | movement of a device link. It is a figure which shows the process example of registration avoidance operation | movement of a device link. It is a figure which shows the example of abnormality processing of registration operation of a device link. It is the figure which showed the example of a presence notification command structure. It is the figure which showed the example of a registration request command structure. It is the figure which showed the example of a registration notification command structure. It is the figure which showed the example of a registration notification and an encryption information command structure. It is a flowchart showing device link registration operation.

Explanation of symbols

  1 ... Monitor device, 2 ... VCR device, 3 ... Camera-integrated VTR, 4 ... DVD device, 5 ... Personal computer, 10 ... Control station wireless communication device, 11 ... Wireless communication device (# 1) ), 12... Wireless communication device (# 2), 13... Wireless communication device (# 3), 14... Wireless communication device (# 4), 15... Wireless communication device (# 5), 100. Network, 21-27 ... Device link, 31 ... Interface, 32 ... Transmission buffer, 33 ... Radio transmission unit, 34 ... Antenna, 35 ... Radio reception unit, 36 ... Reception buffer, 37 ... Control , 38... Link registration switch, 39... Information storage unit, 37-1 .. one-way link setting unit, 37-2... Information exchange unit, 37-3. ... Registration information reception time part, 39-1 ... Device link information, 39-2 ...... security information, 39-3 ...... device-specific (input / output) information

Claims (9)

In a wireless communication method in a wireless communication device connected to a device that executes an application,
An input / output link information setting step for determining a link direction relationship in the wireless communication apparatus from a state indicating an input / output relationship of data in the currently operating application in the device executing the application;
A registration operation for exchanging a predetermined radio signal with a radio communication device connected to a device that executes the same application as the above application by operating a registration switch of the radio communication device and registering the counterpart radio communication device is performed. A registration operation detection step to detect;
When the registration operation is performed using the wireless communication transmitted from the wireless transmission unit as the same wireless signal as the application data exchange, the input / output link information is exchanged with another wireless communication device. An output information exchange step;
Among other wireless communication apparatus connected to the device for executing the same application as the application, radio communications method and a one-way device link setting step of setting a one-way device links each other. The wireless communication method according to claim 1,
In the registration operation detecting step, the other radio is detected within a predetermined registration information reception time after detecting a registration signal by operating a registration switch provided in one of the wireless communication devices to which the input / output link information is set. A registration signal detection step of detecting a registration signal by operating a registration switch of the communication device;
A presence notification step of notifying the other wireless communication device of the presence information including the input / output link information of the one wireless communication device after the predetermined registration information reception time has elapsed;
A registration request exchanging step of exchanging and transmitting registration requests for registering link relations according to input / output link information to one radio communication device when the other radio communication device receives the presence notification; ,
No line communication method with. The wireless communication method according to claim 2, wherein
In the registration signal detecting step, the registration switch of the other wireless communication device is operated within a predetermined registration information reception time after detecting a registration signal by operating a registration switch provided in one of the wireless communication devices. If the registration signal is not detected,
In the presence notification step, after the predetermined registration information reception time has elapsed, the presence information of one wireless communication device is notified to the other wireless communication device a predetermined number of times,
In contrast, the other when there is no response from the wireless communications device, no line communication method has a performed registration of the link relationship. The wireless communication method according to claim 2, wherein
In the registration signal detecting step, the registration switch of the other wireless communication device is operated within a predetermined registration information reception time after detecting a registration signal by operating a registration switch provided in one of the wireless communication devices. If a plurality of registration signals are detected by operating the registration switches of the other plurality of wireless communication devices within a predetermined registration information reception time after detecting the registration signal by No line communication method have. The wireless communication method according to claim 2, wherein
A registration notification step for notifying each other of the link relation registration is provided. When the registration notification is encrypted, the encrypted information is exchanged with each other, and the application information is transmitted, the encryption information is encrypted according to the encryption information. radio communications how to transmit the encrypted data. The wireless communication method according to claim 5, wherein
While clearly the input-output relationship of the data of the equipment to run the same application as the application exchange the encrypted information, when transmitting the application information, you transmitting encrypted data according to the encryption information No line communication method. In a wireless communication device that is connected to a device that executes an application and performs wireless communication with another wireless communication device,
Input / output link information setting means for determining the link direction relationship in the wireless communication device from the state indicating the input / output relationship of data in the currently operating application in the device executing the application;
Registration operation detection in which a predetermined wireless signal is exchanged with each other by operating a registration switch of the wireless communication device and a wireless communication device connected to a device that executes the same application as the above application, and registers the partner wireless communication device Means,
When the registration operation is performed using wireless communication transmitted from the wireless transmission unit as the same wireless signal as the application data exchange, the input / output link information is exchanged with another wireless communication device. Input / output information exchange means;
One-way device link setting means for setting a one-way device link relationship with another wireless communication apparatus connected to a device that executes the same application as the application,
Radio communications apparatus equipped with. The wireless communication device according to claim 7, wherein
The registration operation detecting means includes a registration switch for performing a registration operation,
After detecting a registration signal by operating a registration switch provided in one wireless communication device for which input / output link information is set, the registration switch of the other wireless communication device is detected within a predetermined registration information reception time. Comprising a registration signal detecting means for detecting a registration signal by being operated;
Presence notification means for notifying the other wireless communication device of the presence information including the input / output link information of one wireless communication device after the predetermined registration information reception time has elapsed;
Registration request exchanging means for exchanging and transmitting registration requests for registering link relations according to input / output link information to one of the wireless communication devices when the other wireless communication device receives the presence notification; ,
Radio communications apparatus equipped with. In a wireless communication system that is connected to a device that executes an application and performs wireless communication with another wireless communication device,
In the device that executes the application, from the state indicating the input / output relationship of data in the currently operating application, set as input / output information for determining the link direction relationship in the wireless communication device,
Detects the operation of exchanging a predetermined wireless signal with a wireless communication device connected to a device that executes the same application as the above application, by registering the wireless communication device by activating the registration switch of the wireless communication device. If
Information indicating the input or output data relationships of the equipment executing the same application as the application, the same radio application data communication with the other wireless communication apparatus connected to the device for executing the same application as the application Exchange using wireless communication transmitted from the wireless transmission unit as a signal, and a wireless communication device for setting a one-way device link relationship of input or output with each other;
Information indicating the output or input relationship data of the device executing the same application as the application, the same radio application data communication with the other wireless communication apparatus connected to the device for executing the same application as the application A wireless communication device that is exchanged using wireless communication transmitted from a wireless transmission unit as a signal and sets a one-way device link relationship of output or input with each other;
Radio communications system comprising a.

Images