JP4196978B2 - COMMUNICATION SYSTEM, INFORMATION OBTAINING METHOD, AND ELECTRONIC DEVICE - Google Patents

Description

  The present invention relates to a communication system for performing communication between a plurality of electronic devices connected by a communication control bus capable of transmitting control signals and information signals mixedly, such as a serial bus compliant with IEEE-1394, for example. The present invention relates to an obtaining method and an electronic device.

  Specifically, according to the present invention, the first electronic device obtains information related to the predetermined location from the second electronic device, and accesses the predetermined location using the first communication based on the information. By adopting a configuration for obtaining information related to the second electronic device, for example, the first electronic device can perform control of the second electronic device well without wasteful processing, and the second electronic device itself can be controlled. The present invention relates to a communication system that can save memory capacity.

  A plurality of electronic devices are connected by a communication control bus capable of transmitting a mixture of control signals and information signals, such as a serial bus conforming to IEEE-1394 (hereinafter referred to as “IEEE1394 serial bus”). Communication systems that communicate control signals and information signals between devices have been considered.

  FIG. 7 shows an example of a communication system in which a plurality of electronic devices are connected by an IEEE 1394 serial bus.

  The communication system 30 includes a video tape recorder (hereinafter referred to as “VTR”) 31, a camera-integrated video tape recorder (hereinafter referred to as “camcorder”) 32, and a computer 33 for controlling the VTR 31 and the camcorder 32. ing. The VTR 31 and the computer 33 are connected by an IEEE 1394 serial bus 34, and the camcorder 32 and the computer 33 are connected by an IEEE 1394 serial bus 35. The computer 33 is connected with a display 33a, a keyboard 33b, and a mouse 33c for a user interface. Here, #A to #C indicate node IDs on the system of the computer 33, the camcorder 32, and the VTR 31, respectively.

  Signal transmission in each electronic device in the system is performed by time division multiplexing every predetermined communication cycle (for example, 125 μsec) as shown in FIG. This signal transmission is started when an electronic device called a cycle master sends a cycle start packet (CSP) indicating that a communication cycle is started on the bus.

  As communication forms in one communication cycle, there are Iso communication (hereinafter referred to as “Iso”) for transmitting information signals such as video data and audio data, and control signals such as control commands are asynchronous (hereinafter referred to as “Async”). And async communication to be transmitted. The Iso communication packet is transmitted before the Async communication packet. By attaching channel numbers 1, 2, 3,..., N to each of the Iso communication packets, a plurality of Iso data can be distinguished. After the transmission of the Iso communication packet is completed, a period until the next cycle start packet is used for transmission of the Async communication packet.

  In Async communication, a control signal from a certain electronic device that requests something from another electronic device is called a command, and a side that sends this command in a packet is called a controller. A side that receives a command is called a target. The target returns a control signal indicating the execution result of the command, that is, a packet including a response to the controller as necessary.

  This command and response are communicated between one controller and one target, and a series of exchanges that start with command transmission and end with response response is called a command transaction. The target is determined to return a response as soon as possible after receiving the command, for example, within 100 msec. The reason for this is to prevent the controller from waiting for a response for a long time and delaying the processing, or if the response is not returned due to some failure, the processing is delayed.

  The controller can request the target to perform a specific operation or inquire about the current state of the target through a command transaction. Any electronic device in the system can initiate and terminate command transactions. That is, any electronic device can be a controller or a target.

  FIG. 9 shows the structure of an Async communication packet. The command and response have the same structure. In this figure, packet data is transmitted in order from top to bottom and from left to right. A packet is composed of a packet header and a data block. The whole packet header and the data CRC in the data block (see the shaded portion) are standardized by IEEE 1394, and the destination of the electronic device indicated by the destination ID from the electronic device indicated by the source ID of the packet header. Write the contents of the data block to the address indicated by the offset.

  For example, in the communication system 30 shown in FIG. 7, when a command is transmitted from the computer 33 to the VTR 31, the source ID is #A, the destination ID is #C, and the destination offset is an area for storing the command in the VTR 31. This is the allocated memory space. When the computer 33 wishes to transmit a command to all other electronic devices in the system, the 16 bits of the destination ID are set to “all 1”. This communication form is called broadcast.

  In the data block having the structure of the Async communication packet in FIG. 9, CTS (command transaction set) indicates the type of command language. CT / RC (command type / response code) indicates a request in the case of a command, and indicates the type of reply to the request in the case of a response. HA (header address) indicates whether the requesting partner is the entire device or a sub-device (functional unit) in the device in the case of a command, and responds in the sense that the partner responds in the case of a response. Same as command. OPC (operation code) indicates a command code, that is, a specific request, and subsequent OPR (operand) indicates a parameter required for the request.

  FIG. 10 shows a configuration of a part for exchanging commands and responses as described above, taking the VTR 31 as an example of the electronic devices in the system. The VTR 31 includes a VTR device 36 and an IEEE 1394 bus transmission / reception block 37.

  The VTR device 36 is constituted by a microcomputer (hereinafter referred to as “microcomputer”), a VTR sub-device 38 for processing a command related to a recording / reproducing system (not shown) in the VTR, and a tuner in the VTR. A tuner subdevice 39 that performs processing of commands related to (not shown) and the like, and a timer subdevice 40 that performs processing of commands related to a timer (not shown) in the VTR are provided. These subdevices 38 to 40 are constituted by microcomputer software.

  The IEEE 1394 bus transmission / reception block 37 detects an Async communication packet received via the bus, and sends a command therein to the VTR device 36. When receiving the command, the VTR device 36 operates the sub devices 38 to 40 in accordance with the specific request. For example, when a PLAY command addressed to the VTR subdevice 38 is received, the command is passed to the VTR subdevice 38. The VTR sub-device 38 executes processing for controlling the recording / reproducing system to be in a reproducing state.

  Further, for example, the VTR subdevice 38 monitors various statuses (mechanism mode, time code, etc.) of the recording / reproducing system, and creates a response as necessary. This response is transmitted from the VTR device 36 to the IEEE 1394 bus transmission / reception block 37. Then, the IEEE 1394 bus transmission / reception block 37 puts the response in an Async communication packet and sends it to the bus.

  FIG. 11A shows the format structure of the command, and FIG. 11B shows the format structure of the response. Here, CTS is set to “0” h.

  Here, the type of command request currently defined, that is, the command type, includes (1) a CONTROL command for controlling the function execution of the communication target, and (2) the communication target corresponding to a specific CONTROL command. INQUIRY command for inquiring whether or not there is (3) STATUS command for inquiring about the state of a specific function to be communicated, (4) NOTIFY for requesting a report when there is a change in the state of the communication object There are four types of commands.

  For example, the format of the CONTROL command for requesting slow playback to the VTR subdevice 38 of the VTR 31 shown in FIG. 10 is as shown in FIG. 11C. Then, the response format returned from the VTR sub-device 38 corresponds to the CONTROL command. When the request is accepted, the ACCEPTED response format shown in FIG. 11D is used, whereas the response command corresponds to the CONTROL command. If not, the NOT-IMPLEMENTED response format is as shown in FIG. 11E.

  By the way, in a communication system in which a plurality of AV (Audio-Video) devices are connected to a computer, such as the communication system 30 shown in FIG. A control panel for controlling the device is displayed to prompt the user to operate.

  In this case, icons and control panels are prepared by computer application programs. On the control panel, each function of the device to be controlled is shown in the form of a button or the like, and the computer transmits a predetermined command to the control target so as to execute the corresponding function by the button operation.

  However, devices that are actually connected do not necessarily support all the functions shown on the control panel. Therefore, the computer inquires of the device to be controlled whether or not each of the functions shown on the control panel is supported, waits for the response, and reflects it in the execution of its own application program. There was a need. Further, when an application program does not correspond to a function of a device to be controlled, the function cannot be operated on the control panel.

  Therefore, in the present invention, the first electronic device can satisfactorily perform control of the second electronic device without wasteful processing, and can save the memory capacity of the second electronic device itself. Objective.

This concept of the invention includes a first electronic device corresponding to the second communication is a first communication and local communication in wide area network, and a second electronic device corresponding to the second communication, Information relating to the second electronic device is stored in a predetermined homepage on the Internet accessible by the first electronic device using the first communication, and the first electronic device has the second electronic device communicating a control signal using the second communication with the electronic device, to obtain information about the predetermined website from the second electronic device, based on information regarding the predetermined home page obtained, the by accessing via the first communication, certain information relating to the second electronic apparatus is stored in the predetermined website for communication systems that obtain.

  In the present invention, the first electronic device corresponds to the first communication in the wide area communication network and the second communication which is the local communication, and the second electronic device corresponds to the second communication. For example, the second electronic device has a camera function. Communication is performed between the plurality of electronic devices including the first electronic device and the second electronic device using the second communication. For example, a plurality of electronic devices are connected by a communication control bus capable of transmitting control signals and information signals mixedly, and information signals and control signals are communicated between the plurality of electronic devices.

  Information relating to the second electronic device is stored in the memory means at a predetermined location accessible by the first electronic device using the first communication. The second electronic device stores information on a predetermined location, for example, address information on the Internet home page. The first electronic device obtains information regarding the predetermined location from the second electronic device using the second communication. In this case, the second electronic device receives a command requesting information on the predetermined location from the first electronic device, reads out information on the predetermined location from the memory means, and sends the information to the first electronic device as a response. Reply as.

  Then, the first electronic device uses the first communication based on the information about the predetermined location obtained from the second electronic device using the second communication, for example, a predetermined homepage on the Internet. To obtain information on the second electronic device.

  For example, the first electronic device displays information on the second electronic device on the display based on the obtained information on the second electronic device. For example, the information related to the second electronic device includes display information for displaying the function of the second electronic device on the display, and the display of the first electronic device includes the display information of the second electronic device. The function is displayed. For example, a control panel having the function of the second electronic device in the form of a button or the like is displayed on the display. In this case, a command for executing the corresponding mechanism is transmitted from the first electronic device to the second electronic device by a user's operation of pressing a button.

  Further, for example, the information related to the second electronic device includes display information for displaying an icon indicating the second electronic device on the display, and the display of the first electronic device includes the second electronic device. An icon indicating the device is displayed.

According to the present invention, the first electronic device obtains information related to a predetermined homepage on the Internet from the second electronic device, and is accessible on the Internet using the first communication based on the information . Accessing a predetermined homepage to obtain information on the second electronic device, for example, obtaining function information as information on the second electronic device, and the first electronic device controlling the second electronic device. The processing can be performed satisfactorily without wasteful processing, and information is not stored in the second electronic device itself, and the memory capacity of the second electronic device itself can be saved.

  First, the communication system 10 shown in FIG. 1 will be described. As in the communication system 30 shown in FIG. 7 described above, the communication system 10 is formed by connecting a plurality of electronic devices via an IEEE 1394 serial bus.

  The communication system 10 includes a VTR 11, a camcorder 12, and a computer 13 for controlling the VTR 11 and the camcorder 12. The VTR 11 and the computer 13 are connected by an IEEE 1394 serial bus 14, and the camcorder 12 and the computer 13 are connected by an IEEE 1394 serial bus 15. A display 13a, a keyboard 13b, and a mouse 13c are connected to the computer 13 for a user interface. Here, #A to #C indicate node IDs on the system of the computer 13, the camcorder 12, and the VTR 11, respectively.

  Signal transmission in each electronic device in the system is performed by time division multiplexing every predetermined communication cycle, as in the communication system 30 shown in FIG. 7 described above, and information signals such as video data and audio data are transmitted via Iso communication. A control signal such as a control command is transmitted in an Async communication packet (see FIG. 8). When the control-side electronic device (controller) requests something from the controlled-side electronic device (target), the controller sends a command (FIG. 9) to the Async communication packet (the structure of the Async communication packet is shown in FIG. 9). 11A is inserted into the command format and sent to the target. Then, the target returns a response indicating the execution result of the command (a response format is shown in FIG. 11B) to the controller as necessary.

  FIG. 2 shows a configuration of a part for exchanging commands and responses as described above, taking the VTR 11 as an example of the electronic devices in the system. The VTR 11 includes a VTR device 16 and an IEEE 1394 bus transmission / reception block 17 in the same manner as the VTR 31 in the communication system 30 shown in FIG.

  The VTR device 16 is composed of a microcomputer, and a VTR sub-device 18 for processing a command related to a recording / playback system (not shown) in the VTR and a command related to a tuner (not shown) in the VTR. A tuner subdevice 19 that performs processing and the like, and a timer subdevice 20 that performs processing of commands related to a timer (not shown) in the VTR are provided. These subdevices 18 to 20 are constituted by microcomputer software.

  The IEEE 1394 bus transmission / reception block 17 detects an Async communication packet received via the bus and sends a command therein to the VTR device 16. When receiving the command, the VTR device 16 operates the sub devices 18 to 20 in accordance with the specific request. Further, the sub devices 18 to 20 monitor various statuses and create responses as necessary. This response is transmitted from the VTR device 16 to the IEEE 1394 bus transmission / reception block 17. Then, the IEEE 1394 bus transmission / reception block 17 puts the response in an Async communication packet and sends it to the bus.

  An editing application program is installed in the computer 13, and the user can control the VTR 11 and the camcorder 12 by an operation on the control panel displayed on the display 13a to realize the editing work. Here, on the control panel displayed on the display 13a, individual functions of the VTR 11 and the camcorder 12 are shown in the form of buttons or the like.

  The VTR 11 and the camcorder 12 each have memory means for storing function information indicating its own function as unique information and icon information for displaying an icon indicating itself. The computer 13 transmits a command for requesting the icon information and the function information to the VTR 11 and the camcorder 12 when performing the editing work. In response to this, the VTR 11 and the camcorder 12 return icon information and function information as a response to the computer 13.

  Here, in the communication system 10 shown in FIG. 1, a case is considered in which a command for requesting icon information and function information is transmitted from the computer 13 to the VTR 11.

  In this case, the format of the CONTROL command first transmitted from the computer 13 to the VTR 11 is as shown in FIG. 3A. On the other hand, the response format returned from the VTR subdevice 16 of the VTR 11 to the computer 13 is the ACCEPTED response format as shown in FIG. 3B. In this response format, the OPR includes icon information or function information, a description format of the information, for example, a bitmap format, a JPEG (Joint Photographic Experts Group) format, and a language format for the Internet, such as HTML (HyperText Markup Language). ), VRML (Virtual Reality Modeling Language), Java (registered trademark) Script (script language developed by Sun and Netscape Communications Corp.), and the like.

  If the VTR 11 does not have memory means for storing icon information and function information, it is impossible to respond to the request for the CONTROL command. Therefore, the response format sent from the VTR subdevice 16 of the VTR 11 to the computer 13 is returned. Is a NOT-IMPLEMENTED response format as shown in FIG. 3C.

  The computer 13 that has received the ACCEPTED response as shown in FIG. 3B performs the following control operation. That is, when icon information is obtained, control is performed so that an icon indicating the VTR 11 is displayed on the display 13a based on the icon information. When the function information is obtained, control is performed so that a control panel showing the individual functions of the VTR 11 in the form of buttons or the like is displayed on the display 13a based on the function information. The function information may include display data of the control panel.

  In this way, when a user operates a predetermined functional part of the control panel with the keyboard 13b or the mouse 13c in a state where the control panel showing the individual functions of the VTR 11 in the form of buttons or the like is displayed on the display 13a. The computer 13 transmits a command requesting the VTR 11 to execute the predetermined function.

  FIG. 4 shows an operation when the computer 13 continuously requests icon information and function information from the computer 13 to the VTR 11 in the communication system 10 shown in FIG.

  First, the computer 13 transmits a CONTROL command for requesting icon information to the VTR 11. On the other hand, the VTR device 16 of the VTR 11 reads icon information from the memory means and returns the icon information to the computer 13 as an ACCEPTED response. The computer 13 controls to display an icon indicating the VTR 11 on the display 13 a based on the icon information.

  Next, the computer 13 transmits a CONTROL command requesting function information to the VTR 11. On the other hand, the VTR device 16 of the VTR 11 reads the function information from the memory means and returns the function information to the computer 13 as an ACCEPTED response. Based on the function information, the computer 13 controls the display 13a to display a control panel showing individual functions of the VTR 11 in the form of buttons or the like.

  In the above description, the case where the computer 13 transmits a command requesting icon information or function information to the VTR 11 has been described. However, the same applies to the case where the computer 13 transmits a command requesting icon information or function information to the camcorder 12. To be done. FIG. 5 shows an example of the display screen 25 of the display 13a. An icon 26 indicating the VTR 11, an icon 27 indicating the camcorder 12, and a control panel 28 showing individual functions of the VTR 11 in the form of buttons or the like. Is displayed. A user can operate the VTR 11 on the control panel 28.

  In this state, when the icon 27 indicating the camcorder 12 is clicked, a control panel showing individual functions of the camcorder 12 in the form of buttons or the like is displayed in place of the control panel 28. As a result, the user can operate the camcorder on the control panel.

  In this way, in the communication system 10 shown in FIG. 1, the computer 13 can request icon information and function information from the VTR 11 and the camcorder 12, and based on the returned icon information and function information, an icon or control panel is displayed on the display 13a. Can be displayed.

  Therefore, the functions shown on the control panel of the VTR 11 and the camcorder 12 displayed on the display 13a correspond to the individual functions of the VTR 11 and the camcorder 12, respectively, and the computer 13 controls the VTR 11 and the camcorder 12. There is no need to inquire whether or not the functions shown on the panel are supported, and the user can operate all the functions of the VTR 11 and the camcorder 12 on the control panel.

  However, according to the communication system 10 shown in FIG. 1, each of the VTR 11 and the camcorder 12 stores a memory means for storing function information indicating its own function and icon information for displaying an icon indicating itself as unique information. It is necessary to have.

  Embodiments of the present invention will be described below. In this embodiment, a storage means for storing function information, icon information and the like is not required in the VTR or camcorder.

  FIG. 6 shows a communication system 10A as an embodiment. Similar to the communication system 10 shown in FIG. 1, this communication system 10A includes a VTR 11A, a camcorder 12A, and a computer 13 for controlling the VTR 11A and the camcorder 12A. The VTR 11A and the computer 13 are connected by a serial bus 14, and the camcorder 12A and the computer 13 are connected by a serial bus 15. A display 13a, a keyboard 13b, and a mouse 13c are connected to the computer 13 for a user interface. Here, #A to #C indicate node IDs on the system of the computer 13, the camcorder 12A, and the VTR 11A, respectively.

  Signal transmission in each electronic device in the system is performed in the same manner as the communication system 10 shown in FIG. That is, signal transmission in each electronic device in the system is performed by time division multiplexing for each predetermined communication cycle, as in the communication system 30 shown in FIG. 7, and information signals such as video data and audio data are transmitted. A control signal such as a control command is transmitted in an Async communication packet (see FIG. 8). When the control-side electronic device (controller) requests something from the controlled-side electronic device (target), the controller sends a command (FIG. 9) to the Async communication packet (the structure of the Async communication packet is shown in FIG. 9). 11A is inserted into the command format and sent to the target. Then, the target returns a response indicating the execution result of the command (a response format is shown in FIG. 11B) to the controller as necessary.

  The computer 13 is connected to the Internet via a modem 21. Unlike the VTR 11 and the camcorder 12 in the communication system 10 shown in FIG. 1, the VTR 11A and the camcorder 12A do not have a memory means for storing icon information and function information as unique information. Instead, as the unique information, It has memory means for storing Internet homepage address information for obtaining the icon information and function information. Although not described in detail, the other configurations of the VTR 11A and the camcorder 12A are the same as those of the VTR 11 and the camcorder 12 in the communication system 10 of FIG.

  Also in this embodiment, the editing application program is installed in the computer 13, and the user can control the VTR 11A and the camcorder 12A by the operation on the control panel displayed on the display 13a, thereby realizing the editing work. .

  When performing the editing work, the computer 13 transmits a command for requesting the icon information and the function information described above to the VTR 11A and the camcorder 12A. In response to this, the VTR 11A and the camcorder 12A return, as a response, Internet homepage address information for obtaining icon information and function information to the computer 13. The computer 13 accesses an Internet homepage based on the homepage address information, and obtains icon information and function information. As a result, similarly to the communication system 10 shown in FIG. 1, an icon indicating the VTR 11A and the camcorder 12A and a control panel showing individual functions of the VTR 11A and the camcorder 12A in the form of buttons and the like can be displayed on the display 13a.

  Here, for example, when the computer 13 requests icon information or function information from the VTR 11A, the format of the CONTROL command first transmitted from the computer 13 to the VTR 11A is as shown in FIG. 3A. On the other hand, the format of the response returned from the VTR subdevice 16 of the VTR 11A to the computer 13 is the ACCEPTED response format as shown in FIG. 3D. In this response format, OPR indicates Internet homepage address information for obtaining icon information and function information. The same applies to the case where the computer 13 transmits a command requesting icon information or function information to the camcorder 12A.

  As described above, according to the communication system 10A shown in FIG. 6, the computer 13 can request icon information and function information from the VTR 11A and the camcorder 12A, and acquire icon information and function information from the Internet based on the returned home page address information. Thus, icons and control panels can be displayed on the display 13a. Therefore, the same effect as the communication system 10 shown in FIG. 1 can be obtained.

  Further, according to the communication system 10A shown in FIG. 6, the VTR 11A and the camcorder 12A do not need to have memory means for storing icon information and function information, and there is an advantage that the memory capacity can be saved.

  In the above-described embodiment, the communication system 10A in which the VTR 11A and the camcorder 12A are connected to the computer 13 by the IEEE 1394 serial bus is shown. However, the present invention is not limited to the communication system 10A. It is equally applicable to the system.

  In the above-described embodiment, the computer 13 acquires icon information and function information from the Internet based on homepage address information returned from the VTR 11A or the camcorder 12A. It is also possible to acquire device specifications, handling methods, etc., and display them on the display 13a.

  In the present invention, for example, the first electronic device can satisfactorily perform control of the second electronic device without wasteful processing, and the memory capacity of the second electronic device itself can be saved. The present invention can be applied to a communication system in which communication is performed between a plurality of electronic devices connected by a communication control bus that can transmit control signals and information signals mixedly, such as a serial bus compliant with -1394.

It is a block diagram which shows the structure of a communication system. It is a figure which shows the part which exchanges the command and response of VTR which comprise a communication system. It is a figure which shows the format structure of the command and response at the time of requesting icon information and function information. It is a figure which shows the operation example when a computer requests | requires icon information and function information continuously from VTR. It is a figure which shows the example of a display of the icon in the display screen of a display, and a control panel. It is a block diagram which shows the communication system as embodiment. 1 is a block diagram showing an example of a communication system in which a plurality of electronic devices are connected by an IEEE 1394 serial bus. It is a figure which shows an example of the data structure on the bus | bath in the communication system using an IEEE1394 serial bus. It is a figure which shows the structure of an asynchronous (Async) communication packet. It is a figure which shows the part which exchanges the command and response of VTR which comprise the communication system using an IEEE1394 serial bus. It is a figure which shows the format structure of a command and a response.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10,10A ... Communication system 11, 11A ... Video tape recorder (VTR), 12, 12A ... Camera integrated video tape recorder (camcorder), 13 ... Computer, 14, 15 ... IEEE1394 serial bus, 16 ... VTR device, 17 ... IEEE1394 bus transmission / reception block, 21 ... modem

Claims (9)

Comprising a first electronic device corresponding to the second communication is a first communication and local communication in wide area network, and a second electronic device corresponding to the second communication,
Information relating to the second electronic device is stored in a predetermined homepage on the Internet accessible by the first electronic device using the first communication;
The first electronic device includes:
Communicating a control signal using the second communication with the second electronic device, to obtain information about the second of the predetermined website from the electronic device,
Based on the information for a given home, obtained, wherein by accessing via the first communication, the predetermined said second to that communication system to obtain information about the electronic device which is stored in the home page. It said second electronic device, a communication system according to 請 Motomeko 1 Ru provided with a camera function. Wherein the plurality of electronic devices, control signals and the information signal and communication system according to 請 Motomeko 1 that will be connected by a communication control bus which can transmit mixedly. The first electronic device includes:
Display,
Based on said second information relates to an electronic device, a communication system according to 請 Motomeko 1 further Ru and an information display means for performing display regarding the second electronic device on the display. The information related to the second electronic device includes display information for displaying the function of the second electronic device on a display,
It said information display means, on the basis of the display information, the communication system according to 請 Motomeko 4 that displays the function of the second electronic device on the display. The information related to the second electronic device includes icon information for displaying an icon indicating the second electronic device on a display,
Wherein the information display means, on the basis of the icon information, the communication system according to 請 Motomeko 4 that displays an icon indicating the second electronic device on the display. A first electronic device corresponding to a first communication in a wide area communication network and a second communication which is a local communication, and a second electronic device corresponding to the second communication ,
Information related to the second electronic device is stored in a predetermined homepage on the Internet accessible by the first electronic device using the first communication;
The first electronic device includes:
Said second communicating a control signal using the second communication with the electronic device, from the second electronic device, to obtain information about the predetermined home page,
Based on the information for a given home, obtained, wherein by accessing via the first communication, you obtain information about the second electronic apparatus is stored in the predetermined website information how to obtain. A control signal is communicated to the controlled electronic device corresponding to the second communication, which is a local communication, using the second communication, and the controlled electronic device is controlled by the controlled electronic device. First information obtaining means for obtaining information on a predetermined homepage on the Internet, which is accessible using the first communication in the wide area communication network , in which information on the device is stored;
Information on the controlled-side electronic device stored in the predetermined homepage by accessing using the first communication based on the information on the predetermined homepage obtained by the first information obtaining unit An electronic device that corresponds to the first communication and the second communication, and that controls the controlled electronic device using the second communication . Information about the self is stored, a memory means for storing information relating to a predetermined home page on the accessible Internet using a first communication in a wide area network,
The control signal is communicated using the second communication with the electronic device on the control side corresponding to the second communication which is the first communication and the local communication, and information on the predetermined homepage is requested. A second response return means for receiving a command, reading information about the predetermined homepage from the memory means, and returning the information as a response to the control-side electronic device using the second communication ; An electronic device corresponding to communication and controlled by the control-side electronic device using the second communication .

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