JP6292913B2 - Communication device, control method thereof and program - Google Patents

Description

  The present invention relates to a communication device that performs close proximity wireless communication with a storage medium, and a control method and program thereof.

In recent years, information is read from a storage medium by proximity wireless communication such as NFC (Near Field Communication), and based on the read information, an application using short distance wireless communication such as wireless LAN having a longer communication range than proximity wireless communication is executed. A technology to do this has been proposed.
For example, in Patent Document 1, a personal computer receives information indicating the address of a server on a network from a contactless IC card, activates a browser program, accesses the server based on the received address information, and is provided with the server An arrangement for acquiring information is disclosed.
By applying this conventional technology, a portable terminal having a proximity wireless communication function is held over a contactless IC tag storing a URL (Uniform Resource Locator) of a web page released by a camera having the web server function. It is possible to realize a system that automatically starts a web browser program included in a mobile terminal and connects to a web server indicated by a URL to automatically display content managed by a camera.

JP 2005-56122 A

  However, since this system is intended to automatically display a specific web page, it is assumed that the number of web servers is one. Therefore, it can not be applied when there are multiple cameras. When viewing the content of multiple cameras with a mobile terminal, either rewrite the information of the non-contact IC tag in the URL of the camera you want to refer to each time, or use the number of non-contact IC tags equivalent to the number of cameras It was necessary and very time consuming.

  The present invention has been made in view of the above-described points, and it is an object of the present invention to allow reference to contents of a plurality of communication devices by holding an external device such as a portable terminal over a noncontact IC tag only once. I assume.

  The communication device according to the present invention is a communication device which publishes a Web page in which address information indicating a content acquisition destination is described, and performs proximity wireless communication with a storage medium and makes a network connection with the communication device. Proximity wireless communication means capable of reading and writing the network connection information of the above and the Web page address information of the Web page released by the communication device, the network connection information and the Web page address information in the storage medium At the time of writing, network connection information for network connection with the other communication device and Web page address information of a Web page disclosed by the other communication device have already been effectively written by the other communication device. In the case, the Web page address information already written in the storage medium or the other communication device Control to associate the address information of the acquired content with the web page published by the communication device to update the web page, and write the web page address information of the updated web page to the storage medium by the proximity wireless communication means And means.

  According to the present invention, for example, after the Web page address information of another communication device is associated with the Web page of its own, the Web page address information of its own is written to the storage medium. The content of a plurality of communication devices can be referenced by holding the external device of 1) over the storage medium only once.

It is a block diagram showing an internal configuration of a camera in a 1st embodiment. It is a block diagram which shows the internal structure of the portable terminal in 1st Embodiment. It is a block diagram which shows the internal structure of the non-contact IC tag in 1st Embodiment. It is a figure which shows an example of the recording format of a non-contact IC tag. It is a figure showing the network system in a 1st embodiment. It is a figure which shows roughly the flow until it browses the web page which the camera provided with the web server function publish | presents with a portable terminal using a non-contact IC tag. FIG. 7 is a sequence diagram showing a flow of processing in which two cameras sequentially write to the non-contact IC tag in the first embodiment. It is a figure which shows the example of description of the web page in 1st Embodiment. It is a figure which shows the example of the display screen of the camera in 1st Embodiment. It is a sequence diagram which shows the flow of the process which browses the web page of two cameras with a portable terminal using the non-contact IC tag by which the writing process was performed in 1st Embodiment. It is a figure which shows the example of the display screen of the portable terminal in 1st Embodiment. It is a sequence diagram which shows the flow of the process which two cameras write in a non-contact IC tag in order in 2nd Embodiment. It is a figure which shows the example of a description of the web page in 2nd Embodiment. It is a sequence diagram which shows the flow of the process which browses the web page of two cameras by a portable terminal using the non-contact IC tag by which the writing process was performed in 2nd Embodiment. It is a figure which shows the example of the display screen of the portable terminal in 2nd Embodiment. It is a block diagram which shows the internal structure of the camera in 3rd Embodiment. It is a figure showing the network system in a 3rd embodiment. It is a sequence diagram which shows the flow of the process which two cameras write in a non-contact IC tag in order in 4th Embodiment. It is a figure which shows the example of a description of the web page in 4th Embodiment. It is a figure which shows the example of the display screen of the camera in 4th Embodiment. It is a sequence diagram which shows the flow of the process which browses the web page of two cameras by a portable terminal using the non-contact IC tag by which the writing process was performed in 4th Embodiment. It is a figure which shows the example of the display screen of the portable terminal in 4th Embodiment.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
First Embodiment
<Configuration of Camera 100>
FIG. 1 is a block diagram showing an internal configuration of a camera 100 exemplifying the communication device in the present invention. As shown in FIG. 1, the camera 100 includes a control unit 101, a ROM 102, a RAM 103, a proximity wireless communication unit 104, a short distance wireless communication unit 105, a display unit 106, an operation unit 107, a recording unit 108, and an imaging unit 109. These components are mutually connected by an internal bus 110 as a data transmission path.
The control unit 101 is a processing block that controls the entire camera 100. The control unit 101 includes, for example, a CPU, and realizes various functions by executing a program stored in the ROM 102.
The ROM 102 is a non-volatile memory, and stores processing programs and data to be executed by the control unit 101.
A RAM 103 is a volatile memory, and is used as a working memory of the control unit 101 and a temporary storage area of data.
The close proximity wireless communication unit 104 is a processing block that performs close proximity wireless communication using the NFC method. The close proximity wireless communication unit 104 includes a resonance circuit having a predetermined inductance and capacitance, a demodulation circuit that demodulates a signal received by the resonance circuit, and a transmission circuit that amplifies a carrier wave and transmits it from the resonance circuit. NFC is a close proximity wireless communication technology using a 13.56 MHz band frequency, and although the communication distance is as short as about 10 cm, it is a technology that enables the exchange of information with a simple operation of “touch only”.
The short distance wireless communication unit 105 is a processing block that performs wireless LAN communication using the method of IEEE 802.11a, b, g, n, and is configured of a baseband / MAC controller circuit, an RF module, an antenna, and the like. The short distance wireless communication unit 105 performs wireless communication in which the communicable range is longer than that of the close proximity wireless communication unit 104.
The display unit 106 is a processing block that displays and outputs information to the user, and is configured of, for example, a liquid crystal panel, an organic EL panel, or the like.
The operation unit 107 is a processing block that receives an instruction input from the user, and includes a button, an arrow key, a touch panel, and the like.
The recording unit 108 is a processing block that stores and reads information in a large-capacity recording medium such as a built-in hard disk, a built-in flash memory, or a removable memory card.
The imaging unit 109 includes an optical lens, a CMOS sensor, a digital image processing unit, and the like, and is a processing block that converts an analog signal input through the optical lens into digital data to generate a captured image.

<Configuration of Mobile Terminal 200>
FIG. 2 is a block diagram showing an internal configuration of the portable terminal 200 exemplifying the external device in the present invention. As shown in FIG. 2, the portable terminal 200 includes a control unit 201, a ROM 202, a RAM 203, a close proximity wireless communication unit 204, a short distance wireless communication unit 205, a display unit 206, an operation unit 207, and a recording unit 208. These components are mutually connected by an internal bus 209 as a data transmission path.
The control unit 201 is a processing block that controls the entire portable terminal 200. The control unit 201 includes, for example, a CPU, and realizes various functions by executing a program stored in the ROM 202.
The ROM 202 is a non-volatile memory, and stores processing programs and data to be executed by the control unit 201.
A RAM 203 is a volatile memory, and is used as a working memory of the control unit 201 and a temporary storage area of data.
The close proximity wireless communication unit 204 is a processing block that performs close proximity wireless communication using the NFC method. The close proximity wireless communication unit 204 includes a resonance circuit having a predetermined inductance and capacitance, a demodulation circuit that demodulates a signal received by the resonance circuit, and a transmission circuit that amplifies a carrier wave and transmits it from the resonance circuit.
The short distance wireless communication unit 205 is a processing block that performs wireless LAN communication using the IEEE 802.11a, b, g, n scheme, and is configured of a baseband / MAC controller circuit, an RF module, an antenna, and the like.
The display unit 206 is a processing block that displays and outputs information to the user, and is configured of, for example, a liquid crystal panel, an organic EL panel, or the like.
The operation unit 207 is a processing block that receives an instruction input from the user, and includes a button, an arrow key, a touch panel, and the like.
The recording unit 208 is a processing block that stores and reads information in a large-capacity recording medium such as an internal hard disk, an internal flash memory, or a removable memory card.

<Configuration of Contactless IC Tag 300>
FIG. 3 is a block diagram showing an internal configuration of the non-contact IC tag 300 illustrating the storage medium in the present invention. As shown in FIG. 3, the contactless IC tag 300 includes a proximity wireless communication unit 301 and a tag memory 302, and these components are mutually connected.
The proximity wireless communication unit 301 is a processing block that performs proximity wireless communication using the NFC method. The close proximity wireless communication unit 301 includes a resonance circuit having a predetermined inductance and capacitance, a demodulation circuit that demodulates a signal received by the resonance circuit, and a transmission circuit that amplifies a carrier wave and transmits it from the resonance circuit.
The tag memory 302 is a small-capacity non-volatile memory, and read and write are executed according to a request signal received by the close proximity wireless communication unit 301. An example of the recording format of the tag memory 302 is shown in FIG. As shown in FIG. 4, the recording format is configured by a 32-byte SSID (Service Set Identifier) 401, a 64-byte encryption key 402, and a 32-byte URL 403. The SSID 401 and the encryption key 402 are wireless LAN connection parameters for connecting to the wireless network generated by the short distance wireless communication unit 105 of the camera 100. The URL 403 is web page address information of a web page published by the web server function of the camera 100.

<Network system configuration>
FIG. 5 is a diagram showing a network system in the first embodiment. As shown in FIG. 5, the network system includes two cameras 100 a, a camera 100 b, a portable terminal 200, and a noncontact IC tag 300. The camera 100a and the camera 100b mean that there are two cameras 100 having the same configuration.
As shown in FIG. 5, the camera 100a and the camera 100b and the noncontact IC tag 300, and the portable terminal 200 and the noncontact IC tag 300 can communicate with each other by proximity wireless communication according to the NFC method. The camera 100a, the camera 100b, and the portable terminal 200 have a reader / writer function defined by the NFC standard, and can read / write information by proximity wireless communication with the noncontact IC tag 300 also having a card function similarly defined by the NFC standard. is there. In addition, although NFC was mentioned as an example of a proximity | contact wireless communication system in this embodiment, it is not limited to this example. It may be another proximity wireless communication standard, for example, an infrared port in accordance with IrDA (Infrared Data Association) standard.

  Further, as shown in FIG. 5, the camera 100a and the camera 100b and the portable terminal 200 can communicate with each other by near field wireless communication by the wireless LAN method. The camera 100a and the camera 100b have functions of a STA (station) and an AP (access point) defined by the wireless LAN standard, and these functions can be selectively performed. The portable terminal 200 has a function of STA, and can perform wireless LAN communication in infrastructure mode with a camera that executes the AP function. Although not explicitly shown in FIG. 5, near-field wireless communication by the wireless LAN method is also possible between the camera 100a and the camera 100b. In that case, either one performs the AP function. In the present embodiment, the wireless LAN method is mentioned as an example of the short distance wireless communication method, but the present invention is not limited to this example. Another short distance wireless communication standard may be Bluetooth (registered trademark) communication according to a standard specification according to IEEE 802.15.1.

<Overview of writing and reading sequence>
FIG. 6 is a diagram schematically showing a flow of browsing a web page published by the camera 100 having the web server function on the portable terminal 200 using the non-contact IC tag 300.
First, the camera 100 contacts the wireless LAN connection parameters (SSID, encryption key) related to the wireless LAN network generated by its own AP function, and the URL of the Web page exposed by its own Web server function by proximity wireless communication. It writes in the IC tag 300 (step S601).
Next, when the portable terminal 200 is held over the contactless IC tag 300, the portable terminal 200 reads the wireless LAN connection parameter and the URL from the contactless IC tag 300 by close proximity wireless communication (step S602).
Next, the portable terminal 200 connects to the wireless LAN network generated by the camera 100 using the read wireless LAN connection parameter, and subsequently requests the camera 100 to acquire a web page based on the read URL. It transmits (step S603). As a response, the camera 100 transmits its own web page to the portable terminal 200 (step S604). Here, a Web page is HTML data in which a thumbnail image of media content managed by the camera 100 and a URL indicating an acquisition destination of main data are described, and the portable terminal 200 acquires the Web page. The thumbnail image list can be displayed on the display screen.

Hereinafter, the sequence of the writing process performed between the camera 100 a and the camera 100 b and the non-contact IC tag 300 will be described.
<Writing sequence>
FIG. 7 is a sequence diagram showing a flow of processing in which the camera 100 b and the camera 100 a sequentially write in the non-contact IC tag 300. As a premise, it is assumed that no valid information is written in the tag memory 302 of the contactless IC tag 300 at the start of this sequence.

First, the writing sequence of the camera 100b will be described.
In step S701, when the user performs a predetermined operation, the control unit 101 of the camera 100b transitions to a noncontact IC tag writing mode for executing writing on the noncontact IC tag 300. For example, when a predetermined button of the operation unit 107 is pressed, transition to the non-contact IC tag writing mode may be made.

  In step S702, the control unit 101 of the camera 100b causes the proximity wireless communication unit 104 to transmit a reading request signal for requesting reading of tag information of the non-contact IC tag 300. In the case of the NFC method, the communicable range by the proximity wireless communication unit 104 is within a proximity distance range of about 10 cm. Therefore, for example, the display unit 106 of the camera 100b displays a screen prompting the user to bring the camera 100b close to (touch with) the non-contact IC tag 300. As a result, the user touches the noncontact IC tag 300 with the camera 100b, and the read request signal transmitted from the close proximity wireless communication unit 104 reaches the close proximity wireless communication unit 301 of the noncontact IC tag 300. A shaded portion on the vertical axis in FIG. 7 indicates that the devices are close to each other within the communicable range of NFC communication.

  In step S703, the control unit 101 of the camera 100b causes the close proximity wireless transfer unit 104 to receive a read response signal. The read response signal includes tag information (SSID, encryption key, URL) read out from the tag memory 302 by the non-contact IC tag 300.

In step S704, the control unit 101 of the camera 100b determines whether all the values of the tag information (SSID, encryption key, URL) received in step S703 are valid. Since no valid information is written in the tag memory 302 of the noncontact IC tag 300 at the start of this sequence, the determination result is "invalid" in this step.
The determination processing here is performed on the basis of whether or not it conforms to the description format of the standard. Specifically, the SSID and the encryption key are based on whether they conform to the format defined in IEEE 802.11, and the URL is RFC (Request For Comments) 1738 "Uniform Resource Locators (URL)". The determination is made on the basis of whether or not the method defined in is adopted.

In step S705, the control unit 101 of the camera 100b activates the AP function of the wireless LAN, and the near-field wireless communication unit 105 generates a wireless LAN network (SSID, encryption key). The SSID and the encryption key may be automatically generated at random by the control unit 101. Here, as an example, the SSID is “Camera B”, and the encryption key is “abcde 12345”. Further, in this step, with the activation of the AP function, a server function of DHCP (Dynamic Host Configuration Protocol) and a Web server function are also activated.
DHCP is a protocol for dynamically assigning a network address to a device, and a server function is a function of assigning a network address. The DHCP server function assigns a predetermined network address to the camera 100b simultaneously with activation. Here, for example, “192.168.1.1” is used.
As described above, the web server function is a function of publishing a web page for referring to media content managed by the camera 100. The web server function generates the URL of the web page based on the network address assigned at startup. Here, “http://192.168.1.1/top.html” is taken as an example of the URL of the web page of the camera 100b. The web page is described in HTML (Hyper Text Markup Language). FIG. 8A shows an example of the description of the web page of the camera 100b as an example. In FIG. 8A, media content (bX. Jpg, X = 1 to N) managed by the camera 100 b is described in a table format.

  In step S706, the control unit 101 of the camera 100b causes the proximity wireless communication unit 104 to transmit a write request signal for requesting writing of tag information of the contactless IC tag 300. The write request signal includes the SSID generated in step S705, the encryption key, and the URL.

In step S 707, the control unit 101 of the camera 100 b receives the write response signal by the close proximity wireless communication unit 104. The write response signal includes a success message notifying that the non-contact IC tag 300 has successfully written the SSID, the encryption key, and the URL received in step S706 to the tag memory 302.
When the write response signal is normally received, the write sequence of the camera 100b ends. In order to notify the user of the end of the writing process, a screen indicating that the writing process has ended may be displayed on the display unit 106 of the camera 100b. FIG. 9A shows an example of the display screen of the camera.
In steps S701 to S707, the writing sequence of the camera 100b to the noncontact IC tag 300 ends.

Next, a writing sequence of the camera 100a which is subsequently executed will be described.
In step S 708, the control unit 101 of the camera 100 a transitions to the non-contact IC tag writing mode for executing writing on the non-contact IC tag 300 by the user performing a predetermined operation.

  In step S709, the control unit 101 of the camera 100a causes the proximity wireless communication unit 104 to transmit a read request signal for requesting reading of the tag information of the non-contact IC tag 300. As in step S 702, when the user touches the contactless IC tag 300 with the camera 100 a, the read request signal transmitted from the near field communication unit 104 reaches the near field communication unit 301 of the noncontact IC tag 300.

  In step S710, the control unit 101 of the camera 100a causes the close proximity wireless transfer unit 104 to receive a read response signal. The read response signal includes tag information (SSID, encryption key, URL) read from the tag memory 302 by the non-contact IC tag 300.

  In step S711, the control unit 101 of the camera 100a determines whether all the values of the tag information (SSID, encryption key, URL) received in step S710 are valid. The determination criterion is the same as step S704. In this step, since valid information has already been written by the camera 100 b in the above-described step, the determination result is “valid”.

  In step S712, the control unit 101 of the camera 100a activates the STA function of the wireless LAN, and the short distance wireless communication unit 105 transmits a connection request signal to the wireless LAN network. The connection request signal to the wireless LAN network includes the wireless LAN connection parameters (SSID, encryption key) received in step S710. The connection request signal to the wireless LAN network transmitted here is processed by the camera 100b.

  In step S713, the control unit 101 of the camera 100a causes the short distance wireless communication unit 105 to receive a wireless LAN network connection response signal. In the wireless LAN network connection response signal, a success message notifying that the camera 100b is permitted to connect the camera 100a to the wireless LAN network based on the wireless LAN connection parameters (SSID, encryption key) received in step S712. Is included.

  In step S714, the control unit 101 of the camera 100a activates the DHCP client function, and the near-field wireless communication unit 105 transmits a network address acquisition request signal. The network address acquisition request signal transmitted here is processed by the camera 100 b.

  In step S 715, the control unit 101 of the camera 100 a receives the network address request response signal by the short distance wireless communication unit 105. The network address request response signal includes the network address assigned by the DHCP server function of the camera 100b. Here, “192.168.1.2” is taken as an example.

In step S716, the control unit 101 of the camera 100a updates its own web page by associating the URL received in step S710 with its own web page, and activates the web server function. The association process is performed by inserting the URL received in step S710 as a link into its own web page.
The association processing will be specifically described below. FIG. 8B shows an example of the HTML description of the web page of the camera 100a before executing the association process. As shown in FIG. 8B, media content (aX.jpg, X = 1 to N) managed by the camera 100a is described in a table format on the Web page. FIG. 8C shows an example of the HTML description of the web page of the camera 100a after the association processing is performed. As shown in FIG. 8C, a link 801 to the web page of the camera 100b is additionally inserted in the web page of the camera 100a. The URL received in step S710 is set in an anchor tag (<a> tag) for specifying a link destination in HTML.
After updating its own web page by performing the above association processing, the control unit 101 activates the web server function. The URL of its own web page is generated based on the network address acquired in step S 715. Here, “http://192.168.1.2/top.html” is taken as an example of the URL of the web page of the camera 100a.

  In step S717, the control unit 101 of the camera 100a causes the proximity wireless communication unit 104 to transmit a write request signal for requesting writing of tag information of the contactless IC tag 300. The write request signal includes the URL generated in step S716. Note that since the camera 100a does not write the wireless LAN connection parameters (SSID, encryption key), the write request signal transmitted in this step does not include the wireless LAN connection parameters (SSID, encryption key).

In step S718, the control unit 101 of the camera 100a receives the write response signal by the close proximity wireless transfer unit 104. The write response signal includes a success message notifying that the non-contact IC tag 300 has successfully written the URL received in step S717 to the tag memory 302. Since the non-contact IC tag 300 has not received the wireless LAN connection parameters (SSID, encryption key) in step S717, the wireless LAN connection parameters are not rewritten.
When the write response signal is properly received, the write sequence of the camera 100a ends. In order to notify the user of the end of the writing process, a screen indicating that the writing process has ended may be displayed on the display unit 106 of the camera 100a. FIG. 9B shows an example of the display screen of the camera.
In steps S709 to S718, the writing sequence of the camera 100a to the noncontact IC tag 300 ends.
In the above, with reference to FIG. 7, the sequence which shows the flow of the process in which the camera 100b and the camera 100a write in the non-contact IC tag 300 in order was demonstrated.

Next, a sequence of processing for browsing web pages of the camera 100a and the camera 100b by the portable terminal 200 will be described using the non-contact IC tag 300 for which the writing processing has been executed according to the processing sequence of FIG.
<Reading sequence>
FIG. 10 is a sequence diagram showing a flow of processing for browsing web pages of the cameras 100a and 100b on the portable terminal 200 using the non-contact IC tag 300 in which the writing processing has been executed according to the processing sequence of FIG.

  In step S1001, the control unit 201 of the portable terminal 200 transitions to the noncontact IC tag reading mode for reading out the information of the noncontact IC tag 300 by the user performing a predetermined operation. For example, when a predetermined button of the operation unit 207 is pressed, transition to the non-contact IC tag read mode may be made. Alternatively, the transition may be made automatically when the power of the portable terminal 200 is turned on.

  In step S1002, the control unit 201 of the portable terminal 200 causes the proximity wireless communication unit 204 to transmit a read request signal for requesting reading of the tag information of the non-contact IC tag 300. As in step S 702, when the user touches the contactless IC tag 300 on the portable terminal 200, the read request signal transmitted from the near field communication unit 204 reaches the near field communication unit 301 of the noncontact IC tag 300. .

  In step S1003, the control unit 201 of the portable terminal 200 causes the proximity wireless communication unit 204 to receive the read response signal. The read response signal includes tag information (SSID, encryption key, URL) read from the tag memory 302 by the non-contact IC tag 300. The close proximity wireless communication between the portable terminal 200 and the contactless IC tag 300 ends here.

  In step S1004, the control unit 201 of the portable terminal 200 activates the STA function of the wireless LAN, and the short-range wireless communication unit 205 uses the wireless LAN connection parameters (SSID, encryption key) received in step S1003 to perform wireless LAN. Send a connection request signal to the network. The connection request signal to the wireless LAN network transmitted here is processed by the camera 100b.

  In step S1005, the control unit 201 of the portable terminal 200 causes the short distance wireless communication unit 205 to receive a wireless LAN network connection response signal. In the wireless LAN network connection response signal, on the basis of the wireless LAN connection parameters (SSID, encryption key) received in step S1004, the camera 100b is notified that the connection of the portable terminal 200 to the wireless LAN network is permitted. It contains a message.

  In step S1006, the control unit 201 of the portable terminal 200 activates the DHCP client function, and the short distance wireless communication unit 205 transmits a network address acquisition request signal. The network address acquisition request signal transmitted here is processed by the camera 100 b.

  In step S1007, the control unit 201 of the portable terminal 200 causes the short distance wireless communication unit 205 to receive a network address request response signal. The network address request response signal includes the network address assigned by the DHCP server function of the camera 100b. Here, as one example, “192.168.1.3” is set.

  In step S1008, the control unit 201 of the portable terminal 200 starts the web browser program, and the short-distance wireless communication unit 205 transmits a Web page acquisition request signal to the URL received in step S1003. Here, since the URL received in step S1003 is the URL of the web page of the camera 100a, the web page acquisition request signal in this step is transmitted to the camera 100a.

  In step S1009, the control unit 201 of the portable terminal 200 causes the short distance wireless communication unit 205 to receive a Web page acquisition response signal by the Web server function of the camera 100a. The web page acquisition response signal includes the web page (FIG. 8C) of the camera 100a.

  In step S1010, the control unit 201 of the portable terminal 200 causes the short distance wireless communication unit 205 to transmit a thumbnail image acquisition request signal to the URL of each thumbnail image included in the web page received in step S1009. The acquisition request signal of the thumbnail image is transmitted to the camera 100a.

  In step S1011, the control unit 201 of the portable terminal 200 causes the short distance wireless communication unit 205 to receive a thumbnail image acquisition response signal by the web server function of the camera 100a. The thumbnail image data is included in the thumbnail image acquisition request signal. Note that although the thumbnail image acquisition processing (steps S1010 and S1011) is actually repeated for the number of thumbnail images, it will be described here as one time for simplification of the description. The thumbnail image acquired in this step is displayed on the display unit 206 by the Web browser program. An example of the web page displayed here is shown in FIG. In FIG. 11A, frames indicated by a1, a2,... Indicate thumbnail images of media content managed by the camera 100a. Then, a link 1101 for referring to the image of the camera 100b is displayed. The link 1101 is a link corresponding to the description exemplified in the link 801 of FIG.

  In step S1012, the control unit 201 of the mobile terminal 200 receives a selection operation of the link 1101 by the user via the operation unit 207.

  In step S1013, the control unit 201 of the mobile terminal 200 causes the short-distance wireless communication unit 205 to transmit a Web page acquisition request signal to the URL indicated by the link selected in step S1012. Here, since the URL indicated by the link is the URL of the Web page of the camera 100b, the Web page acquisition request signal in this step is transmitted to the camera 100b.

  In step S1014, the control unit 201 of the portable terminal 200 causes the short distance wireless communication unit 205 to receive a Web page acquisition response signal by the Web server function of the camera 100b. The web page acquisition response signal includes the web page (FIG. 8A) of the camera 100b.

  In step S1015, the control unit 201 of the portable terminal 200 causes the short distance wireless communication unit 205 to transmit a thumbnail image acquisition request signal to the URL of each thumbnail image included in the web page received in step S1014. The acquisition request signal of the thumbnail image is transmitted to the camera 100b.

In step S1016, the control unit 201 of the portable terminal 200 causes the short distance wireless communication unit 205 to receive a thumbnail image acquisition response signal by the web server function of the camera 100b. The thumbnail image data is included in the thumbnail image acquisition request signal. Note that although the thumbnail image acquisition processing (steps S1015 and S1016) is actually repeated by the number of thumbnail images, the description here will be made once for the simplification of the description. The thumbnail image acquired in this step is displayed on the display unit 206 by the Web browser program. An example of the web page displayed here is shown in FIG. In FIG. 11B, frames indicated by b1, b2, ... indicate thumbnail images of media content managed by the camera 100b.
As described above, with reference to FIG. 10, a sequence of processing of browsing web pages of the camera 100a and the camera 100b by the portable terminal 200 using the non-contact IC tag 300 in which the writing processing is performed by the processing sequence of FIG. did.

  As described above, when the camera 100a writes the SSID, the encryption key and the URL in the non-contact IC tag 300, if the valid SSID, the encryption key and the URL are already written by the camera 100b, the URL of the camera 100b After inserting into the web page and associating, the URL of the own web page is written to the non-contact IC tag 300. As a result, it is possible to refer to media content managed by the camera 100 a and the camera 100 b by holding the portable terminal 200 over the non-contact IC tag 300 only once.

In FIG. 7, the process is branched only based on the result of the determination as to whether the information written in the noncontact IC tag 300 is valid or not. In this case, the noncontact IC tag 300 receives information once. Is written, the wireless LAN connection parameters will not be updated thereafter. On the other hand, an embodiment in which the processing is branched based on different conditions is also feasible.
For example, the information written to the noncontact IC tag 300 may have an expiration date. When writing information in the contactless IC tag 300, write the time stamp information together, and when the next device writes the information in the contactless IC tag 300, if the time stamp of the information already written is old, This can be realized by performing control to determine “invalid”.
Also, the camera 100 is provided with two modes, a mode for executing the determination process (FIG. 7) and a mode for not performing the determination process, as the non-contact IC tag writing mode so that the user can selectively execute it. It is also good. The mode in which the determination process is not performed is a mode in which steps S705 to S707 are necessarily performed, and the wireless LAN connection parameter on the noncontact IC tag 300 is updated by the execution of this step.

Second Embodiment
In the first embodiment, an example has been described in which the camera 100a executes the association by inserting the URL of the web page of the camera 100b as a link into its own web page. In the present embodiment, an example will be described in which the camera 100a acquires metadata information of media content of the camera 100b, and inserts the URL of each content into its own web page as a link in image units to execute association.
In addition, about the component which has a function structure substantially the same as 1st Embodiment, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol, and the characteristic part of 2nd Embodiment is demonstrated in detail. Do. Further, the internal configuration of the camera 100, the portable terminal 200, and the non-contact IC tag 300, and the network system configuration are the same as those in the first embodiment, and thus the description thereof is omitted.

<Writing sequence>
FIG. 12 is a sequence diagram showing a flow of processing in which the camera 100 b and the camera 100 a sequentially write in the non-contact IC tag 300. As a premise, the Web server functions of the camera 100a and the camera 100b disclose a URL (Web API) for acquiring information related to the media content of the camera from the outside, and the URL specification is based on the camera 100a and the camera 100b. It shall be the same. That is, if the camera 100a can acquire the information of the network address of the camera 100b, the camera 100a can issue a request for acquiring the information related to the media content of the camera 100b. Here, the information related to the media content includes a URL for acquiring body data of the media content, and a URL for acquiring a thumbnail image of the media content.

  In step S1201, the control unit 101 of the camera 100a transmits a media content information acquisition request signal by the short-distance wireless communication unit 105 based on the URL received in step S710. The control unit 101 acquires network address information of the camera 100b from the URL received in step S710, configures a URL for acquiring information related to the media content of the camera 100b based thereon, and executes the request.

  In step S1202, the control unit 101 of the camera 100a causes the short-distance wireless communication unit 105 to receive a media content information acquisition response signal. The media content information acquisition response signal includes information related to media content managed by the camera 100b.

In step S1203, the control unit 101 of the camera 100a associates the URL of the main data of the media content and the URL of the thumbnail image included in the information related to the media content received in step S1202 with the own web page. Update the web page and start the web server function. The association processing is performed by inserting the URL received in step S1202 as a link into its own web page.
The association processing will be specifically described below. FIG. 8B is an example of the HTML description of the web page of the camera 100a before the association processing is performed as described in the first embodiment. FIG. 13 shows an example of the HTML description of the web page of the camera 100a after the association processing is performed. As shown in FIG. 13, a link 1301 to a main image and a thumbnail image of the camera 100 b is additionally inserted in image units in the web page of the camera 100 a. The URL of the main body data received in step S1202 is set in the anchor tag (<a> tag) for specifying the link destination in HTML, and the URL of the thumbnail image is set in the image tag (<img> tag). In addition, about the order to insert, you may make it insert, for example in order of the generation date of an image. In that case, the media content information received in step S1202 includes generation date information of the image.
After updating its own web page by performing the above association processing, the control unit 101 activates the web server function. The URL of its own web page is generated based on the network address acquired in step S 715. Here, “http://192.168.1.2/top.html” is taken as an example of the URL of the web page of the camera 100a.
In the above, with reference to FIG. 12, the sequence which shows the flow of the process in which the camera 100b and the camera 100a write in the non-contact IC tag 300 in order was demonstrated.

Next, a sequence of processing for browsing web pages of the camera 100a and the camera 100b by the portable terminal 200 will be described using the non-contact IC tag 300 for which the writing processing has been executed according to the processing sequence of FIG.
<Reading sequence>
FIG. 14 is a sequence diagram showing a flow of processing for browsing web pages of the camera 100a and the camera 100b by the portable terminal 200 using the non-contact IC tag 300 for which the writing processing has been executed according to the processing sequence of FIG.
As shown in steps S1401 to S1404, after the control unit 201 of the portable terminal 200 receives the Web page acquisition response signal in step S1009, based on the URL of the thumbnail image described in the Web page received in step S1009. , Transmits a thumbnail image acquisition request to the camera 100a or the camera 100b, and acquires a thumbnail image. The thumbnail image acquired in this step is displayed on the display unit 206 by the Web browser program. An example of the web page displayed here is shown in FIG. As shown in FIG. 15, on the display screen of the portable terminal 200, the thumbnail image of the camera 100a and the thumbnail image of the camera 100b are mixedly displayed.
As described above, with reference to FIG. 14, a sequence of processing for browsing web pages of the camera 100 a and the camera 100 b by the portable terminal 200 using the non-contact IC tag 300 in which the writing processing is performed by the processing sequence of FIG. did.

  As described above, the camera 100a acquires information related to the media content of the camera 100b (the URL of the main data, the URL of the thumbnail image), and inserts the image-based link into its own web page using the information Make an association by As a result, the portable terminal 200 can refer to media content managed by the camera 100 a and the camera 100 b in one web page.

Third Embodiment
In the present embodiment, an example in which the non-contact IC tag 300 is incorporated in the camera 100 will be described.
<Configuration of Camera 100>
FIG. 16 is a block diagram showing an internal configuration of the camera 100 in the present embodiment. As shown in FIG. 16, the camera 100 includes a tag memory 1601 in addition to the blocks described in FIG. 1. The tag memory 1601 has the same configuration as the tag memory 302 described in the first embodiment. The tag memory 1601 is connected to the internal bus 110, and information reading and writing are executed in response to a request from the control unit 101 or a request from an external device received by the close proximity wireless communication unit 104.

<Network system configuration>
FIG. 17 is a diagram showing a network system in the third embodiment. As shown in FIG. 17, the network system includes two cameras 100 a, a camera 100 b, and a portable terminal 200.
As shown in FIG. 17, the camera 100a can read and write information with respect to the tag memory 1601 of the camera 100b by near field communication according to the NFC method. In addition, the portable terminal 200 can read and write information with respect to the tag memory 1601 of the camera 100b by near field communication according to the NFC method. The camera 100a and the camera 100b have both a reader / writer function and a card function defined by the NFC standard, and can be selectively executed.

<Writing sequence>
Hereinafter, the sequence of the writing process performed between the camera 100a and the camera 100b will be described. The present embodiment is different from the first embodiment only in the internal configuration of the camera 100, and only differences from the contents of the first embodiment will be described with reference to FIG.
First, in the sequence diagram shown in FIG. 7, the non-contact IC tag 300 is independent of the camera 100b, but in the present embodiment, the non-contact IC tag 300 is included in the camera 100b. Accordingly, the contents of some processing steps are replaced as follows.
Steps S702 and S703 replace the control unit 101 of the camera 100b with processing for reading tag information (SSID, encryption key, URL) directly from the tag memory 1601.
Steps S706 and S707 replace the processing in which the control unit 101 of the camera 100b directly writes tag information in the tag memory 1601.
In steps S709 and S710, the control unit 101 of the camera 100a replaces the processing of reading tag information from the tag memory 1601 of the camera 100b by the close proximity wireless communication unit 104. The control unit 101 of the camera 100 b reads tag information from the tag memory 1601 in response to the read request signal received by the close proximity wireless communication unit 104. Then, the read tag information is sent to the camera 100a as a read response signal.
Steps S717 and S718 replace the control unit 101 of the camera 100a with the process of writing a URL in the tag memory 1601 of the camera 100b by the close proximity wireless communication unit 104. The control unit 101 of the camera 100 b writes the URL included in the write request signal to the tag memory 1601 in response to the write request signal received by the close proximity wireless communication unit 104. Then, the writing completion notification is transmitted to the camera 100a as a writing response signal.

Fourth Embodiment
In the first embodiment, an example has been described in which the camera 100a executes the association by inserting the URL of the web page of the camera 100b as a link into its own web page. In the present embodiment, an example will be described in which the camera 100b executes the association by inserting the URL of the web page of the camera 100a as a link into its own web page.
In addition, about the component which has a function structure substantially the same as 1st Embodiment, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol, and the characteristic part of 2nd Embodiment is demonstrated in detail. Do. Further, the internal configuration of the camera 100, the portable terminal 200, and the non-contact IC tag 300, and the network system configuration are the same as those in the first embodiment, and thus the description thereof is omitted.

<Writing sequence>
FIG. 18 is a sequence diagram showing a flow of processing in which the camera 100 b and the camera 100 a sequentially write in the non-contact IC tag 300. As a premise, the web server functions of the camera 100a and the camera 100b have a function of executing processing of associating the URL of the web page designated by the external device with the web page of its own in response to the request from the external device. Further, it is assumed that the URL specification to be accessed to request the processing to be associated is the same for the camera 100 a and the camera 100 b. That is, if the camera 100a can acquire the information of the network address of the camera 100b, the camera 100a can issue a request for associating the URL of its own web page with the web page of the camera 100b.

  In step S1801, the control unit 101 of the camera 100a determines whether all the values of the tag information (SSID, encryption key, URL) received in step S710 are valid. The determination criterion is the same as step S704. In this step, since valid information has already been written by the camera 100 b in the above-described step, the determination result is “valid”. The close proximity wireless communication between the camera 100a and the contactless IC tag 300 ends here.

  In step S1802, the control unit 101 of the camera 100a generates a URL of its own web page based on the network address acquired in step S715, and activates the web server function. Here, “http://192.168.1.2/top.html” is taken as an example of the URL of the web page of the camera 100a.

  In step S1803, the control unit 101 of the camera 100a specifies the network address of the camera 100b from the URL received in step S710, and the short distance wireless communication unit 105 transmits a Web page association request signal to the camera 100b. The web page association request signal includes the URL of the web page of the camera 100a generated in step S1802.

In step S1804, the control unit 101 of the camera 100b updates its own web page by associating the URL of the web page transmitted from the camera 100a with the web page of the camera 100b. The association process is performed by inserting a URL as a link into its own web page, as in the first embodiment.
The association processing will be specifically described below. FIG. 8A is an example of the HTML description of the web page of the camera 100b before the association processing is performed. As shown in FIG. 8A, media content (bX. Jpg, X = 1 to N) managed by the camera 100 b is described in the form of a table on the Web page. FIG. 19 shows an example of the HTML description of the web page of the camera 100b after the association processing is performed. As shown in FIG. 19, a link 1901 to the web page of the camera 100a is additionally inserted in the web page of the camera 100b. The URL received in step S1803 is set in an anchor tag (<a> tag) for specifying a link destination in HTML.

In step S1805, the control unit 101 of the camera 100a receives the Web page association response signal from the camera 100b by the short distance wireless communication unit 105. The web page association response signal includes a success message notifying that the URL association has been completed by the camera 100b.
When the web page association response signal is normally received, the writing sequence of the camera 100a ends. In order to notify the user of the end of the writing process, a screen indicating that the writing process has ended may be displayed on the display unit 106 of the camera 100a. FIG. 20 shows an example of the display screen of the camera.
In the above, with reference to FIG. 18, the sequence which shows the flow of the process in which the camera 100b and the camera 100a write in the non-contact IC tag 300 in order was demonstrated.

Next, a sequence of processing for browsing web pages of the camera 100a and the camera 100b by the portable terminal 200 will be described using the non-contact IC tag 300 for which the writing processing has been executed according to the processing sequence of FIG.
<Reading sequence>
FIG. 21 is a sequence diagram showing a flow of processing for browsing web pages of the camera 100a and the camera 100b on the portable terminal 200 using the non-contact IC tag 300 for which the writing processing has been executed according to the processing sequence of FIG.
In step S 2101, the control unit 201 of the portable terminal 200 starts a web browser program, and the short-distance wireless communication unit 205 transmits a web page acquisition request signal to the URL received in step S 1003. Here, since the URL received in step S1003 is the URL of the web page of the camera 100b, the web page acquisition request signal in this step is transmitted to the camera 100b.

  In step S2102, the control unit 201 of the portable terminal 200 causes the short distance wireless communication unit 205 to receive a Web page acquisition response signal by the Web server function of the camera 100b. Here, the web page acquisition response signal includes the web page (FIG. 19) of the camera 100 b.

  In step S2103, the control unit 201 of the portable terminal 200 causes the short distance wireless communication unit 205 to transmit a thumbnail image acquisition request signal to the URL of each thumbnail image included in the web page received in step S2102. The acquisition request signal of the thumbnail image is transmitted to the camera 100b.

  In step S2104, the control unit 201 of the portable terminal 200 causes the short distance wireless communication unit 205 to receive a thumbnail image acquisition response signal by the web server function of the camera 100b. The thumbnail image data is included in the thumbnail image acquisition request signal. Note that although the thumbnail image acquisition processing (steps S2103 and S2104) is actually repeated by the number of thumbnail images, the description here will be made once for simplification of the description. The thumbnail image acquired in this step is displayed on the display unit 206 by the Web browser program. An example of the web page displayed here is shown in FIG. In FIG. 22A, frames indicated by b1, b2,... Indicate thumbnail images of media content managed by the camera 100b. Then, a link 2201 for referring to the image of the camera 100a is displayed. The link 2201 is a link corresponding to the description exemplified in the link 1901 of FIG.

  In step S2105, the control unit 201 of the mobile terminal 200 causes the short-distance wireless communication unit 205 to transmit a Web page acquisition request signal to the URL indicated by the link selected in step S1012. Here, since the URL indicated by the link is the URL of the Web page of the camera 100a, the Web page acquisition request signal in this step is transmitted to the camera 100a.

  In step S2106, the control unit 201 of the portable terminal 200 causes the short distance wireless communication unit 205 to receive a Web page acquisition response signal by the Web server function of the camera 100a. Here, the web page acquisition response signal includes the web page (FIG. 8B) of the camera 100a.

  In step S2107, the control unit 201 of the portable terminal 200 causes the short distance wireless communication unit 205 to transmit a thumbnail image acquisition request signal to the URL of each thumbnail image included in the web page received in step S2106. The acquisition request signal of the thumbnail image is transmitted to the camera 100a.

In step S2108, the control unit 201 of the portable terminal 200 causes the short distance wireless communication unit 205 to receive a thumbnail image acquisition response signal by the web server function of the camera 100a. The thumbnail image data is included in the thumbnail image acquisition request signal. Note that although the thumbnail image acquisition processing (steps S2107 and S2108) is actually repeated by the number of thumbnail images, the description here will be made once for simplification of the description. The thumbnail image acquired in this step is displayed on the display unit 206 by the Web browser program. An example of the web page displayed here is shown in FIG. In FIG. 22B, frames indicated by a1, a2,... Indicate thumbnail images of media content managed by the camera 100a.
As described above, with reference to FIG. 21, a sequence of processing for browsing web pages of the camera 100 a and the camera 100 b by the portable terminal 200 using the non-contact IC tag 300 in which the writing processing is performed by the processing sequence of FIG. did.

As described above, when the camera 100a writes the information of the web page to the non-contact IC tag 300, if the information of the effective web page is already written by the camera 100b, the camera 100b sets the URL of the web page of the camera 100a. Make an association by inserting it as a link into your own web page. As a result, it is possible to refer to media content managed by the camera 100 a and the camera 100 b by holding the portable terminal 200 over the non-contact IC tag 300 only once.
Further, as shown in FIG. 18, it is possible to shorten the time of the close proximity wireless communication with the non-contact IC tag 300 of the camera 100a.

(Other embodiments)
The present invention is also realized by executing the following processing. That is, software (program) for realizing the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU or MPU or the like) of the system or apparatus reads the program. It is a process to execute.

100: camera, 101: control unit, 102: ROM, 103: RAM, 104: proximity wireless communication unit, 105: short range wireless communication unit, 106: display unit, 107: operation unit, 108: recording unit, 109: imaging Unit 110: Internal bus 200: Mobile terminal 201: Control unit 202: ROM 203: RAM 204: Proximity wireless communication unit 205: Short range wireless communication unit 206: Display unit 207: Operation unit 208: recording unit, 209: internal bus, 300: contactless IC tag, 301: proximity wireless communication unit, 302: tag memory

Claims (9)

A communication device that publishes a Web page in which address information indicating a content acquisition destination is described,
It is possible to perform close proximity wireless communication with a storage medium, read and write network connection information for network connection with the communication device, and Web page address information of a Web page published by the communication device. Proximity wireless communication means,
When the network connection information and the Web page address information are written in the storage medium, the network connection information for network connection with the other communication device by the other communication device and the Web that the other communication device discloses When the Web page address information of the page is effectively written, the communication device discloses the Web page address information already written in the storage medium or the address information of the content acquired from the other communication device. A communication device comprising: control means for updating a Web page in association with a Web page and writing Web page address information of the updated Web page in the storage medium by the proximity wireless communication means. A communication device that publishes a Web page in which address information indicating a content acquisition destination is described,
It is possible to perform close proximity wireless communication with a storage medium, read and write network connection information for network connection with the communication device, and Web page address information of a Web page published by the communication device. Proximity wireless communication means,
When the network connection information and the Web page address information are written in the storage medium, the network connection information for network connection with the other communication device by the other communication device and the Web that the other communication device discloses When the Web page address information of the page is effectively written, the Web page address information of the Web page disclosed by the communication device or the address information of the content managed by the communication device to the other communication device A communication device, comprising: control means for requesting the other communication device to associate with a web page to be published.   The control means acquires address information from the other communication device using the network connection information already written in the storage medium, and based on the address information, the web page address information of the updated web page The communication device according to claim 1, wherein the communication device is generated.   The communication device according to any one of claims 1 to 3, further comprising a storage medium capable of reading and writing information by close proximity wireless communication.   The communication device according to any one of claims 1 to 4, wherein the close proximity wireless communication is communication by NFC. A control method of a communication device for releasing a Web page in which address information indicating a content acquisition destination is described.
When performing proximity wireless communication with a storage medium and writing network connection information for network connection with the communication device and Web page address information of a Web page published by the communication device, the other communication device is already present By the network connection information for making a network connection with the other communication device and the Web page address information of the Web page published by the other communication device, the information is already written in the storage medium. The Web page address information or the address information of the content acquired from the other communication device is associated with the Web page published by the communication device to update the Web page, and the Web page address information of the updated Web page is updated A control method of a communication device characterized by writing in a storage medium. A control method of a communication device for releasing a Web page in which address information indicating a content acquisition destination is described.
When performing proximity wireless communication with a storage medium and writing network connection information for network connection with the communication device and Web page address information of a Web page published by the communication device, the other communication device is already present When network connection information for network connection with the other communication device and Web page address information of a Web page published by the other communication device are effectively written to the other communication device. A communication device characterized by requesting that Web page address information of a Web page released by the communication device or address information of content managed by the communication device be associated with a Web page released by the other communication device Control method. A program for controlling a communication device that publishes a Web page in which address information indicating a content acquisition destination is described.
When performing proximity wireless communication with a storage medium and writing network connection information for network connection with the communication device and Web page address information of a Web page published by the communication device, the other communication device is already present By the network connection information for making a network connection with the other communication device and the Web page address information of the Web page published by the other communication device, the information is already written in the storage medium. The Web page address information or the address information of the content acquired from the other communication device is associated with the Web page published by the communication device to update the Web page, and the Web page address information of the updated Web page is updated A program for causing a computer to execute a process of writing to a storage medium. A program for controlling a communication device that publishes a Web page in which address information indicating a content acquisition destination is described.
When performing proximity wireless communication with a storage medium and writing network connection information for network connection with the communication device and Web page address information of a Web page published by the communication device, the other communication device is already present When network connection information for network connection with the other communication device and Web page address information of a Web page published by the other communication device are effectively written to the other communication device. To cause the computer to execute processing for associating the Web page address information of the Web page released by the communication device or the address information of the content managed by the communication device with the Web page released by the other communication device Programs.

Images