JP2009258916A - Portable terminal device, communication system, communication method, and communication program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To start a server application only when a portable terminal is connected to a particular network from a charging cradle. <P>SOLUTION: A cellphone 1 starts a DLNA server application when recognizing a connection to a home LAN 4 having an identifier of a DHCP server 6 after starting charging on a charging cradle 2. The DLNA server application then processes data to be sent to a large television receiver (TV) 5 connected via the home LAN 4. The DLNA server application is stopped when the charging operation on the charging cradle 2 is discontinued. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a mobile terminal device that is connected to a network and transmits data, a communication system, a communication method, and a communication program.

  For example, in an ad hoc network, each mobile terminal actively requests data transmission of AV content from a transmission terminal (server), and streaming playback may be performed by a download method that individually acquires AV content (patent). Reference 1, FIG. 14).

  In this case, HTTP (Hypertext Transfer Protocol, RFC2616) used in version 1 of DLNA HN (Digital Living Network Alliance, Home networked Device) is used. For example, an HTTP GET request is transmitted as a data transmission request from an HTTP client serving as a mobile terminal on the reception side to an HTTP server serving as a transmission terminal, and as a result, AV content is transmitted from the transmission terminal.

Further, in a portable terminal having a DLNA server function, it is necessary to start a DLNA server application in order to validate the DLNA server function. In addition, a technique has been proposed in which a wireless LAN communication unit is automatically turned on when an external power supply is supplied to the mobile terminal (see Patent Document 2).
JP 2007-13705 A JP 2006-49942 A

The above-described portable terminal having the DLNA server function is not convenient because the user needs to start and stop the DLNA server application each time.
Further, as in the technique described in Patent Document 2, simply detecting external power supply, turning on the wireless LAN communication unit and simultaneously starting the DLNA server application, specifies the LAN to be connected. I can't.

For example, the user wants to start the DLNA server application only when the mobile terminal is placed on the charging stand at home, but the DLNA server application starts up against the user's intention when charging at a place other than the home. there were.
Furthermore, if the DLNA server application is started without the intention of the user, the risk of unauthorized access to the data in the terminal increases, and there is a problem in terms of security.

  Therefore, an object of the present invention is to provide a mobile terminal device, a communication system, a communication method, and a communication program capable of starting a server application only when the mobile terminal is connected to a specific network at a charging stand. .

  In order to achieve the above object, in the mobile terminal device of the present invention, the control unit activates the server application when the connection to the network having the identification information can be confirmed after the charging unit starts charging. Then, processing of data to be transmitted to a client connected via the network is executed by the server application. Furthermore, the server application is stopped when the charging operation by the charging unit is lost.

  The portable terminal device of the present invention includes a communication unit that performs data communication with a client connected to a network, and a charging unit that charges a battery that supplies a power supply voltage to each unit. In addition, it includes a storage unit that stores identification information of a network to which a client is connected and a server application for enabling a server function, and an operation unit that is instructed to set a startup operation of the server application.

  Moreover, the communication system of this invention is provided with the portable terminal device used as a server. In this mobile terminal device, processing of data to be transmitted to the client is executed by a server application by data communication via a network. Here, after starting the charging of the battery that supplies the power supply voltage to each unit, the server application is started when the connection to the network having specific identification information can be confirmed, and when the charging operation stops, the server application is stopped. To do.

  The communication system of the present invention includes a device that is a client connected to a network, and a specific device that is connected to the network and transmits identification information of a specific network to the mobile terminal device.

  In the communication method of the present invention, a step of charging a battery for supplying a power supply voltage to each unit of the mobile terminal device connected to the network, and a step of setting a start operation of a server application for enabling a server function are performed. Is included. Here, the method includes a step of performing data communication with a specific device connected to the network, and a step of acquiring and storing network identification information from the specific device. In addition, it includes a step of starting a server application when connection to a network having identification information can be confirmed after charging of a battery that supplies a power supply voltage to each unit is started.

  In addition, the communication method of the present invention includes a step of executing processing of data to be transmitted to a client connected via a network by a server application, and a step of stopping the server application when the charging operation stops.

  Further, the communication program of the present invention is configured such that a function for charging a battery for supplying a power supply voltage to each unit of a mobile terminal device connected to a network and a setting instruction for a start operation of a server application for enabling the server function are performed. A function of performing data communication with a specific device connected to the network is realized on the computer of the mobile terminal device. Here, the function of acquiring and storing network identification information from a specific device, and the function of starting a server application when the connection to the network having the identification information can be confirmed after charging is started Let the computer run.

  The communication program according to the present invention has a function of executing processing of data to be transmitted to a client connected via a network by a server application and stopping the server application when the charging operation is stopped on the computer of the portable terminal device. Make it happen.

  According to the present invention, a user registers network identification information of a specific device (for example, a DHCP server). As a result, power supply from the outside is detected, and a server application (for example, a DLNA server application) is activated when connection to a specific device having registered identification information is confirmed.

  Also, the server application is stopped when the power supply from the outside is lost. Thereby, in a portable terminal, a server application can be started and stopped automatically.

  According to the present invention, since the LAN to be connected can be specified, the user can automatically start an application (for example, DLNA) when the portable terminal is placed on the charging stand at home. This eliminates the need for the user to manually start and stop the application, thereby improving the convenience.

  In addition, the application does not start when connecting to a network other than a pre-registered network. For this reason, since the application does not start when not intended, the security quality can be improved.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 shows a system configuration example of the present embodiment.

  With the spread of digital content playback devices, it has become a reality that these devices are interconnected via a home IP (Internet Protocol) network to share and view digital content such as audio.

  For example, the Digital Living Network Alliance (DLNA) defines technical specifications and implementation guidelines necessary for these digital devices to share digital contents. As a result, devices from different vendors can be connected to each other, which is an industry standard for home IP networks.

  FIG. 1 shows a configuration example of a content reproduction system using DLNA. In DLNA, there is a device called a digital media server (DMS: Digital Media Server) which is a device as a content supply unit. The DMS stores audio content or video content, and provides audio or video content to devices in the home network. In FIG. 1, the home server 7 and the mobile phone 1 correspond to DMS.

  In DLNA, there is a device called a digital media player (DMP: Digital Media Player) that serves as a display / playback unit. For example, the DMS can stream and transmit audio or video content recorded in a memory to a DMP connected via the home IP network 11. A digital media player (DMP) is a device that receives and plays back content from a DMS. In FIG. 1, a large television receiver (TV) 5 corresponds to DMP.

  In the example of FIG. 1, DMP is mounted on a large television receiver (TV) 5, and the user operates the operation control unit using, for example, the infrared of the infrared remote controller of the operation control unit or the wireless LAN bridge 3. To do. As a result, the audio or video content stored in the cellular phone 1 placed in a remote room can be reproduced on the large-sized television receiver (TV) 5.

  The router 8 is used as a network connection device when a home device is connected to an IP broadband network as the Internet 9. Here, the router 8 is used as a bridge for IP connection of devices in the home via the LAN 4 in the home in an example of using DLNA. The DHCP server 6 manages an IP address in the LAN 4 in the home. A function similar to that of the DHCP server 6 can also be realized by the router 8, the home server 7, or a large television receiver (TV) 5 which is a specific DHCP client.

  Here, in this reproduction system, the LAN 4 in the home, the mobile phone 1 and the large-sized television receiver (TV) 5 are each an IEEE (Institute of Electrical and Electronics Engineers) 802.11b standard wireless LAN 3 bridge or Bluetooth (registered trademark). The ad hoc network is constructed by connecting to each other via the wireless communication function.

  Here, in the ad hoc network, the mobile phone 1 individually owns audio or video content as content data, and these audio or video content is stored in a large television receiver (TV) within the group that constructs the ad hoc network. 5 is supplied.

Next, a usage example of the mobile phone 1 having the above-described wireless LAN and DLNA server function will be described below.
In the mobile phone 1 having the DLNA server function, contents (for example, music data, photo data, moving image data, text data, etc.) are stored. This content is data downloaded, captured, input, and stored by the user on the go with the mobile phone 1.

  Then, the mobile phone 1 can be accessed from the large-sized television receiver (TV) 5 serving as a DLNA client via the home LAN 4 and the content supplied from the mobile phone 1 can be reproduced.

  Further, since the cellular phone 1 having the DLNA server function includes a communication unit using the wireless LAN bridge 3 and can access the home LAN 4 by the wireless LAN 3, it is not necessary to connect a communication cable.

  As an example of use, a large image connected to the home LAN 4 without connecting a communication cable or the like after the user has gone out and photographed with the camera provided in the mobile phone 1 after returning home. It can be viewed on a television receiver (TV) 5. At this time, the mobile phone 1 is a DLNA server, and the large television receiver (TV) 5 is a DLNA client.

The outline of the operation according to the present embodiment is as follows. For example, when the automatic activation of the DLNA server application of the mobile phone 1 is set to ON by the user in advance, when the mobile phone 1 is placed on the charging stand 2, the mobile phone 1 is externally connected via the charging stand 2. Detect power supply of.
At this time, the mobile phone 1 automatically turns on a wireless LAN communication circuit 26 described later, connects to the home LAN 4 via the wireless LAN base station, and acquires an IP address from the DHCP server 6.

  Here, the mobile phone 1 controls to activate the DLNA server application only when the identifier of the DHCP server 6 included in the acquired IP address matches the identifier registered in advance. As a result, the DLNA application can be activated only when the mobile phone 1 is connected to a pre-registered network (home LAN 4).

  Further, when the power supply is cut off via the charging stand 2, the mobile phone 1 performs control so as to stop the DLNA server application and turn off the wireless LAN communication circuit 26. At this time, since the wireless LAN communication circuit 26 is automatically turned OFF, current consumption when there is no external power supply can be suppressed, and wasteful discharge of the battery can be reduced.

  Note that when the power supply is lost, it is considered that the user removes the mobile phone 1 from the charging stand 2 and goes out of the house, so there is no problem even if the wireless LAN communication circuit 26 is automatically turned off.

Next, details of the configuration and operation of the mobile phone 1 of the present embodiment will be described.
FIG. 2 is a block diagram showing the configuration of the mobile phone. In FIG. 2, a mobile phone 1 receives an antenna 11 and a communication circuit 12 that transmit / receive data to / from a base station, a microphone 13 that collects a transmitted voice, etc., a received voice, a voice of a video file, a voice of music data. And a speaker unit 14 for outputting.

  In addition, the mobile phone 1 includes a communication unit, a DLNA server application program, and a memory unit 15 that stores phone book and schedule book data, moving images, and the like. In addition, the mobile phone 1 includes an operation unit 16 including a plurality of keys, a display unit 17, and a control unit 20 connected to each unit via a control line 18 and a data line 19.

  In addition, the mobile phone 1 includes a camera 21 for capturing an image and an imaging control unit 22 that controls a captured image. The mobile phone 1 also includes a wireless LAN communication circuit 26 that can communicate with the wireless LAN 3 of the home LAN 4 shown in FIG. In addition, the mobile phone 1 includes a charging terminal 23 for charging the battery 25 via the charging stand 2 shown in FIG. 1 and a charging control unit 24 for controlling charging.

Next, the operation of the mobile phone 1 will be described.
First, setting of DLNA server application automatic activation will be described with reference to FIG.
In the initial state, it is assumed that the DLNA server application automatic start setting of the mobile phone 1 is OFF.

  Here, the user can start the DLNA server application from the menu screen 31 displayed on the display unit 17 by operating the keys 32 and 33 of the operation unit 16 shown in FIG. When the DLNA server application is activated, the wireless LAN communication circuit 26 shown in FIG. 2 is automatically turned on to connect to the wireless LAN base station. Thereafter, the mobile phone 1 connects to the DHCP server 6 shown in FIG. 1 via the wireless LAN base station, and acquires the IP address of the mobile phone 1.

  At this time, the mobile phone 1 displays a startup screen 31 as shown in FIG. 3 from the menu screen on the display unit 17 and asks the user to confirm whether or not to turn on automatic startup of the DLNA server application. When the user selects ON by an operation from the keys 32 and 33 of the operation unit 16, the mobile phone 1 sets the DLNA server application automatic start setting to ON.

  Then, the mobile phone 1 stores the identifier of the DHCP server 6 included in the acquired IP address in the memory 15. Here, the identifier of the DHCP server 6 is a host name, an IP address, a MAC address, or the like of the DHCP server 6.

  In the above-described setting example of automatic startup of the DLNA server application, an example of setting automatic startup from the inside of the DLNA application is shown, but the present invention is not limited to this. That is, the automatic start setting ON or OFF and the identifier of the DHCP server 6 may be manually input from the operation unit 16 on a separate setting screen.

  Next, processing when an external power source is connected to the mobile phone 1 via the charging stand 2 and the mobile phone 1 is charged will be described with reference to the flowchart of FIG. The flowchart of FIG. 4 shows processing realized by causing the control unit 20 of the mobile phone 1 to execute a communication program.

  When an external power supply is connected to the mobile phone 1 and charging is started, the control unit 20 of the mobile phone 1 determines whether or not the DLNA server application has already been activated (step S1).

  If it is determined in step S1 that the DLNA server application has already been started, the processing ends. Conversely, if the DLNA server application has not been activated, the control unit 20 of the mobile phone 1 determines whether or not the setting for automatic activation of the DLNA server application is ON (step S2).

  If the DLNA server application automatic start setting is not ON in the determination step S2, the process ends. Conversely, if the DLNA server application automatic startup setting is ON, the control unit 20 turns ON the wireless LAN communication circuit 26 (step S3). And the control part 20 tries the connection with a wireless LAN base station via the wireless LAN communication circuit 26 (step S4).

  Next, the control unit 20 determines whether or not the connection with the wireless LAN base station is successful (step S5). In the determination step S5, when the connection of the wireless LAN base station is not successful, the control unit 20 turns off the wireless LAN communication circuit 26 (step S11) and ends the process. Conversely, when the connection with the wireless LAN base station is successful, the control unit 20 tries to obtain an IP address from the DHCP server 6 (step S6). And it is judged whether IP address acquisition was successful (step S7).

  If the acquisition of the IP address is not successful in the determination step S7, the control unit 20 turns off the wireless LAN communication circuit 26 (step S11) and ends the process. On the other hand, when acquisition of the IP address is successful, the control unit 20 determines whether the identifier of the DHCP server 6 matches the identifier included in the IP address of the DHCP server 6 registered in the setting operation of FIG. Is confirmed (step S8).

  Subsequently, it is determined whether or not the identifier of the DHCP server 6 matches the registered identifier of the DHCP server 6 (step S9). If the identifiers of the two DHCP servers 6 do not match at the determination step S9, the control unit 20 turns off the wireless LAN communication circuit 26 (step S11) and ends the process. Conversely, if the identifiers of both DHCP servers 6 match at decision step S9, the control unit 20 activates the DLNA server application (step S10) and ends the process.

  Next, processing when the mobile phone 1 is disconnected from the charging stand 2 and the external power supply is stopped will be described with reference to the flowchart of FIG. FIG. 5 shows processing realized by causing the control unit 20 of the mobile phone 1 to execute a communication program.

  First, when power supply from the outside to the mobile phone 1 is stopped, the control unit 20 sets a timer (step S21). Then, it is determined whether or not external power supply is detected (step S22). In the determination step S22, when the external power supply is detected, the process is terminated as it is.

  That is, if the supply from the external power source is started again before the timer expires after a certain period of time, the processing is ended as it is. On the contrary, when the power supply from the outside is not detected, the control unit 20 determines whether or not the timer has expired (step S23).

  If the timer has expired in the determination step S23, the control unit 20 determines whether or not the setting of the DNLA application automatic activation is ON (step S24). If the setting of the DNLA application automatic activation is ON in the determination step S24, the control unit 20 turns off the wireless LAN communication circuit 26 (step S25) and ends the process. On the other hand, if the setting of automatic DNLA application activation is not ON, the processing is terminated as it is.

  Here, the wireless LAN communication circuit 26 is not turned off until the timer expires in step S23, when the user temporarily removes the mobile phone 1 from the charging stand 2 during charging. This is to prevent the DLNA application from being terminated.

  In addition, it cannot be overemphasized that it can change suitably, unless it deviates from the summary of this invention described in the claim not only in this Embodiment mentioned above.

It is a figure which shows the system configuration example by one embodiment of this invention. 1 is a block diagram showing a configuration of a mobile phone 1. FIG. It is a figure which shows the setting of DLNA server application automatic starting. It is a flowchart which shows operation | movement of the mobile telephone 1 when it will be in a charging state. 4 is a flowchart showing the operation of the mobile phone 1 when it is removed from the charging stand 2.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Mobile phone, 2 ... Charge stand, 3 ... Wireless LAN bridge, 4 ... Home LAN, 5 ... Large-sized television receiver (TV), 6 ... DHCP server, 7 ... Home server, 8 ... Router, 9 ... Internet DESCRIPTION OF SYMBOLS 11 ... Antenna, 12 ... Communication circuit, 13 ... Microphone, 14 ... Speaker, 15 ... Memory, 16 ... Operation part, 17 ... Display part, 18 ... Control line, 19 ... Data line, 20 ... Control part, 21 ... Camera , 22 ... Imaging control unit, 23 ... Charging terminal, 24 ... Charge control unit, 25 ... Battery, 26 ... Wireless LAN communication circuit, 31 ... Menu screen, 32, 33 ... Key

Claims (8)

A communication unit for data communication with a client connected to the network;
A charging unit that charges a battery that supplies power to each unit; and
A storage unit that stores identification information of the network to which the client is connected and a server application for enabling a server function;
A control unit that activates the server application when the connection to the network having the identification information can be confirmed after the charging unit starts charging, and stops the server application when the charging operation by the charging unit is stopped; ,
An operation unit for instructing setting of a startup operation of the server application;
A mobile terminal device.   The mobile terminal device according to claim 1, wherein when the operation unit is instructed to set the startup operation of the server application, the network identification information is acquired and stored in the storage unit.   The mobile terminal device according to claim 1 or 2, wherein the network identification information is a host name, an IP address, or a MAC address of a specific device in the network.   The mobile terminal device according to claim 1, wherein the communication unit is a wireless LAN communication unit.   The portable terminal device according to claim 1, wherein the server application is stopped after a predetermined time has elapsed after the charging operation by the charging unit is stopped. A client device connected to the network,
A communication unit that performs data communication with the client, a charging unit that charges a battery that supplies power to each unit, and identification information of the network to which the client is connected and a server application for enabling a server function are stored. And when the connection to the network having the identification information can be confirmed after the charging by the charging unit is started, the server application is activated when the charging operation by the charging unit is stopped. A portable terminal device comprising: a control unit that stops; and an operation unit that issues a setting instruction for starting operation of the server application;
A specific device connected to the network and transmitting identification information of the network to the mobile terminal device;
A communication system comprising: Charging a battery for supplying a power supply voltage to each part of the mobile terminal device connected to the network;
A step in which a setting instruction of a start operation of a server application for enabling a server function is performed;
Performing data communication with a specific device connected to the network;
Obtaining and storing identification information of the network from the specific device;
Starting the server application when the connection to the network having the identification information can be confirmed after the start of charging the battery that supplies the power supply voltage to each unit;
Executing processing of data to be transmitted to a client connected via the network by a server application;
Stopping the server application when there is no charging operation;
A communication method between a mobile terminal device and a client. On a computer mounted on a mobile terminal device,
A function of charging a battery for supplying a power supply voltage to each part of the mobile terminal device connected to the network;
A function for instructing the start operation of the server application that activates the server function;
A function of performing data communication with a specific device connected to the network;
A function of acquiring and storing identification information of the network from the specific device;
A function of starting the server application when the connection to the network having the identification information can be confirmed after the start of charging the battery that supplies the power supply voltage to each unit of the mobile terminal device;
A function of executing processing of data to be transmitted to a client connected via the network by a server application;
A function of stopping the server application when the charging operation is terminated;
Communication program that realizes.

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