JP2017199173A - Content distribution device, content output device, program, and content distribution system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a content distribution device and the like that can readily distribute a content file to an external storage of a content output device at a remote location.SOLUTION: A content distribution device can connect with a content output device capable of outputting content stored in an external storage detachably connected to the content output device. The content distribution device deletes the content stored in the external storage of the content output device, and transmits selected content so that the content output device will store the content in the external storage.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a content distribution device that can be connected to a content output device that can output content stored in an external storage device that is detachably connected.

  2. Description of the Related Art Conventionally, as an apparatus for outputting content, for example, a digital signage system that displays / reproduces still image or moving image content is known. The digital signage system is characterized in that content is displayed using a large display device called an information display. A method of distributing content from a content distribution server side to a content display device via a network is known (for example, see Patent Document 1).

  However, this method has a problem that preparation and management of contents (content files) to be displayed / reproduced are complicated and difficult. In particular, in recent years, the need for general users to use in places such as in stores and shopping malls has increased due to the low price and compactness of displays (display devices).

  In order to meet such needs, as a simple way to use content. A method of storing a content file in a USB memory and directly connecting the USB memory to a content display device is performed (for example, see Patent Document 2). As a result, it has become possible for a user to display and play back content in a simple manner.

JP 2014-16906 A JP 2003-108105 A

  In the case of the device configuration described above, in order to store content in a removable external storage device such as a USB memory, the external storage device must be removed and the content file must be directly rewritten. The number of content display apparatuses may be one or two, but the management is complicated when the number increases.

  Also, depending on the installation location, the user may not reach the external storage device (USB memory). It was difficult to rewrite the content file at such a position.

  In order to solve such a problem, the present invention is to provide a content distribution device and the like that can easily distribute a content file remotely to an external storage device of the content output device.

In order to solve the above-described problem, the content distribution apparatus of the present invention provides:
In a content distribution device connectable to a content output device capable of outputting content stored in an external storage device detachably connected,
Content selection means for selecting one or more contents;
Content deletion means for deleting content stored in an external storage device of the content output device;
Content transmitting means for transmitting the selected content so that the content output device stores the selected content in the external storage device;
It is characterized by providing.

The content output device of the present invention is
In a content output device to which an external storage device is detachably connected,
Content storage means for storing the content in the external storage device when content is received from the content distribution device;
If content is stored in the external storage device, content output means for outputting the content;
With
When the content is received, if the content is already stored in the external storage device, the content is deleted.

The program of the present invention
A program executed by a computer connectable with a content output device capable of outputting content stored in an external storage device detachably connected,
A content selection step of selecting one or more contents;
A content deletion step of deleting content stored in an external storage device of the content output device;
A content transmission step of transmitting the content so that the content output device stores the selected content in the external storage device;
Is executed.

The program of the present invention
A program executed by a computer to which an external storage device is detachably connected,
A content storage step of storing the content in the external storage device when the content is received from the content distribution device;
If content is stored in the external storage device, a content output step for outputting the content;
Have
When the content is received, if the content is already stored in the external storage device, the content is deleted.

The content distribution system of the present invention includes:
In a content distribution system having a content output device capable of outputting content stored in an external storage device detachably connected and a content distribution device,
The content distribution device includes:
Content selection means for selecting one or more contents;
Content transmitting means for transmitting the selected content so that the content output device stores the selected content in the external storage device;
With
The content output device includes:
Content storage means for storing the content in the external storage device when content is received from the content distribution device;
If content is stored in the external storage device, content output means for outputting the content;
With
When the content is received, if the content is already stored in the external storage device, the content output device receives the content after deleting the content.

  According to the present invention, a content distribution device that can be connected to a content output device capable of outputting content stored in an external storage device that is detachably connected, and the content selected by the content distribution device is a content output device. In the case of transmitting to the content storage device, the content stored in the external storage device of the content distribution device is deleted, and the content is transmitted so that the content output device stores the selected content in the external storage device. As a result, the content distribution device can rewrite the content file stored in the external storage device of the content output device with the content file to be transmitted.

It is a figure for demonstrating the whole structure in 1st Embodiment. It is a figure for demonstrating the whole structure in 1st Embodiment. It is a figure for demonstrating the structure of the content display apparatus in 1st Embodiment. It is a figure for demonstrating the structure of the content delivery apparatus in 1st Embodiment. It is an operation | movement flow for demonstrating the 1st content display process in 1st Embodiment. It is an operation | movement flow for demonstrating the 1st content delivery process in 1st Embodiment. In 1st Embodiment, it is a sequence diagram for demonstrating the flow of a process. In 1st Embodiment, it is a sequence diagram for demonstrating the flow of a process. In 1st Embodiment, it is a sequence diagram for demonstrating the flow of a process. It is a figure for demonstrating the operation | movement screen in 1st Embodiment. It is a figure for demonstrating the operation | movement screen in 1st Embodiment. It is an operation | movement flow for demonstrating the 2nd content delivery process in 2nd Embodiment. It is an operation | movement flow for demonstrating the 2nd content delivery process in 2nd Embodiment. It is a figure for demonstrating an example of the data structure in 3rd Embodiment. It is a figure for demonstrating the operation | movement screen in 3rd Embodiment. It is an operation | movement flow for demonstrating the 2nd content display process in 4th Embodiment. It is an operation | movement flow for demonstrating the 3rd content display process in 6th Embodiment. It is an operation | movement flow for demonstrating the 3rd content display process in 6th Embodiment. It is a figure for demonstrating the operation | movement screen in 7th Embodiment. It is a figure for demonstrating the operation | movement screen in 7th Embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following description, a content distribution system including the content distribution device and the content output device of the present invention will be described as an example. In addition, this embodiment is an example for demonstrating this invention, and of course is not limited to the content of embodiment.

[1. First Embodiment]
First, the first embodiment will be described. The first embodiment is an example in which content is transmitted / distributed to a predetermined content display device.

[1.1 Overall configuration]
First, the overall configuration will be described with reference to FIGS. FIG. 1 is a diagram for explaining an outline of a content display device 10 that displays content as an example of a content output device. The content display device 10 is configured by providing a large display, for example. For example, a display device using a liquid crystal display as a display device. Such a display is called an information display, and is often installed in places where people gather, such as stores, shopping malls, public facilities, and public institutions.

  The content display device 10 is provided with a USB (Universal Serial Bus) interface as an external IF (interface), for example. Various peripheral devices can be connected to the USB interface. In this embodiment, an external storage device is connected. As the external storage device, for example, a USB memory, an external HDD, an SSD, a memory card, etc. can be used. FIG. 1 shows that the USB memory 15 can be mounted.

  As an external IF, for example, an SD card may be provided with a card slot. That is, an interface corresponding to a peripheral device to be connected is provided. The IF in this embodiment is an interface to which at least an external storage device can be connected.

  FIG. 2 is a diagram illustrating the entire content distribution system 1 including the content display device 10 and the content distribution device 20. The content display device 10 includes one or more devices. For example, in FIG. 2, as the content display device 10, content display devices 10a, 10b, and 10c are connected to the content distribution device 20 via the network NW. The content display device 10 is equipped with a USB memory. For example, a USB memory 15a is connected to the content display device 10a, a USB memory 15b is connected to the content display device 10b, and a USB memory 15c is connected to the content display device 10c.

  The content distribution device 20 is composed of a computer server. This is realized by executing a content distribution program (content distribution application) on the computer server. At this time, as long as the content distribution program can be executed, it may be realized by, for example, a tablet terminal or a smartphone.

[1.2 Functional configuration]
Next, the functional configuration of each device will be described with reference to the drawings.

[1.2.1 Content Display Device]
A functional configuration of the content display apparatus 10 will be described with reference to FIG. As shown in FIG. 3, the content display apparatus 10 includes a control unit 110, a display unit 120, a communication unit 130, a storage unit 140, a content display control unit 150, and a USB connection unit 160. ing.

  The control unit 110 is a functional unit for controlling the entire content display device 10. The control unit 110 implements various functions by reading and executing various programs stored in the storage unit 140, and includes, for example, a CPU (Central Processing Unit).

  The display unit 120 is a functional unit for displaying content. For example, it is configured by a liquid crystal display, an organic EL display, or the like. Of course, it may be a projection device such as a projector, or may be displayed on an external display device using HDMI (registered trademark).

  The communication unit 130 is a functional unit for the content display device 10 to communicate with the content distribution device 20. For example, it is realized by a NIC (Network Interface Card) used in a wired / wireless LAN or a communication module connectable to a 3G / LTE line. Also, short-range wireless communication such as Bluetooth (registered trademark) or ZigBee may be used.

  The storage unit 140 is a functional unit that stores various programs and various data necessary for the operation of the content display device 10. The storage unit 140 includes, for example, a semiconductor memory, an HDD (Hard Disk Drive), or the like.

  The content display control unit 150 is a functional unit that performs control to display content on the display unit 120. For example, it is a functional unit that performs control to sequentially display contents (for example, to perform display control to display image data that is still images as a slide show or continuously reproduce moving image data).

  Specifically, the content display control unit 150 sequentially displays content by executing a program called a media player. This accesses the USB memory 300 and determines whether a content file is stored in a specific folder (“AutoPlay folder”) of the USB memory 300.

  When the content file is stored in the “AutoPlay” folder, the content file is automatically read out and the content is displayed. At this time, they are read and displayed in the order of file numbers.

  Note that the folder may have a different name, or the folder need not be specified. For example, when a content file is stored in the USB memory 300, a process such as automatic display may be performed.

  The USB connection unit 160 is a functional unit for connecting to a USB device. For example, it is configured with a USB 2.0 / 3.0 / 3.1 interface. In the present embodiment, a USB device will be described as an example, but any interface that can be connected as an external device may be used. For example, a bus standard such as RS-232C, IEEE 1394, Lightning, Thunderbolt, or SCSI may be used.

  A USB memory 300 is connected as an external storage device via the USB connection unit 160. The USB memory here corresponds to the USB memory 15 shown in FIG. In the present embodiment, a USB memory is described as an example of an external storage device, but various storage devices such as an external HDD and an SSD may be used. Further, it may be a recording medium such as an SD card or a CF card via a card reader.

  In the USB memory 300, a content file storage area 310 is secured and a content file is stored. Here, the content file in the present embodiment is content that can be displayed on the display unit 120. For example, it refers to image files (still image data) such as JPG, GIF, and PNG, and moving image files (moving image data) such as WMV, MPG, and AVI. A text file such as PDF or HTML, a document file, or the like may be used.

[1.2.2 Content distribution device]
Next, the functional configuration of the content distribution apparatus 20 will be described with reference to FIG. The content distribution device 20 includes a control unit 210, a display unit 220, a communication unit 230, and a storage unit 240.

  The control unit 210 is a functional unit for controlling the entire content distribution apparatus 20. The control unit 210 implements various functions by reading and executing various programs stored in the storage unit 240, and includes, for example, a CPU (Central Processing Unit).

  The display unit 220 is a functional unit for displaying various operation screen contents by the content distribution function. For example, it is configured by a liquid crystal display, an organic EL display, or the like. Of course, it may be a projection device such as a projector, or may be displayed on an external display device using HDMI (registered trademark).

  The communication unit 230 is a functional unit for the content distribution device 20 to communicate with the content display device 10. For example, it is a NIC used in a wired / wireless LAN or a communication module that can be connected to a 3G / LTE line. Also, short-range wireless communication such as Bluetooth or ZigBee may be used.

  The storage unit 240 is a functional unit that stores various programs and various data necessary for the operation of the content distribution apparatus 20. The storage unit 240 is configured by, for example, a semiconductor memory, an HDD (Hard Disk Drive), or the like.

  The storage unit 240 has a content file storage area 242 and stores a content distribution program 244.

  The content file storage area 242 is an area in which one or a plurality of content files are stored. The content file selected by the user from the stored content files is transmitted / distributed to the content display device 10.

  The content distribution program 244 is read by the control unit 210 and executed, thereby realizing a content distribution function. The content distribution program 244 is not limited to the content distribution device 20 and can be executed by any information processing device such as a general computer or a tablet terminal.

[1.3 Process flow]
Next, the flow of processing in this embodiment will be described with reference to the drawings.

[1.3.1 First content display processing]
The first content display process executed when content is displayed in the content display device 10 will be described with reference to the operation flow of FIG.

  First, when an operation to turn on the power is detected when the power is in the standby mode (power standby state), the power state changes to “ON” (Step S102 → Step S104; Yes → Step). S106).

  Here, there are three states as the power state of the content display apparatus 10. First, “power standby state (standby mode)”, which is a state before the power is turned on, and when the power is on, when displaying based on an external signal such as HDMI mode, DVI mode, etc., from the outside "Signal standby state" when no signal is input or USB memory (external storage device) is not connected in USB mode, and the power is on and signals are input or external Three states of “ON (power ON) state”, which is a state of reading content data from the storage device, can be changed.

  Further, when the power state is ON, the content display device 10 has a plurality of display modes. This can be switched according to an external input. For example, the mode can be switched according to an input of HDMI, DVI, D-SUB, composite, or the like. Further, “USB mode” for reading content data from a USB memory (external storage device) can be selected.

  When “USB mode” is selected, it is confirmed whether or not an “AutoPlay folder” exists in an external storage device such as a USB memory. When the “AutoPlay folder” exists, the content files included in the “AutoPlay folder” are continuously displayed.

  Specifically, in the flow, when the mode is other than the USB mode, an operation corresponding to the selected mode is executed (step S108; No). In the present embodiment, description of processing in other operation modes is omitted.

  If the USB mode is selected (step S108; Yes), it is determined whether an AutoPlay folder exists (step S110).

  That is, when the USB memory 300 is connected to the USB connection unit 160 and an AutoPlay folder exists in the USB memory 300 (step S110; Yes), a content display process is executed (step S112).

  The content display processing is processing for sequentially displaying content based on the content file stored in the AutoPlay folder by the media player stored in the content display device 10. For example, if the file number is stored as a serial number (01, 02,...), It can be displayed and reproduced in the order of the file number.

  The media player has a function of displaying image content and document content and reproducing moving image content based on the stored content.

  At this time, the content to be displayed may be switched and displayed at predetermined time intervals, or may be displayed at every time set by the user. Further, each file may have an attribute and may be displayed sequentially.

  Here, unless the mode is switched to another mode and the power-off operation is not performed, the content is repeatedly displayed (Step S114; No → Step S116; No → Step S108). Note that when a power-off operation is performed, the present embodiment transitions to a power standby state.

  On the other hand, when the mode is switched to another mode, the operation is performed in a mode corresponding to the mode (step S114; Yes), or when the power OFF operation is performed, this processing is ended and the power is turned OFF. (Step S114; No → Step S116; Yes).

[1.3.2 First content distribution processing]
The first content distribution process executed by the content distribution device 20 will be described with reference to FIG.

  First, the content distribution device 20 logs in to the content display device 10 (step S152). As an example, connection is made by telnet for command transmission, and connection is made by ftp for content file transmission. Hereinafter, when acquiring the state of the content display apparatus 10, a command is transmitted and acquired via telnet, but it is natural that other protocols may be used. For example, SSH may be used instead of telnet, or sftp / scp may be used instead of ftp.

  Subsequently, the power supply state of the content display apparatus 10 is acquired (step S154). This is a process that is confirmed because the content display apparatus 10 does not perform a process of storing / updating a file when the content display apparatus 10 is already accessing the USB memory 300.

  If the acquired power state is not the “power standby state” and the current input mode is the USB mode, the power source is changed to the power standby state (standby) (step S156; No → Step S158 → Step S160; Yes → Step S162). As a result, it is possible to expect the effect that the screen during rewriting is not displayed to the user and the effect that the file can be safely written.

  In this embodiment, this is realized by setting the “power standby state”, but other methods are also conceivable. For example, processing such as releasing the USB driver connection and hiding the screen may be executed.

  On the other hand, when the current power supply state is “power standby state” (step S156; Yes) or when the input mode is other than the USB mode (step S156; No → Step S158 → Step S160; No), the power supply is set to standby (power supply). Processing such as setting to (standby state) is not performed.

  In this case, since the system does not access the USB memory 300, the system does not enter the standby state in the power standby state. In addition, when content is already displayed in another mode (for example, content of external input is displayed in HDMI mode), it is displayed as it is.

  Even in such a case, a power standby state may be set. For example, the safety such as preventing the file system from being damaged may be prevailed and the power supply may be set in a standby state.

  Subsequently, when there is no “AutoPlay folder” in the USB memory 300, an “AutoPlay” folder is created (step S164; No → step S166). On the other hand, if it already exists, the file in the AutoPlay folder is deleted (step S164; Yes → step S168).

  In the present embodiment, the file in the AutoPlay folder has been described as being deleted once. However, an additional mode may be provided in which the current content file is left as it is and added. When the addition mode is selected, step S168 is not executed.

  Also, a process of uniformly creating a new folder (deleting the current folder) may be performed.

  Subsequently, the content file is transmitted (step S170). Here, when the transmission of the content file is completed, a media player reset process is executed (step S172).

  Here, the media player reset process is executed, for example, by turning on / off the content display device 10. Specifically, once the content display device 10 is turned off and then turned on again (reset operation), the media player is reset and the content data stored in the “AutoPlay” folder is renewed. Execute the process to be displayed.

  Note that the content distribution apparatus 20 may perform the login process again because the login state performed in step S152 is cancelled. For example, if the login process is executed every predetermined time and the login is completed, it can be determined that the reset process of the media player is completed.

  Then, by controlling the input mode to USB (step S174), the content data transmitted in step S170 is displayed / reproduced by the media player. Finally, the content distribution device 20 logs out from the content display device 10 (step S176).

[1.3.3 Sequence 1]
Next, the flow of processing between the content distribution device 20 and the content display device 10 will be described. First, a sequence when the power state of the content display apparatus 10 is “power standby state” or “signal standby state” will be described with reference to FIG.

  First, a login process is executed from the content distribution device 20 to the content display device 10. For example, a login request is made from the content distribution apparatus 20 using Telnet and FTP (S1002).

  Here, after the login OK signal is returned by Telnet and FTP from the content display device 10 (S1004), the content distribution device 20 transmits a model name acquisition request to the content display device 10 (S1006). At this time, for example, a request for acquisition of the model name is made by a Telnet command.

  In response to this, the content display apparatus 10 transmits the model name in response to the model name (S1008). Based on the model name, the content distribution apparatus 20 can determine whether or not automatic reproduction is possible.

  Subsequently, the content distribution device 20 transmits a power state acquisition request to the content display device 10 (S1010). The power status acquisition request can acquire the power status of the content display device 10 by transmitting a Telnet command.

  For example, “0” is returned in the power standby state, “1” in the power ON state, and “2” in the signal standby state. In this sequence diagram, a case where the power state is returned as a power standby state or a signal standby state will be described.

  Subsequently, the content distribution device 20 deletes the content file stored in the content display device 10 (S1014). That is, first, it is checked whether or not the “AutoPlay” folder exists in the USB memory 300 by using a file list command (ls command). Here, if the “AutoPlay” folder exists, it can be seen that the content file already exists.

  Therefore, the content file is deleted in the “AutoPlay” folder with the del command. Further, in the case where management is performed using the root folder instead of the “AutoPlay” folder, the (content) file stored in the USB memory 300 is deleted.

  If the content file does not exist (when there is no “AutoPlay” folder), the deletion process may not be executed.

  Subsequently, after deleting the content file, the content file included in the list is transmitted to the content display device 10 by FTP and stored in the USB memory 300 (S1016).

  Here, the content file may be transmitted as it is, or the file name may be converted into a sequence number and transmitted. As a method of transmitting the file name to the sequence number, a file name obtained by converting the remote destination file name into the sequence number by the PUT command in FTP may be used.

That is,
"PUT content file name File name changed to sequence number"
As long as the file is sent.

  Note that if the “AutoPlay” folder does not exist at this stage, the folder may be generated by the MKDIR command.

  Here, the process is repeatedly executed until all the content files included in the list are transmitted. When all the content files have been transmitted, a media player reset request is transmitted by Telnet (S1018).

  When all operations are completed, the content distribution device 20 transmits a logout request to the content display device 10 (S1020). As a result, both Telnet and FTP are disconnected.

[1.3.4 Sequence 2]
Next, a case where the power state is the power ON state and the input mode is the USB mode will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the process same as the process of FIG. 7, and description is abbreviate | omitted.

  When the power status of the content display device 10 is “power ON” by the power status response (S1012), the content distribution device 20 transmits an input mode acquisition request to the content display device 10 (S2002). This control is transmitted by Telnet.

  If the input mode of the content display device 10 is the USB mode by the input mode response, the content distribution device 20 transmits a power standby state transition request to the content display device 10 (S2006).

  Upon receiving the power standby state transition request, the content display apparatus 10 transitions the power state from the current power ON state to the power standby state. A response signal may be transmitted after the transition.

  After transmitting the content file and making a media player reset request, the content distribution device 20 acquires the power state of the content display device 10 (S2008, S2010).

  Then, by transmitting the power ON state transition request (S2012), the content display apparatus 10 transitions to the power ON state. In S1010, if the power is already on, it is not necessary to transmit.

[1.3.5 Sequence 3]
Next, a case where the power state is the power ON state and the input mode is other than the USB mode will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the process same as the process of FIG. 8, and description is abbreviate | omitted.

  If the input mode is a mode other than the “USB mode” based on the input mode response (S2004), the content file deletion / transmission process is executed as it is, and the media player reset process is executed (S1014 to S1018).

  Then, the power supply state is acquired by the power supply state response (S2008, S2010), and it is confirmed by the presence of the power supply state response whether or not the power supply has been restored.

  Subsequently, after it is confirmed that the power has been restored, an input mode switching request is transmitted (S2102). Here, the content transmitted by switching to the USB mode may be reproduced / displayed, or a process of returning to the original mode may be performed.

[1.4 Operation example]
Next, a specific operation example (screen example) will be described with reference to the drawings. FIG. 10 is an example of a display screen W100 displayed on the display unit 220 when the first content distribution process is executed in the content distribution device 20.

  As shown in the display screen W100, the content file included in the list is transmitted from the content distribution device 20 to the content display device 10. This list of content files is displayed in region R100. As displayed in the area R100, the list attributes and the list name are displayed side by side. By identifying and displaying the attributes of the list (for example, a list of moving image contents and a list of still image contents), the user can intuitively identify what list includes the content. .

  The currently selected list name is displayed in area R102, and the content (file) included in the list is displayed in area R104. The selected list only needs to be identified by the user. For example, the selected list may be identified (for example, highlighted) from the list displayed in the region R100. .

  The content displayed in the region R104 is displayed in a plurality of tiles. For example, the content C100 is displayed, and the content file name C104 of the content is displayed. Further, the order C102 in the list is displayed, and the user can recognize the order in which the contents are displayed and reproduced. The content may be a list display that is not tiled, for example.

  A plurality of operation buttons are displayed on the display screen W100. For example, a distribution button B100 for actually distributing to the content display device 10, an add button B102 for adding a content file to the list, and a delete button B104 for deleting are displayed. A reservation delivery button B106, which will be described later, is also displayed.

  In this screen, an operation example (screen example) when the distribution button B100 is selected is the display screen W110 in FIG. On the display screen W110, a window W115 for designating a delivery destination is newly displayed.

  In the window W115, the list name to be distributed to the region R110 is displayed, and which content display device (panel) is selected as the distribution destination is displayed in R112.

  Here, by selecting the content display device 10 to be distributed and selecting the OK button, the content file specifically included in the list is transmitted to the selected content display device 10.

  As described above, according to the present embodiment, when the content distribution device is operated, the content file is stored in the external storage device (USB memory 300) connected to the content display device.

  Accordingly, the user does not have to copy the content file by inserting and removing the USB memory 300 one by one, and can manage the content file appropriately.

[2. Second Embodiment]
Next, the second embodiment will be described. In the second embodiment, the functions and configuration of the first embodiment are the same, but the processing of the content distribution device 20 is replaced with FIGS. 6 to 12 and 13. In the present embodiment, the processing will be mainly described. In addition, about the process same as FIG. 6 of 1st Embodiment, the detailed description is abbreviate | omitted by attaching | subjecting the same code | symbol.

  First, after the login process (step S152), it is confirmed whether or not the model name of the content display device 10 is a model that can receive content distribution (whether it is a target model) (step S202).

  If the content display device 10 determines that it is the target model (step S202; Yes), the mac address of the content display device 10 that is the target model is acquired (step S204).

  The mac address is information for identifying the content display device 10 and may be information such as an IP address or a network name as long as the information can be uniquely identified.

  If the mac address can be acquired (step S204; Yes), it is determined whether or not the automatic display mode is installed in the content display device 10 (step S206). If the content display device 10 has the automatic playback mode, the power state of the content display device 10 is acquired (step S154).

  Here, when the model name of the content display device 10 is not the target model, when the mac address cannot be obtained, or when there is no automatic playback mode, error processing is performed and this processing is terminated (step S202; No / Step S204; No / Step S206; No → Step S208).

  Here, in step S154; in step S158, the content distribution device 20 acquires the current state of the content display device 10. That is, it is acquired whether the power state of the content display apparatus 10 is currently “ON” or “power standby state”, and whether the input mode is “USB mode” or another mode (for example, “HDMI input mode”). It will be.

  Subsequently, the content distribution processing is performed by the content distribution device 20, and the processing after the media player reset processing is performed is shown in FIG. Here, in the present embodiment, processing for returning the operation state of the content display device 10 to the state before content distribution is performed.

  Specifically, first, the power of the content display apparatus 10 is turned OFF → ON along with the media player reset process. At this time, the power state acquired in step S154 is called to set the original power state.

  Next, it is acquired whether or not the power state is the same as before (that is, before content distribution) (step S220). If they are not the same, it is considered that the user has changed the state, so a log is recorded (step S220; No → step S222).

  Subsequently, it is acquired whether the power supply state is the “signal standby state” (step S224). If the power state acquired in step S154 is the “signal standby state”, a signal for changing to the power standby state (power standby signal) is transmitted in order to shift to the power standby state (step S224; Yes-> Step S226).

  When the acquired power state is not the signal standby state, the input mode is determined. That is, if the input mode is different from the previous mode (before the content distribution), the user may have changed, so it is recorded in the log (Step S228; No → Step S230). If the input mode is the same as before and the mode is other than the USB mode, the mode is switched to the previous input mode (Step S230; No → Step S234).

  Then, logout processing is performed (step S236), and it is determined whether or not there are remaining panels (step S238). If there are remaining panels, the target panel is changed, and the processing is repeated from step S152. If there is no remaining panel (step S238; No), a log is recorded and the process is terminated (step S240).

  As described above, when content is distributed to the content display device 10, if a media player reset process (for example, power OFF → ON) is executed, the content display device 10 automatically reproduces the content.

  However, according to the present embodiment, the content display device 10 is returned to the previous state. As a result, it is possible to prevent content data from being suddenly displayed on a device whose power state is “power standby” when it is not desired to display content on the content display device 10.

  Further, according to the present embodiment, when a device whose previous power supply state is “signal standby state” is reset, the power supply is turned on, and nothing is displayed before content distribution on the content display device 10. The phenomenon that content data is suddenly displayed can be prevented.

  In addition, when different content data is displayed on the content display device 10 (for example, when a DVD is played with HDMI input), the input mode returns to the previous state. Display / playback can be prevented.

  In addition, although it is recording of the log of each step mentioned above, a log may be recorded and it does not need to be. Further, the user may be able to switch ON / OFF for log recording.

[3. Third Embodiment]
Subsequently, the third embodiment will be described. The third embodiment is an embodiment in which the display capability of the content display device 10 serving as a distribution destination is stored as a list, and candidates as distribution destinations are displayed based on the list.

  For example, FIG. 14 is an example of a content display device table stored in the content distribution device 20. The address of the content display device 10 is stored as a mac address, and whether or not automatic reproduction is possible and how the monitor resolution is set is acquired.

  For example, when automatic reproduction is not possible (for example, when the automatic reproduction mode is not supported as a model and the automatic reproduction mode is turned off by the user setting), a display that cannot be selected as the distribution destination content display device 10 is performed. .

  In addition, the size and orientation of the display screen can be known depending on the monitor resolution. For example, when the monitor resolution is “1080 × 1920”, it can be seen that the content display device 10 is placed vertically. In such a case, for example, in the case of landscape content or video content (horizontal video), it may be configured such that it cannot be selected as a distribution destination.

  FIG. 15 is a diagram illustrating an operation example of the present embodiment. A window W200 is displayed on the display screen. In the region R200 on the window W200, content display devices 10 that are content distribution destinations are listed.

  Here, the content display apparatus 10 installed in the “parking lot” cannot be selected. Thereby, it is possible for the user to select an appropriate content display device 10.

[4. Fourth Embodiment]
Next, a fourth embodiment will be described with reference to FIG. In the fourth embodiment, a case where a part of the processing realized by the content distribution device 20 described above is performed by the content display device 10 will be described.

  That is, the content distribution device 20 in the present embodiment transmits a content file regardless of the state of the content display device 10. Note that the content display device 10 may not be transmitted if functions necessary for the present embodiment such as content display are not implemented.

  In the present embodiment, the first content display process (FIG. 5) of the content display device 10 in the first embodiment is replaced with a second content display process (FIG. 16). Specifically, this is processing in which steps S102 to S110 of the first content display processing are replaced with steps S302 to S316 of the second content display processing. Specific description will be given below.

  The content display device 10 receives a preparation signal from the content distribution device 20 (step S302). The content distribution device 20 transmits a preparation signal to the content display device 10 before transmitting the content file.

  The content display device 10 may respond with an ACK signal when the content file can be received, and a NACK signal when the content file cannot be received. The content distribution apparatus 20 that has returned the NACK signal stops transmission of the content file.

  When the current mode is the USB mode, the content display device 10 changes the power supply state to the standby state (power supply standby state) once (step S304; Yes → step S.306).

  Subsequently, if the “AutoPlay” folder already exists, the content file included in the “AutoPlay” folder is deleted (step S310). At this time, if there is no “AutoPlay” folder, it may be created, or the “AutoPlay” folder may be deleted and created.

  Subsequently, the content file is received from the content distribution apparatus 20 (step S312). The received content file is stored in the content file storage area 310 of the USB memory 300.

  When the content distribution device 20 completes the transmission of the content file included in the list, the content distribution device 20 transmits a completion signal, and the content file reception device receives the completion signal (step S314; Yes). As a result, it can be seen that all content files have been received from the content distribution apparatus 20.

  Note that the content display device 10 only needs to know that all of the content files have been transmitted, so other processing may be performed. For example, various methods such as setting the file name of the last content file to “99” or acquiring information on the number of contents separately can be considered.

  And when performing automatic reproduction | regeneration, a content display process is performed (step S316; Yes-> step S112).

  As described above, according to the present embodiment, part of the processing executed in the content distribution device 20 in the first embodiment can be realized by the content display device 10.

[5. Fifth Embodiment]
Next, a fifth embodiment will be described. 5th Embodiment demonstrates the case where 4th Embodiment is applied to 2nd Embodiment.

  Specifically, the process (step S220 to step S234) executed by the second content distribution processing apparatus (FIG. 13) may be executed by the content display apparatus 10.

  That is, when a completion signal is received (step S314 in FIG. 16; Yes), a process for returning to the state of the previous content display device 10 is executed.

  For example, if the power state is “power standby state”, the power standby state is restored. When the input mode is another mode (for example, “HDMI input mode”), the mode is switched to the mode.

  As a result, even if a content file is received from the content distribution device 20, it is possible to display in the previous state.

[6. Sixth Embodiment]
Subsequently, the sixth embodiment will be described. In the sixth embodiment, the content distribution device 20 causes the content display device 10 to switch to the USB mode and forcibly display the content.

  That is, the content distribution device 20 performs control to force the content display device 10 to start the content display processing by turning on the power and switching to the USB mode. As a method, a command may be transmitted via telnet, or an attribute may be added to the content file. Alternatively, a control may be performed to transmit a content display signal separately and forcibly display the content display signal.

  Here, in the present embodiment, an example in which processing is executed by transmitting a content display signal from the content distribution device 20 in the fourth embodiment will be described with reference to FIGS. 17 and 18.

  The third content display process in FIGS. 17 and 18 is a process in which a part of the second content display process shown in FIG. 16 is replaced. To do.

  When the content display signal is received after receiving the completion signal (step S402; Yes), if the power state is not “ON”, the power state is switched to “ON” (step S404; No → step S406). If the operation mode is not “USB mode”, the operation mode is switched to “USB mode” (step S408; No → step S410). Then, a content display process is executed, and when there is no switching to another mode and no power-off operation, the process is repeated from step S304 (step S112 → step S114; No → step S116; No → step S304).

  If no content display signal is received (step S402; No), normal processing is executed. That is, when automatic reproduction is executed, content display processing is executed (step S316; Yes → step S112), and when not executed, the processing transitions to step S114 in FIG.

  By switching to the USB mode, the content stored in the “AutoPlay” folder is sequentially reproduced and displayed in the content display process (step S112).

  Thus, according to the present embodiment, it is possible to forcibly reproduce and display content. Therefore, for example, it is possible to provide a highly flexible system in which content is always displayed on the content display device 10 during opening hours, or in the case where important information is displayed forcibly.

[7. Seventh Embodiment]
Next, a seventh embodiment will be described. The seventh embodiment is an embodiment in which content files are reserved and distributed.

  That is, by executing the reservation distribution process in the content distribution device 20 described above, it is possible to make a reservation for the timing to be transmitted and displayed on the content display device 10.

  For example, in FIG. 10, when the reservation delivery button B106 is selected, the screen changes to a reservation delivery editing screen as shown in FIG. On this screen, it is possible to select when and to which content display device 10 the content file is to be transmitted.

  In addition, a reservation name, a target panel, a content list name, a day of the week, and a delivery time can be selected. The contents relating to these inputted reservations are stored as reservation information. This reservation information is displayed on a screen and can be browsed, for example, as shown in FIG. From this screen, for example, the reservation information can be edited and deleted.

  Further, by selecting the immediate transmission button, the content file can be transmitted to the selected content display device 10 without waiting for the reservation time. Furthermore, a log can be displayed.

  The log displays whether or not the content file has been correctly transmitted for each reservation information. Furthermore, a log can be displayed by selecting a list or the content display device 10.

  For example, when a log is displayed after one content display device 10 is selected, a list of content files transmitted to the selected content display device 10 can be viewed. Thereby, it is possible to check what content is displayed and reproduced for each content display device 10.

  Further, by combining these reservation information and the sixth embodiment, for example, when a content file is transmitted early in the morning, the content is forcibly displayed and reproduced, and the current state is maintained for daytime. You may do things like that.

  For example, when using in a shopping mall, at the time of opening a store (before), the content display device 10 included in the reservation information is switched to the USB mode to display the content. It is also possible to use it by giving priority to the setting of.

[8. Modified example]
The present invention is not limited to the above-described embodiments, and various modifications can be made. That is, embodiments obtained by combining technical means appropriately changed within the scope not departing from the gist of the present invention are also included in the technical scope of the present invention.

  In addition to the above description, the above-described embodiments may be executed in appropriate combinations within a consistent range.

  In the above-described embodiment, an example of outputting content has been described as an example of a content output device. However, as a method of outputting content, for example, a projection device or an irradiation device may be used, or voice or music may be used. There may be.

  In addition, the program that operates in each device in the embodiment is a program (a program that causes a computer to function) that controls the CPU and the like so as to realize the functions of the above-described embodiments. Information handled by these devices is temporarily stored in a temporary storage device (for example, RAM) at the time of processing, then stored in various ROM or HDD storage devices, and read and corrected by the CPU as necessary. • Writing is performed.

  Here, as a recording medium for storing the program, a semiconductor medium (for example, ROM, a non-volatile memory card, etc.), an optical recording medium / a magneto-optical recording medium (for example, a DVD (Digital Versatile Disc), MO (Magneto Optical), etc. Disc), MD (Mini Disc), CD (Compact Disc), BD, etc.), magnetic recording medium (eg, magnetic tape, flexible disk, etc.), etc. In addition, by executing the loaded program, not only the functions of the above-described embodiment are realized, but also based on the instructions of the program, the processing is performed in cooperation with the operating system or other application programs. The functions of the invention may be realized.

  In addition, when distributing to the market, the program can be stored and distributed in a portable recording medium, or transferred to a server computer connected via a network such as the Internet. In this case, of course, the storage device of the server computer is also included in the present invention.

  In addition, a part or all of each device in the above-described embodiments may be realized as an LSI (Large Scale Integration) that is typically an integrated circuit. Each functional block of each device may be individually chipped, or a part or all of them may be integrated into a chip. Further, the method of circuit integration is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor. In addition, when integrated circuit technology that replaces LSI appears due to progress in semiconductor technology, it is of course possible to use an integrated circuit based on this technology.

DESCRIPTION OF SYMBOLS 1 Content distribution system 10 Content display apparatus 110 Control part 120 Display part 130 Communication part 140 Storage part 150 Content display control part 160 USB connection part 300 USB memory 310 Content file storage area 20 Content distribution apparatus 210 Control part 220 Display part 230 Communication part 240 storage unit 242 content file storage unit 244 content distribution program

Claims (10)

In a content distribution device connectable to a content output device capable of outputting content stored in an external storage device detachably connected,
Content selection means for selecting one or more contents;
Content deletion means for deleting content stored in an external storage device of the content output device;
Content transmitting means for transmitting the selected content so that the content output device stores the selected content in the external storage device;
A content distribution apparatus comprising:   2. The content transmission unit according to claim 1, wherein, when the content output device uses the content of the external storage device, the content transmission unit transmits a signal for changing the power supply state to the standby state. Content distribution device. A state acquisition means for acquiring the state of the content output device;
3. The content distribution apparatus according to claim 1, wherein after the content is transmitted by the content transmission unit, the state of the content output apparatus is returned to before the content is transmitted. The status acquisition means acquires at least a power status and an input mode of the content output device,
4. The content distribution apparatus according to claim 3, wherein after the content is transmitted by the content transmission unit, the power output state and the input mode of the content output device are returned to a state before the content is transmitted. In a content output device to which an external storage device is detachably connected,
Content storage means for storing the content in the external storage device when content is received from the content distribution device;
If content is stored in the external storage device, content output means for outputting the content;
With
When the content is received, if the content is already stored in the external storage device, the content is deleted.   When the content storage means receives the content from the content distribution device while outputting the content of the external storage device, the content storage means disconnects the connection with the external storage device and then stores the content. The content output apparatus according to claim 5, wherein A program executed by a computer connectable with a content output device capable of outputting content stored in an external storage device detachably connected,
A content selection step of selecting one or more contents;
A content deletion step of deleting content stored in an external storage device of the content output device;
A content transmission step of transmitting the content so that the content output device stores the selected content in the external storage device;
A program characterized by having executed. A program executed by a computer to which an external storage device is detachably connected,
A content storage step of storing the content in the external storage device when the content is received from the content distribution device;
If content is stored in the external storage device, a content output step for outputting the content;
Have
When the content is received, if the content is already stored in the external storage device, the program is deleted. In a content distribution system having a content output device capable of outputting content stored in an external storage device detachably connected and a content distribution device,
The content distribution device includes:
Content selection means for selecting one or more contents;
Content transmitting means for transmitting the selected content so that the content output device stores the selected content in the external storage device;
With
The content output device includes:
Content storage means for storing the content in the external storage device when content is received from the content distribution device;
If content is stored in the external storage device, content output means for outputting the content;
With
When transmitting the content, if the content is already stored in the external storage device, the content distribution device transmits the content after deleting the content. In a content distribution system having a content output device capable of outputting content stored in an external storage device detachably connected and a content distribution device,
The content distribution device includes:
Content selection means for selecting one or more contents;
Content transmitting means for transmitting the selected content so that the content output device stores the selected content in the external storage device;
With
The content output device includes:
Content storage means for storing the content in the external storage device when content is received from the content distribution device;
If content is stored in the external storage device, content output means for outputting the content;
With
When the content is received, when the content is already stored in the external storage device, the content output device receives the content after deleting the content.