JP2008294778A - Information distribution system, and mobile terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information distribution system capable of providing information in a user-friendly style from an apparatus inside a facility to a user carrying a mobile terminal, and to provide the mobile terminal. <P>SOLUTION: In the information distribution system including a video display device and the mobile terminal, the mobile terminal receives the channel information of sound signals corresponding to video signals displayed by the video display device and receives the sound signals from the video display device using the channel information. Also, the information distribution system includes a content controller and the video display device, and the content controller receives information indicating the number of pieces of identification information received by the video display device from the video display device to identify the mobile terminal and changes the content to be distributed to the video display device using the above received information. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an information distribution system capable of providing information and a portable terminal used therefor.

  Patent Document 1 discloses a passenger service that enables communication of at least one of voice, image, and control information through a wireless switching network between a central server and an in-vehicle service terminal of each train or a passenger's mobile phone. An information exchange system is disclosed. In this system, the central server accepts an emergency notification or service request by operating a button on the passenger's mobile phone while responding to the mobile phone by voice or the like, and edits data corresponding to the passenger's report or service request. Further, if necessary, the broadcast data is synthesized and transmitted to the in-vehicle service terminal or the mobile phone of the passenger who requested the service.

JP 2005-352525 A

  Patent Document 1 describes that a passenger can report an emergency or request a service by inputting a simple number from a mobile phone, and the passenger does not need to make a voice call, but is installed in a facility such as a train. There is no description on how to provide information including video signals and audio signals to the user who possesses the mobile terminal from the device.

  An object of the present invention is to provide an information distribution system and a portable terminal that can provide information to a user who has a portable terminal from a device in a facility in a user-friendly manner.

  In an information distribution system including a video display device and a portable terminal, the portable terminal receives channel information of an audio signal corresponding to the video signal displayed on the video display device, and uses this channel information to An audio signal is received from the display device. An information distribution system comprising a content control device and a video display device, wherein the content control device displays received number information indicating the number of received identification information for identifying the mobile terminal by the video display device. The content to be distributed to the video display device is changed using the received number information.

  It is possible to provide an information distribution system and a portable terminal that can provide information to a user who has a portable terminal from a device in a facility with ease of use.

  FIG. 1 is a diagram illustrating a configuration example of an in-vehicle information distribution system. The mobile terminal 1 is, for example, a mobile phone or a portable PC (Personal Computer), and is carried by passengers in the vehicle. The in-vehicle video display device 2 is installed in a train, displays video on a monitor, and provides information to passengers. It should be noted that a plurality of in-vehicle image display devices 2 are installed for each vehicle in the train.

  Hereinafter, a method for outputting an audio signal linked to the video signal displayed on the in-vehicle video display device 2 from the portable terminal 1 will be described.

  For example, the portable terminal 1 searches for the signal from the in-vehicle image display device 2 by the audio signal ch (channel) information transmitting / receiving unit 101 every 30 seconds, and the portable terminal 1 is placed in the vehicle in which the in-vehicle image display device 2 is installed. When the possessed user gets in and receives a signal from the in-vehicle video display device 2, handshaking is performed between the audio signal ch information transmitting / receiving unit 201 and the audio signal ch information transmitting / receiving unit 101. The search for whether or not a signal is received from the in-vehicle video display device 2 is not limited to the audio signal ch information transmitting / receiving unit 101, and may be performed by another receiving unit. The signal search is performed when a signal search instruction is input from the user of the mobile terminal 1, when it is detected that the vehicle has passed through a gate such as a ticket gate, or when the location information is in a specific facility such as a station. It is desirable to start when it is detected. As described above, the power consumption can be suppressed by performing the signal search in response to a user instruction or the like instead of always performing the signal search.

  Then, the audio signal ch information transmitting / receiving unit 101 receives audio signal ch information for receiving the audio signal by the mobile terminal 1 such as the frequency at which the in-vehicle video display device 2 is transmitting the audio signal. Note that the audio signal ch information is transmitted by a communication method that distributes information with directivity in a range where it is assumed that the monitor of the in-vehicle video display device 2 can be seen, for example, a range of 120 degrees. Examples of such communication methods include infrared communication including IrDA (Infrared Data Association), and examples of communication methods used in a specific area with a specific low power radio method include Bluetooth (registered trademark) or wireless LAN (IEEE802.11) and the like.

  The audio signal transmission unit 203 transmits the audio signal by FM broadcast, Bluetooth, wireless LAN, or the like. The audio signal ch information is, for example, the frequency when the audio signal is transmitted by FM broadcast, and the packet ID when the audio signal is transmitted by Bluetooth or wireless LAN. The audio signal ch information is generated by the audio signal ch information transmitting / receiving unit 201. The audio signal ch information is not limited to information generated by the audio signal ch information transmitting / receiving unit 201, and may be information transmitted along with the content received by the content receiving unit 202 from the distribution content control apparatus 3. . Here, it is assumed that the content includes a video signal and an audio signal.

  When receiving a request from the audio signal ch information transmitting / receiving unit 101 of the mobile terminal 1, the audio signal ch information transmitting / receiving unit 201 transmits the audio signal ch information to the audio signal ch information transmitting / receiving unit 101.

  The audio signal ch information transmitting / receiving unit 101 transmits the received audio signal ch information to the control unit 102. In accordance with the audio signal ch information, the control unit 102 indicates the frequency when the audio signal is transmitted as an FM signal, and the packet ID when the audio signal is transmitted via Bluetooth or wireless LAN, and the audio signal reception unit 103. Set to.

  The content receiving unit 202 transfers the audio signal of the received content to the audio signal transmitting unit 203 and the video signal to the video signal decoding display unit 204. The audio signal transmission unit 203 transmits an audio signal according to control from the content reception unit 202. For example, when transmitting with an FM signal, the audio signal is modulated and transmitted to the frequency notified by the audio signal audio signal ch information. In addition, when transmitting by Bluetooth or wireless LAN, an audio signal ID is added to transmit the signal.

  The audio signal receiving unit 103 transmits the received audio signal to the audio signal decoding unit 104. The audio signal decoding unit 104 decodes the audio signal and outputs the audio signal from the headphones 106 via the audio signal output unit 105.

  As described above, the mobile terminal 1 receives the audio signal ch information and displays it on the monitor of the in-vehicle video display device 2 without performing an operation such as adjusting the frequency to allow the user to hear the audio. The audio signal linked to the video signal can be listened to on the portable terminal, and the usability of the user of the portable terminal can be improved.

  In addition, since this audio signal ch information is distributed with directivity in a range where it is assumed that the monitor can be viewed, the audio signal is output even though the monitor cannot be viewed. Can be prevented. Note that when the front of the mobile terminal 1 is facing the in-vehicle video display device 2, the user of the mobile terminal 1 is likely to be watching the monitor of the in-vehicle video display device 2, and the front of the mobile terminal 1 is assumed. The audio signal ch information transmission / reception unit 101 may be provided so that the audio signal ch information can be received when the front surface of the mobile terminal 1 faces the in-vehicle video display device 2. However, when the user of the mobile terminal 1 is looking at the direction of the monitor, the mobile terminal 1 may be placed in a bag or pocket, so that the headphones 106 are wired headphones. Audio signal is output when the user is highly likely to see the monitor screen by installing the audio signal channel information transmission / reception unit in the radio signal transmission / reception part in the case of a remote control part or wireless headphones. be able to.

  As described above, according to the present system, the audio signal linked to the video signal displayed on the in-car video display device 2 can be received by the portable terminal 1 without any user operation, and user convenience is improved. be able to. In some cases, the user may not wish to switch to the audio signal linked to the video signal displayed on the in-car video display device 2, for example, the user is currently listening to music on the mobile terminal 1. Therefore, it is desirable to be able to set whether or not switching is possible in advance. By providing such a setting, it is possible to prevent the audio signal from being switched against the user's intention.

  FIG. 2 is a flowchart showing an example of a procedure for outputting an audio signal corresponding to the video signal displayed on the in-vehicle video display device 2 in the portable terminal 1. This process is executed by the control unit 102 based on a program stored in a storage unit (not shown) of the mobile terminal 1.

  When the user who has the portable terminal 1 gets on the vehicle on which the in-vehicle image display device 2 is installed and receives a response from the in-vehicle image display device 2 (step S101), the control unit 102 starts processing.

  In step S102, the audio signal ch information transmission / reception unit 101 sends a request for transmission of the audio signal ch information transmitted by the in-vehicle video display device 2 after the handshake with the audio signal ch information transmission / reception unit 201 is completed. The information is transmitted to the ch information transmitting / receiving unit 201. The audio signal ch information transmission / reception unit 101 receives the audio signal ch information, and transmits the received audio signal ch information to the control unit 102 (step S103). The control unit 102 stores the audio signal ch information previously received from the audio signal ch information transmission / reception unit 101, compares the current audio signal ch information with the stored audio signal ch information (step S104), and changes are made. If there is, the process proceeds to step S105, and if there is no change, the process proceeds to step S106.

  In step S <b> 105, the control unit 102 performs audio signal reception channel switching processing on the audio signal reception unit 103. As described above, the switching process is based on the audio signal ch information, when the audio signal is transmitted as an FM signal, its frequency when it is transmitted via Bluetooth or wireless LAN, and its packet ID when it is transmitted via Bluetooth or wireless LAN. It is set in the signal receiving unit 103.

  In step S106, the audio signal receiving unit 103 transmits the received audio signal to the audio signal decoding unit 104. In step S107, the audio signal decoding unit 104 decodes the audio signal. In step S 108, the audio signal decoded by the audio signal decoding unit 104 is output from the headphones 106 via the audio signal output unit 105.

  Thereafter, the process returns to step S102, and a series of processing is repeated. In this way, by periodically receiving and comparing the audio signal ch information, even if the user of the mobile terminal 1 moves the position and starts to watch the monitor of another in-vehicle video display device, the user changes An audio signal linked to the video signal being viewed can be received without any operation.

  FIG. 3 is a diagram illustrating another configuration example of the in-vehicle information distribution system. In FIG. 3, the same components as those in FIG. Referring to FIG. 3, in a vehicle in which a plurality of in-vehicle image display devices are installed, a method for alleviating the concentration state when users with portable terminals are concentrated around one in-vehicle image display device. explain.

  When the user carrying the mobile terminal 1 gets into the vehicle in which the in-vehicle video display device 2 is installed, handshaking is performed between the audio signal ch information transmitting / receiving unit 201 and the audio signal ch information transmitting / receiving unit 101. At this time, the audio signal ch information transmitting / receiving unit 101 transmits ID information unique to each mobile terminal, such as the telephone number, manufacturing number, e-mail address, and MAC address of the mobile terminal 1, to the audio signal ch information transmitting / receiving unit 201.

  The audio signal ch information transmission / reception unit 201 identifies the number of mobile terminals receiving the audio signal using the received ID information, and transmits the number of mobile terminals to the reception user number management unit 301 as the number of reception users. The second in-vehicle image display device 4 and the third in-vehicle image display device 5 also have the same configuration as the in-vehicle image display device 2, receive ID information from the mobile terminal, and receive an audio signal being distributed. The number of portable terminals is transmitted to the receiving user number management unit 301.

  The reception user number management unit 301 compares the number of reception users for each in-vehicle video display device with a predetermined threshold value such as 20 people. In this way, by comparing the number of receiving users with the threshold value, it can be determined whether the user is congested or concentrated locally due to rush. In the case where there is an in-vehicle video display device having the number of receiving users equal to or greater than the threshold, the receiving user number management unit 301 includes a device having the largest number of in-vehicle video display devices having the number of receiving users equal to or greater than the threshold and a reception less than the threshold. The device with the smallest number of users is extracted from the in-vehicle video display device which is the number of users. The content control unit 302 controls the content recording unit 303 and the content distribution unit 304, and the content to be distributed to the in-vehicle video display device having the smallest number of receiving users is distributed by the in-vehicle video display device having the largest number of receiving users. Change to content.

  As described above, the content distributed to the in-vehicle video display device with the largest number of receiving users is switched to the in-vehicle video display device with the smallest number of receiving users and distributed, so that the popular content is displayed. Can reduce local congestion. Further, since popular content may change depending on passengers getting on and off, it is preferable to repeat the above control at predetermined intervals such as every 10 minutes. In the above description, the content displayed on the device with the maximum number of users is switched to the device with the minimum number of users, but the content is not limited to the device with the maximum number of users and the device with the minimum number of users. The content distribution may be switched by a plurality of devices having the number of receiving users equal to or greater than a threshold value. By doing so, congestion can be further reduced.

  FIG. 4 is a flowchart showing an example of an information transmission / reception procedure in the distribution content control apparatus and the in-vehicle video display apparatus when the concentrated state relaxation control described above is performed.

  In step S201, the audio signal ch information transmission / reception unit 201 identifies the number of mobile terminals that have received the audio signal during handshaking with the audio signal ch information transmission / reception unit 101. Request to send information. In step S202, the audio signal ch information transmitting / receiving unit 201 detects the number of received users from the received ID information. In step S <b> 203, the audio signal ch information transmitting / receiving unit 201 transmits the detected number of received users to the received user management unit 301.

  In step S204, the reception user number management unit 301 compares the number of reception users for each in-vehicle video display device with a threshold value. At this time, if there are a plurality of in-vehicle video display devices having the number of receiving users equal to or greater than the threshold, the device with the largest number of people is extracted. If there is an in-vehicle video display device above the threshold, the process proceeds to step S205, and if there is no in-vehicle video display device above the threshold, the process proceeds to step S201.

  In step S205, the number-of-reception-users management unit 301 determines whether there is an in-vehicle video display device whose number of received users is less than the threshold. If there is an in-vehicle video display device less than the threshold, the process proceeds to step S206. If there is no in-vehicle video display device, the process proceeds to step S201 (S207).

  In step S206, the content control unit 302 controls the content recording unit 303 and the content distribution unit 304 to distribute the content distributed to the in-vehicle video display device with the smallest number of receiving users to the in-vehicle video display device with the largest number of receiving users. Change to the content delivered in. Thereafter, the process proceeds to step S201 (S207), and a series of operations is repeated.

  In the above, the information distribution system has been described by taking the case where the video display device is installed in the train as an example, but the use of this system is not limited to the train, for example, an exhibition hall introducing products, etc. It may be used in other facilities.

It is a figure which shows the structural example of an in-vehicle information delivery system. It is the flowchart which showed an example of the procedure which outputs the audio | voice signal corresponding to the video signal currently displayed on the vehicle interior video display apparatus in a portable terminal. It is a figure which shows the structural example of an in-vehicle information delivery system. It is the flowchart which showed an example of the information transmission / reception procedure in a delivery content control apparatus and an in-vehicle video display apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Portable terminal 101 ... Audio | voice signal channel information transmission / reception part 102 ... Control part 103 ... Audio | voice signal receiving part 104 ... Audio | voice signal decoding part 105 ... Audio | voice output part 106 ... Headphone 2 ... In-vehicle image display apparatus, DESCRIPTION OF SYMBOLS 201 ... Audio signal ch information transmission / reception part 201, 202 ... Content reception part, 203 ... Audio | voice signal transmission part, 204 ... Video signal decoding display part, 3 ... Distribution content control apparatus, 301 ... Receiving user number management part, 302 ... Content control , 303 ... content recording unit, 304 ... content distribution unit, 4 ... second in-vehicle video display device, 5 ... third in-vehicle video display device

Claims (10)

An information distribution system comprising a video display device and a portable terminal,
The video display device includes: a display unit that displays a video signal included in content; an audio signal transmission unit that transmits an audio signal included in the content; and a channel that indicates a channel through which the audio signal transmission unit transmits an audio signal. Channel information transmitting means for transmitting information,
The portable terminal outputs channel information receiving means for receiving channel information transmitted from the channel information transmitting means, audio signal receiving means for receiving audio signals, and audio signals received by the audio signal receiving means. Audio output means, control means for controlling the channel information receiving means, the audio signal receiving means and the audio output means,
The control means controls the audio signal receiving means so as to receive the audio signal transmitted by the audio signal transmitting means, using the channel information received by the channel information receiving means. system. An information distribution system comprising a content control device and a video display device,
The video display device includes a content receiving unit that receives content transmitted from the content control device, a display unit that displays a video signal included in the content received by the content receiving unit, and an audio included in the content. Audio signal transmitting means for transmitting a signal, channel information transmitting means for transmitting to the portable terminal channel information indicating a channel through which the audio signal transmitting means transmits an audio signal, and identification information for identifying the portable terminal from the portable terminal Identification information receiving means, detecting means for detecting the number of portable terminals receiving identification information by the identification information receiving means, and received number information relating to the number of portable terminals detected by the detecting means Transmission means for transmitting to the device,
The content control device includes: a content distribution unit that distributes content to the video display device; a reception unit that receives the reception number information from the video display device; and the video using the reception number information received by the reception unit. An information distribution system comprising: control means for controlling the content distribution means so as to change the content distributed to the display device. The information distribution system according to claim 2 has a plurality of the video display devices,
The plurality of video display devices include a first video display device and a second video display device, wherein the reception number information transmitted from the first video display device is equal to or greater than a predetermined threshold, When the received number information transmitted from the video display device is less than a predetermined threshold, the control means sends content similar to the content transmitted to the first video display device to the second video display device. An information distribution system for controlling the content distribution means to distribute the content.   4. The information distribution system according to claim 1, wherein the channel information transmission unit transmits the channel information with directivity within a predetermined range from the display unit. Display means for displaying a video signal included in the content, audio signal transmitting means for transmitting the audio signal included in the content, and channel information for transmitting channel information indicating a channel through which the audio signal transmitting means transmits the audio signal A portable terminal capable of receiving an audio signal from a video display device comprising a transmission means,
Channel information receiving means for receiving channel information transmitted from the channel information transmitting means;
An audio signal receiving means for receiving an audio signal;
Audio output means for outputting the audio signal received by the audio signal receiving means;
Control means for controlling the channel information receiving means, the audio signal receiving means and the audio output means,
The control means controls the audio signal receiving means to receive the audio signal transmitted by the audio signal transmitting means, using the channel information received by the channel information receiving means. . A portable terminal comprising means for receiving channel information of an audio signal and receiving and reproducing an audio signal transmitted on the channel;
Audio signal channel information transmitting / receiving means for transmitting / receiving audio signal channel information to / from the portable terminal, content receiving means for receiving distribution content, and audio signal channel information transmitting / receiving means for audio signals in the content received by the content receiving means An in-vehicle video display device comprising: an audio signal transmitting means for transmitting on a channel transmitted from a video signal decoding display means for decoding and displaying a video signal in the content received by the content receiving means;
An information distribution system using a portable terminal characterized by comprising:   7. The information distribution system according to claim 6, wherein an audio signal received by the portable terminal is transmitted as an FM signal, and channel information thereof is an FM frequency.   7. The information distribution system using a portable terminal according to claim 6, wherein a voice signal received by the portable terminal is transmitted by Bluetooth or wireless LAN, and the channel information is an identification code. Information distribution system. A portable terminal comprising means for receiving channel information of an audio signal and receiving and reproducing an audio signal transmitted on the channel;
Audio signal channel information transmission / reception means for transmitting audio signal channel information to / from the mobile terminal and receiving specific information of the mobile terminal, content receiving means for receiving distribution content, and audio in the content received by the content receiving means An in-vehicle video display device comprising: audio signal transmitting means for transmitting a signal through a channel transmitted from the audio signal channel information transmitting / receiving means; and video signal decoding display means for decoding and displaying a video signal in the content received by the content receiving means. When,
Receiving user number managing means for managing the number of users receiving audio signals transmitted from the audio signal transmitting means of the in-vehicle video display apparatus, and the in-vehicle video display apparatus according to the number of users managed by the receiving user number managing means A distribution content control device comprising content control means for switching content to be distributed to
An information distribution system using a portable terminal characterized by comprising:   10. The information distribution system using a portable terminal according to claim 9, wherein the unique information of the portable terminal received by the voice signal channel information transmitting / receiving means is a telephone number, an e-mail address, a MAC address, or a manufacturing number of the portable terminal. An information distribution system using a portable terminal characterized by the above.

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