JP6634172B1 - Program and system for transmitting / receiving digital information (message) to / from a short-range communication network - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a program capable of exchanging information by communicating over a short distance when the network environment is degraded or an emergency occurs, such as when a network goes down due to damage to an access point due to a disaster, or when a communication server is congested. A communication system including a terminal having a wireless communication function loaded with a program is obtained. A terminal having a short-range wireless communication function is provided with a program capable of performing a master / slave function, and the program is configured to be able to broadcast communication data even in a background state. In addition, a network system is constructed using these terminals. [Selection diagram] Fig. 1

Description

  The present invention relates to a program and a system for mutually distributing and receiving digital information formed by a portable communication terminal having a wireless communication function.

 Due to the spread of wireless networks, portable communication terminals with wireless communication functions have gained a very high penetration rate, and data exchange by wireless communication is not only a part of normal activities as well as corporate activities It has become. Since the spread of mobile phones, voice calls and mail services using communication networks provided by carriers have become widespread, and with the spread of WiFi services, it has become possible to send and receive large data files such as images and videos, not only for business, It is also indispensable for everyday life. However, when transmitting and receiving information via the Internet, a communication failure may occur due to concentrated access to a specific access point at the time of disaster or congestion, or a communication failure may occur due to a loss of power to the access point. In addition, transmission and reception of data in an infrastructure mode including a cellular phone network is charged, and when transmitting and receiving large data such as images and moving images, the economic burden on the user cannot be ignored. Furthermore, in the same area, when trying to obtain event information, weather information, disaster information, etc., if an infrastructure failure has occurred, even if the communication terminal has a short-range wireless communication function, If there is no other party that knows the communication terminal information within the range of the short-range wireless communication function, the information cannot be obtained by transmitting or receiving information.

  To solve such problems, slave devices provide data to the master device, which automatically communicates with other devices through its protocol when the other device comes in range. The user input message is displayed on the device, the device broadcasts it to other connected devices on the slave connection, the message received by the device on its master connection is displayed, and The message is rebroadcast to the connected device, the message is displayed for a limited period of time, and the message is received and rebroadcast to the connected device, using a short-range wireless communication protocol inserted from a device outside the network into the short-range wireless communication protocol network. Multiple computers Distributed Message transmission and reception method between devices (Patent Document 1) is known.

  However, in the above method, there is a problem that a program using the method needs to be in a foreground state, otherwise, a range to be broadcast is narrowed, and a range in which a message reaches is often limited.

JP 2017-536625 A

  The present invention has been made in view of such circumstances, and when a network environment is deteriorated or an emergency occurs, such as when a network is down due to damage to an access point due to a disaster, or when a communication server is congested, short-distance communication is possible. It is an object of the present invention to provide a program capable of communicating and exchanging information and a communication system including a terminal having a wireless communication function equipped with the program.

In order to meet such a purpose, a program according to the present invention is a program for transmitting and receiving digital information between terminals having a plurality of short-range wireless communication functions, and a short-range wireless communication within a communication range of short-range wireless communication. Connection request command transmitting means for transmitting a connection request command (invite) to any other terminal having a wireless communication function, and transmitting the connection request command when receiving a connection request command from any other terminal; Connection acceptance command transmission means for transmitting a connection acceptance command to another terminal, and when the terminal having the short-range wireless communication function detects another terminal having the short-range wireless communication function, the connection request command transmission means And a connection acceptance command transmission means configured to establish a communication network between a plurality of arbitrary terminals within a communication range of short-range wireless communication, Means for transmitting digital information (message) to the communication network to a specific address (UUID) as a destination, means for receiving the digital information (message), and address of the received digital information (message) If the (UUID) matches its own address (UUID), the received digital information (message) is displayed and the response information (response) is addressed to the terminal (UUID) of the terminal that transmitted the digital information (message). Means for transmitting the digital information (message) without displaying the received digital information (message) if the address (UUID) of the received digital information (message) does not match its own address (UUID). The digital information (message) is transmitted to the communication network with the address (UUID) of (message) as a destination. When in means for the background state for receiving the digital information (message), start the low power consumption communication mode manager obtains the connection in the terminal information, upon detecting a connection of a terminal, said received digital information (message) Means for transmitting the digital information (message) to the communication network, and adding the received digital information (message) to a retransmission message list when the connected terminal information is not detected, and adding it to the low power consumption communication manager. Means for transmitting the digital information (message) again to the communication network after a predetermined time has elapsed, and means for storing the digital information (message) transmitted again to the communication network in the terminal storage. It is characterized by the following.

  According to such a configuration, even when the access point cannot be accessed, it can be used as a chat, can transmit digital information (message) by designating a destination, and does not require any communication cost. When a destination is specified for communication, a message is not displayed on a terminal that is not the destination, and the program transmits and receives digital information (message) even in the background state, so that the communicable area can be expanded.

Further, in order to meet such an object, the program according to the present invention transmits the digital information (message) to the communication network with a specific address (UUID) as a destination until the predetermined time elapses. In a case where the response information (response message) is not received, a means for transmitting the same digital information (message) to the same address (UUID) again is further provided.

  According to such a configuration, it is possible to repeatedly transmit the digital information until it is confirmed that the digital information (message) specifying the destination is received.

Furthermore, in order to meet such an object, a program according to the present invention includes a program
Means for transmitting digital information (message) to the communication network without specifying a specific address (UUID) as a destination, and when the received digital information (message) does not specify a specific address (UUID) Means for displaying the received digital information (message) and transmitting the digital information (message) to the communication network without designating a specific address (UUID) as a destination. I do.

  According to such a configuration, the information sender can know whether or not the predetermined information sending purpose has been achieved, and in particular, can know whether or not a message specifying a destination of particular interest to the sender has been received.

In order to meet such a purpose, a program according to the present invention is configured such that the program
Means for obtaining an address (UUID) list of another terminal currently connected to the communication network, an address (UUID) list of another terminal connected to the communication network last time, and the obtained current address ( UUID) means for comparing and extracting the difference, and receiving the same digital information (message) and transmitting the digital information (message) to the communication network when the digital information (message) needs to be transmitted to the communication network. Means for designating a terminal address (UUID) as a destination and transmitting the digital information (message).

  According to such a configuration, duplicate transmission can be avoided even if a destination is specified or a destination is not specified.

  In addition, in order to meet such an object, the program according to the present invention is configured such that when the program receives the same digital information (message) to be displayed a plurality of times, the same digital information (message) is displayed. Is characterized by further comprising means for displaying only once.

  According to such a configuration, even if a plurality of terminals broadcast the same information, even if the same message is received a plurality of times, the same message can be displayed only once so as not to need to see the duplicated information.

  On the other hand, in order to respond to such a purpose, the program according to the present invention provides a real-time voice call between terminals having a short-range wireless communication function by communicating voice information between the terminals using the short-range wireless communication function. It is characterized by comprising means for performing.

  According to such a configuration, real-time voice communication can be performed.

On the other hand, in order to meet such an object, a network system according to the present invention includes a terminal having a plurality of short-range wireless communication functions, the terminal having a program having any of the functions described in [0007] to [0018]. However, by performing a master / slave function, it is characterized in that it is configured to extend beyond the radio coverage of a terminal having an individual short-range wireless communication function via a plurality of terminals.

  According to such a configuration, a communication network can be established between terminals equipped with the program according to the present invention even if there is a failure in the infrastructure of the access point, and communication costs are not required.

    As described above, according to the program and the system according to the present invention, when the network environment is deteriorated or an emergency occurs, such as when the network is down due to damage to the access point due to a disaster, or when the communication server is congested, short-distance communication is possible. An excellent effect is provided that it is possible to provide a program capable of communicating and exchanging information and a communication system including a terminal having a wireless communication function equipped with the program.

FIG. 1 is an image diagram of a communication system using an application-installed terminal. FIG. 2 is a flowchart showing the time of starting the application. FIG. 3 is a flowchart when the message relay terminal determines whether to broadcast the received message. FIG. 4 is a flowchart when relaying the destination designation message in the background state. FIG. 5 is a flowchart for preventing the same received message from being broadcast twice. FIG. 6 is a flowchart of a voice call in the foreground. FIG. 7 is a diagram illustrating session management in the application-equipped terminal.

  Since the present invention is configured as described above, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is an image diagram of a communication system by a terminal equipped with an application based on a program according to the present invention. A message 4 specifying a destination is transmitted from a message transmitting terminal 1 indicated by A in the figure, and a short-range wireless communication function of the message transmitting terminal A, for example, an ad hoc mode of Bluetooth (registered trademark) or Wi-Fi (registered trademark) is used. When the message relay terminal 2 within the communicable range receives the message 4, it broadcasts if the destination is not its own terminal. When the message 4 relayed in this way reaches the message destination terminal 3, the message destination terminal 3 receives the message and can confirm the contents. The message destination terminal 3 that has received the message 4 addressed to itself transmits a response message 4 (reception information), and the response message 4 reaches the message transmission terminal 1 via the message relay terminal 2 and the sender transmits his / her own message. It can be confirmed that the transmitted message 4 has been received.

  When the message destination terminal 3 is not within the range in which the message relay terminal 2 can relay the message 4 and a predetermined time during which the response message 4 is not received elapses, the message sending terminal 1 determines that the message 4 with the specified destination has not been received. Then, the message 4 is retransmitted.

  In this system, when the message 4 is transmitted without specifying the destination, the message 4 is sent to the terminal equipped with the application according to the program according to the present invention within a range where the message 4 can be relayed by the system. Is received, displayed on the terminal, and broadcast from the receiving terminal.

  FIG. 2 is a flowchart showing an algorithm when an application is started by the program according to the present invention. When the application is started, the low power consumption communication mode manager starts and checks whether the UUID of the terminal storage exists. If the UUID cannot be confirmed, a new UUID is created, saved in the terminal storage, and a message retransmission queue monitoring event is started.

  If the UUID can be confirmed in the terminal storage, the UUID is acquired from the terminal storage and a message retransmission queue confirmation event is started. The monitoring event of the message retransmission queue is executed at a predetermined time interval, for example, every three seconds, both when the UUID is newly acquired and the UUID is acquired from the terminal storage.

  When the monitoring event of the message resending queue is started, the session manager starts and various user operations become possible.

FIG. 3 is a flowchart showing an algorithm for determining whether to retransmit a message.
Once the message has been sent, the message is added to the resend message list, but once the response message is received, the sent message is deleted from the resend message list. When the response message is not received, the retransmission message list is monitored at a predetermined time, for example, every 5 seconds. If 10 seconds have not elapsed since the retransmission message was transmitted at the time of monitoring, the retransmission message list is not stored. Subsequently, when a terminal on which the application according to the present invention is installed is detected in an area where short-range wireless communication of the terminal is possible, a retransmission message is broadcast. If 10 seconds have elapsed since the retransmission message was transmitted at the time of monitoring, the message is deleted from the retransmission message list.

FIG. 4 is a flowchart when relaying the destination designation message in the background state.
When a message is received in the background state, the low-power-consumption communication mode manager starts up and acquires the connected terminal information. When a connected terminal is detected, the received message is broadcast to nearby terminals.

  If the connected terminal information is not detected, the received message is added to the retransmission message list, added to the low power communication manager, and broadcast again after a predetermined time has elapsed. The broadcast message is stored in the terminal storage.

FIG. 5 is a flowchart for preventing the same received message from being broadcast twice.
When a message is received, if the same message as the received message has been received, the list of currently connected users is obtained, and if there is a difference between the last related user and the currently connected user, a message is sent to the difference user Is transmitted, and if not, the process ends.

  If the same message as the received message has not been received, the message is stored in the terminal storage, and if the destination UUID of the message matches its own UUID, the message is displayed on the screen. If the destination UUID of the message matches its own UUID, if the destination UUID of the message does not match its own UUID, it broadcasts the message and adds it to the retransmission message list.

FIG. 6 is a flowchart of a voice call in the foreground.
Press the call button to send the call request information, notify the incoming call when the destination terminal receives the call request information, and if the destination terminal user presses the call button, the communication request permission information is sent to the sending terminal user, The call screen of both terminal users is displayed.
The audio input recording format and audio output of both terminals are set, the input / output stream of audio information is started, and when the audio buffer is input from the microphone, the acquired audio buffer is written to the input / output stream, and between the terminals. Real-time voice calls are made through the session manager.

FIG. 7 is a diagram illustrating session management in the application-equipped terminal.
At the first start-up, the top screen is started from the main session manager, and the short-range wireless communication function, in this embodiment, Bluetooth (registered trademark) processing is started. It acquires a UUID as a user name, generates its own terminal information in the Bluetooth (registered trademark) framework, and creates a session. After the session is created, the detection of the peripheral terminal is started, and the Bluetooth (registered trademark) initial setting is completed.

  When another terminal is detected, an invitation to the own session is sent, and when the invitation is accepted, the terminal information of the other party is added to the own session. This enables transmission of a message specifying a destination, and transmission and reception of messages via the Bluetooth (registered trademark) framework of both terminals.

  Transmission and reception of a chat-type message without specifying a destination can also be performed via the Bluetooth (registered trademark) framework, similarly to this session management. In the Wi-Fi (registered trademark) ad hoc mode, information can be transmitted and received in the same procedure.

1 Message originating terminal 2 Message relay terminal 3 Message destination terminal 4 Message

Claims (7)

A program for transmitting and receiving digital information between terminals having a plurality of short-range wireless communication functions,
Connection request command transmitting means for transmitting a connection request command (invite) to any other terminal having a short-range wireless communication function within a communication range of the short-range wireless communication;
When receiving a connection request command from any other terminal, a connection acceptance command transmitting means for transmitting a connection acceptance command to the other terminal that transmitted the connection request command,
When the terminal having the short-range wireless communication function detects another terminal having the short-range wireless communication function, the terminal is within the communication range of the short-range wireless communication by the connection request command transmitting unit and the connection acceptance command transmitting unit. Is configured to establish a communication network between a plurality of arbitrary terminals,
The program is
Means for transmitting digital information (message) to the communication network with a specific address (UUID) as a destination;
Means for receiving the digital information (message);
When the address (UUID) of the received digital information (message) matches its own address (UUID), the received digital information (message) is displayed and the address of the terminal that transmitted the digital information (message) is displayed. (UUID) to send response information (response message),
If the address (UUID) of the received digital information (message) does not match its own address (UUID), the received digital information (message) is not displayed and the address (UUID) of the digital information (message) is not displayed. as a destination, upon receiving the digital information (message) in means and the background state of transmitting the digital information (message) to the communication network, low power consumption communication mode manager starts, obtains the connection in the terminal information Upon detecting the connection of the terminal, means for transmitting the digital information received said digital information (message) to the communication network (message),
If the connected terminal information is not detected, the received digital information (message) is added to a retransmission message list and added to the low power consumption communication manager, and after a predetermined time elapses, the digital information (message) is again transmitted to the communication network. ) Means to send
Means for storing the digital information (message) transmitted to the communication network again in a terminal storage. The program is
After transmitting digital information (message) to the communication network with a specific address (UUID) as a destination, if the response information (response message) is not received until a predetermined time has elapsed, the same address (UUID) is used. The program according to claim 1, further comprising: means for transmitting the same digital information (message) again as a destination. The program is
Means for transmitting digital information (message) to the communication network without specifying a specific address (UUID) as a destination;
If the received digital information (message) does not designate a specific address (UUID), the received digital information (message) is displayed and the digital information (message) is addressed to a specific address (UUID). The program according to claim 1, further comprising: a unit configured to transmit the communication network to the communication network without specifying the communication network. The program is
Means for acquiring an address (UUID) list of another terminal currently connected to the communication network,
Means for comparing the address (UUID) list of the other terminal previously connected to the communication network with the obtained current address (UUID) list and extracting a difference;
When the same digital information (message) is received and the digital information (message) needs to be transmitted to the communication network, the terminal (UUID) of the terminal corresponding to the difference is designated as a destination, and the digital The program according to any one of claims 1 to 3, further comprising: means for transmitting information (message). The program is
5. The method according to claim 1, further comprising: means for displaying the same digital information (message) only once when the same digital information (message) that needs to be displayed is received a plurality of times. The program described in section. 6. A device for real-time voice communication between terminals having a short-range wireless communication function by communicating voice information between the terminals by the short-range wireless communication function . The program described in one paragraph . A terminal having a plurality of short-range wireless communication functions loaded with the program according to any one of claims 1 to 6 performs a master / slave function, whereby individual short-range wireless communication is performed via the plurality of terminals. A network system, wherein the network system is configured to extend beyond a wireless reach of a terminal having a communication function.