JP2020123793A - Program and system for transmitting and receiving digital information (message) to/from short-range communication network - Google Patents

Abstract

To provide a program that can perform short-range communication and exchange information at a time of network environment deterioration or emergency such as a network down caused by damage or the like to an access point due to disaster or congestion of a communication server, and a communication system including a terminal having a wireless communication function equipped with the program.SOLUTION: Terminals having a short-range wireless communication function are equipped with a program that can perform a master/slave function, and the program is configured to be able to broadcast communication data even in a background state. Furthermore, a network system is built with the terminals.SELECTED DRAWING: Figure 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 widespread use of wireless networks, portable communication terminals with wireless communication functions have gained a very high penetration rate, and data exchange by wireless communication is usually used as part of normal life as well as business activities. It has become. Since the spread of mobile phones, voice calls and mail services using communication networks provided by carriers have spread, and due to the spread of Wi-Fi services, large data files such as images and videos can be sent and received, not only for business, It has become an essential part of everyday life. However, in transmitting and receiving information via the Internet, access may be concentrated at a specific access point at the time of disaster or congestion, and communication failure may occur, or communication failure may occur due to power loss of the access point. In addition, there is a charge for sending and receiving infrastructure mode data including a mobile phone network, and when sending and receiving large amounts of data such as images and moving images, the financial burden on the user cannot be ignored. Furthermore, when trying to obtain event information, weather information, disaster information, etc. within the same area, if an infrastructure failure occurs, even if the communication terminal has a short-range wireless communication function, If there is no other party who knows the communication terminal information within the range of the short-range wireless communication function, the above information cannot be obtained by transmitting or receiving the information.

To solve such problems, a slave device provides data to a master device, which automatically makes master and slave connections with them when other devices come in range through that protocol. Established, user-entered messages are displayed on the device, the device broadcasts on slave connections to other connected devices, and messages received by that device on its master connection are displayed, as well as other messages. Rebroadcast to the connected device, the message is displayed for a limited time, the message is received and rebroadcast to the connected device, and the device outside the network uses the short-range wireless communication protocol to insert into the short-range wireless communication protocol network. A distributed message transmission/reception method (Patent Document 1) between a plurality of computer devices is known.

However, the above method has a problem that the program using the method needs to be in the foreground state, otherwise the broadcast range is narrow and the message reach range 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 a network down caused by damage to an access point due to a disaster, congestion of a communication server, or the like, in a short distance. An object of the present invention is to provide a communication system including a program capable of communicating and exchanging information and a terminal equipped with the program and having a wireless communication function.

In order to meet such an object, a program according to the present invention is a program for transmitting and receiving digital information between a plurality of terminals having a short-range wireless communication function, and a communication network between terminals having a short-range wireless communication function. To connect to a communication network by broadcasting a connection command to a communication network without specifying a specific broadcast address as a destination, and to a communication network between terminals that has been broadcast without specifying a specific broadcast address as a destination. Specify the method to connect to the communication network when receiving the connection command, the method to display the digital information transmitted from the terminal that broadcast without specifying the specific broadcast address as the destination, and the specific broadcast address as the destination. A method of broadcasting digital information transmitted from a terminal without specifying a specific broadcast address as a destination, and a command to connect a communication network between terminals to a specific broadcast address as a destination for communication. A means for connecting to the network, a means for connecting to the communication network when a command for connecting to the communication network between terminals having a short-range wireless communication function, which is broadcast to a specific broadcast address, is received, and a specific broadcast A digital signal sent from a terminal with short-range wireless communication function when the destination of a connection command to a communication network between terminals with short-range wireless communication function that is broadcast to an address matches the own broadcast address. When the destination of the connection command to the communication network between the means for displaying information and the terminal having the short-distance wireless communication function, which is broadcast to a specific broadcast address, does not match its own broadcast address, A means for broadcasting to a specific broadcast address as a destination without displaying digital information transmitted from a terminal having a communication function, and a short-range wireless communication function that is broadcast in the background state to a specific broadcast address as a destination. Means for displaying digital information transmitted from the terminal having the short-range wireless communication function by the manager in the low power consumption mode when the destination of the connection command to the communication network between the provided terminals matches its own broadcast address, Address a specific broadcast address in the background When the destination of the connection command to the communication network between the terminals having the short-distance wireless communication function broadcasted earlier does not match its own broadcast address, the terminal having the short-distance wireless communication function by the manager in the low power consumption mode It is characterized by comprising means for broadcasting to a specific broadcast address as a destination without displaying the digital information transmitted from.

With such a configuration, even when the access point is inaccessible, it can be used as a chat and can send a message by specifying a destination, and there is no communication cost, and the destination can be specified. A message is not displayed on a terminal that is not the destination when communicating by means of communication, and since the program broadcasts even in the background state, the communicable area can be expanded.

Further, in order to meet such an object, the program according to the present invention, when the same digital information is received a plurality of times with respect to digital information broadcast to a communication network between terminals having a short-range wireless communication function, , A means for displaying the same information only once is provided.

According to such a configuration, since a plurality of terminals broadcast the same information, even if the same message is received a plurality of times, it is possible to display the same message only once so that duplicate information does not have to be seen.

Further, in order to meet such an object, the program according to the present invention broadcasts the reception of digital information when receiving the digital information broadcast to a communication network between terminals having a distance wireless communication function. It is characterized by comprising means.

With such a configuration, the information sender can know whether or not the predetermined information transmission purpose has been achieved, and in particular, whether or not a message designating a destination of high interest to the sender has been received.

Then, in order to meet such an object, the program according to the present invention, when the broadcasted digital information is not broadcast to the communication network between the terminals having the short-distance wireless communication function, the same digital It is characterized by comprising means for retransmitting the information.

With such a configuration, it is possible to repeat redialing until it is confirmed that the message with the designated destination is received.

In addition, in order to meet such an object, the program according to the present invention provides a real-time voice call by communicating voice information between terminals having a short-distance wireless communication function. Is provided.

With such a configuration, it is possible to make a real-time voice call.

On the other hand, in order to meet such an object, in a network system according to the present invention, a terminal equipped with a program equipped with the functions described in [0007] to [0016] and equipped with a plurality of short-range wireless communication functions is a master. / By performing the slave function, it is configured to exceed the wireless range of a terminal having an individual short-range wireless communication function via a plurality of terminals.

With such a configuration, a communication network can be constructed 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 no communication cost is incurred.

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

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

Since the present invention has the above-described configuration, the embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an image diagram of a communication system using a terminal equipped with an application according to the program of the present invention. A message 4 having a destination is transmitted from a message transmitting terminal 1 shown by A in the figure, and a short-distance 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 thus relayed reaches the message destination terminal 3, the message destination terminal 3 can receive the message and confirm the content. Upon receiving the message 4 addressed to itself, the message destination terminal 3 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 originator determines that 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 response message 4 has not been received, the message transmission terminal 1 determines that the message 4 with the destination specified has not been received. Then, the message 4 is retransmitted.

In this system, when the message 4 is transmitted without designating the destination, the message 4 is transmitted to all terminals equipped with the applications according to the program according to the present invention within the range in which 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 flow chart showing an algorithm when an application is started by the program according to the present invention. When you start the application, the low power consumption communication mode manager starts and confirms the existence of the UUID of the terminal storage. If the UUID cannot be confirmed, create a new UUID, save it in the terminal storage, and start a monitoring event of the message resend queue.

If the UUID can be confirmed in the terminal storage, the UUID is obtained from the terminal storage and a confirmation event of the message resend queue is started. Even when the UUID is newly acquired for the first time and when the UUID is acquired from the terminal storage, the message retransmission queue monitoring event is executed at predetermined time intervals, for example, every 3 seconds.

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

FIG. 3 is a flowchart showing an algorithm for determining whether or not to retransmit a message.
After sending the message, the message is once added to the resend message list, but when the reply message is received, the sent message is deleted from the resend message list. If no response message is received, the resend message list is monitored every predetermined time, for example, every 5 seconds. If 10 seconds have not passed since the resend message was sent at the time of monitoring, the resend message list is not saved in the resend message list. Subsequently, when a terminal in which the application according to the present invention is installed is detected in an area where short-distance wireless communication is possible, the retransmission message is broadcast. If 10 seconds have passed since the retransmission message was sent at the time of monitoring, it is deleted from the retransmission message list.

FIG. 4 is a flowchart for 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 is activated and the connected terminal information is acquired. When the connected terminal is detected, the received message is broadcast to the peripheral terminals.

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

FIG. 5 is a flowchart for preventing duplicate broadcasting of the same received message.
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 previously related user and the currently connected user, the message is sent to the difference user. Is sent, and if not, the process ends.

If the same message as the received message has not been received, the message is saved in the terminal storage and the message is displayed on the screen if the destination UUID of the message matches with its own UUID. If the destination UUID of the message matches its own UUID, and if the destination UUID of the message does not match its own UUID, broadcast the message and add it to the resend message list.

FIG. 6 is a flowchart of a voice call in the foreground.
Specify the destination Press the call button to send the call request information, when the destination terminal receives the call request information, notify the incoming call, if the destination terminal user presses the call button, the communication request permission information is sent to the sending terminal user, The call screens of both terminal users are 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, Real-time voice calls are made through the session manager.

FIG. 7 is a diagram showing session management in the application-installed terminal.
At the time of first activation, the top screen is activated from the main session manager to start the short-range wireless communication function, which is Bluetooth (registered trademark) processing in this embodiment. It acquires the UUID as the 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 peripheral terminals is started, and the Bluetooth (registered trademark) initialization is completed.

When it detects another terminal, it sends an invitation to its session and, if the invitation is accepted, adds the other party's terminal information to its session. With this, it becomes possible to send a message designating the other party, and the message is sent/received via the Bluetooth (registered trademark) framework of both terminals.

In the same manner as this session management, it is possible to send and receive a chat-type message without designating the other party via the Bluetooth (registered trademark) framework. Also, in the ad-hoc mode of WIFI (registered trademark), it is possible to send and receive information in the same procedure.

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

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 widespread use of wireless networks, portable communication terminals with wireless communication functions have gained a very high penetration rate, and data exchange by wireless communication is usually used as part of normal life as well as business activities. It has become. Since the spread of mobile phones, voice calls and mail services using communication networks provided by carriers have spread, and with the spread of Wi-Fi services, large data files such as images and videos can be sent and received, not only for business, It has become an essential part of everyday life. However, in transmitting and receiving information via the Internet, access may be concentrated at a specific access point at the time of a disaster or congestion, and communication failure may occur, or communication failure may occur due to power loss of the access point. Also, there is a charge for sending and receiving infrastructure mode data including a mobile phone network, and when sending and receiving large amounts of data such as images and moving images, the financial burden on the user cannot be ignored. Furthermore, when trying to obtain event information, weather information, disaster information, etc. within the same area, if an infrastructure failure occurs, even if the communication terminal has a short-range wireless communication function, If there is no other party who knows the communication terminal information within the range of the short-range wireless communication function, the above information cannot be obtained by transmitting or receiving the information.

To solve such problems, a slave device provides data to a master device, which automatically makes master and slave connections with them when other devices come in range through that protocol. Established, user-entered messages are displayed on the device, that device broadcasts on slave connections to other connected devices, and messages received by that device on its master connection are displayed and Rebroadcast to the connected device, the message is displayed for a limited period of time, the message is received and rebroadcast to the connected device, and the device outside the network uses the short-range wireless communication protocol to insert into the short-range wireless communication protocol. A distributed message transmission/reception method (Patent Document 1) between a plurality of computer devices is known.

However, the above method has a problem that the program using the method needs to be in the foreground state, otherwise the broadcast range is narrow and the message reach range 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 a network down caused by damage to an access point due to a disaster, congestion of communication servers, or the like, a short distance An object of the present invention is to provide a communication system including a program capable of communicating and exchanging information and a terminal equipped with the program and having a wireless communication function.

In order to meet such an object, 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. A connection request command transmitting means for transmitting a connection request command (invitation) to any other terminal having a wireless communication function, and a connection request command transmitted when a connection request command is received from any other terminal. Connection acceptance command transmitting 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 transmitting means And the connection acceptance command transmission means is configured to build a communication network between a plurality of arbitrary terminals within the communication range of short-range wireless communication, the program, a specific address (UUID) as a destination, A means for transmitting digital information (message) to the communication network, a means for receiving the digital information (message), and an address (UUID) of the received digital information (message) matches its own address (UUID). In this case, a means for displaying the received digital information (message) and transmitting response information (response message) to the address (UUID) of the terminal that has transmitted the digital information (message), and the received digital information If the address (UUID) of the (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 used as the destination. When the digital information (message) is received in the background with the means for transmitting the digital information (message) to the communication network , the low power consumption communication mode manager is activated to acquire the connected terminal information. Upon detecting the connection of a terminal, it said received digital information and means for transmitting the digital information (message) (message) to the communication network, if not detected the connection in the terminal information, the received said digital information (message) Add a retransmission message list, is added to the low power consumption communication manager, and means for transmitting the digital information (message) back to the network after a predetermined time, the digital information transmitted back to the communication network Means for saving the (message) in the terminal storage.

According to such a configuration, even when the access point is inaccessible, it can be used as a chat and can send digital information ( message ) by designating a destination, and the communication cost is unnecessary, and When the communication is performed by designating the destination, the message is not displayed on the terminal which is not the destination, and the program transmits and receives the digital information (message) even in the background state, so that the communicable area can be expanded.

In addition, in order to meet such an object, the program according to the present invention uses a specific address (UUID) as a destination, after transmitting digital information (message) to the communication network, until a predetermined time elapses. When the response information (response message) is not received, it is characterized by further comprising means for retransmitting the same digital information (message) to the same address (UUID) as a destination .

With such a configuration, it is possible to repeat redialing until it is confirmed that the digital information ( message ) specifying the destination has been received.

Further, in order to meet such an object, the program according to the present invention is
A means for transmitting digital information (message) to the communication network without specifying a specific address (UUID) as a destination, and the received digital information (message) does not specify a specific address (UUID ) Further comprising 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. To do.

With such a configuration, the information sender can know whether or not the predetermined information transmission purpose has been achieved, and in particular, whether or not the message designating the destination of high interest to the sender has been received.

In order to meet such an object, the program according to the present invention is
A means for acquiring an address (UUID) list of another terminal currently connected to the communication network, an address (UUID) list of another terminal previously connected to the communication network, and the acquired current address ( It corresponds to the difference when it is necessary to receive the same digital information (message) and to transmit the same digital information (message) to the communication network with a means for comparing the UUID) list and extracting the difference. It further comprises means for designating an address (UUID) of the terminal as a destination and transmitting the digital information (message) .

According to such a configuration , duplicate transmission can be avoided regardless of whether a destination is designated or not .

Moreover, in order to meet such purpose, the program according to the present invention, the program, when the same digital information that needs to be displayed (message) received a plurality of times, for the same digital information (message) Is further provided with a means for displaying only once.

According to such a configuration, since a plurality of terminals broadcast the same information, even if the same message is received a plurality of times, it is possible to display the same message only once so that duplicate information does not have to be seen.

On the other hand, in order to meet such an object, the program according to the present invention makes a real-time voice call by communicating voice information between terminals having a short-distance wireless communication function. It is characterized by comprising means for performing.

With such a configuration, it is possible to make a real-time voice call.

On the other hand, in order to meet such an object, in the network system according to the present invention, a terminal equipped with a program equipped with the functions described in [0007] to [0018] and equipped with a plurality of short-range wireless communication functions is a master. / By performing the slave function, it is configured to exceed the wireless range of a terminal having an individual short-range wireless communication function via a plurality of terminals.

With such a configuration, a communication network can be constructed 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 no communication cost is incurred.

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

FIG. 1 is an image diagram of a communication system using an application-installed terminal. FIG. 2 is a flowchart showing when the application is activated. FIG. 3 is a flowchart when the message relay terminal determines whether to broadcast the received message. FIG. 4 is a flowchart for relaying the destination designation message in the background state. FIG. 5 is a flow chart for preventing duplicate broadcasting of the same received message. FIG. 6 is a flowchart of a voice call in the foreground. FIG. 7 is a diagram showing session management in the application-installed terminal.

Since the present invention has the above-mentioned configuration, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an image diagram of a communication system using a terminal equipped with an application based on the program according to the present invention. A message 4 having a destination is transmitted from a message transmitting terminal 1 shown by A in the figure, and a short-distance 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 thus relayed reaches the message destination terminal 3, the message destination terminal 3 can receive the message and confirm the content. Upon receiving the message 4 addressed to itself, the message destination terminal 3 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 originator determines that 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 response message 4 has not been received, the message transmission terminal 1 determines that the message 4 with the destination specified has not been received. Then, the message 4 is retransmitted.

In this system, when the message 4 is transmitted without designating the destination, the message 4 is transmitted to all terminals equipped with the applications according to the program according to the present invention within the range in which 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 flow chart showing an algorithm when an application is started by the program according to the present invention. When you start the application, the low power consumption communication mode manager starts and confirms the existence of the UUID of the terminal storage. If the UUID cannot be confirmed, create a new UUID, save it in the terminal storage, and start a monitoring event of the message resend queue.

If the UUID can be confirmed in the terminal storage, the UUID is obtained from the terminal storage and a confirmation event of the message resend queue is started. Even when the UUID is newly acquired for the first time and when the UUID is acquired from the terminal storage, the message retransmission queue monitoring event is executed at predetermined time intervals, for example, every 3 seconds.

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

FIG. 3 is a flowchart showing an algorithm for determining whether or not to retransmit a message.
After sending the message, the message is once added to the resend message list, but when the reply message is received, the sent message is deleted from the resend message list. If no response message is received, the resend message list is monitored every predetermined time, for example, every 5 seconds. If 10 seconds have not passed since the resend message was sent at the time of monitoring, the resend message list is not saved. Subsequently, when a terminal in which the application according to the present invention is installed is detected in an area where short-distance wireless communication of the terminal is possible, a retransmission message is broadcast. If 10 seconds have passed since the retransmission message was sent at the time of monitoring, it is deleted from the retransmission message list.

FIG. 4 is a flowchart for 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 is activated and the connected terminal information is acquired. When the connected terminal is detected, the received message is broadcast to the peripheral terminals.

When the connected terminal information is not detected, the received message is added to the resend message list, added to the low power consumption communication manager, and re-broadcast after a predetermined time has elapsed. The broadcast message is stored in the terminal storage.

FIG. 5 is a flowchart for preventing duplicate broadcasting of the same received message.
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 previously related user and the currently connected user, the message is sent to the difference user. Is sent, and if not, the process ends.

If the same message as the received message has not been received, the message is saved in the terminal storage and the message is displayed on the screen if the destination UUID of the message matches with its own UUID. If the destination UUID of the message matches its own UUID, and if the destination UUID of the message does not match its own UUID, broadcast the message and add it to the resend message list.

FIG. 6 is a flowchart of a voice call in the foreground.
Designate the destination Press the call button to send call request information, when the destination terminal receives the call request information, notify the incoming call, if the destination terminal user presses the call button, the communication request permission information is sent to the sending terminal user, The call screens of both terminal users are 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, Real-time voice calls are made through the session manager.

FIG. 7 is a diagram showing session management in the application-installed terminal.
At the time of first activation, the top screen is activated from the main session manager to start the short-range wireless communication function, which is Bluetooth (registered trademark) processing in this embodiment. It acquires the UUID as the 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 peripheral terminals is started, and the Bluetooth (registered trademark) initialization is completed.

When it detects another terminal, it sends an invitation to its session and, if the invitation is accepted, adds the other party's terminal information to its session. With this, it becomes possible to send a message designating the other party, and the message is sent/received via the Bluetooth (registered trademark) framework of both terminals.

The chat format message can be sent and received without specifying the destination via the Bluetooth (registered trademark) framework as in the session management. In addition, in the ad-hoc mode of WIFI (registered trademark), information can be transmitted and received in the same procedure.

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

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 widespread use of wireless networks, portable communication terminals with wireless communication functions have gained a very high penetration rate, and data exchange by wireless communication is usually used as part of normal life as well as business activities. It has become. Since the spread of mobile phones, voice calls and mail services using communication networks provided by carriers have spread, and due to the spread of Wi-Fi services, large data files such as images and videos can be sent and received, not only for business, It has become an essential part of everyday life. However, in transmitting and receiving information via the Internet, access may be concentrated at a specific access point at the time of disaster or congestion, and communication failure may occur, or communication failure may occur due to power loss of the access point. In addition, there is a charge for sending and receiving infrastructure mode data including a mobile phone network, and when sending and receiving large amounts of data such as images and moving images, the financial burden on the user cannot be ignored. Furthermore, when trying to obtain event information, weather information, disaster information, etc. within the same area, if an infrastructure failure occurs, even if the communication terminal has a short-range wireless communication function, Unless there is a person who knows the communication terminal information within the range of the short-range wireless communication function, the above information cannot be obtained by transmitting or receiving the information.

To solve such problems, a slave device provides data to a master device, which automatically makes master and slave connections with them when other devices come in range through that protocol. Established, user-entered messages are displayed on the device, the device broadcasts on slave connections to other connected devices, and messages received by that device on its master connection are displayed, as well as other messages. Rebroadcast to the connected device, the message is displayed for a limited time, the message is received and rebroadcast to the connected device, and the device outside the network uses the short-range wireless communication protocol to insert into the short-range wireless communication protocol network. A distributed message transmission/reception method (Patent Document 1) between a plurality of computer devices is known.

However, the above method has a problem that the program using the method needs to be in the foreground state, otherwise the broadcast range is narrow and the message reach range 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 a network down caused by damage to an access point due to a disaster, congestion of a communication server, or the like, in a short distance. An object of the present invention is to provide a communication system including a program capable of communicating and exchanging information and a terminal equipped with the program and having a wireless communication function.

In order to meet such an object, 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. A connection request command transmitting means for transmitting a connection request command (invitation) to any other terminal having a wireless communication function; and a connection request command transmitted when a connection request command is received from any other terminal. Connection acceptance command transmitting 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 transmitting means And the connection acceptance command transmission means is configured to build a communication network between a plurality of arbitrary terminals within the communication range of short-range wireless communication, the program, a specific address (UUID) as a destination, A means for transmitting digital information (message) to the communication network, a means for receiving the digital information (message), and an address (UUID) of the received digital information (message) matches its own address (UUID). In this case, a means for displaying the received digital information (message) and transmitting response information (response message) to the address (UUID) of the terminal that has transmitted the digital information (message), and the received digital information If the address (UUID) of the (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 used as the destination. When the digital information (message) is received in the background state with the means for transmitting the digital information (message) to the communication network, the low power consumption communication mode manager is activated, the connected terminal information is acquired, and the connected terminal is displayed. Upon detection, a means for transmitting the received digital information (message) to the communication network and means for transmitting the received digital information (message) to the communication network. And a means for transmitting the digital information (message) to the communication network again after a predetermined time has elapsed, and the digital information (message) transmitted again to the communication network. Means for storing in the terminal storage.

According to such a configuration, even when the access point is inaccessible, it can be used as a chat and can send digital information (message) by designating a destination, and the communication cost is unnecessary, and When the communication is performed by designating the destination, the message is not displayed on the terminal which is not the destination, and the program transmits and receives the digital information (message) even in the background state, so that the communicable area can be expanded.

In addition, in order to meet such an object, the program according to the present invention uses the specific address (UUID) as a destination and transmits the digital information (message) to the communication network until a predetermined time elapses. When the response information (response message) is not received, it is characterized by further comprising means for retransmitting the same digital information (message) to the same address (UUID) as a destination.

With such a configuration, it is possible to repeat redialing until it is confirmed that the digital information (message) specifying the destination has been received.

Further, in order to meet such an object, the program according to the present invention is
A means for transmitting digital information (message) to the communication network without designating a specific address (UUID) as a destination, and a case where the received digital information (message) does not designate a specific address (UUID) Further comprising 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. To do.

With such a configuration, the information sender can know whether or not the predetermined information transmission purpose has been achieved, and in particular, whether or not the message designating the destination of high interest to the sender has been received.

In order to meet such an object, the program according to the present invention is
A means for acquiring an address (UUID) list of another terminal currently connected to the communication network, an address (UUID) list of another terminal previously connected to the communication network, and the acquired current address ( Means for extracting the difference by comparing with the UUID) list, and receiving the same digital information (message) and corresponding to the difference when it is necessary to send the digital information (message) to the communication network It further comprises means for designating an address (UUID) of the terminal as a destination and transmitting the digital information (message).

According to such a configuration, duplicate transmission can be avoided regardless of whether a destination is designated or not.

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

According to such a configuration, since a plurality of terminals broadcast the same information, even if the same message is received a plurality of times, it is possible to display the same message only once so that duplicate information does not have to be seen.

On the other hand, in order to meet such an object, the program according to the present invention makes a real-time voice call by communicating voice information between terminals having a short-distance wireless communication function. It is characterized by comprising means for performing.

With such a configuration, it is possible to make a real-time voice call.

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

With such a configuration, a communication network can be constructed 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 no communication cost is incurred.

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

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

Since the present invention has the above-described configuration, the embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an image diagram of a communication system using a terminal equipped with an application according to the program of the present invention. A message 4 designated by a destination is transmitted from the message transmitting terminal 1 shown by A in the figure, and a short-distance 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 thus relayed reaches the message destination terminal 3, the message destination terminal 3 can receive the message and confirm the content. Upon receiving the message 4 addressed to itself, the message destination terminal 3 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 originator determines that 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 response message 4 has not been received, the message transmission terminal 1 determines that the message 4 with the destination specified has not been received. Then, the message 4 is retransmitted.

In this system, when the message 4 is transmitted without designating the destination, the message 4 is transmitted to all terminals equipped with the applications according to the program according to the present invention within the range in which 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 flow chart showing an algorithm when an application is started by the program according to the present invention. When you start the application, the low power consumption communication mode manager starts and confirms the existence of the UUID of the terminal storage. If the UUID cannot be confirmed, create a new UUID, save it in the terminal storage, and start a monitoring event of the message resend queue.

If the UUID can be confirmed in the terminal storage, the UUID is obtained from the terminal storage and a confirmation event of the message resend queue is started. Even when the UUID is newly acquired for the first time and when the UUID is acquired from the terminal storage, the message retransmission queue monitoring event is executed at predetermined time intervals, for example, every 3 seconds.

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

FIG. 3 is a flowchart showing an algorithm for determining whether or not to retransmit a message.
After sending the message, the message is once added to the resend message list, but when the reply message is received, the sent message is deleted from the resend message list. If no response message is received, the resend message list is monitored every predetermined time, for example, every 5 seconds. If 10 seconds have not passed since the resend message was sent at the time of monitoring, the resend message list is not saved. Subsequently, when a terminal in which the application according to the present invention is installed is detected in an area where short-distance wireless communication of the terminal is possible, a retransmission message is broadcast. If 10 seconds have passed since the retransmission message was sent at the time of monitoring, it is deleted from the retransmission message list.

FIG. 4 is a flowchart for 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 is activated and the connected terminal information is acquired. When the connected terminal is detected, the received message is broadcast to the peripheral terminals.

When the connected terminal information is not detected, the received message is added to the resend message list, added to the low power consumption communication manager, and re-broadcast after a predetermined time has elapsed. The broadcast message is stored in the terminal storage.

FIG. 5 is a flowchart for preventing duplicate broadcasting of the same received message.
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 previously related user and the currently connected user, the message is sent to the difference user. Is sent, and if not, the process ends.

If the same message as the received message has not been received, the message is saved in the terminal storage, and if the destination UUID of the message matches with its own UUID, the message is displayed on the screen. If the destination UUID of the message matches its own UUID, and if the destination UUID of the message does not match its own UUID, broadcast the message and add it to the resend message list.

FIG. 6 is a flowchart of a voice call in the foreground.
Specify the destination Press the call button to send the call request information, when the destination terminal receives the call request information, notify the incoming call, if the destination terminal user presses the call button, the communication request permission information is sent to the sending terminal user, The call screens of both terminal users are 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, Real-time voice calls are made through the session manager.

FIG. 7 is a diagram showing session management in the application-installed terminal.
At the time of first activation, the top screen is activated from the main session manager to start the short-range wireless communication function, which is Bluetooth (registered trademark) processing in this embodiment. It acquires the UUID as the 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 peripheral terminals is started, and the Bluetooth (registered trademark) initialization is completed.

When it detects another terminal, it sends an invitation to its session and, if the invitation is accepted, adds the other party's terminal information to its session. With this, it becomes possible to send a message designating the other party, and the message is sent/received via the Bluetooth (registered trademark) framework of both terminals.

In the same manner as this session management, it is possible to send and receive a chat-type message without designating the other party via the Bluetooth (registered trademark) framework. Also, in the ad-hoc mode of WIFI (registered trademark), it is possible to send and receive information in the same procedure.

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

Claims (6)

A program for transmitting and receiving digital information between terminals having a plurality of short-range wireless communication functions,
Means for connecting to the communication network by broadcasting a connection command to the communication network between terminals having the distance wireless communication function without designating a specific broadcast address as a destination;
Means for connecting to the communication network when receiving a connection command to the communication network between the terminals, which is broadcast without designating the specific broadcast address as a destination,
Means for displaying digital information transmitted from the terminal that has broadcast without specifying the specific broadcast address as a destination;
Means for broadcasting the digital information transmitted from the terminal, which has been broadcast without designating the specific broadcast address as a destination, without designating a specific broadcast address as a destination;
Means for connecting to the communication network by broadcasting a connection command to the communication network between the terminals with a specific broadcast address as a destination;
Means for connecting to the communication network when a connection command to the communication network between the terminals having the short-range wireless communication function, which has been broadcast with the specific broadcast address as a destination, is received,
When the destination of the connection command to the communication network between the terminals having the short-range wireless communication function, which has been broadcast with the specific broadcast address as the destination, matches the own broadcast address, the short-range wireless communication function is provided. Means for displaying the digital information transmitted from the terminal,
When the destination of the connection command to the communication network between the terminals having the short-range wireless communication function, which is broadcast with the specific broadcast address as the destination, does not match its own broadcast address, the short-range wireless communication function is provided. Means for broadcasting to the specific broadcast address as a destination without displaying the digital information transmitted from the terminal,
Low power consumption mode when the destination of the connection command to the communication network between the terminals having the short-range wireless communication function, which is broadcast in the background state with the specific broadcast address as the destination, matches its own broadcast address. Means for displaying digital information transmitted from the terminal having the short-range wireless communication function by the manager of
Low power consumption mode when the destination of the connection command to the communication network between the terminals having the short-range wireless communication function, which is broadcast in the background state with the specific broadcast address as the destination, does not match its own broadcast address. Means for broadcasting to the specific broadcast address as a destination without displaying the digital information transmitted from the terminal having the short-range wireless communication function by the manager of
A program comprising: Regarding the digital information broadcast to the communication network between the terminals having the short-range wireless communication function, when the same digital information is received a plurality of times, a means for displaying the same information only once is provided. The program according to claim 1. 3. When the digital information broadcast to a communication network between terminals having the short-range wireless communication function is received, a unit for broadcasting the reception of the digital information is provided. The listed program. The digital information broadcasted to a communication network between terminals having the short-range wireless communication function is provided, and when the received information is not broadcast, the same digital information is retransmitted. The program according to claim 3. A short-distance wireless communication function is provided, comprising means for making a real-time voice call by communicating voice information between the terminals having the short-distance wireless communication function by the short-distance wireless communication function. Program for terminals. A terminal having a plurality of short-range wireless communication functions equipped with the program according to any one of claims 1 to 5 to perform a master/slave function, and thus a terminal having an individual short-range wireless communication function via the plurality of terminals. A network system characterized by being configured beyond the reach of wireless communication.