WO2016084275A1 - 無線通信端末 - Google Patents
無線通信端末 Download PDFInfo
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- WO2016084275A1 WO2016084275A1 PCT/JP2015/003618 JP2015003618W WO2016084275A1 WO 2016084275 A1 WO2016084275 A1 WO 2016084275A1 JP 2015003618 W JP2015003618 W JP 2015003618W WO 2016084275 A1 WO2016084275 A1 WO 2016084275A1
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- Prior art keywords
- wireless communication
- data
- communication terminal
- activation
- range
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/82—Protecting input, output or interconnection devices
- G06F21/85—Protecting input, output or interconnection devices interconnection devices, e.g. bus-connected or in-line devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
- H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
- H04W52/028—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the present invention relates to a movable wireless communication terminal.
- DTN Delay / Disruption-Tolerant Network
- Epidemic routing is a data transfer method that propagates data while complementing differential data based on each other's data holding information when a communication terminal is connected to another terminal by wireless communication. .
- FIG. 1A shows a pull-type data transfer method of epidemic routing.
- a summary vector (listed information) that is a list of contents (holding information) that is stored in the terminal itself (
- SVM” Sudmary Vector Message
- each terminal A and B can grasp
- the terminal B requests the terminal A for data that the terminal A owns but does not own the terminal B based on the SVM (step S2).
- terminal A transmits content, which is data held by terminal A, to terminal B (step S3).
- the terminal B can hold the data held by the terminal A and can synchronize data with the terminal A.
- FIG. 1B shows a push type data transfer method of epidemic routing.
- SVMs are exchanged in the same manner as described above (step S11).
- the terminal A transmits data that the terminal B does not have to the terminal B based on the SVM (step S12). That is, in the Push type, unlike the above-described Pull type, the terminal A transmits data to the terminal B even if there is no request from the terminal B. Thereby, the terminal B can hold the data held by the terminal A and can synchronize data with the terminal A.
- the epidemic routing described above is desirably used in an ad hoc mode as a wireless network setting in an environment where a wireless communication terminal can move freely.
- a wireless communication terminal can configure a peer-to-peer type link using short-range wireless communication without an access point, and does not need to establish an association and can establish a session at high speed. Because.
- data can be relayed and transmitted by short-range wireless communication while accumulating data between moving wireless communication terminals.
- FIG. 2 even in a situation where there are wireless communication terminals such as mobile phone terminals A1 to A6 that can move, as shown by arrows in FIG.
- Data can be transmitted to the communication terminal.
- the other terminals A2-A4 can be relayed and eventually the data can be synchronized. Become.
- an object of the present invention is to provide a wireless communication terminal that can solve the above-described problem of increased power consumption.
- a wireless communication terminal is A short-range wireless communication unit that performs short-range wireless communication with other wireless communication terminals within the range of short-range wireless communication;
- a data storage unit for storing predetermined data;
- a data synchronization unit that synchronizes data by transmitting and receiving data stored in the data storage unit by short-range wireless communication with other wireless communication terminals;
- An activation control unit that activates the activation target configuration including at least the data synchronization unit to synchronize data by being activated at the same time as the activation of the activation target configuration installed in another wireless communication terminal;
- the configuration is as follows.
- the program which is the other form of this invention is: Equipped in a wireless communication terminal comprising a short-range wireless communication unit that performs short-range wireless communication with other wireless communication terminals within the range of short-range wireless communication, and a data storage unit that stores predetermined data To the control unit, A data synchronization unit that synchronizes data by transmitting and receiving data stored in the data storage unit by short-range wireless communication with other wireless communication terminals; and An activation control unit that activates the activation target configuration including at least the data synchronization unit to synchronize data by being activated at the same time as the activation of the activation target configuration equipped in another wireless communication terminal; To realize, The configuration is as follows.
- an information processing method includes: A wireless communication terminal comprising a short-range wireless communication unit that performs short-range wireless communication with another wireless communication terminal within the range of short-range wireless communication, and a data storage unit that stores predetermined data, By sending and receiving data stored in the data storage unit by short-range wireless communication with other wireless communication terminals, data synchronization is obtained,
- the activation target configuration including at least the data synchronization unit is activated to synchronize data by being activated at the same time as the activation of the activation target configuration equipped in another wireless communication terminal.
- the configuration is as follows.
- the present invention can reduce the power consumption of the wireless communication terminal by being configured as described above.
- FIG. 1 It is a sequence diagram which shows the operation
- FIG. 3 is a block diagram illustrating a configuration of the wireless communication terminal
- FIGS. 4 to 5 are diagrams illustrating operations of the wireless communication terminal.
- the wireless communication terminal A in the present embodiment is a movable information processing apparatus such as a mobile phone terminal.
- Other wireless communication terminals have the same configuration.
- the wireless communication terminal A in the present invention is not limited to being a mobile phone terminal, and may be any information processing apparatus. Further, the wireless communication terminal A may be an information processing apparatus used alone, or may be an information processing apparatus used in conjunction with another apparatus or incorporated in another apparatus.
- the wireless communication terminal A in the present embodiment first includes a short-range wireless communication unit 10 that performs short-range wireless communication with other wireless communication terminals within the range of short-range wireless communication.
- short-range wireless communication realized by the short-range wireless communication unit 10 is different from wireless communication performed with a mobile base station, according to wireless communication standards such as Wi-Fi (Wireless Fidelity) and Bluetooth (registered trademark).
- Wireless communication performed between wireless communication terminals.
- the near field communication may be performed according to any standard.
- the wireless communication terminal A includes an arithmetic device such as a CPU (Central Processing Unit) and a storage device such as an SSD (Solid State Drive). As shown in FIG. 3, the wireless communication terminal A includes a data generation unit 11, an SVM transmission / reception unit 13, a data transmission / reception unit 14, a synchronization completion detection unit 15, a power source, which are constructed by incorporating a program into the arithmetic device. A control unit 16 and a time synchronization unit 17 are provided. In addition, the wireless communication terminal A includes a data storage unit 12 formed in a storage device.
- arithmetic device such as a CPU (Central Processing Unit)
- a storage device such as an SSD (Solid State Drive).
- the wireless communication terminal A includes a data generation unit 11, an SVM transmission / reception unit 13, a data transmission / reception unit 14, a synchronization completion detection unit 15, a power source, which are constructed by incorporating a program into the arithmetic device.
- the data generation unit 11 generates data based on the status of the wireless communication terminal A and data based on information input to the terminal A, and stores the data in the data storage unit 12. For example, data generated by the data generation unit 11 is measured by a movement history based on position information acquired by a GPS (Global Positioning System) equipped in the wireless communication terminal A or by a predetermined sensor connected to the terminal A. Information indicating the operating status of the device on which the terminal A is mounted. The data generated by the data generation unit 11 is distinguished as one content data in a predetermined unit, for example, the generated daily unit, and stored in the data storage unit 12.
- GPS Global Positioning System
- the SVM transmission / reception unit 13, the data transmission / reception unit 14, and the synchronization completion detection unit 15 function as a data synchronization unit that performs data synchronization with another wireless communication terminal B using the epidemic routing described above.
- the SVM transmission / reception unit 13, the data transmission / reception unit 14, and the synchronization completion detection unit 15 that function as a data synchronization unit are activated by a power supply control unit 16 as described later. That is, the SVM transmission / reception unit 13, the data transmission / reception unit 14, and the synchronization completion detection unit 15 are activated when an activation command is issued by the power supply control unit 16, and enter a sleep state (non-activation state) when an activation stop command is issued. .
- SVM Summary Vector
- Message a message including a summary vector (Summary Vector) that is a list of data stored in the data storage unit 12 (hereinafter, “SVM” (Summary Vector). Message)) is transmitted to the short-range wireless communication range via the short-range wireless communication unit 10.
- SVM Summary Vector
- the SVM transmission / reception unit 13 exchanges SVMs with other wireless communication terminals within the short-range wireless communication range at any timing thereafter. For example, when data transmission / reception is performed by the data transmission / reception unit 14 or when the data in the data storage unit 12 is updated, the wireless communication terminal B may be connected at a constant interval while it is in the activated state. And SVM exchange by short-range wireless communication.
- the data transmission / reception unit 14 compares the SVM of the own terminal A with the SVMs of the other terminals B based on the SVM exchange result performed by the SVM transmission / reception unit 13 described above. 12 determines whether or not to transmit and receive data stored in 12. For example, the terminal A requests data not owned by the terminal A to the other terminal B, and receives data transmitted from the other terminal B in response to the request, and stores it in the data storage unit 12. Alternatively, in response to a request from another terminal B, the own terminal A transmits data stored in the data storage unit 12 or is owned by the own terminal A regardless of whether there is a request. Data that B does not have is transmitted to the terminal B. In this way, data is synchronized with another terminal B located in the range of short-range wireless communication.
- the synchronization completion detection unit 15 detects the completion of data synchronization with another terminal B located in the short-range wireless communication range based on the SVM exchange result by the SVM transmission / reception unit 13 described above, Notify the control unit 16. Specifically, comparing the SVM of the own terminal A and the SVM from the other terminal B, the data synchronization has been completed when the data held by the own terminal A and the other terminal B match. Is detected. The synchronization completion detection unit 15 also notifies the power supply control unit 16 that the SVM transmission / reception unit 13 has transmitted / received the SVM, in particular, that the SVM has been transmitted.
- the time synchronization unit 17 manages the internal time of the wireless communication terminal A, and sets the internal time using, for example, GPS. Thereby, the internal time of the wireless communication terminal A is synchronized with the internal time set in the other terminal B. In addition, you may perform the synchronization of the time of each terminal using another method.
- the power supply control unit 16 functions as an activation control unit that controls the activation state of a preset activation target configuration including at least the SVM transmission / reception unit 13 and the data transmission / reception unit 14 that function as the data synchronization unit described above.
- the activation target configuration includes other configurations excluding the power supply control unit 16.
- the power supply control unit 16 activates the activation target configuration from the sleep state to the activation state when a preset time elapses based on the internal time managed by the time synchronization unit 17. That is, the power supply control part 16 starts a starting object structure periodically.
- the sleep state refers to a state in which the operation is performed with less power than the activation state, or a state in which power is not supplied to the activation target configuration.
- the terminals A and B capable of short-range wireless communication perform short-range wireless communication with each other, exchange SVMs, and synchronize data.
- the time synchronization unit 17 described above is not necessarily provided, and the time may be slightly shifted between the wireless communication terminals A and B. Even in such a case, the wireless communication terminals A and B are activated at the same time when the activation target configuration is activated by the power supply control unit 16. Note that, in the wireless communication terminals A and B, it is only necessary that the activation target configuration is activated within the period in which the data synchronization processing is being performed.
- the simultaneous period includes that the activation period of the wireless communication terminal A and the activation period of the wireless communication terminal B overlap, and the overlapping period is equal to or longer than the time required for synchronization. Furthermore, in the same period, the activation timing of the wireless communication terminal A and the activation timing of the wireless communication terminal B are different, and the transition timing of the wireless communication terminal A to the sleep state (non-activation state) and the wireless communication terminal B It is only necessary that the start-up periods of the wireless communication terminals A and B overlap, including that the transition timing to the sleep state differs.
- the power supply control unit 16 sets the activation target configuration including the SVM transmission / reception unit 13 and the data transmission / reception unit 14 to the sleep state (non-activation) State). At this time, the power supply control unit 16 confirms that the data stored in both the terminals A and B are synchronized because the SVM of the own terminal A matches the SVM received from the other terminal B. The sleep state is set.
- the activation target configuration activated by the power supply control unit 16 is a configuration in which data synchronization is performed and processing for confirming that the synchronization is completed is executed.
- the power supply control unit 16 in the present embodiment further activates the own terminal A after transmitting the SVM from the own terminal A to other terminals within the short-range wireless communication range. Put the target configuration to sleep. By doing in this way, it can control that other terminals in a near field communication range cannot check data synchronization.
- the SVM may be transmitted a predetermined number of times and then set in a sleep state. In this manner, by transmitting the SVM a plurality of times, other wireless communication terminals can confirm data synchronization more reliably.
- FIG. 4 is a flowchart showing the operation of the wireless communication terminals A and B alone.
- FIG. 5 is a sequence diagram showing an operation between wireless communication terminals.
- the wireless communication terminal A stores data X, Y, and Z in the data storage unit 12 mounted on its own terminal
- the wireless communication terminal B It is assumed that data X and Y are stored in the data storage unit 12 mounted on the terminal.
- the wireless communication terminals A and B are both synchronized in time, and are set so that the activation target configuration including the SVM transmission / reception unit 13 and the data transmission / reception unit 14 is activated in the same cycle, that is, the same time.
- the wireless communication terminal A and the wireless communication terminal B are simultaneously activated from the sleep state (step S22 in FIG. 4).
- the configuration activated in both terminals A and B is a configuration to be activated including at least the SVM transmission / reception unit 13 and the data transmission / reception unit 14 that execute processing for synchronizing data and confirming that the synchronization is completed.
- the activation target configuration may include other configurations.
- the activated wireless communication terminals A and B perform short-range wireless communication with each other by being positioned within the range of short-range wireless communication with each other.
- the terminals A and B receive each other the SVM sent to the range of the short-range wireless communication, and request the data that the terminal does not have to the other .
- the wireless communication terminal B requests the data Z from the wireless communication terminal A (step S35).
- the wireless communication terminal A transmits the data Z held by itself A to the other wireless communication terminal B (step S36 in FIG. 5), and the wireless communication terminal B receives the received data Z Is stored in the data storage unit 12 of the terminal B (step S37 in FIG. 5).
- data X, Y, and Z are stored in the wireless communication terminal B as well as the wireless communication terminal A, and data synchronization is achieved between the wireless communication terminals A and B (FIG. 4). Step S24).
- the wireless communication terminals A and B that have transmitted and received data based on the exchanged SVM exchange the SVM again (steps S38 and S39 in FIG. 5).
- the wireless communication terminals A and B confirms that the data synchronization has been completed by the SVM exchange
- the wireless communication terminals A and B set the activation target configuration including at least the SVM transmission / reception unit 13 and the data transmission / reception unit 14 to the sleep state (non-activation state).
- each of the wireless communication terminals A and B further transmits an SVM from its own terminal to the short-range wireless communication range, and then sets the activation target configuration to the sleep state.
- the wireless communication terminal A confirms data synchronization by the SVM reception in step S38. Thereafter, after the wireless communication terminal A further transmits SVM (step S39), (Step S40).
- the wireless communication terminal B confirms data synchronization by SVM transmission / reception in steps S38 and S39, but after that, the uncommunication communication terminal B further transmits SVM (step S41), and then enters a sleep state (step S41). Step S42).
- the wireless communication terminal automatically activates the activation target configuration and repeats the data synchronization described above.
- data can be relayed between wireless communication terminals as shown in FIG. Data can also be transmitted to a remote terminal located outside the range of short-range wireless communication.
- the wireless communication terminals A and B that are mobile bodies are periodically activated at the same timing to synchronize data. For this reason, it is not always necessary to start up, and it is possible to save power by suppressing a decrease in the battery. Further, it is possible to suppress that the wireless communication terminals A and B are always turned off, and data can be transmitted to a remote terminal.
- the wireless communication terminals A and B again set the activated configuration to be activated to the sleep state (non-activated state). As described above, since it is activated only during the data synchronization process, further power saving can be achieved.
- data synchronization may be performed simultaneously with three or more wireless communication terminals.
- data synchronization is performed by exchanging SVMs and transmitting data between all wireless communication terminals that are simultaneously started and capable of short-range wireless communication, and the data held by all wireless communication terminals match. Later, it goes to sleep.
- FIG. 6 is a block diagram illustrating a configuration of the wireless communication terminal
- FIGS. 7 to 9 are diagrams illustrating operations of the wireless communication terminal.
- the wireless communication terminal A in the present embodiment is different from the above-described first embodiment in the configuration for performing data synchronization, that is, the method of starting up the startup target configuration including at least the SVM transmission / reception unit 13 and the data transmission / reception unit 14. For this reason, the wireless communication terminal A in the present embodiment has substantially the same configuration as that of the first embodiment, but the function of the power supply control unit 16 is different, and a new data management unit as shown in FIG. 18 and an activation message transmission / reception unit 19.
- the data management unit 18 and the message transmission / reception unit 19 are realized by incorporating a program into an arithmetic device equipped in the wireless communication terminal A.
- the data management unit 18 manages changes in data stored in the data storage unit 12. Specifically, the data generation unit 11 detects that the data stored in the data storage unit 12 has been generated, and notifies the power supply control unit 16 that the data in the data storage unit 12 has changed. To do.
- the power control unit 16 When the power control unit 16 receives a notification from the data management unit 18 that the data in the data storage unit 12 has changed, the power control unit 16 activates the activation target configuration including at least the SVM transmission / reception unit 13 and the data transmission / reception unit 14. At this time, the power supply control unit 16 activates not only the activation target configuration of the own terminal A but also the activation target configurations of other wireless communication terminals B located in the short-range wireless communication range at substantially the same time, that is, at the same time. Control as follows. Specifically, the power supply control unit 16 transmits a wakeup message, which is a signal for instructing activation, to another wireless communication terminal B within the short-range wireless communication range via the activation message transmission / reception unit 19. At this time, the wakeup message is transmitted by broadcast, but may be transmitted by any method.
- the activation message transmission / reception unit 19 is configured to always receive a wakeup message from another wireless communication terminal B.
- the activation message transmission / reception unit 19 receives a wakeup message from another terminal B, the activation message transmission / reception unit 19 notifies the power supply control unit 16, and the power supply control unit 16 activates the activation target configuration of the own terminal A.
- all wireless communication terminals located within the short-range wireless communication range are activated to synchronize data. It is operating.
- the power control unit 16 the data management unit 18, the activation message
- the transmission / reception unit 19 is always activated, and these configurations are not included in the activation target configuration.
- the data management unit 18 does not always have to be activated, and the data management unit 18 may be included in the activation target configuration.
- FIG. 7 is a flowchart showing the operation of the wireless communication terminal A alone
- FIG. 8 is a flowchart showing the operation of the wireless communication terminal B alone
- FIG. 9 is a sequence diagram showing operations between wireless communication terminals.
- the wireless communication terminals A and B store the same data X and Y, and then the wireless communication terminal A newly holds the data Z Will be explained.
- step S51 in FIG. 7: Yes, step S71 in FIG. 9 When the wireless communication terminal A in the sleep state newly holds the data Z and changes in the stored data (step S51 in FIG. 7: Yes, step S71 in FIG. 9), at least the own terminal A
- the activation target configuration including the SVM transmission / reception unit 13 and the data transmission / reception unit 14 is activated (step S52 in FIG. 7 and step S72 in FIG. 9).
- the wireless communication terminal A transmits a Wakeup message to another wireless communication terminal B within the short-range wireless communication range (step S53 in FIG. 7 and step S73 in FIG. 9).
- the wireless communication terminal A may first start the configuration to be started after transmitting a wakeup message.
- step S61 in FIG. 8 When the wireless communication terminal B that is in the sleep state and is located within the short-range wireless communication range of the wireless communication terminal A receives the wakeup message (step S61 in FIG. 8: Yes), at least the SVM transmission / reception unit of the own terminal B 13 and the data transmission / reception unit 14 are activated (step S62 in FIG. 8 and step S74 in FIG. 9). As a result, the wireless communication terminals A and B are activated at substantially the same timing, that is, at the same time.
- the wireless communication terminals A and B that are mobile bodies are activated at the same time and triggered to synchronize data in response to changes in the data that they hold. I'm taking it. For this reason, it is not always necessary to start up, and it is possible to save power by suppressing a decrease in the battery. Moreover, it can suppress that the radio
- the wireless communication terminals A and B again set the activated configuration to be activated to the sleep state (non-activated state). For this reason, since it has started only at the time of a data synchronous process, the further power saving can be aimed at efficiently.
- FIG. 10 is a diagram illustrating the configuration and operation of the wireless communication terminal according to the present embodiment.
- the wireless communication terminals A1-A6 in this embodiment have the same configuration as that described in the above-described embodiments.
- Each wireless communication terminal A1-A6 is mounted on each vehicle C1-C6.
- Each wireless communication terminal A1-A6 and each vehicle C1-C6 have the same configuration, but may have different configurations.
- the data generation unit 11 collects or generates data representing the situation of the vehicle C ⁇ b> 1 and stores it in the data storage unit 12.
- the data generated by the data generation unit 11 is information such as a movement history based on position information acquired by the GPS installed in the vehicle C1, an engine usage status (such as the number of revolutions) of the vehicle C1, and a travel distance. is there.
- the power control unit 16 of the wireless communication terminal A1 is configured to operate regardless of the state of the vehicle C1. For example, even when the engine of the vehicle C1 is stopped, as described in the first and second embodiments, the activation target configuration is activated in response to a certain period or data generation.
- the wireless communication terminal A1 according to the present invention by mounting the wireless communication terminal A1 according to the present invention on the vehicle C1, even when the vehicle C1 is moving around or stopped, it is activated at the same time as other terminals and transmits data. Can do. As a result, it is possible to perform relay transmission by short-range wireless communication while accumulating data between wireless communication terminals mounted on a moving vehicle, and a remote vehicle located outside the range of short-range wireless communication Data can also be transmitted to other terminals. For example, as indicated by the arrows in FIG. 10, even if the vehicle C1 and the vehicle C6 cannot be directly communicated by short-range wireless communication, the wireless communication terminals A2-A4 mounted on the other vehicles C2-C4. In any case, the same data can be held as the data is propagated.
- a short-range wireless communication unit that performs short-range wireless communication with other wireless communication terminals within the range of short-range wireless communication;
- a data storage unit for storing predetermined data;
- a data synchronization unit that synchronizes data by transmitting and receiving data stored in the data storage unit by short-range wireless communication with other wireless communication terminals; and
- An activation control unit that activates the activation target configuration including at least the data synchronization unit to synchronize data by being activated at the same time as the activation of the activation target configuration installed in another wireless communication terminal; , Wireless communication terminal.
- the wireless communication terminal performs short-range wireless communication with the other wireless communication terminal.
- the wireless communication terminal transmits / receives data to / from other wireless communication terminals by short-range wireless communication, and synchronizes the data stored therein.
- other wireless communication terminals that have synchronized data can also propagate data to wireless communication terminals located far away by synchronizing data with another wireless communication terminal by short-range wireless communication.
- the wireless communication terminal activates the activation target configuration including at least the data synchronization unit that operates when data synchronization is performed at the same time as the activation target configuration of the other wireless communication terminals to synchronize the data. .
- the wireless communication terminal can be activated at the same time as another wireless communication terminal to synchronize data. For this reason, it is not always necessary to start up, and it is possible to save power by suppressing a decrease in the battery. In addition, it is possible to suppress that the own terminal and other terminals are always powered off, and data can be appropriately transmitted to a distant terminal, so that data transmission efficiency can be improved.
- the wireless communication terminal is periodically activated with other wireless communication terminals to synchronize data. As a result, it is possible to transmit data appropriately while reducing the power consumption of the wireless communication terminal.
- the activation control unit is configured to make the activation target configuration equipped in the terminal the same as activation of the activation target configuration equipped in another wireless communication terminal in accordance with a change in data stored in the data storage unit. Starting at the time, Wireless communication terminal.
- the wireless communication terminal is activated with another wireless communication terminal at the timing when the stored data changes, and synchronizes the data.
- the wireless communication terminal according to attachment 6 wherein The activation control unit receives a list of data stored in the other wireless communication terminal from another wireless communication terminal within the range of short-range wireless communication and confirms data synchronization in the data synchronization unit Then, after transmitting a list of data stored in the terminal to other wireless communication terminals within the range of short-range wireless communication, the activation target configuration is set to a non-activated state. Wireless communication terminal.
- the wireless communication terminal sets the activation target configuration such as the data synchronization unit to the non-activated state.
- the wireless communication terminal receives a list of data from another wireless communication terminal, confirms the synchronization of the data, and further transmits the data list of its own terminal to the other wireless communication terminal, and then is in a non-activated state. It becomes.
- other wireless communication terminals can surely confirm the synchronization of data with the own terminal, and then can enter a non-activated state, thereby saving power.
- Appendix 10 A wireless communication terminal according to any one of appendices 1 to 9, The data synchronization unit synchronizes data by epidemic routing. Wireless communication terminal.
- the wireless communication terminal when the activation target configuration such as the data synchronization unit is activated, the wireless communication terminal transmits / receives a list of data stored with other wireless communication terminals by a method such as epidemic routing, for example. And synchronize the data. Thereby, it is possible to efficiently perform data transmission while saving power.
- the wireless communication terminal according to any one of appendices 1 to 10,
- the activation target configuration includes a configuration in which data is synchronized with other wireless communication terminals and processing for confirming the synchronization is executed.
- Wireless communication terminal
- a wireless communication terminal according to any one of appendices 1 to 11, The wireless communication terminal is mounted on the vehicle, The activation control unit operates regardless of the state of the vehicle. Wireless communication terminal.
- Appendix 13 A vehicle equipped with the wireless communication terminal according to any one of appendices 1 to 11.
- the above-described wireless communication terminal by mounting the above-described wireless communication terminal on a vehicle, even if the vehicle is moving or in a stopped state, it can be activated and transmit data simultaneously with other terminals. . Thereby, data of a plurality of vehicles can be efficiently collected with power saving.
- a wireless communication terminal comprising a short-range wireless communication unit that performs short-range wireless communication with other wireless communication terminals within the range of short-range wireless communication, and a data storage unit that stores predetermined data To the control unit, A data synchronization unit that synchronizes data by transmitting and receiving data stored in the data storage unit by short-range wireless communication with other wireless communication terminals; and An activation control unit that activates the activation target configuration including at least the data synchronization unit to synchronize data by being activated at the same time as the activation of the activation target configuration equipped in another wireless communication terminal; A program to realize
- Appendix 15 The program according to appendix 14, wherein The activation control unit activates the activation target configuration at a preset cycle. program.
- the program according to appendix 14 or 15, The activation control unit is configured to make the activation target configuration equipped in the terminal the same as activation of the activation target configuration equipped in another wireless communication terminal in accordance with a change in data stored in the data storage unit. Starting at the time, program.
- Appendix 17 A program according to any one of appendices 14 to 16, When the data synchronization unit completes data synchronization by another data communication unit within the range of short-range wireless communication with the data synchronization unit, the activation control unit sets the activation target configuration to a non-activated state. program.
- a wireless communication terminal comprising a short-range wireless communication unit that performs short-range wireless communication with another wireless communication terminal within the range of short-range wireless communication, and a data storage unit that stores predetermined data, By sending and receiving data stored in the data storage unit by short-range wireless communication with other wireless communication terminals, data synchronization is obtained,
- the activation target configuration including at least the data synchronization unit is activated to synchronize data by being activated at the same time as the activation of the activation target configuration equipped in another wireless communication terminal.
- Appendix 19 The information processing method according to appendix 18, wherein The activation target configuration is activated to synchronize data by activating at a preset cycle, Information processing method.
- Appendix 20 The information processing method according to appendix 18 or 19, In response to a change in data stored in the data storage unit, the activation target configuration equipped in the terminal is activated at the same time as activation of the activation target configuration equipped in another wireless communication terminal. Information processing method.
- Appendix 21 An information processing method according to any one of appendices 18 to 20, When data synchronization between the own terminal and another wireless communication terminal within the range of short-range wireless communication is completed, the activation target configuration is set to a non-activated state. Information processing method.
- the above-described program is stored in a storage device or recorded on a computer-readable recording medium.
- the recording medium is a portable medium such as a flexible disk, an optical disk, a magneto-optical disk, and a semiconductor memory.
- Short-range wireless communication unit 11 Data generation unit 12
- Data storage unit 13 SVM transmission / reception unit 14
- Data transmission / reception unit 15 Synchronization completion detection unit 16
- Power supply control unit 17 Time synchronization unit 18
- Data management unit 19 Activation message transmission / reception unit 100
- Wireless communication terminal 101 Short-range wireless communication unit 102
- Data storage unit 103 Data synchronization unit 104
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Abstract
Description
近距離無線通信の範囲内で他の無線通信端末と相互に近距離無線通信を行う近距離無線通信部と、
所定のデータを記憶するデータ記憶部と、
前記データ記憶部に記憶されたデータを他の無線通信端末と近距離無線通信により送受信することで、データの同期をとるデータ同期部と、
少なくとも前記データ同期部を含む起動対象構成を、他の無線通信端末に装備された前記起動対象構成の起動と同時期に起動してデータの同期をとるよう作動させる起動制御部と、を備えた、
という構成をとる。
近距離無線通信の範囲内で他の無線通信端末と相互に近距離無線通信を行う近距離無線通信部と、所定のデータを記憶するデータ記憶部と、を備えた無線通信端末に装備された制御装置に、
前記データ記憶部に記憶されたデータを他の無線通信端末と近距離無線通信により送受信することで、データの同期をとるデータ同期部と、
少なくとも前記データ同期部を含む起動対象構成を、他の無線通信端末に装備された前記起動対象構成の起動と同時期に起動してデータの同期をとるよう作動させる起動制御部と、
を実現させる、
という構成をとる。
近距離無線通信の範囲内で他の無線通信端末と相互に近距離無線通信を行う近距離無線通信部と、所定のデータを記憶するデータ記憶部と、を備えた無線通信端末が、
前記データ記憶部に記憶されたデータを他の無線通信端末と近距離無線通信により送受信することで、データの同期をとると共に、
少なくとも前記データ同期部を含む起動対象構成を、他の無線通信端末に装備された前記起動対象構成の起動と同時期に起動してデータの同期をとるよう作動させる、
という構成をとる。
本発明の第1の実施形態を、図3乃至図5を参照して説明する。図3は、無線通信端末の構成を示すブロック図であり、図4乃至図5は、無線通信端末の動作を示す図である。
図3に示すように、本実施形態における無線通信端末Aは、まず、近距離無線通信の範囲内で他の無線通信端末と相互に近距離無線通信を行う近距離無線通信部10を備えている。ここで、近距離無線通信部10によって実現される近距離無線通信は、携帯基地局と行う無線通信とは異なり、Wi-Fi(Wireless Fidelity)や、Bluetooth(登録商標)といった無線通信規格により、無線通信端末間で行う無線通信である。なお、近距離無線通信は、いかなる規格で行うものであってもよい。
次に、上述した無線通信端末A及びBの動作を、図4乃至図5を参照して説明する。図4は、無線通信端末A及びB単体の動作を示すフローチャートである。図5は、無線通信端末間の動作を示すシーケンス図である。
次に、本発明の第2の実施形態を、図6乃至図9を参照して説明する。図6は、無線通信端末の構成を示すブロック図であり、図7乃至図9は、無線通信端末の動作を示す図である。
本実施形態における無線通信端末Aは、データ同期を行うための構成、つまり、少なくともSVM送受信部13やデータ送受信部14を含む起動対象構成を起動する方法が、上述した実施形態1とは異なる。このため、本実施形態における無線通信端末Aは、実施形態1のものとほぼ同様の構成を有するものの、電源制御部16の機能が異なり、かつ、図6に示すように、新たにデータ管理部18と起動メッセージ送受信部19を備えている。このデータ管理部18及びメッセージ送受信部19は、無線通信端末Aに装備された演算装置にプログラムが組み込まれることで実現されている。
次に、上述した無線通信端末A及びBの動作を、図7乃至図9を参照して説明する。図7は、無線通信端末A単体の動作を示すフローチャートであり、図8は、無線通信端末B単体の動作を示すフローチャートである。図9は、無線通信端末間の動作を示すシーケンス図である。
次に、本発明の第3の実施形態を、図10を参照して説明する。図10は、本実施形態における無線通信端末の構成及び動作を示す図である。
上記実施形態の一部又は全部は、以下の付記のようにも記載されうる。以下、本発明における無線通信装置(図11参照)、プログラム、情報処理方法の構成の概略を説明する。但し、本発明は、以下の構成に限定されない。
近距離無線通信の範囲内で他の無線通信端末と相互に近距離無線通信を行う近距離無線通信部と、
所定のデータを記憶するデータ記憶部と、
前記データ記憶部に記憶されたデータを他の無線通信端末と近距離無線通信により送受信することで、データの同期をとるデータ同期部と、
少なくとも前記データ同期部を含む起動対象構成を、他の無線通信端末に装備された前記起動対象構成の起動と同時期に起動してデータの同期をとるよう作動させる起動制御部と、を備えた、
無線通信端末。
付記1に記載の無線通信端末であって、
前記起動制御部は、予め設定された周期で前記起動対象構成を起動する、
無線通信端末。
付記2に記載の無線通信端末であって、
前記起動制御部は、他の無線通信端末と時刻の同期を行うと共に、当該同期された時刻に基づいて予め設定された周期で前記起動対象構成を起動する、
無線通信端末。
付記1乃至3のいずれかに記載の無線通信端末であって、
前記起動制御部は、前記データ記憶部に記憶されたデータの変化に応じて、自端末に装備された前記起動対象構成を、他の無線通信端末に装備された前記起動対象構成の起動と同時期に起動する、
無線通信端末。
付記4に記載の無線通信端末であって、
前記起動制御部は、前記データ記憶部に記憶されたデータに変化が生じると、自端末の前記起動対象構成を起動すると共に、前記無線通信部を介して他の無線通信端末の前記起動対象構成を起動する信号を発信する、
無線通信端末。
付記1乃至5のいずれかに記載の無線通信端末であって、
前記起動制御部は、前記データ同期部にて、近距離無線通信の範囲内の他の無線通信端末と前記データ同期部によるデータの同期が完了すると、前記起動対象構成を非起動状態とする、
無線通信端末。
付記6に記載の無線通信端末であって、
前記起動制御部は、前記データ同期部にて、近距離無線通信の範囲内の他の無線通信端末から当該他の無線通信端末が記憶しているデータのリストを受信してデータの同期を確認し、その後、近距離無線通信の範囲内の他の無線通信端末に対して自端末に記憶されているデータのリストを送信してから、前記起動対象構成を非起動状態とする、
無線通信端末。
付記1乃至5のいずれかに記載の無線通信端末であって、
前記データ同期部は、前記起動制御部により起動されたときに、近距離無線通信の範囲内の他の無線通信端末と相互に近距離無線通信して、自端末の前記データ記憶部に記憶されているデータと他の無線通信端末の前記データ記憶部に記憶されているデータとを比較すると共に、当該データを送受信してデータの同期をとる、
無線通信端末。
付記8に記載の無線通信端末であって、
前記データ同期部は、前記起動制御部により起動されたときに、近距離無線通信の範囲内の他の無線通信端末と相互に近距離無線通信して、自端末の前記データ記憶部に記憶されているデータのリストを他の無線通信端末に送信し、及び/または、他の無線通信端末から当該他の無線通信端末の前記データ記憶部に記憶されているデータのリストを受信して、前記リストに基づいてデータを送受信してデータの同期をとる、
無線通信端末。
付記1乃至9のいずれかに記載の無線通信端末であって、
前記データ同期部は、エピデミックルーティングによりデータの同期をとる、
無線通信端末。
付記1乃至10のいずれかに記載の無線通信端末であって、
前記起動対象構成は、他の無線通信端末とデータの同期をとり、当該同期を確認する処理を実行する構成を含む、
無線通信端末。
付記1乃至11のいずれかに記載の無線通信端末であって、
当該無線通信端末は車両に搭載されており、
前記起動制御部は、前記車両の状態に関わらず作動する、
無線通信端末。
付記1乃至11のいずれかに記載の無線通信端末を搭載した車両。
近距離無線通信の範囲内で他の無線通信端末と相互に近距離無線通信を行う近距離無線通信部と、所定のデータを記憶するデータ記憶部と、を備えた無線通信端末に装備された制御装置に、
前記データ記憶部に記憶されたデータを他の無線通信端末と近距離無線通信により送受信することで、データの同期をとるデータ同期部と、
少なくとも前記データ同期部を含む起動対象構成を、他の無線通信端末に装備された前記起動対象構成の起動と同時期に起動してデータの同期をとるよう作動させる起動制御部と、
を実現させるためのプログラム。
付記14に記載のプログラムであって、
前記起動制御部は、予め設定された周期で前記起動対象構成を起動する、
プログラム。
付記14又は15に記載のプログラムであって、
前記起動制御部は、前記データ記憶部に記憶されたデータの変化に応じて、自端末に装備された前記起動対象構成を、他の無線通信端末に装備された前記起動対象構成の起動と同時期に起動する、
プログラム。
付記14乃至16のいずれかに記載のプログラムであって、
前記起動制御部は、前記データ同期部にて、近距離無線通信の範囲内の他の無線通信端末と前記データ同期部によるデータの同期が完了すると、前記起動対象構成を非起動状態とする、
プログラム。
近距離無線通信の範囲内で他の無線通信端末と相互に近距離無線通信を行う近距離無線通信部と、所定のデータを記憶するデータ記憶部と、を備えた無線通信端末が、
前記データ記憶部に記憶されたデータを他の無線通信端末と近距離無線通信により送受信することで、データの同期をとると共に、
少なくとも前記データ同期部を含む起動対象構成を、他の無線通信端末に装備された前記起動対象構成の起動と同時期に起動してデータの同期をとるよう作動させる、
情報処理方法。
付記18に記載の情報処理方法であって、
前記起動対象構成を、予め設定された周期で起動してデータの同期をとるよう作動させる、
情報処理方法。
付記18又は19に記載の情報処理方法であって、
前記データ記憶部に記憶されたデータの変化に応じて、自端末に装備された前記起動対象構成を、他の無線通信端末に装備された前記起動対象構成の起動と同時期に起動する、
情報処理方法。
付記18乃至20のいずれかに記載の情報処理方法であって、
自端末と近距離無線通信の範囲内の他の無線通信端末とのデータの同期が完了すると、前記起動対象構成を非起動状態とする、
情報処理方法。
C1-C6 車両
10 近距離無線通信部
11 データ生成部
12 データ記憶部
13 SVM送受信部
14 データ送受信部
15 同期完了検出部
16 電源制御部
17 時刻同期部
18 データ管理部
19 起動メッセージ送受信部
100 無線通信端末
101 近距離無線通信部
102 データ記憶部
103 データ同期部
104 起動制御部
Claims (21)
- 近距離無線通信の範囲内で他の無線通信端末と相互に近距離無線通信を行う近距離無線通信部と、
所定のデータを記憶するデータ記憶部と、
前記データ記憶部に記憶されたデータを他の無線通信端末と近距離無線通信により送受信することで、データの同期をとるデータ同期部と、
少なくとも前記データ同期部を含む起動対象構成を、他の無線通信端末に装備された前記起動対象構成の起動と同時期に起動してデータの同期をとるよう作動させる起動制御部と、を備えた、
無線通信端末。 - 請求項1に記載の無線通信端末であって、
前記起動制御部は、予め設定された周期で前記起動対象構成を起動する、
無線通信端末。 - 請求項2に記載の無線通信端末であって、
前記起動制御部は、他の無線通信端末と時刻の同期を行うと共に、当該同期された時刻に基づいて予め設定された周期で前記起動対象構成を起動する、
無線通信端末。 - 請求項1乃至3のいずれかに記載の無線通信端末であって、
前記起動制御部は、前記データ記憶部に記憶されたデータの変化に応じて、自端末に装備された前記起動対象構成を、他の無線通信端末に装備された前記起動対象構成の起動と同時期に起動する、
無線通信端末。 - 請求項4に記載の無線通信端末であって、
前記起動制御部は、前記データ記憶部に記憶されたデータに変化が生じると、自端末の前記起動対象構成を起動すると共に、前記無線通信部を介して他の無線通信端末の前記起動対象構成を起動する信号を発信する、
無線通信端末。 - 請求項1乃至5のいずれかに記載の無線通信端末であって、
前記起動制御部は、前記データ同期部にて、近距離無線通信の範囲内の他の無線通信端末と前記データ同期部によるデータの同期が完了すると、前記起動対象構成を非起動状態とする、
無線通信端末。 - 請求項6に記載の無線通信端末であって、
前記起動制御部は、前記データ同期部にて、近距離無線通信の範囲内の他の無線通信端末から当該他の無線通信端末が記憶しているデータのリストを受信してデータの同期を確認し、その後、近距離無線通信の範囲内の他の無線通信端末に対して自端末に記憶されているデータのリストを送信してから、前記起動対象構成を非起動状態とする、
無線通信端末。 - 請求項1乃至5のいずれかに記載の無線通信端末であって、
前記データ同期部は、前記起動制御部により起動されたときに、近距離無線通信の範囲内の他の無線通信端末と相互に近距離無線通信して、自端末の前記データ記憶部に記憶されているデータと他の無線通信端末の前記データ記憶部に記憶されているデータとを比較すると共に、当該データを送受信してデータの同期をとる、
無線通信端末。 - 請求項8に記載の無線通信端末であって、
前記データ同期部は、前記起動制御部により起動されたときに、近距離無線通信の範囲内の他の無線通信端末と相互に近距離無線通信して、自端末の前記データ記憶部に記憶されているデータのリストを他の無線通信端末に送信し、及び/または、他の無線通信端末から当該他の無線通信端末の前記データ記憶部に記憶されているデータのリストを受信して、前記リストに基づいてデータを送受信してデータの同期をとる、
無線通信端末。 - 請求項1乃至9のいずれかに記載の無線通信端末であって、
前記データ同期部は、エピデミックルーティングによりデータの同期をとる、
無線通信端末。 - 請求項1乃至10のいずれかに記載の無線通信端末であって、
前記起動対象構成は、他の無線通信端末とデータの同期をとり、当該同期を確認する処理を実行する構成を含む、
無線通信端末。 - 請求項1乃至11のいずれかに記載の無線通信端末であって、
当該無線通信端末は車両に搭載されており、
前記起動制御部は、前記車両の状態に関わらず作動する、
無線通信端末。 - 請求項1乃至11のいずれかに記載の無線通信端末を搭載した車両。
- 近距離無線通信の範囲内で他の無線通信端末と相互に近距離無線通信を行う近距離無線通信部と、所定のデータを記憶するデータ記憶部と、を備えた無線通信端末に装備された制御装置に、
前記データ記憶部に記憶されたデータを他の無線通信端末と近距離無線通信により送受信することで、データの同期をとるデータ同期部と、
少なくとも前記データ同期部を含む起動対象構成を、他の無線通信端末に装備された前記起動対象構成の起動と同時期に起動してデータの同期をとるよう作動させる起動制御部と、
を実現させるためのプログラム。 - 請求項14に記載のプログラムであって、
前記起動制御部は、予め設定された周期で前記起動対象構成を起動する、
プログラム。 - 請求項14又は15に記載のプログラムであって、
前記起動制御部は、前記データ記憶部に記憶されたデータの変化に応じて、自端末に装備された前記起動対象構成を、他の無線通信端末に装備された前記起動対象構成の起動と同時期に起動する、
プログラム。 - 請求項14乃至16のいずれかに記載のプログラムであって、
前記起動制御部は、前記データ同期部にて、近距離無線通信の範囲内の他の無線通信端末と前記データ同期部によるデータの同期が完了すると、前記起動対象構成を非起動状態とする、
プログラム。 - 近距離無線通信の範囲内で他の無線通信端末と相互に近距離無線通信を行う近距離無線通信部と、所定のデータを記憶するデータ記憶部と、を備えた無線通信端末が、
前記データ記憶部に記憶されたデータを他の無線通信端末と近距離無線通信により送受信することでデータの同期をとると共に、
少なくとも前記データ同期部を含む起動対象構成を、他の無線通信端末に装備された前記起動対象構成の起動と同時期に起動してデータの同期をとるよう作動させる、
情報処理方法。 - 請求項18に記載の情報処理方法であって、
前記起動対象構成を、予め設定された周期で起動してデータの同期をとるよう作動させる、
情報処理方法。 - 請求項18又は19に記載の情報処理方法であって、
前記データ記憶部に記憶されたデータの変化に応じて、自端末に装備された前記起動対象構成を、他の無線通信端末に装備された前記起動対象構成の起動と同時期に起動する、
情報処理方法。 - 請求項18乃至20のいずれかに記載の情報処理方法であって、
自端末と近距離無線通信の範囲内の他の無線通信端末とのデータの同期が完了すると、前記起動対象構成を非起動状態とする、
情報処理方法。
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