WO2015025619A1 - 端末装置、プログラム及び情報処理装置 - Google Patents
端末装置、プログラム及び情報処理装置 Download PDFInfo
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- WO2015025619A1 WO2015025619A1 PCT/JP2014/067425 JP2014067425W WO2015025619A1 WO 2015025619 A1 WO2015025619 A1 WO 2015025619A1 JP 2014067425 W JP2014067425 W JP 2014067425W WO 2015025619 A1 WO2015025619 A1 WO 2015025619A1
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- terminal device
- wireless communication
- nfc
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- 238000004891 communication Methods 0.000 claims abstract description 204
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
- H04B5/48—Transceivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/24—Inductive coupling
- H04B5/26—Inductive coupling using coils
- H04B5/266—One coil at each side, e.g. with primary and secondary coils
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/72—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
-
- 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
- H04L67/50—Network services
- H04L67/52—Network services specially adapted for the location of the user terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/18—Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/28—Timers or timing mechanisms used in protocols
-
- 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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- 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
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/005—Discovery of network devices, e.g. terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
-
- 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 disclosure relates to a terminal device, a program, and an information processing device.
- NFC near field communication
- Patent Document 1 discloses a technique for preventing erroneous communication by connecting a master device and a slave device to each other using NFC when the slave device is determined to be within the NFC area of the master device. Has been.
- Patent Document 1 conventional techniques including the technique disclosed in Patent Document 1 may be less convenient for the user, for example.
- polling for NFC is transmitted and received between the two devices.
- a long time interval may be set as the polling time interval. For this reason, even if one of the two devices having the NFC function is brought closer to the other, it takes a long time to transmit and receive polling between the two devices, and as a result, it takes a long time to perform NFC. there is a possibility. Therefore, the user needs to keep the two devices close for a while. Thus, the convenience for the user can be lowered.
- the acquisition unit that acquires a result of determination as to whether another terminal device having a short-range wireless communication function is located in the vicinity of the terminal device, and the result of the determination
- a control unit that controls a polling time interval for the short-range wireless communication.
- the processor for controlling the terminal device acquires a determination result as to whether another terminal device having a short-range wireless communication function is located in the vicinity of the terminal device; A program for executing the polling time interval for the short-range wireless communication according to the determination result is provided.
- an information processing apparatus that controls a terminal device, the information processing apparatus including one or more processors and a memory that stores a program executed by the one or more processors.
- the program acquires a determination result of whether another terminal device having a short-range wireless communication function is located in the vicinity of the terminal device, and polls the short-range wireless communication according to the determination result. Is a program for executing the control of the time interval.
- the present disclosure it is possible to suppress the power consumption of the apparatus while improving the convenience for the user of the apparatus having the NFC function.
- the above effects are not necessarily limited, and any of the effects shown in the present specification or other effects that can be grasped from the present specification are exhibited together with or in place of the above effects. May be.
- FIG. 3 is a block diagram illustrating an example of a schematic configuration of a wireless communication module to which technology according to the present disclosure can be applied.
- FIG. 1 is a block diagram illustrating an example of a configuration of the terminal device 100 according to the present embodiment.
- the terminal device 100 includes a first antenna unit 110, a wireless LAN (Local Area Network) communication unit 120, a second antenna unit 130, an NFC unit 140, a storage unit 150, and a processing unit 160.
- a wireless LAN Local Area Network
- the first antenna unit 110 receives a wireless LAN communication signal and outputs the received signal to the wireless LAN communication unit 120. In addition, the first antenna unit 110 transmits a signal output from the wireless LAN communication unit 120.
- the wireless LAN communication unit 120 performs wireless LAN communication.
- the wireless LAN communication is, for example, either a wireless LAN standard or a Wi-Fi (Wireless Fidelity) standard (for example, IEEE 802.11, more specifically, IEEE 802.11a, 11b, 11g, 11n, 11ac, and 11ad). Is wireless communication.
- Wi-Fi Wireless Fidelity
- the wireless LAN communication unit 120 communicates with the wireless LAN access point when the communication mode of the terminal device 100 is the infrastructure mode. In addition, when the communication mode of the terminal device 100 is the direct communication mode (or ad hoc mode), the wireless LAN communication unit 120 directly communicates with another terminal device having a wireless LAN communication function.
- the wireless LAN communication unit 120 performs reception processing (for example, down-conversion, demodulation, and decoding) on the signal received by the first antenna unit 110 and provides information obtained by the reception processing to the processing unit 160. To do. Further, for example, the wireless LAN communication unit 120 performs transmission processing (for example, encoding, modulation, up-conversion, etc.) on the information provided by the processing unit 160, and the signal obtained by the transmission processing is transmitted to the first antenna unit. To 110.
- reception processing for example, down-conversion, demodulation, and decoding
- transmission processing for example, encoding, modulation, up-conversion, etc.
- the second antenna unit 130 receives the NFC signal and outputs the received signal to the unit 140 to the NFC. In addition, the second antenna unit 130 transmits a signal output from the NFC unit 140.
- the NFC unit 140 performs near field communication (NFC).
- the NFC is wireless communication according to any of NFC standards (ISO / IEC 14443 Type A, ISO / IEC 14443 Type B, ISO / IEC 15693, ISO / IEC 18092, ISO / IEC 21481, and the like).
- the NFC unit 140 communicates with another device having an NFC function.
- the NFC unit 140 communicates with another device located within about 10 cm from the terminal device 100.
- the NFC functions include a reader / writer for NFC (that is, an NFC reader / writer) or a tag for NFC (that is, an NFC tag).
- the NFC unit 140 performs, for example, a reception process (for example, down-conversion, demodulation, and decoding) on the signal received by the second antenna unit 130, and provides information obtained by the reception process to the processing unit 160. Further, for example, the NFC unit 140 performs transmission processing (for example, encoding, modulation, up-conversion, etc.) on the information provided by the processing unit 160, and sends a signal obtained by the transmission processing to the second antenna unit 120. Output.
- a reception process for example, down-conversion, demodulation, and decoding
- transmission processing for example, encoding, modulation, up-conversion, etc.
- the terminal device 100 can perform wireless LAN communication and NFC with the other terminal device.
- the terminal device 100 can perform wireless LAN communication and NFC with the other terminal device.
- FIG. 2 is an explanatory diagram for explaining an example of wireless LAN communication and NFC between terminal devices.
- the terminal device 100 and the terminal device 20 are shown.
- the terminal device 20 has a wireless LAN communication function, and performs wireless LAN communication via the antenna 21.
- the terminal device 20 has an NFC function and performs NFC via the antenna 23.
- the terminal device 100 can perform wireless LAN communication with the terminal device 20 via the first antenna unit 110 and perform NFC with the terminal device 20 via the second antenna unit 130.
- Wireless LAN communication is wireless communication having a communication distance longer than the NFC communication distance.
- Storage unit 150 The storage unit 150 temporarily or permanently stores a program and data for the operation of the terminal device 100.
- the processing unit 160 provides various functions of the terminal device 100.
- the processing unit 160 includes an information acquisition unit 161, a determination unit 163, a determination result acquisition unit 165, and a control unit 167.
- the information acquisition unit 161 acquires information necessary for processing by the processing unit 160.
- the information acquisition unit 161 is information provided by another terminal device through wireless LAN communication, and indicates the above information indicating the presence or absence of an NFC function (hereinafter referred to as "NFC function information"). ) To get.
- the information acquisition unit 161 acquires NFC function information via the wireless LAN communication unit 120.
- the NFC function information is information included in a beacon or probe response from another terminal device.
- the NFC function information is information of a supported configuration method (Configuration Method).
- Configuration Method a supported configuration method
- FIG. 3 is an explanatory diagram for explaining an example of the configuration method.
- a list of configuration methods is shown.
- the list is defined in a table 33 of Wi-Fi Simple Configuration Technical Specification (Wi-Fi Simple Configuration Technical Specification).
- Wi-Fi Simple Configuration Technical Specification Wi-Fi Simple Configuration Technical Specification
- “External NFC Token”, “Integrated NFC Token”, and “NFC Interface” in the above list indicate the presence or absence of the NFC function.
- Information on supported configuration methods among such configuration methods is notified by another terminal device.
- such configuration method information is notified to the terminal device 100 as 2-byte information in the probe response.
- NFC function information is acquired. As described above, by providing the NFC function information through wireless LAN communication, it is possible to know whether another terminal device located in the vicinity of the terminal device 100 has NFC. Further, by providing the NFC function information in the beacon or the probe response as described above, for example, it is possible to acquire the NFC function information without adding a new message. Furthermore, as described above, if the NFC function information is information of a supported configuration method, for example, it is possible to acquire the NFC function information from existing information.
- the determination unit 163 determines whether another terminal device having an NFC function is located in the vicinity of the terminal device 100.
- the determination is performed based on the NFC function information. That is, the determination unit 163 determines whether another terminal device having an NFC function is located in the vicinity of the terminal device 100 based on the NFC function information.
- the determination unit 163 generates a list of NFC-compatible devices from the NFC function information. Then, the determination unit 163 determines whether another terminal device having an NFC function is located in the vicinity of the terminal device 100 based on the list.
- the determination unit 163 determines whether another terminal device having an NFC function is located in the vicinity of the terminal device 100 based on the list.
- FIG. 4 is an explanatory diagram for explaining an example of a list of NFC-compatible devices.
- a table including NFC-compatible device addresses and timeout flags as attributes.
- the determination unit 163 determines whether the other terminal device has an NFC function. When the another terminal device has an NFC function, the determination unit 163 adds the address of the other terminal device to the list of NFC-compatible devices. On the other hand, when the other terminal device does not have the NFC function, the determination unit 163 does not add the address of the other terminal device to the list of NFC-compatible devices.
- another terminal device that is located in the vicinity of the terminal device 100 (that is, located in the vicinity of the terminal device 100 to the extent that wireless LAN communication with the terminal device 100 can be performed) and has an NFC function, It is registered in the list of NFC compatible devices.
- the determination unit 163 receives the other terminal device. The timeout flag corresponding to the address is changed from “0” to “1”.
- the NFC compatible device In the list the timeout flag of the other terminal device is “1”. If the addresses of one or more NFC-compatible devices are registered in the list of NFC-compatible devices and any one of the timeout flags is “0”, the determination unit 163 determines that another terminal device having an NFC function is a terminal. It is determined to be located in the vicinity of the device 100. On the other hand, if not, the determination unit 163 determines that another terminal device having the NFC function is not located in the vicinity of the terminal device 100. In the example shown in FIG.
- the addresses of the three terminal devices are registered in the list of NFC-compatible devices, but the timeout flag is already “1” for two of the three terminal devices, For one of the three terminal devices, the timeout flag remains “0”. Therefore, the determination unit 163 determines that another terminal device having an NFC function is located in the vicinity of the terminal device 100.
- the determination result acquisition unit 165 acquires a determination result as to whether another terminal device having an NFC function is located in the vicinity of the terminal device 100. For example, when the determination unit 163 performs the above determination, the determination result acquisition unit 165 acquires the determination result.
- the result of the determination is information indicating whether another terminal device having an NFC function is located in the vicinity of the terminal device 100.
- the determination result acquisition unit 165 includes a first case where another terminal device having an NFC function is located in the vicinity of the terminal device 100, and another terminal device having an NFC function is located in the vicinity of the terminal device 100. In both of the second cases, the determination result is acquired.
- the result of the determination may be information indicating that another terminal device having an NFC function is located in the vicinity of the terminal device 100.
- the determination result acquisition unit 165 does not need to acquire the determination result in the first case and acquire the determination result in the second case.
- the determination result may be information indicating that another terminal device having an NFC function is not located in the vicinity of the terminal device 100.
- the determination result acquisition unit 165 does not have to acquire the determination result in the second case and acquire the determination result in the first case.
- Control unit 167 The control unit 167 controls the polling time interval for NFC (hereinafter referred to as “polling interval”) according to the determination result.
- control unit 167 may make the polling interval shorter when another terminal device is located near the terminal device 100 than when another terminal device is not located near the terminal device 100. , Controlling the polling interval.
- the control unit 167 when the result of the determination is information indicating that another terminal device having an NFC function is located in the vicinity of the terminal device 100, the control unit 167 has a short polling interval. The polling interval is controlled so as to be the interval. On the other hand, when the result of the determination is information indicating that another terminal device having an NFC function is not located in the vicinity of the terminal device 100, the control unit 167 sets the polling interval to be a long interval. Control the polling interval.
- FIGS. 5 and 6 a specific example of this point will be described with reference to FIGS. 5 and 6.
- FIG. 5 is an explanatory diagram for explaining an example of a polling interval when another terminal device is not located in the vicinity of the terminal device 100.
- the polling interval T 1 is shown. For example, if another terminal device is determined not located in the vicinity of the terminal device 100, the control unit 167, the NFC unit 140, to transmit the polling polling interval T 1.
- FIG. 6 is an explanatory diagram for explaining an example of a polling interval when another terminal device is located in the vicinity of the terminal device 100.
- a short polling interval T 2 is shown than the polling interval T 1 shown in FIG.
- the polling interval is controlled according to the determination result.
- the polling interval is shortened. Therefore, when one of the terminal device 100 and another terminal device is brought close to the other, polling is transmitted and received between the terminal device 100 and another terminal device in a short time.
- NFC is performed as soon as the user brings the terminal device 100 close to another terminal device.
- the polling interval becomes long. Therefore, it is possible to reduce power consumption of the terminal device 100. That is, it is possible to suppress the power consumption of the terminal device 100 while improving the convenience for the user of the terminal device 100 having the NFC function.
- the control unit 167 controls the polling interval by outputting a command for setting the polling interval.
- the command includes polling interval information.
- the NFC unit 140 sets a polling interval based on the command. Then, the NFC unit 140 transmits polling at the set polling interval.
- the command is a command that causes a module having an NFC function to update a register that stores the polling interval.
- the NFC unit 140 includes a module (for example, a chip) having an NFC function.
- the NFC unit 140 updates the value of the register that stores the polling interval to the value of the polling interval indicated by the command. In this way, the polling interval is set. Then, the NFC unit 140 transmits polling at the set polling interval.
- FIG. 7 is a flowchart illustrating an example of a schematic flow of communication control processing of the terminal device 100 according to the present embodiment.
- the communication control process includes a first condition that the NFC function of the terminal device 100 is valid and a second condition that the screen of the terminal device 100 is on (or the state of the terminal device 100 is unlocked). Started when both the conditions are met.
- the determination unit 163 initializes a list of NFC-compatible devices (S301). That is, the determination unit 163 updates the list so that the information on any terminal device (for example, an address and a timeout flag) is not included in the list.
- the wireless LAN communication unit 120 receives a beacon and a probe response (S303).
- the probe response includes information on supported configuration methods.
- the determination unit 163 updates the list of NFC-compatible devices based on the supported configuration method information (S305).
- the determination unit 163 determines whether one or more NFC-compatible devices (that is, one or more other terminal devices having an NFC function) are located in the vicinity of the terminal device 100 based on the list of NFC-compatible devices. Is determined (S307). If one or more NFC-compatible devices are located in the vicinity of the terminal device 100 (S307: Yes), the determination unit 163 further determines whether there is an NFC-compatible device that has not timed out based on the list of NFC-compatible devices. Determination is made (S309).
- the determination unit 163 determines that the NFC compatible device (that is, another terminal device having an NFC function) is located in the vicinity of the terminal device 100, and performs control.
- the unit 167 causes the NFC unit 140 to set a short polling interval (S311). Then, the NFC unit 140 transmits polling at a short polling interval.
- the determination unit 163 determines whether a predetermined time has elapsed since the short polling interval was set (S319). If the predetermined time has elapsed (S319: Yes), the timeout flags for all NFC-compatible devices are set to “1” in the list of NFC-compatible devices (S321), and the process returns to step S303. On the other hand, if the predetermined time has not elapsed (S319: No), the process returns to step S315.
- control unit 167 includes the NFC unit. 140 sets a long polling interval (S313). Then, the process returns to step S303.
- the communication control processing of the terminal device 100 is performed.
- the predetermined time for the timeout flag is set by, for example, the user of the terminal device 100 or the vendor.
- the predetermined time is set to a short time, the power consumption is reduced.
- the polling interval immediately returns to a long interval, and therefore it may take a long time to perform NFC.
- convenience for the user can be reduced.
- the predetermined time is set to a long time, the power consumption increases. As a result, the battery duration can be shortened. For this reason, the predetermined time is desirably set to an appropriate time that is neither too short nor too long.
- FIG. 8 is a sequence diagram illustrating an example of a schematic flow of a communication control process between the terminal device 100 according to the present embodiment and another terminal device 20.
- the terminal device 100 transmits polling for NFC at a long polling interval (S401-1, S401-2).
- the terminal device 20 transmits a beacon for wireless LAN communication, and the terminal device 100 receives the beacon (S403).
- the beacon includes an ESS-ID (Extended Service Set Identifier).
- the terminal device 100 transmits a probe request including the ESS-ID included in the beacon, and the terminal device 20 receives the probe request (S405).
- the terminal device 20 transmits a probe response including NFC function information, and the terminal device 100 receives the probe response response (S407).
- the NFC function information is information on supported configuration methods.
- the NFC function information is information indicating that there is an NFC function, and as a result, the terminal device 100 sets a short polling interval. Then, the terminal device 100 transmits NFC polling at a short polling interval (S409-1, S409-2, S409-3).
- the terminal device 100 and the terminal device 20 are brought close to each other by the proximity operation by the user. Then, the terminal device 20 receives polling for NFC transmitted by the terminal device 100 (S409-4). Then, the terminal device 20 transmits a polling response, and the terminal device 100 receives the polling response (S411). Thereafter, the terminal device 100 and the terminal device 20 perform NFC with each other (S413).
- the terminal device 101 When another terminal device performs NFC with the terminal device 101, the terminal device 101 according to the modification of the present embodiment generates a magnetic flux in the direction of the position where the other terminal device is to be arranged. Accordingly, for example, the relationship between the position of the NFC antenna of the terminal device 101 and the position of the NFC antenna of another terminal device 20 can be set to a positional relationship suitable for NFC. As a result, it may be possible to reduce NFC errors.
- FIG. 9 is a block diagram illustrating an example of the configuration of the terminal device 101 according to a modification of the present embodiment.
- the terminal device 101 includes a first antenna unit 110, a wireless LAN communication unit 120, a second antenna unit 130, an NFC unit 140, a storage unit 150, a magnetic flux generation unit 170, and a processing unit 180.
- the processing unit 180 includes an information acquisition unit 161, a determination unit 163, a determination result acquisition unit 165, and a control unit 181.
- the wireless LAN communication unit 120 for the first antenna unit 110, the wireless LAN communication unit 120, the second antenna unit 130, the NFC unit 140, the storage unit 150, the information acquisition unit 161, the determination unit 163, and the determination result acquisition unit 165, refer to FIG.
- the terminal device 100 There is no difference between the terminal device 100 according to the present embodiment described above and the terminal device 101 according to a modified example of the present embodiment described with reference to FIG. Therefore, only the magnetic flux generator 170 and the controller 181 will be described here.
- the magnetic flux generator 170 generates a magnetic flux.
- the magnetic flux generation unit 170 includes an electromagnetic coil. Specifically, for example, when a current flows through the electromagnetic coil, a magnetic flux is generated.
- an example of a specific arrangement of the electromagnetic coils will be described with reference to FIG.
- FIG. 10 is an explanatory diagram for explaining an example of an electromagnetic coil provided in the terminal device 101.
- a terminal device 101 is shown.
- the back surface of the terminal device 101 is shown.
- the terminal device 101 includes a second antenna unit 130 for NFC and an electromagnetic coil 171.
- the second antenna unit 130 and the electromagnetic coil 171 are arranged near the back surface of the terminal device 101.
- the electromagnetic coil 171 is arranged in a region surrounded by the second antenna unit 130.
- the electromagnetic coil 171 generates a magnetic flux in the direction from the front to the back of the terminal device 101 or in the direction from the back to the front of the terminal device 101.
- the electromagnetic coil 171 does not serve as an interference source for the frequency (for example, 13.56 MHz) for NFC because of the direct current drive. Furthermore, for example, the current flowing through the electromagnetic coil 171 is sufficiently smaller than the current flowing through the coil for NFC. As a result, blocking of the NFC magnetic field is avoided.
- the current to the electromagnetic coil flows only during NFC. Thereby, the power consumption in an electromagnetic coil becomes small enough.
- Control unit 181 Control of Polling Interval
- the control unit 181 controls the polling interval based on the determination result of whether another terminal device having an NFC function is located in the vicinity of the terminal device 101. This point is as described above with reference to FIG.
- control unit 181 performs the magnetic flux in the direction in which the other terminal device should be arranged or the direction of the direction when the other terminal device performs NFC with the terminal device 101.
- the generation of the magnetic flux by the magnetic flux generator 170 is controlled so that the magnetic flux in the reverse direction is generated.
- control unit 181 controls the generation of magnetic flux by causing a current to flow from the battery to the electromagnetic coil 171.
- a current flows through the electromagnetic coil 171
- a magnetic flux is generated in a direction corresponding to the direction of the current.
- a current is passed through the electromagnetic coil 171 so that magnetic flux is generated in the direction in which the other terminal device should be arranged.
- the direction in which the other terminal device should be arranged is a direction from the front to the back of the terminal device 101. It is. Therefore, a current is passed through the electromagnetic coil 171 so that a magnetic flux in a direction from the front surface to the back surface of the terminal device 101 (that is, a magnetic flux traveling outward from the back surface of the terminal device 101) is generated.
- another terminal device includes an electromagnetic coil in the same manner as the terminal device 101.
- the electromagnetic coil is provided in this way.
- the center of the electromagnetic coil 171 of the terminal device 101 and the center of the electromagnetic coil of another terminal device are Electromagnetic force that pulls together is generated.
- an example of the arrangement of electromagnetic coils in another terminal device will be described.
- FIG. 11 is an explanatory diagram for explaining an example of an electromagnetic coil provided in another terminal device 20.
- the terminal device 20 is shown.
- the back surface of the terminal device 20 is shown.
- the terminal device 20 includes an antenna 23 for NFC and an electromagnetic coil 25.
- the antenna 23 and the electromagnetic coil 25 in the terminal device 20 are arranged similarly to the second antenna unit 130 and the electromagnetic coil 171 in the terminal device 101. Then, as described above, when magnetic flux is generated from the terminal device 101, an electromagnetic force that attracts the center of the electromagnetic coil 171 of the terminal device 101 and the center of the electromagnetic coil 25 of the terminal device 20 is generated.
- Electromagnetic force is generated as described above.
- the second antenna unit 130 of the terminal device 101 and the antenna 23 of the terminal device 20 are located in front of each other and in the vicinity of each other. That is, the relationship between the position of the NFC antenna of the terminal device 101 and the position of the NFC antenna of another terminal device 20 is a positional relationship suitable for NFC. As a result, it may be possible to reduce NFC errors.
- NFCIP1 ISO / IEC18092
- one of the terminal device 101 and the terminal device 20 is determined as an initiator terminal, and the other is determined as a target terminal. Then, when the terminal device 101 is determined as an initiator terminal and the terminal device 20 is determined as a target terminal, the terminal device 101 generates a magnetic flux from the front to the back of the terminal device 101 as described above, and the terminal device 20 Generates magnetic flux in the direction from the back to the front of the terminal device 20.
- the terminal device 20 that is the initiator terminal causes the magnetic flux in the direction from the front to the back of the terminal device 20 (that is, the terminal).
- the terminal device 101 that is the target terminal generates a magnetic flux in the direction from the back surface to the front surface of the terminal device 101 (that is, the magnetic flux that flows inward from the back surface of the terminal device 101).
- Another terminal device may include a metal plate instead of an electromagnetic coil.
- the metal plate may be provided in this way. Further, the metal plate may be disposed in a region surrounded by the NFC antenna, similarly to the electromagnetic coil.
- the terminal device 101 may generate a magnetic flux as described above when an NFC tag is detected (for example, when a probe response is received).
- the control unit 181 generates the magnetic flux generated by the magnetic flux generation unit 170 according to the size of the antenna of the terminal device 101 and another terminal device that performs NFC. The size may be changed. As a specific method, for example, the control unit 181 may change the magnitude of the magnetic flux by changing the magnitude of the current flowing through the electromagnetic coil 171.
- control unit 181 may change the magnitude of the magnetic flux.
- the antenna of another terminal device when the antenna of another terminal device is small, it is more difficult to make the relationship between the position of the antenna and the position of the NFC antenna of the terminal device 101 suitable for NFC.
- NFC errors can be reduced regardless of the size of the antenna.
- control unit 181 may acquire information on the size of the antenna from another terminal device via the wireless communication unit 120, or the size of the antenna from another terminal device via the NFC unit 140. You may acquire the information.
- the terminal device 100 and the terminal device 101 are fixed to a mobile terminal such as a smartphone, a tablet PC (Personal Computer), a notebook PC, a portable game terminal or a digital camera, a television receiver, a printer, a digital scanner, or a network storage. It may be realized as a terminal or an in-vehicle terminal such as a car navigation device.
- the terminal device 100 and the terminal device 101 are terminals (MTC (Machine Type Communication) terminals that perform M2M (Machine To Machine) communication, such as smart meters, vending machines, remote monitoring devices, or POS (Point Of Sale) terminals. May also be realized.
- the terminal device 100 and the terminal device 101 may be wireless communication modules (for example, integrated circuit modules configured by one die) mounted on these terminals.
- FIG. 12 is a block diagram illustrating an example of a schematic configuration of a smartphone 900 to which the technology according to the present disclosure can be applied.
- the smartphone 900 includes a processor 901, a memory 902, a storage 903, an external connection interface 904, a camera 906, a sensor 907, a microphone 908, an input device 909, a display device 910, a speaker 911, a wireless communication interface 912, an antenna switch 913, an antenna 914, An NFC interface 915, an antenna 916, a bus 917, a battery 918, and an auxiliary controller 919 are provided.
- the processor 901 may be, for example, a CPU (Central Processing Unit) or a SoC (System on Chip), and controls the functions of the application layer and other layers of the smartphone 900.
- the memory 902 includes a RAM (Random Access Memory) and a ROM (Read Only Memory), and stores programs and data executed by the processor 901.
- the storage 903 can include a storage medium such as a semiconductor memory or a hard disk.
- the external connection interface 904 is an interface for connecting an external device such as a memory card or a USB (Universal Serial Bus) device to the smartphone 900.
- the camera 906 includes, for example, an image sensor such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor), and generates a captured image.
- the sensor 907 may include a sensor group such as a positioning sensor, a gyro sensor, a geomagnetic sensor, and an acceleration sensor.
- the microphone 908 converts sound input to the smartphone 900 into an audio signal.
- the input device 909 includes, for example, a touch sensor that detects a touch on the screen of the display device 910, a keypad, a keyboard, a button, or a switch, and receives an operation or information input from a user.
- the display device 910 has a screen such as a liquid crystal display (LCD) or an organic light emitting diode (OLED) display, and displays an output image of the smartphone 900.
- the speaker 911 converts an audio signal output from the smartphone 900 into audio.
- the wireless communication interface 912 supports one or more of wireless LAN standards such as IEEE 802.11, more specifically, IEEE 802.11a, 11b, 11g, 11n, 11ac, and 11ad, and performs wireless LAN communication.
- the wireless communication interface 912 can communicate with other devices via a wireless LAN access point in the infrastructure mode.
- the wireless communication interface 912 can directly communicate with other devices in the direct communication mode (or ad hoc mode).
- the wireless communication interface 912 may typically include a baseband processor, an RF (Radio Frequency) circuit, a power amplifier, and the like.
- the wireless communication interface 912 may be a one-chip module in which a memory that stores a communication control program, a processor that executes the program, and related circuits are integrated.
- the wireless communication interface 912 may support other types of wireless communication methods such as a cellular communication method in addition to the wireless LAN method.
- the antenna switch 913 switches the connection destination of the antenna 914 among a plurality of circuits (for example, circuits for different wireless communication schemes) included in the wireless communication interface 912.
- the antenna 914 includes a single or a plurality of antenna elements (for example, a plurality of antenna elements constituting a MIMO antenna), and is used for transmission and reception of a radio signal by the radio communication interface 912.
- the NFC interface 915 supports one or more of the NFC standards such as ISO / IEC 14443 Type A, ISO / IEC 14443 Type B, ISO / IEC 15693, ISO / IEC 18092, and ISO / IEC 21481, and executes NFC. To do.
- the NFC interface 915 may typically include a baseband processor, an RF circuit, a power amplifier, and the like.
- the NFC interface 915 may be a one-chip module in which a memory that stores a communication control program, a processor that executes the program, and related circuits are integrated.
- the antenna 916 is used for transmission and reception of radio signals by the NF interface 915.
- the smartphone 900 is not limited to the example of FIG. 12, and may include a plurality of antennas (for example, an antenna for a cellular communication method). In that case, the antenna switch 913 may be omitted from the configuration of the smartphone 900.
- the smartphone 900 may include an electromagnetic coil.
- a bus 917 includes a processor 901, a memory 902, a storage 903, an external connection interface 904, a camera 906, a sensor 907, a microphone 908, an input device 909, a display device 910, a speaker 911, a wireless communication interface 912, an NFC interface 915, and an auxiliary controller 919.
- the battery 918 supplies power to each block of the smartphone 900 illustrated in FIG. 12 through a power supply line partially illustrated by a broken line in the drawing.
- the auxiliary controller 919 operates the minimum necessary functions of the smartphone 900 in the sleep mode.
- the information acquisition unit 161, the determination unit 163, the determination result acquisition unit 165, and the control units 167 and 181 described with reference to FIGS. 1 and 9 are implemented in the processor 901 or the auxiliary controller 919. May be. More specifically, for example, the information acquisition unit 161, the determination unit 163, the determination result acquisition unit 165, and the control units 167 and 181 are programs executed by the processor 901 or the auxiliary controller 919 (for example, OS (Operating System) or It may be implemented as part of a device driver. Further, at least a part of these functions may be implemented in the wireless communication interface 912 or the NFC interface 915. In the smartphone 900 illustrated in FIG. 12, the wireless LAN communication unit 120 and the NFC unit 140 described with reference to FIG. 1 may be implemented in the wireless communication interface 912 and the NFC interface 915, respectively.
- OS Operating System
- the smartphone 900 may operate as a wireless access point (software AP) when the processor 901 executes the access point function at the application level. Further, the wireless communication interface 912 may have a wireless access point function.
- FIG. 13 is a block diagram illustrating an example of a schematic configuration of a car navigation device 920 to which the technology according to the present disclosure can be applied.
- the car navigation device 920 includes a processor 921, a memory 922, a GPS (Global Positioning System) module 924, a sensor 925, a data interface 926, a content player 927, a storage medium interface 928, an input device 929, a display device 930, a speaker 931, and wireless communication.
- An interface 933, an antenna switch 934, an antenna 935, an NFC interface 936, an antenna 937, and a battery 938 are provided.
- the processor 921 may be a CPU or SoC, for example, and controls the navigation function and other functions of the car navigation device 920.
- the memory 922 includes RAM and ROM, and stores programs and data executed by the processor 921.
- the GPS module 924 measures the position (for example, latitude, longitude, and altitude) of the car navigation device 920 using GPS signals received from GPS satellites.
- the sensor 925 may include a sensor group such as a gyro sensor, a geomagnetic sensor, and an atmospheric pressure sensor.
- the data interface 926 is connected to the in-vehicle network 941 through a terminal (not shown), for example, and acquires data generated on the vehicle side such as vehicle speed data.
- the content player 927 reproduces content stored in a storage medium (for example, CD or DVD) inserted into the storage medium interface 928.
- the input device 929 includes, for example, a touch sensor, a button, or a switch that detects a touch on the screen of the display device 930, and receives an operation or information input from the user.
- the display device 930 has a screen such as an LCD or an OLED display, and displays a navigation function or an image of content to be reproduced.
- the speaker 931 outputs the navigation function or the audio of the content to be played back.
- the wireless communication interface 933 supports one or more of wireless LAN standards such as IEEE 802.11, more specifically, IEEE 802.11a, 11b, 11g, 11n, 11ac, and 11ad, and performs wireless LAN communication.
- the wireless communication interface 933 can communicate with other devices via a wireless LAN access point in the infrastructure mode.
- the wireless communication interface 933 can directly communicate with other devices in the direct communication mode (or ad hoc mode).
- the wireless communication interface 933 may typically include a baseband processor, an RF circuit, a power amplifier, and the like.
- the wireless communication interface 933 may be a one-chip module in which a memory that stores a communication control program, a processor that executes the program, and related circuits are integrated.
- the wireless communication interface 933 may support other types of wireless communication methods such as a cellular communication method in addition to the wireless LAN method.
- the antenna switch 934 switches the connection destination of the antenna 935 among a plurality of circuits included in the wireless communication interface 933.
- the antenna 935 includes a single antenna element or a plurality of antenna elements, and is used for transmission and reception of a radio signal by the radio communication interface 933.
- NFC interface 936 supports one or more of NFC standards such as ISO / IEC 14443 Type A, ISO / IEC 14443 Type B, ISO / IEC 15693, ISO / IEC 18092 and ISO / IEC 21481, and executes NFC To do.
- the NFC interface 936 may typically include a baseband processor, an RF circuit, a power amplifier, and the like.
- the NFC interface 936 may be a one-chip module in which a memory that stores a communication control program, a processor that executes the program, and related circuits are integrated.
- the antenna 937 is used for transmission and reception of radio signals by the NF interface 936.
- the car navigation device 920 is not limited to the example of FIG. 13 and may include a plurality of antennas. In that case, the antenna switch 934 may be omitted from the configuration of the car navigation device 920.
- the car navigation device 920 may include an electromagnetic coil.
- the battery 938 supplies power to each block of the car navigation apparatus 920 shown in FIG. 13 through a power supply line partially shown by broken lines in the drawing. Further, the battery 938 stores electric power supplied from the vehicle side.
- the information acquisition unit 161, the determination unit 163, the determination result acquisition unit 165, and the control units 167 and 181 described with reference to FIGS. 1 and 9 may be implemented in the processor 921.
- the information acquisition unit 161, the determination unit 163, the determination result acquisition unit 165, and the control units 167 and 181 are implemented as programs executed by the processor 921 (for example, a part of the OS or device driver). May be. Further, at least a part of these functions may be implemented in the wireless communication interface 933 or the NFC interface 936.
- the wireless LAN communication unit 120 and the NFC unit 140 described with reference to FIG. 1 may be implemented in the wireless communication interface 933 and the NFC interface 936, respectively.
- the technology according to the present disclosure may be realized as an in-vehicle system (or vehicle) 940 including one or more blocks of the car navigation device 920 described above, an in-vehicle network 941, and a vehicle side module 942.
- vehicle-side module 942 generates vehicle-side data such as vehicle speed, engine speed, or failure information, and outputs the generated data to the in-vehicle network 941.
- FIG. 14 is a block diagram illustrating an example of a schematic configuration of a wireless communication module 960 to which the technology according to the present disclosure can be applied.
- the wireless communication module 960 includes a processor 961, a memory 962, a storage 963, a connection interface 964, a wireless communication interface 965, an NFC interface 966, and a bus 967.
- the processor 961 may be a CPU, for example, and controls the function of the wireless communication module 960.
- the memory 962 includes a RAM and a ROM, and stores programs and data executed by the processor 961.
- the storage 963 can include a storage medium such as a semiconductor memory or a hard disk.
- the connection interface 964 is an interface for connection with a terminal on which the wireless communication module 960 is mounted.
- the wireless communication interface 965 supports one or more of wireless LAN standards such as IEEE 802.11, more specifically, IEEE 802.11a, 11b, 11g, 11n, 11ac, and 11ad, and performs wireless LAN communication.
- the wireless communication interface 965 can communicate with other devices via a wireless LAN access point in the infrastructure mode.
- the wireless communication interface 965 can directly communicate with other devices in the direct communication mode (or ad hoc mode).
- the wireless communication interface 965 may typically include a baseband processor, an RF circuit, a power amplifier, and the like.
- the wireless communication interface 965 may be a one-chip module in which a memory that stores a communication control program, a processor that executes the program, and related circuits are integrated.
- the wireless communication interface 965 may support other types of wireless communication methods such as a cellular communication method in addition to the wireless LAN method. Note that the wireless communication interface 965 transmits and receives wireless signals via an antenna.
- the antenna may be provided by a terminal on which the wireless communication module 960 is mounted.
- the NFC interface 966 supports one or more of NFC standards such as ISO / IEC 14443 Type A, ISO / IEC 14443 Type B, ISO / IEC 15693, ISO / IEC 18092, and ISO / IEC 21481, and executes NFC. To do.
- the NFC interface 966 may typically include a baseband processor, an RF circuit, a power amplifier, and the like.
- the NFC interface 966 may be a one-chip module in which a memory that stores a communication control program, a processor that executes the program, and related circuits are integrated. Note that the NFC interface 966 transmits and receives wireless signals via an antenna.
- the antenna may be provided by a terminal on which the wireless communication module 960 is mounted.
- the wireless communication module 960 is not limited to the example of FIG. 14 and may include one or more antennas (for example, a wireless LAN communication antenna, an NFC antenna, or the like).
- the wireless communication module 960 may include an electromagnetic coil.
- one or both of the wireless communication interface 965 and the NFC interface 966 may be provided by a terminal on which the wireless communication module 960 is mounted, instead of being provided by the wireless communication module 960.
- the bus 967 connects the processor 961, the memory 962, the storage 963, the external connection interface 964, the wireless communication interface 965, and the NFC interface 966 to each other.
- the information acquisition unit 161, the determination unit 163, the determination result acquisition unit 165, and the control units 167 and 181 described with reference to FIGS. 1 and 9 may be implemented in the processor 961.
- the information acquisition unit 161, the determination unit 163, the determination result acquisition unit 165, and the control units 167 and 181 are implemented as programs executed by the processor 961 (for example, part of the OS or device driver). May be.
- the processor 961 for example, part of the OS or device driver. May be.
- at least some of these functions may be implemented in the wireless communication interface 965 or the NFC interface 966.
- the wireless LAN communication unit 120 and the NFC unit 140 described with reference to FIG. 1 may be implemented in the wireless communication interface 965 and the NFC interface 966, respectively.
- the control unit 167 controls the polling time interval (that is, polling interval) for NFC according to the determination result of whether another terminal device having the NFC function is located in the vicinity of the terminal device 100. For example, the control unit 167 may make the polling interval shorter when another terminal device is located near the terminal device 100 than when another terminal device is not located near the terminal device 100. , Controlling the polling interval.
- polling time interval that is, polling interval
- the determination is performed based on the information provided by another terminal device through wireless LAN communication and indicating the presence or absence of the NFC function (that is, NFC function information).
- the NFC function information is information included in a beacon or a probe response from another terminal device.
- the NFC function information is information on supported configuration methods.
- the magnetic flux in the direction in which the other terminal device should be arranged or the magnetic flux in the opposite direction of the direction is generated.
- the generation of magnetic flux by the magnetic flux generator 170 is controlled so as to occur.
- the magnetic flux generator 170 includes an electromagnetic coil.
- the center of the electromagnetic coil of the terminal device 101 and the center of the electromagnetic coil of another terminal device are brought together. Electromagnetic force is generated.
- the second antenna unit 130 of the terminal device 101 and the antenna for NFC of another terminal device are located in front of each other and in the vicinity of each other. That is, the relationship between the position of the NFC antenna of the terminal device 101 and the position of the NFC antenna of another terminal device is a positional relationship suitable for NFC. As a result, it may be possible to reduce NFC errors.
- the magnitude of the magnetic flux generated by the magnetic flux generator 170 may be changed according to the magnitude of the antenna of another terminal apparatus that performs NFC with the terminal apparatus 101.
- the antenna of another terminal device when the antenna of another terminal device is small, it is more difficult to make the relationship between the position of the antenna and the position of the NFC antenna of the terminal device 101 suitable for NFC.
- NFC errors can be reduced regardless of the size of the antenna.
- NFC near field communication
- processing steps in the communication control processing of this specification do not necessarily have to be executed in time series in the order described in the flowchart.
- the processing steps in the communication control process may be executed in an order different from the order described in the flowchart, or may be executed in parallel.
- a computer program for causing hardware such as a CPU, ROM, and RAM incorporated in the terminal device to exhibit functions equivalent to those of each configuration of the terminal device.
- a storage medium storing the computer program may also be provided.
- An information processing apparatus for example, a processing circuit or a chip
- a memory for example, ROM and RAM
- a processor for example, CPU
- a terminal device An acquisition unit for acquiring a result of determination as to whether another terminal device having a short-range wireless communication function is located in the vicinity of the terminal device; A control unit that controls a polling time interval for the short-range wireless communication according to the result of the determination; A terminal device comprising: (2) The control unit, when another terminal device is located in the vicinity of the terminal device, the time interval is shorter than in the case where another terminal device is not located in the vicinity of the terminal device. The terminal device according to (1), wherein the time interval is controlled. (3) The terminal device according to (1) or (2), wherein the control unit controls the time interval by outputting a command for setting the time interval.
- the terminal device (4) The terminal device according to (3), wherein the command is a command that causes a module having the short-range wireless communication function to update a register that stores the time interval.
- the near field communication is near field communication (NFC).
- the near field communication is wireless communication according to any one of ISO / IEC 14443 Type A, ISO / IEC 14443 Type B, ISO / IEC 15693, ISO / IEC 18092, and ISO / IEC 21481.
- Terminal device (7) The terminal device according to any one of (1) to (6), further including a short-range wireless communication unit that performs the short-range wireless communication.
- the determination is information provided by another terminal device through wireless communication having a communication distance longer than the communication distance of the short-range wireless communication, and is based on the information indicating the presence or absence of the short-range wireless communication function
- the terminal device according to any one of (1) to (7).
- the terminal device according to (8), wherein the wireless communication is wireless local area network (LAN) communication.
- the terminal device according to claim 9, wherein the wireless local area network communication is wireless communication according to IEEE 802.11.
- the information indicating the presence / absence of the short-range wireless communication function is information included in a beacon or a probe response from another terminal device.
- the terminal device according to any one of (9) to (11), wherein the information indicating the presence or absence of the short-range wireless communication function is information of a supported configuration method. (13) The terminal device according to any one of (8) to (12), further including a determination unit that performs the determination. (14) The terminal device according to any one of (8) to (13), further including a wireless communication unit that performs the wireless communication. (15) The terminal device further includes a magnetic flux generator that generates magnetic flux, The control unit generates a magnetic flux in a direction in which the other terminal device should be arranged or a magnetic flux in a direction opposite to the direction when another terminal device performs the short-range wireless communication with the terminal device.
- the terminal device To control the generation of magnetic flux by the magnetic flux generator, The terminal device according to any one of (1) to (14). (16) The terminal unit according to (15), wherein the magnetic flux generation unit includes an electromagnetic coil. (17) The control unit changes the magnitude of the magnetic flux generated by the magnetic flux generation unit according to the size of an antenna of another terminal device that performs the short-range wireless communication with the terminal device. The terminal device according to any one of 16). (18) The function of the short-range wireless communication includes the reader / writer for the short-range wireless communication or the tag for the short-range wireless communication according to any one of (1) to (17). Terminal device.
- Terminal apparatus 100 101 Terminal apparatus 120 Wireless LAN (Local Area Network) communication part 140 NFC (Near Field Communication) part 163 Determination part 165 Determination result acquisition part 167,181 Control part 170 Magnetic flux generation part 171 Electromagnetic coil
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Abstract
Description
1.端末装置の構成
2.処理の流れ
3.変形例
4.応用例
5.まとめ
図1~図6を参照して、本実施形態に係る端末装置100の構成の一例を説明する。図1は、本実施形態に係る端末装置100の構成の一例を示すブロック図である。図1を参照すると、端末装置100は、第1アンテナ部110、無線LAN(Local Area Network)通信部120、第2アンテナ部130、NFC部140、記憶部150及び処理部160を備える。
第1アンテナ部110は、無線LAN通信の信号を受信し、受信される当該信号を無線LAN通信部120へ出力する。また、第1アンテナ部110は、無線LAN通信部120により出力される信号を送信する。
無線LAN通信部120は、無線LAN通信を行う。当該無線LAN通信は、例えば、無線LAN規格又はWi-Fi(Wireless Fidelity)規格(例えば、IEEE802.11、より具体的にはIEEE802.11a、11b、11g、11n、11ac及び11adなど)のいずれかに従った無線通信である。
第2アンテナ部130は、NFCの信号を受信し、受信される当該信号をNFCに部140へ出力する。また、第2アンテナ部130は、NFC部140により出力される信号を送信する。
NFC部140は、近接場通信(NFC)を行う。当該NFCは、例えば、NFC規格(ISO/IEC 14443 Type A、ISO/IEC 14443 Type B、ISO/IEC 15693、ISO/IEC 18092及びISO/IEC 21481など)のいずれかに従った無線通信である。
記憶部150は、記憶部150は、端末装置100の動作のためのプログラム及びデータを一時的にまたは恒久的に記憶する。
処理部160は、端末装置100の様々な機能を提供する。処理部160は、情報取得部161、判定部163、判定結果取得部165及び制御部167を含む。
情報取得部161は、処理部160による処理に必要な情報を取得する。
例えば、情報取得部161は、無線LAN通信を通じて別の端末装置により提供される情報であって、NFCの機能の有無を示す上記情報(以下、「NFC機能情報」と呼ぶ)を取得する。情報取得部161は、無線LAN通信部120を介して、NFC機能情報を取得する。
判定部163は、NFCの機能を有する別の端末装置が端末装置100の近傍に位置するかの判定を行う。
判定結果取得部165は、NFCの機能を有する別の端末装置が端末装置100の近傍に位置するかの判定の結果を取得する。例えば、判定部163が、上記判定を行うと、判定結果取得部165は、当該判定の結果を取得する。
制御部167は、上記判定の結果に応じて、NFCについてのポーリングの時間間隔(以下、「ポーリング間隔」と呼ぶ)を制御する。
次に、図7及び図8を参照して、本実施形態に係る通信制御処理の例を説明する。
図7は、本実施形態に係る端末装置100の通信制御処理の概略的な流れの一例を示すフローチャートである。当該通信制御処理は、端末装置100のNFC機能が有効であるという第1の条件と、端末装置100の画面がオンである(又は端末装置100の状態がアンロック状態である)という第2の条件との両方が満たされる場合に、開始される。
図8は、本実施形態に係る端末装置100及び別の端末装置20との間での通信制御処理の概略的な流れの一例を示すシーケンス図である。
次に、本実施形態の変形例を説明する。本実施形態の変形例に係る端末装置101は、別の端末装置が端末装置101とNFCを行う際に当該別の端末装置が配置されるべき位置の方向への磁束を発生させる。これにより、例えば、端末装置101のNFCのアンテナの位置と、別の端末装置20のNFCのアンテナの位置との関係を、NFCに適した位置関係にすることが可能になる。その結果、NFCのエラーを少なくすることが可能になり得る。
図9は、本実施形態の変形例に係る端末装置101の構成の一例を示すブロック図である。図9を参照すると、端末装置101は、第1アンテナ部110、無線LAN通信部120、第2アンテナ部130、NFC部140、記憶部150、磁束発生部170及び処理部180を備える。さらに、処理部180は、情報取得部161、判定部163、判定結果取得部165及び制御部181を含む。
磁束発生部170は、磁束を発生させる。例えば、磁束発生部170は、電磁コイルを含む。具体的には、例えば、当該電磁コイルに電流が流れることにより、磁束が発生する。以下、図10を参照して、電磁コイルの具体的な配置の例を説明する。
-ポーリング間隔の制御
制御部181は、NFCの機能を有する別の端末装置が端末装置101の近傍に位置するかの判定の結果に基づいて、ポーリング間隔を制御する。この点については、図1を参照して上述したとおりである。
とりわけ本実施形態の変形例では、制御部181は、別の端末装置が端末装置101とNFCを行う際に当該別の端末装置が配置されるべき方向への磁束又は当該方向の逆方向への磁束が発生するように、磁束発生部170による磁束の発生を制御する。
第1の例として、別の端末装置が、端末装置101と同様に電磁コイルを備える。例えば、別の端末装置が、NFCの機能としてNFCリーダライタを備える場合に、このように電磁コイルを備える。このような場合に、当該別の端末装置が端末装置101の近くに位置し、上述したように磁束が発生すると、端末装置101の電磁コイル171の中心と別の端末装置の電磁コイルの中心とを引き合わせる電磁力が発生する。以下、別の端末装置における電磁コイルの配置の例を説明する。
別の端末装置は、電磁コイルではなく、金属板を備えてもよい。例えば、別の端末装置が、NFCの機能としてNFCタグを備える場合に、このように金属板を備えてもよい。また、金属板は、電磁コイルと同様に、NFCのアンテナに囲われる領域に配置されてもよい。
制御部181は、端末装置101とNFCを行う別の端末装置のアンテナの大きさに応じて、磁束発生部170が発生させる磁束の大きさを変化させてもよい。具体的な手法として、例えば、制御部181は、電磁コイル171に流れる電流の大きさを変えることにより、磁束の大きさを変化させてもよい。
本開示に係る技術は、様々な製品へ応用可能である。例えば、端末装置100及び端末装置101は、スマートフォン、タブレットPC(Personal Computer)、ノートPC、携帯型ゲーム端末若しくはデジタルカメラなどのモバイル端末、テレビジョン受像機、プリンタ、デジタルスキャナ若しくはネットワークストレージなどの固定端末、又はカーナビゲーション装置などの車載端末として実現されてもよい。また、端末装置100及び端末装置101は、スマートメータ、自動販売機、遠隔監視装置又はPOS(Point Of Sale)端末などの、M2M(Machine To Machine)通信を行う端末(MTC(Machine Type Communication)端末ともいう)として実現されてもよい。さらに、端末装置100及び端末装置101は、これら端末に搭載される無線通信モジュール(例えば、1つのダイで構成される集積回路モジュール)であってもよい。
図12は、本開示に係る技術が適用され得るスマートフォン900の概略的な構成の一例を示すブロック図である。スマートフォン900は、プロセッサ901、メモリ902、ストレージ903、外部接続インタフェース904、カメラ906、センサ907、マイクロフォン908、入力デバイス909、表示デバイス910、スピーカ911、無線通信インタフェース912、アンテナスイッチ913、アンテナ914、NFCインタフェース915、アンテナ916、バス917、バッテリー918及び補助コントローラ919を備える。
図13は、本開示に係る技術が適用され得るカーナビゲーション装置920の概略的な構成の一例を示すブロック図である。カーナビゲーション装置920は、プロセッサ921、メモリ922、GPS(Global Positioning System)モジュール924、センサ925、データインタフェース926、コンテンツプレーヤ927、記憶媒体インタフェース928、入力デバイス929、表示デバイス930、スピーカ931、無線通信インタフェース933、アンテナスイッチ934、アンテナ935、NFCインタフェース936、アンテナ937及びバッテリー938を備える。
図14は、本開示に係る技術が適用され得る無線通信モジュール960の概略的な構成の一例を示すブロック図である。無線通信モジュール960は、プロセッサ961、メモリ962、ストレージ963、接続インタフェース964、無線通信インタフェース965、NFCインタフェース966及びバス967を備える。
ここまで、図1~図14を用いて、本開示の実施形態に係る端末装置及び通信制御処理を説明した。本開示に係る実施形態によれば、
制御部167は、NFCの機能を有する別の端末装置が端末装置100の近傍に位置するかの判定の結果に応じて、NFCについてのポーリングの時間間隔(即ち、ポーリング間隔)を制御する。例えば、制御部167は、別の端末装置が端末装置100の近傍に位置する場合には、別の端末装置が端末装置100の近傍に位置しない場合よりも、上記ポーリング間隔がより短くなるように、上記ポーリング間隔を制御する。
(1)
端末装置であって、
近距離無線通信の機能を有する別の端末装置が前記端末装置の近傍に位置するかの判定の結果を取得する取得部と、
前記判定の前記結果に応じて、前記近距離無線通信についてのポーリングの時間間隔を制御する制御部と、
を備える端末装置。
(2)
前記制御部は、別の端末装置が前記端末装置の近傍に位置する場合には、別の端末装置が前記端末装置の近傍に位置しない場合よりも、前記時間間隔がより短くなるように、前記時間間隔を制御する、前記(1)に記載の端末装置。
(3)
前記制御部は、前記時間間隔の設定のためのコマンドを出力することにより、前記時間間隔を制御する、前記(1)又は(2)に記載の端末装置。
(4)
前記コマンドは、前記近距離無線通信の機能を有するモジュールに、前記時間間隔を記憶するレジスタを更新させるコマンドである、前記(3)に記載の端末装置。
(5)
前記近距離無線通信は、近接場通信(NFC)である、前記(1)に記載の端末装置。
(6)
前記近接場通信は、ISO/IEC 14443 Type A、ISO/IEC 14443 Type B、ISO/IEC 15693、ISO/IEC 18092及びISO/IEC 21481のうちのいずれかに従った無線通信である、前記(5)に記載の端末装置。
(7)
前記近距離無線通信を行う近距離無線通信部をさらに備える、前記(1)~(6)のいずれか1項に記載の端末装置。
(8)
前記判定は、前記近距離無線通信の通信距離よりも長い通信距離を有する無線通信を通じて別の端末装置により提供される情報であって、前記近距離無線通信の機能の有無を示す前記情報に基づいて、行われる、前記(1)~(7)のいずれか1項に記載の端末装置。
(9)
前記無線通信は、無線ローカルエリアネットワーク(LAN)通信である、前記(8)に記載の端末装置。
(10)
前記無線ローカルエリアネットワーク通信は、IEEE802.11に従った無線通信である、請求項9に記載の端末装置。
(11)
前記近距離無線通信の機能の有無を示す前記情報は、別の端末装置からのビーコン又はプローブレスポンスの中に含まれる情報である、前記(9)に記載の端末装置。
(12)
前記近距離無線通信の機能の有無を示す前記情報は、サポートされているコンフィギュレーションメソッドの情報である、前記(9)~(11)のいずれか1項に記載の端末装置。
(13)
前記判定を行う判定部をさらに備える、前記(8)~(12)のいずれか1項に記載の端末装置。
(14)
前記無線通信を行う無線通信部をさらに備える、前記(8)~(13)のいずれか1項に記載の端末装置。
(15)
前記端末装置は、磁束を発生させる磁束発生部をさらに備え、
前記制御部は、別の端末装置が前記端末装置と前記近距離無線通信を行う際に当該別の端末装置が配置されるべき方向への磁束又は当該方向の逆方向への磁束が発生するように、前記磁束発生部による磁束の発生を制御する、
前記(1)~(14)のいずれか1項に記載の端末装置。
(16)
前記磁束発生部は、電磁コイルを含む、前記(15)に記載の端末装置。
(17)
前記制御部は、前記端末装置と前記近距離無線通信を行う別の端末装置のアンテナの大きさに応じて、前記磁束発生部が発生させる磁束の大きさを変化させる、前記(15)又は(16)のいずれか1項に記載の端末装置。
(18)
前記近距離無線通信の前記機能は、前記近距離無線通信のためのリーダライタ、又は前記近距離無線通信のためのタグを含む、前記(1)~(17)のいずれか1項に記載の端末装置。
(19)
端末装置を制御するためのプロセッサに、
近距離無線通信の機能を有する別の端末装置が前記端末装置の近傍に位置するかの判定結果を取得することと、
前記判定結果に応じて、前記近距離無線通信についてのポーリングの時間間隔を制御することと、
を実行させるためのプログラム。
(20)
端末装置を制御する情報処理装置であって、
1つ以上のプロセッサと、
前記1つ以上のプロセッサにより実行されるプログラムを記憶するメモリと、
を備え、
前記プログラムは、
近距離無線通信の機能を有する別の端末装置が前記端末装置の近傍に位置するかの判定結果を取得することと、
前記判定結果に応じて、前記近距離無線通信についてのポーリングの時間間隔を制御することと、
を実行させるためのプログラムである、
情報処理装置。
100、101 端末装置
120 無線LAN(Local Area Network)通信部
140 NFC(Near Field Communication)部
163 判定部
165 判定結果取得部
167、181 制御部
170 磁束発生部
171 電磁コイル
Claims (20)
- 端末装置であって、
近距離無線通信の機能を有する別の端末装置が前記端末装置の近傍に位置するかの判定の結果を取得する取得部と、
前記判定の前記結果に応じて、前記近距離無線通信についてのポーリングの時間間隔を制御する制御部と、
を備える端末装置。 - 前記制御部は、別の端末装置が前記端末装置の近傍に位置する場合には、別の端末装置が前記端末装置の近傍に位置しない場合よりも、前記時間間隔がより短くなるように、前記時間間隔を制御する、請求項1に記載の端末装置。
- 前記制御部は、前記時間間隔の設定のためのコマンドを出力することにより、前記時間間隔を制御する、請求項1に記載の端末装置。
- 前記コマンドは、前記近距離無線通信の機能を有するモジュールに、前記時間間隔を記憶するレジスタを更新させるコマンドである、請求項3に記載の端末装置。
- 前記近距離無線通信は、近接場通信(NFC)である、請求項1に記載の端末装置。
- 前記近接場通信は、ISO/IEC 14443 Type A、ISO/IEC 14443 Type B、ISO/IEC 15693、ISO/IEC 18092及びISO/IEC 21481のうちのいずれかに従った無線通信である、請求項5に記載の端末装置。
- 前記近距離無線通信を行う近距離無線通信部をさらに備える、請求項1に記載の端末装置。
- 前記判定は、前記近距離無線通信の通信距離よりも長い通信距離を有する無線通信を通じて別の端末装置により提供される情報であって、前記近距離無線通信の機能の有無を示す前記情報に基づいて、行われる、請求項1に記載の端末装置。
- 前記無線通信は、無線ローカルエリアネットワーク(LAN)通信である、請求項8に記載の端末装置。
- 前記無線ローカルエリアネットワーク通信は、IEEE802.11に従った無線通信である、請求項9に記載の端末装置。
- 前記近距離無線通信の機能の有無を示す前記情報は、別の端末装置からのビーコン又はプローブレスポンスの中に含まれる情報である、請求項9に記載の端末装置。
- 前記近距離無線通信の機能の有無を示す前記情報は、サポートされているコンフィギュレーションメソッドの情報である、請求項9に記載の端末装置。
- 前記判定を行う判定部をさらに備える、請求項8に記載の端末装置。
- 前記無線通信を行う無線通信部をさらに備える、請求項8に記載の端末装置。
- 前記端末装置は、磁束を発生させる磁束発生部をさらに備え、
前記制御部は、別の端末装置が前記端末装置と前記近距離無線通信を行う際に当該別の端末装置が配置されるべき方向への磁束又は当該方向の逆方向への磁束が発生するように、前記磁束発生部による磁束の発生を制御する、
請求項1に記載の端末装置。 - 前記磁束発生部は、電磁コイルを含む、請求項15に記載の端末装置。
- 前記制御部は、前記端末装置と前記近距離無線通信を行う別の端末装置のアンテナの大きさに応じて、前記磁束発生部が発生させる磁束の大きさを変化させる、請求項15に記載の端末装置。
- 前記近距離無線通信の前記機能は、前記近距離無線通信のためのリーダライタ、又は前記近距離無線通信のためのタグを含む、請求項1に記載の端末装置。
- 端末装置を制御するためのプロセッサに、
近距離無線通信の機能を有する別の端末装置が前記端末装置の近傍に位置するかの判定結果を取得することと、
前記判定結果に応じて、前記近距離無線通信についてのポーリングの時間間隔を制御することと、
を実行させるためのプログラム。 - 端末装置を制御する情報処理装置であって、
1つ以上のプロセッサと、
前記1つ以上のプロセッサにより実行されるプログラムを記憶するメモリと、
を備え、
前記プログラムは、
近距離無線通信の機能を有する別の端末装置が前記端末装置の近傍に位置するかの判定結果を取得することと、
前記判定結果に応じて、前記近距離無線通信についてのポーリングの時間間隔を制御することと、
を実行させるためのプログラムである、
情報処理装置。
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- 2014-06-30 JP JP2015532755A patent/JP6380395B2/ja not_active Expired - Fee Related
- 2014-06-30 WO PCT/JP2014/067425 patent/WO2015025619A1/ja active Application Filing
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US10310836B2 (en) | 2015-05-29 | 2019-06-04 | Nike, Inc. | Athletic activity data device firmware update |
JP2019007849A (ja) * | 2017-06-26 | 2019-01-17 | アイシン・エィ・ダブリュ株式会社 | ナビゲーションシステムおよびナビゲーションプログラム |
JP2019175255A (ja) * | 2018-03-29 | 2019-10-10 | 株式会社デンソーウェーブ | 無線タグリーダ |
JP7024554B2 (ja) | 2018-03-29 | 2022-02-24 | 株式会社デンソーウェーブ | 無線タグリーダ |
Also Published As
Publication number | Publication date |
---|---|
TWI651944B (zh) | 2019-02-21 |
JP6380395B2 (ja) | 2018-08-29 |
EP3038269B1 (en) | 2018-08-08 |
US10348598B2 (en) | 2019-07-09 |
EP3038269A1 (en) | 2016-06-29 |
JPWO2015025619A1 (ja) | 2017-03-02 |
EP3038269A4 (en) | 2017-04-05 |
ES2695225T3 (es) | 2019-01-02 |
TW201528716A (zh) | 2015-07-16 |
US20160165383A1 (en) | 2016-06-09 |
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