JP2015119455A - Communication terminal, communication control method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make communication operation with another communication terminal be more efficient to suppress power consumption by the communication operation.SOLUTION: A communication terminal comprises: wireless communication means for transmitting/receiving communication data with another communication terminal according to a communication protocol of repeating, at fixed intervals, a transmission mode for performing only transmission of communication data to the other communication terminal and a reception mode for performing only reception of communication data transmitted from the other communication terminal; and control means for performing change control of a frequency of the wireless communication means repeating communication operation between the transmission mode and the reception mode (step S3 to S8).

Description

  The present invention relates to a communication terminal, a communication control method, and a program.

  Some portable communication terminals such as smartphones and game machines equipped with a short-range wireless communication function such as Bluetooth (registered trademark) can exchange data with other communication terminals. Data can be exchanged even in a short time, and such data exchange is called passing communication (see, for example, Patent Documents 1 to 3).

On the other hand, a communication tool using the Internet called SNS (Social Networking Service) is also actively used.
According to the above-mentioned passing communication, it is possible to exchange user identification data such as an SNS account name, and it is possible to provide a new communication opportunity with an unspecified user who has passed by chance at an event venue or the like. is there.

JP 2011-209872 A JP 2012-151735 A JP 2013-17726 A

  Usually, the length of the interval at which the communication operation for passing communication is performed is constant. If the communication operation interval is short, data can be exchanged with a larger number of communication terminals. However, the frequency of communication operation increases, so that power consumption increases. On the other hand, if the interval is long, the power consumption is small, but the number of communication terminals that can exchange data decreases.

  Also, in an environment where there are many passing users such as event venues, the more frequent the communication operation of passing communication, the more opportunities to exchange data with other communication terminals, but in environments where there are few passing users such as homes. However, if the communication operation is continued at the same frequency, power is wasted.

  An object of the present invention is to improve the efficiency of communication operations with other communication terminals and suppress power consumption due to the communication operations.

According to the present invention, in order to solve the above problems,
According to a communication protocol that repeats a transmission mode for transmitting only communication data to another communication terminal and a reception mode for receiving only communication data transmitted from the other communication terminal at regular intervals, Wireless communication means for exchanging communication data with other communication terminals;
Control means for changing and controlling the frequency of repeating the communication operation in the transmission mode and the reception mode by the wireless communication means;
A communication terminal is provided.

  According to the present invention, it is possible to change and control the frequency of repeating the communication operation, and to improve the efficiency of the communication operation so that the frequency of the communication operation increases only when communication data exchange with other communication terminals is useful. it can. By increasing the efficiency of communication operations, useless communication operations can be reduced, and power consumption due to communication operations can be suppressed.

It is a figure which shows the communication terminal and management server which concern on this Embodiment. It is a functional block diagram showing the structure of a communication terminal. The time chart in the case of transmitting and receiving communication data without establishing a connection by the communication protocol of BLE (Bluetooth Low Energy) is shown. 2 shows a format of communication data in a BLE communication protocol. It is a flowchart which shows the process sequence at the time of the communication terminal of 1st Embodiment controlling the length of the space | interval of the communication operation | movement by a radio | wireless communication part. It is a flowchart which shows the process sequence at the time of the communication terminal of 2nd Embodiment controlling the start and completion | finish of a communication operation by a radio | wireless communication part. It is a flowchart which shows the process sequence at the time of the communication terminal of 3rd Embodiment controlling the start and completion | finish of communication operation by a radio | wireless communication part.

  Hereinafter, embodiments of a communication terminal, a communication control method, and a program according to the present invention will be described with reference to the drawings.

[First Embodiment]
FIG. 1 shows communication terminals A, B, and C of the present embodiment.
As shown in FIG. 1, each communication terminal A to C is connected to a management server 50 via a network N such as the Internet.
When the management server 50 acquires the current positions of the communication terminals A to C from the communication terminals A to C, and the current positions of the other communication terminals A to C are requested from any of the communication terminals A to C, The current location of the other communication terminals A to C is notified.

The communication terminals A to C are smartphones having a short-range wireless communication function, and can exchange communication data with other communication terminals A to C. The communication terminals A to C may be a game machine, a clock, a pedometer (registered trademark), a data recording device for running, or the like as long as it is a portable terminal having the same wireless communication function.
Since the basic components for communication data communication between the communication terminals A to C are the same, the configuration of the communication terminal A will be described below as an example.

FIG. 2 is a functional block diagram illustrating the configuration of the communication terminal A for each function.
As shown in FIG. 2, the communication terminal A includes a control unit 11, a storage unit 12, an operation unit 13, a display unit 14, a timing unit 15, a microphone 161, a speaker 162, a call processing unit 16, a communication unit 17, and a wireless communication unit. 18, a position detection unit 19, an acceleration sensor 20, and the like. Each part of the communication terminal A is connected by a bus 30.

The control unit 11 includes a CPU (Central Processing Unit), a RAM (Random Access Memory), and the like. The control unit 11 reads the program 121 stored in the storage unit 12 and executes the program 121 to control the operation of each unit of the communication terminal A.
For example, when a call is instructed via the operation unit 13, the control unit 11 (control unit, speed calculation unit) executes a call processing program, and the call processing unit 16 and the communication unit 17 perform a call destination program. The communication voice is exchanged with the communication terminal B or C.

  Further, the control unit 11 calculates the moving speed of the communication terminal A using the acceleration of the communication terminal A detected by the acceleration sensor 20. The control unit 11 controls the length of the communication operation interval in which the wireless communication unit 18 repeats the transmission mode and the reception mode according to the calculated moving speed.

The storage unit 12 stores a program 121 that can be read by the control unit 11, data necessary for executing the program 121, and the like.
As the storage unit 12, for example, a storage medium such as a hard disk, a ROM (Read Only Memory), an EEPROM (Electrically Erasable Programmable ROM), or a flash memory can be used.

  The operation unit 13 includes operation keys, a touch panel, and the like, generates an operation signal corresponding to these operations by the user, and outputs the operation signal to the control unit 11.

  The display unit 14 includes an LCD (Liquid Crystal Display), an organic EL (Electro luminescence) display, and the like, and displays a display screen such as an operation screen or a notification screen according to display control by the control unit 11.

  The timer unit 15 measures time based on the clock signal output from the oscillator, and outputs the current date and time.

The microphone 161 inputs a call voice.
The call processing unit 16 performs A / D conversion on the transmission voice input from the microphone 161, encodes it to generate a baseband signal of the call voice, and outputs it to the communication unit 17. In addition, the call processing unit 16 decodes the baseband signal of the call voice input from the communication unit 17, performs D / A conversion, and outputs the result to the speaker 162.
The speaker 162 outputs a call voice.

The communication unit 17 includes an antenna 171 for RF (Radio Frequency) communication, and performs transmission and reception of call voice, mail, and the like with the base station using the antenna 171.
Specifically, the communication unit 17 demodulates radio waves received via the antenna 171, and outputs the obtained call voice baseband signal, mail packet, and the like to the call processing unit 16 and the control unit 11, respectively. . Further, the communication unit 17 transmits the radio wave obtained by modulating the mail packet input from the control unit 11 or the baseband signal input from the call processing unit 16 to the base station via the antenna 171. .
Note that the communication unit 17 can also connect to a wireless LAN (Local Area Network) access point via WiFi (Wireless Fidelity), and perform transmission and reception via the network N.

The wireless communication unit 18 (wireless communication means) includes a Bluetooth antenna 181 and a Bluetooth module 182. The wireless communication unit 18 transmits and receives communication data to and from another communication terminal B or C via the antenna 181 by the Bluetooth module 182.
As long as short-range wireless communication can be performed, the communication standard of the wireless communication unit 18 is not limited to Bluetooth, and other communication standards such as Zigbee (registered trademark) may be used.

The Bluetooth module 182 uses a BLE (Bluetooth Low Energy) communication protocol for transmission and reception of communication data.
The communication protocol of BLE is constant in a transmission mode that only transmits communication data to other communication terminals B or C and a reception mode that only receives communication data transmitted from other communication terminals B or C. Repeat at every interval. The transmission mode is called Advertise, and the reception mode is called Scan.
The wireless communication unit 18 transmits communication data to another communication terminal B or C in the transmission mode and transmits from another communication terminal B or C in the reception mode according to the BLE communication protocol that repeats the transmission mode and the reception mode. Received communication data.

According to BLE, communication data can be exchanged without establishing a connection.
FIG. 3 shows a time chart when three communication terminals A, B and C exchange communication data without establishing a connection.
As shown in FIG. 3, each of the communication terminals A, B, and C repeats the transmission mode represented by Advertise and the reception mode represented by Scan, and sets a role as a Central and a role as a Peripheral. It is switched alternately.

As illustrated in FIG. 3, the wireless communication unit 18 switches between the transmission mode and the reception mode at a preset time. Specifically, the wireless communication unit 18 includes a counter, which counts time with the counter and switches from the transmission mode to the reception mode or vice versa when the switching time is reached.
The time in the transmission mode and the reception mode can be set for each communication terminal A, B, and C. Therefore, communication data can be exchanged when one communication terminal is in the transmission mode and the other communication terminal is in the reception mode. For example, the communication terminal B can receive the communication data transmitted from the communication terminal A while the transmission mode of the communication terminal A and the reception mode of the communication terminal B overlap.

FIG. 4 shows a format of communication data in BLE.
As shown in FIG. 4, the communication data is packet data including a header 31 and a payload 32. The Payload 32 that is actual data is composed of N AD Structures N34 with address33 at the head. address33 indicates the address of each AD Structure N34.
Each AD Structure N34 includes a Length 35, an AD Type 36, and an AD Data 37. Length 35 defines the data length of AD Structure N34. In AD Type 36, a flag indicating the type of data stored in AD Data 37 is stored. When a flag of 0xFF is stored in AD Type 36, specific data can be stored as AD Data 37.

  The specific data refers to any data that can be distributed to other communication terminals B or C without being limited to BLE. Examples of data that can be stored in the AD Data 37 as specific data include message data set by the user for distribution, user profile data, user ID issued in the service used by the user, and specific to the communication terminal A Examples include identification data such as a terminal ID.

  The position detector 19 includes a GPS (Global Positioning System) antenna 191, receives radio waves from a plurality of GPS satellites by the antenna 191, and calculates the distance from each of them, thereby determining the current position of the communication terminal A. To detect.

  The acceleration sensor 20 detects the acceleration of the communication terminal A.

The communication terminals A to C can change and control the frequency of repeating the communication operation by controlling the length of the interval in which the communication operation in the transmission mode and the reception mode is repeated according to the respective moving speeds.
Hereinafter, the processing procedure when the communication terminal A controls the length of the interval in which the wireless communication unit 18 repeats the communication operation in the transmission mode and the reception mode will be described with reference to FIG. Also, the length of the interval can be controlled by the same processing procedure as that of the communication terminal A.

  As shown in FIG. 5, in the communication terminal A, the control unit 11 calculates the moving speed of the communication terminal A (step S1). The method for calculating the moving speed is not particularly limited. For example, the control unit 11 can calculate the moving speed by acquiring the acceleration of the communication terminal A detected by the acceleration sensor 20 at regular intervals and integrating the obtained acceleration with time. Further, the control unit 11 can also calculate the moving speed by acquiring the current position detected by the position detection unit 19 at regular time intervals and dividing the displacement of the current position by the time.

Next, the control unit 11 determines the length of the interval T at which the communication operation in the transmission mode and the reception mode is repeated according to the calculated moving speed (step S2).
At this time, the control unit 11 can determine the interval T to be shorter as the moving speed is faster, and can determine the interval T to be longer as the moving speed is slower. For example, when the normal length of the interval T is T0, the control unit 11 is within the range of T0−Δt to T0 + Δt so that the faster the moving speed, the closer to T−Δt, and the slower the moving time. The length of the interval T is determined so as to be close to T + Δt.
As the moving speed increases, the possibility of approaching another communication terminal B or C increases. Therefore, by adjusting the length of the interval T to be shorter, opportunities for exchanging communication data can be increased. Conversely, the slower the moving speed, the lower the possibility of approaching another communication terminal B or C, or the possibility that the communication data has already been exchanged with another communication terminal B or C already approaching. In this case, by increasing the length of the interval T, it is possible to suppress the power consumption by refraining from the communication operation.

The control unit 11 sets the same time T as the determined interval T in the counter (step S3). Further, the control unit 11 causes the wireless communication unit 18 to start communication operations in the transmission mode and the reception mode (step S4).
The wireless communication unit 18 sets the transmission mode time T1 in the counter and starts the countdown from the time T1. Furthermore, the wireless communication unit 18 starts the transmission mode and transmits communication data to the other communication terminal B or C (step S5). When the count value of the counter becomes 0 and the time T1 elapses, the wireless communication unit 18 ends the transmission mode. The wireless communication unit 18 sets the reception mode time T2 in the counter and starts counting down from the time T2. Further, the wireless communication unit 18 starts the reception mode and waits for communication data transmitted from another communication terminal B or C (step S6). When the count value of the counter becomes 0 and the time T2 has elapsed, the wireless communication unit 18 ends the reception mode.

  When the reception mode ends, the control unit 11 operates a counter that sets the time T, and starts a countdown from the time T (step S7). When the count value of the counter becomes 0 and the time T has elapsed (step S8; Y), the process returns to the process of step S4, and the control unit 11 starts the communication operation of the transmission mode and the reception mode by the wireless communication unit 18.

As described above, the communication terminal A according to the first embodiment has the transmission mode in which only communication data is transmitted to the other communication terminal B or C, and the communication transmitted from the other communication terminal B or C. A wireless communication unit 18 that exchanges communication data with another communication terminal B or C according to a communication protocol that repeats data reception only at regular intervals, and a transmission mode and a reception mode by the wireless communication unit 18 And a control unit 11 for controlling the communication operation.
In the first embodiment, the control unit 11 calculates the moving speed of the communication terminal A, and the wireless communication unit 18 repeats the communication operation in the transmission mode and the receiving mode according to the calculated moving speed. Control the length.

  Thereby, the interval T is adjusted to be short in an environment where the possibility that communication data can be exchanged with another communication terminal B or C is increased depending on the moving speed of the communication terminal A, and the interval T is adjusted in an environment where the possibility is low. Can be adjusted longer. Only when communication data exchange is useful, the communication operation can be made more efficient so that the frequency of the communication operation is increased, and power consumption due to a wasteful communication operation can be suppressed.

In the first embodiment, the control unit 11 controls the length of the interval T to be shorter as the moving speed is faster, and to be longer as the moving speed is slower.
The faster the moving speed, the closer to the other communication terminal B or C, and the higher the possibility of exchanging communication data. Therefore, it is possible to adjust the length of the interval T and increase the opportunities for exchanging communication data. On the other hand, since the possibility becomes lower as the moving speed is slower, it is possible to adjust the length of the interval T to be longer and suppress power consumption due to useless communication operation.

The communication data includes specific data.
Message data, user profile data, identification data, etc. can be transmitted as specific data, and arbitrary data exchange is possible.

The communication protocol is Bluetooth Low Energy.
Thereby, power consumption can be suppressed.

[Second Embodiment]
The frequency with which the communication terminal according to the second embodiment repeats the communication operation by starting the communication operation in the transmission mode and the reception mode when the current position of the communication terminal is within the effective range for exchanging communication data. Change control.
The communication terminal of 2nd Embodiment is realizable by changing the process sequence of the communication terminal A of 1st Embodiment mentioned above as follows.
FIG. 6 shows a processing procedure when the communication terminal A controls the communication operation of the transmission mode and the reception mode by the wireless communication unit 18 in the second embodiment.

As shown in FIG. 6, in the communication terminal A, the control unit 11 sets an effective range for exchanging communication data (step S11). For example, the control unit 11 can acquire location information such as an event location from the management server 50, and can set a certain area including the event location as an effective range based on the location information. Moreover, the control part 11 can also set the range designated via the operation part 13 by the user as an effective range.
Next, the control part 11 acquires the present position of the communication terminal A detected by the position detection part 19 (position detection means) (step S12). The control unit 11 determines whether or not the acquired current position is within the set effective range (step S13).

  When the current position is not within the effective range (step S13; N), the control unit 11 determines whether or not the wireless communication unit 18 is already performing a communication operation that repeats the transmission mode and the reception mode (step S14). ). When the communication operation is being executed (step S14; Y), the control unit 11 sets a communication operation end flag (step S15), and the process proceeds to step S21. If the communication operation is not being executed (step S14; N), the process returns to step S12.

  On the other hand, when the current position is within the effective range (step S13; Y), the control unit 11 determines whether or not the wireless communication unit 18 is already executing communication operations in the transmission mode and the reception mode (step S13). S16). When the communication operation is being executed (step S16; Y), the process returns to step S12. When the communication operation is not being executed (step S16; N), the control unit 11 sets the length of the communication operation interval T to the normal length T0 and sets the time T0 in the counter (step S17). In addition, the control unit 11 causes the wireless communication unit 18 to start communication operations in the transmission mode and the reception mode (step S18).

  The wireless communication unit 18 sets the transmission mode time T1 in the counter and starts the countdown from the time T1. Further, the wireless communication unit 18 starts the transmission mode and transmits communication data to the other communication terminal B or C (step S19). When the count value of the counter becomes 0 and the time T1 elapses, the wireless communication unit 18 ends the transmission mode. The wireless communication unit 18 sets the reception mode time T2 in the counter and starts counting down from the time T2. Further, the wireless communication unit 18 starts the reception mode and waits for communication data transmitted from another communication terminal B or C (step S20). When the count value of the counter becomes 0 and the time T2 has elapsed, the wireless communication unit 18 ends the reception mode.

After the end of the reception mode, when the end flag is set (step S21; Y), the control unit 11 ends the communication operation by the wireless communication unit 18 (step S22).
When the end flag is not set (step S21; N), the control unit 11 operates the counter that sets the time T0 and starts the countdown from the time T0 (step S23). When the count value of the counter becomes 0 and the time T0 has elapsed (step S24; Y), the process returns to step S18, and the control unit 11 causes the wireless communication unit 18 to start communication operations in the transmission mode and the reception mode.

As described above, the communication terminal A according to the second embodiment has a transmission mode in which only communication data is transmitted to another communication terminal B or C, and a communication transmitted from the other communication terminal B or C. A wireless communication unit 18 that exchanges communication data with another communication terminal B or C according to a communication protocol that repeats data reception only at regular intervals, and a transmission mode and a reception mode by the wireless communication unit 18 And a control unit 11 for controlling the communication operation.
In the second embodiment, the communication terminal A includes a position detection unit 19 that detects the current position of the communication terminal A, and the control unit 11 determines that the current position detected by the position detection unit 19 is the communication terminal A. Is within the effective range for exchanging communication data with other communication terminals B or C, the communication operation in the transmission mode and the reception mode is started.

  Thereby, when it is located in the effective range and there is a high possibility that communication data can be exchanged with other communication terminals B or C, it is possible to start the communication operation and increase the opportunities for exchanging communication data. The communication operation can be made efficient so that the frequency of the communication operation is increased only when the communication data is useful, and the power consumption due to the useless communication operation can be suppressed.

In the second embodiment, the control unit 11 does not have the current position of the communication terminal A within the effective range, and the wireless communication unit 18 is executing communication operations in the transmission mode and the reception mode. If there is, the communication operation is terminated.
As a result, the communication operation can be terminated when the communication data with other communication terminals B or C is not likely to be exchanged, and the power consumption due to the wasteful communication operation is suppressed. be able to.

The communication data includes specific data.
Message data, user profile data, identification data, etc. can be transmitted as specific data, and arbitrary data exchange is possible.

The communication protocol is Bluetooth Low Energy.
Thereby, power consumption can be suppressed.

[Third Embodiment]
The communication terminal according to the third embodiment repeats the communication operation by starting the communication operation in the transmission mode and the reception mode when another communication terminal is located within a certain range from the current position of the communication terminal. Change and control the frequency.
The communication terminal of 3rd Embodiment is realizable by changing the process sequence of the communication terminal A of 1st Embodiment mentioned above as follows.
FIG. 7 shows a processing procedure when the communication terminal A controls the communication operation in the transmission mode and the reception mode by the wireless communication unit 18 in the third embodiment.

  As shown in FIG. 7, in the communication terminal A, the control unit 11 acquires the current position of the communication terminal A detected by the position detection unit 19 (position detection means) (step S31). The control unit 11 causes the communication unit 17 to transmit the acquired current position to the management server 50 and notifies the current position of the communication terminal A (step S32). Moreover, the control part 11 (position acquisition means) acquires the present position of the other communication terminal B or C from the management server 50 via the communication part 17 (step S33). At this time, the current position of the other communication terminal is not acquired without limitation, but is acquired on the condition that the current position is in the same area as the communication terminal A, and the control unit 11 acquires the current position. The communication terminal can be limited to some extent.

  Next, the control unit 11 determines whether or not the current position of another communication terminal B or C is within a certain range from the current position of the communication terminal A (step S34). The certain range may be a range in which wireless communication by the wireless communication unit 18 is possible, or may be a range designated by the user via the operation unit 13. Moreover, the same range as the effective range for exchanging communication data set in the second embodiment may be used.

  If the current position of the other communication terminal B or C is not within a certain range (step S34; N), the control unit 11 determines whether the wireless communication unit 18 is already performing communication operations in the transmission mode and the reception mode. It is determined whether or not (step S35). When the communication operation is being executed (step S35; Y), the control unit 11 sets a communication operation end flag (step S36), and the process proceeds to step S42. If the communication operation is not being executed (step S35; N), the process returns to step S31.

When another communication terminal B or C is located within a certain range (step S34; Y), the control unit 11 determines whether or not the wireless communication unit 18 is already executing communication operations in the transmission mode and the reception mode. Judgment is made (step S37). If the communication operation is being executed (step S37; Y), the process returns to step S31.
When the communication operation is not being executed (step S37; N), the control unit 11 sets the length of the communication operation interval T as the normal length T0 and sets the time T0 in the counter (step S38). In addition, the control unit 11 causes the wireless communication unit 18 to start communication operations in the transmission mode and the reception mode (step S39).

  The wireless communication unit 18 sets the transmission mode time T1 in the counter and starts the countdown from the time T1. Further, the wireless communication unit 18 starts the transmission mode and transmits communication data to the other communication terminal B or C (step S40). When the count value of the counter becomes 0 and the time T1 elapses, the wireless communication unit 18 ends the transmission mode. The wireless communication unit 18 sets the reception mode time T2 in the counter and starts counting down from the time T2. Further, the wireless communication unit 18 starts the reception mode and waits for communication data transmitted from another communication terminal B or C (step S41). When the count value of the counter becomes 0 and the time T2 has elapsed, the wireless communication unit 18 ends the reception mode.

After the end of the reception mode, when the end flag is set (step S42; Y), the control unit 11 ends the communication operation by the wireless communication unit 18 (step S43).
When the end flag is not set (step S42; N), the control unit 11 operates the counter that sets the time T0 and starts the countdown from the time T0 (step S44). When the count value of the counter becomes 0 and the time T0 elapses (step S45; Y), the process returns to the process of step S39, and the control unit 11 starts the communication operation of the transmission mode and the reception mode by the wireless communication unit 18.

As described above, the communication terminal A according to the third embodiment has a transmission mode in which only communication data is transmitted to another communication terminal B or C, and a communication transmitted from the other communication terminal B or C. A wireless communication unit 18 that exchanges communication data with another communication terminal B or C according to a communication protocol that repeats data reception only at regular intervals, and a transmission mode and a reception mode by the wireless communication unit 18 And a control unit 11 for controlling the communication operation.
In 3rd Embodiment, the communication terminal A is provided with the position detection part 19 which detects the present position of the communication terminal A, and the said control part 11 acquires the present position of the other communication terminal B or C. FIG. In addition, when the acquired current position of another communication terminal B or C is located within a certain range from the current position of the communication terminal A detected by the position detection unit 19, the control unit 11 performs transmission mode and reception mode. The communication operation that repeats is started.

  As a result, when there is a high possibility that communication data can be exchanged by approaching another communication terminal B or C, it is possible to start the communication operation and increase the opportunities for exchanging communication data. The communication operation can be made efficient so that the frequency of the communication operation is increased only when the communication data is useful, and the power consumption due to the useless communication operation can be suppressed.

Further, the control unit 11 performs a communication operation in which the current position of another communication terminal B or C is not located within a certain range from the current position of the communication terminal A, and the wireless communication unit 18 repeats the transmission mode and the reception mode. Is being executed, the communication operation is terminated.
As a result, when the distance to the other communication terminal B or C is long and the possibility that communication data can be exchanged is low, the communication operation can be terminated, and power consumption due to useless communication operation can be suppressed. .

The communication data includes specific data.
Message data, user profile data, identification data, etc. can be transmitted as specific data, and arbitrary data exchange is possible.

The communication protocol is Bluetooth Low Energy.
Thereby, power consumption can be suppressed.

The above embodiment is a preferred example of the present invention, and the present invention is not limited to this. Modifications can be made as appropriate without departing from the spirit of the present invention.
For example, the first embodiment is combined with the second or third embodiment, and the control unit 11 controls the start or end of the communication operation according to the current position of the communication terminal A. It is also possible to control the length of the communication operation interval T according to the moving speed of the terminal A.

Although the embodiments of the present invention have been described, the scope of the present invention is not limited to the above-described embodiments, and includes a scope equivalent to the scope of the invention described in the claims.
Below, the invention described in the scope of claims attached to the application of this application is added. The number of the claim described in the appendix is as in the scope of the claims originally attached to the application of this application.

[Appendix]
[Claim 1]
According to a communication protocol that repeats a transmission mode for transmitting only communication data to another communication terminal and a reception mode for receiving only communication data transmitted from the other communication terminal at regular intervals, Wireless communication means for exchanging communication data with other communication terminals;
Control means for changing and controlling the frequency of repeating the communication operation in the transmission mode and the reception mode by the wireless communication means;
A communication terminal comprising:
[Claim 2]
A speed calculating means for calculating a moving speed of the communication terminal;
The said control means controls the length of the space | interval in which the said wireless communication means repeats the communication operation of the said transmission mode and the said reception mode according to the said moving speed calculated by the said speed calculation means. Item 2. The communication terminal according to Item 1.
[Claim 3]
The communication terminal according to claim 2, wherein the control unit controls the length of the interval to be shorter as the moving speed is faster and to be longer as the moving speed is slower.
[Claim 4]
Comprising position detecting means for detecting a current position of the communication terminal;
The control means performs communication operations in the transmission mode and the reception mode when the current position detected by the position detection means is located within an effective range in which the communication terminal exchanges communication data with other communication terminals. The communication terminal according to claim 1, wherein the communication terminal is started.
[Claim 5]
The control means terminates the communication operation when the current position is not within the effective range and the wireless communication means is executing communication operations in the transmission mode and the reception mode. The communication terminal according to claim 4.
[Claim 6]
Position detecting means for detecting a current position of the communication terminal;
Position acquisition means for acquiring a current position of the other communication terminal,
When the current position of the other communication terminal acquired by the position acquisition means is located within a certain range from the current position of the communication terminal detected by the position detection means, the control means The communication terminal according to claim 1, wherein a communication operation for repeating the reception mode is started.
[Claim 7]
The control means is executing a communication operation in which the current position of the other communication terminal is not located within a certain range from the current position of the communication terminal, and the wireless communication means repeats the transmission mode and the reception mode. The communication terminal according to claim 6, wherein if there is, the communication operation is terminated.
[Claim 8]
The communication terminal according to any one of claims 1 to 7, wherein the communication data includes specific data.
[Claim 9]
The communication terminal according to any one of claims 1 to 8, wherein the communication protocol is Bluetooth Low Energy.
[Claim 10]
Wirelessly according to a communication protocol that repeats a transmission mode that only transmits communication data to another communication terminal and a reception mode that only receives communication data transmitted from the other communication terminal at regular intervals. Exchanging communication data with the other communication terminal by communication means;
Changing and controlling the frequency of repeating the communication operation in the transmission mode and the reception mode by the wireless communication means;
The communication control method characterized by including.
[Claim 11]
According to a communication protocol that repeats a transmission mode for transmitting only communication data to another communication terminal and a reception mode for receiving only communication data transmitted from the other communication terminal at regular intervals, A communication terminal computer having wireless communication means for exchanging communication data with other communication terminals,
A program for functioning as control means for changing and controlling the frequency of repeating the communication operation in the transmission mode and the reception mode by the wireless communication means.

A, B, C Communication terminal 11 Control unit 12 Storage unit 15 Timekeeping unit 17 Communication unit 18 Wireless communication unit 182 Bluetooth module 19 Position detection unit 20 Acceleration sensor 50 Management server

Claims (11)

According to a communication protocol that repeats a transmission mode for transmitting only communication data to another communication terminal and a reception mode for receiving only communication data transmitted from the other communication terminal at regular intervals, Wireless communication means for exchanging communication data with other communication terminals;
Control means for changing and controlling the frequency of repeating the communication operation in the transmission mode and the reception mode by the wireless communication means;
A communication terminal comprising: A speed calculating means for calculating a moving speed of the communication terminal;
The said control means controls the length of the space | interval in which the said wireless communication means repeats the communication operation of the said transmission mode and the said reception mode according to the said moving speed calculated by the said speed calculation means. Item 2. The communication terminal according to Item 1.   The communication terminal according to claim 2, wherein the control unit controls the length of the interval to be shorter as the moving speed is faster and to be longer as the moving speed is slower. Comprising position detecting means for detecting a current position of the communication terminal;
The control means performs communication operations in the transmission mode and the reception mode when the current position detected by the position detection means is located within an effective range in which the communication terminal exchanges communication data with other communication terminals. The communication terminal according to claim 1, wherein the communication terminal is started.   The control means terminates the communication operation when the current position is not within the effective range and the wireless communication means is executing communication operations in the transmission mode and the reception mode. The communication terminal according to claim 4. Position detecting means for detecting a current position of the communication terminal;
Position acquisition means for acquiring a current position of the other communication terminal,
When the current position of the other communication terminal acquired by the position acquisition means is located within a certain range from the current position of the communication terminal detected by the position detection means, the control means The communication terminal according to claim 1, wherein a communication operation for repeating the reception mode is started.   The control means is executing a communication operation in which the current position of the other communication terminal is not located within a certain range from the current position of the communication terminal, and the wireless communication means repeats the transmission mode and the reception mode. The communication terminal according to claim 6, wherein if there is, the communication operation is terminated.   The communication terminal according to any one of claims 1 to 7, wherein the communication data includes specific data.   The communication terminal according to any one of claims 1 to 8, wherein the communication protocol is Bluetooth Low Energy. Wirelessly according to a communication protocol that repeats a transmission mode that only transmits communication data to another communication terminal and a reception mode that only receives communication data transmitted from the other communication terminal at regular intervals. Exchanging communication data with the other communication terminal by communication means;
Changing and controlling the frequency of repeating the communication operation in the transmission mode and the reception mode by the wireless communication means;
The communication control method characterized by including. According to a communication protocol that repeats a transmission mode for transmitting only communication data to another communication terminal and a reception mode for receiving only communication data transmitted from the other communication terminal at regular intervals, A communication terminal computer having wireless communication means for exchanging communication data with other communication terminals,
A program for functioning as control means for changing and controlling the frequency of repeating the communication operation in the transmission mode and the reception mode by the wireless communication means.

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