JP6398375B2 - COMMUNICATION DEVICE, COMMUNICATION METHOD, AND PROGRAM - Google Patents

Description

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

  In recent years, portable electronic devices have become smaller and more sophisticated, and smartphones and the like having many wireless communication functions such as 4G communication standards, Bluetooth (registered trademark), or wireless LAN (Local Area Network) have appeared. Yes. On the other hand, however, a large number of wireless communication functions are aggregated in the portable electronic device, so that each wireless device interferes with each other, resulting in a problem that noise is mixed in or reception sensitivity is lowered.

  For this reason, for example, Patent Document 1 introduces a technique for providing a high communication quality by separately providing a circuit (hardware) for determining the degree of radio interference and switching communication channels according to the degree of interference.

JP 2003-273799 A

  However, according to the technique introduced in Patent Document 1, a new circuit is added, which is not preferable from the viewpoint of cost and downsizing of the portable electronic device.

  The present invention has been made in view of such circumstances, and provides a communication device, a communication method, and a program that can avoid wireless interference without adding a circuit for determining the degree of wireless interference. For the purpose.

The communication device according to the present invention is
A communication device that performs wireless communication with a wireless device located at a short distance,
Determination means for determining whether each of the communication device and the wireless device is held in the same hand;
Wireless interference avoiding means for avoiding wireless interference with the wireless device,
The wireless interference avoiding means includes
When the determination unit determines that each of the communication device and the wireless device is held in the same hand, control is performed so as to avoid wireless interference with the wireless device.

  According to the present invention, it is possible to provide a communication device, a communication method, and a program capable of avoiding radio interference without adding a circuit for determining the degree of radio interference.

It is a block diagram which shows the structure of the radio | wireless system containing the communication apparatus which concerns on embodiment of this invention. It is a flowchart which shows the basic processing procedure of the communication apparatus which concerns on embodiment of this invention. It is a flowchart which shows the detailed process sequence of the handle determination process of FIG. It is the process conceptual diagram which showed the handle determination process with the acceleration and the angular velocity waveform. It is a flowchart which shows the detailed process sequence of the radio | wireless interference avoidance process of FIG. It is the process conceptual diagram which showed the radio interference avoidance process with the transmission power waveform.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a mode for carrying out the present invention (hereinafter simply referred to as the present embodiment) will be described in detail with reference to the accompanying drawings. Note that the same numbers or symbols are assigned to the same elements throughout the description of the embodiment.

(Configuration of the embodiment)
FIG. 1 is a block diagram illustrating a configuration of a wireless system 1 including a communication device according to the present embodiment.
A wireless system 1 illustrated in FIG. 1 includes a wireless device 12 such as a smartphone (hereinafter also simply referred to as device A) and a communication device 11 (hereinafter also simply referred to as device B) which is a wristwatch type mobile terminal.
Device B is a wearable device worn on the wrist. In addition to the clock function, for example, the device B can perform arithmetic processing such as the number of walking steps, walking distance, calorie calculation, and wireless communication of these data. Device A can be used as an auxiliary device by cooperating with short-range wireless communication such as Bluetooth (registered trademark).
Here, a case where the radio wave of device B interferes with the call of device A will be described as an example.

  The device A (wireless device 12) includes a control unit 120, a sensor unit 121, a short-range wireless communication unit 122, and a call wireless communication unit 123. The control unit 120 controls the sensor unit 121, the short-range wireless communication unit 122, and the call wireless communication unit 123 to communicate with the device B (communication device 11), as well as a phone call and Web (World Wide) that the smartphone has. Web) Realize communication functions such as browsing and e-mail.

  The sensor unit 121 is, for example, an acceleration sensor, a gyroscope, a geomagnetic sensor, or the like that detects the angular velocity, acceleration, inclination, or the like of the device A (wireless device 12). The near field communication unit 122 is a communication adapter that performs near field communication such as Bluetooth (registered trademark) with the device B. The wireless communication unit for call 123 captures a plurality of communication channels and communicates with an electric utility according to a communication protocol such as W-CDMA (Wideband Code Division Multiple Access), GSM (registered trademark) (Global System for Mobile Communications). Wireless communication is performed with a base station (not shown) connected to the network.

  Device B (communication device 11) includes a control unit 110, a sensor unit 111, and a short-range wireless communication unit 112. The sensor unit 111 is, for example, a gyro, an acceleration sensor (behavior acquisition unit), a geomagnetic sensor (tilt acquisition unit), or the like that detects the angular velocity, acceleration, inclination, or the like of the device B (communication device 11). The short-range wireless communication unit 112 is a communication adapter that performs short-range wireless communication with the device A (wireless device 12) using Bluetooth (registered trademark) or the like.

The control unit 110 of the device B (communication device 11) functions as a “short distance determination unit” that determines whether the device A (wireless device 12) is approaching a predetermined distance.
When the control unit 110 determines that the device B and the device A are in the same handle, the control unit 110 determines that the device A is approaching the device B.
The control unit 110 acquires the acceleration of the device A acquired by the sensor unit 121 of the device A through wireless communication, and acquires the acquired acceleration of the device A and the angular velocity and acceleration of the device B acquired by the sensor unit 111 of the device B. Based on the above, the possessor of the device A and the device B may be determined.
That is, by sharing the sensor data between the device A and the device B, it is determined whether or not the device A is approaching the device B.

In addition, when the angular velocity of the device B does not have a constant frequency component and the acceleration of the device A and the acceleration of the device B have the same phase frequency component, the control unit 110 You may determine with the same handle.
Further, when the control unit 110 determines that the device A and the device B are the same handle, the control unit 110 stores the tilt of the device B acquired by the sensor unit 111, and stores the tilt of the device B acquired by the sensor unit 111. If the past inclination of device B matches, device A and device B may be determined to have the same handle.

  When the angular velocity of device B acquired by sensor unit 111 has a constant frequency component, control unit 110 determines that device A and device B are different handles.

The control unit 110 acquires information on whether or not the device A (wireless device 12) having a communication function with another device different from the device B (communication device 11) is communicating with the other device, and communicates with the other device. If it is in the middle, it may be determined whether the device A and the device B are closer than a predetermined distance.
At this time, the control unit 110 functions as a “during-communication information acquisition unit” that acquires information on whether or not the device A having a communication function with another device different from the device B is communicating with the other device.

  When it is determined that the device A is closer than a predetermined distance, the control unit 110 also functions as a “radio interference avoiding unit” that performs control so as to avoid radio interference with the device A. Specifically, when data transmission (data communication) is performed from device B to device A, control unit 110 switches data transmission (data communication) of device B to intermittent transmission, and wirelessly transmits device A and device B. Control to avoid interference. At this time, the control unit 110 functions as “transmission drive switching means” that switches data transmission (data communication) of the device B to either continuous transmission or intermittent transmission.

  When the data capacity of data transmission (data communication) from device B to device A is less than a predetermined capacity, the control unit 110 may set the intermittent transmission interval to be longer. In addition, when the data capacity of data transmission (data communication) from device B to device A is larger than a predetermined capacity, the control unit 110 may perform control so as to reduce the data transmission output. At this time, the control unit 110 functions as a “transmission output control unit” that controls the data transmission output of the device B.

  When the data transmission output of device B is lowered and the communication speed becomes slower than a predetermined speed, the control unit 110 may return the data transmission output to the original data transmission output and set the interval of intermittent transmission longer. At this time, the control unit 110 functions as a “communication speed detection unit” that detects the communication speed between the device B and the device A.

(Operation of the embodiment)
Hereinafter, the operation of the communication apparatus 11 (device B) according to the present embodiment will be described in detail with reference to FIG.

First, the basic processing operation of the communication apparatus 11 (device B) according to the present embodiment will be described with reference to the flowchart of FIG.
The communication apparatus 11 (device B) according to the present embodiment is premised on sharing the communication state and sensor data between the devices A and B. For this reason, for example, the flow starts from the timing when the device A starts communication or the timing when the device A or device B starts linking to the other device (device B or device A).

Here, it is assumed that device B operates as a master device. First, the control unit 110 of the device B determines whether or not the short-range wireless communication link is established between the device B and the device A (step S11).
If it is determined that the short-range wireless communication link has been established (step S11 “YES”), the control unit 110 determines whether the device A is busy (step S12).
If it is determined that the short-range wireless communication link has not been established (step S11 “NO”), the process ends.

  The device A and the device B are in a state where they are likely to cause radio interference. That is, the device A and the device A are in a call state by estimating the distance between the devices based on the outputs of the sensor units 111 and 121 of the devices A and B. The determination can be made depending on whether or not there is.

  Specifically, if device A is in a call state (step S12 “YES”), device A is very likely to be located in either the left or right hand, while device B has its characteristics. Since it is assumed that the wristwatch is worn on the wrist, the device A and the device B are assumed to be in the same hand or in the opposite hand when the device A is in a call state.

When both devices A and B are held in the same hand, “the distance between the devices is very close and radio interference is likely to occur”, while when both devices A and B are held in different hands, “ It can be categorized into two cases: “Distance between devices is far away and radio interference is unlikely to occur”.
For this reason, the control part 110 performs the handle determination process mentioned later for details (step S13).

  Here, if the devices A and B are in the same handle (step S14 “YES”), for example, the control unit 110 reduces the transmission output of the device B or changes the transmission interval in order to avoid radio interference. A radio interference avoidance process whose details will be described later is executed (step S15).

On the other hand, when device A is not busy in step S12 (step S12 “NO”), or when it is determined in step S14 that devices A and B are not in the same possession (step S14 “NO”), control unit 110 Determines whether the transmission output of device B or the transmission interval is the initial value (default value) (step S16). If the initial value is not reached (step S16 “NO”), after returning to the initial value (step S17), the process branches to step S11.
If the initial value is reached (step S16 “YES”), the process branches directly to step S11.
The processes in steps S16 and S17 described above are measures for returning the transmission output or the transmission interval changed in the radio interference avoidance process to the state before the execution of the radio interference avoidance process.

By doing in this way, when the communication of the device A is completed before the device A and the device B are not in the communication link state, or the device A is replaced with the device A and the device B is held. If they are not the same, the device B can execute a communication link with the device A in an initial state.
Although not shown in FIG. 2, when the communication link state between the device A and the device B is released and the loop is ended, the transmission output and interval of the device B are returned to the initial state. To do.

  In the above description, the device B is the master device, and the control unit 110 of the device B instructs and executes each determination and each process. However, the device A is the master device and the device A The control unit 120 may instruct the device B to execute each determination and each process, and the control unit 110 of the device B may execute each determination and each process according to the instruction.

  Next, the handle determination process (step S13 in FIG. 2) and the wireless interference avoidance process (step S15 in FIG. 2) will be described in detail sequentially with reference to FIGS.

(Hand determination process)
FIG. 3 is a flowchart showing details of the handle determination process (step S13 in FIG. 2).
In FIG. 3, the control unit 110 determines whether the angular velocity has a constant frequency component based on the angular velocity output from the sensor unit 111 of the device B (step S131).

Here, FIG. 4A shows an angular velocity waveform measured by the sensor units 111 and 121.
As shown in FIG. 4A, when the angular velocity of the device B has a constant frequency component, it is considered that the device B is in a shake state.
Considering that the hand on the side holding the device A in a talking posture usually does not swing the arm when walking, the device B is opposite to the device A if the angular velocity of the device B has a constant frequency component. It is considered that the device B is attached to the wrist of the arm where the arm swing is performed while walking.
Therefore, when the angular velocity has a constant frequency component (step S131 “NO”), it is determined that both devices A and B are in different handles (step S132).

On the other hand, when the angular velocity does not have a constant frequency component (step S131 “YES”), if the device B is worn on the wrist, the device A and the device B are likely to have the same handle, Even if the device B is stored in a bag or the like, the device B may not have a certain frequency component. Therefore, it can be said that the device A and the device B are not necessarily in the same handle. Absent.
Therefore, the control unit 110 further determines whether the acceleration outputs of both devices A and B have the same phase frequency component based on the acceleration outputs of both devices A and B output by the sensor units 111 and 121 ( Step S133).

Here, FIG. 4B shows a waveform of acceleration measured by the sensor units 111 and 121.
As shown in FIG. 4B, when the device A and the device B have a constant frequency component and the phases thereof match, the sensor unit 121 of the device A and the sensor unit 111 of the device B Is considered to measure acceleration in a very close place.
That is, it is considered that the device A is in the hand, and the device B is attached to the wrist of the arm of the hand holding the device A.
Accordingly, when the accelerations of both devices A and B have frequency components having the same phase (“YES” in step S133), the control unit 110 determines that both devices A and B are in the same handle (step S135). .

Note that the posture data (tilt) of device B at the time of the previous call is stored in the storage unit of device B, and the current posture data (tilt) of sensor unit 111 of device B is stored. By further determining whether or not it matches the past posture data (tilt) stored in the section (step S134), the accuracy of the handle determination can be increased.
This attitude data (tilt) can be acquired from a geomagnetic sensor provided in the sensor unit 111.
In step S134, the storage unit stores both the posture data (tilt) of device A and the posture data (tilt) of device B when the same hand is held during a previous call. A determination is made as to whether the posture data (tilt) of the current device A and device B obtained from the sensor unit 121 of the device A and the sensor unit 111 of the device B match the past posture data (tilt). It is good.

Then, if the posture data (tilt) is close to the posture data (tilt) in the case of the same handle in the past (step S134 “YES”), it is determined that both devices A and B are in the same handle. (Step S135), in the case of a discrepancy determination different from the posture data (tilt) in the case of the same handle in the past (“NO” in Step S134), it is determined that the handle is different (Step S132).
After the handle determination process described above, the process returns to the basic process operation of FIG. 2 (RTN).

In the flowchart of FIG. 3, step S134 is performed after step S133, but this order may be reversed. The determination order may be determined in consideration of the accuracy (signal-to-noise ratio) of the sensor being used.
Further, when the accuracy of the handle determination is sufficiently obtained only by the determination of either step S133 or step S134, either one of the determinations may be omitted.

(Radio interference avoidance processing)
FIG. 5 is a flowchart showing details of the wireless interference avoidance process (step S15 in FIG. 2).
When it is determined in the above-described handle determination process that both devices A and B are the same handle, the control unit 110 executes a radio interference avoidance process in order to avoid radio interference with respect to a call.

  According to FIG. 5, the control unit 110 first determines whether data is being transmitted from the device B. When the device B is not performing data transmission (data communication) (step S151 “No”), the control unit 110 terminates the process because there is no possibility of radio interference between the device A and the device B. Return to the basic processing operation shown in FIG. 2 (RTN).

On the other hand, when it is determined that transmission is in progress (step S151 “YES”), control unit 110 switches data transmission (data communication) from device B from continuous transmission to intermittent transmission (step S152).
An example of the state switched to the intermittent transmission is shown in FIG. FIG. 6A is a graph in which the horizontal axis is a time axis, and the vertical axis is a scale of transmission power. In the figure, A indicates a continuous transmission section in a state of continuous transmission, and B indicates intermittent transmission. The intermittent transmission interval after switching is shown. As described above, even if the transmission power is the same as the transmission power at the time of continuous transmission, the average power can be lowered by intermittently transmitting data, and radio interference can be avoided.

  Returning to FIG. After switching data transmission (data communication) from device B to intermittent transmission, control unit 110 further determines whether device B is transmitting large-capacity data (step S153).

  Specifically, an appropriate threshold value is provided, and it is determined whether or not large-capacity data is being transmitted depending on whether or not the data capacity of the data transmitted by the device B exceeds the threshold value. When it is determined that it is not in progress (step S153 “NO”), the control unit 110 further sets the intermittent transmission intermittent interval (hereinafter, also simply referred to as an interval) longer (step S154), so that FIG. As shown in b), after the average power for data transmission (data communication) is further lowered to a state where radio interference can be further avoided, the processing returns to the basic processing operation shown in FIG. 2 (RTN).

  On the other hand, when it is determined that large-capacity data is being transmitted (step S153 “YES”), if intermittent transmission is performed, the time required until the data transmission (data communication) of device B is completed may be significantly increased. Since it is anticipated, the control part 110 performs control which reduces average power by reducing the transmission power itself of the device B, and avoids radio | wireless interference instead of the process (S154) which lengthens an interval (step S155).

However, in this case, the radio wave reach distance is reduced, and the reception sensitivity on the device A side is deteriorated. For example, the communication speed may be lowered due to an increase in BER (Bit Error Rate).
Therefore, the control unit 110 determines whether there is a decrease in the communication speed (step S156), and if there is a decrease in the communication speed (step S156 “NO”), returns the transmission output to the state before the decrease in step S155. Instead, by setting the interval of intermittent transmission longer (step S157), the average power is lowered to avoid radio interference, and the processing returns to the basic processing operation shown in FIG. 2 (RTN). On the other hand, if there is no decrease in the communication speed (step S156 “YES”), the process returns to the basic processing operation shown in FIG. 2 (RTN).

  Whether the communication speed is reduced is determined based on the BER (Bit Error Rate) itself as a determination criterion, when the BER (Bit Error Rate) is higher than a predetermined threshold. You may make it do.

As described above, when the amount of data is small and real-time performance is not required, the control unit 110 performs control to increase the communication interval and lower the average power output from the device B. On the other hand, when the amount of communication data is large or when real-time performance is required, first, the transmission output of device B is lowered. Here, if a decrease in communication speed (decrease in BER) occurs, the transmission output is returned to the base, the interval is set longer, and the process ends by lowering the average power.
Note that the radio interference avoidance process may be a process in which data transmission from the device B (data communication) is stopped and only the call state notification from the device A is communicated when YES is determined in step S151. In this case, since the transmission power of the device B becomes zero, radio interference can be reliably avoided.

(Effect of embodiment)
As described above, according to the communication device 11 (device B) according to the present embodiment, the control unit 110 determines that the wireless device 12 (device A) located at a short distance from the communication device 11 (device B) is a predetermined distance. If it is determined whether the wireless device is closer than a predetermined distance, control is performed so as to avoid wireless interference with the wireless device 12 (device A). It is possible to avoid radio interference without adding a circuit for determining the degree of. Since a wearable device (device B) such as a smartphone (device A) or a watch-type terminal is equipped with various sensors including an acceleration sensor as a standard, the processing described above is a new component. And can be realized in software without adding a circuit. Therefore, it is possible to avoid radio interference without adding a circuit for detecting radio interference, and no special circuit is added, so that the device B can be reduced in size and cost.

  As mentioned above, although this invention was demonstrated using embodiment, it cannot be overemphasized that the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiments. Further, it is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

  The invention described in the scope of claims attached to the application of this application will be added below. The item numbers of the claims described in the appendix are as set forth in the claims attached to the application of this application.

[Appendix]
<Claim 1>
A communication device that performs wireless communication with a wireless device located at a short distance,
Short distance determination means for determining whether or not the wireless device is approaching a predetermined distance;
Wireless interference avoiding means for avoiding wireless interference with the wireless device,
The wireless interference avoiding means includes
The communication apparatus, wherein when the short distance determination unit determines that the wireless device is closer than a predetermined distance, control is performed so as to avoid wireless interference with the wireless device.
<Claim 2>
The short distance determining means includes
A handle determination means for determining a handle of the communication device and the wireless device;
The said handle determination means determines that the said radio | wireless apparatus is approaching the said communication apparatus, when it determines with the said communication apparatus and the said radio | wireless apparatus being the same handle. Communication device.
<Claim 3>
The handle determination means includes
Acceleration acquisition means for acquiring acceleration of the wireless device;
Behavior acquisition means for acquiring the angular velocity and acceleration of the communication device,
Determining the handle of the wireless device and the communication device based on the acceleration of the wireless device acquired by the acceleration acquisition unit and the angular velocity and acceleration of the communication device acquired by the behavior acquisition unit. The communication device according to claim 2.
<Claim 4>
The handle determination means includes
The angular velocity of the communication device acquired by the behavior acquisition unit does not have a constant frequency component, and the acceleration of the wireless device acquired by the acceleration acquisition unit and the acceleration of the communication device acquired by the behavior acquisition unit The communication apparatus according to claim 3, wherein the wireless device and the communication apparatus are determined to have the same handle when frequency components having the same phase.
<Claim 5>
Inclination acquisition means for acquiring the inclination of the communication device;
An inclination storage means for storing the inclination of the communication device acquired by the inclination acquisition means when the handle determination means determines that the wireless device and the communication device are the same handle;
The handle determination means includes
When the inclination of the communication device acquired by the inclination acquisition unit matches the previous inclination of the communication device stored in the inclination storage unit, it is determined that the wireless device and the communication device are the same handle The communication device according to claim 3, wherein:
<Claim 6>
The handle determination means includes
The communication according to claim 3, wherein when the angular velocity of the communication device acquired by the behavior acquisition unit has a constant frequency component, it is determined that the wireless device and the communication device are different handles. apparatus.
<Claim 7>
A communication information acquisition means for acquiring information on whether the wireless device having a communication function with another device different from the communication device is communicating with the other device;
The short distance determining means includes
The information acquired by the in-communication information acquisition unit determines whether the wireless device and the communication device are closer than a predetermined distance when the wireless device is communicating with the other device. The communication device according to any one of claims 1 to 6.
<Claim 8>
The wireless interference avoiding means includes
Comprising transmission drive switching means for switching data communication of the communication device to either continuous transmission or intermittent transmission;
When transmitting data from the communication device to the wireless device, the transmission drive switching means switches the data transmission of the communication device to the intermittent transmission so as to avoid wireless interference between the wireless device and the communication device. The communication device according to claim 1, wherein the communication device is controlled as follows.
<Claim 9>
The wireless interference avoiding means includes
9. The communication apparatus according to claim 8, wherein when the data capacity of data transmission from the communication apparatus to the wireless device is smaller than a predetermined capacity, the intermittent transmission interval is set to be long.
<Claim 10>
The wireless interference avoiding means includes
A transmission output control means for controlling the data transmission output of the communication device;
9. The communication according to claim 8, wherein when the data capacity of data transmission from the communication device to the wireless device is larger than a predetermined capacity, the transmission output control means controls to lower the data transmission output. apparatus.
<Claim 11>
The wireless interference avoiding means includes
A communication speed detecting means for detecting a communication speed between the communication device and the wireless device;
When the transmission output control means lowers the data transmission output and the communication speed becomes lower than a predetermined speed, the data transmission output is returned to the original data transmission output and the interval of the intermittent transmission is set longer. The communication device according to claim 10, characterized in that:
<Claim 12>
A communication method of a communication device that performs wireless communication with a wireless device located at a short distance,
A first step of determining whether or not the wireless device located at a short distance from the communication device is approaching a predetermined distance;
And a second step of controlling to avoid wireless interference with the wireless device when it is determined that the wireless device is closer than a predetermined distance.
<Claim 13>
A communication device program for performing wireless communication with a wireless device located at a short distance,
A short distance determination function for determining whether or not the wireless device located at a short distance from the communication device is approaching a predetermined distance;
A communication apparatus program that realizes a wireless interference avoidance function that controls to avoid wireless interference with the wireless device when it is determined that the wireless device is closer than a predetermined distance .

1 Wireless System 11 Communication Device (Device B)
12 Wireless equipment (Device A)
DESCRIPTION OF SYMBOLS 110 Control part 111 Sensor part 112 Near field communication part 120 Control part 121 Sensor part 122 Near field communication part 123 Wireless communication part for telephone call

Claims (13)

A communication device that performs wireless communication with a wireless device located at a short distance,
Determination means for determining whether each of the communication device and the wireless device is held in the same hand ;
Wireless interference avoiding means for avoiding wireless interference with the wireless device,
The wireless interference avoiding means includes
The communication device, wherein when the determination unit determines that each of the communication device and the wireless device is held in the same hand , control is performed so as to avoid wireless interference with the wireless device. The determination means includes
Acceleration acquisition means for acquiring acceleration of the wireless device;
Behavior acquisition means for acquiring the angular velocity and acceleration of the communication device,
Whether the wireless device and the communication device are held in the same hand based on the acceleration of the wireless device acquired by the acceleration acquisition unit and the angular velocity and acceleration of the communication device acquired by the behavior acquisition unit The communication apparatus according to claim 1, wherein it is determined whether or not . The determination means includes
The angular velocity of the communication device acquired by the behavior acquisition unit does not have a constant frequency component, and the acceleration of the wireless device acquired by the acceleration acquisition unit and the acceleration of the communication device acquired by the behavior acquisition unit The communication apparatus according to claim 2, wherein the wireless apparatus and the communication apparatus are determined to be held in the same hand when the frequency components have the same phase frequency component. Inclination acquisition means for acquiring the inclination of the communication device;
An inclination storage means for storing the inclination of the communication apparatus acquired by the inclination acquisition means when the determination means determines that the wireless device and the communication apparatus are held in the same hand ;
The determination means includes
When the inclination of the communication device acquired by the inclination acquisition unit matches the previous inclination of the communication device stored in the inclination storage unit, the wireless device and the communication device are held in the same hand. the communication apparatus according to claim 2, wherein the determining that the. The determination means includes
3. When the angular velocity of the communication device acquired by the behavior acquisition unit has a constant frequency component, it is determined that the wireless device and the communication device are not held in the same hand. The communication apparatus as described in. A communication information acquisition means for acquiring information on whether the wireless device having a communication function with another device different from the communication device is communicating with the other device;
The determination means includes
When the wireless device is communicating with the other device, the information acquired by the communication information acquisition unit determines whether the communication device and the wireless device are held in the same hand. The communication apparatus according to any one of claims 1 to 5, wherein: The wireless interference avoiding means includes
Comprising transmission drive switching means for switching data communication of the communication device to either continuous transmission or intermittent transmission;
When transmitting data from the communication device to the wireless device, the transmission drive switching means switches the data transmission of the communication device to the intermittent transmission so as to avoid wireless interference between the wireless device and the communication device. The communication apparatus according to any one of claims 1 to 6, wherein the communication apparatus is controlled as follows. The wireless interference avoiding means includes
8. The communication apparatus according to claim 7, wherein when the data capacity of data transmission from the communication apparatus to the wireless device is smaller than a predetermined capacity, the intermittent transmission interval is set to be long. The wireless interference avoiding means includes
A transmission output control means for controlling the data transmission output of the communication device;
8. The communication according to claim 7, wherein when the data capacity of data transmission from the communication device to the wireless device is larger than a predetermined capacity, the transmission output control means controls to lower the data transmission output. apparatus. The wireless interference avoiding means includes
A communication speed detecting means for detecting a communication speed between the communication device and the wireless device;
When the transmission output control means lowers the data transmission output and the communication speed becomes lower than a predetermined speed, the data transmission output is returned to the original data transmission output and the interval of the intermittent transmission is set longer. The communication apparatus according to claim 9, characterized in that: The communication apparatus according to any one of claims 1 to 10, wherein the holding is wearing or holding in a hand. A communication method of a communication device that performs wireless communication with a wireless device located at a short distance,
A determination step of determining whether each of the communication device and the wireless device is held in the same hand ;
The determination step includes a radio interference avoidance step for performing control so as to avoid radio interference with the radio device when it is determined that each of the communication device and the radio device is held in the same hand. A communication method characterized by the above. A communication device program for performing wireless communication with a wireless device located at a short distance,
A determination function for determining whether each of the communication device and the wireless device is held in the same hand ; and
The determination function realizes a wireless interference avoidance function for controlling to avoid wireless interference with the wireless device when it is determined that the communication device and the wireless device are held in the same hand . A communication apparatus program characterized by the above.

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