WO2016017498A1 - Antenna device - Google Patents

Abstract

In the present invention, communications are performed with good communication quality with an antenna device provided with a drive unit for moving a specified location on the device. An antenna device (1) is provided with the following: an antenna (60); a drive unit (30) for moving a specified location on the device; a wireless circuit unit (10) for measuring the communication quality of the antenna (60); and a primary control unit (20) which causes the drive unit (30) to perform a preset operation for improving the communication quality of the antenna (60), when the communication quality of the antenna (60) measured by the wireless circuit unit (10) does not satisfy a first criteria.

Description

Antenna device

The present invention relates to an antenna device including a drive unit that moves a specific part of the device itself.

In recent years, an antenna device having a drive unit that performs wireless communication and moves a specific part of the device itself has been developed.

For example, Patent Document 1 discloses a communication robot including an antenna that receives a radio wave superimposed with RFID information from the RFID. The communication robot identifies a user from the received RFID information, and executes a communication action suitable for the user (for example, greeting, shaking hands, hugging, etc.).

Japanese Published Patent Publication “JP 2007-320033 A” (published on December 13, 2007)

However, since the communication robot described in Patent Document 1 executes communication behavior without considering the position of the antenna, for example, the antenna and a part such as the arm or hand of the communication robot are close to each other and wireless communication is interrupted. There is a problem of causing deterioration of communication quality.

The present invention has been made in view of the above problems, and a main object of the present invention is to provide a technique for performing communication with good communication quality in an antenna device including a drive unit that moves a specific part of the device itself. And

In order to solve the above problems, an antenna device according to an aspect of the present invention includes an antenna, a drive unit that moves a specific part of the device, a communication quality measurement unit that measures communication quality of the antenna, A control unit that causes the drive unit to perform a preset operation for improving the communication quality of the antenna when the communication quality of the antenna measured by the communication quality measurement unit does not satisfy the first standard. ing.

According to one aspect of the present invention, communication can be performed with good communication quality in an antenna device including a drive unit that moves a specific part of the device itself.

It is a block diagram showing a schematic structure of an antenna device concerning one embodiment of the present invention. It is a front view showing typically the appearance of the antenna device concerning one embodiment of the present invention. It is a flowchart explaining the flow of the process in one Embodiment of this invention. It is a figure which shows the example of operation | movement of the antenna apparatus which concerns on one Embodiment of this invention. It is a figure which shows the example of operation | movement of the antenna apparatus which concerns on the modification of one Embodiment of this invention. It is a figure which shows the example of operation | movement of the antenna apparatus which concerns on one Embodiment of this invention, or its modification. It is a figure which shows the example of operation | movement of the antenna apparatus which concerns on one Embodiment of this invention, or its modification. It is a figure which shows the example of operation | movement of the antenna apparatus which concerns on the modification of one Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. For convenience of explanation, members having the same functions as those shown in each embodiment are given the same reference numerals, and the description thereof is omitted as appropriate.

In the following embodiments, the antenna device according to the present invention is described as being configured as an autonomous robot. However, the antenna device according to the present invention is not limited to an autonomous robot, and the specific antenna The present invention can be applied to all antenna devices including a drive unit that physically moves a part (a part where an antenna is installed or a part where no antenna is installed). For example, a stationary wireless LAN master unit for home use It is also possible to configure as a type of communication device.

In the present specification, the “autonomous robot” refers to a machine that can autonomously perform at least a part of the operation (without a command from the outside), and the autonomous robot described in each embodiment includes: At least each part of the device can be driven autonomously.

In each embodiment, the antenna device according to the present invention is described as being configured as a humanoid autonomous robot. However, the shape of the autonomous robot is not particularly limited. It may be a mold or any other shape.

[Embodiment 1]
An embodiment (Embodiment 1) of the present invention will be described below with reference to FIGS. FIG. 1 is a block diagram illustrating a schematic configuration of an antenna device 1 according to the present embodiment. FIG. 2 is a front view schematically showing the appearance of the antenna device 1 according to the present embodiment.

As shown in FIG. 1, the antenna device 1 includes a radio circuit unit (communication quality measurement unit) 10, a main control unit (control unit) 20, a drive unit 30, a part 40, an antenna arrangement part 50, and an antenna 60. Yes.

The radio circuit unit 10 is connected to the antenna 60 and is a radio circuit unit that performs radio communication via the antenna 60. The radio circuit unit 10 may be configured by a combination of a plurality of circuit elements, or may be configured by RFIC (Radio Frequency Integrated Circuit). Further, the wireless circuit unit 10 may measure the communication quality of wireless communication (hereinafter simply referred to as “communication quality”) via the antenna 60 connected to the wireless circuit unit 10 using a known means. it can. Examples of communication quality that can be measured by the radio circuit unit 10 include TIS (Total Isotropic Sensitivity) / Tput (Throughput, throughput, effective transfer amount per unit time of communication line), BER (Bit Error Rate, Code Error Rate), BLER (Block Error Rate), FER (Frame Error Rate, Transmission Error Rate), RSRP (Reference Signal Signal Received Power), RxLev (Received Signal Level, Received Signal Level) ), RSCP (Received Signal Code Power), CQI (Channel Quality Indicator), RSSI (Received Signal Strength Indicator), and RI (Rank Indicator, Rank Indicator) However, it is not limited to these. Further, the number of types of communication quality measured by the radio circuit unit 10 may be at least one, and is not particularly limited. In the present embodiment, the radio circuit unit 10 measures one type of communication quality. Will be described.

The main control unit 20 controls the driving unit 30 with reference to the communication quality measured by the radio circuit unit 10 to operate the antenna device 1.

The part 40 includes the head, arms (forearms and upper arms), legs (thighs and lower legs), and trunk of the antenna device 1 as shown in FIG. Further, among the parts 40, the part 40 including the antenna 60 is referred to as an antenna arrangement part 50. In the antenna device 1 shown in FIG. 2, the right forearm is the antenna placement site 50. Note that these shapes and arrangements are merely examples.

The driving unit 30 drives the part 40 of the antenna device 1. The drive unit 30 can be configured by, for example, a servo motor, an actuator, a solenoid, or a combination thereof. Note that the operation mode of the drive unit 30 and the configuration of the drive unit 30 are not limited to these, and the drive unit 30 may be any configuration that can move any of the parts 40.

The antenna 60 has a rectangular shape as shown in FIG. 2, but the shape of the antenna is not limited to this. For example, the shape of the antenna 60 may be a planar shape different from a rectangle, a shape having a slit in the planar antenna, a linear antenna, or a plurality of planar antennas or linear antennas. A combination of Moreover, the pattern antenna on the board | substrate incorporated in the antenna arrangement | positioning site | part 50 may be sufficient, and the chip antenna mounted on the board | substrate may be sufficient. Further, the antenna 60 is not limited by the antenna system such as an inverted L antenna, an inverted F antenna, or a helical antenna. Furthermore, the antenna 60 may be formed by a substrate pattern, a flexible substrate pattern, a sheet metal, a copper foil, or plating by a technique such as LDS (Laser Directed） Structuring).

(Process flow)
FIG. 3 is a flowchart showing the flow of processing in this embodiment. Note that the processing in the embodiment described later also operates according to the flowchart shown in FIG.

First, the radio circuit unit 10 measures communication quality (S1). As an example of the timing at which the radio circuit unit 10 executes S1, (1) when the antenna device 1 starts communication, (2) when a predetermined time elapses after the antenna device 1 starts communication (predetermined Whenever time elapses, the radio circuit unit 10 may execute S1), and (3) when the antenna device 1 starts communication that requires immediacy (for example, telephone call, image data reception and playback, etc.) (4) When the battery level of the antenna device 1 is less than a predetermined value, (5) When transmission / reception of the large capacity data is started. Subsequently, the main control unit 20 determines whether or not the communication quality measured by the wireless circuit unit 10 satisfies the first standard. Note that when the communication quality measured by the radio circuit unit 10 does not satisfy the first standard, the communication quality of the antenna device 1 is not good. In the present embodiment, the communication quality measured by the radio circuit unit 10 indicates that the higher the value, the better the communication quality. Therefore, the communication quality measured by the radio circuit unit 10 exceeds a preset threshold 1. Is the first criterion (S2). When the communication quality measured by the radio circuit unit 10 indicates that the communication quality is better as the value is lower, the communication quality measured by the radio circuit unit 10 is less than a preset threshold value 1. The first standard may be used.

In addition, although there is no particular limitation on how S2 is executed when the radio circuit unit 10 is configured to measure a plurality of types of communication quality, in the present embodiment, the threshold 1 is set for each type of communication quality. The main control unit 20 determines that “the communication quality is lower than the threshold value 1” if any one of the plurality of types of communication quality values measured by the radio circuit unit 10 is lower than the threshold value 1. The same applies to S5 described later. In S2, when the main control unit 20 determines that the communication quality is greater than the threshold 1 (S2: NO), the communication quality is good and the process illustrated in FIG. Use the wireless communication.

On the other hand, when the main control unit 20 determines in S2 that the communication quality is equal to or less than the threshold value 1 (S2: YES), that is, when the first reference is not satisfied, the main control unit 20 controls the drive unit 30. Then, a preset operation for improving the communication quality is executed. The drive part 30 implement | achieves the said operation | movement by driving the site | part 40 (S3). Details of preset operations for improving communication quality will be described later. Note that the preset operation for improving the communication quality may be one type, but a plurality of operations for improving the communication quality are preset, and the main control unit 20 performs the plurality of operations. One or more operations may be selected from these operations, and the drive unit 30 may execute them. Further, for example, sequence data for causing the drive unit 30 to execute all procedures of each operation is stored in a storage unit (not shown), and the main control unit 20 refers to the sequence data in the storage unit. The drive unit 30 may be controlled.

Subsequently, in order to measure the communication quality after the drive unit 30 performs the operation for improving the communication quality, the radio circuit unit 10 measures the communication quality again (S4). Then, the main control unit 20 determines whether or not the communication quality measured by the radio circuit unit 10 satisfies the second standard. Similar to S2 described above, in this embodiment, the communication quality measured by the radio circuit unit 10 is preset in order to indicate that the communication quality measured by the radio circuit unit 10 is higher as the value is higher. Exceeding the threshold 2 is set as a second criterion (S5). Here, it is preferable that the second standard shows higher communication quality than the first standard so that the communication quality is reliably improved by the operation for improving the communication quality. That is, the threshold value 2 is preferably set to a value larger than the threshold value 1. However, the setting of threshold 1 and threshold 2 is not particularly limited, and the same value may be set for threshold 1 and threshold 2. Further, the thresholds 1 and 2 may be configured to be freely changeable. For example, the main control unit 20 may refer to the remaining battery level of the antenna device 1 and set the threshold value 1 and the threshold value 2 high when the remaining battery level is low. Thereby, the antenna device 1 can perform communication with good communication quality, and can suppress transmission power. In addition, when the communication performed by the antenna device 1 is communication that requires immediacy (for example, telephone call, image data reception and reproduction, etc.), the main control unit 20 may set the thresholds 1 and 2 high. As a result, the antenna device 1 can satisfactorily perform communication that requires immediateness.

In S5, when the main control unit 20 determines that the communication quality is greater than the threshold 2 (S5: YES), the communication quality is good and the process illustrated in FIG. Wireless communication using On the other hand, when the main control unit 20 determines that the communication quality is equal to or less than the threshold 2 in S5 (S5: NO), that is, when the second standard is not satisfied, the main control unit 20 causes the antenna device 1 to perform the current operation. In order to execute an operation different from the above, the process returns to S3. That is, in the operation (first operation) for improving the communication quality performed first, if the communication quality of the antenna cannot be sufficiently improved, the main control unit 20 performs the first operation in S3. The drive unit performs an operation (second operation) for improving communication quality, which is different from the operation (first operation) for improving communication quality. Thereby, the communication quality of an antenna can be improved successfully.

(Example of operation to improve communication quality)
FIG. 4 is a diagram illustrating an example of an operation for improving communication quality in the present embodiment. In the operation example shown in FIG. 4, when it is determined that the communication quality is equal to or lower than the threshold value 1 in S2 described above, that is, when the first criterion is not satisfied, or in S5 described above, the communication quality is equal to or lower than the threshold value 2. This is an example in which the drive unit 30 operates in S3 when it is determined, that is, when the second criterion is not satisfied. The same applies to other embodiments or modifications.

In the present embodiment, the drive unit 30 operates to move the antenna 60 away from the part adjacent to the antenna 60 in the antenna apparatus 1 or the part adjacent to the antenna 60 in the antenna apparatus 1 as an operation for improving communication quality. Is moved away from the antenna 60. Hereinafter, each operation will be described in detail with reference to FIG.

In the antenna device 1 shown in FIG. 4A, the right arm, which is the antenna placement portion 50, extends downward, and the antenna 60 and the trunk are adjacent to each other. At this time, when the body close to the antenna 60 is made of metal, or the metal is built in the body, the antenna 60 is close to the metal, so that the antenna characteristics are deteriorated. In addition, when no metal is used for the body, for example, even when the body is made of resin, the frequency of the antenna 60 shifts due to the proximity of the resin to the antenna 60, so that the antenna characteristics are deteriorated. Therefore, as shown in FIG. 4B, the main control unit 20 controls the drive unit 30 so that the right arm extends horizontally in the right direction, and increases the distance between the antenna 60 and the trunk. Alternatively, as shown in FIG. 4C, the main control unit 20 controls the driving unit 30 so that the right arm extends upward, and increases the distance between the antenna 60 and the trunk.

Further, in the antenna device 1 shown in FIG. 4D, the right arm that is the part 40 extends downward, and the antenna 60 and the right arm that are arranged on the right flank of the trunk that is the antenna arrangement part 50 are adjacent to each other. Yes. Therefore, as shown in FIG. 4E, the main control unit 20 controls the driving unit 30 so that the right arm extends horizontally in the right direction, and increases the distance between the antenna 60 and the right arm. Alternatively, as shown in FIG. 4F, the main control unit 20 controls the drive unit 30 so that the right arm extends upward to increase the distance between the antenna 60 and the right arm.

Also, in the antenna device 1 shown in FIG. 4G, the right forearm that is the part 40 extends to the upper left shoulder or the back, and the antenna 60 that is placed on the back side of the left shoulder of the trunk that is the antenna placement part 50 The right forearm is adjacent. Therefore, as shown in FIG. 4H, the main control unit 20 controls the driving unit 30 so that the right arm (the right forearm and the upper right arm) extends downward, and increases the distance between the antenna 60 and the right arm. .

Further, in the antenna device 1 shown in FIG. 4I, the right arm that is the part 40 extends in front of the face, and the antenna 60 and the right arm that are arranged on the upper part of the head that is the antenna arrangement part 50 are adjacent to each other. ing. Therefore, as shown in FIG. 4J, the main control unit 20 controls the drive unit 30 so that the right arm extends downward, and increases the distance between the antenna 60 and the right arm.

As described above, according to the operation for improving the communication quality in the present embodiment, the interval between the antenna 60 and the part adjacent to the antenna 60 in the antenna device 1 can be increased. Thereby, deterioration of the communication quality of the antenna 60 by the part adjacent to the antenna 60 can be prevented, and the communication quality can be improved successfully.

(Modification)
In the antenna device 1 according to the modified example of the present embodiment, as an operation for improving communication quality, a noise source 70 (for example, an RF substrate, a servo motor that configures the drive unit 30, and the like) that is a configuration included in the antenna device 1 is provided. ) And the antenna 60, the main controller 20 moves the antenna 60 away from the noise source 70 included in the antenna device 1, or moves the noise source 70 included in the antenna device 1 away from the antenna 60. You may make the drive part 30 perform operation | movement. Hereinafter, a modification of the first embodiment will be described with reference to FIG. FIG. 5 is a diagram illustrating an example of the operation of the antenna device 1 according to the modification of the present embodiment.

In the antenna device 1 shown in FIG. 5A, the noise source 70 is disposed in the abdomen, the right arm that is the antenna placement portion 50 extends downward, and the antenna 60 and the noise source 70 are close to each other. . Therefore, as shown in FIG. 5B, the main control unit 20 controls the drive unit 30 so that the right arm extends horizontally in the right direction, and increases the interval between the antenna 60 and the noise source 70. Alternatively, as shown in FIG. 5C, the main control unit 20 controls the drive unit 30 so that the right arm extends obliquely upward to the right, and increases the interval between the antenna 60 and the noise source 70.

Further, in the antenna device 1 shown in FIG. 5D, the right arm, which is the part 40 where the noise source 70 is arranged, extends downward, and the antenna 60 is arranged on the right flank of the trunk, which is the antenna arrangement part 50. And the noise source 70 are close to each other. Therefore, as shown in FIG. 5E, the main control unit 20 controls the drive unit 30 so that the right arm extends horizontally in the right direction, and increases the interval between the antenna 60 and the noise source 70. Alternatively, the main control unit 20 controls the driving unit 30 so that the right arm extends obliquely upward to the right, as shown in FIG. 5F, and increases the distance between the antenna 60 and the noise source 70.

Further, in the antenna device 1 shown in FIG. 5G, the right forearm, which is the part 40 where the noise source 70 is arranged, extends to the left shoulder, and is arranged on the back side of the left shoulder of the trunk, which is the antenna arrangement part 50. The antenna 60 and the noise source 70 are close to each other. Therefore, as shown in FIG. 5H, the main control unit 20 controls the drive unit 30 so that the right arm (the right forearm and the upper right arm) extends downward, and the interval between the antenna 60 and the noise source 70 is increased. Enlarge.

Further, in the antenna device 1 shown in FIG. 5 (i), the noise source 70 is arranged on the back side of the left shoulder of the torso, the head that is the antenna arrangement part 50 faces forward, and the antenna 60 is on the back of the head. Since they are arranged, the antenna 60 and the noise source 70 are close to each other. Therefore, as shown in FIG. 5J, the main control unit 20 controls the drive unit 30 so that the head rotates 45 ° in the left direction, and increases the interval between the antenna 60 and the noise source 70. Alternatively, the main control unit 20 controls the drive unit 30 so that the head rotates 90 degrees leftward as shown in FIG. 5 (k), and increases the distance between the antenna 60 and the noise source 70.

As described above, according to the operation for improving the communication quality in the present modification, the interval between the antenna 60 and the noise source 70 included in the antenna device 1 can be increased. Thereby, deterioration of the communication quality of the antenna 60 due to the influence of the noise source 70 can be prevented, and the communication quality can be improved successfully.

[Embodiment 2]
In the first embodiment, the antenna device 1 includes one antenna 60, but the number of antennas 60 included in the antenna device 1 according to the present invention is not particularly limited. In this embodiment (Embodiment 2), a case where the antenna device 1 includes a plurality of antennas 60 will be described. Hereinafter, the present embodiment will be described with reference to (a) to (g) of FIG. 6A to 6G are diagrams illustrating an example of the operation of the antenna device 1 according to the present embodiment. The communication quality measured in S1 and S5 is the communication quality when communication is performed using two antennas together, such as TIS, BER, BLER, FER, Tput, etc. when diversity reception is performed using two antennas. The communication quality may be the communication quality such as TIS, BER, BLER, FER, Tput, etc. when MIMO is received using two antennas, or the TIS or BER of the worse of the two antennas. , BLER, FER, Tput, etc. may be used.

As an operation for improving the communication quality in the present embodiment, the main control unit 20 causes the drive unit 30 to perform an operation of increasing the distance between the plurality of antennas 60. For example, in the antenna device 1 shown in FIG. 6A, the right arm, which is the antenna arrangement part 50a where the antenna 60a is arranged, extends downward, and the left arm, which is the antenna arrangement part 50b where the antenna 60b is arranged, is also lower. Is growing. Therefore, as shown in FIG. 6B, the main control unit 20 controls the drive unit 30 so that the right arm extends horizontally in the right direction and the left arm extends horizontally in the left direction, and the antenna 60a and the antenna 60b. Increase the distance between

Further, in the antenna device 1 shown in FIG. 6C, the right arm that is the antenna placement portion 50a extends downward, and the antenna 60a that is placed on the right arm and the right flank of the trunk that is the antenna placement portion 50b are placed. The antenna 60b is close. Therefore, as shown in FIG. 6D, the main control unit 20 controls the drive unit 30 so that the right arm extends upward, and increases the interval between the antenna 60a and the antenna 60b.

Further, in the antenna device 1 shown in FIG. 6E, the head that is the antenna placement portion 50a faces forward, the antenna 60a placed on the head, and the back side of the left shoulder of the trunk that is the antenna placement portion 50b Is close to the antenna 60b. Therefore, as shown in FIG. 6F, the main control unit 20 controls the drive unit 30 so that the head rotates 45 ° in the left direction, and increases the distance between the antenna 60a and the antenna 60b. Alternatively, as shown in FIG. 6G, the main control unit 20 controls the driving unit 30 so that the head rotates 90 ° leftward, and increases the interval between the antenna 60a and the antenna 60b.

Thus, according to the operation for improving the communication quality in this embodiment, the distance between the plurality of antennas can be increased. Thereby, about each antenna, degradation of communication quality by the influence of another antenna can be prevented, and communication quality can be improved successfully. Moreover, although this embodiment demonstrated the case where the number of antennas was two, it is not limited to this. For example, even when three or more antennas are used in the same communication system, increasing the distance between the antennas reduces the communication quality due to the proximity of other antennas. It can prevent and improve communication quality successfully. Further, in the present embodiment, the case where two antennas are used for communication, that is, the case where two antennas are used in the same communication system has been described. However, the present invention is not limited to this. For example, even when multiple antennas are used in different communication systems, increasing the distance between the multiple antennas prevents communication quality from deteriorating due to the proximity of other antennas. Can be improved successfully. In this case, in S <b> 2 described above, the main control unit 20 may be configured to determine whether or not the communication quality of at least one antenna among the communication qualities of each antenna is equal to or less than the threshold value 1, It may be configured to determine whether or not the communication quality of the total antenna communication quality is equal to or less than the threshold value 1. Further, the main control unit 20 calculates a product obtained by multiplying each of the communication qualities of each antenna by a coefficient, and of the communication qualities after being multiplied by the coefficient, is the communication quality of at least one antenna less than or equal to the threshold value 1? It may be configured to determine whether or not, or may be configured to determine whether or not the communication quality obtained by summing the communication qualities after being multiplied by a coefficient is equal to or less than the threshold value 1. This configuration is also the same as the configuration in which the main control unit 20 determines whether or not the communication quality is equal to or less than the threshold 2 in S5 described above.

(Modification)
In the antenna device 1 according to the modification of the present embodiment, as an operation for improving the communication quality, an operation of making the polarization planes of the plurality of antennas different from each other, more preferably, the polarization planes of the plurality of antennas are orthogonal to each other. An operation may be performed. The operation of making the polarization planes of the plurality of antennas different from each other is an operation that prevents the longitudinal directions of the antenna elements of the plurality of antennas from being parallel to each other, and the polarization planes of the plurality of antennas are orthogonal to each other. In other words, the operation to be performed is an operation in which the longitudinal directions of the antenna elements of the plurality of antennas are orthogonal to each other. Hereinafter, modifications of the second embodiment will be described with reference to (a) and (h) to (m) of FIG. FIGS. 6H to 6M are diagrams illustrating an example of the operation of the antenna device 1 according to the present modification.

In the antenna device 1 shown in FIG. 6A, the right arm that is the antenna arrangement part 50a extends downward, the left arm that is the antenna arrangement part 50b also extends downward, and the planes of polarization of the antenna 60a and the antenna 60b are Both are vertical. Therefore, as shown in FIG. 6 (h), the main control unit 20 controls the drive unit 30 so that the right arm extends diagonally downward to the right and the left arm extends diagonally downward to the left, and the antenna 60a and the antenna 60b are offset. The wave fronts are different from each other, more preferably orthogonal.

Alternatively, as shown in FIG. 6 (i), the main control unit 20 controls the drive unit 30 so that the right arm extends horizontally in the right direction, and the polarization planes of the antenna 60a and the antenna 60b are made different from each other. Preferably they are orthogonal. Alternatively, as shown in FIG. 6 (j), the main control unit 20 controls the drive unit 30 so that the right arm extends diagonally upward to the right and the left arm extends diagonally upward to the left, and the antenna 60a and the antenna 60b are offset. The wave fronts are different from each other, more preferably orthogonal. Alternatively, as shown in FIG. 6 (k), the main control unit 20 controls the drive unit 30 so that the right arm extends upward and the left arm extends horizontally in the left direction, and the polarization planes of the antenna 60a and the antenna 60b. Are different from each other, more preferably orthogonal. Alternatively, as shown in FIG. 6L, the main control unit 20 controls the drive unit 30 so that the right arm extends horizontally in the right direction and the left arm extends forward, and the polarization planes of the antenna 60a and the antenna 60b. Are different from each other, more preferably orthogonal. Alternatively, as shown in FIG. 6 (m), the main control unit 20 controls the drive unit 30 so that the right arm extends obliquely forward to the right and the left arm extends obliquely forward to the left, and the antenna 60a and the antenna 60b are biased. The wave fronts are different from each other, more preferably orthogonal.

As described above, according to the operation for improving the communication quality in the present modification, the polarization planes of the plurality of antennas can be made different from each other, more preferably orthogonal to each other. Thereby, even when the antenna device 1 is small and the interval between the plurality of antennas is narrow, it is possible to suppress mutual interference between the antennas. In addition, since it is possible to suppress deterioration of antenna characteristics due to mutual interference between antennas, it is possible to improve overall communication quality successfully. In addition, even when a plurality of antennas are used in different communication systems, it is possible to suppress deterioration of antenna characteristics due to mutual interference between antennas, so that overall communication quality can be improved successfully. it can. In this case, in S <b> 2 described above, the main control unit 20 may be configured to determine whether or not the communication quality of at least one antenna among the communication qualities of each antenna is equal to or less than the threshold value 1, It may be configured to determine whether or not the communication quality of the total antenna communication quality is equal to or less than the threshold value 1. Further, the main control unit 20 calculates a product obtained by multiplying each of the communication qualities of each antenna by a coefficient, and of the communication qualities after being multiplied by the coefficient, is the communication quality of at least one antenna less than or equal to the threshold value 1? It may be configured to determine whether or not, or may be configured to determine whether or not the communication quality obtained by summing the communication qualities after being multiplied by a coefficient is equal to or less than the threshold value 1. This configuration is also the same as the configuration in which the main control unit 20 determines whether or not the communication quality is equal to or less than the threshold 2 in S5 described above.

[Embodiment 3]
In this embodiment (third embodiment), other operations for improving communication quality will be described. FIG. 7 is a diagram illustrating an example of operation of the antenna device 1 according to the present embodiment (operation example 1 and operation example 2). In these operation examples, an operation for improving communication quality by improving the external antenna environment of the antenna 60 will be described.

(Operation example 1)
In the antenna device 1 shown in FIG. 7A, the right arm, which is the antenna placement portion 50, extends downward, and the antenna 60 is in a low position. Therefore, as shown in FIG. 7B, the main control unit 20 controls the drive unit 30 so that the right arm extends upward to increase the antenna height of the antenna 60. Further, in the antenna device 1 shown in FIG. 7C, the antenna device 1 lies down and the antenna 60 is in a low position. Therefore, the main control unit 20 controls the driving unit 30 so that the antenna device 1 stands to increase the antenna height of the antenna 60 as shown in FIG. Further, in the antenna device 1 shown in FIG. 7E, the antenna device 1 is sitting and the antenna 60 is in a low position. Therefore, as shown in FIG. 7F, the main control unit 20 controls the driving unit 30 so that the antenna device 1 stands, and increases the antenna height of the antenna 60. Further, as shown in FIG. 7G, the main control unit 20 controls the drive unit 30 to climb up to the table A or the like so as to increase the antenna height of the antenna 60, thereby increasing the antenna height of the antenna 60. To do.

As described above, according to the operation for improving the communication quality in this operation example, the antenna height can be increased by moving the antenna vertically upward. Thereby, the situation where the antenna is surrounded by surrounding obstacles and the external antenna environment is deteriorated can be removed, and the communication quality can be improved successfully.

(Operation example 2)
Further, in the antenna device 1 shown in FIG. 7A, the right arm that is the antenna placement portion 50 extends downward, and the plane of polarization of the antenna 60 is vertical. Therefore, as shown in FIG. 7H, the main control unit 20 controls the drive unit 30 so that the right arm extends horizontally in the right direction, and changes the polarization plane of the antenna 60 horizontally. Alternatively, as shown in (i) of FIG. 7, the main control unit 20 controls the drive unit 30 so that the right arm extends obliquely upward to the right, and changes the plane of polarization of the antenna. In this case, it is preferable that the main control unit 20 controls the drive unit 30 so that the right arm extends at 45 ° with respect to the horizontal plane, and changes the polarization plane of the antenna 60 to 45 ° with respect to the horizontal plane.

Further, in the antenna device 1 shown in FIG. 7J, the antenna device 1 is directed downward in the drawing. Therefore, as shown in FIG. 7 (k), the main control unit 20 controls the drive unit 30 so that the antenna device 1 rotates 90 ° to the left, and changes the polarization plane of the antenna 60 by 90 ° on the horizontal plane. To do. Alternatively, as shown in FIG. 7L, the main control unit 20 controls the drive unit 30 so that the antenna device 1 rotates 45 ° to the left, and changes the polarization plane of the antenna 60 by 45 ° on the horizontal plane. To do.

Thus, according to the operation for improving the communication quality in this operation example, the polarization plane of the antenna can be changed. Thereby, the polarization plane of the antenna can be changed to a polarization capable of performing good communication in the external antenna environment, and communication quality can be improved successfully.

FIG. 8 is a diagram illustrating another example (operation example 3 and operation example 4) of the operation of the antenna device 1 according to the present embodiment. In the operation example 3, the operation for improving the communication quality by improving the ground condition of the antenna 60 will be described. In the operation example 4, the antenna 60 is brought close to the auxiliary element 80, and the antenna 60, the auxiliary element 80, The operation for improving the communication quality by coupling in high frequency will be described. Here, the auxiliary element 80 is an element that improves the antenna characteristics of the antenna 60 by being close to the antenna 60 and coupled to the antenna 60 in high frequency. For example, when the auxiliary element 80 is disposed in the body part as shown in FIG. 8G, it is most desirable that the auxiliary element 80 be disposed outside the body part. It is desirable to arrange at a position close to the outside. By arranging the auxiliary element 80 in this manner, the antenna 60 and the auxiliary element 80 are closer to each other when the right arm, which is the antenna arrangement portion 50, is close to the trunk, as shown in FIG. Since the high-frequency coupling becomes stronger, the auxiliary element 80 can be excited more effectively. Thereby, since the antenna characteristic of the antenna 60 improves, communication quality can be improved successfully.

(Operation example 3)
In the antenna device 1 shown in FIG. 8A, the ground of the antenna 60 is configured by the portion 40 (including the left arm) other than the right arm that is the antenna placement portion 50, and the right arm and the portion that are the antenna placement portion 50. The left arm, which is 40, extends downward. Therefore, as shown in FIG. 8B, the main control unit 20 controls the drive unit 30 so that the left arm extends horizontally in the left direction, and deforms the ground (GND) of the antenna 60. Alternatively, the main control unit 20 controls the drive unit 30 so that the antenna device 1 sits on the ground B as shown in FIG. In this case, the ground of the antenna device 1 is further grounded and the ground is stabilized. Alternatively, as shown in FIG. 8D, the main control unit 20 controls the drive unit 30 so that the left arm and the right arm extend upward to move the antenna 60 away from the ground and to deform the ground of the antenna 60. Let Alternatively, as shown in FIG. 8E, the main control unit 20 controls the drive unit 30 so that the antenna device 1 sits on the ground B and further extends the right arm upward, and moves the antenna 60 away from the ground. At the same time, the ground of the antenna 60 is deformed, and the ground of the antenna device 1 is grounded to stabilize the ground.

As described above, according to the operation for improving the communication quality in this operation example, (1) the operation of deforming the ground of the antenna 60 in the antenna device 1, and (2) the ground of the antenna 60 in the antenna device 1 is grounded. Operation and (3) At least one operation of moving the antenna 60 away from the ground of the antenna 60 in the antenna device 1 can be executed. Thereby, deterioration of the communication quality of the antenna 60 due to the influence of the ground can be prevented, and the communication quality can be improved successfully.

(Operation example 4)
Further, in the antenna device 1 shown in FIG. 8F, the right arm, which is the antenna placement portion 50, extends horizontally in the right direction, and the auxiliary element 80 is placed on the right side of the trunk. Therefore, as shown in FIG. 8G, the main control unit 20 controls the drive unit 30 so that the right arm extends downward, and brings the antenna 60 and the auxiliary element 80 close to each other and couples them in high frequency.

Further, in the antenna device 1 shown in FIG. 8 (h), the antenna 60 is arranged on the right flank of the trunk which is the antenna arrangement part 50, and the right arm which is the part 40 where the auxiliary element 80 is arranged horizontally in the right direction. It is growing. Therefore, as shown in FIG. 8I, the main control unit 20 controls the drive unit 30 so that the right arm extends downward, and brings the antenna 60 and the auxiliary element 80 close to each other and couples them in high frequency.

Further, in the antenna device 1 shown in FIG. 8J, the right arm that is the antenna placement portion 50 extends horizontally in the right direction, and the left arm that is the portion 40 where the auxiliary element 80 is placed extends downward. . Therefore, as shown in FIG. 8 (k), the main control unit 20 controls the driving unit 30 so that the antenna device 1 assembles both arms, brings the antenna 60 and the auxiliary element 80 close to each other, and couples them in high frequency. Let

Thus, according to the operation for improving the communication quality in this operation example, the antenna and the auxiliary element can be coupled at a high frequency. Thereby, the auxiliary element is excited and the antenna characteristics are improved, so that the communication quality can be improved successfully.

(Other operation examples)
The main control unit 20 may set the position of the antenna 60 corresponding to the communication frequency in advance, and cause the driving unit 30 to perform an operation of moving the antenna to a predetermined position according to the communication frequency.

Further, the antenna device 1 according to the present invention may be configured to individually implement the above-described embodiment, modification example, or operation example, or may be configured in order (for example, communication based on Embodiment 1). If the communication quality does not improve after performing the operation (S3) for improving the quality (NO in S5), the operation for improving the communication quality based on the modification of the first embodiment (again, S3) May be performed).

[Example of software implementation]
The control block (particularly the main control unit 20) of the antenna device 1 may be realized by a logic circuit (hardware) formed in an integrated circuit (IC chip) or the like, or software using a CPU (Central Processing Unit). It may be realized by.

In the latter case, the antenna device 1 includes a CPU that executes instructions of a program that is software that realizes each function, a ROM (Read Only Memory) in which the program and various data are recorded so as to be readable by a computer (or CPU), or A storage device (these are referred to as “recording media”), a RAM (Random Access Memory) for expanding the program, and the like are provided. And the objective of this invention is achieved when a computer (or CPU) reads the said program from the said recording medium and runs it. As the recording medium, a “non-temporary tangible medium” such as a tape, a disk, a card, a semiconductor memory, a programmable logic circuit, or the like can be used. The program may be supplied to the computer via an arbitrary transmission medium (such as a communication network or a broadcast wave) that can transmit the program. The present invention can also be realized in the form of a data signal embedded in a carrier wave in which the program is embodied by electronic transmission.

[Summary]
An antenna device (1) according to an aspect 1 of the present invention includes an antenna (60), a drive unit (30) that moves a specific part of the device, and a communication quality measurement unit (wireless circuit) that measures the communication quality of the antenna. Unit 10) and when the communication quality of the antenna measured by the communication quality measurement unit does not satisfy the first standard, the driving unit performs a preset operation for improving the communication quality of the antenna. And a control unit (main control unit 20). According to said structure, an antenna apparatus performs the preset operation | movement for improving the communication quality of the said antenna, when the communication quality of an antenna does not satisfy | fill a 1st reference | standard. Thereby, in the antenna apparatus provided with the drive part which moves the specific site | part of an own apparatus, it can communicate with favorable communication quality.

In the antenna device according to aspect 2 of the present invention, in the aspect 1, the control unit causes the driving unit to perform an operation selected from a plurality of preset operations for improving the communication quality of the antenna. After the first operation selected from the plurality of preset operations is performed by the driving unit, the communication quality of the antenna measured by the communication quality measurement unit is second. When the above criterion is not satisfied, the driving unit may be configured to perform a second operation different from the first operation selected from the plurality of preset operations. According to the above configuration, in the first operation selected from a plurality of preset operations for improving the communication quality of the antenna, the control is performed when the communication quality of the antenna cannot be sufficiently improved. By causing the drive unit to perform the second operation different from the first operation, the communication quality of the antenna can be successfully improved.

In the antenna device according to aspect 3 of the present invention, in the above aspect 2, the second standard may exhibit higher communication quality than the first standard. According to said structure, communication quality can be improved and it becomes possible to perform more stable operation | movement. For example, when the first standard and the second standard are set to the same condition, the antenna device ends the operation for improving the communication quality when the communication quality satisfies the second standard. After that, when the communication quality deteriorates due to the autonomous operation of the antenna device, the communication quality of the antenna does not satisfy the second standard, that is, the first standard does not satisfy the communication quality again. It is necessary to perform an action for improvement. On the other hand, when the second standard is set to show higher communication quality than the first standard, even if the communication quality deteriorates somewhat due to the autonomous operation of the antenna device, the antenna communication The quality satisfies the first standard, and the antenna device does not need to perform an operation for improving the communication quality, and can continue the autonomous distributed operation. Therefore, the antenna device can perform a stable operation.

In the antenna device according to aspect 4 of the present invention, in the above-described aspects 1 to 3, the preset operation for improving the communication quality of the antenna moves the antenna away from a part adjacent to the antenna in the own device. Operation, operation of moving the part adjacent to the antenna in the own device away from the antenna, operation of moving the antenna away from the noise source provided in the own device, operation of moving the noise source provided in the own device away from the antenna, the antenna , Operation to move vertically upward, operation to change the polarization plane of the antenna, operation to deform the ground of the antenna in the own device, operation to ground the ground of the antenna in the own device to the ground, the antenna in the own device The operation of moving the antenna away from the ground, Operation to obtain close to the auxiliary element, and the auxiliary element device itself comprises, may be one or more operations selected from the group consisting of operating close to the antenna.

An antenna device according to aspect 5 of the present invention includes the plurality of antennas according to aspects 1 to 3, and a preset operation for improving communication quality of the antenna is performed by the plurality of antennas. One or more operations selected from the group consisting of an operation of increasing the distance between them and an operation of making the planes of polarization of the plurality of antennas different from each other may be used. According to said structure, the communication quality of an antenna can be improved successfully.

The antenna device according to each aspect of the present invention may be realized by a computer. In this case, the antenna device is controlled by causing the computer to realize the antenna device by operating the computer as each unit included in the antenna device. A program and a computer-readable recording medium on which the program is recorded also fall within the scope of the present invention.

The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention. Furthermore, a new technical feature can be formed by combining the technical means disclosed in each embodiment.

The present invention can be used for an antenna device provided with a drive unit that moves a specific part of the device itself.

1 antenna device 10 radio circuit part (communication quality measurement part) 20 main control part (control part) 30 drive part 40 parts 50, 50a, 50b antenna placement parts 60, 60a, 60b antenna

Claims (5)

An antenna,
A drive unit for moving a specific part of the device itself;
A communication quality measuring unit for measuring the communication quality of the antenna;
A control unit that causes the driving unit to perform a preset operation for improving the communication quality of the antenna when the communication quality of the antenna measured by the communication quality measurement unit does not satisfy a first standard; An antenna device comprising the antenna device. The control unit
The driving unit is configured to perform an operation selected from a plurality of preset operations for improving the communication quality of the antenna; and
When the communication quality of the antenna measured by the communication quality measurement unit does not satisfy the second standard after causing the drive unit to perform a first operation selected from the plurality of preset operations, The antenna device according to claim 1, wherein the driving unit is configured to perform a second operation different from the first operation selected from a plurality of preset operations. 3. The antenna device according to claim 2, wherein the second standard shows higher communication quality than the first standard. A preset operation for improving the communication quality of the antenna is as follows.
An operation of moving the antenna away from a part adjacent to the antenna in its own device;
An operation of moving the part adjacent to the antenna away from the antenna in its own device;
Operation to move the antenna away from the noise source of the device;
Operation to move the noise source of the device away from the antenna,
Moving the antenna vertically upward;
Operation to change the plane of polarization of the antenna,
The operation of deforming the ground of the antenna in its own device;
The operation of grounding the antenna of the above device to the ground,
Operation to move the antenna away from the ground of the antenna in its own device;
The operation of bringing the antenna close to an auxiliary element included in the own device and one or more operations selected from the group consisting of moving the auxiliary element included in the own device closer to the antenna. The antenna device according to any one of 1 to 3. A plurality of the antennas,
A preset operation for improving the communication quality of the antenna is as follows.
The one or more operations selected from the group consisting of an operation for increasing the distance between the plurality of antennas and an operation for making the planes of polarization of the plurality of antennas different from each other. The antenna device according to any one of the above.

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