JP5836080B2 - Mounting base, charging base, short-range wireless device, and position detection method - Google Patents

Description

  The present invention relates to a mounting table, a charging table, a short-range wireless device, and a position detection method, and more specifically, a mounting table on which a portable wireless device is mounted, a charging table on which a portable wireless device is mounted, and a portable device. The present invention relates to a short-range wireless device on which a wireless device is mounted and performs short-range wireless communication with the portable wireless device, and a position detection method for the portable wireless device mounted on a mounting table.

  2. Description of the Related Art In recent years, mobile wireless device mounting bases for various purposes such as charging bases for mobile phone terminals and readers that read FeliCa (registered trademark) chips mounted on mobile phone terminals have been developed.

  Patent Document 1 discloses a charging stand that transfers power from a power transmission coil to a power receiving coil that is electromagnetically coupled to charge a built-in battery of a battery built-in device, and carries power by approaching the power receiving coil of the battery built-in device. A power transmission coil, a case having a built-in power transmission coil and a top surface plate for setting a battery built-in device on the top surface, and a moving mechanism that is built in the case and moves the power transmission coil so as to approach the power receiving coil And a position detection controller for detecting the position of the battery built-in device set on the top plate and controlling the moving mechanism to bring the power transmission coil closer to the power receiving coil of the battery built-in device, the position detection controller Includes a plurality of position detection coils fixed to the inner surface of the top plate, a pulse power source for supplying a pulse signal to the position detection coil, and a position from the pulse power source. A receiving circuit that receives an echo signal that is excited by a pulse signal supplied to the detection coil and is output from the power reception coil and the power transmission coil to the position detection coil, and a position of the power reception coil and the power transmission coil from the echo signal that is received by the reception circuit The position detection controller detects the position of the power receiving coil and controls the moving mechanism so that the power transmitting coil approaches the power receiving coil, and detects the position of the power transmitting coil. Thus, there is described a charging stand that moves a power transmission coil to a reference position, or detects a relative position between the power transmission coil and the power reception coil and moves so as to approach the power reception coil.

JP 2011-4474 A (published January 6, 2011)

  In the charging stand described in Patent Document 1, charging is successfully performed by detecting the position of a device set on the upper surface plate by a plurality of position detection coils fixed to the inner surface of the upper surface plate.

  However, when a portable wireless device is set on the top plate of the charging base, the position detection coil fixed on the inner surface of the top plate is close to the antenna of the portable wireless device, the resonance frequency of the antenna is shifted, or the position detection is performed. The antenna characteristics of the portable wireless device may be deteriorated, for example, the coil and the antenna are combined to prevent radiation.

  The present invention has been made in view of the above problems, and provides a technique for suppressing deterioration of antenna characteristics of a portable wireless device when detecting the position of the portable wireless device mounted on a mounting table. The main purpose is to do.

  In order to solve the above-described problem, the mounting table according to the present invention includes a mounting unit for mounting the portable wireless device and position detection for detecting the position of the portable wireless device mounted on the mounting unit. And a moving means for moving at least one of the position detection unit and the portable wireless device in a direction in which the position detection unit and the portable wireless device are separated from each other.

  According to the above configuration, since the moving unit moves at least one of the position detection unit and the portable wireless device in the direction in which the position detection unit and the portable wireless device are separated from each other, the position detection unit and the portable wireless device are provided. Can be appropriately approached or separated from each other. Thus, even when detecting the position of the portable wireless device placed on the mounting table, the position detection unit can be moved away from the portable wireless device while the position is not detected. It is possible to suppress the deterioration of the antenna characteristics of the portable wireless device.

  The mounting table according to the present invention includes a control unit that controls the moving unit so that the position detection unit and the portable wireless device are separated from each other after the position detection unit detects the position of the portable wireless device. It is preferable.

  According to the above configuration, after the position detection unit detects the position of the portable wireless device, the position detection unit is separated from the portable wireless device at an appropriate timing in order to separate the position detection unit and the portable wireless device. Can do. Thereby, while the detection of the position of the portable wireless device is completed and the position detection is not necessary, the position detection unit and the portable wireless device are separated from each other, and the deterioration of the antenna characteristics of the portable wireless device can be suitably suppressed. it can.

  In the mounting table according to the present invention, the control unit further includes a displacement detection unit that detects a displacement of the portable wireless device in a state in which the position detection unit and the portable wireless device are separated from each other. When the displacement detection unit detects the displacement of the portable wireless device, it is preferable to control the moving unit so that the position detection unit and the portable wireless device approach each other.

  According to the above configuration, when the position detection unit detects the position of the portable wireless device and the position detection unit and the portable wireless device are separated, the position detection unit and the portable wireless device are displaced. In order to make the wireless device approach, the position detection unit can preferably detect the position of the mobile wireless device after displacement. Thereby, the position of the portable wireless device can be detected more accurately.

  The charging stand according to the present invention includes a mounting table according to the present invention, a power transmission unit for performing non-contact power transmission to the portable wireless device, and a position of the portable wireless device detected by the position detecting unit, And a power transmission unit moving means for moving the power transmission unit.

  According to said structure, since a power transmission part is moved according to the position of the portable wireless apparatus which the position detection part detected, the non-contact electric power transmission to a portable wireless apparatus can be performed successfully.

  The short-range wireless device according to the present invention includes a mounting table according to the present invention, an antenna for performing proximity wireless communication between the portable wireless device, and the position of the portable wireless device detected by the position detection unit. Accordingly, an antenna moving means for moving the antenna is provided.

  According to said structure, according to the position of the portable radio | wireless machine which the position detection part detected, in order to move the antenna for performing short-distance radio | wireless communication, it can perform near field radio | wireless communication with a portable radio | wireless machine successfully. Can do.

  A position detection method according to the present invention is a position detection method for detecting the position of a portable radio device mounted on a mounting table having a position detection unit, wherein the position detection unit determines the position of the portable radio device. A position detecting step for detecting, and a moving step for moving at least one of the position detecting unit and the portable wireless device so that the position detecting unit and the portable wireless device are separated from each other after the position detecting step; It is characterized by including.

  According to said method, there exists an effect equivalent to the mounting base which concerns on this invention.

  According to the present invention, since the position detection unit can be appropriately moved away from the portable wireless device, it is possible to suppress deterioration of antenna characteristics of the portable wireless device caused by the position detection unit.

It is a schematic diagram which shows roughly the fundamental structure of the mounting base which concerns on one Embodiment of this invention. It is a block diagram which shows roughly the fundamental structure of the mounting base which concerns on one Embodiment of this invention. It is a schematic diagram which shows roughly the example of a structure of the mounting base which concerns on one Embodiment of this invention. It is a block diagram which shows roughly the example of a structure of the mounting base which concerns on one Embodiment of this invention. It is a flowchart explaining an example of operation | movement of the mounting base which concerns on one Embodiment of this invention. It is a schematic diagram which shows roughly the structure of the charging stand which concerns on one Embodiment of this invention. It is a block diagram showing roughly an example of composition of a charge stand concerning one embodiment of the present invention. It is a flowchart explaining the example of operation | movement of the charging stand which concerns on one Embodiment of this invention. It is a schematic diagram which shows schematically the structure of the short-distance radio | wireless apparatus which concerns on one Embodiment of this invention. It is a block diagram which shows roughly the example of a structure of the short-distance radio | wireless apparatus which concerns on one Embodiment of this invention. It is a flowchart explaining the example of operation | movement of the short distance radio | wireless apparatus which concerns on one Embodiment of this invention.

(Mounting table)
FIG. 1 is a schematic diagram schematically showing a basic configuration of a mounting table 100 according to an embodiment of the present invention. FIG. 2 is a block diagram schematically showing the basic configuration of the mounting table 100.

  As shown in FIGS. 1 and 2, the mounting table 100 includes a mounting unit 10, a position detection unit 20, and a position detection unit moving unit (moving unit) 21.

  The placement unit 10 is a part on which the portable wireless device 1 is placed, and may be, for example, a flat surface installed horizontally.

  The position detection unit 20 is a sensor that detects the position of the portable wireless device 1 placed on the placement unit 10, and the type of the sensor is not particularly limited, but for example, a plurality of matrix coils arranged in a planar shape are used. A position of the portable wireless device 1 is detected by detecting a coupling state between the matrix coil and a conductor included in the portable wireless device 1 (for example, a receiving coil for receiving non-contact power transmission as described later). May be a sensor that detects a position of the portable wireless device 1 by detecting that the portable wireless device 1 has covered a specific photoelectric device. Or a plurality of piezoelectric elements arranged in a plane, detecting that the portable wireless device 1 is placed on a specific piezoelectric element, and determining the position of the portable wireless device 1 It may be a sensor to detect.

  FIG. 1B is a top view illustrating an example of the configuration of the position detection unit 20. As shown in FIG. 1B, in one example, the position detection unit 20 includes a plurality of rectangular coils 20a parallel to each other and a plurality of rectangular coils 20b parallel to each other orthogonal to the rectangular coils 20a in a matrix. Has been placed. Each of the rectangular coils 20a and 20b is connected to the control unit 20c, and can detect a coupling state between each of the rectangular coils 20a and 20b and the power receiving coil of the portable wireless device 1. Thereby, the position detection unit 20 (the control unit 20c thereof) detects the position of the portable wireless device 1. In another example, the position detection unit 20 has a configuration in which various sensors such as a micro coil, a photoelectric element, and a piezoelectric element are arranged at each intersection of the rectangular coils 20a and 20b in FIG. May be.

  The position detection unit moving unit 21 moves the position detection unit 20 in the vertical vertical direction on the mounting table 100. In other words, the position detection unit 20 can move the position detection unit 20 and the portable wireless device 1 closer to or away from each other. is there. As will be described later, the position detection unit moving unit 21 may be automatically controlled by a control circuit. In this case, the position detection part moving part 21 can be comprised by a well-known actuator etc., for example. Further, the position detection unit moving unit 21 may be manually operated.

  FIG. 1C is a schematic diagram illustrating an example of the configuration of the position detection unit moving unit 21. As shown in FIG. 1C, in one example, the position detection unit moving unit 21 includes a combination of a meshing linear gear 21a and a gear 21b. The linear gear 21 a is fixed to the position detection unit 20. The position detector 20 can be moved up and down by rotating the gear 21b with a motor or the like.

  Moreover, the position detection part moving part 21 is not limited to what moves the position detection part 20 to the vertical up-down direction, Furthermore, you may move also to a horizontal direction or another direction. In this case, for example, in the example of FIG. 1 (c), two combinations of gears and linear gears may be used so as to be movable in two axes.

  Further, in the present embodiment, the mounting table 100 includes the position detection unit moving unit 21 that moves the position detection unit 20, but the present invention is not limited thereto, and is replaced with the position detection unit moving unit 21. Alternatively, in addition, the portable wireless device 1 is held, and the portable wireless device moving means for moving the portable wireless device 1 in the direction in which the position detecting unit 21 and the portable wireless device 1 are separated from each other, or the position detecting unit 21 and the portable device. You may provide the mounting part movement means to which the mounting part 10 in which the portable radio | wireless machine 1 is mounted is moved in the direction which the radio | wireless machine 1 separates / connects. Also by such means, the position detection unit 20 and the portable wireless device 1 can be moved closer to or away from each other, as with the position detection unit moving unit 21.

  The mounting table 100 can detect the position of the portable wireless device 1 mounted on the mounting unit 10 by the position detection unit 20. Thereby, the mounting table 100 can perform various operations using the position detected by the position detection unit 20. Examples of the use of the position detected by the position detection unit 20 include, for example, an example of a charging stand and a short-range wireless device as will be described later, but the present invention is not limited to this, and the mounted portable wireless device It can be generally applied to a mounting table for detecting the position of the machine.

  Here, the portable wireless device 1 includes an antenna 5 for wireless communication. Since the position detection unit 20 includes a conductor such as a matrix coil and wiring, when the antenna 5 and the position detection unit 20 approach each other, the resonance frequency of the antenna 5 is shifted or the position detection coil and the antenna are coupled. As a result, the antenna characteristics of the antenna 5 may deteriorate, for example, radiation may be hindered.

  On the other hand, since the mounting table 100 includes the position detection unit moving unit 21, the position detection unit 20 and the portable wireless device 1 can be appropriately approached or separated from each other. Thereby, even if it is a case where the position of the portable radio | wireless machine 1 mounted in the mounting base 100 is detected, since the position detection part 20 can be kept away from the portable radio | wireless machine 1 while not detecting a position, Deterioration of the antenna characteristics of the antenna 5 due to the position detection unit 20 can be suppressed.

(Example with control means)
FIG. 3 is a schematic diagram schematically showing an example of the configuration when the mounting table 100 includes a control unit (control means) 30. FIG. 4 is a block diagram schematically illustrating an example of a configuration when the mounting table 100 includes the control unit 30.

  First, the arrangement of the control unit 30 will be described. As shown in FIG. 3A, the control unit 30 can be provided to accompany the position detection unit 20. With this configuration, movable wiring can be reduced. Further, as shown in FIG. 3B, the control unit 30 may be provided independently of the position detection unit 20. In this case, for example, the control unit 30 and the position detection unit 20 may be connected by a flexible wiring.

  Next, the operation of the control unit 30 will be described. As shown in FIG. 4A, in one example, the control unit 30 may send a control signal C <b> 1 that designates a position to which the position detection unit 20 should move to the position detection unit movement unit 21. For example, when the position detection unit moving unit 21 is configured as shown in FIG. 1C, the control unit 30 rotates the gear 21b by a predetermined angle with respect to a motor or the like that rotates the gear 21b. A control signal C1 may be sent.

  As described above, since the control unit 30 is configured to send the control signal C1 to the position detection unit moving unit 21, the mounting table 100 can automatically move the position detection unit 20.

  Further, as shown in FIG. 4B, in another example, the position detection unit 20 sends a control signal C2 indicating that the detection of the position of the portable wireless device 1 is completed to the control unit 30, After receiving the control signal C2, the control unit 30 sends a control signal C3 that instructs the position detection unit moving unit 21 to move the position detection unit 20 to a predetermined position away from the portable wireless device 1. Can be a thing.

  This will be described with reference to the flowchart shown in FIG. 5. First, when the portable wireless device 1 is placed on the placement unit 10 (step S <b> 1), the position detection unit 20 detects the position of the portable wireless device 1. Is detected (step S2), and a control signal C2 is sent to the control unit 30. The control unit 30 that has received the control signal C2 sends the control signal C3 to the position detection unit moving unit 21, and the position detection unit moving unit 21 moves the position detection unit 20 based on the control signal C3 (step S3). ).

  As described above, since the control unit 30 receives the control signal C2 and sends the control signal C3, the mounting table 100 moves the position detection unit 20 from the portable wireless device 1 at an appropriate timing. Can be separated. Thereby, while the detection of the position of the portable wireless device 1 is completed and the detection of the position is not necessary, the position detection unit 20 and the portable wireless device 1 are separated from each other, and the deterioration of the antenna characteristics of the antenna 5 is suitably suppressed. be able to.

  In addition, as illustrated in FIG. 4C, in yet another example, the position detection unit 20 sets the control signal C <b> 2 indicating that the detection of the position of the portable wireless device 1 is completed, and the position of the portable wireless device 1. A control signal C4 is sent to the control unit 30. After receiving the control signals C2 and C4, the control unit 30 indicates a position where the position detection unit 20 should move with respect to the position detection unit moving unit 21. The designated control signal C5 may be sent. And the control part 30 determines the position which the position detection part 20 should move based on the control signal C4 which shows the position of the portable radio | wireless machine 1, and produces | generates the control signal C5.

  At this time, for example, the control signal C4 may be information indicating the detected coordinates of the portable wireless device 1 when the placement unit 10 (upper surface) is viewed as a two-dimensional plane. In contrast, the control unit 30 moves the position detection unit 20 in the horizontal direction to a position where the center or end of the position detection unit 20 is farthest from the detection coordinates within the movable range of the position detection unit 20. You may come to let me. Thereby, the control unit 30 can efficiently separate the position detection unit 20 from the portable wireless device 1.

  In another embodiment, the position detection unit 20 may be configured by a plurality of sections that can move independently, and the control unit 30 may move only the sections corresponding to the detected coordinates. In this case, for example, the position detection unit 20 is divided into n × m vertical and horizontal sections, and the position detection unit moving unit 21 is configured to be able to move each section of the position detection unit 20 independently. ing. The control unit 30 sends a control signal C5 to the position detection unit moving unit 21, thereby dividing a section of the position detection unit 20 that can affect the antenna of the wireless communication device 1 (for example, detection indicated by the control signal C4). Only the section including the coordinates) is moved away from the wireless communication device 1. Thereby, while suppressing the influence of the position detection part 20 with respect to the radio | wireless communication apparatus 1, a position detection can be continued in the area | region where the radio | wireless communication apparatus 1 is not mounted. Thereby, for example, a mounting table (charging table with position detecting means) for charging a plurality of wireless communication devices can be suitably configured. That is, when one wireless communication device is placed, the influence of the position detection unit 20 on the one wireless communication device is suppressed, and in the region where the one wireless communication device is not placed, Since position detection can be performed, the position detection unit 20 can successfully detect the position of the other wireless communication device when another wireless communication device is placed. Thereby, a mounting table on which a plurality of wireless communication devices are mounted can be suitably configured.

  Thus, after the control unit 30 receives the control signals C2 and C4, the position detection unit 20 determines a position to move based on the control signal C4, and sends the control signal C5 to the position detection unit movement unit 21. The operation of the position detection unit moving unit 21 can be optimized.

[Charging stand]
Moreover, you may comprise the mounting base which concerns on this invention as a charging stand of a portable radio. FIG. 6 is a schematic diagram schematically showing a basic configuration of the charging stand 101 according to the embodiment of the present invention. FIG. 7 is a block diagram schematically showing an example of the basic configuration of the charging stand 101. FIG. 8 is a flowchart for explaining an example of the operation of the charging stand 101.

  As shown in FIGS. 6 and 7, the charging stand 101 includes a portable wireless device in addition to the same members as the placement table 100 such as the placement unit 10, the position detection unit 20, the position detection unit moving unit 21, and the control unit 30. 2, a charging power transmission coil (power transmission unit) 40 and a power transmission coil moving unit (power transmission unit moving means) 41 are provided. The portable wireless device 2 includes a charging power receiving coil 6 in addition to the antenna 5.

  The charging power transmission coil 40 performs non-contact power transmission with the charging power reception coil 6 included in the portable wireless device 2. For example, a known power transmission coil suitable for an electromagnetic induction method may be used (for example, See Qi System Description Wireless Power Transfer, Volume I: Low Power, Part 1: Interface Definition, Version 1.0.2, April 2011). Further, the charging stand 101 includes a control circuit (not shown) for controlling the charging power transmission coil 40 and a power supply (not shown) for supplying power to the charging power transmission coil 40.

  In addition, this invention is not limited to the form which performs non-contact electric power transmission by an electromagnetic induction system, An electrostatic induction system, a magnetic field / electric field resonance system, a line / line coupling system, a line / resonator coupling system, a microwave power transmission system Alternatively, a laser power transmission method or the like may be used. In this case, instead of the charging power transmission coil 40, a known power transmission unit suitable for each method may be used.

  Similarly to the position detection unit moving unit 21, the power transmission coil moving unit 41 only needs to move the charging power transmission coil 40 in accordance with control from the control unit 30.

  For example, as illustrated in FIG. 6, the charging power transmission coil 40 may be disposed closer to the placement unit 10 than the position detection unit 20. Thereby, it can avoid suitably that the movement of the power transmission coil 40 for charge and the movement of the position detection part 20 collide. However, the arrangement of the charging power transmission coil 40 is not limited to this. For example, if the position detection unit 20 moves in the horizontal direction, the charging power transmission coil 40 is more than the mounting unit 10 than the position detection unit 20. It is possible to avoid the collision of the movement of the charging power transmission coil 40 and the movement of the position detection unit 20 even if arranged on the opposite side.

  Next, the operation of the control unit 30 will be described. Note that the transmission and reception of control signals between the control unit 30 and the position detection unit 20 and the position detection unit moving unit 21 are the same as those described in the mounting table 100, and thus the description thereof is omitted.

  As shown in FIG. 7A, in one example, when the control unit 30 receives a control signal C4 indicating the position of the portable wireless device 2 from the position detection unit 20, the control unit 30 sends a control signal C6 to the power transmission coil moving unit 41. Thus, the charging power transmission coil 40 is brought close to the charging power reception coil 6. Thereby, the portable wireless device 2 can be suitably charged. Further, the control unit 30 moves the position detection unit 20 away from the mounting unit 10 after the detection of the position of the portable wireless device 2 by the position detection unit 20 is completed, similarly to the control in the mounting table 100. Deterioration of antenna characteristics of the antenna 5 can be suppressed.

  This will be described with reference to the flowchart shown in FIG. 8A. First, when the portable wireless device 1 is placed on the placement unit 10 (step S11), the position detection unit 20 is changed to the portable wireless device. 2 is detected (step S12), and control signals C2 and C4 are sent to the control unit 30. And the control part 30 which received control signals C2 and C4 sends the control signal C5 to the position detection part moving part 21, and the position detection part movement part 21 moves the position detection part 20 based on the control signal C5 ( Step S13). In parallel, the control unit 30 sends a control signal C6 to the power transmission coil moving unit 41, and the power transmission coil moving unit 41 brings the charging power transmission coil 40 closer to the charging power receiving coil 6 based on the control signal C6. (Step S13). Then, non-contact power transmission is performed between the charging power transmission coil 40 and the charging power reception coil 6 to perform charging (step S14).

  As described above, after the position detection unit 20 detects the position of the portable wireless device 2, the control unit 30 moves the position detection unit 20 away from the placement unit 10 and based on the position detected by the position detection unit 20. By bringing the charging power transmission coil 40 closer to the charging power receiving coil 6, the charging stand 101 can efficiently perform charging while suppressing deterioration of the antenna characteristics of the antenna 5.

  In addition, the control unit 30 may be configured to detect the position of the portable wireless device 2 again when the portable wireless device 2 is displaced (displacement) during charging. In this case, as illustrated in FIG. 7B, the charging stand 101 may include a coupling amount detection unit (displacement detection unit) 42 for detecting the displacement of the portable wireless device 2.

  During the charging, the coupling amount detection unit 42 sends a control signal C7 indicating the coupling amount between the charging power transmission coil 40 and the charging power reception coil 6 to the control unit 30. Since the change in the coupling amount serves as an index of displacement of the portable wireless device 2, the control unit 30 can detect the displacement of the portable wireless device 2 based on the control signal C7.

  And the control part 30 will send the control signal C8 which instruct | indicates that the position detection part 20 is made to approach the mounting part 10 to the position detection part movement part 21, if the displacement of the portable radio | wireless machine 2 is detected. In response to the control signal C <b> 8, the position detection unit moving unit 21 causes the position detection unit 20 to approach the placement unit 10. Then, the position detection unit 20 first determines whether or not the portable wireless device 2 is placed on the placement unit 10. If the portable wireless device 2 is placed on the placement unit 10, the position of the portable wireless device 2 is detected, and control signals C 2 and C 4 are sent to the control unit 30. If the portable wireless device 2 is not placed on the placement unit 10, it is ready for the next charging at the same position.

  This will be described with reference to the flowchart shown in FIG. 8B. First, when the portable wireless device 1 is placed on the placement unit 10 (step S21), the position detection unit 20 is changed to the portable wireless device. 2 is detected (step S22), and control signals C2 and C4 are sent to the controller 30. And the control part 30 which received control signals C2 and C4 sends the control signal C5 to the position detection part moving part 21, and the position detection part movement part 21 moves the position detection part 20 based on the control signal C5 ( Step S23). In parallel, the control unit 30 sends a control signal C6 to the power transmission coil moving unit 41, and the power transmission coil moving unit 41 brings the charging power transmission coil 40 closer to the charging power receiving coil 6 based on the control signal C6. (Step S23). Then, non-contact power transmission is performed between the charging power transmission coil 40 and the charging power reception coil 6 to perform charging (step S24).

  Then, the control unit 30 determines whether the charging is completed (step S25). When the charging is not completed, the control unit 30 is based on the control signal C7 from the coupling amount detection unit 42, and the portable wireless device 2 Is determined (step S26). If there is no position shift, the process returns to step S24 to continue charging. On the other hand, when there is a position shift, the control unit 30 sends a control signal C8 to the position detection unit moving unit 21, and the position detection unit moving unit 21 moves the position detection unit 20 to the placement unit 10 based on the control signal C8. (Step S27).

  Subsequently, the position detection unit 20 determines whether or not the portable wireless device 2 is placed on the placement unit 10 (step S28). If the portable wireless device 2 is placed on the placement unit 10, the process returns to step S <b> 22, and the position detection unit 20 detects the position of the portable wireless device 2. If the portable wireless device 2 is not placed on the placement unit 10, the position detection unit 20 is made to stand by at the same position.

  As described above, when a position shift of the portable wireless device 2 is detected during charging, the position information is updated by bringing the position detection unit 20 close to the placement unit 10 and performing the position detection, thereby carrying the mobile phone. Even if the radio apparatus 2 is misaligned, it can be charged appropriately.

(Short range wireless device)
The mounting table according to the present invention may be configured as a short-range wireless device (for example, a FeliCa (registered trademark) reader) that performs short-range wireless communication with a portable wireless device. FIG. 9 is a schematic diagram schematically showing a basic configuration of the short-range wireless apparatus 102 according to the embodiment of the present invention. FIG. 10 is a block diagram schematically illustrating an example of a basic configuration of the short-range wireless device 102. FIG. 11 is a flowchart for explaining an example of the operation of the short-range wireless device 102.

  As shown in FIGS. 9 and 10, the short-range wireless device 102 is portable in addition to the same members as the mounting table 100 such as the mounting unit 10, the position detection unit 20, the position detection unit moving unit 21, and the control unit 30. A short-range wireless antenna (antenna) 50 and an antenna moving unit (antenna moving means) 51 for short-range wireless communication with the wireless device 3 are provided. In addition to the antenna 5, the portable wireless device 3 includes a short-range wireless antenna 7.

  The short-range wireless antenna 50 performs short-range wireless communication with the short-range wireless antenna 7 included in the portable wireless device 3, and is a known short-range wireless communication standard (for example, FeliCa (registered trademark), ISO / An antenna conforming to NFC standards including IEC14443 and the like may be used. In addition, a short-range wireless device 102 and a wireless circuit (not shown) for performing short-range wireless communication via the short-range wireless antenna 50 are provided.

  Similarly to the position detection unit moving unit 21, the antenna moving unit 51 may be any unit that moves the short-range wireless antenna 50 in accordance with control from the control unit 30.

  For example, as shown in FIG. 9, the short-range wireless antenna 50 can be disposed closer to the placement unit 10 than the position detection unit 20. Thereby, it can avoid suitably that the movement of the short distance radio | wireless antenna 50 and the movement of the position detection part 20 collide. However, the arrangement of the short-range wireless antenna 50 is not limited to this. For example, if the position detection unit 20 moves in the horizontal direction, the short-range wireless antenna 50 is more than the placement unit 10 than the position detection unit 20. It is possible to avoid collision between the movement of the short-range wireless antenna 50 and the movement of the position detection unit 20 even if they are arranged on the opposite side.

  Next, the operation of the control unit 30 will be described. Note that the transmission and reception of control signals between the control unit 30 and the position detection unit 20 and the position detection unit moving unit 21 are the same as those described in the mounting table 100, and thus the description thereof is omitted.

  As shown in FIG. 10A, in one example, when the control unit 30 receives a control signal C4 indicating the position of the portable wireless device 3 from the position detection unit 20, the control unit 30 sends a control signal C9 to the antenna moving unit 51. The short-range wireless antenna 50 is brought close to the short-range wireless antenna 7. Thereby, near field communication can be suitably performed between the portable wireless devices 3. Further, the control unit 30 moves the position detection unit 20 away from the mounting unit 10 after the detection of the position of the portable wireless device 3 by the position detection unit 20 is completed, similarly to the control in the mounting table 100. Deterioration of antenna characteristics of the antenna 5 can be suppressed.

  This will be described with reference to the flowchart shown in FIG. 11A. First, when the portable wireless device 1 is placed on the placement unit 10 (step S31), the position detection unit 20 is changed to the portable wireless device. 3 is detected (step S32), and control signals C2 and C4 are sent to the control unit 30. And the control part 30 which received control signals C2 and C4 sends the control signal C5 to the position detection part moving part 21, and the position detection part movement part 21 moves the position detection part 20 based on the control signal C5 ( Step S33). In parallel, the control unit 30 sends a control signal C9 to the antenna moving unit 51 so that the antenna moving unit 51 approaches the short-range wireless antenna 50 to the short-range wireless antenna 7 based on the control signal C9. Move (step S33). Then, short-range wireless communication is performed between the short-range wireless antenna 50 and the short-range wireless antenna 7 (step S34).

  As described above, after the position detection unit 20 detects the position of the portable wireless device 3, the control unit 30 moves the position detection unit 20 away from the placement unit 10, and based on the position detected by the position detection unit 20. By bringing the short-range wireless antenna 50 close to the short-range wireless antenna 7, the short-range wireless device 102 can efficiently perform short-range wireless communication while suppressing deterioration of the antenna characteristics of the antenna 5.

  Further, the control unit 30 may be configured to detect the position of the portable wireless device 3 again when the portable wireless device 3 is displaced (displacement) during the short-range wireless communication. In this case, as shown in FIG. 10B, the short-range wireless device 102 may include a reception level detection unit (displacement detection unit) 52 for detecting the displacement of the portable wireless device 3.

  During the short-range wireless communication, the reception level detection unit 52 sends a control signal C10 indicating the reception level at the short-range wireless antenna 50 to the control unit 30. Since the change in the reception level serves as an index of the displacement of the portable wireless device 3, the control unit 30 can detect the displacement of the portable wireless device 3 based on the control signal C10.

  And the control part 30 will transmit the control signal C11 which instruct | indicates that the position detection part 20 is made to approach the mounting part 10 to the position detection part movement part 21, if the displacement of the portable radio | wireless machine 3 is detected. In response to the control signal C <b> 11, the position detection unit moving unit 21 causes the position detection unit 20 to approach the placement unit 10. Then, the position detection unit 20 first determines whether or not the portable wireless device 3 is placed on the placement unit 10. If the portable wireless device 3 is placed on the placement unit 10, the position of the portable wireless device 3 is detected, and control signals C 2 and C 4 are sent to the control unit 30. If the portable wireless device 3 is not placed on the placement unit 10, the next short-range wireless communication is prepared at the same position.

  This will be described with reference to the flowchart shown in FIG. 11B. First, when the portable wireless device 1 is placed on the placement unit 10 (step S41), the position detection unit 20 is changed to the portable wireless device. 3 is detected (step S42), and control signals C2 and C4 are sent to the control unit 30. And the control part 30 which received control signals C2 and C4 sends the control signal C5 to the position detection part moving part 21, and the position detection part movement part 21 moves the position detection part 20 based on the control signal C5 ( Step S43). In parallel, the control unit 30 sends a control signal C9 to the antenna moving unit 51 so that the antenna moving unit 51 approaches the short-range wireless antenna 50 to the short-range wireless antenna 7 based on the control signal C9. Move (step S43). Then, short-range wireless communication is performed between the short-range wireless antenna 50 and the short-range wireless antenna 7, and short-range wireless communication is executed (step S44).

  Then, the control unit 30 determines whether the short-range wireless communication is completed (step S45), and when the short-range wireless communication is not completed, the control unit 30 generates a control signal C10 from the reception level detection unit 52. Based on this, the displacement of the portable wireless device 3 is determined (step S46). If there is no position shift, the process returns to step S44 and the short-range wireless communication is continued. On the other hand, when there is a position shift, the control unit 30 sends a control signal C11 to the position detection unit moving unit 21, and the position detection unit moving unit 21 converts the position detection unit 20 into the placement unit 10 based on the control signal C11. (Step S47).

  Subsequently, the position detection unit 20 determines whether or not the portable wireless device 3 is placed on the placement unit 10 (step S48). If the portable wireless device 3 is placed on the placement unit 10, the process returns to step S <b> 42, and the position detection unit 20 detects the position of the portable wireless device 3. If the portable wireless device 3 is not placed on the placement unit 10, the position detection unit 20 is made to stand by at the same position.

  As described above, when the position shift of the portable wireless device 3 is detected during the short-range wireless communication, the position information is updated by causing the position detection unit 20 to approach the placement unit 10 to perform position detection. Thus, even if the mobile wireless device 3 is displaced, short-range wireless communication can be suitably performed.

(Program and recording medium)
Finally, the control unit 30 may be realized in hardware by a logic circuit formed on an integrated circuit (IC chip), or may be realized in software using a CPU (Central Processing Unit). .

  In the latter case, the control unit 30 includes a CPU that executes instructions of a program that realizes each function, a ROM (Read Only Memory) that stores the program, a RAM (Random Access Memory) that expands the program, the program, and various types of programs. A storage device (recording medium) such as a memory for storing data is provided. An object of the present invention is to provide a recording medium on which a program code (execution format program, intermediate code program, source program) of a control program of the control unit 30 which is software that realizes the above-described functions is recorded in a computer-readable manner, This can also be achieved by supplying to the control unit 30 and reading and executing the program code recorded on the recording medium by the computer (or CPU or MPU).

  Examples of the recording medium include tapes such as magnetic tapes and cassette tapes, magnetic disks such as floppy (registered trademark) disks / hard disks, and disks including optical disks such as CD-ROM / MO / MD / DVD / CD-R. IC cards (including memory cards) / optical cards, semiconductor memories such as mask ROM / EPROM / EEPROM / flash ROM, PLD (Programmable logic device), FPGA (Field Programmable Gate Array), etc. Logic circuits can be used.

  The control unit 30 may be configured to be connectable to a communication network, and the program code may be supplied via the communication network. The communication network is not particularly limited as long as it can transmit the program code. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication network, and the like can be used. The transmission medium constituting the communication network may be any medium that can transmit the program code, and is not limited to a specific configuration or type. For example, even with wired lines such as IEEE 1394, USB, power line carrier, cable TV line, telephone line, ADSL (Asymmetric Digital Subscriber Line) line, infrared rays such as IrDA and remote control, Bluetooth (registered trademark), IEEE 802.11 wireless, HDR ( It can also be used by radio such as High Data Rate (NFC), Near Field Communication (NFC), Digital Living Network Alliance (DLNA), mobile phone network, satellite line, and digital terrestrial network.

  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.

  The present invention can be used in the field of manufacturing peripheral devices for portable wireless devices.

1, 2, 3 Portable wireless device 5 Antenna 6 Charging coil 7 Charging antenna 7 Short-range wireless antenna 10 Placement unit 20 Position detection unit 21 Position detection unit moving unit (moving means)
30 Control unit (control means)
40 Charging power transmission coil (power transmission unit)
41 Power transmission coil moving part (power transmission part moving means)
42 Binding amount detection unit (displacement detection means)
50 Short-range wireless antenna (antenna)
51 Antenna moving part (antenna moving means)
52 Reception level detector (displacement detector)
DESCRIPTION OF SYMBOLS 100 Mounting stand 101 Charging stand 102 Short-range radio | wireless apparatus C1-C11 signal

Claims (7)

A placement unit for placing the portable wireless device;
A position detection unit for detecting the position of the portable wireless device mounted on the mounting unit;
Moving means for moving at least one of the position detection unit and the portable wireless device in a direction in which the position detection unit and the portable wireless device are in contact with each other;
A power transmission unit for performing non-contact power transmission to the portable wireless device;
A charging base comprising: a power transmission unit moving means for causing the power transmission unit to approach the portable radio device based on the position after the position detection unit detects the position of the portable radio device. . A control unit is provided for controlling the moving unit so that the position detection unit and the portable wireless device are separated from each other after the position detection unit detects the position of the portable wireless device. Item 2. The charging stand according to Item 1. A placement unit for placing the portable wireless device;
A position detection unit for detecting the position of the portable wireless device mounted on the mounting unit;
Moving means for moving at least one of the position detection unit and the portable wireless device in a direction in which the position detection unit and the portable wireless device are in contact with each other;
Control means for controlling the moving means so that the position detecting unit and the portable wireless device are separated from each other after the position detecting unit detects the position of the portable wireless device;
In a state in which the control means has moved away and the position detection unit and the portable wireless device, e Bei and displacement detection means for detecting a displacement of the mobile radio,
The control means, when the displacement detecting means detects the displacement of the portable wireless device, such that the position detection unit and the portable radio is closer, placing you and controls the moving means Stand. A position detection method for detecting the position of a portable wireless device mounted on a charging stand having a position detection unit,
A position detecting step in which the position detecting unit detects the position of the portable wireless device;
After the position detection step, at least one of the position detection unit and the portable wireless device is moved so that the position detection unit and the portable wireless device are separated from each other, and the portable device detected in the position detection step A position detection method comprising: moving a power transmission unit for performing non-contact power transmission to the portable wireless device closer to the portable wireless device based on the position of the wireless device . A placement unit for placing the portable wireless device;
A position detection unit for detecting the position of the portable wireless device mounted on the mounting unit;
Moving means for moving at least one of the position detection unit and the portable wireless device in a direction in which the position detection unit and the portable wireless device are in contact with each other;
A short-range wireless antenna for the proximity wireless communication with the portable radio,
After the position detection unit detects the position of the portable wireless device, based on the position of the portable wireless device the position detection unit detects an antenna moving means to approach the near-distance radio antenna to the portable radio , short-range wireless device, characterized in that it comprises a. A control unit is provided for controlling the moving unit so that the position detection unit and the portable wireless device are separated from each other after the position detection unit detects the position of the portable wireless device. Item 6. The short-range wireless device according to Item 5 . A position detection method for detecting a position of a portable wireless device mounted on a short-range wireless device including a position detection unit,
A position detecting step in which the position detecting unit detects the position of the portable wireless device;
After the position detection step, at least one of the position detection unit and the portable wireless device is moved so that the position detection unit and the portable wireless device are separated from each other, and the portable device detected in the position detection step A position detecting method including a step of moving a short-range wireless antenna for performing close proximity wireless communication with the portable wireless device closer to the portable wireless device based on the position of the wireless device Method.

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