JP2014064375A - Terminal placing stand and terminal position detection method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a terminal placing stand of a new structure which places a terminal device.SOLUTION: A charge stand (11) as a placing stand has a position detection section (101) which detects the position of a wireless device (21) placed on a placement section (11a) for placing the wireless device (21). The position detection section (101) is installed so as to be smaller than the placement surface (position detection area) of the placement section (11a) for placing the wireless device (21) and movable within the placement section (11a).

Description

  The present invention relates to a terminal mounting table and a position detection method, and in particular, a terminal mounting table on which a portable wireless device is mounted, and a position detection method for a portable wireless device mounted on the terminal mounting table. It is about.

  2. Description of the Related Art In recent years, portable wireless terminal mounting bases for various purposes such as a charging base for mobile phone terminals and a reader for reading a FeliCa (registered trademark) chip mounted on a mobile phone terminal have been developed. For example, a technique for charging a portable wireless device mounted on a terminal mounting table, a so-called non-contact charging technique (for example, Patent Document 1) has been developed.

JP 2010-263663 A (released on November 18, 2010)

  By the way, it is effective for the technical field to provide a terminal mounting table having a new structure with respect to a terminal mounting table of a portable radio device for various purposes.

  An object of the present invention is to provide a terminal mounting table having a new structure with respect to a terminal mounting table of a portable wireless device for various purposes.

  The inventors of the present application have found a terminal mounting table having the following configuration as a result of intensive studies on a terminal mounting table having a new structure with respect to the terminal mounting table on which the terminal device is mounted.

The terminal mounting table according to one aspect of the present invention is as follows.
A placement unit for placing the terminal device;
A position detection unit for detecting the position of the terminal device placed on the placement unit,
The position detection unit is smaller than the placement surface of the placement unit on which the terminal device is placed, and is provided so as to be movable within the placement unit.

The position detection method of the present invention includes:
A position detection unit that detects the position of the terminal device placed on the placement unit, wherein the position detection unit is smaller than the placement surface of the placement unit on which the terminal device is placed, and is within the placement unit A position detection method in a terminal mounting table that is movably provided at
A position detection step of detecting the position of the terminal device placed on the placement unit by a position detection unit;
A movement control step of moving the position detection unit within the placement unit until a result indicating that the position detection result of the position detection step has detected the position of the terminal device is obtained.

  According to one aspect of the present invention, a new structure capable of reliably detecting the position of the terminal device placed on the placement surface of the placement unit and reducing the influence on the terminal device. It is possible to provide a terminal mounting table.

It is a schematic block diagram of the charging stand according to the first embodiment of the present invention when viewed in plan. It is a schematic block diagram of the non-contact charging system provided with the charging stand shown in FIG. It is a flowchart which shows the flow of the position detection process of the radio | wireless machine in the charging stand shown in FIG. It is a schematic block diagram when the charging stand which concerns on Embodiment 2 of this invention is planarly viewed. It is a schematic block diagram when the charging stand which concerns on Embodiment 3 of this invention is planarly viewed. It is a schematic block diagram of the non-contact charging system provided with the charging stand shown in FIG. It is a flowchart which shows the flow of the position detection process of the radio | wireless machine in the charging stand shown in FIG. It is a schematic block diagram when the charging stand which concerns on Embodiment 4 of this invention is planarly viewed. It is a schematic block diagram of the non-contact charging system provided with the charging stand shown in FIG.

[Embodiment 1]
An embodiment of the present invention will be described as follows. In the present embodiment, a charging device is used as the terminal mounting table of the present invention, and a wireless device (terminal) with a built-in rechargeable battery that is charged by non-contact power transmission as a terminal device mounted on the terminal mounting table. The example which comprised the non-contact charge system which performs non-contact electric power transmission using an apparatus is demonstrated. In the present embodiment and the following embodiments, the wireless device will be described assuming a mobile terminal device having a wireless communication function such as a smartphone or a mobile phone.

(Non-contact charging system) ... Fig. 2
FIG. 2 is a schematic block diagram of the contactless charging system according to the present embodiment.

  As shown in FIG. 2, the non-contact charging system includes a charging stand 11 and a radio device 21 placed on the placing portion 11 a of the charging stand 11.

  The placement unit 11a of the charging stand 11 is a part for placing the radio device 21, and is preferably a flat surface installed horizontally, for example.

(Charging stand 11)
As shown in FIG. 2, the charging stand 11 functions as a charger that places the wireless device 21 on the placing portion 11 a and performs non-contact charging, and includes a position detection unit 101 and a position determination unit 102. And a charging control unit 103 and a movable table control unit 104.

  The position detection unit 101 includes a primary coil 101a and a primary coil 101a as position detection means for detecting the position of the wireless device 21 placed on the placement unit 11a. The movable table 101b. Specifically, the position detection unit 101 detects the position of the wireless device 21 by detecting the secondary coil 201 of the wireless device 21 using the primary coil 101a.

  The primary coil 101a serves as both a position detection coil and a power transmission coil. Therefore, the primary side coil 101 a is connected to the position determination unit 102 and the charging control unit 103. That is, when the primary coil 101 a functions as a position detection coil, the primary coil 101 a sends a detection signal when the position of the wireless device 21 is detected to the position determination unit 102. Further, when the primary side coil 101 a functions as a power transmission coil, the primary side coil 101 a serves as a power transmission unit that wirelessly transmits power from the charge control unit 103 to the radio device 21.

  Here, the primary side of the primary side coil 101a means the side to be charged, and the secondary side of the secondary side coil 201 described later means the side to be charged.

  Therefore, the position detection unit 101 detects the amount of electromagnetic coupling between the primary side coil 101a and the secondary side coil 201 of the radio device 21, and is a position determination unit connected to the primary side coil 101a. A detection signal is sent to 102.

  The position discriminating unit 102 discriminates the position of the wireless device 21 from the detection signal (electromagnetic coupling amount) from the primary coil 101a, and sends a discrimination signal indicating the discrimination result to the charging control unit 103 and the movable base control unit 104. Send to. Here, a threshold value is provided for the induced current flowing through the primary side coil 101a, and it is determined that the secondary side coil 201 of the wireless device 21 is detected when the threshold value is equal to or greater than the threshold value. Send to.

  The charging control unit 103 supplies power to the primary coil 101a when receiving a determination signal from the position determination unit 102, that is, a signal indicating that the position of the wireless device 21 has been detected. It has become. The primary side coil 101 a supplied with power transmits power to the secondary side coil 201 of the wireless device 21 in a non-contact manner and charges the secondary side battery 202 connected to the secondary side coil 201.

  The movable table control unit 104 is configured to move the movable table 101b based on a determination signal from the position determination unit 102.

  Here, the movable base 101b includes a primary side coil 101a inside, and is formed to be movable within the position detection region of the wireless device 21 in the charging base 11. Therefore, the movable base 101b continues to move until the position of the wireless device 21 placed on the placement portion 11a of the charging base 11 is detected.

  FIG. 1 is a schematic block diagram when the charging stand 11 is viewed in plan.

  As shown in FIG. 1, the charging stand 11 shows the position detection area if the built-in position detection unit 101 sets the entire surface on which the wireless device 21 of the placement unit 11 a is placed as a position detection area. It is configured to move freely in the direction of the arrow. For example, the position detection unit 101 is moved in the X direction / Y direction by a motor (not shown) built in the charging stand 11.

  What is important here is that the position detection unit 101 is smaller than a position detection region equal to the entire surface of the mounting surface of the wireless device 21 in the placement unit 11a, and is movably provided over the position detection region. It is that you are.

(Radio device 21)
As shown in FIG. 2, the wireless device 21 includes a rechargeable battery including a secondary coil 201 and a secondary battery 202, and an antenna 203 which is one of the components for realizing a wireless communication function. It is out.

  The secondary coil 201 serves as both a position detection coil and a charging coil. Therefore, when the secondary coil 201 functions as a position detection coil, it forms a magnetic field with the primary coil 101a in the charging base 11. Further, when the secondary coil 201 functions as a charging coil, the secondary coil 202 receives power transmitted from the primary coil 101a of the charging stand 11 and charges the secondary battery 202. .

  The antenna 203 is a member necessary for realizing a wireless communication function. If the wireless device 21 is, for example, a mobile phone or a smartphone, the antenna 203 functions as an antenna for performing wireless communication with a base station or an access point.

(Position Detection Processing)... Flowchart of FIG. 3 FIG. 3 is a flowchart showing a flow of position detection processing of the wireless device 21 in the charging stand 11 having the above-described configuration.

  First, it is determined whether or not the position detection unit 101 has detected the presence or absence of the wireless device 21 (step S11). Here, the position determination unit 102 determines the presence or absence of the wireless device 21 based on the detection signal from the position detection unit 101. The determination result is sent to the charging control unit 103 and the movable table control unit 104.

  In step S11, if the wireless device 21 is detected, that is, if the wireless device 21 is present, the process proceeds to step S12, and the position detection unit 101 outputs "presence / absence of the wireless device 21" and "position detection unit 101 position". To do. Here, information (detection signal) indicating “presence / absence of wireless device 21” and “position of position detection unit 101” is transmitted from position detection unit 101 to position determination unit 102.

  In the present embodiment, among the information indicating “presence / absence of wireless device 21” and “position of position detection unit 101”, only the information of “presence / absence of wireless device 21” is used, and “position of position detection unit 101” is used. "Is not used. This “position of the position detection unit 101” is used in position detection processing (position detection of the wireless device 21 in two steps) described later.

  On the other hand, if the wireless device 21 is not detected in step S11, that is, if there is no wireless device 21, the process proceeds to step S13 and the position detection unit 101 is moved. Here, the position determination result (result without wireless device 21) is sent from the position determination unit 102 to the movable table control unit 104, and the movable table control unit 104 moves the movable table 101b. In this case, the position detector 101 is moved by moving the movable base 101b along a preset movement locus.

  Thereafter, in step S11 again, detection of the wireless device 21 is determined, and the above-described processing is executed.

  According to the non-contact charging system using the charging stand 11 having the above configuration, the position detection for detecting the position of the secondary battery 202 (rechargeable battery) of the wireless device 21 placed on the placing portion 11a of the charging stand 11. Since the portion 101 is smaller than the size of the position detection region in the placement portion 11a and is movably provided over the position detection region, the position detection portion 101 is positioned at the position of the placement portion 11a. The position of the radio device 21 placed in the detection area can be reliably detected.

  Thereby, if the radio device 21 is placed on the placement unit 11 a, the charging control unit 103 can reliably perform non-contact power transmission to the secondary battery 202 built in the radio device 21. Therefore, non-contact charging can be performed reliably.

  Further, in the charging stand 11, the secondary side battery 202 of the radio device 21 is used in the mounting portion 11 a by using the primary side coil 101 a that serves both as a position detection coil and a power transmission coil. At the same time, the contactless power transmission to the secondary battery 202 can be performed.

  In addition, since the position detection coil and the power transmission coil are also used, it is possible to eliminate the space of the placement unit 11a where the charge control unit 103 (power transmission unit) is provided. 11a can be reduced in size.

  According to the above configuration, since the position detection unit 101 that detects the position of the wireless device 21 placed on the placement unit 11a is smaller than the size of the position detection area in the placement unit 11a, the position detection unit 101, Since it is possible to make it difficult to overlap the antenna 203 for realizing the wireless communication function of the wireless device 21 placed on the placement unit 11a, it is possible to suppress deterioration of antenna characteristics caused by the position detection unit 101. .

  In the present embodiment, in the charging stand 11 having the above-described configuration, an example in which the primary coil 101a in the position detection unit 101 is used both as a position detection coil and a charging coil has been described. Also good.

  In the following second, third, and fourth embodiments, an example of a charging stand in which a position detecting unit and a charging coil (primary coil) are separately provided will be described.

[Embodiment 2]
(Other charging stand) ··· Fig. 4 (position detection means is a separate member)
FIG. 4 is a schematic block diagram of the charging stand 12 according to the present embodiment when viewed in plan.

  As shown in FIG. 4, the charging stand 12 includes a position detection unit 111 including a primary coil 111a, a movable stand 111b, and first position detection means 111c.

  The primary coil 111a and the charging stand 111b are movable in a position detection area corresponding to almost the entire mounting surface of the mounting portion 12a of the charging stand 12, similar to the position detecting portion 101 of the first embodiment. Is provided.

  Further, the first position detecting means 111c includes a plurality of first rectangular coils parallel to each other and a plurality of second rectangular coils parallel to each other orthogonal to the rectangular coils so that the distance between the coils is close. It has a matrix coil structure arranged in a matrix. Each rectangular coil is connected to the position detection unit 101, and can detect a coupling state between each rectangular coil and the secondary coil 201 of the wireless device 21. Thereby, the 1st position detection means 111c detects the position (position of the secondary side coil 201) of the radio | wireless machine 21. FIG.

  The primary coil 111a moves relative to the first position detector 111c. This is for alignment with the secondary side coil 201 of the radio device 21.

  Here, the first position detecting means 111c is provided so as to be smaller than the size of the position detection area in the placement portion 12a and to be movable over the position detection area. As a result, the same effects as those of the first embodiment are obtained.

  In the present embodiment, since the first position detection unit 111c is formed smaller than the size of the position detection region in the mounting portion 12a of the charging stand 12, depending on the place where the wireless device 21 is placed, the wireless device 21 cannot be detected immediately, and there is a possibility that it takes time to detect.

  Therefore, in the following third embodiment, an example will be described in which two position detection units are provided to detect the position of the wireless device 21 in two stages in order to reduce the time until the position of the wireless device 21 is detected. That is, the position of the wireless device 21 is roughly detected in the first stage, and the position of the wireless device 21 is detected in detail in the second stage.

[Embodiment 3]
(Other charging stand) ··· Fig. 5 and Fig. 6 (two position detecting means)
FIG. 5 is a schematic block diagram of the charging stand 13 according to the present embodiment when viewed in plan.

  FIG. 6 is a block diagram showing an outline of the non-contact charging system in which the wireless device 21 is mounted on the charging stand 13 shown in FIG.

  In addition to the structure of the charging stand 12 of the second embodiment, the charging stand 13 according to the present embodiment is formed over almost the entire position detection region of the mounting portion 13a as shown in FIG. A second position detection unit 111d, which is a second position detection unit, is provided.

  The first position detection unit 111c is mounted on the movable table 111b and moves with the movement of the movable table 111b.

  The second position detection unit 111d has the same basic configuration as the first position detection unit 111c, but the interval between the rectangular coils constituting the first position detection unit 111c is a rectangular coil constituting the first position detection unit 111c. It differs in that it is wider than the interval.

  The second position detection unit 111d cannot detect the detailed position of the radio device 21 because the interval between the rectangular coils is wide, but the radio wire 21 is sparse because the metal wiring constituting the rectangular coil is sparse. The influence on the antenna characteristics of the antenna 203 is small.

  As shown in FIG. 6, the first position detection unit 111 c and the second position detection unit 111 d are respectively connected to the position determination unit 102 and send detection signals to the position determination unit 102.

  The position determination unit 102 sends the determination result to the charge control unit 103 and the movable table control unit 104.

(Position detection processing when there are two position detection means)...
FIG. 7 is a flowchart showing the flow of position detection processing using the two position detection means shown in FIG.

  When the detection process is started (step S21), the second position detector 111d detects the approximate position of the wireless device 21 (step S22). Here, the position determination unit 102 receives a detection signal from the second position detection unit 111d.

  Next, it is determined whether or not the position of the wireless device 21 has been detected (step S23). Here, the position determination unit 102 determines whether or not the position of the wireless device 21 is detected from the received detection signal, and sends the determination result to the movable table control unit 104. The determination result in this case includes position information indicating an approximate position of the wireless device 21.

  If it is not determined in step S23 that the position of the wireless device 21 has been detected, the process proceeds to step S22, and the second position detection unit 111d detects the approximate position of the wireless device 21 again.

  On the other hand, when it determines with the position of the radio | wireless machine 21 having been detected in step S23 (Yes), the charging stand 111b is moved (step S24). Here, the movable stand control unit 104 moves the charging stand 111b based on the position information indicating the approximate position of the wireless device 21 included in the determination result from the position determination unit 102.

  Subsequently, the detailed position of the secondary coil 201 is detected by the first position detector 111c (step S25).

  Thereafter, it is determined whether or not the secondary coil 201 has been detected (step S26). Here, if not determined, the process proceeds to step S24, and the movable base 111b is moved again. If it is determined, the process proceeds to step S27 to finely adjust the position of the primary coil 111a. Here, fine adjustment of the primary side coil 111a is performed by the following two methods. However, the present invention is not limited to the following two types, and the primary side coil 111a may be finely adjusted by other methods.

  The first method assumes a case where the primary coil 111a is completely fixed to the movable base 111b. In this case, the position of the primary side coil 111a is finely adjusted to the position of the secondary side coil 201 by moving the movable base 111b.

  In the second method, the primary side coil 111a is fixed to the movable base 111b. However, the fixed part of the primary side coil 111a is attached to the charging base 111b, and the primary side coil 111a itself has a certain amount of “play”. Assume a certain case.

  In this case, after the Yes determination is made in step S26, the movable base 111b is not moved, and only the primary side coil 111a is moved slightly in the movable base 111b, and the position of the primary side coil 111a is changed to the secondary side coil. The position of 201 is finely adjusted. At this time, the width in which the primary coil 111a moves in 1 step is set to be smaller than the width in which the movable base 111b moves in 1 step.

  Finally, charging of the wireless device 21 by the charging stand 13 is started (step S28).

  As described above, if the wireless device 21 is detected in two stages, the accurate position of the wireless device 21 can be detected in a short time. Thereby, there exists an effect that the charge to the radio | wireless machine 21 can be performed quickly and reliably.

  That is, the second position detection unit 111d has a lower position detection accuracy than the first position detection unit 111c, but is roughly located in the position detection area of the mounting portion 13a, and thus roughly detects the position of the radio device 21. can do. In this state, the first position detection unit 111c detects the position of the wireless device 21 from the position detected by the second position detection unit 111d, so that the placement unit Since it is not necessary to scan the entire position detection area 13a, the position detection time of the wireless device 21 can be shortened.

  In the first to third embodiments, the electromagnetic induction method is used as the position detection method of the wireless device 21, but the position detection method of the wireless device 21 is not limited to this electromagnetic induction method. Various methods such as a magnetic field detection method and a light detection method can be employed.

  In the following fourth embodiment, an example in which a magnetic field detection method is employed as a position detection method of the radio device 21 will be described.

[Embodiment 4]
(Other charging stand) ··· Fig. 8 and Fig. 9 (position detecting means is a magnet)
FIG. 8 is a schematic block diagram of the charging stand 14 according to the present embodiment when viewed in plan.

  FIG. 9 is a block diagram showing an outline of the non-contact charging system in which the wireless device 22 is mounted on the charging stand 14 shown in FIG.

  As shown in FIG. 8, the charging stand 14 includes a primary side coil 121a, a movable base 121b, and a position detection unit 121c provided with a position detection unit 121c in a placement part 14a for placing the radio device 22. Is included.

  The position detection unit 121 is provided so as to be movable in the placement unit 14a. In this respect, the configuration is the same as the charging stand 12 of the second embodiment. However, the configuration of the position detection unit 121c is different from the configuration of the first position detection unit 111c of the charging stand 12.

  The position detection means 121c is not a matrix coil, but is composed of magnets arranged at the four corners in the movable table 121b.

  In addition to the secondary coil 201, the secondary battery 202, and the antenna 203, the radio unit 22 is also provided with a magnet 204 so as to correspond to the magnet of the charging base 14, as shown in FIG. ing.

  Since the magnets constituting the position detection means 121c of the charging base 14 and the magnets 204 of the radio equipment 22 are arranged so as to face each other with opposite polarities, the radio equipment 22 is close to the position detection means 121c of the charging base 14 Then, it acts to attract each other. At this time, the strength of the magnetic field formed between the two magnets is detected by the position determination unit 102 connected to the position detection means 121c, and the presence or absence of the radio device 22 is determined from the detected strength of the magnetic field.

  Note that the magnetic field type position detection method is not limited to the above-described method, and may be the following method.

  For example, the strength of the magnetic field is not treated as a clear signal, but the movable base is moved so that the entire mounting surface is scanned, and the movable base becomes difficult to move when the magnets touch each other (the resistance increases). A method of determining that there is a terminal when the amount of mutation exceeds a threshold value may be used.

  As described above, the charging stand 14 according to the present embodiment can detect the position of the wireless device 21 physically and more reliably by using the magnet for position detection.

(effect)
By the way, in a general non-contact charging system, a position detecting means (matrix coil) is arranged on almost the entire surface of the charging stand near the portable wireless device installation surface, and when the portable wireless device is installed, The charging coil position of the portable wireless device is detected from the degree of coupling of the position detection means, and the charging coil on the charging stand side is moved to that position.

  Usually, the position detection means (matrix coil) built in the charging stand for contactless charging is made of a metallic material. And in order to detect a position accurately, it is necessary to arrange | position metal wiring (matrix coil) densely. In this way, when the metal wiring is dense (an image that makes the wire mesh finer), even if it is not a metal plate, it looks equivalent to the metal plate when viewed from a high frequency signal. Means that the metal plate and the antenna are close to each other, and the antenna characteristics deteriorate.

  However, in the charging bases 11 to 14 described in the above embodiments, the size of the position detection unit itself for detecting the positions of the radio devices 21 and 22 is larger than the position detection area in the mounting base of the charging base. Since the proximity of the antenna and the position detection unit (= metal) can be suppressed by reducing the size and allowing movement within the position detection region, it is possible to suppress deterioration of the antenna characteristics.

  As described above, in the present embodiment, as described above, as the wireless device 21 and the wireless device 22, a mobile terminal having a wireless communication function such as a smartphone or a mobile phone in consideration of deterioration of antenna characteristics due to the position detection unit. Although the description has been made on the assumption that the device is used, the present invention can be applied to a terminal device having no wireless communication function by using the charging stand of the present invention.

  For example, the charging stand of the present invention can be used for a terminal that performs non-contact charging, for example, a portable game machine that does not have a wireless communication function or a device such as a rechargeable shaver.

  Examples of terminals that perform non-contact charging include terminal devices having wireless communication functions such as smartphones and mobile phones, such as rechargeable cordless phones (slave devices) and remote controllers.

  In the first to fourth embodiments described above, the case where the electromagnetic induction method and the magnetic field detection method are used as specific methods for detecting the position of the terminal device has been described. However, the present invention is not limited to these methods. The effect of the present invention does not change even with other methods such as a light detection method.

  The light detection method is a method in which it is possible to determine that there is a handset if light is emitted from the charging stand and reflected by the terminal device.

[Near field communication]
The mounting table of the present invention is suitable for a charging table used for non-contact charging of a portable wireless communication terminal such as a mobile phone or a smartphone as described in the above embodiments, but is not limited to a charging table. It can also be applied as a short-range wireless device (for example, a FeliCa (registered trademark) reader) that performs short-range wireless communication with a portable wireless device (IC chip).

  In this case, if the reader is a mounting table (charging table 11 shown in FIG. 2), it becomes a short-range communication antenna for communicating the primary side coil 101a1 in the position detection unit 101 of the charging table 11 with the IC chip.

  According to such a short-range wireless device to which the present invention is applied, the position of the terminal device (IC chip) can be reliably detected in the same manner as the charging stand described in each of the above embodiments. It is possible to reliably perform the communication.

[Summary]
A terminal mounting table (charging table 11) according to one aspect of the present invention is mounted on a mounting unit 11a that mounts a terminal device including a rechargeable battery that can be charged by non-contact power transmission, and the mounting unit 11a. A position detection unit 111 that detects the position of the placed terminal device (radio device 21), and the position detection unit 111 is a placement surface (position of the upper placement device 11a) of the upper terminal device (wireless device 21) It is smaller than the detection area) and is movably provided in the mounting portion 11a.

  The position detection method in the terminal mounting base (charging base 11) according to an aspect of the present invention includes the position detecting unit 111 that detects the position of the terminal device (wireless device 21) mounted on the mounting part 11a. A terminal mounting table (charging table) in which the position detecting unit 111 is smaller than the mounting surface of the mounting unit 11a on which the terminal device (wireless device 21) is mounted and is movable in the mounting unit 11a. 11) A position detection method in which the position of the terminal device (wireless device 21) placed on the placement unit 11a is detected by the position detection unit 111, and position detection by the position detection step. And a movement control step of moving the position detection unit 111 in the placement unit 11a until the result indicates that the position of the terminal device has been detected.

  According to said structure, the position detection part 111 which detects the position of the rechargeable battery (secondary battery 202) of the terminal device (radio | wireless device 21) mounted in the mounting part 11a in the said mounting part 11a. Since the position detection unit 111 is smaller than the position detection region and is provided so as to be movable over the position detection region, the position detection unit 111 is a terminal device (wireless) mounted in the position detection region of the mounting unit 11a. The position of the machine 21) can be reliably detected.

  That is, the position of the terminal device (radio device 21) placed on the placement surface of the placement unit 11a can be reliably detected, and the influence on the terminal device (wireless device 21) can be reduced. There is an effect that it is possible to provide a terminal mounting table (charging table 11) having a possible new structure.

The position detection unit 101 includes a position detection metal coil (primary coil 101a),
Position determination that is electrically connected to the metal coil (primary coil 101a), receives an electric signal from the metal coil (primary coil 101a), and determines the position of the terminal device (radio device 21). It is preferable to further include a unit 102 and a movement control unit (movable table control unit 104) that controls the movement of the position detection unit 101 according to the determination result by the position determination unit 102.

  According to the above configuration, the position determination unit 102 is electrically connected to the position detection metal coil (primary side coil 101a) included in the position detection unit 101, and the metal coil (primary side coil) is connected. 101a) receives the electric signal, determines the position of the terminal device (radio 21), and the movement control unit (movable table control unit 104) moves the position detection unit 101 according to the determination result. Is controlled, the position detection unit 101 moves to the position of the terminal device (radio device 21). That is, when the determination result indicates that the position of the terminal device (wireless device 21) has been detected, the position detection unit 101 has already detected the position of the terminal device (wireless device 21). If the position detection unit 101 is not moved and the determination result indicates that the position of the terminal device (radio device 21) is not detected, the position detection unit 101 determines the position of the terminal device (wireless device 21). Since it is not detected, the position detection unit 101 is moved.

  As described above, the position detection unit 101 is moved in accordance with the determination result by the position determination unit 102 to be arranged at the position of the terminal device (wireless device 21) mounted on the mounting unit 11a of the charging stand 11. Therefore, the terminal device (radio device 21) can be reliably charged.

  When the position detection unit 101 is the first position detection unit (first position detection unit 111c), the terminal device is placed on the entire surface of the placement unit 13a and placed on the placement surface. A second position detection unit (second position detection unit 111d) that detects the position of (wireless device 21) with position detection accuracy lower than the position detection accuracy of the first position detection unit (first position detection unit 111c). The first position detecting unit (first position detecting unit 111c) is provided based on the position of the terminal device (radio device 21) detected by the second position detecting unit (second position detecting unit 111d). It is characterized by detecting the position of the device (radio device 21).

  According to the above configuration, the second position detection unit (second position detection unit 111d) has lower position detection accuracy than the first position detection unit (first position detection unit 111c), but the position of the mounting unit 13a. Since it is arranged on the entire detection area, the position of the terminal device (radio device 21) can be roughly detected. In this state, the first position detection unit (first position detection unit 111c) detects the terminal device (radio device 21) from the position detected by the second position detection unit (second position detection unit 111d). The position of the terminal device (radio device 21) is not detected by the first position detecting unit (first position detecting unit 111c) by detecting the position of the position of the mounting unit 13a. The detection time can be shortened.

  A power transmission unit (primary coil 111a) for performing non-contact power transmission to the rechargeable battery (secondary battery 202) of the terminal device (wireless device 21) whose position is detected by the position detection unit 111; The metal coil (101a) of the position detection unit 111 preferably serves as both a position detection coil and a power transmission coil in the power transmission unit.

  According to the above configuration, the position detection coil and the power transmission coil are combined, so that the position of the rechargeable battery (secondary battery 202) of the terminal device (radio device 21) in the placement unit 11a. At the same time, non-contact power transmission can be performed on the rechargeable battery (secondary battery 202).

  In addition, since the position detection coil and the power transmission coil are also used, the space of the mounting portion 11a where the power transmission unit (primary coil 111a) is provided can be eliminated. The part 11a can be reduced in size.

  It further includes a transmission / reception unit (antenna 203) for performing short-range communication with the terminal device (radio device 21) whose position is detected by the position detection unit 111, and a metal coil 111a (communication unit, communication) of the position detection unit 111. It is preferable that the antenna for use also serves as a coil for position detection and an antenna for near field communication in the transmission / reception unit.

  According to the above configuration, the position detection unit 111 that detects the position of the terminal device (radio device 21) placed on the placement unit 11a is smaller than the position detection region in the placement unit 11a. And the antenna 203 for realizing the wireless communication function of the terminal device (radio device 21) placed on the placement unit 11a can be made difficult to overlap, and the characteristics of the antenna 203 caused by the position detection unit 111 can be reduced. Deterioration can be suppressed.

  The terminal mounting table of the present invention can also be applied as a short-range wireless device (for example, a FeliCa (registered trademark) reader) that performs short-range wireless communication with a portable wireless device (IC chip).

  That is, the short-range wireless device is provided inside the mounting table, and a short-range communication antenna (primary side coil 101a, primary side coil 111a, 1) for performing close proximity wireless communication with the terminal device (IC chip). A secondary coil 121a) is provided.

  According to the short-range wireless device having the above-described configuration, the position of the terminal device (IC chip) can be reliably detected in the same manner as the charging stand described in each of the above embodiments, so that communication with the IC chip is reliably performed. There is an effect that can be.

  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.

[Example of software implementation]
Finally, the charging control unit 103 and the movable table control unit 104 of the charging bases 11 to 14 may be realized in hardware by a logic circuit formed on an integrated circuit (IC chip), or may be a CPU (Central Processing Unit). Unit) may be implemented in software.

  In the latter case, the charging stands 11 to 14 include 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, and the program And a storage device (recording medium) such as a memory for storing various data. An object of the present invention is a recording medium in which the program code (execution format program, intermediate code program, source program) of the control program for the charging bases 11 to 14, which is software for realizing the functions described above, is recorded so as to be readable by a computer Can also be achieved by reading the program code recorded on the recording medium and executing it by the computer (or CPU or MPU).

  Examples of the recording medium include non-transitory tangible medium, such as magnetic tape and cassette tape, magnetic disk such as floppy (registered trademark) disk / hard disk, and CD-ROM / MO. Discs including optical discs such as / MD / DVD / CD-R, cards such as IC cards (including memory cards) / optical cards, semiconductor memories such as mask ROM / EPROM / EEPROM (registered trademark) / flash ROM Alternatively, logic circuits such as PLD (Programmable Logic Device) and FPGA (Field Programmable Gate Array) can be used.

  Moreover, the charging stands 11-14 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 can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.

  The present invention can be used for all devices that perform non-contact charging.

11 Charging stand (terminal mounting stand)
11a Placement unit 12 Charging stand (terminal placement stand)
12a Placement unit 13 Charging stand (terminal placement stand)
13a Placement part 14 Charging stand (terminal placement stand)
14a Placement unit 21 Radio unit 22 Radio unit 101 Position detection unit 101a Primary coil 101b Movable table 102 Position determination unit 103 Charge control unit 104 Movable table control unit 111 Position detection unit 111a Primary coil 111b Movable table
111b Charging stand 111c 1st position detection means 111d 2nd position detection means 121 Position detection part 121a Primary side coil (communication part, antenna)
121b Movable stand 121c Position detection means 201 Secondary coil 202 Secondary battery 203 Antenna 204 Magnet

Claims (5)

A placement unit for placing the terminal device;
A position detection unit for detecting the position of the terminal device placed on the placement unit,
The terminal mounting table, wherein the position detecting unit is smaller than a mounting surface of the mounting unit on which the terminal device is mounted and is movably provided in the mounting unit. The position detection unit includes a metal coil for position detection,
A position determination unit that is electrically connected to the metal coil, receives an electric signal from the metal coil, and determines the position of the terminal device;
The terminal mounting table according to claim 1, further comprising a movement control unit that controls movement of the position detection unit according to a determination result by the position determination unit. When the position detection unit is a first position detection unit,
A first device that is disposed on the entire surface of the terminal device placement surface of the placement unit and detects the position of the terminal device placed on the placement surface with a position detection accuracy lower than the position detection accuracy of the first position detection unit. A two-position detector is provided,
The terminal mounting table according to claim 1, wherein the first position detecting unit detects the position of the terminal device from the position of the terminal device detected by the second position detecting unit. A communication unit for charging or wireless communication with the terminal device whose position is detected by the position detection unit;
The terminal mounting table according to any one of claims 1 to 3, wherein the metal coil of the position detection unit also serves as a position detection coil and an antenna in the communication unit. A position detection unit that detects the position of the terminal device placed on the placement unit, wherein the position detection unit is smaller than the placement surface of the placement unit on which the terminal device is placed, and is within the placement unit A position detection method in a terminal mounting table that is movably provided at
A position detection step of detecting the position of the terminal device placed on the placement unit by a position detection unit;
And a movement control step of moving the position detection unit in the placement unit until a result indicating that the position detection result of the position detection step has detected the position of the terminal device is obtained. .

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