JP2010114811A - Bed device for games - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for games, capable of reading a wireless IC chip tag at high speed within a narrow or large range on the board for the bed device. <P>SOLUTION: An antenna 21 energized from a transceiver 22 is connected with a matching circuit 81. Since impedance matching can be taken between it and the transceiver 22, another or a plurality of antennas 21 which are connected with the matching circuit 81 although not being energized from the transceiver 22 resonates with the antenna 21 energized from the transceiver 22 and which is connected with the matching circuit 81, thus reading wireless IC tags 72 of each game chip 71 of two or more bed parts 3 in which these two or more antennas 21 are formed at once. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a gaming betting device for a player to bet gaming chips in a game such as roulette.

  2. Description of the Related Art Conventionally, a table game betting board such as a roulette used in a casino or the like has a frame displayed on its upper surface and is divided into a plurality of regions (betting portions) by the frame. Then, a player places a chip on the upper surface and makes a bet. Thereafter, the information of the wireless IC tag of the chip bet on each betting portion is read.

  FIG. 12 is a plan view of a part of the upper surface 101 of the betting board. The upper surface 101 is provided with a plurality of betting portions 103 separated by a frame 102. The figure shows a part of the plurality of betting portions 103. In such a betting board, a wireless IC tag is provided on a betting chip, and information on the wireless IC tag of the betted chip is read as follows.

  That is, as shown in FIG. 13, a plurality of antennas (loop antennas) 104 for reading the wireless IC tag are provided on the betting board. Each antenna 104 is provided so as to correspond to each bet portion 103, and is arranged along the frame 102 that serves as a boundary between the bet portions 103. The antennas 104 from A1 to A6 in FIG. 13 correspond to the bet portions 103 in FIG.

  FIG. 14 shows an arrangement relationship between the chip 105 placed on the upper surface 101 and the antenna 104. In the example of the figure, the wireless IC tag of each chip 105 is read by the antenna 104 at the bet portions A1, A5 and A6, respectively. That is, a magnetic field is generated by the antenna 104, the wireless IC tag is electromotive by the magnetic field, and the wireless IC tag transmits information. This information can be read by the antenna 104 or an antenna different from the antenna 104. Usually, the chips 105 are stacked and placed on the upper surface 101, but the wireless IC tags of the plurality of chips 105 stacked at the same position can also be read by the single antenna 104. If the plurality of antennas 104 are sequentially switched to perform the reading operation of the wireless IC tag, the wireless IC tags of all the chips 105 placed on the betting board can be read.

As prior art related to this application, in Patent Documents 1 and 2, when radio waves are transmitted by the X-side transmitting antenna and the Y-side transmitting antenna, the radio waves are transmitted by a flux perpendicular to the table at the XY cross point. Is disclosed, and the ID of the wireless IC tag provided on the chip placed on the table on the cross point is read, and this reading is sequentially performed for each betting portion.
No. 2004-105321 No. 2004-102953

  In such a betting board, when the wireless IC tag of the chip 105 is read over a wide area composed of a plurality of bed parts 103, each antenna 104 is provided corresponding to each bet part 103. Is to sequentially drive the antennas 104 included in the range of the plurality of bed parts 103 and read the wireless IC tags of all the chips 105 within the range, It takes a long time to read the wireless IC tag of the chip 105.

  An object of the present invention is to enable a wireless IC tag of a chip to be read at a high speed within a narrow range or a wide range on a betting board.

  (1) The present invention provides a betting board, a plurality of antennas corresponding to the respective areas of the betting board, and an antenna for detecting gaming chips placed on the betting board; An energization circuit for energizing the antenna, a matching circuit for impedance matching between each antenna and the energization circuit, an energization from the energization circuit to the desired antenna via the matching circuit, and a desired among other antennas The antenna is provided with a control means for connecting the matching circuit and the antenna without energization from the energization circuit.

  (2) In this case, the control means short-circuits the antenna energized from the energization circuit and the antenna other than the antenna connected to the matching circuit without energization. May be.

  According to the invention of (1), since the antenna connected to the matching circuit without being energized from the energizing circuit resonates with the antenna energized from the energizing circuit, not only the energized antenna but also the energizing is not performed. The chip can be read even with an antenna connected to the matching circuit. Therefore, the chip can be read at high speed in a wide range corresponding to the plurality of antennas of the antenna connected to the matching circuit without being energized.

  According to the invention of (2), the antenna connected to the matching circuit without being energized and the antenna connected to the matching circuit without being energized can accurately read the chip but prevent the other antenna from reading the chip. be able to.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a plan view of a roulette wheel. FIG. 2 is a plan view of the betting board of the gaming betting device. FIG. 3 is a partially enlarged perspective view of the betting board.

  The roulette wheel 51 and the game betting device 1 are used in, for example, a casino in a casino hotel. That is, the player predicts the position of the roulette ball 61 put in the roulette wheel 51 and uses the game betting device 1 to bet the game chip 71 on the betting portion 3 corresponding to the position. Perform various games.

  The gaming betting device 1 has a plurality of betting portions 3 corresponding to the positions of the roulette wheel 51 on the upper surface thereof (for example, spots divided by numbers of 0, 00, 1, 2,..., 35, 36). Is provided, and a betting board 4 for betting game chips 71 is provided. Each betting portion 3 on the betting board 4 is an area on the upper surface of the betting board 4 divided by a frame 5. Each gaming chip 71 is provided with a wireless IC tag 72 in which information related to the gaming chip 71 is recorded. The roulette wheel 51 is provided with an output detecting device 52 for detecting the output position and the output type of the roulette ball 61 on the roulette wheel 51. Further, when the gaming chip 71 is bet on the betting part 3, the betting board 4 reads the information related to the gaming chip 71 recorded on the wireless IC tag 72, and thereby the betting position and the latch of the gaming chip 71 are read. A bet information detection device 11 (described later) for detecting value is provided. Further, although not shown in the figure, in the casino, based on the position of the roulette ball 61 on the roulette board 51 and the bet position and value of the game chip 71, a dividend for calculating the dividend of the game (roulette game). A calculation system (described later) is prepared.

  The information related to the gaming chip 71 recorded in the wireless IC tag 72 includes a unique number (number identifying the gaming chip 71) that identifies the gaming chip 71, a value ($ 1, $ 5, $ 10, etc.), color, Information such as a place where the gaming chip 71 can be used (information for identifying a casino where the gaming chip 71 is used) is included. Further, only the unique number is recorded in the gaming chip 71, and other information is stored in association with the unique number in the server device in the casino, and the information is stored based on the unique number read from the wireless IC tag 72. You may make it search.

  The appearance detecting device 52 is composed of an ID reading device (details are not shown). This ID reader includes an X-side transmitting antenna and an X-side receiving antenna that extend in parallel from the X-side scan driver, and a Y-side transmitting antenna and a Y-side receiving antenna that extend in parallel from the Y-side scan driver. It is configured by orthogonal arrangement. According to this ID reader, when scanning radio waves are transmitted from the X-side transmission antenna and the Y-side transmission antenna, reading radio waves rise near the cross point between the antennas. This radio wave for reading is received by the X-side receiving antenna and the Y-side receiving antenna, but if there is a roulette sphere 61 in the vicinity of the cross point, it changes to a reception state due to a change in impedance accompanying the dielectric formation of the roulette sphere 61 Occurs. The presence or absence of the roulette 61 is determined by detecting this change state.

  More specifically, the roulette wheel 51 has a circular rotary structure, and a total of 38 pockets 54 (only a part of which are shown in the figure) are formed concentrically with respect to the central axis 53 thereof. ing. In each pocket 54, numbers (for example, 0, 00, 1, 2,..., 35, 36) corresponding to the plurality of betting portions 3 assigned to the betting board 4 are displayed. The cross points of the ID reader are respectively arranged in 38 pockets 54. When the roulette ball 61 enters the pocket 54, the roulette ball 61 is positioned on any cross point. Since the above-described reading radio wave is always standing during the game, only the reception state of the pocket 54 changes when the roulette ball 61 is positioned on a certain cross point. As a result, it is possible to detect where the roulette ball 61 has entered the roulette wheel 51 (where the pocket 54). The data detected at this time is sent to a PTS (player tracking system) server (not shown) in the casino hotel, and the history is collectively managed.

  The roulette ball 61 is provided with a wireless IC tag (not shown) in which roulette ball identification information for identifying the roulette ball 61 is recorded. This wireless IC tag is embedded in the roulette ball 61, and the roulette ball identification information includes information such as the origin of the roulette ball 61, a usable place (a casino in which the roulette ball 61 can be used), and the type of the ball. It is included. The roulette ball identification information recorded in the roulette ball identification information recording means can be read by the ID reading device of the roll detection device 52. Based on the read information, it is possible to discriminate between the roulette sphere 61 that can be used and those that are not. For this reason, it becomes possible to prevent the occurrence of fraud or infringement such as bringing in and using a forged roulette ball 61.

  In such a gaming system, a person who wants to play on the roulette wheel 51 enters the casino with a certification card. This proof card is a card issued by a card issuing machine at the hotel front for customers who check in at the casino hotel. The certification card is a card for identifying the customer. After the card is issued, the customer can use all facilities by presenting the certification card and receiving a check in the casino hotel. For example, in a cash register at a restaurant or bar in a hotel, the payment amount is stored in the hotel server of the casino hotel in association with the identification information of the customer by reading the certification card with a card reader, and the customer checks the casino hotel. When paying out, all payment charges are displayed on the front terminal of the hotel. That is, the certification card has a function as a credit card used for various settlements in the casino hotel.

  When the customer enters the casino with a proof card, a desired number of game chips 71 are obtained by a game chip issuing / settlement machine, and a proof card reading reader (not shown) provided on the betting board 4 is shown. Set the proof card to At this time, the reading device reads the contents of the certification card, identifies the customer, and recognizes it as a participant in the game. Recognition data from the reader is sent to the PTS server described above and registered as a participant in the current game. The reading method of the certification card can be arbitrarily set (magnetic reading method, optical reading method) according to the recording method (magnetic recording, optical recording) of the certification card.

  In the roulette game, first, the dealer turns the roulette wheel 51 to insert the roulette ball 71 into the roulette wheel 51. During this time, the game participants bet the game chips 71 on hand on the desired betting portion 3 of the betting board 4. In the example of FIG. 2, one participant bets on the corner (4, 5, 7, 8), another participant bets on the straight (9), and another participant bets on the column (2to1). Yes. At this time, the bet information detection device 11 detects the bet position of each participant and the value of the premium (the amount of the premium of 1 dollar, 5 dollars, 10 dollars, etc.), and the detection result is sent to the PTS server. History is managed collectively.

  Thereafter, when the rotation of the roulette wheel 51 becomes gentle and the output of the pocket 54 containing the roulette ball 61 is “8”, for example, the output position “8” of the roulette ball 61 is set by the output detecting device 52. Detected, the detection result is sent to the PTS server, and the history is collectively managed. The PTS server may collectively manage history and various data regarding roulette boards other than the roulette board 51 and other gaming machines such as slot machines.

  A payout calculation system is constructed in a totaling / analysis server (not shown) in the casino hotel, and the position of the roulette ball 61 on the roulette wheel 51 (the outcome “8” in the above example) and the gaming chip. Based on the bet position of 71 and the value of the bet, the dividend of the game (roulette game) is calculated.

  Next, the bet information detection device 11 of the game betting device 1 will be described in detail.

  FIG. 4 is a block diagram of an electrical connection between the reading device 12, the control device 14, and the wireless IC tag 72 of the bet information detection device 11.

  The control device 14 generates a magnetic field to cause the wireless IC tag 72 to generate power with respect to the reading device 12, and reads the information recorded in the wireless IC tag 72 and transmits the data. Command.

  The reading device 12 includes a plurality of antennas (loop antennas) 21, a transmission / reception unit 22, a switching unit 23, and a control unit 24.

  The control unit 24 receives a command from the control device 14 and drives the transmission / reception unit 22 and the switching unit 23 according to the command.

  The transmission / reception unit 22 generates a magnetic field (electromagnetic field) for energizing the antenna 21 to generate electricity in the wireless IC tag 72. That is, the antennas 21 are sequentially switched, and a magnetic field is generated in order for each antenna 21. Simultaneously with the generation of this magnetic field, the switching unit 23 reads the information of the wireless IC tag 72 by demodulating the load-modulated radio wave signal by the transmission / reception unit 22.

  The wireless IC tag 72 is a so-called magnetic field type wireless IC tag, and includes a memory 73, a control unit 74, a transmission / reception unit 75, and an antenna 76. The memory 73 is a storage device that stores a unique number that identifies the gaming chip 71 (a number that identifies the gaming chip 71). Further, as described above, information such as value ($ 1, $ 5, $ 10, etc.) and color, a place where the gaming chip 71 can be used (information for identifying a casino where the gaming chip 71 is used), and the like are stored. You may do it. The control unit 74 interprets commands, requests, instructions, and the like received from the reading device 12 and executes operations in response thereto. The transmission / reception unit 75 includes a modulation unit (not shown) and a demodulation unit (not shown), and modulates / demodulates a signal in order to communicate with the reading device 12. The antenna 76 feeds power to the transmission / reception unit 75 by the magnetic field from the reading device 12, receives the modulated wave modulated from the transmission / reception unit 75, and radiates it into the air so that the reading device 12 receives it.

  As described above, the bet information detection device 11 performs power generation of the wireless IC tag 72 and reading of information of the wireless IC tag 72 by the antenna 21 of the reading device 12, but these are performed by separate antennas. You may make it do.

  Next, the switching unit 23 of the reading device 12 will be described.

  5 to 8 are circuit diagrams illustrating the configuration of the switching unit 23.

  The switching unit 23 includes an X side scan driver 41 and a Y side scan driver 42. A plurality of X-side transmission lines 43 extending in parallel with each other extend from the X-side scan driver 41. Further, a plurality of Y side transmission lines 44 extending in parallel to each other extend from the Y side scan driver 42. One of the plurality of X-side transmission lines 43 and the plurality of Y-side transmission lines 44 extend in the vertical direction and the other in the horizontal direction, and intersect each other. A relay circuit 45 is provided at each cross point. Each relay circuit 45 has one end of the coil 46 connected to the X-side transmission line 43 and the other end connected to the Y-side transmission line 44. A diode 48 is interposed on the X side transmission line 43 side of the coil 46 with the X side transmission line 43 side as a cathode side and the coil 46 side as an anode side. Normally, when each relay circuit 45 is turned off, each X-side transmission line 43 is maintained at the H level, and each Y-side transmission line 44 is maintained at the L level. When it is desired to turn on the switch 47 of any of the relay circuits 45, the X-side transmission line 43 to which the desired relay circuit 45 is connected at the cross point is switched to the L level, and similarly, the connection is made at the cross point The Y-side transmission line 44 being switched is switched to the H level. This energizes the coil 46 and closes the switch 47.

  FIG. 7 is a circuit diagram illustrating a matching circuit, a switch, and the like provided in the switching unit 23.

  In the switching unit 23, two sets of relay circuits 45 are provided corresponding to each antenna 21. In addition, the switching unit 23 includes a plurality of matching circuits 81 respectively corresponding to a pair of relay circuits 45, and a switch 82 connected to each matching circuit 81.

  As shown in FIG. 7, when the relay circuit 45 is connected, the transmission / reception unit 22 and the antenna 21 are connected via the matching circuit 81 and the switch 82, and the antenna 21 is energized and driven by the transmission / reception unit 22. The At this time, the matching circuit 81 performs impedance matching between the transmission / reception unit 22 and the antenna 21.

  Further, it is possible to prevent the antenna 21 from being energized by the transmission / reception unit 22 in a state where the relay circuit 45 is connected as shown in FIG.

  Furthermore, when the relay circuit 45 is connected as shown in FIG. 8, the antenna 21 is short-circuited.

  Next, the arrangement of each antenna 21 will be described.

  FIG. 9 is a plan view showing an example of the arrangement of the antennas 21 on the betting board 4.

  Numbers such as (11) number, (12) number, (13) number,... In this example, one or a plurality of antennas 21 are arranged corresponding to each bet portion 3. Then, the antennas 21 of all the betting portions 3 are sequentially driven one by one in the order of the betting portions 3 of (11), (12), (13),. It is possible to sequentially read the wireless IC tags 72 of the gaming chips 71 that are being used.

  FIG. 10 is a plan view showing another example of the arrangement of the antennas 21 on the betting board 4. In this example, a vertically long area 91 numbered (11), (12), (13),..., (51), (52), (53),. Each of the horizontally long regions 91 and the horizontally long regions 92 intersects with each other, and each of the rectangular regions intersecting with each other corresponds to each betting portion 3. Become. One or a plurality of antennas 21 are arranged corresponding to each of the vertically long regions 91, and one or a plurality of antennas 21 are arranged corresponding to each of the horizontally long regions 92. Therefore, by driving the antenna 21 in a certain area 91, the wireless IC tag 72 of the gaming chip 71 arranged on the area 91 can be read, and by driving the antenna 21 in a certain area 92, The wireless IC tag 72 of the gaming chip 71 arranged on the area 92 can be read.

  In this example, for example, the antennas 21 of the vertically long area 91 are sequentially driven in the order of number (11), number (12), number (13),..., And then number (51), number (52) , (53),... Are sequentially driven in the horizontally long area 92. For example, when the gaming chip 71 is placed in a plurality of betting parts 3 corresponding to the area 91 of (11), the wireless IC tags 72 of the gaming chips 71 in the entire area 91 are not distinguished from each other. Although the same reading operation will be performed for all of the horizontally long areas 92 (51), (52), (53),... Later, the reading results of the vertically long areas 91 are read. And the reading result of each horizontally long region 92 are ANDed, and the reading result of the wireless IC tag 72 of the gaming chip 71 placed in each betting portion 3 can be clarified.

  As described above with reference to FIGS. 9 and 10, the gaming betting device 1 performs the reading operation of the wireless IC tag 72 of the gaming chip 71 by sequentially driving the antennas 21 one by one. However, it is also possible to drive the plurality of antennas 21 simultaneously to perform a reading operation.

  That is, for the antenna 21 of one desired betting portion 3, the relay circuit 45 is switched as shown in FIG. 7 and the antenna 21 is energized from the transmitting / receiving unit 22 via the matching circuit 81. For each antenna 21 of one or a plurality of betting portions 3, the matching circuit 81 is connected to the antenna 21 without switching the relay circuit 45 as shown in FIG.

  As shown in FIG. 7, the antenna 21 connected to the matching circuit 81 is impedance-matched with the transmission / reception unit 22. One or more other antennas 21 that are not connected to the matching circuit 81 are energized from the transmitting / receiving unit 22 and resonate with the antenna 21 that is connected to the matching circuit 81. The wireless IC tag 72 of each gaming chip 71 of the plurality of betting portions 3 provided can be read at a time.

  Therefore, in addition to each antenna 21 corresponding to a single bet portion 3 (or a single vertically long region 91 and each horizontally long region 92), a dedicated region corresponding to a wide range of a plurality of bet portions 3 is used. Even if the antenna is not provided, the wireless IC tag 72 of each gaming chip 71 in the wide range can be read at once using a plurality of antennas 21, and each antenna 21 corresponding to the wide range is sequentially driven. Thus, the reading operation can be performed at a higher speed than when the wireless IC tag 72 of each gaming chip 71 is read. For this reason, it is only necessary to provide the antenna 21 without providing a dedicated antenna corresponding to a wide range of the plurality of betting portions 3, so that the manufacturing cost can be reduced.

  On the other hand, the magnetic field lines of the magnetic field generated from the antenna 21 draw a concentric loop. And when magnetic force is too strong, the radio | wireless of the game chip 71 on the other bet site | part 3 arrange | positioned around the said bet site | part 3 with the magnetic field generated by the antenna 21 corresponding to a certain bet site | part 3 is carried out. There is a risk that the IC tag 72 may be read by mistake.

  In this case, other than the antenna 21 that is energized from the transmitting / receiving unit 22 and connected to the matching circuit 81, and one or more antennas 21 that are not energized from the transmitting / receiving unit 22 but are connected to the matching circuit 81. The antenna 21 (at least the antenna 21 around the antenna 21 connected to the matching circuit 81) corresponds to the antenna 21 by switching the relay circuit 45 and shorting the antenna 21 as shown in FIG. The wireless IC tag 72 of each gaming chip 71 in the betting portion 3 is not erroneously read.

  Next, this point will be described in more detail.

  FIG. 11 is an explanatory diagram for explaining a magnetic field generated when the antenna 21 corresponding to a certain betting portion 3 is driven by turning on the relay circuit 45. Here, the “A” antenna 21 arranged in the central bet part 3 is driven by turning on the relay circuit 45, and the “B” and “C” antennas 21 arranged in the left and right bet parts 3 are driven. The relay circuit 45 remains off.

  At this time, lines of magnetic force indicating a magnetic field generated from the antenna 21 are indicated by a symbol m. At this time, the wireless IC tag 72 of the gaming chip 71 placed in the central betting portion 3 is generated by the upward magnetic field m1 as indicated by the arrow, and the information transmitted by the wireless IC tag 72 can be read by the antenna 21. .

  In this case, the lines of magnetic force m draw a concentric loop. The downward magnetic field m2 of the magnetic field line m describing the loop extends to the left and right bet portions 3 adjacent to the central bet portion 3 where the wireless IC tag 72 is read.

  However, the antennas 21 arranged corresponding to the left and right bet portions 3 are short-circuited by switching the relay circuit 45 as shown in FIG. Therefore, this downward magnetic field m2 acts on the antenna 21 and an induced current flows, and this induced current generates an induced magnetic field (direction of arrow m3). Since this induction magnetic field becomes an upward magnetic field m3 that cancels the downward magnetic field m2, the downward magnetic field m2 is canceled by the induction magnetic field m3, and the wireless IC tag 72 of the gaming chip 71 placed on the left and right betting parts 3 by the downward magnetic field m2. Can be prevented from being read.

  In this case, the antenna 21 of the betting portion 3 around the betting portion 3 corresponding to the antenna 21 is short-circuited by a short time earlier than the start of driving by turning on the relay circuit 45 for the certain antenna 21, Further, the short circuit of the antenna 21 of the bet portion 3 around the bet portion 3 corresponding to the antenna 21 is released after a slight time later than the end of driving by turning off the relay circuit 45 for the antenna 21. It is desirable to do.

  That is, when control is performed so that the start and end of driving of an antenna 21 and the short circuit of the antenna 21 of the bet part 3 around the bet part 3 corresponding to the antenna 21 and the release of the short circuit are performed simultaneously, In reality, the timing of the two is slightly shifted, and the antenna 21 of the target betting portion 3 is driven to play the game of the surrounding betting portion 3 even though the antenna 21 of the surrounding betting portion 3 is not short-circuited. There is a possibility that even the wireless IC tag 72 of the chip 71 is read.

  Therefore, if the timings of both are slightly shifted in this way, the gaming chips 71 in the betting area 3 around the target betting area 3 are not erroneously read.

  In the above example, the example of the betting board 4 used for playing a game using the roulette wheel has been described. However, the betting used for blackjack, poker and other games used in casinos and the like. You may make it apply this invention to the board for use.

It is a top view of a roulette wheel. It is a top view of the betting board of the game betting device. It is a partially expanded perspective view of the betting board. It is a block diagram of the electrical connection of the reader of a bet information detection apparatus, a control apparatus, and a wireless IC tag. It is a circuit diagram explaining the structure of a switching part. It is a circuit diagram explaining the structure of a switching part. It is a circuit diagram explaining the structure of a switching part. It is a circuit diagram explaining the structure of a switching part. It is a top view which shows an example of arrangement | positioning of each antenna in the board for bets. It is a top view which shows an example of arrangement | positioning of each antenna in the board for bets. It is explanatory drawing explaining generation | occurrence | production of the magnetic field from an antenna. It is explanatory drawing of the example of arrangement | positioning of the game chip | tip on a betting board. It is explanatory drawing of the example of arrangement | positioning of the game chip | tip on a betting board. It is a top view of antenna arrangement | positioning of the board for bets.

Explanation of symbols

1 gaming betting device 3 betting part 4 betting board 12 reader 21 antenna 71 gaming chip 72 wireless IC tag

Claims (2)

A board for betting,
A plurality of antennas corresponding to each area of the betting board, and an antenna for detecting gaming chips placed on the betting board;
An energization circuit for energizing the antenna;
A matching circuit for impedance matching between the antenna and the energization circuit;
Control means for energizing the desired antenna from the energizing circuit via the matching circuit, and connecting the matching circuit and the antenna without energizing the desired antenna among the other antennas from the energizing circuit; ,
A gaming betting device comprising:   2. The game according to claim 1, wherein the control unit short-circuits the antenna energized from the energization circuit and an antenna other than the antenna connected to the matching circuit without performing the energization. Bet equipment.

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