JP4886059B2 - Switch device, security system - Google Patents

Description

  The present invention relates to a switch device including an operation switch for driving an operation unit provided on an object, and a security system.

  In recent years, for reasons such as vehicle theft prevention, a portable device capable of transmitting an ID code signal including an ID code is possessed by the owner of the vehicle instead of a conventional mechanical key. A smart ignition function has been proposed in which a vehicle engine can be started by an ID code signal wirelessly transmitted from the portable device (see, for example, Patent Document 1).

  For example, in a vehicle having a smart ignition function, a push-type ignition switch and a portable device slot device into which a portable device can be inserted are installed on an instrument panel in the vehicle interior. Normally, the owner communicates with the vehicle by an ID code signal automatically transmitted from the portable device while the portable device is put in a pocket of clothes or the like. At this time, on the condition that the ID code included in the ID code signal from the portable device matches the ID code set in advance in the vehicle, the engine of the vehicle is ready to start. In this state, by pushing the ignition switch, the starter motor is driven and the vehicle engine is started.

  The portable device slot device is used as an emergency when the ID code signal is not automatically transmitted from the portable device due to a voltage drop of the battery of the portable device. Specifically, when a portable device is inserted into the portable device slot device, a transponder signal including a transponder ID code (transponder code) is transmitted from the transponder provided in the portable device, and ID verification is performed with the vehicle. .

JP 2002-188505 A

  However, as described above, the portable device slot device is installed for emergency use and is not usually used. Nevertheless, since the portable device slot device includes a holding mechanism for holding the portable device, it is necessary to secure the mounting space on the vehicle side to some extent. However, due to the rapid advancement of electronic and high-functionality vehicle systems recently, there is a tendency to increase the number of electrical and electronic components that are installed, so portable device slot devices are installed in a limited space on the vehicle side. It has been very difficult to secure enough space. In addition, since the portable device slot apparatus is composed of a large number of parts such as a holding mechanism for holding the portable device and a coil antenna that outputs a transponder driving radio wave, there has been a problem that the manufacturing cost increases.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a switch device that can reduce the mounting space on the vehicle and reduce the manufacturing cost.

  In order to achieve the above object, the invention according to claim 1 is an operation switch for driving an operating portion provided on an object based on only a push operation of one operation button, and a switch into which the operation button is fitted. The operation is performed on the condition that an ID code included in a transponder signal transmitted from a transponder provided in a portable device separate from the object matches a preset ID code. In the switch device in which the operation by the switch is validated, the switch device has no mechanism for holding the portable device, and the outer end surface of the bezel on which the decorative plating is performed is the outer edge of the operation button. The switch holder outputs a transponder driving radio wave for generating an electromotive force in the transponder. A coil antenna is annularly provided along the outer edge of the operation button, the outer end surface of the switch holder is exposed from the periphery of the outer end surface of the bezel, and the operation button is disposed inside the coil antenna. This is the gist.

  With this configuration, the coil antenna can be efficiently arranged in the space around the operation switch. For this reason, the space which an operation switch and a coil antenna occupy can be made small. Therefore, the space for mounting on the vehicle can be reduced.

  In the switch device according to claim 1, for example, according to the invention according to claim 2, the operation button is arranged in a mode in which the operation surface is positioned on an inner side of the outer end surface of the switch holder. It is effective to adopt a structure that fits into the switch holder.

  Here, when adopting the configuration according to claim 2, as in the invention according to claim 3, the operation button is configured such that a part of its operation surface is flush with the outer end surface of the switch holder. It is more effective to adopt a structure that fits into the switch holder in such a manner.

  Furthermore, in the switch device according to any one of claims 1 to 3, for example, according to the invention according to claim 4, the operation button has a circular shape in a cross section orthogonal to the center line of the coil antenna. It is also effective to adopt a structure that is formed in the same size as the inside of the coil antenna.

  When the configuration according to any one of claims 1 to 4 is employed, the transponder signal transmitted from the transponder of the portable device is amplified and demodulated as in the invention according to claim 5. A circuit board on which a demodulation circuit to be mounted is mounted, and a connector for outputting a transponder signal processed by the circuit board to an external device, the coil antenna, the operation button, the circuit board, and The connector may be integrated to form a single switch module.

  According to a sixth aspect of the present invention, there is provided a switch device having an operation switch for driving an operating portion provided on an object based on only a push operation of one operation button, and a switch holder into which the operation button is fitted, A request signal output means for outputting a request signal to a predetermined area set in the object, and a portable device for outputting an ID code signal including an ID code in response to receiving the request signal from the request signal output means; A first determination means for collating an ID code included in an ID code signal from the portable device with a preset ID code and determining whether or not the ID codes match, and the first determination First control means for enabling the operation by the operation switch when it is determined by the means that the ID codes match, Second determination means for determining whether or not an ID code included in a transponder signal transmitted from a transponder provided in the portable device matches a preset ID code; and the ID code by the second determination means And a second control unit that activates the operation by the operation switch when it is determined that the two match each other, and the switch device has a mechanism for holding the portable device. The outer end face of the bezel subjected to decorative plating is provided at the outer edge of the operation button, and the switch holder is provided with a coil antenna that outputs a transponder driving radio wave for generating an electromotive force in the transponder. An annular shape is provided along the outer edge of the operation button, and the outer end surface of the switch holder Exposed from the periphery of the outer end surface of the Le, the operation button is summarized in that comprised disposed inside the coil antenna.

  According to this configuration, an electromotive force can be generated in a transponder provided in the portable device only by arranging the portable device near the operation button. For this reason, mutual communication with the object by the transponder signal becomes possible, and the operation by the operation switch can be validated. Therefore, the conventional holding mechanism for holding the portable device is not necessary, and the number of parts can be greatly reduced correspondingly. Therefore, the manufacturing cost can be reduced.

  As described above in detail, the mounting space on the vehicle can be reduced, and the manufacturing cost can be reduced.

The block diagram which shows the electrical constitution of the security system in this embodiment. The perspective view of the instrument panel vicinity seen from the vehicle interior. The perspective view of the switch apparatus in this embodiment. The fragmentary sectional view of the switch device in this embodiment. The fragmentary sectional view of the switch device of another example.

Hereinafter, an embodiment of a switch device and a security system embodying the present invention will be described with reference to FIGS.
As shown in FIG. 1, the security system 1 includes a vehicle-side control device 10 mounted on a vehicle 2 and a portable device 20 that is separate from the vehicle 2. The portable device 20 is owned by the owner of the vehicle 2.

  The vehicle side control device 10 includes a vehicle side transmission circuit 13, a vehicle side reception circuit 14, and a transponder signal transmission / reception circuit 15, which are connected to the vehicle side microcomputer 12. A transmission antenna 13 a is connected to the vehicle-side transmission circuit 13, and a coil antenna 17 as a transmission / reception antenna is connected to the transponder signal transmission / reception circuit 15. A reception antenna 14 a that receives an ID code signal from the portable device 20 is connected to the vehicle-side reception circuit 14.

  The vehicle-side control device 10 includes a vehicle-side microcomputer (hereinafter simply referred to as a vehicle-side microcomputer) 12 as request signal output means, and the vehicle-side microcomputer 12 transmits a request signal to the portable device 20. The memory provided in the vehicle-side microcomputer 12 stores a unique ID code assigned to each owner's vehicle.

  The vehicle-side transmission circuit 13 converts a request signal intermittently output from the vehicle-side microcomputer 12 into a radio wave having a predetermined frequency and transmits it to a predetermined area inside the vehicle 2 via the transmission antenna 13a. The transponder signal transmission / reception circuit 15 converts the transponder drive signal output from the vehicle-side microcomputer 12 into a radio wave of a predetermined frequency to generate a transponder drive radio wave, and transmits the transponder drive radio wave to a predetermined area in the vehicle interior via the coil antenna 17. .

  The vehicle side reception circuit 14 demodulates the ID code signal from the portable device 20 into a pulse signal to generate a reception signal, and outputs the reception signal to the vehicle side microcomputer 12. The transponder signal transmission / reception circuit 15 demodulates the transponder signal from the portable device 20 into a pulse signal, generates a reception signal, and outputs the reception signal to the vehicle-side microcomputer 12.

  An ignition switch 30 as an operation switch provided in the passenger compartment is electrically connected to the input side of the vehicle-side microcomputer 12. An engine starter 18 is electrically connected to the output side of the vehicle-side microcomputer 12. The engine starter 18 is a device that automatically starts an engine as an operating unit when a start signal is input.

  The vehicle-side microcomputer 12 as the first determination means collates the ID code stored in the memory in advance with the ID code included in the ID code signal as the data signal transmitted from the portable device 20, and the ID codes It is determined whether or not. When it is determined that the ID codes match, the vehicle-side microcomputer 12 serving as the first control means receives a start signal or a stop signal from the engine start device 18 when an on signal or an off signal is input from the ignition switch 30. A signal is output, and the operation by the ignition switch 30 is validated. Here, enabling the operation by the ignition switch 30 means that the engine of the vehicle 2 being stopped can be driven or the engine being driven can be stopped by pushing the ignition switch 30. Say.

  On the other hand, when it is determined that the ID codes do not match, the vehicle-side microcomputer 12 can output a start signal or a stop signal to the engine starter 18 even if an on signal or an off signal is input from the ignition switch 30. First, the operation by the ignition switch 30 is invalidated. Here, invalidating the operation by the ignition switch 30 means that even if the ignition switch 30 is pushed, the engine of the vehicle 2 being stopped cannot be driven or the engine being driven cannot be stopped.

  Further, the vehicle-side microcomputer 12 as the second determination means collates the transponder ID code (hereinafter simply referred to as transponder code) stored in the memory with the transponder code included in the transponder signal from the transponder 25. Then, it is determined whether or not these transponder codes match. When it is determined that the transponder codes coincide with each other, the vehicle-side microcomputer 12 as the second control means receives a start signal or a stop signal from the engine start device 18 when an on signal or an off signal is input from the ignition switch 30. A signal is output, and the operation by the ignition switch 30 is validated.

  On the other hand, when it is determined that the transponder codes do not match, the vehicle-side microcomputer 12 can output a start signal or a stop signal to the engine starter 18 even if an on signal or an off signal is input from the ignition switch 30. First, the operation by the ignition switch 30 is invalidated.

  The portable device 20 includes a portable device-side microcomputer (hereinafter simply referred to as a portable device-side microcomputer) 22. The portable device side microcomputer 22 receives the request signal transmitted from the vehicle side microcomputer 12, and identifies whether the request signal is the request signal of the owner. And only when it identifies that it is a request signal transmitted from the owner's vehicle 2, the portable device side microcomputer 22 transmits an ID code signal to the vehicle side control apparatus 10. FIG. The ID code signal includes a unique ID code that can identify the owner's vehicle 2 and other vehicles, and this ID code is stored in a memory provided in the portable device side microcomputer 22. Yes.

  The portable device 20 includes a portable device side transmission circuit 23 and a portable device side reception circuit 24, which are connected to the portable device side microcomputer 22. A transmission antenna 23 a that transmits an ID code signal is connected to the portable device side transmission circuit 23, and a reception antenna 24 a that receives a request signal from the vehicle 2 is connected to the portable device side reception circuit 24. The portable device side transmission circuit 23 converts the ID code signal output from the portable device side microcomputer 22 into a radio wave having a predetermined frequency, and transmits the ID code signal via the transmission antenna 23a. The portable device side receiving circuit 24 demodulates the request signal from the vehicle 2 into a pulse signal to generate a received signal, and outputs the received signal to the portable device side microcomputer 22.

  The portable device 20 includes a transponder 25. This transponder 25 is used as an emergency means when a battery as a power source of the portable device side microcomputer 22 is exhausted. The transponder 25 can transmit a transponder signal including a unique transponder code that can identify the owner's vehicle 2 and other vehicles to the vehicle-side control device 10. The vehicle-side control device 10 generates a transponder driving radio wave as an electromagnetic field under a predetermined condition, and when the transponder 25 is disposed in a communication area where the electromagnetic field is generated, the vehicle-side control device 10 Electric power is generated. Then, a transponder signal including a transponder code is transmitted from the transponder 25.

  As shown in FIG. 2, an operation button 36 of the ignition switch 30 is disposed on the instrument panel 3 in front of the driver's seat in the passenger compartment. The ignition switch 30 is alternately turned on and off by pushing the operation button 36.

  As shown in FIGS. 3 and 4, the switch device 35 includes an ignition switch 30, a bezel 33, and a switch holder 34, so that the outer end surface of the bezel 33 and the operation button 36 of the ignition switch 30 are exposed. Is disposed inside the instrument panel 3.

  The ignition switch 30 is accommodated and disposed inside a bezel 33 formed in a substantially cylindrical shape. The bezel 33 is made of resin, and the surface of the bezel 33 is subjected to decorative plating. The outer end portion 33 a of the bezel 33 is bent outward, and the bent portion is locked to the outer end surface 34 a of the switch holder 34.

  The switch holder 34 includes an annular fitting portion 40 into which the operation button 36 of the ignition switch 30 is fitted, and the coil antenna 17 is embedded in the fitting portion 40. The coil antenna 17 is disposed along the outer edge of the operation button 36 of the ignition switch 30, and the center line C <b> 2 is disposed so as to be substantially collinear with the axis C <b> 1 of the ignition switch 30. The coil antenna 17 outputs a transponder drive radio wave to a communicable area formed near the operation button 36 of the ignition switch 30. By arranging the transponder 25 of the portable device 20 in this communicable area, an electromotive force is generated in the coil provided in the transponder 25.

  A substrate storage portion 41 extending from the end portion of the fitting portion 40 along the central axis thereof is projected. A circuit board 42 disposed in the board storage unit 41 includes a lighting circuit for performing lighting control of an LED (not shown) that is turned on via a display unit 38 provided on the operation surface of the operation button 36, and a portable device. 20 is provided with a demodulating circuit for amplifying the transponder signal transmitted from the transponder 25 within 20 and demodulating it to a predetermined frequency. In addition, for example, when the functional position of the electric system of the vehicle 2 is switched, such as ACC (accessory) or ON (ignition on), the LED is lit so that the functional position can be identified.

  A connector 46 protrudes from the end of the board housing portion 41, and a lighting signal, a demodulated transponder signal, and the like are output to the vehicle-side microcomputer 12 through the connector 46. In the switch holder 34, the fitting portion 40 and the substrate storage portion 41 are integrally formed by resin molding.

Subsequently, a series of operations for starting the engine will be described with reference to FIGS.
When the owner who owns the portable device 20 enters a predetermined area inside the vehicle 2 in normal times, an ID code signal is automatically transmitted from the portable device 20 in response to a request signal output from the vehicle-side control device 10. Is done. On the vehicle 2 side, the vehicle-side control device 10 receives the ID code signal transmitted from the portable device 20, the vehicle-side microcomputer 12 performs ID verification, and starts the engine starter 18 based on the ID verification result. It is determined whether to output a signal or a stop signal. When it is determined that the ID codes match each other, the operation by the ignition switch 30 is validated. In this case, when an ON signal is input from the ignition switch 30, a start signal is output to the engine starter 18, and the engine of the vehicle 2 that is stopped is driven. Alternatively, when an off signal is input from the ignition switch 30, the engine of the vehicle 2 that is being driven is stopped.

  However, when a battery voltage drop or the like of the portable device 20 occurs and the ID code signal is not automatically transmitted from the portable device 20, the owner places the portable device 20 against the operation button 36 of the ignition switch 30, The operation button 36 is pushed in the state. At this time, the transponder 25 provided in the portable device 20 is disposed in the communication area of the transponder driving radio wave output from the coil antenna 17. For this reason, an electromotive force is generated in the coil in the transponder 25 by the transponder driving radio wave, and a transponder signal including a transponder code is transmitted from the portable device 20 to the vehicle-side control device 10.

  When the transponder signal transmitted from the portable device 20 is input to the vehicle-side control device 10, the vehicle-side microcomputer 12 collates the transponder code, and based on the ID collation result, the engine start device 18 receives a start signal or It is determined whether to output a stop signal. When it is determined that the transponder codes coincide with each other, the operation by the ignition switch 30 is validated, and the engine of the vehicle 2 being stopped is driven or the engine of the vehicle 2 being driven is stopped.

According to this embodiment, the following effects can be obtained.
(1) An operation button 36 of the ignition switch 30 is disposed along the inner edge of the coil antenna 17. For this reason, the ignition switch 30 can be efficiently arranged using the space inside the coil antenna 17 effectively. Therefore, the space occupied by the ignition switch 30 and the coil antenna 17 can be reduced. Therefore, the space for mounting the switch device 35 on the vehicle 2 can be reduced, and the appearance of the switch device 35 can be improved when viewed from the driver's seat. In addition, the owner can generate an electromotive force in the transponder 25 provided in the portable device 20 only by abutting the portable device 20 near the operation button 36 of the ignition switch 30. For this reason, mutual communication with the vehicle-side control device 10 by the transponder signal is possible, and the operation by the ignition switch 30 can be validated. Therefore, the holding mechanism for holding the portable device 20 as in the prior art is not necessary, and the number of parts can be greatly reduced accordingly. Therefore, the manufacturing cost can be reduced.

  (2) The switch device 35 is disposed inside the instrument panel 3 in an integrated state by assembling the ignition switch 30, the bezel 33, and the switch holder 34. For this reason, size reduction of the switch apparatus 35 can be achieved and the mounting space in the vehicle 2 can be made still smaller.

  (3) The owner presses the portable device 20 against the operation button 36 and directly pushes the ignition switch 30, thereby driving the engine of the vehicle 2 that is stopped or stopping the engine that is being driven. be able to. For this reason, the owner can perform the mutual communication with the vehicle side control device 10 by the transponder signal and the push operation of the ignition switch 30 almost simultaneously at one place. Therefore, the operability when driving or stopping the engine of the vehicle 2 can be improved.

  (4) A circuit board 42 is housed and disposed in the board housing part 41 of the switch holder 34. On the circuit board 42, a lighting circuit for controlling the lighting of LEDs on the display unit 38, a portable circuit A demodulation circuit for demodulating the transponder signal from the transponder 25 in the machine 20 to a predetermined frequency is formed. For this reason, by forming the lighting circuit and the demodulating circuit on one circuit board 42, the accommodation space of the circuit board 42 is reduced as compared with the case where the circuits are formed on different boards and the boards are arranged separately. be able to. Therefore, the switch device 35 can achieve further downsizing.

  (5) The bezel 33 on which the decorative plating is applied has a bent portion exposed at the outer edge of the operation button 36 of the ignition switch 30. For this reason, when viewed from the driver's seat, the position of the operation button 36 of the ignition switch 30 can be made conspicuous by the bezel 33. Therefore, the owner can easily grasp the position of the operation button 36 of the ignition switch 30 when driving or stopping the engine of the vehicle 2.

In addition, you may change this embodiment as follows.
In the present embodiment, the coil antenna 17 that outputs the transponder driving radio wave is embedded in the fitting portion 40 of the switch holder 34. As another configuration, an accommodation recess may be formed on the inner surface of the fitting portion 40 of the switch holder 34, and the coil antenna 17 may be accommodated in the accommodation recess. Further, a coil antenna housing portion may be provided in the bent portion of the bezel 33, and the coil antenna 17 may be disposed in the coil antenna housing portion. In this case, it is desirable to omit the decorative plating on the surface of the bezel 33 in order to prevent the shielding effect of the transponder driving radio wave. Further, the ignition switch 30 may be provided with a coil antenna accommodating portion, and the coil antenna 17 may be disposed in the coil antenna accommodating portion. In this case, it is desirable to use the touch type ignition switch 30 instead of the push type ignition switch 30.

  In the present embodiment, the switch device 35 includes an ignition switch 30, a bezel 33, and a switch holder 34. As another configuration, the switch device 35 may be configured by the ignition switch 30 and the switch holder 34 by omitting the bezel 33.

  As shown in FIG. 5, the circuit board 42 and the connector 46 may be disposed inside the ignition switch 30. In this case, since the board | substrate storage part 41 can be abbreviate | omitted, the further size reduction of the switch apparatus 55 can be achieved.

  In the present embodiment, the portable device 20 is abutted against the operation button 36 of the ignition switch 30 and the operation button 36 is pushed in that state. As another method, the operation button 36 may be pushed with a finger while the portable device 20 is held near the operation button 36.

  In the present embodiment, the switch operation method in which the portable device 20 is abutted against the operation button 36 of the ignition switch 30 and the operation button 36 is pushed in that state is not automatically transmitted from the portable device 20 to the ID code signal. I did it sometimes. However, this switch operation method may be performed at the normal time when the ID code signal can be automatically transmitted from the portable device 20.

  In the present embodiment, when it is determined that the transponder codes coincide with each other, the engine of the vehicle 2 that is stopped is driven or the engine of the vehicle 2 that is being driven is stopped. As another configuration, even if the transponder codes do not coincide with each other, the engine of the vehicle 2 being driven may be stopped by operating the ignition switch 30.

In the present embodiment, the security system 1 is embodied as a smart ignition system in which the engine of the vehicle 2 can be started based on the ID code signal, and the operation switch is embodied as the ignition switch 30. As another configuration, the security system 1 may be embodied as a smart entry system that automatically locks and unlocks the door lock of the vehicle 2 based on an ID code signal, and the operation switch may be embodied as a door switch. Furthermore, the security system 1 may be embodied in an operating system that drives any on-vehicle electrical component or a locking / unlocking system that locks / unlocks a door, for example, in a house other than the vehicle 2.
(Appendix)
Next, the technical idea grasped by the above embodiment and another example will be described below.

  (A) A display unit for displaying the functional position of the object is disposed on the operation surface of the operation button, and a lighting circuit for performing lighting control of the display unit and a transponder signal transmitted from the transponder are predetermined. The switch device according to claim 1, wherein a demodulator circuit that demodulates to a frequency of 1 is formed on one circuit board, and the circuit board is disposed in the switch holder.

  DESCRIPTION OF SYMBOLS 1 ... Security system, 2 ... Vehicle (object), 12 ... Vehicle side microcomputer (request signal output means), (1st determination means), (1st control means), (2nd determination means), (2nd control) Means), 17 ... coil antenna, 20 ... portable device, 25 ... transponder, 30 ... ignition switch (operation switch), 35 ... switch device.

Claims (6)

Provided in a portable device that is separate from the object, comprising an operation switch that drives an operating part provided on the object based only on a push operation of one operation button, and a switch holder into which the operation button is fitted. In the switch device in which the operation by the operation switch is validated on condition that the ID code included in the transponder signal transmitted from the transponder is matched with the preset ID code,
In the switch device, a mechanism for holding the portable device is not formed,
The outer end surface of the bezel subjected to decorative plating is provided on the outer edge of the operation button,
In the switch holder, a coil antenna that outputs a transponder driving radio wave for generating an electromotive force in the transponder is provided annularly along an outer edge of the operation button,
The outer end surface of the switch holder is exposed from the periphery of the outer end surface of the bezel,
The switch device, wherein the operation button is disposed inside the coil antenna.   2. The switch device according to claim 1, wherein the operation button is fitted into the switch holder in such a manner that an operation surface thereof is located in a portion inside the outer end surface of the switch holder.   The switch device according to claim 2, wherein the operation button is fitted into the switch holder so that a part of an operation surface thereof is flush with an outer end surface of the switch holder.   The said operation button is a member formed in the circular shape in the cross section orthogonal to the centerline of the said coil antenna, and the same magnitude | size as the magnitude | size inside the said coil antenna. The switch device according to claim 1.   A circuit board on which a demodulation circuit for amplifying and demodulating a transponder signal transmitted from the transponder of the portable device is mounted, and a connector for outputting the transponder signal processed by the circuit board to an external device. The switch device according to any one of claims 1 to 4, wherein the coil antenna, the operation button, the circuit board, and the connector are integrated to form a single switch module. An operation switch for driving an operating portion provided on an object based only on a push operation of one operation button, and a switch device having a switch holder into which the operation button is fitted;
Request signal output means for outputting a request signal to a predetermined area set in the object;
A portable device that outputs an ID code signal including an ID code in response to receiving a request signal from the request signal output means;
A first determination unit that collates an ID code included in an ID code signal from the portable device with a preset ID code and determines whether or not the ID codes match;
First control means for activating an operation by the operation switch when the first determination means determines that the ID codes match each other;
Second determination means for determining whether an ID code included in a transponder signal transmitted from a transponder provided in the portable device matches a preset ID code;
A security system comprising: a second control unit that activates an operation by the operation switch when the second determination unit determines that the ID codes match each other;
In the switch device, a mechanism for holding the portable device is not formed,
The outer end surface of the bezel subjected to decorative plating is provided on the outer edge of the operation button,
In the switch holder, a coil antenna that outputs a transponder driving radio wave for generating an electromotive force in the transponder is provided annularly along an outer edge of the operation button,
The outer end surface of the switch holder is exposed from the periphery of the outer end surface of the bezel,
The security system, wherein the operation button is disposed inside the coil antenna.

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