JP7303140B2 - switch device - Google Patents

Description

The present invention relates to a switch device having a contactless communication function.

2. Description of the Related Art Conventionally, an electronic key system is well known in which an electronic key and an in-vehicle device automatically communicate wirelessly to perform ID authentication. A vehicle equipped with an electronic key system is provided with a switch device operated to switch the power supply state of the vehicle. The switch device switches the power supply state of the vehicle to, for example, IG off, ACC on, IG on, and engine start states by being operated in a situation where ID collation by the electronic key system is established.

An electronic key is typically powered by a battery within the electronic key to perform wireless communication with the vehicle. However, when the battery of the electronic key runs out, wireless communication becomes impossible, and the ID verification by the electronic key system cannot be executed. Therefore, as an alternative to the electronic key system, the vehicle is equipped with an immobilizer system that performs non-contact communication while supplying power to the electronic key using driving radio waves even if the electronic key has run out of battery.

The switch device described in Patent Document 1 is provided with a coil antenna for non-contact communication in an immobilizer system. The electronic key is provided with an electronic tag that transmits authentication information by electric power induced by the drive radio wave when the drive radio wave is received. When the drive radio wave is being transmitted from the coil antenna, the authentication information is transmitted from the electronic tag by holding the electronic key close to the coil antenna. When the coil antenna receives the authentication information from the electronic tag, the immobilizer system is authenticated based on the authentication information. Then, based on the authentication result, switching of the power state by operating the switch device is permitted.

Japanese Patent Application Laid-Open No. 2004-314806

In recent years, it has been considered that key information is stored in a terminal such as a smartphone owned by a user, and the vehicle can be operated through authentication of the key information through short-range wireless communication between the terminal and the vehicle. Even when such a terminal is used as a vehicle key, a backup terminal is required when the battery of the terminal runs out, like an electronic tag for an electronic key system. As a countermeasure, it is assumed that other electronic tags such as non-contact type IC cards are used.

However, if the electronic key and the IC card have different communication frequency bands for contactless communication, the switch device may require two coil antennas. In this case, there is a concern that securing the mounting space for the coil antenna will increase the size of the switch device.

An object of the present invention is to provide a switching device that enables contactless communication in two different frequency bands while suppressing an increase in physical size.

A switch device for solving the above problems is capable of first non-contact communication at a predetermined frequency with a switch unit operated when operating an operation target and an electronic tag, and the communication result of the first non-contact communication is is one condition for activating the object to be operated, a first antenna provided in the switch unit, and an electronic tag different from the electronic tag provided in the switch unit together with the first antenna, a second antenna provided to communicate with the other electronic tag by second contactless communication having a frequency different from that of the first contactless communication so as to enable actuation of the operation target; At least one of the first antenna and the second antenna is provided in the operation portion of the switch unit.

The switch device of the present invention enables contactless communication in two different frequency bands while suppressing an increase in physical size.

FIG. 2 is a block diagram showing the configuration of a switch device provided in the authentication system; FIG. 3 is a perspective view showing the appearance of the switch unit; Schematic cross-sectional view of a switch unit. Explanatory drawing of 1st non-contact communication. Explanatory drawing of 2nd non-contact communication. Operation diagram of the switch unit.

An embodiment of the switch device will be described below with reference to the drawings.
As shown in FIG. 1, a vehicle 1 is provided with an authentication system 4 that permits operation of an operation target 3 through short-range wireless communication with a terminal 2 owned by a user. The terminal 2 is, for example, a high-performance mobile phone, a so-called smart phone. The authentication system 4 determines whether the terminal 2 registered as a vehicle key is correct or not. Further, the authentication system 4 of the present embodiment determines whether or not the vehicle-mounted device is operable through wireless collation communication with the electronic key 5, in addition to confirming whether the terminal 2 is correct or not using short-range wireless communication.

The vehicle 1 includes a verification ECU (Electronic Control Unit) 6 that authenticates and verifies the terminal 2 and the electronic key 5 , and an engine ECU 7 that controls an engine 8 as an operation target 3 . The verification ECU 6 and the engine ECU 7 are connected to each other.

The vehicle 1 includes a short-range wireless communication unit 9 that performs short-range wireless communication with the terminal 2 . Near-field wireless communication is, for example, Bluetooth (registered trademark) communication. The short-range wireless communication unit 9 of the present embodiment performs BLE (Bluetooth Low Energy) communication with the terminal 2 . In BLE communication, a BLE communication connection is established by a master responding to an advertising packet from a slave. In the BLE communication of this embodiment, the terminal 2 is the master and the vehicle 1 is the slave. For example, the verification ECU 6 and the terminal 2 are paired by transmitting identification information such as a device address used for short-range wireless communication to each other. Communication connection processing is automatically executed between the verification ECU 6 and the terminal 2 for which the pairing setting has been completed.

The vehicle 1 includes a verification communication unit 10 that performs wireless verification communication with the electronic key 5 . The verification communication unit 10 transmits radio waves in the LF (Low Frequency) band and receives radio waves in the UHF (Ultra High Frequency) band.

For example, the terminal 2 performs ID verification processing by short-range wireless communication with the vehicle 1 using an application downloaded through network communication. Key information registered in the terminal 2 is stored in the memory 21 of the terminal 2 . The terminal 2 acquires key information through network communication, for example, when it is registered as a vehicle key. The key information is preferably a one-time key or the like, for example. As a result, the terminal 2 can perform various processes such as ID collation with the vehicle 1 , locking/unlocking operation of the vehicle door, and starting operation of the engine 8 .

For example, when vehicle key registration of the terminal 2 is completed and BLE communication connection is established with the terminal 2 , the verification ECU 6 verifies the key information with the terminal 2 . When the verification ECU 6 confirms that the authentication of the key information is successful, the verification ECU 6 determines that the ID verification is successful. Then, the operation of the operation target 3 is permitted on the condition that the ID verification by the verification ECU 6 is successful.

A unique electronic key ID and key unique key (not shown) are registered in the electronic key 5 . The electronic key 5 executes verification communication by receiving radio waves in the LF band and transmitting radio waves in the UHF band in response. The collation ECU 6 performs, for example, electronic key ID collation and cryptographic authentication using a unique key through collation communication. The collation ECU 6 permits the operation of the operation target 3 when the collation and authentication are established through the collation communication.

The vehicle 1 has a switch device 30 that manages the operation of the operation target 3 . The vehicle 1 includes a switch unit 31 that is operated when operating the operation target 3 . The switch unit 31 is provided with an operation detection section 32 that detects an operation by the user. The operation detection unit 32 outputs an operation signal to the verification ECU 6, for example, when an operation is detected. The collation ECU 6 switches the power supply state of the vehicle 1 based on the input operation signal under one condition that the authentication of the key information has been established. The vehicle power supply is switched to, for example, IG off, ACC on, IG on, or engine start.

The vehicle 1 is provided with an immobilizer system 40 that performs ID verification through contactless communication. The immobilizer system 40 replaces ID verification by communication when near-field wireless communication by the terminal 2 and verification communication by the electronic key 5 cannot be executed due to battery exhaustion of the terminal 2 and the electronic key 5 or the influence of noise. is provided in the vehicle 1 as.

The vehicle 1 is provided with a first antenna 33 that performs first contactless communication with the electronic tag 41, and a second antenna 34 that performs second contactless communication with another electronic tag 42 different from the electronic tag 41. there is The first antenna 33 and the second antenna 34 are provided in the switch unit 31 . The communication results of the first non-contact communication and the second non-contact communication are one condition for operating the vehicle power source by the switch device 30 . Non-contact communication is, for example, RFID (Radio Frequency IDentification) communication.

The electronic tag 41 that performs first contactless communication with the first antenna 33 is, for example, a transponder 50 provided on the electronic key 5 . The transponder 50 is, for example, a unit of an IC (not shown) and a coil antenna. In the transponder 50, a transponder ID used for ID collation is written and saved.

Another electronic tag 42 that performs second contactless communication with the second antenna 34 is an IC card 60, for example. The IC card 60 is provided with an IC card control section 61 that controls the operation of the IC card 60 and a communication section 62 that performs contactless communication. In the IC card control unit 61, a card ID used for ID collation through the second contactless communication is written and saved. The IC card 60 is carried by a user who intends to operate the operation target 3 using the terminal 2, for example.

In the case of this embodiment, the first non-contact communication is RFID standard communication for transmitting and receiving low-frequency radio waves. In the first contactless communication, for example, LF band radio waves are transmitted and received. Further, the second non-contact communication is communication of a standard for transmitting and receiving radio waves of frequencies in the megahertz band. The second non-contact communication is, for example, NFC (Near Field Communication) standard communication using radio waves in the HF (High Frequency) band. The first non-contact communication and the second non-contact communication are of a passive type in which the transponder 50 and the IC card 60 are driven by driving radio waves transmitted from the first antenna 33 and the second antenna 34, respectively. Although the transponder 50 can communicate in the LF band, it cannot communicate in the HF band. Also, although the IC card 60 can communicate in the HF band, it cannot communicate in the LF band.

The verification ECU 6 includes a communication control section 11 that controls the first antenna 33 and the second antenna 34 . Also, the memory 12 of the verification ECU 6 stores a transponder ID and a card ID. The communication control unit 11 operates the first antenna 33 and the second antenna 34 at different timings to perform communication. The communication control unit 11 acquires the transponder ID via the first antenna 33 when the first contactless communication is performed between the first antenna 33 and the transponder 50 . Further, the communication control unit 11 acquires the card ID via the second antenna 34 when the second contactless communication is performed between the second antenna 34 and the IC card 60 . The collation ECU 6 performs ID collation of the immobilizer system 40 using the acquired transponder ID and card ID. The collation ECU 6 permits switching of the vehicle power supply by the switch device 30 when the ID collation is established.

As shown in FIGS. 2 and 3, the switch unit 31 includes an operating portion 35 that receives an operation, and a housing 36 that movably holds the operating portion 35 . The housing 36 has, for example, a cylindrical shape with an axis L extending in the depth direction. The operating portion 35 is provided on the axis L and is provided so as to be able to move back and forth in the depth direction with respect to the housing 36 . The operation portion 35 has an operation surface 35a exposed from the housing 36 on one side in the depth direction. Hereinafter, in the depth direction of the switch unit 31, the side on which the operation surface 35a side of the operation portion 35 is provided is the front side, and the opposite side is the back side.

The housing 36 includes a cylindrical portion 36a provided so as to surround the operation portion 35, a bezel 36b annularly formed on the front side of the cylindrical portion 36a, and a base having a square cross section extending to the rear side of the cylindrical portion 36a. and a portion 36c.

A substrate 37 is accommodated inside the root portion 36c. The substrate 37 is fixed to the base portion 36c. The substrate 37 is connected to the verification ECU 6 via a communication line 38 connected to a connector portion 37a provided on the rear surface thereof.

The operating portion 35 is biased toward the front side by, for example, a biasing member (not shown). When the operating portion 35 is pushed backward, it is pushed into the housing 36 against the biasing force of the biasing member. Further, when the pressing operation is released, the operating portion 35 returns to the initial position on the front side by the biasing force of the biasing member. That is, the switch unit 31 is a push momentary type switch that is operated by pressing the operation portion 35 .

The operation detection unit 32 is arranged on the front side of the board 37 facing the operation unit 35 . The operation detectors 32 are, for example, tact switches, and two of them are provided on the board 37 . The operating portion 35 is provided with an extending portion 35 b extending toward the substrate 37 toward the rear side. A rear end surface of the extension portion 35 b faces the operation detection portion 32 . When the operation unit 35 is pressed and moved to the rear side in the depth direction, the operation detection unit 32 is pushed by the extension portion 35b. Thereby, the pressing operation is detected. The operation detection unit 32 outputs an operation signal when a pressing operation is detected.

An operation surface 35a of the operation unit 35 is provided with a display unit 35c that indicates the functions of the switch unit 31, for example. The display unit 35c is configured to be lit by being illuminated with light from the rear side, for example. The operation unit 35 is configured such that light from illumination (not shown) provided on the substrate 37, for example, strikes the display unit 35c. In the case of this embodiment, the operation section 35 is formed in a cylindrical shape so as to have a space between the display section 35c and the substrate 37. As shown in FIG.

In the case of this embodiment, the first antenna 33 is provided on the cylindrical portion 36 a of the housing 36 . A second antenna 34 is provided on the operation unit 35 . The first antenna 33 and the second antenna 34 are, for example, wire-wound antennas in which an antenna wire is wound multiple times. The first antenna 33 and the second antenna 34 are annularly wound around the axis L. As shown in FIG. The number of turns of the first antenna 33 and the second antenna 34 is set according to each communication frequency, for example. Moreover, it is preferable that the first antenna 33 and the second antenna 34 have different numbers of turns. In addition, each antenna is shown typically in the figure.

In the switch unit 31, the first antenna 33 and the second antenna 34 are preferably arranged in a separated positional relationship so as to suppress mutual influence on communication characteristics. In the case of this embodiment, the first antenna 33 and the second antenna 34 are spaced apart in the depth direction of the switch unit 31 . The second antenna 34 is wound around the end on the front side of the operation portion 35 and is positioned closer to the front than the first antenna 33 . Further, the antenna diameters of the first antenna 33 and the second antenna 34 are different. That is, the first antenna 33 and the second antenna 34 are separated in the depth direction and in the radial direction of the axis L. As shown in FIG.

The first antenna 33 and the second antenna 34 of this embodiment are connected to the substrate 37 . A wiring 39 a connecting the first antenna 33 and the substrate 37 passes through the outer surface side of the housing 36 from the first antenna 33 , for example. It enters the interior of the housing 36 at the root portion 36c and is connected to the substrate 37. As shown in FIG.

An electrical connection portion 70 is provided in the housing 36 to connect the second antenna 34 , which moves together with the operation portion 35 , to the substrate 37 . The electrical connection portion 70 of this embodiment is a sliding contact. The electrical connection portion 70 is provided on the operation portion 35 and includes a movable side contact 71 connected to the second antenna 34 and a fixed side contact 72 provided on the housing 36 side. The fixed contact 72 is connected to the substrate 37 by a wiring 39b passing through the housing 36. As shown in FIG. The movable contact 71 advances and retreats integrally with the operating portion 35 . The electrical connection portion 70 connects the second antenna 34 and the substrate 37 by closing the movable side contact 71 and the fixed side contact 72 at least when the operation portion 35 is in the initial position before operation.

The communication control unit 11 of the collation ECU 6 supplies power to the first antenna 33 and the second antenna 34 via the substrate 37 to generate radio waves around each antenna. The first antenna 33 and the second antenna 34 generate radio waves based on signals generated by circuits on the substrate 37, for example. Signals received by the first antenna 33 and the second antenna 34 are demodulated by a circuit on the substrate 37, for example. Further, the communication control unit 11 controls the first antenna 33 and the second antenna 34 so as to perform communication at mutually different timings. For example, the communication control unit 11 causes the first antenna 33 and the second antenna 34 to alternately transmit driving radio waves at different timings.

The operation of this embodiment will be described below.
As shown in FIGS. 4 and 5, the verification ECU 6 outputs an actuation signal A1 as an actuation command to the first antenna 33 and an actuation signal A2 as an actuation command to the second antenna 34 by the communication control unit 11. Output. The communication control unit 11 outputs actuation signals A1 and A2, for example, when a predetermined condition is satisfied. Predetermined conditions include, for example, detecting that the user is riding in the vehicle, depressing the brake pedal of the vehicle, and not verifying the IDs of the terminal 2 and the electronic key 5 . Further, the communication control unit 11 repeatedly and alternately outputs the actuation signal A1 and the actuation signal A2.

As shown in FIG. 4 , the first antenna 33 transmits an LF-band drive radio wave B1 based on an actuation signal A1 from the verification ECU 6 . The first antenna 33 performs first non-contact communication with the transponder 50 when the electronic key 5 is arranged in the communication area of the drive radio wave B1 near the switch unit 31 . At this time, the user places the electronic key 5 in the communication area by holding it in front of the switch unit 31, for example. In the first contactless communication, the transponder 50 uses the driving radio wave B1 as a power source and transmits a response signal C1 including its own transponder ID. The response signal C<b>1 is output to the verification ECU 6 via the first antenna 33 .

As shown in FIG. 5, the second antenna 34 transmits driving radio waves B2 in the HF band based on the actuation signal A2 from the verification ECU 6. As shown in FIG. The second antenna 34 performs second contactless communication with the IC card control section 61 when the IC card 60 is placed in the communication area of the drive radio wave B2 near the switch unit 31 . At this time, the user places the IC card 60 in the communication area by holding it in front of the switch unit 31, for example. In the second non-contact communication, the IC card control section 61 uses the driving radio wave B2 as a power source and transmits a response signal C2 including its own card ID. The response signal C<b>2 is output to the verification ECU 6 via the second antenna 34 .

When receiving the response signal C<b>1 , the verification ECU 6 checks whether the transponder ID included in the response signal C<b>1 matches the transponder ID stored in the memory 12 . The collation ECU 6 determines that the ID collation is established when the transponder IDs match. Further, when receiving the response signal C2, the collation ECU 6 confirms whether the card ID included in this and the card ID stored in the memory 12 match. The collation ECU 6 determines that ID collation has been established when these card IDs match.

As shown in FIG. 6, when the operating portion 35 is pushed down, it is pushed into the housing 36 against the biasing force of the biasing member (not shown), and is moved to the rear side and placed in the post-operation position. . At this time, the operation detection unit 32 detects the pressing operation by being pushed by the extension portion 35 b of the operation unit 35 and outputs an operation signal S to the collation ECU 6 . The collation ECU 6 switches the vehicle power supply when the operation signal S is input on the condition that the ID collation is established.

The electrical connection portion 70 is in a state where the movable side contact 71 and the fixed side contact 72 are open when the operation portion 35 is in the post-operation position. That is, the connection between the second antenna 34 and the substrate 37 is cut. When the operation of the operation portion 35 is released and the electric connection portion 70 returns to the initial position on the front side by the biasing member or the like, the movable side contact 71 and the fixed side contact 72 are closed again (see FIG. 3). situation). Here, assuming that the operation unit 35 is at the initial position before the operation when non-contact communication is performed, the connection between the second antenna 34 and the substrate 37 is established at the initial position when the non-contact communication is performed. can be ensured. In addition, if the configuration is such that the second antenna 34 and the substrate 37 are connected only at the initial position, in order to maintain the connection at the position after the operation, the fixed side contact 72 is extended in comparison with the configuration. Therefore, the structure of the electrical connection portion 70 can be simplified. In addition, in the case of this embodiment, since the electrical connection portion 70 has the contact structure of the movable side contact 71 and the fixed side contact 72, the operating portion 35 is more likely to be connected than the case where the second antenna 34 and the substrate 37 are connected by a cable or the like. It can be difficult to interfere with the operation of

As described above, the first antenna 33 and the second antenna 34 provided in the same switch unit 31 can perform the first contactless communication and the second contactless communication with mutually different frequencies. When the user uses the electronic key 5, for example, even if the battery of the electronic key 5 runs out, the transponder 50 can allow the operation of the vehicle power supply. Further, for example, when the terminal 2 is used to operate the vehicle, and the user does not have the electronic key 5, the IC card 60 can be used to allow the operation of the vehicle power source. .

In the switch unit 31 , the first antenna 33 is provided on the housing 36 . The second antenna 34 is provided on the operating portion 35 arranged inside the housing 36 . Accordingly, by arranging the antenna on the member on the inner side of the switch unit 31, it is possible to suppress an increase in size. In addition, by providing the first antenna 33 and the second antenna 34 on different members in the switch unit 31, the degree of freedom in their arrangement can be improved.

By the way, the communication characteristics of the first antenna 33 and the second antenna 34 are affected by surrounding metal materials. The communication characteristics include, for example, the communication distance, signal strength, noise level, etc. of radio waves transmitted from each antenna. The communication characteristics of the first antenna 33 and the second antenna 34 tend to deteriorate as the distance to other metal materials decreases. Therefore, when the distance between the first antenna 33 and the second antenna 34 is short, there is a concern that they affect each other's communication characteristics and deteriorate the communication characteristics.

In the case of this embodiment, the first antenna 33 and the second antenna 34 are arranged in the switch unit 31 in a positional relationship separated in the depth direction. In addition, the first antenna 33 and the second antenna 34 are arranged in a positional relationship apart from each other in the radial direction of the axis L due to their different winding diameters. As a result, the first antenna 33 and the second antenna 34 can suppress the influence on each other's communication characteristics.

Also, the first antenna 33 and the second antenna 34 perform communication at mutually different timings by the communication control unit 11 . Therefore, radio waves transmitted from each antenna do not interfere with each other. As a result, the influence on communication characteristics can be suppressed.

The effects of this embodiment will be described below.
(1) The switch device 30 includes a switch unit 31 that is operated when the operation target 3 is operated. The switch device 30 has a transponder 50 of the electronic key 5 and a first antenna 33 capable of first contactless communication at a predetermined frequency, and an IC card 60 through a second contactless communication at a frequency different from the first contactless communication. and a second antenna 34 with which it communicates. The communication results of the first contactless communication and the second contactless communication are one condition for operating the operation target 3 . Both the first antenna 33 and the second antenna 34 are provided in the switch unit 31 . At least one of the first antenna 33 and the second antenna 34 is provided in the operation section 35 of the switch unit 31 . According to this configuration, it is possible to suppress an increase in the physical size by providing the antenna in the operating section 35 that is normally provided inside the housing 36 that is a housing. Therefore, it is possible to perform non-contact communication in two different frequency bands while suppressing an increase in physique.

(2) The switch unit 31 includes an operating portion 35 and a housing 36 to which the operating portion 35 is movably attached. The first antenna 33 is provided on the housing 36 . A second antenna 34 is provided on the operation unit 35 . According to this configuration, by disposing the first antenna 33 and the second antenna 34 on different members in the switch unit 31, the degree of freedom in their arrangement can be improved.

(3) The switch device 30 includes an electrical connection section 70 that connects the second antenna 34 provided on the operation section 35 to the substrate 37 of the switch unit 31 . The electrical connection portion 70 is provided to connect the second antenna 34 to the substrate 37 when the operation portion 35 is at least in the initial position before operation. According to this configuration, the second antenna 34 is electrically connected to the substrate 37 at the initial position, and the second contactless communication can be performed.

(4) The electrical connection portion 70 is a sliding contact provided on the housing 36 of the switch unit 31 . The electrical connection portion 70 includes a movable side contact 71 connected to the second antenna 34 provided in the operation portion 35 and a fixed side contact 72 connected to the substrate 37 provided in the housing 36 of the switch unit 31. . According to this configuration, electrical connection of the second antenna 34 can be ensured by the contact.

(5) In the switch unit 31, the first antenna 33 and the second antenna 34 are arranged in a positional relationship separated from each other so as to suppress their mutual influence on the communication characteristics. According to this configuration, it is possible to easily establish the first contactless communication and the second contactless communication. This can contribute to improving user convenience.

(6) The first antenna 33 and the second antenna 34 are spaced apart in the depth direction of the switch unit 31 . According to this configuration, it is possible to suppress the influence on communication characteristics by separating in the depth direction. This can contribute to improving user convenience.

(7) The first antenna 33 and the second antenna 34 are provided annularly along the circumferential direction of the operation portion 35 and formed to have different antenna diameters. According to this configuration, it is possible to suppress the influence on the communication characteristics by arranging the operation unit 35 in a positional relationship separated in the radial direction. This can contribute to improving user convenience.

(8) The first non-contact communication is standard communication for transmitting and receiving low-frequency radio waves. The second non-contact communication is standardized communication for transmitting and receiving radio waves in the megahertz band. The first non-contact communication and the second non-contact communication are of a passive type in which the transponder 50 and the IC card 60 are driven by driving radio waves transmitted from the first antenna 33 and the second antenna 34, respectively. This configuration eliminates the need for a battery on the electronic tag side. This can contribute to improving user convenience.

(9) The first antenna 33 and the second antenna 34 perform communication at different timings. According to this configuration, simultaneous communications do not interfere with each other's communications. That is, it is possible to suppress the influence on communication characteristics.

(10) The switch unit 31 is a push switch that switches the operation state of the operation target 3 by pressing the operation unit 35 . According to this configuration, the push switch having the non-contact communication function can communicate with two different frequencies.

In addition, this embodiment can be changed and implemented as follows. This embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.
- The 2nd antenna 34 may be provided in the position of the back side rather than the 1st antenna 33, and may be provided with a large antenna diameter. For example, the second antenna 34 may be provided on the cylindrical portion 36 a and the first antenna 33 may be provided on the operation portion 35 .

- The first antenna 33 may be provided on the inner surface side of the housing 36 . Further, the first antenna 33 may be provided on the bezel 36b, may be provided on the cylindrical portion 36a, or may be provided on the root portion 36c.

- Both the first antenna 33 and the second antenna 34 may be provided in the operation unit 35 .
- The 1st antenna 33 and the 2nd antenna 34 may perform communication at the same timing. That is, it is not limited to executing communications at mutually different timings.

- The electrical connection portion 70 is not limited to a sliding contact, and may be a variety of contacts or wiring such as a cable.
The electrical connection unit 70 may connect the second antenna 34 and the substrate 37 when the operation unit 35 is in the initial position before operation, or may be connected when the operation unit 35 is in the position after operation. may be continuously connected from the initial position before the operation to the position after the operation, or a combination thereof.

- The first antenna 33 and the second antenna 34 may be directly connected to the outside without the substrate 37 interposed therebetween.
- The frequencies and standards of the first contactless communication and the second contactless communication are not particularly limited. For example, the first contactless communication and the second contactless communication may be in the LF band, the HF band, or the UHF band. Alternatively, an electromagnetic induction method, an electromagnetic coupling method, or a radio wave method may be used.

・The first non-contact communication and the second non-contact communication are not limited to the passive type in which power is transmitted from the antenna side, but the active type in which communication is performed using batteries provided in the electronic tag 41 and the other electronic tag 42 as power sources. may be

The first antenna 33 and the second antenna 34 may be wound wire antennas wound with antenna wires, loop antennas provided by etching or printing, or dipole antennas.

- The electronic tag 41 is not limited to the transponder 50, and various RFID tags can be used.
- The other electronic tag 42 is not limited to the IC card 60, and various RFID tags can be used.

- The switch unit 31 is not limited to a push switch, and may be a dial type switch in which the operation part 35 rotates around the axis L.
- The switch device 30 is not limited to being applied to the immobilizer system 40 of the vehicle 1, and can be applied to various devices. Moreover, it is not limited to the one that performs verification as an alternative to the authentication system 4 .

- The operation target 3 is not limited to this embodiment, and can be applied to various devices, buildings, and devices such as a door of a house.

DESCRIPTION OF SYMBOLS 1... Vehicle, 2... Terminal, 3... Operation object, 4... Authentication system, 5... Electronic key, 6... Verification ECU, 30... Switch device, 31... Switch unit, 32... Operation detection part, 33... First antenna, DESCRIPTION OF SYMBOLS 34... 2nd antenna, 35... Operation part, 36... Housing, 37... Substrate, 40... Immobilizer system, 41... Electronic tag, 42... Electronic tag, 50... Transponder, 60... IC card, 70... Electrical connection part, 71 ... movable side contact, 72 ... fixed side contact.

Claims (10)

a switch unit operated when operating an operation target;
A first antenna provided in the switch unit so that a first contactless communication with an electronic tag is possible at a predetermined frequency, and a communication result of the first contactless communication is one condition for operating the operation target. and,
A second contactless communication device provided in the switch unit together with the first antenna and having a frequency different from that of the first contactless communication so that the operation target can be operated even with another electronic tag different from the electronic tag. a second antenna provided to communicate with the other electronic tag in communication;
At least one of the first antenna and the second antenna is a switch device provided in an operation portion of the switch unit. The switch unit includes the operation portion and a housing to which the operation portion is movably attached,
2. The switch device according to claim 1, wherein one of said first antenna and said second antenna is provided on said operating portion, and the other is provided on said housing. an electrical connection unit that connects one of the first antenna and the second antenna provided in the operation unit to a substrate of the switch unit;
3. The switch device according to claim 1, wherein the electrical connection portion is provided to connect the antenna to the substrate when the operation portion is at least in the initial position before operation. The electrical connection portion is a contact provided in the housing of the switch unit, and is connected to a movable side contact connected to an antenna provided in the operation portion and the board provided in the housing of the switch unit. 4. The switch device according to claim 3, further comprising fixed side contacts. The first antenna and the second antenna are arranged in the switch unit in a positional relationship separated from each other so as to suppress mutual influence on communication characteristics. A switch device according to any one of the preceding claims. The switch device according to claim 5, wherein the first antenna and the second antenna are spaced apart in the depth direction of the switch unit. 7. The switch device according to claim 5, wherein the first antenna and the second antenna are provided in an annular shape along the circumferential direction of the operation portion, and are formed to have antenna diameters different from each other. The first non-contact communication is a standard communication for transmitting and receiving low-frequency radio waves,
The second non-contact communication is a standard communication for transmitting and receiving radio waves with a frequency in the megahertz band,
The first non-contact communication and the second non-contact communication are of a passive type in which the electronic tag and the other electronic tag are driven by a driving radio wave transmitted from an antenna side as a power source. The switch device according to any one of the items. The switch device according to any one of claims 1 to 8, wherein the first antenna and the second antenna perform communication at mutually different timings. The switch device according to any one of claims 1 to 9, wherein the switch unit is a push switch that switches an operating state of the operation target by pressing the operation portion.

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