CN116071848A - Door lock device - Google Patents

Abstract

A door lock device is provided with a plurality of electrodes provided in an operation unit, an electrostatic detection module, and a control device. The electrostatic detection module detects a user operation, which is an operation in which the body of the user touches or approaches the operation section, from a change in electrostatic capacitance in one or more of the plurality of electrodes to generate an operation detection notification. The control device controls at least one of locking and unlocking of the door based on a detection result of the electrostatic detection module. The wiring of the static electricity detection module that transmits the operation detection notification to the control device is constituted by only one line. The static electricity detection module transmits the operation detection notification to the control device via the wiring, regardless of which electrode detects the user operation.

Description

door lock device

technical field

The present invention relates to a door lock device that controls the operation of a door lock based on changes in electrostatic capacitance of electrodes.

Background technique

Conventionally, many vehicles are equipped with an intelligent system that locks or unlocks the doors when the outside door handle of the door is touched by a finger or hand when the key verification based on wireless communication is established (see Japanese Patent Application Laid-Open No. 2010-216091). In this intelligent system, an electrostatic capacitance sensor is arranged on the door handle outside the vehicle. When a touch operation is detected by the electrostatic capacitance sensor for locking, the door is locked. When a touch operation is detected by the electrostatic capacitance sensor for unlocking, the door is locked. , the door is unlocked.

Contents of the invention

The problem to be solved by the invention

However, such a capacitive sensor is provided with an IC (Integrated Circuit: Integrated Circuit) for determining the presence or absence of a touch operation based on changes in the capacitance of electrodes. The IC outputs the detection result of the touch operation to the ECU that locks or unlocks the vehicle doors via wiring in the vehicle. For example, the IC outputs a detection signal of a touch operation detected based on a change in capacitance of an electrode for locking to a vehicle ECU (Electronic Control Unit: Electronic Control Unit) via a wiring for locking. In addition, the IC outputs a detection signal of a touch operation detected based on a change in capacitance of the electrode for unlocking to the vehicle ECU via the wiring for unlocking. The vehicle ECU executes locking or unlocking of the vehicle doors based on each detection signal input from the IC via wiring.

In this way, when two electrodes for locking and unlocking are provided in the exterior door handle, wiring for connecting the IC of the exterior door handle and the vehicle ECU needs to be used for locking and unlocking respectively. Therefore, wiring processing may become cumbersome, or costs related to components may increase. Therefore, there is a need to reduce the number of wiring lines as much as possible.

Solution to the problem

A door lock device according to one aspect includes: a plurality of electrodes provided on an operation unit; and a static electricity detection module configured to detect a user operation based on a change in electrostatic capacity of one or more of the plurality of electrodes to generate an operation detection notification. , the user operation is an operation in which the user's body touches or approaches the operation part; and a control device controls at least one of locking and unlocking of the door based on the detection result of the static electricity detection module. The wiring through which the static electricity detection module transmits the operation detection notification to the control device consists of only one line. The static electricity detection module sends the operation detection notification to the control device via the wiring no matter which electrode detects the user operation.

Invention effect

According to the present invention, the number of wiring lines can be reduced in the door lock device.

Description of drawings

FIG. 1 is a configuration diagram of an entire system including a door lock device according to an embodiment.

Fig. 2 is a schematic diagram of a digital key system.

Fig. 3 is a perspective view of the exterior door handle viewed from the surface side.

Fig. 4 is a perspective view of the exterior door handle viewed from the rear side.

FIG. 5A is an operation diagram when the first electrode is touched, and FIG. 5B is an operation diagram when the second electrode is touched.

Detailed ways

One embodiment of the door lock device will be described below.

[Overall configuration of the system]

As shown in FIG. 1 , a user's utility 1 includes a key system 3 , and the key system 3 authenticates a key 2 carried by the user through wireless communication. The key system 3 permits or executes the operation of the mounted device 4 of the utility 1 based on the authentication result of the key 2 . The key system 3 includes a smart system that performs authentication of the key 2 triggered by communication from the utility 1 . The utility 1 is, for example, a vehicle 5 . The key 2 includes an electronic key mainly having a key function.

In the case of a smart system, the radio wave transmission from the user 1 to the key 2 uses radio waves in the LF (Low Frequency: Low Frequency) band, and the radio wave transmission from the key 2 to the user 1 uses UHF (Ultra High Frequency: Ultra High Frequency) with radio waves. That is, in the case of the smart system, when the key 2 enters the communication area formed by the radio wave of the LF band around the utility 1, the communication of the key 2 based on LF-UHF communication is performed between the utility 1 and the key 2. Authenticated communications.

The key system 3 includes a control device 8 , and the control device 8 performs authentication of the key 2 . The control device 8 is, for example, a verification ECU (Electronic Control Unit) for judging whether the key 2 is correct or not by ID verification. Authentication information Did of the key 2 registered in the utility 1 is registered in a memory (not shown) of the control device 8 . This authentication information Did is also registered in the memory of the key 2 (not shown). The authentication information Did includes, for example, an ID code individually assigned to the key 2 and an encryption key used in encrypted communication when the key 2 is authenticated.

The control device 8 authenticates the key 2 by performing wireless communication with the key 2 via the communication unit 9 . Detailed illustration is omitted, but the communication unit 9 includes, for example, a transmitter unit that transmits radio waves carrying information from the control device 8 (authentication information Did, etc.), and a receiver unit that receives radio waves from the key 2 . In addition, when the utility 1 has an indoor area separated from the outdoor area, the transmitting unit may include an outdoor transmitting unit that transmits radio waves to the outdoor area and an indoor transmitting unit that transmits radio waves to the indoor area. The control device 8 checks the authentication information Did of the key 2 by wireless communication to determine whether the key 2 is correct or not.

The control device 8 is connected to the mounting device 4 via a communication line 10 provided on the utility 1 . Examples of the mounted device 4 include a door lock control device that controls the operation of the door lock 12 that locks and unlocks the door 11 , a steering lock device, an engine control device, and the like. The communication line 10 includes, for example, CAN (Controller Area Network: Controller Area Network) and/or LIN (Local Interconnect Network: Local Area Internet).

In the case of a smart system, the control device 8 periodically transmits radio waves of the LF band from the communication unit 9 to monitor whether or not the key 2 is present. When the key 2 receives the radio wave transmitted from the communication unit 9, it transmits a response with the radio wave of the UHF band. When the communication (smart communication) between the key 2 and the control device 8 is established, the control device 8 performs a verification (smart verification) of confirming the authentication information Did of the key 2 . When the control device 8 authenticates the key 2 based on the authentication information Did, it permits or executes the operation of the onboard device 4 .

The control device 8 permits the locking of the door 11 when the smart check (outdoor smart check) is established based on the authentication information Did returned from the key 2 in response to the radio wave transmitted from the outdoor transmitter of the communication unit 9. or unlock. Therefore, if the authorized key 2 exists in the outdoor area, the operation of locking or unlocking the door lock 12 is permitted. In this way, the control device 8 makes the authentication of the key 2 a condition for permitting the operation of the door lock 12 . Also, the control device 8 permits the switching operation of the vehicle power supply when the smart verification (indoor smart verification) is established based on the authentication information Did returned from the key 2 in response to the radio wave transmitted from the indoor transmitter. Thus, the engine can be started.

As shown in FIG. 2 , the key system 3 includes, for example, a digital key system using a mobile terminal 15 as the key 2 . The mobile terminal 15 may also be, for example, a high-performance mobile phone (multifunction terminal). The digital key system uses the mobile terminal 15 as a private key of the utility 1 by registering the digital key Dk in the mobile terminal 15 .

The digital key Dk may be, for example, a one-time key that is permitted to be used only once or only for a certain period of time. The digital key Dk can also be stored in the mobile terminal 15 in various ways such as downloading from a server, obtaining from a master key (one of the plurality of keys 2 ) wirelessly, or image reading of code information. Alternatively, the digital key Dk may be downloaded to the mobile terminal 15 from an external device in the market, or may be pre-written in the market.

The control device 8 authenticates the mobile terminal 15 through short-range wireless communication. The short-range wireless communication may be either PAN (Personal Area Network: Personal Area Network) communication or near-field wireless communication. Examples of PAN communication include Bluetooth (registered trademark) communication, UWB (Ultra Wide Band: Ultra Wideband) communication, Wi-Fi (registered trademark) communication, and the like. An example of Bluetooth communication is BLE (Bluetooth Low Energy: Bluetooth Low Energy). An example of near field wireless communication is NFC (Near Field Communication) which is a type of RFID.

In the case of the digital key system, the control device 8 periodically transmits a broadcast packet from the communication unit 9 by short-range wireless communication, and monitors the presence or absence of the mobile terminal 15 . When the mobile terminal 15 receives the broadcast packet from the communication unit 9 , it executes scanning processing and sends a connection request to the control device 8 . As a result, the short-range wireless communication between the control device 8 and the mobile terminal 15 shifts to a communication connection state.

The control device 8 executes the authentication of the mobile terminal 15 when it transitions to the communication connection state with the mobile terminal 15 . In the case of this example, the mobile terminal 15 transmits the digital key Dk to the control device 8 by short-range wireless communication. When receiving the digital key Dk from the mobile terminal 15, the control device 8 authenticates the digital key Dk. When the control device 8 can normally decode the digital key Dk and successfully authenticate the digital key Dk, for example, obtain the validity period of the digital key Dk, the session key used in the future short-range wireless communication, and the mobile terminal 15 ID etc. These pieces of information are held in a memory (not shown) of the control device 8 .

When the digital key Dk is authenticated, the control device 8 and the mobile terminal 15 enter an authentication completed state in which authentication is recognized. The authenticated state refers to a state in which both the control device 8 and the mobile terminal 15 know the shared session key and the ID of the mobile terminal 15 . Accordingly, in the case of the vehicle 5 , locking or unlocking of the doors 11 , unlocking of the steering lock device, starting of the engine, and the like can be performed.

[Structure of the door lock device 18]

As shown in FIG. 1 , the key system 3 includes a door lock device 18 that controls locking or unlocking of the door 11 based on user operations on the utility 1 . The door lock device 18 locks or unlocks the door 11 when detecting a user's operation on the utility 1 while the authentication of the key 2 is established. The door lock device 18 implements a so-called smart entry function (registered trademark) that automatically locks or unlocks the door 11 during getting on and off the vehicle without operating the key 2 .

In the smart entry function, for example, the door 11 is locked or unlocked in response to a touch operation of the door handle 19 provided on the door 11 . Locking or unlocking of the door 11 is performed, for example, in response to a predetermined position of the door handle 19 being touched by a finger, or the door handle 19 being held by a hand. The door handle 19 is, for example, an exterior door handle. The door lock device 18 only needs to realize the smart entry function in at least one of the locking and unlocking of the door 11 . In the case of this example, the door lock device 18 realizes the smart entry function in both locking and unlocking of the door 11 .

As shown in FIGS. 3 and 4 , the door lock device 18 includes a plurality of electrodes 21 provided on the operation unit 20 . In this example, the electrode 21 includes a first electrode 22 and a second electrode 23 . Each of the plurality of electrodes 21 may have a different size. In this example, the operation unit 20 is a door handle 19 that is operated when the door 11 is opened and closed.

The operation unit 20 includes a plurality of operation surfaces 24 provided at different positions from each other. In the case of this example, the plurality of operation surfaces 24 include a front surface 19 a and a back surface 19 b constituting the outer surface of the door handle 19 . The plurality of electrodes 21 are respectively arranged on different operation surfaces 24 . In this example, the first electrode 22 is arranged on the front surface 19 a of the door handle 19 , and the second electrode 23 is arranged on the back surface 19 b of the door handle 19 .

The switching operation of locking or unlocking the door lock 12 is an operation of touching the area around the first electrode 22 on the front surface 19 a of the door handle 19 or touching the area around the second electrode 23 on the back surface 19 b of the door handle 19 . That is, locking or unlocking of the door lock 12 is alternately switched based on a touch operation of the front surface 19 a or the back surface 19 b of the door handle 19 .

The door lock device 18 includes an operation detection unit that detects a user's body contact or user operation approaching the operation unit 20 . The operation detection unit may be of a capacitive type, a resistive film type, an ultrasonic type, or an optical type. In FIG. 1 , the door lock device 18 includes a static electricity detection module 27 as an operation detection unit, and the static electricity detection module 27 detects a user operation based on a change in capacitance of one or more electrodes 21 . The electrostatic detection module 27 may also be a single-chip IC (Integrated Circuit). In this example, the static electricity detection module 27 is arranged inside the door handle 19 .

The static electricity detection module 27 includes: a static electricity detection unit 28 that detects a change in capacitance in the electrode 21 ; and a signal processing unit 29 that generates an operation detection notification Sk based on a detection signal of the static electricity detection unit 28 . The static electricity detection unit 28 detects a change in capacitance in each of the first electrode 22 and the second electrode 23 . The signal processing unit 29 generates an operation detection notification Sk for notifying user operation (user operation has been performed) based on the detection signal of the static electricity detection unit 28 .

A wiring 30 is connected between the control device 8 and the static electricity detection module 27 for notifying the control device 8 of the detection result of the static electricity detection module 27 . In the case of this example, the wiring 30 consists of only one line. The wiring 30 may be a patterned wiring provided on the substrate, or may be a single wire.

The signal processing unit 29 (static electricity detection module 27 ) transmits an operation detection notification Sk for notifying the user's operation to the control device 8 via the wiring 30 . The operation detection notification Sk may be a pulse signal Sp1 composed of a combination of a high level and a low level, that is, a voltage signal having a predetermined pulse rectangle (rectangular wave).

The signal processing unit 29 (static electricity detection module 27 ) transmits an operation detection notification Sk to the control device 8 whenever a user operation is detected by any one of the first electrode 22 and the second electrode 23 . The control device 8 controls at least one (both in this example) of locking and unlocking of the door 11 based on the operation detection notification Sk (pulse signal Sp1) received from the static electricity detection module 27 via the wire 30 .

Next, the operation of the door lock device 18 will be described.

As shown in FIG. 5A , when the user switches the locked or unlocked state of the door lock 12 , the user performs a touch operation on the door handle 19 . At this time, the user's touch operation on the door handle 19 may be either a touch operation on the surface 19 a of the door handle 19 or a touch operation on the back surface 19 b of the door handle 19 .

For example, assume that in the unlocked state of the door 11 (door lock 12 ), the user performs a touch operation on a predetermined position on the surface 19 a of the door handle 19 with the tip of a finger or the like. A touch operation on the surface 19 a of the door handle 19 is detected by a change in the capacitance of the first electrode 22 . When the electrostatic detection module 27 detects a change in the electrostatic capacity of the first electrode 22 , it recognizes that a user operation for switching between locking and unlocking the door 11 is performed.

In this case, the signal processing unit 29 transmits an operation detection notification Sk for notifying the user's operation to the control device 8 via the wire 30 . The operation detection notification Sk is, for example, a pulse signal Spl whose high level time width is set to a predetermined width.

When the control device 8 receives the operation detection notification Sk from the static electricity detection module 27 , it permits switching of the door lock 12 on the condition that the authentication of the key 2 is established. At this time, the control device 8 transmits a locking operation request for switching the door lock 12 from the unlocked state to the locked state to the mounting device 4 (door lock control device) via the communication line 10 . Thereby, the door 11 (door lock 12) of the utility 1 can be switched from an unlocked state to a locked state.

In addition, it is assumed that the user touches the surface 19 a of the door handle 19 again after the door 11 is switched to the locked state. When the signal processing unit 29 detects a change in the electrostatic capacitance in the first electrode 22, it retransmits an operation detection notification Sk for notifying that a user operation for switching between locking and unlocking the door 11 has been performed to the control device 8 via the wiring 30. . This operation detection notification Sk is the same signal as the notification sent to the control device 8 when switching from the unlocked state to the unlocked state described above.

When the control device 8 receives the operation detection notification Sk from the static electricity detection module 27 , it permits switching of the door lock 12 on condition that the authentication of the key 2 is established. At this time, the control device 8 transmits an unlock operation request for switching the door lock 12 from the locked state to the unlocked state to the mounting device 4 (door lock control device) via the communication line 10 . Thereby, the door 11 (door lock 12) returns to the unlocked state. In this way, each time a touch operation is detected based on the change in the electrostatic capacitance in the first electrode 22 , locking or unlocking of the door lock 12 is alternately switched.

As shown in FIG. 5B , it is assumed that, for example, the user performs a touch operation while holding the door handle 19 in the unlocked state of the door 11 (door lock 12 ). A touch operation on the back surface 19 b of the door handle 19 is detected by a change in the capacitance of the second electrode 23 . When the electrostatic detection module 27 detects a change in the electrostatic capacitance in the second electrode 23 , it recognizes that the user operation to switch between locking and unlocking the door 11 is performed.

In this case, the signal processing unit 29 transmits an operation detection notification Sk indicating the user's operation to the control device 8 via the wiring 30 . Therefore, the wiring 30 for transmitting the operation detection notification Sk when the second electrode 23 detects the touch operation is the same as the wiring 30 for transmitting the operation detection notification Sk when the first electrode 22 detects the touch operation. In addition, the operation detection notification Sk is the same signal when a touch operation is detected by the first electrode 22 and when a touch operation is detected by the second electrode 23 .

When the control device 8 receives the operation detection notification Sk from the static electricity detection module 27 , it permits switching of the door lock 12 on condition that the authentication of the key 2 is established. At this time, the control device 8 transmits a locking operation request for switching the door lock 12 from the unlocked state to the locked state to the mounting device 4 (door lock control device) via the communication line 10 . Thereby, the door 11 (door lock 12) of the utility 1 can be switched from an unlocked state to a locked state.

In this manner, switching between locking and unlocking can be performed by either a touch operation on the front surface 19 a of the door handle 19 or a touch operation on the back surface 19 b of the door handle 19 . Therefore, whenever a touch operation is detected by any one of the first electrode 22 and the second electrode 23 , the locked or unlocked state of the door lock 12 is alternately switched. Therefore, locking or unlocking of the door lock 12 can be switched regardless of touching either the front surface 19 a or the back surface 19 b of the door handle 19 , so that the convenience of the switching operation of the door lock 12 can be improved.

According to the door lock device 18 of the above-described embodiment, the following effects can be obtained.

(1) The door lock device 18 includes the control device 8 , a plurality of electrodes 21 , and a static electricity detection module 27 . The static electricity detection module 27 detects a user operation according to a change in electrostatic capacitance in any one of the plurality of electrodes 21 , and the user operation is an operation in which the user's body touches or approaches the operation unit 20 . The control device 8 controls at least one of locking and unlocking of the door 11 based on the detection result of the user operation transmitted from the static electricity detection module 27 . The wiring 30 used for transmitting the detection result of the user's operation from the static electricity detection module 27 to the control device 8 is constituted by only one line. Regardless of which electrode 21 detects the user operation, the static electricity detection module 27 transmits an operation detection notification Sk notifying the user operation to the control device 8 via the same wiring 30 .

According to this configuration, when a user operation is detected by any of the plurality of electrodes 21 of the operation unit 20 , an operation detection notification Sk is sent from the static electricity detection module 27 to the control device 8 , and the door 11 is locked or unlocked. Therefore, compared with the case where there is only one site to detect the user's operation, the operation convenience can be improved. In addition, regardless of which electrode 21 detects the user operation, the same operation detection notification Sk is sent from the static electricity detection module 27 to the control device 8 via one wiring 30 . In this way, only one wire 30 is required for transmission of the operation detection notification Sk. Therefore, the number of wires 30 can be kept small.

(2) The control device 8 alternately switches between locking and unlocking every time the operation detection notification Sk is received from the static electricity detection module 27 . According to this configuration, even if the user does not intend to lock or unlock the door 11, the user only needs to operate the same part again, which contributes to the improvement of operational convenience.

(3) The operation unit 20 includes a plurality of operation surfaces 24 arranged at different locations from each other. The plurality of electrodes 21 are respectively arranged on different operation surfaces 24 . According to this configuration, since one input operation is assigned to each operation surface 24 , operation errors are less likely to occur.

(4) The operation unit 20 is the door handle 19 that is operated when the door 11 is opened and closed. According to this configuration, the door lock device 18 can determine whether or not the user has operated the door handle 19 based on the change in the electrostatic capacitance of the electrode 21 . In addition, since the operation detection notification Sk indicating that the user has operated the door handle 19 is output from the door handle 19 , the number of wires 30 included in the components of the door lock device 18 can be kept small.

(5) The plurality of electrodes 21 each have a different size. According to this configuration, any electrode size can be appropriately set for each electrode 21 .

(6) The control device 8 authenticates the door key 2 through wireless communication, and permits the operation of the door lock 12 on the condition that the authentication of the key 2 is established. According to this configuration, when the authorized key 2 is not at hand, the door lock 12 does not operate, so the security of the operation of the door lock 12 can be improved.

[modified example]

It should be noted that the present embodiment can be modified and implemented as follows. This embodiment and the following modified examples can be implemented in combination with each other within a technically non-contradictory range.

The first electrode 22 and the second electrode 23 are not limited to being connected to the static electricity detection module 27 by using different wires (electrical connection wires), but may be connected to the static electricity detection module 27 by a common wire (electrical connection wire).

• The static electricity detection module 27 may detect a user operation based on a change in electrostatic capacity in one or more of the plurality of electrodes 21 . Therefore, the static electricity detection module 27 may determine that a user operation has been performed when a change in the electrostatic capacitance occurs simultaneously in the first electrode 22 and the second electrode 23 .

- The number of electrodes 21 is not limited to two, and may be three or more.

The operation detection notification Sk may be, for example, an operation detection notification that notifies a locking operation or an unlocking operation by a difference in the time width of the high level (or low level) of the pulse signal Sp1. Alternatively, the operation detection notification Sk may be, for example, an operation detection notification that notifies a lock operation or an unlock operation through a data sequence constructed by a combination of a high level and a low level.

- The 1st electrode 22 and the 2nd electrode 23 may be formed in the same size.

· The first electrode 22 and the second electrode 23 may be arranged on the same operation surface 24 .

· The operation unit 20 is not limited to the door handle 19 , and may be any member that the user touches when opening and closing the door 11 .

- The operation unit 20 is not limited to the components of the door 11 . For example, a member other than the constituent elements of the door 11 may be disposed as the operation unit 20 on a wall of a building or the like.

· The door lock device 18 is not limited to a vehicle-mounted device, and may be used in other devices or systems.

The control device 8 and the static electricity detection module 27 may be [1] constituted by one or more processors operating in accordance with a computer program (software), or [2] may be configured by such a processor and a specific device for performing at least a part of various processes. A combination of more than one dedicated hardware circuit such as an application-specific integrated circuit (ASIC). The processor includes a CPU and memories such as RAM and ROM, and the memories store program codes or instructions configured to cause the CPU to execute processing. Memory (computer-readable media) includes all available media that can be accessed by a general purpose or special purpose computer. Alternatively, instead of a computer including the processor described above, a processing circuit constituted by one or more dedicated hardware circuits that execute all the various processes may be used.

- Each of the control device 8 and the static electricity detection module 27 may include an independent processor, or a common processor that shares a part of its functions with other devices or modules. Therefore, the control device 8 and the static electricity detection module 27 may also be configured as independent functional blocks, one functional block, or one or more functional blocks that share some functions with other functional blocks.

- Although this indication was described based on an Example, it should be understood that this indication is not limited to this Example or a structure. The present disclosure also includes various modified examples or modifications within an equivalent range. Furthermore, various combinations or forms, further combinations or forms including only one element, the above or the following also fall within the category or scope of thought of the present disclosure.

Explanation of reference signs

2: key, 3: key system, 8: control device, 11: door, 12: door lock, 19: door handle, 20: operation part, 21: electrode, 22: first electrode, 23: second electrode, 24 : Operation surface, 27: Electrostatic detection module, 30: Wiring, Sk: Operation detection notification, Spl: Pulse signal.

Claims (6)

1. A door lock device is provided with:

a plurality of electrodes provided to the operation unit;

an electrostatic detection module that detects a user operation, which is an operation in which a user's body touches or approaches the operation section, from a change in electrostatic capacitance among one or more of the plurality of electrodes, to generate an operation detection notification; and

a control device based on the detection result of the electrostatic detection module, at least one of locking and unlocking of the door is controlled,

the wiring of the static electricity detection module for transmitting the operation detection notification to the control device is constituted by only one line,

the static electricity detection module transmits the operation detection notification to the control device via the wiring, regardless of which electrode detects the user operation.

2. The door lock apparatus according to claim 1, wherein,

the control device alternately switches locking and unlocking of the door every time the operation detection notification is received from the static electricity detection module.

3. The door-lock apparatus according to claim 1 or claim 2, wherein,

the operation part comprises a plurality of operation surfaces which are mutually arranged at different positions,

the plurality of electrodes are each disposed on a different one of the operation surfaces.

4. The door-lock apparatus according to claim 1 or claim 2, wherein,

the operating portion is a door handle that operates when the door is opened and closed.

5. The door-lock apparatus according to claim 1 or claim 2, wherein,

the plurality of electrodes are formed in respective different sizes.

6. The door-lock apparatus according to claim 1 or claim 2, wherein,

the control device authenticates a key of the door by wireless communication, and permits operation of the door lock on condition that authentication of the key is established.

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