CN116071847A

CN116071847A - Door lock device

Info

Publication number: CN116071847A
Application number: CN202211303922.0A
Authority: CN
Inventors: 福原慎吾; 山口翔吾
Original assignee: Tokai Rika Co Ltd
Current assignee: Tokai Rika Co Ltd
Priority date: 2021-10-29
Filing date: 2022-10-24
Publication date: 2023-05-05
Also published as: JP2023066910A

Abstract

A user operation of a door handle (19) when a door lock (12) is locked or unlocked is detected by an electrode (21). An electrostatic detection module (27) inputs the electrostatic capacitance of the electrode (21), and detects a user operation from the change in the electrostatic capacitance. The wiring (30) for inputting the detection result from the electrostatic detection module (27) to the control device (8) is composed of only one line. The static electricity detection module (27) outputs an operation detection notification (Sk) corresponding to the detection result of the user operation to the control device (8) via a wiring (30). The control device (8) controls the operation of at least one of locking and unlocking of the door (11) based on the operation detection notification (Sk) inputted from the electrostatic detection module (27).

Description

Door lock device

Technical Field

The present invention relates to a door lock device that controls an operation of a door lock based on a change in electrostatic capacitance of an electrode.

Background

Conventionally, the following intelligent systems have been mounted in many vehicles: when the key verification by wireless communication is established, the door is locked or unlocked when the door handle outside the vehicle door is touched by a finger, a hand, or the like (see japanese patent application laid-open No. 2010-216091). In such an intelligent system, an electrostatic capacity sensor is disposed on an outside door handle. When a touch operation is detected by the capacitive sensor for locking, the door is locked, and when a touch operation is detected by the capacitive sensor for unlocking, the door is unlocked.

Disclosure of Invention

However, this type of capacitance sensor is provided with an IC (Integrated Circuit: integrated circuit) for determining the presence or absence of a touch operation from a change in capacitance of an electrode. The IC outputs the detection result of the touch operation to an ECU (Electronic Control Unit: electronic control unit) that performs locking or unlocking of the door through wiring of the vehicle body. For example, the IC outputs a detection signal of a touch operation detected based on a change in electrostatic capacitance of the locking electrode to the ECU of the vehicle body through the locking wiring. The IC outputs a detection signal of a touch operation detected based on a change in capacitance of the unlocking electrode to the ECU of the vehicle body through the unlocking wiring. The ECU performs locking or unlocking of the vehicle door based on respective detection signals input from the IC through wiring.

In this way, when the two electrodes for locking and unlocking are provided on the outside door handle, a plurality of wirings for connecting the IC of the outside door handle and the ECU of the vehicle body, that is, the wiring for locking and the wiring for unlocking are required. Therefore, there is a possibility that the processing of wiring becomes troublesome or the cost of the component increases.

A door lock device according to an aspect of the present invention includes: an electrode that detects a user operation of bringing a body of a user into contact with or close to an operation section; an electrostatic detection module that inputs an electrostatic capacitance of the electrode and detects the user operation by an electrostatic capacitance change; and a control device for controlling at least one of locking and unlocking of the door according to the detection result of the electrostatic detection module. The wiring for the electrostatic detection module to output the detection result to the control device is constituted by only one line. The static electricity detection module outputs an operation detection notification corresponding to a detection result of the user operation to the control device via the wiring.

Effects of the invention

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

Drawings

Fig. 1 is a configuration diagram of the whole 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 door handle outside the vehicle as seen from the front surface side.

Fig. 4 is a perspective view of the door handle outside the vehicle as seen from the rear surface side.

Fig. 5 is a schematic diagram of a locking operation.

Fig. 6 is a waveform diagram of an operation detection notification at the time of a lock operation.

Fig. 7 is a schematic diagram of an unlocking operation.

Fig. 8 is a waveform diagram of an operation detection notification at the time of an unlocking operation.

Detailed Description

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

[ integral System construction ]

As shown in fig. 1, a user product 1 includes a key system 3, and the key system 3 authenticates a key 2 carried by a user by wireless communication. The key system 3 permits or executes the operation of the mounting device 4 of the use object 1 based on the authentication result of the key 2. The key system 3 includes an intelligent system that performs authentication of the key 2 with communication from the utility 1 as a trigger. The utility 1 is, for example, a vehicle 5. The key 2 includes an electronic key having a key function.

In the case of the intelligent system, radio waves using an LF (Low Frequency) band are transmitted from the object 1 to the key 2, and radio waves using a UHF (Ultra High Frequency: ultra high Frequency) band are transmitted from the key 2 to the object 1. That is, in the case of the smart system, when the key 2 enters a communication area formed by electric waves of the LF band around the utility 1, authentication communication of the key 2 by LF-UHF communication is performed between the utility 1 and the key 2.

The key system 3 includes a control device 8, and the control device 8 performs authentication of the key 2. The control device 8 performs verification ECU (Electronic Control Unit) of whether the key 2 is correct or not, for example, by ID verification. Authentication information Did of the key 2 registered in the user 1 is registered in a memory (not shown) of the control device 8. The authentication information Did is also registered in a memory (not shown) of the key 2. The authentication information Did includes, for example, an ID code assigned to each of the plurality of keys 2 and an encryption key used for encryption communication at the time of authentication.

The control device 8 performs wireless communication of authentication with the key 2 through the communication unit 9. The communication unit 9 includes, for example, a transmission unit that performs transmission of radio waves from the control device 8, and a reception unit that receives radio waves from the key 2. In the case where the object 1 is divided into indoor and outdoor areas, the transmitting unit may include an outdoor transmitting unit that transmits radio waves to the outside and an indoor transmitting unit that transmits radio waves to the inside. The control device 8 authenticates the authentication information Did of the key 2 by wireless communication, thereby confirming 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 to the object 1. The mounting device 4 includes, for example, at least one of a door lock control device, a steering wheel lock device, and an engine control device that control the operation of the door lock 12 that locks or unlocks the door 11. The communication line 10 is, for example, a CAN (Controller Area Network: controller area network) or LIN (Local Interconnect Network: local area network).

In the case of the intelligent system, the control device 8 periodically transmits an LF band radio wave from the communication unit 9, and monitors whether the key 2 is present. When receiving the radio wave transmitted from the control device 8, the key 2 transmits a response with the radio wave in the UHF band. In this way, when communication (intelligent communication) between the key 2 and the control device 8 is established, verification (intelligent verification) is performed to confirm the authentication information Did of the key 2. When authenticating the authentication information Did of the key 2, the control device 8 permits or executes the operation of the mounting device 4.

The control device 8 permits locking or unlocking of the door 11 when the intelligent check (outdoor intelligent check) performed in response to the reception of the response from the key 2 by the radio wave transmitted from the outdoor transmitter is established. That is, when the normal key 2 is present outdoors, the locking or unlocking operation of the door lock 12 is permitted. In this way, the control device 8 sets establishment of authentication of the key 2 as one condition for permitting operation of the door lock 12. The control device 8 permits the switching operation of the vehicle power supply when the intelligent check (indoor intelligent check) performed in response to the reception of the response from the key 2 by the radio wave transmitted from the indoor transmitter is established. Thus, the engine can be started.

As shown in fig. 2, the key system 3 includes, for example, a digital key system using the mobile terminal 15 as the key 2. The mobile terminal 15 can be, for example, a high-performance mobile phone (multi-function terminal). The digital key system is a system in which the mobile terminal 15 is used as a key of the user 1 by registering the digital key Dk with the mobile terminal 15 from the outside.

The digital key Dk can be, for example, a disposable key that is permitted to be used only once or for a certain period of time. The digital key Dk can be downloaded to the mobile terminal 15 by various means such as downloading from a server, acquiring from a master key by wireless, and reading an image of code information. The digital key Dk may be downloaded to the mobile terminal 15 from the outside in the market or may be written in advance at the time of shipment.

The control device 8 authenticates the mobile terminal 15 by short-range wireless communication. The near field communication may be either PAN (Personal Area Network: personal area network) communication or near field communication. Examples of the personal area network communication include Bluetooth (registered trademark) communication, UWB (Ultra Wide Band) communication, wi-Fi (registered trademark) communication, and the like. In addition, bluetooth communication can be BLE (Bluetooth Low Energy: bluetooth Low energy). Near field wireless communication is one type of RFID, for example, NFC (Near Field Communication).

In the case of the digital key system, the control device 8 periodically transmits a broadcast packet by short-range wireless communication from the communication unit 9, and monitors whether or not the mobile terminal 15 is present. When receiving the broadcast packet transmitted from the communication unit 9, the mobile terminal 15 performs a scanning process and transmits a connection request to the control device 8. Thereby, the control device 8 and the mobile terminal 15 shift the state of the short-range wireless communication to the communication connection.

When the state of communication connection with the mobile terminal 15 is shifted, the control device 8 performs authentication of the mobile terminal 15. In this example, the mobile terminal 15 transmits the digital key Dk registered in itself to the control device 8 by short-range wireless communication. When the control device 8 receives the digital key Dk from the mobile terminal 15, it authenticates the digital key Dk. When the digital key Dk is successfully authenticated, for example, when the digital key Dk can be correctly decoded, the control device 8 obtains a session key used for the subsequent short-range wireless communication, the ID of the mobile terminal 15, and the like during the validity period of the digital key Dk. These information are written into a memory (not shown) held in the control device 8.

When the digital key Dk is authenticated, the control device 8 and the mobile terminal 15 enter an authentication completion state in which establishment of authentication is recognized. The authentication completion state is 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. Thus, specifically, in the case of the vehicle 5, the locking or unlocking operation of the door 11, the unlocking of the steering wheel lock device, the starting operation of the engine, and the like can be performed.

[ constitution of door Lock device 18 ]

As shown in fig. 1, the key system 3 includes a door lock device 18, and the door lock device 18 controls the locking operation of the door 11 based on a user operation on the object 1. When detecting a user operation on the object 1 in a state where authentication of the key 2 is established, the door lock device 18 performs a locking operation of the door 11 upon detection of the user operation. In this way, the door lock device 18 realizes a so-called smart entry function (registered trademark) that is a function of automatically executing a locking operation of the door 11 during a riding operation, even if the key 2 is not intentionally operated.

In this example, the smart entry function performs a lock operation of the door 11 when, for example, a door handle 19 provided to the door 11 is touched and operated. That is, the user operation of this example is a touch operation to the door handle 19. In this example, the lock operation of the door 11 is automatically performed when a predetermined position of the door handle 19 is touched with a finger or when the door handle 19 is held by a hand. The door handle 19 can be, for example, an outside door handle. The locking operation may be at least one of locking and unlocking of the door 11. In this example, the locking operation is both locking and unlocking of the door 11.

As shown in fig. 3 and 4, the door lock device 18 includes an electrode 21, and the electrode 21 detects a user operation to bring the body of the user into contact with or close to the operation unit 20. In this example, a plurality of electrodes 21 are provided. The electrodes 21 include a lock electrode 22 (illustrated in fig. 3) that detects a lock operation and an unlock electrode 23 (illustrated in fig. 4) that detects an unlock operation. The electrode 21 may be any of a capacitive type, a resistive film type, an ultrasonic type, and an optical type. In the case where a plurality of electrodes 21 are provided, the plurality of electrodes 21 can be formed in different sizes. 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 surface 24 to be operated by the user in the operation unit 20 is provided in plural numbers at mutually different positions. In this example, the plurality of operation surfaces 24 are the front surface 19a and the rear surface 19b existing on the plurality of outer surfaces of the door handle 19. The plurality of electrodes 21 are disposed on different operation surfaces 24. Specifically, a lock electrode 22 is disposed on the front surface 19a of the door handle 19, and an unlock electrode 23 is disposed on the rear surface 19b of the door handle 19. The lock operation is an operation of touching the periphery of the lock electrode 22 in the surface 19a of the door handle 19. The unlocking operation is an operation of touching the periphery of the unlocking electrode 23 on the back surface 19b of the door handle 19.

As shown in fig. 1, the door lock device 18 includes a static electricity detection module 27, and the static electricity detection module 27 detects a user operation based on a change in the static electricity capacitance of the electrode 21. The electrostatic detection module 27 can be a single-chip IC (Integrated Circuit: integrated circuit). In this example, the static electricity detection module 27 is disposed inside the door handle 19. The electrostatic detection module 27 inputs the electrostatic capacitance of the electrode 21, and detects a user operation according to the electrostatic capacitance change. In one example, the electrostatic detection module 27 measures the electrostatic capacitance of the electrode 21, and detects a user operation based on a change in the measured electrostatic capacitance. In this example, the user operation is a locking operation and an unlocking operation for the door handle 19.

The electrostatic detection module 27 includes an electrostatic detection unit 28 that detects the electrostatic capacitance of the electrode 21, and a signal processing unit 29 that generates and outputs an operation detection notification Sk based on a detection signal of the electrostatic detection unit 28. The electrostatic detection unit 28 detects the electrostatic capacitance in each of the lock electrode 22 and the unlock electrode 23. The signal processing unit 29 generates and outputs an operation detection notification Sk based on a detection signal of the electrostatic detection unit 28, that is, an operation detection notification Sk corresponding to a detection result of a user operation.

A wiring 30 is connected between the control device 8 and the electrostatic detection module 27, and the wiring 30 is used to notify the control device 8 of the detection result of the electrostatic detection module 27. In this example, the wiring 30 is constituted by only one line. The wiring 30 may be a pattern wiring provided on the substrate, or may be any wire.

The electrostatic detection module 27 (signal processing section 29) outputs (supplies) the operation detection notification Sk corresponding to the detection result of the user operation to the control device 8 via the wiring 30. The electrostatic detection module 27 (signal processing unit 29) outputs an operation detection notification Sk corresponding to the electrode 21 from among the plurality of electrodes 21, which has detected the user operation, to the control device 8. For example, in the case where the user operation is detected by the lock electrode 22, the electrostatic detection module 27 (signal processing portion 29) generates and outputs a lock operation detection notification Sk1, and in the case where the user operation is detected by the unlock electrode 23, the electrostatic detection module 27 (signal processing portion 29) generates and outputs an unlock operation detection notification Sk 2.

The operation detection notification Sk can be a pulse signal Spl composed of a combination of a high-level signal and a low-level signal. In this way, the operation detection notification Sk can be a voltage signal having a predetermined pulse waveform (rectangular wave). The time width Tx of the high level signal of the pulse signal Spl is set to a value corresponding to the detection result of the user operation. The control device 8 controls the operation of at least one (in this example, both) of locking and unlocking the door 11 based on the operation detection notification Sk (pulse signal Spl) input from the electrostatic detection module 27 through the wiring 30. In one example, the operation detection notification Sk may be a pulse signal Spl having a pulse width corresponding to a detection result of a user operation. In one example, the pulse width of the pulse signal Spl corresponding to the locking of the and gate 11 is different from the pulse width of the pulse signal Spl corresponding to the unlocking of the and gate 11.

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

[ action at the time of locking operation ]

As shown in fig. 5, in the case where the user locks the door lock 12 in the unlocked state, a tip of a finger or the like performs a touch operation on a predetermined position of the surface 19a which is one of the plurality of operation surfaces 24 operated by the user in the door handle 19. The electrostatic detection module 27 recognizes that there is a locking operation for the door handle 19 when detecting that the electrostatic capacitance detected by the locking electrode 22 has changed by a predetermined amount.

As shown in fig. 6, when the lock operation is detected by the lock electrode 22, the signal processing unit 29 outputs a lock operation detection notification Sk1 indicating the lock operation to the control device 8 via the wiring 30. The lock operation detection notification Sk1 is a pulse signal Spl, and is a signal in which the time width Tx of the high level signal becomes "Tx 1". That is, the signal processing unit 29 outputs the pulse signal Spl of the high level signal for a long time to the control device 8 through the wiring 30 as a notification that the lock operation is to be performed.

When the lock operation detection notification Sk1 is input from the static electricity detection module 27, the control device 8 permits the locking operation of the door lock 12 on the condition that the authentication of the key 2 is established. At this time, the control device 8 outputs a lock operation request for the door lock control device of the mounting device 4 to execute a lock operation through the communication line 10. This allows the door 11 of the user 1 in the unlocked state to be switched to the locked state.

[ action during unlocking operation ]

As shown in fig. 7, when the user unlocks the door lock 12 in the locked state, a touch operation is performed so as to hold the door handle 19. That is, a predetermined position of the back surface 19b, which is one of the plurality of operation surfaces 24 operated by the user in the door handle 19, is touched by hand. When detecting that the electrostatic capacitance detected by the unlocking electrode 23 changes by a predetermined amount, the electrostatic detection module 27 recognizes that the door handle 19 is unlocked.

As shown in fig. 8, when the unlocking operation is detected by the unlocking electrode 23, the signal processing unit 29 outputs an unlocking operation detection notification Sk2 indicating the unlocking operation to the control device 8 via the wiring 30. In this way, when the unlock operation is detected, the signal processing unit 29 outputs the unlock operation detection notification Sk2 to the control device 8 this time using the same wiring 30. The unlock operation detection notification Sk2 is a pulse signal Spl, and is a signal in which the time width Tx of the high level signal becomes "Tx 2". That is, the signal processing unit 29 outputs the pulse signal Spl having a short time of the high-level signal to the control device 8 through the wiring 30 as a notification that the unlock operation is to be performed. The unlock operation detection notification Sk2 may be output to the control device 8 in plural.

When the unlocking operation detection notification Sk2 is input from the static electricity detection module 27, the control device 8 permits the unlocking operation of the door lock 12 on the condition that the authentication of the key 2 is established. At this time, the control device 8 outputs an unlocking operation request for the door lock control device of the mounting device 4 to execute an unlocking operation through the communication line 10. This makes it possible to switch the door 11 of the user 1 in the locked state to the unlocked state.

[ Effect ]

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

(1) The door lock device 18 includes a control device 8, an electrode 21, and an electrostatic detection module 27. The electrode 21 detects a user operation of bringing the body of the user into contact with or close to the operation section 20. The electrostatic detection module 27 inputs the electrostatic capacitance of the electrode 21, and detects a user operation from the electrostatic capacitance change. The control device 8 controls at least one of locking and unlocking of the door 11 based on the detection result of the electrostatic detection module 27. The wiring 30 for the electrostatic detection module 27 to output the detection result to the control device 8 is constituted by only one line. The electrostatic detection module 27 outputs an operation detection notification Sk corresponding to the detection result of the user operation to the control device 8 via the wiring 30.

According to this configuration, when a user operation is detected by the electrode 21, an operation detection notification Sk corresponding to the detection result of the user operation is generated and notified from the electrostatic detection module 27 to the control device 8. Thereby, the operation detection notification Sk for notifying the control device 8 of a plurality of contents through the 1-line wiring 30 can be notified from the static electricity detection module 27. In this way, the number of wirings 30 required for outputting the operation detection notification Sk may be one. Therefore, the number of wirings 30 can be suppressed to be small.

(2) When the door lock device 18 is installed in the object 1, only the structural change of the door handle 19 and the software replacement of the static electricity detection module 27 may be performed with respect to the conventional system. Therefore, the mounting can be easily performed without requiring a large design change.

(3) The electrode 21 is provided in plurality. The electrostatic detection module 27 outputs an operation detection notification Sk corresponding to the electrode 21 from among the plurality of electrodes 21, which has detected the user operation, to the control device 8 via the wiring 30. According to this structure, even if there are a plurality of electrodes 21, the wiring 30 may not be provided for each electrode 21.

(4) The plurality of electrodes 21 includes a lock electrode 22 that detects a lock operation and an unlock electrode 23 that detects an unlock operation. When the lock electrode 22 detects a user operation, the electrostatic detection module 27 outputs an operation detection notification Sk indicating that the user has performed a lock operation to the control device 8. When the unlock electrode 23 detects a user operation, the electrostatic detection module 27 outputs an operation detection notification Sk indicating that the user has performed the unlock operation to the control device 8. According to this configuration, the operation detection notification Sk for the lock operation and the operation detection notification Sk for the unlock operation can be outputted from the electrostatic detection module 27 to the control device 8 via the common wiring 30.

(5) The operation detection notification Sk is a pulse signal Spl composed of a combination of a high-level signal and a low-level signal. The time width Tx of the high level signal of the pulse signal Spl is set to a value corresponding to the detection result of the user operation. According to this configuration, the notification content of the operation detection notification Sk can be appropriately set by a simple manner of switching the time width Tx of the high level signal of the pulse signal Spl.

(6) The operation surface 24 to be operated by the user in the operation unit 20 is provided in plural numbers at mutually different positions. When a plurality of electrodes 21 are provided, the plurality of electrodes 21 are disposed on different operation surfaces 24. According to this configuration, since one input operation is assigned to the operation surface 24, an operation error can be made difficult to occur.

(7) The operation unit 20 is a door handle 19 that is operated when the door 11 is opened and closed. According to this configuration, the presence or absence of a user operation on the door handle 19 can be detected based on the change in the capacitance of the electrode 21. In addition, in the door lock device 18 that is triggered by the user operation of the door handle 19, the number of wirings 30 that are constituent elements of the device can be suppressed to a small number.

(8) In the case where a plurality of electrodes 21 are provided, the plurality of electrodes 21 are formed in different sizes. According to this configuration, the plurality of electrodes 21 can be each appropriately set to a desired size.

(9) The control device 8 authenticates the key 2 of the door 11 by wireless communication, and sets the establishment of authentication as one condition for permitting the operation of the door lock 12. According to this configuration, when the master key is not at hand, the door lock 12 does not operate, so that the safety of the operation of the door lock 12 can be improved.

Modification example

The present embodiment can be modified as follows. The present embodiment and the following modifications can be combined with each other within a range that is not technically contradictory.

The number of electrodes 21 is not limited to a plurality, and may be one, for example. In this case, for example, the locking operation or the unlocking operation is determined according to a method of a user operation on the operation unit 20. As an example, the lock operation is determined when the operation unit 20 is continuously touched, and the unlock operation is determined when the operation unit 20 is touched for a predetermined time.

The pulse (time width Tx of the high-level signal) for notifying the Sk of the operation detection during the lock operation may be shortened, and the pulse (time width Tx of the high-level signal) for notifying the Sk of the operation detection during the unlock operation may be lengthened.

The operation detection notification Sk is not limited to notifying the lock operation or the unlock operation with the difference in the time width Tx of the pulse. For example, the operation detection notification Sk may also notify the lock operation or the unlock operation through a data string constructed by a high/low signal combination.

The lock electrode 22 and the unlock electrode 23 may be formed to have the same size.

The lock electrode 22 and the unlock electrode 23 may be disposed on the same operation surface 24.

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

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

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

The control device 8 and the static electricity detection module 27 may be configured by one or more processors operating in accordance with a computer program (software), or may be configured by a combination of such a processor and one or more dedicated hardware circuits such as an Application Specific Integrated Circuit (ASIC) that executes at least a part of various processes. The processor includes a CPU, a memory such as a RAM and a ROM, and the memory stores 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 above-described processor, a processing circuit configured by one or more dedicated hardware circuits that perform all of the various processes may be used.

The control device 8 and the static electricity detection module 27 may be configured by separate processors or may be configured by a processor shared by a part of the functions. In this way, the control device 8 and the static electricity detection module 27 are not limited to separate functional blocks, and may be constituted by one functional block or may be constituted by a part of functional blocks that are shared.

The present disclosure is described in terms of the embodiments, but it should be understood that the present disclosure is not limited to the embodiments or constructions. The present disclosure also includes various modifications and equivalents. Moreover, various combinations or modes, and further combinations or modes including only a single element, more than that or less than that, are also within the scope or spirit of the present disclosure.

Claims

1. A door lock device is provided with:

an electrode that detects a user operation of bringing a body of a user into contact with or close to an operation section;

an electrostatic detection module that inputs an electrostatic capacitance of the electrode and detects the user operation according to an electrostatic capacitance change; and

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

the wiring for the electrostatic detection module to output the detection result to the control device is constituted by only one line,

the static electricity detection module outputs an operation detection notification corresponding to a detection result of the user operation to the control device via the wiring.

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

the electrode is provided with a plurality of electrodes,

the static electricity detection module outputs the operation detection notification corresponding to the electrode, of the plurality of electrodes, that detected the user operation, to the control device via the wiring.

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

the plurality of electrodes include a lock electrode detecting a lock operation and an unlock electrode detecting an unlock operation,

the electrostatic detection module outputs the operation detection notification to the control device, the operation detection notification indicating that the user has made a lock operation when the user operation is detected by the lock electrode, and the electrostatic detection module outputs the operation detection notification to the control device, the operation detection notification indicating that the user has made an unlock operation when the user operation is detected by the unlock electrode.

4. The door lock device according to any one of claims 1 to 3, wherein,

the operation detection notification is a pulse signal composed of a combination of a high-level signal and a low-level signal,

the time width of the high level signal of the pulse signal is set to a value corresponding to the detection result of the user operation.

5. The door lock device according to any one of claims 1 to 3, wherein,

the operation surface of the operation part operated by the user is provided with a plurality of operation surfaces at mutually different positions,

in the case where a plurality of the electrodes are provided, the plurality of the electrodes are arranged on different operation surfaces.

6. The door lock device according to any one of claims 1 to 3, wherein,

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

7. The door lock device according to any one of claims 1 to 3, wherein,

in the case where a plurality of the electrodes are provided, a plurality of the electrodes are formed in different sizes.

8. The door lock device according to any one of claims 1 to 3, wherein,

the control device authenticates the key of the door by wireless communication, and uses the establishment of the authentication as one condition for permitting the door lock to operate.