Lock device, operation method for lock device, lock release system and program

Abstract

To provide a lock device, an operation method for the lock device, a lock release system and a program capable of improving security by improving reliability of lock release control including lock release error prevention as well as enabling lock lease operation securely reflecting user's intention for the lock device, the operation method for the lock device, and the lock release system improved in usability without requiring a physical key.SOLUTION: A lock device 10 is to allow simple release control of a lock release mechanism 70 through a lock device 50 with simple specific input operation on an operation section 52 of the lock device 50 and authentication by the lock device 50. The lock device 10 carries out at least: a process of sending authentication information to the lock device 50 when receiving radio waves for releasing lock dispatched with the lock device 50; and a process of making carry-out of the simple release control with the lock device 50 null when receiving position determination radio waves dispatched with the lock device 50 in a specific time.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a key device, a method for operating a key device, a locking / unlocking system, and a program. [Background technology]

[0002] Conventionally, there are known locking devices (electronic locks) that can operate a deadbolt (bolt) and lock / unlock a door simply by entering a personal identification number, instead of a physical key (for example, a key for a cylinder lock). In this case, a physical key is no longer necessary, which reduces the hassle of key handling (loss, etc.). Another advantage is that when installing locking devices in rental properties, etc., it becomes easier for managers and others to manage the locking device.

[0003] In addition, in systems including electronic locks (electronic locks) that do not require physical keys, there is known a lock-unlocking system that has a function (hands-free function) that uses a terminal device (e.g., a smartphone) carried by the user as a key, and when a user using the terminal device approaches the electronic lock, the electronic lock can be unlocked without operating the terminal device or electronic lock (see, for example, Patent Document 1).

[0004] The lock unlocking system described in Patent Document 1 uses GPS to detect the distance between the electronic lock and the terminal device, and executes an unlocking control process that controls the unlocking of the electronic lock based on that distance. In addition, because the positioning results of GPS location information contain errors, the system has a process for canceling the unlocking control to prevent the electronic lock from being accidentally unlocked due to erroneous detection of the location information. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2023-8738 Summary of the Invention [Problem to be solved by the invention]

[0006] However, the technology described in Patent Document 1 leaves room for improvement in terms of the reliability of the unlocking permission / denial decision. Specifically, in the technology described in Patent Document 1, the location information of the terminal device is detected using the terminal device's GPS, and the accuracy of the detection result (determination of unlocking permission / denial) is determined based on whether the terminal device can receive a Bluetooth (registered trademark) signal transmitted by the electronic lock. This makes the control more complex, and therefore makes the system more susceptible to errors.

[0007] In addition, although measures are taken to prevent mistaken locking, such as determining whether or not location information has been detected erroneously and canceling unlocking control, in order to realize hands-free functionality, the execution of unlocking control processing is also determined systematically, specifically, based on whether or not a Bluetooth (registered trademark) signal can be received.

[0008] The present invention has been made to solve these conventional problems, and aims to provide a key device, a key device operation method, a locking / unlocking system and program that eliminates the need for a physical key, improving usability, and that increases the reliability of unlocking control, including preventing mistaken locking, and enables unlocking operations that accurately reflect the user's intentions, thereby further improving security. [Means for solving the problem]

[0009] The present invention relates to a key device that causes a locking device to execute unlocking control by performing a predetermined input operation on the operating section of the locking device and having the locking device authenticate itself, and that performs at least the following processes: when it receives radio waves for unlocking emitted by the locking device, it sends information for the authentication to the locking device; and when it receives radio waves for position determination emitted by the locking device within a predetermined period, it disables the locking device from executing the simple unlocking control.

[0010] The present invention also relates to a key device that causes a locking device to execute unlocking control by authenticating the locking device in addition to a predetermined input operation on the operating unit of the locking device, and that has a simple unlocking processing unit that transitions the state between a simple unlocking permitted state and a simple unlocking disabled state, wherein the simple unlocking permitted state is a state in which execution of the simple unlocking control in the locking device is permitted, and the simple unlocking disabled state is a state in which execution of the simple unlocking control is disabled, and the simple unlocking processing unit switches to the simple unlocking disabled state if it receives position determination radio waves emitted by the locking device for a predetermined period during the simple unlocking permitted state, and switches to the simple unlocking permitted state if it is unable to receive the position determination radio waves for a predetermined period during the simple unlocking disabled state.

[0011] The present invention also relates to a method for operating a key device that, in addition to a predetermined input operation on the operating section of the lock device, causes the lock device to execute unlocking control by authenticating the lock device, characterized in that the method includes a process for transmitting information for the authentication to the lock device when the key device receives unlocking radio waves emitted from the lock device, and a process for disabling the lock device from executing the simple unlocking control when the key device receives position determination radio waves emitted from the lock device within a predetermined period.

[0012] The present invention also relates to a method for operating a key device that causes the lock device to execute unlocking control by authenticating the lock device in addition to a predetermined input operation on the operating section of the lock device, wherein the states of the key device are a simple unlocking permission state that allows the lock device to execute the simple unlocking control, and a simple unlocking disallowed state that prevents the execution of the unlocking control, and the method includes a process for switching the key device in the simple unlocking permission state to the simple unlocking disallowed state when the key device in the simple unlocking permission state receives position determination radio waves emitted from the lock device for a predetermined period of time, and a process for switching the key device in the simple unlocking disallowed state to the simple unlocking permission state when the key device is unable to receive the position determination radio waves for a predetermined period of time.

[0013] The present invention also relates to a program for causing a computer to execute the above-described operating method.

[0014] The present invention also relates to a locking / unlocking system having a locking device and a key device connected to the locking device for unlocking the locking device, wherein the locking device has a locking / unlocking mechanism, a lock side control unit, an operation unit, and a lock side communication unit, the lock side control unit is capable of transmitting unlocking radio waves and position determination radio waves to the outside via the lock side communication unit, the lock side control unit is capable of executing unlocking control to unlock the locking / unlocking mechanism, the simple unlocking control is executed based on receiving a predetermined input operation on the operation unit and authenticating the key device, the key device has a simple unlocking processing unit, and the simple unlocking processing unit performs at least the following processes: when the key device receives the unlocking radio waves, it sends information for the authentication to the locking device; and when the key device receives the position determination radio waves within a predetermined period, it disables the locking device from executing the simple unlocking control.

[0015] The present invention also provides a locking / unlocking system having a locking device and a key device connected to the locking device for unlocking the locking device, wherein the locking device has a locking / unlocking mechanism, a lock-side control unit, an operation unit, and a lock-side communication unit, the lock-side control unit is capable of transmitting unlocking radio waves and position determination radio waves to the outside via the lock-side communication unit, the lock-side control unit is capable of executing unlocking control to unlock the locking / unlocking mechanism, and the simple unlocking control is executed based on the acceptance of a predetermined input operation in the operation unit and authentication of the key device, and the key device has a simple unlocking processing unit, The present invention relates to a locking / unlocking system in which the state of the key device can be switched between a simple unlocking permission state in which the execution of the simple unlocking control in the lock side control unit is permitted, and a simple unlocking disallowed state in which the execution of the simple unlocking control in the lock side control unit is not permitted, and the simple unlocking processing unit switches to the simple unlocking disallowed state if the key device receives the position determination radio waves for a predetermined period during the simple unlocking permission state, and switches to the simple unlocking permission state if the key device is unable to receive the position determination radio waves for a predetermined period during the simple unlocking disallowed state. [Effects of the Invention]

[0016] According to the present invention, it is possible to provide a key device, a key device operation method, a locking / unlocking system and a program that can further enhance security by eliminating the need for a physical key and increasing the reliability of unlocking control, including preventing mistaken locking, and enabling unlocking operations that reliably reflect the user's intentions. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a block diagram showing the configuration of a locking / unlocking system according to an embodiment of the present invention; [Figure 2] 1 is a diagram showing an overview of a locking / unlocking system according to an embodiment of the present invention; [Figure 3] FIG. 1 is an operational image diagram of the locking / unlocking system according to the present embodiment. [Figure 4]FIG. 2 is a functional block diagram of the locking / unlocking system according to the present embodiment. [Figure 5] FIG. 2 is a state transition diagram of the lock device according to the present embodiment. [Figure 6] FIG. 2 is a sequence diagram of the locking / unlocking system according to the present embodiment. [Figure 7] A flow chart showing an example of a simple unlocking process in the locking device according to this embodiment. [Figure 8] FIG. 10 is a flow chart showing an example of an unlocking process in the key device according to the present embodiment. [Figure 9] FIG. 10 is a flow chart showing an example of an unlocking process in the key device according to the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0018] The key device 10, the operating method of the key device 10, the locking / unlocking system 1, and the program according to this embodiment will be described in detail below with reference to the drawings.

[0019] Fig. 1 is a block diagram showing an outline of the configuration of the locking / unlocking system 1 of this embodiment. Fig. 2 is a diagram explaining the outline of the locking / unlocking system 1, with Fig. 2(A) and Fig. 2(B) showing a part of the configuration of the locking / unlocking system 1 on the outside of the room, and Fig. 2(C) showing a part of the configuration of the locking / unlocking system 1 on the inside of the room.

[0020] 1 and 2, the locking / unlocking system 1 of this embodiment includes a key device 10, a locking device 50, and a locking / unlocking mechanism 70. The locking / unlocking system 1 can be applied to the entrance door of a residence, the partition door of a space (room) inside a building, and the like. In this embodiment, the locking / unlocking system 1 is applied to the entrance door of a residence, for example. That is, a locking device 50 is provided on the entrance door of the residence, and the locking / unlocking device 50 is locked and unlocked by the key device 10 carried by a legitimate operator (user) who is a resident of the residence (or a person authorized by the resident). In this case, the outside refers to the outside of the entrance door (door), and the inside refers to the entrance door and the space inside the residence. The locking device 50 may also be, for example, a handle lock integrated with a handle.

[0021] In the locking / unlocking system 1 of this embodiment, particularly in the unlocking process, the locking device 50 transmits a predetermined radio wave based on a predetermined operation on the locking device 50. When the key device 10 receives the radio wave, it transmits unlocking information to the locking device 50. When the locking device 50 receives unlocking information from a legitimate key device 10, it authenticates the information and unlocks the locking / unlocking mechanism 70.

[0022] <Lock device> The locking device 50 is, for example, an electronic lock that uses a battery as a power source and operates the locking / unlocking mechanism 70, including the deadbolt, by motor drive based on the reception and authentication of a signal containing a locking / unlocking instruction (command) without using a physical key (for example, a cylinder lock key). The locking device 50 may also be an electric lock that is powered by electrical wiring.

[0023] The lock device 50 has a lock control unit 51, operation units 52 and 53, a lock communication unit 54, a radio wave generating unit 55, a lock interface unit 56, a lock memory unit 57, a power supply unit 58, etc.

[0024] The lock-side control unit 51 is composed of, for example, a CPU, RAM, and ROM, and is responsible for controlling the locking and unlocking of the locking / unlocking mechanism 70 and other various components. Specifically, the lock-side control unit 51 performs authentication related to locking and unlocking control, outputs various control commands to the locking and unlocking mechanism 70 and other components, and supplies power. The lock-side control unit 51 can execute locking and unlocking controls as locking and unlocking controls. Locking controls include auto-lock control, which detects that the door is closed and automatically locks it using a motor, and / or locking control based on a locking command from the key device 10 or other key means. Unlocking controls include simple unlocking control, which allows the door to be unlocked with a simple operation by the operator, and unlocking control based on other unlocking commands (hereinafter referred to as "normal unlocking control").

[0025] The unlocking control of this embodiment does not use a physical key, and therefore, information for unlocking (unlocking information) input to the locking device 50 (obtained from the outside) is compared with authentication information stored in the lock-side memory unit 57. If the unlocking information matches the authentication information, the unlocking operation is permitted and the locking / unlocking mechanism 70 is activated to unlock the door. Furthermore, if the unlocking information does not match the authentication information after comparing it with the unlocking information, the lock-side control unit 51 rejects the unlocking operation and does not activate the locking / unlocking mechanism 70. The unlocking information input to the locking device 50 (obtained from the outside) includes input information received via the operation units 52 and 53, information from the key device 10 obtained via the lock-side communication unit 54, and information obtained from key means other than the key device 10 (for example, an IC card (such as a transportation IC card or a dedicated IC card), or input of a personal identification number).

[0026] In the present embodiment, the unlocking control, particularly the simple unlocking control, among the locking and unlocking controls executed by the lock side control section 51 will be described in detail below.

[0027] In this embodiment, the unlocking control includes, in addition to a predetermined simple input operation (simple operation) on the operation unit 52 (the start-up operation unit 52 described later), a first unlocking control (simple unlocking control) that unlocks by authenticating the key device 10 in the locking device 50, a second unlocking control (key device unlocking control) that unlocks by receiving an unlocking instruction from the key device 10 and authenticating the key device 10 in the locking device 50, a third unlocking control that unlocks by receiving an unlocking instruction from a card-type key means other than the key device 10 (for example, an IC card (transportation IC card or dedicated IC card)) and authenticating the key means in the locking device 50, and a fourth unlocking control that unlocks by entering a predetermined PIN (symbol) as a key means other than the key device 10 and authenticating it in the locking device 50. The second unlocking control, third unlocking control, and fourth unlocking control are the above-mentioned "normal unlocking controls."

[0028] Here, the "predetermined simple input operation (simple operation)" of the first unlocking control (simple unlocking control) refers to, for example, a single operation (touch or press) on the activation operation unit 52 or a contact or non-contact information input operation (e.g., inputting a two-dimensional code or biometric information). In this embodiment, as an example, a one-touch operation on the activation operation unit 52 (a single press of a button or a single touch on a touch panel) is referred to as a "simple operation." The control and function by which the locking / unlocking mechanism 70 is unlocked by this simple operation are referred to as the simple unlocking control (one-touch unlocking control) and the simple unlocking function (one-touch unlocking function), respectively. In the case of the simple unlocking control, the unlocking process on the key device 10 side is executed in the background. Therefore, the operator (user) can essentially unlock the locking device 50 with just a single touch on the activation operation unit 52.

[0029] Referring to FIG. 2 , the operation units 52 and 53 are specifically an activation operation unit 52 for activating the functions of the locking device 50 and a management / setting operation unit 53 (53A, 53B) for performing various settings for the locking device 50. The activation operation unit 52 is, for example, a physical button (switch) or touch switch operable from the outside (outside the room) and is operated to activate various functions of the locking device (electronic lock) 50 and to unlock the locking / unlocking mechanism 70 from outside the room. The locking device 50 becomes operable when powered on, but enters a sleep state immediately after powering on, after an operator operates it, after locking / unlocking control is performed, etc. The transition from this sleep state to a state in which the various functions of the locking device 50 are performed is referred to as "activating the locking device 50." The activation operation unit 52 is provided on the outside of the room so that it can be operated by an operator, as shown in FIGS. 2(A) and 2(B), and is operated to activate the locking device 50 and to unlock the locking / unlocking mechanism 70 during activation. The activation operation unit 52 may be, for example, a contact or non-contact information reading means (such as an IC card reader, a scanner capable of reading two-dimensional codes or biometric information, a camera, or a microphone).

[0030] The locking / unlocking system 1 of this embodiment can be unlocked without using a physical key, but the locking / unlocking mechanism 70 is unlocked by operating the activation operation unit 52. In other words, operation of the activation operation unit 52 in the locking device 50 is essential. However, when the simple unlocking control is enabled, unlocking is possible with a single touch of the activation operation unit 52.

[0031] In the case of the third unlocking control, after operating the start-up operation unit 52, the pre-registered IC card is read by the lock side interface unit 56 (input unit 56B) described below, and is authenticated by the lock device 50, thereby enabling unlocking.

[0032] In addition, in the case of the fourth unlocking control, after operating the start-up operation unit 52, the lock can be unlocked by inputting a pre-registered PIN number into the lock side interface unit 56 (input unit 56B) described below and authenticating it in the lock device 50.

[0033] The management and setting operation unit 53 is an operation unit for management and setting, and includes a setting operation unit 53A for starting various settings, such as registering the key device 10 that unlocks the locking device 50 (unlocking information when locking / unlocking with the key device 10 (registering information to match with the authentication information of the locking device 50)) and registering unlocking information when locking / unlocking with a key means other than the key device 10, and a management and setting operation unit 53B that is not normally used by the operator but is used by an administrator or the like to perform special settings. The management and setting operation unit 53 is provided inside the room as shown in Figure 2 (C). Below, the start-up operation unit 52 and the management and setting operation unit 53 are shown as physical switches as an example, but they may also be touch panel type operation units or biometric authentication type operation units.

[0034] Referring to FIG. 1, the lock side communication unit 54 includes at least a short-range wireless communication means represented by a wireless PAN (e.g., Bluetooth (registered trademark), ZigBee (registered trademark), etc.). As an example, the lock side communication unit 54 of the lock device 50 performs short-range wireless communication with at least the key side communication unit 12 of the key device 10 using the Bluetooth standard (BLE (Bluetooth Low Energy) or Bluetooth Classic). Here, it is assumed that the lock device 50 and the key device 10 in this embodiment are paired in advance. Here, "pairing" means that the communication partners are mutually memorized, common encryption information valid only between them is held, and the communication content is further encrypted to enable secure communication between them.

[0035] The lock side communication unit 54 also includes communication means capable of short-range wireless communication (for example, RF-ID, NFC, infrared communication, etc.), wireless LAN, wireless WAN, etc. and / or wired communication, and is connectable to an external communication network.

[0036] The radio wave generating unit 55 can generate radio waves for unlocking and radio waves for position determination. Both the radio waves for unlocking and the radio waves for position determination are transmission media for short-range wireless communication signals (e.g., BLE advertisements). The radio waves for unlocking and the radio waves for position determination have different reach, with the reach of the radio waves for position determination being longer than the reach of the radio waves for unlocking. The radio waves for unlocking and the radio waves for position determination will be described later.

[0037] The lock-side interface unit 56 includes, for example, a display unit 56A and an input unit 56B (see FIG. 2). The display unit 56A uses, for example, a 7-segment LED display or a liquid crystal display to display the status of the locking device 50, input information from the input unit 56B, various messages such as operation instructions (guides), and various errors in a manner that is visible from the outside (to the operator). The input unit 56B allows numbers and alphabets to be input by key operation. The input unit 56B also includes contactless and / or contact-type reading and writing means such as a card reader / writer, and is capable of receiving operations related to the locking device 50 (such as locking / unlocking instructions (unlocking instructions or locking instructions)).

[0038] In this embodiment, the lock side interface unit 56 is illustrated as being composed of a 7-segment LED display unit 56A and an input unit 56B including a numeric keypad and a card reader / writer, but the lock side interface unit 56 may also be composed of a touch panel or the like in which the display unit 56A and the input unit 56B are integrated.

[0039] The power supply unit 58 is provided, for example, on the interior side of the door. In this example, the power supply is a battery.

[0040] The lock-side memory unit 57 stores various control programs, identification information for individually identifying the key device 10 and other key means, authentication information for determining the legitimacy of the locking / unlocking operation (information for comparing with the unlocking information of the key device 10 and other key means), and various other information input via the lock-side communication unit 54 and the lock-side interface unit 56. The lock-side memory unit 57 may include a program that realizes the functions of the locking / unlocking system 1, but the program may also be incorporated into the lock-side control unit 51 as firmware.

[0041] The locking / unlocking mechanism 70 can have a known configuration, and will be briefly described below without illustration. The locking / unlocking mechanism 70 includes, for example, a lock case housed inside the door and including a motor, various detectors (sensors), gears, a gear clutch, a cam, a deadbolt, etc.; a strike mounted on the door frame; and a thumb turn 59 mounted on the interior side of the room and capable of driving the deadbolt. The locking / unlocking mechanism 70 is configured to drive the motor based on a locking / unlocking operation of the locking device 50 from the exterior, thereby advancing or retracting the deadbolt relative to the strike. When the deadbolt is in an unlocked state and the lock-side control unit 51 outputs a command to drive the motor as a locking operation, the deadbolt moves in the locking direction (protruding toward the strike) and enters a locked state. When the deadbolt is in a locked state and the lock-side control unit 51 issues a command to drive the motor as an unlocking operation, the deadbolt moves in the unlocking direction (retracting from the strike) and enters an unlocked state. In addition, the locking / unlocking mechanism 70 can advance or retract the deadbolt relative to the strike by operating the thumb turn 59 for locking or unlocking (manual operation) from inside the room.

[0042] 2(A) shows a case where the activation operation unit 52 and the lock side interface unit 56 are provided separately, but they may also be provided as an integrated unit. That is, the activation operation unit 52 may be provided as part of the lock side interface unit 56, or a part of the function of the lock side interface unit 56 (a button or a combination of button operations) may function as the activation operation unit 52.

[0043] <Key device> Referring to Figure 1, the key device 10 has a key side control unit 11, a key side communication unit 12, a key side interface unit 13 and a key side memory unit 14, and is connected to the lock device 50 by at least a short-range wireless communication line (e.g., a wireless communication line conforming to the BLE standard), and is a device that causes the lock side control unit 51 of the lock device 50 to perform locking and unlocking control.

[0044] The key device 10 may be, for example, an information terminal device portable by an operator (user) (e.g., a general-purpose information terminal device such as a smartphone, wearable terminal device, or tablet terminal device), or a dedicated terminal device compatible with the lock device 50. The key device 10 realizes the functions of the key device 10 described with reference to FIG. 3 by executing firmware pre-installed in the key-side control unit 11 of the key device 10, or by executing a program that realizes the functions of the locking / unlocking system 1 stored in the key-side storage unit 14 and various control programs. Hereinafter, as an example, the key device 10 will be described as a smartphone capable of executing a program (hereinafter, a locking / unlocking application program) that realizes the functions of the key device 10 of the locking / unlocking system 1 stored in the key-side storage unit 14. That is, the key device 10 has various known configurations and functions of a smartphone in addition to the configurations and functions described in this embodiment.

[0045] The key-side control unit 11 is composed of, for example, a CPU, RAM, and ROM, and is responsible for locking / unlocking control of the locking device 50 in the key device 10, as well as control of various other components. Specifically, the key-side control unit 11 executes a lock-side locking / unlocking application program to perform lock-side locking / unlocking processing. The lock-side locking / unlocking processing can cause the locking device 50 to perform locking / unlocking control. The following mainly describes the case where the locking device 50 is caused to perform unlocking control, particularly simple unlocking control.

[0046] The key-side communication unit 12 includes at least a short-range wireless communication means represented by a wireless PAN (e.g., Bluetooth (registered trademark), ZigBee (registered trademark), etc.). As an example, the key-side communication unit 12 performs short-range wireless communication using at least the same method as the lock device 50 (e.g., BLE). The key device 10 is paired in advance with the lock device 50 so that short-range wireless communication can be performed. The lock-side communication unit 54 also includes communication means capable of short-range wireless communication (e.g., RF-ID, NFC, etc.), wireless LAN, wireless WAN, etc. and / or wired communication, and is connectable to an external communication network.

[0047] The key-side interface unit 13 is, for example, a touch panel in which a display unit and an input unit are integrated, and various information can be input and displayed.

[0048] A locking / unlocking application program and other control programs are stored and held in the key-side memory unit 14. By executing the locking / unlocking application program from the key-side interface unit 13 of the key device 10 (by selecting an icon displayed on the display unit), the locking / unlocking process of the key device 10 (key-side locking / unlocking process) is executed in the background.

[0049] 3 is an image diagram of the operation of the locking / unlocking system 1 of this embodiment. In the simple unlocking process in the locking / unlocking system 1 of this embodiment, the locking device 50 transmits unlocking radio waves based on a simple operation of the locking device 50. When the key device 10 receives the unlocking radio waves, it transmits unlocking information to the locking device 50. The locking device 50 authenticates the unlocking information from the key device 10, which is the paired partner, and unlocks the locking / unlocking mechanism 70.

[0050] In Figure 3, the range indicated by the solid line is the range that the unlocking radio waves can reach (for example, a circular range with a radius of 3m to 5m), and the range indicated by the dashed line is the range that the position determination radio waves can reach (for example, a circular range with a radius of 10m to 20m).

[0051] FIG. 3A shows the state when the operator has returned home. When the operator leaves the house, the key device 10 is in a state (simple unlocking permitted state) that allows the lock device 50 to execute simple unlocking control (one-touch unlocking function on). When the operator returns home carrying the key device 10 in the simple unlocking permitted state, the operator performs a simple operation (one-touch operation) on the activation operation unit 52 of the lock device 50. The lock device 50 then transmits unlocking radio waves (solid line) for a predetermined period (connection establishment period, e.g., several seconds to several tens of seconds). The key device 10, upon receiving the unlocking radio waves, establishes a one-to-one connection with the lock device 50 and transmits unlocking information (a predetermined unlocking code) to the lock device 50. When the unlocking information is authenticated by the lock device 50, the lock device 50 unlocks the locking / unlocking mechanism 70. In other words, the operator can execute unlocking (simple unlocking control) by simply operating the activation operation unit 52 of the lock device 50 without operating the key device 10. In this case, the key device 10 can be said to allow the lock device 50 to execute simple unlocking control by establishing a one-to-one connection with the lock device 50 and / or transmitting unlocking information.

[0052] 3(A), the position determination radio waves are transmitted intermittently after the lock device 50 is powered on. In other words, when the operator approaches the lock device 50, the key device 10 also receives the position determination radio waves, but if the period during which the position determination radio waves are received is within a predetermined period (proximity estimation period (e.g., several minutes)), the key device 10 maintains the simple unlocking permission state.

[0053] FIG. 3B shows a state in which an operator enters a room and locks the locking device 50 from inside the room (using the thumb turn 59 or auto-lock control), while the key device 10 is left near the locking device 50 (e.g., at the entrance). In this case, the connection establishment period has elapsed since the activation operation unit 52 of the locking device 50 was operated, and therefore the transmission of unlocking radio waves has stopped. Meanwhile, the location determination radio waves are continuously transmitted. If the period during which the key device 10 receives the location determination radio waves exceeds the proximity estimation period (e.g., several minutes), the key device 10 infers that the key device 10 is near the locking device 50 (e.g., inside the room or near the entrance), and switches the easy unlocking permission state of the key device 10 to the easy unlocking disabled state (one-touch unlock function off). When the key device 10 is in the easy unlocking disabled state, the locking device 50 will not be unlocked even if the activation operation unit 52 of the locking device 50 is operated with a simple operation (one-touch operation). Specifically, even if a simple operation (one-touch operation) is performed on the activation operation unit 52 of the lock device 50 and an unlocking radio wave is transmitted, a one-to-one connection with the lock device 50 is not established (as a result, the unlocking code from the key device 10 is not transmitted). Therefore, the lock device 50 does not authenticate the key device 10, and the lock cannot be unlocked by the simple operation. In other words, in this case, the key device 10 can be said to disable the execution of the simple unlocking control of the lock device 50 by not establishing a one-to-one connection with the lock device 50 and / or not transmitting the unlocking information (unlocking code).

[0054] In this embodiment, the key device 10 receives unlocking radio waves transmitted in response to operation of the activation operation unit 52, enabling simple unlocking control. With this configuration alone, even if an operator enters a room (such as the entrance) and locks the lock device 50, a third party operating the activation operation unit 52 from outside the room while the key device 10 is near the lock device 50 (such as the entrance), unlocking the door can occur. To address this issue, in this embodiment, the lock device 50 transmits, in addition to the unlocking radio waves, location-determining radio waves, which have a longer reach and transmission period than the unlocking radio waves. If the key device 10 receives the location-determining radio waves for a predetermined period (proximity estimation period), it estimates that it is within a predetermined distance from the lock device 50 (such as near the entrance of a room) and performs processing to disable simple unlocking control (e.g., processing to not establish a one-to-one connection with the lock device 50 and / or processing to not transmit the unlocking code). This prevents unauthorized unlocking by a third party and enhances security.

[0055] 3(C) shows the state when the operator is out. When the key device 10 is away from the lock device 50 and is unable to receive the position determination radio waves transmitted from the lock device 50 for a predetermined period (remote estimation period, for example, several minutes or more), the key device 10 assumes that it has moved away from the lock device 50 and switches to a simple unlocking permitted state (one-touch unlocking function on).

[0056] The simple unlocking permitted state is a state in which, when an unlocking radio wave is received, a one-to-one connection with the locking device 50 is established and the device is on standby to send the unlocking code. In other words, if you return home from an outing in this state, the state becomes as shown in Figure 3(A), and unlocking by a simple operation becomes possible. In this way, the location determination radio wave can be said to be the radio wave that switches the one-touch unlocking function on / off, and the unlocking radio wave can be said to be the radio wave for one-touch unlocking.

[0057] Because the locking / unlocking process (lock-side locking / unlocking process) in the key device 10 is executed in the background, when a legitimate operator returns home from an outing, the door can be unlocked essentially by simply operating the activation operation unit 52 of the lock device 50 (one-touch operation). Because one-touch operation of the activation operation unit 52 is required, the unlocking operation accurately reflects the operator's intention, ensuring high usability.

[0058] The functions of the locking / unlocking system 1 of this embodiment will be described with reference to Fig. 4. Fig. 4 is a functional block diagram that mainly explains the simple unlocking function of the locking / unlocking system 1.

[0059] <Function of the locking device> The locking device 50 includes a lock-side control unit 51, a start-up operation unit 52, a lock-side communication unit 54, a radio wave generation unit 55, and a lock-side memory unit 57. The lock-side control unit 51 includes a lock-side locking / unlocking processing unit 510 and performs locking / unlocking control on the locking / unlocking mechanism 70. Locking / unlocking control is a general term for locking control and unlocking control, and unlocking control includes simple unlocking control and normal unlocking control. In this embodiment, for example, firmware (program for the locking / unlocking system 1) that realizes the functions of the locking device 50 of the locking / unlocking system 1 is incorporated into the lock-side control unit 51. The lock-side control unit 51 executes this program to function as the lock-side locking / unlocking processing unit 510 and realize locking / unlocking processing functions, including the simple unlocking function, on the locking device 50 side. The lock-side control unit 51 also cooperates with the key device 10 to realize the functions of the locking / unlocking system 1 of this embodiment.

[0060] The lock side locking / unlocking processing unit 510 has a lock side simple unlocking processing unit 511, an authentication unit 512, a lock side registration unit 513, and a locking / unlocking execution unit 515.

[0061] After the lock device 50 is powered on, the lock side simple unlocking processing unit 511 transmits the position determining radio waves generated by the radio wave generating unit 55 to the outside via the lock side communication unit 54. The position determining radio waves are radio waves (transmission medium for short-range wireless signals) that can be used for short-range wireless communication. After the lock device 50 is powered on, the lock side simple unlocking processing unit 511 continues to transmit the position determining radio waves intermittently. The transmission interval of the position determining radio waves is, for example, 20 ms. Note that the position determining radio waves are also transmitted in the sleep state, but in the sleep state, it is desirable to make the transmission interval longer in order to reduce current consumption.

[0062] Furthermore, when a simple operation (one-touch operation) is performed on the startup operation unit 52 while the lock device 50 is running, the lock-side simple unlocking processing unit 511 transmits unlocking radio waves generated by the radio wave generation unit 55 to the outside via the lock-side communication unit 54. The unlocking radio waves are radio waves that can be used for short-range wireless communication and have a shorter reach than the position determination radio waves. The lock-side simple unlocking processing unit 511 transmits the unlocking radio waves intermittently (e.g., at 20 ms intervals) during the connection establishment period (e.g., a period of several seconds to a dozen seconds) after the simple operation.

[0063] Here, the state transition of the locking device 50 will be explained with reference to Figure 5. The locking device 50 enters a state where it can be controlled to lock and unlock after power is turned on. First, the locking device 50 transitions to a sleep state immediately after power is turned on. In the sleep state, the lock-side simple unlocking processing unit 511 intermittently transmits position determination radio waves generated by the radio wave generating unit 55 to the outside via the lock-side communication unit 54.

[0064] In the sleep state, when the activation operation unit 52 is operated (a one-touch operation is performed, or the input operation is accepted), the lock device 50 enters the "activating" state. During activation, the lock-side simple unlocking processing unit 511 intermittently transmits unlocking radio waves generated by the radio wave generation unit 55 to the outside via the lock-side communication unit 54 during a connection establishment period (a period of several seconds to several tens of seconds after the simple operation). Also, during activation, the lock-side simple unlocking processing unit 511 intermittently transmits location determination radio waves to the outside. That is, during activation, the unlocking radio waves and location determination radio waves are alternately transmitted, for example, at intervals of 20 ms.

[0065] When the setting operation unit 53A is operated in the sleep state, the lock device 50 enters the "setting in progress" state. During the setting in progress, various settings can be made, such as registering the unlocking information of the key device 10 that unlocks the lock device 50, and registering the unlocking information when locking or unlocking the lock device 50 using a device other than the key device 10. During the setting in progress, the lock-side simple unlocking processing unit 511 intermittently transmits radio waves for position determination to the outside.

[0066] When the management setting operation unit 53B is operated in the sleep state, the lock device 50 enters the "management setting in progress" state. During the management setting, special settings can be made by an administrator, etc. During the management setting, the lock side simple unlocking processing unit 511 intermittently transmits radio waves for location determination to the outside.

[0067] Furthermore, in the sleep state, when the thumb turn 59 is operated from inside the room and the locking state is entered, the locking device 50 enters the "lock / unlock notification state." In the "lock / unlock notification state," the operator is notified that locking or unlocking has been completed by the display unit 56A (for example, OPEN / LOCK), by sounding a buzzer, etc. In the lock / unlock notification state, the lock-side simple unlocking processor 511 intermittently transmits position determination radio waves to the outside.

[0068] When the operator finishes operation during startup, configuration, or management configuration, the device transitions to a sleep state.

[0069] The lock control unit 51 transmits a position determination radio wave via the lock communication unit 54 while waiting for connection with the corresponding key device 10 .

[0070] In addition, when a simple operation is performed on the activation operation unit 52, the lock side control unit 51 transmits unlocking radio waves via the lock side communication unit 54 for a predetermined period (a connection establishment period, for example, a period of several seconds to a dozen seconds, etc.).

[0071] The advertisement transmitted by the lock device 50 can include information about the radio wave that is the transmission medium (received radio wave strength, RSSI) and information about the transmitting device (lock device 50) (identification information is attribute data, etc.). Therefore, a device that receives the advertisement (for example, the key device 10) can obtain the received radio wave strength of the transmission medium of the advertisement and the identification information of the lock device 50.

[0072] Referring again to FIG. 4 , the authentication unit 512 performs an authentication process to compare unlocking information acquired from the paired key device 10 or other key means with authentication information stored in the lock-side storage unit 57 of the lock device 50. If the unlocking information and authentication information match through the authentication process, the lock-side control unit 51 performs an unlocking process for the locking / unlocking mechanism 70. On the other hand, if the unlocking information and authentication information do not match, the lock-side control unit 51 does not perform an unlocking process for the locking / unlocking mechanism 70. In particular, in the simplified unlocking control, when a simplified operation (input operation) is received through the activation operation unit 52 and a connection request is received from the paired key device 10, a one-to-one connection is established with the key device 10, and the unlocking information (e.g., an unlocking code) transmitted from the key device 10 is compared with the authentication information stored in the lock device 50. If the unlocking information and authentication information match (if the key device 10 is authenticated), the locking / unlocking mechanism 70 is unlocked (simplified unlocking control is executed). On the other hand, if the two do not match (if authentication is not performed), the locking / unlocking mechanism 70 is not unlocked (simplified unlocking control is not executed).

[0073] The lock-side registration unit 513 accepts in advance the registration of a key device 10 that will be newly permitted to be unlocked (to be paired), and stores the unique information of the key device 10 (such as a profile including unique identification information) in the lock-side memory unit 57. The lock-side registration unit 513 also transmits the unique information of the lock device 50 itself (such as a profile including unique identification information) to the key device 10 via the lock-side communication unit 54. The lock-side registration unit 513 also accepts in advance the registration of unique identification information of other key means (such as an IC card or a PIN number), and stores this in the lock-side memory unit 57.

[0074] The locking / unlocking execution unit 515 performs unlocking control (normal unlocking control) other than simple unlocking control and locking control for the locking / unlocking mechanism 70. Specifically, the locking / unlocking execution unit 515 drives and unlocks the locking / unlocking mechanism 70 based on an unlocking instruction based on operation of a locking / unlocking instruction operating means of the key device 10 (described later), or an unlocking instruction from other key means such as an IC card or a personal identification number. The locking / unlocking execution unit 515 also drives and locks the locking / unlocking mechanism 70 based on a locking instruction from the key device 10 or other key means, or upon detection that the door has closed.

[0075] <Key device functions> The key device 10 includes a key-side control unit 11, a key-side communication unit 12, a key-side interface unit 13, and a key-side storage unit 14. The key-side control unit 11 includes a key-side locking / unlocking processing unit 110 that causes the locking device 50 to execute locking / unlocking control (giving instructions and permission for locking / unlocking control). In this embodiment, the key-side storage unit 14 stores an application program (a program for the locking / unlocking system 1, a locking / unlocking application) that realizes the functions of the key device 10 of the locking / unlocking system 1. The key-side control unit 11 executes this program to function as the key-side locking / unlocking processing unit 110 and realizes locking / unlocking processing functions, including a simple unlocking function, on the key device 10 side. The key device 10 also cooperates with the locking device 50 to realize the functions of the locking / unlocking system 1 of this embodiment. The locking / unlocking application is launched and executed, for example, by selecting the locking / unlocking application icon displayed on the key-side interface unit (display unit) 13 of the key device 10 and performing a predetermined operation (e.g., a login operation) as necessary. Thereafter, the locking / unlocking application runs in the background until it is terminated.

[0076] The key-side locking / unlocking processing unit 110 includes a locking device detection unit 111, a key-side simple unlocking processing unit 112, a locking / unlocking instruction unit 113, a key-side registration unit 114, and the like.

[0077] The lock device detection unit 111 detects (scans) surrounding devices and attempts to receive unlocking radio waves and / or position detection radio waves (advertisements transmitted by these) emitted by the lock device 50 with which it is paired.

[0078] The key device 10 can transition between a simple unlocking permission state in which execution of simple unlocking control by the lock-side control unit 51 is permitted and a simple unlocking disallowed state in which execution of simple unlocking control by the lock-side control unit 51 is disallowed, and the key-side simple unlocking processor 112 switches (transitions) the state between the simple unlocking permission state and the simple unlocking disallowed state depending on the reception status of the position determination radio waves. Specifically, the key-side simple unlocking processor 112 switches to the simple unlocking disallowed state if it receives the position determination radio waves for a predetermined period (a nearby estimation period, for example, several minutes) while in the simple unlocking permission state, and switches to the simple unlocking permission state if it cannot receive the position determination radio waves for a predetermined period (a remote estimation period, for example, 10 minutes or more) while in the simple unlocking disallowed state. The simple unlocking permitted state is a state in which the key device 10 establishes a one-to-one connection with the lock device 50 and sends an unlocking code to the lock device 50 on the condition that the key device 10 receives an unlocking radio wave, and the simple unlocking disallowed state is a state in which, for example, even if the key device 10 receives an unlocking radio wave, it does not establish a one-to-one connection with the lock device 50 and does not send an unlocking code to the lock device 50 (transmission is stopped).

[0079] Furthermore, in the simple unlocking permitted state, if the key device 10 receives a position determination radio wave from the paired lock device 50 within a predetermined period (proximity estimation period, for example, several minutes) (for example, if the signal is received at least once during the proximity estimation period, or if the signal is received intermittently or continuously during the proximity estimation period; the same applies below), it performs processing to disable the execution of simple unlocking control by the lock device 50. The processing to disable the execution of simple unlocking control is, for example, processing to prevent the transmission of an unlocking code to the lock device 50.

[0080] More specifically, when the operator is out, the key device 10 is in a simple unlocking permitted state (a state in which simple operations in the lock device 50 are possible). In this case, when the operator performs a simple operation (one-touch operation) on the activation operation unit 52 of the lock device 50, the lock-side control unit 51 of the lock device 50 emits radio waves for unlocking. The key-side communication unit 12 communicates with the lock device 50 using BLE, for example, and the lock device detection unit 111 of the key-side control unit 11 detects (scans) the radio waves (radio waves for position determination and radio waves for unlocking) emitted by the lock device 50.

[0081] Then, it receives the unlocking radio waves (the advertisement transmitted thereby), and when it receives the unlocking radio waves, the key-side simple unlocking processing unit 112 sends a one-to-one connection request to the lock device 50 and establishes a one-to-one connection with the lock device 50 (for example, it establishes a BLE connection (GATT communication connection) and sends its profile (information including the key device 10's unique identification information, etc.)).

[0082] Thereafter, the key-side simple unlocking processor 112 of the key device 10 transmits a dedicated unlocking code as unlocking information to the lock device 50. In the lock device 50, the authentication unit 512 compares the unlocking information acquired from the key device 10 with the authentication information stored in the lock-side memory unit 57, and if the two match, simple unlocking control is performed, but if they do not match, simple unlocking control is not performed.

[0083] The key-side simple unlocking processor 112 also estimates the position of the key device 10 according to the reception state of the position determination radio wave, and switches the simple unlocking function (one-touch unlocking function) between enabled and disabled.

[0084] More specifically, when the key device 10 is in a simple unlocking permission state (a state in which simple unlocking control is possible in the lock device 50, and the one-touch unlocking function is on), the lock side control unit 51 of the lock device 50 also emits radio waves for position determination.

[0085] If the key device 10 receives the location determination radio waves (and the advertisements transmitted thereby) within a predetermined period (proximity estimation period, e.g., several minutes), the key-side simple unlocking processing unit 112 of the key device 10 estimates that the key device 10 is in the vicinity of the lock device 50 and switches the state of the key device 10 from the simple unlocking permitted state to the simple unlocking disabled state (one-touch unlocking function off) (if the key device 10 is in the simple unlocking disabled state, it maintains that state). This interrupts communication between the key device 10 and the lock device 50, and the key device 10 no longer transmits an unlocking code to the lock device 50, preventing the lock device 50 from executing simple unlocking control. When the operator approaches the lock device 50 upon returning home and operates the activation operation unit 52 of the lock device 50 (one-touch operation), the lock device 50 transmits location determination radio waves, which the key device 10 can receive. If the key device 10 receives a location determination radio wave and switches from the simple unlocking permitted state to the simple unlocking disabled state in a short time, the simple unlocking control will not be possible. Therefore, in this embodiment, the key device 10 switches from the simple unlocking permitted state to the simple unlocking disabled state only if it receives a location determination radio wave for a proximity estimation period (for example, several minutes).

[0086] Furthermore, if the key device 10 is unable to receive the location determination radio waves (the advertisements transmitted thereby) for a predetermined period (a remote estimation period, for example, 10 minutes or more), the key-side simple unlocking processing unit 112 of the key device 10 estimates that the key device 10 is located far from the lock device 50 and sets the state of the key device 10 to the simple unlocking permitted state. In other words, if the state of the key device 10 is in the simple unlocking disabled state, it switches to the simple unlocking permitted state, and if the state of the key device 10 is in the simple unlocking permitted state, it maintains that state.

[0087] In other words, when the key device 10 is a predetermined distance away from the lock device 50, such as when you are out, the key device 10 enters a simple unlocking permission state, and when a predetermined condition is met (when a simple operation is performed on the activation operation unit 52 of the lock device 50), the key device 10 enters a state in which it is ready to send an unlocking code. This can also be said to be a state in which it is ready to send an unlocking code in the simple unlocking permission state.

[0088] The locking / unlocking instruction unit 113 issues instructions to the locking device 50 for locking / unlocking other than simple unlocking control (normal unlocking control, locking control). For example, if the key device 10 receives unlocking radio waves in a simple unlocking permitted state but does not connect to the locking device 50 during the connection establishment period, the key-side simple unlocking processing unit 112 switches from the simple unlocking permitted state to a simple unlocking disabled state. In other words, simple unlocking control is temporarily disabled. In such a case, the operator can send an unlocking instruction to the locking device 50 using a locking / unlocking instruction operation means. The locking / unlocking instruction operation means is, for example, instruction buttons (unlock button and lock button) displayed on the display unit (key-side interface unit) 13 of the key device 10 when a locking / unlocking application is launched. If simple unlocking control is not possible or if the operator does not intend to perform the simple operation, the operator launches the locking / unlocking application to display the unlock button on the display unit 13 of the key device 10 and operates it. When the unlock button is operated, the lock / unlock instruction unit 113 sends an unlock instruction to the locking device 50. As with other key means, the lock-side control unit 51 of the locking device 50 compares the identification information of the key device 10 that sent the unlock instruction and the unlock instruction as unlock information with the authentication information, and if they match, unlocks the locking / unlocking mechanism 70. This is the second unlocking control (key device unlocking control) described above. Also, when the operator operates the lock button displayed on the display unit 13 by launching the locking / unlocking application, the locking / unlocking instruction unit 113 sends a lock instruction to the locking device 50, and the lock-side control unit 51 of the locking device 50 locks the locking / unlocking mechanism 70 in response.

[0089] In this way, the key device 10 estimates its own position based on the reception status of the unlocking radio waves and the position determination radio waves transmitted from the same source (lock device 50), and allows or disallows simple unlocking by the lock device 50. Both the unlocking radio waves and the position determination radio waves are mediums for short-range wireless communication signals, allowing the key device 10 to accurately estimate its own position, enabling reliable unlocking control.

[0090] In addition, if simple unlocking control cannot be performed because the lock device 50 and key device 10 are not connected during the connection establishment period, normal unlocking control can also be performed using other key means such as an IC card or a PIN number.

[0091] With reference to FIG. 6, the state of the simple unlocking control of the key device 10 according to the reception state of the position determination radio wave will be described.

[0092] FIG. 6A is a sequence diagram of the key device 10 and the lock device 50 when switching from a simple unlocking control disabled state to a simple unlocking control permitted state.

[0093] (1) If the location determination signal is not received during the remote estimation period When the key device 10 (the lock device detection unit 111) is in a state where simple unlocking control is not possible (one-touch unlocking function off), it scans for position-determining radio waves, and if it is unable to receive position-determining radio waves, it initializes and starts measuring a timer for measuring the period during which position-determining radio waves are not received (for example, measuring 10 minutes as a remote estimation period). After the lock device 50 is powered on, it intermittently transmits position-determining radio waves. If the key-side simple unlocking processing unit 112 of the key device 10 does not receive any position-determining radio waves during the remote estimation period, it ends the timer for measuring the remote estimation period and switches to a state where simple unlocking control is permitted (one-touch unlocking function on).

[0094] (2) When receiving radio waves for location determination during the remote estimation period The key device 10 (its lock device detection unit 111) in the simple unlocking control disabled state (one-touch unlocking function off) scans for position determination radio waves, and if it receives position determination radio waves, it initializes and starts measuring a timer for measuring the period during which it has not received position determination radio waves (for example, measuring 10 minutes as a remote estimation period). If the key-side simple unlocking processing unit 112 of the key device 10 receives position determination radio waves while measuring the remote estimation period, it resets the timer that measures the remote estimation period and starts measuring from the beginning. Thereafter, if it receives position determination radio waves during the remote estimation period, it repeatedly resets the timer and starts measuring. In this case, the simple unlocking control disabled state is maintained. On the other hand, if it does not receive position determination radio waves during the remote estimation period, it returns to (1) above.

[0095] FIG. 6B is a sequence diagram of the key device 10 and the lock device 50 when switching from the simple unlocking control permitted state to the simple unlocking control disabled state.

[0096] The key device 10 (its lock device detection unit 111) in the simple unlocking control permitted state (one-touch unlocking function off) scans for position determination radio waves. After the lock device 50 is powered on, it intermittently transmits position determination radio waves. When the key device 10 (its lock device detection unit 111) receives the position determination radio waves, it initializes a timer to measure the period during which the position determination radio waves are received (for example, measuring 5 minutes as a proximity estimation period) and starts measuring. Then, when the proximity estimation period has elapsed, the key-side simple unlocking processing unit 112 switches the key device 10 to a simple unlocking control disabled state (one-touch unlocking control off). While the timer is measuring the proximity estimation period, the key device 10 (its lock device detection unit 111) also scans for unlocking radio waves, and can receive unlocking radio waves if they are being transmitted. If the lock device detection unit 111 receives unlocking radio waves while measuring the proximity estimation period, it sends an unlocking code to the lock device 50 and permits the execution of simple unlocking control. The flow of the unlocking control process, particularly the simple unlocking control process, in the locking / unlocking system 1 of this embodiment will be described with reference to Figures 7 to 9. Figure 7 is a flow diagram showing an example of the flow of the simple unlocking control process when the locking device 50 is in a locked state. When a simple operation is performed on the activation operation unit 52 of the locking device 50, the simple unlocking control process shown in Figure 8 is repeatedly executed.

[0097] In step S01, the lock-side control unit 51 initializes and starts a timer for measuring the transmission period of unlocking radio waves (connection establishment period) in response to a simple operation on the activation operation unit 52. In step S03, the lock-side control unit 51 starts transmitting the unlocking radio waves generated by the radio wave generation unit 55 to the outside.

[0098] In step S05, the lock-side control unit 51 determines whether the connection establishment period (10 seconds in this example) has elapsed, and if not, proceeds to step S07, and if so, ends the process. In step S07, the lock-side control unit 51 determines whether a connection request has been received from the key device 10 with which the pairing is attempted, and if a connection request has been received, proceeds to step S09, and if not, returns to step S03.

[0099] In step S09, the lock side control unit 51 establishes a one-to-one connection with the key device 10. In step S11, it is determined whether the one-to-one connection has been established, and if the connection has been established, the process proceeds to step S13, and if the connection has not been established, the process returns to step S03.

[0100] In step S13, the lock-side control unit 51 determines whether or not an unlocking code has been received from the key device 10. If the unlocking code has been received, the process proceeds to step S15; if the unlocking code has not been received, the process ends. In step S15, the authentication unit 512 performs authentication processing. That is, the unlocking information (e.g., the unlocking code) acquired from the key device 10 is compared with the authentication information of the key device 10 stored in the lock-side storage unit 57. If the unlocking information and the authentication information match in step S17, the process proceeds to step S19; if they do not match, the process ends.

[0101] In step S19, the lock-side control unit 51 controls the driving of the locking / unlocking mechanism 70. When the lock-side control unit 51 issues a command to drive the motor as an unlocking operation, the deadbolt in the locked state moves in the unlocking direction (retracts from the strike) and enters the unlocked state.

[0102] 8 is a flow diagram showing an example of the flow of the simple unlocking control process on the key device 10 side when the key device 10 is in the simple unlocking permission state. When the key device 10 is in the simple unlocking permission state, the process shown in FIG. 8 is repeatedly executed.

[0103] In step S51, the lock device detection unit 111 of the key device 10 scans for position determination radio waves and determines whether or not the position determination radio waves have been received. If the position determination radio waves have been received, the process proceeds to step S53, and if the position determination radio waves have not been received, the process ends.

[0104] In step S53, the key-side control unit 11 initializes a timer that measures the proximity estimation period and starts measurement. In step S55, the key-side control unit 11 determines whether the proximity estimation period (for example, 5 minutes) has elapsed, and if not, proceeds to step S57, and if so, proceeds to step S65.

[0105] In step S57, the lock device detection unit 111 of the key device 10 scans for unlocking radio waves and determines whether or not it has received them. If it has received them, the process proceeds to step S59; if it has not received them, the process returns to step S55.

[0106] In step S59, the key-side control unit 11 sends a one-to-one connection request to the paired lock device 50. In step S61, it is determined whether the one-to-one connection has been established, and if the connection has been established, the process proceeds to step S63; if the connection has not been established, the process ends. In step S63, the key-side control unit 11 sends an unlocking code to the paired lock device 50, and the process ends.

[0107] In step S65, which is reached if the proximity estimation period has elapsed in step S55, the key side control unit 11 estimates that its own device (key device 10) is in the vicinity of the lock device 50 (for example, at the entrance of a room), switches the state of the key device 10 from the simple unlocking permitted state to the simple unlocking disabled state, and terminates the processing.

[0108] 9 is a flow diagram showing an example of the flow of the simple unlocking control process on the key device 10 side when the key device 10 is in the simple unlocking disabled state. When the key device 10 is in the simple unlocking disabled state, the process shown in FIG. 10 is repeatedly executed.

[0109] In step S81, the key-side control unit 11 initializes the timer that measures the remote estimation period and starts measuring. In step S83, the lock device detection unit 111 of the key device 10 scans for position-determining radio waves and determines whether or not it has received them. If it has not received them, the process proceeds to step S85; if it has received them, the process returns to step S81. In step S85, the key-side control unit 11 determines whether the remote estimation period (for example, 10 minutes) has elapsed, and if not, returns to step S83, and if so, proceeds to step S87.

[0110] In step S87, the key-side control unit 11 assumes that the key device 10 is remote from the lock device 50 (e.g., the user is out), switches the state of the key device 10 from the simple unlocking disabled state to the simple unlocking permitted state, and ends the process. In other words, when the user returns home, the key device 10 is switched to a state where simple unlocking control is possible.

[0111] In the simple unlocking disabled state (even if a simple operation is performed on the lock device 50), the key device 10 does not transmit an unlocking code to the lock device 50 (it does scan for unlocking radio waves).

[0112] When the operator is in the room, the lock device 50 can be locked or unlocked by operating the thumb turn 59 regardless of the state of the key device 10.

[0113] The program according to this embodiment is a program that realizes at least some of the functions of the above-described locking / unlocking system 1. The program according to this embodiment is also a program that causes a computer to execute an operation method of the key device 10 that realizes the locking / unlocking process shown in Figures 8 and 9.

[0114] As described above, according to this embodiment, the lock device 50 can be unlocked by simply operating the lock device 50 (for example, one-touch operation of the start-up operation unit 52) ​​without using a physical key or operating the key device 10 (for example, starting an application program or entering a PIN number). Therefore, there is no need to manage a physical key, and the lock device 50 can be unlocked easily and quickly when returning home, for example.

[0115] On the other hand, since one-touch operation of the activation operation unit 52 is essential, the unlocking operation can accurately reflect the operator's intention, ensuring high usability.

[0116] Furthermore, the key device 10 estimates its own location based on the reception status of the position determination radio waves, and if it estimates that it is near the lock device 50, it automatically switches its own (key device 10) easy unlocking permitted state to easy unlocking disabled state. Also, if it estimates that the key device 10 is far from the lock device 50, it automatically switches its own (key device 10) easy unlocking disabled state to easy unlocking permitted state. This makes it possible to prevent the lock device 50 from being unlocked by a simple operation by a third party against the intention of the legitimate operator.

[0117] In particular, since GPS is not used to estimate the position of the key device 10, there is no need to consider GPS errors in locking and unlocking control, which avoids complicating the control and reduces the possibility of systematic errors.In addition, the position of the key device 10 can be accurately estimated.

[0118] Furthermore, the unlocking radio waves for simple unlocking and the position estimation radio waves for switching between permission and disallowance of simple unlocking (disabling simple unlocking) are both transmitted from the same source (lock device 50) and are mediums of short-range wireless communication signals (e.g., Bluetooth (registered trademark) signals). Because key device 10 switches between permission and disallowance of simple unlocking based on the unlocking radio waves and the position estimation radio waves, more accurate position estimation and reliable unlocking control are possible compared to using GPS or the like. Therefore, high usability and security can be achieved.

[0119] In the above embodiment, the unlocking information transmitted by the key device 10 that has received the unlocking radio waves and established a one-to-one connection with the lock device 50 is a predetermined unlocking code. However, the unlocking information may include other information (such as identification information unique to the key device 10) in addition to the unlocking code.

[0120] In addition, in the simple unlocking disabled state, the key device 10 performs a process of not transmitting the unlocking code, so that simple unlocking control is not performed. However, the simple unlocking disabled state is not limited to this, and for example, the key device 10 may perform a process of severing the one-to-one connection with the lock device 50, so that simple unlocking control is not performed. Also, the key device 10 may refuse to receive the unlocking radio waves, so that simple unlocking control is not performed.

[0121] In addition, some or all of the functional components of the locking device 50 in the locking / unlocking system 1 of this embodiment may be realized by a program executed by a computer included in the locking device 50, or may be realized by hardware. Also, some or all of the functional components of the key device 10 in the locking / unlocking system 1 of this embodiment may be realized by a program executed by a computer included in the key device 10, or may be realized by hardware.

[0122] The locking / unlocking system 1 of this embodiment is applicable to, for example, a handle lock in which the handle and locking device 50 are integrated, but it can also be implemented in the same way with a lock that is not integrated with the handle, or with a locking device 50 other than a handle lock, and similar effects can be obtained.

[0123] The present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the spirit and technical concept of the present invention. [Explanation of symbols]

[0124] 1 Locking and unlocking system 10 Key device 11 Key side control unit 12 Key communication unit 13 Key side interface unit 14 Key side storage section 50 Locking device (electronic lock) 51 Lock side control section 52 Start operation section 53 Management / setting operation section 54 Lock side communication unit 55 Radio wave generating unit 56 Lock side interface part 57 Lock side memory unit 58 Power supply section 59 Thumb turn 70 Locking / unlocking mechanism 110 Key side locking / unlocking processing section 111 Lock device detection unit 112 Key side simple unlocking processing unit 113 Locking / unlocking indicator 114 Key side registration unit 510 Lock side locking / unlocking processing section 511 Lock side simple unlocking processing section 512 Authentication Department 513 Lock side registration section 515 Locking and unlocking execution unit

Claims

1. A key device that allows the lock device to execute simple unlocking control of a locking / unlocking mechanism by performing a predetermined simple input operation on an operation unit of the lock device and having the lock device authenticate the operation unit, a process of transmitting the authentication information to the locking device when receiving an unlocking radio wave transmitted by the locking device; and (b) performing a process for disabling the execution of the simple unlocking control by the locking device when a location determination radio wave transmitted by the locking device is received within a predetermined period of time. A key device characterized by:

2. A key device that allows the lock device to execute simple unlocking control of a locking / unlocking mechanism by authenticating the lock device in addition to a predetermined simple input operation on the operation unit of the lock device, a simple unlocking processing unit that transitions the state between a simple unlocking permitted state and a simple unlocking disabled state; The simple unlocking permission state is a state in which execution of the simple unlocking control in the locking device is permitted, The simple unlocking disabled state is a state in which the simple unlocking control cannot be executed, The simple unlocking processing unit is When the position determination radio wave transmitted by the locking device is received for a predetermined period during the simple unlocking permitted state, the state is switched to the simple unlocking disabled state, When the position determination radio wave cannot be received for a predetermined period during the simple unlocking disabled state, the state is switched to the simple unlocking enabled state. A key device characterized by:

3. When the simple unlocking processing unit receives an unlocking radio wave, it transmits the authentication information to the lock device.

3. The key device according to claim 2.

4. The position determination radio wave and the unlocking radio wave are media for short-range wireless signals, The radio wave for determining the position has a longer radio wave reach than the radio wave for unlocking.

4. The key device according to claim 1 or 3.

5. A method for operating a key device, which includes a predetermined simple input operation on an operation unit of the lock device, and authentication by the lock device to cause the lock device to execute simple unlocking control of a locking / unlocking mechanism, a process in which the key device transmits the authentication information to the lock device when the key device receives an unlocking radio wave transmitted from the lock device; and a process for disabling the execution of the simple unlocking control by the lock device when the key device receives a location determination radio wave transmitted from the lock device for a predetermined period of time. A method for operating a lock device.

6. A method for operating a key device, which allows the lock device to execute simple unlocking control of a locking / unlocking mechanism by authenticating the lock device in addition to a predetermined simple operation on the operating unit of the lock device, The states of the key device include a simple unlocking permission state in which execution of the simple unlocking control in the lock device is permitted, and a simple unlocking prohibition state in which execution of the unlocking control is prohibited, a process of switching the key device in the simple unlocking permitted state to the simple unlocking disabled state when the key device receives a position determination radio wave transmitted from the lock device for a predetermined period of time; and a process of switching the key device in the simple unlocking disabled state to the simple unlocking permitted state when the key device is unable to receive the position determination radio wave for a predetermined period of time. A method for operating a lock device.

7. The key device has a process of transmitting the authentication information to the lock device when the key device receives an unlocking radio wave transmitted from the lock device.

7. The method for operating a locking device according to claim 6.

8. The position determination radio wave and the unlocking radio wave are media for short-range wireless signals, The radio wave for determining the position has a longer radio wave reach than the radio wave for unlocking.

8. A method for operating a locking device according to claim 5 or claim 7.

9. A locking / unlocking system having a locking device, a locking / unlocking mechanism, and a key device connected to the locking device for unlocking the locking device, The lock device has a lock-side control unit, an operation unit, a lock-side communication unit, and a radio wave generation unit, The lock-side control unit can transmit the unlocking radio waves and the position determination radio waves generated by the radio wave generating unit to the outside via the lock-side communication unit, The lock-side control unit is capable of executing simple unlocking control to unlock the locking / unlocking mechanism with a simple operation, The simple unlocking control is executed based on the reception of a predetermined input operation on the operation unit and the authentication of the key device, The key device has a simple unlocking processing unit, The simple unlocking processing unit a process of transmitting the authentication information to the lock device when the key device receives the unlocking radio wave; When the key device receives the position determination radio wave for a predetermined period of time, the key device performs at least a process for disabling the execution of the simple unlocking control by the lock device. A locking / unlocking system characterized by the above.

10. A locking / unlocking system having a locking device, a locking / unlocking mechanism, and a key device connected to the locking device for unlocking the locking device, The lock device has a lock-side control unit, an operation unit, a lock-side communication unit, and a radio wave generation unit, The lock-side control unit can transmit the unlocking radio waves and the position determination radio waves generated by the radio wave generating unit to the outside via the lock-side communication unit, The lock-side control unit is capable of executing simple unlocking control to unlock the locking / unlocking mechanism with a simple operation, The simple unlocking control is executed based on the reception of a predetermined input operation on the operation unit and the authentication of the key device, The key device has a simple unlocking processing unit, The simple unlocking processing unit is capable of switching the state of the key device between a simple unlocking permitted state in which execution of the simple unlocking control in the lock side control unit is permitted and a simple unlocking disabled state in which execution of the simple unlocking control in the lock side control unit is disabled, The simple unlocking processing unit is When the key device receives the position determination radio wave for a predetermined period during the simple unlocking permitted state, the key device switches to the simple unlocking disabled state. When the key device is unable to receive the position determination radio wave for a predetermined period during the simple unlocking disabled state, the key device is switched to the simple unlocking enabled state. A locking / unlocking system characterized by the above.

11. The simple unlocking processing unit transmits the authentication information to the lock device when the key device receives the unlocking radio wave. The locking / unlocking system according to claim 10.

12. The position determination radio wave and the unlocking radio wave are media for short-range wireless signals, The radio wave for determining the position has a longer radio wave reach than the radio wave for unlocking. The locking / unlocking system according to claim 9 or 11.

13. The lock side control unit is transmitting the location determination radio wave when the lock device is activated; When the predetermined input operation is received, the unlocking radio wave is transmitted for a predetermined period of time. The locking / unlocking system according to claim 9 or 10.

14. A program that causes a computer to execute the operating method according to claim 5 or 6.

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