Electric lock

Abstract

To provide an electric lock capable of supporting a user to correct the mounting status to the door.SOLUTION: An electric lock 20 is an electric lock that is attached detachably to a door provided at an entrance of a facility to control locking and unlocking the door. The electric lock 20 includes a detection unit 29 that detects a state equivalent to a separation of the electric lock 20 from the door or a state corresponding to poor installation of the electric lock 20 on the door and outputs a piece of first information as the detection result.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to an electric lock that is attached to a door provided at the entrance of a facility. [Background technology]

[0002] In recent years, the introduction of doors equipped with electric locks has been increasing in office buildings, condominiums, detached houses, etc. As a technology related to electric locks, Patent Document 1 discloses an electronic lock control method that is easy to manage and handle, and that allows the lock status to be checked or controlled from a remote location. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-242502 Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention provides an electric lock that can assist a user in correcting the installation state on a door. [Means for solving the problem]

[0005] An electric lock according to one embodiment of the present invention is an electric lock that is detachably attached to a door at the entrance / exit of a facility and controls the locking and unlocking of the door, and is equipped with a detection unit that detects a state corresponding to the electric lock being detached from the door or a state corresponding to a fault in the attachment of the electric lock to the door, and outputs first information as the detection result. [Effects of the Invention]

[0006] An electric lock according to one aspect of the present invention can assist a user in correcting the installation state of the lock on a door. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a block diagram showing a functional configuration of a notification system according to an embodiment. [Figure 2] FIG. 2 is a diagram for explaining how the electric lock according to the embodiment is attached to a door. [Figure 3] FIG. 3 is a block diagram showing the functional configuration of the electric lock according to the embodiment. [Figure 4] FIG. 4 is a diagram showing an example of the configuration of the retractable mechanism. [Figure 5] FIG. 5 is a sequence diagram of a first operational example of the notification system according to the embodiment. [Figure 6] FIG. 6 is a diagram showing an example of a notification screen displayed on the mobile terminal. [Figure 7] FIG. 7 is a sequence diagram of a second operation example of the notification system according to the embodiment. [Figure 8] FIG. 8 is a sequence diagram of a third operation example of the notification system according to the embodiment. [Figure 9] FIG. 9 is a block diagram showing the functional configuration of an electric lock according to the first modification. [Figure 10] FIG. 10 is a block diagram showing the functional configuration of an electric lock according to the second modification. [Figure 11] FIG. 11 is a block diagram showing the functional configuration of an electric lock according to the third modification. [Figure 12] FIG. 12 is a diagram showing a wire connecting an electric lock according to the fourth modification to a door. [Figure 13] FIG. 13 is a block diagram showing the functional configuration of an electric lock according to the fourth modification. [Figure 14] FIG. 14 is a schematic cross-sectional view showing the configuration of an electric lock according to the fifth modification. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, the embodiments will be described in detail with reference to the drawings. Note that the embodiments described below are all comprehensive or specific examples. The numerical values, shapes, materials, components, component placement and connection forms, steps, and step order shown in the following embodiments are merely examples and are not intended to limit the present invention. Furthermore, among the components in the following embodiments, components not recited in independent claims will be described as optional components.

[0009] It should be noted that the drawings are schematic diagrams and are not necessarily strict illustrations. In addition, in the drawings, substantially the same components are denoted by the same reference numerals, and overlapping descriptions may be omitted or simplified.

[0010] (Embodiment) [Notification system configuration] First, the configuration of a notification system according to an embodiment will be described below. Fig. 1 is a block diagram showing the functional configuration of the notification system according to an embodiment.

[0011] The notification system 10 shown in Fig. 1 is a system that can notify when an aftermarket electric lock 20, which is attached to an existing door of a facility 80, has detached from the door and when the installation of the electric lock 20 is poor. Hereinafter, the detachment of the electric lock 20 from the door and the poor installation of the electric lock 20 will be abbreviated as "detachment of the electric lock 20, etc." The notification system 10 includes the electric lock 20, a control system 30, a security system 40, a mobile terminal 50, and an information terminal 60.

[0012] First, the electric lock 20 will be described with reference to Fig. 2 and Fig. 3 in addition to Fig. 1. Fig. 2 is a diagram for explaining the attachment of the electric lock 20 to a door (view of the door from the indoor side). Fig. 2(a) is a diagram showing the electric lock 20 before it is attached to the door 81, and Fig. 2(b) is a diagram showing the electric lock 20 after it has been attached to the door. Fig. 3 is a block diagram showing the functional configuration of the electric lock 20.

[0013] The electric lock 20 is detachably attached to an existing door 81 of a facility 80 to provide the door with an authentication function using an authentication medium such as a mobile phone or an IC card, or a biometric authentication function. As shown in Fig. 2, the electric lock 20 is attached to the existing door 81 so as to cover the thumb turn 82 of the door 81 with an adhesive such as double-sided tape. The door 81 is, for example, a door installed at an entrance to the facility 80, and more specifically, the front door of the facility 80, or a back door of the facility 80.

[0014] As shown in Figures 2 and 3, the electric lock 20 includes an authentication unit 21, an information processing unit 22, a memory unit 23, a retractable mechanism 24, a drive unit 25, a communication unit 26, a battery 27, and a housing 28.

[0015] The authentication unit 21 acquires authentication information from an authentication medium, such as a mobile phone or an IC (Integrated Circuit) card, by performing short-range wireless communication with the authentication medium. The authentication unit 21 is realized by a wireless communication circuit, such as an RFID (Radio Frequency Identification) reader. The authentication unit 21 may acquire biometric authentication information from a user of the facility 80, in which case the authentication unit 21 is realized by a biometric sensor, such as a fingerprint sensor.

[0016] The information processing unit 22 drives the drive unit 25 (i.e., locks or unlocks the electric lock 20) ​​when the authentication unit 21 acquires authentication information (or biometric authentication information) that matches the registration information. Specifically, the information processing unit 22 drives the drive unit 25 by outputting a control signal to the drive unit 25. The information processing unit 22 is realized by, for example, a microcomputer, but may also be realized by a processor. Furthermore, the information processing unit 22 includes, as a functional component, a detection unit 29 that detects the removal of the electric lock 20, etc.

[0017] The functions of the information processing unit 22 (including the functions of the detection unit 29) are realized by, for example, a microcomputer or a processor constituting the information processing unit 22 executing a computer program stored in the storage unit .

[0018] The storage unit 23 is a storage device that stores registration information used to verify authentication information, computer programs executed by the information processing unit 22, etc. The storage unit 23 is realized by, for example, a semiconductor memory.

[0019] The retraction mechanism 24 is a mechanism that allows the detection unit 29 to detect the detachment of the electric lock 20, etc. Fig. 4 is a diagram showing an example of the configuration of the retraction mechanism 24, with Fig. 4(a) showing the retraction mechanism 24 when the electric lock 20 is properly attached to the door 81, and Fig. 4(b) showing the retraction mechanism 24 when the electric lock 20 is not properly attached. Fig. 4 is a schematic cross-sectional view of the electric lock 20.

[0020] The retraction mechanism 24 includes, for example, an elastic member 24x such as a spring, a protrusion 24y that is biased by the elastic member 24x so as to protrude from the housing 28 to the outside of the housing 28, and a sensor (not shown).

[0021] More specifically, the protrusion 24y protrudes toward the door 81 from the surface of the housing 28 that faces the door 81 when attached. As shown in (a) of FIG. 4, when the electric lock 20 is properly attached to the door 81, the protrusion 24y is pushed by the door 81 and is housed inside the housing 28 against the elastic force of the elastic member 24x. As shown in (b) of FIG. 4, when the electric lock 20 is not properly attached to the door 81, the protrusion 24y protrudes outside the housing 28. Although not shown, the protrusion 24y also protrudes outside the housing 28 when the electric lock 20 is detached from the door 81.

[0022] The sensor included in the retraction mechanism 24 senses the displacement (protrusion) of the protrusion 24y and outputs the sensing result to the detection unit 29. In this way, the retraction mechanism 24 can be used to detect the detachment of the electric lock 20 from the door 81, etc.

[0023] The drive unit 25 is a drive mechanism (including a circuit) connected to the thumb turn 82. The drive unit 25 has an electric motor, a drive circuit for the electric motor, and a transmission mechanism that transmits the driving force of the electric motor to the thumb turn 82 of the door 81. The electric motor is driven by power supplied from the battery 27, and the driving force of the electric motor is transmitted to the thumb turn 82 via the transmission mechanism, causing the deadbolt of the door 81 to move to the locked or unlocked position.

[0024] The communication unit 26 is configured by at least one of a communication circuit (communication module) for the electric lock 20 to communicate with other devices via a local communication network, and a communication circuit (communication module) for the electric lock 20 to communicate with other devices via a wide area communication network such as the Internet. The communication unit 26 communicates with, for example, the device controller 31 and the security controller 41 via the local communication network, and with the device control server 36 via the wide area communication network. The communication unit 26 performs, for example, wireless communication. There are no particular limitations on the communication standard used for communication by the communication unit 26.

[0025] The battery 27 is the power source for the electric lock 20, and supplies power to the authentication unit 21, the information processing unit 22, the memory unit 23, the sensor of the retraction mechanism 24, the drive unit 25, etc. The battery 27 is specifically a primary battery such as a dry cell battery, but may also be a secondary battery.

[0026] The housing 28 houses the authentication unit 21, the information processing unit 22, the storage unit 23, the retractable mechanism 24, the drive unit 25, the communication unit 26, and the battery 27. The housing 28 is formed of, for example, a resin material, but may also be formed of a metal material.

[0027] [Control system configuration] Next, the control system 30 will be described with reference to Fig. 1. The control system 30 is, for example, a system provided by a business operator such as a home appliance manufacturer to operate a device control service, and is a system for users of a facility 80 to control devices (not shown) such as air conditioning devices or lighting devices installed in the facility 80. The control system 30 includes a device controller 31 installed within the facility 80 and a device control server 36 installed outside the facility 80.

[0028] First, the device controller 31 will be described. The device controller 31 is, for example, an EMS (Energy Management System) controller with an energy management function, and is installed in the facility 80 to manage the power consumption of the devices installed in the facility 80. The device controller 31 also controls the devices installed within the premises of the facility 80. The device controller 31 is not limited to an EMS controller, and may be another home controller without an energy management function, or a gateway device. The device controller 31 includes a communication unit 32, an information processing unit 33, and a storage unit 34.

[0029] The communication unit 32 is composed of a communication circuit (communication module) that allows the device controller 31 to communicate with other devices via a local communication network, and a communication circuit (communication module) that allows the device controller 31 to communicate with other devices via a wide area communication network such as the Internet. The communication unit 32 communicates with, for example, the electric lock 20 and the security controller 41 via the local communication network, and with the device control server 36 via the wide area communication network. The communication unit 32 may perform wireless communication or wired communication. There are no particular limitations on the communication standard used for communication by the communication unit 32.

[0030] The information processing unit 33 processes information related to device control and information related to notifications such as the removal of the electric lock 20. The information processing unit 33 is realized, for example, by a microcomputer, but may also be realized by a processor or a dedicated circuit. The information processing unit 33 includes, as functional components, an acquisition unit 33a and an output unit 33b. The functions of the acquisition unit 33a and the output unit 33b are realized when the microcomputer or processor constituting the information processing unit 33 executes a computer program stored in the storage unit 34.

[0031] The storage unit 34 is a storage device that stores computer programs and the like executed by the information processing unit 33. The storage unit 34 is realized by, for example, a semiconductor memory.

[0032] Next, we will explain the device control server 36. The device control server 36 communicates with the security server 46 so that the control system 30 can cooperate with the security system 40. The device control server 36 includes a communication unit 37, an information processing unit 38, and a storage unit 39.

[0033] The communication unit 37 is a communication circuit (communication module) that enables the device control server 36 to communicate with the device controller 31, the security server 46, the mobile terminal 50, and the information terminal 60 via a wide area communication network such as the Internet. The communication unit 37 is, for example, a wired communication circuit that performs wired communication, but may also be a wireless communication circuit that performs wireless communication. There are no particular limitations on the communication standard used for communication by the communication unit 37.

[0034] The information processing unit 38 performs information processing relating to notifications such as the removal of the electric lock 20. The information processing unit 38 is realized, for example, by a microcomputer, but may also be realized by a processor or a dedicated circuit. The information processing unit 38 includes, as functional components, an acquisition unit 38a and an output unit 38b. The functions of the acquisition unit 38a and the output unit 38b are realized when the microcomputer or processor constituting the information processing unit 38 executes a computer program stored in the storage unit 39.

[0035] The storage unit 39 is a storage device that stores computer programs executed by the information processing unit 38. The storage unit 39 is realized by, for example, an HDD (Hard Disk Drive), but may also be realized by a semiconductor memory.

[0036] [Security system configuration] Next, the security system 40 will be described with reference to Fig. 1. The security system 40 is a system provided by a business operator (hereinafter also referred to as a service operator) that operates a home security service or the like. The security system 40 is, for example, a crime prevention system that performs information processing to notify the outside of the facility 80 that a security abnormality has occurred in the facility 80. Specifically, the security system 40 includes a security controller 41, a sensor 45, and a security server 46. First, the security controller 41 will be described.

[0037] When the security controller 41 detects an intruder into the facility 80 using the sensor 45 while the alert mode is enabled, it assumes that an abnormality has occurred in the facility 80 and transmits (outputs) alarm information to the security server 46 (outside the facility 80). When a user of the facility 80 leaves the facility 80, the user can set the security system 40 to the alert mode (in other words, enable the alert mode) by performing an operation such as inserting a predetermined authentication medium into the security controller 41. The security controller 41 includes a communication unit 42, an information processing unit 43, and a storage unit 44.

[0038] The communication unit 42 is composed of a communication circuit (communication module) that allows the security controller 41 to communicate with other devices via a local communication network, and a communication circuit (communication module) that allows the security controller 41 to communicate with other devices via a wide area communication network such as the Internet. The communication unit 42 communicates with, for example, the electric lock 20, the device controller 31, and the sensor 45 via the local communication network, and with the security server 46 via the wide area communication network. The communication unit 42 may perform wireless communication or wired communication. There are no particular limitations on the communication standard used for communication by the communication unit 42.

[0039] The information processing unit 43 performs information processing and the like to notify the occurrence of a security abnormality within the premises of the facility 80. The information processing unit 43 is realized by, for example, a microcomputer, but may also be realized by a processor or a dedicated circuit. The information processing unit 43 includes, as functional components, an acquisition unit 43a and an output unit 43b. The functions of the acquisition unit 43a and the output unit 43b are realized when the microcomputer or processor constituting the information processing unit 43 executes a computer program stored in the storage unit 44.

[0040] The storage unit 44 is a storage device that stores computer programs and the like executed by the information processing unit 43. The storage unit 44 is realized by, for example, a semiconductor memory.

[0041] Next, the sensor 45 will be described. The sensor 45 is a sensor for detecting the occurrence of a security abnormality in the facility 80. Specifically, the sensor 45 is a security sensor such as a window or door open / close sensor, a glass breakage sensor, or a human presence sensor. The security system 40 is required to be equipped with at least one sensor 45, but may be equipped with multiple sensors 45.

[0042] Next, the security server 46 will be described. The security server 46 performs information processing to arrange for a visitor to the facility 80 based on the notification information received from the security controller 41. As a result of this information processing, an operator of the business that operates the security system 40 arranges for the visitor, and the visitor rushes to the facility 80. The operator also reports to the police station or the like as necessary. In the embodiment, the operator refers to a person who operates a computer or the like.

[0043] Next, we will explain the mobile terminal 50 and the information terminal 60. The mobile terminal 50 is a portable information terminal used by users of the facility 80 (residents of the facility 80 if the facility 80 is a residence) to receive notifications regarding the removal of the electric lock 20, etc. Specifically, the mobile terminal 50 is a smartphone, a tablet terminal, or the like.

[0044] When the facility 80 is an office building or an apartment building, the information terminal 60 is used by the management company of the facility 80 (more specifically, an employee of the management company) to receive notifications regarding the removal of the electric lock 20. The information terminal 60 is, for example, a personal computer, but may also be a smartphone or a tablet terminal.

[0045] [Example 1] A retrofit electric lock 20 is more likely to come off the door 81 than an electric lock that is pre-assembled and integrated with the door 81. In addition, retrofit electric locks 20 may be installed by ordinary users, and are prone to being installed poorly on the door 81. As a countermeasure against such cases of the electric lock 20 coming off, the notification system 10 can notify the user of the case. Figure 5 is a sequence diagram of operation example 1 of the notification system 10.

[0046] First, the detection unit 29 of the electric lock 20 detects a state corresponding to the detachment of the electric lock 20 (S11). As described above, when the electric lock 20 is properly attached to the door 81, the protrusion 24y of the retraction mechanism 24 provided in the electric lock 20 is pushed by the door 81 and is housed in the housing 28 against the elastic force (biasing force) of the elastic member 24x. When the electric lock 20 is detached from the door 81 or when the attachment state of the electric lock 20 to the door 81 is improper, the force applied from the door 81 to the protrusion 24y decreases, and the protrusion 24y protrudes outward from the housing 28 due to the elastic force of the elastic member 24x. The detection unit 29 detects the protruding state of the protrusion 24y based on the sensing result of the sensor provided in the retraction mechanism 24. In other words, the detection unit 29 can detect a state corresponding to the detachment of the electric lock 20 (a state in which the protrusion 24y protrudes) using the retraction mechanism 24 (protrusion 24y).

[0047] Furthermore, upon detecting a state equivalent to detachment or the like (the protrusion 24y protruding), the detection unit 29 outputs first information as a detection result (S12).

[0048] The first information is information indicating that the electric lock 20 has been detached from the door 81 or that a defect has occurred in the installation of the electric lock 20 to the door 81. The first information includes identification information of the electric lock 20. The identification information of the electric lock 20 is, for example, the device ID of the electric lock 20.

[0049] The detection unit 29 causes the communication unit 26 to transmit the output first information to the device controller 31. In other words, the communication unit 26 transmits the output first information to the device controller 31 (S13).

[0050] The communication unit 32 of the device controller 31 receives the first information. The acquisition unit 33a acquires the received first information (S14), and the output unit 33b outputs the second information upon acquisition of the first information (S15).

[0051] The second information is information for notifying about detachment of the electric lock 20 from the door 81 or a poor installation state of the electric lock 20 on the door 81. The second information includes identification information of the device controller 31. The second information may also include identification information of the electric lock 20 that was included in the first information. The output unit 33b causes the communication unit 32 to transmit the second information output in step S15 to the device control server 36. In other words, the communication unit 32 transmits the output second information to the device control server 36 (S16).

[0052] The communication unit 37 of the device control server 36 receives the second information. Here, notification destination information in which identification information of the device controller 31 is associated with identification information of the notification destination mobile terminal 50 is pre-stored (registered) in the storage unit 39 of the device control server 36. The identification information of the mobile terminal 50 is, for example, the ID of a notification application program installed on the mobile terminal 50.

[0053] The acquisition unit 38a acquires the second information (S17), and the output unit 38b outputs the second information upon acquisition of the first information (S18). Here, the output unit 38b can determine the mobile terminal 50 to be notified based on the identification information of the device controller 31 included in the second information acquired in step S17 and the above-mentioned notification destination information.

[0054] The output unit 38b causes the communication unit 37 to transmit the second information output in step S18 to the determined portable terminal 50. In other words, the communication unit 37 transmits the output second information to the portable terminal 50 (S19).

[0055] The processes of steps S17 to S19 can also be said to be processes of relaying the second information output by the output unit 33b of the device controller 31 to the mobile terminal 50. In other words, in steps S15 and S16, the output unit 33b can also be said to be outputting the second information to the mobile terminal 50.

[0056] The mobile terminal 50 receives the second information and displays a notification screen based on the received second information (S20). Fig. 6 is a diagram showing an example of the notification screen displayed on the mobile terminal 50. The notification screen notifies the user of the facility 80 who is carrying the mobile terminal 50 that the electric lock 20 has been removed, etc.

[0057] As described above, the notification system 10 includes the acquisition unit 33a that acquires first information related to the removal of the electric lock 20, and the output unit 33b that outputs second information for notifying the user of the electric lock 20 based on the acquired first information. Specifically, the output unit 33b outputs the second information to the mobile terminal 50 of the user of the facility 80.

[0058] Such a notification system 10 can notify users of the facility 80 (or residents of the facility 80 if the facility 80 is a residence) of the removal of the electric lock 20. The notification system 10 can prevent problems from occurring due to the removal of the electric lock 20.

[0059] In the first operational example, the notification destination is not limited to the mobile terminal 50 of the user of the facility 80. For example, the output unit 33b may output the second information to the information terminal 60 of the management company of the facility 80.

[0060] In this case, notification destination information in which identification information of the device controller 31 is associated with identification information of the notification destination information terminal 60 is pre-stored (registered) in the storage unit 39 of the device control server 36. The output unit 38b can determine the notification destination information terminal 60 based on the identification information of the device controller 31 included in the acquired second information and the above-mentioned notification destination information. Therefore, in step S19, the output unit 38b can cause the communication unit 37 to transmit the second information to the determined information terminal 60. As a result, for example, a notification screen is displayed on a display unit provided in the information terminal 60.

[0061] Furthermore, the output unit 33b may output the second information to the security system 40 (security server 46). The security system 40 is an example of a system of a service provider that provides a security service to the facility 80.

[0062] In this case, in step S19, the output unit 38b causes the communication unit 37 to transmit the second information to the security server 46. As a result, for example, a notification screen is displayed on a display unit provided in an information terminal (not shown) that is communicatively connected to the security server 46.

[0063] If the security server 46 associates the identification information of the device controller 31 with information about the user of the facility 80 (such as an address or contact information), the service provider can take action in the event of the electric lock 20 being removed. The action here may include, for example, notifying the user of the facility 80 or visiting the facility 80 for repairs.

[0064] [Example 2] If the communication unit 26 of the electric lock 20 supports communication via a wide area communication network, the electric lock 20 may transmit the first information to the device control server 36 instead of the device controller 31. Fig. 7 is a sequence diagram of an operation example 2 of such a notification system 10.

[0065] First, the detection unit 29 of the electric lock 20 detects a state corresponding to the electric lock 20 being detached or the like (S21), and this triggers output of first information as the detection result (S22). The processing of steps S21 and S22 is the same as the processing of steps S11 and S12 in operation example 1. The first information includes the identification information of the electric lock 20.

[0066] Furthermore, the detection unit 29 causes the communication unit 26 to transmit the output first information to the device control server 36. In other words, the communication unit 26 transmits the output first information to the device control server 36 (S23).

[0067] The communication unit 37 of the device control server 36 receives the first information. Here, notification destination information in which the identification information of the electric lock 20 is associated with the identification information of the notification destination mobile terminal 50 is pre-stored (registered) in the storage unit 39 of the device control server 36. The identification information of the mobile terminal 50 is, for example, an ID linked to a notification application program installed on the mobile terminal 50.

[0068] The acquisition unit 38a acquires the first information (S24), and the output unit 38b outputs the second information upon acquisition of the first information (S25). Here, the output unit 38b can determine the mobile terminal 50 to be notified based on the identification information of the electric lock 20 included in the first information acquired in step S24 and the above-mentioned notification destination information.

[0069] The output unit 38b causes the communication unit 37 to transmit the second information output in step S25 to the determined portable terminal 50. In other words, the communication unit 37 transmits the output second information to the portable terminal 50 (S26). In other words, it can be said that the output unit 38b outputs the second information to the portable terminal 50.

[0070] The mobile terminal 50 receives the second information and displays a notification screen as shown in Fig. 6 based on the received second information (S27). The notification screen notifies the user of the facility 80 who is carrying the mobile terminal 50 that the electric lock 20 has been removed, etc.

[0071] As described above, the notification system 10 includes the acquisition unit 38a that acquires first information related to the removal of the electric lock 20, and the output unit 38b that outputs second information for notifying the user of the electric lock 20 based on the acquired first information. Specifically, the output unit 38b outputs the second information to the mobile terminal 50 of the user of the facility 80.

[0072] Such a notification system 10 can notify users of the facility 80 (or residents of the facility 80 if the facility 80 is a residence) of the removal of the electric lock 20. The notification system 10 can prevent problems from occurring due to the removal of the electric lock 20.

[0073] In the second operational example, the notification destination is not limited to the mobile terminal 50 of the user of the facility 80. For example, the output unit 38b may output the second information to the information terminal 60 of the management company of the facility 80.

[0074] In this case, notification destination information in which the identification information of the electric lock 20 is associated with the identification information of the information terminal 60 to be notified is pre-stored (registered) in the storage unit 39 of the device control server 36. The output unit 38b can determine the information terminal 60 to be notified based on the identification information of the electric lock 20 included in the acquired first information and the above-mentioned notification destination information. Therefore, in step S26, the output unit 38b can cause the communication unit 37 to transmit the second information to the determined information terminal 60. As a result, for example, a notification screen is displayed on the display unit provided in the information terminal 60.

[0075] Furthermore, the output unit 38b may output the second information to the security system 40 (security server 46). The security system 40 is an example of a system of a service provider that provides a security service to the facility 80.

[0076] In this case, in step S26, the output unit 38b causes the communication unit 37 to transmit the second information to the security server 46. As a result, for example, a notification screen is displayed on a display unit provided in an information terminal (not shown) that is communicatively connected to the security server 46.

[0077] If the security server 46 associates the identification information of the electric lock 20 with the information of the user of the facility 80 (such as an address or contact information), the service provider can take action in the event of the electric lock 20 being removed. The action here may include, for example, notifying the user of the facility 80 or visiting the facility 80 for repairs.

[0078] [Example 3] Furthermore, the electric lock 20 may transmit the first information to the security controller 41. Fig. 8 is a sequence diagram of a third operational example of such a notification system 10.

[0079] First, the detection unit 29 of the electric lock 20 detects a state corresponding to the electric lock 20 being detached or the like (S31), and this triggers output of first information as the detection result (S32). The processing of steps S31 and S32 is the same as the processing of steps S11 and S12 in operation example 1. The first information includes the identification information of the electric lock 20.

[0080] Furthermore, the detection unit 29 causes the communication unit 26 to transmit the output first information to the security controller 41. In other words, the communication unit 26 transmits the output first information to the security controller 41 (S33).

[0081] The communication unit 42 of the security controller 41 receives the first information. The acquisition unit 43a acquires the received first information (S34), and the output unit 43b outputs the second information upon acquisition of the first information (S35).

[0082] The second information is information for notifying the user that the electric lock 20 has been removed from the door 81 or that the electric lock 20 is not properly attached to the door 81. The second information includes identification information for the security controller 41. The second information may also include the identification information for the electric lock 20 that was included in the first information. The output unit 43b causes the communication unit 42 to transmit the second information output in step S35 to the security server 46. In other words, the communication unit 42 transmits the output second information to the security server 46 (S36). The communication unit 47 of the security server 46 receives the second information. As a result, for example, a notification screen is displayed on a display unit provided in an information terminal (not shown) that is communicatively connected to the security server 46. The processing of steps S35 and S36 can be rephrased as notification processing to the service provider regarding the removal of the electric lock 20, etc.

[0083] The storage unit 49 of the security server 46 associates the identification information of the security controller 41 with information (such as address or contact information) of the user of the facility 80. When the second information is received by the security server 46, the service provider can take action in response to the removal of the electric lock 20. The action taken here may include, for example, notifying the user of the facility 80 or visiting the facility 80 (to repair the electric lock 20).

[0084] As described above, the notification system 10 includes an acquisition unit 43a that acquires first information regarding the removal of the electric lock 20, and an output unit 43b that outputs second information for notifying the removal of the electric lock 20 based on the acquired first information. Specifically, the output unit 43b outputs the second information to a system (security system 40, in other words, security server 46) of a service provider that provides security services to the facility 80.

[0085] Such a notification system 10 can notify the service provider of the removal of the electric lock 20. The notification system 10 can prevent troubles caused by the removal of the electric lock 20.

[0086] In the third operational example, the notification destination is not limited to the security server 46. For example, the output unit 43b may output the second information to the mobile terminal 50 of the user of the facility 80.

[0087] In this case, notification destination information in which identification information of the security controller 41 is associated with identification information of the information terminal 60 to be notified is pre-stored (registered) in the security server 46. The security server 46 can determine the mobile terminal 50 to be notified based on the identification information of the security controller 41 included in the acquired second information and the above-mentioned notification destination information. Therefore, after step S36, the security server 46 can transmit the second information to the determined mobile terminal 50. As a result, for example, a notification screen is displayed on a display unit provided in the mobile terminal 50.

[0088] Furthermore, the output unit 43b may output the second information to the information terminal 60 of the management company of the facility 80. In this case, notification destination information in which identification information of the security controller 41 is associated with identification information of the information terminal 60 to be notified is pre-stored (registered) in the security server 46. The security server 46 can determine the information terminal 60 to be notified based on the identification information of the security controller 41 included in the acquired second information and the above-mentioned notification destination information. Therefore, after step S36, the security server 46 can transmit the second information to the determined information terminal 60. As a result, for example, a notification screen is displayed on a display unit provided in the information terminal 60.

[0089] [Variation 1 of the electric lock] In the above embodiment, the detection unit 29 of the electric lock 20 detects a state equivalent to the detachment of the electric lock 20 using the retraction mechanism 24, but the detection unit 29 may also detect a state equivalent to the detachment of the electric lock 20 using a different method. Below, an electric lock according to Modification 1 will be described, which detects a state equivalent to the detachment of the electric lock using components other than the retraction mechanism 24. Figure 9 is a block diagram showing the functional configuration of the electric lock according to Modification 1.

[0090] An electric lock 20a according to a first modification shown in FIG. 9 includes an infrared light module 24a instead of the retractable mechanism 24.

[0091] The infrared light module 24a emits infrared light (infrared rays) and receives the emitted infrared light reflected by the door 81. The infrared light module 24a includes a light-emitting element that emits infrared light toward the door 81 when the electric lock 20a is attached to the door 81, and a light-receiving element that receives the infrared light emitted by the light-emitting element and reflected by the door 81. The light-emitting element is realized, for example, by an LED (Light Emitting Diode) and emits infrared light periodically or steadily. The light-receiving element is realized, for example, by a photodiode. The light-receiving element senses the amount of infrared light received and outputs the sensing result (amount of received light) to the detection unit 29.

[0092] When the electric lock 20a is properly attached to the door 81, the amount of infrared light received by the light receiving element is large. When the electric lock 20a is detached from the door 81 or when the electric lock 20a is not properly attached to the door 81, the amount of infrared light reflected by the door 81 decreases, and therefore the amount of infrared light received by the light receiving element is small.

[0093] Therefore, the detection unit 29, for example, periodically causes the light-emitting element to emit light, monitors the amount of light received by the light-receiving element when the light-emitting element emits light, and detects a state where the amount of received light is below a predetermined value. In other words, the detection unit 29 can use the infrared light module 24a to detect a state corresponding to the detachment of the electric lock 20a (a state where the amount of received light is reduced). Note that the electric lock 20a can also detect the detachment of the electric lock 20a using visible light or ultrasonic waves instead of infrared light.

[0094] The notification system 10 described above may include an electric lock 20a instead of the electric lock 20. That is, in the above-described operation examples 1 to 3, the electric lock 20 may be read as the electric lock 20a.

[0095] [Variation 2 of the electric lock] The following describes an electric lock according to Modification 2, which detects the removal of the electric lock using components other than the retraction mechanism 24. Fig. 10 is a block diagram showing the functional configuration of the electric lock according to Modification 2. An electric lock 20b according to Modification 2 shown in Fig. 10 includes an acceleration sensor 24b instead of the retraction mechanism 24.

[0096] The acceleration sensor 24b senses acceleration (an example of an external force) occurring in the electric lock 20b, and outputs the sensing result to the detection unit 29.

[0097] When the electric lock 20b comes off the door 81 and hits the ground, a large acceleration occurs in the electric lock 20b (an impact is applied). Also, if an attempt is made to forcibly remove the electric lock 20b, a relatively large acceleration occurs in the electric lock 20b. Therefore, the detection unit 29 monitors the sensing results of the acceleration sensor 24b and detects a state in which an acceleration equal to or greater than a predetermined value occurs in the electric lock 20b. In other words, the detection unit 29 can use the acceleration sensor 24b to detect a state equivalent to the detachment of the electric lock 20b (a state in which an external force is applied to the electric lock 20b).

[0098] The electric lock 20b may be provided with a sensor that senses an external force acting on the electric lock 20b. Examples of such a sensor include an acceleration sensor 24b, a gyro sensor, or a vibration sensor. The electric lock 20b may output the first information when an external force of a predetermined value or greater is applied to the electric lock 20b.

[0099] The above-described notification system 10 may include an electric lock 20b instead of the electric lock 20. That is, in the above-described operation examples 1 to 3, the electric lock 20 may be read as the electric lock 20b.

[0100] [Electric lock variation 3] The following describes an electric lock according to Modification 3, which detects the removal of the electric lock using components other than the retraction mechanism 24. Fig. 11 is a block diagram showing the functional configuration of the electric lock according to Modification 3. The electric lock 20c according to Modification 3 shown in Fig. 11 includes a current sensor 24c instead of the retraction mechanism 24.

[0101] The current sensor 24c senses the current (hereinafter also referred to as the drive current) that flows through the electric motor when the drive unit 25 is driven (the thumb turn 82 is turned) to lock or unlock the door 81, and outputs the sensing result (current value) to the detection unit 29. The current sensor 24c may be incorporated into the drive unit 25.

[0102] When the electric lock 20c is properly attached to the door 81, the current value of the drive current is within a predetermined range. In contrast, if the electric lock 20c is not properly attached to the door 81 and the drive unit 25 and thumb turn 82 are connected but the connection is poor, a force (torque) greater than normal is required to turn the thumb turn 82. In other words, the drive current rises above the predetermined range.

[0103] In addition, if the electric lock 20c is not properly attached to the door 81 and the drive unit 25 is not connected to the thumb turn 82, or if the electric lock 20c is detached from the door 81, there is no resistance when turning the thumb turn 82, and the drive current falls below the above-mentioned specified range.

[0104] Therefore, the detection unit 29 monitors the sensing result of the current sensor 24c and detects a state in which the current value of the drive current is outside a predetermined range. In other words, the detection unit 29 can use the current sensor 24c to detect a state equivalent to the detachment of the electric lock 20c (a state in which the current value of the drive current is outside a predetermined range).

[0105] The notification system 10 described above may include an electric lock 20c instead of the electric lock 20. That is, in the above-described operation examples 1 to 3, the electric lock 20 may be replaced with the electric lock 20c.

[0106] [Variation 4 of the electric lock] The following describes an electric lock according to Modification 4, which detects the removal of the electric lock using components other than the retractable mechanism 24. Fig. 12 is a diagram showing a wire connecting the electric lock according to Modification 4 to the door 81. Fig. 13 is a block diagram showing the functional configuration of the electric lock according to Modification 4.

[0107] 12, one end of the wire 70 is attached to the door 81, and the other end of the wire 70 is attached to the electric lock 20d according to Modification 4. The connection of the electric lock 20d and the door 81 by the wire 70 is performed at the same time as attaching the electric lock 20d to the door 81.

[0108] Here, one end of the wire 70 is firmly attached to the door 81 using at least one of an adhesive, a magnet, and a screw, etc. Therefore, even if the electric lock 20d is detached, the one end of the wire 70 will not come off the door 81.

[0109] In contrast, the other end of the wire 70 is attached so as to be easily detached when the weight of the electric lock 20d is applied. For example, a plug (or a similar structure) used for a microphone or earphone is used at the other end of the wire 70, and the electric lock 20d is provided with a jack into which the plug can be inserted or removed.

[0110] 13, the electric lock 20d has a wire sensor 24d instead of the retractable mechanism 24. The wire sensor 24d senses that the plug provided at the other end of the wire 70 has been removed from the jack provided in the electric lock 20d, and outputs the sensing result to the detection unit 29. The wire sensor 24d is realized by, for example, a circuit, and senses whether the electrical connection between the jack and the plug is on or off.

[0111] When the electric lock 20d is detached from the door 81, the other end of the wire 70 becomes detached from the electric lock 20d. Therefore, the detection unit 29 monitors the sensing result of the wire sensor 24d and detects the state in which the other end of the wire 70 has become detached from the electric lock 20d. In other words, the detection unit 29 can use the wire sensor 24d to detect a state equivalent to the detachment of the electric lock 20d (a state in which the other end of the wire 70 has become detached from the electric lock 20d).

[0112] The above-described notification system 10 may include an electric lock 20d instead of the electric lock 20. That is, in the above-described operation examples 1 to 3, the electric lock 20 may be replaced with the electric lock 20d.

[0113] [Variation 5 of the electric lock] The following describes an electric lock according to a fifth modification, which detects the removal of the electric lock or the like using components other than the retractable mechanism 24. Fig. 14 is a schematic cross-sectional view showing the configuration of the electric lock according to the fifth modification.

[0114] As shown in Fig. 14, the electric lock 20e according to the fifth modification includes a first main body 20e1 and a second main body 20e2. The first main body 20e1 is located on the thumb turn 82 side of the door 81 and incorporates at least the drive unit 25 and the first wireless communication unit 24e1. The second main body 20e2 is located on the cylinder 83 side of the door 81 and incorporates at least the authentication unit 21 and the second wireless communication unit 24e2. Although not shown, the electric lock 20e, like the electric lock 20, includes an information processing unit 22 (including a detection unit 29), a memory unit 23, a communication unit 26, and a battery 27, and these components are housed in either the first main body 20e1 or the second main body 20e2.

[0115] A door 81 is positioned between the first main body 20e1 and the second main body 20e2, and in this state, the first wireless communication unit 24e1 and the second wireless communication unit 24e2 communicate periodically or steadily. The communication range of the first wireless communication unit 24e1 and the second wireless communication unit 24e2 is limited, and if one of the first main body 20e1 and the second main body 20e2 is removed from the door 81, the first wireless communication unit 24e1 and the second wireless communication unit 24e2 will no longer be able to communicate.

[0116] Therefore, the detection unit 29 periodically wirelessly transmits a signal from one of the first wireless communication unit 24e1 and the second wireless communication unit 24e2 to the other, and detects a state in which no response to the signal is received from the other of the first wireless communication unit 24e1 and the second wireless communication unit 24e2. In other words, based on the state of wireless communication between the first wireless communication unit 24e1 and the second wireless communication unit 24e2, the detection unit 29 can detect a state in which wireless communication between the first wireless communication unit 24e1 and the second wireless communication unit 24e2 is impossible as a state corresponding to the detachment of the electric lock 20e, etc.

[0117] In this case, one of the first wireless communication unit 24e1 and the second wireless communication unit 24e2 is realized by a wireless communication circuit that actively communicates, while the other of the first wireless communication unit 24e1 and the second wireless communication unit 24e2 may be realized by a wireless communication circuit that actively communicates or may be realized by a wireless communication circuit that passively communicates. For example, one of the first wireless communication unit 24e1 and the second wireless communication unit 24e2 may be realized by an RFID reader, and the other of the first wireless communication unit 24e1 and the second wireless communication unit 24e2 may be realized by an RFID tag (passive tag).

[0118] In addition, the detection unit 29 may detect a state in which the received signal strength drops below a predetermined value as a state corresponding to the detachment of the electric lock 20e, based on the received signal strength at the other of the first wireless communication unit 24e1 and the second wireless communication unit 24e2 when a signal is wirelessly transmitted from one of the first wireless communication unit 24e1 and the second wireless communication unit 24e2 to the other.

[0119] The above-described notification system 10 may include an electric lock 20e instead of the electric lock 20. That is, in the above-described operation examples 1 to 3, the electric lock 20 may be replaced with the electric lock 20e.

[0120] [Other variations] In the operation examples 1 to 3 of the above embodiment, notification of removal of the electric lock 20, etc., was performed using the device control server 36 or the security server 46. However, notification of removal of the electric lock 20, etc., may be performed using a dedicated server for notification or another server, such as a server managed by another business, instead of the device control server 36 or the security server 46. The same applies to notification of removal of the electric locks 20a to 20e, etc. Note that the other business refers to a business other than the business that operates the device control service and the business that operates the home security service.

[0121] Furthermore, in addition to or instead of the methods described in Operation Examples 1 to 3, the notification of the removal of the electric lock 20 may be realized by the electric lock 20 itself emitting a sound. In this case, the electric lock 20 is provided with a sound output unit such as a speaker or buzzer inside the housing 28, and the detection unit 29 causes the sound output unit to emit a sound when it detects a state corresponding to the removal of the electric lock 20. In this way, notification of the removal of the electric lock 20 is realized to people located within the facility 80. Notification of the removal of the electric locks 20a to 20e may also be realized by the sound output unit provided in the electric lock.

[0122] Furthermore, in the above embodiment, the security system 40 has been described as a crime prevention system, but it may also be a disaster prevention system. In this case, for example, when the security controller 41 detects a fire or the like in the facility 80 using the sensor 45 while the alert mode is active, it assumes that an abnormality has occurred in the facility 80 and notifies the security server 46 of this fact. In response, an operator of the business operator that operates the security system 40 arranges for a visitor to rush to the facility 80. The operator also notifies the fire department or the like as necessary. In this case, the sensor 45 may be a heat sensor, a smoke sensor, a gas leak sensor, or the like.

[0123] The security system 40 may also be a monitoring system. In this case, the security controller 41 uses the sensor 45 to monitor the health status of the elderly people residing in the facility 80 when the alert mode is enabled, and if an abnormality is detected, notifies the security server 46 of the occurrence. In response, an operator of the business that operates the security system 40 arranges for a visitor to rush to the facility 80. The operator also contacts the elderly person's family (for example, a family member living far away). In this case, the sensor 45 is a monitoring sensor, a vital sign sensor, or the like.

[0124] [Effects, etc.] As described above, the notification system 10 is detachably attached to the door 81 provided at the entrance / exit of the facility 80 and includes an acquisition unit 33a (acquisition unit 38a, acquisition unit 43a) that acquires first information regarding the detachment of the electric lock 20 from the door 81, which controls the locking and unlocking of the door 81, or a poor installation state of the electric lock 20 on the door 81, and an output unit 33b (output unit 38b, output unit 43b) that outputs second information to notify the user regarding the detachment of the electric lock 20 from the door 81 or a poor installation state of the electric lock 20 on the door 81 based on the acquired first information.

[0125] Such a notification system 10 can notify of the removal of the electric lock 20. The notification system 10 can also assist in correcting the state in which the electric lock 20 is attached to the door.

[0126] Furthermore, for example, the output unit 33b outputs the second information to the mobile terminal 50 of the user of the facility 80.

[0127] Such a notification system 10 can notify users of the facility 80 (if the facility 80 is a residence, residents of the facility 80) of the removal of the electric lock 20, etc.

[0128] Furthermore, for example, the output unit 33b outputs the second information to the information terminal 60 of the management company of the facility 80.

[0129] Such a notification system 10 can notify the management company of the facility 80 of the removal of the electric lock 20, etc.

[0130] Furthermore, for example, the output unit 33b outputs the second information to a system of a service provider that provides security services to the facility 80.

[0131] Such a notification system 10 can notify the service provider of the removal of the electric lock 20, etc.

[0132] In addition, for example, the electric lock 20 outputs the first information when it detects that the electric lock 20 has been removed from the door 81 or that the electric lock 20 is not properly installed. The acquisition unit 33a acquires the first information from the electric lock 20.

[0133] Such a notification system 10 can notify the user of the removal of the electric lock 20, etc., based on the first information output from the electric lock 20.

[0134] In addition, the notification method executed by a computer such as the notification system 10 includes an acquisition step of acquiring first information regarding the detachment of the electric lock 20, which is detachably attached to the door 81 at the entrance / exit of the facility 80 and controls the locking and unlocking of the door 81, from the door 81 or a poor installation state of the electric lock 20, and an output step of outputting second information for notifying the user regarding the detachment of the electric lock 20 from the door 81 or a poor installation state of the electric lock 20 based on the acquired first information.

[0135] Such a notification method can notify the user of the removal of the electric lock 20. Such a notification method can assist in correcting the state in which the electric lock 20 is attached to the door.

[0136] The electric lock 20 is detachably attached to a door 81 provided at the entrance of the facility 80, and controls the locking and unlocking of the door 81. The electric lock 20 includes a detection unit 29 that detects a state corresponding to the electric lock 20 being detached from the door 81 or a state corresponding to a fault in the attachment of the electric lock 20 to the door 81, and outputs first information as the detection result.

[0137] Such an electric lock 20 can detect the removal of the electric lock 20. The electric lock 20 can assist in correcting the state in which the electric lock 20 is attached to the door.

[0138] The electric lock 20 further includes a protrusion 24y that is housed in a housing 28 of the electric lock 20 when the electric lock 20 is attached to the door 81, and that protrudes outward from the housing 28 when the electric lock 20 is detached from the door 81 or when the attachment of the electric lock to the door 81 is improper. The detection unit 29 outputs first information when the protrusion 24y protrudes.

[0139] Such an electric lock 20 can detect the removal of the electric lock 20 by using the retractable mechanism 24.

[0140] The electric lock 20a further includes a light-emitting element that emits infrared light toward the door 81 when the electric lock 20a is attached to the door 81, and a light-receiving element that receives the infrared light emitted by the light-emitting element and reflected by the door 81. The detection unit 29 outputs first information when the amount of infrared light received by the light-receiving element falls below a predetermined value.

[0141] Such an electric lock 20a can detect the removal of the electric lock 20a by using the reflection of infrared light.

[0142] The electric lock 20b further includes an acceleration sensor 24b that senses an external force acting on the electric lock 20b. The detection unit 29 outputs first information when an external force equal to or greater than a predetermined value is applied to the electric lock 20b. The acceleration sensor 24b is an example of a sensor that senses an external force.

[0143] Such an electric lock 20b can detect the removal of the electric lock 20b based on an external force applied to the electric lock 20b.

[0144] The electric lock 20c further includes a current sensor 24c that senses the drive current of the electric lock 20c. The detection unit 29 outputs first information when the drive current falls outside a predetermined range.

[0145] Such an electric lock 20c can detect the removal of the electric lock 20c based on the drive current of the electric lock 20c.

[0146] The electric lock 20d further includes a wire sensor 24d that senses when the wire 70 connecting the electric lock 20d and the door 81 has come off from the electric lock 20d. The detection unit 29 outputs first information when the wire 70 comes off from the electric lock 20d. The wire sensor 24d is an example of a sensor that senses when the wire 70 has come off from the electric lock 20d.

[0147] Such an electric lock 20d can detect the detachment of the electric lock 20d by utilizing the fact that the wire 70 has come off from the electric lock 20d.

[0148] The electric lock 20e also includes a first main body 20e1 and a second main body 20e2, each attached to the door 81. The door 81 is located between the first main body 20e1 and the second main body 20e2. The detection unit 29 outputs first information based on the state of wireless communication between the first wireless communication unit 24e1 housed in the first main body 20e1 and the second wireless communication unit 24e2 housed in the second main body 20e2.

[0149] Such an electric lock 20e can detect the removal of the electric lock 20e based on the state of wireless communication.

[0150] (Other embodiments) Although the embodiments have been described above, the present invention is not limited to the above-described embodiments.

[0151] For example, in the above embodiment, the notification system is realized by a plurality of devices. When the notification system is realized by a plurality of devices in this way, the components of the notification system may be distributed among the plurality of devices in any manner. The same applies to other systems such as a control system and a security system.

[0152] The notification system may also be implemented by a single device. For example, the notification system may be implemented as a single device corresponding to any one of the appliance controller, the appliance control server, and the security controller. The same applies to other systems such as the control system and the security system.

[0153] Furthermore, the communication method between the devices in the above-described embodiment is not particularly limited. Furthermore, a relay device (not shown) may be involved in the communication between the devices. Furthermore, the information transmission path described in the above-described embodiment is not limited to the transmission path shown in the sequence diagram.

[0154] In the above-described embodiment, the processing performed by a specific processing unit may be performed by another processing unit. The order of multiple processing operations may be changed, or multiple processing operations may be performed in parallel.

[0155] In the above-described embodiments, each component may be realized by executing a software program suitable for that component, or by a program execution unit such as a CPU or processor reading and executing a software program recorded on a recording medium such as a hard disk or semiconductor memory.

[0156] Furthermore, each component may be realized by hardware. For example, each component may be a circuit (or integrated circuit). These circuits may form a single circuit as a whole, or each may be a separate circuit. Furthermore, each of these circuits may be a general-purpose circuit or a dedicated circuit.

[0157] Furthermore, the general or specific aspects of the present invention may be realized as a system, an apparatus, a method, an integrated circuit, a computer program, or a computer-readable recording medium such as a CD-ROM, or as any combination of a system, an apparatus, a method, an integrated circuit, a computer program, and a recording medium.

[0158] For example, the present invention may be realized as a notification method executed by a computer such as a notification system, or as a program for causing a computer to execute such a notification method. The present invention may also be realized as a control method for an electric lock, or as a program for causing a computer to execute such a control method. The present invention may also be realized as an application program that facility users install on a mobile device to receive notifications. The present invention may also be realized as a computer-readable, non-transitory recording medium on which such a program is recorded.

[0159] In addition, the present invention also includes forms obtained by applying various modifications to each embodiment that a person skilled in the art would think of, or forms realized by arbitrarily combining the components and functions of each embodiment within the scope of the present invention. [Explanation of symbols]

[0160] 20, 20a, 20b, 20c, 20d, 20e Electric lock 20e1 First body part 20e2 Second body part 24b Acceleration sensor (sensor) 24c current sensor 24d Wire Sensor (Sensor) 24e1 First Radio Communication Department 24e2 Second Radio Communication Department 24y protrusion 70 wire 80 facilities 81 Door

Claims

1. An electric lock that is detachably attached to a door provided at the entrance of a facility and controls locking and unlocking of the door by electrifying an existing locking mechanism of the door, a detection unit that detects the electric lock being detached from the door or the electric lock being improperly attached to the door and outputs first information as a detection result; Electric lock.

2. Furthermore, the electric lock has a protrusion that is housed in a housing that the electric lock has when the electric lock is attached to the door, and that protrudes outward from the housing when the electric lock is detached from the door or when the attachment state of the electric lock to the door is improper, The detection unit outputs the first information when the protrusion protrudes. The electric lock according to claim 1.

3. Furthermore, the electric lock is provided with a light-emitting element that emits infrared light toward the door when the electric lock is attached to the door, and a light-receiving element that receives the infrared light emitted by the light-emitting element and reflected by the door, The detection unit outputs the first information when the amount of the infrared light received by the light receiving element falls below a predetermined value. The electric lock according to claim 1.

4. Further, a sensor for sensing an external force applied to the electric lock is provided, The detection unit outputs the first information when the external force of a predetermined value or more is applied to the electric lock. The electric lock according to claim 1.

5. Further, a current sensor is provided for sensing a drive current of the electric lock, The detection unit outputs the first information when the current value of the driving current falls outside a predetermined range. The electric lock according to claim 1.

6. Further, a sensor is provided for detecting when a wire connecting the electric lock and the door is disconnected from the electric lock, The detection unit outputs the first information when the wire is detached from the electric lock. The electric lock according to claim 1.

7. The electric lock includes a first body portion and a second body portion, each of which is attached to the door; the door is located between the first body portion and the second body portion; The detection unit outputs the first information based on a state of wireless communication between a first wireless communication unit housed in the first main body and a second wireless communication unit housed in the second main body. The electric lock according to claim 1.

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