JP2021156162A - Key system - Google Patents

Abstract

To provide a key management system that eliminates the need for physical keys.SOLUTION: A key system for use with a door for entering/exiting a predetermined space, includes: an external enclosure which is provided on an external surface of the door that does not face the predetermined space, and comprises an input section that accepts input of key information to perform a locking/unlocking operation of a key; and a key case which is connected to the external enclosure, is provided inside the door, and comprises a cam provided in the key case, a motor provided to the cam to rotate the cam, a control section provided in the key case to drive the motor, and a deadbolt protruding from the key case or stored in the key case according to the rotation of the cam.SELECTED DRAWING: Figure 1

Description

The present invention relates to an electric lock provided on a door, and more particularly to a key management technique for locking and unlocking the electric lock.

Conventionally, an electric lock is generally known as a mechanism for electrically unlocking a key provided on a door. As this electric lock, there is an electronic lock system that can be used in combination with a cylinder lock that is a physical key (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2011-43044

By the way, when such an electric lock is installed on a door, it is often a large scale by making a hole in the door. Such a large-scale construction is complicated for the user, and considering the time taken for such construction and the inconvenience to the neighborhood, there is a problem that it is difficult to replace it with an electric lock. there were.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a key system that does not require such a large-scale construction.

In order to solve the above problems, the key system according to one aspect of the present invention is a key system provided on a door for entering and exiting a predetermined space, and is provided on an outer surface of the door not facing the predetermined space. , An external housing provided with an input unit for receiving input of key information for executing key locking / unlocking, and a key case connected to the external housing and provided inside the door, which is provided inside the key case. A cam, a motor provided on the cam to rotate the cam, a control unit provided in the key case for driving the motor, and a protrusion from the key case or the inside of the key case according to the rotation of the cam. It is equipped with a dead bolt that is stored in the door.

The key system may further include a battery that faces a predetermined space and is provided on the inner surface of the door to provide power to drive the key system.

The key system further includes a server that manages key data for rotating a cam to execute locking / unlocking, and an external housing includes a communication unit that executes communication with an external device and a communication unit from the server. The input unit receives input of key information for executing locking / unlocking from the user, and the control unit determines whether or not the key information is a valid key. May be determined based on the key data, and the motor may be driven to execute locking / unlocking based on the determination.

In the above key system, the input unit may accept the input of the key information from the user's terminal by short-range wireless communication.

In the above key system, the input unit may include an input key that accepts input from the user.

In the above key system, the external housing further includes a connection terminal for connecting a charging battery, and the key system further includes a charging circuit for charging the battery when the charging battery is connected. May be.

In the above key system, the key case includes a latch bolt that protrudes from the inside of the key case or is housed in the key case in response to the rotation of the doorknob, and the key case includes a cam, a motor, a control unit, and a dead bolt. The key case has a variable structure in which the distance between the first housing and the second housing is variable, including a first housing for accommodating and a second housing for accommodating the latch bolt.

In the key system, the key case may realize the variable structure by providing a spacing housing between the first housing and the second housing.

The key case according to one aspect of the present invention is a key case provided inside a door, and is provided with a cam, a motor provided on the cam to rotate the cam, and a key provided in the key case and transmitted. It includes a control unit for driving a motor based on information, and a dead bolt that protrudes from the key case or is housed in the key case according to the rotation of the cam.

In the key system according to one aspect of the present invention, the electric lock system can be attached only by replacing the key case provided on the door and providing an external housing on the door.

It is a perspective view which shows the structure of a key system. It is a side view of the key case included in the key system. It is a figure which shows the state which the key system is installed in the door, and is the figure which is seen from the door end side of the door. It is a block diagram which shows the system configuration of a key management system. It is a data conceptual diagram which shows the data structure example of the key management table used in the key management system. It is a sequence diagram which shows the exchange between a user terminal, a key system, and a key management server in the preparation stage for a user to use a key in a key management system. It is a sequence diagram which shows the exchange between a user terminal, a key system, and a key management server when a user uses a room in a key management system. It is a flowchart which shows the operation of a key system. It is a flowchart which shows the operation of a key management server. It is a side view which shows the structural example of a key case. It is a side view which shows the example of the key case integrated with a dead bolt and a latch bolt. It is a block diagram which shows the system configuration of a key management system.

<Embodiment>
<Structure>
As shown in FIG. 1, the key system according to the present invention is a key system provided on a door for entering and exiting a predetermined space, and is at least an external housing 100 provided on the outer surface of the door and the inside of the door. Includes a key case 150 provided in. The predetermined space generally means a room or a building where a door can be installed. The outer surface of the door means the outside of the door provided in the room and the outside of the door provided in the building. Further, FIG. 2 is a side view of the key case 150, and FIG. 3 is a view seen from the door end side when the key system is attached to the door. Hereinafter, the key system will be described with reference to FIG. 1 and FIGS. 2 and 3 as appropriate.

The outer housing 100 includes an input unit 111 for receiving input of key information for executing key locking / unlocking. The outer housing 100 has a charging battery insertion portion 112. The charging battery insertion unit 112 has a terminal 301 as shown in FIG. 3, and when the charging battery is inserted, electric power is transmitted to the control circuit 130 through the wiring 131. Then, the control circuit 130 charges the operation battery 171 provided in the internal housing 170 installed on the inner side of the door as a charging circuit via the wiring 119. When the charging battery also serves as a charging circuit, it may be configured to be directly connected to the operating battery 171 without going through the control circuit 130. A lid 113 is attached to the charging battery insertion portion 112 in a normal state (when not charging). The lid portion 113 may be attached by any method, for example, by screwing or by fitting a claw provided on the lid portion 113 into a hole provided in the charging battery insertion portion 112. May be done.

The input unit 111 is provided on the outer surface of the door and is a device for inputting key information. The input of the key information may be realized in various modes. For example, the input unit 111 may be configured by a touch panel or a hardware key to directly input the key identification information (for example, a number). Alternatively, information corresponding to the key information may be input from another device by communication. The other device may be, for example, an IC card, a mobile terminal such as a mobile phone or a smartphone. Alternatively, the user's biological information (for example, fingerprint information or retina information) may be used as an alternative to other devices. That is, the key information may be in any form as long as it is information that can be uniquely specified for locking / unlocking the key provided on the door. As shown in FIG. 3, the input unit 111 is wiredly connected by wiring 131 through a window provided with a control unit 130 and a cam 118 provided in the key case 150, and the input to the input unit 111 is input to the control unit 130. Is transmitted to. In the present embodiment, the input unit 111 receives the key information from the terminal (for example, a mobile phone, a smartphone, etc.) held by the user and transmits the key information to the control unit 130.

The key case 150 is installed inside the door, and at least for the cam 118, the motor 120 for rotating the cam 118, the control unit 130 for driving the motor 120, and the rotation of the cam. A dead bolt 16a that protrudes from the key case 150 or is housed in the key case 150 is provided accordingly.

The motor 120 includes a rotation shaft 121a. The rotation shaft 121a rotates in the direction indicated by the arrow 114 in FIG. 1 according to the instruction from the control unit 130. The motor 120 is a small motor provided in the cam 118 portion provided in the key case 150, but a motor 120 that exerts a sufficient torque to rotate the cam 118 is used. The motor 120 is connected to a control unit 130 provided in the key case 150, and rotates according to an instruction from the control unit 130.

The rotation shaft 121a is inserted into the cam hole 118a of the cam 118. A wing 121b is attached to the rotation shaft 121a, and the cam 118 rotates when the wing 121b comes into contact with the convex portion 118b of the cam 118. As the cam 118 rotates, the dead bolt 16a protrudes from the key case 150 or is housed in the key case 150. As shown in FIG. 3, the rotation shaft 121a has a length up to the vicinity of the center of the cam 118 and does not reach the cam on the thumb turn side. On the other hand, the thumb turn 20 is provided with a convex shaft 117 having wings 117a, and the convex shaft 117 is inserted into the cam hole 118a of the cam 118 from the side opposite to the rotation shaft 121a. The convex shaft 117 is configured to rotate in accordance with the rotation of the thumb turn 20. When the convex shaft 117 rotates, the wings 117a come into contact with the convex portion 118b of the cam 118, and the cam 118 is rotated. The convex shaft 117 of the thumb turn 20 also has a length up to the vicinity of the center of the cam 118, and has a length that does not reach the cam on the key system side. Here, the shape of the cam 118 shown in FIG. 1 is not limited to the shape shown in the drawing, and may be another shape. As long as the cam 118 is configured to rotate in contact with the blades 121b of the rotating shaft 121a provided on the motor 120, the cam may have other shapes.

By the rotation of the rotation shaft 121a or the thumb turn 20, the mechanism provided inside the key case 150 operates, and the dead bolt 16a protrudes from the key case 150 or the protruding portion returns to the original position. As shown in FIG. 2, the cam 118 has a convex portion 118c, and the cam 118 rotates, and the convex portion 118c also rotates in the direction indicated by the arrow 202. The convex portion 118c is inserted into the concave portion provided in the dead bolt 16a. Then, as the convex portion 118c rotates, the dead bolt 16a moves in the direction indicated by the arrow 201. By this movement, the dead bolt 16a protrudes from the key case 150 or is housed in the key case 150. The dead bolt 16a protrudes from the key case 150 and is fitted to a receiving seat 16b provided on the wall where the door is installed to lock the dead bolt 16a. When the dead bolt 16a is housed in the key case 150, the lock is unlocked.

The door is provided with a handle 10a for the user to open and close the door on the outside as seen from the room. Further, corresponding to the handle 10a, a handle 10b for the user to open and close the door is also provided on the inside side of the room. The handle 10a includes a mounting pillar 11 and a square core 12, the square core 12 fits into the square core hole 14, the mounting pillar 11 fits into the mounting pillar hole 13, and the handle 10a is installed on the door. NS. When the user moves the handle 10a provided on the door up and down, the square core 12 rotates, and the latch bolt 17a protrudes from the key case 150 or is stored in accordance with the rotation. This allows the user to open and close the door. With the latch bolt 17a protruding, it can be fitted with the receiving seat 17b to keep the door closed.

Although not shown, the key system 1 is provided with a sensor for detecting the rotational state (rotation angle) of the motor 120 and a detection function for detecting the rotational state (rotation angle) of the thumb turn 20. Has been done. For example, the cam 118 is provided with a sensor for detecting the rotation angle of the motor 120, and is also provided with a sensor for detecting the rotation angle of the thumb turn 20. With the sensor, the key system 1 can detect whether the key is in the unlocked state or the locked state, and the information is used by the user who uses the place where the key system 1 is installed. It is possible to notify the terminal etc. of.

As an example, the sensing can be realized as follows. A photo sensor is provided on the cam 118 so as to face the motor 120, and the initial state detected by the photo sensor is stored in the storage unit 151. Then, the rotational state of the motor 120 is detected depending on whether or not a state similar to the above state is detected. Similarly, the motor 120 is also provided with a photo sensor on the surface facing the cam 118, and detects the rotational state of the thumb turn 20 depending on whether or not the photo sensor detects the convex portion 118b of the cam 118. do. Then, from the rotating state of the motor 120 and the rotating state of the thumb turn 20, and the state of the key (locked state or unlocked state) in each initial state, the key is currently in the unlocked state or in the locked state. It is possible to identify whether it is in. The sensing method described here is an example, and as another method, for example, a small camera is provided in the key system 1 and the captured image is analyzed to detect the unlocked state and the locked state of the key. Or, a contact sensor or a distance sensor is provided on either the dead bolt 16a and the seat 16b, and the dead bolt 16a and the seat 16b are locked depending on whether they are in close contact with each other or in close proximity to each other. It may be detected whether the lock is in the unlocked state.

The key system 1 in the present embodiment is equipped with a mechanism in which a motor 120 is provided at a position where a cylinder lock is conventionally provided and a key is locked and unlocked in the key case 150. The external housing 100 provided outside the door is provided with an input unit 111 for receiving a key lock. Since the external housing 100 is provided with only the terminal 301 for the rechargeable battery and the input unit 111, the housing can be made relatively thin, so that the external housing 100 having a smarter shape can be provided. Can be done.

Further, the key case 150 is generally easier to remove and attach than the case of attaching a generally known electric lock. The key system 1 according to the present embodiment only needs to replace the key case, attach the outer housing 100 to the outer side of the door, and attach the inner housing 170 including the operating battery 171 to the inner side. , A mechanism as an electric lock can be attached.

A system configuration of a key management system using such a key system 1 will be described with reference to FIG.

FIG. 4 is a system diagram showing a system configuration of a key management system, which includes a key management server 200 and a plurality of key systems 1a to 1e provided on the doors of each room of an apartment house or the like. Here, for the sake of simplicity, an example in which there is one key management server and five key systems is shown, but the number of key management servers 200 and key systems is not limited to this. It goes without saying that there is no such thing. A plurality of key management servers 200 may exist on the key management system, and the key system is also installed in each room. The key management system may be configured as a client-server type in which the key management server 200 collectively manages each key system 1 (1a to 1e), or P2P in which a plurality of key management servers 200 and the key system 1 communicate equally. It may be composed of a mold.

The key management server 200 includes a communication unit 210, a control unit 220, and a storage unit 230. The key management server 200 is realized by a computer having a so-called server function, and includes a memory (RAM, ROM).

The communication unit 210 is connected to the network 250 and has a function of executing communication with each key system. The communication unit 210 may execute communication according to any communication standard as long as it can communicate with each key system via the network 250, regardless of whether it is wired or wireless.

The control unit 220 has a function of controlling each unit of the key management server 200. The control unit 220 realizes various functions by executing an operation program stored in the storage unit 230. When the control unit 220 receives the key request from the user terminal from the communication unit 210, the control unit 220 identifies the location based on the information for identifying the location where the key system included in the key request is installed. Then, the key information of the corresponding key system is set in the key management table 500 and registered in the key management table 500. Then, the control unit 220 transmits the set key information to the user terminal that made the key request via the communication unit 210. If the registered device is already registered in the corresponding location, and if the registered device matches the ID of the user terminal that requested the key, the corresponding key information is sent to the user terminal. If the registered device does not match the ID of the user terminal that made the key request, the user terminal that made the key request is notified that the corresponding location cannot be used. Further, the control unit 220 in which the key information is set transmits the key information set in the corresponding key system via the communication unit 210. When the user directly inputs a number or the like as key information to the input unit 111, the control unit 220 transmits text data of data to be input as key information to the user terminal, and the user uses the text data. You can recognize the key to be entered by looking at the text data.

When the control unit 220 receives the authentication information from the communication unit 210, the control unit 220 registers the authentication date / time information and the authentication success / failure information corresponding to the key system to which the authentication information is transmitted in the key management table 500, and stores the authentication information in the storage unit 230. Update the existing key management table 500.

Further, the control unit 220 has a function of generating a key information deletion instruction and transmitting the key information to the key system, if necessary, so that the existing key cannot be used.

The storage unit 230 has a function of storing programs and various data required for operating the key management server, and is realized by a RAM, a ROM, or the like. The storage unit 230 stores a key management table 500 for managing each key system and an operation program for managing key information.

Although not shown, the key management server 200 operates by receiving power supplied from an AC power source.

As shown in FIG. 4, the key system 1a, which is one of the key systems, has an external housing 100 provided on the outside side of the door, a key case 150 provided inside the door, and an inside provided on the inside side of the door. Includes housing 170. The external housing 100 includes an input unit 111, and the key case 150 includes a control unit 130, a storage unit 151, and a motor 120. Further, the internal housing 170 includes an operating battery 171. In FIG. 4, in order to distinguish each key system, the key systems are designated by reference numerals 1a to 1e. However, when it is not necessary to distinguish the key systems, in the following, the "key system 1" is used. ". This is because each key system has a similar configuration.

The operating battery 171 is a battery having a function of supplying electric power to each part of the key system 1. The battery is realized by, for example, a lithium ion battery. The operating battery 171 may be configured to be removable and may be configured to be replaceable when the power supplied is low.

The input unit 111 also has a function of executing communication with the key management server 200 via the network 250. The input unit 111 may execute communication according to any communication standard as long as it can communicate with the key management server 200 via the network 250, regardless of whether it is wired or wireless. The input unit 111 also has a function of executing communication with the user terminal by short-range wireless communication. For the short-range wireless communication, for example, the Bluetooth (registered trademark) standard or the Bluetooth low energy standard having a low power consumption may be used. The input unit 111 transmits the key information received from the key management server 200 to the control unit 130. Further, the input unit 111 transmits the key information received from the user terminal to the control unit 130. Further, the input unit 111 transmits the authentication information transmitted from the control unit 130 to the key management server 200 via the network 250. Other communication standards that can be used by the input unit 111 include, for example, the Wi-Fi standard and communication using a SIM card. When a SIM card is used, for example, there is an advantage that communication can be executed without laying an Internet line in a key management system. Further, when a SIM card is used, since the 2.4 GHz band used in various standards such as the Bluetooth standard is not used, there is an advantage that communication crosstalk and the like are less likely to occur.

The motor 120 has a function of rotating according to an instruction from the control unit 130. The key provided on the door is locked and unlocked according to the rotation direction of the motor 120.

The control unit 130 has a function of controlling each unit of the key system 1. The control unit 130 is a processor (microcomputer) that operates according to an operation program stored in the storage unit 151. When the control unit 130 receives the key information transmitted from the key management server 200 from the input unit 111, the control unit 130 stores the key information in the storage unit 151. When the control unit 130 receives the key information from the user terminal from the input unit 111, the control unit 130 reads the stored key information from the storage unit 151 and executes the authentication. When the stored key information matches the key information from the user terminal, the control unit 130 rotates the motor 120 to lock / unlock the key. That is, when the key is closed (when the dead bolt 16a is protruding), the key is unlocked, and when the key is vacant (when the dead bolt 16a is stored in the key case 150), the key is locked. do. When the stored key information matches the key information from the user terminal, the control unit 130 transmits information indicating an authentication failure to the user terminal. Then, the control unit 130 generates authentication information including a key system ID of the own device, a device ID of the user terminal that has performed the authentication, information indicating the date and time of the authentication, and information indicating the success or failure of the authentication. , The input unit 111 is made to transmit to the key management server 200. Further, when the control unit 130 receives the key information deletion instruction from the key management server 200, the control unit 130 erases the key information stored in the storage unit 151.

The storage unit 151 has a function of storing programs and various data required for the operation of the key system 1, and is realized by a RAM, a ROM, or the like. The storage unit 151 stores key information used for locking / unlocking authentication. The key information can be appropriately rewritten by the key management server 200.

Although not shown in FIG. 4, the user terminal is realized by a mobile communication terminal such as a mobile phone or a smartphone held by a user having a communication function. The user terminal accesses, for example, a site related to room rent, and sends a key request to the key management server 200 when viewing a room to be rented according to user input. The key request includes a device ID which is identification information that can uniquely identify a user terminal, and information that can identify a place to be rented (for example, an address or a name of a place to rent). Then, when the key information is received from the key management server 200 in response to the key request, it is stored. Then, when the user terminal enters the short-range wireless communication of the key system installed at the place to be rented, the user terminal transmits the stored key information. As a result, if the key information is correct, the lock is locked and unlocked.

The above is the function of each device related to the key management system.

<Data>
Here, the details of the key management table 500 held by each key management server 200 will be described. FIG. 5 is a data conceptual diagram showing a data configuration example of the key management table 500.

As shown in FIG. 5, the key management table 500 is information in which the key system ID 501, the key information 502, the registered device ID 503, the authentication date and time 504, the authentication success / failure 505, and the installation location 506 are associated with each other.

The key system ID 501 is identification information set to distinguish each key system provided in each room on the system.

The key information 502 is the key information set by the control unit 220 for the key system, and is the information stored in the user terminal and the key system. The key information is used for authentication in the key system.

The registered device ID 503 is device identification information that can uniquely identify the user terminal of the user who uses the room in which the key system is attached.

The authentication date and time 504 is information indicating the date and time when the authentication was executed in the key system.

The authentication success / failure 505 is information indicating the success / failure of the authentication executed at the corresponding date and time in the key system.

The installation location 506 is information indicating the location where the key system is installed, and indicates an address.

According to FIG. 5, for example, a key system having a key system ID 501 of "100b" is associated with "Kl38s * w" as key information, and a user terminal of a user who uses a room in which this key system is attached. The device ID of the device is "FX23-R2900". The authentication in the key system "100b" is performed at "13:41 on January 23, 2016", and it can be seen that the authentication is "successful". And this key system "100b" is installed in "A prefecture B city C town 1-chome ○ × heights 201".

Since the key management server 200 holds such a key management table 500, each key system can execute authentication, and can easily perform authentication performed in the past and search for who used where. be able to.

<Operation>
From here, the operation of the key management system according to the present embodiment will be described. FIG. 6 is a sequence diagram showing processing in the preparation stage for the user to use the room in the key management system, and exchanges between the user terminal, the key management server 200, and the key system 1. It is a closed sequence diagram.

The user terminal transmits a key request requesting the use of the room to the key management server 200 (step S601).

When the key management server 200 receives the key request, it identifies the key system to be used and sets the key information in the specified key system (step S602).

Further, the key management server 200 stores the device ID of the user terminal included in the key request in the key management table 500 in association with the key system ID (step S603).

The key management server 200 transmits the set and stored key information to the user terminal that made the key request (step S604).

The user terminal stores the key information received from the key management server 200 (step S605).

Similarly, the key management server 200 transmits the set key information to the specified key system (step S606).

When the key system 1 receives the key information, it stores it in the storage unit (step S607). As a result, the user terminal is ready to use the room in which the key system 1 is installed.

Next, the operation of the key management system when the user holding the user terminal uses the room will be described.

When the user terminal arrives near the room, that is, when it enters the short-range wireless communication range of the key system 1, the user terminal transmits the key information to the key system 1 (step S701). The key system 1 transmits a request signal requesting key information, and the user terminal transmits key information as a response signal in response to the request signal. This may be a configuration in which the user himself / herself uses the user terminal to transmit the key information.

When the key system 1 receives the key information, it collates with the stored key information and authenticates (step S702).

The key system 1 locks and unlocks the door key according to the authentication result (step S703).

When the key system 1 executes the authentication, the key system 1 generates authentication information including the date and time information of the authentication and the information regarding the success or failure of the authentication (step S704). Then, the key system 1 transmits the generated authentication information to the key management server 200 (step S705).

When the key management server 200 receives the authentication information, the key management server 200 updates the stored key management table 500.

By executing the process shown in FIG. 7, the key management system can lock / unlock the key and accumulate the authenticated information.

FIG. 8 is a flowchart showing the operation of the key system 1. Each of the key systems 1a to 1e shown in FIG. 4 operates according to the process shown in FIG.

The input unit 111 of the key system 1 receives the information. When the information is the key information from the key management server 200 (YES in step S801), the input unit 111 transmits the key information from the key management server 200 to the control unit 130.

When the control unit 130 receives the key information from the key management server 200 via the input unit 111, the control unit 130 stores the received key information in the storage unit 151 (step S802), and ends the process.

When the received information is not the key information from the key management server 200 (NO in step S801) but the key information from the user terminal (YES in step S803), the input unit 111 is from the received user terminal. The key information is transmitted to the control unit 130.

Then, the control unit 130 reads out the key information stored in the storage unit 151 (step S804). Then, the control unit 130 determines whether or not the transmitted key information from the user terminal and the key information read from the storage unit 151 match (step S805).

When the key information from the user terminal and the key information read from the storage unit 151 match (YES in step S805), the control unit 130 rotates the motor 120 to lock / unlock the door key. (Step S806). That is, the control unit 130 opens the key when the key is closed, and closes the key when the key is open.

On the other hand, when the key information from the user terminal and the key information read from the storage unit 151 do not match (NO in step S805), the key system 1 provides information indicating that the key is incorrect to the user terminal. Notify by transmitting to (step S807).

After that, the control unit 130 generates authentication information including the key system ID of the own device, the date and time information of the authentication, the information indicating the success or failure of the authentication, and the device ID of the user terminal that has performed the authentication. Then, the control unit 130 transmits to the key management server 200 via the input unit 111 (step S808), and ends the process.

When the received information is not the key information from the user terminal (NO in step S803) and the key information deletion instruction is received (step S809), the input unit 111 transmits the deletion instruction to the control unit 130. When the control unit 130 receives the deletion instruction, the control unit 130 deletes the key information stored in the storage unit 151, controls the motor 120 to lock the door key (step S810), and ends the process.
The above is the operation of the key system 1.

Next, the operation of the key management server 200 will be described. FIG. 9 is a flowchart showing the operation of the key management server 200.

The communication unit 210 of the key management server 200 receives the information. When the information is a key request from the user terminal (YES in step S901), the communication unit 210 transmits the key request to the control unit 220. The key request includes information about a place to be used from the user terminal. The control unit 220 identifies the location information included in the transmitted key request, and uses the identified location information to refer to the installation location 506 of the key management table 500 to identify the corresponding key system (step S902). ).

The control unit 220 refers to the registered device ID 502 in the key management table 500 for the specified key system, and refers to whether or not there is a device using the requested location (step S903). When there is a registered device (YES in step S903), that is, when data is registered in the corresponding registered device ID column in the key management table 500 (YES in step S903), the control unit 220 makes a key request. The user terminal is notified that the requested location cannot be used (step S904), and the process ends.

When there is no registered device (NO in step S904), that is, when data is not registered in the corresponding registered device ID column in the key management table 500, the control unit 220 uses the key information used in the key system. Is set and registered in the key management table 500 (step S905).

The control unit 220 transmits the set key information to the user terminal that made the key request and the key system corresponding to the key request via the communication unit 210 (step S906), and ends the process.

When the authentication information is received from the key system (YES in step S907) instead of the key request from the user terminal (NO in step S901), the communication unit 210 transmits the authentication information to the control unit 220. As described above, the authentication information includes the key system ID that has been authenticated, the date and time information that has been authenticated, the success / failure information of the authentication, and the device ID of the user terminal that has been authenticated. The control unit 220 extracts each information from the transmitted authentication information and newly additionally registers it in the target location of the key management table 500 (step S908). That is, from the key system ID included in the authentication information, the corresponding part of the key management table 500 is specified with reference to the key system ID 501. Then, the date and time information included in the authentication information is registered in the corresponding authentication date and time 504, and the success / failure information included in the authentication information is registered in the authentication success / failure 505, and the process ends. At this time, when the registered device ID 503 and the device ID of the user terminal included in the authentication information do not match, the control unit 220 notifies the operator's terminal to that effect.

On the other hand, the information received by the communication unit 210 is neither a key request from the user terminal (NO in step S901) nor authentication information from the key system (step S907), and the key information including the key system ID from the operator. (Step S909), the control unit 220 generates a key information deletion instruction for the corresponding key system. Then, the control unit 220 transmits a deletion instruction of the generated key information to the corresponding key system via the communication unit 210 (step S910), and ends the process.

The above is the operation of the key management server 200.

<About the security of key information>
Although not shown in FIG. 4, a plurality of key management servers 200 are installed in the key management system.

Each key management server 200 has the above-mentioned functions, and the key management table 500 is shared among the key management servers 200. Then, when the information of one of the key management servers 200 is tampered with and a malicious third party locks and unlocks the key of the door of a specific room with the tampered key, the other key management server 200 holds the key. The tampering can be detected when the authentication information for locking / unlocking with a key different from the key registered in the key management table 500 is registered.

<Summary>
As shown in the above embodiment, the key management system transmits the electronic data of the key to the user terminal, and the user terminal communicates with the key system using the electronic data of the received key. , Lock and unlock the door key. Therefore, the key management system does not need to prepare a physical key, and the operating cost can be reduced. In addition, when renting a room, it was necessary for the lender or real estate company to be present to unlock the room when performing a preview, etc. However, if the key management system according to the above embodiment is used, communication can be performed. Since the key can be prepared just by doing so, the convenience of both the lender and the borrower in the preview can be significantly improved.

Further, according to the key system according to the present embodiment, in the position where the cylinder lock is conventionally provided, a motor is provided in the cam portion of the key case to lock and unlock the key while interlocking with the thumb turn. There is a mechanism that can be done. Therefore, when installing the key system, it is only necessary to remove the conventional cylinder lock, replace the key case, and install the outer housing and the inner housing, and a new door is installed to install the key system 1. Since it is not necessary to provide a through hole or the like, installation becomes easy.

<Supplement>
It goes without saying that the line-of-sight detection system according to the present invention is not limited to the above-described embodiment, and may be realized by another method for realizing the idea of the present invention. Various reference examples will be described below.

(1) In the above embodiment, the key information is associated with the key system provided in one door. However, the key information may be used as a key for unlocking a key provided on a plurality of doors.

Specifically, for example, some apartments have a locked door at the entrance to the building itself, and some rooms are also locked. In such an apartment house, while the key shown in the above embodiment may be used as a room key, it may also be used as an entrance key for entering the building of the apartment house. That is, a communication unit that executes communication with the user terminal, an authentication unit that performs authentication, and a control unit that unlocks the key are provided at the entrance of the building, and the communication unit receives key information from the user terminal and the authentication unit. The key information received by the user may be authenticated, and the door key may be unlocked depending on the success or failure of the authentication. At this time, the authentication unit provided at the entrance holds the key information of all the key systems installed in the building, and is set so that any of the key information set as the key system in the building can be unlocked. NS. The administrator may directly set the setting to the authentication unit (authentication device) provided at the entrance by using a hardware key or the like, or from the key management server 200 via the communication unit. It may be set.

According to the key management system with such a configuration, two keys are required at the entrance of the building and the room, but it is not necessary to prepare two physical keys, and it is necessary to manage multiple keys. Will disappear. In particular, since it is not necessary to prepare a plurality of physical keys when viewing a rental property, the convenience of the user is significantly improved.

In the above embodiment, the key system 1 is provided on the door of the room of the building, but this is not limited to the door of the room. The key system 1 according to the present invention can be used for various purposes in situations where keys are used, such as a rental warehouse key, a trunk room key, and an automobile key.

(2) In the above embodiment, the key system 1 is supposed to authenticate the key information held by the user terminal, but this is not the case. The key information authentication may be executed by the key management server 200. That is, when the key system 1 receives the key information from the user terminal, it transmits the device ID of the user terminal and the received key information to the key management server 200. The key management server 200 receives the key information by referring to the key management table 500 held based on the received key information, the device ID of the user terminal, and the key system ID of the key system that has transmitted the key information. Authenticate whether the key information provided is a valid key. Then, the key management server 200 transmits the authentication result information indicating the authentication result to the key system that has transmitted the key information, and the key system executes locking / unlocking of the electric lock provided on the door according to the received authentication result information. do. With such a configuration, it is possible to provide a key management system having the same effect as that of the above embodiment.

(3) Although not shown in the key management table 500 of the above embodiment, the key management table 500 also includes user information about the user who uses the key and information on the date and time when the contract for using the key is made. Etc. may also be associated.

(4) In the above embodiment, the key system 1 includes an operating battery 171 and is used as a power source for operating each functional unit constituting the key system. However, the key system 1 is an AC inside the room. It may be configured to operate by receiving power supply from a power source.

(5) In the above embodiment, if the user terminal receives the key from the key management server 200, the door key can be unlocked, but a time limit may be further provided. That is, when the key management server 200 transmits the key information to the key system, the key management server 200 may include information on the date and time zone in which the key information can be used. Then, the key system may be configured to perform authentication only on the date and time indicated by the received date and time zone information.

(6) In the above embodiment, the key system 1 does not require a physical key, but a physical key may be further introduced here to further enhance security.

(7) In the above embodiment, the key system authenticates the key information received from the user terminal, but this is not the case. The key management server 200 may execute it. That is, when the key system receives the key information from the user terminal, it transmits the key system ID of its own device and the key information received from the user terminal to the key management server 200. The key management server 200 verifies whether or not the combination of the received key system ID and the key information is registered in the key management table 500. Then, if it is registered, the authentication success is transmitted to the key system, and if it is not registered, the authentication failure is transmitted to the key system. Then, the key system executes locking / unlocking according to the content of the authentication information received from the key management server 200, that is, when the authentication success is received, and does not execute the locking / unlocking when the authentication failure is received. ..

(8) Although not particularly described in the above embodiment, the key system 1 may include a configuration including an input key that can be input by a user. Then, the key management server 200 transmits the key information to be input to the user terminal. Then, the user sees the key information received by the user terminal and inputs the key information to the input key provided in the key system 1, and the short-range wireless communication shown in the above embodiment is configured. It may be replaced with the exchange of key information by.

(9) In the above embodiment, although not particularly described, the key management server 200 may periodically change the key information of the key system. Then, after the change, it may be transmitted to a user terminal having the corresponding registered device ID to execute opening / closing using the updated key information. As a result, the security of the room can be improved.

(10) In the above embodiment, although not particularly described, each key system 1 may be provided with a human body detection sensor that detects whether or not a human body exists near the key system 1. Then, in normal times, the operation battery 171 supplies electric power only to the human body detection sensor, and when the human body detection sensor detects a human body, the operation battery 171 supplies electric power to each part of the key system 1. May be good. As a result, it is possible to save power of the input unit 111, which consumes the largest amount of power in the key system 1.

(11) Although not particularly described in the above embodiment, the key system 1 may include a display device (so-called monitor) and a voice output device (so-called speaker), and is used for transmitting information to the user. May be done. For example, in the above embodiment, the notification of the success or failure of the authentication may be executed by using the display device or the voice output device.

(12) The key case 150 shown in the above embodiment may have the following structure in order to further improve its convenience.

That is, depending on the door, the distance between the seat 16b and the seat 17b may be different. Therefore, the key case 150 may be modularized with three housings inside the key case 150 so that it can easily accommodate seats at various intervals. That is, as shown in FIG. 10, a first housing 150a including a cam 118, a motor 120, a control circuit 130, and a dead bolt 16a, a second housing 150c including a latch bolt 17a, and a first housing. A spacing housing 150b that fills the gap between the 150a and the second housing 150c may be provided, and they may be housed in the key case 150, as shown in FIG. By preparing the spacing housings 150b having various widths, it is possible to provide the key case 150 capable of supporting seats at various intervals.

Here, the first housing 150a, the spacing housing 150b, and the second housing 150c are stored in the key case 150, but these are stored in the key case 150. Instead, they may be directly joined to form the key case 150.

Further, the distance between the first housing 150a and the second housing 150c may be made variable by a method other than the spacing housing 150b. For example, instead of the spacing housing 150b, a spring member may be inserted, or it may be realized by another holding member that can maintain a distance between the first housing 150a and the second housing 150c. good.

(13) In the above embodiment, the external housing 100 charges the operating battery 171 by wire by inserting the charging battery into the charging battery insertion portion 112. Not as long. The external housing 100 may receive electric power wirelessly from the charging battery. That is, the external housing 100 includes a power receiving antenna instead of the charging battery insertion portion 112 and the terminal 301, the charging battery includes a power transmission antenna, and power is transferred and received by non-contact power transmission between the two antennas. It may be that. The non-contact power transmission includes methods such as an electromagnetic induction method, an electromagnetic field resonance method, and a radio wave method, and any of these methods may be used. The power receiving antenna is connected to the operating battery 171 via the control circuit 130 or directly, and the operating battery 171 is charged.

Further, in such a case, the power receiving antenna of the outer housing 100 may be disguised in appearance so as not to know where the power receiving antenna is installed in the door. For example, it may be colored in the same color as the door, or it may be embedded inside the door. As a result, it is possible to suppress an abnormal operation on the power receiving antenna by a third party.

(14) In the above embodiment, the external housing 100 is provided with a function of receiving input from a user and a function of attaching a charging battery to receive electric power. May be realized by separate devices, or both devices may be arranged at different positions on the front side of the door. For example, a device including an input unit may be arranged on the front side of the door at a position close to the user's line of sight, and a device having a charging function may be provided under the knob. Usability can be expected to be improved by arranging the input unit at a position closer to the user's line of sight.

(15) In the above embodiment, the outer housing 100 is provided in the vicinity of the doorknob, but this is not the case. The outer housing 100 may be provided anywhere as long as it is on the front side of the door. At this time, by arranging the outer housing 100 at a position close to the user's line of sight, the usability of the outer housing 100 can be made easier for the user when the input portion of the outer housing 100 is formed by a touch panel or the like. Can be improved. As a result, since the external housing 100 is arranged away from the key case 150, it may be difficult to connect by wire due to problems such as wiring work. In such a case, the control circuit 130 and the external housing 100 are not connected by wire, and both the control circuit 130 and the input unit 111 of the external device 100 are provided with a wireless communication function to provide wireless information. It may be configured to perform transmission.

(16) In the above embodiment, an example is shown in which the key case 150 in which the dead bolt 16a and the latch bolt 17a are separately configured is used, but this is an example in which the dead bolt and the latch bolt are integrated. It may be a key case. An example thereof is shown in FIG. FIG. 11 is a diagram showing a structure of a key case in which a dead bolt and a latch bolt are integrated. In the case of the key case 150 shown in FIG. 11, only the bolt 1100 protrudes and is stored from the key case 150. Inside the bolt 1100, a dead bolt member 1106 that functions as a dead bolt and a latch bolt member 1107 that functions as a latch bolt are included, and operate in the directions indicated by arrows 201 and 1104, respectively.

Although not shown in FIG. 11, the housing of the bolt 1100 has an opening for inserting the convex portion 118c and a convex portion 1108 that rotates in the direction indicated by the arrow 1102 as the square core 12 of the knob rotates. It has an opening for inserting and an opening for inserting the elastic member 1103. The dead bolt member 1106 slides by driving the motor 120 in the same manner as shown in the above embodiment. FIG. 11 shows a state in which the dead bolt member 1106 is projected and locked.

On the other hand, the latch bolt member 1107 is always in a state of being projected from the key case 150 by the elastic member 1103. Along with this, the bolt 1100 that covers the latch bolt member 1107 also becomes in a protruding state. The elastic member 1103 is a so-called spring. When the user turns the knob of the latch bolt member 1107, the square core 12 rotates, and the convex portion 1108 rotates clockwise in FIG. 11. As a result, the convex portion 1108 comes into contact with the end portion of the latch bolt member 1107, and the entire latch bolt member 1107 is moved toward the right side of the drawing. The right end of the latch bolt member 1107 comes into contact with the right end of the bolt 1100 and moves toward the right. As a result, when the dead bolt member 1106 is in the unlocked state (when it is stored in the key case 150), the bolt 1100 is stored inside the key case 150 and the door can be opened. The structural example shown in FIG. 11 is an example, and a similar configuration may be realized by other structures. Even in such a key case in which a latch bolt and a dead bolt are integrally formed, it is possible to provide a key case and a key system that have the same effects as those shown in the above embodiment.

(17) In the above embodiment, as a method of operating the key management system, the processor of the key management server 200 and the processor of the key system execute an authentication program or the like to authenticate the key. This may be realized by a logic circuit (hardware) or a dedicated circuit formed in an integrated circuit (IC (Integrated Authentication) chip, LSI (Large Scale Integration)) or the like in the key management server 200 or the key system 1. Further, these circuits may be realized by one or a plurality of integrated circuits, and the functions of the plurality of functional units shown in the above-described embodiment may be realized by one integrated circuit. LSIs are sometimes called VLSIs, super LSIs, ultra LSIs, etc., depending on the degree of integration. That is, as shown in FIG. 12, the key management server 200 may be composed of a communication circuit 210, a control unit 220, and a storage circuit 230, and each function has the same name as shown in the above embodiment. It is the same as each functional part having. Further, as shown in the figure, the key system 1 (1a, 1b, 1c, 1d, 1e) is composed of an input circuit 111, a control circuit 130, a motor 120, a storage circuit 151, and an operating battery 171. It may be configured, and each function is the same as each functional unit having the same name shown in the above embodiment.

Further, the authentication program may be recorded on a recording medium that can be read by a processor, and the recording medium may be a "non-temporary tangible medium" such as a tape, a disk, a card, a semiconductor memory, or a programmable logic circuit. Etc. can be used. Further, the authentication program may be supplied to the processor via an arbitrary transmission medium (communication network, broadcast wave, etc.) capable of transmitting the authentication program. The present invention can also be realized in the form of a data signal embedded in a carrier wave, in which the authentication program is embodied by electronic transmission.

The authentication program can be implemented using, for example, a script language such as ActionScript or JavaScript (registered trademark), an object-oriented programming language such as Objective-C or Java (registered trademark), or a markup language such as HTML5.

(18) The configurations shown in the above-described embodiment and the configurations shown in the supplement may be appropriately combined.

The key management system according to the present invention can be applied to, for example, a lease business of a real estate property in which a key that does not use a physical key can be operated.

10a, 10b Handle 11 Mounting pillar 12 Square core 13 Mounting pillar hole 13
14 Square core hole 16a Dead bolt 16b Receiving seat 17a Latch bolt 17b Receiving seat 20 Thumb turn 1, 1a, 1b, 1c, 1d, 1e Key system 100 External housing 111 Input part 112 Charging battery insertion part 116 Gear 116a Hole 116b, 116c Convex shaft 117 Convex shaft 117a Feather 118 Cam 118a Cam hole 118b Protrusion 120 Motor 121a Rotating shaft 121b Feather 130 Control circuit 150 Key case 151 Storage unit 170 Internal housing 171 Operation battery 200 Key management server 210 Communication unit 220 Control Unit 230 Storage unit 301 terminal

Claims (9)

A key system installed on the door to enter and exit a predetermined space.
An external housing provided on the outer surface of the door that does not face the predetermined space and provided with an input unit that receives input of key information for executing key locking / unlocking.
A key case that is connected to the external housing and is provided inside the door.
With the cam provided in the key case,
A motor provided on the cam to rotate the cam,
A control unit provided in the key case for driving the motor,
A key system including a key case including a dead bolt protruding from the key case or housed in the key case in response to rotation of the cam. The key system further
The key system according to claim 1, further comprising an internal housing provided on the inner surface of the door facing the predetermined space and provided with a battery that provides power to drive the key system. The key system further includes a server that manages key data for rotating the cam to perform locking and unlocking.
The external housing includes a communication unit that executes communication with an external device, and
It is provided with a memory for storing key data received from the server via the communication unit.
The input unit receives input of key information for executing the lock / unlock from the user, and receives the input.
The control unit determines whether or not the key information is a valid key based on the key data, and drives the motor to execute the locking / unlocking based on the determination. The key system according to claim 1 or 2. The key system according to any one of claims 1 to 3, wherein the input unit receives input of the key information from the user's terminal by short-range wireless communication. The key system according to any one of claims 1 to 3, wherein the input unit includes an input key that receives input from the user. The external housing further includes a connection terminal for connecting a charging battery.
The key system according to claim 1 or 2, further comprising a charging circuit for charging the battery when the charging battery is connected. The key case includes a latch bolt that protrudes from the inside of the key case or is housed in the key case in response to rotation of the doorknob.
The key case includes a first housing that houses the cam, the motor, the control unit, and the dead bolt.
Including a second housing for accommodating the latch bolt
The key system according to any one of claims 1 to 6, wherein the key case has a variable structure in which the distance between the first housing and the second housing is variable. The key system according to claim 7, wherein the key case realizes the variable structure by providing a spacing housing between the first housing and the second housing. A key case provided inside the door
With the cam
A motor provided on the cam to rotate the cam,
A control unit provided in the key case for driving the motor based on the transmitted key information.
A key case including a dead bolt that protrudes from the key case or is housed in the key case in response to rotation of the cam.

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