JP2016020606A - Electric lock system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce risk of unlocking an electric lock by a third person.SOLUTION: A controller 12 transmits a starting signal of putting an electronic key 40 in an ON state. The electronic key 40 which has become the ON state transmits ID information. The controller 12 authenticates the ID information received by an antenna 16, and unlocks locked main lock 14A and auxiliary lock 14B when authentication is possible, and prohibits unlocking of the main lock 14A and the auxiliary lock 14B by an electronic key including the electronic key 40 on the possibility of authentication when sensors 42A and 42B detect locking of the main lock 14A and the auxiliary lock 14B after unlocking the main lock 14A and the auxiliary lock 14B.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an electric lock system for locking and unlocking a door of a building.

  An electric lock that can lock and unlock a door of a building by remote control from the electronic key transmits an activation signal to the electronic key, and the electronic key that has received the activation signal is turned on. The range that the activation signal reaches is, for example, about 1 to several meters from the electric lock. Since the electronic key that is further away from the electric lock than the range where the activation signal reaches is not turned on, the electronic key is turned on except when the electronic key is moved near the electric lock for locking or unlocking. This prevents the battery that is the power source of the electronic key from being consumed unnecessarily.

  However, after unlocking the front door, etc., if the electronic key used for unlocking is left in the reach of the activation signal from the electric lock on the entrance shoe box, etc., the electronic key It will continue to receive, and the built-in battery will be exhausted. In addition, since the authentication information (ID information) for unlocking the electric lock is continuously transmitted from the electronic key that is turned on, a third party who does not have the electronic key presses the trigger switch on the front door As a result, there is a problem that the electric lock is unlocked.

  In Patent Document 1, when the response signal from the electronic key continues for a predetermined time, the transmission of the calling signal to the electronic key is stopped to prevent the battery of the electronic key from being consumed, and a third party can A building door locking and unlocking system that prevents unlocking an electric lock is disclosed.

JP 2004-3147 A

  However, the door locking / unlocking system described in Patent Document 1 has a problem that the electric lock is unlocked when a third party operates the trigger switch within a predetermined time.

  The present invention has been made in view of the above-described facts, and an object thereof is to provide an electric lock system that reduces the risk of the electric lock being unlocked by a third party.

  The invention of claim 1 for solving the above-mentioned problem is to lock or unlock the door of the building by the power of the actuator or the manual operation of the locking / unlocking means provided on the indoor side, and detect the locking or unlocking state. A lock that includes a sensor to be transmitted, an electronic key that can transmit authentication information in an on state, a receiving unit that receives the authentication information, and an activation signal that turns on the electronic key, and the receiving unit receives The authentication information is authenticated, and if the authentication is possible, the actuator is operated to unlock the locked lock, and after unlocking the lock, the sensor detects the locked lock, Control means for prohibiting the unlocking of the electronic key including the electronic key relating to the authentication permission.

  According to the first aspect of the present invention, when the lock is unlocked with the electronic key and then locked again, the control means prohibits the unlocking with the electronic key. Even when an electronic key that has been turned on upon receipt of the activation signal is used, the lock cannot be unlocked, and the lock can be prevented from being unlocked against the user's will.

  According to a second aspect of the present invention, in the first aspect of the invention, when the control unit detects the unlocking of the lock after the control means prohibits the unlocking of the lock with the electronic key, Enables locking of the lock.

  According to the second aspect of the present invention, when the unlocking by the electronic key is prohibited and then unlocked by manual operation of the indoor locking / unlocking means provided in front of the lock, the unlocking by the electronic lock is performed again. Is possible.

  The invention of claim 3 authenticates authentication information transmitted from an electronic key that can be unlocked and locked in the invention of claim 2, and if authentication is possible, operates the actuator to The lock is locked and the unlocking of the lock with an electronic key other than the electronic key for authentication is prohibited.

  According to the third aspect of the present invention, it is possible to prevent the lock from being unlocked against the user's intention by prohibiting the unlocking and locking with the electronic key other than the electronic key possessed by the user.

  As described above, the invention according to claim 1 can not be unlocked even when using an electronic key that is turned on after receiving an activation signal. The risk of being unlocked can be reduced.

  According to the second aspect of the present invention, when unlocked by manual operation of the indoor locking / unlocking means provided in front of the lock, the user who goes out can be locked by using the electronic lock again. Can be locked using an electronic key.

  According to the third aspect of the present invention, it is possible to reduce the possibility that the electric lock is unlocked by a third party by preventing the lock from being unlocked against the user's will.

BRIEF DESCRIPTION OF THE DRAWINGS It is the schematic which shows an example of the electric lock system which concerns on embodiment of this invention, (A) is a schematic view at the time of seeing an electric lock system from the outdoor side, (B) from the indoor side, respectively. It is the flowchart which showed an example of the process which the controller in the electric lock system which concerns on embodiment of this invention detects and starts an electronic key. FIG. 3 is a flowchart illustrating an example of processing when the user returns home. FIG. 4 is a flowchart showing an example of processing when the user goes out.

  Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic diagram illustrating an example of an electric lock system 10 according to an embodiment of the present invention, where (A) is from the outdoor side, and (B) is from the indoor side, when the electric lock system 10 is viewed. FIG.

  As shown in FIG. 1A, the electric lock system 10 includes a controller 12 that controls locking and unlocking of a main lock 14A and an auxiliary lock 14B, which are a type of lock. The electric lock system 10 receives a signal from the electronic key 40 and transmits a signal to the electronic key 40, and a main lock 14A and an auxiliary lock that lock or unlock the door 30 under the control of the controller 12. 14B.

  When the locking operation is performed, the main lock 14A and the auxiliary lock 14B project the main dead bolt 22A and the auxiliary dead bolt 22B, respectively. The door 30 is locked by fitting the projecting main dead bolt 22A and auxiliary dead bolt 22B with a receiving seat (not shown) provided on the building side. The main dead bolt 22A and the auxiliary dead bolt 22B are driven by electric actuators provided on the main lock 14A and the auxiliary lock 14B, respectively.

  The antenna 16 is built in the outdoor handle 20 </ b> A for opening and closing the door 30. The outdoor handle 20A is provided with a trigger switch 18 that is pressed or touched by the user when the main lock 14A and the auxiliary lock 14B are unlocked with the electronic key 40. Since the trigger switch 18 is required to be unlocked, the main lock 14A and the auxiliary lock 14B are prevented from being inadvertently unlocked only by a signal from the electronic key 40.

  The antenna 16 and the trigger switch 18 are connected to the controller 12 via a signal line, and a signal from the electronic key 40 and a signal related to the operation of the trigger switch 18 are input to the controller 12. Further, the controller 12 outputs a command signal for locking or unlocking the main lock 14A and the auxiliary lock 14B via the signal line. In FIG. 1, signal lines are indicated by broken lines.

  In FIG. 1, a power line for supplying power to the controller 12, the main lock 14A, and the auxiliary lock 14B is indicated by a solid line. The power line is connected to the controller 12 and the auxiliary lock 14 </ b> B via a current-carrying metal fitting 24 provided on the hinge part side of the door 30. Further, the auxiliary lock 14B and the main lock 14A are connected by a power line, and power is also supplied to the main lock 14A via the auxiliary lock 14B.

  FIG. 1B is a schematic diagram of the electric lock system 10 on the indoor side. However, the indoor handle 20B for opening and closing the door 30 is different from FIG. 1A on the outdoor side. The indoor handle 20B is not provided with the trigger switch 18 and the antenna 16 unlike the outdoor handle 20A, but instead is provided with thumb turns 26A and 26B.

  The thumb turns 26A, 26B are manually rotated in a predetermined direction by a predetermined angle to cause the main dead bolt 22A and the auxiliary dead bolt 22B to protrude into the seats provided on the building side. Further, the thumb turns 26A and 26B are manually rotated at the predetermined angle in the direction opposite to the predetermined direction, so that the main dead bolt 22A and the auxiliary dead bolt 22B protruding from the seat are moved to the main lock 14A, Each is stored in the auxiliary lock 14B. A trigger switch similar to that on the outdoor side may be provided on the indoor side of the electric lock system 10. When the trigger switch is provided on the indoor side, the trigger switch is used to lock and unlock the indoor side by using the trigger switch instead of the thumb turns 26A and 26B.

  The main lock 14A and the auxiliary lock 14B incorporate sensors 42A and 42B that detect the locking or unlocking status. The sensors 42A and 42B detect the lock / unlock status of the main lock 14A and the auxiliary lock 14B by detecting changes in the positions of the main dead bolt 22A and the auxiliary dead bolt 22B, respectively. The sensors 42A and 42B are, for example, Hall sensors that detect a magnetic field. The sensors 42A and 42B detect changes in the magnetic field of sensor magnets (not shown) provided on the main dead bolt 22A and the auxiliary dead bolt 22B, respectively. The controller 12 determines the locking or unlocking status of the main lock 14A and the auxiliary lock 14B based on the change in the magnetic field detected by the sensors 42A and 42B.

  In the present embodiment, a sensor (not shown) for detecting the open / closed state of the door 30 may be separately provided. As an example, the sensor is a sensor that detects a magnetic field, such as a hall sensor, and detects an open / closed state of the door 30 by a change in the magnetic field of a sensor magnet provided in the door 30. When a sensor for detecting opening / closing of the door 30 is provided, the controller 12 detects that the door 30 is closed and the sensors 42A and 42B detect that the main lock 14A and the auxiliary lock 14B are locked. It can be determined that it is locked.

  The electronic key 40 includes a primary battery or a secondary battery as a power source, and can transmit ID information that is authentication information stored in a storage device such as an internal ROM (Read Only Memory) when the electronic key 40 is in an on state. It is. The electronic key 40 is off during normal times, but is turned on when the activation signal transmitted by the controller 12 is received.

  FIG. 2 is a flowchart showing an example of processing in which the controller 12 in the electric lock system 10 according to the present embodiment detects and activates the electronic key 40. As described above, in the present embodiment, the electronic key 40 is turned on when the activation signal transmitted from the controller 12 is received via the antenna 16. The transmitted activation signal has a limited reach in order to preserve the battery that is the power source of the electronic key 40. In the present embodiment, for example, the activation signal reaches from the antenna 16 to 2 to 3 meters.

  In step 200 of FIG. 2, an activation signal is transmitted from the controller 12. In step 202, it is determined whether or not there is a response signal from the electronic key 40. If a response signal is received, the process returns. If the determination in step 202 is negative, the procedure returns to step 200 and the transmission of the activation signal is continued.

  The response signal received by the controller 12 in step 202 includes ID information for identifying the electronic key 40, and the controller 12 determines whether or not the received ID information belongs to the registered user. ID authentication is performed. This process is different from the detection process of the electronic key 40 in FIG. 2, but if the authentication is determined to be for the user who has registered the electronic key 40 by ID authentication, the electronic key 40 is subsequently unlocked or When a signal relating to locking is input, control is performed to unlock or lock the main lock 14A and the auxiliary lock 14B.

  Communication between the controller 12 and the electronic key 40 is encrypted. As an example, the encryption method is a common key method encryption process such as TLS (Transport Layer Security). Further, the ID information is information composed of characters or symbols in a plain text state, and identifies each electronic key 40 by one ID information corresponding to one electronic key 40.

  The ID information of the electronic key 40 is stored in the storage device of the controller 12, and the controller 12 determines whether or not the ID information transmitted from the electronic key 40 exists in the ID information stored in the storage device. ID authentication is performed.

  FIG. 3 is a flowchart illustrating an example of processing when the user returns home. In step 300, the main lock 14A and the auxiliary lock 14B are unlocked according to the operation of the electronic key 40 and the trigger switch 18 from outside.

  In step 302, it is detected that the thumbturns 26A and 26B are manually locked. As described above, the electric lock system 10 according to the present embodiment detects changes in the positions of the main dead bolt 22A and the auxiliary dead bolt 22B by the sensors 42A and 42B, respectively, and thereby the main lock 14A and the auxiliary lock 14B. The status of locking or unlocking is detected. If a sensor for detecting the opening / closing of the door 30 is separately provided, in step 300, it may be detected that the door 30 is opened after the unlocking state is detected by the sensors 42A and 42B. In step 302, the lock state may be detected by the sensors 42A and 42B after detecting that the door 30 is closed. By detecting the open / closed state of the door 30, it can be determined whether or not the door 30 is securely locked.

  In step 304, the electronic key 40 used for unlocking in step 300 and the electronic key 40 in the detection area that is within the reach of the activation signal are prohibited from being collated, and the electronic key 40 in the detection area is unlocked. The operation of locking is prohibited and the process returns. In the detection area where the activation signal arrives, the electronic key 40 existing in the detection area is turned on. However, by prohibiting ID verification, a third party standing at the front door operates the trigger switch 18. Thus, unlocking the main lock 14A and the auxiliary lock 14B is prevented. The controller 12 stores the ID information of the electronic key 40 in the detection area in the storage device, and prohibits ID authentication using the electronic key 40.

  FIG. 4 is a flowchart showing an example of processing when the user goes out. In step 400, it is detected from the detection results of the sensors 42A and 42B that the thumbturns 26A and 26B are manually operated. In step 402, in response to the unlocking operation in step 400, ID collation of the electronic key 40 whose ID collation is prohibited in step 304 in FIG. 3 is permitted. In step 402, ID verification is permitted for all electronic keys 40 in the detection area, and unlocking and locking operations using the electronic key 40 are possible.

  In step 404, the ID information transmitted from the electronic key 40 is authenticated, and if authentication is possible, the main lock 14A and the auxiliary lock 14B are locked. In step 404, referring to the detection results of the sensors 42A and 42B, it may be determined whether or not the locking is surely performed depending on whether or not the main dead bolt 22A and the auxiliary dead bolt 22B are moved to the locking position. If a sensor for detecting the opening / closing of the door 30 is separately provided, in step 400, it may be detected that the door 30 has been opened after the unlocking state is detected by the sensors 42A and 42B. In step 404, the lock state may be detected by the sensors 42A and 42B after detecting that the door 30 is closed.

  In step 406, the ID verification using the electronic key 40 other than the electronic key 40 that has been authenticated in step 404 is prohibited, so that unlocking and locking with the electronic key 40 other than the electronic key 40 possessed by the user who has gone out is performed. The operation is prohibited and the process returns. As a result of the processing in step 406, the main lock 14A and the auxiliary lock 14B can be unlocked even if a key other than the electronic key 40 possessed by the user who has gone out is within the detection area where the activation signal arrives. Disappear. As a result, the main lock 14 </ b> A and the auxiliary lock 14 </ b> B can be prevented from being unlocked by the electronic key 40 that is turned on by being present in the detection area. The ID information of each of the electronic key 40 that permits and does not permit ID authentication and unlocking operation is stored in the storage device of the controller 12, and the controller 12 is based on the ID information stored in the storage device. Thus, whether or not ID authentication with the electronic key 40 is possible is determined.

  As described above, according to the present embodiment, in the electric lock system, it is possible to reduce the risk that the electric lock is unlocked by a third party.

10 electric lock system 12 controller 14A main lock 14B auxiliary lock 16 antenna 22A main dead bolt 22B auxiliary dead bolt 26A, 26B thumb turn 30 door 40 electronic key 42A, 42B sensor

Claims (3)

Locking or unlocking the door of the building by the power of the actuator or manual operation of the locking and unlocking means provided on the indoor side, and a lock including a sensor for detecting the locked or unlocked state,
An electronic key that can send authentication information in the on state;
Receiving means for receiving the authentication information;
Sending an activation signal to turn on the electronic key, authenticating the authentication information received by the receiving means, and if authentication is possible, unlocking the lock that was locked by operating the actuator, Control means for prohibiting the unlocking of the electronic key including the electronic key related to authentication when the sensor detects the locking of the lock after the unlocking of the lock;
With electric lock system.   2. The electric device according to claim 1, wherein when the sensor detects the unlocking of the lock after prohibiting the unlocking of the lock with the electronic key, the control means enables the locking of the lock with the electronic key. Lock system.   Authentication information transmitted from an electronic key that can be unlocked and locked is authenticated, and if authentication is possible, the actuator is operated to lock the lock and an electronic key other than the electronic key related to authentication The electric lock system according to claim 2, wherein unlocking of the lock is prohibited.

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