JP5824102B2 - Door lock control system - Google Patents

Description

  The present invention relates to a door lock control system that controls the operation of a door lock.

  2. Description of the Related Art Conventionally, a door lock control system capable of operating a door lock provided on a door of a building wirelessly with an electronic key is well known (see Patent Document 1, etc.). In this type of door lock control system, wireless ID verification is performed between a building and an electronic key. As this ID collation, for example, both an electronic key ID collation for confirming the validity of the electronic key ID registered in the electronic key and a door ID collation for confirming the validity of the door ID registered in the door are executed. Embodiments are known.

JP 2007-162310 A

  As shown in FIG. 5, in this type of door lock control system 81, a plurality of doors 82a, 82b, 82c, and 82d provided in a building are connected by a communication line 83, and for example, an electronic key is connected to one door 82a. When 84 is registered, a technique in which the electronic key 84 is automatically registered in the other doors 82b to 82d is being studied. Specifically, the electronic key ID written in the electronic key 84 is registered in the door 82a, and the door ID written in the door 82a is registered in the electronic key 84. The electronic key ID and door ID registered in the door 82 a are registered in the doors 82 b to 82 d through the communication line 83, so that the doors 82 a to 82 d of one electronic key 84 can be shared. If this technique is adopted, the electronic key 84 can be registered in the plurality of doors 82a to 82d by a single registration operation, so that there is an advantage that the registration operation is facilitated.

  However, in this case, since there are a plurality of doors 82a to 82d having the same electronic key ID and door ID, there is a problem that security is not good in terms of managing the door ID. Therefore, there is a need to maintain the security of the door ID while maintaining the convenience of registration.

  An object of the present invention is to provide a door lock control system capable of managing door IDs with high security.

The door lock control system that solves the above-mentioned problems can identify a door ID that can identify the door and the electronic key when the door lock provided on the door of the building is operated wirelessly by an electronic key. In the configuration in which verification of the electronic key ID is imposed and the door lock is operated after confirming whether or not these verifications are established, one of the plurality of doors electrically connected through the communication line is selected. The electronic key is registered on the door by registering the electronic key ID of the electronic key in the door and registering the door ID of the door to which the electronic key is currently registered in the electronic key. a set of ID, by registering to other door via the communication line, a registration execution unit that allows sharing the electronic key in a plurality of the door, whether the connection is released A release monitor for viewing, when the connection is released, and a ID management unit for erasing the door ID set to the door by the registration.

  According to this configuration, when registering the electronic key to the door, the electronic key ID and the door ID are registered as a set in the electronic key and the door, and the set of the electronic key ID and the door ID is connected through the communication line. By writing to other doors, one electronic key can be shared by a plurality of doors. Further, when the door is disconnected by the communication line, the door ID written at the time of registration is deleted. Therefore, it is not necessary to leave the door ID written at the time of registration as it is, so that the door ID can be managed with high security.

  In the door lock control system, the ID management unit preferably returns the door ID to the original door ID before registration when the connection is released. According to this configuration, after the door is disconnected, the original door ID can be used again.

  In the door lock control system, it is preferable that the ID management unit does not restore the previously registered door ID even if the door is connected again after the connection is released. According to this configuration, even if the door is reconnected after the door is disconnected, the door ID does not return to the original one. For example, security is secured against unauthorized acquisition of the door ID by a third party or the like. It becomes possible to do.

  In the door lock control system, the release monitoring unit is provided in each of the doors, and monitors the voltage of a communication line connection port provided in the door control unit that manages the operation of the door lock. It is preferable to determine whether or not is released. According to this configuration, it is possible to simply determine whether or not the door is disconnected.

  According to the present invention, the door ID can be managed with high security.

The block diagram of the door lock control system of one Embodiment. The electronic key and door state figure before registering an electronic key in a door. The operation | movement schematic diagram when registering an electronic key in a door. The operation | movement schematic diagram when the connection of a door is cancelled | released. The operation | movement outline | summary figure which shows an example which registers an electronic key into a door.

Hereinafter, one embodiment of a door lock control system will be described with reference to FIGS.
The building 1 includes a door lock control system 5 that can wirelessly operate a door lock 3 provided on a door 2 of the building 1 by an electronic key 4. The door lock control system 5 is preferably a key operation-free system that controls the door lock 3 by executing ID collation triggered by communication from the building 1 under a narrow communication area, for example. The door lock control system 5 may control, for example, both locking and unlocking of the door lock 3.

  Hereinafter, the operation of the door lock 3 by the key operation free system is referred to as “key free operation”. Further, the communication of the key operation free system is referred to as “smart communication”, and the ID verification performed in the communication is referred to as “smart verification”.

  The communication of the key operation free system is, for example, bidirectional using communication of building 1 → electronic key 4 using radio waves in the LF (Low Frequency) band, and communication of electronic key 4 → building 1 using radio waves in the UHF (Ultra High Frequency) band. Narrow-area communication (communication distance: several meters) is preferable. The key-free operation is an operation in which, for example, the operation of the door lock 3 is permitted or executed if the smart verification according to the key operation-free system is established without operating the electronic key 4.

  The electronic key 4 includes a key control unit 6 that controls the operation of the electronic key 4, a reception antenna 7 that receives radio waves in the electronic key 4, and a transmission antenna 8 that transmits radio waves in the electronic key 4. In the memory 9 of the key control unit 6, an electronic key ID that is a unique ID of the electronic key 4, a door ID assigned to each door 2, and an encryption key 10 used at the time of smart verification are written and stored. The receiving antenna 7 receives, for example, LF radio waves. The transmission antenna 8 transmits, for example, UHF radio waves.

  For example, a plurality (four in this example) of doors 2 are provided in one or a plurality of buildings 1. In the case of this example, these doors 2 are referred to as a first door 2a, a second door 2b, a third door 2c, and a fourth door 2d. The first door 2 a to the fourth door 2 d are connected by a communication line 11 provided in the building 1. Thereby, the first door 2 a to the fourth door 2 d can transmit and receive various signals through the communication line 11. The communication line 11 may be a LAN (Local Area Network), for example.

  The door lock control system 5 receives the radio waves around the door 2, the door control unit 12 that controls the operation of the door 2, the transmission antenna 13 that transmits radio waves around the door 2, and the door 2. And a receiving antenna 14. In the memory 15 of the door control unit 12, an electronic key ID registered in the door 2, a door ID that can identify each door 2, and an encryption key 16 that is used during smart verification are written and stored. The transmission antenna 13 transmits, for example, LF radio waves. The receiving antenna 14 receives, for example, UHF radio waves. The transmission antenna 13 and the reception antenna 14 may be disposed on the wall of the building 1, for example. The door lock 3 may be, for example, an electric lock that inserts and removes a dead bolt using an actuator as a drive source. The door control unit 12 may be a control panel in which IC and switch elements are mounted on a substrate, for example.

  When the electronic key 4 enters the communication area (smart communication area) of the transmission antenna 13 of the predetermined door 2, smart communication is executed. Specifically, when the electronic key 4 receives the wake signal transmitted from the transmission antenna 13, the electronic key 4 is activated to return an ACK, and in the subsequent communication process, door ID verification, challenge response authentication, electronic key ID Perform various verifications. The door ID collation is a collation in which a door ID that is a unique ID of each door 2 is transmitted to the electronic key 4 so that the electronic key 4 confirms the door ID. In the challenge response authentication, a challenge code whose code changes every time it is transmitted is transmitted from the door 2 to the electronic key 4 and passed through the encryption key 10 of the electronic key 4, and this response code is returned to the door 2. This is verification for confirming the validity of the response code of the electronic key 4 based on the response code similarly calculated by the key 16. The electronic key ID collation is a collation in which the validity of the electronic key ID registered in the electronic key 4 is confirmed by the door 2. When the door control unit 12 confirms that all of these verifications are established, the door control unit 12 establishes smart verification and permits or executes the locking and unlocking of the door 2.

  The door lock control system 5 includes a registration execution unit 17 that manages an operation when registering the electronic key 4 in the door 2. The registration execution unit 17 is provided in the door control unit 12, for example. When registering the electronic key 4 to a certain door 2 among the plurality of doors 2 electrically connected through the communication line 11, the registration execution unit 17 and the electronic key ID of the electronic key 4 and the current electronic key are registered. 4 is registered in the other door 2 through the communication line 11 so that the electronic key 4 can be shared by the plurality of doors 2.

  The door lock control system 5 includes a release monitoring unit 18 that monitors whether or not the connection is released in the plurality of doors 2 provided in the building 1. The release monitoring unit 18 is provided in the door control unit 12, for example. The release monitoring unit 18 may determine whether or not the connection has been released by monitoring the voltage of the communication line connection port 19 provided in the door control unit 12 that manages the operation of the door lock 3.

  The door lock control system 5 includes an ID management unit 20 that deletes the door ID set for the door 2 by key registration when the connection of the door 2 is released. The ID management unit 20 is provided in the door control unit 12, for example. When the connection of the door 2 is released, the ID management unit 20 preferably returns the door ID to the original door ID before key registration.

Next, operation | movement of the door lock control system 5 is demonstrated using FIGS.
[Registration of electronic key]
FIG. 2 illustrates an outline of the door 2 and the electronic key 4 before the electronic key 4 is registered in the door 2. In the electronic key 4 before registration work, “key ID 1” is written in advance in the electronic key ID writing area of the memory 9, and the door ID writing area of the memory 9 is “blank”. Before the registration work, the first door 2a to the fourth door 2d have “door ID1”, “door ID2”, “door ID3”, and “door ID4” in the door ID writing areas of the memories 15a, 15b, 15c, and 15d, respectively. It is written in advance, and the electronic key ID writing area is “blank”.

  FIG. 3 shows an outline of the operation when the electronic key 4 is registered in the door 2. Here, for example, a case where the electronic key 4 is registered in the first door 2a is taken as an example. In registering the electronic key 4 in the first door 2a, the operation mode of the first door 2a is first switched to “registration mode”. To switch to the registration mode, for example, a locking / unlocking switch (door lock operation unit: not shown) provided on the outer wall of the first door 2a is operated with a predetermined operation pattern, or a dedicated control provided on the door control unit 12 is used. It can be realized by operating a switch. Thereby, the registration execution part 17 (17a) of the 1st door 2a starts operation | movement.

  When switching to the registration mode, the registration execution unit 17a executes communication (key registration communication) using the communication network of the key operation free system between the first door 2a and the electronic key 4. The key registration communication is communication that can be executed by, for example, the door control unit 12 and the electronic key 4 in the registration mode, and confirms whether the communication standards of the electronic key 4 and the door control unit 12 match. Alternatively, encryption communication may be used to ensure security. When the registration execution unit 17a acquires the electronic key ID “key ID1” from the electronic key 4 in the key registration communication, the registration execution unit 17a writes the “key ID1” in its own memory 15a. Further, the registration execution unit 17 a transmits the door ID “door ID 1” to the electronic key 4 in this key registration communication, thereby causing the electronic key 4 to write “door ID 1” in the memory 9. Thus, the electronic key 4 is registered in the first door 2a.

  When the electronic key 4 is registered in the first door 2a, the first door 2a becomes a “master door” and the “subordinate doors” of the second door 2b, the third door 2c, and the fourth door 2d become electronic. The operation of registering the key 4 is executed. At this time, the registration execution unit 17a outputs an electronic key ID registration request Sdem to the second door 2b to the fourth door 2d through the communication line 11 in the building 1. The electronic key ID registration request Sdem includes an electronic key ID “key ID1” acquired in key registration communication executed between the first door 2a and the electronic key 4 at the time of registration, and a door that is a unique ID of the first door 2a. The ID “door ID1” and a command for requesting the association of the electronic key ID may be included.

  When the electronic key ID registration request Sdem is input from the first door 2a, the registration execution unit 17b of the second door 2b writes the “key ID1” and “door ID1” included therein into its own memory 15b, thereby creating an electronic The key 4 is registered in the second door 2b. In addition, the registration execution unit 17c of the third door 2c and the registration execution unit 17d of the fourth door 2d execute the same key registration by accepting the electronic key ID registration request Sdem, that is, the writing operation of the memories 15c and 15d. To do. As described above, it is possible to lock and unlock all of the first door 2a to the fourth door 2d with one electronic key 4.

[Operation when door connection is released]
As shown in FIG. 4, it is assumed that the first door 2a to the fourth door 2d are disconnected after the key registration. When the connection is released, for example, when the communication line 11 is disconnected, the voltage of the communication line connection port 19 in the door control unit 12 changes to “0” or a value in the vicinity thereof. When the release monitoring unit 18 of the subordinate doors (the second door 2b to the fourth door 2c) detects that the voltage of the communication line connection port 19 is equal to or lower than the threshold value, the door connection that notifies the door connection is released. The cancellation notification Sr is output to the corresponding ID management unit 20. That is, the release monitoring unit 18b outputs the door connection release notification Sr to the ID management unit 20b, the release monitoring unit 18c outputs the door connection release notification Sr to the ID management unit 20c, and the release monitoring unit 18d sends the door connection release notification Sr to the ID management unit 20d. The door connection release notification Sr is output.

  When the ID management units 20b to 20d of the subordinate doors (second door 2b to fourth door 2d) input the door connection release notification Sr from the paired release monitoring units 18b to 18d, respectively, the door ID is set as a trigger. Return to the original door ID before connection. Specifically, the door ID of the second door 2b is returned to the original “door ID2”, the door ID of the third door 2c is returned to the original “door ID3”, and the door ID of the fourth door 2d is changed to the original door ID. The original “door ID 4” is restored. Thereby, after the connection is released, the electronic key 4 registered in the first door 2a cannot lock / unlock the second door 2b to the fourth door 2d, and security is secured against unauthorized locking / unlocking.

  Even if these doors 2 are connected again after the connection of the doors 2 is released, the ID management unit 20 (20b to 20d) does not restore the previously registered door ID. That is, after the connection is released, even if the door 2 is connected again, the door ID of the subordinate door (second door 2b to fourth door 2d) is not returned to the door ID of the master door (first door 2a). Is preferred. Thus, if reissuance of the door ID is not possible, it becomes more advantageous to secure the security for the management of the door ID.

According to the configuration of the present embodiment, the following effects can be obtained.
(1) When registering the electronic key 4 in the door, the electronic key ID and the door ID are registered as a set in the first door 2a and the electronic key 4, and the set of the electronic key ID and the door ID is set in the communication line The other electronic doors 2b to 2d connected to each other are also written so that one electronic key 4 can be shared by the plurality of first doors 2a to 4d. Further, when the connection of the first door 2a to the fourth door 2d by the communication line 11 is released, the door ID written at the time of registration is deleted from the second door 2b to the fourth door 2d. Therefore, since the door ID written at the time of registration does not have to be left as it is, the door ID can be managed with high security.

  (2) When the connection of the doors 2 is released, the door ID written in each door 2 is returned to the door ID before key registration. Therefore, after the door 2 is disconnected, the original door ID can be used again.

  (3) Even if the door 2 is connected again after the connection is released, the door ID written in the past key registration can not be restored. Therefore, for example, security can be secured against unauthorized acquisition of a door ID by a third party or the like.

  (4) Whether or not the connection of the door 2 is released is determined by monitoring the voltage of the communication line connection port 19 of the door control unit 12. Therefore, it is possible to simply determine whether or not the door 2 is disconnected.

Note that the embodiment is not limited to the configuration described so far, and may be modified as follows.
Whether or not the door 2 is disconnected may be determined by, for example, providing a dedicated wire for connection confirmation on the communication line 11 and confirming whether or not the wire is disconnected.

It is possible to prevent the door ID of the subordinate door from being returned to the original door ID when the connection of the door 2 is released.
-Parts groups, such as the door control part 12, are not restricted to being provided in the door 2, For example, you may provide in other places, such as the outer wall of the building 1. FIG.

The key registration is not limited to being performed at the first door 2a, but can be performed at any of the other doors 2, that is, the second door 2b to the fourth door 4d.
For the key-free operation, various authentication systems such as a system using RFID (Radio Frequency IDentification), a system using short-range wireless, and a system using Bluetooth (registered trademark) can be adopted.

-Key-free operation should just be operation in which ID collation implemented by the communication from the building 1 was imposed.
The transmission antenna 13 on the building 1 side is not limited to being provided on the door 2, and can be arranged at other positions such as the wall of the building 1.

The smart communication area may be formed from a separate area by each antenna, for example, by providing the outdoor transmission antenna and the indoor transmission antenna in the building 1.
-When providing an outdoor transmitting antenna and an indoor transmitting antenna in the building 1, the aspect provided only in one of these may be taken. Incidentally, in this case, only one of the outdoor determination for determining whether or not the electronic key 4 is outdoors or the indoor determination for determining whether or not the electronic key 4 is indoors can be performed.

-The frequency of the radio wave for ID verification can be changed to a frequency other than LF and UHF.
The electronic key 4 is not limited to a key-dedicated terminal, and may be a portable terminal such as a high-function mobile phone having a key function.

The antenna on the building 1 side is not limited to transmission and reception, and may be a single antenna capable of both transmission and reception.
The number of buildings 1 is not limited to one, and a plurality of buildings 1 may be provided.

Next, technical ideas that can be grasped from the above-described embodiment and other examples will be described below together with their effects.
(A) In the door lock control system, the registration execution unit sets, as a master door, a door in which the registration of the electronic key is executed among the plurality of doors, and sets other doors as subordinate doors. According to this configuration, the doors can be ranked, so that the doors can be easily managed.

  DESCRIPTION OF SYMBOLS 1 ... Building, 2 (2a-2d) ... Door, 3 ... Door lock, 4 ... Electronic key, 5 ... Door lock control system, 11 ... Communication line, 12 ... Door control part, 17 (17a-17d) ... Registration execution , 18 (18b to 18d) ... release monitoring unit, 19 ... communication line connection port, 20 (20b to 20d) ... ID management unit.

Claims (4)

When a door lock provided on a building door is operated wirelessly with an electronic key, verification of a door ID that can identify the door and verification of an electronic key ID that can identify the electronic key are imposed. In the door lock control system that operates the door lock after confirming whether or not
Among a plurality of doors which are electrically connected through a communication line, the registration of the electronic key to a certain one door, and registering the electronic key ID of the electronic key in the door, trying now registers the electronic key By registering the door IDs of the existing doors in the electronic key, and registering these ID sets in other doors through the communication line, the electronic key can be shared by the plurality of doors. A registration execution unit;
A release monitoring unit for monitoring whether or not the connection is released;
An door lock control system comprising: an ID management unit that deletes the door ID set for the door by the registration when the connection is released. 2. The door lock control system according to claim 1, wherein when the connection is released, the ID management unit returns the door ID to the original door ID before registration. 3. The door lock control system according to claim 1, wherein the ID management unit does not return the previously registered door ID even if the door is connected again after the connection is released. 4. . Whether the connection is released by monitoring the voltage of a communication line connection port provided in each door and provided in each door control unit that manages the operation of the door lock. It judges, The door lock control system as described in any one of Claims 1-3 characterized by the above-mentioned.