JP2009174224A - Door locking/unlocking control device and door locking/unlocking control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door locking/unlocking control device for conveniently registering a new electronic key while assuring security when an electronic key is lost, for example. <P>SOLUTION: The door locking/unlocking control device 3 comprises an EEPROM 32 capable of storing respective ID codes of a plurality of electronic keys 2a-2e (2, ...) owned by a user and used for locking/unlocking of an entrance door, and a door locking/unlocking control means allowing the entrance door to be locked/unlocked by the electronic key 2 on the condition that one of the ID codes registered in the EEPROM 32 is matched with the ID code transmitted from the electronic key 2. The electronic key 2 which is registered on the last occasion can be re-registered without a predetermined encryption authentication process. As for the registered electronic key or the electronic key 2 to be newly registered which is not re-registered when the above re-registration is conducted, locking/unlocking of the entrance door by the electronic key 2 is made possible, in the wake of this re-registration, provided that predetermined encryption authentication is successful. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a door locking / unlocking control device and a door locking / unlocking control system that are provided in a house or the like and control locking / unlocking of a door.

  Conventionally, two-way wireless communication has been performed between an electronic key possessed by a user as a member of a family living in a house and a door locking / unlocking control device provided in the house for controlling the locking / unlocking of the door Thus, a door locking / unlocking control system that automatically permits door locking / unlocking based on the wireless communication has been developed.

Such a door locking / unlocking control device is provided with an ID code storage memory for storing (registering) an ID code set uniquely for each electronic key (for registering each electronic key).
And in the door locking / unlocking control system, when the door of the house is locked / unlocked, the ID code of the electronic key and the ID code registered in the ID code storage memory are collated by the wireless communication, Locking / unlocking of the door is permitted on condition that both ID codes match (for example, see Patent Document 1).
Japanese Patent Laid-Open No. 10-18660

  However, in this door locking / unlocking control device, for example, when the user loses the electronic key, the electronic key is registered to prevent unauthorized use of the electronic key by a third party and to ensure security. It is necessary to delete (delete the ID code of the electronic key from the address). In such a case, it is necessary to delete all the electronic keys from the ID code storage memory and then prepare all the electronic keys to be registered again, and then re-register them, which is very troublesome for the user. It was content.

  On the other hand, there is a technique in which only the electronic key identified by the management number is selectively deleted based on the management number, and a new electronic key replacing the electronic key is registered in the ID code storage memory. However, in this case, it is necessary to remember the management number of the lost electronic key. However, since the user usually does not remember the management number of the lost electronic key, it is not convenient.

  The present invention has been made in order to solve the above-described problems, and its purpose is to provide a door solution that allows new registration of an electronic key to be conveniently performed while ensuring security when the electronic key is lost. An object of the present invention is to provide a lock control device and a door locking / unlocking control system.

  In order to solve the above-mentioned problems, the invention according to claim 1 is characterized in that an ID code storage means that can be stored by each user and that can store ID codes of a plurality of electronic keys used for locking and unlocking a door, and Door locking / unlocking control for permitting door locking / unlocking with the electronic key on condition that any ID code registered (stored) in the ID code storage means matches the ID code transmitted from the electronic key. In the door locking / unlocking control device provided with the means, re-registration of a previously registered electronic key or new registration of an electronic key to be newly registered can be executed without a predetermined encryption authentication, Regarding electronic keys that have been registered or newly registered last time and that were not registered at the time of the re-registration or new registration, triggered by the execution of registration or new registration Subject to establishment of the encrypted authentication, it made it possible to lock and unlock the door by the electronic key, and the gist.

  According to this configuration, without performing predetermined cryptographic authentication, triggered by the re-registration (registration) of the previously registered electronic key or the new registration (registration) of the newly registered electronic key, For electronic keys that have been registered or newly registered and that have not been re-registered at the time of the re-registration or new registration, the door of the door by the electronic key is not used unless a predetermined cryptographic authentication is established. For example, when an electronic key whose ID code is registered in the ID code storage means is lost, unauthorized use by the third party of the lost electronic key is effectively prevented. Security is ensured. For this reason, for example, a predetermined electronic authentication is established without distinguishing a lost electronic key from other electronic keys by a management number, so that a new electronic key that replaces the lost electronic key has security. It can be used easily and reliably while ensuring. For this reason, in order to ensure security, when using (registering) a new electronic key in place of a lost electronic key, for example, in addition to the new electronic key, other registered electronic keys are also registered. If all of them are not collected at once, the trouble of registering the electronic key is eliminated. Furthermore, the electronic key registered on the condition that the predetermined cryptographic authentication is established can be used immediately for unlocking and unlocking the door without being subject to the establishment of the cryptographic authentication again, which may impair user convenience. Absent.

  According to a second aspect of the present invention, in the door locking / unlocking control apparatus according to the first aspect, when the registered electronic key is re-registered, the same ID code as that previously registered for the electronic key is used. Is re-used, and a new ID code is registered when a new electronic key to be newly registered is registered.

  According to this configuration, when a registered electronic key is re-registered, the same ID code as that previously registered for the electronic key is used again, while when a newly registered electronic key is newly registered. Since only the new ID code is registered, it is possible to contribute to the saving of the ID code storage capacity of the ID code storage means.

  According to a third aspect of the present invention, in the door locking / unlocking control apparatus according to the first or second aspect, the encryption authentication mode is set by operating the first switch, and the encryption authentication mode is set. Then, the gist is that registration of the ID code of the one electronic key is impossible unless the predetermined cryptographic authentication is established.

  According to this configuration, the setting of the encryption authentication mode for enabling registration of a new electronic key in place of the lost electronic key can be easily and reliably performed by operating the first switch.

  The invention according to claim 4 is the door locking / unlocking control apparatus according to any one of claims 1 to 3, and is registered in the ID code storage means by operation of the second switch. The gist is that the ID code of the electronic key can be deleted.

  According to this configuration, the operation of the second switch can easily and reliably delete the registration of the lost or damaged electronic key, thereby contributing to the saving of the ID code storage capacity of the ID code storage means. The possibility of unauthorized use due to erroneous authentication of the electronic key is effectively eliminated.

  According to the fifth aspect of the present invention, a plurality of electronic keys possessed by the user and used for locking / unlocking the door, and the locking / unlocking of the door by each electronic key are verified by collating the ID code of each electronic key. The gist of the invention is that the door locking / unlocking control device according to any one of claims 1 to 4 is provided to allow.

  According to this configuration, when any one of the plurality of electronic keys is lost, a door locking / unlocking control system can be obtained in which registration (reuse) of a new electronic key can be conveniently performed while ensuring security. .

  According to the present invention, it is possible to provide a door locking / unlocking control apparatus and a door locking / unlocking control system that can perform new registration of an electronic key conveniently while ensuring security when the electronic key is lost.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments of the invention will be described with reference to the drawings.
Referring to FIG. 1, a door locking / unlocking control system 1 according to the present embodiment is provided at an entrance door (door) of a house, and an electronic key 2 possessed by each of a plurality of users living in the house. And a door locking / unlocking control device 3 provided on the house side. Then, bidirectional wireless communication is performed between the electronic keys 2 and the door locking / unlocking control device 3 to authenticate the ID, and locking / unlocking control of the entrance door is performed based on the authentication result.

  Each of the electronic keys 2 includes a transponder 21 that receives power via an activation radio wave having a predetermined frequency (here, LF band) transmitted from the door locking / unlocking control device 3, and uses the received power. Then, an ID code signal including an ID code (authentication code) set uniquely for each electronic key 2 is wirelessly transmitted to the door locking / unlocking control device 3.

  On the other hand, the door locking / unlocking control device 3 is electrically connected to the controller 30 housed in the entrance door of the house, and is disposed on the outdoor side of the entrance door, An outdoor antenna unit 40 that receives radio waves transmitted from the electronic keys 2 and an indoor operation panel 50 disposed on an indoor (indoor) side wall near the entrance door are provided.

  Specifically, the controller 30 includes a controller CPU 31 having a memory 31a in which a predetermined control program is stored, and an unlocking / unlocking of a front door that is electrically connected to the CPU 31 and accommodates the controller 30. There is provided an EEPROM 32 as an ID code storage means for storing each ID code of the usable regular electronic keys 2. In the present embodiment, three (a plurality) of electronic keys 2,... Are used as the regular electronic keys 2,. Hereinafter, for convenience of explanation, these three regular electronic keys 2,... Are referred to as electronic keys 2a to 2e, respectively, and are identical to the ID codes of the electronic keys 2a to 2e, respectively, and stored in the EEPROM 32. The ID codes are ID codes A to E. Further, the controller CPU 31 manages the electronic keys 2a to 2e (ID codes A to E) in association with the management numbers 1 to 5, respectively.

  The controller 30 is further provided with a motor driver 34 that is electrically connected to the controller CPU 31 and that receives a lock / unlock command signal (lock command signal, unlock command signal) generated by the CPU 31. . The controller 30 is electrically connected via the motor driver 34 to an electric thumb turn 35 that is provided at the entrance door and locks and unlocks the door. The operation of the electric thumb turn 35 is controlled by the controller CPU 31 by outputting the locking / unlocking command signal to the motor driver 34.

  The electric thumb turn 35 incorporates an unlocking state detection switch and a locking state detection switch (not shown) that are turned on when the electric thumb turn 35 is in the unlocked state and the locked state, respectively. When the electric thumb turn 35 is in the unlocked state or the locked state, a signal (unlocked state signal, locked state signal) indicating the fact is transmitted from the respective switches to the controller CPU 31. .

  Further, as shown in FIG. 2, the controller 30 is disposed inside a front door 4a (closed in FIG. 2) that can be opened and closed with respect to a wall 4w of the house 4 via a doorman 4c. . The outdoor antenna unit 40 is disposed on the outdoor surface of the entrance door 4a, while the electric thumb turn 35 is disposed on the indoor surface of the entrance door 4a. It is connected to the. Further, the entrance door 4a is provided on the side of the entrance door 4a opposite to the doorman 4c so as to be able to appear and retract by the electric thumb turn 35 toward the wall 4w of the house 4, and locks the entrance door 4a. A lock mechanism 38 having a dead bolt 38a is provided. Further, a latch device 39 having a door latch 39a for holding the entrance door 4a on the wall 4w of the house when the entrance door 4a is closed is disposed inside the entrance door 4a. A bar-like door handle 4b extending in the vertical direction is attached to the outdoor surface of the entrance door 4a for opening and closing the entrance door 4a.

  As shown in FIGS. 1 and 2, the controller CPU 31 is disposed in the outdoor antenna unit 40, and the entrance door 4a is unlocked (when the electric thumb turn 35 is unlocked), and The liquid crystal display 43 is electrically connected to display that the front door 4a is in a locked state (when the electric thumb turn 35 is in a locked state).

  In addition, the controller 30 is electrically connected to the controller CPU 31 and, when pressed for a long time (for example, 2 seconds or more), causes the door locking / unlocking control device 3 to register the electronic key 2, that is, each electronic key. 2 is a “registration mode” for storing the ID code 2 in the EEPROM 32, and a registration switch (SW) for confirming the registration of each electronic key 2 by short pressing (for example, about 1 second). [Registration button] 36 and a registered key deletion switch 37 as a second switch for deleting the ID codes of all the electronic keys 2,... Stored (registered) in the EEPROM 32 are provided. In FIG. 2, the registration switch 36 and the registered key deletion switch 37 are operably disposed on the side surface of the front door 4a of the controller 30 opposite to the doorman 4c.

  In addition to the liquid crystal display unit 43, the outdoor antenna unit 40 is provided with a transmission / reception circuit 41 that is electrically connected to the controller CPU 31 and has a transmission / reception antenna 42. The transmission / reception circuit 41 generates the activation radio wave based on the transponder activation signal input from the controller CPU 31 and transmits it to each electronic key 2 via the transmission / reception antenna 42. 2 is electrically connected to the controller CPU 31 on the outdoor surface of the outdoor antenna unit 40 shown in FIG. 2, and the “encryption authentication mode” described later for the door locking / unlocking control system 1 (door locking / unlocking control device 3). An encryption authentication mode switch (encryption authentication mode button) 44 is provided as a first switch for achieving the above.

  The controller 30 is electrically connected to the controller CPU 31 and is disposed on the entrance door 4a. The door opening / closing detection sensor 33 (in FIG. 2) detects the open / closed state of the entrance door 4a electromagnetically. (Not shown) is provided. The CPU 31 can recognize the open / closed state (open state and closed state) of the front door 4a via the door open / close detection sensor 33. The CPU 31 generates an open state signal when the entrance door 4a is in an open state, and generates a close state signal when the entrance door 4a is in a closed state. The transponder activation signal is output from the controller CPU 31 to the transmission / reception circuit 41 on condition that the front door 4a is closed. The closed state of the front door 4a includes both the locked state and the unlocked state.

  The activation radio wave is transmitted by the transmission / reception circuit 41 to a predetermined transmission area centered on the outdoor antenna unit 40 on the outdoor side of the entrance door 4a. That is, when the electronic key 2 is held over the outdoor antenna unit 40 by the user and the electronic key 2 enters the transmission area, the electronic key 2 receives the activation radio wave and receives the electromagnetic force of the activation radio wave. The ID code signal including its own ID code is modulated into a radio wave of a predetermined frequency (here, LF band) using the power generated in the transponder 21 by the action of the above, and the outdoor antenna unit 40 is connected via the transponder 21. It transmits to the transmission / reception circuit 41.

  When receiving the ID code signal via the transmission / reception antenna 42, the transmission / reception circuit 41 demodulates the ID code signal to generate a reception signal corresponding to the ID code signal, and outputs the reception signal to the controller CPU 31.

  Then, the controller CPU 31 determines whether or not the ID code included in the received signal matches any of the ID codes A to C stored in the EEPROM 32 (hereinafter referred to as “ID authentication”). ). When both ID codes match, the controller CPU 31 recognizes that the regular electronic key 2 (any one of the electronic keys 2a to 2e) is used for locking and unlocking the entrance door 4a, and When the entrance door 4a is locked, an unlock command signal is output to the motor driver 34 to unlock the entrance door 4a. On the other hand, when the entrance door 4a is unlocked, the entrance door 4a is opened. In order to lock, a locking command signal is output to the motor driver 34. Here, the controller CPU 31 determines that the ID code included in the received signal input from the transmission / reception circuit 41 is one of the ID codes A to E when both ID codes are matched by ID authentication. It is configured to identify which of the electronic keys 2a to 2e has been used for locking / unlocking the front door 4a by determining whether or not they match. As described above, in the present embodiment, the controller CPU 31 has a condition that the ID code of the electronic key 2 held over the outdoor antenna unit 40 matches any of the ID codes A to E registered in the EEPROM 32. It functions as a door locking / unlocking control means that permits door locking / unlocking.

  When the unlock command signal is input, the motor driver 34 drives the electric thumb turn 35 to the unlock side. When the lock command signal is input, the motor driver 34 drives the electric thumb turn 35 to the lock side.

  In addition, when the unlocking state detection switch of the electric thumb turn 35 is turned on, the controller CPU 31 transmits an unlocking state signal from the unlocking state detection switch, and the entrance door 4a is unlocked. Recognize that As a result, the controller CPU 31 recognizes that the unlocking of the front door 4a has been completed, displays the fact on the liquid crystal display unit 43 of the outdoor antenna unit 40, and the front door 4a shifts from the locked state to the unlocked state. And the management number (any one of 1 to 5) of the regular electronic key 2 (any one of the electronic keys 2a to 2e) used for unlocking is notified to the indoor operation panel 50.

  On the other hand, when the lock state detection switch of the electric thumb turn 35 is turned on, the controller CPU 31 transmits a lock state signal from the lock state detection switch and recognizes that the front door 4a is locked. To do. As a result, the controller CPU 31 recognizes that the locking of the front door 4a has been completed, displays the fact on the liquid crystal display unit 43 of the outdoor antenna unit 40, and the front door 4a has shifted from the unlocked state to the locked state. The room control panel 50 is notified of the fact and the management number (any one of 1 to 5) of the regular electronic key 2 (any one of the electronic keys 2a to 2e) used for locking.

  Returning to FIG. 1, in the present embodiment, the indoor operation panel 50 is provided with an indoor operation panel CPU 51 connected to the controller CPU 31 so as to be able to communicate with each other by serial communication. Then, the controller CPU 31 transmits a lock / unlock state signal (lock state signal, unlock state signal) to the indoor operation panel CPU 51 according to the lock / unlock state of the front door 4a, and opens / closes the front door 4a. Depending on the state, an opening / closing state signal (open state signal, closed state signal) of the front door 4a is transmitted.

  The indoor operation panel 50 is electrically connected to the indoor operation panel CPU 51, and based on the locking / unlocking state signal of the entrance door 4a transmitted from the CPU 31, the unlocking / unlocking state is displayed. A state notification LED 52 and an opening / closing state notification LED 53 that displays the opening / closing state of the front door 4a based on the opening / closing state signal of the front door 4a transmitted from the CPU 31 are provided. The unlocking state notification LED 52 is turned on when the entrance door 4a is unlocked, and is turned off when the entrance door 4a is unlocked. The open / close state notification LED 53 is connected to the entrance door 4a. It lights up when it is open, and turns off when it is closed.

  The indoor operation panel 50 is electrically connected to the indoor operation panel CPU 51 and displays (notifies) the management number (any one of 1 to 5) of the electronic key 2 used for the locking / unlocking operation 7 A segment LED 55 is provided. For example, when the electronic key 2 a is used for unlocking, the indoor operation panel CPU 51 displays the management number 1 of the electronic key 2 a on the 7-segment LED 55 based on the communication with the controller CPU 31. Similarly, when the electronic keys 2b and 2c are used, the management numbers 2 and 3 of the electronic keys 2b and 2c are displayed on the 7-segment LED 55, respectively. Thereby, the user can recognize the electronic key 2 (any one of 2a to 2e) used for unlocking.

  In the indoor operation panel 50 shown in FIG. 1, a push switch (push button) 54 for manually locking the entrance door 4a is electrically connected to the indoor operation panel CPU 51. For example, a user who is a resident of the house 4 uses the regular electronic key 2 (any of 2a to 2e) to complete the unlocking of the entrance door 4a and enters the room through the entrance door 4a. Thereafter, the entrance door 4a can be manually locked by operating the push switch 54 after confirming that the entrance door 4a is closed by the open / close state notification LED 53 of the indoor operation panel 50. . Here, when the unlocking of the front door 4a is completed, the management number of the regular electronic key 2 (any of 2a to 2e) used for unlocking is displayed on the 7-segment LED 55.

  When the push switch 54 is operated in this way, the CPU 51 for the controller notifies that fact to the CPU 31 for the controller, and when the entrance door 4a is locked, the CPU 31 unlocks the entrance door 4a. Therefore, while the unlocking command signal is output to the motor driver 34, when the front door 4a is unlocked, the unlocking command signal is output to the motor driver 34 to lock the front door 4a. . Here, when the entrance door 4 a is locked, the electric thumb turn 35 is driven to the unlocking side by the motor driver 34. On the other hand, when the front door 4a is unlocked in this way, the electric thumb turn 35 is driven to the locking side by the motor driver 34.

  When the locking of the entrance door 4a is completed, the lock state detection switch of the electric thumb turn 35 is turned on, and the controller CPU 31 confirms that the entrance door 4a is locked and that the locking is completed. It recognizes and displays that on the liquid crystal display part 43 of the outdoor antenna unit 40, and notifies the CPU 51 for indoor operation panel that it has shifted from the unlocked state to the locked state.

  Then, the indoor operation panel CPU 51 recognizes that the locking of the entrance door 4a is completed via the controller CPU 31, and turns off the locking / unlocking state notification LED 52 so that the entrance door 4a is locked. In addition, the display of the management number of the electronic key 2 by the 7-segment LED 55 is finished after a predetermined time.

  The door locking / unlocking control system 1 and the door locking / unlocking control device 3 according to the present embodiment are configured as described above, and the door locking / unlocking control device 3 re-registers the previously registered electronic key 2 (ID code). Registration or new registration of the electronic key 2 to be newly registered can be executed without performing predetermined encryption authentication. Then, with the execution of the re-registration or new registration as an opportunity, the electronic key 2 that has been registered or newly registered and that has not been re-registered at the time of execution of the re-registration or new registration, The entrance door 4a can be locked and unlocked by the electronic key 2 on condition that the encryption authentication is established.

  Hereinafter, an example of a method (registration process) for registering the ID code of the electronic key 2 to the door locking / unlocking control device 3 according to the present embodiment and operations related thereto will be described with reference to FIGS. To do. In the following registration process, when one user living in the house 4 loses the electronic key 2a, the electronic keys 2b and 2c (ID code) re-registered in the previous time and collected at the time of re-registration can be used. Registration, new registration of a new electronic key 2f (the ID code is referred to as ID code F) in place of the electronic key 2a, and re-registration of the electronic keys 2d and 2e that could not be collected at the time of the re-registration A process for executing registration will be described. The main registration process and other processes related to the registration process (temporary storage, encryption authentication setting) are stored in a predetermined control program stored in the memory 31a of the controller CPU 31 of the controller 30. Executed by. Here, the electronic key 2b, 2c is used for re-registration by one user residing in the house 4 after recognizing that the electronic key 2a has been lost. It corresponds to the electronic key 2 that can be collected. The electronic keys 2d and 2e are electronic keys 2 that could not be collected for the re-registration, and correspond to, for example, the electronic keys 2 possessed by still another user who lives in the house 4.

  First, in step S1 in FIG. 3, for example, a user who has lost the electronic key 2a receives a communication using a communication device such as a mobile phone, and another user wants to re-register the ID codes B and C. The electronic keys 2b and 2c are collected (prepared) (in this case, when a newly added electronic key 2f is prepared, the electronic key 2f is also collected and can be registered). .

  Next, in step S2, the registration switch 36 provided in the controller 30 when the unlocking state detection switch of the electric thumb turn 35 (see FIG. 1) is on and the front door 4a is unlocked and opened. Press and hold (for example, 2 seconds or more). Then, the controller CPU 31 sets the door locking / unlocking control device 3 to the “registration mode” for re-registering the ID codes B and C of the electronic keys 2b and 2c in the EEPROM 32, and proceeds to step S3. To do. This “registration mode” is not set unless the registration switch 36 provided on the side surface of the entrance door 4a is operated. That is, unless the front door 4a is unlocked and opened, the electronic keys 2b and 2c cannot be re-registered. Therefore, in this embodiment, it can be said that security is ensured in this sense.

  In the subsequent step S3 (“registration mode”), the electronic keys 2b and 2c to be re-registered are successively placed over the transmission area of the outdoor antenna unit 40. As a result, the ID codes B and C are transmitted as ID code signals by radio waves in the LF band in the electronic keys 2 b and 2 c, wirelessly transmitted to the transmission / reception circuit 41 of the outdoor antenna unit 40, and transmitted to the controller CPU 31. At this stage, the ID codes B and C transmitted to the CPU 31 are temporarily held by the controller CPU 31 and the storage (registration) in the EEPROM 32 is not yet confirmed.

  Further, in step S4 ("registration mode"), when the registration switch 36 is pressed for a short time (for example, about 1 second), the controller CPU 31 temporarily holds it without setting the "encryption authentication mode" to be described later. The re-registration of the ID codes B and C of the electronic keys 2b and 2c in the EEPROM 32 is confirmed. That is, unless the registration switch 36 is operated in step S4, the registration of the electronic keys 2b and 2c in the EEPROM 32 is not finalized.

  In the present embodiment, once the electronic keys 2b and 2c are re-registered in the “registration mode” without being set to the “encryption authentication mode” as described above, the re-registered electronic keys 2b and 2c are thereafter The electronic key 2a that has been lost and the electronic keys 2d and 2e that were not collected at the time of the re-registration can be used in comparison with the ID codes A and D of the entrance door 4a. , E is prohibited from being used even if it remains registered in the EEPROM 32. It should be noted that the registration process of the electronic keys 2b and 2c in a state where the “encryption authentication mode” is not set is executed in the same manner as the prior art, and is effective when the electronic key 2a is damaged as will be described later. It becomes.

  Next, in step S5 ("registration mode"), it is determined whether or not "encryption authentication mode" described later is set. In this case, since the “encryption authentication mode” is not set, the process proceeds to step S6. If “encryption authentication mode” is set, the process proceeds to step S10.

  In the following step S6, a new electronic key 2f (electronic key 2 not collected at the time of registration) is prepared in place of the lost electronic key 2a, or the electronic keys 2d, 2e (uncollected at the time of registration) are prepared. Prepare electronic key 2). In this case, as an assumed situation, for the former, for example, a user (a father or the like) who possessed the lost electronic key 2a returns home after preparing a new electronic key 2f to replace it, and enters the front door 4a. Standing in front of As for the latter, for example, it is conceivable that users (children or the like) who possess the electronic keys 2d and 2e return home with the electronic keys 2d and 2e, and stand in front of the entrance door 4a. In this case, if the lost electronic key 2a is found and the electronic key 2a is held over the transmission area of the outdoor antenna unit 40, the entrance door 4a cannot be unlocked as it is (about the electronic keys 2d and 2e). However, the entrance door 4a cannot be unlocked as it is). This effectively prevents the lost electronic key 2a from being discovered and illegally used by a third party other than the user residing in the house 4. At this time, the electronic key 2a and the electronic keys 2d and 2e are held over the transmission area, and at the same time, a signal such as “?” Is displayed on the liquid crystal display unit 43 of the outdoor antenna unit 40, and the electronic key 2a, the electronic key 2d, 2e is prohibited from being used.

  Next, in step S <b> 7, it is determined whether or not the encryption authentication mode switch 44 provided in the outdoor antenna unit 40 is operated. That is, when a signal such as “?” Is displayed on the liquid crystal display unit 43, if the switch 44 is pressed once for about 1 second, for example, the controller CPU 31 performs the encryption authentication mode switch. 44 is determined to have been operated. Then, the controller CPU 31 causes the door locking / unlocking control device 3 to newly register the ID code F of the new electronic key 2f and to reuse (re-register) the electronic keys 2d and 2e that were not collected at the time of the re-registration. ) To enable “encryption authentication mode”, and the process proceeds to step S8. On the other hand, if the short-press (operation) of the encryption authentication mode switch 44 is not executed, the processing here is temporarily terminated (the setting of “registration mode” or “encryption authentication mode” is canceled).

  In step S8 ("encryption authentication mode"), predetermined encryption authentication is executed. That is, the operation for the encryption authentication, in this embodiment, for example, 'for the encryption authentication mode switch 44, after performing a short press of about 1 second each twice continuously, after 1 second or more, The controller CPU 31 determines that the cryptographic authentication has been established by an operation of “performing a long press for 2 seconds or more” once, and the process proceeds to step S9. On the other hand, if encryption authentication has not been established, the processing here is temporarily terminated (setting of “registration mode” or “encryption authentication mode” is canceled). In order to store (set) the operation setting for encryption authentication, that is, a series of operations using the above-described encryption authentication mode switch 44 in the controller CPU 31, in the present embodiment, for example, the registration This can be done by short-pressing the switch 36 (about 1 second) and performing a series of operations as described above in the outdoor antenna unit 40 and then short-pressing the registration switch 36 again. Thereby, the control program stored in the memory 31a of the controller CPU 31 is executed, and the operation for encryption authentication is stored in the memory 31a. In addition, the operation for encryption authentication may be determined in advance among a plurality of users, and may be common knowledge, or may be changed each time using a communication device such as a mobile phone. You may contact me.

  In step S9 ("encryption authentication mode"), it is determined whether the ID code of the electronic key 2f or the electronic keys 2d and 2e matches the ID code of the registered electronic keys 2a to 2e. That is, when a new electronic key 2f is newly registered, it is determined in step S9 that the ID codes do not match, and the flow returns to (1) in the flow of FIG. 3, and the processing of steps S2 to S4 is performed for the electronic key 2f. By executing this, the ID code F can be newly registered (at this time, the management number “6” is assigned to the electronic key 2f). Prior to the processing in steps S2 to S4, a message such as “Please set to registration mode” is displayed on the liquid crystal display 43, and the operation of the registration switch 36 in steps S2 to S4 is performed. Is prompted. As described above, when the processes in steps S2 to S4 are performed in the “encryption authentication mode”, it is determined in the step S5 (“registration mode”) that the “encryption authentication mode” is set. Proceed to step S10. On the other hand, when re-registering the electronic keys 2d and 2e, it is determined in step S9 that the ID codes match, and the process proceeds to step S10.

  In step S10, the same ID codes D and E as the registered ID codes D and E are reused (re-registered) as they are for the electronic keys 2d and 2e, and for the electronic key 2f, A newly registered ID code F is newly registered. After that, the door lock / unlock control device 3 can be used to lock and unlock the front door 4a for the electronic keys 2d and 2e and the electronic key 2f. Further, after this step S10, the processing here is temporarily terminated (setting of “registration mode” or “encryption authentication mode” is canceled).

  As described above, in this embodiment, once the collected electronic keys 2b and 2c are re-registered in the “registration mode” without being set in the “encryption authentication mode”, predetermined encryption authentication is executed, Unless the authentication is established, new registration of the new electronic key 2f in place of the lost electronic key 2a cannot be performed, and the electronic keys 2d and 2e that have not been collected at the time of re-registration are also described above. If the cryptographic authentication is executed and the cryptographic authentication is not established, re-registration cannot be performed.

  In addition, once the electronic keys 2d to 2f are registered on condition that the encryption authentication is established, when the electronic keys 2d to 2f are reused, the establishment of the encryption authentication is not required. The convenience of is not impaired.

  Note that the registration process of the new electronic key 2f in the state set to the “password authentication mode” prevents unauthorized use of the electronic key 2a by a third party when the original electronic key 2a is lost. This is to ensure security. Therefore, when the original electronic key 2a is damaged or lost abroad, there is no possibility that the electronic key 2a is illegally used by a third party. By performing registration processing (steps S2 to S4) similar to the technology, new registration of the new electronic key 2f can be simplified.

  In the present embodiment, all the registered ID codes A to E of the registered electronic keys 2a to 2e are deleted by operating the registered key deletion switch 37 disposed on the side surface of the entrance door 4a. be able to. In this deletion process, the ID code A of the lost electronic key 2a is deleted and the ID code of the EEPROM 32 is deleted before re-registering the registered electronic keys 2b and 2c and newly registering a new electronic key 2f. This is effective when saving (refreshing) the storage capacity. Therefore, this operation is preferably performed before the “registration mode” is first set in the flow of FIG.

According to the door locking / unlocking control device 3 and the door locking / unlocking control system 1 of the present embodiment, the following operations and effects can be obtained.
(1) Registered or newly registered when triggered by re-registration of the previously registered electronic keys 2b and 2c or new registration of the newly registered electronic key 2f without performing a predetermined cryptographic authentication. Regarding the electronic key 2d, 2e, or electronic key 2f that is the electronic key 2 to be registered and was not registered at the time of the re-registration or new registration, the electronic key 2d is used unless a predetermined cryptographic authentication is established. , 2e, or the electronic key 2f, the door 4a cannot be locked and unlocked. For example, when the electronic key 2a in which the ID code A is registered in the EEPROM 32 is lost, the lost electronic key 2a Unauthorized use by a third party is effectively prevented and security is ensured.

  (2) For this reason, for example, the lost electronic key 2a and the other electronic keys 2b to 2e are distinguished by their management numbers 1 and 2 to 5, and the ID code A of the lost electronic key 2a is distinguished. The new electronic key 2f, which replaces the lost electronic key 2a, can be used easily and reliably while ensuring security by establishing a predetermined cryptographic authentication without selectively deleting the password based on the management number 1 become able to. For this reason, in order to ensure security, when using (registering) a new electronic key 2f in place of the lost electronic key 2a, for example, in addition to the new electronic key 2f, If the electronic keys 2b to 2e are not collected all at once, the trouble that the electronic keys 2,.

  (3) Furthermore, for the newly registered electronic key 2f or the re-registered electronic keys 2d and 2e on the condition that the predetermined cryptographic authentication is established, the entrance door 4a is immediately not subject to the establishment of the cryptographic authentication again. Since it can be used for locking and unlocking, user convenience is not impaired.

  (4) New registration of a new electronic key 2f to replace the lost electronic key 2a or re-registration of electronic keys 2d and 2e that have not been collected by operating the encryption authentication mode switch 44 provided on the outdoor antenna unit 40. The setting to the “encryption authentication mode” for enabling this can be performed easily and reliably.

  (5) When re-registering the registered electronic keys 2b to 2e, the same ID codes B to E as the ID codes B to E previously registered for the electronic keys 2b to 2e are reused. When the electronic key 2f to be registered is newly registered, only the new ID code F is registered, which can contribute to saving the storage capacity of the ID code of the EEPROM 32.

  (6) Registration of the lost or damaged electronic key 2a can be easily and reliably deleted by operating the registered key deletion switch 37. This contributes to saving of the storage capacity of the ID code of the EEPROM 32 and the electronic key. The possibility of unauthorized use due to incorrect authentication of the key 2a is effectively eliminated.

  (7) If one of the electronic keys 2,... (For example, the electronic key 2a) is lost by the plurality of electronic keys 2,. The door locking / unlocking control system 1 can be obtained in which (reuse) can be performed conveniently while ensuring security.

The above embodiment may be modified as follows.
In the above embodiment, the door locking / unlocking control device 3 enables the controller CPU 31 to register the electronic keys 2d and 2e and the electronic key 2f in the EEPROM 32 on condition that predetermined encryption authentication is executed and established, The entrance door 4a can be "unlocked" by the electronic keys 2d to 2f on the condition that the encryption authentication is established. However, the present invention is not limited to this, and it is of course possible to “lock” the front door 4a with the electronic keys 2d to 2f on the condition that the encryption authentication is established.

  In the above embodiment, regarding the operation for cryptographic authentication, 'Cryptographic authentication mode switch 44 performs two short presses of about 1 second each time, and then performs two or more seconds after 1 second or more. Is a series of operations using the encryption authentication mode switch 44. However, the present invention is not limited to this, and the operation for the encryption authentication is, for example, 'After pressing the encryption authentication mode switch 44 for about 2 seconds, immediately press the button for about 1 second once more. Alternatively, in addition to the encryption authentication mode switch 44, another switch or sensor provided in the outdoor antenna unit 40 may be used.

  In the above embodiment, the electronic keys 2a to 2e are distinguished (identified) by the management numbers 1 to 5, respectively. However, in the technical idea of the present invention, such management numbers 1 to 5 are used. It is not always necessary to distinguish between the plurality of electronic keys 2. According to the embodiment, when predetermined cryptographic authentication is executed and the cryptographic authentication is established, the lost electronic key 2a is replaced without deleting the registration of the ID codes D and E of the electronic keys 2d and 2e. It becomes possible to register the ID code of the new electronic key 2f. Thus, even if the electronic keys 2a to 2e are not distinguished from each other by the management numbers 1 to 5, unauthorized use by the third party of the lost electronic key 2a can be prevented easily and reliably, and security can be ensured.

  In the above-described embodiment, the registration of the lost or damaged electronic key 2a can be deleted by operating the registered key deletion switch 37. However, it is not essential to provide such a switch 37. If there is no risk of unauthorized use due to authentication, all past ID codes of the electronic key 2 may remain in the EEPROM 32 as ID code storage means.

The block diagram which shows the structure of the door locking / unlocking control system concerning embodiment of this invention. The perspective view which shows the state by which the door locking / unlocking control apparatus (except an indoor operation panel) concerning embodiment of this invention is arrange | positioned at the entrance door of a house. The flowchart figure which shows the processing flow of the method of registering the ID code of an electronic key with respect to the door locking / unlocking control apparatus concerning embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Door locking / unlocking control system, 2 (2a-2f) ... Electronic key, 3 ... Door locking / unlocking control device, 4 ... Housing, 4a ... Entrance door, 30 ... Controller, 31 ... Controller CPU, 31a ... Memory, 32 ... EEPROM, 40 ... Outdoor antenna unit, 50 ... Indoor operation panel, 51 ... CPU for indoor operation panel, 55 ... 7 segment LED.

Claims (5)

ID code storage means that can be stored by the user and can store each ID code of a plurality of electronic keys used for locking and unlocking the door, and any ID code registered (stored) in the ID code storage means In the door locking / unlocking control device provided with the door locking / unlocking control means for permitting the locking / unlocking of the door with the electronic key on the condition that the ID code transmitted from the electronic key matches.
It is configured so that re-registration of a previously registered electronic key or new registration of a new electronic key can be executed without going through a predetermined cryptographic authentication,
With the execution of the re-registration or new registration as an opportunity, the encryption key is used for an electronic key that was previously registered or newly registered and that was not registered when the re-registration or new registration was executed. The door locking / unlocking control device is characterized in that the door can be locked / unlocked with the electronic key on the condition that In the door locking / unlocking control apparatus according to claim 1,
When re-registering the registered electronic key, the same ID code as that previously registered for the electronic key is used. On the other hand, when newly registering an electronic key to be newly registered, a new ID code is registered. A door locking / unlocking control device that allows registration. In the door locking / unlocking control apparatus according to claim 1 or 2,
The encryption authentication mode is set by operating the first switch,
A door locking / unlocking control device configured so that registration of the ID code of the electronic key is impossible unless the predetermined encryption authentication is established when the encryption authentication mode is set. In the door locking / unlocking control device according to any one of claims 1 to 3,
A door locking / unlocking control apparatus capable of erasing ID codes of all electronic keys registered in the ID code storage means by operating a second switch.   A plurality of electronic keys possessed by a user and used for door locking / unlocking, and locking / unlocking of the door by each electronic key are permitted through verification of an ID code of each electronic key. A door locking / unlocking control system comprising the door locking / unlocking control device according to any one of Items 4 to 6.

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