JP2012188828A - Electric lock system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent fraudulent unlocking from an outdoor side to an electric lock having an anti-panic function.SOLUTION: An electric lock system includes: handle operation detection means 10c for outputting operation detection signals when a turning operation of an indoor side lever handle 10b is detected; a human body detection unit 12 provided near the indoor side lever handle 10b, for detecting closeness to the indoor side lever handle 10b from the indoor side and outputting human body detection signals; a notification unit 16 for issuing a notice for an intruder; and an electric lock control unit 13 for outputting a notice indicating that the indoor side lever handle 10b is fraudulently unlocked when the human body detection signals from the human body detection unit 12 are not inputted when the operation detection signals from the handle operation detection means 10c are inputted.

Description

  The present invention relates to an electric lock system that electrically locks and unlocks a lock built in a door based on a predetermined operation by a user, and in particular, an electric lock having an anti-panic function prevents unauthorized unlocking from the outdoors. The present invention relates to an electric lock system.

  2. Description of the Related Art Conventionally, an electric lock system with high security has been adopted at lock portions of various doors of a building in order to avoid intrusion of a suspicious person. In this type of electric lock system, a driving means such as a motor or solenoid is driven by a specific locking / unlocking signal, and the electric lock is locked / unlocked by moving the dead bolt forward / backward with respect to the strike hole of the strike of the door frame. is doing. In addition, for example, an electric lock disclosed in the following Patent Document 1 is publicly known at a hotel guest room door so that a guest can safely evacuate in an emergency such as a disaster.

  In the electric lock disclosed in Patent Document 1, inner and outer drive cams respectively connected to an indoor lever handle and an outdoor lever handle are rotatably provided in a lock case, and the inner and outer drive cams are independent of each other. Rotate. The lock case includes a combination of a plurality of members, and is provided with a locking / unlocking means for restricting only the rotation of the outer rotation member, and the lock case is electrically connected to the control device, and A solenoid for driving the locking / unlocking means is provided.

  In this electric lock, when the door is closed, the solenoid is actuated immediately based on the lock signal from the control device, whereby the locked state is maintained with respect to the outdoor lever handle. Since the mechanism is always unlocked, when the lever handle on the indoor side is rotated, the retractable member is retracted into the front of the lock case. Even when the retractable member is locked from the outside, the lever handle is rotated from the indoor side, and the retractable member can be freely unlocked.

No. 4-19180

  An electric lock equipped with an anti-panic function as disclosed in Patent Document 1 is a type in which the indoor side and the outdoor side lever handle operate independently without being interlocked in the locked state. The door operation does not require the operation of a dead bolt by a thumb turn, and the door can be opened simply by rotating the lever handle in a predetermined direction.

  However, since this type of electric lock can be unlocked only by operating the lever handle from the indoor side, even if the locking operation is performed when going out (for example, opening a door using a tool). There is a problem that the door handle is illegally unlocked by turning the indoor lever handle in a predetermined direction with a wire or the like through the hole or gap.

  Then, this invention is made | formed in view of the said problem, and it aims at providing the electric lock system which can prevent the unauthorized unlocking | release from the outdoor side of the electric lock carrying an anti-panic function. Is.

In order to achieve the above object, the electric lock system according to claim 1 is provided with an anti-panic function for supporting the indoor lever handle and the outdoor lever handle so that they can be rotated independently of each other, and is acquired at the time of locking / unlocking operation. In the electric lock system that reads the lock / unlock information and determines its legitimacy and controls the lock electrically only when it is successfully authenticated,
A handle operation detection means for outputting an operation detection signal when detecting a rotation operation of the indoor lever handle;
A human body detection unit that detects the proximity of the indoor side lever handle from the indoor side and outputs a human body detection signal;
When the operation detection signal from the handle operation detection means is input and the human body detection signal from the human body detection unit is not input, a notification output indicating that the indoor lever handle is illegally unlocked is output. An electric lock control unit to perform;
It is provided with.

  According to the electric lock system of the present invention, even an electric lock equipped with an anti-panic function can prevent unauthorized unlocking due to a turning operation of the indoor lever handle by an unauthorized act from the outdoor side.

It is a schematic perspective view which shows the apparatus structure of the electric lock system which concerns on this invention. It is a schematic block diagram which shows the structure of the system. It is a flowchart figure which shows the processing operation of the system.

  Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the present invention is not limited by this embodiment, and all other forms, examples, operation techniques, etc. that can be implemented by those skilled in the art based on this form are included in the scope of the present invention. .

  First, the configuration of the electric lock system 1 according to the present invention will be described with reference to FIGS. In addition, although the following description demonstrates the example which employ | adopted the electric lock system 1 of this example for the hotel, it can be used also in facilities, such as other public facilities and apartment houses.

  The system configuration of the electric lock adopted in this system is a lock structure in which the latch bolt also functions as a dead bolt, and is set to the unlocked type when energized or locked, or set to the locked type when energized and locked. In this state, the outdoor lever handle remains fixed, but the indoor lever handle can always be rotated, and the lever handle can be rotated without energizing the solenoid or de-energizing the solenoid. Since it is a well-known configuration equipped with a so-called anti-panic function that can be unlocked only by this, description of the mechanical configuration is omitted, and a system for unauthorized unlocking from the indoor side in the absence, which is a characteristic requirement of the present invention Only the configuration and control processing will be described.

  As shown in FIG. 1 or 2, the electric lock system 1 of this example includes an unlocking / locking card 20 that is a locking / unlocking key that is necessary at the time of locking / unlocking operation, for example, by a card issuing controller arranged in a hotel front or a management room. Is provided, and an electric lock device 10 capable of lock / unlock control by the lock / unlock card 20 is provided.

  As shown in FIG. 1, an outdoor lever handle 10a that is turned when the door is opened from the outdoor side and an indoor lever handle 10b that is turned when the door is opened from the indoor side are provided. Further, the indoor lever handle 10b has a rotation support member (embedded in the door) that is rotatably supported in a predetermined rotation operation direction, and a handle operation detection means 10c (a movement detection device such as a micro switch or a photo sensor). ) Is provided, and when a rotation operation is performed, an operation detection signal indicating that the operation has been performed is output to the electric lock control unit 13 described later.

Here, the locking / unlocking card 20 issued by the card issuing controller as a locking / unlocking key will be described.
The locking / unlocking card 20 used in the electric lock system 1 of the present example is, for example, a locking / unlocking card received at the time of check-in from the front as a card used for locking / unlocking a guest room or when a cleaning person cleans a guest room after check-out It is a card to which authority to enable entry and exit of a predetermined room such as a management card used for locking and unlocking is provided. The locking / unlocking card 20 is equipped with, for example, an IC card that can read and write various data in the memory of a processor chip, an IC chip (RFID tag) including a CPU, ROM, RAM, flash RAM, etc., and can be read / written by non-contact communication. It is composed of a card-like storage medium having a storage area capable of storing / rewriting various kinds of information, such as a possible contactless IC chip built-in card. The locking / unlocking card 20 includes identification information set for each user by the card issuance controller (in this example, since it is adopted by the hotel, the locking / unlocking information necessary for locking / unlocking, the room number where the user stays) The room information to be displayed, the usage period information indicating the period in which the user can use, and the like are stored.

  In this example, three pieces of information such as locking / unlocking information, room information, and usage period information are set as authentication information. However, at least the locking / unlocking information may be stored as authentication information.

  The electric lock device 10 is a device equipped with an anti-panic function, and is embedded in the door of each guest room or in the vicinity of the door. The information reading unit 11, the human body detection unit 12, the electric lock control unit 13, the storage unit 14, and the locking / unlocking mechanism 15 are provided. , A notification unit 16 and a power supply unit 17.

  The information reading unit 11 reads the identification information stored in the locking / unlocking card 20 such as an IC card or a non-contact IC chip built-in card, for example, a card reader having a function of reading various information such as an insertion type and a non-contact type. Consists of. In this example, since the card with a non-contact IC chip is adopted as the locking / unlocking card 20, the information reading unit 11 is configured by a non-contact type card reader / writer.

  Further, the information reading unit 11 performs polling on the locking / unlocking card 20 that is close to the predetermined range at a constant cycle, and when the locking / unlocking card 20 is close to the predetermined range, the information reading / unlocking operation necessary for the locking / unlocking operation is performed. Read lock information. The information reading unit 11 reads the identification information (locking / unlocking information, room information, usage period information) written on the locking / unlocking card 20 and outputs it to the electric lock control unit 13. In addition, as a method of reading the identification information from the locking / unlocking card 20, in addition to the above-mentioned reading by polling, an operation button at the time of locking / unlocking that confirms the intention of the locking / unlocking operation to the guest for the purpose of power saving. Alternatively, the lock / unlock card 20 may be read only when is operated.

  The human body detection unit 12 is a device that can detect the presence or absence of a human body within a predetermined detection target range, such as a pyroelectric infrared sensor module that detects the presence or absence of a human body by detecting infrared rays emitted from the human body, for example. And is provided at a position where a human body can be detected (ceiling, escation, etc.). The human body detection unit 12 detects a human body that has entered a predetermined range, and outputs a human body detection signal indicating this detection to the electric lock control unit 13. It should be noted that the detection range for detecting the human body may be a range that covers a range in which a human body close to the door can be detected by a turning operation of the handle.

  Further, as another configuration example of the human body detection unit 12, a capacitance that detects the presence or absence of a human body by detecting a change in capacitance due to a gripping action of the handle on the back side of the grip portion of the indoor lever handle 10b. A type sensor module can also be mounted. In such a configuration, when the indoor lever handle 10b is rotated in the unlocking direction, it is detected whether the lever handle is grasped by the hand of the human body (user) and the grasping of the lever handle is confirmed. The detection result may be output to the electric lock control unit 13 as a human body detection signal. Moreover, the authentication precision of a human body can further be improved by using both the said structures together.

  The electric lock control unit 13 performs drive control of each unit constituting the electric lock device 10. The electric lock control unit 13 compares the locking / unlocking information read from the locking / unlocking card 20 during the locking / unlocking operation with the authentication locking / unlocking information stored in the storage unit 14 to determine the validity of the locking / unlocking information, The validity of the room information and the usage period information is also determined, and only when all the identification information is valid, the drive control signal is output to the locking / unlocking mechanism 15 according to the current lock and door state. .

  Further, when the electric lock control unit 13 inputs an operation detection signal from the handle operation detection means 10c in accordance with the detection of the turning operation of the indoor lever handle 10b, whether or not the human body detection signal from the human body detection unit 12 is input. Is determined. When the input of both the operation detection signal and the human body detection signal is not confirmed, the electric lock control unit 13 determines that the unlocking is performed by the indoor lever handle 10b and outputs a notification signal to the notification unit 16. . Furthermore, the electric lock control unit 13 causes the storage unit 14 to store an unauthorized unlocking operation history (for example, date and time information) as unauthorized unlocking history information. When it is determined that the unlocking operation is an unauthorized unlocking by the indoor lever handle 10b, in addition to the notification output to the notification unit 16, for example, the front where the centralized management device is arranged, an outside security company, etc. It can also be set as the structure which performs the alerting | reporting output which shows presence of a person.

  The storage unit 14 is composed of, for example, a magnetic or optical storage medium or a semiconductor memory such as a ROM or a RAM. The storage unit 14 includes device information of each device constituting the electric lock device 10, various card information of the locking / unlocking card 20 read by the information reading unit 11, and legitimate information that the read locking / unlocking information unlocks and locks. Various data related to locking / unlocking control such as authentication unlocking / unlocking information, status signal (door open / closed state signal / lock unlocking / unlocking state signal, locking / unlocking operation history), etc. I remember it. Further, the storage unit 14 stores unauthorized unlocking history information from the electric lock control unit 13.

  The locking / unlocking mechanism 15 is composed of a driving device such as a motor and a solenoid and a lock, for example, and is driven to lock or unlock the lock by a drive control signal input from the electric lock control unit 13. On the other hand, the lock is unlocked by protruding the dead bolt (when locking) or retracting (when unlocking).

  The notification unit 16 includes an illumination device such as an LED and various acoustic devices such as a speaker and a buzzer. Based on the notification signal from the electric lock control unit, for example, lighting / flashing by the LED, alarm sound output by the buzzer, and synthesis by the speaker. Informing the threat of intruders by outputting audio.

  The power supply unit 17 is supplied with power by using a commercial power supply (AC 100 V) as an external power supply, and supplies drive power to each unit under the control of the electric lock control unit 13. In addition, as a configuration of the power supply unit 17, for example, when the apparatus is used in a stand-alone configuration, various batteries such as a button battery and a dry battery (regardless of a primary battery or a secondary battery) are configured with a power supply unit that can be attached and detached. You may provide in the predetermined location of a door, or the door vicinity.

  Next, the processing operation in the electric lock system 1 described above will be described with reference to FIG. Here, an example of processing operation when an intruder is illegally unlocked when a guest who uses a hotel is absent will be described.

First, when an operation detection signal is input from the indoor lever handle 10b (ST1), the electric lock control unit 13 determines whether a human body detection signal is input from the human body detection unit 12 (ST2).
At this time, when a human body detection signal is input from the human body detection unit 12 (ST2-Yes), it is determined that the unlocking is normal because the lever handle is rotated while a person is present indoors ( ST3), a drive control signal is output to the locking / unlocking mechanism 15 to electrically unlock it (ST4), and the process ends.

  On the other hand, when the human body detection signal from the human body detection unit 12 is not input (ST2-No), the lever handle is rotated even though there is no person in the room, so the intruder It is determined that it is unauthorized unlocking (ST5), a notification signal is output to the notification unit 16 to issue a notification (ST6), and the process is terminated.

  As described above, in the electric lock system 1 described above, whether or not a human body detection signal is input to determine whether or not a human body has been detected by the human body detection unit 12 when the indoor lever handle 10b is rotated is determined. Determine. When a human body detection signal is input from the human body detection unit 12 during the turning operation of the indoor lever handle 10b, the unlocking process is performed by determining that the unlocking operation is normal from the indoor side. When the human body detection signal from is not input, it is determined that it is an unauthorized unlocking from the outside of the room, and a notification is issued from the notification unit 16 to threaten the intruder.

  Thereby, even if it is an electric lock carrying an anti-panic function, the unauthorized unlocking by the unauthorized act from the outdoor side can be prevented.

  In the above-described embodiment, the card-like storage medium having a storage area capable of storing / rewriting various kinds of information such as a non-contact IC chip built-in key has been described as an example in the form of the locking / unlocking key 20. The medium is not particularly limited as long as it is a medium capable of storing and transmitting / receiving preset locking / unlocking information such as a mobile phone. Accordingly, when a remote control key is used as the locking / unlocking key 20, for example, a receiver that receives a transmission signal from the remote control key is adopted as a configuration of the information reading unit 11, and the medium used as the locking / unlocking key 20 is used. Accordingly, the information reading unit 11 is changed to the information reading unit 11 having a configuration capable of reading various information from the locking / unlocking key 20. Further, the authentication method of the locking / unlocking information is not limited to the locking / unlocking operation by the locking / unlocking key 20, but a method of performing locking / unlocking operation by inputting operation of a numeric keypad with a preset password as locking / unlocking information, A method of performing a locking / unlocking operation by a predetermined operation of the information acquisition unit 11 using biological information such as an iris as locking / unlocking information is also possible.

  When the system configuration is such that the unlocking / unlocking history and the unauthorized unlocking history are written to the locking / unlocking key 20, the reader / writer configuration in which not only the reading function but also the writing function is added to the information reading unit 11. But you can.

  Furthermore, in this embodiment, the unlocking operation is performed depending on whether or not the human body detection signal from the human body detection unit 12 is input when the operation detection signal from the handle operation detection means 10c provided in the indoor lever handle 10b is input. However, the present invention is not limited to this. For example, a mechanism for detecting the advance / retreat of the latch bolt is provided in the lock, and the advance / retreat of the latch bolt accompanying the turning operation of the lever handle is performed. It can also be configured to determine whether or not it is unauthorized unlocking depending on whether or not an advance / retreat detection signal is input when detected.

DESCRIPTION OF SYMBOLS 1 ... Electric lock system 10 ... Electric lock apparatus 11 ... Information reading part 12 ... Human body detection part 13 ... Electric lock control part 14 ... Memory | storage part 15 ... Locking / unlocking mechanism 16 ... Notification | reporting part 17 ... Power supply part 20 ... Locking / unlocking card (unlocking) Lock key)

Claims (1)

When equipped with an anti-panic function that supports the indoor lever handle and the outdoor lever handle so that they can rotate independently of each other. In the electric lock system that only controls the lock
A handle operation detection means for outputting an operation detection signal when detecting a rotation operation of the indoor lever handle;
A human body detection unit that detects the proximity of the indoor side lever handle from the indoor side and outputs a human body detection signal;
When the operation detection signal from the handle operation detection means is input and the human body detection signal from the human body detection unit is not input, a notification output indicating that the indoor lever handle is illegally unlocked is output. An electric lock control unit to perform;
An electric lock system comprising:

Images