JP4092998B2 - Device for detecting abnormal state of door lock - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a technique for notifying an abnormality when a dead bolt is cut in a locked state, an abnormality when a foreign object is packed by mischief in a dead bolt receiving portion into which a dead bolt is inserted, and the like.
[0002]
[Prior art]
Unauthorized entry may occur by cutting the dead bolt 1a and breaking it while the door 3 is locked. As countermeasures against this, at present, only a measure of providing a door stop 30 for concealing the exposure of the dead bolt 1a at the time of locking on the door 3 as shown in FIG. Such a technique of providing the door 3 with the door stop 30 for concealing the exposure of the dead bolt 1a at the time of locking is a well-known technique that has been generally performed.
[0003]
In addition, a door alarm device that detects a vibration generated when a tablet is broken and generates an alarm is also known. (For example, see Patent Document 1)
An electric lock that recognizes the locking / unlocking of the electric lock on the dead bolt receiving portion (strike) side into which the dead bolt is inserted is also conventionally known. (For example, see Patent Document 2)
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 2002-190069
[Patent Document 2]
Japanese Patent Laid-Open No. 8-151832 [0006]
[Problems to be solved by the invention]
In the technique generally performed conventionally that the door 3 is provided with the door stop 30 described above, the door stop protrudes from the tip of the door tip of the door 3, so that the appearance as the door is deteriorated. was there.
[0007]
Further, in the conventional example shown in Patent Document 1 described above, in a door alarm device that detects a vibration that occurs when a tablet is broken and generates an alarm, the vibration detection is weak against disturbance and an alarm is generated due to a malfunction. There is a problem in terms of operation reliability, such as when the train is emitted (for example, when the train passes, it malfunctions due to vibration of the train).
[0008]
Further, in the conventional example shown in Patent Document 2 described above, when a foreign object is packed on the receiving part side (mostly presumed to be mischief), the foreign object packed in the dead bolt receiving part in the electric lock It is recognized that the dead bolt is inserted into the dead bolt receiving portion and locked, and the electric lock is considered to be locked. For this reason, even if you try to lock the electric lock, the dead bolt receiving part is physically clogged with foreign matter, so not only the dead bolt does not enter (mechanical locking is impossible), but also with a general unlocking detection function In general, the electric lock is not electrically locked to a lock that is considered to be locked. This is a dangerous situation in terms of crime prevention because the lock is erroneously recognized as being locked although it is not substantially locked.
[0009]
The present invention has been made in view of the above points, and the dead bolt receiving part is clogged based on the detection of the unlocked state by the locking / unlocking state detection part and the detection of the door state change by the door state detection part. It is an object to provide an abnormal state detection device for a door lock that can reliably detect an abnormal state of the lock, etc., and notify the abnormality, and that does not malfunction due to a disturbance or the like and that does not require door contact. It is what.
[0010]
[Means for Solving the Problems]
In order to solve the above-described problem, the door lock abnormal state detection device according to the present invention includes a lock / unlock state detection unit 2 that detects a lock / unlock state of the lock 1 including a dead bolt 1a and a dead bolt receiving portion 1b. And a door state detection unit 4 that detects the open / closed state of the door 3, the lock / unlock state detection unit 2 is provided in the dead bolt receiving unit 1 b, and the lock state is detected by the lock / unlock state detection unit 2. In addition, when the door state detection unit 4 detects that the door 3 is changed from the open state to the closed state, a control unit 6 is provided that determines that the door 3 is in an abnormal state and controls the notification unit 5 to notify the abnormality. It is characterized by this. By adopting such a configuration, when the foreign matter 25 is packed in the dead bolt receiving portion 1b that receives the dead bolt 1a of the lock 1 by mischief in the open state, the dead bolt 1a actually enters the dead bolt receiving portion 1b. In spite of this, the locked state is recognized by the locked / unlocked state detection unit 2 provided in the dead bolt receiving portion 1b . In this state, the door 3 is closed from open to closed, and the door state detecting unit 4 recognizes the closed state. However, in such a case, it is determined that the dead bolt receiving portion 1b is filled with the foreign material 25 due to mischief or the like. The crime prevention effect can be enhanced by reliably detecting and notifying by the notification means 5.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.
[0012]
The door 3 is an entrance door, a gate door, a doorway of a building, a door of each room in the building, or the like.
[0013]
In the example shown in FIGS. 1 and 2, the door 3 is composed of a main door 3a and a child door 3b. In the embodiment of FIG. 1, an example using an electric lock device as the lock 1 is shown. The electric lock device includes an electric lock block 9 and a controller 10.
[0014]
The electric lock block 9 is provided with an electric lock driving portion 1c provided with a dead bolt 1a or the like on the main door 3a side, and a door state for detecting the open / closed state of the door 3 (main door 3a) on the main door 3a side. A detection unit 4 is provided. On the other hand, the child door 3b is provided with a dead bolt receiving portion 1b into which the dead bolt 1a is inserted at the time of locking, and a locking / unlocking state detecting portion 2 for detecting the locking / unlocking state of the lock 1.
[0015]
The door state detection unit 4 that detects the open / close state of the door 3 uses, for example, a magnet switch, and the magnet switch operates by opening / closing the door 3 to detect the open state and the closed state of the door 3. ing.
[0016]
The locking / unlocking state detection unit 2 may be provided on the dead bolt receiving portion 1b side as shown in FIGS. 1 and 3, or may be provided on the side where the dead bolt 1a is provided as shown in FIG. In the case where the locking / unlocking state detection unit 2 is provided on the dead bolt receiving portion 1b side, detection is performed by pushing the dead bolt 1a when the dead bolt 1a is inserted (the dead bolt 1a is connected to the shaft urged outward). The locked state is detected by pushing and operating the micro switch 26 with the shaft, and when the dead bolt 1a is not inserted, the unlocked state is detected by not operating the micro switch 26). It has become. Moreover, in what provides the unlocking | locking state detection part 2 in the side which takes out the dead bolt 1a, the dead bolt 1a detects a locking state and an unlocking state by operating a micro switch, respectively.
[0017]
The controller 10 is provided on the main door 3a, and includes a state storage unit 11, a control unit 6 composed of a CPU, a password code storage unit 12, a key code reading unit 13, a notification means 5 such as a display / alarm, and a communication unit 14. is there. The controller 10 is further provided with a canceling means 7 for canceling the notification of the abnormal state by the notification means 5.
[0018]
The control unit 6 is provided with a drive control unit 16, a state determination unit 17, an acceptability determination unit 8, and a timer 15.
[0019]
When the key code reading unit 13 reads and authenticates data such as the card key 19 and the like, the drive control unit 16 outputs a signal for controlling the motor and solenoid of the electric lock drive unit 1c to control the operation of putting in and out the dead bolt 1a. Is supposed to do.
[0020]
In addition, the unlocking / unlocking state detection signal by the locking / unlocking state detection unit 2, the door opening / closing by the door state detection unit 4, and the door state detection signal for closing the door are input to the state determination unit 17 via the state storage unit 11. The state information from the locking / unlocking state detection unit 2 and the door state detection unit 4 is stored, and the state determination unit 17 refers to the data from the state storage unit 11 when necessary, and the current state and past state of the electric lock. The state is determined by comparing the two, and when it is determined that the current state is abnormal, the notifying means 5 notifies that it is abnormal. That is, the state determination unit 17 monitors the occurrence of an abnormal state according to the flowchart of the embodiment of the present invention as shown in FIG. 7 or the flowchart of the reference example shown in FIG. The notification means 5 performs notification. In addition, information on the current state of the electric lock in the state determination unit 17 is transmitted from the communication unit 14 to the indoor controller 18 of the home automation system. A control signal from the indoor controller 18 is received by the communication unit 14, and the control unit 6 can control the electric lock.
[0021]
The acceptability determining unit 8 counts a fixed time (for example, about 10 seconds to 1 minute) set from the start of notification of the abnormal state by the notification unit 5 by the timer 15 and cancels the canceling unit 7 until the set fixed time elapses. Is controlled so as not to accept the input of the cancel signal by the canceling means 7 even if it is operated, and the notification canceling by the notifying means 5 that operates the canceling means 7 after a certain time has elapsed since the start of the notification of the abnormal state is accepted and notified. First, based on the flowchart of the reference example shown in FIG. 5, monitoring of occurrence of an abnormal state in the state determination unit 17 and notification when it is determined that the state is abnormal are performed. The notification operation by means 5 will be described. In this reference example, the locking / unlocking state detection unit 2 detects a change in the locking / unlocking state of the lock 1, and the door state detection unit 4 detects a change in the open / closed state of the door 3. When the door state detecting unit 4 detects that the door 3 has been opened from the closed state while being detected by the state detecting unit 2, an abnormal state (for example, a broken state in which the dead bolt 1a is cut) Thus, the notification means 5 notifies the abnormality. That is, in the locked state in which the dead bolt 1a is inserted into the dead bolt receiving portion 1b as shown in FIG. 3 (a) and FIG. 4 (a), the dead bolt 1a is cut as indicated by an imaginary line (in this state, unlocked / unlocked). After the state detection unit 2 recognizes that it is locked), the door 3 is opened as shown in FIGS. 3B and 4B, and the door state detection unit 4 opens the door 3 from the closed state. When it is detected that the state has changed, the state determination unit 17 determines that the abnormal state is broken by cutting, and the notification unit 5 is controlled to notify the abnormality by a warning sound or display. .
[0022]
Specifically, in FIG. 5, when there is no unlocking operation in the “door closed / locked state”, the door 3 state changes from closed to open, and the locked state remains locked (that is, the locked state remains closed). ), The state determining unit 17 determines that the dead bolt 1a is in a broken state (disconnected state detection), and the notifying unit 5 notifies the unlocked state.
[0023]
On the other hand, when the unlocking operation is performed in the “door closed / locked state”, the electric lock driving unit 1c is driven to unlock, and when the door 3 is opened within a predetermined time after unlocking, the “door open / locked” However, if the door 3 is not opened within a certain time after unlocking, the electric lock driving unit 1c is unlocked and returns to the “door closed / locked state”.
[0024]
Further, when the door 3 is not opened from the closed state when there is no unlocking operation in the “door closed / locked state”, that is, when the door 3 remains closed, the “door closed / locked state” is set. Return.
[0025]
Furthermore, when the door 3 is changed from closed to open when there is no unlocking operation in the “door closed / locked state”, it is detected whether the locked state remains closed, and the locked state does not remain closed. When the lock is opened (that is, when the lock is opened), the indoor controller 18 is notified to inform that there is a possibility that the locked / unlocked state detection unit 2 is abnormal.
[0026]
Here, as described above, the controller 10 is provided with the canceling unit 7 for canceling the notification of the abnormal state by the notification unit 5, and the cancellation unit 7 can cancel the notification of the abnormal state by the notification unit 5. However, the acceptance / rejection means 8 that does not accept the input of the cancellation signal by the cancellation means 7 even if the cancellation means 7 is operated for a certain time (for example, about 10 to 1 minute, preferably about 30 seconds) from the start of the notification. It is provided. Therefore, no matter what operation is performed for a certain time from the start of notification, the notification of the abnormal state by the notification means 5 (in this case, the notification of the broken state) is performed without cancellation, and after a certain time has elapsed, By operating the canceling means 7, the notification by the notification means 5 can be canceled and turned off. Thereby, crime prevention can be improved.
[0027]
Next, an embodiment of the present invention will be described with reference to a flowchart shown in FIG. 7 regarding monitoring of occurrence of an abnormal state in the state determination unit 17 and operation of notification by the notification means 5 when it is determined that the state is abnormal.
[0028]
In the present embodiment, the unlocked / unlocked state detecting unit 2 is provided on the dead bolt receiving unit 1b side. Thus, in the case where the lock / unlock state detector 2 detects a change in the lock / unlock state of the lock 1 and the door state detector 4 detects a change in the open / closed state of the door 3, the lock / unlock state detector 2 detects the lock state. And when the door state detection unit 4 detects that the door 3 has been changed from the open state to the closed state, the foreign matter 25 is clogged due to, for example, mischief in the dead bolt receiving portion 1b. In this case, the notification means 5 notifies the abnormality. That is, as shown in FIG. 6A, when the dead bolt receiving portion 1b is filled with the foreign matter 25 when the door 3 is open, the dead bolt 1a is inserted into the dead bolt receiving portion 1b by the locking / unlocking state detecting portion 2 and locked. If the door state detector 4 detects that the state of the door 3 has changed from open to closed as shown in FIG. 6B, the dead state is detected. The state determination unit 17 determines that the bolt receiving unit 1b is clogged with the foreign matter 25, and the notification unit 5 controls the abnormality to be notified by a warning sound or display.
[0029]
That is, as shown in FIG. 7, first, in the “door open / unlocked state”, the unlocked state detecting unit 2 detects the locked state, and the door state detecting unit 4 switches the door 3 from the open state to the closed state. When the change is detected, it is determined that the foreign matter 25 is clogged in the dead bolt receiving portion 1b in the unlocked state (foreign matter detection is performed), and the notification means 5 notifies the detection of the foreign matter. In this case, the foreign object detection information may be transmitted to the indoor controller 18 and the indoor controller 18 may notify the foreign object detection by the notification means 5 provided in the indoor controller 18. Moreover, you may make it alert | report foreign object detection by both the alerting | reporting means 5 provided in the electric lock apparatus, and the alerting | reporting means 5 provided in the indoor side controller 18. FIG. The notification of foreign matter detection by the notification means 5 is performed by sound notification, notification by display, or the like, for example, by voice announcement or display such as “Please check the dead bolt receiving part of the lock”.
[0030]
On the other hand, if the unlocked state detection unit 2 does not detect the locked state in the “door open / unlocked state”, then the door state detecting means 4 determines whether the door 3 state has changed from open to closed. If the door 3 state does not change from open to closed, the process returns to the “door open / unlocked state”. If the door 3 state changes from open to closed, then the door is further opened within a certain time. When the three state changes from closed to open, the state returns to the “door open / unlocked state”, and when the door 3 state does not change from closed to open within a certain time, the state shifts to the “door closed / locked” state.
[0031]
In the “door open / unlocked state”, if the unlocked state detection unit 2 detects the locked state or does not detect the locked state, the notification unit 5 causes the door 3 to stop when the door 3 continues for a certain period of time. Is alerted by the control unit 6.
[0032]
In the present embodiment, when the dead bolt receiving portion 1b is provided with the locking / unlocking state detecting portion 2, and when the dead bolt receiving portion 1b is clogged with foreign matter, the locking / unlocking state detecting portion 2 determines that it is locked. The dead bolt receiving portion 1b is notified that the foreign matter 25 is clogged. However, in the case where the unlocked state detecting portion 2 is provided on the side where the dead bolt 1a is provided, even if the dead bolt receiving portion 1b is clogged with foreign matter. The locked / unlocked state detection unit 2 cannot detect foreign matter. In this case, however, the dead bolt 1a cannot be inserted due to the foreign matter 25 clogged in the dead bolt receiving portion 1b during the operation of locking after the door is closed (that is, the dead bolt 1a cannot be locked). In this case, the notification means 5 can notify that the dead bolt receiving portion 1b is clogged with foreign matter.
[0033]
【The invention's effect】
As described above, in the first aspect of the present invention, the locking / unlocking state detecting unit for detecting the locking / unlocking state of the lock provided with the dead bolt and the dead bolt receiving unit, and the open / closed state of the door are detected. A door state detection unit that provides the above-described locking / unlocking state detection unit in the dead bolt receiving unit, and detects the locking state by the locking / unlocking state detection unit, and the door state detection unit detects that the door is open. A dead bolt receiving part that receives a dead bolt of the lock by mischief in the open state is provided because it is provided with a control unit that controls to notify the abnormality by the notification means when it is detected that the closed state is detected. when packed foreign matter actually recognized as locked state in unlocking state detection unit even though provided the dead bolt receiving portion deadbolt is not in the dead bolt receiving part, open the door in this state Closed and recognized as closed by the door status detection unit, it is recognized as `` door closed / locked '', but in such a case, there is an abnormality due to foreign matter being packed in the dead bolt receiving part etc. It is judged that there is an accident, and by detecting the abnormality due to mischief in this manner and notifying by the notification means, it is possible to prevent a crime-preventing state such as a state where the lock is displayed but not actually locked. It can be avoided and the crime prevention effect can be enhanced.
[Brief description of the drawings]
FIG. 1 is a control block diagram of the present invention.
FIG. 2 is an explanatory view showing an example of the door.
FIG. 3 shows a reference example, and (a) is an explanatory view showing a state in which the dead bolt is cut at the time of locking when the locking / unlocking state detecting unit is on the dead bolt receiving part side; ) Is an explanatory view showing a state in which the door is opened after the dead bolt is cut.
FIG. 4 shows a reference example, and (a) is an explanatory view showing a state in which the dead bolt is cut at the time of locking when the locking / unlocking state detection unit is on the side where the dead bolt is to be output; ) Is an explanatory view showing a state in which the door is opened after the dead bolt is cut.
FIG. 5 is a flowchart of a reference example.
FIG. 6 shows an embodiment of the present invention, wherein (a) is an explanatory view when a foreign object is clogged in the dead bolt receiving portion in the opened / locked state, and (b) is in the opened / locked state. It is explanatory drawing which shows the state which closed the door after the foreign material was blocked in the deadbolt receiving part.
FIG. 7 is a flowchart of the above.
FIG. 8 is an explanatory diagram showing a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Lock 2 Locking / unlocking state detection part 3 Door 4 Door state detection part 5 Notification means 6 Control part 7 Cancellation means 8 Acceptability means

Claims (1)

And unlocking state detection unit for detecting the locking and unlocking states of the lock with a dead bolt and a dead bolt receiving portion, and a door status detection unit for detecting the open or closed state of the door, the lock-unlock state detecting unit Dead It is provided in the bolt receiving part, and when it is detected that the locked state is detected by the locking / unlocking state detection part and the door state detection part detects that the door is changed from the open state to the closed state, it is determined that the abnormal state has occurred and is notified. An apparatus for detecting an abnormal state of a door lock, characterized by comprising a control unit for controlling so as to notify an abnormality by means.

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