JP2002115429A - Locking and unlocking state monitoring device of locking device for building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the locking and unlocking state monitoring device of a locking device for a building, capable of improving crime prevention. SOLUTION: A sensor device 2 is provided with first and second switches 12, 13, and the locking and unlocking signal of a crescent lock (not shown) is output, on the basis of on and off states of the first lead switch 12. In addition, the sensor device 2 outputs an alarm signal, when both the lead switches 12, 13 are turned on. A monitoring device 3 gives an alarm from an alarm device 30, when the locking and unlocking signal and the alarm signal are received in warning mode.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for detecting a locked / unlocked state of a locking device provided on a door or a window of a building and monitoring the locked / unlocked state.

[0002]

2. Description of the Related Art Conventionally, as disclosed in, for example, JP-A-9-158560 and JP-A-9-184332, the locking / unlocking state of a crescent lock provided in a window of a house or the like is detected and the locking / unlocking is detected. Locking / unlocking state monitoring devices that monitor the state have been proposed.

This type of locking / unlocking state monitoring device includes a sensor device arranged near the crescent lock and a monitor device monitoring the locking / unlocking state of the crescent lock based on an output signal from the sensor device. It is configured.

A magnet is provided in the operation lever of the crescent lock, and one reed switch is provided in a portion of the sensor device facing the position of the magnet in the locked state of the crescent lock. For this reason, the reed switch is turned on when the crescent lock is in the locked state. The sensor device outputs the operation state of the reed switch as a radio signal.

[0005] The monitor device is provided with a display unit for displaying the locked / unlocked state of the crescent lock based on a radio signal from the sensor device. A plurality of such display units are provided, each of which displays the locked / unlocked state of the plurality of crescent locks. For this reason, the locking / unlocking state of each crescent lock can be confirmed only by looking at the monitor device. Therefore, the locked / unlocked state of the crescent lock can be easily confirmed.

Further, a monitoring mode and a warning mode are set in the monitor device. In the monitoring mode, the monitor device displays the locked / unlocked state of the crescent lock. In the alert mode, the monitor device issues an alarm when the operation state of the reed switch of the sensor device changes. That is, the monitor device issues an alarm when the crescent lock is unlocked or unlocked in the alert mode. For this reason, crime prevention can be improved by setting the monitor device to the alert mode at night or when going out.

[0007]

However, in such a conventional locking / unlocking state monitoring device, when the crescent lock is unlocked in a state where the magnet is brought close to the reed switch of the sensor device, the reed switch remains ON. . That is, since the sensor device does not signal that the crescent lock has been unlocked, the monitor device determines that the crescent lock is still locked. Therefore, when such an unauthorized unlocking operation is performed, the unauthorized operation cannot be detected, and the monitor device cannot issue an alarm even in the alert mode. Therefore, there is a problem that the security is reduced.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a locking / unlocking state monitoring device for a building locking device capable of improving security.

[0009]

In order to solve the above-mentioned problems, according to the first aspect of the present invention, a door and a window for a building are provided in the vicinity of a locking device for detecting a locked / unlocked state of the locking device. A locking and unlocking state monitoring device for a building locking device, comprising: a sensor device that performs communication with the sensor device, and a monitoring device that monitors the locking and unlocking state of the locking device detected by the sensor device. The locking device is
A movable part whose position changes between a locked state and an unlocked state, and a detected part comprising a magnet provided in the movable part, wherein the sensor device is configured to detect the presence or absence of the detected part, and the locking device Locking and unlocking detection means for detecting the locking and unlocking state of
A magnetic sensor comprising at least one abnormality detection means provided in the vicinity of the lock / unlock detection means, wherein the monitor device detects that the at least one of the lock / unlock detection means and the abnormality detection means simultaneously has a detection signal. The gist of the present invention is to provide an alarming means for starting the operation on condition that the flag is output.

According to a second aspect of the present invention, there is provided the locking / unlocking state monitoring device for a building locking apparatus according to the first aspect, further comprising one abnormality detecting means, wherein the locking / unlocking detecting means, the abnormality detecting means, The gist is that it is provided at a position symmetrical with respect to the center line of the sensor device.

According to a third aspect of the present invention, in the locking / unlocking state monitoring device for a building locking device according to the first or second aspect, the locking device includes the magnet in a locking lever as the movable portion. Is a crescent tablet provided,
The lock / unlock detection unit and the abnormality detection unit each include a reed switch, and the lock / unlock detection unit is turned on when the locking device is in a locked state, and is turned on when the locking device is in an unlocked state. The gist is that the abnormality detecting means is arranged to be turned off when the locking device is in a locked state.

The "action" of the present invention will be described below. According to the first to third aspects of the present invention, when the unlocking / unlocking detecting means and at least one of the abnormality detecting means simultaneously output the detection signals, the monitor device issues an alarm. Since the abnormality detecting means is provided near the locking / unlocking detecting means, for example, when another magnet is brought close to the locking / unlocking detecting means, the abnormality detecting means also detects the proximity of the magnet. Therefore, when the unlocking device is unlocked in a state where the magnet is close to the unlocking / unlocking detecting means and an unauthorized unlocking operation is performed by the magnet to prevent the unlocking / unlocking detecting means from detecting the unlocked state, the monitor device is used. Will issue an alert. Therefore,
The security against unauthorized unlocking operation is improved.

According to the second aspect of the present invention, by switching the functions of the locking / unlocking detecting means and the abnormality detecting means, it is possible to reverse the mounting direction of the sensor device. Specifically, for example, when the locking device is embodied as a crescent lock that locks and unlocks at a position where the sliding window is closed, the crescent lock and the sensor device are disposed on the side of the inner shroud of the window. Then, the mounting direction of the crescent lock and the sensor device is reversed depending on whether the inner sash or the outer sash is on the left or right of the window. Since the lock / unlock detection means and the abnormality detection means are provided at positions symmetrical with respect to the center line of the sensor device, by switching the functions of the lock / unlock detection means and the abnormality detection means, regardless of the mounting direction, The same sensor device can be used. Therefore, the versatility of the sensor device is improved.

According to the third aspect of the present invention, when the crescent lock is in the locked state, the locking / unlocking detecting means is turned on, and in this state, the abnormality detecting means is turned off.
For this reason, when another magnet is brought close to the locking / unlocking detecting means, the abnormality detecting means is also turned on, and an alarm is issued from the monitor device.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is embodied in a locking / unlocking state monitoring apparatus for a crescent lock for locking / unlocking a house window will be described in detail with reference to FIGS.

As shown in FIG. 1, the locking / unlocking state monitoring device 1
Includes a sensor device 2 and a monitor device 3 capable of wirelessly communicating with the sensor device 2. The sensor device 2 has a substantially rectangular parallelepiped shape.
It includes a reed switch 12, a second reed switch 13, a microcomputer (microcomputer) 14, a read only memory (ROM) 15, a transmission / reception circuit 16, a battery 17, and a display unit 18. Further, as shown in FIG. 2, the sensor device 2 has a substantially rectangular shape when viewed from the front.

As shown in FIG. 2, the set switch 11
Is a push button switch provided substantially at the center of the sensor device 2. The first reed switch 12 and the second reed switch 13 are provided near the lower end of the sensor device 2. These reed switches 12, 13 are arranged close to each other. In the present embodiment, each of the reed switches 12 and 13 is disposed at a position symmetrical with respect to the center line O of the sensor device 2 shown in FIG.
More specifically, each of the reed switches 12 and 13 is horizontally moved in a manner in which the first reed switch 12 is close to the sliding door 6 of the sliding window 4 described later and the second reed switch 13 is separated from the sliding door 6. They are arranged in a line.

The microcomputer 14 is a CPU unit that performs processing based on a control algorithm stored in the ROM 15. The microcomputer 14 outputs a predetermined signal to the transmission / reception circuit 16 and the display unit 18 based on the operation of the set switch 11 and the detection signals from the reed switches 12 and 13. More specifically, the microcomputer 14 outputs a registration signal to the transmission / reception circuit 16 when the set switch 11 is operated. The microcomputer 14 outputs an unlocking signal or a warning signal to the transmission / reception circuit 16 when a detection signal is input from each of the reed switches 12 and 13.

The transmitting / receiving circuit 16 modulates a registration signal, an unlocking signal or a warning signal input from the microcomputer 14,
The modulated signal is output from the antenna 16a as a transmission signal, and the transmission signal from the monitor device 3 is demodulated and input to the microcomputer 14.

The battery 17 is composed of two dry batteries as shown by broken lines in FIG. 2 and supplies power to the microcomputer 14 and the transmission / reception circuit 16. The display unit 18 is configured by an LED built in substantially the center of the sensor device 2 as shown by a broken line in FIG. This display section 18
Are turned on based on an output signal from the microcomputer 14.

The sensor device 2 configured as described above is disposed on the sliding window 4 as shown in FIG. The sliding window 4 is constituted by an inner sash 5 and an outer sash 6 which can be slidably opened and closed. A crescent lock 7 as a locking device is provided on a side surface (a combination frame) 5a of the inner sash 5. This crescent tablet 7 is shown in FIG.
The lock lever 7a is rotatable in the direction of arrow F about an axis C shown in FIG. 7A, and a hook 7b interlocked with the lock lever 7a. A fitting portion (not shown) is formed in the assembling frame of the outer sash 6, and the window 4 is locked by fitting the hook portion 7 b and the fitting portion. In this embodiment, the hook 7b and the fitting portion are fitted at the position where the locking lever 7a is shown in FIG.

The sensor device 2 is disposed above the crescent lock 7 on the side surface 5a of the inner sash 5. Specifically, when the locking lever 7a is in the locking position above the crescent lock 7, the sensor device 2
The reed switch 12 and the locking lever 7a are arranged at positions facing each other.

A magnet 8 is provided in the locking lever 7a, and when the locking lever 7a is at the locking position, the magnet 8 and the first reed switch 12 come close to each other in a state where they face each other. Therefore, the first reed switch 1
Reference numeral 2 denotes an ON state when the crescent lock 7 is locked, and an OFF state when the crescent lock 7 is unlocked.

In the locked state of the crescent lock 7, the second reed switch 13 is in the OFF state. In other words, the second reed switch 13 is arranged close to the first reed switch 12 so that the second reed switch 13 is not turned on when the crescent lock 7 is locked. More specifically, the second reed switch 13 is disposed so as to be located on the rotation locus of the magnet 8. Therefore, when the locking lever 7a is turned from the locked position to the unlocked position, the second reed switch 13 is instantaneously turned on after the first reed switch 12 is switched from the ON state to the OFF state. When the locking lever 7a is turned from the unlocked position to the locked position, the second reed switch 13 is instantaneously
After the state becomes N, the first reed switch 12 is turned off.
The state is switched to the ON state.

The microcomputer 14 determines that the first reed switch 12 is ON and the second reed switch 13 is OFF.
In the FF state, the lock signal is output to the transmission / reception circuit 16 indicating that the crescent lock 7 is locked. Further, the microcomputer 14 determines that the eleventh reed switch 12
In the F state, and when the second reed switch 13 is in the OFF state, an unlocking signal indicating that the crescent lock 7 is unlocked is output to the transmission / reception circuit 16. The transmission / reception circuit 16 transmits such an unlocking signal to the monitor device 3 as a transmission signal. That is, the sensor device 2 determines whether the first reed switch 12 is in the ON state or the OFF state,
Detects the locked / unlocked state of. Therefore, in the present embodiment, the first reed switch 12 functions as a locking / unlocking detecting unit. In the present embodiment, the microcomputer 14
Outputs an unlocking signal when the first reed switch 12 is switched from the OFF state to the ON state and when the first reed switch 12 is switched from the ON state to the OFF state.

The microcomputer 14 outputs the warning signal to the transmission / reception circuit 16 when both the first reed switch 12 and the second reed switch 13 are turned on. The transmission / reception circuit 16 transmits the warning signal to the monitor device 3 as a transmission signal. That is, in the normal state, both the reed switches 12 and 13 do not turn on. Therefore, when both the switches 12 and 13 turn on, the sensor device 2 operates the crescent lock 7 improperly. Warning signal is output. Therefore, in the present embodiment, the second reed switch 13
Functions as abnormality detection means. Note that the transmission signal includes, in addition to the operation states of the reed switches 12 and 13, operation states such as the ID code of the sensor device 2 and the power supply voltage of the sensor device 2.

On the other hand, as shown in FIG.
Are a transmission / reception circuit 21, a microcomputer 22, a ROM 23, a registration switch 24, a warning switch 25, and a reset switch 2.
6, power supply circuit 27, backup battery 28, display unit 29
And an alarm unit 30 as alarm means.

The transmission / reception circuit 21 modulates the signal input from the microcomputer 22 and outputs the modulated signal as a transmission signal from the antenna 21a.
Is demodulated and input to the microcomputer 22.

A registration switch 24, a warning switch 25, and a reset switch 26 are electrically connected to the microcomputer 22. The microcomputer 22 performs a predetermined process based on the control algorithm stored in the ROM 23.
More specifically, the microcomputer 22 includes these switches 24-26.
The operation switches to one of the registration mode, the alert mode, and the monitoring mode, and performs individual processing for each mode. Then, the microcomputer 22 outputs to the transmission / reception circuit 21 a response signal indicating that the mode has been switched to each mode. That is, the monitor device 3 performs answer-back with respect to the sensor device 2.

Power supply circuit 27 and backup battery 28
Supplies power to the transmission / reception circuit 21 and the microcomputer 22. The display unit 29 is configured by a light emitting element such as an LED, and lights up based on an output signal from the microcomputer 22. In the present embodiment, the display unit 29 is configured by a two-color light emitting diode.

The alarm unit 30 is constituted by, for example, a buzzer or a speaker, and operates based on an operation signal from the microcomputer 22. In the monitor device 3 configured as described above, the microcomputer 22 is in the normal monitoring mode, and switches to the registration mode when the registration switch 24 is operated.
When the registration switch 24 is operated again, the mode returns to the monitoring mode. The microcomputer 22 switches to the alert mode when the alert switch 25 is operated, and returns from the alert mode to the monitoring mode when the reset switch 26 is operated.

In the monitoring mode, the microcomputer 22 determines whether the crescent lock 7
Is displayed on the display unit 29. In the present embodiment, the display unit 29 is set so as to light green when locked and light red when unlocked.

In the registration mode, the microcomputer 22 is in a state where the sensor device 2 can be registered. In this registration mode, when the microcomputer 22 detects that the set switch 11 of the sensor device 2 has been operated based on a transmission signal from the sensor device 2, the microcomputer 22 registers the sensor device 2 as a monitoring target.

In the alert mode, the microcomputer 22 outputs an operation signal to the alarm unit 30 when a registration signal or an unlocking signal is input from the sensor device 2. As a result, the alarm unit 30 emits an alarm sound. That is, in the alert mode, the microcomputer 22
Is set to operate the alarm unit 30 when the set switch 11 is operated and when the crescent lock 7 is unlocked.

In each mode, the microcomputer 22
Outputs an operation signal to the alarm unit 30 even when a warning signal from the sensor device 2 is input,
To work. That is, the monitor device 3 operates the alarm unit 30 when the sensor device 2 detects an unauthorized operation.

Therefore, according to the present embodiment, the following effects can be obtained. (1) The sensor device 2 has two reed switches 12, 1
When the switches 12 and 13 are both turned on, an alarm sound is emitted from the monitor device 3 in any of the registration mode, the alert mode, and the monitoring mode. First and second reed switches 12, 13
Are arranged close to each other, for example, when a magnet made of another member is brought close to the vicinity of the first reed switch 12, both reed switches 12, 13 are turned on. Therefore, the crescent lock 7 is unlocked in a state where the magnet is brought close to the vicinity of the first reed switch 12, and an unauthorized unlocking operation is performed such that the ON state of the first reed switch 12 is maintained by the same magnet. In this case, an alarm can be issued from the monitor device 3. Therefore, it is possible to improve security against unauthorized unlocking operations.

(2) The first reed switch 12 and the second reed switch 13 are provided at positions symmetrical with respect to the center line O of the sensor device 2. Therefore, the first
By using the reed switch 12 as the abnormality detecting means and using the second reed switch 13 as the locking / unlocking detecting means, the sensor device can be used with the mounting direction reversed. Specifically, the sliding window 4 is not limited to the one in which the inner sash 5 is located on the right side as shown in FIG. Therefore, when the sensor device 2 is used for both types of windows 4, the mounting direction of the sensor device 2 is reversed. However, by making the first reed switch 12 function as abnormality detection means and making the second reed switch 13 function as locking / unlocking detection means, the same sensor device 2 is used regardless of the type of the window 4. be able to. Therefore, the versatility of the sensor device 2 can be improved.

(3) The locking / unlocking detecting means and the abnormality detecting means are constituted by reed switches 12 and 13 having the same function. For this reason, when a magnet is brought close to the sensor device 2 to perform an unauthorized unlocking operation, each reed switch 1
2 and 13 are reliably turned on. Therefore, an unauthorized unlocking operation can be reliably detected.

(4) First and second reed switches 12,
Reference numeral 13 is arranged on the rotation trajectory of the magnet 8 provided on the locking lever 7a of the crescent lock 7. When the crescent lock 7 is unlocked, the second reed switch 13 is instantly turned on. For this reason, by unauthorized unlocking operation,
Even when the magnet is brought close so that only the first reed switch 12 is turned on, when the crescent lock 7 is unlocked, both the first and second reed switches 12 and 13 are turned on.
State. Therefore, even during such an unauthorized unlocking operation, the alarm unit 30 can be reliably operated, and the security can be more reliably improved.

The embodiment of the present invention may be modified as follows. The unlocking / unlocking detecting means and the abnormality detecting means comprise the first and the second
Not only the reed switches 12 and 13 but also other magnetic sensors such as a magneto-resistive element may be used. In addition, not limited to the magnetic sensor, for example, a proximity sensor such as an infrared sensor may be used.

In the above embodiment, the first and second reed switches 12 and 13 are disposed so as to be symmetric with respect to the center line O of the sensor device 2. However, the reed switches 12 and 13 are not limited to such symmetrical arrangement positions, and may be arranged in any manner as long as they are arranged horizontally. Further, the respective reed switches 12, 13 may be arranged in a state of being arranged vertically.

In the above embodiment, one reed switch 13 is used as the abnormality detecting means. However, a plurality of reed switches may be used as the abnormality detecting means. That is, three or more reed switches may be provided in the sensor device 2, one of which may function as lock / unlock detection means, and the other reed switch may function as abnormality detection means.

In the above embodiment, the locked / unlocked state of the crescent lock 7 is detected only by the operation state of the first reed switch 12. However, when the crescent lock 7 is locked or unlocked, the second reed switch 13 is also instantaneously turned on. Therefore, the locked / unlocked state of the crescent lock 7 may be detected based on changes in the reed switches 12 and 13. Good. That is, when the second reed switch 13 is instantaneously turned on after the first reed switch 12 is turned off, the sensor device 2 outputs an unlocking signal indicating unlocking. Then, when the first reed switch 12 is turned on after the second reed switch 13 is momentarily turned on, the locking / unlocking signal indicating locking is output from the sensor device 2.

Next, in addition to the technical ideas described in the claims, the technical ideas grasped by the above-described embodiment will be listed below. (1) In the locking / unlocking state monitoring device for a building locking device according to any one of claims 1 to 3, the locking / unlocking detection means and the abnormality detection means are arranged on a rotation locus of the magnet. is being done.

(2) In the locking / unlocking state monitoring device for a building locking device according to the technical concept (1), the abnormality detecting means includes a detection signal from the locking / unlocking detecting means when the locking device is unlocked. Temporarily outputs a detection signal of the detected portion after the change, and when the locking device is locked, the detection signal of the detected portion is detected before a change occurs in the detection signal from the lock / unlock detection unit. Output temporarily.

(3) In the locking / unlocking state monitoring device for a building locking device according to any one of claims 1 to 3, and technical ideas (1) and (2), the sensor device includes the locking / unlocking device. When the detection signal from the abnormality detecting means changes after the detection signal from the detecting means changes, a signal indicating unlocking is output, and the detection signal from the abnormality detecting means does not change. Outputting a signal indicating that locking has occurred when the detection signal from the locking / unlocking detecting means changes after the locking.

(4) A sensor device provided near the locking device for the building door and window for detecting the locked / unlocked state of the locking device, and the sensor device communicates with the sensor device and detects the locked / unlocked state. In a locking / unlocking state monitoring device for a building locking device provided with a monitoring device for monitoring the locking / unlocking state of the locking device, a movable part whose position changes between the locked state and the unlocked state of the locking device is a detected part. Wherein the sensor device has an unlocking / unlocking detecting means for detecting the locked / unlocked state of the locking device based on the presence or absence of detection of the detected portion, and has the same function as the locking / unlocking detecting means. At least one abnormality detecting means provided in the vicinity, and the monitor device has a condition that at least one of the unlocking / unlocking detecting means and the abnormality detecting means simultaneously outputs a detection signal. As a matter of fact, it shall have an alarm means to start operation.

(5) In a sensor device which is provided near a locking device for a door and a window for a building and detects a locked / unlocked state of the locking device, the sensor device may detect whether or not a detected portion of the locking device is detected. A plurality of magnetic sensors each including a lock / unlock detection unit configured to detect a locked / unlocked state of the locking device, and at least one abnormality detection unit provided near the lock / unlock detection unit. Outputting a warning signal on condition that at least one of the abnormality detecting means is simultaneously outputting a detection signal.

[0049]

As described in detail above, according to the first to third aspects of the present invention, security can be improved.

According to the second aspect of the invention, the versatility of the sensor device can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of an embodiment in which the present invention is embodied in a locking / unlocking state monitoring device for a crescent lock for locking / unlocking a house window.

FIG. 2A is a front view of a sensor device used in the embodiment, and FIG. 2B is a side view of the sensor device.

FIG. 3 is an exemplary perspective view showing an arrangement state of the sensor device used in the embodiment;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Locking / unlocking state monitoring device, 2 ... Sensor device, 3 ... Monitor device, 4 ... Sliding window, 5 ... Inner shoji, 6 ... Outer shoji, 7
... Crescent lock as a locking device, 7a ... Locking lever,
Reference numeral 8: magnet, 12: first reed switch as locking / unlocking detecting means, 13: second reed switch as abnormality detecting means, 14, 22: microcomputer (microcomputer),
Reference numeral 30 denotes an alarm section as alarm means.

Claims (3)

[Claims] 1. A sensor device provided near a locking device for a door and a window for a building, the sensor device detecting a locked / unlocked state of the locking device, and the sensor device communicates with the sensor device and detected by the sensor device. In a locking / unlocking state monitoring device for a building locking device provided with a monitoring device for monitoring a locking / unlocking state of the locking device, the locking device comprises: a movable part whose position changes between a locked state and an unlocked state; A detection unit comprising a magnet provided in the unit, wherein the sensor device detects locking / unlocking of the locking device based on whether the detection unit detects the locking / unlocking state, and the locking / unlocking detection unit. And a magnetic sensor comprising at least one abnormality detection means provided near at least one of the first and second abnormality detection means, wherein the monitor device detects that the lock / unlock detection means and at least one of the abnormality detection means simultaneously have a detection signal. A locking / unlocking state monitoring device for a building locking device, comprising: an alarm unit that starts operating on condition that a signal is output. 2. The sensor device includes one abnormality detection unit, and the unlocking / unlocking detection unit and the abnormality detection unit are provided at positions symmetric with respect to a center line of the sensor device. The locking / unlocking state monitoring device for a building locking device according to claim 1, wherein: 3. The locking device is a crescent lock in which the magnet is disposed in a locking lever as the movable portion, and the lock detection unit and the abnormality detection unit each include a reed switch. The locking / unlocking detecting means is arranged so as to be turned on when the locking device is in the locked state, and to be turned off when the locking device is in the unlocked state. The locking / unlocking state monitoring device for a building locking apparatus according to claim 1, wherein the locking / unlocking state monitoring apparatus is arranged so as to be in an OFF state when in a locked state.