JP2004003195A - Locking device and electronic device applied thereto - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a locking device excellent in security without placing an economical or operational burden on users. <P>SOLUTION: The locking device includes: a mechanical operating part 15 which is provided on a subject to be locked, such as a door 1, and locks and unlocks the subject in such a way that it operates for locking and unlocking in response to a mechanical operation body made with a portable operating element such as a key K or a fitted operating element such as a thumbturn; and an electronic operating part 16 which locks and unlocks the subject independently of the mechanical operating part 15 in such a way that it unlocks the subject in response to a predetermined unlock signal related to the recognition of an image of the portable operating element that is the same as or different from the above-mentioned portable operating element. The mechanical operating part of a cylinder lock is preferably utilized. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a locking device that locks and unlocks a locking target such as a door, and an electronic device applied to the locking device.
[0002]
[Prior art]
Conventionally, as a locking device provided at an entrance of a house or office to be locked, locking and unlocking can be performed by inserting a predetermined key corresponding to this into a key hole, such as a cylinder lock. Naru locks are common. This type of lock is mechanically locked.
[0003]
A door of a hotel guest room or the like may be provided with a locking device that locks and unlocks with a magnetic card and a locking device that uses a hologram card. In addition, there are locking devices that are unlocked by fingerprint collation, and locking devices that are unlocked by voiceprint collation.
[0004]
[Problems to be solved by the invention]
However, a mechanically locked lock such as a cylinder lock has a problem that the locked state is easily broken because the internal structure is relatively simple. In particular, in the case of a cylinder lock, in recent years, cases of unlocking in a short time due to picking have frequently occurred, which is not preferable in terms of safety. In response, it is recommended that a plurality of such locks be attached to the same door. However, it is necessary for the user to always carry a plurality of keys. Locking and unlocking operations are bothersome and troublesome. A locking device using a magnetic card or a hologram card is expensive and requires a large burden to be installed in a general house.
[0005]
SUMMARY OF THE INVENTION It is an object of the present invention to provide a locking device which is excellent in safety without putting an economic burden on a user and trouble in use.
[0006]
[Means for Solving the Problems]
(1) The locking device of the present invention is provided on a locking target, and is capable of locking and unlocking the locking target, and is responsive to a mechanical operation by a portable or provided operating body. And a mechanical operation unit that performs an unlocking operation, and is provided on the lock target and can perform locking and unlocking of the lock target separately from the mechanical operation unit, and the portable operation body. An electronic operation unit that performs an unlocking operation of the lock target in response to a predetermined unlocking signal related to image recognition of the same or another portable operation body.
[0007]
The object to be locked includes an office or house door, a factory door, a safe door, and the like, but the present invention is not limited to such a thing. In short, it is locked and unlocked. If it is an object, it includes all of them.
[0008]
According to the locking device of the present invention, if the portable operating body used for locking and unlocking the mechanical operation unit is the operating body related to image recognition, the portable operating body has, for example, one key. In addition, only one lock is required for the doors, etc., which are to be locked. An apparatus can be provided.
[0009]
Note that the locking device recognizes an image of the portable operation body, processes an image recognition unit that outputs an image corresponding to the recognition, and processes data of the image output from the image recognition unit. A control unit that outputs the unlocking signal for unlocking the locking target to the electronic operation unit based on a process. Further, the control unit may output a locking signal to the electronic operation unit based on a locking operation of the locking target by a mechanical operation unit using the operating body.
[0010]
Further, the image recognition section may be provided at a position where the image of the inserted operating tool can be recognized when the operating tool is inserted into an insertion hole provided in the locking target. Further, the image recognition unit may recognize an image of a shape, a pattern, or a combination thereof of the operating tool.
[0011]
In this case, the operating body may be a predetermined key determined corresponding to the locking and unlocking operation of the mechanical operation unit. In this case, the mechanical operation unit may be a cylinder lock locked and unlocked by the key.
[0012]
A registration unit configured to store an image of the one or more operating objects recognized by the image recognition unit as a registered image in an internal storage unit; and a control unit configured to store the image recognized by the image recognition unit in the one to plurality. And a collating unit for collating with the registered image.
[0013]
In this case, the control unit stores the images of the plurality of operating tools recognized by the image recognition unit in the registration unit in association with each other as a registered image, and according to the association, registers the registered image in the image recognition unit. It is preferable that the image is collated with the image of the recognized operating tool, and that if the collation matches the association of the registered image, the collation matches.
[0014]
The locking device of the present invention further includes a detector that detects an operating tool related to the image recognition, and the control unit controls power supply to the image recognition unit based on the detection by the detector. You may do so.
[0015]
In the locking device of the present invention, the control unit may further reduce power consumption by stopping power supply to the image recognition unit on condition that the image recognition process in the image recognition unit ends. It may be.
[0016]
The reference image used as a reference for image comparison may be given to an internal storage unit in advance from an image input device or the like prepared separately. However, a single or a plurality of operating objects recognized by the image recognition unit may be used. It is preferable that a configuration is provided that includes a registration unit that stores the image of (1) in the storage unit as a registration image. With this configuration, the registered image can be easily changed as needed.
[0017]
(2) The locking device of the present invention responds to an operation of inserting and rotating a key into a keyhole on one side of the inside and outside of the door and rotating, or an operation of a locking operation body provided on the one side of the door. A mechanical operating portion for projecting and retracting a latch from an end face of the door, an engaging body which engages with the latch or an interlocking member interlocked with the latch to fix the latch in a protruding state, and An electronic operation unit including an engagement drive unit for displacing the interlocking member in a non-engagement state, and an insertion hole into which a portable operation body is inserted on the one surface side of the door; An image recognition unit that recognizes an image of the shape, pattern, or combination thereof of the inserted operating tool, and an image recognized by the image recognition unit is compared with an image stored in advance as a registered image, and image comparison is performed. With a match Characterized in that it comprises a control unit for outputting a unlock signal disengaging by the engaging member to the electronic operating unit.
[0018]
In the above configuration, if there is a keyhole on one side of the inside and outside of the door (usually the outside side; hereinafter, described on the outside side), the user inserts a key, which is a portable operation body, into this keyhole, Rotating in one direction causes the latch to protrude from the door end face. The engaging body is engaged with the protruding latch or the interlocking member that interlocks with the protruding latch, and fixes the latch in a protruding state. This is in the locked state. In the case of unlocking, an operating tool such as a key is inserted into the insertion hole of the image recognition unit. The image recognition unit fetches an image such as the contour shape of the operating tool, and the control unit compares the image with the registered image. When the collation matches, the engagement of the engagement body is released by the operation of the engagement drive unit. In this state, when a key is inserted into the keyhole and rotated, the latch retracts from the end face of the door and is unlocked.
[0019]
If there is no lock hole on the outer surface side of the door and there is a provided locking operation body such as a thumb turn or a push button, the latch is protruded by operating the operation body. In the case of unlocking, a predetermined operating tool may be inserted into the insertion hole of the image recognition unit, and the provided operating tool may be operated in the unlocking direction.
[0020]
In the above configuration, the keyhole may be a dummy, and any key may be rotatable. The latch may protrude from the end face of the door by the insertion and rotation of the key. When the locking device of the present invention includes a lock, such as a cylinder lock, which can be mechanically locked and unlocked by inserting a predetermined key corresponding to the lock into the keyhole, Locking is doubled by the original mechanical locking and the locking associated with image matching.
[0021]
A general cylinder lock has an inner cylinder into which a key can be inserted and which can be rotated by inserting a predetermined key. This inner cylinder is interlocked with a latch that projects from the end face of the door and retracts.
[0022]
When the locking device of the present invention includes a cylinder lock, a fitting hole is formed on the outer periphery of the inner cylinder of the cylinder lock or a rotating body provided so as to rotate integrally with the inner cylinder. There is a case where the engagement pin as a unit is configured so as to be freely inserted and removed. In this configuration, the structure of the mechanical operation unit of the cylinder lock can be effectively used almost as it is.
[0023]
BEST MODE FOR CARRYING OUT THE INVENTION
[First Embodiment]
The details of the present invention will be described with reference to the drawings. FIGS. 1 to 5 relate to a first embodiment of the present invention, and FIG. 1 shows a door mounting state of a locking device according to the first embodiment. 2 is a perspective view of the door with the locking device of FIG. 1 as viewed from the inside, FIG. 3 is a configuration diagram of the locking device of FIG. 1, and FIGS. 4 and 5 are the locking of FIG. 4 is a flowchart showing the operation of the apparatus. FIG. 4 shows the operation at the time of image registration and locking, and FIG. 5 shows the operation at the time of unlocking.
[0024]
In FIG. 1, reference numeral 1 denotes a door to be locked, and a knob 2 and an insertion hole 3 for a portable operation body K are provided on the outer surface side of the door 1. A lock keyhole 4 is provided on the end surface of the knob 2, and a lock mechanism 5 is provided at the back of the keyhole 4. The lock mechanism 5 and the keyhole 4 utilize a pin-driven cylinder lock structure, as will be described later in detail with reference to FIG. On the end face of the door 1, there are provided a rectangular latch 6 which projects when locked and retracts when unlocked, and a tiltable latch 7 which can move forward and backward.
[0025]
The insertion hole 3 of the operating tool K is open near the knob 2. The insertion hole 3 is a part of the image recognition unit 8 at the back. The image recognition unit 8 recognizes an image of a shape, a pattern, or a combination thereof of the operating tool K inserted into the insertion hole 3. 9 is a control unit provided on the inner surface side of the door 1. Note that an electronic device in which the image recognition unit 8 and the control unit 9 are integrated into one unit may be configured.
[0026]
The operating tool K may be one that can be inserted into the insertion hole 3 and has a characteristic such as a contour shape or a side shape, or a pattern attached to a side face. A predetermined key which can be inserted into the keyhole 4 of the knob 2 and operated to rotate is used as the operating tool K.
[0027]
In FIG. 2, reference numeral 10 denotes a knob on the inner surface side of the door 1, and a thumb turn 11 is provided on an end surface thereof as a locking operation body. This thumb turn 11 is capable of locking and unlocking from the inner surface side of the door 1 by the rotation operation regardless of the locking and unlocking operation by the key from the outer surface side of the door 1 like the thumb turn provided in a general cylinder lock. It is.
[0028]
On the front side of the control unit 9, there is an operation unit 12 also serving as a display unit. The operation unit 12 is provided with various operation buttons 13 such as a power button, a registration button, and a release button, and an indicator light 14 indicating an operation state.
[0029]
Referring to FIG. 3, the internal structure will be described. The lock mechanism 5 following the keyhole 4 is composed of a mechanical operation unit 15 inherently provided in the pin drive type cylinder lock and an electronic operation unit 16 unique to the present invention. Become.
[0030]
The mechanical operation unit 15 includes an inner cylinder 17 into which a key is inserted, and an outer cylinder 18 around the inner cylinder 17. From the outer cylinder 18 to the inner cylinder 17, a plurality of rows (four rows in the figure) of pin rows 19 including tumbler pins 19a, driver pins 19b, and springs 19c are provided.
[0031]
When the predetermined key K corresponding to the key K is not inserted into the inner cylinder 17, the driver pins 19 b of each pin row 19 cross over the boundary between the inner cylinder 17 and the outer cylinder 18. The cylinder 17 is fixed so as not to rotate with respect to the outer cylinder 18. When a predetermined key K is inserted into the inner cylinder 17, the pin rows 19 are aligned as shown in the drawing, and the butt position of the tumbler pin 19 a and the driver pin 19 b in any of the pin rows 19 The boundary between the outer cylinder 18 and the outer cylinder 18 coincides, and the fixing of the inner cylinder 17 to the outer cylinder 18 is released. Note that a detection switch 20 for detecting the rotation of the inner cylinder 17 is provided. The detection switch 20 functions as a detection unit that detects the locking operation of the door 1 by the key K.
[0032]
When the inner cylinder 17 is not fixed to the outer cylinder 18, the inner cylinder 17 can rotate in the forward and reverse directions within a range of about 360 degrees. In conjunction with the rotation of the inner cylinder 17, the rectangular latch 6 protrudes and retracts from the end face of the door 1. The interlocking mechanism between the inner cylinder 17 and the square latch 6 is a mechanism known for a general cylinder lock, and is not particularly illustrated in this specification.
[0033]
The electronic operation unit 16 includes a rotating body 21 provided so as to rotate integrally with the inner cylinder 17, an engaging pin 23 which is fitted in a fitting hole 22 formed on an outer periphery of the rotating body 21 so as to be able to freely enter and exit, A solenoid 24 with a toggle mechanism for moving the mating pin 23 forward and backward with respect to the rotating body 21.
[0034]
The rotating body 21 is an interlocking member that interlocks with the square latch 6. The rotating body 21 is fixed at a predetermined angular position by fitting the engaging pin 23 into the fitting hole 22 of the rotating body 21. When the rotating body 21 is fixed at a predetermined angular position, the rectangular latch 6 is fixed in a protruding or retracted state.
[0035]
The engagement pin 23 is connected to the operating portion of the solenoid 24 via a spring 25 in a state where there is a slight play in the advance / retreat direction. The engagement pin 23 moves forward / backward by driving the solenoid 24 and moves between the forward position and the backward position. Can rest in two positions. Instead of the solenoid 24 with a toggle mechanism, a combination of a solenoid and a toggle mechanism may be used. In addition, any means for driving the engagement pin 23 forward and backward may be used as long as it can electrically drive the engagement pin 23. Reference numeral 26 denotes a drive circuit of the solenoid 24.
[0036]
The thumb turn 11 can operate the mechanical operation unit 15 such as the inner cylinder 17 by its rotation to perform locking and unlocking of the mechanical operation unit 15, and can operate the engagement pin 23 of the electronic operation unit 16 to operate the electronic operation unit 16. Locking and unlocking by the operation unit 16 can be performed. The link mechanism between the thumb turn 11 and the machine operating unit 15 is the same as the link mechanism provided in a general cylinder lock. The thumb turn 11 and the engagement pin 23 may be linked by a cam mechanism or the like.
[0037]
The image recognition unit 8 includes a light emitting body 27 such as an LED, and an imaging device 28 such as a C-MOS image sensor or a CCD. The operation tool K to be image-recognized is inserted into the image recognition section 8 through the insertion hole 3, and the light emitter 27 illuminates the operation tool K inserted in this way, and emits light necessary for image recognition. It is to make it. The operation of the image recognition unit 8 is controlled by a control unit 29 in the control unit 9. Image data on the operating tool K obtained by the image recognition unit 8 is provided to the control unit 29.
[0038]
The control unit 9 includes the operation unit 12 and the control unit 29 described above. The control unit 29 is configured to include the memory 31 with the CPU 30 at the center, and is actually formed of a microcomputer. The control unit 29 transmits and receives signals related to the image of the operating body 3 to and from the image recognition unit 8 as described above, and also takes in a detection signal from the rotation detection switch 20 of the lock mechanism unit 5 and outputs a drive circuit. A signal for locking or unlocking is output from 26 to a solenoid 24 in the electronic operation unit 16 to control the operation of the solenoid 24.
[0039]
Next, the operation of the above configuration will be described based on the flowcharts of FIGS. In order for the locking device of the present invention to perform a required operation, first, it is necessary to register an image of the operating tool K. In the case of this image registration, it is determined in step S1 whether or not an instruction for image registration has been made by the operation button 13 of the control unit 9. If the instruction for registration has been made, in step S2, the image recognition unit 8 is registered. In step S3, an image of a predetermined key K corresponding to the mechanical operation unit 15 of the lock mechanism unit 5 is recognized, and the image is stored in the memory 31 of the control unit 29 in step S3. It is stored as a registered image. Thereafter, in step S4, the engagement pin 23 is retracted by the shortening operation of the solenoid 24, the engagement with the rotating body 21 is released, and the locking by the electronic operation unit 16 is released.
[0040]
In the case of locking, a predetermined key K matching the mechanical operation unit 15 may be inserted into the keyhole 4 and rotated in the locking direction. When a predetermined key K is inserted into the keyhole 4, the mechanical operation unit 15 at the back of the keyhole 4 is set so that each pin row 19 has a required height as shown in FIG. The inner cylinder 17 is aligned and the inner cylinder 17 is fixed to the outer cylinder 18. In this case, the rotation of the rotating body 21 is already released on the side of the electronic operation unit 16, so the inner cylinder 17 rotates with the rotation operation of the key K.
[0041]
When the inner cylinder 17 makes one rotation, the pin row 19 of the mechanical operation unit 15 is in the state shown in FIG. 3, and the rectangular latch 6 interlocking with the inner cylinder 17 projects from the end face of the door 1. Here, when the key K is removed, each pin row 19 returns to the original length, and the driver pin 19b of each pin row 19 crosses the boundary between the inner cylinder 17 and the outer cylinder 18. The cylinder 17 is fixed so as not to rotate with respect to the outer cylinder 18.
[0042]
At the time of this locking operation, the control unit 29 monitors in step S5 whether or not the rotation operation with the key K has been performed through the rotation detection switch 20, and when a signal indicating rotation detection is input from the rotation detection switch 20, In step S6, the control unit 29 outputs a signal for locking, drives the drive circuit 26 to extend the solenoid 24 in the electronic operation unit 16, and protrudes the engagement pin 23 toward the rotating body 21. Let it. The engagement pin 23 is fitted into the fitting hole 22 of the rotating body 21 to engage with the rotating body 21. As a result, in the lock mechanism 5, the mechanical operation unit 15 and the electronic operation unit 16 perform double and independent locking.
[0043]
To open the lock, the user inserts a predetermined key K corresponding to the operating tool in which the image is registered, in this embodiment, the machine operating unit 15 into the insertion hole 3 of the image recognition unit 8, and then, The key K may be inserted into the keyhole 4 of the lock mechanism 5 and rotated in the unlocking direction. The control operation of the control unit 29 in that case is as shown in the flowchart of FIG.
[0044]
The control unit 29 performs image recognition of the operating tool K inserted into the image recognition unit 8 in step T1. In step T2, the image of the operating tool K is compared with the registered image, that is, the image of the predetermined key K that matches the machine operation unit 15, and it is determined whether or not the images match. If the key K in which the image is registered is inserted, the images match. If the images match, in step T3, the control unit 29 outputs a signal for unlocking, and drives the solenoid 24 in the electronic operation unit 16 via the drive circuit 26, thereby setting the engagement pin 23. By retracting, the engagement with the rotating body 21 is released. Thereby, the lock of the door 1 to be locked by the electronic operation unit 16 is released. In this state, the door 1 is still locked by the mechanical operation unit 15.
[0045]
In this state, when the predetermined key K is inserted into the key hole 4 of the lock mechanism 5, the pin rows 19 are aligned in the mechanical operation unit 15 so as to have the required heights, respectively. The fixing of the inner cylinder 17 to the outer cylinder 18 is released. Thereafter, when the key K is rotated in the unlocking direction, the square latch 6 is retracted. Thereby, the locking of the door 1 by the mechanical operation unit 15 is released.
[0046]
In step T4, it is determined whether or not the inner cylinder 17 has been rotated by the rotation operation of the key K. If the inner cylinder 17 has not been rotated, the process waits for a certain time in step T5, and the inner cylinder 17 remains unrotated. After a lapse of a predetermined time, in step T6, the engaging pin 23 is advanced to engage the rotating body 21, and the state returns to the state before step T1.
[0047]
When a required power is not supplied to the locking device of the present invention due to a power failure, a voltage drop of the power supply battery, or the like, the control unit 29 determines whether the engagement pin 23 and the rotating body 21 are engaged with each other in response to the voltage drop. At this time, the lock in the electronic operation unit 16 is released. In this state, the locking device of the present invention is used as a device that is locked and unlocked with the key K like a general cylinder lock.
[0048]
[Second embodiment]
6 and 7 relate to a second embodiment of the present invention, FIG. 6 is a configuration diagram of a locking device according to the second embodiment, and FIG. 7 is a flowchart showing an operation of the locking device of FIG. 6 when unlocking. It is.
[0049]
In the locking device of the second embodiment, an insertion detection switch 32 is provided as means for detecting insertion of the operating tool K into the image recognition unit 8. The signal of the insertion detection switch 32 is input to the control unit 29. Since other configurations are the same as those of the locking device of the first embodiment, corresponding portions are denoted by the same reference numerals and description thereof will be omitted.
[0050]
In the above configuration, when unlocking, the user may perform the same operation as described in the first embodiment. The control operation of the control unit in that case is as shown in the flowchart of FIG.
[0051]
Before the unlocking operation is performed, power is not supplied to the image recognition unit 8. In step U1, it is monitored via the insertion detection switch 32 whether or not any operating tool has been inserted into the image recognition unit 8. When an operating tool is inserted into the image recognition unit 8, step U2 is performed. Then, in response to the signal from the insertion detection switch 32 indicating that, the power supply to the image recognition unit 8 is started. The image recognition unit 8 can perform image recognition of the operating tool.
[0052]
In step U3, image recognition of the operating tool is performed. A series of steps from step U3 to step U8 is a series of steps from step T1 to step T6 after image recognition at the time of unlocking in the first embodiment. Is the same.
[0053]
That is, after performing the image recognition in step U3, in step U4, the image of the operating tool is compared with the registered image, and if the images match, in step U5, the engaging pin 23 is retracted to make contact with the rotating body 21. Disengage.
[0054]
In this state, when a predetermined key K corresponding to the key is inserted into the key hole 4 of the lock mechanism 5 and is rotated in the unlocking direction, the rectangular latch 6 is retracted and opened. Locked.
[0055]
In step U6, it is determined whether or not the inner cylinder 17 has been rotated by the rotation operation of the key K. If the inner cylinder 17 has not been rotated, the process waits for a certain period of time in step U7, and the inner cylinder 17 has been kept rotating without being rotated. After a lapse of time, the engaging pin 23 is engaged with the rotating body 21 in step U8, and the state returns to the state before step U1.
[0056]
If power is constantly supplied to the image recognition unit 8, power consumption is large. This is a problem when using a battery as a power source. On the other hand, if power is supplied to the image recognition unit 8 only when the operating tool is inserted into the image recognition unit 8 as in the second embodiment, the power consumption is small. I'm done.
[0057]
In the above-described manner of operation, power is continuously supplied to the image recognition unit 8 while the operating tool is inserted into the image recognition unit 8. Upon completion, the power supply to the image recognition unit 8 may be stopped at that time. Thereby, the power consumption is further reduced.
[0058]
When no operation tool is inserted into the image recognition unit 8, the control unit 29 is set to the sleep mode (low power consumption mode) together with the stop of power supply to the image recognition unit 8. Is also good.
[0059]
[Third embodiment]
FIG. 8 is a flowchart showing an operation at the time of unlocking according to the third embodiment of the present invention. This third embodiment is characterized by its operation. The locking device that performs the characteristic operation may be the locking device according to the first embodiment or the locking device according to the second embodiment. Here, the same locking device as the locking device according to the first embodiment is used. The operation of the locking device having the above configuration will be described.
[0060]
In this embodiment, the images of the plurality of operating tools are ordered and stored in the memory 31 of the control unit 29 as registered images.
[0061]
At the time of unlocking, when an operating tool is first inserted into the image recognizing unit 8, an image of the operating tool is fetched in step V1, and the image is compared with a first registered image in step V2. It is determined whether or not matches. If the images match, the process proceeds to step V3, where the image of the operating tool inserted second is fetched, and in step V4, the image is compared with the second registered image to determine whether the images match. .
[0062]
As described above, the image of the operating tool is compared with the registered image in the order of the registered images, and when the comparison with the registered image matches with the registered image in the order of the registered images, the engaging pin 23 is retracted in step V5. The engagement with the rotating body 21 is released.
[0063]
In this state, when a predetermined key K corresponding to the key is inserted into the keyhole 4 of the lock mechanism 5 and rotated in the unlocking direction, the square latch 6 is retracted and unlocked. Is done.
[0064]
In step V6, it is determined whether or not the inner cylinder 17 has been rotated by the rotation operation of the key K. If the inner cylinder 17 has not been rotated, the process waits for a certain period of time in step V7, and the inner cylinder 17 remains constant without rotating. After a lapse of time, the engaging pin 23 is engaged with the rotating body 21 in step V8, and the state returns to the state before step V1.
[0065]
When performing the above operation, it is necessary to insert a plurality of operating tools in which images are registered into the image recognition unit in the order of the registered images. Otherwise, locking by the electronic operation unit 16 is not possible. Not released. Therefore, it is not easily unlocked and the safety is high.
[0066]
When the images of the plurality of operating tools are stored as the registered images in the memory 31 of the control unit 29, respectively, the images of the plurality of operating tools match the registered images regardless of the registered image numbers and the registration order. Then, the engagement between the engagement pin 23 and the rotating body 21 may be released. If a part of the registered images matches the image of the operating tool, the engagement between the engaging pin 23 and the rotating body 21 may be released.
[0067]
[Fourth embodiment]
FIG. 9 is a perspective view showing a door mounting state of the locking device according to the fourth embodiment of the present invention, as viewed from the door outer surface side.
[0068]
In this embodiment, the knob 2 on the outer surface side of the door 1 is provided with a thumb turn 33 as a locking operation body. This thumb turn 33 is interlocked with the square latch 6. The square latch 6 protrudes from the end surface of the door 1 by the rotation operation of the thumb turn 33 in one direction, and retreats by the rotation operation of the thumb turn 33 in the opposite direction.
[0069]
In this embodiment, although not specifically shown, an electronic operation unit as shown in FIG. 3 is provided on a member interlocking with the square latch 6, for example, a shaft of the thumb turn 33. The operation of the electronic operation unit is controlled by a control unit 29 included in the control unit 9. The configurations of the control unit 9 and the image recognition unit 8 are the same as those of the first embodiment.
[0070]
In the above configuration, the square latch 6 protrudes by rotating the thumb turn 33 in one direction. At the same time, the engaging pin engages with a member interlocking with the square latch 6, for example, the shaft of the thumb turn 33, in the electronic operation unit inside. This is in the locked state.
[0071]
At the time of unlocking, when an operating tool for which an image is registered, for example, a key of a car or the like that is always carried, is inserted, an engaging pin is disengaged by an internal electronic operation unit so that the unlocking can be performed. Become.
[0072]
【The invention's effect】
Since the locking device of the present invention is unlocked by image recognition, the risk of accidental unlocking by an external operation is less than that of a mechanically locked and unlocked lock, and safety is improved. Are better. In particular, if the lock includes a lock that can be locked and unlocked mechanically, such as a cylinder lock, the lock will be double-locked: mechanical lock of this lock and electronic lock that requires image recognition. Increase. Further, since the mechanism originally included in the lock is used, the lock can be manufactured relatively inexpensively and is easily adopted in a general house.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a door mounted state of a locking device according to a first embodiment of the present invention, as viewed from a door outer surface side.
FIG. 2 is a perspective view of the door with the locking device of FIG. 1 as viewed from the inside.
FIG. 3 is a configuration diagram of the locking device of FIG. 1;
4 is a flowchart showing operations of the locking device of FIG. 1 at the time of image registration and at the time of locking.
FIG. 5 is a flowchart showing an operation of the locking device of FIG. 1 at the time of unlocking.
FIG. 6 is a configuration diagram of a locking device according to a second embodiment of the present invention.
7 is a flowchart showing the operation of the locking device of FIG. 6 when unlocking.
FIG. 8 is a flowchart showing an operation at the time of unlocking according to a third embodiment of the present invention.
FIG. 9 is a perspective view showing a door mounted state of a locking device according to a fourth embodiment of the present invention, as viewed from the door outer surface side.
[Explanation of symbols]
1 door (locked)
5 Lock mechanism
6 Square type latch (latch)
8 Image Recognition Unit
15 Machine operation section
16 Electronic operation part
29 Control unit

Claims (20)

A mechanical operation unit that is provided on a locking target and can perform locking and unlocking of the locking target, and performs the locking and unlocking operation in response to mechanical operation by a portable or provided operating body. When,
Image recognition of the same or another portable operation tool that is provided on the lock target and can perform locking and unlocking of the lock target separately from the mechanical operation unit and that is different from the portable operation tool An electronic operation unit that performs an unlocking operation of the lock target in response to a predetermined unlocking signal according to
A locking device comprising: The locking device according to claim 1,
An image recognition unit that recognizes an image of a portable operation tool and outputs an image corresponding to the recognition,
A control unit that processes the data of the image output from the image recognition unit and outputs the unlocking signal for unlocking the lock target to the electronic operation unit based on the processing,
A locking device comprising: The locking device according to claim 2,
The locking device, wherein the control unit outputs the locking signal to the electronic operation unit based on a locking operation of the locking target by the mechanical operation unit using a portable operation body. The locking device according to claim 2 or 3,
The image recognizing unit is provided at a position where the portable operating tool can recognize an image of the inserted operating tool when the portable operating tool is inserted into an insertion hole provided in the lock target. A locking device. The locking device according to any one of claims 2 to 4,
The locking device, wherein the image recognition unit is configured to recognize an image of a shape, a pattern, or a combination thereof of a portable operation body. The locking device according to any one of claims 1 to 5,
The locking device according to claim 1, wherein the portable operation body related to the image recognition is a predetermined key determined in correspondence with an operation of locking and unlocking the mechanical operation unit. The locking device according to claim 6,
The locking device, wherein the mechanical operation unit is a cylinder lock locked and unlocked by the key. The locking device according to any one of claims 1 to 7,
A registration unit configured to store an image of the one or more operating objects recognized by the image recognition unit as a registered image in an internal storage unit; and a control unit configured to store the image recognized by the image recognition unit in the one to plurality. And a collating unit for collating with the registered image. The locking device according to claim 8,
The control unit stores the images of the plurality of operating objects recognized by the image recognition unit in the registration unit in association with each other as a registered image, and recognizes the registered image in the image recognition unit according to the association. A locking device for collating with an image of an operating tool, and when the collation matches the association of the registered image, it is determined that the collation matches. The locking device according to claim 8 or 9,
A locking device for detecting a portable operation tool relating to the image recognition, wherein the control unit controls power supply to the image recognition unit based on detection by the detection object. apparatus. The locking device according to any one of claims 8 to 10, wherein the control unit stops power supply to the image recognition unit on condition that the image recognition process in the image recognition unit is completed. Locking device. The locking device according to any one of claims 1 to 11,
A locking device, wherein the locking target is a door. In response to the operation of inserting and rotating the key into the keyhole on the inside and outside surfaces of the door, or the operation of the locking operation body provided on the one surface side of the door, the latch projects and retracts from the end surface of the door. A machine operation unit to
An engagement body that engages with the latch or an interlocking member that is interlocked with the latch to fix the latch in a protruding state, and an engagement drive that displaces the engagement body into a non-engagement state with respect to the latch or the interlocking member thereof An electronic operation unit including a unit;
An image recognition unit having an insertion hole into which a portable operation body is inserted on the one surface side of the door, and recognizing an image of a shape, a pattern, or a combination thereof of the operation body inserted into the insertion hole;
Control for comparing the image recognized by the image recognition unit with an image stored in advance as a registered image, and outputting an unlocking signal for releasing the engagement by the engagement body to the electronic operation unit when the image matches. Department and
A locking device comprising: The locking device according to claim 13,
A lock that can be mechanically locked and unlocked by inserting a predetermined key corresponding to the lock into the keyhole, wherein the lock has the mechanical operation unit. apparatus. The locking device according to claim 13 or 14,
Among the respective parts of the lock, an inner cylinder into which a key can be inserted and which can be rotated by inserting a predetermined key, or a rotating body provided so as to rotate integrally with the inner cylinder, an interlocking member interlocking with a latch An engagement pin that is removably fitted into a fitting hole formed on the outer periphery of the inner cylinder or the rotating body and engages with the latch or an interlocking member thereof to fix the latch in a protruding state. A locking device characterized by being united. The locking device according to claim 15,
The engagement drive section for displacing the engagement pin with respect to the inner cylinder of the lock or the rotating body is constituted by a solenoid with a toggle mechanism or a combination of a solenoid and a toggle mechanism. Locking device. The locking device according to claim 13,
A locking device, wherein a locking operation body provided on the one surface side of the door for projecting and retracting the latch is a thumb turn. The locking device according to claim 13,
A locking device, wherein a locking operation body provided on the one surface side of the door for projecting and retracting the latch is a push button. An image recognition unit that recognizes an image of a portable operation tool that can be used for locking or unlocking of a locking target, and outputs an image corresponding to the recognition;
A control unit that processes data of the image output from the image recognition unit and outputs an unlock signal for unlocking the lock target based on the processing;
An electronic device for a locking device, wherein the electronic device is incorporated as a unit. The electronic device for a locking device according to claim 19,
A detection unit that detects a mechanical locking operation of the locking target by the portable operation body,
The electronic device for a locking device, wherein the control unit outputs the locking signal in response to detection from the detection unit.

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