Lock / unlock monitoring device

Abstract

To provide a locking / unlocking monitoring device that enables a locking state and an unlocking state of an already installed locking / unlocking device to be easily determined without performing any work on the locking / unlocking device.SOLUTION: A locking / unlocking monitoring device 100 monitors a locking state and an unlocking state of a locking / unlocking device L attached to a door D which is an open / close portion. The locking / unlocking monitoring device 100 is installed at a position separated by a predetermined distance from the door D, of a wall L disposed perpendicular to the door D. The locking / unlocking monitoring device 100 emits from the installed position thereof, predetermined detection light from diagonal front with respect to the locking / unlocking device L, receives reflection light from the locking / unlocking device L, and monitors the locking state and the unlocking state of the locking / unlocking device L. As a result, the locking state and the unlocking state of the already attached locking / unlocking device can be easily monitored and networked without adjusting the already attached locking / unlocking device.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a lock / unlock monitor that monitors the locked / unlocked state of a lock / unlock device, and more particularly to a monitor that uses light. [Background technology]

[0002] A conventional locking / unlocking monitoring device will be described using a locking / unlocking control device 1 shown in Fig. 14. The locking / unlocking control device 1 includes a storage member having a space for storing a thumb turn provided on a door and covering the thumb turn for locking or unlocking the door, a rotating body having a knob portion and connected to the storage member so as to share a rotation axis, and rotating the storage member by pinching and rotating the knob portion, a first gear provided along the edge of the opening of the storage member, a second gear engaged with the first gear and rotating in response to the rotation of the first gear, a third gear sharing a rotation axis with the second gear and rotatable by a predetermined angle relative to the second gear, and a drive unit for rotating the third gear. This provides a locking / unlocking control device that more simply realizes a configuration that does not apply a load to a motor when opening or closing manually (see Patent Document 1 above). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-172794 A Summary of the Invention [Problem to be solved by the invention]

[0004] The above-mentioned conventional locking / unlocking control device 1 has the following points to be improved. The conventional locking / unlocking control device 1 needs to be installed so as to accommodate a thumb turn. This requires a certain amount of space to install the locking / unlocking control device 1, which limits the types of thumb turns that can be installed.

[0005] In addition, since the locking / unlocking control device 1 has a mechanical mechanism for operating the thumb turn, it is large and heavy, which is an area that needs improvement.

[0006] Furthermore, the locking / unlocking control device 1 is limited in the thumb turns that can be attached, and the device itself is large and heavy, so that it is not easy to network locking / unlocking devices that are already installed, which is an area that needs improvement.

[0007] Furthermore, since the lock / unlock control device 1 has an automatic thumb turn operation function, it is not suitable for cases where one wishes to know only the locked / unlocked state, which is an area that needs improvement.

[0008] Therefore, the present invention aims to provide a locking / unlocking monitoring device that can easily determine the locked / unlocked state of a locking / unlocking device and the open / closed state of an opening / closing part without requiring any work to be done on an already installed locking / unlocking device. Effect of the Invention

[0009] The means for solving the problems in the present invention and the effects of the invention are described below.

[0010] The locking / unlocking monitoring device according to the present invention is a locking device that monitors an open / closed state of an opening / closing part, the state of which changes between an open state and a closed state, and locks and unlocks the opening / closing part, and monitors a locking / unlocking state of an operation part that switches between a locked state and an unlocked state by a human operation, the locking / unlocking monitoring device comprising a main housing part having an attachment surface to be attached at a predetermined position, an operation part change range that is a range in which the state of the operation part changes from the unlocked state to the locked state, and the opening / closing part is in a closed state. the open / close detection housing part accommodating an open / close detection part that detects the open state and the closed state of the open / close part by a change in magnetic force, and the lock / unlock detection housing part is disposed at one end of the main housing part, and the open / close detection housing part is disposed at an end of the main housing part different from the end at which the lock / unlock detection housing part is disposed.

[0011] As a result, simply by disposing the lock / unlock monitoring device, it is possible to simultaneously monitor the open / closed state of the opening / closing section and the locked / unlocked state of the lock / unlock device.

[0012] Furthermore, since the state of the opening / closing section can be used to detect the state of the locking / unlocking device, the state of the locking / unlocking device can be detected only when necessary, thereby making it possible to reduce the power consumption of the locking / unlocking monitoring device.

[0013] The lock / unlock monitoring device of the present invention is characterized in that the lock / unlock detection housing unit is capable of adjusting the direction in which the front detection light is projected and the direction in which the reflected light is received, and the open / close detection housing unit is capable of adjusting the direction in which the change in magnetic force is detected.

[0014] This makes it possible to easily arrange the lock / unlock detection unit and the open / close detection unit in appropriate positions.

[0015] The lock / unlock monitoring device of the present invention is characterized in that the lock / unlock detection housing unit is configured to be rotatable around a rotation axis perpendicular to the mounting surface, and the open / close detection housing unit is configured to be rotatable around a rotation axis perpendicular to the mounting surface.

[0016] This allows the lock / unlock detection unit and the open / close detection unit to be easily positioned in appropriate positions simply by rotating them.

[0017] In the lock / unlock monitoring device according to the present invention, the lock / unlock detection housing unit is configured to be rotatable about an axis of rotation parallel to the mounting surface.

[0018] This allows the lock / unlock detection unit to be easily positioned at an appropriate position simply by rotating it.

[0019] In the lock / unlock monitoring device according to the present invention, the lock / unlock detection housing unit and / or the open / close detection housing unit can be separated from the main housing unit.

[0020] This allows the lock / unlock monitor device to be positioned freely due to the high degree of freedom in placement provided by the separated structure. [Brief description of the drawings]

[0021] [Figure 1] 1 is a diagram showing a lock / unlock monitoring device 100 which is an embodiment of the lock / unlock monitoring device according to the present invention. [Diagram 2] FIG. 1 is a perspective view of a lock / unlock monitor 100. [Diagram 3] FIG. 1 is a perspective view of a lock / unlock monitor 100. [Figure 4] FIG. 2 is a diagram illustrating a hardware configuration of a lock / unlock detection unit 103. [Diagram 5] FIG. 2 is a diagram illustrating a hardware configuration of a control unit 107. [Figure 6] FIG. 2 is a diagram illustrating a hardware configuration of an open / close detection unit 109. [Figure 7]FIG. 13 is a diagram showing an outline of determination of a locked or unlocked state. [Figure 8] FIG. 13 is a diagram showing an outline of determination of a locked or unlocked state. [Figure 9] 13 is a flowchart showing a lock / unlock monitoring process. [Figure 10] 13 is a flowchart showing a lock / unlock monitoring process. [Figure 11] 13 is a flowchart showing a lock / unlock determination process. [Figure 12] 11A and 11B are diagrams showing another embodiment of the lock / unlock monitor device according to the present invention. [Figure 13] 11A and 11B are diagrams showing another embodiment of the lock / unlock monitor device according to the present invention. [Figure 14] FIG. 1 is a diagram showing a conventional lock / unlock monitoring device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. EXAMPLES

[0023] The lock / unlock monitoring device according to the present invention will be described below by taking a lock / unlock monitoring device 100 as an example of an embodiment.

[0024] 1. Overview of the lock / unlock monitor 100 The lock / unlock monitoring device 100 monitors the locked / unlocked state of a lock / unlock device L attached to a door D, which is an opening and closing part. The lock / unlock monitoring device 100 is installed at a position a predetermined distance away from the door D on a wall W that is arranged perpendicular to the door D.

[0025] In addition, the locking / unlocking monitoring device 100 projects a predetermined detection light from its installation position toward the locking / unlocking device L from diagonally forward in Figure 1, receives reflected light from the locking / unlocking device L, and monitors the locked and unlocked states of the locking / unlocking device L.

[0026] In FIG. 1, the locking / unlocking device L monitored by the locking / unlocking monitoring device 100 has a handle portion LH which is a throne that operates a latch when gripped and turned, and a thumb turn LS which is located on the handle portion LH and is an operating part that operates a deadbolt.

[0027] The thumb turn LS changes its state between a locked state (see FIG. 5) and an unlocked state (see FIG. 6) within an operating part movement range formed by rotation around a specified axis. The user operates the thumb turn LS to change the state, thereby switching the locking / unlocking device L between the locked state and the unlocked state.

[0028] This makes it possible to easily monitor the locking and unlocking states and network the devices without modifying the locking and unlocking devices that are already installed.

[0029] 2. Configuration of the lock / unlock monitor 100 The configuration of the lock / unlock monitoring device 100 will be described with reference to Fig. 2, which is a perspective view of the lock / unlock monitoring device 100. The lock / unlock monitoring device 100 has a housing unit 101, a lock / unlock detection unit 103, a communication unit 105, a control unit 107, and an open / close detection unit 109.

[0030] The housing unit 101 has a main housing unit 101a, a lock / unlock detection housing unit 101b, and an open / close detection housing unit 101c. The main housing unit 101a has a rectangular parallelepiped shape with semi-cylindrical shapes at both ends. The main housing unit 101a has an attachment surface P101a for attaching the housing unit 101 to a predetermined position (see FIG. 3). The main housing unit 101a accommodates a communication unit 105 and a control unit 107 inside.

[0031] The locking / unlocking detection housing 101b is disposed at one end of the main housing 101a. The locking / unlocking detection housing 101b has a first detection direction adjustment housing 101b1 and a second detection direction adjustment housing 101b3. The first detection direction adjustment housing 101b1 has a rectangular parallelepiped shape with a semi-cylindrical shape at one end. The first detection direction adjustment housing 101b1 has a rotation axis J101b1 perpendicular to the mounting surface P101a. The central axis of the arc surface of the semi-cylindrical shape of the first detection direction adjustment housing 101b1 corresponds to the rotation axis J101b1. The first detection direction adjustment housing 101b1 is attached to the main housing 101a so as to be rotatable around the rotation axis J101b1.

[0032] The second detection direction adjustment housing part 101b3 has a rotation axis J101b3 parallel to the mounting surface P101a. The second detection direction adjustment housing part 101b3 has a cylindrical shape. The central axis of the cylindrical shape of the second detection direction adjustment housing 101b3 corresponds to the rotation axis J101b3. The second detection direction adjustment housing part 101b3 is attached to the main housing part 101a so as to be rotatable around the rotation axis J101b3. The second detection direction adjustment housing part 101b3 houses the lock / unlock detection part 103 inside. The second detection direction adjustment housing part 101b3 has a light projection / reception opening A101b3 so that the light projection part 103a of the lock / unlock detection part 103 (described later) arranged inside can project detection light toward the outside and the light reception part 103b (described later) can receive reflected light of the detection light from the outside.

[0033] The open / close detection housing unit 101c is disposed at an end of the main housing unit 101a different from the end to which the lock / unlock detection housing unit 101b is attached. The open / close detection housing unit 101c has a rotation axis J101c perpendicular to the attachment surface P101a. As shown in FIG. 3, the open / close detection housing unit 101c has a columnar shape with an L-shaped cross section perpendicular to the attachment surface P101a, and has a semi-cylindrical shape at one end. The central axis of the arc surface of the semi-cylindrical shape in the open / close detection housing unit 101c corresponds to the rotation axis J101c. The open / close detection housing unit 101c is attached to the main housing unit 101a so as to be rotatable around the rotation axis J101c. The open / close detection housing unit 101c accommodates the open / close detection unit 109 inside.

[0034] The locking / unlocking detection unit 103 is configured using a distance measuring area image sensor using the TOF (Time-Of-Flight) method. The locking / unlocking detection unit 103 projects near-infrared laser light, which is detection light, into an operation unit change range ALS (described later) where the state of the thumb turn LS of the locking / unlocking device L changes between an unlocked state and a locked state, and measures the distance to the thumb turn LS.

[0035] The hardware configuration of the lock / unlock detection unit 103 is shown in FIG. 4. The lock / unlock detection unit 103 has a light-projecting unit 103a, a light-receiving unit 103b, a detection control unit 103c, and an interface unit 103d. The light-projecting unit 103a projects a red laser beam as detection light. The light-receiving unit 103b is composed of a light-receiving lens that receives and collects reflected light of the detection light, and photodiodes arranged in a two-dimensional matrix. Each of the photodiodes arranged in the two-dimensional matrix forms a partial light-receiving region, and a single detection region is formed as a collection of the partial light-receiving regions.

[0036] The detection control unit 103c controls the timing of light projection and reception by the light projection unit 103a and the light reception unit 103b. The detection control unit 103c also measures the time from projecting the detection light to receiving the reflected light of the detection light, and calculates the distance to the object that reflected the detection light. Furthermore, the detection control unit 103c transmits the calculated distance as detection information to the control unit 107 via the interface unit 103d.

[0037] Returning to Fig. 3, the communication unit 105 connects to a predetermined communication terminal HP and transmits lock / unlock information indicating the locked / unlocked state of the locking / unlocking device L. The communication unit 105 connects to the communication terminal HP via a wireless communication device in the room where the door D is located, for example, using wireless LAN (Local Area Network) technology. Note that an address that uniquely identifies the communication unit 105, such as a MAC address or an IP address, is set in advance in the communication unit 105.

[0038] The configuration of the control unit 107 will be described with reference to Fig. 5. The control unit 107 includes a CPU 107a, a memory 107b, an interface unit 107c, and a power supply unit 107h.

[0039] The CPU 107a performs processing based on an operating system (OS), firmware, a lock / unlock monitoring program, and other applications recorded in the memory 107b. The memory 107b provides a working area for the CPU 107a. The memory 107b records and holds the OS, the lock / unlock monitoring program, and other applications, as well as various data.

[0040] The interface unit 107c is connected to the lock / unlock detection unit 103. The CPU 107a transmits and receives predetermined information to and from the lock / unlock detection unit 103 via the interface unit 107c, and controls the operation of the lock / unlock detection unit 103. The interface unit 107c is also connected to the communication unit 105. The CPU 107a transmits and receives predetermined information to and from the communication unit 105 via the interface unit 107c, and controls the operation of the communication unit 105.

[0041] The power supply unit 107h has a power source such as a button battery housed inside the housing unit 101. The power supply unit 107h supplies power to the lock / unlock detection unit 103, the communication unit 105, and other components of the control unit 107.

[0042] Returning to FIG. 3, the open / close detection unit 109 judges whether the door D, which is the object of open / close detection, is open or closed by detecting a change in magnetic force. The hardware configuration of the open / close detection unit 109 is shown in FIG. 6. The open / close detection unit 109 has a magnetic force detection unit 109a, a magnetic force detection control unit 109b, and an interface unit 109c. The magnetic force detection unit 109a detects a magnetic force generated by a magnetic force generation unit (not shown), for example, a magnet, that is installed facing the door, which is the object of open / close detection. When a predetermined magnetic force is detected by the magnetic force detection unit 109a, the magnetic force detection control unit 109b judges that "the door W is in a closed state" and transmits the information to the control unit 107 via the interface unit 109c as open / close detection information.

[0043] 3. Installation of lock / unlock monitor device 100 The installation of the locking / unlocking monitoring device 100 will be described with reference to Fig. 1. The user places the mounting surface P101a of the main body housing 101a of the locking / unlocking monitoring device 100 along one side of the wall W to which the device is to be attached, and confirms the general mounting position. The user places the open / close detection unit 101c so that the open / close detection surface P101c of the open / close detection unit 101c is along the front surface of the door D. Note that a predetermined gap is provided between the door D and the open / close detection surface P101c so that a magnetic force generating unit (not shown) can be disposed.

[0044] The user rotates the main housing unit 101a around the rotation axis J101c and positions the lock / unlock detection housing unit 101b at a position at approximately the same height as the locking / unlocking device L. The user rotates the first detection direction adjustment housing unit 103b1 of the lock / unlock detection unit 103 around the rotation axis J103b1 and also rotates the second detection direction adjustment housing unit 103b3 around the rotation axis J103b3, thereby forming the detection range A103 at the position of the thumb turn LS of the locking / unlocking device L for which locking / unlocking is to be determined.

[0045] The user fixes the positions of the main housing 101a, the lock / unlock detection housing 101b, and the open / close detection housing 101c using double-sided tape or predetermined fixing screws.

[0046] In this way, in the lock / unlock monitoring device 100, by rotating the lock / unlock detection housing unit 101b and the open / close detection housing unit 101c relative to the main housing unit 101a and adjusting their relative positional relationship, the lock / unlock detection unit 103 and the open / close detection unit 109 can be positioned simultaneously in appropriate positions, and ultimately the lock / unlock monitoring device 100 can be easily positioned in an appropriate position.

[0047] Fourth, operation of control unit 107 1. Overview of lock / unlock decisions The locking / unlocking determination process in the control unit 107 will be outlined with reference to Fig. 7 and Fig. 8. Fig. 7 shows the detection state of the locking / unlocking device L in the locked state as seen by the locking / unlocking monitoring device 100. Similarly, Fig. 8 shows the detection state of the locking / unlocking device L in the unlocked state as seen by the locking / unlocking monitoring device 100.

[0048] Here, the detection control unit 103c of the locking / unlocking detection unit 103 of the locking / unlocking monitoring device 100 projects detection light through the light projecting unit 103a to a detection area A103 including an operation unit movement range ALS, which is a range in which the thumb turn LS of the locking / unlocking device L operates. The detection control unit 103c receives reflected light of the projected detection light through the light receiving unit 103b. The light receiving unit 103b has partial light receiving areas divided into 10×10. The detection control unit 103c calculates the time from light projection to light reception for each partial light receiving area, and then calculates the distance to a reflecting object using the calculated time. Note that each partial light receiving area of ​​the light receiving unit 103b corresponds to a partial detection area A103[x, y] (x is the value on the horizontal axis, y is the value on the vertical axis, and x and y are natural numbers from 1 to 10) obtained by dividing the detection area A103 into 10×10.

[0049] As shown in Figure 7, when the locking / unlocking device L is in the locked state, the thumb turn LS is present in the partial detection area A103[2,5] to A103[7,5], so the distance to the reflective object calculated by the locking / unlocking detection unit 103 for the partial detection area A103[2,5] to A103[7,5] is smaller than the values ​​for the other partial detection areas.

[0050] On the other hand, as shown in FIG. 8, when the locking / unlocking device L is in the unlocked state, the thumb turn LS is present in the partial detection areas A103[4,3] to A103[4,7] and A103[5,3] to A103[5,7], so the distance to the reflective object calculated by the locking / unlocking detection unit 103 is smaller for the partial detection areas A103[4,3] to A103[4,7] and A103[5,3] to A103[5,7] than for the other partial detection areas.

[0051] Therefore, the distance values ​​change significantly between the locked and unlocked states of the locking / unlocking device L in the partial detection areas A103[2,5] to A103[3,5], A103[4,3] to A103[4,4], A103[5,3] to A103[5,4], A103[6,5] to A103[7,5], A103[4,6] to A103[4,7], and A103[5,6] to A103[5,7].

[0052] After installing the locking / unlocking monitoring device 100, the user calculates the distance to each partial detection area in the locked state and the unlocked state of the locking / unlocking device L during setup in the control unit 107, and stores in the memory 107b the partial detection area between which the distance changes significantly as a target partial detection area. The user also stores in the control unit 107 the values ​​of the target partial detection area in the locked state and the unlocked state as reference locked state information and reference unlocked state information, respectively.

[0053] When the control unit 107 acquires light reception information from the lock / unlock detection unit 103, it extracts the distance value of the target portion detection area, compares it with the reference locked state information and the reference unlocked state information, and determines whether the lock / unlock device L is in a locked state or an unlocked state.

[0054] 2. Operation of the control unit 107 The lock / unlock monitoring process executed by the CPU 107a of the control unit 107 will be described with reference to the flowcharts shown in FIGS.

[0055] When the power supply is turned on in the locking / unlocking monitoring device 100, power is supplied to the open / close detection unit 109 via the power supply unit 107h. The magnetic force detection control unit 109b of the open / close detection unit 109 executes an open / close state determination process for determining whether the door D is open or closed. When the magnetic force detection control unit 109b acquires the magnitude of the magnetic force via the magnetic force detection unit 109a, the magnetic force detection control unit 109b determines whether the door D is open or closed based on the change in the magnetic force. For example, when the magnetic force becomes larger than a predetermined value, the magnetic force detection control unit 109b determines that the door D is in a closed state, and when the magnetic force becomes smaller than the predetermined value, the magnetic force detection control unit 109b determines that the door D is in an open state. The magnetic force detection control unit 109b transmits the determined state of the door D as open / close detection state information to the control unit 107 via the interface unit 109c.

[0056] As shown in FIG. 9, when the power is turned on, the CPU 107a operates the lock / unlock detection unit 103 to obtain the locked / unlocked state of the thumb turn LS, stores the information as the locked / unlocked state in the memory 107b (S901), and stops the operation of the lock / unlock detection unit 103.

[0057] When the CPU 107a acquires the open / close detection information from the open / close detection unit 109 (S903), it judges whether the acquired open / close detection information is "closed" or not (S905). When the CPU 107a judges that the acquired open / close detection information is not the closed state, that is, the "open state", it judges that the door D has changed from the closed state to the open state, and transmits the open / close information indicating that the door D is open to a predetermined communication terminal PH via the communication unit 105 (S907).

[0058] On the other hand, if the CPU 107a determines that the acquired opening / closing detection information is “closed”, it determines that the door D has changed from an open state to a closed state, and transmits the opening / closing information indicating that the door D is open to a predetermined communication terminal PH via the communication unit 105 (S909).

[0059] 10, in response to this transition to the closed state, the CPU 107a transmits detection start information to the lock / unlock detection unit 103 to determine whether the thumb turn LS is locked or unlocked (S701). When the lock / unlock detection unit 103 receives the detection start information, it emits detection light from the light emitting unit 103a to the detection area A103. When the light receiving unit 103b receives the reflected light of the emitted detection light, the lock / unlock detection unit 103 calculates the distance to the object that reflected the detection light from the time from when the light was emitted to when the light was received for each partial light receiving area of ​​the light receiving unit 103b. When the lock / unlock detection unit 103 finishes calculating the distance for all partial light receiving detection areas, it transmits detection information to the control unit 107 in which the calculated distance for each partial light receiving area is set as the distance for the corresponding partial detection area A103[x,y].

[0060] When the CPU 107a acquires the detection information (S703), it extracts the distance value of the target portion detection area (S705). The CPU 107a acquires the reference locked state information and the reference unlocked state information from the memory 107b (S707).

[0061] The CPU 107a compares the acquired distance values ​​of each target portion detection area with the reference locking state information and the reference unlocking state information, and executes a locking / unlocking determination process to determine whether the locking / unlocking device L is in a locked state or an unlocked state (S709).

[0062] The locking / unlocking determination process will be described with reference to Fig. 11. The CPU 107a determines whether the acquired value of each target portion detection area matches or is similar to the reference locking state information (S801). If the CPU 107a determines that the acquired value of each target portion detection area matches or is similar to the reference locking state information, it determines that the locking / unlocking device L is in the locked state (S803).

[0063] The CPU 107a judges whether the acquired value of each target portion detection area matches or is similar to the reference unlocked state information (S805). If the CPU 107a judges that the acquired value of each target portion detection area matches or is similar to the reference unlocked state information, it judges that the locking / unlocking device L is in the unlocked state (S807).

[0064] When the acquired value of each target portion detection area does not match or resemble any of the reference lock / unlock state information and the reference unlock information, the CPU 107a judges whether the acquired value of each target portion detection area is smaller than the value of the reference lock / unlock state information (S809). When the CPU 107a judges that the acquired value of each target portion detection area is smaller than the value of the reference lock / unlock state information, it judges that an object exists between the lock / unlock monitor device 100 and the lock / unlock device L, and judges that the lock / unlock device L is being operated to unlock by a human hand (S813).

[0065] 10, when the CPU 107a determines that the determined state of the locking / unlocking device L has changed from the locking / unlocking state information stored and held in the memory 107b (S1001), the CPU 107a stores and holds the determined state of the locking / unlocking device L as the locking / unlocking state information in place of the existing locking / unlocking state information in the memory 107b (S1003). The CPU 107a generates locking / unlocking information indicating the determined state of the locking / unlocking device L (S711) and transmits the generated locking / unlocking information to a predetermined communication terminal HP via the communication unit 105 (S713).

[0066] The CPU 107a repeats the process of steps S701 to S717 until a predetermined time has elapsed (S715). When the predetermined time has elapsed, the CPU 107a transmits detection end information to the lock / unlock detection unit 103 and stops the operation of the lock / unlock detection unit 103 (S1005). The CPU 107a repeats the process of steps S701 to S717 until the operation ends (S715).

[0067] In this way, in the lock / unlock monitor 100, the lock / unlock detection unit 103 operates only for a certain period when the door D is closed, so that the lock / unlock monitor can be used for a long period with reduced power consumption.

[0068] Furthermore, by using the locking / unlocking monitoring device 100, a locking / unlocking device L that is not networked or could not be networked can be easily networked, and the user can be appropriately informed of the open / closed state of the door D and the locked / unlocked state of the thumb turn LS.

[0069] [Other embodiments] (1) Position of the locking / unlocking monitor 100: In the above-mentioned first embodiment, the locking / unlocking monitor 100 is installed on the wall W arranged perpendicular to the door D which is the opening and closing part, but the position is not limited to the illustrated one as long as the locking / unlocking monitor 100 can project the detection light onto the thumb turn LS of the locking / unlocking device L. For example, the locking / unlocking monitor 100 may be installed on the ceiling.

[0070] In the above-mentioned first embodiment, the locking / unlocking monitor 100 judges whether the locking / unlocking device L has a thumb turn LS disposed on the handle LH, but the locking / unlocking monitor 100 may judge whether the locking / unlocking device L has a thumb turn LS disposed as separate members. For example, in the case of a locking / unlocking device L2 shown in Fig. 12, the main housing 101a may be disposed directly on the door D so that the locking / unlocking detection housing 101b of the locking / unlocking monitor 100 can be disposed near the thumb turn LS2 and the open / close detection housing 101c can be disposed near the edge of the door D.

[0071] (2) Detection target of the locking / unlocking monitoring device 100: In the above-mentioned embodiment 1, the locking / unlocking device L, which is the handle of the door D, is shown as the target for determining whether the door is locked or unlocked, but the detection target is not limited to the above example. For example, the locking / unlocking monitoring device 100 may determine whether the door is locked or unlocked by targeting a locking part of a window. In this case, as shown in FIG. 13, the locking / unlocking monitoring device 100 may be disposed on a window frame F to which a crescent lock C, which is the locking part of the window, is attached, and the locking / unlocking detection housing unit 101b may be disposed so as to project detection light toward the crescent lock C below, and the opening / closing detection housing unit 101c may be disposed in the horizontal direction so as to detect whether the window is open or closed.

[0072] (3) Second detection direction adjustment housing 101b3: In the first embodiment described above, the second detection direction adjustment housing 101b3 may be rotated at predetermined angles, for example, at 15 degrees or 30 degrees, and temporarily fixed. This allows the light projection and reception directions to be easily changed.

[0073] (4) Open / close detection housing unit 101c: In the above-described first embodiment, the open / close detection housing unit 101c has a columnar shape with an L-shaped cross section perpendicular to the mounting surface P101a. However, the shape is not limited to the example shown, so long as it can detect magnetic force from a magnetic force generating unit such as a magnet.

[0074] (5) Separation of the locking / unlocking detection housing unit 101b and the opening / closing detection housing unit 101c: In the above-mentioned embodiment 1, the housing unit 101 has an integrated structure in which the main housing unit 101a, the locking / unlocking detection housing unit 101b, and the opening / closing detection housing unit 101c are connected by the rotation axes J101b1 and J101c, but the locking / unlocking detection housing unit 101b and / or the opening / closing detection housing unit 101c may have a separate structure that can be separated from the main housing unit 101a by the corresponding rotation axis. This allows the high freedom of arrangement due to the separate structure to avoid obstacles and the like even if the integrated locking / unlocking monitoring device cannot be installed due to the type of door, the shape and structure of the handle or thumb turn, or other obstacles. In the case of a separate structure, the housing units may be connected by wire or wirelessly.

[0075] (6) Detection light: In the above-mentioned embodiment 1, the light projecting unit 103a of the lock / unlock detection unit 103 projects near-infrared laser light, but the light is not limited to the above example as long as it can detect the state of the thumb turn LS. For example, it may be a near-infrared LED or a red laser light.

[0076] (7) Locking / Unlocking Judgment Process: In the above-described first embodiment, the CPU 107a judges not only the locked / unlocked state of the locking / unlocking device L but also the open state of the door D, which is the opening / closing part, and the unlocking operation state of the thumb turn, in the locking / unlocking judgment process, but it may be configured to judge only the locked / unlocked state of the locking / unlocking device L. Also, it may be configured to judge only the locked state or only the unlocked state.

[0077] (8) Transmission of Lock / Unlock Information: In the above-mentioned first embodiment, the control unit 107 transmits the lock / unlock information every time it determines whether to lock or unlock, but it may transmit the lock / unlock information when the state is other than the locked state. Also, it may transmit the lock / unlock information only when the state of the lock / unlock device L changes. Furthermore, it may transmit the lock / unlock information when some external signal is acquired. Furthermore, it may transmit the lock / unlock information after a predetermined time, such as one minute, after determining whether to transmit. Furthermore, it may transmit the lock / unlock information at a predetermined time.

[0078] (9) Configuration of the light receiving section 103b: In the above-described first embodiment, the light receiving section 103b has a light receiving lens. However, if the photodiode can receive a predetermined amount of light, the light receiving lens does not have to be used.

[0079] (10) Communication unit 105: In the above-mentioned first embodiment, the communication unit 105 communicates using a wireless LAN, but it may communicate via a base station using a mobile phone line or the like. Also, a communication method that enables "long-distance data communication" with "low current consumption" compatible with so-called LPWA (Low Power, Wide Area), such as Sigfox (registered trademark), may be used.

[0080] Also, instead of wireless communication, wired communication such as Ethernet or MobBus may be used.

[0081] (11) Power supply unit 107h: In the above-mentioned embodiment 1, the power supply unit 107h uses a button battery, but it is not limited to the illustrated one as long as it can supply power to operate each component. For example, a predetermined rechargeable battery such as a dry cell or a solar cell may be used.

[0082] Alternatively, power may be supplied from an external power source such as a commonly installed outlet or a storage battery.

[0083] (12) Configuration of the control unit 107: In the above-mentioned embodiment 1, the control unit 107 executes the locking / unlocking monitoring process using the CPU 107a, but it is not limited to the illustrated example as long as it executes the locking / unlocking monitoring process. For example, the locking / unlocking monitoring process may be executed using a dedicated logic circuit.

[0084] (13) Locking / Unlocking Monitoring Processing: In the above-described first embodiment, the flowcharts of Figs. 9 to 11 are shown as the locking / unlocking monitoring processing, but the processing is not limited to the illustrated flowcharts as long as it is possible to monitor the locked / unlocked state of the locking / unlocking device L.

[0085] In the lock / unlock monitoring process (FIGS. 9 to 11) in the first embodiment described above, the detection by the detection unit 103 is started using a change in the open / close detection unit 109 as a trigger, but in addition to and / or instead of the change in the open / close detection unit 109, detection by the detection unit 103 may be started by a periodic trigger at predetermined time intervals. Furthermore, other external input information may be used as a trigger.

[0086] (14) Angle Adjustment Unit: In the above-described first embodiment, an angle adjustment unit for adjusting the arrangement angle of the main housing unit 101a may be used to tilt the lock / unlock monitoring device 100 and install it at an angle to adjust the angle of the light projection and reception opening A101, thereby adjusting the projection direction of the detection light and the reception direction of the reflected light.

[0087] (15) Confirmation of detection area: In the above-mentioned embodiment 1, further, in order to align the detection area of ​​the light projecting unit 103a with the target thumb turn LS, an illumination LED may be arranged as a detection area confirmation unit indicating the center and / or range of the detection area in the lock / unlock detection unit 103. This allows the user to easily recognize the center position and range of the detection area, and therefore allows the placement position of the lock / unlock monitor and the projection angle of the detection light to be easily adjusted.

[0088] (16) Projection of detection light: In the above-described first embodiment, the light projecting unit 103a projects the detection light onto the entire detection area A103, but the detection light may be projected sequentially onto each partial detection area A103[x, y]. In this case, for example, a LiDAR (Light Detection and Ranging) method may be used.

[0089] (17) Receiving reflected light: In the above-described first embodiment, the light receiving unit 103b receives reflected light from the entire partial detection area A103[x, y]. However, the light receiving unit 103b may receive light sequentially for each partial detection area A103[x, y].

[0090] (18) Configuration of the lock / unlock detection unit 103: In the above-mentioned embodiment 1, the lock / unlock detection unit 103 is a distance measuring area image sensor using the TOF method, but it may be an image sensor that captures an image of an area corresponding to the detection range. In this case, the control unit 107 may determine the change in the image and determine the locked or unlocked state of the lock / unlock device L.

[0091] In addition, the light receiving section 103b of the lock / unlock detection section 103 has a partial detection area of ​​10×10, but it is not limited to the example as long as it can receive reflected light. It can be freely set to 16×16 or other size depending on the performance required for the lock / unlock monitoring device.

[0092] (19) Operation period of the lock / unlock detection unit 103: In the lock / unlock monitoring device 100 of the first embodiment, the lock / unlock detection unit 103 is operated only during a certain period when the door D is closed, but the operation period is not limited to the above example as long as the lock / unlock monitoring device can save power compared to the case where the lock / unlock detection unit 103 is constantly operated. For example, the lock / unlock detection unit 103 may be operated for a certain period after the door D is opened.

[0093] When power is constantly supplied, the lock / unlock detection unit 103 may be operated constantly. [Industrial Applicability]

[0094] The lock / unlock monitoring device according to the present invention can be used in places such as factories where it is necessary to monitor the locked and unlocked states of opening and closing parts. [Explanation of symbols]

[0095] 100 Lock / unlock monitoring device 101 Housing A101 Light emitting / receiving aperture 103 Lock / unlock detector 103a Light projector 103b Light receiving section 103c Detection control unit 103d Interface section A103 Detection area 105 Communications Department 107 Control Unit 107a CPU 107b Memory 107c Interface section 107h Power supply section 109 Angle adjustment section 109a Magnetic force detector 109b Magnetic force detection control unit 109c Interface section 200 Lock / unlock monitoring device 203a Light emitter / receiver section HP Communication Terminal L Locking / Unlocking Device LH Handle LS Thumb Turn ALS operation range D Door W Wall C Crescent Tablet F Window Frame

Claims

1. A locking / unlocking monitor that monitors an open / close state of an opening / closing part, the state of which changes between an open state and a closed state, and locks and unlocks the opening / closing part, the locking / unlocking monitor monitoring the locking / unlocking state of an operation part that switches between the locked state and the unlocked state by human operation, the state of which changes between the locked state and the unlocked state, A main housing part having a mounting surface for mounting at a predetermined position; a lock / unlock detection housing unit that houses a detection means that projects a predetermined light as detection light into a detection area including an operation unit variation range, which is a range within which a state of the operation unit varies from the unlocked state to the locked state, when the opening / closing unit is in the closed state, receives reflected light of the detection light, and provides information on the received reflected light as detection information; an open / close detection housing that accommodates an open / close detection unit that detects the open state and the closed state of the open / close unit based on a change in magnetic force; having The lock / unlock detection housing unit is Located at one end of the main housing portion, The open / close detection housing unit includes: the lock / unlock detection housing unit is disposed at an end of the main housing unit different from the end of the main housing unit where the lock / unlock detection housing unit is disposed, The lock / unlock detection housing unit is The direction in which the detection light is projected and the direction in which the reflected light is received can be adjusted. The open / close detection housing unit includes: The direction in which the change in magnetic force is detected can be adjusted; A lock / unlock monitoring device comprising:

2. In the lock / unlock monitoring device according to claim 1, The lock / unlock detection housing unit is The device is configured to be rotatable about a rotation axis perpendicular to the mounting surface, The open / close detection housing unit includes: The device is configured to be rotatable about a rotation axis perpendicular to the mounting surface; A lock / unlock monitoring device comprising:

3. In the lock / unlock monitoring device according to claim 1 or claim 2, The lock / unlock detection housing unit is being configured to be rotatable about a rotation axis parallel to the mounting surface; A lock / unlock monitoring device comprising:

4. In the lock / unlock monitoring device according to any one of claims 1 to 3, The lock / unlock detection housing unit and / or the open / close detection housing unit are It can be separated from the main housing part; A lock / unlock monitoring device comprising:

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