Key management cabinet, management system and key management method

Abstract

The present invention discloses a key management cabinet, which belongs to the technical field of article storage, and comprises a cabinet, a plurality of key storage and access devices arranged in the cabinet, and a matching key seat connected with a key and having an RFID tag, and is characterized in that: the key storage and access device comprises a connecting seat connected to the cabinet, an RFID reader / writer fixed on the connecting seat for reading and writing the RFID tag in the key seat, and a limit component that limits the key seat in the connecting seat. Based on the above-mentioned key management cabinet, the present invention also provides a key management method and a key management system. The scheme of the present invention can realize that key users can only take keys with corresponding permissions, thereby ensuring the security of key use and preventing malicious copying; it can take into account a variety of application scenarios, has a flexible combination method, can be used independently, can also be used in a network, can be cascaded and expanded, and can balance user needs to the maximum extent.

Description

Technical Field

[0001] The present invention belongs to the technical field of article storage, and in particular relates to a key management cabinet, a management system and a key management method. Background Art

[0002] Keys are special items. If they are stolen or lost due to negligence in management, it will cause great security risks and significant losses.

[0003] At present, most units have many keys to manage, and they mainly adopt manual management mode. Most of them put all the keys together through a large key disk, and the key user takes the key disk away or removes the key from the key disk. The disadvantages of this method are: there is no record of the use of keys, key users, whether the keys are returned, whether the keys are stored safely, etc., resulting in the inability to reliably and effectively supervise the use of keys.

[0004] As a result, intelligent key management cabinets have emerged. For example, Chinese invention patent application No. 201910666749.2 discloses a multi-door key management cabinet that monitors keys by controlling the RFID tags paired with each key.

[0005] The problems of the prior art are as follows: the keys and RFID tags are hung on the key card hook in the cabinet through a key ring, and the cabinet has only one door, so there is no restriction on the corresponding usage rights of relevant personnel, thereby allowing non-related personnel to take the keys at will, causing safety hazards. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a key management cabinet and a key management system, which can realize effective monitoring of the use of each key by arranging a key storage and access device for each key in conjunction with RFID technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] A key management cabinet comprises a cabinet, a plurality of key storage and access devices arranged in the cabinet, and a matching key seat connected with a key and having an RFID tag, characterized in that: the key storage and access device comprises a connecting seat connected to the cabinet, an RFID reader / writer fixed on the connecting seat for reading and writing the RFID tag in the key seat, and a limiting component for limiting the key seat in the connecting seat.

[0009] Based on the above-mentioned key management cabinet, the present invention provides a key management method, including two steps of key retrieval and key return. Key retrieval: the key user performs identity authentication through a fingerprint identifier or a touch screen. After the authentication is passed, the touch screen displays the key information that can be accessed under the corresponding authority. The key user selects the key to be accessed through the touch screen and confirms it. Then the limit component releases the limit of the corresponding key seat and prompts the key user to take it. Key return: the key user performs identity authentication through a fingerprint identifier or a touch screen. After the authentication is passed, the touch screen selects and confirms the key to be returned this time, and then prompts the key user to place the key seat in a key access device without a key seat. The RFID reader / writer in the key access device reads the RFID tag in the key seat to confirm the return of the key.

[0010] Based on the above-mentioned key management cabinet, the present invention provides a key management system, which is characterized by comprising a background server and a plurality of matching key management cabinets.

[0011] The beneficial effects of the present invention are: 1. The key holder and the key storage and access device matched with the key are designed to limit the key. The identity of the personnel and the key use authority are verified by the fingerprint identifier and the touch screen. The personnel can only see and take the keys under the corresponding authority, and the key information is only visible to the authorized personnel, thereby realizing effective monitoring of the key, ensuring the safety of key use and preventing malicious copying; 2. The key management area is disinfected by ultraviolet light to block the infection caused by multiple people's contact during the use of the key; 3. The returned key can be stored in any empty space without returning it to the original position, and the key information is only visible to the authorized personnel to prevent malicious copying; 4. It can take into account a variety of application scenarios, with flexible combination methods, can be used independently or in a network, can be cascaded and expanded, and maximize the balance of user needs.

[0012] The present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the key management cabinet of the present invention;

[0014] Figure 2 It is a front view of the key storage and access device in the key management cabinet of the present invention;

[0015] Figure 3 yes Figure 2 Left view of

[0016] Figure 4 yes Figure 2 Right view of;

[0017] Figure 5 yes Figure 2 Schematic diagram of the internal structure;

[0018] Figure 6 It is a structural schematic diagram of a cam embodiment 1 of the present invention;

[0019] Figure 7 yes Figure 6 A three-dimensional schematic diagram of

[0020] Figure 8 It is a structural schematic diagram of a second embodiment of a cam in the present invention;

[0021] Fig. 9 It is a structural schematic diagram of the first embodiment of the anti-disassembly component in the present invention;

[0022] Fig.10 It is a schematic diagram of the connection between the lock pin and the pin hole in the first embodiment of the anti-disassembly assembly of the present invention;

[0023] Fig.11 It is a schematic structural diagram of a key ring in the first embodiment of the anti-disassembly component of the present invention;

[0024] Fig.12 It is a structural schematic diagram of the second embodiment of the anti-disassembly component in the present invention;

[0025] Fig.13 yes Fig.12 Schematic diagram of the internal structure;

[0026] Fig.14 It is a schematic diagram of the structure of a steel wire rope keychain in the second embodiment of the anti-disassembly component of the present invention;

[0027] Fig.15 It is a structural schematic diagram of the key management system of the present invention.

[0028] In the accompanying drawings: 1 is a cabinet, 2 is a key holder, 2-1 is a limiting groove, 3 is a connecting seat, 3-1 is a positioning groove, 4 is an RFID reader, 4-1 is an indicator light, 5 is a cam, 5-1 is a curved groove, 5-2 is a cam body, 5-3 is a limiting portion, 5-4 is a transition portion, 5-5 is a first positioning portion, 5-6 is a second positioning portion, 6 is a motor, 7 is a micro switch, 8 is a fingerprint identifier, 9 is a touch screen, 10 is a key ring, 10-1 is a pin hole, 11 is a base, 11-1 is a trapezoidal hole, 12 is a lock buckle, 12-1 is a buckle, 13 is a lock pin, 14 is a wire rope key buckle, 15 is an ultraviolet lamp, 16 is a buckle cover,

[0029] A represents the background server, B represents the key management cabinet, and C represents the cascaded key management cabinet. DETAILED DESCRIPTION

[0030] See attached Figure 1The present invention provides a key management cabinet, including a cabinet 1, a plurality of key storage and access devices arranged in the cabinet 1, and a matching key seat 2 connected with a key and having an RFID tag.

[0031] The front panel of the cabinet 1 is provided with two areas, namely, the identification and operation area and the key management area. The identification and operation area is provided with a fingerprint reader 8 and a touch screen 9 for identification and key selection and confirmation. The key management area is provided with a plurality of key access devices, each of which manages a key holder 2. There is usually only one key on a key holder 2, but more than one key can be provided as required.

[0032] Since the key base 2 is often used by people, it is possible to cause contact transmission of bacteria, so an ultraviolet lamp 15 is also provided in the key management area. The ultraviolet light emitted by the ultraviolet lamp 15 can disinfect the entire area (including the key base 2 and the keys thereon in the area).

[0033] A through hole is provided on one side of each key access device on the cabinet 1 for matching the indicator light 4-1 on the RFID reader 4 of the key access device. The indicator light 4-1 indicates different states by changing the color of the indicator light 4-1.

[0034] See attached Figure 2-5 The key storage and access device comprises a connection seat 3 connected to the cabinet 1, an RFID reader 4 fixed on the connection seat 3 for reading and writing the RFID tag in the key seat 2, and a limit assembly for limiting the key seat 2 in the connection seat 3. The limit assembly can limit or release the limit of the key seat 2 inserted into the connection seat 2 for authority management, and comprises a cam 5 and a motor 6 for driving the cam 5 to enter the limit groove 2-1 in the key seat 2 to form a limit fit.

[0035] A positioning groove 3-1 is provided on the connection seat 3. When returning the key, the side of the key seat 2 with the RFID tag is placed at the bottom of the positioning groove 3-1 in the connection seat 3. Limiting grooves 2-1 are provided on both sides of the key seat 2, so that the key seat 2 will not affect subsequent operations regardless of whether it enters the positioning groove 3-1 in the forward or reverse direction. At this time, the limiting part of the cam 5 is located below the limiting groove 2-1. The motor 6 drives the cam 5 to rotate so as to enter the limiting groove 2-1 so that the key seat 2 is limited in the connection seat 3. At this time, the controller on the RFID reader 4 reads the RFID tag and sends a return instruction to the background.

[0036] Cam embodiment 1: See attached Figure 4-7 A micro switch 7 for detecting the rotation position of the cam 5 is provided on the RFID reader 4 and located on the inner side of the cam 5 , and a curved groove 5 - 1 matching the micro switch 7 is provided on the cam 5 .

[0037] The cam 5 comprises a cam body 5-2 and a stopper 5-3 protruding from the outer peripheral surface of the cam body. The stopper 5-3 is fan-shaped and has the same thickness as the cam body.

[0038] A transition portion 5-4 is provided on the outer peripheral surface of the cam body 5-2 and on one side of the limiting portion. The transition portion 5-4 is fan-shaped and has an outer diameter greater than the diameter of the cam body 5-2 and less than or equal to the outer diameter of the limiting portion 5-3, and the central angle occupied by the transition portion 5-4 is smaller than the central angle occupied by the limiting portion 5-3. Its thickness gradually changes from thin to thick until the thickness is equal to that at the junction with the limiting portion 5-3. The function of the transition portion 5-4 is to adjust the position of the key seat 2 by lateral squeezing the limiting groove 2-1 when the key seat 2 is inserted shallowly into the connecting seat 3 so that the RFID reader 4 can read and write the RFID tag.

[0039] The curved groove 5-1 is arranged at the intersection of the edge of the cam body 5-2 and the limit portion 5-3 and connected to the transition portion 5-4. It starts from the intersection of the edge of the cam body 5-2 and the limit portion 5-3, passes through the transition portion 5-4, and ends at the gear body 5-2. Its two ends smoothly transition with the surface of the cam body 5-2.

[0040] The central angle of the curved groove 5-1 is greater than the sum of the central angles of the limiting portion 5-3 and the transition portion 5-4, and preferably greater than or equal to twice the central angle of the limiting portion 5-3.

[0041] During specific operation, the motor 6 drives the cam 5 to rotate in the direction of the arrow shown in the figure. In the initial position, the trigger end of the micro switch 7 is squeezed by the cam body 5-2 and is in the on state. The cam 5 rotates to make the transition part 5-4 enter the limit groove 2-1 to adjust the position of the key seat 2 so as to facilitate the limit part 5-3 to enter the limit groove 2-1. When the limit part 5-3 enters the limit groove 2-1, the trigger end of the micro switch 7 will enter the curved groove 5-1 from the side of the cam body 5-2 to change the micro switch 7 from the on state to the off state. The RFID reader 4 detects the change in the state of the micro switch 7, and controls the motor 6 to stop the rotation of the cam 5 after a certain delay. At this time, the middle part of the limit part 5-3 is located in the limit groove 2-1, and the RFID reader 4 reads and writes the RFID tag in the key seat 2.

[0042] When the key holder 2 needs to be taken out, the motor 6 drives the cam 5 to rotate, and when the trigger end of the micro switch 7 leaves the curved groove 5-1 and enters the side of the cam body 5-2, the micro switch 7 changes from the off state to the on state (at this time, the limit part 5-3 has left the limit groove 2-1 for a distance and is no longer limited). After the RFID reader 4 detects the change in the state of the micro switch 7, it controls or delays the motor 6 for a certain period of time to stop driving the cam 5 to rotate, so that the cam 5 rotates to the initial state position.

[0043] Cam embodiment 2: See attached Figure 8 , which is different from the first embodiment, the motor 6 in this embodiment drives the cam 5 to rotate forward and reversely to limit and release the key seat 2.

[0044] The cam 5 includes a cam body 5-2, a limiting portion 5-3, a first positioning portion 5-5 and a second positioning portion 5-6. The limiting portion 5-3, the first positioning portion 5-5 and the second positioning portion 5-6 are all fan-shaped, and the thickness is equal to that of the cam body 5-2. The outer diameters of the first positioning portion 5-5 and the second positioning portion 5-6 are equal and larger than the outer diameter of the limiting portion 5-3. Among them, the part of the first positioning portion 5-5 whose outer diameter is larger than the outer diameter of the limiting portion 5-3 is used to drive the micro switch 7 from the disconnected state to the connected state. After installation, the first positioning portion 5-5 and the second positioning portion 5-6 are respectively located on both sides of the connecting seat 3, and are used to locate the two positions of the cam 5. The end face of the limiting portion 5-3 entering the limiting groove 2-1 is an inclined surface, and the lateral extrusion effect on the limiting groove 2-1 is used to adjust the position of the key seat 2 so that the RFID reader 4 can read and write the RFID tag.

[0045] The first positioning portion 5-5 is located on one side of the limiting portion 5-3 and connected thereto. The second positioning portion 5-6 is located on the other side of the limiting portion 5-3 and is spaced from the limiting portion 5-3 at an angle greater than or equal to the central angle of the limiting portion 5-3 to ensure that there is enough space for the key seat 2 to be inserted into the connecting seat 3.

[0046] In the initial position, the right end of the second positioning part 5-6 contacts or approaches the connecting seat 3, at which time the micro switch 7 is in the disconnected state, the motor drives the cam 5 to rotate forward, and the limiting part 5-3 enters the limiting groove 2-1 to adjust and limit the position of the key seat 2. When the limiting part 5-3 enters the limiting groove 2-1, the trigger end of the micro switch 7 is squeezed by the side of the first positioning part 5-5 and is in the connected state. The RFID reader 4 detects the change in the state of the micro switch 7, and controls the motor 6 to stop driving the cam 5 to rotate after a certain delay. At this time, the middle part of the limiting part 5-3 is located in the limiting groove 2-1 (the left end of the first positioning part 5-5 contacts or approaches the connecting seat 3), and the RFID reader 4 reads and writes the RFID tag in the key seat 2.

[0047] When the key holder 2 needs to be removed, the motor 6 drives the cam 5 to rotate in the opposite direction, and when the trigger end of the micro switch 7 leaves the side of the first positioning portion 5-5, the micro switch 7 changes from the on state to the off state. After the RFID reader 4 detects the change in the state of the micro switch 7, it controls the motor 6 to stop after a certain delay to drive the cam 5 to rotate, and at this time, the limit portion 5-3 leaves the limit slot 2-1 and the second positioning portion 5-6 is at the initial position.

[0048] In order to connect the key to the key seat 2, a key ring 10 or a wire rope key ring 14 is provided at the through hole of the key seat 2, and an anti-disassembly component is designed at the connection to prevent the key user from maliciously replacing the key.

[0049] Anti-disassembly component embodiment 1: See attached Figure 9-11 A key ring 10 with an opening is provided at the through hole of the key seat 2, and an anti-disassembly component is provided at the opening of the key ring 10. The anti-disassembly component includes a base 11 and a lock 12 connected by a snap-on structure, and a lock pin 13 is provided on the base 11 to match the pin hole 10-1 at the opening of the key ring 10. A snap 12-1 is provided on the lock 12, and a trapezoidal hole 11-1 is provided on the base 11 to form a snap-on structure with the snap 12-1. Further, a snap cover 16 for closing the trapezoidal hole 11-1 is also included. The snap cover 16 is pressed into the space between the base 11 and the snap 12-1. The cooperation between the pin hole 10-1 and the lock pin 13 realizes the limit between the base 11 and the key ring 10, and the snap-on cooperation between the base 11 and the lock 12 covers the opening to prevent malicious disassembly.

[0050] Anti-disassembly component embodiment 2: See attached Figure 12-14 A wire rope keychain 14 is provided at the through hole of the key base 2, and an anti-disassembly component is provided at the connection of the wire rope keychain 14. The anti-disassembly component includes a base 11 and a lock 12 connected by a snap structure to form a threaded connection part accommodating cavity. After the base 11 and the lock 12 are connected, the threaded connection part of the wire rope keychain 14 is limited in the threaded connection part accommodating cavity, and the wire rope keychain 14 can only rotate. Two snap groups are provided on the lock 12, each group includes two snaps 12-1 located on the inner and outer sides of the wire rope keychain 14, and a trapezoidal hole 11-1 matched with the four snaps 12-1 is provided on the base 11. Further, a buckle cover 16 for closing the trapezoidal hole 11-1 is also included. The buckle cover 16 is pressed into the base 11 and the buckle 12-1.

[0051] Based on the above-mentioned key management cabinet, the present invention provides a key management method, including two steps of key retrieval and key return.

[0052] Key removal: The key user authenticates his identity through the fingerprint reader 8 or the touch screen 9. After the authentication is passed, the touch screen 9 displays the key information that can be taken under the corresponding authority (the key information status is only displayed to the personnel with the corresponding authority on the touch screen 9, and the name and location of the other keys are not visible to the personnel without authority to prevent malicious copying). The key user selects the key to be taken through the touch screen 9 and confirms it. The limit component releases the limit of the corresponding key holder 2 and prompts the key user to take it through the change of the indicator light 4-1 state and voice prompts. If the person does not take the key within a certain period of time, the limit component restores the limit of the key holder 2 and transmits the instruction that the key has not been taken to the background.

[0053] Key return: The key user authenticates the key through the fingerprint reader 8 or the touch screen 9, verifies the key selected and confirmed through the touch screen 9, and then prompts the key user to place the key holder 2 in any key access device without the key holder 2. After the limit component in the key access device limits the key holder 2, the controller on the RFID reader reads the RFID tag in the key holder 2 and sends a command to the background to confirm the key return.

[0054] The status of the above keys is only displayed on the touch screen 9 to personnel with corresponding authority, and the names, positions and other contents of the remaining keys are not visible to personnel without authority to prevent malicious copying.

[0055] For administrators or authorized personnel, there is a one-touch switch lock (i.e., the motor 6 drives the cam 5 to rotate so that the limit part on the cam 5 is in the limit state or the non-limit state). For administrators, it is more convenient to deposit or withdraw keys in batches. Key users can only operate authorized keys. If a key is missed, it will be automatically locked and recorded in the background log.

[0056] The cabinet 1 is also equipped with an emergency mechanical unlocking device to facilitate timely removal of the key when a problem occurs with the equipment.

[0057] See attached Fig.15 Based on the above key management cabinet, the present invention also provides a key management system, including a backend server A and a plurality of matching key management cabinets B, and a plurality of cascaded key management cabinets C can be arranged under each key management cabinet B. The key access authority of personnel can be set through the backend server A or the key management cabinet B, and the plurality of key management cabinets B and the cascaded key management cabinets C can be distributed in different places to facilitate personnel to access the keys.

[0058] When the network fails, the system automatically switches from networking to stand-alone operation to ensure data integrity; when the external power supply fails, it automatically switches to battery power supply mode, ensuring long-lasting battery life and stable operation.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A key management cabinet, comprising a cabinet (1), a plurality of key storage and access devices arranged in the cabinet (1), and a matching key holder (2) connected with a key and having an RFID tag, characterized in that: The key storage and access device comprises a connection seat (3) connected to the cabinet (1), an RFID reader / writer (4) fixed on the connection seat (3) and used for reading and writing the RFID tag in the key seat (2), and a limiting component for limiting the key seat (2) in the connection seat (3); The limiting assembly comprises a cam (5) and a motor (6) for driving the cam (5) to enter the limiting groove (2-1) in the key seat (2) to form a limiting fit; A micro switch (7) for detecting the rotation position of the cam (5) is provided on the RFID reader / writer (4) and located on the inner side of the cam (5); The cam (5) comprises a curved groove (5-1) matched with the micro switch (7), a limiting portion (5-3) protruding from the outer peripheral surface of the cam body (5-2), and a transition portion (5-4) located on the outer peripheral surface of the cam body (5-2) and on one side of the limiting portion (5-3). The limiting portion (5-3) is fan-shaped and has a thickness equal to that of the cam body (5-2). The transition portion (5-4) is fan-shaped and has an outer diameter greater than the diameter of the cam body (5-2) and less than or equal to the outer diameter of the limiting portion (5-3). The central angle of the transition portion (5-4) is smaller than the central angle of the limiting portion (5-3). The thickness of the transition portion (5-4) gradually changes from thin to thick until the thickness is equal to that at the junction with the limiting portion (5-3). The curved groove (5-1) starts from the intersection of the edge of the cam body (5-2) and the limiting portion (5-3), passes through the transition portion (5-4), and ends at the cam body (5-2), with both ends smoothly transitioning to the surface of the cam body (5-2). The central angle occupied by the curved groove (5-1) is greater than the sum of the central angles occupied by the limiting portion (5-3) and the transition portion (5-4); or The cam (5) comprises a cam body (5-2), a limiting portion (5-3), a first positioning portion (5-5) and a second positioning portion (5-6). The limiting portion (5-3), the first positioning portion (5-5) and the second positioning portion (5-6) are all fan-shaped and have the same thickness as the cam body (5-2). The outer diameters of the first positioning portion (5-5) and the second positioning portion (5-6) are equal and larger than the outer diameter of the limiting portion (5-3); a portion of the first positioning portion (5-5) whose outer diameter is larger than the outer diameter of the limiting portion (5-3) is used to drive the micro switch (7) from an off state to an on state; after installation, the first positioning portion (5-5) and the second positioning portion (5-6) are respectively located on two sides of the connecting seat (3).

2. The key management cabinet according to claim 1, characterized in that: A fingerprint identifier (8) and a touch screen (9) are provided on the cabinet (1).

3. The key management cabinet according to claim 1 or 2, characterized in that: A key ring (10) having an opening is provided at the through hole of the key seat (2), and an anti-disassembly component is provided at the opening of the key ring (10), the anti-disassembly component comprising a base (11) and a lock buckle (12) connected by means of a snap-fit ​​structure, and a lock pin (13) is provided on the base (11) and matches a pin hole (10-1) at the opening of the key ring (10).

4. The key management cabinet according to claim 3, characterized in that: A buckle (12-1) is provided on the lock buckle (12), and a trapezoidal hole (11-1) matching with the buckle (12-1) is provided on the base (11).

5. The key management cabinet according to claim 1 or 2, characterized in that: A wire rope keychain (14) is provided at the through hole of the key seat (2), and an anti-disassembly component is provided at the connection of the wire rope keychain (14), the anti-disassembly component comprising a base (11) and a lock buckle (12) which are connected by means of a snap-fit ​​structure to form a threaded connection portion accommodating cavity.

6. The key management cabinet according to claim 5, characterized in that: Two buckle groups are provided on the lock buckle (12), each buckle group comprising two buckles (12-1) respectively located on the inner side and the outer side of the wire rope key buckle (14), and a trapezoidal hole (11-1) matching with the four buckles (12-1) is provided on the base (11).

7. A key management system, based on the key management cabinet according to any one of claims 1 to 6, characterized in that: Includes a backend server and multiple matching key management cabinets.

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