Passive electronic lock key management device
By integrating components such as pressure sensors, connectors, and control circuit boards into the key management device, the problems of charging and data synchronization in passive electronic lock key management are solved, enabling real-time key management and secure use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2026-03-03
AI Technical Summary
Existing key management devices cannot effectively charge and synchronize data for passive electronic locks, nor can they track the use and return of keys.
Design a passive electronic lock key management device, including a base box, a key card holder and a control circuit board, equipped with a pressure sensor, connector, OLED screen, keyboard, card reader, fingerprint sensor, etc. The control circuit board realizes key charging, data transmission and user identification, and synchronizes data with the server.
It enables real-time charging and data synchronization of keys, ensuring that only authorized users can use the keys, preventing keys from being removed before they are charged or synchronized, and improving the security and efficiency of key management.
Smart Images
Figure CN223966917U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of key management technology, and more specifically, to a passive electronic lock key management device. Background Technology
[0002] When multiple keys need to be centrally managed, current key management systems can identify whether a key is placed in the key management device and can track and record key usage. However, they cannot track and record who took the key from the key management device. Furthermore, for passive electronic locks, which require key power and unlocking information, the key management device's ability to track and record key usage alone cannot meet the charging needs of the keys or the data synchronization between the server and the keys. Utility Model Content
[0003] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a passive electronic lock key management device to overcome the defects in the prior art.
[0004] To achieve the above objectives, this utility model provides a passive electronic lock key management device. The passive electronic lock key management device includes a base box, key card holders, and a control circuit board. Several key card holders are fixedly connected to the front side of the base box, and the control circuit board is fixedly connected inside the base box and connected to a server. Each key card holder has a pressure sensor on its back panel to sense whether a key is inside the key card holder. Each key card holder has a connector at its bottom to connect to the key and provide charging and data transmission for the key. The pressure sensor is electrically and signal-connected to the control circuit board, and the control circuit board is electrically and signal-connected to the connector, so that when the pressure sensor detects a key inside the key card holder, the control circuit board controls the connector to charge the key or transmit data. The top panel of the base box... The device is equipped with an OLED screen, keyboard, card reader, and fingerprint sensor, as well as indicator lights corresponding to each key card slot. The keyboard, card reader, and fingerprint sensor are electrically and signal-connected to the control circuit board, allowing users to input their user ID and password via the keyboard, their work badge data via the card reader, or their fingerprint data via the fingerprint sensor, with the control circuit board confirming the user's access to the key. The indicator lights are also electrically and signal-connected to the control circuit board, ensuring that when the control circuit board confirms the user's access to the key, and the key card slot has completed charging or the last data transmission, the control circuit board synchronizes the user's assigned tasks and data from the server to the key in that key card slot, and illuminates the corresponding indicator light to prompt the user to retrieve the key.
[0005] The above technical solution involves installing multiple key slots on the front of the base box to charge and transmit data to the keys placed inside. A keyboard, card reader, and fingerprint sensor are installed on the top plate of the base box to identify the user borrowing the key. The control circuit board then confirms the user's authorization to use the key. When a key slot completes charging or data transmission, the control circuit board sends the user's task and data to the key in that slot. After data transmission is complete, indicator light 17 illuminates green, prompting the user to retrieve the key. By identifying borrowing users, key lending can be recorded for convenient management. Furthermore, charging and data transmission of the keys in the slots allows for real-time synchronization of user data to any key, enabling authorized users to retrieve and use any key, facilitating key management and usage.
[0006] As a further explanation of the passive electronic lock key management device of this utility model, preferably, an electromagnetic controller is installed on the back side of the back plate of each key card holder. The electromagnetic controller is connected to the latch structure, which is set in the key card holder to perform unlocking or locking actions on the key. The electromagnetic controller is electrically and signal connected to the control circuit board, so that when the control circuit board confirms the user's access rights to the key and the key card holder has completed charging or data transmission, the control circuit board controls the electromagnetic controller corresponding to the key card holder to open the latch structure to unlock the key; when the pressure sensor senses that the key is in the key card holder, the control circuit board controls the electromagnetic controller corresponding to the key card holder to close the latch structure to lock the key.
[0007] The above technical solution, by setting an electromagnetic controller to control the latch structure to perform unlocking or locking actions on the key in the key card holder, can prevent the key from being taken out before the charging is finished or the data transmission is finished, thus preventing the key from being lost due to the key being taken without user identification.
[0008] As a further explanation of the passive electronic lock key management device of this utility model, preferably, the connector is configured as a magnetic contact, and a metal contact matching the magnetic contact is provided at the bottom of the key, so that the magnetic contact of the connector and the metal contact of the key are magnetically connected to each other, thereby increasing communication and reliability.
[0009] With the above technical solution, when returning the key, the key is placed in the key card holder, and the metal contacts of the key are magnetically connected to the magnetic contacts of the connector, realizing automatic alignment for fast charging and data transmission, and increasing the reliability of communication.
[0010] As a further explanation of the passive electronic lock key management device of this utility model, preferably, a network interface is installed on the back plate of the base box. The network interface is electrically and signal connected to the control circuit board so that it can be wired to the network and connected to the server.
[0011] The above technical solution allows for network connection via a network interface, facilitating connection to a server and enabling real-time synchronization of server-issued tasks and user data to the key placed in the key card holder, thus facilitating the updating and upgrading of the key's firmware.
[0012] As a further explanation of the passive electronic lock key management device of this utility model, preferably, a power interface is installed on the back plate of the base box. The power interface is electrically connected and signal connected to the control circuit board so that power can be turned on through the power interface.
[0013] The above technical solution allows for direct connection to a power source via a power cord through the power interface, making it convenient to use.
[0014] As a further explanation of the passive electronic lock key management device of this utility model, preferably, a USB interface is installed on the back plate of the base box. The USB interface is electrically and signal connected to the control circuit board so as to enable power supply through the USB interface.
[0015] The above technical solution allows for convenient power connection via a USB cable through a USB interface.
[0016] As a further explanation of the passive electronic lock key management device of this utility model, preferably, an emergency port is provided on the back plate of the base box, and a cover plate is detachably connected to the emergency port so that the key card holder can be manually opened by removing the cover plate.
[0017] With the above technical solution, in the event of a power outage or malfunction, it may be impossible to remove the locked key from the key card holder. In this case, the cover can be removed from the back panel of the base box, and then the electromagnetic controller of the key card holder can be manually operated from the emergency port to open the latch structure, so that the key can be easily removed and used in an emergency.
[0018] The beneficial effects of this utility model are as follows: This utility model installs multiple key card slots on the front side of the base box, charging and transmitting data to the keys placed in the slots. A keyboard, card reader, and fingerprint sensor are installed on the top plate of the base box to identify the user borrowing the key. The control circuit board then confirms whether the user has the right to use the key. When a key card slot completes charging or data transmission, the control circuit board sends the user's task and user data to the key in that slot. After data transmission is complete, indicator light 17 illuminates green, prompting the user to retrieve the key. By identifying the user who borrows the key, the system records the borrowed keys, facilitating key management. Furthermore, by charging and transmitting data to the keys in the slots, user data can be synchronized in real time to any key, allowing authorized users to retrieve and use any key, thus simplifying key management and usage. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the passive electronic lock key management device of this utility model;
[0020] Figure 2 This is a front view of the passive electronic lock key management device of this utility model;
[0021] Figure 3 This is a schematic diagram of the back of the passive electronic lock key management device of this utility model;
[0022] Figure 4 This is a structural block diagram of the passive electronic lock key management device of this utility model.
[0023] The diagram shows: base box 1, top plate 11, back plate 12, OLED screen 13, keyboard 14, card reader 15, fingerprint sensor 16, indicator light 17, network interface 18, power interface 19, USB interface 110, emergency port 111, key card holder 2, pressure sensor 21, connector 22, electromagnetic controller 23, and control circuit board 3. Detailed Implementation
[0024] In order to further understand the structure, features and other objectives of this utility model, the following detailed description is provided in conjunction with the accompanying drawings. The embodiments described in the drawings are only used to illustrate the technical solutions of this utility model and are not intended to limit this utility model.
[0025] In the first embodiment of this utility model, a passive electronic lock key management device is provided, including a base box 1, key card holders 2, and a control circuit board 3. Several key card holders 2 are fixedly connected to the front side of the base box 1, and the control circuit board 3 is fixedly connected inside the base box 1 and connected to a server 4 via the control circuit board 3. Figure 1 The passive electronic lock key management device shown has four key card holders 2 installed on the front side of a base box 1.
[0026] like Figure 2 As shown, a pressure sensor 21 is provided on the back panel of each key card holder 2 to sense whether the key is inside the key card holder 2. A connector 22 (not shown) is provided at the bottom of each key card holder 2 to connect to the key and provide charging and data transmission for the key. The pressure sensor 21 is electrically and signal connected to the control circuit board 3, and the control circuit board 3 is electrically and signal connected to the connector 22.
[0027] When the key is inserted into the key holder 2, it fully presses against the pressure sensor 21 on the back plate of the key holder 2. At this time, the pressure sensor 21 detects that the key is properly positioned in the key holder 2 and generates an electrical signal output to the control circuit board 3. When the key is fully positioned in the key holder 2, the metal contacts at the bottom of the key connect with the connector 22 at the bottom of the key holder 2. After receiving the electrical signal from the pressure sensor 21, the control circuit board 3 can control the connector 22 to charge the key or transmit data. The key's operation record data and power data are transmitted to the control circuit board 3 through the connector 22 and uploaded to the server. The control circuit board 3 controls the charging or stopping of the key based on the key's power data. The server sets the lower limit for charging the key and the upper limit for stopping charging.
[0028] An OLED screen 13, a keyboard 14, a card reader 15, and a fingerprint sensor 16 are installed on the top plate 11 of the base box 1, along with indicator lights 17 corresponding to each key card slot 2. The OLED screen 13, keyboard 14, card reader 15, and fingerprint sensor 16 are electrically and signal-connected to the control circuit board 3, respectively, to enable user identification by inputting the user's ID number and password via the keyboard 14, the user's work badge data via the card reader 15, or the user's fingerprint data via the fingerprint sensor 16. The control circuit board 3 is electrically and signal-connected to the indicator lights 17, allowing the control circuit board 3 to control the indicator lights 17 to illuminate in different ways.
[0029] When retrieving a key from key card slot 2, the user is first identified by selecting one of the following methods: inputting the user's ID and password via keyboard 14, inputting the user's work badge data via card reader 15, or inputting the user's fingerprint data via fingerprint sensor 16. The control circuit board 3 then confirms whether the user has the right to use the key. When the control circuit board 3 confirms the user has the right to use the key, it checks the working status of all key card slots 2. If the key card slot 2 is charging the key or transmitting data, the key cannot be retrieved for use. In this case, the control circuit board 3 can control indicator light 17 to flash green. Once the key card slot 2 has completed data transmission and charging, the key can be retrieved for use. In this case, the control circuit board 3 can control indicator light 17 to remain off, indicating that the key card slot 2 is in an idle state. When the control circuit board 3 confirms that a particular key card slot 2 is in an idle state, the server issues the task and user data for that user and synchronizes it to the key in that key card slot 2. After the data transmission is complete, the control circuit board 3 controls indicator light 17 to flash green, prompting the user to retrieve the key for use. Therefore, when the control circuit board 3 confirms that the user has permission to use the key, and the key card holder 2 has finished charging or the last data transmission is in an idle state, the control circuit board 3 controls the circuit of the key card holder 2 to synchronize the user data to the corresponding key in real time. After the data synchronization is completed, the corresponding indicator light 17 is kept on a solid green light to prompt the user to take out the key. Because the key placed in the key card holder is charged and data is transmitted, the user's data can be synchronized to any key in real time, allowing the authorized user to take out any key for use, which facilitates the management and use of keys.
[0030] In the second embodiment of this utility model, an electromagnetic controller 23 is installed on the rear side of the back plate of each key card holder 2. The electromagnetic controller 23 is connected to a latching structure, which is disposed in the key card holder 2 to perform unlocking or locking actions on the key. The electromagnetic controller 23 is electrically and signal-connected to the control circuit board 3. When the control circuit board 3 confirms the user's access rights to the key and the key card holder 2 has completed charging or data transmission, the control circuit board 3 controls the electromagnetic controller 23 corresponding to the key card holder 2 to open the latching structure to unlock the key. When the pressure sensor 21 senses that the key is in the key card holder 2, the control circuit board 3 controls the electromagnetic controller 23 corresponding to the key card holder 2 to close the latching structure to lock the key. The latching structure can be any structure in the prior art capable of performing unlocking or locking actions on the key placed in the key card holder 2.
[0031] Before the key is removed from the key card holder 2, it cannot be directly removed as it is locked inside. The user needs to first verify their identity. Then, the control circuit board 3 confirms that the user has permission to use the key. The control circuit board 3 then checks the working status of all key card holders 2. When the control circuit board 3 confirms that the working status of a certain key card holder 2 is idle, the server sends the task and user data of the user with that permission to the key card holder 2 and synchronizes it to the key in that key card holder 2. After the data transmission is completed, the control circuit board 3 controls the electromagnetic controller 23 corresponding to that key card holder 2 to open the latch structure, thereby unlocking the key in the key card holder 2. At the same time, the indicator light 17 corresponding to that key card holder 2 turns green, prompting the user to remove the key for use.
[0032] When returning the key, simply place the key into the empty key slot 2. When the pressure sensor 21 of the key slot 2 senses that the key is in the key slot 2, the control circuit board 3 controls the electromagnetic controller 23 corresponding to the key slot 2 to lock the key.
[0033] This embodiment uses an electromagnetic controller to control the latch structure to perform unlocking or locking actions on the key in the key slot. This can prevent the key from being removed before charging or data transmission is finished, thus preventing the key from becoming unusable, and also prevent the key from being lost due to being taken away without user identification.
[0034] In the third embodiment of this utility model, preferably, the connector 22 is configured as a magnetic contact, and a metal contact matching the magnetic contact is provided at the bottom of the key, so that the magnetic contact of the connector 22 is magnetically connected to the metal contact of the key to increase communication and reliability.
[0035] In this embodiment, when returning the key, the key is placed in the key card holder 2, and the metal contacts of the key are magnetically connected to the magnetic contacts of the connector 22, realizing automatic alignment for fast charging and data transmission, and increasing the reliability of communication.
[0036] In the fourth embodiment of this utility model, as Figure 3 As shown, a network interface 18 is installed on the back plate 12 of the base box 1. The network interface 18 is electrically and signal connected to the control circuit board 3, enabling a wired connection to the network and to the server 4. The network interface 18 allows for easy connection to the server 4, facilitating the real-time synchronization of tasks and user data issued by the server 4 to the key placed in the key card holder 2, enabling updates and upgrades to the key's firmware. The control circuit board 3 integrates a communication module for wired connection to the network interface 18, or an integrated wireless communication module for wireless data transmission with the server 4.
[0037] In the fifth embodiment of this utility model, as Figure 3 As shown, a power interface 19 is installed on the back plate 12 of the base box 1. The power interface 19 is electrically and signal connected to the control circuit board 3 to enable power supply through the power interface 17. The power interface 17 allows for direct connection to a power source via a power cord, facilitating use.
[0038] In the sixth embodiment of this utility model, as Figure 3 As shown, a USB interface 110 is installed on the back panel 12 of the base box 1. The USB interface 110 is electrically and signal connected to the control circuit board 3 to enable power supply via the USB interface 110. Power can be connected via a USB cable through the USB interface 110 for convenient use.
[0039] In the seventh embodiment of this utility model, an emergency port is provided on the back plate 12 of the base box 1, and a cover plate 111 is detachably connected to the emergency port so that the key card holder 2 can be manually opened by removing the cover plate 111. Figure 3 The cover plate 111 shown is connected to the emergency port by screws. In the event of a power outage or malfunction, it may be impossible to remove the locked key from the key holder 2. In this case, the cover plate 111 can be removed from the back plate 12 of the base box 1, and then the electromagnetic controller 23 of the key holder 2 can be manually operated from the emergency port to open the latch structure, so as to facilitate the removal and use of the key in an emergency.
[0040] The control circuit board 3 used in this utility model integrates conventional modules such as a controller module, fingerprint recognition module, card reader module, communication module, and power supply module, enabling the mechanical and electrical structures of the aforementioned passive electronic lock key management device to achieve the corresponding functions.
[0041] It should be stated that the above-described utility model content and specific embodiments are intended to demonstrate the practical application of the technical solution provided by this utility model, and should not be construed as limiting the scope of protection of this utility model. Those skilled in the art can make various modifications, equivalent substitutions, or improvements within the spirit and principles of this utility model. The scope of protection of this utility model is determined by the appended claims.
Claims
1. A passive electronic lock key management device, characterized in that, The passive electronic lock key management device includes a base box (1), key card holders (2), and a control circuit board (3). Several key card holders (2) are fixedly connected to the front side of the base box (1), and the control circuit board (3) is fixedly connected inside the base box (1) and connected to the server (4) through the control circuit board (3); wherein, A pressure sensor (21) is provided on the back plate of each key card holder (2) to sense whether the key is inside the key card holder (2); a connector (22) is provided at the bottom of each key card holder (2) to connect to the key and provide charging and data transmission for the key; the pressure sensor (21) is electrically and signal connected to the control circuit board (3), and the control circuit board (3) is electrically and signal connected to the connector (22) so that when the pressure sensor (21) senses that the key is inside the key card holder (2), the control circuit board (3) controls the connector (22) to charge or transmit data to the key; An OLED screen (13), a keyboard (14), a card reader (15), and a fingerprint sensor (16) are installed on the top plate (11) of the base box (1), as well as indicator lights (17) corresponding to each key card holder (2); among which, The keyboard (14), card reader (15) and fingerprint sensor (16) are electrically and signal connected to the control circuit board (3) respectively, so that the user number and password can be entered through the keyboard (14), the user's work card data can be entered through the card reader (15), or the user's fingerprint data can be entered through the fingerprint sensor (16), and the control circuit board (3) can confirm the user's access rights to the key. The indicator light (17) is electrically and signal connected to the control circuit board (3) so that when the control circuit board (3) confirms the user's permission to use the key and the key card holder (2) has finished charging or the last data transmission, the control circuit board (3) controls the synchronization of the user's task and user data issued by the server (4) to the key in the key card holder (2) and controls the indicator light (17) corresponding to the key card holder (2) to light up to prompt the user to take out the key; An electromagnetic controller (23) is installed on the back side of the back plate of each key card holder (2). The electromagnetic controller (23) is connected to the latch structure. The latch structure is set on the key card holder (2) to perform unlocking or locking actions on the key. The electromagnetic controller (23) is electrically and signal connected to the control circuit board (3) so that when the control circuit board (3) confirms the user's right to use the key and the key card holder (2) has completed charging or data transmission, the control circuit board (3) controls the electromagnetic controller (23) corresponding to the key card holder (2) to open the latch structure to unlock the key. When the pressure sensor (21) senses that the key is in the key card holder (2), the control circuit board (3) controls the electromagnetic controller (23) corresponding to the key card holder (2) to close the latch structure to lock the key.
2. The passive electronic lock key management device as described in claim 1, characterized in that, The connector (22) is configured as a magnetic contact, and a metal contact matching the magnetic contact is provided at the bottom of the key, so that the magnetic contact of the connector (22) and the metal contact of the key are magnetically connected to each other to increase communication and reliability.
3. The passive electronic lock key management device as described in claim 1, characterized in that, A network interface (18) is installed on the back plate (12) of the base box (1). The network interface (18) is electrically and signal connected to the control circuit board (3) so that it can be wired to the network and connected to the server (4) through the network interface (18).
4. The passive electronic lock key management device as described in claim 1, characterized in that, A power interface (19) is installed on the back plate (12) of the base box (1). The power interface (19) is electrically and signal connected to the control circuit board (3) so that power can be turned on through the power interface (19).
5. The passive electronic lock key management device as described in claim 1, characterized in that, A USB interface (110) is installed on the back plate (12) of the base box (1). The USB interface (110) is electrically and signal connected to the control circuit board (3) so that power can be turned on through the USB interface (110).
6. The passive electronic lock key management device as described in claim 1, characterized in that, An emergency port is provided on the back plate (12) of the base box (1), and a cover plate (111) is detachably connected to the emergency port so that the key card holder (2) can be manually opened by removing the cover plate (111).