An intelligent padlock based on internet of things technology application

Abstract

The utility model relates to intelligent lock technical field, and disclose a kind of intelligent padlock based on internet of things technology application, including lower cover and upper cover, the lower cover and upper cover are engaged to form lock box, the lock box top is equipped with first opening and second opening;And lock beam, the lock beam includes the first arm of first opening in lock box and the second arm of second opening movable installation. In prior art, to ensure that the process of locking and hanging plaque can be effectively implemented, the current common practice is that enterprises formulate strict rules and regulations, relevant personnel must be trained comprehensively combined with daily strict supervision, to achieve the purpose of preventing relevant safety accidents. At present, enterprises provide for staff are mainly traditional mechanical padlock, paper label, this way mainly relies on personnel consciously using safety lock, this intelligent padlock based on internet of things technology application solves the problem of lack of effective monitoring and tracing means for personnel not using safety lock.

Description

Technical Field

[0001] This utility model relates to the field of smart lock technology, specifically a smart padlock based on Internet of Things (IoT) technology. Background Technology

[0002] Lockout / Tagout (LOTO) is a widely used management method for preventing mechanical injuries. Specific implementation requirements are outlined in GB / T 33579-2017, "Mechanical Safety Hazardous Energy Control Methods: Lockout / Tagout." It aims to protect personnel from accidental equipment activation or energy release during equipment maintenance, repair, or other operations by isolating energy sources. Its core tools include safety locks, warning signs, and circuit breaker interlocks on safety doors. The procedure involves personnel cutting off the equipment's power supply by interlocking the safety door when opening it, locking the device preventing the door from closing, taking the key with them, and affixing a warning sign. Similarly, before opening the control cabinet door, the main power switch is turned off and locked, with the key also taken by the person, and a warning sign is affixed. These actions are intended to prevent others from accidentally closing safety doors or activating the main power switch. To ensure the effective implementation of the lockout / tagout procedure, the common practice is for companies to establish strict regulations, require relevant personnel to undergo comprehensive training, and combine this with rigorous daily supervision to prevent related safety accidents. Currently, most companies provide employees with traditional mechanical padlocks and paper tags. This method relies primarily on employees' self-discipline in using safety locks, lacking effective monitoring and traceability for non-use. GB / T33579-2017 "Mechanical Safety Hazardous Energy Control Methods: Locking / Tagging" states: "Locking / tagging is a common method for controlling hazardous energy, but with technological advancements, users may need to adopt different methods and technologies to protect personnel safety." In practice, some use smart devices, such as smart locks, to control personnel check-in (the check-in described in this invention includes using devices to collect RFID cards, ID cards, fingerprint features, facial features, etc., to identify personnel) and record data. These types of smart methods provide better supervision and traceability to some extent, but cannot fully meet the management requirements of lock-and-tag systems. This utility model relates to a smart lock-and-tag padlock based on Internet of Things (IoT) technology, which can be combined with a management system for more comprehensive management of lock-and-tag systems. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an intelligent padlock based on Internet of Things (IoT) technology. It has the advantages of controlling, monitoring, and tracing the use of locks. In the existing technology, the locks provided by enterprises to employees are mostly traditional mechanical padlocks and paper signs. This method mainly relies on people's self-discipline in using security locks. This intelligent padlock based on IoT technology solves the problem of the lack of effective monitoring and tracing methods for people's failure to use security locks.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A smart padlock based on Internet of Things technology includes a lower cover plate and an upper cover plate, the lower cover plate and the upper cover plate are fastened together to form a lock box, and the top of the lock box is provided with a first opening and a second opening; The lock includes a lock beam comprising a first arm movably mounted within a first opening of the lock housing and a second arm within a second opening. In the locked position, the second arm remains within the second opening of the lock housing, and in the unlocked position, the second arm can be moved out of the second opening of the lock body. A micro switch is provided inside the lock housing below the second opening, and an electromagnetic lock is also provided inside the lock housing, the bolt of which extends into the second opening.

[0005] The beneficial effects of this utility model are: 1) This smart padlock, based on IoT technology, achieves full-process monitoring, control, and traceability of locking / unlocking operations through the collaborative design of micro switches, electromagnetic locks, communication modules, and contactless identification and communication modules. The operator's identity information is identified via the contactless identification and communication module, and the operation time and lock status (lock / unlock) can be uploaded to an external server in real time via 4G / 5G or WIFI modules. Managers can remotely view the data, solving the problem of traditional mechanical padlocks relying on personnel self-discipline and lacking effective monitoring methods, thus effectively ensuring personnel safety during equipment maintenance and repair.

[0006] 2) This smart padlock, based on IoT technology, enhances security management and risk prediction capabilities for the locking and tagging process by transmitting reverse commands and implementing closed-loop control of the electromagnetic lock via an external server. The external server can send reverse control commands to the padlock circuit board via a 4G / 5G module or a Wi-Fi module based on preset management rules or real-time data feedback. Furthermore, if the contactless identification communication module detects an unauthorized attempt to unlock, the server can disable the padlock's unlocking function in real time. This reverse control logic forms a closed-loop management system of "server proactive management - padlock precise response - real-time status feedback," further ensuring the reliability of energy source isolation during equipment maintenance and repair, and minimizing the risk of safety accidents caused by human error or malicious violations.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, a retaining spring groove is provided on the first arm, and a retaining spring is fixedly connected in the retaining spring groove. A locking beam spring is sleeved on the outside of the first arm, and the top of the locking beam spring abuts against the retaining spring. A spring sleeve located below the first opening is fixedly connected to the lower cover plate by a tube clamp. The lower end of the first arm and the locking beam spring are both sleeved inside the spring sleeve. A limiting structure is provided on the lower cover plate at the bottom of the spring sleeve, and the bottom of the locking beam spring abuts against the limiting structure.

[0009] The beneficial effects of adopting the above-mentioned further solution are that, through the abutment cooperation with the retaining spring, the first arm of the lock beam can automatically spring up and reset after unlocking, eliminating the need for manual reset of the lock beam and realizing the convenient operation of "unlocking and springing open"; the spring sleeve is fixed to the lower cover plate by the tube clamp, which can provide stable axial guidance for the first arm of the lock beam and the lock beam spring, preventing the lock beam from shifting or shaking when moving up and down, ensuring a smooth locking / unlocking process, and extending the service life of the core components of the lock.

[0010] Furthermore, a locking groove is provided on the second arm, and in the locked position, the bolt of the electromagnetic lock is engaged inside the locking groove.

[0011] The beneficial effect of adopting the above-mentioned further solution is that, in the locked state, the bolt of the electromagnetic lock is precisely engaged in the locking groove of the second arm of the lock beam, forming an "embedded" locking structure, which can effectively restrict the degree of freedom of movement of the second arm of the lock beam and prevent unlocking.

[0012] Furthermore, a circuit board is provided inside the lock box, and the micro switch and electromagnetic lock are both electrically connected to the circuit board.

[0013] The beneficial effect of adopting the above-mentioned further solution is that the circuit board, as the "control center", realizes the linkage between the micro switch, the electromagnetic lock and the server. When the micro switch is triggered, it can transmit the lock beam status signal to the circuit board and send it to the server. When the unlocking conditions are met, the server issues a command to control the electromagnetic lock to be powered on through the circuit board. Then the lock beam pops out and the micro switch is then disconnected, ensuring that each component responds in a timely manner and the logic is accurate, laying the hardware foundation for the subsequent data interaction of the Internet of Things module.

[0014] Furthermore, a battery pack located below the micro switch and electromagnetic lock is fixedly connected to the lower cover plate, and a display screen is fixedly connected to the front of the upper cover plate. The padlock is also equipped with an antenna, and the battery pack, antenna, and display screen are all electrically connected to the circuit board.

[0015] The beneficial effects of adopting the above-mentioned further solutions are that the battery pack provides independent and continuous power support for core electrical components such as micro switches and electromagnetic locks, freeing the padlock from dependence on external power supply and enabling flexible use next to devices without power supply interfaces, greatly expanding the application scenarios; the display screen fixed on the front of the top cover can intuitively display user information including name, phone number, etc.

[0016] Furthermore, a non-contact identification and communication module connected to the circuit board is fixedly connected to the inner wall of the upper cover plate. The non-contact identification and communication module includes a high-frequency RFID module and a low-frequency RFID module.

[0017] The beneficial effects of adopting the above-mentioned further solutions are that the low-frequency RFID module supports close-range identity verification, such as operators swiping RFID cards to sign in or unlock; the high-frequency RFID module can identify RFID tags at a long distance, so as to locate the padlock.

[0018] Furthermore, the circuit board includes a communication module, an MCU main control module, and an IoT card. The communication module communicates with an external server via signals.

[0019] The advantages of adopting the above-mentioned further solutions are that the communication module on the circuit board ensures real-time connection between the lock and the external server; the MCU main control module on the circuit board can process signals from multiple components and control the automated process of unlocking the lock according to the set rules, without the need for manual intervention, thus improving the ease of operation; and the administrator can monitor the use of the lock and trace its usage records through the server.

[0020] Furthermore, the top of the latch of the electromagnetic lock is provided with a non-planar structure with a guiding function, and the bottom area is provided with a flat structure with a stable limiting function.

[0021] The beneficial effects of adopting the above-mentioned further solution are that, through the non-planar structure design at the top of the electromagnetic lock tongue, during locking, the second arm of the lock beam can automatically push open the electromagnetic lock tongue through the non-planar structure during the downward pressing process, without the need for a circuit board to control the retraction of the electromagnetic lock; locking can be completed simply by pressing the lock beam. The flat design at the bottom of the electromagnetic lock tongue ensures stability after locking. In the locked state, the flat structure fits tightly against the inner wall of the locking groove of the second arm of the lock beam, preventing unlocking. This "convenient locking and secure locking" design not only improves operational efficiency but also enhances locking reliability, meeting the high reliability requirements of locks in industrial scenarios.

[0022] Furthermore, a camera is installed inside the upper cover plate, and the camera is electrically connected to the circuit board.

[0023] The beneficial effect of adopting the above-mentioned further solution is that, by setting up a camera, facial information can be collected, and the information collected by the camera is transmitted to the circuit board via a signal.

[0024] Furthermore, the camera is electrically connected to the face recognition module, and the face recognition module is electrically connected to the circuit board.

[0025] The beneficial effect of adopting the above-mentioned further solution is that, by setting up a face recognition module, after the camera collects face information, it transmits the information to the face recognition module through a signal. Then, the face recognition module transmits the data to the server through the circuit board. The server analyzes the data and can then accurately verify the operator's information. Attached Figure Description

[0026] Figure 1 This is an exploded view of the structure of this utility model; Figure 2 This is a schematic diagram of the lock beam structure of this utility model; Figure 3 This is a schematic diagram of the structure of this utility model in the locked state; Figure 4 This is a schematic diagram of the structure of this utility model in the unlocked state.

[0027] In the diagram: 1. Lower cover plate; 2. Battery pack; 3. Sensor; 4. Locking beam spring; 5. Snap ring; 6. Locking beam; 61. First arm; 62. Second arm; 63. Locking groove; 64. Snap ring groove; 7. Electromagnetic lock; 8. Spring sleeve; 9. Pipe clamp; 10. Circuit board; 11. Antenna; 12. Display screen; 13. Upper cover plate; 14. Low-frequency RFID module; 15. High-frequency RFID module; 16. Camera; 17. Face recognition module. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1, by Figure 1-4 This invention discloses a smart padlock based on Internet of Things (IoT) technology. The padlock comprises a lower cover plate 1 and an upper cover plate 13, which are interlocked to form a lock box. The upper cover plate 13 is made of engineering plastic. A first opening and a second opening are provided at the top of the lock box. The lock beam 6 includes a first arm 61 movably mounted within a first opening of the lock housing and a second arm 62 within a second opening. In the locked position, the second arm 62 remains within the second opening of the lock housing, and in the unlocked position, the second arm 62 can be moved out of the second opening of the lock body. A micro switch is provided inside the lock housing below the second opening, and an electromagnetic lock 7 electrically connected to the micro switch is also provided inside the lock housing. The bolt of the electromagnetic lock 7 extends into the second opening, and a locking groove 63 is provided on the second arm 62. In the locked position, the bolt of the electromagnetic lock 7 engages with the locking groove 63. The top is provided with a non-planar structure with guiding function, and the bottom area is provided with a flat structure with stable limiting function. During the locking process of the second arm 62, the top slope of the lock tongue abuts against its bottom. The first arm 61 is provided with a retaining spring groove 64, and a retaining spring 5 is fixedly connected in the retaining spring groove 64. The first arm 61 is sleeved with a locking beam spring 4, and the top of the locking beam spring 4 abuts against the retaining spring 5. The lower cover plate 1 is fixedly connected with a spring sleeve 8 located below the first opening through a tube clamp 9. The lower end of the first arm 61 and the locking beam spring 4 are both sleeved inside the spring sleeve 8, and the bottom of the locking beam spring 4 abuts against the spring sleeve 8.

[0030] In Example 2, based on Example 1, a battery pack 2 is fixedly connected to the lower cover plate 1, located below the micro switch and electromagnetic lock 7. A circuit board 10 is fixedly connected to the front of the battery pack 2. The circuit board 10 includes communication modules such as a 4G module, a 5G module, and a WIFI module, an MCU main control module, and a power supply interface; the communication modules communicate with an external server via signals. The IoT card includes a 4G IoT card or a 5G IoT card, and the IoT card installation method includes plug-in, surface mount, and embedded types. The battery pack 2, micro switch, and electromagnetic lock 7 are all electrically connected to the circuit board 10. A contactless identification communication module is fixedly connected to the inner wall of the upper cover plate 13. The contactless identification communication module includes a high-frequency RFID module 15 and a low-frequency RFID module 14. When an RFID card is swiped, the near-field identification module reads the RFID card information to complete check-in or check-out. When the unlocking conditions set by the system are met, the system sends an unlocking command. The high-frequency RFID module 15 is used to read information from nearby RFID tags. The read information is processed by the circuit board 10 and then sent to the back-end server through the communication module on the circuit board 10. By identifying RFID tag information at different locations through the ultra-high frequency RFID module 15, the server can determine and confirm the location of the padlock. A display screen 12 is fixedly connected to the front of the top cover 13. An antenna 11 is provided on the top cover 13. The antenna 11 includes an external antenna or an internal antenna. The antenna 11, the display screen 12, the contactless identification communication module, and the circuit board 10 are electrically connected.

[0031] In embodiment three, a camera 16 is installed inside the upper cover plate 13, and the camera 16 is electrically connected to the circuit board 10. By setting up the camera 16, facial information can be captured, and the captured information is transmitted to the circuit board 10 via a signal. The camera is electrically connected to a face recognition module 17, and the face recognition module 17 is electrically connected to the circuit board 10. By setting up the face recognition module 17, after the camera 16 captures facial information, it transmits the captured information to the face recognition module 17 via a signal. The face recognition module 17 then transmits the data to the server via the circuit board 10. The server analyzes the data and can then accurately verify the operator's information.

[0032] Working principle: In use, the locking beam 6 is pressed into the two openings formed by the upper cover plate 13 and the lower cover plate 1 after assembly. During the pressing process, the locking beam 6 will first squeeze the locking tongue of the electromagnetic lock 7, causing the locking tongue to retract into the body of the electromagnetic lock 7. As the locking beam 6 is pressed in, the locking tongue of the battery iron 7 will pop out and extend into the locking groove of the locking beam 6 due to the pushing force of its own spring, preventing the locking beam 6 from popping out due to the pushing force of the locking beam spring 4. When the locking beam 6 reaches the locking position, it will press the micro switch roller, so that the micro switch is in the "off" state. The back-end server can read the "off" state of the micro switch through 4G, 5G or WIFI signals. When an unlocking command is received, the electromagnetic lock 7 is energized, and the latch of the electromagnetic lock 7 retracts into its body and disengages from the locking groove of the lock beam 6, thus releasing the locking of the lock beam 6. The lock beam 6 pops out under the pushing force of the lock beam spring 4, and at the same time releases the pressure on the micro switch roller. The micro switch is switched to the "on" state, and the back-end server can read the "on" state of the micro switch through 4G, 5G or WIFI signals.

[0033] In summary, this smart padlock based on IoT technology achieves the goal of monitoring and tracing the use of security locks. Currently, to ensure the effective implementation of the locking and tagging process, the common practice is for companies to establish strict rules and regulations, requiring relevant personnel to undergo comprehensive training combined with rigorous daily supervision to prevent related safety incidents. Currently, companies mostly provide employees with traditional mechanical padlocks and paper tags, relying primarily on employees' self-discipline in using security locks. This smart lock solves the problem of lacking effective monitoring and tracing methods for employees not using security locks.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart padlock based on Internet of Things (IoT) technology, comprising a lower cover plate (1) and an upper cover plate (13), wherein the lower cover plate (1) and the upper cover plate (13) are fastened together to form a lock box, and the top of the lock box is provided with a first opening and a second opening; And a lock beam (6), said lock beam (6) comprising a first arm (61) movably mounted within a first opening of the lock housing and a second arm (62) within a second opening, wherein in the locked position the second arm (62) is held within the second opening of the lock housing, and in the unlocked position the second arm (62) is movable out of the second opening of the lock body; characterized in that: The lock box is equipped with a sensor (3) located below the second opening that can sense the axial position of the bottom of the first arm (61). The lock box is also equipped with an electromagnetic lock (7), the latch of which extends into the second opening.

2. The smart padlock based on Internet of Things (IoT) technology according to claim 1, characterized in that: The first arm (61) is provided with a retaining spring groove (64), and a retaining spring (5) is fixedly connected in the retaining spring groove (64). A locking beam spring (4) is sleeved on the outside of the first arm (61). The top of the locking beam spring (4) abuts against the retaining spring (5). A limiting structure is provided on the lower cover plate (1), and the bottom of the locking beam spring (4) abuts against the limiting structure.

3. The smart padlock based on Internet of Things (IoT) technology according to claim 2, characterized in that: The second arm (62) has a locking groove (63). In the locked position, the latch of the electromagnetic lock (7) is engaged inside the locking groove (63).

4. The smart padlock based on Internet of Things (IoT) technology according to claim 1, characterized in that: The sensor (3) is a micro switch, and a circuit board (10) is provided inside the lock box. The micro switch and the electromagnetic lock (7) are both electrically connected to the circuit board (10).

5. A smart padlock based on Internet of Things (IoT) technology according to claim 4, characterized in that: The lower cover plate (1) is fixedly connected to a battery pack (2) located below the micro switch and electromagnetic lock (7). The upper cover plate (13) is fixedly connected to a display screen (12). The padlock is also equipped with an antenna (11). The battery pack (2), antenna (11) and display screen (12) are all electrically connected to the circuit board (10).

6. A smart padlock based on Internet of Things (IoT) technology according to claim 4, characterized in that: The inner wall of the upper cover plate (13) is fixedly connected to a non-contact identification and communication module that is electrically connected to the circuit board (10). The non-contact identification and communication module includes a high-frequency RFID module (15) and a low-frequency RFID module.

7. A smart padlock based on Internet of Things (IoT) technology according to claim 4, characterized in that: The circuit board (10) includes a communication module, an MCU main control module and an IoT card. The communication module communicates with an external server via signals.

8. A smart padlock based on Internet of Things (IoT) technology according to claim 3, characterized in that: The top of the latch of the electromagnetic lock (7) is provided with a non-planar structure with guiding function, and its bottom area is provided with a flat structure with stable limiting function.

9. A smart padlock based on Internet of Things (IoT) technology according to claim 5, characterized in that: The upper cover plate (13) is equipped with a camera (16), which is electrically connected to the circuit board (10).

10. A smart padlock based on Internet of Things (IoT) technology according to claim 9, characterized in that: The camera is electrically connected to the face recognition module (17), and the face recognition module (17) is electrically connected to the circuit board (10).

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