An automatic unlocking and locking method for intelligent cabinets combining mechanical and digital technologies.

By combining digital passwords, biometrics, and intelligent decision-making, the automatic locking and unlocking method of smart cabinets solves the problem of insufficient security, realizes multi-level authentication and real-time monitoring, and improves security and user experience.

CN122135463APending Publication Date: 2026-06-02NANTIAN DIGITAL (YUNNAN) TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANTIAN DIGITAL (YUNNAN) TECHNOLOGY CO LTD
Filing Date
2026-03-09
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing smart lockers lack security, their single authentication method is easily cracked, traditional mechanical locks are cumbersome to operate and difficult to integrate with modern digital management, and they lack multimodal authentication and intelligent decision-making capabilities.

Method used

Combining digital passwords, biometric recognition, and smartphone interaction, the system employs a central processing unit for decision-making, multi-level authentication, and an electromechanical actuator to achieve precise unlocking and real-time monitoring, while recording operation logs to optimize security.

Benefits of technology

It provides multi-layered security protection, supports multi-modal authentication, ensures the rigor and security of the unlocking process, enhances user experience, monitors in real time to prevent anomalies, and uses data analysis to optimize system performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides an automatic unlocking and closing method for a smart cabinet combining mechanical and digital technologies, belonging to the field of electronic equipment technology. This method includes the following steps: User authentication request: The user selects an authentication method through the smart cabinet's interactive interface. By combining digital password verification, biometric recognition (such as fingerprint or facial recognition), and dual verification modes, the smart cabinet provides multi-layered security protection. Digital verification uses encryption technology to ensure the security of password transmission and storage. Biometric verification utilizes unique human characteristics, making it virtually impossible to copy. Dual verification further enhances the ability to prevent impersonation, ensuring that only users with strict identity verification can unlock the cabinet.
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Description

Technical Field

[0001] This invention belongs to the field of electronic equipment technology, specifically relating to an automatic unlocking and locking method for an intelligent cabinet that combines mechanical and digital technologies. Background Technology

[0002] Traditional mechanical locks and simple digital combination locks are gradually failing to meet the growing demands for security and convenience. With the rapid development of information technology, especially the widespread application of biometrics and cloud computing, the market is placing higher demands on the security and intelligence of smart lockers. However, current technologies for smart lockers often focus on a single authentication method, such as relying solely on digital passwords or biometrics. This not only limits their applicable scenarios but also fails to fully utilize multiple verification methods to enhance security.

[0003] While traditional mechanical locks offer advantages in physical security, they are cumbersome to operate and difficult to integrate with modern digital management systems, hindering remote monitoring and management. On the other hand, purely digital password systems, though easy to operate, are vulnerable to password leaks and cracking. Smart lockers relying solely on biometric technology, while excelling in authentication accuracy and personalization, suffer from high costs and technological limitations.

[0004] Therefore, there is an urgent need for a new generation of automatic unlocking and closing method for smart lockers that combines mechanical strength with digital intelligence, integrating the robustness of traditional mechanical locks with the flexibility and security of modern digital technology. This new method should support multimodal authentication, such as digital passwords, biometric recognition, and smartphone interaction, while utilizing intelligent decision-making and electronic control through a central processing unit to achieve precise control of the mechanical actuators. Furthermore, the system must possess a high degree of self-monitoring capability, responding to anomalies in real time and recording operation logs for subsequent auditing and optimization, ensuring that every unlocking operation is both rapid and secure. Against this backdrop, developing an automatic unlocking and closing method for smart lockers that combines mechanical and digital technologies has become a key technological breakthrough direction for improving the security and convenience of smart locker applications. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic unlocking and closing method for intelligent cabinets that combine mechanical and digital technologies. This method aims to address security vulnerabilities in existing technologies, such as the ease with which passwords can be stolen and the vulnerability of single authentication methods to cracking. Furthermore, traditional intelligent cabinets are not user-friendly, have limited authentication methods, and do not support multimodal authentication, such as digital passwords, biometric recognition, or smartphone interaction. They also fail to utilize the intelligent decision-making and electronic control capabilities of a central processing unit to achieve precise control of the mechanical actuators.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] 1. A method for automatic unlocking and locking of an intelligent cabinet combining mechanical and digital technologies, characterized by comprising the following steps:

[0008] Step 1: User authentication request:

[0009] Users can choose an authentication method through the smart locker's interactive interface, such as entering a numeric password, placing their finger on the fingerprint recognition area, or using a mobile app to scan a QR code / Near Field Communication (NFC).

[0010] The system activates the corresponding biometric module or digital verification logic to prepare to receive and process the authentication information provided by the user.

[0011] Step 2: Identity Verification

[0012] Digital verification: The system compares the password entered by the user with the information pre-stored in the database, or verifies the validity of a one-time password transmitted over the network;

[0013] Biometric verification: Biometric algorithms analyze the collected biological information (such as fingerprint images and facial features) and match it with the user's pre-registered biometric template;

[0014] In two-factor authentication mode, the system requires users to complete two different types of authentication steps to increase security;

[0015] Step 3: Central Processing Unit Decision:

[0016] After receiving the verification result, the microprocessor determines whether the authentication is successful; only when all the necessary verification conditions are met will an unlock command be issued.

[0017] Step 4: Electronic control signal output:

[0018] The central processing unit sends an unlock signal to the motor control unit. This signal contains an unlock command and a possible specific unlock sequence to ensure safe control.

[0019] Step 5: Mechanical actuator response:

[0020] Electric drive unlocking: After receiving a signal, the servo motor or stepper motor precisely rotates or pushes the mechanical structure, such as the unlocking bolt or magnetic lock component, to release the locked state;

[0021] Electromagnetic unlocking: In the design of electromagnetic locks, the system control current passes through the electromagnet to generate magnetic force to attract or release the bolt, thereby unlocking the lock.

[0022] Step 6: Security Monitoring and Feedback

[0023] During the unlocking process, the system's sensors monitor for any abnormal behavior, such as unauthorized intrusion attempts, which will immediately trigger the alarm system.

[0024] After successful unlocking, the user receives clear feedback, such as changes in indicator lights, sound prompts, or information displayed on the screen, confirming that the cabinet door can be opened safely.

[0025] Step 7: Recording and Analysis:

[0026] The system automatically records unlock events, including time, user information, authentication method, etc., for future audit tracking and data analysis, and continuously optimizes system performance and security;

[0027] Step 8: Shutdown and Reset:

[0028] After the user completes the access operation, the cabinet door closes, and the system automatically or with the user's confirmation relocks it, updating the status to the central processor and the cloud, ready to receive the next authentication request.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] 1. In this solution, by combining digital password verification, biometric recognition (such as fingerprint and facial recognition), and dual verification modes, the smart cabinet provides multi-layered security protection. Digital verification uses encryption technology to ensure the security of password transmission and storage. Biometric verification utilizes the unique characteristics of the human body, making it virtually impossible to copy. Dual verification further enhances the ability to prevent impersonation, ensuring that only users with strict identity verification can unlock the cabinet. The decision logic integrated into the central processing unit only issues the unlocking command when all authentication conditions are met, ensuring the rigor and security of the unlocking process. The precise control of electronic control signals and the electromechanical integrated actuator ensure the accuracy and efficiency of the unlocking operation. In addition, the system automatically records unlocking events and can perform data analysis, providing a basis for subsequent system optimization and security strategy adjustments.

[0031] 2. In this solution, the smart locker is equipped with a user-friendly interface that supports multimodal authentication options. Users can flexibly choose the verification method according to their preferences and security needs. After successful unlocking, the system provides clear feedback to the user through indicator lights, sounds, or screen information, making the operation more intuitive and reassuring. The mechanical lock has a built-in sensor network that monitors the environment around the locker in real time. Once abnormal behavior is detected, an alarm is triggered immediately to effectively prevent security threats. This instant feedback mechanism enhances the security monitoring capabilities of the smart locker. Attached Figure Description

[0032] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0033] Figure 1 This is a flowchart illustrating the automatic locking and unlocking method for an intelligent cabinet that combines mechanical and digital technologies according to the present invention. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1

[0036] Please see Figure 1 The present invention provides the following technical solutions:

[0037] An automatic unlocking and locking method for a smart cabinet combining mechanical and digital technologies includes the following steps:

[0038] Step 1: User authentication request:

[0039] Users can choose an authentication method through the smart locker's interactive interface, such as entering a numeric password, placing their finger on the fingerprint recognition area, or using a mobile app to scan a QR code / Near Field Communication (NFC).

[0040] The system activates the corresponding biometric module or digital verification logic to prepare to receive and process the authentication information provided by the user.

[0041] Step 2: Identity Verification

[0042] Digital verification: The system compares the password entered by the user with the information pre-stored in the database, or verifies the validity of a one-time password transmitted over the network;

[0043] Biometric verification: Biometric algorithms analyze the collected biological information (such as fingerprint images and facial features) and match it with the user's pre-registered biometric template;

[0044] In two-factor authentication mode, the system requires users to complete two different types of authentication steps to increase security;

[0045] Step 3: Central Processing Unit Decision:

[0046] After receiving the verification result, the microprocessor determines whether the authentication is successful; only when all the necessary verification conditions are met will an unlock command be issued.

[0047] Step 4: Electronic control signal output:

[0048] The central processing unit sends an unlock signal to the motor control unit. This signal contains an unlock command and a possible specific unlock sequence to ensure safe control.

[0049] Step 5: Mechanical actuator response:

[0050] Electric drive unlocking: After receiving a signal, the servo motor or stepper motor precisely rotates or pushes the mechanical structure, such as the unlocking bolt or magnetic lock component, to release the locked state;

[0051] Electromagnetic unlocking: In the design of electromagnetic locks, the system control current passes through the electromagnet to generate magnetic force to attract or release the bolt, thereby unlocking the lock.

[0052] Step 6: Security Monitoring and Feedback

[0053] During the unlocking process, the system's sensors monitor for any abnormal behavior, such as unauthorized intrusion attempts, which will immediately trigger the alarm system.

[0054] After successful unlocking, the user receives clear feedback, such as changes in indicator lights, sound prompts, or information displayed on the screen, confirming that the cabinet door can be opened safely.

[0055] Step 7: Recording and Analysis:

[0056] The system automatically records unlock events, including time, user information, authentication method, etc., for future audit tracking and data analysis, and continuously optimizes system performance and security;

[0057] Step 8: Shutdown and Reset:

[0058] After the user completes the access operation, the cabinet door closes, and the system automatically or with the user's confirmation relocks it, updating the status to the central processor and the cloud, ready to receive the next authentication request.

[0059] In a specific embodiment of the present invention, step 1: User authentication request:

[0060] User Interface: The smart locker is equipped with a user-friendly interface that allows users to choose the appropriate authentication method based on their personal preferences or security needs. This not only enhances the user experience but also reflects the human-centered design considerations.

[0061] Multimodal authentication options: Offers multiple authentication methods including digital passwords, fingerprint recognition, and QR code / NFC scanning via mobile devices, covering everything from basic digital password protection to advanced biometric technologies to meet different security level requirements in various scenarios.

[0062] Step 2: Identity Verification

[0063] Digital verification: This stage ensures the security of traditional passwords. The system compares user input with information in the database using encryption technology, or verifies one-time passwords (OTPs) sent over the network, effectively preventing the risk of password leakage.

[0064] Biometric verification: Employing advanced biometric algorithms, such as fingerprint or facial recognition technology, it precisely matches the user's biometric template pre-stored in the system, providing a virtually uncopyable means of authentication. This technology greatly enhances security because each person's biometric characteristics are unique.

[0065] Two-factor authentication: In scenarios where security is paramount, the system implements two-factor authentication, requiring users to complete two different types of authentication simultaneously, such as entering a password first and then performing fingerprint recognition. This mechanism significantly reduces the risk of identity theft.

[0066] Step 3: Central Processing Unit Decision:

[0067] Decision-making logic: The microprocessor, acting as the brain of the smart locker, is responsible for receiving and processing all verification information. It determines whether all authentication conditions are met based on preset logic. Only when all security thresholds are crossed will an unlocking decision be made. This process ensures the system's rigor and security.

[0068] Step 4: Electronic control signal output:

[0069] Unlock signal and security control: After the central processing unit confirms successful authentication, it will precisely send an unlock signal to the motor control unit. This signal not only indicates the unlocking action, but may also contain a specific unlocking sequence or key to further enhance security and prevent illegal interference or misoperation. In this way, even if an external party tries to simulate the unlock signal, it will be difficult to succeed, because each unlock has its unique control command.

[0070] Step 5: Mechanical actuator response:

[0071] Electric drive unlocking: High-precision servo motors or stepper motors are used to ensure the reliability and accuracy of the unlocking action. After receiving the unlocking signal from the central processor, these motors precisely control the action of the mechanical structure, such as rotating the unlocking bolt or pushing the magnetic lock component, to achieve fault-free unlocking. This process reflects the ingenious combination of mechatronics technology, ensuring stable operation even in complex or high-frequency use environments.

[0072] Electromagnetic unlocking: For smart cabinets designed with electromagnetic locks, the system supplies power to the electromagnet through the control circuit to generate sufficient magnetic force to attract or release the lock tongue, thereby completing the unlocking operation quickly and quietly. The advantages of electromagnetic unlocking are fast response speed, precise control, and easy remote control, making it very suitable for application scenarios that require immediate response and high security standards.

[0073] Step 6: Security Monitoring and Feedback

[0074] Real-time monitoring: During the unlocking and the entire operation process, the built-in sensor network continuously monitors the internal and external environment of the cabinet. Once abnormal operation is detected (such as forced prying or unauthorized approach attempts), an alarm mechanism is immediately triggered to notify the management personnel and record the abnormal event, effectively preventing security threats.

[0075] User feedback: To improve user experience, the smart locker will provide clear feedback to users in various ways after successful unlocking, such as indicator light changing color, buzzer sounding, or displaying "unlocked" information on the screen, to ensure that users clearly understand the current status and can proceed with the next step with peace of mind;

[0076] Step 7: Recording and Analysis:

[0077] Data logging: Every unlocking event is recorded in detail, including timestamps, user information, authentication methods used, and other critical data. This information is not only essential for retrospective analysis of anomalies but also forms the basis for system performance optimization and security assessment.

[0078] Data Analysis and Optimization: By analyzing unlocking data, the system can identify usage patterns, assess the security and effectiveness of authentication methods, and then adjust strategies, such as strengthening authentication requirements during high-risk periods or optimizing user authentication processes, to continuously improve the overall performance and security of the system.

[0079] Step 8: Shutdown and Reset:

[0080] Automatic reset: After the user completes the storage or retrieval operation and closes the cabinet door, the system automatically senses and reactivates the locking mechanism without any additional operation, simplifying the user process and ensuring that the smart cabinet is always in a safe and closed state.

[0081] Status Update: Once the central processor confirms that the cabinet door has been correctly closed and locked, it will immediately update this status to the local storage and cloud server. This allows administrators to remotely monitor the real-time status of each smart cabinet, providing accurate information for subsequent maintenance and scheduling, while also preparing to receive the next user's authentication request, maintaining service continuity and efficiency.

[0082] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for automatic unlocking and locking of an intelligent cabinet combining mechanical and digital technologies, characterized in that, It includes the following steps: Step 1: User authentication request: Users can choose an authentication method through the smart locker's interactive interface, such as entering a numeric password, placing their finger on the fingerprint recognition area, or using a mobile app to scan a QR code / Near Field Communication (NFC). The system activates the corresponding biometric module or digital verification logic to prepare to receive and process the authentication information provided by the user. Step 2: Identity Verification Digital verification: The system compares the password entered by the user with the information pre-stored in the database, or verifies the validity of a one-time password transmitted over the network; Biometric verification: Biometric algorithms analyze the collected biological information (such as fingerprint images and facial features) and match it with the user's pre-registered biometric template; In two-factor authentication mode, the system requires users to complete two different types of authentication steps to increase security; Step 3: Central Processing Unit Decision: After receiving the verification result, the microprocessor determines whether the authentication is successful; only when all the necessary verification conditions are met will an unlock command be issued. Step 4: Electronic control signal output: The central processing unit sends an unlock signal to the motor control unit. This signal contains an unlock command and a possible specific unlock sequence to ensure safe control. Step 5: Mechanical actuator response: Electric drive unlocking: After receiving a signal, the servo motor or stepper motor precisely rotates or pushes the mechanical structure, such as the unlocking bolt or magnetic lock component, to release the locked state; Electromagnetic unlocking: In the design of electromagnetic locks, the system control current passes through the electromagnet to generate magnetic force to attract or release the bolt, thereby unlocking the lock. Step 6: Security Monitoring and Feedback During the unlocking process, the system's sensors monitor for any abnormal behavior, such as unauthorized intrusion attempts, which will immediately trigger the alarm system. After successful unlocking, the user receives clear feedback, such as changes in indicator lights, sound prompts, or information displayed on the screen, confirming that the cabinet door can be opened safely. Step 7: Recording and Analysis: The system automatically records unlock events, including time, user information, authentication method, etc., for future audit tracking and data analysis, and continuously optimizes system performance and security; Step 8: Shutdown and Reset: After the user completes the access operation, the cabinet door closes, and the system automatically or with the user's confirmation relocks it, updating the status to the central processor and the cloud, ready to receive the next authentication request.